نتایج جستجو برای: germinal epithelium

تعداد نتایج: 53425  

Journal: :Carnets 2016

Journal: :international journal of reproductive biomedicine 0
ozra nasrolahi fereshteh khaneshi fatemeh rahmani mazdak razi

background: the global prevalence of diabetes mellitus is on rise. diabetes-induced oxidative stress has been known to affect liver, pancreas, kidney and reproductive organs pathologically. honey is a natural product of bee with antioxidant properties. objective: current study aimed to analyze the protective effects of metformin (mf) alone and mf+ natural honey co-administration on diabetes-ind...

Journal: :Folia histochemica et cytobiologica 2006
Anna Szczerba Anna Jankowska Mirosław Andrusiewicz Jerzy B Warchoł

The research on the expression and mutations of DAZ and its homologues in human and other mammals suggests that protein products of these genes can mainly affect development of germinal cells. The aim of the present study was to analyze the expression of the DAZ gene in seminiferous tubules of six men with spermatogenic disorders (hypospermatogenesis and spermatogenic arrest). The results based...

Journal: :Zoological science 2010
Katsueki Ogiwara Takashi Ikeda Takayuki Takahashi

We sought to establish a new in vitro ovulation model using the whole ovaries of the medaka. Ovaries of the fish, which had been acclimated to the usual reproductive conditions (26 degrees C, 14 h light/10 h dark) and which had then been kept at least one day at 30 degrees C, were isolated 2 h before the expected in vivo ovulation time. When the ovaries were cultured in 90% medium 199 solution ...

2016
Julia Miriam Weiss Marieke Robinet Revital Aricha Perrine Cufi Bérengère Villeret Frida Lantner Idit Shachar Sara Fuchs Miriam C. Souroujon Sonia Berrih-Aknin Rozen Le Panse

Abnormal overexpression of CXCL13 is observed in many inflamed tissues and in particular in autoimmune diseases. Myasthenia gravis (MG) is a neuromuscular disease mainly mediated by anti-acetylcholine receptor autoantibodies. Thymic hyperplasia characterized by ectopic germinal centers (GCs) is a common feature in MG and is correlated with high levels of anti-AChR antibodies. We previously show...

Journal: :iranian journal of basic medical sciences 0
mehran dorostghoal department of biology, faculty of sciences, shahid chamran university of ahwaz, ahwaz, adel zardkaf department of biology, faculty of sciences, shahid chamran university of ahwaz, ahwaz, abdolrahaman dezfoolian department of anatomical sciences, faculty of medicine, jondishapour medical sciences university of ahwaz, ahwaz, iran

objective(s) in recent years concerns have been raised regarding the incidence of male reproductive disorders from exposure to endocrine disruptors. so, chronic effects of di(2-ethylhexyl)phthalate were studied on histological and stereological structure of testis in adult wistar rats. materials and methods thirty two adult wistar rats were randomly divided in four equal experiment groups; oil ...

Journal: :physiology and pharmacology 0
parva nasimi department of biology, fars science and research branch, islamic azad university, fars, iran mohammad reza tabandeh department of biochemistry and molecular biology, faculty of veterinary medicine, shahid chamran university of ahvaz, ahvaz, iran akbar vahdati department of biology, fars science and research branch, islamic azad university, fars, iran saeed khatamsaz department of biology, kazerun branch, islamic azad university, kazerun, iran

introduction: busulfan as a chemotherapeutic agent causes testicular germinal epithelium depletion and cytotoxicity in germ cells. the aim of this study was to assess antioxidant status, reactive oxygen species (ros) generation and apoptosis-related genetic markers of adult male mouse sperm following busulfan treatment. materials and methods: forty adult nmri mice (30 ± 5 g) were divided into t...

Journal: :iranian journal of veterinary research 2015
s. gholami m. ansari-lari l. khalili

methyl tertiary-butyl ether (mtbe) is used to reduce carbon monoxide and ozone in urban air and to boost fuel octane. there is a lack of knowledge in the literature about the histomorphometric changes of the testis following exposure to mtbe. therefore, this experimental study was performed to determine the effect of oral exposure to mtbe on histologic and histomorphometric changes of testis in...

2015
Arantxa Pérez-García Pablo Pérez-Durán Thomas Wossning Isora V Sernandez Sonia M Mur Marta Cañamero Francisco X Real Almudena R Ramiro

Activation-induced deaminase (AID) initiates secondary antibody diversification in germinal center B cells, giving rise to higher affinity antibodies through somatic hypermutation (SHM) or to isotype-switched antibodies through class switch recombination (CSR). SHM and CSR are triggered by AID-mediated deamination of cytosines in immunoglobulin genes. Importantly, AID activity in B cells is not...

2011
Miriam Pérez-Crespo Eva Pericuesta Serafín Pérez-Cerezales Maria I Arenas Maria VT Lobo Juan J Díaz-Gil Alfonso Gutierrez-Adan

BACKGROUND Some adult stem cells persist in adult tissue; however, we do not know how to stimulate stem cells in adults to heal injuries. Liver growth factor (LGF) is a biliprotein with hepatic mitogen activity. Its concentration increases markedly in the presence of any type of liver injury, and it shows in vivo therapeutic biological activity at extrahepatic sites. METHODS We have analyzed ...

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