Defrère S

ObjectiveTo evaluate, in peritoneal, ovarian, and rectovaginal endometriotic lesions, expression of steroidogenic enzymes involved in the activation and inactivation of estrogens: 17β-hydroxysteroid dehydrogenase type 1 (HSD17B1) and 2 (HSD…

ObjectiveTo study the occurrence of nerve fibers in deep nodular endometriotic lesions after nodules were induced in baboons and nerve fiber densities measured 6 months after the grafting procedure.DesignExperimental animal study.SettingAca…

ObjectiveTo establish an experimental model for the study of deep nodular endometriosis.DesignInduction of nodular endometriosis in baboons by grafting different uterine specimens to the peritoneal cavity.SettingResearch and university faci…

OBJECTIVE: To update, analyze, and summarize the literature concerning nuclear factor-kappaB (NF-κB) participation in endometriosis pathophysiology. DESIGN: Review. RESULT(S): Nuclear factor-kappaB is physiologically activated in the huma…

ObjectiveTo evaluate the adverse effects of endometriomas on ovarian reserve.DesignAnalysis of prospectively collected biopsy samples.SettingGynecology research unit in a university hospital.Patient(s)Women younger than age 35 years with en…

BACKGROUND: Steroid sulfatase (STS) is involved in estrogen biosynthesis and expressed in eutopic and ectopic endometrium of disease-free and endometriosis patients. The present study was designed to investigate its role in endometriosis de…

Endometriosis is a chronic pelvic inflammatory process. Local inflammation is known to play a role in pain and infertility associated with the disease, and may be extensively involved in molecular and cellular processes leading to endometri…

ObjectiveTo determinethe prevalence of spontaneous endometriosis andthe incidence of induced endometriosis after endocervical canal resection in baboons.DesignInduction and follow-up of endometriosis in baboons, which is one of the primate …

ObjectiveTo compare expression of homeobox A (HOXA) genes involved in the differentiation of the female reproductive tract in deep endometriotic nodules and peritoneal lesions.DesignProspective experimental study.SettingAcademic gynecology …

ObjectiveTo evaluate the role of nuclear factor-κB (NF-κB) in the pathogenesis of endometriosis.DesignA literature search was conducted in PubMed to identify all relevant citations.Result(s)Our findings highlight the important role of NF-κB…

BACKGROUND: Aromatase has been reported to be involved in estrogen biosynthesis and expressed in eutopic and ectopic endometrium of endometriosis patients. The objective of the present study was to investigate its expression and localizatio…

BACKGROUND/AIMS: Endometriosis is known to be an estrogen-dependent disease. However, only a few studies have analyzed the effect of estrogen treatment in mice xenotransplanted with human endometrium. The objective of this study was to adap…

BACKGROUND: Increased peritoneal eicosanoid concentrations have been reported in endometriosis patients and might be important in disease-associated pain and inflammation. Here, we evaluated the expression of key biosynthetic and catabolic …

Classic murine endometriosis models may be insufficient to evaluate the effect of therapeutic agents on endometriosis development, because the process of identification and measurement of induced lesions is often impeded, as implants are sm…

It is widely known that angiogenesis plays a key role in endometriotic lesion formation and development. Antiangiogenic treatments aimed at inhibiting new vessel formation have proven efficient in experimental models. However, as antiangiog…

ObjectiveTo further investigate peritoneal iron disruption in endometriosis by studying iron storage in peritoneal macrophages of patients with endometriosis compared with controls.DesignCross-sectional study.SettingAcademic gynecology rese…

The aim of this study is to review the current literature associating endometriosis with iron and to discuss the potential causes and consequences of iron overload in the pelvic cavity. Indeed, iron is essential for all living organisms. Ho…

BACKGROUND/AIMS: The aim of this study was to induce endometriosis in female rhesus macaques (Macaca mulatta) for research purposes. METHODS: Three female monkeys from 4 to 4.5 years of age underwent three consecutive attempts at endometrio…

BACKGROUND: In vitro studies suggest that the transcription factor nuclear factor-kappa B (NF-kappaB) is implicated in the transduction of proinflammatory signals in endometriosis. The aim of this study was to investigate the involvement of…

Endometriosis is characterized by pelvic inflammation that shows an increased number of activated peritoneal macrophages and their secreted products such as cytokines, growth factors, and angiogenic factors. Our results show that activation…

Red (active), black and white endometriotic lesions are characteristic of peritoneal endometriosis. The transcription factor nuclear factor-kappa B (NF-kappaB) activates proinflammatory, proliferative and antiapoptotic genes in many cell ty…

BACKGROUND: Iron deposits are characteristic of endometriotic lesions, and pelvic iron concentrations are higher in endometriosis patients than in women without endometriosis. In this study, the effect of iron overload and iron chelation on…

BACKGROUND: In animal models of endometriosis, the identification and quantification of lesions originating from human endometrium is often hampered by the small size of the implants and their embedding in murine tissue. The purpose of the …