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Items: 1 to 20 of 28

1.

Neurodegeneration

Loss of functional activity and trophic degeneration of nerve axons and their terminal arborizations following the destruction of their cells of origin or interruption of their continuity with these cells. The pathology is characteristic of neurodegenerative diseases. Often the process of nerve degeneration is studied in research on neuroanatomical localization and correlation of the neurophysiology of neural pathways. [from MeSH]

MedGen UID:
17999
Concept ID:
C0027746
Cell or Molecular Dysfunction
2.

Biochemical Process

A linked series of non-equivalent biochemical interactions and enzymatic reactions, and/or a linked series of biochemical processes. [from NCI]

MedGen UID:
267723
Concept ID:
C1511130
Molecular Function
3.

Oxidative Stress

A disturbance in the prooxidant-antioxidant balance in favor of the former, leading to potential damage. Indicators of oxidative stress include damaged DNA bases, protein oxidation products, and lipid peroxidation products. The damage to biological tissues is caused by superoxide and other free radicals generated by many factors, including exposure to alcohol, medications, trauma, cold, toxins, and radiation or by antimicrobial cellular immunity, metabolic abnormality, or "normal" aging; not synonymous with hypoxia or hyperoxia. Oxidative stress promotes a range of degenerative disorders, including cancer, diabetes, premature aging, Alzheimer's, and many others. [from NCI]

MedGen UID:
66929
Concept ID:
C0242606
Cell or Molecular Dysfunction
4.

Oxygen

An element with atomic symbol O, atomic number 8, and atomic weight 16. [from NCI]

MedGen UID:
45267
Concept ID:
C0030054
Biologically Active Substance; Element, Ion, or Isotope; Pharmacologic Substance
5.

Parkinson disease, late-onset

Parkinsonism refers to all clinical states characterized by tremor, muscle rigidity, slowed movement (bradykinesia) and often postural instability. Parkinson disease is the primary and most common form of parkinsonism. Psychiatric manifestations, which include depression and visual hallucinations, are common but not uniformly present. Dementia eventually occurs in at least 20% of cases. The most common sporadic form of Parkinson disease manifests around age 60; however, young-onset and even juvenile presentations are seen. [from GTR]

MedGen UID:
463618
Concept ID:
C3160718
Disease or Syndrome
6.

Parkinsonism

A group of disorders which feature impaired motor control characterized by bradykinesia, MUSCLE RIGIDITY; TREMOR; and postural instability. Parkinsonian diseases are generally divided into primary parkinsonism (see PARKINSON DISEASE), secondary parkinsonism (see PARKINSON DISEASE, SECONDARY) and inherited forms. These conditions are associated with dysfunction of dopaminergic or closely related motor integration neuronal pathways in the BASAL GANGLIA. [from MeSH]

MedGen UID:
66079
Concept ID:
C0242422
Disease or Syndrome
7.

Stress

The negative mental, emotional, and physical reactions that occur when environmental stressors are perceived as exceeding the individual's adaptive capacities. [from NCI]

MedGen UID:
20971
Concept ID:
C0038435
Finding
8.

Parkinson disease

Parkinsonism refers to all clinical states characterized by tremor, muscle rigidity, slowed movement (bradykinesia) and often postural instability. Parkinson disease is the primary and most common form of parkinsonism. Psychiatric manifestations, which include depression and visual hallucinations, are common but not uniformly present. Dementia eventually occurs in at least 20% of cases. The most common sporadic form of Parkinson disease manifests around age 60; however, young-onset and even juvenile presentations are seen. [from GTR]

MedGen UID:
10590
Concept ID:
C0030567
Disease or Syndrome
9.

Molecular Mechanisms of Pharmacological Action

Pharmacological activities at the molecular level of DRUGS and other exogenous compounds that are used to treat DISEASES and affect normal BIOCHEMISTRY. [from MeSH]

MedGen UID:
226255
Concept ID:
C1258062
Molecular Function
10.

Parkinson Disease, Juvenile

MedGen UID:
155699
Concept ID:
C0752105
Disease or Syndrome
11.

Intropin

MedGen UID:
147406
Concept ID:
C0721081
Organic Chemical; Pharmacologic Substance
12.

Neurotransmitter Agents

Substances used for their pharmacological actions on any aspect of neurotransmitter systems. Neurotransmitter agents include agonists, antagonists, degradation inhibitors, uptake inhibitors, depleters, precursors, and modulators of receptor function. [from MeSH]

MedGen UID:
69321
Concept ID:
C0243051
Pharmacologic Substance
13.

Protease preparation

A class of enzymes that catalyze the hydrolysis of peptide bonds in the interior of a polypeptide chain or protein molecule. [from NCI]

MedGen UID:
45389
Concept ID:
C0030946
Amino Acid, Peptide, or Protein; Enzyme; Pharmacologic Substance
14.

Dopamine

A monoamine compound with positive inotropic activity. Dopamine is a naturally occurring catecholamine formed by decarboxylation of dehydroxyphenylalanine and a precursor of norepinephrine and epinephrine. Dopamine binds to alpha-1 and beta-1 adrenergic receptors. Mediated through myocardial beta-1 adrenergic receptors, dopamine increase heart rate and force, thereby increasing cardiac output. Alpha-1 adrenergic receptor stimulation on vascular smooth muscle, leads to vasoconstriction and results in an increase in systemic vascular resistance. Stimulation of dopaminergic receptors in renal vasculature, leads to renal blood vessel dilation, and an increase in glomerular filtration rate, renal blood flow, sodium excretion, and urine output. [from NCI]

MedGen UID:
41644
Concept ID:
C0013030
Biologically Active Substance; Organic Chemical; Pharmacologic Substance
15.

Unspecified encephalopathy

A functional and/or structural disorder of the brain caused by diseases (e.g. liver disease, kidney disease), medications, chemicals, and injuries. [from NCI]

MedGen UID:
39314
Concept ID:
C0085584
Disease or Syndrome
16.

Disorder of nervous system

A non-neoplastic or neoplastic disorder that affects the brain, spinal cord, or peripheral nerves. [from NCI]

MedGen UID:
14336
Concept ID:
C0027765
Disease or Syndrome
17.

Disorder of brain

A non-neoplastic or neoplastic disorder that affects the brain. [from NCI]

MedGen UID:
14214
Concept ID:
C0006111
Disease or Syndrome
18.

Abnormality of the basal ganglia

Abnormality of the basal ganglia. [from HPO]

MedGen UID:
14035
Concept ID:
C0004782
Disease or Syndrome
19.

Symptomatic parkinsonism

A condition with a clinical picture similar to that of Parkinson disease, but which is caused by external factors, including medication. [from NCI]

MedGen UID:
10592
Concept ID:
C0030569
Disease or Syndrome
20.

Movement disorders

An abnormality of movement with a neurological basis characterized by changes in coordination and speed of voluntary movements. [from HPO]

MedGen UID:
10113
Concept ID:
C0026650
Disease or Syndrome
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