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김강영,김종봉 한국생명과학회 1999 생명과학회지 Vol.9 No.6
This research was for investigating the physiological effect caused by genetic disorder and others. Serum protein, serum LDH, and serum CPK were analyzed on Fragile X syndrome patients, carriers, unclassified mental retardees, and Down's syndrome patients by cellulose acetate plate electrophoresis. Also enzyme activity of LDH and CPK were measured. Significant differences were observed between normal group and mental retardees in compositions of serum protein, serum LDH, serum CPK, and enzyme activities. Mean percentages of albumin were 53.70$\pm$7.73% for Fragile X syndrome patients, 57.09$\pm$7.73% for carriers, 47.33$\pm$6.06% for unclassified mental retardees, 50.19$\pm$ 15.72% for Down's syndrome patients. Mean percentages of ${\gamma}$-globulin were 19.64$\pm$6.71% for Fragile X syndrome patients, 19.24$\pm$3.38% for carries, 25.66$\pm$4.74 for unclassified mental retardees, 23.41$\pm$6.08% for Down's syndrome patients. Mean percentages of LDH3 were 27.76$\pm$2.72% for Fragile X syndrome patients, 22.70$\pm$2.76% for carriers, 25.42$\pm$1.26% for unclassified mental retardees, 27.72$\pm$2.58% for Down's syndrome patients. Mean percentages of LDH4 were 2.70$\pm$2.04 for Fragile X syndrome patients, 3.79$\pm$2.74% for carriers, so both of them were significantly lower than normal(P<0.05). Mean percentages of CK-MB were 3.96$\pm$5.56% for Fragile X syndrome patients, 8.80$\pm$7.92%. Mean percentages of CK-MM were 95.81$\pm$5.50% for Fragile X syndrome patients, 91.20$\pm$7.92% for carriers. These results showed that significant abnormal compositions of blood proteins might be caused by genetic disorder. However, further analysis of many patients will be needed for clear conclusion.
김강영,윤인숙,김종봉,진동규 한국생명과학회 1999 생명과학회지 Vol.9 No.6
This research was carried out for evaluating diagnostic value of antibody test in Fragile X syndrome. In antibody test of control individuals and carriers with a premutation, FMRP were detected in the lymphocytes, whereas the lymphocytes of male Fragile X syndrome patients were devoid of FMRP. Five Fragile X syndrome male patient, two Fragile X syndrome female patients, three carriers were diagnosed by southern blot. Five boys who were diagnosed as the patients by antibody test were turned out full mutation and having multiple smear beside normal single band. However, fragile site of X chromosome was not expressed in Fragile X syndrome patients by chromosome analysis. These results showed that antibody test was a fast and simple method, but the diagnostic power was "perpect" for males, whereas the results were less specific for females.r females.
김강영,최영길 ( Kang Young Kim,Yong Keel Choi ) 한국하천호수학회 1990 생태와 환경 Vol.23 No.2
In order to clarify the effects of heavy metals on cellulose degradation by aquatic bacteria, highest cellulolytic bacterium was isolated and determined minimum inhibitory concentrations of 7 metal ions (As, Cd, Cr, Hg, Mn, Ni, Pb). Cellulolytic bacteria were about 20∼90% ranges among total heterotrophic bacteria at 5 sites in Han River. Psuedomonas fluorescens was identified the highest cellulolytic bacterium. Minimum inhibitory concentrations of each metal ions in tested strain were As, 5.0; Cd, 0.125; Cr, 1.25; Hg, 0.00625; Mn, 1.25; Ni, 0.5; and Pb, 1.25 mM, respectively. Treated heavy metal ions were decreased cellulolytic activity as follows: Hg, 75∼80%; Cd, 50∼55%; Cr, 45∼52%; Pb, 36∼45%; As, 32∼34%; Ni, 22∼29 %, and Mn 13∼22%, respectively.
한국인 Fragile X 환자들의 Lactic Dehydrogenase에 관한 연구
김종봉,윤인숙,김강영 대구효성가톨릭 대학교 1997 연구논문집 Vol.54 No.2
This study was conducted to determine physiological characteristics of Korean unclassified mental retardees. The results were as follows. Fragile X chromosomes were identified in three patients, and the frequencies of fragile X chromosomes were 4∼15%. In fragile X syndrome patients and unclassified mental retardees, the serum LDH activity was 147.66±24.58(IU/L), 171.22±53.08(IU/L) respectively. The results revealed lower level of the serum LDH activity in fragile X syndrome patients and unclassified mental retardees than in Down' syndrome patients and control group.
Low-folate medium에서 선천성 정신박약인의 염색체 이상빈도
전소영,김강영,김종봉 대구효성가톨릭대학교 자연과학연구소 1994 基礎科學硏究論集 Vol.8 No.-
Frequency of chromosomal aberrations of mental retarders was investigated in low-folate medium. A total of 3800 metaphase cells were screened and the mean frequency of chromosomal aberrations was 3.65% . The frequncy of chromosomal aberrations was also analyzed with respect to the sex, age and 1.Q..However, no significant difference was found among these factors.