نتایج جستجو برای: endometrial tissue

تعداد نتایج: 939968  

لرکی, ثریا, ملکی, مسعود,

Background and objectives: Endometrial tissue growth and its activity outside the uterus cause endometriosis. It has been suggested that various epigenetic deviations play a major role in the pathogenesis of endometriosis. Steroidogenic factor 1 (SF-1; NR5A1) is an essential transcription factor for estrogen biosynthesis in endometrial cells. The expression of SF-1 in endometriosis and lack of ...

2012
Kaoru Miyazaki Tetsuo Maruyama Hirotaka Masuda Akiko Yamasaki Sayaka Uchida Hideyuki Oda Hiroshi Uchida Yasunori Yoshimura

BACKGROUND Endometrial stem/progenitor cells contribute to the cyclical regeneration of human endometrium throughout a woman's reproductive life. Although the candidate cell populations have been extensively studied, no consensus exists regarding which endometrial population represents the stem/progenitor cell fraction in terms of in vivo stem cell activity. We have previously reported that hum...

2013
Nisha Singh Bharti Singh

Objective: To evaluate the role of chromohysteroscopy in improving diagnostic accuracy of endometrial biopsy in cases of AUB. Design: Cross sectional interventional study. Materials and Methods: This study was conducted on 60 women with AUB in Dept. of Obst. & Gyne at King George Medical University, Lucknow over a period of one year. All cases underwent diagnostic hysteroscopy followed by chrom...

Journal: :Maturitas 2005
Sharon A O'Toole Elizabeth Dunn Brian L Sheppard Orla Sheils John J O'Leary Wolfgang Wuttke Dana Seidlova-Wuttke

OBJECTIVES The aim of this study was to examine the expression of oestrogen regulated genes in premenopausal and postmenopausal normal and malignant endometrial specimens. The molecular mechanisms and the role of these genes in endometrial carcinogenesis are poorly understood. METHODS Normal and malignant endometrial specimens were collected from patients undergoing hysterectomy. Real time Ta...

Journal: :International journal of clinical and experimental pathology 2015
Fengjuan Xu Su'an Sun Shilan Yan Hongling Guo Miao Dai Yincheng Teng

RIT1, (Ras-like without CAAX1), the founding member of a novel branch of the Ras subfamily, mediates a wide variety of cellular functions, including cell proliferation, survival, and differentiation, and it may play crucial oncogenic role in human cancer. The purpose of the current study was to characterize the expression pattern of RIT1 and assess the clinical significance of RIT1 expression i...

2012
Geping Yin Tongyu Zhu Juan Li Ming Chen Shujun Yang Xiaoli Zhao

BACKGROUND The purpose of the research is to study the histopathology and expression of survivin, estrogen and progesterone receptors (ER/PR) in the endometrium of patients with dysfunctional uterine bleeding (DUB) treated with radiofrequency endometrial ablation (REA). METHODS A total of 98 DUB patients were enrolled in this case-control study. Among them, 66 underwent REA treatment and 32 o...

Journal: :Anticancer research 2006
Megumi Yanokura Kouji Banno Nobuyuki Susumu Makiko Kawaguchi Yoshiko Kuwabara Kastumi Tsukazaki Daisuke Aoki

BACKGROUND p16 has been reported to disappear by hypermethylation in various cancers. However, the relationship between the frequency of hypermethylation of p16 and the mechanism of its inactivation has not been completely elucidated in endometrial cancer. MATERIALS AND METHODS Hypermethylation in the promoter region of the p16 gene and the expression of the p16 protein in 51 specimens, inclu...

Journal: :Human reproduction 2007
Ali Akoum C Lawson C Herrmann-Lavoie R Maheux

BACKGROUND The ectopic establishment and progression of endometrial tissue is dependent upon its interaction with and responsiveness to the stimuli present in its new environment. Immune cell-derived cytokines, such as interleukin 1 (IL1), may alone or in concert with estrogens enhance the capability of ectopic endometrial cells to implant and develop into the host tissue. The objective of this...

Fsis Shariati, P Afsharian P Ghoraeian R Aflatoonian S Mahdian

Background Endometriosis is a gynecological disease defined as the presence of endometrial tissue outside the uterine cavity, which caused by various factors. Recent evidences support the presence of endometrial stem cells and their possible involvement in endometriosis. Related studies mainly focus on stemness-related genes, and pluripotency markers may play a role in the etiology of endometri...

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