Purpose : This study was conducted to assess the current(2003-2005) prevalence of anti-HBs and immunologic memory for Hepatitis B vaccine in children from the central area of Korea. Methods : Subjects were chosen from children and adolescents who received tests for hepatitis B surface antigen(HBsAg) and anti-HBs at Dankook University Hospital from March 2003 to May 2005. Among these, antibodies to hepatitis B core antigen(IgG anti-HBc) were checked. A single booster vaccination was performed on children whose anti-HBs titers were under 10 mIU/mL. One month after booster vaccination we rechecked the anti-HBs titer. Results : A total of 3,277 subjects were tested for HBsAg/anti-HBs, and 1,913(58.4 percent) of them were positive for anti-HBs. Of these, 29 subjects(0.9 percent) were positive for HBsAg. Positive results for anti-HBs by age were 78.6 percent for 6-12 months of age, 62.7 percent for 1-3 years of age, 51.9 percent for 4-6 years of age, 49.5 percent for 7-12 years of age, 63.4 percent for 13-15 years of age and 72.2 percent for 16-18 years of age. The 80 subjects who were tested negative for HBsAg/anti-HBs received a single booster vaccine, 71 subjects were tested positive for antibodies. IgG anti-HBc titer was checked for 169 of the subjects, 5 subjects were positive. Conclusion : In our study, a significant anamnestic response was observed in 88.8 percent of children. This is believed to be a result of the relatively long immunologic memory effect of the hepatitis B vaccination in children from the central area of Korea.
Ha, Dong-Hyuk;Min, Kyung-Sun;Noh, Gyeong-Woon;Kim, Hyun-Ju
The Korean Journal of Nuclear Medicine Technology
/
v.15
no.1
/
pp.121-125
/
2011
Purpose: The DNA-type virus HBV, discovered by D. Dane and others in 1976, is approximately 42nm big and known as the main cause of liver-related diseases around the world. HBsAg has 4 kinds of subtypes including adw, adr, ayw and ayr and besides common antigen factor a, there are d, y, r, w. From the methods of serologically testing HBV, IRMA, EIA and CLIa were developed for testing HBsAg and are being used in examining the surface antigen of HBV. In this study, among the methods for testing HBV, the recently developed RIAKEY Ultrasensitive HBsAg IRMA kit's sensitivity level and performance in detection of mutant forms were measured and compared with CLIA. Materials and methods: Two certified reference materials, which are WHO 1st International Standard 1985(80/549) and WHO 2nd International Standard 2003(00/588. subtype adw2, genotypeA), were used in the examination and the sensitivity level was measured by diluting these materials from 0.08 IU/ml to 0.005 IU/ml. The materials for examining the detection of mutant forms included 9 kinds of subtype 'ad' and one kind of subtype 'ay' purchased from DSI company. Also, with the use of positive and negative samples, they was compared with CLIA. Result: Ultrasensitive HBsAg kit based on IRMA method showed the detection of up to 0.01 IU/ml not only for WHO 1st International Standard 1985(80/549) but also for WHO 2nd International Standard 2003(00/588. subtype adw2, genotypeA) and the sensitivity level was measured as 0.01 IU/ml by WHO standard. In testing the performance for detection of mutant forms, the 9 kinds of subtype 'ad' and one kind of subtype 'ay' mutant materials were detected, demonstrating the capacity of detecting various types of mutant forms. Conclusions: With the clinical importance of sensitivity level and performance in detection of mutant forms increasing in the field of HBsAg diagnosis, the examination of IRMA's effectiveness using RIA method in the aspects of the sensitivity level and performance in detection of mutant forms was carried out and its result is as follows. The sensitivity level was measured as 0.01 IU/ml by WHO standard and it was possible to measure various types of mutant forms with high sensitivity. Thus it is suggested that more speedy and accurate reports could be produced from a nuclear medicine laboratory for clinical practitioners requiring results of various situations.
