1.In vitro Transcription of Prospect Hill virus S Genome Segment Produced by RT-PCR.
Pyung Woo LEE ; Man Seong PARK
Journal of the Korean Society for Microbiology 1998;33(1):39-48
Prospect Hill virus (PHV) is related antigenically but distinct to Hantaan virus. As a member of genus Hantavirus, PHV has three segmented RNA genome. Among these segments, Small segment(S) encodes nucleocapsid protein (NP) as structural protein and also may do functional nonstructural protein(NSs). We performed in vitro transcription to produce vRNA of PHV S genome. For the first step of in vitro transcription of S genome of PHV, the S RNA segrnent which is 1,675 nucleotides long was amplified by RT-PCR using PCR primers built according to cDNA sequence of PHV S genome. Next, a new PCR primer appended above downstream primer to T7 phage promoter sequence was reconstructed to obtain PCR product containing T7 promoter. Then another PCR was performed. Using this PCR product as the template, in vitro run-off transcription without cloning by transcriptional vector was performed to obtain viral- sense RNA transcript. Thereafter, the size of transcript was assessed by running on formaldehyde agarose gels. Since the transcription reactants contain a-S UTP, the transcript is detectable by autoradiography. The transcript was also detectable by northern hybridization with a-P dCTP- labelled PHV amplicon probe (319 bp) and the initiation start point of run-off transcription was also determined by primer extention analysis. Our data indicate that the in vitro transcript could be produced from the PCR product amplified by PCR primer containing T7 phage promoter without cloning into a phage transcription vector.
Autoradiography
;
Bacteriophage T7
;
Bacteriophages
;
Clone Cells
;
Cloning, Organism
;
DNA, Complementary
;
Formaldehyde
;
Gels
;
Genome*
;
Hantaan virus
;
Hantavirus
;
Nucleocapsid Proteins
;
Nucleotides
;
Polymerase Chain Reaction
;
RNA
;
Running
;
Sepharose
;
Uridine Triphosphate
;
Viruses*
2.A Case of Iron Deficiency Anemia with Hypoproteinemia.
Journal of the Korean Pediatric Society 1988;31(8):1054-1058
No abstract available.
Anemia, Iron-Deficiency*
;
Hypoproteinemia*
;
Iron*
3.The Multiplex RT-PCR for the Serotyping of Hantaviruses.
Pyung Woo LEE ; Man Seong PARK
Journal of the Korean Society for Microbiology 1998;33(5):451-461
Hantaviruses are negative-strand RNA viruses that contain three segmented genome and belong to the family Bunyaviridae. Due to such an unique structure of segmented RNA genome, these viruses have a possibility to produce reassortant that have genomic sets mixed with different segments originated from both parental virus during the genetic interaction. To investigate whether this phenomenon occurs actually, Hantaan virus (HTN) could be coinfected with Seoul virus (SEO) to Vero-E6 cell. And also, HTN could be coinfected with Prospect hill virus (PH) to investigate the rate of genetic reassortment according to the genetic distance among the HTN, SEO and PH viruses. As a available method to differentiate the reassortant, we used the multiplex RT-PCR that detect and differentiate the serotype of hantaviruses in mixed infection. Each progeny clone could be screened by multiplex RT-PCR. So, we have constructed the multiplex RT-PCR system that separated amplifications for each segment of Hantaviruses. Our multiplex RT-PCR system provide sensitive, specific and simplified tools for the rapid differentiation of hantaviruses serotypes and also the diagnosis of Hantavirus infections.
Bunyaviridae
;
Clone Cells
;
Coinfection
;
Diagnosis
;
Genome
;
Hantaan virus
;
Hantavirus Infections
;
Hantavirus*
;
Humans
;
Hydrogen-Ion Concentration
;
Parents
;
RNA
;
RNA Viruses
;
Seoul virus
;
Serotyping*
4.The Association Between Degenerative Arthritis of the Lumbar Spine and Obesity
Woo Chun LEE ; Moon Sik HAHN ; Choon Seong LEE
The Journal of the Korean Orthopaedic Association 1982;17(6):1080-1088
Degenerative arthritis of the lumbar spine is one of the main causes of the low back pain over the fifth decade of life. Nowadays, it seems that the number of obese person increases gradually and the role of Obesity in the development of articular degeneration remains controversial. The authors studied 100 cases of the primary degenerative arthritis of the lumbar spine clinically and statistically and compared 50 cases among these with 2 control groups, with and without low back pain, from Mar. 1982 to Sep. 1982. The results were as follows: 1. Among the patients with the degenerative arthritis of the lumbar spine, the ratio of male to female was 1:4, and the age group with the highest frequency was the 6th decade (47%) 2. 44% was obese in the arthritis group and 26% in the control group with low back pain and 12% in the control group without low back pain. 3. The relative risk of the hypothesis that the arthritic patient is obeser than the patient with low back pain but without degenerative changes on X-ray was 2.3, but the hyposthesis was proved to be statistically insignificant. The relative risk of the hypothesis that the arthriticpatient was obeser than the patient without low back pain and degenerative changes on X-ray was 6.3 and proved to be statistically significant.
Arthritis
;
Female
;
Humans
;
Low Back Pain
;
Male
;
Obesity
;
Osteoarthritis
;
Spine
5.Clinical analysis of Krukenberg tumor: a review of 18 cases.
