Circumvention of Hepato-toxicity of Paracetamol by Co-administering with Flavonoids in the treatment of Osteoarthritis

Circumvention of Hepato-toxicity of Paracetamol by Co-administering with Flavonoids in the treatment of Osteoarthritis | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Circumvention of Hepato-toxicity of Paracetamol by Co-administering with Flavonoids in the treatment of Osteoarthritis sai priyanka kukkala, Dr G Srikar Grandhi This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4955542/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Objectives The objective of present study is to develop novel pharmaceutical dosage form to reduce the hepatotoxicity of Paracetamol when induced in higher doses in treatment of Osteoarthritis. The effect of Quercetin in controlling paracetamol toxicity was planned to be studied by conducting in vivo studies on rats for 21days 1 . The outcome of the present study is to show that Quercetin shows high impact in reducing the hepatotoxicity caused by paracetamol due to release of toxic metabolite NAPQI by cytochrome P-450 during metabolism process. Materials and methods Rats were treated with Paracetamol in combination with different dose strengths of quercetin, and with silymarin as standard. Results Quercetin is given in doses of 5, 10, and 15 mg/kg body weight. with paracetamol lowered the blood levels of SGOT, SGPT, ALP, DB, and TB while restoring albumin & total protein levels to normal in a dose-varying way in comparison to the toxic control. Histopathology of liver and kidney were done for cell necrosis 2 . Chrsyin therapy at low doses resulted in a modest recovery from necrosis, vacuolization, inflammation, and fatty alterations. Moderate recovery from necrosis, vacuolization, lipid alterations, and inflammation was observed with medium dose therapy 3 . Treatment at a high dose maintained the liver's natural architecture. Conclusion The current study found that Quercetin inhibits the CYP2E1 mediated metabolism, as a result reduces the formation of toxic metabolite NAPQI by suppressing the liver and kidney biomarkers 4 . Hence reducing the liver toxicity Cytochrome P-450 Paracetamol NAPQI Quercetin Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 1. INTRODUCTION Osteoarthritis is the most prevalent kind having the risk of mobility impairment. 1 Mechanical considerations play a major part in the multifactorial process of osteoarthritis (OA) which is distinguished by modifications in the joints with regard to the overall structure and functionality. 5 Osteoarthritis is of two groups: primary and secondary type. Although OA displays as soreness in the joints and loss of functionality, the severity is clinically extreme 6 . Water makes up the majority of cartilage's composition (70%) along with a type II collagen framework, proteoglycans, and glycosaminoglycan’s. The synovium supplies nutrients to the chondrocytes through diffusion, and further joint movements facilitate the circulation of synovial fluid. In people with osteoarthritis, paracetamol is effective in terms of reducing pain and enhancing physical performance 7 . Since NSAID usage for long period of time increases the risk of cardiovascular and gastrointestinal adverse effects 8 . 9 . 10 . Hence, paracetamol is often the first-line therapy for mild to moderate pain management in osteoarthritis. However, paracetamol is taken more frequently 11 , 12 Flavonoids are phenolic compounds with biological properties including antiallergenic, antiviral, anti-inflammatory, and vasodilating effects 13 , 14 . "Flavus," which meaning yellow in Latin, is where the term flavonoids originate. Flavonoids have the capacity to snare free radicals and prevent lipid peroxidation. 13 Quercetin is a vital bioflavonoid that is found in more than 20 different plant species 15 .Quercetin is an aglycone type of flavonoid glycosides that is obtained from plants and has been used as a dietary supplement 16 , 17 . Natural antioxidants can avert liver damage through the inhibition of the inflammatory response or by scavenging toxins and other oxygen species. Further research has demonstrated that flavonoids like silymarin reduce hepatotoxicity caused by xenobiotics 18 . A complex blend of flavonolignans, silymarin is the main bioactive ingredient of Silybum marianum. It has been shown to have protective properties against xenobiotics, especially the liver. Because silymarin is an antioxidant, it inhibits lipid peroxidation and preserves cell membranes, all of which contribute to its hepatoprotective effects. Another natural flavonoid is chysin (5,7-dihydroxyflavone) 19 . The presence of chysin, which has not been examined as thoroughly as silymarin, is known to be high in propolis, honey, and other plant extracts. Researchers have found that chrysin possesses anti-allergic properties 20 . Present study is conducted to explore the ability of paracetamol in treatment of Osteoarthritis and also reducing the toxicity of paracetamol when taken in repeated doses. Paracetamol in combination with chrysin is chosen in different formulations and conducted invivo studies on rats for 21 days 21 , 22 . blood samples have been collected at various time intervals. Effect of paracetamol individually and along with flavonoids (chrysin) were identified by conducting biochemical analysis of blood samples to find out changes in liver and kidney biomarkers and also histopathological studies to check out cell necrosis and tissue damage 23 , 24 , 25 . 2. MATERIALS&METHODS 2.1 Materials Paracetamol as a gift sample from Aurobindo pvt ltd, used as active ingredient. Quercetin is brought from SISCO Laboratories Pvt Ltd. Ethyl alcohol purchased from SD Chemicals Pvt Ltd; sodium carboxy methyl cellulse purchased from SD fine chemicals; micro crystalline cellulose purchased from Yogi Dye Chemical Industries. 2.2 Experimental animals Animal studies were carried out under the guidelines and approval issued by animal’s ethical committee of Vignan University(VFSTR) vadlamudi, Guntur, A.P, India. Male Wister rats, weighed between 200g and 250 g and at least two months old, were placed in an air-conditioned room at 25 ± 2°C with a 12-hour light/dark cycle and unrestrained access to food and water. Standard feed was used to feed the animals (VRK Nutritional Solutions, Mumbai, India). Every animal ingested 15 g of feed on an average each day. The animals were procured from VFSTR Animal house. Before conducting the study animals were treated according to standard laboratory conditions. The approved protocol number is VFSTR 2046/1AEC/V/2023-5 2.3 Experimental Design The current study used Wistar rats for the in vivo studies. Rats were treated by paracetamol and also in combination with Quercetin and silymarin for period of 21days. Rats were separated into 3 groups having 4 rats in each group. First group is treated with Paracetamol alone; second group is treated with silymarin (CYP2E1 inhibitor), third group treated with Paracetamol in combination of Quercetin through the oral route 2.4 Invivo Studies on Wistar Rats Wister rats were split up into six groups, each consisting of four rats. Group-1: Rats were treated with 1% Sodium carboxy methyl cellulose (Normal) Group-2: Rats were treated with Paracetamol (Pcm) alone (80mg/kg body weight) (Negative control) Group-3: Rats were treated with Silymarin followed by treatment with Pcm (Positive control) Group-4: Rats were initially given treatment with Quercetin (5mg/kg) followed by treatment with Pcm (80mg/kg body weight) Group-5 Rats treated with Quercetin (10mg/kg) followed by treatment with Pcm (80mg/Kg body weight) Group-6 Rats treated with Quercetin (15mg/kg) followed by treatment with Paracetamol (80mg/kg body weight) At the end of the 21st day, 1 milliliter of blood was drawn from each rat in sterilized Eppendorf tubes at different time intervals of 0.3,1, 2,4,6,8,10,12hrs. Blood samples were taken and kept at -20°C. Centrifugation was performed to blood samples for 12 minutes at 10,000 RPM. to extrude out the plasma from blood 2.5 Calculation of Pharmacokinetic Parameters Pharmacokinetic parameters Area under the plasma concentration-time curve from 0 to the last quantifiable concentration's time, Maximum plasma concentration, Findings included the area under the plasma metabolite concentration-time curve from zero to infinity, the time it takes to reach peak plasma concentration, the terminal half-life, the mean residence time, the apparent oral or total body clearance, the apparent volume of distribution at steady state for paracetamol, and the amalgamation of paracetamol with quercetin and silymarin. 2.6 Biochemical Analysis From each rat's orbital sinus, blood samples were taken.. Blood samples were taken both before and after treatments in order to compute the biochemical parameters. The assessment of biochemical parameters was done using the serum that emerged after centrifugation. Using the IFCC method SGOT, SGP and ALP were computed. Uric acid was identified using the uricase method, and urea was determined using the urease–GLDH method Using established techniques, we calculated TP, TB, BUN, and creatinine. 2.7 Histopathological Studies Rats were sacrificed under isoflurane anaesthesia. after overnight fixation (12hrs) of the tissue samples in 10% formalin solution, the tissue is processed for cell block preparation. Steps in the processing of the cell block preparation 70% Ethyl alcohol for 1hr, 95% Ethyl alcohol 1hr, 95% Ethyl alcohol 30min, 95% Ethyl alcohol 30min, Absolute Ethyl alcohol 1hr, Absolute Ethyl alcohol 2 times 1hr each, Xylol 2 times 1hr each, Paraffin 1hr, Paraffin bath for at least 2hr. Precautions taken to prevent any artifacts due to technical problems. As delay in fixation could cause air drying artifacts like giving nuclei pale staining, cytoplasmic and nuclear eosinophilia, the samples were processed as soon as the samples were received in the lab. All the alcohol and xylene grades were filtered everyday using Whatman filter paper and the fixatives were filtered after each case. Samples of tissue from the kidney and liver Thin sections of 3–5 micron thickness were cut from the cell blocks made using a rotary microtome. they were cleaned with NaCl 0.9% solution. Samples of the Kidney (0.1 g) and liver (0.3 g) had been blotted and stored at range of -80 ◦C and homogenizing the tissues in phosphate buffer (pH 7.4) for biochemical analyses, followed by a fifteen-minute centrifugation at 3000 rpm at 4°C.. preserved with paraffin wax and 10% (v/v) formaldehyde, then stained for histological analyses using haematoxylin and eosin stain. The histopathological examination was carried out for animal groups. A semi-quantitative tests approach, as suggested by Dixon et al, was employed to evaluate the pathological changes were recorded. Under a photomicroscope, the kidney sections have been examined for signs of kidney damage, such as cellular necrosis, tubular deterioration, glomerular hyper cellularity, capillary congestion, and haemorrhaging Rats which are treated with 80 mg/kg of paracetamol and displaying significant hepatocyte necrosis in the parenchyma area, in addition to steatosis and bleeding, leukocyte infiltration, and sinusoid dilatation, were identified to be of critical significance for the liver histopathological reports. 3 RESULTS 3.1 Effect of Quercetin on Pharmacokinetics of Paracetamol Table:1 Pharmacokinetic parameters of three distinct formulations of paracetamol alone and in combination with quercetin Parameter Paracetamol (80 mg/kg) Paracetamol + silymarin (100 mg/kg) Paracetamol + Quercetin (5 mg/kg) Paracetamol + Quercetin (10 mg/kg) Paracetamol + Quercetin (15mg/kg) Cmax 9.012 ± 0.234 10.212 ± 0.322 11.012 ± 0.001 11.012 ± 0.223 13.912 ± 0.322 AUC0–12 (µg/ml × h) 52.431 ± 0.344 61.571 ± 0.813 52.431 ± 0.945 63.431 ± 0.234 67.91 ± 0.43 AUC0-∞ (µg/ml × hr) 45.021 ± 0.98 55.016 ± 2.761 63.021 ± 0.654 79.021 ± 1.345 88.021 ± 1.00 tmax (hr) 1.321 ± 0.123 1.112 ± 1.234 1.0382 ± 0.974 1.003 ± 0.452 1.001 ± 0.004 t1/2 (hr 1.923 ± 0.098 2.219 ± 0.743 3.923 ± 1.832 3.923 ± 0.004 6.923 ± 1.234 MRT (hr) 6.313 ± 0.341 6.931 ± 0.533 6.313 ± 0.532 6.313 ± 1.757 6.313 ± 0.943 CL/F (ml/hr 0.292 ± 1.324 0.112 ± 0.115 0.281 ± 1.945 0.212 ± 0.013 0.145 ± 0.211 Vz/F 2.193 ± 0.375 1.476 ± 0.44 1.943 ± 0.75 1.635 ± 1.335 1.145 ± 0.843 Vss/F 2.653 ± 1.384 1.673 ± 0.067 1.983 ± 0.678 1.876 ± 0.194 1.233 ± 0.255 Abbreviations: C max: Maximum plasma concentration, Area under the plasma concentration-time curve from zero to the time of the last quantifiable concentration, Area under the plasma metabolite concentration-time curve from zero to infinity; t max, time to reach peak plasma concentration; t 1/2, terminal half‐life; MRT, mean residence time; CL/F, apparent total body clearance or oral clearance Vz/F, apparent volume of distribution; Vss/ F, apparent volume of distribution at steady state 3.2 Biochemical Analysis of Paracetamol with flavonoids Effect of Quercetin on Liver biomarkers Treatment with paracetamol (80 mg/kg) substantially raised blood levels of SGOT, SGPT, ALP, DB, and TB, while lowering total protein and albumin levels compared to the control. In comparison to the toxic control, the use of quercetin at doses of 5, 10, and 15 mg/kg b.wt. in combination with paracetamol reduced blood levels of SGOT, SGPT, ALP, DB, and TB while normalizing total protein and albumin levels in a dose-dependent manner. The impact of quercetin on serum liver indicators is displayed in Figure No. 2. Rat kidney functioning biomarkers : The impact of quercetin on their structure Figure 2 illustrates how quercetin affects serum kidney indicators. Comparing the creatinine, uric acid, and urea levels of the animals treated with 80 mg/kg of paracetamol to those of the normal control, there were slight increases. When quercetin was administered at doses of 5, 10, and 15 mg/kg combined with paracetamol, the patient recovered in a way that was similar to normal healing. 