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Hyperglycemic memory in diabetic cardiomyopathy

Jiabing Zhan1,2, Chen Chen1,2, Dao Wen Wang3,4

  • 1Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.

Frontiers of Medicine
|December 18, 2021
PubMed

Insights

Diabetic cardiomyopathy persists despite controlled blood sugar due to hyperglycemic memory. This phenomenon explains ongoing cardiac damage in diabetes, highlighting the need for new therapeutic targets beyond glucose control.

Area of Science:

  • Cardiology
  • Endocrinology
  • Molecular Biology

Background:

  • Cardiovascular diseases are the leading cause of death in diabetes mellitus.
  • Diabetic cardiomyopathy is a major cardiovascular complication.
  • Hyperglycemia drives cardiac hypertrophy, fibrosis, and apoptosis.

Purpose of the Study:

  • To review current research on the mechanisms of hyperglycemic memory in diabetic cardiomyopathy.
  • To explain why intensive glycemic control fails to prevent heart failure in diabetic patients.

Main Methods:

  • Review of multicenter randomized clinical studies.
  • Analysis of pathophysiological changes in the diabetic cardiovascular system.
  • Exploration of molecular pathways activated by hyperglycemia.

Main Results:

  • Intensive glycemic control does not reduce heart failure in diabetes.
  • Hyperglycemic stress persists in the cardiovascular system despite normal blood glucose levels.
  • The hyperglycemic memory phenomenon contributes to diabetic cardiomyopathy.

Conclusions:

  • Hyperglycemic memory is a critical factor in diabetic cardiomyopathy.
  • Understanding HGM mechanisms is crucial for developing new diabetes therapies.
  • Targeting HGM may offer novel strategies to protect the diabetic heart.

Keywords:
diabetesdiabetic cardiomyopathyhyperglycemic memory

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