Synthetic genes encoding the gag p24 and the part of the envelope protein gp41 of the human immunodeficiency virus (HIV-1) were cloned and overexpressed as fusion proteins in Escherichia coli, using an expression vector carrying 77 promoter and the poly-histidine leader sequence. The overexpressed p24 fusion protein was purified by centrifugation, Ni-affinity chromatography and CM-sepharose chromatography The overexpressed gp41 fusion protein was purified by centrifugation, C4 chromatography and DEAE-sepharose chromatography. The purified fusion proteins showed a high level of purity and immunoreactivity in SDS-polyacrylamide gel electrophoresis and western blot analysis. These results suggest that this prokaryotic expression-purification method is suitable for obtaining a large amount of the viral antigen which may be useful for screening of antibodies to HIV-1 in human blood samples.
Antibodies ; Blotting, Western ; Centrifugation ; Chromatography ; Clone Cells ; Electrophoresis ; Escherichia coli ; Genes, Synthetic ; HIV* ; HIV-1* ; Humans* ; Mass Screening

Clinical studies on thirteen patients with Behcet's syndrome who had visited during the period from Jan. 1970 to Sep. 1973, to the Department of Dermatology & Ophthahnology, Busan National University Hospital, were made and the following results obtained. 1) The ratio of male vs. female was l. 0: l. 6 with no definite sexual differences. The ages ranged from 17 to 56 years with the peak incidence in third decade of life. 2) The "complete" form consisting of oculo- oro-genital and cutaneous lesions appeared in . 4 patients (30. 8%) and the "incomplet" in 9 patients (69. 2%). 3) Aphthous stomatitis was most predominant, being observed in 12 out of all 13 cases (92.3%), the next was cutaneous manifestations such as erythema nodosum, pyodermas, acneiform & pustular lesions and erythema multiforme in 10 cases (76. 1%) and genital ulcers in 9 cascs (69.2%). Ocular lesions and articular involvements came fourth, each being found in 8 cases (61. 5%). 4) The commonest feature of ocular involvement was relapsing iridocyclitis, being observed in 57. 7% and the disease led to a bilateral loss of vision in 38. 4% 5) Single or combined therapy including corticosteroids and antimicrobials gave transient conservative effects and was of no value to prevent recurrent attacks.
Adrenal Cortex Hormones ; Behcet Syndrome* ; Busan ; Dermatology ; Erythema Multiforme ; Erythema Nodosum ; Female ; Humans ; Incidence ; Iridocyclitis ; Male ; Pyoderma ; Stomatitis, Aphthous ; Ulcer

Three cDNA fragments located within NS5 region of HCV were synthesized by RT using viral RNA extracted from blood sample of Korean patient as a template. The cDNAs were amplified by PCR, cloned into the T-vector, and the nucleotide sequences were determined. Comparative a analysis of the nucleotide and amino acid sequence of NS5 cDNAs showed that it is closely related with HCV type 1b. The cloned NS5 cDNA showed 91-94% homology at the nucleotide sequence level and 96-98% homology at the amino acid sequence level with several strains of the HCV type 1b. The NS5 cDNAs were subcloned into E. coli expression vectors to construct pRSETA5-1, pTHAN5-1, pRSETC5-2, pRSETBB1, pRESTCB1 and PRSETB-H3. Expression of the NS5 proteins was achieved by inducing the promoter with isopropyl-thio-P-D-galactoside (IPTG) and confirmed by SDS-polyacrylamide gel electrophoresis. The NS5 proteins were immunoreactive against sera from Korean hepatitis C patients in Western blot analysis. Among the recombinant NS5 proteins, pRSETA5-1 plasmid derived protein, coded from aa2022 to aa2521 of HCV polyprotein, showed the strongest immunoreactivity against sera from Korean hepatitis C patients in immunoblot analysis. These results suggest that NS5 proteins would be useful as an antigen for detection of antibody against HCV in the blood samples.
Amino Acid Sequence ; Base Sequence ; Blotting, Western ; Clone Cells* ; Cloning, Organism* ; DNA, Complementary ; Electrophoresis ; Hepacivirus* ; Hepatitis C* ; Hepatitis* ; Humans ; Plasmids ; Polymerase Chain Reaction ; RNA, Viral

