dihydroxyphenylalanine has been researched along with Tachycardia in 8 studies
Dihydroxyphenylalanine: A beta-hydroxylated derivative of phenylalanine. The D-form of dihydroxyphenylalanine has less physiologic activity than the L-form and is commonly used experimentally to determine whether the pharmacological effects of LEVODOPA are stereospecific.
dopa : A hydroxyphenylalanine carrying hydroxy substituents at positions 3 and 4 of the benzene ring.
Tachycardia: Abnormally rapid heartbeat, usually with a HEART RATE above 100 beats per minute for adults. Tachycardia accompanied by disturbance in the cardiac depolarization (cardiac arrhythmia) is called tachyarrhythmia.
| Timeframe | Studies, this research(%) | All Research% |
|---|---|---|
| pre-1990 | 7 (87.50) | 18.7374 |
| 1990's | 0 (0.00) | 18.2507 |
| 2000's | 1 (12.50) | 29.6817 |
| 2010's | 0 (0.00) | 24.3611 |
| 2020's | 0 (0.00) | 2.80 |
| Authors | Studies |
|---|---|
| Goldstein, DS | 1 |
| Holmes, C | 1 |
| Frank, SM | 1 |
| Dendi, R | 1 |
| Cannon, RO | 1 |
| Sharabi, Y | 1 |
| Esler, MD | 1 |
| Eisenhofer, G | 1 |
| Hunter, KR | 1 |
| Hollman, A | 1 |
| Laurence, DR | 1 |
| Stern, GM | 1 |
| Desjacques, P | 1 |
| Moret, P | 1 |
| Gauthier, G | 1 |
| Robson, RD | 1 |
| Slama, R | 1 |
| Coumel, P | 1 |
| Waynberger, M | 1 |
| Motte, G | 1 |
| Ballantyne, JP | 1 |
| Kurkin, BV | 1 |
| Trial | Phase | Enrollment | Study Type | Start Date | Status | ||
|---|---|---|---|---|---|---|---|
| Clinical Laboratory Evaluation of Chronic Orthostatic Intolerance[NCT00069693] | 200 participants | Observational | 2003-09-26 | Completed | |||
| Propranolol for Syncope With Sympathoadrenal Imbalance[NCT00060866] | Phase 4 | 24 participants | Interventional | 2003-05-31 | Completed | ||
| Propranolol for Syncope With Sympathoadrenal Imbalance in Children[NCT00093860] | Phase 2 | 50 participants | Interventional | 2004-10-31 | Completed | ||
| [information is prepared from clinicaltrials.gov, extracted Sep-2024] | |||||||
1 trial available for dihydroxyphenylalanine and Tachycardia
| Article | Year |
|---|---|
Cardiac sympathetic dysautonomia in chronic orthostatic intolerance syndromes.
Topics: Adrenergic alpha-2 Receptor Antagonists; Adult; Autonomic Nervous System Diseases; Chronic Disease; | 2002 |
Cardiac sympathetic dysautonomia in chronic orthostatic intolerance syndromes.
Topics: Adrenergic alpha-2 Receptor Antagonists; Adult; Autonomic Nervous System Diseases; Chronic Disease; | 2002 |
Cardiac sympathetic dysautonomia in chronic orthostatic intolerance syndromes.
Topics: Adrenergic alpha-2 Receptor Antagonists; Adult; Autonomic Nervous System Diseases; Chronic Disease; | 2002 |
Cardiac sympathetic dysautonomia in chronic orthostatic intolerance syndromes.
Topics: Adrenergic alpha-2 Receptor Antagonists; Adult; Autonomic Nervous System Diseases; Chronic Disease; | 2002 |
Cardiac sympathetic dysautonomia in chronic orthostatic intolerance syndromes.
Topics: Adrenergic alpha-2 Receptor Antagonists; Adult; Autonomic Nervous System Diseases; Chronic Disease; | 2002 |
Cardiac sympathetic dysautonomia in chronic orthostatic intolerance syndromes.
Topics: Adrenergic alpha-2 Receptor Antagonists; Adult; Autonomic Nervous System Diseases; Chronic Disease; | 2002 |
Cardiac sympathetic dysautonomia in chronic orthostatic intolerance syndromes.
Topics: Adrenergic alpha-2 Receptor Antagonists; Adult; Autonomic Nervous System Diseases; Chronic Disease; | 2002 |
Cardiac sympathetic dysautonomia in chronic orthostatic intolerance syndromes.
Topics: Adrenergic alpha-2 Receptor Antagonists; Adult; Autonomic Nervous System Diseases; Chronic Disease; | 2002 |
Cardiac sympathetic dysautonomia in chronic orthostatic intolerance syndromes.
Topics: Adrenergic alpha-2 Receptor Antagonists; Adult; Autonomic Nervous System Diseases; Chronic Disease; | 2002 |
7 other studies available for dihydroxyphenylalanine and Tachycardia
| Article | Year |
|---|---|
L-dopa. II.
Topics: Anorexia Nervosa; Cardiac Complexes, Premature; Dihydroxyphenylalanine; Drug Synergism; Humans; Hypo | 1970 |
Levodopa in Parkinsonian patients with heart-disease.
Topics: Aged; Aortic Valve Stenosis; Arrhythmias, Cardiac; Cardiomegaly; Coronary Disease; Dihydroxyphenylal | 1971 |
[Cardiovascular effects of L-dopa and decarboxylase inhibitor on patients with Parkinson's disease].
Topics: Aged; Atrial Fibrillation; Bundle-Branch Block; Carboxy-Lyases; Cardiac Complexes, Premature; Cardio | 1973 |
Modification of the cardiovascular effects of L-dopa in anesthetized dogs by inhibitors of enzymes involved in catecholamine metabolism.
Topics: Angiotensin II; Animals; Blood Pressure; Bradycardia; Carboxy-Lyases; Cresols; Dihydroxyphenylalanin | 1971 |
[Levodopa and ECG wave bursts].
Topics: Aged; Dihydroxyphenylalanine; Electrocardiography; Heart; Humans; Male; Myocardial Infarction; Parki | 1972 |
Early and late effects of levodopa on the cardiovascular system in Parkinson's disease. A paired study.
Topics: Adult; Blood Pressure; Bradycardia; Cardiovascular System; Dihydroxyphenylalanine; Dose-Response Rel | 1973 |
[Excretion of catecholamines and DOPA in patients with paroxysmal disorders of the cardiac rhythm].
Topics: Adolescent; Adult; Aged; Arrhythmias, Cardiac; Arteriosclerosis; Blood Circulation; Coronary Disease | 1973 |