Results 41 to 50 of about 489,854 (362)

Does air pollution exposure affect semen quality? Evidence from a systematic review and meta-analysis of 93,996 Chinese men

Frontiers in Public Health, 2023
BackgroundAir pollution may impair male fertility, but it remains controversial whether air pollution affects semen quality until now.ObjectivesWe undertake a meta-analysis to explore potential impacts of six pollutants exposure during the entire window (
Junjie Liu, Yanpeng Dai, Runqing Li, Jiayi Yuan, Quanxian Wang, Linkai Wang   +5 more
doaj   +1 more source

Small RNAs are trafficked from the epididymis to developing mammalian sperm

bioRxiv, 2017
RNAs present in mature mammalian sperm are delivered to the zygote at fertilization, where they have the potential to affect early development. The biogenesis of the small RNA payload of mature sperm is therefore of great interest, as it may be a target ...
Upasna Sharma, F. Sun, C. Conine, Brian Reichholf, Shweta Kukreja, Veronika A. Herzog, Stefan L Ameres, Oliver J. Rando   +7 more
semanticscholar   +1 more source

Phenotypic plasticity in sperm traits in scorpionflies (Mecoptera: Panorpidae): consequences of larval history and seasonality on sperm length and sperm transfer

, 2009
Vermeulen A, Engels S, Engqvist L, Sauer KP. Phenotypic plasticity in sperm traits in scorpionflies (Mecoptera: Panorpidae): consequences of larval history and seasonality on sperm length and sperm transfer. European Journal of Entomology.
Vermeulen, Andreas, Engqvist, Leif, Klaus Peter SAUER, Sauer, Klaus Peter, Leif ENGQVIST, Engqvist, Leif ; https://orcid.org/, Andreas VERMEULEN, Engels, Sierk, Sierk ENGELS   +8 more
core   +1 more source

Re-sperm collection with a short abstinence time: a strategy for successful cryopreservation in cryptozoospermia [PDF]

Journal of Men's Health
Background: Recent studies suggest that short-term abstinence may improve semen parameters; however, its impact on cryptozoospermia remains underexplored.
Wen-Rui Zhao, Bo Liu, Xue-Feng Luo, Jin-Yan Xu, Chen Luo, Yuan Liu, Yang Xian, Fu-Ping Li   +7 more
doaj   +1 more source

Male cancer patient sperm cryopreservation for fertility preservation: 10-year monocentric experience

Basic and Clinical Andrology, 2021
Résumé Contexte Lacryoconservation des spermatozoïdes, méthode efficace pour préserver lafertilité masculine, est très avantageuse pour les hommes atteints de cancer.Malheureusement, comme les médecins et les patients atteints de cancersignorent les ...
Xiao Liu, Bo Liu, Shasha Liu, Yang Xian, Wenrui Zhao, Bin Zhou, Xiao Xiao, Li Wang, Xiaofang Zhu, Bizhen Shu, Min Jiang, Fuping Li   +11 more
doaj   +1 more source

“Seminal testosterone”, rising viewpoint of local spermatogenesis in nonobstructive azoospermia: One center long-term bidirectional cohort study

Frontiers in Endocrinology, 2022
ObjectiveReproductive hormones are a traditional good method to evaluate spermatogenesis but might not accurately represent local spermatogenesis. To find a more accurate method, seminal reproductive hormones were studied.MethodsA bidirectional cohort ...
Huang Liu, Houbin Zheng, Yuehua Li, Yuqian Tang, Hongbo Peng, Qianyi Li, Jiaming Zhuang, Yingyi Zhou, Yu Zhou, Xiang’an Tu, Xinzong Zhang   +10 more
doaj   +1 more source

Sperm RNA code programmes the metabolic health of offspring

Nature Reviews Endocrinology, 2019
Mammalian sperm RNA is increasingly recognized as an additional source of paternal hereditary information beyond DNA. Environmental inputs, including an unhealthy diet, mental stresses and toxin exposure, can reshape the sperm RNA signature and induce ...
Yunfang Zhang, Junchao Shi, M. Rassoulzadegan, Francesca Tuorto, Qi Chen   +4 more
semanticscholar   +1 more source

Sperm thermotaxis [PDF]

Molecular and Cellular Endocrinology, 2006
Thermotaxis--movement directed by a temperature gradient--is a prevalent process, found from bacteria to human cells. In the case of mammalian sperm, thermotaxis appears to be an essential mechanism guiding spermatozoa, released from the cooler reservoir site, towards the warmer fertilization site.
Bahat, Anat, Eisenbach, Michael
openaire   +3 more sources

Results of a China external quality assessment program for seminal plasma biochemistry: a 5 years experience [PDF]

Journal of Men's Health
Background: This 5-year external quality assessment (EQA) study evaluated laboratory performance in analyzing seminal plasma biomarkers (zinc, citrate, fructose, neutral α-glucosidase (NAG)), assessing inter-lab variability, methodological trends, and
Yan Zheng, Lijuan Ying, Lin Yu, Yingbi Wu, Yuan Liu, Jintao Yuan, Chengcheng Diao, Yi Ma, Qingyuan Cheng, Fuping Li   +9 more
doaj   +1 more source

Jiawei Runjing Decoction Improves Spermatogenesis of Cryptozoospermia With Varicocele by Regulating the Testicular Microenvironment: Two-Center Prospective Cohort Study

Frontiers in Pharmacology, 2022
Objective: The aim of the study was to explore the evidence of JWRJD in the treatment of cryptozoospermia.Methods: A total of 162 cryptozoospermia patients with varicocele who refused to undergo surgery were included from January 2021 to December 2021 ...
Huang Liu, Huang Liu, Zhongwang Huang, Houbin Zheng, Zhiyong Zhu, Hui Yang, Xingzhang Liu, Tao Pang, Liping He, Hai Lin, Lei Hu, Qingqi Zeng, Qingqi Zeng, Lanying Han   +13 more
doaj   +1 more source