1.Quantitation of Hepatitis B Virus DNA in Sera of HBsAg-Positive Patients Using a Branched DNA Signal Amplification Assay.
Chang Seok KI ; Yoon Sun YANG ; Jong Won KIM
Korean Journal of Clinical Pathology 1997;17(5):870-877
BACKGROUND: Several studies have demonstrated that quantitation of hepatitis B virus (HBV) DNA in sera of HBsAg-positive patients is more useful test for the assessment of infectivity and for the evaluation of disease status than previously utilized numerous serological markers and qualitative polymerase chain reaction for the detection of HBV DNA. We tried to measure serum HBV DNA using a branched DNA (bDNA) signal amplification assay, which is recently introduced and known to be a simple and nonradioisotopic method. METHODS: Total forty patients with HBsAg were randomly selected and serum HBV DNA was measured with duplication using bDNA signal amplification assay (QUANTIPLEXTM HBV DNA ASSAY, Chiron, USA). Quantitation was determined from a standard curve and expressed as HBV DNA equivalents/mL (Eq/mL; 1 Eq = 1 molecule of the primary HBV DNA standard). Serum HBeAg, aspartate aminotransferase (AST), alanine aminotransferase (ALT) , and soluble interleukin-2 receptor (sIL-2R) were compared with HBV DNA. RESULTS: Serum HBV DNA was quantitated in 13 patients (32.5%) (range 6.4x106-7.4x109 Eq/mL, mean 1.8x109 Eq/mL, CV 8.1%). All eleven patients (100%) with both HBsAg and HBeAg an4 2 of 29 patients (6.9%) with HBsAg but not with HBeAg showed measurable HBV DNA (p < 0.001). In addition, serum levels of AST, ALT, and sIL-2R were significantly higher in HBV DNA measured patients compared with those of unmeasured patients. CONCLUSIONS: Above results show that more than half the HBsAg-positive patients do not have enough HBV DNA which is measurable with boNA signal amplification assay but all of HBeAg-positive patients and some of HBeAg-negative patients do. In addition, HBV DNA quantitation might be correlated with the disease activity in HBsAg-positive patients because serum levels of AST, ALT, and sIL-2R are higher in patients measured with HBV DNA than unmeasured.
Alanine Transaminase
;
Aspartate Aminotransferases
;
Branched DNA Signal Amplification Assay*
;
DNA
;
Hepatitis B e Antigens
;
Hepatitis B Surface Antigens
;
Hepatitis B virus*
;
Hepatitis B*
;
Hepatitis*
;
Humans
;
Interleukin-2
;
Polymerase Chain Reaction
2.Pityriasis Rotunda with Familial Occurrence.
Jong Kyu YANG ; Dong Won LEE ; Baik Kee CHO
Annals of Dermatology 1997;9(3):194-196
Pityriasis rotunda is an uncommon chronic dermatosis characterized by multiple, round or oval, hyperpigmented or hypopigmented patches that have a fine scale on the trunk and extremities. Most of the cases reported predominantly occurred in Oriental and black patients in association with internal disease. However, in Caucasians it has been documented in healthy persons usually as a familial tendency. We report a case of pityriasis rotunda which showed familial occurrence and had no underlying disease.
Extremities
;
Humans
;
Pityriasis*
;
Skin Diseases
3.Study on the Clitoral Size of the Korean Female Newborn.
Jong Lin RHI ; Sei Won YANG ; Hyung Ro MOON
Journal of the Korean Pediatric Society 1988;31(8):1007-1013
No abstract available.
Female*
;
Humans
;
Infant, Newborn*
4.Comparative study of serum soluble interleukin-2 receptor and hepatitis C virus RNA in patients with chronic hepatitis C virus infection.
