Results 131 to 140 of about 24,097 (251)
Male Reproductive System - Prepubertal Seminiferous Tubules [PDF]
This higher power magnification of the prepubertal seminiferous tubules illustrates all the elements of the active testis. There is little division of germ cells (spermatogonia) and the organ is quiescent.
Gorski, Roger A.
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STUDY OF INTRA TESTICULAR REGULATIONS OF SPERMATOGENESIS DIFFERENTIATION BY EX-VIVO APPROACH [PDF]
Journal of Fundamental and Applied Sciences, 2010 The aim of this work is to study the regulation of intratesticular during spermatogenesis ex vivo. To highlight the progress of spermatogenesis ex vivo, we developed two cell culture systems of seminiferous tubules to study the role of local factors that
A. Adaika, B. Barenton , P. Durand
doaj
Successful transplantation of spermatogonial stem cells into the seminiferous tubules of busulfan-treated mice. [PDF]
Reprod Health, 2021 Azizi H, Niazi Tabar A, Skutella T.
europepmc +1 more source
Adenosine—A Regulator of Human Testicular Peritubular Cells
Andrology, EarlyView.ABSTRACT Background Extracellular purines, in particular ATP and adenosine, are regulators of physiological and pathophysiological processes throughout the human body. Roles in the human testis are emerging and include actions on peritubular cells, which form the wall of seminiferous tubules.
Lina Scholz +12 more
wiley +1 more source
Andrology, EarlyView.ABSTRACT Background Diabetes mellitus (DM) induces multifaceted cellular and structural alterations in the male reproductive system, thereby predisposing to infertility. Objectives This study aimed to evaluate the morphological, stereological, biochemical, histopathological, and ultrastructural changes induced by DM in testicular tissue, and to ...
Ayşenur Kaya Mutlu, Süleyman Kaplan
wiley +1 more source
STUDY OF THE EFFECTS OF CIMETIDINE UPON RAT TESTIS
Pakistan 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
Overexpression of PD-L1 causes germ cells to slough from mouse seminiferous tubules via the PD-L1/PD-L1 interaction. [PDF]
J Cell Mol Med, 2022 Fang L +14 more
europepmc +1 more source
Australian Veterinary Journal, EarlyView.Objective To report 45 cases of melioidosis in dogs and cats from northern Australia and analyse trends in epidemiology, clinical presentation, pathogenesis and response to treatment over a 27‐year period. Design Retrospective and prospective analysis of clinical records.
K Lee +6 more
wiley +1 more source
An Mn2+-stimulated neutral-sphingomyelinase in seminiferous tubules of immature wistar rats [PDF]
, 1999 Mammalian sphingomyelinases have been implicated in many important physiological and pathophysiological processes. The seminiferous tubules of immature (19 day-old) Wistar rats have at least three types of sphingomyelinases, a lysosomal one and two ...
Bernard, Elena Aida +3 more
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Pubertal Dynamics of Sertoli and Leydig Cell Dysfunction in Klinefelter Syndrome
Clinical 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