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Found 31 studies with search of: "Omega-N-Methylarginine"
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1 Not yet recruiting Role of Nitric Oxide in Optic Nerve Head Blood Flow Regulation During Isometric Exercise in Healthy Humans
Conditions: Intraocular Pressure;   Regional Blood Flow;   Ocular Physiology;   Optic Disk
Interventions: Drug: NG-monomethyl-L-arginine (L-NMMA);   Drug: Phenylephrine;   Drug: Physiological saline solution (as placebo);   Device: Laser Doppler Flowmetry;   Device: Goldmann applanation tonometer;   Other: squatting
2 Recruiting Role of Endothelin- and Nitric Oxide-System in the Regulation of Optic Nerve Head Blood Flow During Changes in Ocular Perfusion Pressure
Conditions: Ocular Physiology;   Optic Disk;   Regional Blood Flow
Interventions: Drug: NG-monomethyl-L-arginine (L-NMMA) (drug);   Drug: Endothelin-1 (ET-1) (drug)
3 Completed Phase 1 Study of L-NMMA in Patients With Liver Cirrhosis
Condition: Liver Cirrhosis
Intervention: Drug: Ng-monomethyl-L-arginine (drug)
4 Completed Effects of Acute L-NMMA Treatment on Renal Hemodynamics and Vasoactive Hormones in Patients With Congestive Heart Failure
Condition: Congestive Heart Failure
Intervention: Drug: Ng-monomethyl-L-arginine (drug)
5 Completed Effect of Elevated Plasma-Free-Fatty-Acids on Renal Hemodynamic Parameters
Conditions: Renal Circulation;   Renal Plasma Flow;   Glomerular Filtration Rate;   Fatty Acids, Nonesterified
Interventions: Drug: NG-monomethyl-L-Arginine (L-NMMA);   Drug: triglycerides (Intralipid 20%);   Drug: heparin;   Drug: somatostatin;   Drug: insulin;   Drug: glucose;   Drug: inulin;   Drug: paraamino hippurate (PAH)
6 Recruiting Does eNOS Gene Polymorphism Play a Role in the Maintenance of Basal Vascular Tone in the Choroid or Optic Nerve Head?
Conditions: Ocular Physiology;   Regional Blood Flow
Intervention: Drug: NG-monomethyl-L-arginine
7 Completed Effects of Systemic NO-Inhibition on Renal Hemodynamics in Patiens With Polycystic Kidney Disease and Chronic Glomerulonephritis
Conditions: ADPKD;   Glomerulonephritis
Intervention: Drug: Ng-monomethyl-L-arginine (drug)
8 Completed Effects of Inhibition of NO-Synthesis on Renal Hemodynamics and Sodium Excretion in Patients With Essential Hypertension and Healthy Controls
Condition: Hypertension
Intervention: Drug: Ng-monomethyl-L-arginine (drug)
9 Active, not recruiting Renin-Angiotensin Aldosterone System and Fibrinolysis Interaction in Humans-Specific Aim 3
Condition: Obesity
Interventions: Drug: Isosorbide;   Drug: Sildenafil
10 Completed Mechanisms of Choroidal Blood Flow Changes During Dark/Light Transitions
Conditions: Regional Blood Flow;   Ocular Physiology
Interventions: Drug: Phenylephrine;   Drug: NG-Monomethyl-L-Arginine;   Drug: Propanolol;   Drug: Atropine
11 Completed Characterization of Local Vascular Effects of LNMMA
Condition: Healthy Subjects
Intervention: Drug: L-NMMA(drug)
12 Completed Nitric Oxide and the Autonomic Nervous System
Conditions: Hypertension;   Pure Autonomic Failure
Interventions: Drug: L-NMMA;   Drug: Trimethaphan
13 Recruiting Niacin to Improve Blood Flow in People With Sickle Cell Disease
Condition: Sickle Cell Disease
Interventions: Drug: Niacin-ER;   Drug: Placebo;   Drug: L-NMMA;   Drug: Acetylcholine
14 Recruiting Autonomic Nervous System and Chronic Fatigue Syndrome
Conditions: Chronic Fatigue Syndrome;   Orthostatic Intolerance;   Postural Tachycardia Syndrome
Interventions: Other: Autonomic Function Tests;   Other: Saline infusions;   Drug: L-NMMA trimethaphan;   Drug: methyldopa
15 Recruiting The Autonomic Nervous System and the Metabolic Syndrome
Condition: Obesity
Interventions: Drug: Trimethaphan L-NMMA Insulin clamp;   Drug: Saline, Insulin clamp
16 Not yet recruiting The Role of Nitric Oxide Synthase Isoforms in the Cardiovascular Effects of Air Pollution
Condition: Endothelial Dysfunction
Intervention: Procedure: Forearm vascular study
17 Completed Blockade of Vascular Potassium Channels During Human Endotoxemia
Condition: Endotoxemia
Interventions: Drug: endotoxin;   Drug: Potassium channel blockers: TEA, Quinin, Tolbutamide;   Drug: L-NMMA
18 Completed The Effect of Lopinavir/Ritonavir on Endothelial Function
Condition: Healthy
Interventions: Drug: Acetylcholine;   Drug: L-NMMA
19 Completed Atorvastatin Therapy to Improve Endothelial Function in Sickle Cell Disease
Condition: Sickle Cell Disease
Interventions: Drug: Oxypurinol;   Drug: L-NMMA;   Drug: Acetylcholine
20 Recruiting Insulin and Sarcopenia in the Elderly
Condition: Sarcopenia
Interventions: Drug: Insulin R;   Drug: L-NMMA;   Drug: Sodium Nitroprusside;   Other: mixed meal

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