Find the indicated limit, if it exists. Otherwise, answer no solution. 
Definitions:
Prostaglandins
A group of lipid compounds that have diverse hormone-like effects, including mediating inflammation and pain.
Epinephrine
A hormone and neurotransmitter, also known as adrenaline, that increases heart rate, muscle strength, blood pressure, and sugar metabolism.
Intracellular Mediator
Substances, often proteins or second messengers, within cells that transduce signals leading to various cellular responses.
Hormone Response
The body's reaction to various hormones, which are chemical messengers that regulate processes in our body.
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