3.3 Histopathology of liver and Kidney Discussion Quercetin is a member of a broad group of plant-derived polyphenolic chemicals. One of the flavonoids that is most commonly found in diets, lovage, red onions, green and black tea, and capers all contain significant amounts of it (Anand David et al., 2016). Numerous research has shown the advantages, but few have questioned the safety of quercetin (Dunnick and Hailey, 1992). quercetin show hepato-protective effects on a variety of pathogens The present study was carried out to determine quercetin's impact on paracetamol toxicity. Initially rats were treated with paracetamol to identify for the change in liver and kidney biomarkers. Liver activity and its functioning is identified by measuring SGOT, SGPT, TB, ALP, TP. All these biomarkers showed elevated levels than required because of their over flow into blood stream ultimately leads to abnormal activity of liver. Rats which are treated with paracetamol followed by Quercetin Hepatotoxicity biomarkers (ALT, AST, ALP, and LDH) revealed substantially (p<0.05) elevated values in the quercetin higher dosage group (Group Il) compared to the control group, suggesting the onset of hepatotoxicity at these dosages. Animals in Group II had significantly greater ALP levels (p<0.05) than those in Group I, the control group. The liver sections showed uniformly distributed normal hepatocytes with the bile duct, hepatic artery, and central vein when the dose concentrations in Group III and Group IV animals were compared to the control (Group I). Histological alterations were also absent. No significant damaged areas were observed in Group V animals; instead, only hydropic changes, including ballooning and degeneration in hepatocytes, were observed. High dose treatment groups (Groups III, IV, and V) showed a substantial reduction in reduced glutathione content (GSH). Glutathione content in the quercetin dosing group (Group II) remained unchanged as compared to the reports identified in control group. It has been demonstrated by evidence that all the hazardous & nephrotoxicity) has been linked to the use of paracetamol.. Within this research, the impact urea measurements to look at the effects of quercetin on renal function. Urine, blood urea nitrogen, and creatinine. These findings showed that blood urea, creatinine, uric acid, and serum urea levels after taking paracetamol, nitrogen levels increased, identifying renal issues. Quercetin was shown to dramatically enhance the plasma concentrations, AUC, Cmax, and MRT of valsartan in another investigation (Challa et al., 2013). This increase may have been caused by inhibition of CYP3A4 and P-gp. Due to CYP3A4 and P-gp inhibition, quercetin increased the bioavailability, AUC, Cmax. In the present study It has been discovered that quercetin inhibits CYP3A4 in normal rats. Due to CYP3A4 inhibition, treatment with quercetin increased all pharmacokinetic parameters, including Cmax, AUC, t1/2, and MRT, as compared to the low dose (control group) Conclusions The primary objective of the current study was to determine how quercetin affects paracetamol's hepatotoxicity. . Histological examination showed that the positive paracetamol control groups did not exhibit steatosis. On the other hand, rats treated with paracetamol showed necrosis and fibrosis along with polymorph nuclear infiltration seen in the centrilobular area. Quercetin's antioxidative property showed high impact on its hepatoprotective effects on liver damage brought on by paracetamol. Quercetin perhaps acted as an antioxidant, scavenging free reactive oxygen species and preventing the chain reactions of free radicals produced by paracetamol from reaching their hepatic tissue. Declarations Acknowledgements The authors thank all of the participants in the current experiment for their participation. We would especially like to thank the Pharmaceutics department, vignan university for their enthusiastic participation in this study. Author information K Sai Priyanka & Dr G Srikar Authors and Affiliations Department of Pharmaceutical Sciences, School of Biotechnology and Pharmaceutical Sciences, Vignan's Foundation for Science, Technology and Research, (VFSTR) Vadlamudi, Guntur 522213, Andhra Pradesh, India. Department of Pharmaceutical Sciences, School of Biotechnology and Pharmaceutical Sciences, (VFSTR) Vadlamudi, Guntur 522213, Andhra Pradesh, India. Corresponding authors Dr G. Srikar & Ms K Sai Priyanka Ethics Declarations Conflict of interest The authors declare that they have no financial or non-financial competing interests that are directly or indirectly related to this work. Ethical approval This study was approved by the Ethics Committee . 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-4955542","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":348055582,"identity":"f2c13fdf-8da6-469a-ae39-67028eab52ef","order_by":0,"name":"sai priyanka kukkala","email":"data:image/png;base64,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","orcid":"https://orcid.org/0000-0002-7944-0513","institution":"Vignan's Foundation for Science Technology and Research Department of Sciences and Humanities","correspondingAuthor":true,"prefix":"","firstName":"sai","middleName":"priyanka","lastName":"kukkala","suffix":""},{"id":348055583,"identity":"4be80b92-6f2d-4d8f-90e2-13d51265614c","order_by":1,"name":"Dr G Srikar Grandhi","email":"","orcid":"https://orcid.org/0000-0003-3944-1869","institution":"Vignan's Foundation for Science Technology and Research Department of Sciences and Humanities","correspondingAuthor":false,"prefix":"Dr","firstName":"G","middleName":"Srikar","lastName":"Grandhi","suffix":""}],"badges":[],"createdAt":"2024-08-22 06:15:35","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4955542/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4955542/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":65727524,"identity":"ff355428-817a-432c-8ae6-0fe1bca6bce4","added_by":"auto","created_at":"2024-10-01 19:02:58","extension":"png","order_by":1,"title":"Figure 1","display":"","copyAsset":false,"role":"figure","size":31528,"visible":true,"origin":"","legend":"\u003cp\u003e\u003cstrong\u003eMetabolic pathway of paracetamol\u003c/strong\u003e\u003c/p\u003e","description":"","filename":"1.png","url":"https://assets-eu.researchsquare.com/files/rs-4955542/v1/b17453afd5e0e4298ec7b282.png"},{"id":65727521,"identity":"36053d10-6441-457e-8f3e-25716adb23ee","added_by":"auto","created_at":"2024-10-01 19:02:58","extension":"png","order_by":2,"title":"Figure 2","display":"","copyAsset":false,"role":"figure","size":2102543,"visible":true,"origin":"","legend":"\u003cp\u003e\u003cstrong\u003eFigure No. 1: Effects of Chrysin treatment on blood serum SGOT, SGPT, Total and Direct Bilirubin, Total Protein and Albumin levels against Paracetamol induced hepatotoxicity.