Results 81 to 90 of about 84,845 (296)

Aspects of gametogenesis and radiation pathology in the onion fly, Hylemya antiqua (Meigen) : 1. Gametogenesis [PDF]

, 1976
In the scope of a genetic control research project gametogenesis of the onion fly, Hylemya antiqua (Meigen), is studied as a base for investigations on radiation histopathology of the gonads.Various cytological, histological, electronmicroscopical and ...
Theunissen, J.A.B.M.
core  

Role of histone methylation in paternal transmission of epigenetic information [PDF]

, 2010
During the development of multi-cellular organisms, one genome gives rise to multiple differentiated cell types. This is achieved by sequence specific transcription factors and different epigenetic mechanisms, which collaborate in reading the genetic ...
Brykczynska, Urszula
core   +1 more source

Morphophysiological dynamics of the proximal post‐testicular ducts in Crotalus durissus Linnaeus, 1758 (Squamata: Viperidae)

The Anatomical Record, EarlyView.
Abstract The organization and function of reptilian excurrent ducts remain poorly characterized, particularly in Neotropical snakes. We provide the first integrative morphological, histochemical, immunohistochemical, and ultrastructural analysis of the proximal post‐testicular ducts of Crotalus durissus across reproductive stages.
Flávia Cappuccio de Resende, Gustavo Caldeira Cotta, Clara d' Ávila Fonseca Paiva de Paula Freitas, Leonardo Carvalho, Heloísa Helena Marques Oliveira, Victória Gomes Carvalho Silva, Lívia de Fátima Moreira Silva, Luciana Maria Silva, Samyra Maria dos Santos Nassif Lacerda, Guilherme Mattos Jardim Costa   +9 more
wiley   +1 more source

Spermatogenesis

Spermatogenesis is an extraordinarily complex cellular reorganization producing distinctive elongated haploid gametes. Successful spermatogenesis is critical to reproduction and species survival, and sperm, and the genes expressed in them, evolve rapidly.
White-Cooper, Helen, Amoyel, Marc, Messer, Fiona   +2 more
core   +3 more sources

Ursolic Acid Alleviates Orchitis via Modulating Ferroptosis in Peritubular Myoid Cells of Testis

Animal Research and One Health, EarlyView.
Ursolic acid modulates key ferroptosis‐related pathways in the peritubular myoid cells of the testis in forest musk deer. ABSTRACT Chronic stress adversely affects reproductive health, increasing susceptibility to pathologies such as orchitis. Additionally, the maintenance of iron homeostasis is essential for preserving the function of the testicles ...
Yang Wang, Tianqi Jin, Zexin Chen, Ye Gong, Qimin Liu, Zifang Wu, Heran Cao, Yan Li, Yuyan Liu, Tianhao Yang, Zhihong Jiang, Wuzi Dong   +11 more
wiley   +1 more source

Single Cell Map of Human Azoospermia Testis Caused by Cyclophosphamide Chemotherapy

Scientific Data
Chemotherapeutic drugs will affect the process of spermatogenesis. However, most current studies on the effects of chemotherapeutic drugs on spermatogenesis are based on mouse models, with a shortage of human body evidence.
Jian Cao, Xueheng Zhao, Zailong Qin, Shanshan Lv, Lin Du, Zhizhong Liu, Liqing Fan, Hao Bo   +7 more
doaj   +1 more source

Genomic Structural Variations Provide Insights Into Litter Size and Teat Number Traits in Hu Sheep

Animal Research and One Health, EarlyView.
Here, we conducted whole genome sequencing on 300 Hu sheep with an average depth of 16.51X. Two candidate genes associated with litter size and teat number traits were identified, namely MAST2 and AFDN. ABSTRACT Litter size and the teat number are important economic indicators in sheep production.
Xin Xiang, Wei Dai, Jiqiang Liu, Zhengguang Wang   +3 more
wiley   +1 more source

The role of Musashi protein in spermatogenesis and male infertility

Fiyz̤, 2019
Background: Inactivation of transcription occurs during two phases of spermatogenesis. First, in spermatocytes entering the primary meiosis and the second in round and elongating spermatids.
Zohreh Talebi-Yazdabadi , Kianoush Dormiani , Mahboobeh Forouzanfar, Liana Lachinani , Marzieh Tavalaee , Mohammad Hossein Nasr- Esfahani   +5 more
doaj  

Histological Characterization and Comparative Transcriptomic Analysis of Gonads During Early Sex Differentiation in the Northern Snakehead (Channa argus)

Animal Research and One Health, EarlyView.
This study delineates the early sex differentiation timeline in the northern snakehead (Channa argus). These findings provide a foundation for future sex‐control breeding in this economically important species. ABSTRACT The northern snakehead (Channa argus) is an economically important aquaculture species in China.
Chaonan Sun, Donglei Sun, Haishen Wen, Xin Qi, Chao Li, Xiaoyan Zhang, Yun Li   +6 more
wiley   +1 more source

Building families—Implementing balanced sexual and reproductive health

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract One of the main initiatives of the World Health Organization (WHO) is the promotion of Sexual and Reproductive Health (SRH). Sexuality, infertility, and contraception are three interconnected pillars of SRH, each essential for achieving global equity in family planning and family building.
Peter Y. Liu, Edgar Mocanu, Linda Giudice, Marcos Horton, Meletios P. Nigdelis, Antti Perheentupa, Andrea Sansone, Giovanni Corona, Luca Gianaroli, Dimitrios G. Goulis   +9 more
wiley   +2 more sources