Yoon Sun YANG ; Chang Seok KI ; Jong Won KIM
Korean Journal of Clinical Pathology 1997;17(5):781-790
BACKGROUND: T cell mediated immune destruction is an important mechanism of liver injury in patients with chronic hepatitis C. Serum levels of soluble interleukin-2 receptor(sIL-2R) seem to serve as a marker for the T cell activation and progressive liver injury, This study examined serum levels of sIft-2R and hepatitis C virus (HCV) RNA in patients with chronic HCV infection to determine the correlation with the severity of chronic hepatocellular damage. METHODS: Serum levels of sIft-2R in 73 patients with HCV infection (chronic hepatitis 52, liver cirrhosis 9, hepatocellular carcinoma 12) and 40 healthy controls were measured by sandwich enzyme immunoassay (CELLFREE, T Cell Sciences, USA). HCV RNA was quantified by QUANTIPLEX(TM) HCV RNA 2.0 assay (Chiron, USA) with duplication. This assay is a sandwich nucleic acid hybridization procedure using branched DNA amplification for the quantitation of HCV RNA. RESULTS: The sIL-2R levels of 52 patients with chronic hepatitis (591.4+/-238.7U/mL), 9 with liver cirrhosis(949.4+/-721.9 U/mL), and 12 with hepatocellular carcinoma (1,167.4+/- 554.4 U/mL) were significantly higher than those of healthy controls(370.8+/-71.8 U/mL) (p<0.001). A progressive and significant increase occurred in sIL-2R levels with chronic hepatitis C, liver cirrhosis and hepatocellular carcinoma (HCC) in order (p(0.001). The HCV RNA was detected in all patients and the means of HCV viral load were 3.3 MEq/mL in chronic hepatitis, 2.8 MEq/mL in cirrhosis, and 3.7 MEq/mL in HCC. There was no significant correlation between HCV RNA and the severity of liver injury in chronic HCV infection. There were no correlations among sIL-2R, HCV RNA and serum ALT. CONCLUSIONS: These results suggest that chronic hepatocellular injury by HCV progress mainly by T cell mediated immune response, not by direct cytopathic injury. Also, sIL-2R can be useful as a marker in monitoring the patients with HCV infection at high risk of getting HCC.
Carcinoma, Hepatocellular
;
DNA
;
Fibrosis
;
Hepacivirus*
;
Hepatitis C*
;
Hepatitis C, Chronic*
;
Hepatitis*
;
Hepatitis, Chronic*
;
Humans
;
Immunoenzyme Techniques
;
Interleukin-2*
;
Liver
;
Liver Cirrhosis
;
Nucleic Acid Hybridization
;
RNA
;
Viral Load
5.Comparative study of serum soluble interleukin-2 receptor and hepatitis C virus RNA in patients with chronic hepatitis C virus infection.
Yoon Sun YANG ; Chang Seok KI ; Jong Won KIM
Korean Journal of Clinical Pathology 1997;17(5):781-790
BACKGROUND: T cell mediated immune destruction is an important mechanism of liver injury in patients with chronic hepatitis C. Serum levels of soluble interleukin-2 receptor(sIL-2R) seem to serve as a marker for the T cell activation and progressive liver injury, This study examined serum levels of sIft-2R and hepatitis C virus (HCV) RNA in patients with chronic HCV infection to determine the correlation with the severity of chronic hepatocellular damage. METHODS: Serum levels of sIft-2R in 73 patients with HCV infection (chronic hepatitis 52, liver cirrhosis 9, hepatocellular carcinoma 12) and 40 healthy controls were measured by sandwich enzyme immunoassay (CELLFREE, T Cell Sciences, USA). HCV RNA was quantified by QUANTIPLEX(TM) HCV RNA 2.0 assay (Chiron, USA) with duplication. This assay is a sandwich nucleic acid hybridization procedure using branched DNA amplification for the quantitation of HCV RNA. RESULTS: The sIL-2R levels of 52 patients with chronic hepatitis (591.4+/-238.7U/mL), 9 with liver cirrhosis(949.4+/-721.9 U/mL), and 12 with hepatocellular carcinoma (1,167.4+/- 554.4 U/mL) were significantly higher than those of healthy controls(370.8+/-71.8 U/mL) (p<0.001). A progressive and significant increase occurred in sIL-2R levels with chronic hepatitis C, liver cirrhosis and hepatocellular carcinoma (HCC) in order (p(0.001). The HCV RNA was detected in all patients and the means of HCV viral load were 3.3 MEq/mL in chronic hepatitis, 2.8 MEq/mL in cirrhosis, and 3.7 MEq/mL in HCC. There was no significant correlation between HCV RNA and the severity of liver injury in chronic HCV infection. There were no correlations among sIL-2R, HCV RNA and serum ALT. CONCLUSIONS: These results suggest that chronic hepatocellular injury by HCV progress mainly by T cell mediated immune response, not by direct cytopathic injury. Also, sIL-2R can be useful as a marker in monitoring the patients with HCV infection at high risk of getting HCC.
