نتایج جستجو برای: spermatogenesis index

تعداد نتایج: 404000  

Journal: :Jurnal Ruaya: Jurnal Penelitian dan Kajian Ilmu Perikanan dan Kelautan 2021

Penelitian ini bertujuan menganalisis fase spermatogenesis sidat hasil induksi kombinasi hormon 17α-metil testosteron (MT) dan anti dopamin (AD). Tiga perlakuan diatur sebagai berikut: AD 10 µg.kg–1 (A); AM 3 mg.L–1 (AM) larutan fisiologis NaCl 9 kontrol (F). Sidat (200±15 g) dikelompokkan menjadi tiga unit percobaan yang dipelihara dalam bak beton berkapasitas 3.400 liter berisi air sebanyak 2...

2014
Yi-Chen Lin John H. Richburg

TRAIL (TNFSF10/Apo2L) is a member of the tumor necrosis factor (TNF) superfamily of proteins and is expressed in human and rodent testis. Although the functional role of TRAIL in spermatogenesis is not known, TRAIL is recognized to induce apoptosis via binding to its cognate receptors; DR4 (TRAIL-R1/TNFRSF10A) and DR5 (TRAIL-R2/TNFRSF10B). Here, we utilize Trail gene-deficient (Trail-/-) mice t...

2003
Peter H. Vogt

Genetic lesions causing human male infertility are manifold. Besides gross chromosomal aneuploidies and rearrangements, microdeletions and single gene defects can interfere with male fertility. Male fertility is not only dependent on genes controlling the male germ line but also on genes of the networks functional for male gonad development and male somatic development, respectively. It is popu...

Journal: :Folia histochemica et cytobiologica 2015
Agnieszka Kolasa-Wolosiuk Kamila Misiakiewicz-Has Irena Baranowska-Bosiacka Izabela Gutowska Barbara Wiszniewska

INTRODUCTION The hormone-dependent events that occur throughout the first wave of spermatogenesis, such as the establishment of the number of Sertoli cells (SCs) and spermatogonial stem cells (SSCs) within the seminiferous cords and the setting up of the blood-testis barrier, are important for adult male fertility. Any changes in the T/DHT ratio can result in male subfertility or even infertili...

Journal: :Current pharmaceutical design 2004
Peter H Vogt

Genetic lesions causing human male infertility are manifold. Besides gross chromosomal aneuploidies and rearrangements, microdeletions and single gene defects can interfere with male fertility. Male fertility is not only dependent on genes controlling the male germ line but also on genes of the networks functional for male gonad development and male somatic development, respectively. It is popu...

2016
Barbara Laurinyecz Mária Péter Viktor Vedelek Attila L. Kovács Gábor Juhász Péter Maróy László Vígh Gábor Balogh Rita Sinka

Drosophila spermatogenesis is an ideal system to study the effects of changes in lipid composition, because spermatid elongation and individualization requires extensive membrane biosynthesis and remodelling. The bulk of transcriptional activity is completed with the entry of cysts into meiotic division, which makes post-meiotic stages of spermatogenesis very sensitive to even a small reduction...

Journal: :Reproduction 2005
Gunnar Wrobel Michael Primig

Recent large-scale transcriptional profiling experiments of mammalian spermatogenesis using rodent model systems and different types of microarrays have yielded insight into the expression program of male germ cells. These studies revealed that an astonishingly large number of loci are differentially expressed during spermatogenesis. Among them are several hundred transcripts that appear to be ...

Journal: :iranian journal of applied animal science 2015
v. hemayatkhah jahromi k. parivar m. forozanfar

cinnamon has many therapeutic effects, such as its impact the increase of sexual ability. this experiment was conducted to determine the effect of cinnamon extract on spermatogenesis and hormonal axis of pituitary gonad in mice. the animals used in this study are male adult mice (weighing about 30-34 g and 9-10 weeks old). cinnamon was purchased from one of the most valid shops in jahrom and th...

Journal: :international journal of reproductive biomedicine 0
parvaneh najafizadeh farzaneh dehghani mohammadreza panjeh shahin sommaye hamzei taj

background: olive ( olea europea ), from the oleaceae family, is known as a phytoestrogen plant compound, containing lignans and phenolic compounds. some studies have shown phytoestrogens to have spermatogenesis-decreasing effects. objective: the present study investigated the effects of a hydro-alcoholic extract of olive fruit on reproductive argons in male rats. materials and methods: the hyd...

2015
Minyan Li Rui Huang Xue Jiang Yuxi Chen Zhen Zhang Xiya Zhang Puping Liang Shaoquan Zhan Shanbo Cao Zhou Songyang Junjiu Huang Wei Yan

Mammalian spermatogenesis is a highly regulated multistage process of sperm generation. It is hard to uncover the real function of a testis specific gene in vitro since the in vitro model is not yet mature. With the development of the CRISPR/Cas9 (Clustered Regularly Interspaced Short Palindromic Repeats/CRISPR-associated 9) system, we can now rapidly generate knockout mouse models of testis sp...

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