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    Clin Exp Hypertens. 2009 May;31(3):208-19.

    Plasminogen activator inhibitor-1 and the circadian clock in metabolic disorders.

    Source

    Clock Cell Biology Research Group, Institute for Biological Resources and Functions, National Institute of Advanced Industrial Science and Technology, Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki, Japan. k-ooishi@aist.go.jp

    Abstract

    Plasma PAI-1 levels robustly fluctuate in a circadian manner and consequently contribute to hypofibrinolysis during the early morning. The circadian expression of PAI-1 gene is thought to be directly regulated by the circadian clock proteins such as CLOCK and BMAL1/BMAL2 which drive the endogenous biological clock. Plasma PAI-1 levels are increased in the beginning of the active phase in both diurnal humans and in nocturnal rodents, suggesting that the rhythmic PAI-1 expression is commonly indispensable for organisms. A series of our recent studies revealed that circadian clock proteins are important for hypofibrinolysis induced by metabolic disorders such as obesity and diabetes.

    PMID:
    19387897
    [PubMed - indexed for MEDLINE]

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