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Träfflista för sökning "WFRF:(Funck Brentano C) "

Sökning: WFRF:(Funck Brentano C)

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  • Wijns, W, et al. (författare)
  • Myocardial revascularization
  • 2011
  • Ingår i: REVISTA PORTUGUESA DE CARDIOLOGIA. - 0870-2551. ; 30:12, s. 951-1005
  • Tidskriftsartikel (övrigt vetenskapligt)
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  • Moverare-Skrtic, Sofia, et al. (författare)
  • Osteoblast-derived NOTUM reduces cortical bone mass in mice and the NOTUM locus is associated with bone mineral density in humans
  • 2019
  • Ingår i: Faseb Journal. - 0892-6638. ; 33:10, s. 11163-11179
  • Tidskriftsartikel (refereegranskat)abstract
    • Osteoporosis is a common skeletal disease, affecting millions of individuals worldwide. Currently used osteoporosis treatments substantially reduce vertebral fracture risk, whereas nonvertebral fracture risk, mainly caused by reduced cortical bone mass, has only moderately been improved by the osteoporosis drugs used, defining an unmet medical need. Because several wingless-type MMTV integration site family members (WNTs) and modulators of WNT activity are major regulators of bone mass, we hypothesized that NOTUM, a secreted WNT lipase, might modulate bone mass via an inhibition of WNT activity. To characterize the possible role of endogenous NOTUM as a physiologic modulator of bone mass, we developed global, cell-specific, and inducible Notum-inactivated mouse models. Notum expression was high in the cortical bone in mice, and conditional Notum inactivation revealed that osteoblast lineage cells are the principal source of NOTUM in the cortical bone. Osteoblast lineage-specific Notum inactivation increased cortical bone thickness via an increased periosteal circumference. Inducible Notum inactivation in adult mice increased cortical bone thickness as a result of increased periosteal bone formation, and silencing of Notum expression in cultured osteoblasts enhanced osteoblast differentiation. Large-scale human genetic analyses identified genetic variants mapping to the NOTUM locus that are strongly associated with bone mineral density (BMD) as estimated with quantitative ultrasound in the heel. Thus, osteoblast-derived NOTUM is an essential local physiologic regulator of cortical bone mass via effects on periosteal bone formation in adult mice, and genetic variants in the NOTUM locus are associated with BMD variation in adult humans. Therapies targeting osteoblast-derived NOTUM may prevent nonvertebral fractures.-Moverare-Skrtic, S., Nilsson, K. H., Henning, P., Funck-Brentano, T., Nethander, M., Rivadeneira, F., Coletto Nunes, G., Koskela, A., Tuukkanen, J., Tuckermann, J., Perret, C., Souza, P. P. C., Lerner, U. H., Ohlsson, C. Osteoblast-derived NOTUM reduces cortical bone mass in mice and the NOTUM locus is associated with bone mineral density in humans.
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  • Nethander, Maria, 1980-, et al. (författare)
  • Evidence of a Causal Effect of Estradiol on Fracture Risk in Men.
  • 2019
  • Ingår i: The Journal of clinical endocrinology and metabolism. - 1945-7197. ; 104:2, s. 433-442
  • Tidskriftsartikel (refereegranskat)abstract
    • Observational studies indicate that serum estradiol (E2) is more strongly associated with bone mineral density (BMD) than serum testosterone (T) while both E2 and T associate with fracture risk in men.To evaluate the possible causal effect of serum E2 and T on fracture risk in men.A Mendelian Randomization (MR) approach was undertaken using individual-level data of genotypes, BMD as estimated by quantitative ultrasound of the heel (eBMD), fractures (n=17,650), and relevant covariates of 175,583 unrelated men of European origin from the UK Biobank. The genetic instruments for serum E2 and T were taken from the most recent large scale GWAS meta-analyses on these hormones in men.MR analyses demonstrated a causal effect of serum E2 on eBMD and fracture risk. A 1 SD (or 9.6 pg/ml) genetically instrumented decrease in serum E2 was associated with a 0.38 SD decrease in eBMD (p-value 9.7 x 10-74) and an increased risk of any fracture (OR 1.35, 95% CI, 1.18-1.55), non-vertebral major osteoporotic fractures (OR 1.75, 95% CI, 1.35-2.27) and wrist fractures (OR 2.27, 95% CI, 1.62-3.16). These causal effects of serum E2 on fracture risk were robust in sensitivity analyses and remained unchanged in stratified analyses for age, BMI, eBMD, smoking status, and physical activity. MR analyses revealed no evidence of a causal effect of T levels on fracture risk.Our findings provide the first evidence of a robust causal effect of serum E2, but not T, on fracture risk in men.
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