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Rapamycin increases mortality in db/db mice, a mouse model of type 2 diabetes

  • Kavithalakshmi Sataranatarajan
  • , Yuji Ikeno
  • , Alex Bokov
  • , Denis Feliers
  • , Himabindu Yalamanchili
  • , Hak Joo Lee
  • , Meenalakshmi M. Mariappan
  • , Hooman Tabatabai-Mir
  • , Vivian Diaz
  • , Sanjay Prasad
  • , Martin A. Javors
  • , Goutam Ghosh Choudhury
  • , Gene B. Hubbard
  • , Jeffrey L. Barnes
  • , Arlan Richardson
  • , Balakuntalam S. Kasinath

Research output: Contribution to journalArticlepeer-review

Abstract

We examined the effect of rapamycin on the life span of a mouse model of type 2 diabetes, db/db mice. At 4 months of age, male and female C57BLKSJ-leprdb/db mice (db/db) were placed on either a control diet, lacking rapamycin or a diet containing rapamycin and maintained on these diets over their life span. Rapamycin was found to reduce the life span of the db/db mice. The median survival of male db/db mice fed the control and rapamycin diets was 349 and 302 days, respectively, and the median survival of female db/db mice fed the control and rapamycin diets was 487 and 411 days, respectively. Adjusting for gender differences, rapamycin increased the mortality risk 1.7-fold in both male and female db/db mice. End-of-life pathological data showed that suppurative inflammation was the main cause of death in the db/db mice, which is enhanced slightly by rapamycin treatment.

Original languageEnglish (US)
Pages (from-to)850-857
Number of pages8
JournalJournals of Gerontology - Series A Biological Sciences and Medical Sciences
Volume71
Issue number7
DOIs
StatePublished - Jul 2016

Keywords

  • Life span
  • Obesity
  • Toxicity
  • mTOR inhibition

ASJC Scopus subject areas

  • General Medicine

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