Botox  has become popular for reducing wrinkles.  It is a dilute solution of a toxin which inhibits muscle contraction by working at the  presynaptic portion of the NMJ. Which of the following could be a possible mechanism for Botox wrinkle-reducing action? a.) Increase Calcium influx b.) Cleave (degrade) syntaxin c.) Increase sensitivity of synaptotagmin to Ca d.) Decrease synthesis of nSec1

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
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Botox  has become popular for reducing wrinkles.  It is a dilute solution of a toxin which inhibits muscle contraction by working at the  presynaptic portion of the NMJ. Which of the following could be a possible mechanism for Botox wrinkle-reducing action?

a.) Increase Calcium influx

b.) Cleave (degrade) syntaxin

c.) Increase sensitivity of synaptotagmin to Ca

d.) Decrease synthesis of nSec1

Expert Solution
Step 1

Botox injections block specific chemical signals from nerves, for the most part signals prompt muscles to contract. The most well-known utilization of these injections is to briefly loosen up the facial muscles that cause wrinkles in the forehead and around the eyes.

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