Active clinical trials for "Vitamin D Deficiency"

The purpose of this study is to examine the relationship between Vitamin D status and immunity.

Synthesis of vitamin D in the skin through the action of sunlight is a major source of vitamin D in parts of the world where foods are not fortified with the vitamin. Skin pigmentation (color), dress habits and season are some of the factors that limit sun exposure and affect vitamin D synthesis in the skin. Maternal vitamin D status is especially important to meet infant needs when newborns are not supplemented with vitamin D. In Ethiopia, vitamin D status of lactating women and infants and breast milk vitamin D concentration have never been assessed. The purpose of this study is to assess changes in maternal and infant markers of vitamin D status before and after vitamin D supplementation of the lactating mothers.

Vitamin D has been considered to possess anti-inflammatory and antimicrobial activity which may be a link for the known interaction of periodontitis (CP) and coronary heart disease (CHD). This study investigated the association between serum vitamin D levels and periodontitis in patients with CP and with CHD. Furthermore, the objective was to determine if periodontitis and CHD had an impact on serum vitamin D levels.

Vitamin D deficiency has become one of the most prevalent health problems in modern society. However, there has been no study that has reported the trend of vitamin D status in Asia. This study investigated the trend of vitamin D status in Korea between 2008 and 2014. This study is based on a representative national database acquired from the Korea National Health and Nutrition Examination Surveys (KNHANES) conducted from 2008 to 2014. Serum 25-hydroxyvitamin D [25(OH)D] levels were measured by radioimmunoassay among those aged 10 yrs or older. The temporal change of vitamin D status will be statistically analyzed.

The aim of this study is to detect antibodies to vitamin D in the serum at Different Groups of patients and healthy volunteer. A second goal is to find the relation between Vitamin D Antibody and Vitamin D level.

Purpose: To examine whether helminth infection during pregnancy alters Vitamin-D-metabolism and reactivity of the child's immune system Hypothesis: Helminth infection during pregnancy is associated with altered Vitamin D levels and Vitamin D receptor expression in the placenta and modified immune reactivity in the infant.

Aims:Retrospectively observe the effects of Caltrate supplementation on the clinical effect of mesalazine in patients with ulcerative colitis. Design: From January 2015 to December 2020, through retrieving the clinical database of the Second Affiliated Hospital of Wenzhou Medical University, patients with active UC who accepted mesalazine treatment were enrolled. According to whether Caltrate was supplemented at the same time, the patients were divided into supplementary group and non-supplementary group. The modified Mayo score and several laboratory indicators were compared between the two groups.

Vitamin D has been considered to possess anti-inflammatory and antimicrobial activity which may be a link for the known interaction of Systemic Sclerosis (SSc) and coronary heart disease (CHD). This study investigated the association between serum vitamin D levels and SSc and periodontitis in patients with SSc, CP and with CHD. Furthermore, the objective was to determine if periodontitis and CHD had an impact on serum vitamin D levels.

the study aims to messure the vitamin D levels in medical staff in the hospital. The physicians in the course of their internship who work indoors and work many night shifts have limited sun exposure in all seasons. Nursing staff who work shifts and work indoors are at the same risk of liltle sun exposure. The study addresses the amount of sun exposure, assessed by a sun exposure questioner, age, gender,work load related to number of shifts in the physicien group and in nursing group the job percentile we also adress religion (clothing cover)as a factor.

People with heart failure may have low magnesium and low vitamin D levels. They may also have abnormally high levels of parathyroid hormones. Magnesium and vitamin D are important chemicals that are not routinely measured in blood tests. We are studying how many people with heart failure have low levels of magnesium and vitamin D. We are also studying how many people with heart failure have overactive parathyroid glands and if that is related to their vitamin D levels.