Kim, Do-Soon;Park, Jueng-Eun;Seo, Kwon-Il;Ko, Sung-Ryong;Lee, Jong-Won;Do, Jae-Ho;Yee, Sung-Tae
Journal of Ginseng Research
/
v.30
no.3
/
pp.117-127
/
2006
Ginseng is a medicinal herb widely used in Asian countries. Dendritic cells(DCs) play a pivotal role in the initiation of T cell-mediated immune responses, making them an attractive cellular adjuvant for use in cancer vaccines. In this study, we examined the effects of Red-ginseng(water extract, edible and fermented ethyl alcohol extract, crude saponin) on the DCs phenotypic and functional maturation. Immature DCs were cultured in the presence of GM-CSF and IL-4, and the generated immature DCs were stimulated by water extract, edible and fermented ethyl alcohol extract, crude saponin and LPS, respectively, for 24hours. The expression of surface co-stimulatory molecules, including MHC(major histocompatibility complex) class II, CD40, CD80 and CD86, was increased on DCs that were stimulated with crude saponin, but antigen-uptake capacity was decreased. The antigen-presenting capacity of Red-ginseng extracts-treated DCs as analyzed by allogeneic T cells proliferation and IL-2, $IFN-{\gamma}$ production was increased. Furthermore, $CD4^+$ and $CD8^+$ syngeneic T cell(OVA-specific) proliferation and $IFN-{\gamma}$ production was significantly increased. However, $CD4^+$ syngeneic T cell secreted higher levels of IL-2 in responding but not $CD8^+$ syngeneic T cell. These results indicate the immunomodulatory properties of Red-ginseng extracts, which might be therapeutically useful in the control of cancers and immunodeficient diseases through the up-regulation of DCs maturation.
The purpose of this animal study was to evaluate, by histological analysis, bone regeneration in rabbit maxillary sinuses with an anorganic bovine graft (Bio-Oss) and a ${\beta}-tricalcium$ phosphate (${\beta}-TCP$) grafting. Bilateral sinus augmentation procedures were performed in 12 adult male rabbits. Rectangular replaceable bony windows were made with a piezoelectric thin saw insert. In the Bio-Oss group, Bio-Oss was grafted and in the ${\beta}-TCP$ group, ${\beta}-TCP$ was grafted and covered by replaceable bony windows. The animals were sacrificed at 2, 4, and 8 weeks after the surgical procedure. The augmented sinuses were evaluated by histomorphometric analysis using hematoxylin-eosin, Masson trichrome, and tartrate-resistant acid phosphatase stains and also by immunohistochemical analysis of proliferating cell nuclear antigen (PCNA), type I collagen, and osteocalcin content. Histologically, new bone formation was found on the surface of Bio-Oss and ${\beta}-TCP$ particles from 2 weeks and continued to 8 weeks. Significant higher new bone formation was revealed in the ${\beta}-TCP$ group than in the Bio-Oss group at 8 weeks. The amount of graft materials was significantly decreased in the ${\beta}-TCP$ group and the number of osteoclasts was significantly increased in the ${\beta}-TCP$ group from 4 to 8 weeks. Immunoreactivity to PCNA was reduced at 8 weeks. The expression of type I collagen was significantly increased in the ${\beta}-TCP$ group at 2 weeks, but was significantly increased in the Bio-Oss group at 8 weeks. Immunoreactivity to osteocalcin was increased from 2 to 8 weeks. These histological results can help in the selection of graft materials for implants. Both Bio-Oss and ${\beta}-TCP$ are proven graft materials, however, these results indicate that ${\beta}-TCP$ showed better bone regeneration results in rabbit maxillary sinus augmentation.
Cell surface antigenic relationships between pathogenic mycobacteria have been investigated by the enzyme-linked immunosorbent assay using phenolkilled cells and their rabbits antisera. Homologous and heterologous reactions of Mycobacterium avium-intracellulare antisera before and after homologous and heterologous absorption revealed a close antigenic relationship between strains of the same species and between species if they were members of M. avium(MA)-intracellulare(MI)-scrofulaceum(MG) complex. MAI sera showed a considerable reaction with M. kansasii(MK) and tuberculosis(MTB), but not with the other species. MA(K40004) antiserum reacted with other mycobacteria except few strains of MI and 50~89% of homologous reaction was reduced by heterologous absorption with cells of MI or MS. Intraspecific reaction of MI antisera was natural1y stronger than interspecific reaction and different in extent due to a magnitude of antigenic sharing. Antigenic relationships between N-260D, N-260R, N-260T, and K41014 was somewhat closer than that with N-242D, N-257T, N-28ID, and N-275T. M. nonchromogenicum(MNC) antisera showed a strong interspecific reaction with exception of M. chelonei(MC) and triviale(MTV) to which they reacted weakly or none. Antigenic sharing with M. terrae(MTR) and MG(K30003) was next to intraspecific sharing. NC-3 shared antigens considerably with MA, MC, and M. fortuitum(MF) while NC-11 did not. MTR antisera showed a strong cross-reaction with MI but their homologous reaction was not reduced by MI absorption indicating a paucity of shared antigen of MTR surface. Intraspecific antigenic sharing of course was large with on exception between T-8 and T-13. A considerable amount of antigenic sharing was also found with MNC, MC and MF. Unlike T-8 serum, T-13 antiserum strongly cross-reacted with MA, MG, MK, and MTB. In general, antigenic relationships of mycobacteria, that have been elucidated in this study, well conformed to taxons delineated by the various biological and biochemical means.
