Related Experiment Videos
Interdigestive plasma motilin concentrations in aged adults.
Journal of Gerontology
|November 1, 1986
Summary
Elderly adults exhibit higher interdigestive plasma motilin levels with reduced fluctuations compared to younger individuals. This hormonal pattern may influence gastric motility in older populations.
Area of Science:
- Gastroenterology
- Endocrinology
- Gerontology
Background:
- Motilin is a key hormone regulating gastrointestinal motility.
- Age-related changes in hormone levels can impact physiological functions.
Purpose of the Study:
- To compare interdigestive plasma motilin concentrations between healthy aged and younger adults.
- To investigate potential age-related alterations in motilin secretion patterns.
Main Methods:
- Radioimmunological determination of plasma motilin levels.
- Serial blood sampling every 15 minutes over a 3-hour fasting period.
- Analysis of median motilin concentrations and variability in 13 aged (>65 years) and 19 younger adults.
Main Results:
- Significantly higher median plasma motilin concentrations were observed in aged adults compared to younger adults.
- Aged individuals showed significantly lower coefficients of variation and peak increases in motilin levels.
- Interdigestive motilin levels were elevated with less pronounced fluctuations in the elderly.
Conclusions:
- Aged individuals exhibit a distinct interdigestive motilin profile characterized by elevated levels and reduced variability.
- This altered hormonal pattern may play a role in age-associated gastric motor disturbances.
- Further research is warranted to elucidate the clinical implications of these findings in elderly populations.