Sökning: "Vitamin D3"

Visar resultat 1 - 5 av 59 avhandlingar innehållade orden Vitamin D3.

1. 1. Aspects of Vitamin D : Prevalence of deficiency and impact on musculoskeletal parameters

   Författare :Anne Björk; Östen Ljunggren; Gunnar Johansson; Andreas Kindmark; Anna Spångeus; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Vitamin D; CYP2R1; Vitamin D receptor Gene; Polymorphisms; Muscle Strength; Endokrinologi och Diabetologi; Endocrinology and Diabetology;

   Sammanfattning : Vitamin D is central in calcium turnover, and adequate levels are important for skeletal health. It is not clear how large contributions from food and sunlight are in Swedish primary care patients, considering the low radiation of UVB in Sweden and fortification of some foods, and whether differences exist between patients of immigrant and Swedish origin. LÄS MER

3. 2. Vitamin A and Osteoporosis : Experimental and Clinical Studies

   Författare :Sara Johansson; Håkan Melhus; Andreas Kindmark; Monica Lind; Göran Toss; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Internal medicine; vitamin A; bone; osteoporosis; Invärtesmedicin; Internal medicine; Invärtesmedicin;

   Sammanfattning : Vitamin A in high doses is severely toxic to the rat skeleton, and the active metabolite retinoic acid (RA) can induce bone resorption in vitro. An excessive dietary intake of vitamin A has been associated with reduced bone mineral density and an increased risk of hip fracture. LÄS MER

4. 3. Vitamin D Hydroxylating Enzymes and Analogues in Parathyroid Tumors and Breast Cancer

   Författare :Ulrika Segersten; Gunnar Westin; Per Hellman; Göran Åkerström; Martin Bäckdahl; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Surgery; hyperparathyroidism; breast cancer; vitamin D; CYP27B1; CYP24A1; vitamin D analogues; ketoconazole; vitamin D receptor; Kirurgi; Surgery; Kirurgi; Surgery; kirurgi;

   Sammanfattning : In hyperparathyroidism (HPT) raised serum concentrations of ionized calcium is caused by increased secretion of parathyroid hormone (PTH) by parathyroid tumors. Active vitamin D, 1α,25-dihydroxyvitamin D3, is known to suppress PTH secretion and to reduce proliferation of parathyroid tumor cells. LÄS MER

5. 4. Vitamin D and its receptor in parathyroid tumors

   Författare :Pamela Correa; Martin Bäckdahl; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Surgery; hyperparathyroidism; loss of heterozygoisty; vitamin D; vitamin D receptor; polymorphism; hydroxylase; genetics; tumorigenesis; Kirurgi; Surgery; Kirurgi; Surgery; kirurgi;

   Sammanfattning : Correa, P. 2002. Vitamin D and its receptor in parathyroid tumors. Acta Universitatis Upsaliensis. LÄS MER

7. 5. Vitamin D and its role in obesity and other associated conditions

   Författare :Christos Karefylakis; Eva Rask; Stefan Särnblad; Kerstin Landin-Wilhelmsen; Örebro universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Vitamin D; obesity; Roux-en-Y gastric bypass; secondary hyperpara-thyroidism; anemia; iron deficiency; body composition; cardiorespiratory fitness; Vitamin D C3 epimer;

   Sammanfattning : Vitamin D has received much attention in recent years due to the re-emergence of vitamin D deficiency as a global health issue along with increasing evidence indicating that 1,25-dihydroxivitamin D, the hormonally active form of vita-min D, not only acts in calcium and bone metabolism but also generates ex-traskeletal biological responses.In this thesis, the role of vitamin D in obesity and other associated condi-tions has been studied. LÄS MER