Objective: The aim of this study was to investigate the reversibility and safety of KISS1 metastasis suppressor (KISS1) gene vaccine in immunocastration. Methods: Six eight-week old ram lambs were randomly divided into vaccinated and control groups. The vaccine (1 mg/ram lamb) was injected at weeks 0, 3, and 6 of the study. Blood samples were collected from the jugular vein before primary immunization and at weeks 2, 4, 6, 10, 14, 22, and 30 after primary immunization. All ram lambs were slaughtered at 38 weeks of age, and samples were collected. Results: The specific anti-KISS1 antibody titers in vaccinated animals were significantly higher and the serum testosterone level was significantly lower than those in the control groups from week 4 to 14 after primary immunization (p<0.05). No significant difference was observed at weeks 22 and 30 after the primary immunization. Similar results were also found for scrotal circumference, testicular weight, length, breadth, and spermatogenesis in seminiferous tubules in week 30 after primary immunization. KS (KISS1-hepatitis B surface antigen S) fusion fragment of KISS1 gene vaccine was not detected in host cell genomic DNA of 9 tissues of the vaccinated ram lambs by polymerase chain reaction. Conclusion: The effects of KISS1 gene vaccine in immunocastration were reversible and no integration events were recorded.
The purpose of this study was to survey the anti-HBs positivity and titers of antibody in current students who received nationwide vaccination against Hepatitis B virus which targeted infants in 1995. The subjects were 262 students in Gyeongnam province from April 2014 to October 2014. The positive rate of anti-HBs was 55.3% (145 people) and the negative rate of anti-HBs was 44.7% (117 people). Positivity was shown to be higher in women than men. However, there was no statistically significant difference. Of the HBV-vaccinated subjects, 117 (44.7%) had anti-HBs titer <10, which is judged to be negative, 126 (47.8%) had anti-HBs titer 10-499.9 mIU/mL, which is judged to be positive, and 22 (7.3%) had anti-HBs titer more than 500 mIU/mL. The rate of anti-HBs with lower titer (10-99.9 mIU/mL) was 62% in the positive group. Classifying the antibody titer according to age, the rate of anti-HBs positivity in titer with less than 100 mIU/mL was indicated to be 78.3% in cases of 19-20 year old and 46.7% in 21-22 year old, 52.3% in 23-24 year old. A case of the lower titer with 10-99.9 mIU/mL, showed significant difference according to age. As a result of research, the antibody titers is decreased depending on the passage of time. Hence, the checking of anti-HBs titer is needed after Hepatitis B vaccination and many healthy adults will need periodic boosters of hepatitis B vaccine to maintain production of antibody to hepatitis B surface antigen.
The Fas antigen (Fas) as a cell-surface receptor protein which mediates apoptosis-inducing signals plays an important role in the immune system. Expression of Fas mRNA is detected not only in lymphoid organs but also in the nonlymphoid organs. In the ovary, most of the follicles is known to undergo atreisa through apoptosis. However, the exact mechanism of atresia was not elucidated yet. Therefore, the purposes of the present study were to investigate the expression of Fas and Fas ligand in mouse ovary and to clarify the relationship between expression of Fas and Fas ligand and atresia of follicle. The result of RT-PCR demonstrated that Fas and Fas ligand mRNA was expressed in ovary, especially granulosa cells and oocytes. The immunohistochemistry showed that the granulosa cells and oocytes in growing follicles were stained for Fas and Fas ligand, but primordial follicles were not. Furthermore, Fas and Fas ligand were intensively stained in the atretic follicles As results of TUNEL staining to detect apoptotic cells in the ovaries, the number of TUNEL-positive (apoptotic) granulosa cells and oocytes increased in the atretic follicles compared to the healthy normal follicles. These results demonstrate that there is the positive relationship between expression of Fas and Fas ligand in granulosa cells and oocyies and apoptosis of them leading to atresia of follicles. It suggests that expression of Fas and Fas ligand could be associated with atresia of follicles in mouse ovary.
