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Thyroid Function Status in Elderly Male.

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As men age, thyroid hormone levels change, leading to decreased thyroid function. This study found lower free tri-iodothyronine (FT₃) and free thyroxine (FT₄), and higher thyroid stimulating hormone (TSH) in elderly males compared to younger ones.

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Area of Science:

  • Endocrinology
  • Gerontology
  • Physiology

Background:

  • Thyroid hormone production, metabolism, and action are altered with aging.
  • The prevalence of thyroid dysfunction significantly increases in older populations.

Purpose of the Study:

  • To evaluate age-related changes in thyroid function among elderly males.
  • To compare thyroid function status between elderly and younger male populations.

Main Methods:

  • A cross-sectional study involving 140 male subjects (70 younger, 70 elderly).
  • Measurement of serum free tri-iodothyronine (FT₃), free thyroxine (FT₄), and thyroid stimulating hormone (TSH) using RIA.
  • Statistical analysis included unpaired student's t-test and Pearson's correlation coefficient.

Main Results:

  • Elderly males exhibited significantly lower mean serum FT₃ and FT₄ levels compared to younger males.
  • Elderly males showed a significantly higher mean serum TSH level than younger males.
  • Serum FT₃ and FT₄ levels were negatively correlated with age, while TSH was positively correlated with age.

Conclusions:

  • Thyroid function progressively declines with advancing age in males.
  • Age-related changes in thyroid hormones (FT₃, FT₄, TSH) are evident in the male population.