Several lines of evidence from previous studies suggest that Calcium (Ca) and Magnesium (Mg) may be involved in intracellular and interneuronal processes associated with affective disorders. However, there have been inconsistent results on the effect of Ca and Mg on depressive mood disorder. This cross-sectional study was conducted to determine whether serum Ca and Mg levels, as well as serum Ca/Mg ratio, are associated with mental health in relatively healthy, adult women without psychiatric disorders. One hundred and twelve adult women were recruited from the outpatient clinic in a university hospital setting. Serum Ca and Mg levels were measured and indicators of mental health such as depression, anxiety, and stress were evaluated using two validated questionnaires; the Hospital Anxiety Depression Scale and the Modified Brief Encounter Psychosocial Instrument Stress Scale. After categorizing the serum Ca and Mg levels, and the Ca/Mg ratio into tertiles, the mean scores on each mental health scale were compared using analysis of covariance. The risk of depressive mood disorder according to the tertiles of serum Mg level and serum Ca/Mg ratio was assessed using logistic regression analysis. Women in the middle tertile of serum Ca/Mg ratio had significantly lower scores on depression and stress scales (p = 0.004 and p = 0.007, respectively) and a lower odds ratio (OR) for the risk of depressive mood disorder (OR = 0.31, CI(95%) 0.10-0.93) than those in the highest tertile. The OR for the risk of depressive mood disorder was higher in women in the lowest tertile of serum Mg than in those in the highest tertile (OR = 3.92, CI(95%) 1.11-13.83). Serum Mg level and serum Ca/Mg ratio may be involved in the mechanism for the progression of depressive mood or stress perception in relatively healthy, adult women.
The cerebellum is an important region responsible for adolescent cognitive function and sleep, and their correlation is expected to show different patterns depending on age and gender. We examined the regional cerebellar gray matter volume (GMV), executive function (EF) and insomnia symptoms to identify their correlation and gender differences in adolescents. Data for a total of 55 subjects’ (M = 31, F = 24, 14.80 ± 1.39 years old) were analyzed. The correlations between cerebellar regional GMV and Wisconsin card sorting test (WCST) subcategories showed that EF was better with larger GMV both in males and females. Far more overall correlations with cerebellar regions were observed in boys, with corresponding correlation strength being higher, and differences in localization were also observed in contrast to girls. Larger cerebellar GMV corresponded to better EF in adolescents. Insomnia did not influence the correlations between cerebellar regional GMV and EF, but more severe insomnia in boys correlated to smaller GMV in the right flocculonodular lobe. These results might implicate that the adolescent cerebellum is involved differently in EF dependent on gender.
Magnesium in serum and hair was associated with BMD in premenopausal women. The ratio of serum calcium to magnesium appears to be a significant indicator of BMD.
Objective: This cross-sectional study evaluated the association between serum minerals and body mass index in adult women. Methods: One hundred and eighteen adult women were recruited by written advertisement from outpatient clinics or a health promotion center at a university hospital. Serum calcium, magnesium, copper and zinc were measured by an automatic analytical instrument and body mass index was calculated from height and weight. Results: Serum magnesium was inversely associated with body mass index (b ¼ À0.283, P ¼ 0.001) whereas serum copper had a positive association with body mass index (b ¼ 0.197, P ¼ 0.025) after adjusting for age, physical activity, energy intake, dietary fat, alcohol consumption, supplements and menopause status. No associations were found with serum calcium and zinc. Conclusion: Serum magnesium and copper may be involved in the regulation of body size in adult women.
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