
Concept explainers
(1)
To determine:
What Botox is; how the cosmetic botulism toxin works; whether the treated muscles will be permanently frozen if the actor can get a systemic botulism infection from the treatment; and what caused the eyelids to sag.
Case summary:
In the given scenario, a 55-year old actor, concerned about maintaining his star status, wanted to remove the frown lines on his forehead. He asked his dermatologist about a cosmetic treatment to relax his facial lines and the dermatologist explained about the risks and benefits of Botox. The actor decided to have the treatment. Two weeks following the treatment, it was reported that his eyelids were sagging.
(2)
To determine:
How the cosmetic botulism toxin work.
Case summary:
In the given scenario, a 55-year old actor, concerned about maintaining his star status, wanted to remove the frown lines on his forehead. He asked his dermatologist about a cosmetic treatment to relax his facial lines and the dermatologist explained about the risks and benefits of Botox. The actor decided to have the treatment. Two weeks following the treatment, it was reported that his eyelids were sagging.
(3)
To determine:
Whether the treated muscles will be temporarily frozen.
Case summary:
In the given scenario, a 55-year old actor, concerned about maintaining his star status, wanted to remove the frown lines on his forehead. He asked his dermatologist about a cosmetic treatment to relax his facial lines and the dermatologist explained about the risks and benefits of Botox. The actor decided to have the treatment. Two weeks following the treatment, it was reported that his eyelids were sagging.
(4)
To determine:
If the actor can get a systemic botulism infection from the treatment.
Case summary:
In the given scenario, a 55-year old actor, concerned about maintaining his star status, wanted to remove the frown lines on his forehead. He asked his dermatologist about a cosmetic treatment to relax his facial lines and the dermatologist explained about the risks and benefits of Botox. The actor decided to have the treatment. Two weeks following the treatment, it was reported that his eyelids were sagging.
(5)
To determine:
What caused the eyelids to sag.
Case summary:
In the given scenario, a 55-year old actor, concerned about maintaining his star status, wanted to remove the frown lines on his forehead. He asked his dermatologist about a cosmetic treatment to relax his facial lines and the dermatologist explained about the risks and benefits of Botox. The actor decided to have the treatment. Two weeks following the treatment, it was reported that his eyelids were sagging.

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Chapter 20 Solutions
Pearson eText Bauman Microbiology with Diseases by Body Systems -- Instant Access (Pearson+)
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- The following figure is from Caterina et al. The capsaicin receptor: a heat activated ion channel in the pain pathway. Nature, 1997. Black boxes indicate capsaicin, white circles indicate resinferatoxin. a) Which has a higher potency? b) Which is has a higher efficacy? c) What is the approximate Kd of capsaicin in uM? (you can round to the nearest power of 10)arrow_forwardWhat is the rate-limiting-step for serotonin synthesis?arrow_forwardWhat enzyme is necessary for synthesis of all of the monoamines?arrow_forward
- Medical Terminology for Health Professions, Spira...Health & NutritionISBN:9781305634350Author:Ann Ehrlich, Carol L. Schroeder, Laura Ehrlich, Katrina A. SchroederPublisher:Cengage Learning
