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- W2017997997 abstract "<b><i>Objective:</i></b> To study the therapeutic effect and mechanism of action of 3,4-DL-threo-dihydroxyphenylserine (DL-DOPS) in neurogenic orthostatic hypotension. <b><i>Methods:</i></b> The blood pressure (BP) response to an orthostatic challenge on DL-DOPS was compared with that of placebo in a randomized, double-blind, placebo-controlled, crossover trial in 10 patients. The mechanism of action of DOPS was studied by measuring forearm vascular resistance and changes in supine and upright plasma DL-DOPS and norepinephrine levels. The effect of DL-DOPS on the quality of life was determined by questionnaire. <b><i>Results:</i></b> DL-DOPS increased the supine (<i>p</i> < 0.001) and upright (<i>p</i> < 0.05) systolic blood pressure (SBP) and diastolic blood pressure (DBP) (both <i>p</i> < 0.01). The peak SBP on DL-DOPS in the supine position occurred 300 minutes after ingestion of the medication. The increase in BP was accompanied by an increase in plasma levels of norepinephrine and DL-DOPS in both the supine and upright positions after DL-DOPS ingestion (<i>p</i> < 0.0001). There was a trend toward improvement in symptoms of orthostatic intolerance. <b><i>Conclusion:</i></b> DL-DOPS improved features of neurogenic orthostatic hypotension in patients with central and peripheral autonomic nervous system disease. There was an increase in plasma norepinephrine. No major side effects occurred." @default.
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- W2017997997 title "The treatment of neurogenic orthostatic hypotension with 3,4-DL-threo-dihydroxyphenylserine: A randomized, placebo-controlled, crossover trial" @default.
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- W2017997997 doi "https://doi.org/10.1212/wnl.53.9.2151" @default.
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