نتایج جستجو برای: Ovarian Insufficiency

تعداد نتایج: 183069  

Achermann JC Bashamboo A, Brauner R Laurenco D Lin L McElreavey K

Background: The genetic causes of nonsyndromic ovarian insufficiency are largely unknown. A nuclear receptor, NR5A1 (also called steroidogenic factor 1), is a key transcriptional regulator of genes involved in the hypothalamic–pituitary–steroidogenic axis. Mutation of NR5A1 causes 46,XY disorders of sex development, with or without adrenal failure, but growing experimental evidence from studies...

Purpose: Several causes for primary ovarian insufficiency have been described, including iatrogenic and environmental factor, viral infections, chronic disease as well as genetic alterations. Given the large number of genes described in the literature so far, the aim of this review was to collect all the genetic mutations associated with non-syndromic primary ovarian insufficiency. Methods: All...

Journal: :international journal of reproductive biomedicine 0
mahbod ebrahimi firouzeh akbari asbagh

premature ovarian failure (pof) is a heterogeneous syndrome with several causative factors. autoimmune mechanisms are involved in pathogenesis of 4-30 % of pof cases. the present review focuses on the role of autoimmunity in the pathophysiology of pof. the evidences for an autoimmune etiology are: demonstration of ovarian autoantibodies, the presence of lymphocytic oophoritis, and association w...

Journal: :journal of family and reproductive health 0
gülşah ilhan department of obstetrics and gynecology, division of reproductive endocrinology and infertility, suleymaniye research and education hospital, istanbul, turkey fatma ferda verit atmaca department of obstetrics and gynecology, division of reproductive endocrinology and infertility, suleymaniye research and education hospital, istanbul, turkey esra altan department of obstetrics and gynecology, division of reproductive endocrinology and infertility, suleymaniye research and education hospital, istanbul, turkey ali galip zebitay department of obstetrics and gynecology, division of reproductive endocrinology and infertility, suleymaniye research and education hospital, istanbul, turkey hamdullah sozen department of obstetrics and gynecology, division of reproductive endocrinology and infertility, suleymaniye research and education hospital, istanbul, turkey hurkan akyol department of obstetrics and gynecology, division of reproductive endocrinology and infertility, suleymaniye research and education hospital, istanbul, turkey

objective: to evaluate whether systemic inflammatory markers (neutrophil to lymphocyte ratio (nlr), platelet to lymphocyte ratio (plr) and red blood cell distribution width (rdw) to platelet ratio (rpr)) can be used as reliable markers for the diagnosis of premature ovarian insufficiency (poi) and to determine if there is a relationship between these markers and follicle stimulating hormone (fs...

2014
Seido Takae Kazuhiro Kawamura Yorino Sato Chie Nishijima Nobuhito Yoshioka Yodo Sugishita Yuki Horage Mamoru Tanaka Bunpei Ishizuka Nao Suzuki

The primary objectives of the present study are to determine the period of onset of ovarian insufficiency after surgery and to confirm potential risk factors for ovarian insufficiency after surgery for the removal of benign ovarian cysts. Data were obtained from 75 patients who underwent surgery for benign ovarian cysts prior to the onset of ovarian insufficiency. Our analysis included 835 ovar...

Journal: :The New England journal of medicine 2009
Diana Lourenço Raja Brauner Lin Lin Arantzazu De Perdigo Georges Weryha Mihaela Muresan Radia Boudjenah Gil Guerra-Junior Andréa T Maciel-Guerra John C Achermann Ken McElreavey Anu Bashamboo

BACKGROUND The genetic causes of nonsyndromic ovarian insufficiency are largely unknown. A nuclear receptor, NR5A1 (also called steroidogenic factor 1), is a key transcriptional regulator of genes involved in the hypothalamic-pituitary-steroidogenic axis. Mutation of NR5A1 causes 46,XY disorders of sex development, with or without adrenal failure, but growing experimental evidence from studies ...

2016
Seonghye Gweon Jisun Lee Suna Hwang Kyoung Joo Hwang Miran Kim

The combination of Müllerian agenesis with inguinal ovaries accompanied by primary ovarian insufficiency is extremely rare. A 21-year-old Korean woman was referred to our center with primary amenorrhea. The patient was diagnosed with Müllerian agenesis with inguinal ovaries. Her hormonal profile showed hypergonadotrophic hypogonadism suggesting primary ovarian insufficiency. We performed laparo...

2016
Elif Ağaçayak Neval Yaman Görük Hakan Küsen Senem Yaman Tunç Serdar Başaranoğlu Mehmet Sait İçen Ahmet Yıldızbakan Hatice Yüksel Sevgi Kalkanlı Talip Gül

OBJECTIVE The aim of this study was to elucidate the etiology and treatment of primary ovarian insufficiency, which is of unknown cause in 95% of the cases. MATERIALS AND METHODS Thirty patients aged 18-40 years who presented to Dicle University Faculty of Medicine Clinic of Obstetrics and Gynecology between June 2012 and January 2014 and were diagnosed as having primary ovarian insufficiency...

2017
Denise Maria Christofolini Emerson Barchi Cordts Fernando Santos-Pinheiro Erika Azuma Kayaki Mayla Cristina Fernandes Dornas Monise de Castro Santos Bianca Bianco Caio Parente Barbosa

OBJECTIVE To verify the incidence of the G679A mutation in exon 2 of the gene inhibin alpha (INHA), in women with secondary amenorrhea and diagnosis of premature ovarian insufficiency, and in controls. METHODS A 5mL sample of peripheral blood was collected from all study participants in an EDTA tube and was used for DNA extraction. For the patient group, 5mL of blood were also collected in a ...

Journal: :The Journal of clinical endocrinology and metabolism 2009
Samantha Butts Harold Riethman Sarah Ratcliffe Alka Shaunik Christos Coutifaris Kurt Barnhart

BACKGROUND Occult ovarian insufficiency is associated with infertility, impaired response to ovarian stimulation, and reduced live birth rates in women treated with assisted reproductive technologies. Although a decline in ovarian follicle number is expected with age, the proximate causes of occult ovarian insufficiency in young women remain poorly understood. Abnormalities in telomere length a...

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