Search results
Results from the WOW.Com Content Network
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.
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 ...
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.
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.
A new study compares the benefits and risks of taking GLP-1 medications for weight loss, including risks of dementia, addiction, heart disease, and gastrointestinal problems, among others.
Pulmonary Arterial Hypertension. Pulmonary arterial hypertension (PAH) is a serious condition that happens when the tiny vessels in your lungs narrow, resulting in high blood pressure.
He eventually left his post at the rehabilitation facility in 2011. “I was stuck in an abstinence model that didn’t work,” Kalfas said. Administrators of the facility “really need to be confronted with their success rates. In AA, the definition of insanity is doing the same thing over and over again and expecting a different result.
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.