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EN
ObjectivesContrary to popular opinion on the preventive properties of vitamin D, results of previous studies have been inconclusive. The aim of this research was to evaluate the associations between the intake of vitamin D and metabolic abnormalities in a representative sample of Polish adults.Material and MethodsWithin the framework of the Multi-Center National Population Health Examination Survey (referred to as WOBASZ), a random sample of 2381 adult residents of Poland (53.8% of whom were women) was examined. All the study subjects were extensively reviewed, including 24-h dietary recall. The intake of vitamin D was assessed on the basis of dietary and supplements reviews. Metabolic abnormalities were evaluated using measurements of waist circumference (WC), blood pressure (BP), serum triglycerides (TG), high-density lipoprotein cholesterol (HDL-C) and fasting glycemia. Metabolic syndrome was defined according to the International Diabetes Federation.ResultsOf all the study participants, about 4.4 % of women and 2.6% of men declared a regular supplementation of vitamin D. Among women, a significant inverse correlation between vitamin D supplementation and the mean systolic BP was found (p < 0.01). A more substantial relationship was noted after dividing the study subjects according to their body mass. Among obese men, there was a significant inverse relationship between vitamin D intake and the mean systolic BP (p < 0.01) and diastolic BP (p < 0.05), as well as a positive correlation with HDL-C (p < 0.05). Among obese women, a negative correlation was found between vitamin D supplementation and the mean systolic BP (p < 0.01) and diastolic BP (p < 0.05), and a positive correlation with TG (p < 0.05). Among non-obese male subjects, a negative correlation between vitamin D intake and WC was observed.ConclusionsThe obtained findings suggest that the correlation between vitamin D intake and metabolic abnormalities may depend on the obesity status. A higher vitamin D intake may reduce BP and increase HDL-C in obese subjects. The positive relationship between vitamin D intake and TG concentration in women needs further investigation.
EN
The authors discuss the effects of static magnetic field (SMF) exposure based on reviewed literature reports. The systematic review covered both research carried out directly with people as well as studies with animals. A review was carried out in terms of various potential effects: carcinogenic effects, reproductive and metabolic disorders or the influence of SMF on the nervous and circulatory system. The possible biophysical and biological effects of the SMF were also described. Med Pr. 2019;70(1):107–20
PL
Autorzy pracy omawiają skutki narażenia na stałe pole magnetyczne (SPM) na podstawie doniesień z piśmiennictwa. Systematycznym przeglądem zostały objęte badania zarówno z udziałem ludzi, jak i prowadzone na zwierzętach. Dokonano analizy różnych potencjalnych skutków działania SPM, np. kancerogennego, a także jego wpływu na zaburzenia rozrodu, oddziaływania na układ nerwowy, układ krążenia czy na zaburzenia metaboliczne. Opisano również możliwe efekty biofizyczne i biologiczne oddziaływania SPM. Med. Pr. 2019;70(1):107–120
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