منابع مشابه
5-HTP efficacy and contraindications
L-5-hydroxytryptophan (5-HTP) is the immediate precursor of serotonin. It is readily synthesized into serotonin without biochemical feedback. This nutrient has a large and strong following who advocate exaggerated and inaccurate claims relating to its effectiveness in the treatment of depression and a number of other serotonin-related diseases. These assertions are not supported by the science....
متن کاملChanges in cortical 5-HT2 receptors following 5-HTP and paroxetine administration in rats.
Rats were pretreated with either carbidopa (25 mg/kg 30 min previously) or phenelzine (50 mg/kg 18 h and 12 mg/kg 90 min previously) before being given 5-HTP (150 or 350 mg/kg) or paroxetine (12 mg/kg). In carbidopa-treated animals, 5-HTP (150 mg/kg) evoked many wet-dog shakes (WDS) without changing receptor numbers, but an increase in the dose of 5-HTP to 350 mg/kg paradoxically increased the ...
متن کاملThe effect of DL-5-hydroxytryptophan (5-HTP) on plasma prolactin in pituitary stalk sectioned rats.
5-HTP (5 mg/100 g body weight), a precursor of serotonin, was administered intravenously to pituitary stalk sectioned rats. Plasma prolactin levels were initially increased 30 and 60 min after the injection of 5-HTP and thereafter decreased. Pituitary prolactin content was decreased 60 min after the stalk section as compared to those seen following sham operation. The treatment of 5-HTP induced...
متن کاملEffect of hypothalamic surgery on prolactin release induced by 5-hydroxytryptophan (5-HTP) in rats.
Intravenous injections of varying doses of 5-HTP (1, 3 and 5 mg/100 g body wt), a precursor of serotonin, caused a significant and dose-related increase in plasma prolactin concentrations in urethane-anesthetized rats. Increases in plasma prolactin concentrations caused by 5-HTP (1 mg/100 g body wt iv) were abolished by the concomitant administration of L-DOPA (2 mg/100 g body wt iv). Plasma pr...
متن کاملColonoscopy — Indications and Contraindications
This chapter discusses some of the major indications and contraindications for colonoscopy. Advances in colonoscopic techniques have expanded the role of colonoscopy beyond conventional screening, surveillance, and diagnosis to various complex therapeutic and interventional utilities. Several guidelines with new information are being published and updated regularly in the field of colonoscopy a...
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ژورنال
عنوان ژورنال: Neuropsychiatric Disease and Treatment
سال: 2012
ISSN: 1176-6328
DOI: 10.2147/ndt.s33259