The site of absorption matters: Small bowel dysmotility and levodopa pharmacokinetics in Parkinson's disease.
The site of absorption matters: Small bowel dysmotility and levodopa pharmacokinetics in Parkinson's disease.
Where did the research take place?
The study site has not been established. Author addresses may differ from where the research occurred.
New York City, US · Author affiliation
New York University, New York, NY, USA.Location evidence
Salt Lake City, US · Author affiliation
University of Utah, Salt Lake City, UT, USA.Location evidence
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Original abstract
Plain language summaryLooking Past the Stomach to the Small Intestine to Explain Unreliable Parkinson's Medication AbsorptionPeople with Parkinson's Disease (PD) rely on the medication levodopa to move well, but over time it often works unpredictably. Doctors usually blame the stomach, which can empty too slowly in Parkinson's, a condition called gastroparesis. However, levodopa is absorbed not in the stomach but one step further along, in the small intestine. In this letter we argue that slow movement through the small intestine, which standard stomach tests cannot detect, may be the real cause. One author had a normal stomach test but a very slow small intestine. The small intestine deserves far more attention when medication fails.