In Utero and Postnatal Exposure to Long Chain (n-3) PUFA Enhances Intestinal Glucose Absorption and Energy Stores in Weanling Pigs
| Autor: | Joel D. Spencer, Nicholas K. Gabler, Michael E. Spurlock, Doug M. Webel |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
medicine.medical_specialty
Saturated fat Guinea Pigs Soybean meal Medicine (miscellaneous) Weaning Biology Jejunum chemistry.chemical_compound Fetus Pregnancy Internal medicine Fatty Acids Omega-3 medicine Animals Nutrition and Dietetics Glycogen Glucose transporter food and beverages Fish oil Eicosapentaenoic acid Glucose medicine.anatomical_structure Endocrinology Animals Newborn Intestinal Absorption chemistry Female Energy Metabolism |
| Zdroj: | The Journal of Nutrition. 137:2351-2358 |
| ISSN: | 0022-3166 |
| Popis: | The aim of this research was to determine whether feeding gestating and lactating sows (n-3) PUFA [eicosapentaenoic acid (EPA) and/or docosahexenoic acid (DHA)] or coconut fat (saturated fat) influences ex vivo glucose absorption in the proximal jejunum and glucose and glycogen concentration of liver and muscle of their offspring at weaning. Sows were fed 1 of 4 diets for 150 d, which included the entire gestation and lactation periods. The diets consisted of basal corn/soybean meal (CONT), CONT + protected EPA and DHA-rich fish oil (PFO), CONT + DHA Gold fat (DHAGF), and CONT + coconut fat (COCO). All tissues were collected from piglets (n = 4 per treatment) following a 24-h period of food deprivation, which was initiated at weaning. Proximal jejunum samples were mounted in modified Ussing chambers for transport determinations. Relative to the CONT (7 muA/cm(2)), active glucose transport was greater (P = 0.013) in piglets from sows fed the PFO (30 microA/cm(2)) and DHAGF (40 microA/cm(2)) diets, but not the COCO diet (19 microA/cm(2); pooled SEM = 5). Likewise, jejunum expression of glucose transporter 2 and sodium glucose transporter 1 protein tended (P < 0.10) to be greater in piglets from dams fed the PFO and DHAGF diets, as did AMP-activated protein kinase activity. Piglets' muscle glycogen was greater than in CONT (34 +/- 5.2 mg/g wet tissue) only in piglets from dams fed the DHAGF (46 +/- 5.2 mg/g wet tissue; P < 0.05). These results indicate that (n-3) PUFA, particularly DHA, improves intestinal glucose absorption and muscle glycogen concentrations in newly weaned pigs. These findings may also have important implications for human mothers and infants. |
| Databáze: | OpenAIRE |
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