This survey was conducted to investigate Farmers' Syndrome and its related factors in Chonnam province. 5,920(men 6,148, women 6,722) persons in urban area and 12,870(men 6148, women 6,722) persons in rural area were selected in stratified cluster sampling manner, and interviewed individually with structured questionnaire in April, 1992. The results were summarized as follows: 1. In rural area of Chonnam province, the prevalence of Farmers' syndrome positive was 283 per 1,000 persons(203 in male, 355 in female). In urban area of Chonnam province, control area, the prevalence of Farmers' syndrome positive was 113(72 in male, 145 in female). The prevalence of Farmers' syndrome positive in rural area was 2.5 times higher that of urban area, and the prevalence in female was 1.7 times higher than that of male. The prevalence in total respondents was 256. 2. In rural area of Chonnam province, the age standardized prevalence of Farmers' syndrome positive was 209 per 1,000 persons(140 in male, 267 in female). In urban area of Chonnam province, control area, the age standardized prevalence of Farmers' syndrome positive was 122(79 in male, 158 in female). The age standardized prevalence in total respondents was 194. 3. The associated factors with Farmers' syndrome in univariate analysis were having illness during recent 15 days ,age, sex, occupation, area, monthly income, education, medical security status, family size and duration of farming. 4. When applying multiple logistic regression for Farmers' syndrome, the significant variables were having illness during recent 15 days, area, sex, age, education, medical security status, family size and duration of farming.
Surveys and Questionnaires ; Education, Medical ; Epidemiologic Studies* ; Family Characteristics ; Female ; Humans ; Jeollanam-do* ; Logistic Models ; Male ; Occupations ; Prevalence ; Surveys and Questionnaires

In order to develop the measuring tool of VDT syndrome and investigate the variables affecting the development of VDT syndrome, a questionnaire study accompanied with the evaluation of working environment was performed with 138 VDT users from six public organs in Kwangju area. The result were summarized as follows: 1. As a result of analysis with data collected by newly developed questionnaire, VDT syndrome included five factors named as eye-related component, psychological component, general body component, musculoskeletal component, and skin-related component and the estimates of the internal consistency of five factors were 0.877, 0.820, 0.796, 0.791, 0.593 respectively. 2. Variables affecting the level of eye-related symptoms were the type of main job using VDT, the total time of VDT operation per day, and the use of external filter on CRT. 3. The level of eye-related symptoms in the group using external filter was higher significantly than that in the group not using filter. 4. The past history of severe illness affected the level of psychological symptoms significantly. 5. Variables affecting the level of general body symptoms were job satisfaction and income satisfaction. 6. Variables affecting the level of musculoskeletal symptoms were the type of main job using VDT, whether majored in EDPS, the level of typewriting, job satisfaction, and the total time of VDT, operation per day. 7. Age and the use of external filter were significantly related to the level of skin-related symptoms. 7. Age and the use of external filter were significantly related to the level of skin-related symptoms.
Factor Analysis, Statistical ; Gwangju ; Job Satisfaction ; Surveys and Questionnaires

Coronary restenosis is still regarded as Achilles' Hill of interventional cardiology despite relentless efforts of many investigators. Recent experimental and clinical studies have suggested that both gamma and beta radiation can be reduce restenosis after angioplasty. Currently, intracoronary brachytherapy for the prevention of restenosis has become a new evolving treatment modality in interventional cardiology. This report discusses a physical aspect of gamma and beta radiation, initial clinical results and delivery systems used in intracoronary brachytherapy. We shall take a brief overview of methods and their advantages in intracoronary brachytherapy. Future work should provide further insight for the best way of treating restenosis.
Angioplasty ; Beta Particles ; Brachytherapy ; Cardiology ; Coronary Restenosis ; Humans ; Research Personnel

No abstract available.
Liver Cirrhosis* ; Liver* ; Polycythemia Vera* ; Polycythemia*

An analysis was performed to evaluate the problems in Emegency Medical Service System(EMSS) through the review of the 119 transport chart of 1,229 patients who visited to emergency center of Chonnam University Hospital via 119 system during the period from January 1998 to December 1998. The results were obtained as follows: 1) 1,229(4.9%) of the 25,253 patients were transported to emergency center via 119 system. Among 1.229 patients, male were 691(56%) and female 538(44%), and nontraumatic patients were 946(77%) and traumatic patients 283(23%). The peak age was 5th to 6th decades. 2) Mean arrival time to scene(ambulance response time) was 4.8 +/-.8minutes and mean arrival time to hospital 19.6 +/-0.1minutes. In the distribution of the requested place for ambulance, 73% was house and 23% was field. 3) In the severity of patients, 154(12.5%) patients were classified into emergent, 442(36%) into urgent, and 633(51.5%) into non-emergent. Among 1,229 patients, number of patients admitted were 419cases(34.1%), operated 85(6.9%), discharged in emergency department 536(43.6%), dead 70(5.7%), and transferred 119(9.7%), respectively. 4) The assessment of prehospital treatment by Emergency Medical Technician(EMT) revealed that checking the vital sign was only 49.5%, and prehospital care was limited to airway management, O2 inhalation and immobilization. There was no case of the notification to medical institute or the consultation to doctor. These results show that over the half of patients transported to level III emergency center via 119 system were classified into non-emergent and the prehospital management of the patient by EMT was not adequate. This study suggests the need of more simple and objective triage guideline for patient transport, the improvement of prehospital care system, and reconstruction of the computerized communication system.
Airway Management ; Ambulances ; Emergencies ; Emergency Service, Hospital ; Female ; Humans ; Immobilization ; Inhalation ; Jeollanam-do ; Male ; Triage ; Vital Signs

