Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0086543 (cataract)
 29,165 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Steinert's syndrome is a systemic disease with autosome mother-to-child transmission, characterized by myotonia and muscular dystrophia. The syndrome's clinical characteristics include: respiratory and alimentation diseases, facial diplegia, generalized hypotonia, areflexia, atrophy, arthrogryposis, hydramnios, retard in psychomotor development, cataract and genital disorders. A case of pregnancy occurs in Steinert syndrome's patient with hydramnios as a predominant symptom, is presented. At birth, in the congenital neonatal form, there is grave, generalized hypotonia which causes a very quick death of the newborn. There are not many characters which can be found out by ultrasound: hydramnios, reduction of fetal tone and active movements, micrognathia. Consequently it is of the utmost importance in those cases an adequate prenatal genetic counseling and a correct obstetrical management.
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PMID:[A rare cause of polyhydramnios: Steinert's syndrome. A clinical case report]. 916 86

COL4A1 is located in humans on chromosome13q34 and it encodes the alpha 1 chain of type IV collagen, a component of basal membrane. It is expressed mainly in the brain, muscles, kidneys and eyes. Different COL4A1 mutations have been reported in many patients who present a very wide spectrum of clinical symptoms. They typically show a multisystemic phenotype. Here we report on the case of a patient carrying a novel de novo splicing mutation of COL4A1 associated with a distinctive clinical picture characterized by onset in infancy and an unusual evolution of the neuroradiological features. At three months of age, the child was diagnosed with a congenital cataract, while his brain MRI was normal. Over the following years, the patient developed focal epilepsy, mild diplegia, asymptomatic microhematuria, raised creatine kinase levels, MRI white matter abnormalities and brain calcification on CT. During the neuroradiological follow-up the extension and intensity of the brain lesions progressively decreased. The significance of a second variant in COL4A1 carried by the child and inherited from his father remains to be clarified. In conclusion, our patient shows new aspects of this collagenopathy and possibly a COL4A1 compound heterozygosity.
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PMID:A novel mutation in COL4A1 gene: a possible cause of early postnatal cerebrovascular events. 2570 14