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Items: 9

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.

Genetic prion diseases

Genetic prion diseases generally manifest with cognitive difficulties, ataxia, and myoclonus (abrupt jerking movements of muscle groups and/or entire limbs). The order of appearance and/or predominance of these features and other associated neurologic and psychiatric findings vary. Familial Creutzfeldt-Jakob disease (fCJD), Gerstmann-Sträussler-Scheinker (GSS) syndrome, and fatal familial insomnia (FFI) represent the core phenotypes of genetic prion disease. Note: A fourth clinical phenotype, known as Huntington disease like-1 (HDL-1) has been proposed, but this is based on a single report, and the underlying pathologic features would categorize it as GSS. Although it is clear that these four subtypes display overlapping clinical and pathologic features, recognition of these phenotypes can be useful when providing affected individuals and their families with information about the expected clinical course. The age at onset ranges from the third to ninth decade of life. The course ranges from a few months to several years (typically 5-7 years; in rare instances, >10 years). [from GeneReviews]

MedGen UID:
56445
Concept ID:
C0162534
Disease or Syndrome
3.

disease transmission

Transmission of disease from one individual to another. [from PSY]

MedGen UID:
66979
Concept ID:
C0242781
Pathologic Function
4.

Pityriasis rubra pilaris

Pityriasis rubra pilaris is an uncommon skin disorder characterized by the appearance of keratotic follicular papules, well-demarcated salmon-colored erythematous plaques covered with fine powdery scales interspersed with distinct islands of uninvolved skin, and palmoplantar keratoderma. Most cases are sporadic, although up to 6.5% of PRP-affected individuals report a positive family history. The rare familial cases show autosomal dominant inheritance with incomplete penetrance and variable expression: the disorder is usually present at birth or appears during the first years of life and is characterized by prominent follicular hyperkeratosis, diffuse palmoplantar keratoderma, and erythema, with only a modest response to treatment (summary by Fuchs-Telem et al., 2012). [from OMIM]

MedGen UID:
45939
Concept ID:
C0032027
Disease or Syndrome
5.

Heredodegenerative Disorders, Nervous System

Inherited disorders characterized by progressive atrophy and dysfunction of anatomically or physiologically related neurologic systems. [from MeSH]

MedGen UID:
155945
Concept ID:
C0751870
Disease or Syndrome
6.

Neurodegenerative disease

Hereditary and sporadic conditions which are characterized by progressive nervous system dysfunction. These disorders are often associated with atrophy of the affected central or peripheral nervous system structures. [from MeSH]

MedGen UID:
101195
Concept ID:
C0524851
Disease or Syndrome
7.

Endopeptidases

nonEC category which corresponds to EC 3.4.21, EC 3.4.22, EC 3.4.23, EC 3.4.24, and EC 3.4.99. [from CRISP]

MedGen UID:
45389
Concept ID:
C0030946
Amino Acid, Peptide, or Protein; Enzyme; Pharmacologic Substance
8.

Gerstmann-Straussler-Scheinker syndrome

Genetic prion diseases generally manifest with cognitive difficulties, ataxia, and myoclonus (abrupt jerking movements of muscle groups and/or entire limbs). The order of appearance and/or predominance of these features and other associated neurologic and psychiatric findings vary. Familial Creutzfeldt-Jakob disease (fCJD), Gerstmann-Sträussler-Scheinker (GSS) syndrome, and fatal familial insomnia (FFI) represent the core phenotypes of genetic prion disease. Note: A fourth clinical phenotype, known as Huntington disease like-1 (HDL-1) has been proposed, but this is based on a single report, and the underlying pathologic features would categorize it as GSS. Although it is clear that these four subtypes display overlapping clinical and pathologic features, recognition of these phenotypes can be useful when providing affected individuals and their families with information about the expected clinical course. The age at onset ranges from the third to ninth decade of life. The course ranges from a few months to several years (typically 5-7 years; in rare instances, >10 years). [from GeneReviews]

MedGen UID:
4886
Concept ID:
C0017495
Disease or Syndrome
9.

CNS infection

Pathogenic infections of the brain, spinal cord, and meninges. DNA VIRUS INFECTIONS; RNA VIRUS INFECTIONS; BACTERIAL INFECTIONS; MYCOPLASMA INFECTIONS; SPIROCHAETALES INFECTIONS; fungal infections; PROTOZOAN INFECTIONS; HELMINTHIASIS; and PRION DISEASES may involve the central nervous system as a primary or secondary process. [from MeSH]

MedGen UID:
2948
Concept ID:
C0007684
Disease or Syndrome
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