Biomaterial Database

Autosomal recessive neurodegenerative disorder with trichorrhexis invaginata and ectodermal dysplasia. 1992

K A Gyure, and T W Kurczynski, and W Gunning, and B N French

Department of Pediatrics, Medical College of Ohio, Toledo 43699-0008.

Two siblings are reported with an autosomal recessive syndrome characterized by hair and skin abnormalities, hypoplastic nails, generalized hypotonia, absent reflexes, and progressive neurologic deterioration. Although this disorder shares clinical features with an ectodermal dysplasia syndrome with neurodegenerative changes, no specific neuropathologic findings were present. Instead, trichorrhexis invaginata was found in some hair shafts. Hair analysis may be helpful in classifying clinically confusing neurologic conditions.

UI	MeSH Term	Description	Entries
D007223	Infant	A child between 1 and 23 months of age.	Infants
D008297	Male		Males
D008854	Microscopy, Electron	Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen.	Electron Microscopy
D009123	Muscle Hypotonia	A diminution of the skeletal muscle tone marked by a diminished resistance to passive stretching.	Flaccid Muscle Tone,Hypotonia,Decreased Muscle Tone,Floppy Muscles,Hypomyotonia,Hypotony, Muscle,Muscle Flaccidity,Muscle Tone Atonic,Muscle Tone Poor,Muscular Flaccidity,Muscular Hypotonia,Neonatal Hypotonia,Unilateral Hypotonia,Flaccidity, Muscle,Flaccidity, Muscular,Floppy Muscle,Hypotonia, Muscle,Hypotonia, Muscular,Hypotonia, Neonatal,Hypotonia, Unilateral,Hypotonias, Neonatal,Hypotonias, Unilateral,Muscle Hypotony,Muscle Tone Atonics,Muscle Tone, Decreased,Muscle Tone, Flaccid,Muscle, Floppy,Muscles, Floppy,Muscular Flaccidities,Neonatal Hypotonias,Tone Atonic, Muscle,Tone Poor, Muscle
D009460	Neurologic Examination	Assessment of sensory and motor responses and reflexes that is used to determine impairment of the nervous system.	Examination, Neurologic,Neurological Examination,Examination, Neurological,Examinations, Neurologic,Examinations, Neurological,Neurologic Examinations,Neurological Examinations
D002869	Chromosome Aberrations	Abnormal number or structure of chromosomes. Chromosome aberrations may result in CHROMOSOME DISORDERS.	Autosome Abnormalities,Cytogenetic Aberrations,Abnormalities, Autosome,Abnormalities, Chromosomal,Abnormalities, Chromosome,Chromosomal Aberrations,Chromosome Abnormalities,Cytogenetic Abnormalities,Aberration, Chromosomal,Aberration, Chromosome,Aberration, Cytogenetic,Aberrations, Chromosomal,Aberrations, Chromosome,Aberrations, Cytogenetic,Abnormalities, Cytogenetic,Abnormality, Autosome,Abnormality, Chromosomal,Abnormality, Chromosome,Abnormality, Cytogenetic,Autosome Abnormality,Chromosomal Aberration,Chromosomal Abnormalities,Chromosomal Abnormality,Chromosome Aberration,Chromosome Abnormality,Cytogenetic Aberration,Cytogenetic Abnormality
D004476	Ectodermal Dysplasia	A group of hereditary disorders involving tissues and structures derived from the embryonic ectoderm. They are characterized by the presence of abnormalities at birth and involvement of both the epidermis and skin appendages. They are generally nonprogressive and diffuse. Various forms exist, including anhidrotic and hidrotic dysplasias, FOCAL DERMAL HYPOPLASIA, and aplasia cutis congenita.	Anhidrotic Ectodermal Dysplasia,Aplasia Cutis Congenita,Clouston's Syndrome,Ectodermal Defect, Congenital,Hidrotic Ectodermal Dysplasia,Anhydrotic Ectodermal Dysplasia,Aplasia Cutis Congenita, Nonsyndromic,Autosomal Dominant Hidrotic Ectodermal Dysplasia,Clouston Hidrotic Ectodermal Dysplasia,Clouston Syndrome,Clouston's Hidrotic Ectodermal Dysplasia,Congenital Ectodermal Defect,Defect, Congenital Ectodermal,Ectodermal Dysplasia 2, Hidrotic,Ectodermal Dysplasia Anhidrotic,Ectodermal Dysplasia, Anhydrotic,Ectodermal Dysplasia, Hidrotic,Ectodermal Dysplasia, Hidrotic, Autosomal Dominant,Hidrotic Ectodermal Dysplasia, Autosomal Dominant,Hydrotic Ectodermal Dysplasia,Anhidrotic Ectodermal Dysplasias,Anhidrotic, Ectodermal Dysplasia,Anhidrotics, Ectodermal Dysplasia,Anhydrotic Ectodermal Dysplasias,Cloustons Syndrome,Congenital Ectodermal Defects,Defects, Congenital Ectodermal,Dysplasia Anhidrotic, Ectodermal,Dysplasia Anhidrotics, Ectodermal,Dysplasia, Anhidrotic Ectodermal,Dysplasia, Anhydrotic Ectodermal,Dysplasia, Ectodermal,Dysplasia, Hidrotic Ectodermal,Dysplasia, Hydrotic Ectodermal,Dysplasias, Anhidrotic Ectodermal,Dysplasias, Anhydrotic Ectodermal,Dysplasias, Ectodermal,Dysplasias, Hidrotic Ectodermal,Dysplasias, Hydrotic Ectodermal,Ectodermal Defects, Congenital,Ectodermal Dysplasia, Anhidrotic,Ectodermal Dysplasia, Hydrotic,Ectodermal Dysplasias,Ectodermal Dysplasias, Anhidrotic,Ectodermal Dysplasias, Anhydrotic,Ectodermal Dysplasias, Hydrotic,Hidrotic Ectodermal Dysplasias,Hydrotic Ectodermal Dysplasias,Syndrome, Clouston,Syndrome, Clouston's
D005260	Female		Females
D005500	Follow-Up Studies	Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease.	Followup Studies,Follow Up Studies,Follow-Up Study,Followup Study,Studies, Follow-Up,Studies, Followup,Study, Follow-Up,Study, Followup
D005808	Genes, Recessive	Genes that influence the PHENOTYPE only in the homozygous state.	Conditions, Recessive Genetic,Genetic Conditions, Recessive,Recessive Genetic Conditions,Condition, Recessive Genetic,Gene, Recessive,Genetic Condition, Recessive,Recessive Gene,Recessive Genes,Recessive Genetic Condition