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Sökning: WFRF:(Rask Eva 1958 )

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1.
  • Arvidsson, Bo, 1962-, et al. (författare)
  • Reference data for bone mineral density in Swedish women using digital X-ray radiometry
  • 2013
  • Ingår i: Journal of clinical densitometry. - New York, USA : Elsevier. - 1094-6950 .- 1559-0747. ; 16:2, s. 183-188
  • Tidskriftsartikel (refereegranskat)abstract
    • During the last decade, digital X-ray radiometry (DXR) has been used to measure bone mineral density (BMD) in the metacarpal bones. The aim of this study was to establish Swedish reference material for bone mass in women, measured in the metacarpal bones with DXR, and compare these data with the data from the manufacturer. A sample of 1440 women aged 20-79yr living in Örebro County was randomly assigned from the population register. Microdose mammography was used (Sectra MDM L30; Sectra Imtec AB, Linköping, Sweden) to measure BMD. Cole's LMS method was used to calculate DXR. Six hundred sixty-nine (48.3%) women participated. Peak bone mass occurred at the age of 43.4yr with a BMD of 0.597g/cm(2) (standard deviation: 0.050). Our Swedish data correlated well with the manufacturer's material. Only among women aged 50-59yr did BMD differ, where the Swedish sample had lower values. The LMS method can be used to describe the DXR data and provide a more detailed picture of bone density distribution. DXR-BMD in Swedish women aged 20-79yr is equivalent to findings from other studies, showing the same distribution of BMD in most age groups except for ages 50-59yr.
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  • Karefylakis, Christos, et al. (författare)
  • Effect of Vitamin D supplementation on body composition and cardiorespiratory fitness in overweight men : a randomized controlled trial
  • 2018
  • Ingår i: Endocrine (Basingstoke). - : Humana Press. - 1355-008X .- 1559-0100. ; 61:3, s. 388-397
  • Tidskriftsartikel (refereegranskat)abstract
    • 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.Methods: This study was a prospective, placebo controlled, double blinded, randomized trial with a study period of 6 months. Forty overweight/obese men (BMI > 25 kg/m2) with vitamin D deficiency (25(OH)D ≤ 55 nmol/L) were randomized to receive either 2000 IU Cholecalciferol drops or the equivalent amount of drops of placebo. At baseline and follow up body composition and cardiorespiratory fitness were measured and blood samples were obtained. Body composition was measured using bioelectrical impedance analysis (BIA) and cardiorespiratory fitness using cardiopulmonary exercise test (CPET). The primary outcomes were changes in percentage body fat and in maximum oxygen uptake (VO2max).Results: No statistically significant difference between the placebo and the intervention group regarding changes in percentage body fat (p = 0.54) and VO2max (p = 0.90) was observed. Moreover, there was no statistically significant difference between the groups concerning changes in BMI (p = 0.26), maximum load (p = 0.89) and oxygen uptake at anaerobic threshold (AT) (p = 0.14).Conclusions: We conclude that treatment with 2000 IU/d vitamin D for 6 months does not impact body composition or maximum oxygen uptake in overweight/obese men with vitamin D deficiency.
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  • Raoof, Mustafa, 1966-, et al. (författare)
  • Bone Mineral Density, Parathyroid Hormone, and Vitamin D After Gastric Bypass Surgery : a 10-Year Longitudinal Follow-Up
  • 2020
  • Ingår i: Obesity Surgery. - : Springer. - 0960-8923 .- 1708-0428.
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: The aim of the present study was to study longitudinal changes in bone mineral density (BMD), vitamin D, and parathyroid hormone (PTH) levels in females over a 10-year period after laparoscopic Roux-en-Y gastric bypass (LRYGB).METHODS: at baseline, were included. BMD, BMI, S-calcium, S-25(OH)-vitamin D, and fP-PTH were measured preoperatively and 2, 5, and 10 years postoperatively.RESULTS: Ten years after surgery, BMD of the spine and femoral neck decreased by 20% and 25%, respectively. Changes in serum levels of vitamin D, PTH, and calcium over the same period were small.CONCLUSION: After LRYGB with subsequent massive weight loss, a large decrease in BMD of the spine and femoral neck was seen over a 10-year postoperative period. The fall in BMD largely occurred over the first 5 years after surgery.
