Results 21 to 30 of about 17,684 (208)

Long-Term Wi-Fi Exposure From Pre-Pubertal to Adult Age on the Spermatogonia Proliferation and Protective Effects of Edible Bird’s Nest Supplementation

Frontiers in Physiology, 2022
Children are vulnerable to the radiofrequency radiation (RFR) emitted by Wi-Fi devices. Nevertheless, the severity of the Wi-Fi effect on their reproductive development has been sparsely available.
Farah Hanan Fathihah Jaffar, Khairul Osman, Chua Kien Hui, Aini Farzana Zulkefli, Siti Fatimah Ibrahim   +4 more
doaj   +1 more source

Retinoic Acid Receptors Control Spermatogonia Cell-Fate and Induce Expression of the SALL4A Transcription Factor. [PDF]

PLoS Genetics, 2015
All-trans retinoic acid (ATRA) is instrumental to male germ cell differentiation, but its mechanism of action remains elusive. To address this question, we have analyzed the phenotypes of mice lacking, in spermatogonia, all rexinoid receptors (RXRA, RXRB
Aurore Gely-Pernot, Mathilde Raverdeau, Marius Teletin, Nadège Vernet, Betty Féret, Muriel Klopfenstein, Christine Dennefeld, Irwin Davidson, Gérard Benoit, Manuel Mark, Norbert B Ghyselinck   +10 more
doaj   +1 more source

CG6015 controls spermatogonia transit-amplifying divisions by epidermal growth factor receptor signaling in Drosophila testes

Cell Death and Disease, 2021
Spermatogonia transit-amplifying (TA) divisions are crucial for the differentiation of germline stem cell daughters. However, the underlying mechanism is largely unknown.
Jun Yu, Qianwen Zheng, Zhiran Li, Yunhao Wu, Yangbo Fu, Xiaolong Wu, Dengfeng Lin, Cong Shen, Bo Zheng, Fei Sun   +9 more
doaj   +1 more source

Roles of Spermatogonial Stem Cells in Spermatogenesis and Fertility Restoration

Frontiers in Endocrinology, 2022
Spermatogonial stem cells (SSCs) are a group of adult stem cells in the testis that serve as the foundation of continuous spermatogenesis and male fertility.
Lei Diao, Paul J. Turek, Constance M. John, Fang Fang, Renee A. Reijo Pera, Renee A. Reijo Pera   +5 more
doaj   +1 more source

Histological Comparison of the Edible Water Frog (Pelophylax ridibundus Pallas, 1771) Gonads Before and After Reproduction

Turkish Journal of Agriculture: Food Science and Technology, 2021
In this study, testicular and ovarian structures of economically important edible Pelophylax ridibundus (Pallas, 1771) were histologically examined before and after reproduction in male and female individuals. Fourty eight (24 ♀, 24 ♂) adult frogs were
Ahmet Alkaya, Hülya Şereflişan
doaj   +1 more source

Mammalian germ cell migration during development, growth, and homeostasis

Reproductive Medicine and Biology, 2019
Background Germ cells represent one of the typical cell types that moves over a long period of time and large distance within the animal body. To continue its life cycle, germ cells must migrate to spatially distinct locations for proper development ...
Mizuho Kanamori, Kenta Oikawa, Kentaro Tanemura, Kenshiro Hara   +3 more
doaj   +1 more source

Follicle-Stimulating Hormone Regulates igfbp Gene Expression Directly or via Downstream Effectors to Modulate Igf3 Effects on Zebrafish Spermatogenesis

Frontiers in Endocrinology, 2017
Previous work showed that pharmacological inactivation of Igf-binding proteins (Igfbps), modulators of Igf activity, resulted in an excessive differentiation of type A undifferentiated (Aund) spermatogonia in zebrafish testis in tissue culture when Fsh ...
Diego Safian, Henk J. G. van der Kant, Diego Crespo, Jan Bogerd, Rüdiger W. Schulz, Rüdiger W. Schulz   +5 more
doaj   +1 more source

The effect of insulin-like growth factor-1 on the proliferation of goat spermatogonial stem cells (SSCs) in vitro [PDF]

مجله علوم پزشکی فیض (پیوسته), 2023
Background: This study aimed to the effect of insulin-like growth factor-1 on the proliferation of goat spermatogonial stem cells (SSCs) in vitro. Materials and Methods: The testicles of immature goats were obtained from slaughterhouse.
Milad Torabi, Peyman Rahimi-Feyli, Aliasghar Moghaddam   +2 more
doaj  

Somatic ERK activation during transit amplification is essential for maintaining the synchrony of germline divisions in Drosophila testis [PDF]

Open Biology, 2018
Transit amplification (TA) of progenitor cells maintains tissue homeostasis by balancing proliferation and differentiation. In Drosophila testis, the germline proliferation is tightly regulated by factors present in both the germline and the neighbouring
Samir Gupta, Bhavana Varshney, Shambhabi Chatterjee, Krishanu Ray   +3 more
doaj   +1 more source

Spermatogenesis and spermiogenisis in the testes of local Iraqi breed cat (Felis catus)

The Iraqi Journal of Veterinary Medicine, 2012
The seminiferous epithelium of the testes of cat consists of two groups of cells; Spermatogenic cells and Sertoli cells. The interstitial areas are filled with Leydic cells, blood and lymph vessels, and connective tissue.
AL-Samarrae N. S.
doaj   +1 more source