U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

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Showing 381 - 390 of 993 results

Status:
Other

Class (Stereo):
CHEMICAL (ACHIRAL)


Conditions:

PNU-177864 is a selective antagonist of D3 receptor. Compound was considered as a drug candidate for the chronic treatment of schizophrenia, but severe myopathy was found in skeletal muscles of rats during the initial safety evaluation of PNU-177864. Myopathy was associated with phospholipidosis in numerous tissues.
Norfluoxetine is an active N-desmethyl metabolite of the antidepressant fluoxetine that inhibits serotonin uptake. Norfluoxetine is selective serotonin reuptake inhibitor (SSRI) but little is known about its pharmacological actions. Seproxetine (S- Norfluoxetine) was being investigated by Eli Lilly as an antidepressant but development was never completed and the drug was never marketed.
SCH-23390 is a potent and selective antagonist of the dopamine-1 and dopamine-5 receptors (Ki = 0.2 and 0.3 nM respectively). It was found to prevent death from d-amphetamine overdose in rats and has also been investigated as a potential treatment for Parkinson's Disease and Bipolar Disorder. A single clinical trial was conducted in healthy humans where SCH-23390 induced akathisia (motor restlessness). Preclinical and clinical trials as therapeutic have been discontinued due to side-effects and lack of efficacy. However, it should be noted that a C11 radiolabeled version of the compound has been synthesized and used as a PET imaging probe for the study of Parkinson's Disease and Huntington's Disease.
Status:
Other

Class (Stereo):
CHEMICAL (ACHIRAL)


Conditions:

NGD 94-1 is high affinity D4 receptor ligand, shows selective over D1, D2, D3 and D5 receptors. Displays antagonist activity at the human D4.2 receptor (Ki = 3.6 nM in transfected CHO cells) and exhibits agonist activity at the D4.4 receptor in HEK 293 cells.
Status:
Other

Class (Stereo):
CHEMICAL (ACHIRAL)

Status:
Other

Class (Stereo):
CHEMICAL (ACHIRAL)


Conditions:

4-(4-Chlorophenyl)-4-piperidinol (CPPO) is one of haloperidol metabolite. Neurotoxicity studies in frogs, which have been used to detect N-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) action, showed that CPPO did not mimic the neurotoxicity of MPTP but caused a delayed and persistent freezing action in Rana pipiens frogs. It is proposed that this action may contribute to some of the delayed side-effects associated with haloperidol therapy.
Hordenine is a natural Phenethylamine compound that occurs in a number of different plants, but especially barley grass. It is structurally similar to the amino acid Tyramine. It antagonized D2-mediated beta-arrestin recruitment indicating functional selectivity. Hordenine inhibited melanogenesis by suppressing cAMP production, which is involved in the expression of melanogenesis-related proteins. Hordenine may be an effective inhibitor of hyperpigmentation. Hordenine is an indirectly acting adrenergic drug. It liberates norepinephrine from stores. In isolated organs and those structures with reduced epinephrine contents, the hordenine-effect is only very poor. Experiments in intact animals (rats, dogs) show that hordenine has a positive inotropic effect upon the heart, increases systolic and diastolic blood pressure, peripheral blood flow volume, inhibits gut movements but has no effect upon the psychomotorical behavior of mice. Hordenine is considered to be generally very safe and well-tolerated in healthy adults. Hordenine is a nootropic compound that works equally well for cognitive enhancement and athletic performance.