\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eValues are exemplified as Mean ± SEM. Statistical analysis performed using one-way ANOVA. ***P \u0026lt;0.001, **p\u0026lt; 0.01, *p\u0026lt; 0.05 Vs Toxic control.\u003c/p\u003e","description":"","filename":"11.png","url":"https://assets-eu.researchsquare.com/files/rs-4955542/v1/da566fe0e49320da1290dd6e.png"},{"id":65728013,"identity":"7eae6167-4be1-46cb-9be9-77b22401a57b","added_by":"auto","created_at":"2024-10-01 19:10:58","extension":"png","order_by":3,"title":"Figure 3","display":"","copyAsset":false,"role":"figure","size":810219,"visible":true,"origin":"","legend":"\u003cp\u003e\u003cstrong\u003eFigure No. 3: Effects of Chrysin treatment on blood serum Creatinine, Uric acid and Urea levels against Paracetamol induced nephrotoxicity.\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eValues are exemplified as Mean ± SEM. Statistical analysis performed using one-way ANOVA. ***P \u0026lt;0.001, **p\u0026lt; 0.01, *p\u0026lt; 0.05 Vs Toxic control.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eAbbreviations: \u003c/strong\u003eSGOT: Serum Glutamic Oxaloacetate Transaminase; SGPT: Serum Glutamic Pyruvate Transaminase; ALP: Alkaline Phosphatase; TP: Total Protein; TB: Total Bilirubin; DB: Direct Bilirubin; IDB: Indirect Bilirubin\u003c/p\u003e","description":"","filename":"3.png","url":"https://assets-eu.researchsquare.com/files/rs-4955542/v1/2998e2ba94bb991e5e8d190b.png"},{"id":65727520,"identity":"ccfd60f7-5961-40a6-b0b2-9521e84b9480","added_by":"auto","created_at":"2024-10-01 19:02:58","extension":"png","order_by":4,"title":"Figure 4","display":"","copyAsset":false,"role":"figure","size":6747508,"visible":true,"origin":"","legend":"\u003cp\u003e\u003cstrong\u003eFigure No.4: Histopathology of Liver.\u003c/strong\u003e\u003c/p\u003e","description":"","filename":"4.png","url":"https://assets-eu.researchsquare.com/files/rs-4955542/v1/8def2b5d5c7880c5b5a85706.png"},{"id":65727522,"identity":"518d73b0-417d-45c6-bf7a-0ced6584e7da","added_by":"auto","created_at":"2024-10-01 19:02:58","extension":"png","order_by":5,"title":"Figure 5","display":"","copyAsset":false,"role":"figure","size":4605787,"visible":true,"origin":"","legend":"\u003cp\u003eLegend not included with this version\u003c/p\u003e","description":"","filename":"5.png","url":"https://assets-eu.researchsquare.com/files/rs-4955542/v1/c7bf2fc68d408d31ef4535fe.png"},{"id":65793292,"identity":"c08fc31b-639c-4bef-a248-7c77770ad33c","added_by":"auto","created_at":"2024-10-02 18:24:11","extension":"pdf","order_by":0,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":22900920,"visible":true,"origin":"","legend":"","description":"","filename":"manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4955542/v1/c6569cff-dcc5-4465-a420-454ec047cb1c.pdf"}],"financialInterests":"","formattedTitle":"Circumvention of Hepato-toxicity of Paracetamol by Co-administering with Flavonoids in the treatment of Osteoarthritis","fulltext":[{"header":"1. INTRODUCTION","content":"\u003cp\u003eOsteoarthritis is the most prevalent kind having the risk of mobility impairment.\u003csup\u003e\u003cspan citationid=\"CR1\" class=\"CitationRef\"\u003e1\u003c/span\u003e\u003c/sup\u003e Mechanical considerations play a major part in the multifactorial process of osteoarthritis (OA) which is distinguished by modifications in the joints with regard to the overall structure and functionality.\u003csup\u003e\u003cspan citationid=\"CR5\" class=\"CitationRef\"\u003e5\u003c/span\u003e\u003c/sup\u003eOsteoarthritis is of two groups: primary and secondary type. Although OA displays as soreness in the joints and loss of functionality, the severity is clinically extreme\u003csup\u003e\u003cspan citationid=\"CR6\" class=\"CitationRef\"\u003e6\u003c/span\u003e\u003c/sup\u003e. Water makes up the majority of cartilage's composition (70%) along with a type II collagen framework, proteoglycans, and glycosaminoglycan\u0026rsquo;s. The synovium supplies nutrients to the chondrocytes through diffusion, and further joint movements facilitate the circulation of synovial fluid. In people with osteoarthritis, paracetamol is effective in terms of reducing pain and enhancing physical performance\u003csup\u003e\u003cspan citationid=\"CR7\" class=\"CitationRef\"\u003e7\u003c/span\u003e\u003c/sup\u003e. Since NSAID usage for long period of time increases the risk of cardiovascular and gastrointestinal adverse effects\u003csup\u003e\u003cspan citationid=\"CR8\" class=\"CitationRef\"\u003e8\u003c/span\u003e.\u003cspan citationid=\"CR9\" class=\"CitationRef\"\u003e9\u003c/span\u003e.\u003cspan citationid=\"CR10\" class=\"CitationRef\"\u003e10\u003c/span\u003e\u003c/sup\u003e. Hence, paracetamol is often the first-line therapy for mild to moderate pain management in osteoarthritis. However, paracetamol is taken more frequently \u003csup\u003e\u003cspan citationid=\"CR11\" class=\"CitationRef\"\u003e11\u003c/span\u003e,\u003cspan citationid=\"CR12\" class=\"CitationRef\"\u003e12\u003c/span\u003e\u003c/sup\u003e\u003c/p\u003e \u003cp\u003e \u003c/p\u003e \u003cp\u003eFlavonoids are phenolic compounds with biological properties including antiallergenic, antiviral, anti-inflammatory, and vasodilating effects\u003csup\u003e\u003cspan citationid=\"CR13\" class=\"CitationRef\"\u003e13\u003c/span\u003e,\u003cspan citationid=\"CR14\" class=\"CitationRef\"\u003e14\u003c/span\u003e\u003c/sup\u003e. \"Flavus,\" which meaning yellow in Latin, is where the term flavonoids originate. Flavonoids have the capacity to snare free radicals and prevent lipid peroxidation.\u003csup\u003e\u003cspan citationid=\"CR13\" class=\"CitationRef\"\u003e13\u003c/span\u003e\u003c/sup\u003eQuercetin is a vital bioflavonoid that is found in more than 20 different plant species \u003csup\u003e\u003cspan citationid=\"CR15\" class=\"CitationRef\"\u003e15\u003c/span\u003e\u003c/sup\u003e .Quercetin is an aglycone type of flavonoid glycosides that is obtained from plants and has been used as a dietary supplement\u003csup\u003e\u003cspan citationid=\"CR16\" class=\"CitationRef\"\u003e16\u003c/span\u003e,\u003cspan citationid=\"CR17\" class=\"CitationRef\"\u003e17\u003c/span\u003e\u003c/sup\u003e.\u003c/p\u003e \u003cp\u003eNatural antioxidants can avert liver damage through the inhibition of the inflammatory response or by scavenging toxins and other oxygen species. Further research has demonstrated that flavonoids like silymarin reduce hepatotoxicity caused by xenobiotics\u003csup\u003e\u003cspan citationid=\"CR18\" class=\"CitationRef\"\u003e18\u003c/span\u003e\u003c/sup\u003e. A complex blend of flavonolignans, silymarin is the main bioactive ingredient of Silybum marianum. It has been shown to have protective properties against xenobiotics, especially the liver. Because silymarin is an antioxidant, it inhibits lipid peroxidation and preserves cell membranes, all of which contribute to its hepatoprotective effects. Another natural flavonoid is chysin (5,7-dihydroxyflavone)\u003csup\u003e\u003cspan citationid=\"CR19\" class=\"CitationRef\"\u003e19\u003c/span\u003e\u003c/sup\u003e. The presence of chysin, which has not been examined as thoroughly as silymarin, is known to be high in propolis, honey, and other plant extracts. Researchers have found that chrysin possesses anti-allergic properties\u003csup\u003e\u003cspan citationid=\"CR20\" class=\"CitationRef\"\u003e20\u003c/span\u003e\u003c/sup\u003e.