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Sökning: WFRF:(Mansten Alva)

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1.
  • Karbalaei, Mardjaneh, et al. (författare)
  • Impaired contractility and detrusor hypertrophy in cavin-1-deficient mice.
  • 2012
  • Ingår i: European Journal of Pharmacology. - : Elsevier BV. - 1879-0712 .- 0014-2999. ; 689:1-3, s. 179-185
  • Tidskriftsartikel (refereegranskat)abstract
    • Caveolae are membrane invaginations present in a variety of cell types. Formation of caveolae depends on caveolins and on the more recently discovered family of proteins known as the cavins. Genetic ablation of caveolin-1 was previously shown to give rise to a number of urogenital alterations, but the effects of cavin-1 deletion on urogenital function remain unknown. Here we characterized detrusor contractility and structure in cavin-1-deficient mice. Electron microscopy demonstrated essentially complete lack of caveolae in the knock-out detrusor, and immunoblotting disclosed reduced levels of cavin-3 and of all caveolin proteins. Bladder weight was increased in male knock-out mice, and length-tension relationships demonstrated a reduction in depolarisation-induced contraction. Contractility in response to muscarinic receptor activation was similarly reduced. Despite these functional changes, micturition patterns were similar in conscious and freely moving animals and diuresis was unchanged. Our breeding additionally disclosed that the number of knock-out mice generated in heterozygous crosses was lower than expected, suggesting embryonic/perinatal lethality. In conclusion, this is the first study to show that cavin-1 is critical for detrusor caveolae and for the overall contractility and structure of the urinary bladder.
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2.
  • Minarik, David, et al. (författare)
  • Perfusion vector-a new method to quantify myocardial perfusion scintigraphy images: a simulation study with validation in patients.
  • 2015
  • Ingår i: EJNMMI Research. - : Springer Science and Business Media LLC. - 2191-219X. ; 5
  • Tidskriftsartikel (refereegranskat)abstract
    • The interpretation of myocardial perfusion scintigraphy (MPS) largely relies on visual assessment by the physician of the localization and extent of a perfusion defect. The aim of this study was to introduce the concept of the perfusion vector as a new objective quantitative method for further assisting the visual interpretation and to test the concept using simulated MPS images as well as patients.
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