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1.
J Biomed Mater Res ; 11(2): 195-210, 1977 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-323263

RESUMO

Thirty different test patches of various thin film materials were chronically implanted in the subdural space of cats to determine their suitability as components for proposed neuroprosthetic devices. In particular, materials employed by the microelectronics industry were screened, and reactions were found to be quite dependent on specific formulations or surface preparations of otherwise similar materials. A nonspecific but severe complication of pressure necrosis under thin films that spontaneously roll and curl in vivo was noted.


Assuntos
Meninges/anatomia & histologia , Próteses e Implantes , Espaço Subdural/anatomia & histologia , Animais , Gatos , Dura-Máter/patologia , Eletrofisiologia , Estudos de Avaliação como Assunto , Reação a Corpo Estranho/patologia , Metais/farmacologia , Polímeros/farmacologia , Espaço Subdural/patologia , Fatores de Tempo
2.
Johns Hopkins Med J ; 138(4): 142-5, 1976 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-1271602

RESUMO

Three- and four-year-old brothers, ostensibly with a nonprogressive spastic quadriparesis, had retinitis pigmentosa and mental retardation. One had clinical deafness. The brothers showed little developmental progress in infancy and exhibited deterioration in childhood. Known metabolic and acquired causes were excluded. Although they have some features of several other syndromes,the condition reported here is unique.


Assuntos
Surdez/genética , Deficiência Intelectual/genética , Quadriplegia/genética , Retinose Pigmentar/genética , Envelhecimento , Pré-Escolar , Consanguinidade , Diagnóstico Diferencial , Humanos , Endogamia , Masculino , Linhagem
3.
Arch Ophthalmol ; 93(3): 169-72, 1975 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-1138681

RESUMO

In two siblings with olivopontocerebellar degeneration, the retinal pigment epithelium or the sensory retinal or both appeared to be damaged first. These layers were markedly involved before secondary changes in the choriocapillaris, the inner retinal layers, or the optic nerve occurred.


Assuntos
Doenças Cerebelares/genética , Núcleo Olivar , Ponte , Doenças Retinianas/etiologia , Adulto , Encefalopatias/genética , Doenças Cerebelares/patologia , Corioide/patologia , Grânulos Citoplasmáticos , Epitélio/patologia , Feminino , Angiofluoresceinografia , Fundo de Olho , Humanos , Lactente , Masculino , Pigmentos Biológicos , Retina/patologia , Doenças Retinianas/genética , Doenças Retinianas/patologia , Síndrome
20.
Birth Defects Orig Artic Ser ; 07(4): 2-17, 1971 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-5173348

RESUMO

Seventy types of hereditary deafness can be distinguished using the following features of the syndrome: 1) mode of genetic transmission, 2) characteristics of the deafness, 3) age of onset, 4) sonic frequencies involved and 5) associated abnormalities. The gene, in single or double dose, causing the hearing loss may also cause abnormalities of the external ear, or of the integumentary, visual, nervous, skeletal, or urinary systems. In this report the characteristics of the hearing loss in each of the types of hereditary hearing loss are reviewed in eight tables.


Assuntos
Surdez/genética , Anormalidades Múltiplas/complicações , Fatores Etários , Surdez/classificação , Surdez/complicações , Orelha/anormalidades , Otopatias/genética , Humanos
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