نتایج جستجو برای: premature ovarian failure pof

تعداد نتایج: 505415  

Journal: :Menopause 2005
Hridesh Dixit Lakshmi K Rao Venkata Padmalatha Murthy Kanakavalli Mamatha Deenadayal Nalini Gupta Baidyanath Chakravarty Lalji Singh

OBJECTIVE To establish the risk associated with mutations in the coding region of GDF9 gene in Indian women with ovarian failure. DESIGN This case-control study was designed for mutational analysis of the GDF9 coding region in a cohort of women with premature ovarian failure (n = 127), primary amenorrhea (n = 58), and secondary amenorrhea (n = 10) compared with controls (n = 220). RESULTS T...

Journal: :Molecular medicine reports 2015
Xi Chen Mingxuan Xie Da Liu Ke Shi

Premature ovarian failure (POF), an ovarian disorder of multifactorial origin, is defined as the occurrence of amenorrhea, hypergonadotropism and hypoestrogenism in females <40 years old. Apoptosis of ovarian granulosa cells is important in POF and understanding the regulatory mechanism underlying ovarian granulosa cell apoptosis may be beneficial for the management of POF. Increasing evidence ...

Journal: :Human reproduction 2007
G Méduri N Massin J Guibourdenche A Bachelot O Fiori F Kuttenn M Misrahi P Touraine

BACKGROUND Premature ovarian failure (POF) is generally irreversible. However, developing follicles up to the antral stage are reported in POF and anti-Müllerian hormone (AMH) might be a good indicator of follicular presence. This study analysed serum AMH, ovarian histology and AMH immunoexpression in POF patients. METHODS A cross-sectional study of 48 POF patients in an Endocrinology Departm...

2012
Manoj Kumar Dhananjay Pathak Sundararajan Venkatesh Alka Kriplani A.C. Ammini Rima Dada

BACKGROUND & OBJECTIVES Premature ovarian failure (POF) is defined as the cessation of ovarian function under the age of 40 yr and is characterized by amenorrhoea, hypoestrogenism and elevated serum gonadotrophin levels. The cause of POF remains undetermined in majority of the cases. This study was aimed to investigate the type and frequency of cytogenetic abnormalities in patients with idiopat...

Journal: :Human molecular genetics 2012
Yingying Qin Han Zhao Jianfeng Xu Yongyong Shi Zhiqiang Li Jie Qiao Jiayin Liu Chunrong Qin Chune Ren Jie Li Shiling Chen Yunxia Cao Joe Leigh Simpson Zi-Jiang Chen

Premature ovarian failure (POF) is a complex heritable disorder known to be caused by chromosomal abnormalities and to date a limited number of known mutations, often autosomal. We sought to identify additional genetic loci associated with POF by performing the first large-scale genome-wide association study (GWAS). GWAS, using Affymetrix SNP 6.0 chip, was conducted in an initial discovery set ...

2016
Te Liu Suwei Wang Qiong Li Yongyi Huang Chuan Chen Jin Zheng

Premature ovarian failure (POF) refers to the presence of ovarian atrophic permanent amenorrhea in women under the age of 40. The pathogenesis of POF remains to be fully elucidated. Telocytes are a group of specialized cells with a small cell volume and very long cytoplasmic prolongations with dichotomous branching. Previous studies have indicated that telocytes function to support the trachea ...

Journal: :Asia-Oceania journal of obstetrics and gynaecology 1985
S Fujii S Ikeda T Tachizaki A Kagiya Y Saito

A case of a patient with premature ovarian failure (POF) is discussed. Ovulation failed to occur for 5 years by gonadotropin-releasing hormone agonist (GnRHa) and human menopausal gonadotropin (hMG) treatment following estrogen-progesterone replacement therapy. After laparoscopic ovarian biopsy, ovulation was successfully induced by hMG, although gonadotropins were not suppressed enough, and th...

2016
TE LIU QIONG LI SUWEI WANG CHUAN CHEN JIN ZHENG

Premature ovarian failure (POF) is a common cause of female infertility, for which there are currently no ideal treatments or medications. Furthermore, apoptosis of ovarian granulosa cells (OGCs) is an important mechanism underlying the decline in ovarian reserve and function. In the present study, several cellular growth factors and hormones were used to induce the differentiation of human ind...

Journal: :Journal of women's health 2010
Jae Jeong Yang Lisa Y Cho Yun Jeong Lim Kwang-Pil Ko Kun-Sei Lee Hyeongsu Kim Sung Vin Yim Soung Hoon Chang Sue K Park

BACKGROUND The aim of this study was to investigate the role of the estrogen receptor 1 (ESR1) genetic polymorphisms for early menopause that was classified as premature ovarian failure (POF) and early menopause (EM) and to examine whether the associations of ESR1 genetic variants are different for POF and EM. METHODS We selected 100 POF cases and matched 100 EM cases and 200 normal menopause...

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