Maternal nutritional supplementation with fish oil and/or leucine improves hepatic function and antioxidant defenses, and minimizes cachexia indexes in Walker-256 tumor-bearing rats offspring

Autor(es)

da Silva Miyaguti, Natalia Angelo ^[1] ; Pereira de Oliveira, Sarah Christine ^[1] ; Cintra Gomes-Marcondes, Maria Cristina ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, UNICAMP, Lab Nutr & Canc, Dept Struct & Funct Biol, Biol Inst, Rua Monteiro Lobato 255, BR-13083862 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Nutrition Research; v. 51, p. 29-39, MAR 2018.
• Citações Web of Science: 2

Resumo

In this study, we hypothesized that throughout the pregnancy/weaning period, nutritional supplementation with leucine (which improves protein synthesis) and/or fish oil (rich in omega-3, which modulates oxidative stress) can minimize/improve cachexia-induced damage in rat offspring. Thus, we investigated the maternal supplementation with these nutrients over the modulation of cachexia index and liver function in tumor-bearing rats offspring. Pregnant rats were fed control, leucine, omega-3, and leucine/omega-3 diets, which were given throughout the gestational and weaning periods. The male offspring were subjected to a control diet until adulthood (120 days) and then distributed into 5 groups (n=4-6 per group): C, Control; W, tumor-bearing; WL, tumor-bearing group with a maternal leucine-rich diet; WO, tumor-bearing group with a maternal omega-3 diet; and WLO, tumor-bearing group with a maternal leucine-rich and omega-3 diet. The W group had a higher cachexia index (31.83 +/- 2.9%), but this parameter decreased in the WO (P=0.0380) and WLO groups (P=0.0187). In addition, the W group had a lower survival rate, and the WLO group exhibited a trend toward increased survival (P=0.0505). The hepatic function in maternal supplemented groups was preserved, while the W group exhibited an increased aspartate-aminotransferase/alanine-aminotransferase ratios (P=0.0152) and also enhanced liver oxidative stress, with higher alkaline phosphatase (P=0.0190) and superoxide dismutase (P=0.0190) activities, and trended toward to higher malondialdehyde content (P=0.0556). In contrast, the maternal supplemented groups had similar liver enzymes and malondialdehyde contents. Thus, we concluded that supplementing the maternal diet modulated/improved liver antioxidant responses and ameliorated the cachexia state in tumor-bearing rat offspring. (C) 2018 Elsevier Inc. All rights reserved. (AU)

• Processo FAPESP: 17/02739-4 - Nutrição e câncer: estudo dos aspectos moleculares, proteômicos e metabolômicos em modelo experimental de caquexia
• Beneficiário: Maria Cristina Cintra Gomes Marcondes
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 14/13334-7 - Nutrição e câncer: avaliação do perfil metabolômico, proteômico e das vias de sinalização celular muscular, placentária e fetal e do tecido tumoral sob influência dos hormônios da gravidez em ratas
• Beneficiário: Maria Cristina Cintra Gomes Marcondes
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 13/16115-1 - Estudo dos mecanismos bioquímicos e moleculares da caquexia: avaliação dos efeitos do fator Walker (FW) e da leucina em cultura celular de miotúbulos (células C2C12)
• Beneficiário: Maria Cristina Cintra Gomes Marcondes
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 15/09371-7 - Efeitos moduladores da suplementação nutricional com leucina e ácido graxo poli-insaturado ômega-3 sobre crescimento de câncer na prole de ratas suplementadas
• Beneficiário: Sarah Christine Pereira de Oliveira
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica