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Träfflista för sökning "WFRF:(Hedberg E) srt2:(1995-1999)"

Search: WFRF:(Hedberg E) > (1995-1999)

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  • Alfredson, Håkan, et al. (author)
  • High thigh muscle strength but not bone mass in young horseback-riding females
  • 1998
  • In: Calcified Tissue International. - : Springer. - 0171-967X .- 1432-0827. ; 62:6, s. 497-501
  • Journal article (peer-reviewed)abstract
    • To evaluate whether the type of weight-bearing loading subjected to the skeleton during horseback-riding was associated with differences in bone mass and muscle strength of the thigh, we investigated bone mass and isokinetic muscle strength in 20 female horse riders (age 17.9 +/- 0.6 years) who were riding 7.0 +/- 3.4 hours/week, and 20 nonactive females (age 17.8 +/- 1.1 years). The groups were matched according to age, weight, and height. Areal bone mineral density was measured in total body, head, lumbar spine, right femoral neck, Ward's triangle, and trochanter, the whole dominant and nondominant humerus, and in specific sites in the right femur diaphysis, distal femur, proximal tibia, and tibia diaphysis using dual X-ray absorptiometry. Isokinetic concentric and eccentric peak torque of the quadricep and hamstring muscles were measured using an isokinetic dynamometer. There were no significant differences in bone mass between the horseback riders and nonactives at any site measured. The horse riders were significantly (P < 0.05-0.01) stronger in concentric hamstrings strength at 90 degrees/second and 225 degrees/second and in eccentric quadricep and hamstring strength at 90 degrees/second. Horseback riding in young females is associated with a high muscle strength of the thigh, but not with a high bone mass.
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  • Fang, Hong, et al. (author)
  • Identification of the metallo-beta-lactamase gene from clinical isolates of Bacteroides fragilis
  • 1999
  • In: Anaerobe. - : Elsevier BV. - 1075-9964 .- 1095-8274. ; 5:3-4, s. 431-434
  • Journal article (peer-reviewed)abstract
    • Bacteroides fragilis is one of the organisms known to produce carbapenem-hydrolysing metallo-beta-lactamase, which can confer resistance to a wide variety of beta-lactams. The purpose of this study was to identify carbapenem-hydrolysing metallo-beta-lactamase-producing B. fragilis strains by means of PCR assay, nucleotide sequencing and enzyme inhibition studies. Ten beta-lactam-resistant B. fragilis isolates were investigated. Four imipenem-resistant strains among the 10 isolates gave positive reactions in the PCR assay. The nucleotide sequences of the PCR products from two imipenem-resistant strains shared >98% similarity with the metallo-beta-lactamase gene from B. fragilis TAL 3636, which was used as a control. The amino acid sequence homology between the two imipenem-resistant strains and B. fragilis TAL 3636 was 99.2%. These strains produced high amounts of Zn2+-dependent beta-lactamases which were inactivated by EDTA.
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  • Result 1-10 of 19

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