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Biomedical subjects

S Ban

Publications and source records attributed to S Ban.

At least 163 records · Page 9Linked to original sources
PubMed1984

[Facial palsy following head injury: topognosis, prognosis and indications for surgical decompression].

It is a common experience that the facial nerve is affected in closed head injury. 781 patients with head injury were treated at Kobe Central Municipal Hospital over a period of 5 years from January 1977 to April 1982, and facial palsy occurred in 25 cases (3.2%). The male to female ratio was 22: 3 and age ranged from 9 to 78 (average 36). The patients were studied, using radiological, topognostic and electrodiagnostic methods. Facial nerve decompression was done in 5 cases and 20 cases were treated conservatively. Results were as follows. The overall rate of complete recovery was 64% (16 of 25 cases). In the conservative treatment group, all patients with incomplete paralysis and normal maximal stimulation test (MST) recovered completely. With complete paralysis, if the initial nerve excitability (MST) was normal, recovery could be expected by conservative treatment. Even if the patients had abnormal nerve excitability (MST) at first, complete recovery could be observed, when signs of recovery could be elicited and normalization of MST occurred within 3 weeks from the onset of the palsy. In severe cases, even with abnormal MST from the onset, complete or partial recovery can be expected after surgery. Therefore, microsurgical decompression of the facial nerve is indicated in the following cases: patients with complete paralysis and no response to MST from the onset. patients with complete paralysis and deteriorating response to MST 1 month after onset. Maximal stimulation test is a good guide for determining the necessity for surgical intervention.

Accidents, Traffic↗
PubMed1983

Induction of endoreduplication in Chinese hamsters V79 cells by cytosine arabinoside.

Endoreduplication (ER) could be induced very effectively in Chinese hamster V79 cells exposed to cytosine arabinoside (1-beta-D-arabinofuranosylcytosine; Ara-C). Cells were cultured for 48 hours in Ara-C containing medium. ER frequency increases rapidly after Ara-C release. About 60% of metaphase cells were endoreduplicated at 8-10 hours after release from Ara-C (5 micrograms/ml). Induction of ER also depends on Ara-C concentrations.

Animals↗
PubMed1983

Tissue-specificity of reactivity to concanavalin-A of human cells in culture.

Concanavalin-A (Con-A) reactivity was studied to identify the tissue-specificity of cells established from various normal human tissues. Cells were treated with Con-A-labelled human red blood cells (C-RBC). C-RBC was not absorbed on the cells derived from the bone marrow, skin and liver. Lung-derived fibroblast cells showed weak C-RBC adsorption. Kidney-derived cells showed epithelial morphology and easily adsorbed C-RBC. These suggest that a large number of Con-A receptors exists on the membrane surface of kidney cells.

Adolescent↗
PubMed1982

Measurements of radionuclides induced in the accelerator structure of the KEK-PS.

Radionuclides induced in accelerator structures were measured during each long shut-down by using a pure Ge detector and a portable multichannel pulse height analyzer. Variation in the nuclide composition for various points in the accelerator tunnel was investigated. The decay of the exposure rate was calculated using the measured nuclide composition. Radionuclide measurements of the vacuum chamber removed from the accelerator were also performed. The relation between the variation of the residual exposure rate and that of the nuclide composition was examined and it was found that the proportion of 48V, 54Mn and 56Co corresponds to variation in the beam loss pattern.

Particle Accelerators↗
PubMed1981

Postcontrast computed tomography in subarachnoid hemorrhage from ruptured aneurysms.

Computed tomography (CT) scans of 49 patients with subarachnoid hemorrhage (SAH) secondary to ruptured aneurysms were reviewed. Subarachnoid blood was detected in 95% when CT was performed within 5 days after the bleeding. Prediction of the site of the ruptured aneurysm from distribution of the cisternal blood varied from 92% for the anterior cerebral artery aneurysms to 70% for the middle cerebral and 47% for the internal carotid artery aneurysms. Following plain CT scans, postcontrast studies were performed in 27 patients. Aneurysms were directly visualized in 8 cases and subarachnoid enhancement was noted in 21. In 3 cases, subarachnoid enhancement made possible a correct diagnosis of SAH in the absence of evidence of cisternal blood on precontrast CT scans.

Adult↗