Jacques Donnez

PURPOSE: Baboons are commonly utilized as an animal model for studies of human reproduction. However, folliculogenesis in this species has not been fully documented. The aim of this study was to assess follicle morphometry and expression of…

Endometriosis is a disorder associated with a general inflammatory response in the peritoneal cavity. Oxidative stress is a potential factor involved in the pathophysiology of this disease, and reactive oxygen species (ROS) are implicated i…

Endometriosis is a chronic estrogen-dependent inflammatory disease of unclear etiology that affects 15-20% of women of reproductive age. Efforts are now focusing on understanding new mechanisms involved in its physiopathology, like novel ta…

Uterine fibroids (also known as leiomyomas or myomas) are the most common form of benign uterine tumors. Clinical presentations include abnormal bleeding, pelvic masses, pelvic pain, infertility, bulk symptoms and obstetric complications.Al…

OBJECTIVE: To determine the implications of collective cell migration in the invasion phenomenon observed in deep endometriotic lesions induced in a baboon model. DESIGN: Study of morphology and collective cell migration markers in invasiv…

OBJECTIVE: To evaluate the effects of endometriomas on the regulation of early follicular development. DESIGN: Histologic analysis of prospectively collected biopsy samples. SETTING: Research unit in a university hospital. PATIENT(S): Wo…

Endometriosis is one of the most frequently encountered benign diseases in gynecology. It is the cause of pelvic pain (dysmenorrhea, dyspareunia) and infertility in more than 35% of women of reproductive age [1]. Complete resolution of endo…

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 …

PURPOSE: To review 15 years of activities in ovarian tissue cryobanking from medical database files, including patient indications, histological evaluation and clinical characteristics. METHODS: Retrospective longitudinal analysis of data …

OBJECTIVE: To 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 (H…

1To whom correspondence should be addressed Angiogenesis is likely to be involved in the pathogenesis of endometriosis. According to the transplantation theory, when the exfoliated endometrium is attached to the periton-eal layer, the estab…

OBJECTIVE: To 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. DESIGN: Experimental animal study. SE…

Objective Detection of nerve fibers in endometrial biopsies was recently proposed as a noninvasive diagnostic tool for endometriosis. However, their occurrence in the functional layer of endometrium still remains controversial. Nerve fibers…

Sampson's menstrual reflux theory is commonly used to explain the origin of endometriotic lesions in women. However, their pathogenesis remains largely unknown. Validated research models need to be developed with the aim of studying mechani…

Deep endometriosis, defined as adenomyosis externa, mostly presents as a single nodule, larger than 1 cm in diameter, in the vesicouterine fold or close to the lower 20 cm of the bowel. When diagnosed, most nodules are no longer progressive…

OBJECTIVE: To establish an experimental model for the study of deep nodular endometriosis. DESIGN: Induction of nodular endometriosis in baboons by grafting different uterine specimens to the peritoneal cavity. SETTING: Research and unive…

Peritoneal endometriosis is a chronic inflammatory disease characterized by increased numbers of peritoneal macrophages and their secreted products. Inflammation plays a major role in pain and infertility associated with endometriosis, but …

To define the role of surgery in the treatment of endometriomas, we review the literature available via PubMed and cross-reference the published data. We analyze the arguments in favor of and against surgical treatment of endometriomas and …

INTRODUCTION: Current therapies for endometriosis cannot completely cure the disease, and patients present with high recurrence rates. Novel medical approaches are, therefore, needed. AREAS COVERED: In endometriosis, aromatase was long tho…

OBJECTIVE: To evaluate the adverse effects of endometriomas on ovarian reserve. DESIGN: Analysis of prospectively collected biopsy samples. SETTING: Gynecology research unit in a university hospital. PATIENT(S): Women younger than age 35…