Kim, Jong-Suk;Woo, Jong-Inn;Suh, Yoo-Hun;Kim, Ju-Han;Rhi, Bou-Yong
Korean Journal of Biological Psychiatry
/
v.3
no.2
/
pp.170-180
/
1996
Lowered immune function in the senile dementia patients may be related to the abnormal metabolism of amyloid precursor protein(APP). To investigate the passibility of an abnormal metabolism of APP in lymphocytes and the possible role of APP in the activation of lymphocytes in senile dementia patients, immunohistochemical study of rat spleen and fluorescence activated cell sorter analysis(FACS) of human lymphocytes with the specific antigen far each lymphocyte and double fluorescent marker with antibody to APP were performed. After stimulating lymphocyte with phytohemagglutinin(PHA), APP mRNA and protein were extracted and quantitfied and the influence of ${\beta}$-amyloid protein($A{\beta}$) specific antibody on lymphocyte division was investigated. In spleen, the majority of cells showing $A{\beta}$ immunoreactivity was found in the T-sell dependent zone. FACS indicated that around 90% $CD_4(+)$ T-cells and 60% of $CD_8(+)$ T-sell were immunoreactive to $A{\beta}$ specific antibody(mAb 4G8). Northern blot analysis shows that lymphocyte APP mRNA was gradually increased to reach a maximum at 3 days after activation with lectin mitogen PHA. However, the $A{\beta}$ immunoreactivity an cell surface remained constant during stimulation with PHA, indicating that the release of APP(secreted farm of APP) might be increased. A very large increase in soluble APP secretion was observed in T-lymphocyte upon activation, but only law levels in the resting stale. Immunoblot was carried out an the protein obtained from cell lysate after stimulating lymphocyte by applying PHA to the cultured lymphocyte, and the result was that $A{\beta}$ band of immature farm under 116 KDa marker decreased as the duration of culture was increased after PHA stimulation. The monoclonal $A{\beta}$ specific(4G8) and polyclonal APP antibodies did not inhibit the [$^3H$]-thymidine uptake of mitogen-treated lymphocytes significantly, suggesting that mitogenesis can not be inhibited by specific $A{\beta}$ and polyclonal APP antibody. These results suggest that APP is expressed in T-cell and might be closely associated with the function of T-cells.
To estimate the prevalence of hepatitis B virus (HBV) and hepatitis C virus (HCV) infection and to determine associated risk factors, a population-based seroepidemiologic study was carried out. In 1993, a health examination survey of the population was carried out in rural area known to have a high incidence of liver cancer. The study population were those who volunteered to participate in a health survey over 10 years of age. Examinees were interviewed by specially trained staffs. Sera from 1,033 study subjects were tested for hepatitis B surface antigen (HBsAg) by .everse passive hemagglutinin (RPHA) estimation and for hepatitis C virus antibody (anti-HCV) by 2nd generation passive hemagglutinin (PHA) estimation. The age and sex standardized prevalence of HBsAg was 6.3% which was similar to national average, but that of anti-HCV was 5.1% which was 4 to 5 times higher than that of blood donors or other health examinees in Korea. In a multivariate analysis, transfusion history, surgical operative history, and acupuncture history were not associated with HBsAg positivity. In contrast, acupuncture history (adjusted odds ratio[OR]=2.2 : 95% Confidence interval[CI] 1.0-4.7) and surgical operative history(adjusted OR=2.0 : 95% CI 1.0-4.1) were associated with anti-HCV positivity. The present study suggest that there is an highly endemic area of HCV infection in Korea and probably this endemicity is associated with a parenteral source of HCV infection other than blood transfusion.
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