Results 61 to 70 of about 135,343 (265)

Plasma testosterone and 11-ketotestosterone levels of male pacu Piaractus mesopotamicus (Cypriniformes, Characidae)

Brazilian Journal of Medical and Biological Research, 1997
The levels of testosterone (T) and 11-ketotestosterone (11-KT) of the South American pacu Piaractus mesopotamicus were determined by radioimmunoassay during two stages of the reproductive cycle, i.e., resting and maturation, and the gonadosomatic index ...
R. Gazola, M.I. Borella
doaj   +1 more source

Determination of fluphenazine, related phenothiazine drugs and metabolites by combined high-performance liquid chromatography and radioimmunoassay. [PDF]

, 1981
Antibodies have been produced in rabbits immunized with a fluphenazine succinate-human serum albumin conjugate. By radioimmunoassay it is possible to quantify fluphenazine (FPZ), related phenothiazine drugs and several of their metabolites at the ...
Goldstein, SA, Van Vunakis, H
core  

Downregulation of EPAS1 and EGLN1 mRNA Expression Associated With High‐Altitude Adaptive Genetic Variants in Sherpa Highlanders

Annals of Human Genetics, EarlyView.
ABSTRACT Background and Aims Sherpa highlanders exhibit remarkable tolerance to hypoxia, most likely due to genetic adaptations shaped by natural selection at high altitude. This study examined the roles of endothelial PAS domain protein 1 (EPAS1) and egl‐9 family hypoxia‐inducible factor 1 (EGLN1) in the genetic mechanisms underlying this adaptation ...
Yunden Droma, Fengming Yue, Masao Ota, Nobumitsu Kobayashi, Yoshiaki Kitaguchi, Masayuki Hanaoka   +5 more
wiley   +1 more source

Perfil hormonal de Progesterona durante o ciclo Estral em novilhas Nelore confinadas com Diferentes Ondas de Crescimento Folicular Plasma Progesterone Level during the Estrous Cycle in Nelore Heifers Confined with Two, Three and Four Waves of Follicular Growth

Revista Brasileira de Zootecnia, 2001
Efetuaram-se coletas diárias de sangue, de 16 novilhas Nelore confinadas, para análise de progesterona plasmática pelo método de radioimunoensaio (RIA). Os dias analisados para progesterona foram o dia zero (estro) e a cada três dias até o dia -1 e o dia
Luciene Lomas Santiago, Ciro Alexandre Alves Torres, Luiz Fernando Uribe-Velásquez, Paulo Roberto Cecon, Eduardo Terra Nogueira   +4 more
doaj   +1 more source

Modulation of the asymmetry of sea urchin sperm flagellar bending by calmodulin [PDF]

, 1985
Sea urchin spermatozoa demembranated with Triton X-100 in the presence of EGTA, termed potentially asymmetric, generate asymmetric bending waves in reactivation solutions containing EGTA. After they are converted to the potentially symmetric condition by
Brokaw, C. J., Nagayama, S. M.
core   +2 more sources

Testicular histopathology and its association with germ cell numbers, serum concentrations of reproductive hormones, and semen quality

Andrology, EarlyView.
Abstract Background It is well‐established that spermatogenesis, semen quality, and reproductive hormones are interlinked. It is, however, less well‐described how various specific testicular histopathologies are linked to reproductive hormones and semen quality.
Gülizar Saritas, Nina Mørup, Trine H. Johannsen, Anders Juul, Lise Aksglaede, Sofia B. Winge, Kristian Almstrup   +6 more
wiley   +1 more source

Efeitos do estresse térmico nas concentrações plasmáticas de progesterona (P4) e estradiol 17-b (E2) e temperatura retal em cabras da raça Pardo Alpina Effects of heat stress on progesterone (P4) and estradiol-17b plasma concentrations and rectal temperature of Alpine Brown goats

Revista Brasileira de Zootecnia, 2001
Seis cabras lactantes foram distribuídas aleatoriamente em um delineamento experimental em "crossover", em dois grupos: sob condições termoneutras e estresse térmico.
Luis Fernando Uribe-Velásquez, Eunice Oba, Lúcia Helena de Albuquerque Brasil, Francisneide Neves de Sousa, Francisco Stéfano Wechsler   +4 more
doaj   +1 more source

Screening of endocrine organ-specific humoral autoimmunity in 47,XXY Klinefelter's syndrome reveals a significant increase in diabetes-specific immunoreactivity in comparison with healthy control men. [PDF]

, 2015
The aim of this study was to evaluate the frequency of humoral endocrine organ-specific autoimmunity in 47,XXY Klinefelter’s syndrome (KS) by investigating the autoantibody profile specific to type 1 diabetes (T1DM), Addison’s disease (AD), Hashimoto ...
ANZUINI, Antonella, GIANFRILLI, DANIELE, GRANATO, SIMONA, LENZI, Andrea, PANIMOLLE, FRANCESCA, RADICIONI, Antonio, Semeraro, A, TIBERTI, Claudio   +7 more
core   +1 more source

Low testosterone levels in men at age 31 associates with future risk of prediabetes and type 2 diabetes: A birth cohort study

Andrology, EarlyView.
Abstract Objective We aimed to investigate the association of a low serum testosterone concentration with the risk of abnormal glucose metabolism (i.e., prediabetes and type 2 diabetes) in men at a 15‐year follow‐up. Study population and methods In a population birth cohort, men with low testosterone (testosterone < 12.1 nmol/L, n = 136) and normal ...
Tuomisto A, Pinola P, Pesonen P, Franks S, Martikainen H, Tapanainen JS, Niinimäki M, Morin‐Papunen L   +7 more
wiley   +1 more source

Development and validation of a solid phase radioimmunoassay system for the determination of pregnancy-associated glycoproteins in bovine serum [PDF]

Kafkas Universitesi Veteriner Fakültesi Dergisi
The Pregnancy-Associated Glycoproteins (PAGs) belong to aspartic protease family and are synthesized by trophoblast cells of ruminant placenta and secreted into maternal blood and milk.
Aldjia BENABDELAZIZ, Samia BOUDJEMAI, Ahmed Amine ABDELLI, Rachid KHELILI, Rachid KAIDI, Nora MIMOUNE   +5 more
doaj   +1 more source