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Träfflista för sökning "WFRF:(Jarvinen H) ;pers:(Kannisto K)"

Sökning: WFRF:(Jarvinen H) > Kannisto K

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  • Sutinen, J, et al. (författare)
  • Effects of rosiglitazone on gene expression in subcutaneous adipose tissue in highly active antiretroviral therapy-associated lipodystrophy
  • 2004
  • Ingår i: American journal of physiology. Endocrinology and metabolism. - : American Physiological Society. - 0193-1849 .- 1522-1555. ; 286:6, s. E941-E949
  • Tidskriftsartikel (refereegranskat)abstract
    • Highly active antiretroviral therapy (HAART) has improved the prognosis of human immunodeficiency virus (HIV)-infected patients but is associated with severe adverse events, such as lipodystrophy and insulin resistance. Rosiglitazone did not increase subcutaneous fat in patients with HAART-associated lipodystrophy (HAL) in a randomized, double-blind, placebo-controlled trial, although it attenuated insulin resistance and decreased liver fat content. The aim of this study was to examine effects of rosiglitazone on gene expression in subcutaneous adipose tissue in 30 patients with HAL. The mRNA concentrations in subcutaneous adipose tissue were measured using real-time PCR. Twenty-four-week treatment with rosiglitazone (8 mg/day) compared with placebo significantly increased the expression of adiponectin, peroxisome proliferator-activated receptor-γ (PPARγ), and PPARγ coactivator 1 and decreased IL-6 expression. Expression of other genes involved in lipogenesis, fatty acid metabolism, or glucose transport, such as acyl-CoA synthase, adipocyte lipid-binding protein, CD45, fatty acid transport protein-1 and -4, GLUT1, GLUT4, keratinocyte lipid-binding protein, lipoprotein lipase, PPARδ, and sterol regulatory element-binding protein-1c, remained unchanged. Rosiglitazone also significantly increased serum adiponectin concentration. The change in serum adiponectin concentration was inversely correlated with the change in fasting serum insulin concentration and liver fat content. In conclusion, rosiglitazone induced significant changes in gene expression in subcutaneous adipose tissue and ameliorated insulin resistance in patients with HAL. Increased expression of adiponectin might have mediated most of the favorable insulin-sensitizing effects of rosiglitazone in these patients.
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  • Sevastianova, K, et al. (författare)
  • Adipose tissue inflammation and liver fat in patients with highly active antiretroviral therapy-associated lipodystrophy
  • 2008
  • Ingår i: American journal of physiology. Endocrinology and metabolism. - : American Physiological Society. - 0193-1849 .- 1522-1555. ; 295:1, s. E85-E91
  • Tidskriftsartikel (refereegranskat)abstract
    • In this cross-sectional study, we sought to determine whether gene expression of macrophage markers and inflammatory chemokines in lipoatrophic subcutaneous abdominal adipose tissue and liver fat content are increased and interrelated in human immunodeficiency virus (HIV)-1-positive, highly active antiretroviral therapy (HAART)-treated patients with lipodystrophy (HAART+LD+; n = 27) compared with those without (HAART+LD−; n = 13). The study groups were comparable with respect to age, gender, and body mass index. The HAART+LD+ group had twofold more intra-abdominal ( P = 0.01) and 1.5-fold less subcutaneous ( P = 0.091) fat than the HAART+LD− group. As we have reported previously, liver fat was 10-fold higher in the HAART+LD+ compared with the HAART+LD− group ( P = 0.00003). Inflammatory gene expression was increased in HAART-lipodystrophy: CD68 4.5-fold ( P = 0.000013), tumor necrosis factor (TNF)-α 2-fold ( P = 0.0094), chemokine (C-C motif) ligand (CCL) 2 2.5-fold ( P = 0.0024), CCL3 7-fold ( P = 0.0000017), integrin αM (ITGAM) 3-fold ( P = 0.00067), epidermal growth factor-like module containing, mucin-like, hormone receptor-like (EMR)1 2.5-fold ( P = 0.0038), and a disintegrin and metalloproteinase domain (ADAM)8 3.5-fold ( P = 0.00057) higher in the HAART+LD+ compared with the HAART+LD− group. mRNA concentration of CD68 ( r = 0.37, P = 0.019), ITGAM ( r = 0.35, P = 0.025), CCL2 ( r = 0.39, P = 0.012), and CCL3 ( r = 0.54, P = 0.0003) correlated with liver fat content. In conclusion, gene expression of markers of macrophage infiltration and adipose tissue inflammation is increased in lipoatrophic subcutaneous abdominal adipose tissue of patients with HAART-associated lipodystrophy compared with those without. CD68, ITGAM, CCL2, and CCL3 expression is significantly associated with accumulation of liver fat.
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