In the 1990s, Drug Users Started Developing Parkinson's Like Symptoms

question 13

Multiple Choice

In the 1990s, drug users started developing Parkinson's like symptoms. It was found that a contaminant, called MPTP, was in an opioid-like drug. How does MPTP cause Parkinson's like symptoms?

• A) MPP⁺ inhibits mitochondrial function in dopaminergic neurons.
• B) MPTP inhibits mitochondrial function in dopaminergic neurons.
• C) MPTP increases the enzymatic activity of monoamine oxidase with increases the number of free radicals in dopaminergic neurons.
• D) MPP⁺ blocks the release in dopamine from dopaminergic neurons, specifically from the substantia nigra.

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Definitions:

Lower-Of-Cost-Or-Market

An accounting principle that values inventory at the lesser of its historical cost or the market replacement cost, ensuring inventory is not overstated.

Inventory Valuation

The method used to calculate the cost associated with an inventory, which can impact the cost of goods sold and net income.

Net Income

The total profit of a company after all expenses and taxes have been deducted from revenue, indicating the company's actual financial performance over a specific period.

Rapidly Rising Costs

A situation where the expenses associated with producing goods or services increase at a faster pace than usual, affecting profitability.