نتایج جستجو برای: azfc

تعداد نتایج: 269  

Journal: :The Journal of Urology 2021

You have accessJournal of UrologyInfertility: Epidemiology & Evaluation I (MP21)1 Sep 2021MP21-04 SUCCESSFUL SPERM RETRIEVAL FOR MEN WITH Y CHROMOSOME AZFC MICRODELETION I-Shen Huang, Wei-Jen Chen, and William J Huang HuangI-Shen More articles by this author , ChenWei-Jen Chen HuangWilliam View All Author Informationhttps://doi.org/10.1097/JU.0000000000002006.04AboutPDF ToolsAdd to favoritesDow...

Journal: : 2023

Mất đoạn AZF trên nhiễm sắc thể Y là nguyên nhân gây vô sinh quan trọng ở nam giới. Mối liên giữa mất với nồng độ hormone sản và các đặc điểm lâm sàng bệnh vấn đề cần được làm sáng tỏ. Mục tiêu: khảo sát Y, dục mối một số thiểu tinh tinh. Đối tượng phương pháp nghiên cứu: chúng tôi cứu 161 Kết quả: gặp 15 (chiếm 9,3%), trong đó AZFc hay nhất. Nồng FSH, LH testosterone trung bình lần lượt là: 16...

Journal: :American journal of human genetics 2005
Katherine L Nathanson Peter A Kanetsky Rachel Hawes David J Vaughn Richard Letrero Kathy Tucker Michael Friedlander Kelly-Anne Phillips David Hogg Michael A S Jewett Radka Lohynska Gedske Daugaard Stéphane Richard Agnés Chompret Catherine Bonaïti-Pellié Axel Heidenreich Edith Olah Lajos Geczi Istvan Bodrogi Wilma J Ormiston Peter A Daly J Wolter Oosterhuis Ad J M Gillis Leendert H J Looijenga Parry Guilford Sophie D Fosså Ketil Heimdal Sergei A Tjulandin Ludmila Liubchenko Hans Stoll Walter Weber Matthew Rudd Robert Huddart Gillian P Crockford David Forman D Timothy Oliver Lawrence Einhorn Barbara L Weber Joan Kramer Mary McMaster Mark H Greene Malcolm Pike Victoria Cortessis Chu Chen Stephen M Schwartz D Timothy Bishop Douglas F Easton Michael R Stratton Elizabeth A Rapley

Testicular germ cell tumor (TGCT) is the most common cancer in young men. Despite a considerable familial component to TGCT risk, no genetic change that confers increased risk has been substantiated to date. The human Y chromosome carries a number of genes specifically involved in male germ cell development, and deletion of the AZFc region at Yq11 is the most common known genetic cause of infer...

Background and Aim: The Y-chromosome azoospermic factor (AZF) regions consist of genes whose specific roles and functions in spermatogenesis and fertility have not been completely clarified. Hence, recognition of the association between AZF microdeletions and male infertility has suggestions for the diagnosis, treatment, and genetic counseling. The main objective of the present study was invest...

Chao F Rong-Rong H Ru-Lin D Rui-Xue W Rui-Zhi L Ya-Ping Y Yuan D

Background: To investigate the frequencies of AZF microdeletions and chromosomal abnormalities in infertile men from Northeastern China. Moreover, to compare the prevalence of these abnormalities with other countries and regions in the world. Materials and Methods: 305 infertile men were enrolled. A complete semen analysis and reproductive hormones were measured according to standard methods. M...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان 1389

کروموزوم y انسان یکی از کوچکترین کروموزوم های ژنوم است وکمترین شمار ژن را نسبت به هر کدام از کروموزوم های دیگر داراست و در انسان تنها 2 درصد از حجم ژنوم را در بر دارد. حدود 95 درصد توالی dna در این کروموزوم غیر نوترکیب است و تنها در ژنوم مردان وجود دارد این ناحیه به عنوان ناحیه ی "خاص مذکر" msy شناخته می شود. در قسمت یوکروماتیک این کروموزوم، سازمان بندی به صوری 8 توالی پالیندرومیکی است که تصور ...

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