Results 111 to 120 of about 59,910 (195)

STUDY OF THE EFFECTS OF CIMETIDINE UPON RAT TESTIS

open access: yesPakistan Armed Forces Medical Journal, 2018
cimetidine on germinal epithelium of seminiferous tubules of testis in adult albino rats was studied.  Cimetidine in high doses produces reduction in testicular weight and size, increase in tubular count per low power field and decrease in diameter and ...
Qamar Hamid, Muhammad Yunus Khan
doaj   +2 more sources

Morphogenesis of the bovine rete testis: the intratesticular rete and its connection to the seminiferous tubules

open access: yes, 2000
The development of the intragonadal rete testis and the establishment of the connection between seminiferous and straight testicular tubules was studied using ultrastructural and histochemical methods in 60 bovine embryos and fetuses ranging from day 39 ...
Wrobel, Karl-Heinz
core   +1 more source

The Impact of Common Medications on Male Fertility: An Updated Systematic Review

open access: yesAndrology, EarlyView.
ABSTRACT Background Compared with those of cytotoxic treatments, the potential effects of common medications on the fertility of men trying to conceive currently or planning to conceive in the future are less well described. The use of common medications may modify the gonadotropic axis, spermatogenesis, and epididymal maturation or alter male ...
Lina Jebli   +7 more
wiley   +1 more source

Overexpression of PD-L1 causes germ cells to slough from mouse seminiferous tubules via the PD-L1/PD-L1 interaction. [PDF]

open access: yesJ Cell Mol Med, 2022
Fang L   +14 more
europepmc   +1 more source

Clonal arrangement of Lin28 positive spermatogonia in the seminiferous tubules.

open access: yes, 2016
Whole mount staining of seminiferous tubules was performed to find out the size of Lin28 positive spermatogonia subpopulations. Lin28 positive cells were spermatogonia As, (blue arrow head) and Apr (yellow arrow head).
Heejun Jung (637709)   +2 more
core   +1 more source

Pubertal Dynamics of Sertoli and Leydig Cell Dysfunction in Klinefelter Syndrome

open access: yesClinical Endocrinology, EarlyView.
ABSTRACT Context Klinefelter syndrome (KS), defined by a 47, XXY karyotype, is commonly associated with progressive testicular failure. The precise timing of Sertoli and Leydig cell dysfunction during puberty remains unclear. Objective To determine the onset and progression of testicular insufficiency during puberty in KS, and to assess whether ...
Tredez Axelle   +9 more
wiley   +1 more source

Low retinoic acid levels mediate regionalization of the Sertoli valve in the terminal segment of mouse seminiferous tubules. [PDF]

open access: yesSci Rep, 2021
Imura-Kishi K   +9 more
europepmc   +1 more source

High Uric Acid Promotes Stem Leydig Cell Senescence by CCDC90B Mediates Mitochondrial Quality Control Imbalance

open access: yesCell Proliferation, EarlyView.
In hyperuricemia, uric acid inhibits CCDC90B ubiquitination degradation by binding to it. Excessive CCDC90B induces mitochondrial calcium overload, leading to mitochondrial quality control imbalance and ultimately resulting in SLC senescence and decreased testosterone levels.
Jiayu Huang   +8 more
wiley   +1 more source

Wt1 Is Required for the Regression of Müllerian Ducts in Male Mice by Inducing Wif1 and Osx Expression

open access: yesCell Proliferation, EarlyView.
Wt1 expressed in the MD mesenchyme promotes MD regression by inducing Wif1 and Osx transcription. In male mice, mesenchyme‐specific inactivation of Wt1 results in MD retention. ABSTRACT In mammals, Müllerian ducts (MDs) are the precursors of the female reproductive tract which regress in males during embryonic development.
Min Chen   +12 more
wiley   +1 more source

Testicular torsion in foals and stallions

open access: yesEquine Veterinary Education, EarlyView.
Summary Testicular torsion is a rare condition in horses characterised by a change in the position of the testis due to the testicular mesentery twisting around its own axis; it can occur both when the testis is still in the abdominal cavity and when it has descended into the scrotum.
C. P. Bartmann
wiley   +1 more source

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