Usik, Maria A. Ogneva, Irina V.
Published in
Cellular Physiology and Biochemistry
Background/Aims: Changes in the external mechanical field result in cytoskeleton reorganization and the formation of adaptive patterns in different types of cells, including somatic cells and sex cells. The aim of this research was to study the protein and mRNA content of cytoskeletal and sperm-specific genes in the sperm and testis cells of mice. ...
Leme, D. P. Visacre, E. Castro, V. B. Lopes, M. D.
In cases where semen collection in tom-cats is not possible, FNA of testes is the alternative to evaluate sperm production. Although this technique for the diagnosis of fertility problems has been well discussed in other mammals (men, dogs, stallions), data for domestic cats are limited. Therefore, the aim of this study was to verify the reliabilit...
Garcia, Paulo Sérgio Fazio, Xavier Panizzon, Debra Bizzo, Nelio
La cultura global de pruebas se expandió rápidamente en las últimas décadas. En estas evaluaciones, las áreas más comúnmente probadas son las de Lenguaje y Matemáticas (LM). El enfoque y las políticas de responsabilización han provocado consecuencias en la enseñanza de Ciencias. En este estudio se reúnen evidencias de Brasil, Canadá y Australia par...
Harstine, B R Cruppe, L H Abreu, F M Rodrigues, A D Premanandan, C DeJarnette, J M Day, M L
Published in
Theriogenology
In prepubertal males, FSH facilitates Sertoli cell proliferation and testis maturation. The study aimed to determine the effect of an exogenous FSH treatment on hormone secretion and testis development in Angus bulls. Bulls (n = 22) weaned at 53 ± 3.8 days of age were randomized into two treatment groups based on age and pedigree. Beginning at Day ...
Sharma, Anoop Kumar Boberg, Julie Dybdahl, Marianne
The in vivo genotoxic potential of bisphenol A using the comet assay in mice and in human sperm cells in vitro without metabolizing enzymes was studied. Male mice were exposed by oral gavage to the following doses of bisphenol A (0,125, 250 and 500 mg/kg body weight). DNA damage was investigated in liver, kidney, testes, urinary bladder, colon and ...
Harstine, B R Cruppe, L H Abreu, F M Rodrigues, A D DeJarnette, J M Day, M L
Published in
Theriogenology
The use of genomic testing in the cattle industries has renewed an interest in hastening bull puberty. In prepubertal males, FSH facilitates Sertoli cell proliferation and testis maturation. The aim of this study was to determine the effect of prepubertal administration of a timed-release FSH (delivered in a hyaluronan solution) on hormone secretio...
Garcia, Paulo Sérgio Fazio, Xavier Panizzon, Debra Bizzo, Nelio
La cultura global de pruebas se expandió rápidamente en las últimas décadas. En estas evaluaciones, las áreas más comúnmente probadas son las de Lenguaje y Matemáticas (LM). El enfoque y las políticas de responsabilización han provocado consecuencias en la enseñanza de Ciencias. En este estudio se reúnen evidencias de Brasil, Canadá y Australia par...
Sharma, Anoop Kumar Boberg, Julie Dybdahl, Marianne
The in vivo genotoxic potential of bisphenol A using the comet assay in mice and in human sperm cells in vitro without metabolizing enzymes was studied. Male mice were exposed by oral gavage to the following doses of bisphenol A (0,125, 250 and 500 mg/kg body weight). DNA damage was investigated in liver, kidney, testes, urinary bladder, colon and ...
Sharma, Anoop Kumar Boberg, Julie Dybdahl, Marianne
The in vivo genotoxic potential of bisphenol A using the comet assay in mice and in human sperm cells in vitro without metabolizing enzymes was studied. Male mice were exposed by oral gavage to the following doses of bisphenol A (0,125, 250 and 500 mg/kg body weight). DNA damage was investigated in liver, kidney, testes, urinary bladder, colon and ...
Braun, Diva
É um texto sobre avaliação cognitiva e testes denominados: Correspondência termo a termo; conservação de quantidades descritivas e concretas; seriação; conservação de comprimento e de superfície.
