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5-Hydroxytryptophan: Difference between revisions
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==Toxicity and harm potential== | ==Toxicity and harm potential== | ||
Due to the conversion of 5-HTP into serotonin by the liver, with prolonged use, there may be a significant risk of heart valve disease from serotonin's effect on the heart, which is thought to be due to agonism of the | Due to the conversion of 5-HTP into serotonin by the liver, with prolonged use, there may be a significant risk of heart valve disease from serotonin's effect on the heart, which is thought to be due to agonism of the 5-HT<sub>2B</sub> receptor present on it.<ref>https://www.ncbi.nlm.nih.gov/pubmed/15781732 | Long-term serotonin administration induces heart valve disease in rats.</ref><ref>https://www.ncbi.nlm.nih.gov/pubmed/12466135 | Serotonin mechanisms in heart valve disease II: the 5-HT2 receptor and its signaling pathway in aortic valve interstitial cells.</ref> | ||
It has been suggested that 5-HTP may cause eosinophilia-myalgia syndrome (EMS), a serious condition which results in extreme muscle tenderness, myalgia, and blood abnormalities. However, there is evidence to show that EMS was likely caused by a contaminant in certain 5-HTP supplements instead of the drug itself.<ref>https://www.ncbi.nlm.nih.gov/pubmed/7699627 | An eosinophilia-myalgia syndrome related disorder associated with exposure to L-5-hydroxytryptophan.</ref> | It has been suggested that 5-HTP may cause eosinophilia-myalgia syndrome (EMS), a serious condition which results in extreme muscle tenderness, myalgia, and blood abnormalities. However, there is evidence to show that EMS was likely caused by a contaminant in certain 5-HTP supplements instead of the drug itself.<ref>https://www.ncbi.nlm.nih.gov/pubmed/7699627 | An eosinophilia-myalgia syndrome related disorder associated with exposure to L-5-hydroxytryptophan.</ref> | ||