Hatano rats are a suitable metabolic syndrome model for studying feeding behavior, blood pressure levels, and percent body fat

Anna Isobe, Tsutomu Shimada, Masaki Aburada, Rie Yanagisawa, Tomoyoshi Sakawa, Takahiro Nakamura, Toshiyuki Himi, Ryo Ohta, Maiko Kawaguchi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Currently, metabolic syndrome is a worldwide concern. Thus, it is imperative to understand the mechanism of metabolic syndrome by establishing various metabolic syndrome models. In this study, we used Hatano high-avoidance animals (HAA) and low-avoidance animals (LAA), both derived from Sprague-Dawley rats by selective breeding to determine high-or low-avoidance rates in shuttle-box active avoidance tests. HAA and LAA rats have some strain differences related to eating and appetite. Therefore, we determined whether Hatano rats could be used as a metabolic syndrome model. We compared food intake, body weights, blood pressure levels, plasma component levels, and fat contents between HAA and LAA rats. The HAA rats showed more active eating, higher blood pressure, higher percentage fat, and higher triglyceride levels than the LAA rats—these features correspond to some of the risk factors associated with metabolic syndrome. Our study suggests that HAA rats can be considered as a metabolic syndrome model by focusing on their feeding behavior, blood pressure levels, and percent body fat.

Original languageEnglish
Pages (from-to)147-154
Number of pages8
JournalJournal of Veterinary Medical Science
Volume81
Issue number1
DOIs
Publication statusPublished - 2019

Keywords

  • Blood pressure
  • Feeding behavior
  • Hatano rat
  • Metabolic syndrome
  • Model animal

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