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BACKGROUND Clomiphene citrate (CC) is most commonly used as a first-line treatment of infertility. However, a disturbance of endometrial growth by the adverse effects of the CC has been recognized. Since a thin endometrium is recognized as a critical factor of implantation failure, preventing CC-induced thinning of the endometrium is important. This study was undertaken to investigate whether t...

Background Endometriosis is a common gynecological disease characterized by the presence of endometrial tissue outside the uterine cavity. This disease affects approximately 10% of women in reproductive age and is associated with pelvic pain, dysmenorrhea and infertility. The theory of involvement of stem cells is a considered new hypothesis in etiology of endometriosis.The aim of this study wa...

Placental protein 14 (PP14) is a glycoprotein which is secreted by secretory phase endometrium and decidua in women. Despite the suggestion that PP14 is involved in the process of endometrial maturation for blastocyst implantation, our understanding in this regard is poor. In the present study, the concentrations and distribution patterns of immunodetectable PP14 in the endometrium during proli...

We investigated the distribution of endometrial lymphatic vessels and expression of forkhead box C2 (FOXC2) in normal endometrium during menstrual cycle and in endometrial adenocarcinoma. Full-thickness uterine samples and endometrial adenocarcinoma samples were collected for immunohistochemical analysis using D2-40 and FOXC2 mouse monoclonal antibodies. The lymphatic vessel density (LVD) of th...

background: the vegf is essential in the process of tissue remodeling and angiogenesis. limited data is available on the expression and regulation of vegf and its receptors in the human endometrium. the aim of this study was evaluation of expression patterns of vegf and flk-1 in human endometrium during the menstrual cycle. methods: sixty paraffin-embedded blocks of endometrial tissues from the...

Functional PRL receptors are expressed in the human endometrium during the secretory phase of the menstrual cycle in which PRL stimulates tyrosine phosphorylation of Janus kinase 2 and STAT (signal transducer and activator of transcription) 1 and 5. In this study, we investigated the effect of PRL on the MAPK/ERK pathway in the human endometrium. Human endometrial tissue was collected during th...

background: endometrial remodeling occurs during each menstrual cycle in women. reports have shown that, in a variety of cell types, processes such as proliferation, signaling complex formation and extra cellular matrix remodeling require a cytoplasmic tyrosine kinase, focal adhesion kinase (fak). the present study has focused on the expression pattern of fak in human endometrium during the men...

OBJECTIVE The appropriate interaction between a blastocyst and the endometrium is essential for successful implantation. Numerous factors, including hormone receptors (progesterone receptor), cytokines [leukemia inhibitory factors (LIF)], and adherence molecules such as E-cadherin are involved in the cross-talk that occurs between the embryo and endometrium. Studies show that a lack of these ge...