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Sökning: WFRF:(Akerlund C)

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  • Bengtsson, T, et al. (författare)
  • Loss of alpha 10 beta 1 integrin expression leads to moderate dysfunction of growth plate chondrocytes
  • 2005
  • Ingår i: Journal of Cell Science. - : The Company of Biologists. - 0021-9533 .- 1477-9137. ; 118:5, s. 929-936
  • Tidskriftsartikel (refereegranskat)abstract
    • Integrin alpha 10 beta 1 is a collagen-binding integrin expressed on chondrocytes. In order to unravel the role of the alpha 10 integrin during development, we generated mice carrying a constitutive deletion of the alpha 10 integrin gene. The mutant mice had a normal lifespan and were fertile but developed a growth retardation of the long bones. Analysis of the skeleton revealed defects in the growth plate after birth characterized by a disturbed columnar arrangement of chondrocytes, abnormal chondrocyte shape and reduced chondrocyte proliferation. Electron microscopy of growth plates from newborn mice revealed an increased number of apoptotic chondrocytes and reduced density of the collagen fibrillar network compared to these structures in control mice. These results demonstrate that integrin alpha 10 beta 1 plays a specific role in growth plate morphogenesis and function.
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  • Emek, Sinan C, et al. (författare)
  • A large scale method for preparation of plant thylakoids for use in body weight regulation.
  • 2010
  • Ingår i: Preparative biochemistry & biotechnology. - : Informa UK Limited. - 1532-2297 .- 1082-6068. ; 40:1, s. 13-27
  • Tidskriftsartikel (refereegranskat)abstract
    • A method for preparation of thylakoids from plant leaves on a large scale is described. The method involves: 1) disruption of the cells with a blender followed by filtration to remove large cell debris and non disrupted cells. 2) precipitation of the thylakoids by adjusting the pH to the isoelectric point, pH 4.7. 3) a washing step by dilution of the precipitate in water followed by precipitation at the same pH. 4) concentration of the precipitate by freeze- thawing or freeze -drying to get the final product. The product is characterized, with respect to protein composition, by SDS-PAGE and mass-spectroscopy, the content of carotenoids, particularly the xanthophylls violaxanthin, antheraxanthin, and zeaxanthin. The thylakoid preparation has about the same capacity to inhibit pancreatic lipase/colipase activity as thylakoids prepared by standard laboratory methods using sucrose in the medium and centrifugation. In a study with mice, it was found that, when the thylakoids were added to the food over 32 days, they significantly reduced the body weight gain and the percentage body fat. The large scale method described here allows studies on the effect of thylakoids in appetite regulation on experimental animals in a longer lasting time and also on humans.
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  • Resultat 1-21 av 21

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