Exposure to maternal overnutrition and a high-fat diet during early postnatal development increases susceptibility to renal and metabolic injury later in life.

Autor: Jackson CM; Department of Physiology and Biophysics, University of Mississippi Medical Center, 2500 North State St., Jackson, MS, USA., Alexander BT, Roach L, Haggerty D, Marbury DC, Hutchens ZM, Flynn ER, Maric-Bilkan C
Jazyk: angličtina
Zdroj: American journal of physiology. Renal physiology [Am J Physiol Renal Physiol] 2012 Mar 15; Vol. 302 (6), pp. F774-83. Date of Electronic Publication: 2011 Dec 07.
DOI: 10.1152/ajprenal.00491.2011
Abstrakt: Overnutrition during pre- and postnatal development both confer increased susceptibility to renal and metabolic risks later in life; however, whether they have an additive effect on the severity of renal and metabolic injury remains unknown. The present study tested the hypothesis that a combination of a pre- and postnatal diet high in fat/fructose would exacerbate renal and metabolic injury in male offspring later in life. Male offspring born to high fat/high-fructose-fed mothers and fed a high-fat/high-fructose diet postnatally (HF-HF) had increased urine albumin excretion (450%), glomerulosclerosis (190%), and tubulointerstitial fibrosis (101%) compared with offspring born to mothers fed a standard diet and fed a standard diet postnatally (NF-NF). No changes in blood pressure or glomerular filtration were observed between any of the treatment groups. The HF-HF offspring weighed ∼23% more than offspring born to mothers fed a high-fat/high-fructose diet and fed a normal diet postnatally (HF-NF), as well as offspring born to mothers fed a standard diet regardless of their postnatal diet. The HF-HF rats also had increased (and more variable) blood glucose levels over 12 wk of being fed a high-fat/high-fructose diet. A combination of exposure to a high-fat/high-fructose diet in utero and postnatally increased plasma insulin levels by 140% compared with NF-NF offspring. Our data suggest that the combined exposure to overnutrition during fetal development and early postnatal development potentiate the susceptibility to renal and metabolic disturbances later in life.
Databáze: MEDLINE