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  • Raoof, Mustafa, 1966-, et al. (författare)
  • Effect of Gastric Bypass on Bone Mineral Density, Parathyroid Hormone and Vitamin D : 5 Years Follow-up
  • 2016
  • Ingår i: Obesity Surgery. - New York, USA : Springer. - 0960-8923 .- 1708-0428. ; 26:5, s. 1141-1145
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: The aim of the present study was to see if there are longitudinal changes in bone mineral density (BMD), vitamin D or parathyroid hormone (PTH) in females 5 years after Laparoscopic Roux-en-Y Gastric Bypass (LRYGB).Methods: Thirty-two women with mean age 41.6 ± 9.3 years and mean body mass index (BMI) 44.5 ± 4.6 kg/m(2) were included. Preoperatively, 2 and 5 years postoperatively, BMD, weight, height, S-calcium, S-albumin, S-creatinine, S-25(OH)-vitamin D and fP-PTH were measured.Results: The mean decrease in BMI between baseline and 5 years after surgery was 29.4 %. BMD of the spine and femur measured as z- and t-scores, showed a linear, statistically significant declining trend over the years. The fall in BMD of the spine and femoral neck between baseline and 5 years after surgery was 19 and 25 %, respectively. The mean fP-PTH showed a significant increase over the study period (20.2 μg/L increase, 95 % CI:-31.99 to -8.41). S-calcium, both free and corrected for albumin, showed a decrease between baseline and 5 years after surgery. Eight patients developed osteopenia and one osteoporosis after a 5-year follow-up.Conclusion: LRYGB is an efficient method for sustained long-term body weight loss. There is, however, a concomitant decrease in BMD and S-calcium, and an increase in fP-PTH.
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8.
  • Raoof, Mustafa, 1966-, et al. (författare)
  • Health-Related Quality-of-Life (HRQoL) on an Average of 12 Years After Gastric Bypass Surgery
  • 2015
  • Ingår i: Obesity Surgery. - 0960-8923 .- 1708-0428. ; 25:7, s. 1119-1127
  • Tidskriftsartikel (refereegranskat)abstract
    • It is evident that morbidly obese patients have a low health-related quality-of-life (HRQoL), and this low HRQoL has become a common reason for them to seek bariatric surgery. Several HRQoL studies demonstrate a dramatic postoperative improvement, but most of these have had a short follow-up period.An observational, cross-sectional study for HRQoL was conducted to study 486 patients (average age of 50.7 +/- 10.0 years, with 84 % of them being female) operated with gastric bypass (GBP) in the period 1993 to 2003 at the University Hospitals of A-rebro and Uppsala. Mean follow-up after gastric bypass was 11.5 +/- 2.7 years (range 7-17). Two HRQoL instruments were used, SF-36 and the Obesity-related Problems scale (OP). The study group was compared with two control groups, both matched for age and gender, one from the general population and one containing morbidly obese patients evaluated and awaiting bariatric surgery.The study group scored better in the SF-36 domains (all four physical domains and the vitality subscore) and OP scale compared to obese controls, but their HRQoL scores were lower than those of the general population. HRQoL was better among younger patients and in the following subgroups: men, patients with satisfactory weight loss, satisfied with the procedure, free from co-morbidities and gastrointestinal symptoms, employment, good oral status and those not hospitalised or regularly followed up for non-bariatric reasons.Long-term follow-up after GBP for morbid obesity showed better scores in most aspects of HRQoL compared to obese controls but did not achieve the levels of the general population. Patients with better medical outcome after gastric bypass operation had better HRQoL.
