نتایج جستجو برای: kal1 gene

تعداد نتایج: 1141383  

2015
Sun-Jeong Shin Yeonah Sul Ja Hye Kim Ja Hyang Cho Gu-Hwan Kim Jae Hyun Kim Jin-Ho Choi Han-Wook Yoo

PURPOSE Isolated gonadotropin-releasing hormone (GnRH) deficiency (IGD) is classified as Kallmann syndrome (KS) with anosmia and normosmic idiopathic hypogonadotropic hypogonadism (nIHH). This study was undertaken to investigate the clinical, endocrinological, and molecular characteristics in Korean patients with KS and nIHH. METHODS Twenty-six patients from 25 unrelated families were include...

2015
Hao Xu Yonghua Niu Tao Wang Simin Liu Hua Xu Shaogang Wang Jihong Liu Zhangqun Ye

Kallmann syndrome (KS) is characterized by isolated hypogonadotropic hypogonadism (IHH) with anosmia and is sometimes associated with cleft lip/palate (CLP). In order to describe the clinical features, genetic etiology, and treatment outcome of KS males with CLP, we performed genetic screening for 15 known causal IHH genes (KAL1, FGFR1, NELF, FGF8, CHD7, WDR11, SEMA3A, KISS1R, KISS1, PROKR2, PR...

2013
Audrey Vizeneux Aude Hilfiger Jérôme Bouligand Monique Pouillot Sylvie Brailly-Tabard Anu Bashamboo Ken McElreavey Raja Brauner

BACKGROUND The majority of the patients reported with mutations in isolated hypogonadotropic hypogonadism (HH) are adults. We analysed the presentation and the plasma inhibin B and anti-müllerian hormone (AMH) concentrations during childhood and adolescence, and compared them to the genetic results. METHODS This was a retrospective, single-center study of 46 boys with HH. RESULTS Fourteen (...

Journal: :The New England journal of medicine 2011
Lisa M Caronia Cecilia Martin Corrine K Welt Gerasimos P Sykiotis Richard Quinton Apisadaporn Thambundit Magdalena Avbelj Sadhana Dhruvakumar Lacey Plummer Virginia A Hughes Stephanie B Seminara Paul A Boepple Yisrael Sidis William F Crowley Kathryn A Martin Janet E Hall Nelly Pitteloud

BACKGROUND Functional hypothalamic amenorrhea is a reversible form of gonadotropin-releasing hormone (GnRH) deficiency commonly triggered by stressors such as excessive exercise, nutritional deficits, or psychological distress. Women vary in their susceptibility to inhibition of the reproductive axis by such stressors, but it is unknown whether this variability reflects a genetic predisposition...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2006
Nelly Pitteloud James S Acierno Astrid Meysing Anna V Eliseenkova Jinghong Ma Omar A Ibrahimi Daniel L Metzger Frances J Hayes Andrew A Dwyer Virginia A Hughes Maria Yialamas Janet E Hall Ellen Grant Moosa Mohammadi William F Crowley

Mutations in KAL1 and FGFR1 cause Kallmann syndrome (KS), whereas mutations in the GNRHR and GPR54 genes cause idiopathic hypogonadotropic hypogonadism with normal olfaction (nIHH). Mixed pedigrees containing both KS and nIHH have also been described; however, the genetic cause of these rare cases is unknown. We examined the FGFR1 gene in seven nIHH subjects who either belonged to a mixed pedig...

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