Biomaterial Database

Expression of small heat-shock protein hsp 27 in reactive gliosis in Alzheimer disease and other types of dementia. 1994

K Renkawek, and G J Bosman, and W W de Jong

Institute of Neurology, University Hospital Nijmegen, The Netherlands.

Immunohistochemical and immunoblotting analysis of brain tissue of Alzheimer's disease (AD) patients showed highly induced expression of the small heat-shock protein hsp 27 in affected cortex. Expression of hsp 27 was present in a large number of proliferating astrocytes. The highest expression was exhibited by degenerative astrocytes in the areas rich in senile plaques. Neurofibrillary tangles, Hirano bodies and some hippocampal neurons were also positive. Expression of hsp 27 increased with the severity of AD-specific morphological changes, and with the duration of dementia. In control brains immunoreaction was restricted to the vessels and to occasional astrocytes in the white matter. Similar patterns of immunoreactivity were present in cases without dementia (Parkinson disease, lacunar state, or focal ischemic necrosis). Patients suffering from other types of dementia (Parkinson/dementia complex, multi-infarct dementia, normal pressure hydrocephalus) showed less expression of hsp 27 in reactive astrocytes than AD, but more than controls. These results indicate that increased expression of hsp 27, especially in astrocytes showing klazmatodendrosis, is associated with AD pathology.

UI	MeSH Term	Description	Entries
D007150	Immunohistochemistry	Histochemical localization of immunoreactive substances using labeled antibodies as reagents.	Immunocytochemistry,Immunogold Techniques,Immunogold-Silver Techniques,Immunohistocytochemistry,Immunolabeling Techniques,Immunogold Technics,Immunogold-Silver Technics,Immunolabeling Technics,Immunogold Silver Technics,Immunogold Silver Techniques,Immunogold Technic,Immunogold Technique,Immunogold-Silver Technic,Immunogold-Silver Technique,Immunolabeling Technic,Immunolabeling Technique,Technic, Immunogold,Technic, Immunogold-Silver,Technic, Immunolabeling,Technics, Immunogold,Technics, Immunogold-Silver,Technics, Immunolabeling,Technique, Immunogold,Technique, Immunogold-Silver,Technique, Immunolabeling,Techniques, Immunogold,Techniques, Immunogold-Silver,Techniques, Immunolabeling
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D009422	Nervous System Diseases	Diseases of the central and peripheral nervous system. This includes disorders of the brain, spinal cord, cranial nerves, peripheral nerves, nerve roots, autonomic nervous system, neuromuscular junction, and muscle.	Neurologic Disorders,Nervous System Disorders,Neurological Disorders,Disease, Nervous System,Diseases, Nervous System,Disorder, Nervous System,Disorder, Neurologic,Disorder, Neurological,Disorders, Nervous System,Disorders, Neurologic,Disorders, Neurological,Nervous System Disease,Nervous System Disorder,Neurologic Disorder,Neurological Disorder
D012016	Reference Values	The range or frequency distribution of a measurement in a population (of organisms, organs or things) that has not been selected for the presence of disease or abnormality.	Normal Range,Normal Values,Reference Ranges,Normal Ranges,Normal Value,Range, Normal,Range, Reference,Ranges, Normal,Ranges, Reference,Reference Range,Reference Value,Value, Normal,Value, Reference,Values, Normal,Values, Reference
D003704	Dementia	An acquired organic mental disorder with loss of intellectual abilities of sufficient severity to interfere with social or occupational functioning. The dysfunction is multifaceted and involves memory, behavior, personality, judgment, attention, spatial relations, language, abstract thought, and other executive functions. The intellectual decline is usually progressive, and initially spares the level of consciousness.	Senile Paranoid Dementia,Amentia,Familial Dementia,Amentias,Dementia, Familial,Dementias,Dementias, Familial,Dementias, Senile Paranoid,Familial Dementias,Paranoid Dementia, Senile,Paranoid Dementias, Senile,Senile Paranoid Dementias
D005260	Female		Females
D005911	Gliosis	The production of a dense fibrous network of neuroglia; includes astrocytosis, which is a proliferation of astrocytes in the area of a degenerative lesion.	Astrocytosis,Astrogliosis,Glial Scar,Astrocytoses,Glial Scars,Scar, Glial
D006360	Heat-Shock Proteins	Proteins which are synthesized in eukaryotic organisms and bacteria in response to hyperthermia and other environmental stresses. They increase thermal tolerance and perform functions essential to cell survival under these conditions.	Stress Protein,Stress Proteins,Heat-Shock Protein,Heat Shock Protein,Heat Shock Proteins,Protein, Stress
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man