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Title: Gender-specific increase in susceptibility to metabolic syndrome of offspring rats after prenatal caffeine exposure with post-weaning high-fat diet

Prenatal caffeine exposure (PCE) alters the hypothalamic–pituitary–adrenocortical (HPA) axis-associated neuroendocrine metabolic programming and induces an increased susceptibility to metabolic syndrome (MS) in intrauterine growth retardation (IUGR) offspring rats. High-fat diet (HFD) is one of the main environmental factors accounting for the incidence of MS. In this study, we aimed to clarify the gender-specific increase in susceptibility to MS in offspring rats after PCE with post-weaning HFD. Maternal Wistar rats were administered with caffeine (120 mg/kg·d) from gestational day 11 until delivery. The offspring rats with normal diet or HFD were euthanized at postnatal week 24, and blood samples were collected. Results showed that PCE not only reduced serum adrenocorticotropic hormone (ACTH) and corticosterone levels, but also enhanced serum glucose, triglyceride and total cholesterol (TCH) concentrations in the offspring rats. Moreover, several interactions among PCE, HFD and gender were observed by a three-way ANOVA analysis. In PCE offspring, HFD could aggravate the degree of increased serum triglyceride level. Meanwhile, serum corticosterone levels of females were decreased more obviously than those of males in PCE offspring. The results also revealed interactions between HFD and gender in the levels of serum ACTH, triglyceride and TCH, which were changed more evidently in female HFDmore » offspring. These results indicate that HFD could exacerbate the dysfunction of lipid metabolism and the susceptibility to MS induced by PCE, and the female offspring are more sensitive to HFD-induced neuroendocrine metabolic dysfunction than their male counterparts. - Highlights: • Caffeine induced HPA axis dysfunction in offspring rats fed by high-fat diet (HFD). • Caffeine induced an increased susceptibility to metabolic syndrome. • HFD aggravated susceptibility to metabolic syndrome induced by caffeine. • Female was more sensitive to HFD-induced neuroendocrine metabolic dysfunction than male. • There were interactions among caffeine, high-fat diet and gender.« less
Authors:
 [1] ;  [1] ;  [2] ; ; ; ;  [1] ;  [3] ;  [4] ;  [5] ;  [2] ;  [1] ;  [2]
  1. Department of Pharmacology, Basic Medical School of Wuhan University, Wuhan 430071 (China)
  2. (China)
  3. Department of Epidemiology & Health Statistics, Public Health School of Wuhan University, Wuhan 430071 (China)
  4. UMR 7561 CNRS-NancyUniversité, Faculté de Médicine, Vandoeuvre-lès-Nancy (France)
  5. Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071 (China)
Publication Date:
OSTI Identifier:
22465752
Resource Type:
Journal Article
Resource Relation:
Journal Name: Toxicology and Applied Pharmacology; Journal Volume: 284; Journal Issue: 3; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
60 APPLIED LIFE SCIENCES; ACTH; BLOOD; CAFFEINE; CHOLESTEROL; CORTICOSTERONE; DIET; DISEASES; FATS; FEMALES; GLUCOSE; GROWTH FACTORS; INSULIN; INTERACTIONS; MALES; METABOLISM; PROGENY; RATS; RECEPTORS; TRIGLYCERIDES