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| Marín-Quiroga,Arlette; Villanueva-Fierro,Ignacio; Rodríguez-Pérez,M. Alberto; Lares-Asseff,I. Antonio; Cháirez-Hernández,Isaías; Proal-Nájera,J. Bernardo. |
| The content of insulin-like growth factor 1 (IGF-1) in bovine milk in México is unknown, and high levels could increase the health risk for adult people who ingest milk. The aim of this study was to determine the level of IGF-1 and its relationship with fat content using liquid chromatography with ion trap as a mass detector in milk marketed in Durango, México. During 18 months we analyzed, three times, six lots chosen randomly of whole, reduced-fat, and low-fat milk of three brands. Each sample was pre-treated using cut-off membranes, digested with trypsin, and subjected to liquid chromatography-mass spectrometry. There was a significant difference in the mean concentration of IGF-1 between the brands and types of milk analyzed (Chi square=34.66;... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cut-off filtration; Fat; Insulin-like growth factor 1; Milk analysis; Somatomedin. |
| Ano: 2015 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952015000200001 |
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| Cassilhas,R.C.; Lee,K.S.; Venâncio,D.P.; Oliveira,M.G.M.; Tufik,S.; Mello,M.T.. |
| It has been demonstrated that resistance exercise improves cognitive functions in humans. Thus, an animal model that mimics this phenomenon can be an important tool for studying the underlying neurophysiological mechanisms. Here, we tested if an animal model for resistance exercise was able to improve the performance in a hippocampus-dependent memory task. In addition, we also evaluated the level of insulin-like growth factor 1/insulin growth factor receptor (IGF-1/IGF-1R), which plays pleiotropic roles in the nervous system. Adult male Wistar rats were divided into three groups (N = 10 for each group): control, SHAM, and resistance exercise (RES). The RES group was submitted to 8 weeks of progressive resistance exercise in a vertical ladder apparatus,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Physical exercise; Passive avoidance; Insulin-like growth factor 1; Resistance training; Hippocampus; Memory. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012001200015 |
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