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위 전절제술을 받았던 환자에서 아급성 연합성 변성 1예
한정호,하현욱,이정석,송은향,김우정,김두응,최진영 건국대학교 의과학연구소 2000 건국의과학학술지 Vol.10 No.-
Subacute combined degeneration is a metabolic disorder of the spinal cord caused by vitamin B12 deficiency. A 72-year old man was admitted with weakness and tingling sensation of the bosh upper extremities. 9 years ago, he was diagnosed as having stomach cancer. So total gastrectomy with splenectomy was done at that time. The complete blood cell counts and morphology revealed megaloblastic anemia. Nerve conduction velocity study(NCV), electoromyography(EMG) and somatosensory evoked potentials(SEP) showed diffuse sensorimotor peripheral neuropathy. Magnetic resonance imaging(MRI) showed an increased T2-weighted signal, mild decreased T1-weighted signal, and slight contrast enhancement of the posterior columns of the cord in the cervical and upper thoracic spinal region. He was treated with vitamin B12 supplements and improved gradually. If abnormal sensation and muscle weakness was developed after gastrointestinal surgery, subacute combined degeneration should be considered in the differential diagnosis. We describe MRI findings of a typical case of subacute combined degeneration, which was induced by total gastrectomy.
이정희,김한두 인제대학교 2008 仁濟論叢 Vol.23 No.1
이 논문에서 삼중대각행렬을 이용한 GF(2^(p)) CA의 특성을 분석한다. In this paper, we investigate some properties of GF(2^(p)) CA by a tridiagonal matrix..
김두화,박정환,한도수,허선아,김성현,조성동 조선대학교 기초과학연구소 1992 自然科學硏究 Vol.15 No.1
The reaction of Asymmetrical organotins with acid chlorides in the presence of Benzylbis (triphenylphosphine) palladium(Ⅱ) chloride gave good yields of ketones in chloroform.
포름알데하이드에 폭로된 해부학 실습 학생들의 임파구 자매염색분체교환
백두진,주수자,김기영,이수진,심상효,손정일,심성한,송재철,조율희 大韓産業醫學會 1998 대한직업환경의학회지 Vol.10 No.2
Sister-chromatid exchanges measured in the peripheral lymphocytes of 15 non-smoking medical students after exposure to formaldehyde during 24-week anatomy class showed a small but significant (p=0.0468) increase when compared with samples obtained from the same individuals immediately before exposure. Mean frequencies of sister-chromatid exchange of cultured peripheral lymphocytes were 5.40±0.24 from the samples before exposure and 5.87±0.22 from the same samples after exposure. Breathing-zone air samples collected by formaldehyde monitoring kit with digital colorimeter(SKC) showed a mean concentration of 0.72±0.02 ppm formaldehyde.
김한두,이정희 인제대학교 2007 仁濟論叢 Vol.22 No.1
In this paper, we analyze complemented Cellular Automata(CA) derived from a linear uniform group CA with rule 60.
鄭然斗,韓世範,李正閏 三陟大學校 1999 論文集 Vol.32 No.1
This paper presents a study on the effect of the operating conditions on the traction characteristics of differential type traction drive. The cross roller type traction drive was used to observe the speed ratio and the power transmission efficiency of traction drive. The effects of spin motion and the power transmission efficiency between two tapered rollers of the traction drive are discussed and experimented. It is shown that the power transmission efficiency can increase up to 53% in the case of an experimental traction drive. the traction surface roughness of the tapered roller was also measured and observed by scanning electron microscope. On the basis of these results, the effects of specific sliding, roller speed, load, and contact pressure were clarified to a considerable extent.
하현욱,한정호,이정석,송은향,김우정,김두응,최진영 건국대학교 의과학연구소 2000 건국의과학학술지 Vol.10 No.-
Pure primary medullary hemorrhage is a rare condition, which is characterized by ipsilateral hypoglossal nerve palsy and contralateral hemiparesis. The hemorrhage usually extended to medial and ventral medulla, these two characteristic signs distinguished from the classical presentation of Wallenberg's lateral medullary syndrome. A 53-years-old man was admitted with sudden onset left sides weakness and vertigo. Neurologic examination showed dysarthria, mild dysphagia, Horner syndrome of right side, spontaneous horizontal jerking nystagmus to left side and right deviation of tongue at protrusion. Pain and temperature sensation of left trunk, left extremity and right face were decreased. Brain CT scan and brain MRI revealed focal hemorrhage in the right medulla. We report a case of pure primary medullary hemorrhage with undetermined etiology.
All-Trans Retinoic Acid에 의한 HL-60 세포 분화유도중 H2B Histone, c-Myc 및 DNA Topoisomerase I 발현에 관한 연구
임규,박정동,최병한,이용진,김계영,이명선,장은미,김삼용,권기량,곽상태,황병두 忠南大學校 癌共同硏究所 1998 癌共同硏究所 硏究誌 Vol.2 No.1
Effects of all-trans retinoic acid(retinoic acid) on DNA replication, H2B histone and DNA topoisopmerase I(Topo I) gene expression have been investigated in human promyelocytic leukemia cell line HL-60. DNA synthesis decreased at 24 hours after exposure of retinoic acid in the HL-60 cells. H2B histone mRNA rapidly reduced at 48 hours and Topo I and c-myc mRNA at 24 hours in retinoic acid-exposured HL-60 cells, respectively. The levels of c-myc, H2B histone and Topo I gene expression were reduced in proportion to the concentration of retinoic acid. The H2B histone mRNA in retinoic acid-exposured cells was elevated by cycloheximide treatment, while the level of Topo I mRNA was constant. These results suggest that regulations of H2B histone, c-myc and Topo I gene expression are different from one another, and repression of Topo I gene is closely correlated with c-myc gene during retinoic acid-induced differentiation of HL-60 cells.
흔치않은 대상포진 치험 2예 : 비전형적 부위와 다른 부위로 재발한 예 Unusal Dermatome and Recurs Other Dermatome
김정미,조은경,조정선,최용석,한영수,한정호,김두응,최진영 건국대학교 의과학연구소 2004 건국의과학학술지 Vol.14 No.-
Herpes zoster is well known as an acute, self-limited disease of unilateral sensory dermatome caused by varicella-zoster virus and characterized by grouped vesicular skin eruption and pain over several dermatomes as well as single. This virus usually affects the thoracic dermatome and there are a few reports that this virus involves lower lumbar or sacral area, and recurrent cases. We experienced 2 cases that zoster virus involved L4 or S2 dermatome and left typical skin lesions, of which one was a recurrent case involving different dermatome at an interval of 8 years and the other was a rare case involving sacral dermatome.