Results 61 to 70 of about 325,218 (260)

Percentuais de frequência cardíaca máxima, consumo máximo de oxigênio e pico de velocidade em atletas de futebol e futsal: comparação entre testes de campo e laboratório [PDF]

, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Desportos, Programa de Pós-graduação em Educação Física, Florianópolis, 2009Objetivo: analisar as relações entre %FCmax, %VO2max e %PV em jogadores de equipes profissionais de ...
Brun, Gilson
core  

The evolution of large testes: Sperm competition or male mating rate?

, 2011
A positive relationship across species between the extent to which females mate with more than one male and relative testes mass has been demonstrated in a wide range of vertebrate taxa and certain insects.
Parker, Darren James, Vahed, Karim, Parker, Darren J.   +2 more
core   +1 more source

A Rare De Novo Missense Mutation in IFT122 Confers a Genetic Susceptibility Factor of Idiopathic Pediatric Uveitis Via Trio‐based Whole‐Exome Sequencing

Advanced Science, EarlyView.
A rare de novo IFT122‐A773E variant is identified in idiopathic pediatric uveitis and shown to exacerbate retinal inflammation and barrier dysfunction. Mechanistically, the variant enhances IFT43 interaction, elevates calcium signaling, and activates the MEK/ERK/FRA1 axis, revealing a previously unrecognized cilia‐associated pathway that may increase ...
Qian Zhou, Jiaxing Huang, Yilin Wang, Xingran Li, Xianyang Liu, Lingyu Dai, Hongshun Li, Qingfeng Wang, Jiangyi Liu, Guannan Su, Wanyun Zhang, Yang Deng, Qingfeng Cao, Yujie Lai, Xiang Luo, Changwei Huang, Ling Chen, Shengping Hou, Peizeng Yang   +18 more
wiley   +1 more source

Gradual Thickening of the Peritubular Lamina Propria in Healthy Boar Seminiferous Tubules Due to Cryptorchidism: Increased Immunoexpression of Diverse Proteins in Sertoli and Myoid Cells

Animals
In testicular pathology, the accumulation of extracellular matrix and thickening of the peritubular lamina propria are associated with altered spermatogenesis.
Vicente Seco-Rovira, Jesús Martínez-Hernández, Laís Freire-Brito, Ester Beltrán-Frutos, Juan Francisco Madrid, Luis Miguel Pastor   +5 more
doaj   +1 more source

Avaliação de desempenho diagnóstico dos testes laboratoriais para sífilis em doadores de sangue de Santa Catarina em 2009 a 2012 [PDF]

, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Programa de Pós-Graduação em Saúde Coletiva, Florianópolis, 2013.Introdução: A triagem sorológica, em doadores de sangue, representasignificado estratégico para
Baião, Aysla Marcelino
core  

Functional Sex Reversal in Adult Gonochoristic Teleosts is Mediated by Ovarian Germline Stem Cell Plasticity and Somatic Cell Transdifferentiation

Advanced Science, EarlyView.
Oocytes play crucial roles in maintaining ovarian fate in adult gonochoristic fish. Targeted oocyte ablation with aromatase inhibition triggers the activation of surviving germline stem cells and the transdifferentiation of somatic cells from granoulosa/theca to Sertoli/Leydig lineages, inducing a complete and functional female‐to‐male sex reversal ...
Yang Yang, Liechao Yu, Wanchang Zhang, Gary Wessel, Ruiyi Chen, Weihua Hu, Dongdong Xu   +6 more
wiley   +1 more source

Importance of ALDH1A enzymes in determining human testicular retinoic acid concentrations

Journal of Lipid Research, 2015
Retinoic acid (RA), the active metabolite of vitamin A, is required for spermatogenesis and many other biological processes. RA formation requires irreversible oxidation of retinal to RA by aldehyde dehydrogenase enzymes of the 1A family (ALDH1A).
Samuel L. Arnold, Travis Kent, Cathryn A. Hogarth, Stefan Schlatt, Bhagwat Prasad, Michael Haenisch, Thomas Walsh, Charles H. Muller, Michael D. Griswold, John K. Amory, Nina Isoherranen   +10 more
doaj   +1 more source

Histological and Functional study of white male mice testes and kidney treated with Tecrium Polium aqueous extract [PDF]

Engineering and Technology Journal, 2010
The oral administration of the aqueous extract of Teucrium polium to amature male mice in daily oral doses of 50 mg/kg body weight (group II) and 100mg/kg body weight (group III) for eight consecutive weeks were resulted insignificant increase ...
Wasnaa Hatif Mohammed
doaj   +1 more source

Evolutionary trade-offs between testes size and parenting in Neotropical glassfrogs. [PDF]

In males, large testes size signifies high sperm production and is commonly linked to heightened sperm competition levels. It may also evolve as a response to an elevated risk of sperm depletion due to multiple mating or large clutch sizes.
Ringler, Eva, Lüpold, Stefan, Prado, Cynthia P A, Guayasamin, Juan M., Valencia-Aguilar, Anyelet [UNESP], Prado, Cynthia P. A. [UNESP], Guayasamin, Juan M, Valencia-Aguilar, Anyelet   +7 more
core   +2 more sources

m6A‐Driven Pexophagy Triggers Placental Ferroptosis to Impair Fetal Growth Upon Environmental Stress

Advanced Science, EarlyView.
Prenatal environmental stress exposure promotes m6A modification to drive PEX2‐dependent pexophagy, thereby causing placental ferroptosis and FGR. ABSTRACT The role and underlying mechanisms of placental ferroptosis in fetal growth restriction (FGR) induced by environmental stress remain poorly understood.
Xin‐Xin Zhang, Ye‐Xin Luo, Cheng‐Fang Sun, Rui Pan, Yu‐Xi Wu, Zhi Yuan, Xin‐Run Wang, Xu‐Dong Zhang, Lan‐Lan Wu, Xiang‐Yu Yao, Zhan‐Dong Song, Wei Chang, Tian Wei, Pan‐Yuan Cai, Tian‐Ci Zhang, Yong‐Wei Xiong, De‐Xiang Xu, Hua Wang, Hua‐Long Zhu   +18 more
wiley   +1 more source