\u003c/p\u003e \u003cp\u003ePresent study is conducted to explore the ability of paracetamol in treatment of Osteoarthritis and also reducing the toxicity of paracetamol when taken in repeated doses. Paracetamol in combination with chrysin is chosen in different formulations and conducted invivo studies on rats for 21 days\u003csup\u003e\u003cspan citationid=\"CR21\" class=\"CitationRef\"\u003e21\u003c/span\u003e,\u003cspan citationid=\"CR22\" class=\"CitationRef\"\u003e22\u003c/span\u003e\u003c/sup\u003e. blood samples have been collected at various time intervals. Effect of paracetamol individually and along with flavonoids (chrysin) were identified by conducting biochemical analysis of blood samples to find out changes in liver and kidney biomarkers and also histopathological studies to check out cell necrosis and tissue damage\u003csup\u003e\u003cspan citationid=\"CR23\" class=\"CitationRef\"\u003e23\u003c/span\u003e,\u003cspan citationid=\"CR24\" class=\"CitationRef\"\u003e24\u003c/span\u003e,\u003cspan citationid=\"CR25\" class=\"CitationRef\"\u003e25\u003c/span\u003e\u003c/sup\u003e.\u003c/p\u003e"},{"header":"2. MATERIALS\u0026METHODS","content":"\u003cdiv id=\"Sec3\" class=\"Section2\"\u003e \u003ch2\u003e2.1 Materials\u003c/h2\u003e \u003cp\u003eParacetamol as a gift sample from Aurobindo pvt ltd, used as active ingredient. Quercetin is brought from SISCO Laboratories Pvt Ltd. Ethyl alcohol purchased from SD Chemicals Pvt Ltd; sodium carboxy methyl cellulse purchased from SD fine chemicals; micro crystalline cellulose purchased from Yogi Dye Chemical Industries.\u003c/p\u003e \u003c/div\u003e \u003cdiv id=\"Sec4\" class=\"Section2\"\u003e \u003ch2\u003e2.2 Experimental animals\u003c/h2\u003e \u003cp\u003e Animal studies were carried out under the guidelines and approval issued by animal\u0026rsquo;s ethical committee of Vignan University(VFSTR) vadlamudi, Guntur, A.P, India. Male Wister rats, weighed between 200g and 250 g and at least two months old, were placed in an air-conditioned room at 25\u0026thinsp;\u0026plusmn;\u0026thinsp;2\u0026deg;C with a 12-hour light/dark cycle and unrestrained access to food and water. Standard feed was used to feed the animals (VRK Nutritional Solutions, Mumbai, India). Every animal ingested 15 g of feed on an average each day. The animals were procured from VFSTR Animal house. Before conducting the study animals were treated according to standard laboratory conditions. The approved protocol number is \u003cb\u003eVFSTR 2046/1AEC/V/2023-5\u003c/b\u003e\u003c/p\u003e \u003c/div\u003e \u003cdiv id=\"Sec5\" class=\"Section2\"\u003e \u003ch2\u003e2.3 Experimental Design\u003c/h2\u003e \u003cp\u003eThe current study used Wistar rats for the in vivo studies. Rats were treated by paracetamol and also in combination with Quercetin and silymarin for period of 21days. Rats were separated into 3 groups having 4 rats in each group. First group is treated with Paracetamol alone; second group is treated with silymarin (CYP2E1 inhibitor), third group treated with Paracetamol in combination of Quercetin through the oral route\u003c/p\u003e \u003c/div\u003e \u003cdiv id=\"Sec6\" class=\"Section2\"\u003e \u003ch2\u003e2.4 Invivo Studies on Wistar Rats\u003c/h2\u003e \u003cp\u003eWister rats were split up into six groups, each consisting of four rats.\u003c/p\u003e \u003cp\u003eGroup-1: Rats were treated with 1% Sodium carboxy methyl cellulose (Normal)\u003c/p\u003e \u003cp\u003eGroup-2: Rats were treated with Paracetamol (Pcm) alone (80mg/kg body weight) (Negative control)\u003c/p\u003e \u003cp\u003eGroup-3: Rats were treated with Silymarin followed by treatment with Pcm (Positive control)\u003c/p\u003e \u003cp\u003e Group-4: Rats were initially given treatment with Quercetin (5mg/kg) followed by treatment with Pcm (80mg/kg body weight)\u003c/p\u003e \u003cp\u003eGroup-5 Rats treated with Quercetin (10mg/kg) followed by treatment with Pcm (80mg/Kg body weight)\u003c/p\u003e \u003cp\u003eGroup-6 Rats treated with Quercetin (15mg/kg) followed by treatment with Paracetamol (80mg/kg body weight)\u003c/p\u003e \u003cp\u003eAt the end of the 21st day, 1 milliliter of blood was drawn from each rat in sterilized Eppendorf tubes at different time intervals of 0.3,1, 2,4,6,8,10,12hrs. Blood samples were taken and kept at -20\u0026deg;C. Centrifugation was performed to blood samples for 12 minutes at 10,000 RPM. to extrude out the plasma from blood\u003c/p\u003e \u003c/div\u003e \u003cdiv id=\"Sec7\" class=\"Section2\"\u003e \u003ch2\u003e2.5 Calculation of Pharmacokinetic Parameters\u003c/h2\u003e \u003cp\u003ePharmacokinetic parameters Area under the plasma concentration-time curve from 0 to the last quantifiable concentration's time, Maximum plasma concentration, Findings included the area under the plasma metabolite concentration-time curve from zero to infinity, the time it takes to reach peak plasma concentration, the terminal half-life, the mean residence time, the apparent oral or total body clearance, the apparent volume of distribution at steady state for paracetamol, and the amalgamation of paracetamol with quercetin and silymarin.\u003c/p\u003e \u003c/div\u003e \u003cdiv id=\"Sec8\" class=\"Section2\"\u003e \u003ch2\u003e2.6 Biochemical Analysis\u003c/h2\u003e \u003cp\u003eFrom each rat's orbital sinus, blood samples were taken.. Blood samples were taken both before and after treatments in order to compute the biochemical parameters. The assessment of biochemical parameters was done using the serum that emerged after centrifugation.\u003c/p\u003e \u003cp\u003eUsing the IFCC method SGOT, SGP and ALP were computed. Uric acid was identified using the uricase method, and urea was determined using the urease\u0026ndash;GLDH method\u003c/p\u003e \u003cp\u003eUsing established techniques, we calculated TP, TB, BUN, and creatinine.\u003c/p\u003e \u003c/div\u003e \u003cdiv id=\"Sec9\" class=\"Section2\"\u003e \u003ch2\u003e2.7 Histopathological Studies\u003c/h2\u003e \u003cp\u003eRats were sacrificed under isoflurane anaesthesia. after overnight fixation (12hrs) of the tissue samples in 10% formalin solution, the tissue is processed for cell block preparation.