Results 91 to 100 of about 22,224 (299)

Concentration of glutathione and expression of glutathione peroxidases 1 and 4 in fresh sperm provide a forecast of the outcome of cryopreservation of human spermatozoa [PDF]

, 2004
Oxidative stress imbalance potentially leads to damage of the structure of the cell and macromolecules such as plasma membrane components, proteins, and DNA.
Garrido, N., Meseguer Anastasio, Manuel Francisco, Pellicer Martínez, Antonio, Remohí Giménez, José, Simón Vallés, Carlos   +4 more
core   +1 more source

Chronic Low‐Dose Unsymmetrical Dimethylhydrazine Exposure in Rats: Multiorgan Mechanisms and Biomarker Identification

Journal of Applied Toxicology, EarlyView.
ABSTRACT Unsymmetrical dimethylhydrazine (UDMH), a highly toxic rocket propellant with known multiorgan effects, requires urgent characterization of its chronic low‐dose toxicity. Using an integrated approach including exploratory transcriptomics (n = 3/group) and metabolomic (n = 4/group) approaches in male Sprague–Dawley rats exposed to high‐dose ...
Fuzhou Liu, Bing Liu, Keli Wang, Xiaoyu Wang, Zhen Sun, Xiaojuan Pan, Zengming Zhao   +6 more
wiley   +1 more source

Future prospects for the advancement of treatment of men with NOA: focus on gene editing, artificial sperm, stem cells, and use of imaging

Asian Journal of Andrology
Nonobstructive azoospermia (NOA) affects about 60% of men with azoospermia, representing a severe form of male infertility. The current approach to manage NOA primarily involves testicular sperm retrieval methods such as conventional testicular sperm ...
Akeem Babatunde Sikiru, Manh Nguyen Truong, Wael Zohdy   +2 more
doaj   +1 more source

Effects of 17α‐Ethinylestradiol on Development and Gonadal Differentiation in the Estuarine Mummichog, Fundulus heteroclitus

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT In fish, sex determination and gonadal development are controlled by various genetic and environmental factors. In this study, experiments were conducted on the estuarine mummichog (Fundulus heteroclitus) to investigate gonadal differentiation following exposure to the synthetic estrogen, 17α‐ethinylestradiol (EE2).
Ibrahim Chehade, Carly Sing‐Judge, Emily Corrigan, Andrea Lister, Glen Van Der Kraak, Deborah MacLatchy   +5 more
wiley   +1 more source

Molecular Investigations on Angiogenesis and Oxidative Stress in Roe Deer (Capreolus capreolus) Bucks' Testes Throughout the Reproductive Cycle

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT Animals with seasonal reproductive cycles, as the Roe deer (Capreolus capreolus), have developed mechanisms to synchronize reproduction with the environmental cycle in order to optimize reproductive success through melatonin. Angiogenesis and oxidative stress are key processes in spermatogenesis, contributing to testicular remodeling and ...
Ilaria Troisio, Domenico Ventrella, Bálint Lóránt Hausz, Mattia Cesauri, Niccolò Ian Vannetti, Maria Laura Bacci, Alberto Elmi, Augusta Zannoni   +7 more
wiley   +1 more source

Klinefelter's Syndrome in the Adult: Case Report and Review [PDF]

, 2011
Introdução: O diagnóstico de Síndrome de Klinefelter é habitualmente tardio (na idade adulta), devido à paucidade de sintomas e amplo espectro clínico e fenotípico, e é frequentemente feito na sequência do estudo de causas de infertilidade.
Barros, F, Forte, JP, Gameiro, C
core  

Effects of testosterone and high‐dose anabolic steroids on orthodontic‐induced bone remodeling and root resorption: An animal study

Journal of Periodontology, EarlyView.
Abstract Background This study investigates the impact of disruptions in testosterone levels on bone remodeling, root resorption, and periodontal ligament (PDL) during orthodontic tooth movement (OTM) in a pubertal male rat model. Methods Testosterone deficiency was induced through orchiectomy, and the anabolic‐androgenic steroid (AAS, testosterone ...
Caio Luiz Bitencourt Reis, Kelly Galisteu‐Luiz, Gabriela Leite Pedroso, Gustavo Lopes Puls, Leticia Cassaro, Bruno Boaventura Vieira, Fábio Lourenço Romano, Erika Calvano Küchler, Christian Kirschneck, Daniela Silva Barroso de Oliveira, Maria Bernadete Sasso Stuani, Mirian Aiko Nakane Matsumoto   +11 more
wiley   +1 more source

Regulatory mechanisms of reproduction in locusts and grasshoppers

New Plant Protection, EarlyView.
Regulatory networks composed of numerous coding and noncoding genes play crucial roles in the reproduction of locusts and grasshoppers. This review integrates mechanistic advances in reproductive regulation, highlighting environmentally adaptive pathways and providing prospective targets for eco‐friendly pesticides.
Jing He, Jiliang Wang, Xinran Wang
wiley   +1 more source

Survival of bovine spermatozoa in media containing a lipoprotein complex isolated from spermatozoa and other sources [PDF]

, 1960
This bulletin is a report of research under Project 81, 'Biochemical, Physical, and Physiological Aspects in Natural and Artificial Breeding'--P. [3].Includes bibliographical references (pages 15-16)
Mayer, D. T. (Dennis Thomas), 1901-2000, Miller, Lowell D., 1933-   +1 more
core  

Sperm retrieval outcomes of contralateral testis in men with nonobstructive azoospermia and unsuccessful unilateral microdissection testicular sperm extraction [PDF]

, 2023
Zhe Zhang, Yu Xi, Defeng Liu, Jiaming Mao, Haitao Zhang, Haocheng Lin, Wenhao Tang, Hui Jiang, Kai Hong, Lianming Zhao   +9 more
openalex   +1 more source