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Sökning: WFRF:(Dashwood M.)

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  • Dahm, Peter L., et al. (författare)
  • Binding of [3H]-5-hydroxytryptamine to human coronary artery and bypass graft vessels
  • 1996
  • Ingår i: Cardiovascular Research. - 1755-3245. ; 31:5, s. 800-806
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVES: 5-Hydroxytryptamine (5-HT) has a wide range of vascular effects mediated via specific receptors and it has been suggested to be a mediator in ischemic heart disease. The aim of the present study was to localise the 5-HT receptors within the vessel wall. METHODS: Epicardial coronary arteries obtained from patients undergoing cardiac transplantation, internal mammary arteries from heart donors and saphenous veins from patients undergoing coronary bypass surgery, were sectioned and incubated with [3H]-5-HT for in vitro receptor autoradiography. RESULTS: Microscopic analysis of high resolution autoradiographic images revealed a similar pattern of [3H]-5-HT binding in epicardial coronary and internal mammary artery, where it predominated in the lamina muscularis. In the saphenous vein, binding increased towards the adventitia which showed dense, displaceable binding to the vasa vasorum as well as to nerve-like structures, from which binding was only partially displaced. Computer-assisted densitometric analysis of low resolution autoradiographs revealed a high degree of specific binding to all vessels examined. CONCLUSIONS: The distribution of the [3H]-5-HT binding is different in the saphenous vein compared to epicardial coronary and internal mammary artery. The dense binding to vasa vasorum in the saphenous vein suggests a role for 5-HT in closure of these nutrient vessels, which could contribute to the formation of atherosclerotic changes in saphenous vein grafts.
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  • Shen, Lei, et al. (författare)
  • Adiponectin : An Endothelium-Derived Vasoprotective Factor?
  • 2016
  • Ingår i: Current Vascular Pharmacology. - : Bentham Science Publishers. - 1570-1611 .- 1875-6212. ; 14:2, s. 168-174
  • Tidskriftsartikel (refereegranskat)abstract
    • Adipose tissue (AT) is now widely accepted as a key secretary organ, as well as an energy storage depot. It secretes a series of cytokines, hormones and bioactive molecules: adipokines. Adiponectin is an abundant systemic adipokine that uniquely is reduced in obesity and increases on weight loss, is anti-inflammatory, promotes insulin sensitivity and affords cardiometabolic protection. It was considered a true adipokine, in that it is exclusively generated by the adipocytes of the adipose tissue. However, recent evidence points to it being secreted by a range of other organs. This review summarizes the non-adipose sources of adiponectin especially that derived from the endothelium, its vasoprotective role and intracellular signalling pathways. Endothelium derived adiponectin may potentially be a new target for clinical intervention in cardiovascular disease.
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  • Resultat 1-6 av 6

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