The traffic accident was one of most common cause for the facial bone fracture. When it involved the midfacial structures, the nasal bone fracture was usually shown. If the reduction was not done in time, it would result in facial deformity. Simple case could be corrected by simple rhinoplasty. However, severe cases would require more invasive technique. We used triangular osteotomy included the nasal bones, the vomer, and the medial wall of maxilla for the correction of post-traumatic nasal deformity and reported the result with the review of literatures.
Accidents, Traffic ; Congenital Abnormalities* ; Facial Bones ; Maxilla ; Nasal Bone ; Osteotomy* ; Rhinoplasty ; Vomer

BACKGROUND/AIMS: To compare treatment outcome of hepatocellular carcinoma(HCC) under the size of 5 cm in relation to underlying liver function and treatment modalities, analysis of data from 145 patients was performed. METHODS: In this study, the records of 145 patients with small HCC (< 5 cm in diameter determined by hepatic angiography) were reviewed. Clinical parameters were analyzed and survival rate, recurrence rate were calculated. RESULTS: There were 107(73.8%) men and 38 women. Mean age at diagnosis was 55.1(range .' 25 83 year-old). HBsAg was detected in 97(66.9%) patients. Seventy two(50.0%) patients showed markedly elevated(>40 ng/mL) serum alpha-fetoprotein(AFP) level. Liver cirrhosis was associated in 109(75.2%) patients. Sixty five(44.8%) patients underwent surge, 63(43.5%) underwent transarterial therapy(TAT), 8(5.5%) underwent other modalities of therapy and the remaining 9(6.2% ) patients did not receive any specific treatment for HCC. In relation to the underlying liver function, 119(82.1% ) patients belonged to the non-cirrhotic or Child-Pugh class A, 20(13.8%) to class B and 6(4.1%) to class C. The median follow-up duration was 21 months. When analyzed with respect to treatment modalities alone, median survival was 43 months for all patients, 60 months for surgery, 29 months for TAT, 20 months for other treatment and 18 months for patients who received no specific treatment. Without considering liver function, cumulative 3 year survival rate was 68.6% for surgery, 43.9% for TAT, 29.2% for other treatment and 0% for no treatment. The survival rate for the patients who underwent surgery was significantly higher than for any other treatment modalities without considering the underlying liver function or in the non-cirrhotic/Child-Pugh class A(p<0.001). In patients whose tumor size was equal to or less than 3 cm, there was no difference in survival rate in relation to the treatment modalities when not considering the underlying liver function of each patient(p>0.05). But in patients classified as the non-cirrhotic/Child-Pugh class A, better survival was observed in the surgep group than the TAT group(p<0.05). The only factor influencing survival was the pre-treatment serum AFP level(p<0.05). The overall recurrence rate was 30.3%. For the entire patients, the factor significantly influencing the recurrence rate was the presence of underlying cirrhosis. When considering only the patients in the surgery group, the different types of surgical procedures significantly influenced the recurrence rate. CONCLUSION: Surgery is the treatment of choice for patients with HCC equal to or smaller than 5 cm. But for those patients whose tumor size is less than 3 cm, TAT may be a reasonable alternative to surgep when the liver function is not adequate for hepatic resection. Because overall recurrence rate exceeded 30% and median time of recurrence was only 9.5 months after definitive treatment, careful follow-up is required for all patients who undergo treatment for small HCC.
Carcinoma, Hepatocellular* ; Diagnosis ; Female ; Fibrosis ; Follow-Up Studies ; Hepatitis B Surface Antigens ; Humans ; Liver Cirrhosis ; Liver* ; Male ; Recurrence ; Survival Rate ; Treatment Outcome*