Consulta: subjectFacets:"Germ cell"
Registros recuperados: 3
Data/hora: 04/06/2024 05:37:08

Parental exposure to the herbicide diuron results in oxidative DNA damage to germinal cells of the Pacific oyster Crassostrea gigas
Provedor de dados: 5
Autores: Barranger, Audrey; Heude-berthelin, Clothilde; Rouxel, Julien; Adeline, Beatrice; Benabdelmouna, Abdellah; Burgeot, Thierry; Akcha, Farida.
Chemical pollution by pesticides has been identified as a possible contributing factor to the massive mortality outbreaks observed in Crassostrea gigas for several years. A previous study demonstrated the vertical transmission of DNA damage by subjecting oyster genitors to the herbicide diuron at environmental concentrations during gametogenesis. This trans-generational effect occurs through damage to genitor-exposed gametes, as measured by the comet-assay. The presence of DNA damage in gametes could be linked to the formation of DNA damage in other germ cells. In order to explore this question, the levels and cell distribution of the oxidized base lesion 8-oxodGuo were studied in the gonads of exposed genitors. High-performance liquid chromatography...
Tipo: Text
Palavras-chave: Crassostrea gigas; Oxidative stress; DNA damage; Germ cell; Pesticides.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00295/40655/39753.pdf

Extragonadal malignant teratoma in a dog - case report
Provedor de dados: 45
Autores: Pêgas,G.R.A.; Monteiro,L.N.; Cassali,G.D.
ABSTRACT Teratomas are neoplasms thought to arise from germ cells which usually occur within gonads and are rarely described on extragonadal sites. The present study reports a case of a 15 year old female mongrel dog with a lumbosacral tumor. The tumor was microscopically composed of embryonic tissues with areas containing atypical undifferentiated cells, leading to the diagnosis of a malignant teratoma. Malignant teratomas are uncommon tumors in domestic animals.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Canine; Neoplasia; Germ cell; Teratoma; Extragonadal tumors.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100115

The effects of Tynnanthus fasciculatus (Bignoniaceae) infusion on testicular parenchyma of adult Wistar rats
Provedor de dados: 48
Autores: Melo,Fabiana C. S. A; Matta,Sérgio L. P; Paula,Tarcízio A. R; Gomes,Marcos L. M; Oliveira,Luciana C.
Traditional medicine provides strong guidance for scientific experiments involving plant products used by the Brazilian people. The species "cipó-cravo" (Tynnanthus fasciculatus) is a plant commonly used either to combat indigestion and stomachaches, or as a general stimulant and aphrodisiac. In this study, the effects of "cipó-cravo" infusion were investigated within the testicular parenchyma of adult Wistar rats. Rats were divided into 3 groups: a control (distilled water) and two treated groups, which received the plant infusion (100 and 200mg/animal/day). The 200mg dose promoted a significant increase of the testicular parenchyma weight and of the volume and total length of the seminiferous tubules, as well as in total daily sperm production and sperm...
Tipo: Journal article
Palavras-chave: Germ cell; Sertoli cell; Sperm production; Spermatogenesis.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602010000400009