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- W3175263785 abstract "There is correlative evidence that impaired cerebral blood flow (CBF) regulation, in addition to promoting cognitive impairment, is also associated with alterations in gait and development of falls in elderly people. CBF is adjusted to neuronal activity via neurovascular coupling (NVC) and this mechanism becomes progressively impaired with age. To establish a direct cause and effect relationship between impaired NVC and gait abnormalities, we induced neurovascular uncoupling pharmacologically in young C57BL/6 mice by inhibiting the synthesis of vasodilator mediators involved in NVC. Treatment of mice with the epoxygenase inhibitor MSPPOH, the NO synthase inhibitor L-NAME and the COX inhibitor indomethacin significantly decreased NVC mimicking the aging phenotype. Pharmacologically-induced neurovascular uncoupling significantly decreased the dynamic gait parameter duty cycle, altered footfall patterns and significantly increased phase dispersion, indicating impaired interlimb coordination. Impaired NVC also tended to increase gait variability. Thus, selective experimental disruption of NVC causes subclinical gait abnormalities, supporting the importance of CBF in both cognitive function and gait regulation. Support or Funding Information This work was supported by grants from the American Heart Association, the National Center for Complementary and Alternative Medicine, and the National Institute on Aging This abstract is from the Experimental Biology 2018 Meeting. There is no full text article associated with this abstract published in The FASEB Journal." @default.
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- W3175263785 date "2018-04-01" @default.
- W3175263785 modified "2023-10-16" @default.
- W3175263785 title "Pharmacologically‐induced impairment of neurovascular coupling responses alters gait coordination in mice" @default.
- W3175263785 doi "https://doi.org/10.1096/fasebj.2018.32.1_supplement.711.9" @default.
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