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Träfflista för sökning "swepub ;srt2:(1990-1994)"

Sökning: swepub > (1990-1994)

  • Resultat 24071-24080 av 30759
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24071.
  • Sandstedt, J, et al. (författare)
  • Disproportional bone growth and reduced weight gain in gonadectomized male bovine growth hormone transgenic and normal mice.
  • 1994
  • Ingår i: Endocrinology. - 0013-7227. ; 135:6, s. 2574-80
  • Tidskriftsartikel (refereegranskat)abstract
    • Sex steroids have been shown to influence longitudinal bone growth during sexual maturation, partially by increased GH secretion. Mice transgenic for metallothionein promoter bovine GH were developed by pronuclear injection as a model with sex steroid-independent GH secretion. Prepubertal normal and transgenic, male and female mice were either gonadectomized or sham operated. The growth was divided into two segments: peripubertal growth from 30-60 days of age and adult growth from 60-90 days of age. Orchidectomy resulted in a decreased growth rate of the lumbar spine and a decreased weight gain during the peripubertal growth, whereas tibia growth was unaffected. The alteration in proportions between the lumbar spine and the tibia was apparent for both normal and bovine GH transgenic mice, suggesting that the effect was not mediated via decreased GH secretion. Orchidectomy resulted in increased adult tibial growth, whereas weight gain and lumbar growth were unaffected. In female mice, gonadectomy did not influence these parameters during either time period studied. In summary, we present data indicating that the male gonads in a GH secretion-independent manner stimulate pubertal growth of the spine and inhibit the tibial growth of adult animals.
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24072.
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24073.
  • Sarafoglou, Nikias, 1954, et al. (författare)
  • Myrdal forfarande mest citerad
  • 1992
  • Ingår i: Ekonomisk Debatt. - 0345-2646. ; 20:3, s. 229-232
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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24074.
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24075.
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24076.
  • Scaglia, M, et al. (författare)
  • [The functional and manometric results of 2 surgical methods of posterior abdominal rectopexy]. : Risultati funzionali e manometrici di due metodi chirurgici di rettopessi addominale posteriore.
  • 1994
  • Ingår i: Minerva chirurgica. - 0026-4733. ; 49:5, s. 383-92
  • Tidskriftsartikel (refereegranskat)abstract
    • Functional changes after posterior abdominal rectopexy for the treatment of rectal prolapse are not fully understood. We studied the effects of Wells' or Ripstein's rectopexy on functional characteristics as related to anal sphincter function, rectal volume and sensory function in 31 patients with complete or internal rectal prolapse. We have observed an improvement of continence over 70% in both groups. However, an absent or a decreased call to stool, constipation and evacuation difficulties are the aftermath of Wells' rectopexy, while these complaints appear basically unaffected by Ripstein's technique. Maximal squeeze pressure was slightly increased after Ripstein's rectopexy, whereas no significant effects were found on anal pressures. Postoperatively the rectal capacity was reduced by Well's procedure (p < 0.05), while no significant changes were observed with Ripstein's operation. After the Wells procedure patients developed at the threshold for the relaxation of the internal sphincter progressively lower rectal volumes, reaching one year after rectopexy the statistical significance. Sensory thresholds for sense of filling and urge were significantly raised after Wells' rectopexy even one year after operation, whereas after Ripstein's operation sense of filling was not significantly affected and while sense of urge was increased early postoperatively, it was not significantly changed at one hear postoperative control. In conclusion, when fecal incontinence appears associated to a rectal prolapse has good chances to improve postoperatively. Preoperative evacuation difficulties seem to be unaffected by a posterior abdominal rectopexy, Wells or Ripstein, but an extensive dissection of the rectum with the division of the lateral stalks, as it is performed in Wells' operation, seems to be a procedure that can create a further burden of problems the the patient and it seems coupled to a manovolumetric elevation of rectal sensory thresholds.
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24077.
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24078.
  • Schiller, Stefan, 2000, et al. (författare)
  • Managing Maintenance in Automated Production
  • 1992
  • Ingår i: Paper presented at the First International Federation of Scholarly Associations of Management (IFSM)Conference Tokyo, September 7-9 1992..
  • Konferensbidrag (refereegranskat)
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24079.
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24080.
  • Schwab, U E, et al. (författare)
  • Increased adherence of Staphylococcus aureus from cystic fibrosis lungs to airway epithelial cells.
  • 1993
  • Ingår i: The American review of respiratory disease. - 0003-0805. ; 148:2, s. 365-9
  • Tidskriftsartikel (refereegranskat)abstract
    • Airway colonization by Staphylococcus aureus is a frequent feature of cystic fibrosis (CF). To assess the pathogenesis of selective colonization with this organism, we compared the capacity of S. aureus isolated from the respiratory tract of CF and non-CF patients to adhere to epithelial cells from the upper and lower airways of CF and control subjects. Bacterial adherence to bronchial epithelial cell lines was significantly greater for CF than for non-CF isolates (p < 0.001). Of 17 CF S. aureus isolates 12 adhered at a level > 1 bacterium per cell; this was true for only 1 of 14 non-CF isolates. CF S. aureus isolates also bound more avidly than non-CF isolates to ciliated (p < 0.05) and squamous nasal cells (p < 0.02) and buccal epithelial cells (p < 0.005) freshly harvested by scraping. Each S. aureus isolate bound with equal avidity to epithelial cells from CF patients and healthy individuals. Adherence was not related to sex, age, severity of pulmonary disease, presence of other microorganisms in the airways, or genotype of the CF hosts. Binding of S. aureus was blocked by proteinase treatment of organisms, suggesting that adherence is mediated by one or more peptide adhesins. We propose that the high prevalence of adherent S. aureus is due either to selection of adherent strains by CF airways or to induction of an adherent phenotype by factors residing at the CF airways surface.
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