Publications by authors named "Christos Karefylakis"
Purpose: Several observational studies have shown an association between vitamin D deficiency and non-skeletal major health issues including impaired cardiorespiratory fitness and adiposity. Only a few studies have examined the impact of vitamin D supplementation on these conditions and the results are ambiguous. The aim of this study was to examine the effect of vitamin D supplementation on body composition and cardiorespiratory fitness in overweight/obese men with vitamin D deficiency.
View Article and Find Full Text PDFBackground: Riedel´s thyroiditis (RT) is a rare inflammatory disease of the thyroid gland, causing compression and fibrosis of adjacent tissues. Typically the goiter is hard and firm. Hoarseness, dyspnea, and dysphagia may be present.
View Article and Find Full Text PDFBackground: Bariatric surgery has gained wide acceptance as treatment for severe obesity and is associated with decreased overall mortality. The aims of this study were to evaluate the prevalence of anemia long term after Roux-en-Y gastric bypass (RYGB) and to search for factors predicting anemia.
Methods: All 745 patients who underwent RYGB between 1993 and 2003 at either Örebro or Uppsala University Hospital and who were living in Sweden were invited to participate by providing a fasting blood sample and completing a questionnaire about their health status.
Background: The primary aim of this study was to evaluate the prevalence of vitamin D deficiency and secondary hyperparathyroidism after Roux-en-Y gastric bypass. Secondly, we have tried to assess predictors for vitamin D deficiency.
Methods: Five hundred thirty-seven patients who underwent primary Roux-en-Y gastric bypass surgery between 1993 and 2003 at the Örebro University Hospital and Uppsala University Hospital were eligible for the study.