نتایج جستجو برای: Testicular Development

تعداد نتایج: 1434495  

حشمت مویری, ,

The development of testicular masses in male patients with congenital adrenal hyperplasia due to 21 hydroxylase deficiency has been recognized for many years. We present here the eighth and ninth reported patient with bilateral testicular tumors associated with 11 hydroxylase deficiency. They were two brothers aged 7.5 and 5 yr. who had bilateral testicular tumors and diagnosed because of signs...

Amir Amniattalab, Mazdak Razi

Background The current study aimed to evaluate the effects of phosalone (PLN) as an organophosphate (OP) compound on testicular tissue, hormonal alterations and embryo development in rats. MaterialsAndMethods In this experimental study, we divided 18 mature Wistar rats into three groups-control, control-sham and test (n=6 per group). Animals in the test group received one-fourth the lethal dose...

Behrooz Katoozian, Fereydoun Azizi, Hadi Nejati, Mahtalaat Nafarabadi, Majid Azadegan, Parvin Azartash,

779 primary and high school boys of East-Tehran were evaluated in 1984. The occurance of pubic hair and testicular development were investigated and rated according to Marshall and Tanner's clas- sification. The pubic hair begun to develop between 6.5 years and 15.1 years in all boys (mean= 9.28 ±- 1.02). In age group of 10 years 62.5%, 12 years 80%, 14 years 94.3% and 16 years 100% of the boys...

Journal: :international journal of fertility and sterility 0
amir amniattalab mazdak razi

background: the current study aimed to evaluate the effects of phosalone (pln) as an organophosphate (op) compound on testicular tissue, hormonal alterations and embryo development in rats. materials and methods: in this experimental study, we divided 18 mature wistar rats into three groups-control, control-sham and test (n=6 per group). animals in the test group received one-fourth the lethal ...

Journal: :Theriogenology 2011
J J Ford T H Wise

At the onset of puberty, seminiferous tubules rapidly increase in diameter, thereby occupying a greater proportion of the testis, resulting in a rapid increase in testicular size. The objective of the current studies was to evaluate ultrasonography for assessing testicular diameter, as a basis for ranking boars relative to their extent of pubertal development. In the initial study, prior to cas...

2014
Hendrik Borgmann Stefan Vallo Christian Ruf Anke Schmidt Walter Ferdinand Thon

Testicular neoplasms occur in more than 90% of cases, due to primary testicular germ cell tumors. Other entities are non germ cell tumors of the testis, testicular manifestation of lymphomas or metastases. International and interdisciplinary co-operation has led to the development of urological guidelines and to good therapeutic success for testicular neoplasms. The gold standard for treatment ...

2017
Pranav Patni Sujit Kumar Mohanty Rajender Singh

Testicular development is a very interesting aspect of male reproduction and fertility. The primordial germ cells migrate from yolk sac to the genital ridge along the wall of the hindgut and the dorsal mesentery to ultimately settle in the genital ridge that would give rise to testes. Sex-determining region of the Y chromosome (SRY) is the principal driver of testes development. Testes developm...

2013
Patrícia Aparecida Cardoso da LUZ Paulo Ramos da Silva SANTOS Cristiana ANDRIGHETTO André Mendes JORGE Antônio Chaves de ASSIS NETO

Buffalo are an economically important source for meat and milk production, especially in Brazil. However, important aspects of their biology remain unknown thus far. Herein, we describe the reproductive characteristics of male Murrah buffalo (Bubalus bubalis) raised under extensive management conditions by applying biometrics associated with testicular weight. We analyzed seven males, divided i...

2016
Yong Wang Yu Gan Zhengyu Tan Jun Zhou Riko Kitazawa Xianzhen Jiang Yuxin Tang Jianfu Yang

Human testis development-related gene 1 (TDRG1) is a recently identified gene that is expressed exclusively in the testes and promotes the development of testicular germ cell tumors. In this study, the role of TDRG1 in the development of testicular seminoma, which is the most common testicular germ cell tumor, was further investigated. Based on polymerase chain reaction, Western blotting, and i...

Journal: :Folia morphologica 2014
G K Paraskevas K Natsis Z Nitsa B Papaziogas P Kitsoulis

The aberrancies concerning the number, origin and course of the testicular arteries are found in an incidence of approximately 4.7-20% in the literature and are documented less frequently than the respective variations of the homonymous veins. In the current study, a very rare complex of testicular arteries' variations isdescribed, in which the occurrence of bilateral double testicular arteries...

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