Effect Of Elevated Local Temperature On Cutaneous Vasoconstrictor Responsiveness In Humans
نویسندگان
چکیده
منابع مشابه
Effect of elevated local temperature on cutaneous vasoconstrictor responsiveness in humans.
Cutaneous vascular conductance (CVC) increases in response to local skin heating. Although attenuation of vasoconstrictor responsiveness due to local heating has been demonstrated, the mechanism(s) responsible for this attenuation remains unclear. Nitric oxide has been shown to at least partially contribute to this response, but other mechanisms also may be involved. The purpose of this study w...
متن کاملEffect of age on cutaneous vasoconstrictor responses to norepinephrine in humans.
To test the hypothesis that cutaneous vasoconstrictor responsiveness to exogenous norepinephrine is reduced in older compared with young subjects, dose-response relations between norepinephrine and skin blood flow were established. Seven doses of norepinephrine (1.10(-8) to 10(-2) log M) were perfused (2 microl/min) intradermally (4 min/dose) using cutaneous microdialysis (2 probes/subject). To...
متن کاملRole of sensory nerves in the cutaneous vasoconstrictor response to local cooling in humans.
Local cooling (LC) causes a cutaneous vasoconstriction (VC). In this study, we tested whether there is a mechanism that links LC to VC nerve function via sensory nerves. Six subjects participated. Local skin and body temperatures were controlled with Peltier probe holders and water-perfused suits, respectively. Skin blood flow at four forearm sites was monitored by laser-Doppler flowmetry with ...
متن کاملCutaneous vasoconstrictor responses to norepinephrine are attenuated in older humans.
Cutaneous vasoconstriction (VC) in response to cooling is impaired with human aging. On the basis of previous findings that older humans rely predominantly on norepinephrine (NE) for reflex VC of skin blood vessels, and that the VC effects of NE are blunted with age in many vascular beds, we tested the hypothesis that cutaneous VC responses to exogenous NE are attenuated in aged skin compared w...
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ژورنال
عنوان ژورنال: Medicine & Science in Sports & Exercise
سال: 2009
ISSN: 0195-9131
DOI: 10.1249/01.mss.0000355590.94437.e2