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Related Experiment Videos

Carbohydrate metabolism in the elderly.

D Elahi1, D C Muller

  • 1Massachusetts General Hospital, Geriatric Research Laboratory, Boston 02114, USA. Elahi.Dariush@mgh.harvard.edu

European Journal of Clinical Nutrition
|October 21, 2000
PubMed
Summary

As people age, glucose intolerance increases, but this effect can be improved with diet and exercise. Even with revised diabetes criteria, fewer elderly individuals may be diagnosed.

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Area of Science:

  • Endocrinology
  • Gerontology
  • Metabolic Health

Background:

  • Glucose homeostasis is crucial for overall health.
  • Aging is associated with changes in glucose metabolism.
  • Understanding these changes is vital for managing age-related metabolic disorders.

Purpose of the Study:

  • To review the effects of aging on glucose homeostasis.
  • To examine evidence for age-related changes in glucose tolerance, fasting glucose, and HbA1c.
  • To discuss the impact of aging on insulin sensitivity and beta-cell function.

Main Methods:

  • Review of existing scientific literature on aging and glucose metabolism.
  • Analysis of evidence regarding hepatic glucose production and peripheral glucose uptake.
  • Examination of studies on beta-cell function and age-related hyperglycemia disorders.

Main Results:

  • Glucose intolerance generally increases with age.
  • Evidence suggests hepatic insulin sensitivity remains unaltered with age.
  • Peripheral insulin sensitivity changes with age are debated, with obesity being a major confounder.
  • Beta-cell sensitivity to glucose appears intact in aging individuals.

Conclusions:

  • While age-related glucose intolerance is observed, lifestyle modifications like diet and exercise can ameliorate its effects.
  • Revised diagnostic criteria for diabetes may lead to fewer diagnoses in the elderly.
  • Further research is needed to fully understand the interplay between aging, obesity, and glucose metabolism.

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