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Endometriosis is classically described as the presence of both endometrial glandular and stromal cells outside the uterine cavity, mainly in the pelvis. The pathogenesis of this enigmatic disorder still remains controversial despite extensi…

It is believed that ovarian endometriosis may be generated by a celomic metaplastic process from existing epithelium in the ovary. However, no morphologic evidence of metaplastic process has been described. In this study, we intended to ide…

The elevation of the proinflammatory chemoattractant cytokine levels in ectopic and eutopic endometrium of endometriosis implies an inflammatory basis for this disease. The relationship between endothelial cells and leukocytes is likely to …

OBJECTIVE: Apoptosis is an important regulator of eutopic endometrial function. Endometriosis, the growth of endometrial tissue outside the uterus, could result from increased cellular proliferation or decreased apoptosis in response to app…

OBJECTIVE: To investigate the effects of danazol and leuprorelin acetate on CA-125 levels during treatment for endometriosis. PATIENTS AND METHODS: Fifty women with laparoscopically diagnosed and treated endometriosis, and 50 women without…

OBJECTIVE: To evaluate the effects of oxidative stress and antioxidants on proliferation of endometrial stromal cells. DESIGN: In vitro study. SETTING: Academic laboratory. PATIENT(S): Women, with and without endometriosis, of reproducti…

OBJECTIVE: To quantify levels of macrophage migration inhibitory factor (MIF) in the peritoneal fluid (PF) of women with endometriosis, and to correlate these levels with the extent of disease. DESIGN: Controlled clinical study. SETTING: …

A wealth of publications proposes that endometriosis and inflammation may have an unfavorable influence on fertility. A recent meta-analysis of assisted reproductive technologies demonstrated that, once confounding factors are controlled fo…

BACKGROUND: Although the etiology of endometriosis is not well understood, chemokines and their receptors are believed to play a role in its pathogenesis. Therefore, we aimed to investigate the expression and localization of interleukin-8 (…

OBJECTIVE: To evaluate the effect of interleukin-8 (IL-8) on endometrial stromal cell metalloproteinase (MMP) activity and invasiveness. DESIGN: Experimental laboratory study. SETTING: University medical center. PATIENT(S): Reproductive …

OBJECTIVE: To investigate whether conservative surgery on ovarian endometriomas before an IVF cycle improves fertility outcomes. DESIGN: Retrospective, matched case-control study. SETTING: Two academic IVF programs. PATIENT(S): One hundr…

Laparoscopic cystectomy of large endometriomas before an IVF cycle does not increase the implantation and pregnancy rate.

OBJECTIVE: Peritoneal fluid (PF) inflammatory factors may participate in the pathogenesis of endometriosis. The aim of this study was to investigate PF interleukin (IL)-18 levels in women with and without endometriosis. DESIGN: Controlled …

Apoptosis is a physiologic process that deletes unwanted cells without inducing an inflammatory reaction. Survival of endometriotic implants is associated with decreased apoptosis and an inflammatory environment. The most widely accepted th…

Endometriosis is a common gynecologic disorder characterized by the presence of endometrial tissue outside the uterine cavity. Although no single theory can explain all cases of endometriosis, the most commonly accepted theory is Sampson's …

PROBLEM: Accumulating data suggests that aberrant immune responses during retrograde menstruation may be involved in the development of endometriosis. METHOD OF STUDY: The role of immunology in the etiology of endometriosis is reviewed and…

BACKGROUND: Interleukin (IL)-15 is a novel cytokine with immunoregulatory and angiogenic properties. We compared IL-15 levels in the peritoneal fluid (PF) of women with and without endometriosis. METHODS: PF samples were obtained from 55 w…

PROBLEM: Pregnancy-associated plasma protein-A (PAPP-A) belongs to a group of glycoproteins isolated from extracts of human placenta. Healthy ovarian and uterine tissues are also known to express PAPP-A. We hypothesized that PAPP-A levels m…

BACKGROUND: The role of leptin in reproductive processes has received increasing attention. Because leptin has intrinsic angiogenic properties, may be induced by inflammatory cytokines and induces matrix metalloproteinases, we examined peri…

In the coming years, basic science research into the mechanisms of endometriosis development and persistence almost certainly will open new avenues for treatment. A wide armamentarium of medical therapies already exists, however. The effica…

Endometriosis is a common gynecologic disorder characterized by the presence of endometrial tissue outside the uterine cavity. Various theories have been put forth to explain the mechanisms for the development of this disease. Although no s…

A 36-year-old woman with a 20-year history of endometriosis-associated pelvic pain was a unique case from a total of 700 patients with endometriosis recently evaluated at Yale University. Her previous treatments included 11 surgical procedu…

OBJECTIVE: To evaluate soluble Fas ligand concentrations in serum and peritoneal fluid from women with endometriosis and from fertile controls without endometriosis, and to study levels of soluble Fas ligand in conditioned media of cultured…

Interaction between endometrial stromal cells and extracellular matrix (ECM) components has a crucial role in the development of endometriosis. Endometrial stromal cells attach to the mesothelial surface of peritoneum by means of integrins …