Telomeres do not always shorten over time in individuals with type 1 diabetes

Behalf FinnDiane Study Grp, Anna Syreeni, Luke M. Carroll, Stefan Mutter, Andrzej S. Januszewski, Carol Forsblom, Markku Lehto, Per-Henrik Groop, Alicia J. Jenkins

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Aims
We aimed to determine how white blood cell (WBC) telomeres and telomere length change over time are associated with health status in type 1 diabetes.

Methods
Relative telomere length (rTL) was measured in WBC DNA from two time-points (median 6.8 years apart) in 618 individuals from the Finnish Diabetic Nephropathy Study by quantitative PCR, with interassay CV ≤ 4%.

Results
Baseline rTL correlated inversely with age and was shorter in men. Individuals in the shortest vs. longest rTL tertile had adverse cardiometabolic profiles, worse renal function, and were prescribed more antihypertensive and lipid-lowering drugs. While overall rTL tended to decrease during the median 6.8-years of follow-up, telomeres shortened in 55.3% of subjects, lengthened in 40.0%, and did not change in 4.7%. Baseline rTL correlated inversely with rTL change. Telomere lengthening was associated with higher HDL-Cholesterol (HDL-C), HDL-C/ApoA1, and with antihypertensive drug and (inversely) with lipid-lowering drug commencement during follow-up. Correlates of rTL percentage change per-annum (adjusted model) were baseline BMI, eGFR, previous retinal laser treatment, HDL-C, and HDL-C/ApoA1.

Conclusions
Telomere length measurements may facilitate the treatment and monitoring of the health status of individuals with type 1 diabetes.
Original languageEnglish
Article number109926
JournalDiabetes Research and Clinical Practice
Volume188
Number of pages7
ISSN0168-8227
DOIs
Publication statusPublished - Jun 2022
MoE publication typeA1 Journal article-refereed

Fields of Science

  • Type 1 diabetes
  • Telomere
  • Telomere length change
  • Kidney function
  • Obesity
  • LENGTH
  • ASSOCIATION
  • RISK
  • HEART
  • DISEASE
  • NEPHROPATHY
  • ATTRITION
  • STATINS
  • CELLS
  • 3121 General medicine, internal medicine and other clinical medicine

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