Search results for "Serum vitamin"
showing 2 items of 2 documents
Serum vitamin E levels negatively correlate with severity of age-related macular degeneration.
1999
Age-related macular degeneration (AMD) pathogenesis has been related to UV radiation and other factors that may promote increased oxidative damage to the retina. Patients with different AMD grading (n = 25) were compared with an age-matched group of AMD-free subjects (n = 15), both groups older than 60 years. A modification of the AMD grading system is proposed that allows patient grading and not single eye grading. AMD patients showed statistically significant lower serum levels of vitamin E and Zn than AMD-free subjects. Moreover, a negative correlation (Spearman's correlation coefficient r = -0.815, P < 0.001) could be established between AMD grading of both the patients' eyes and serum …
Vitamin D Insufficiency In Adult Asthma Is Associated With Asthma Severity And Control
2012
Data in asthmatic children suggest that low vitamin D levels are associated with poor asthma control, reduced lung function, and increased medication intake. To investigate the role of vitamin D insufficiency in adult asthmatics 25-hydroxyvitamin D was measured in 280 adult patients with asthma (mean±SEM: 45.0±0.8 yrs., 40% male, FEV1 74.9±1.4%) and correlated with clinical parameters of asthma control. The majority of patients had severe asthma (n=155, 55%) and were uncontrolled (n=144, 51%). Serum levels of vitamin D were significantly related to asthma severity (mean±SEM: intermittent 31.1±3.2 ng/ml, mild 27.3±1.6 ng/ml, moderate 26.5±1.5, severe 24.0±0.9, p=0.046) and asthma control (co…