Yong Wook KIM ; Han Woo LEE ; Jae Seong KANG
Korean Journal of Obstetrics and Gynecology 1991;34(10):1451-1456
No abstract available.
Krukenberg Tumor*
6.Systolic Time Intervals in Korean Diabetics.
Seong Hoon PARK ; Yun Shik CHOI ; Young Woo LEE
Korean Circulation Journal 1981;11(1):95-102
Recently, the proportion of cardiovascular disease as a cause of death in diabetics is in ever increasing tendency. Present study is designed to evaluate the change of myocardial performance by the effect of microangiopathy of diabetics. The measurements of systolic time intervals were obtained from simultaneous high speed recordings(100mm/sec) of electrocardiography, phonocardiography, and carotid pulse tracing in diabetics(male 26, female 31). 1. As the diabetic retinopathy got severe, shortening of LVET and prologation of PEP were noted, but QS2 showed no significant change. 2. PEP/LVET ratio fo diabetics without diabetic retinopathy was significantly higher than that of normal control(p<0.01). 3. PEP/LVET ratio of diabetics with diastolic blood pressure under 95mmHg was significantly higher than that of normal control group(p<0.01), and PEP/LVET ratio of diabetics with diastolic blood pressure over 96mmHg was significantly higher than that of normal control and that of diabetics with diastolic blood pressure under 95mmHg(p<0.01). 4. PEP/LVET ratio of diabetics with proliperative retinopathy was significantly higher than that of normal control and that of diabetics with mild diabetic retinopathy(p<0.01), but this result was not conclusive because of the small case number.
Blood Pressure
;
Cardiovascular Diseases
;
Cause of Death
;
Diabetic Retinopathy
;
Electrocardiography
;
Female
;
Humans
;
Phonocardiography
;
Systole*
7.Psychosis in Parkinson.
Seong Beom KOH ; Kun Woo PARK ; Dae Hie LEE
Journal of the Korean Society of Biological Psychiatry 1997;4(1):132-135
Current treatment strategies for levodopa-induced psychosis in advanced Parkinson's disease have had limited success. Reduction or discontinuation of levodopa and coadministration with dopamine-blocking neuroleptics may attenuate the psychotic symptoms, but these strategies are associated with worsening of parkinsonian symptoms. Administration of 5-HT3 receptor antagonist ; ondansetron, a newer strategy to attenuate psychosis of Parkinson' disease without motor deterioration was introduced. A 41-year-old young-onset male, who was diagnosed as Parkinson's disease 7 years ago, was treated with levodopa therapy, and had levodopa-induced psychosis(delusion, hallucination, paranoid, insomnia). After trial of ondansetron, he showed improvement in the Brief Psychiatric Rating Scale(from 21 points to 9 points) in spite of increasing the dosage of levodopa. With ondansetron, we could increase the dosage of levodopa without psychotic complications(esp, hallucination), and he showed improvement in the motor fluctuation.
Adult
;
Antipsychotic Agents
;
Hallucinations
;
Humans
;
Levodopa
;
Male
;
Ondansetron
;
Parkinson Disease
;
Psychotic Disorders*
;
Receptors, Serotonin, 5-HT3
8.A study for the change of articular cartilage and synovium of rabbit knee after osmic acid injection.
Eun Woo LEE ; Jae Myeung CHUN ; Byung Woo AHN ; Bong Jin LEE ; Ki Seong KIM
The Journal of the Korean Orthopaedic Association 1992;27(1):341-350
No abstract available.
Cartilage, Articular*
;
Knee*
;
Osmium Tetroxide*
;
Synovial Membrane*
9.Clinical study of thyroid tumor in children.
Sung Eun JUNG ; Seong Yeoll KIM ; Kwi Won PARK ; Seong Cheol LEE ; Woo Ki KIM
Journal of the Korean Surgical Society 1991;40(6):790-793
No abstract available.
Child*
;
Humans
;
Thyroid Gland*
10.A Clinical Study on Antihypertensive Effects of Aldactazide (Spironolactone+Hydrochlorothiazide).
Myoung Mook LEE ; Seong Yun KIM ; Jeong Eui PARK ; Young Woo LEE ; Sung Ho LEE
Korean Circulation Journal 1977;7(2):27-33
The antihypertensive effects fo aldactazide and serum electrolytes changes before and after treatment with aldactazide were observed. The followings were obtained: 1. Results of antihypertensive therapy with aldactazide in 23 hypertensive patients revealed good effects in 52.17%, fair in 26.09%, poor in 8.7%, and failure in 13.04% of cases. In 78.26% of cases, good or fair control of blood pressure was obtained. 2. Daily doses of aldactazide ranged from 25mg to 50mg depending upon the level of blood pressure. The antihypertensive effects were appeared after average 11 days of administration. 3. The side effects during treatment with aldactazide were dizziness, weakness, indigestion, headache, and restlessness in 26.28% of cases (6 of 23 cases). 4. No significant changes in serum Na and K values were observed before and after treatment with aldactazide for average 23 days.
Blood Pressure
;
Dizziness
;
Dyspepsia
;
Electrolytes
;
Headache
;
Humans
;
Psychomotor Agitation