Carrot juice ingestion attenuates high fructose-induced circulatory pro-inflammatory mediators in weanling Wistar rats

J Sci Food Agric. 2017 Mar;97(5):1582-1591. doi: 10.1002/jsfa.7906. Epub 2016 Aug 25.

Abstract

Background: Adipose tissue, an endocrine organ, plays a vital role not only in energy homeostasis, but also in the development and/or progression of various metabolic diseases, such as insulin resistance, type 2 diabetes and non-alcoholic fatty liver disease (NAFLD), via several factors and mechanisms, including inflammation. This study tested, whether carrot juice administration affected the adipose tissue development and its inflammatory status in a high fructose diet-induced rat model. For this purpose, male weanling Wistar rats were divided into four groups and fed either control or high fructose diet of AIN-93G composition with or without carrot juice ingestion for an 8 week period.

Results: Administration of carrot juice did not affect the adiposity and cell size of visceral fat depot; retroperitoneal white adipose tissue (RPWAT), which was corroborated with unaltered expression of genes involved in adipogenic and lipogenic pathways. However, it significantly reduced the high fructose diet-induced elevation of plasma free fatty acid (FFA) (P ≤ 0.05), macrophage chemoattractant protein 1 (MCP1) (P ≤ 0.01) and high sensitive C-reactive protein (hsCRP) (P ≤ 0.05) levels.

Conclusion: Carrot juice administration attenuated the high fructose diet-induced elevation of levels of circulatory FFA and pro-inflammatory mediators; MCP1 and hsCRP without affecting the adiposity and cell size of visceral fat depot; RPWAT. © 2016 Society of Chemical Industry.

Keywords: adipose; inflammation; juice; steatosis; vegetables.

MeSH terms

  • Adiposity / drug effects
  • Animals
  • C-Reactive Protein / drug effects
  • Chemotactic Factors / adverse effects
  • Daucus carota*
  • Diet
  • Fatty Acids, Nonesterified / blood
  • Fructose / adverse effects*
  • Fruit and Vegetable Juices*
  • Inflammation Mediators / adverse effects
  • Intra-Abdominal Fat / cytology
  • Intra-Abdominal Fat / drug effects
  • Male
  • Rats, Wistar

Substances

  • Chemotactic Factors
  • Fatty Acids, Nonesterified
  • Inflammation Mediators
  • Fructose
  • C-Reactive Protein