Sökning: "dual-energy X-ray absorptiometry DXA"

Visar resultat 6 - 10 av 58 avhandlingar innehållade orden dual-energy X-ray absorptiometry DXA.

1. 6. When the paediatric heart is affected : impact on nutrition, growth and body composition from infancy to adolescence

   Författare :Lena Hansson; Annika Rydberg; Inger Öhlund; Torbjörn Lind; Tanis Fenton; Umeå universitet; []
   Nyckelord :Congenital heart disease; Patent ductus arteriosus; Preterm infant; Infant growth; Energy intake; Dietary fatty acid; Micronutrient intake; Vitamin D; Dual-energy X-ray absorptiometry DXA ; Fontan circulation.; pediatrik; Pediatrics; Food and Nutrition; kostvetenskap; kardiologi; Cardiology;

   Sammanfattning : BackgroundChildren with complex congenital heart disease (CHD) and very low birth weight (VLBW) infants with a patent ductus arteriosus (PDA) are two distinct groups of patients with different clinical care needs. Irrespective of the type of heart condition, nutritional intake and growth is largely affected in these individuals during infancy. LÄS MER

3. 7. Pharmacological Modulation of Skeletal Homeostasis

   Författare :Niklas U. Andersson; Institutionen för experimentell medicinsk vetenskap; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Farmakologi; toxicology; farmakognosi; farmaci; toxikologi; pharmacy; pharmacognosy; Pharmacological sciences; peripheral quantitative computed tomography.; dual energy X-ray absorptiomenty; estrogen; parathyroid hormone; gastrectomy; alendronate; ovariectomy; Bone;

   Sammanfattning : Both ovariectomy (OVX) and gastrectomy (GX) cause osteopenia in several animal species including humans. While the effect of OVX has been ascribed to estrogen deficiency, the underlying mechanism behind GX-induced osteopenia is poorly understood. LÄS MER

4. 8. The Influence of Physical Activity on Musculoskeletal Characteristics and Fracture Risk at Growth

   Författare :Fredrik Detter; Ortopedi - klinisk och molekylär osteoporosforskning; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; BMC; BMD; pQCT; DXA; Fractures; Children; Bone; Muscle;

   Sammanfattning : Physical Activity (PA) can improve neuromuscular development. A high level of physical activity can perhaps however lead to more fractures. This is a longitudinal population-based exercise intervention study where the school-based physical education (PE) in one school is increased from mean 60 min/week to mean 200 min/ week. LÄS MER

5. 9. Bone Mineral Density Determination in Children. Evaluation of a novel method and application to Duchenne muscular dystrophy

   Författare :Ann-Charlott Söderpalm; Göteborgs universitet; []
   Nyckelord :adolescents; age- and gender-matched; Becker; bone densitometry; bone markers; bone mineral density; calciotropic hormones; children; DXA; DXL; Duchenne; glucocorticoids; muscular dystrophy; normative; reference values; skeleton;

   Sammanfattning : Aims: The overall aims of this thesis were to evaluate the dual-energy X-ray and laser (DXL) method for bone densitometry measurements of the calcaneus in children, to provide reference data for bone mineral density (BMD) in the heel bone in young children and to apply the DXL technique to patients with Duchenne muscular dystrophy (DMD) and conduct a survey about bone health of DMD patients. Study populations and methods: The DXL Calscan method was modified and adapted for measurements in children and applied to bone densitometry in all subsequent studies. LÄS MER

7. 10. Form and Finish of Implants in Uncemented Hip Arthroplasty : Effects of Different Shapes and Surface Treatments on Implant Stability

   Författare :Stergios Lazarinis; Nils P. Hailer; Lars Weidenhielm; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Form; Finish; Total hip arthroplasty; Swedish Hip Arthroplasty Register; Hydroxyapatite; RSA; DXA; BMD; Stability.; Orthopaedics; Ortopedi;

   Sammanfattning : The design of an uncemented hip arthroplasty implant affects its long-term survival. Characteristics such as the form and the finish of the implant are crucial in order to achieve the best possible conditions for long-term implant survival. LÄS MER