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간경변증 환자의 말초혈액단핵구에서 중합효소연쇄반응법을 이용한 Cytomegalovirus DNA 의 검출
문종호(Jong Ho Moon),유창범(Chang Beom Ryu),박철호(Cheol Ho Park),류권호(Kwon Ho Ryu),박찬욱(Chan Wook Park),이준성(Joon Sung Lee),이문성(Moon Sung Lee),조성원(Sung Won Cho),황승덕(Seung Deok Hwang),심찬섭(Chan Sup Shim),이희발(Hi Ba 대한내과학회 1995 대한내과학회지 Vol.49 No.6
Objectives: Human cytomegalovirus(CMV) infections are common and usually asymptomatic, but fatal infections occur frequently in immunocompromised patients. In Korea, CMV infection is common and patients with liver cirrhosis are frequently in a condition of immunosuppression, may predispose to the frequent occurrence of CMV infections. The purpose of this study was to investigate the prevalence of CMV infection in patients with liver cirrhosis and to evaluate the relationship between the status of C3:IV infection and liver function. Methods, The subjects of this study were 36patients with liver cirrhosis, 4patients with non A, non B, non C(NANRNC) hepatitis, and 13normal controls. IgG and IgKI antibodies to CMV were measured using a microparticle enzyme immunoassay(MEIA). Specimens of urine were cultured for CMV using shell vial culture method. Peripheral blood mononuclear cells(PBMC) were investigated for the presence of CMV-DNA using PCR. Rusults: In CMU antibody test, IgM and IgG antibodies were detected in 7(19.4%) of 36patients with liver cirrhosis, IgG antibody was detected in the other 29patients and all control subjects. In shell vial culture, CMV was cultured in 1(2.8%) of 36patients with liver cirrhosis(IgM and IgG positive). CMV DNA was detected by PCR in 19(52.8%) of 36patients with liver cirrhosis, but 1(7.7%) of 13 control subjects (p<0.05). CMV DNA was detected in 6(85.7%) of 7cirrhotic patients with IgM and IgG antibodies positive, 13(44.8%) of 29cirrhotic patients with IgG antibody positive. CMV DNA positive cirrhotic patients show 5(26.3%) in Child A, 6(31.6%) in Child H, 8(42.1%) in Child C. CMV DNA negative cirrhotic patients show 4(23.5%) in Child A, 12(70.6%) in Child B, 1(5.9%) in Child C(p<0.05). CMV DY:A positive cirrhotic patients showed the tendency of more frequent detection of HBsAg and HBeAg than CMU DNA negative cirrhotic patients(p<0.05). Conclusion: These results suggest that CMV infection is common in cirrhotic patients and the CMV DNA positive patients with liver cirrhosis have more impairment of liver function than the CMV DNA negative patients with liver cirrhosis.
오류확률의 분삭값을 이용한 터보부호의 효율적인 반복복호 중단조건
심병섭,정대호,김환용 원광대학교 공업기술개발연구소 2002 工業技術開發硏究誌 Vol.22 No.-
It is well known the fact that the BER performance improves through the iterative decoding and the MAP algorithm in an AWGN channel environment. However, as the number of iterations is increased, it is required much decoding delay, computation, and power consumption for an iterative decoding. In this paper, it proposes the efficient iterative decoding stop criterion using the variance value of the error probability. It is verifying that the proposal iterative decoding stop criterion can be reduced the average iterative decoding number compared to conventional schemes with a negligible degradation of the error performance.
심찬섭,김병광,이정호,박희숙,박춘식,정무찬,이희발,이혜경 순천향대학교 1984 논문집 Vol.7 No.3
Simple abdominal X-rays that included kidneys, ureters, and bladder(KUB) were obtained in 557 outpatients to investigate the frequency of conctipation and its relation to various abdominal symptoms. Four-hundred and six patients presented with various abdominal symptoms as their chief complaints and the remaining 151 patients had other symptoms. The distribution of fecal material within the large intestine was scored and the fecal retention was classified as mild, moderate, and severe. Chief complaints and final diagnosis when established failed to predict the severity of fecal retention but moderate or severe fecal retention was observed in 64% of all patients and in 61% of 265 patients in whom no other cause of abdominal was identified. Constipation as defined by moderate or severe fecal retention on KUB may or may not be symptomatic but may be a much more common cause of various abdominal symptoms in Koreans than has been known. A KUB may be a simple and inexpensive tool in the diagnosis of constipation.
Photocycloaddition of 5,7-Dimethoxycoumarin to 5-Fluorouracil
Shim, Sang-Chul,Ra, Choon-Sup,Chae, Kyu-Ho Korean Chemical Society 1980 Bulletin of the Korean Chemical Society Vol.1 No.4
$C_4$-Photocycloaddition of 5,7-dimethoxycoumarin(DMC) to 5-fluorouracil(5-FU) was studied in frozen aqueous solution. The major photoproduct was diagnosed and isolated by TLC and column chromatography. The structure of isolated photoproduct was identified as a $C_4$-cycloaddition product of DMC and 5-FU by the characteristics of its UV, IR, NMR, mass spectra, elemental analysis, and photosplitting.