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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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Author(s):
da Silva Miyaguti, Natalia Angelo [1] ; Pereira de Oliveira, Sarah Christine [1] ; Cintra Gomes-Marcondes, Maria Cristina [1]
Total Authors: 3
Affiliation:
[1] Univ Estadual Campinas, UNICAMP, Lab Nutr & Canc, Dept Struct & Funct Biol, Biol Inst, Rua Monteiro Lobato 255, BR-13083862 Campinas, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Nutrition Research; v. 51, p. 29-39, MAR 2018.
Web of Science Citations: 2
Abstract

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)

FAPESP's process: 17/02739-4 - Nutrition and cancer: study of molecular, proteomic and metabolomic aspects of experimental model of cachexia
Grantee:Maria Cristina Cintra Gomes Marcondes
Support type: Research Projects - Thematic Grants
FAPESP's process: 13/16115-1 - Biochemical and molecular mechanisms of cachexia. effects of Walker factor and leucine supplementation on myotube cell culture
Grantee:Maria Cristina Cintra Gomes Marcondes
Support type: Regular Research Grants
FAPESP's process: 14/13334-7 - Nutrition and cancer: metabolomic, and proteomic profile of muscle, placental, fetal, and tumor cell signaling pathways in Walker-256 tumour-bearing pregnant rats submitted to leucine nutritional supplementation
Grantee:Maria Cristina Cintra Gomes Marcondes
Support type: Regular Research Grants
FAPESP's process: 15/09371-7 - Modulatory effects of nutritional supplementation with leucine and polyunsaturated omega-3 fatty acid on Walker tumour growth and influence in supplemented rats offspring
Grantee:Sarah Christine Pereira de Oliveira
Support type: Scholarships in Brazil - Scientific Initiation