Robert Jach

OBJECTIVES: Ovarian stimulation (OS) and pregnancy were shown to be associated with a prothrombotic state. We sought to determine whether a positive pregnancy outcome is related to fibrin clot properties and thrombin generation in women wit…

PURPOSE: To compare uterine ultrasound measurements in women with normogonadotropic anovulation, specifically those with polycystic ovary syndrome (PCOS) and hypothalamic-pituitary-ovarian dysfunction (HPOD), with those of regularly menstru…

BACKGROUND: Pelvic endometriosis is an estrogen-driven inflammatory syndrome of unknown origin that alters the peritoneal microenvironment and likely impairs endometrial receptivity, adversely affecting fertility. Chronic endometritis (CE) …

PURPOSE: Polycyclic aromatic hydrocarbons (PAHs), present in air and food, generated during energy production and waste incineration, are known for health toxicity. PAHs may activate the aryl hydrocarbon receptor, which could in turn modify…

BACKGROUND: We study the relationship between phoenixin (PNX-14), nesfatin-1 (NES-1), dopamine (DA) and oxytocin (OT) levels together with pregnancy rates in women after ovarian stimulation (OS). METHODS: In a prospective case-control stud…

Endometriosis is a disease affecting mainly women of childbearing age, where ectopic endometrial lesions occur outside the uterine cavity. Its main symptoms are chronic pain, infertility and dysmenorrhea. These symptoms significantly reduce…

RESEARCH QUESTION: Is there a difference in fibrin clot phenotype in women with endometriosis before and after ovarian stimulation? DESIGN: Prospective study including 73 infertile women in two age-matched groups: (i) with confirmed endome…

The endometrium lines the uterine cavity, enables implantation of the embryo, and provides an environment for its development and growth. Numerous methods, including microscopic and immunoenzymatic techniques, have been used to study the pr…

Breast cancer remains one of the most important health problems worldwide. The family of steroid receptors (SRs), which comprise estrogen (ER), progesterone (PR), androgen (AR), glucocorticoid (GR) and mineralocorticoid (MR) receptors, alon…

STUDY QUESTION: Does CO2 laser vaporization offer better results in treating endometrioma in terms of ovarian reserve preservation compared to traditional cystectomy? SUMMARY ANSWER: Assessing both antral follicle count (AFC) and serum ant…

INTRODUCTION: Endometriosis affects about 5-15% of women in the reproductive period. One of the most important complications of pelvic endometriosis is infertility. OBJECTIVE: The assessment of ovarian endometriosis therapy with the use of…

BACKGROUND: Endometriosis is a well-known cause of infertility, and the anti-Mullerian hormone (AMH) is an accepted biomarker of ovarian reserve and response to artificial reproductive technology procedures. The present study was a prospect…

INTRODUCTION: Endometriosis is defined as the appearance of ectopic endometrial cells outside the uterine cavity. Ectopic cells demonstrate functional similarity to eutopic cells, but structural and molecular differences are significant and…

Endometriosis is a chronic disease affecting mainly women of the reproductive age. Its most common manifestations include impaired fecundity, pelvic pain, and dyschezia. Laparoscopic removal of endometriotic foci remains to be the gold stan…