A locus for autosomal recessive congenital microphthalmia maps to chromosome 14q32

Article Abstract:

A gene associated with isolated congenital microphthalmia (CMIC) has been mapped to chromosome 14q32, probably between markers D14S987 and D14S267. The condition is inherited as an autosomal recessive trait in a five-generation consanguineous family from Pakistan with six affected members living. Over 150 polymorphic markers were typed for 16 family members, and homozygosity mapping was carried out.

author: Bhattacharya, Shomi S., Khaliq, Shagufta, Mehdi, S. Qasim, Bessant, David A.R., Hameed, Abdul, Anwar, Khalid, Payne, Annette M.
Abnormalities, Eye, Eye abnormalities

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Childhood absence epilepsy with tonic-clonic seizures and electroencephalogram 3-4-Hz spike and multispike-slow wave complexes: linkage to chromosome 8q24

Article Abstract:

Research on a family from India has linked childhood absence epilepsy (CAE) to a specific chromosome using electroencephalogram spike and wave complexes. CAE with tonic-clonic seizures was studied using model-free affected-pedigree member methodology and two-point linkage analysis. Clinical and electroencephalographic traits implicated chromosome 8q24, assuming autosomal dominant inheritance.

author: Medina, Marco T., Huang, Y., Fong, G.C.Y., Shah, Pravina U., Gee, Manyee N., Serratosa, Jose M., Castroviejo, Ignacio Pascual, Khan, Sonia, Ravat, Sangeeta H., Mani, Jayanthi, Zhao, H.Z., Treiman, Lucy J., Pineda, Gregorio, Delgado-Escueta, Antonio V.
India, Usage, Epilepsy, Electroencephalography, Epilepsy in children, Pediatric epilepsy

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Chromosome 21 disomy in the spermatozoa of the fathers of children with trisomy 21, in a population with a high prevalence of Down syndrome: increased incidence in cases of paternal origin

Article Abstract:

Epidemiological research of Down's syndrome in the Spanish city of El Valles revealed a rise in disomy in cases of paternal origin. While most fathers of Down's syndrome children did not have a significant difference in chromosome 21 disomy from the control population, a large increase was discovered in the fathers of children whose syndrome was of paternal origin.

Spain, Health aspects, Causes of, Down syndrome, Human chromosome abnormalities

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subjects list: Research, Genetic disorders
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