SEPP1 polymorphisms modulate serum glucose and lipid response to Brazil nut supplementation

Autor(es)

Donadio, Janaina L. S. ^[1] ; Rogero, Marcelo M. ^[2] ; Guerra-Shinohara, Elvira M. ^[3] ; Desmarchelier, Charles ^[4] ; Borel, Patrick ^[4] ; Cozzolino, Silvia M. F. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Fac Pharmaceut Sci, Dept Food & Expt Nutr, Sao Paulo - Brazil

^[2] Univ Sao Paulo, Sch Publ Hlth, Dept Nutr, Sao Paulo - Brazil

^[3] Univ Sao Paulo, Fac Pharmaceut Sci, Dept Clin & Toxicol Anal, Sao Paulo - Brazil

^[4] Aix Marseille Univ, INRA French Natl Inst Agr Res, INSERM, NORT, F-13005 Marseille - France

• Tipo de documento: Artigo Científico
• Fonte: EUROPEAN JOURNAL OF NUTRITION; v. 57, n. 5, p. 1873-1882, AUG 2018.
• Citações Web of Science: 2

Resumo

The consumption of Brazil nuts has been associated with benefits to lipid metabolism and reductions in total cholesterol and LDL concentrations. They are the richest natural source of selenium which has essential functions in human physiology. Genetic polymorphisms in Selenoprotein P could impair lipid and glucose metabolisms. The aim of this work was to verify the influence of polymorphisms in genes for selenoproteins on blood lipid levels after dietary supplementation with Brazil nuts in healthy adults. The study included 130 healthy volunteers selected at the University of So Paulo, Brazil. They were supplemented with one nut a day for 8 weeks, followed by 8 weeks without intervention. The following analyses were performed: anthropometric measurements, serum fasting glucose, lipid profile, C-reactive protein and plasma MDA levels. The volunteers were genotyped for SNPs rs1050450, rs3811699, rs1800699, rs713041, rs3877899, rs7579, rs34713741, and rs5845 in genes for selenoproteins. The concentrations of total cholesterol and fasting glucose levels decreased after 8 weeks of supplementation (p < 0.05). Glucose levels were modulated by rs3877899 in SEPP1, with significantly lower levels observed for individuals with the GA + AA genotype (p = 0.025). In addition, rs7579 was associated with cholesterol concentrations, which were significantly lower for individuals with the GG genotype (p = 0.053). Supplementation with one Brazil nut a day for 8 weeks reduced total cholesterol and glucose levels. Furthermore, our results suggest that rs3877899 might be associated with glucose concentrations and rs7579 with cholesterol concentrations. Therefore, the effect of genetic variations should be considered in future nutritional interventions evaluating the response to Brazil nut supplementation. (AU)

• Processo FAPESP: 11/17720-0 - Influência de diferentes genótipos no perfil de expressão de selenoproteínas em resposta à suplementação com selênio
• Beneficiário: Janaina Lombello Santos Donadio
• Modalidade de apoio: Bolsas no Brasil - Doutorado