Erythrocyte folate levels in young and old

Area of Science:

• Gerontology
• Nutritional Science
• Hematology

Background:

• Erythrocyte folate levels are crucial indicators of folate status.
• Age and health status can influence folate levels.
• Previous research suggests potential disparities in folate levels among different age groups and health conditions.

Purpose of the Study:

• To compare erythrocyte folate levels across diverse elderly populations and a young healthy cohort.
• To investigate the prevalence of low erythrocyte folate levels in community-dwelling elderly, those with acute illness, and those with chronic illness.

Main Methods:

• Cross-sectional study design.
• Recruitment of four distinct subject groups: young healthy adults, community-dwelling elderly, elderly with acute illnesses, and elderly with long-term illnesses.
• Measurement of erythrocyte folate levels using standard laboratory techniques.

Main Results:

• Young healthy subjects exhibited mean erythrocyte folate levels exceeding 296 mmicrogram/100 ml.
• Incidence of low erythrocyte folate levels (<100 mmicrogram/100 ml) was observed in 24% of elderly with acute illnesses, 16% of community-dwelling elderly, and 18% of elderly with long-term illnesses.
• The female/male sex ratio across all groups ranged from 2:1 to 3:1.

Conclusions:

• A significant proportion of elderly individuals, especially those with acute or chronic illnesses, present with low erythrocyte folate levels.
• Dietary folate deficiency is a likely contributor to low folate levels in the elderly.
• Impaired folate absorption may also play a role in folate status among older adults.