\u003c/p\u003e \u003cp\u003e \u003cb\u003eSteps in the processing of the cell block preparation\u003c/b\u003e \u003c/p\u003e \u003cp\u003e70% Ethyl alcohol for 1hr, 95% Ethyl alcohol 1hr, 95% Ethyl alcohol 30min, 95% Ethyl alcohol 30min, Absolute Ethyl alcohol 1hr, Absolute Ethyl alcohol 2 times 1hr each, Xylol 2 times 1hr each, Paraffin 1hr, Paraffin bath for at least 2hr. Precautions taken to prevent any artifacts due to technical problems. As delay in fixation could cause air drying artifacts like giving nuclei pale staining, cytoplasmic and nuclear eosinophilia, the samples were processed as soon as the samples were received in the lab. All the alcohol and xylene grades were filtered everyday using Whatman filter paper and the fixatives were filtered after each case. Samples of tissue from the kidney and liver Thin sections of 3\u0026ndash;5 micron thickness were cut from the cell blocks made using a rotary microtome. they were cleaned with NaCl 0.9% solution. Samples of the Kidney (0.1 g) and liver (0.3 g) had been blotted and stored at range of -80 ◦C and homogenizing the tissues in phosphate buffer (pH 7.4) for biochemical analyses, followed by a fifteen-minute centrifugation at 3000 rpm at 4\u0026deg;C.. preserved with paraffin wax and 10% (v/v) formaldehyde, then stained for histological analyses using haematoxylin and eosin stain. The histopathological examination was carried out for animal groups. A semi-quantitative tests approach, as suggested by Dixon et al, was employed to evaluate the pathological changes were recorded. Under a photomicroscope, the kidney sections have been examined for signs of kidney damage, such as cellular necrosis, tubular deterioration, glomerular hyper cellularity, capillary congestion, and haemorrhaging\u003c/p\u003e \u003cp\u003eRats which are treated with 80 mg/kg of paracetamol and displaying significant hepatocyte necrosis in the parenchyma area, in addition to steatosis and bleeding, leukocyte infiltration, and sinusoid dilatation, were identified to be of critical significance for the liver histopathological reports.\u003c/p\u003e \u003c/div\u003e"},{"header":"3 RESULTS","content":"\u003cdiv id=\"Sec11\" class=\"Section2\"\u003e\n \u003ch2\u003e3.1 Effect of Quercetin on Pharmacokinetics of Paracetamol\u003c/h2\u003e\n \u003cp\u003e\u003cstrong\u003eTable:1 Pharmacokinetic parameters of three distinct formulations of paracetamol alone and in combination with quercetin\u003c/strong\u003e\u0026nbsp;\u003c/p\u003e\n \u003ctable id=\"Taba\" border=\"1\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth align=\"left\"\u003e\n \u003cp\u003eParameter\u003c/p\u003e\n \u003c/th\u003e\n \u003cth align=\"left\"\u003e\n \u003cp\u003eParacetamol (80 mg/kg)\u003c/p\u003e\n \u003c/th\u003e\n \u003cth align=\"left\"\u003e\n \u003cp\u003eParacetamol\u0026thinsp;+\u0026thinsp;silymarin (100 mg/kg)\u003c/p\u003e\n \u003c/th\u003e\n \u003cth align=\"left\"\u003e\n \u003cp\u003eParacetamol\u0026thinsp;+\u0026thinsp;Quercetin (5 mg/kg)\u003c/p\u003e\n \u003c/th\u003e\n \u003cth align=\"left\"\u003e\n \u003cp\u003eParacetamol\u0026thinsp;+\u0026thinsp;Quercetin (10 mg/kg)\u003c/p\u003e\n \u003c/th\u003e\n \u003cth align=\"left\"\u003e\n \u003cp\u003eParacetamol\u0026thinsp;+\u0026thinsp;Quercetin (15mg/kg)\u003c/p\u003e\n \u003c/th\u003e\n \u003c/tr\u003e\n \u003c/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003e\u003cstrong\u003eCmax\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e9.012\u0026thinsp;\u0026plusmn;\u0026thinsp;0.234\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e10.212\u0026thinsp;\u0026plusmn;\u0026thinsp;0.322\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e11.012\u0026thinsp;\u0026plusmn;\u0026thinsp;0.001\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e11.012\u0026thinsp;\u0026plusmn;\u0026thinsp;0.223\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e13.912\u0026thinsp;\u0026plusmn;\u0026thinsp;0.322\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003e\u003cstrong\u003eAUC0\u0026ndash;12 (\u0026micro;g/ml \u0026times; h)\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e52.431\u0026thinsp;\u0026plusmn;\u0026thinsp;0.344\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e61.571\u0026thinsp;\u0026plusmn;\u0026thinsp;0.813\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e52.431\u0026thinsp;\u0026plusmn;\u0026thinsp;0.945\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e63.431\u0026thinsp;\u0026plusmn;\u0026thinsp;0.234\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e67.91\u0026thinsp;\u0026plusmn;\u0026thinsp;0.43\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003e\u003cstrong\u003eAUC0-\u0026infin; (\u0026micro;g/ml \u0026times; hr)\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e45.021\u0026thinsp;\u0026plusmn;\u0026thinsp;0.98\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e55.016\u0026thinsp;\u0026plusmn;\u0026thinsp;2.761\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e63.021\u0026thinsp;\u0026plusmn;\u0026thinsp;0.654\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e79.021\u0026thinsp;\u0026plusmn;\u0026thinsp;1.345\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e88.021\u0026thinsp;\u0026plusmn;\u0026thinsp;1.00\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003e\u003cstrong\u003etmax (hr)\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e1.321\u0026thinsp;\u0026plusmn;\u0026thinsp;0.123\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e1.112\u0026thinsp;\u0026plusmn;\u0026thinsp;1.234\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e1.0382\u0026thinsp;\u0026plusmn;\u0026thinsp;0.974\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e1.003\u0026thinsp;\u0026plusmn;\u0026thinsp;0.452\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e1.001\u0026thinsp;\u0026plusmn;\u0026thinsp;0.004\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003e\u003cstrong\u003et1/2 (hr\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e1.923\u0026thinsp;\u0026plusmn;\u0026thinsp;0.098\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e2.219\u0026thinsp;\u0026plusmn;\u0026thinsp;0.743\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e3.923\u0026thinsp;\u0026plusmn;\u0026thinsp;1.832\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e3.923\u0026thinsp;\u0026plusmn;\u0026thinsp;0.004\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e6.923\u0026thinsp;\u0026plusmn;\u0026thinsp;1.234\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003e\u003cstrong\u003eMRT (hr)\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e6.313\u0026thinsp;\u0026plusmn;\u0026thinsp;0.341\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e6.931\u0026thinsp;\u0026plusmn;\u0026thinsp;0.533\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e6.313\u0026thinsp;\u0026plusmn;\u0026thinsp;0.532\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e6.313\u0026thinsp;\u0026plusmn;\u0026thinsp;1.757\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e6.313\u0026thinsp;\u0026plusmn;\u0026thinsp;0.943\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003e\u003cstrong\u003eCL/F (ml/hr\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e0.292\u0026thinsp;\u0026plusmn;\u0026thinsp;1.324\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e0.112\u0026thinsp;\u0026plusmn;\u0026thinsp;0.115\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e0.281\u0026thinsp;\u0026plusmn;\u0026thinsp;1.945\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e0.212\u0026thinsp;\u0026plusmn;\u0026thinsp;0.013\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e0.145\u0026thinsp;\u0026plusmn;\u0026thinsp;0.211\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003e\u003cstrong\u003eVz/F\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e2.193\u0026thinsp;\u0026plusmn;\u0026thinsp;0.375\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e1.476\u0026thinsp;\u0026plusmn;\u0026thinsp;0.44\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e1.943\u0026thinsp;\u0026plusmn;\u0026thinsp;0.75\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e1.635\u0026thinsp;\u0026plusmn;\u0026thinsp;1.335\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e1.145\u0026thinsp;\u0026plusmn;\u0026thinsp;0.843\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003e\u003cstrong\u003eVss/F\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e2.653\u0026thinsp;\u0026plusmn;\u0026thinsp;1.384\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e1.673\u0026thinsp;\u0026plusmn;\u0026thinsp;0.067\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e1.983\u0026thinsp;\u0026plusmn;\u0026thinsp;0.678\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e1.876\u0026thinsp;\u0026plusmn;\u0026thinsp;0.194\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"char\"\u003e\n \u003cp\u003e1.233\u0026thinsp;\u0026plusmn;\u0026thinsp;0.255\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003c/tbody\u003e\n \u003c/table\u003e\n \u003cp\u003e\u003c/p\u003e\n \u003cp\u003e\u003cstrong\u003eAbbreviations:\u0026nbsp;\u003c/strong\u003eC max: Maximum plasma concentration, Area under the plasma concentration-time curve from zero to the time of the last quantifiable concentration, Area under the plasma metabolite concentration-time curve from zero to infinity; t max, time to reach peak plasma concentration; t 1/2, terminal half‐life; MRT, mean residence time; CL/F, apparent total body clearance or oral clearance Vz/F, apparent volume of distribution; Vss/ F, apparent volume of distribution at steady state\u003c/p\u003e\n \u003cp\u003e\u003cstrong\u003e3.2 Biochemical Analysis of Paracetamol with flavonoids\u0026nbsp;\u003c/strong\u003e\u003cstrong\u003eEffect of Quercetin on Liver biomarkers\u0026nbsp;\u003c/strong\u003e\u003c/p\u003e\n \u003cp\u003eTreatment with paracetamol (80 mg/kg) substantially raised blood levels of SGOT, SGPT, ALP, DB, and TB, while lowering total protein and albumin levels compared to the control. In comparison to the toxic control, the use of quercetin at doses of 5, 10, and 15 mg/kg b.wt. in combination with paracetamol reduced blood levels of SGOT, SGPT, ALP, DB, and TB while normalizing total protein and albumin levels in a dose-dependent manner. The impact of quercetin on serum liver indicators is displayed in Figure No. 2.\u003c/p\u003e\n \u003cp\u003e\u003cstrong\u003eRat kidney functioning biomarkers\u003c/strong\u003e:\u0026nbsp;\u003c/p\u003e\n \u003cp\u003e\u003cstrong\u003eThe impact of quercetin on their structure\u003c/strong\u003e\u0026nbsp;\u003cbr\u003e\u0026nbsp;Figure 2 illustrates how quercetin affects serum kidney indicators. Comparing the creatinine, uric acid, and urea levels of the animals treated with 80 mg/kg of paracetamol to those of the normal control, there were slight increases. When quercetin was administered at doses of 5, 10, and 15 mg/kg combined with paracetamol, the patient recovered in a way that was similar to normal healing.\u0026nbsp;\u003c/p\u003e\n \u003cp\u003e\u003cstrong\u003e3.3 \u0026nbsp;Histopathology of liver and Kidney\u003c/strong\u003e\u003c/p\u003e\n\u003c/div\u003e"},{"header":"Discussion","content":"\u003cp\u003eQuercetin is a member of a broad group of plant-derived polyphenolic chemicals. One of the flavonoids that is most commonly found in diets, lovage, red onions, green and black tea, and capers all contain significant amounts of it (Anand David et al., 2016). Numerous research has shown the advantages, but few have questioned the safety of quercetin (Dunnick and Hailey, 1992). quercetin show hepato-protective effects on a variety of pathogens\u003c/p\u003e\n\u003cp\u003e\u0026nbsp;The present study was carried out to determine quercetin\u0026apos;s impact on paracetamol toxicity. Initially rats were treated with paracetamol to identify for the change in liver and kidney biomarkers. Liver activity and its functioning is identified by measuring SGOT, SGPT, TB, ALP, TP. All these biomarkers showed elevated levels than required because of their over flow into blood stream ultimately leads to abnormal activity of liver. Rats which are treated with paracetamol followed by Quercetin\u0026nbsp;\u003c/p\u003e\n\u003cp\u003eHepatotoxicity biomarkers (ALT, AST, ALP, and LDH) revealed substantially (p\u0026lt;0.05) elevated values in the quercetin higher dosage group (Group Il) compared to the control group, suggesting the onset of hepatotoxicity at these dosages. Animals in Group II had significantly greater ALP levels (p\u0026lt;0.05) than those in Group I, the control group.\u003c/p\u003e\n\u003cp\u003eThe liver sections showed uniformly distributed normal hepatocytes with the bile duct, hepatic artery, and central vein when the dose concentrations in Group III and Group IV animals were compared to the control (Group I). Histological alterations were also absent. No significant damaged areas were observed in Group V animals; instead, only hydropic changes, including ballooning and degeneration in hepatocytes, were observed.\u003c/p\u003e\n\u003cp\u003eHigh dose treatment groups (Groups III, IV, and V) showed a substantial reduction in reduced glutathione content (GSH). Glutathione content in the quercetin dosing group (Group II) remained unchanged as compared \u0026nbsp; to the \u0026nbsp;reports identified in control group.\u003c/p\u003e\n\u003cp\u003eIt has been demonstrated by evidence that all the hazardous \u0026amp; nephrotoxicity) has been linked to the use of paracetamol.. Within this research, the impact urea measurements to look at the effects of quercetin on renal function. \u0026nbsp;Urine, blood urea nitrogen, and creatinine. These findings showed that blood urea, creatinine, uric acid, and serum urea levels after taking paracetamol, nitrogen levels increased, identifying renal issues.