نتایج جستجو برای: testes morphometry

تعداد نتایج: 18398  

Journal: :Archives of disease in childhood 1991
D W Goh J M Hutson

There is a general consensus among surgeons and paediatricians that cryptorchidism should be detected and treated by the age of 5 years, if not earlier. In reality, incomplete descent is often detected well beyond the age of 5. The effectiveness of local screening was assessed by reviewing the screening history and subsequent management of boys treated for undescended testes between 1983 and 19...

Journal: :international journal of advanced biological and biomedical research 2014
nwoke kyrian uchenna konyefom godswill nweze ifedi izuchukwu charles

objective: in this study aimed at evaluating the antifertility effect of the methanolic extract of abelmoschus esculentus (okro) fruit using albino wistar rat. methods: fifty adult male rats weighing 200g to 300g were weighed and divided into five groups of five rats each. group1 served as the control and were given water and normal rat chaw while groups 2, 3, 4 and 5 served as the test groups ...

2017

Retractile testes [1] Prepubertal boys can have an exaggerated cremasteric reflex. The testis may retract out of the scrotum in the cold, on examination, on excitement or on physical activity. It is normal and will descend when relaxed and warm, or it can be manipulated back into the scrotum. Retractile testes do not need any treatment but do need close follow-up until puberty, as they can beco...

2007
Mala Rao Julia Wilkinson David C Benton

There is general consensus among surgeons and paediatricians that cryptorchidism should be detected and treated by the age of 5 years, if not earlier. In reality, incomplete descent is often detected weli beyond the age of 5. The effectiveness of local screening was assessed by reviewing the screening history and subsequent management of boys treated for undescended testes between 1983 and 1986...

Journal: :Magnetic resonance in medicine 2011
Wei Wang Nguyet M Nguyen Dmitriy A Yablonskiy Alexander L Sukstanskii Emir Osmanagic Jeffrey J Atkinson Mark S Conradi Jason C Woods

Quantitative measurement of lung microstructure is of great significance in assessment of pulmonary disease, particularly in the earliest stages. The technique for MRI-based 3He lung morphometry was previously developed and validated for human lungs, and was recently extended to ex vivo mouse lungs. The technique yields accurate, quantitative information about the microstructure and geometry of...

Journal: :Current Biology 1996
Edward E Schmidt

Numerous genes are expressed preferentially in spermatids, the haploid germ cells of the testis. Although some have defined, spermatid-specific roles, the expression and function of the products of most of these genes are not restricted to spermatids [1]. Examples include transcription factors that have defined functions elsewhere, kinases, metabolic enzymes, and so on. Recently, another group ...

Journal: :The Journal of General Physiology 1962
Margaret R. McDonald

A procedure is described for the purification of salmon testis deoxyribonuclease II by means of acid extraction, fractional precipitation with ammonium sulfate, heat denaturation of extraneous proteins, and ethanol fractionation. This process separates the deoxyribonuclease activity from that of ribonuclease, phosphatase, phosphodiesterase, and protease. Over 50 per cent of the activity is reta...

2012
Benjamin B. Parrott Alicia Hudson Regina Brady Cordula Schulz

Exploring adult stem cell dynamics in normal and disease states is crucial to both better understanding their in vivo role and better realizing their therapeutic potential. Here we address the division frequency of Germline Stem Cells (GSCs) in testes of Drosophila melanogaster. We show that GSC division frequency is under genetic control of the highly conserved Epidermal Growth Factor (EGF) si...

Journal: :Human reproduction 2011
Fariborz Izadyar Jadelind Wong Chad Maki Jason Pacchiarotti Thomas Ramos Kyle Howerton Constance Yuen Scott Greilach Hongyu H Zhao Michelle Chow Yung-Chiong Chow Jianyu Rao Jason Barritt Natan Bar-Chama Alan Copperman

BACKGROUND This study was conducted to identify and characterize repopulating spermatogonial stem cells (SSCs) in the adult human testes. METHODS Testes biopsies from obstructive azoospermic patients and normal segments of human testicular tissue were used. Flow cytometry, real-time PCR and immunohistochemical analysis were performed. Purified human spermatogonia were transplanted into busulf...

2016
Mohan Kumar Kariappa Vivek Harihar Ashwini Rajareddy Kothudum Vivekanand Kedarlingayya Hiremath

Cryptorchidism is a condition in which one or both testes have not passed down into the scrotal sac. It is categorized as true undescended testis in which testes are present in the normal path of descent, and as ectopic testis, in which testes are present at abnormal site. Common complications of cryptorchidism are testicular torsion, subfertility, inguinal hernia, and testicular cancer. Here w...

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