Carcinoma, Hepatocellular
;
DNA
;
Fibrosis
;
Hepacivirus*
;
Hepatitis C*
;
Hepatitis C, Chronic*
;
Hepatitis*
;
Hepatitis, Chronic*
;
Humans
;
Immunoenzyme Techniques
;
Interleukin-2*
;
Liver
;
Liver Cirrhosis
;
Nucleic Acid Hybridization
;
RNA
;
Viral Load
6.A case report of orthodontic treatment for adult patient with upper prognathism.
Won Sik YANG ; Jong Tae KIM ; Yung Bok KIM
Korean Journal of Orthodontics 1977;7(1):23-29
A 23 year-old female with skeleto-dentoalveolar protrusion of maxilla, minor broken contact points between anterior teeth, and missing of lower 1st molars, has been treated with multibanded edgewise technique. After treatment of 14 months, she has gained functional overbite-overjet relationship and facial harmony due to the retraction of upper anterior teeth. Root resorption was slight. Especially, us ing the space of missed lower 1st molars instead of extracting lower premolars, expected and favorable results were obtained.
Adult*
;
Bicuspid
;
Female
;
Humans
;
Maxilla
;
Molar
;
Prognathism*
;
Root Resorption
;
Tooth
;
Young Adult
7.Prenatal ultrasonographic diagnosis of the congenital abdominal wall defect of the fetus: a case report.
Soon Ae LEE ; Hwa Suk YANG ; Jong Hak LEE ; Jong Hwa KIM ; Won Yung PAIK
Korean Journal of Obstetrics and Gynecology 1991;34(7):1015-1020
No abstract available.
Abdominal Wall*
;
Diagnosis*
;
Fetus*
8.The result of transseptal transsphenoidal approach to pituitarygland lesion: external rhinoplasty approach.
Yang Gi MIN ; Ha Won JUNG ; Seung Ha OH ; Jong Woo CHUNG ; Won Seok YU ; Hong Jong KIM
Korean Journal of Otolaryngology - Head and Neck Surgery 1992;35(2):309-315
No abstract available.
Rhinoplasty*
9.A clinical and electrophysiological studies of vincristine neurotoxicity.
Joong Won KIM ; Jong Ho WON ; Dae Sik HONG ; Hee Sook PARK ; Yang Gyun LEE
Journal of the Korean Cancer Association 1991;23(2):252-258
No abstract available.
Vincristine*
10.Comparison between Group I in Which Non-Supine Apnea-Hypopnea Index> or =5 and Group II in Which Non-Supine Apnea-Hypopnea Index<5 in Patients with Positional Sleep Apnea.
Won Il PARK ; Hye Won JUNG ; Joon Bum JOO ; Ju Eun CHO ; Jong Yang KIM
Sleep Medicine and Psychophysiology 2013;20(1):31-34
OBJECTIVES: The aim of this study was to evaluate the differences in patients with positional dependent sleep apnea according to their non-supine apnea-hypopnea index (AHI, > or =5 vs. <5). METHODS: 92 patients with positional sleep apnea were evaluated. The patients were divided into two groups : group I was non-supine AHI having > or =5 ; group II was non-supine AHI having less than 5. Statistical analysis was performed to find the difference between two groups. RESULTS: In 92 patients, the number of group I patients was 11 (12%) and the number of group II patients was 81 (88%). In the severe AHI group, percentage of group I was dominated (70%) and showing a significant difference compared with the mild and moderate AHI groups (p<.05). In the severe body mass index (BMI) group, percentage of group I was dominated (54.5%) and showing a significant difference compared with of the mild and moderate BMI groups (p<.05). The percentage of group I was significantly higher than group II (p<.05) in the AHI, supine AHI, non-supine AHI and snore time. CONCLUSIONS: In patients with positional sleep apnea, severe OSA and high BMI are more common in patients with non-supine AHI> or =5 than non-supine AHI<5.
Body Mass Index
;
Humans
;
Sleep Apnea Syndromes
;
Sleep Apnea, Obstructive