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| Pereira,B.A.; Rocha,L.G.P.; Teles,M.C.; Silva,W.E.; Barbosa,J.A.; Rabelo,S.S.; Uchoa,A.S.; Rodrıguez-Gil,J. E.; Pereira,L.J.; Zangeronimo,M.G.. |
| ABSTRACT A study was conducted to evaluate the effect of chlorogenic acid (ChA) added pre-cooling and its combination with caffeine added during warming on cooled-stored boar semen parameters. Ten ejaculates were diluted in commercial extender with or without 4.5mg/ml ChA and stored at 15°C. After 0, 24 and 72 hours of storage, aliquots of these doses were taken and incubated at 37°C in the presence or absence of 8.0mM caffeine. Semen quality was evaluated after 10 and 120 minutes of incubation. The ChA increased (P <0.01) the sperm motility, viability, acrosomal integrity and the percentage of spermatozoa with high mitochondrial activity (PMHA), however, decreased (P <0.01) the malondialdehyde (MDA) concentration. Caffeine increased (P<0.05) the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antioxidant; Boar semen storage; Metabolic activator; Methylxanthine; Polyphenol. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000200489 |
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| Barbosa,J.A.; Rebello,M.A.. |
| Prostaglandins are natural fatty acid derivatives with diverse physiological effects, including immune function and the control of cell growth. While the action of prostaglandins in the induction of stress proteins in vertebrate cells is well documented, their functions in invertebrate cells have been poorly investigated. The purpose of the present study was to investigate the effect of prostaglandin A1 (PGA1; 0.25, 1.25 and 12.5 µg/ml) on protein synthesis during the growth of Aedes albopictus cells. We found that PGA1 stimulates the synthesis of several polypeptides with molecular masses of 87, 80, 70, 57, 29, 27 and 23 kDa in Aedes albopictus cells. When the proteins induced by PGA1 and those induced by heat treatment were compared by polyacrylamide gel... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Prostaglandin; Stress proteins; Aedes albopictus cells. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000400004 |
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