• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2023 Fiscal Year Final Research Report

Elucidation of mechanism to detect neutral fat in food and maintain homeostasis-Search for lifestyle-related disease improvement method

Research Project

  • PDF
Project/Area Number 19K11655
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 59040:Nutrition science and health science-related
Research InstitutionGihu University of Medical Science (2020-2023)
Fujita Health University (2019)

Principal Investigator

KANEKO Yoko  岐阜医療科学大学, 薬学部, 教授 (20319263)

Co-Investigator(Kenkyū-buntansha) 長崎 弘  藤田医科大学, 医学部, 教授 (30420384)
小谷 侑  藤田医科大学, 医学部, 講師 (60644622)
河田 美穂  藤田医科大学, 医学部, 助教 (90761601)
Project Period (FY) 2019-04-01 – 2024-03-31
KeywordsTNF受容体 / 2型糖尿病 / インスリン / インスリン受容体 / HOMA-IRインデックス
Outline of Final Research Achievements

Mice lacking type I TNF receptor (R1-KO), type II TNF receptor (R2-KO), mice lacking both receptors (D-KO), and C57BL/6 (WT) were fed with a normal diet (chow) or high fat diet (HFD) for 8 weeks, and various parameters were measured.
All four groups gained weight when they were fed with HFD, but the rate of weight gain was significantly lower in R1-KO. R2-KO, D-KO and WT showed insulin resistance when they were fed with HFD, but R1-KO did not. R2-KO and D-KO gained weight even with chow, and D-KO showed insulin resistance. These data suggest that there are differences in the development of insulin resistance depending on the TNF receptor subtype.

Free Research Field

神経生理学

Academic Significance and Societal Importance of the Research Achievements

これまでの研究ではR1-KOはHFD飼育で体重が増加しないと報告されていた。その理由として、type I TNF受容体が欠損していることによりTNFαによる炎症反応が起こらないことが挙げられる。一方、R2-KOをHFDで飼育すると炎症を抑制する経路が抑制されるため、体重が増加すると考えられていたが、D-KOについては既知の報告は認められなかった。D-KOは通常食でも体重が増加し、インスリン抵抗性を示したことから、D-KOの体重が増加するメカニズムを解明することにより、糖尿病の予防、治療法につなげられると考える。

URL: 

Published: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi