Masakatsu Seino

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The partial sequence of the human insulin-receptor (hINSR) gene is presented. Using the gene sequence as a guide, we selected pairs of oligonucleotide primers from sites in the introns that flank each exon. These primers allowed each of the 22 exons of the hINSR gene to be amplified in vitro by the polymerase chain reaction. The sequences of the gene and(More)
We investigated the effect of zonisamide, a new antiepileptic drug, on voltage-dependent Ca2+ currents in cultured neurons of rat cerebral cortex. Whole-cell voltage-clamp recordings demonstrated at least two distinct voltage-dependent Ca2+ currents: (1) a low-threshold, rapidly inactivating component, T-type Ca2+ current, which is sensitive to 100 microM(More)
The human insulin receptor gene, INSR, and its promoter region have been isolated and characterized. The gene spans greater than 120 kilobase pairs (kbp) and has 22 exons. All introns interrupt protein coding regions of the gene. The 11 exons encoding the alpha subunit of the receptor are dispersed over greater than 90 kbp, whereas the 11 exons encoding the(More)
We previously reported the cloning of two distinct somatostatin receptor (SSTR) subtypes, SSTR1 and SSTR2. Although both SSTR1 and SSTR2 bound somatostatin specifically and with high affinity, neither was coupled to adenylyl cyclase, a major cellular effector of somatostatin's actions. Here we report the cloning and functional characterization of a third(More)
The genes encoding three different human somatostatin receptor subtypes, designated SSTR1, SSTR2, and SSTR3, were mapped to chromosomes 14, 17, and 22, respectively, by analyzing their segregation in a panel of reduced human-hamster somatic cell hybrids. These assignments were confirmed independently using fluorescence in situ hybridization to metaphase(More)
The isoforms of the alpha 1 subunits of voltage-dependent Ca2+ channels expressed in human pancreatic islets were identified by using a pair of degenerate oligonucleotide primers and the polymerase chain reaction (PCR) to amplify mRNAs encoding alpha 1 subunit-like sequences. The sequences of the PCR products indicate that islets express the heart-type(More)
In 1969, the International League Against Epilepsy published a scheme for classification of epileptic seizures. Professor H. Gastaut, then Secretary-General of ILAE and a member of the Commission an Classification, related the history of the work which represents a milestone in efforts at classifying epileptic seizures and has led to world-wide adoption(More)
OBJECTIVE To identify the pathophysiologic mechanisms of the photoparoxysmal response (PPR) in various photosensitive epilepsy syndromes, and to discuss the relation between these pathophysiologic mechanisms and the classification of epilepsies and epileptic syndromes. BACKGROUND The authors found two types of pathophysiologic mechanisms of PPRs(More)