\u0026nbsp;\u003c/p\u003e\n\u003cp\u003eQuercetin was shown to dramatically enhance the plasma concentrations, AUC, Cmax, and MRT of valsartan in another investigation (Challa et al., 2013). This increase may have been caused by inhibition of CYP3A4 and P-gp. Due to CYP3A4 and P-gp inhibition, quercetin increased the bioavailability, AUC, Cmax. In the present study It has been discovered that quercetin inhibits CYP3A4 in normal rats. Due to CYP3A4 inhibition, treatment with quercetin increased all pharmacokinetic parameters, including Cmax, AUC, t1/2, and MRT, as compared to the low dose (control group)\u003c/p\u003e"},{"header":"Conclusions","content":"\u003cp\u003eThe primary objective of the current study was to determine how quercetin affects paracetamol\u0026apos;s hepatotoxicity. . Histological examination showed that the positive paracetamol control groups did not exhibit steatosis. On the other hand, rats treated with paracetamol showed necrosis and fibrosis along with polymorph nuclear infiltration seen in the centrilobular area. Quercetin\u0026apos;s antioxidative property showed high impact on its hepatoprotective effects on liver damage brought on by paracetamol. Quercetin perhaps acted as an antioxidant, scavenging free reactive oxygen species and preventing the chain reactions of free radicals produced by paracetamol from reaching their hepatic tissue.\u003c/p\u003e\n"},{"header":"Declarations","content":"\u003cp\u003e\u003cstrong\u003eAcknowledgements\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003e\u0026nbsp;The authors thank all of the participants in the current experiment for their participation. We would especially like to thank the Pharmaceutics department, vignan university for their enthusiastic participation in this study.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eAuthor information\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eK Sai Priyanka \u0026amp; Dr G Srikar\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eAuthors and Affiliations\u003c/strong\u003e\u003c/p\u003e\n\u003col class=\"decimal_type\"\u003e\n \u003cli\u003eDepartment of Pharmaceutical Sciences, School of Biotechnology and Pharmaceutical Sciences, Vignan\u0026apos;s Foundation for Science, Technology and Research, (VFSTR) Vadlamudi, Guntur 522213, Andhra Pradesh, India.\u003c/li\u003e\n \u003cli\u003eDepartment of Pharmaceutical Sciences, School of Biotechnology and Pharmaceutical Sciences, (VFSTR) Vadlamudi, Guntur 522213, Andhra Pradesh, India.\u003c/li\u003e\n\u003c/ol\u003e\n\u003cp\u003e\u0026nbsp;\u003cstrong\u003eCorresponding authors\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eDr G. Srikar \u0026amp; Ms K Sai Priyanka\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eEthics Declarations\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eConflict of interest\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eThe authors declare that they have no financial or non-financial competing interests that are directly or indirectly related to this work.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eEthical approval\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eThis study was approved by the Ethics Committee . The animals were procured from VFSTR Animal house. Before conducting the study animals were treated according to standard laboratory conditions. The approved protocol number is VFSTR 2046/1AEC/V/2023-5\u003c/p\u003e"},{"header":"References","content":"\u003col\u003e\n\u003cli\u003ePeach CA, Carr AJ, Loughlin J. Recent advances in the genetic investigation of osteoarthritis. Trends Mol Med 2005;11: 186-91. 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Metabolism and disposition of acetaminophen: recent advances in relation to hepatotoxicity and diagnosis. Pharm Res. 30(9):2174\u0026ndash;2187. \u003c/li\u003e\n\u003c/ol\u003e"}],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":true,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":false,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":false,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Cytochrome P-450, Paracetamol, NAPQI, Quercetin","lastPublishedDoi":"10.21203/rs.3.rs-4955542/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4955542/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003ch2\u003eObjectives\u003c/h2\u003e \u003cp\u003eThe objective of present study is to develop novel pharmaceutical dosage form to reduce the hepatotoxicity of Paracetamol when induced in higher doses in treatment of Osteoarthritis. The effect of Quercetin in controlling paracetamol toxicity was planned to be studied by conducting in vivo studies on rats for 21days\u003csup\u003e\u003cspan citationid=\"CR1\" class=\"CitationRef\"\u003e1\u003c/span\u003e\u003c/sup\u003e. The outcome of the present study is to show that Quercetin shows high impact in reducing the hepatotoxicity caused by paracetamol due to release of toxic metabolite NAPQI by cytochrome P-450 during metabolism process.\u003c/p\u003e\u003ch2\u003eMaterials and methods\u003c/h2\u003e \u003cp\u003eRats were treated with Paracetamol in combination with different dose strengths of quercetin, and with silymarin as standard.\u003c/p\u003e\u003ch2\u003eResults\u003c/h2\u003e \u003cp\u003eQuercetin is given in doses of 5, 10, and 15 mg/kg body weight. with paracetamol lowered the blood levels of SGOT, SGPT, ALP, DB, and TB while restoring albumin \u0026amp; total protein levels to normal in a dose-varying way in comparison to the toxic control. Histopathology of liver and kidney were done for cell necrosis\u003csup\u003e\u003cspan citationid=\"CR2\" class=\"CitationRef\"\u003e2\u003c/span\u003e\u003c/sup\u003e. Chrsyin therapy at low doses resulted in a modest recovery from necrosis, vacuolization, inflammation, and fatty alterations. Moderate recovery from necrosis, vacuolization, lipid alterations, and inflammation was observed with medium dose therapy\u003csup\u003e\u003cspan citationid=\"CR3\" class=\"CitationRef\"\u003e3\u003c/span\u003e\u003c/sup\u003e. Treatment at a high dose maintained the liver's natural architecture.\u003c/p\u003e\u003ch2\u003eConclusion\u003c/h2\u003e \u003cp\u003eThe current study found that Quercetin inhibits the CYP2E1 mediated metabolism, as a result reduces the formation of toxic metabolite NAPQI by suppressing the liver and kidney biomarkers\u003csup\u003e\u003cspan citationid=\"CR4\" class=\"CitationRef\"\u003e4\u003c/span\u003e\u003c/sup\u003e. Hence reducing the liver toxicity\u003c/p\u003e","manuscriptTitle":"Circumvention of Hepato-toxicity of Paracetamol by Co-administering with Flavonoids in the treatment of Osteoarthritis","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-10-01 19:02:53","doi":"10.21203/rs.3.rs-4955542/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"b611d300-d2be-4a98-b3e8-b9fdf1b9af44","owner":[],"postedDate":"October 1st, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2024-10-02T18:15:55+00:00","versionOfRecord":[],"versionCreatedAt":"2024-10-01 19:02:53","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-4955542","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-4955542","identity":"rs-4955542","version":["v1"]},"buildId":"qtupq5eGEP_6zYnWcrvyt","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}