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Tachyphylaxis is characterized by the rate sensitivity: the response of the system depends on the rate with which a stimulus is presented. To be specific, a high-intensity prolonged stimulus or often-repeated stimulus may bring about a diminished response also known as desensitization.
Homologous desensitization occurs when a receptor decreases its response to an agonist at high concentration. [1] It is a process through which, after prolonged agonist exposure, the receptor is uncoupled from its signaling cascade and thus the cellular effect of receptor activation is attenuated.
In medicine, desensitization is a method to reduce or eliminate an organism's negative reaction to a substance or stimulus. In pharmacology , drug desensitization refers to two related concepts. First, desensitization may be equivalent to drug tolerance and refers to subjects' reactions (positive or negative) to a drug reducing following its ...
Homologous desensitization also occurs with cytokine and other types of receptors, such as those of the epidermal growth factor receptor type, but in these cases desensitization is mediated by other types of receptor kinases. [2] Homologous desensitization serves to limit or restrain a cell's responses to stimuli.
Drug tolerance or drug insensitivity is a pharmacological concept describing subjects' reduced reaction to a drug following its repeated use. Increasing its dosage may re-amplify the drug's effects; however, this may accelerate tolerance, further reducing the drug's effects.
The allure of multitasking is hard to ignore. Of course it sounds like a great idea to take that meeting from the car, or to have Real Housewives on “in the background” while you work, or to ...
Move over, Wordle, Connections and Mini Crossword—there's a new NYT word game in town! The New York Times' recent game, "Strands," is becoming more and more popular as another daily activity ...
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