Results 111 to 120 of about 109,586 (294)
Obesity impairs male fertility through long-term effects on spermatogenesis
BMC Urology, 2018 ObjectiveThis study aimed to investigate the effect and possible underlying mechanisms of high-fat diet-induced obesity on spermatogenesis in male rats.MethodsA total of 45 male rats were randomly divided into control (n = 15, normal diet) and obesity ...
Yan-Fei Jia +9 more
semanticscholar +1 more source
Zoo Biology, EarlyView.First successful vasectomy in a southern African male giraffe, Giraffa camelopardis giraffa ABSTRACT This study reports the first successful vasectomy on a southern African male giraffe (Giraffa camelopardalis giraffa). The goal of the procedure was to create a teaser male for reproductive studies.
Francois Deacon +7 more
wiley +1 more source
Spermatogenesis, sperm output and seminal quality of Holstein bulls electroejaculated after administration of oxytocin [PDF]
, 1988 W. E. Berndtson, G. Igboeli
openalex +1 more source
Scientific Reports, 2018 Spermatogenesis depends on endocrine, autocrine and paracrine communications along the hypothalamus-pituitary-gonad axis. Bisphenol A (BPA), an estrogen-mimic endocrine disrupting chemical, is an environmental contaminant used to manufacture ...
R. Chianese +14 more
semanticscholar +1 more source
Seasonal body mass dynamics mediate life‐history trade‐offs in a hibernating mammal
Journal of Animal Ecology, EarlyView.We tested a suite of ecological hypotheses to explain variation in seasonal body mass dynamics of a fat‐storing mammalian hibernator. We further demonstrated that pre‐hibernation mass gain in ground squirrels mediates an annual allocation trade‐off between current and future reproduction as the squirrels forage and rear young under predation risk ...
Austin Z. T. Allison +4 more
wiley +1 more source
Aqueous Extract of Cyperus esculentus L. (Cyperaceae) Enhances Libido and Spermatogenesis in Male Wistar Rats [PDF]
, 2018 Blessing Emosho Atoigwe-Ogeyemhe +2 more
openalex +1 more source
Genetic engineering for SIT application: a fruit fly‐focused review
Insect Science, EarlyView.Abstract Sterile insect technique (SIT) has become a key component of efficient pest control. Fruit fly pests from the Drosophilidae and Tephritidae families pose a substantial and overwhelmingly increasing threat to the agricultural industry, aggravated by climate change and globalization among other contributors.
Serafima Davydova +2 more
wiley +1 more source
Insect Science, EarlyView.Abstract Globalization and climate change may be driving the spread of the quarantine fruit fly, Bactrocera carambolae, highlighting the need for ecofriendly control methods like the Sterile Insect Technique (SIT), which relies on releasing sterile males to reduce wild populations.
Kamoltip Laohakieat +2 more
wiley +1 more source
American Journal of Men's Health, 2019 The objective of this study was to compare the effect of pulsatile gonadorelin pump (PGP) and cyclical gonadotropin (human chorionic gonadotropin [HCG]/human menopausal gonadotropin [HMG]) therapy (CGT) on spermatogenesis in congenital hypogonadotropic ...
Luyao Zhang +6 more
doaj +1 more source
Molecular mechanisms of sex determination in Lepidoptera: current status and perspectives
Insect Science, EarlyView.The genetic basis of sex determination in Lepidoptera was discovered in 2014 in the silkworm Bombyx mori. In this model species, the W chromosome‐derived small piRNA called Fem piRNA downregulates the expression of a Z‐linked gene, Masculinizer (Masc), which leads to the default female‐specific splicing of the doublesex gene (dsxF) and thus to female ...
František Marec +2 more
wiley +1 more source