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  • Rask, E, et al. (författare)
  • Cortisol metabolism after weight loss : associations with 11 beta-HSD type 1 and markers of obesity in women
  • 2013
  • Ingår i: Clinical Endocrinology. - 0300-0664 .- 1365-2265. ; 78:5, s. 700-705
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective Increased glucocorticoid metabolite excretion and enhanced expression and activity of 11-hydroxysteroid dehydrogenase type 1 in adipose tissue are closely correlated with obesity and its detrimental consequences. Weight loss ameliorates the latter. The aim of this study was to explore whether increased glucocorticoid exposure in obesity is improved with substantial weight loss and thus is a consequence rather than a cause of obesity. Design and patients A prospective cohort study in 31 women. Measurements 11-HSD type 1 expression and activity, urinary glucocorticoid metabolite excretion, body composition including regional adipose tissue depots and insulin resistance by HOMA-IR before and 2years after gastric bypass surgery. Results After weight loss, excretion of cortisol and cortisone metabolites decreased. Both cortisol and cortisone metabolite excretion correlated with central obesity, where the intraabdominal fat depot showed the strongest association. Cortisol metabolites correlated with 11-HSD type 1 activity in abdominal subcutaneous adipose tissue. The ratio of cortisol to cortisone metabolites [(5-tetrahydrocortisol (5THF)+tetrahydrocortisol (THF)+-cortol)/(tetrahydrocortisone (THE)+-cortolone)] and the ratio of 5-THF/THF both decreased after stable weight loss, reflecting a downregulation of the net activities of 11-HSD type 1 and 5-reductase. Conclusion Long-term weight loss in women is not only followed by reduced glucocorticoid production, but also favourably decreases the global and tissue-specific activity of the cortisol-activating enzyme 11 -HSD type 1, possibly contributing to the health benefits of bariatric surgery.
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10.
  • Stenberg, Erik, 1979-, et al. (författare)
  • The Effect of Laparoscopic Gastric Bypass Surgery on Insulin Resistance and Glycosylated Hemoglobin A1c : a 2-Year Follow-up Study
  • 2020
  • Ingår i: Obesity Surgery. - : Springer. - 0960-8923 .- 1708-0428. ; 30:9, s. 3489-3495
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Bariatric surgery improves insulin sensitivity and secretion in patients with type 2 diabetes, but the effect on patients with prediabetes or even normal glucose tolerance deserves further consideration.Methods: Cohort study including patients operated with laparoscopic Roux-en-Y gastric bypass surgery (LRYGB) between November 2012 and June 2017 at the orebro University Hospital (n = 813) with follow-up of 742 patients 2 years after surgery. Fasting insulin, glucose, glycosylated hemoglobin (HbA1c), and homeostatic model assessment of insulin resistance (HOMA-IR) were analyzed at baseline and 2 years after surgery for patients with overt type 2 diabetes, prediabetes, or non-diabetes.Results: Fasting insulin levels improved for all groups (diabetics baseline 25.5 mIU/L, IQR 17.5-38.0, 2 years 7.6 mIU/L, IQR 5.4-11.1, p < 0.001; prediabetics baseline 25.0 mIU/L, IQR 17.5-35.0, 2 years 6.7mIU/L, IQR 5.3-8.8, p < 0.001; non-diabetics baseline 20.0 mIU/L, IQR 14.0-30.0, 2 years 6.4 mIU/L, IQR 5.0-8.5, p < 0.001). HbA1c improved in all groups (diabetics baseline 56 mmol/mol, IQR 49-74 [7.3%, IQP 6.6-8.9], 2 years 38 mmol/mol, IQR 36-47 [5.6%, IQR 5.4-6.4], p < 0.001; prediabetics baseline 40 mmol/mol, IQR 39-42 [5.8%, IQR5.7-6.0], 2 years 36 mmol/mol, IQR 34-38 [5.5%, IQR 5.3-5.6], p < 0.001; non-diabetics baseline 35 mmol/mol, IQR 33-37 [5.4%, IQR 5.2-5.5]; 2 years 34 mmol/mol, IQR 31-36 [5.3%, IQR 5.0-5.4], p < 0.001). HOMA-IR improved in all groups (diabetics baseline 9.3 mmol/mol, IQR 5.4-12.9, 2 years 1.9 mmol/mol, IQR 1.4-2.7, p < 0.001; prediabetics baseline 7.0 mmol/mol, IQR 4.3-9.9, 2 years 1.6 mmol/mol, IQR 1.2-2.1, p < 0.001; non-diabetics 4.9 mmol/mol, IQR 3.4-7.3, 2 years 1.4 mmol/mol, IQR 1.1-1.9, p < 0.001).Conclusion: Insulin homeostasis and glucometabolic control improve in all patients after LRYGB, not only in diabetics but also in prediabetics and non-diabetic obese patients, and this improvement is sustained 2 years after surgery.
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