[A clinical study on a system of assessment of impaired consciousness (the second report) (author's transl)].
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Biomedical subjects
Publications and source records attributed to C Kanazawa.
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Rotavirus RNA was detected in the blood and cerebrospinal fluid from eight Japanese children with convulsions and gastroenteritis in the acute stage by means of the reverse transcription polymerase chain reaction. This may suggest that rotavirus invades the central nervous system through blood vessels.
PURPOSE: The genetic basis of Bernard-Soulier syndrome (BSS) was studied to clarify a relationship between severe clinical manifestations and gene abnormality. PATIENT AND METHODS: A patient with BSS had a severe bleeding tendency that was sometimes life threatening. Flow cytometric analysis of the patient's and normal control platelets was performed to study which glycoprotein (GP) was impaired in glycoprotein Ib/V/IX complex. The genes encoding GPIbalpha from the patient's and control genomic DNA were amplified and directly sequenced. RESULTS: Flow cytometric analysis revealed a defect of GPIbalpha on the surface of the patient's platelets. A homozygous single base pair deletion was identified in seven repeats of adenine at positions 1932 to 1938 in the GPIbalpha gene. This mutation, which has been previously reported, results in a frameshift and predicts a premature stop codon leading to a truncated peptide that cannot fix on the platelet membrane. CONCLUSION: This patient's severe clinical phenotype would be explained by this mutation in the GPIbalpha gene.