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이오파미돌 척수강조영술과 병행한 전산화단층촬영술에 의한 요추강 협착증의 병태학적 관찰
이우석,안병규,최선길,강성구 대한신경외과학회 1987 Journal of Korean neurosurgical society Vol.16 No.2
This study has been examined different morphologic measurements in the evaluation of patients with lumbar spinal stenosis. Preoperative CT-Myelography from 30 patients who underwent surgery for central lumbar stenosis were analyzed. Based on this study, we concluded as follows; 1) Bony measurements alone did not reliably identify patients with spinal stenosis. 2) Measurement of the transverse area of the dural sac on CT-Myelography was the most accurate method for identifying stenosis. 3) Lumbar myelography was still considered to have an important role in the evaluation of a patient with stenosis because of correlation between the cross-sectional area of the dural sac and the anteroposterior diameter of the dural sac was excellent. 4) We identified soft-tissue problems as the main cause of stenosis. 5) The most common level of maximum stenosis was L4-5.
이우석,박정덕,정규철 중앙대학교 의과대학 의과학연구소 1989 中央醫大誌 Vol.14 No.1
Effects of cadmium on ATPase activities were studied in microsomal fractions obtained from liver, kidney and testis of rats. The total ATPase activities were 5.829 ± 0.141 (S.D.) μmol/mg protein/hr, 35.992 ± 1.304μmol/mg protein/hr and 46.046 ± 0.961 μmol/mg protein/hr in microsomes of normal liver, kidney and testis, respectively. The total activities of liver and kidney microsomes were inhibited by 34.4% and 39.60%, respectively, by addition of 2 mM ouabain but that of testis was not influenced by ouabain. The inhibition of microsomal ATPase activity by cadmium were dose-dependent in the range of concentrations from 0.05 mM to 3.0 mM. The concentrations of cadmium causing 50% inhibition (I_so) of ATPase activity were calculated by probit method. Cadmium concentrations causing 50% inhibition of total ATPase activity were found to be 0. 458 mM, 0.310 mM and 0.730 mM in liver, kidney and testis, respectively. Ouabain insensitive (Mg^++-) ATPase of liver, kidney and testis were inhibited 50% by Cd in concentrations of 1.460 mM, 0.970 mM, 0.310 mM and 0.730 mM in liver, kidney and testis, respectively. Ouabain insensitive (Mg^++- ) sitive to Cd and were inhibited 50% in microsomes of liver and kidney by Cd concentrations of 0.086 mM and 0.058 mM, respectively. Thus ouabain-sensitive (Na^+, K(^+)-) ATPasc was 17 times more susceptible to cadmium than ouabain-insensitive (Mg(^++)- ) ATPase.