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Träfflista för sökning "WFRF:(Ribom Eva) ;pers:(Kindmark Andreas)"

Sökning: WFRF:(Ribom Eva) > Kindmark Andreas

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  • Björk, Anne, et al. (författare)
  • Variations in the vitamin D receptor gene are not associated with measures of muscle strength, physical performance, or falls in elderly men : Data from MrOS Sweden
  • 2019
  • Ingår i: Journal of Steroid Biochemistry and Molecular Biology. - : Elsevier BV. - 0960-0760 .- 1879-1220. ; 187, s. 160-165
  • Tidskriftsartikel (refereegranskat)abstract
    • The vitamin D receptor (VDR) has been proposed as a candidate gene for several musculoskeletal phenotypes. However, previous results on the associations between genetic variants of the VDR with muscle strength and falls have been contradictory. The MrOS Sweden survey, a prospective population-based cohort study of 3014 elderly men (mean age 75 years, range 69-81) offered the opportunity to further investigate these associations. At baseline, data were collected on muscle strength and also the prevalence of falls during the previous 12 months. Genetic association analysis was performed for 7 Single Nucleotide Polymorphisms (SNPs), covering the genetic region surrounding the VDR gene in 2924 men with available samples of DNA. Genetic variations in the VDR were not associated with five different measurements of muscle strength or physical performance (hand grip strength right and left, 6 m walking test (easy and narrow) and timed-stands test). However, one of the 7 SNPs of the gene for the VDR receptor, rs7136534, was associated with prevalence of falls (33.6% of the AA, 14.6% of the AG and 16.5% of the GG allele). In conclusion, VDR genetic variants are not related to muscle strength or physical performance in elderly Swedish men. The role of the rs7136534 SNP for the occurrence of falls is not clear.
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  • Grundberg, Elin, et al. (författare)
  • A TA-repeat polymorphism in the gene for the estrogen receptor alpha does not correlate with muscle strength or body composition in young adult Swedish women.
  • 2005
  • Ingår i: Maturitas. - 0378-5122. ; 50:3, s. 153-60
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVES: There are conflicting data in the literature whether estrogens affect muscle strength. Prospective studies with hormone replacement therapy have not been able to convincingly demonstrate a muscular effect and the putative role of estrogen in the development of lean body mass is not established. Both lean mass and fat mass are known to be under strong genetic control and therefore we have investigated the relation between a TA-repeat in the gene for the estrogen receptor alpha (ERalpha) and muscle strength and body composition. METHODS: 175 healthy Swedish women, aged 20-39 were randomly selected from the population registry and included in the study. Body mass measurements (lean mass, fat mass, body weight and BMI) and muscle strength (quadriceps, hamstring and grip strength) were evaluated. The TA-repeat in the ERalpha gene was amplified by polymerase chain reaction. RESULTS: Alleles with a TA-repeat length of 16 repeats or shorter were denoted short (e), and repeat length of 17 repeats or longer were denoted long (E). Women homozygous for the short and long genotype were denoted ee (31%) and EE (21%), respectively, while heterozygous individuals were denoted Ee (48%). The frequencies were in Hardy-Weinberg equilibrium. No associations were found between ERalpha genotypes and muscle strength or body composition. CONCLUSION: The TA-repeat in the human ERalpha gene does not correlate with muscle strength or body mass measurements, indicating that body composition is not as sensitive to genetic variation in this receptor as other target organs for estrogen.
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  • Grundberg, Elin, et al. (författare)
  • Genetic variation in the human vitamin D receptor is associated with muscle strength, fat mass and body weight in Swedish women
  • 2004
  • Ingår i: European Journal of Endocrinology. - : Oxford University Press (OUP). - 0804-4643 .- 1479-683X. ; 150:3, s. 323-328
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: Bone mineral density (BMD) is under strong genetic control and a number of candidategenes have been associated with BMD. Both muscle strength and body weight are considered to beimportant predictors of BMD but far less is known about the genes affecting muscle strength andfat mass. The purpose of this study was to investigate the poly adenosine (A) repeat and the BsmISNP in the vitamin D receptor (VDR) in relation to muscle strength and body composition in healthywomen. Design: A population-based study of 175 healthy women aged 20–39 years was used. Methods: The polymorphic regions in the VDR gene (the poly A repeat and the BsmI SNP) were amplifiedby PCR. Body mass measurements (fat mass, lean mass, body weight and body mass index) andmuscle strength (quadriceps, hamstring and grip strength) were evaluated. Results: Individuals with shorter poly A repeat, ss and/or absence of the linked BsmI restriction site(BB) have higher hamstring strength (ss vs LL, P ¼ 0.02), body weight (ss vs LL, P ¼ 0.049) andfat mass (ss vs LL, P ¼ 0.04) compared with women with a longer poly A repeat (LL) and/or thepresence of the linked BsmI restriction site (bb). Conclusions: Genetic variation in the VDR is correlated with muscle strength, fat mass and bodyweight in premenopausal women. Further functional studies on the poly A microsatellite areneeded to elucidate whether this is the functionally relevant locus or if the polymorphism is in linkagedisequilibrium with a functional variant in a closely situated gene further downstream of the VDR30UTR.
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  • Ribom, Eva L., et al. (författare)
  • Hyperkyphosis and back pain are not associated with prevalent vertebral fractures in women with osteoporosis
  • 2015
  • Ingår i: Physiotherapy Theory and Practice. - : Informa UK Limited. - 0959-3985 .- 1532-5040. ; 31:3, s. 182-185
  • Tidskriftsartikel (refereegranskat)abstract
    • Vertebral fractures (VFs) are the clinical consequence of spinal osteoporosis and may be associated with back pain and aggravated kyphosis. However, the relative importance of VFs as an underlying cause of kyphosis and chronic back pain is not known. The aim of this study was to investigate the relationship between prevalent VFs and the size of kyphosis, and back pain in osteoporotic women. Thirty-six women, aged 74.6 +/- 8.3 years, were consecutively recruited from the osteoporosis unit at Uppsala University Hospital. The patients had 1-9 radiographic verified VFs. Tragus wall distance (TWD) and numeric rating scale were used to measure kyphosis and pain. All patients had a hyperkyphosis (TWD >= 10 cm). Notably, there were no associations between numbers or location of VFs versus size of kyphosis (rho = 0.15, p = 0.4; rho = -0.27, p = 0.12) or severity of back pain (rho = -0.08, p = 0.66; rho = 0.16, p = 0.35). Furthermore, no association was evident between kyphosis and back pain (rho = -0.02, p = 0.89). There was, however, an association between size of kyphosis and age (R = 0.44, p = 0.008). In conclusion, these data suggest that prevalent VFs are not significantly associated with kyphosis or chronic back pain, in patients with manifest spinal osteoporosis.
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