L-dopa's efficacy in the treatment of Parkinson's disease decreases after a few years of treatment because
a. as the patient gets older plasma concentrations may increase too fast and produce motor disturbances and adverse psychic effects
b. as the patient gets older plasma concentrations may fall too quickly, allowing the disease symptoms to suddenly appear
c. of continued progression of the underlying cause of the disease
d. all of the above
Question 2
In normal adult humans, alertness, decreased fatigue, improved ability to concentrate, and elevated mood are likely to be observed following administration of low doses of
a. amphetamine
b. cocaine
c. nicotine
d. all of these
Acromegaly. Acromegaly is a metabolic disorder in which excessive amounts of growth hormone are secr
The Upper Cave at Zhoukoudian yields ages of about 25,000 years for Homo sapiens.
Inverse Relation Between IQ and Disease. Could this explain the Flynn effect?
Drugs Used in the Treatment of Peptic Ulcer Disease (PUD) and GERD
Classification of Antidepressants: Treatment of Major Depressive Disorder
Location of brain lesions in Alzheimer disease. Plaques are concentrated most heavily in the amygdal