Effect of white tea (Camellia sinensis (L.)) extract in the glycolytic profile of Sertoli cell

• Tipo: Artigo em Revista Científica Internacional
• Data: 2014

Autores

Martins, AD (Autor) Outra; Alves, MG (Autor) Outra; Bernardino, RL (Autor) Outra; Dias, TR (Autor) Outra; Silva, BM (Autor) Outra; Oliveira, PF (Autor) Outra

Revista

Título: European Journal of Nutrition

Vol. 53

Páginas: 1383-1391

ISSN: 1436-6207

Editora: Springer Nature

Indexação

ISI Web of Knowledge - 22 Citações

Scopus - 29 Citações

Outras Informações

ID Authenticus: P-008-TA9

DOI: 10.1007/s00394-013-0640-5

Abstract (EN): Many health benefits have been attributed to tea (Camellia sinensis (L.)), and tea infusions are used as dietary agent and included in food supplements. Herein, we report the effect of a white tea (WTEA) extract in Sertoli cell (SC) metabolism. The SC is responsible for the nutritional support of the developing germ cells. An aqueous WTEA extract was prepared and analyzed by H-1-NMR. Rat SCs were cultured with or without the WTEA extract. mRNA and protein levels of glucose transporters (GLUT1 and GLUT3), phosphofructokinase, lactate dehydrogenase (LDH) and monocarboxylate transporter 4 were determined by qPCR and western blot. LDH activity was assessed and metabolite production/consumption determined by H-1-NMR. WTEA-exposed SCs presented decreased protein and mRNA levels of GLUT1 and decreased glucose uptake. However, intracellular LDH activity was increased and SC lactate production was stimulated by the presence of the WTEA extract. Interestingly, alanine production was also found to be stimulated in WTEA extract-exposed SCs. WTEA extract altered the glycolytic profile of cultured SCs, stimulating lactate production. Since lactate is used as metabolic substrate and has an anti-apoptotic effect in the developing germ cells, the supplementation with WTEA extract may be advantageous to improve male reproductive health.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 9