Rauwolscine hydrochloride
Rauwolscine hydrochloride is an alpha 2-receptor antagonist.
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Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to
24 months(2-8C).
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.
Need more advice on solubility, usage and handling? Please email to: service@chemfaces.com
The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.
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American Journal of Physiology, 1996, 271(4 Pt 2):H1375-83.
Acute stress increases venomotor tone in conscious rats.[Reference:
WebLink]
This study tested the hypothesis that acute psychological stress causes venoconstriction.
METHODS AND RESULTS:
Male Sprague-Dawley rats were instrumented with indwelling catheters in a femoral artery and vein and a balloon-tipped catheter in the right atrium. Mean arterial pressure (MAP), venous pressure, heart rate (HR), and mean circulatory filling pressure (MCFP) were monitored in conscious rats. Air-jet stress was performed before and after treatment with saline, chlorisondamine, phentolamine, or prazosin. Air-jet stress caused MAP, HR, and MCFP to increase by 10 +/- 1 mmHg, 31 +/- 4 beats/min, and 0.95 +/- 0.09 mmHg, respectively. Treatment with either chlorisondamine or phentolamine was equally effective in abolishing the stress-induced increases in MAP, HR, and MCFP. Prazosin treatment abolished the pressor response to air-jet stress but did not significantly affect the HR and MCFP responses. In contrast, pretreatment with the alpha 2-receptor antagonist Rauwolscine hydrochloride abolished both the MAP and MCFP responses to air-jet stress but did not affect the HR response.
CONCLUSIONS:
These findings indicate that venoconstriction is an important component of the cardiovascular response to acute psychological stress. Stress-induced venoconstriction appears to be mediated primarily via the alpha 2-receptor subtype.
