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1.
Srimanote P Ittiprasert W Sermsart B Chaisri U Mahannop P Sakolvaree Y Tapchaisri P Maleewong W Kurazono H Hayashi H Chaicumpa W 《Asian Pacific journal of allergy and immunology / launched by the Allergy and Immunology Society of Thailand》2000,18(1):37-45
Hybridomas secreting monoclonal antibodies (MAbs) to Trichinella spiralis were produced. Myeloma cells were fused with splenocytes of a mouse immunized with excretory-secretory (E-S) antigen of infective larvae. A large percentage of growing hybrids secreted antibodies cross-reactive to many of 23 heterologous parasites tested. Only 6 monoclones (designated 3F2, 5D1, 10F6, 11E4, 13D6 and 14D11) secreted MAbs specific to the E-S antigen and/or a crude extract (CE) of T. spiralis infective larvae. The 6 monoclones secreted IgM, IgG3, IgM, IgG3, IgG3 and IgG3, respectively. Clone 5D1 was selected to mass produce MAbs which were then coupled to CNBr-activated Sepharose CL-4B to prepare an affinity-purified antigen. Dot-blot ELISA with either purified antigen or CE was evaluated. There were 17 patients with acute trichinellosis and 76 individuals convalescing from T. spiralis infection (group 1). Controls were 170 patients with parasitic infections other than trichinellosis (group 2) and 35 healthy parasite-free controls (group 3). CE-ELISA was positive in all group 1 patients. However, sera from many group 2 patients also were reactive (opisthorchiasis-44.2%, schistosomiasis-44%, gnathostomiasis-30%, paragonimiasis-28.6%, taeniasis-27.3%, strongyloidiasis-23.1% and hookworm infections-20%). Affinity-purified antigen was 100% specific, all sera from group 2 and group 3 individuals tested negative. Although 74 of 76 patients (97.4%) with convalescing trichinellosis tested positive, sera from only 3 of 17 patients (17.6%) with acute T. spiralis were reactive. Thus, CE antigen is appropriate when sensitivity is needed, while purified antigen should be used when specificity is required. Dot-blot ELISA is easier to perform, more rapid and less expensive than indirect ELISA. Many samples can be assayed simultaneously, special equipment is not required, and results can be preserved for retrospective analysis. Dot-blot ELISA is therefore the method of choice for the rapid diagnosis of trichinellosis, particularly when more complex laboratory tests are unavailable. 相似文献
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Shin Urai Naoko Hashimoto Michinori Takabe Yuya Kashitani Yuka Satake Yuki Nishimoto Motoharu Kawashima Soichiro Henmi Mitsuo Kuroda Yu Yamane Tokito Koga Satoru Kajita Kazuki Doi Tetsuya Oue Hirohisa Murakami Nobuhiko Mukohara Takeshi Ohara 《Journal of artificial organs》2021,24(2):225-233
Journal of Artificial Organs - Perioperative hyperglycemia, hypoglycemia, and high glycemic variability are independent risk factors for mortality in critically ill patients. After cardiac surgery,... 相似文献
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CpG DNA, liposome and refined antigen oral cholera vaccine 总被引:1,自引:0,他引:1
Leelawongtawon R Somroop S Chaisri U Tongtawe P Chongsa-nguan M Kalambaheti T Tapchaisri P Pichyangkul S Sakolvaree Y Kurazono H Hayashi H Chaicumpa W 《Asian Pacific journal of allergy and immunology / launched by the Allergy and Immunology Society of Thailand》2003,21(4):231-239
An oral cholera vaccine made up of three Vibrio cholerae antigens, i.e. lipopolysaccharide (LPS), recombinant toxin co-regulated pili (rTcpA) and heat-treated cholera toxin (H-CT) has been developed in six different formulations. Eight-week-old Wistar rats were divided into nine groups and immunized as follows: the first group received the oral vaccine 1 consisting of the three antigens (LPS, rTcpA and H-CT) associated with a liposome (L) and bacterial CpG-DNA (ODN#1826). The rats of groups 2 and 3 received oral vaccines 2 and 3 consisting of the liposome-associated three antigens with and without non-bacterial CpG-DNA (ODN#1982), respectively. Rats of groups 4 received oral vaccine 4 consisting of the three antigens mixed with the ODN#1826, similar to vaccine 1, but without liposome. Rats of groups 5 and 6 received oral vaccines 5 and 6 consisting of the three antigens with and without ODN#1982, respectively, similar to vaccines 2 and 3, but without liposome. Rats of groups 7, 8 and 9 received oral placebos, namely liposomes (L), ODN#1826 (CpG), and vaccine diluent, i.e. 5% NaHCO3 solution, respectively. All vaccines were given in three doses at 14-day intervals. It was found that the combination of liposome and ODN#1826 in vaccine 1 evoked the highest immune response to V. cholerae antigen compared to other vaccine formulations and placebos, as measured by the appearance of antigen-specific antibody-producing cells in the intestinal lamina propria. The immunogenicity according to the magnitude of the immune response was: V1>V2=V3>V4>V5=V6>V7=V8=V9. The results of this study indicate that CpG-DNA and liposome are effective mucosal adjuvants for an oral cholera vaccine prepared from refined V. cholerae antigens and their combination seems to be synergistic. The potential role of liposome as a vaccine delivery vehicle has been confirmed. 相似文献
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Suwit Chaisri James A. Traherne Jyothi Jayaraman Amornrat Romphruk John Trowsdale Chanvit Leelayuwat 《Immunology》2018,153(3):380-386
KIR (Killer Immunoglobulin‐like Receptor) variants influence immune responses and are genetic factors in disease susceptibility. Using sequence‐specific priming PCR, we have previously described the diversity of KIR genes in term of presence/absence in northeastern Thais (NETs). To provide additional resolution beyond conventional methods, quantitative PCR was applied to determine KIR copy number profiles. Novel expanded and contracted KIR copy number profiles were identified at cumulatively high frequencies. These all comprise haplotypes with duplication (6·9%) or deletion (2·7%) of KIR3DL1/S1 along with adjacent genes. Five expanded KIR profiles comprised haplotypes with duplications of KIR2DP1, 2DL1, 3DP1, 2DL4, 3DL1/S1 and 2DS1/4, whereas two contracted profiles contained only a single copy of KIR3DP1, 3DL1/S1 and 2DL4. Using a KIR haplotype prediction program (KIR Haplotype Identifier), 14% of NET haplotypes carried atypical haplotypes based on the gene copy number data. 相似文献
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Deguchi K Ikeda K Sasaki I Shimamura M Urai Y Tsukaguchi M Touge T Takeuchi H Kuriyama S 《Journal of neurology》2007,254(6):735-740
OBJECTIVE : It has been demonstrated that the increased blood pressure (BP) caused by a single dose of water alleviates orthostatic hypotension (OH) and postprandial hypotension (PPH) in patients with autonomic failure (AF). The aim of this study was to evaluate the practical effect of daily water drinking on OH and PPH in the morning when patients with AF are usually most affected. METHODS : In five patients with multiple system atrophy (MSA) characterized by intractable OH and PPH, we measured seated, standing and postprandial BP in the morning without and with ingestion of 350 ml tap water at 07.30 hours for seven successive days. The changes from the basal BP level at 07.30 hours (DeltaBP) were assessed as an index of the effect of water drinking. RESULTS : Water drinking elicited a rapid pressor response in all patients. The DeltaBP during sitting, standing and after a meal following water drinking (day 1 and day 7) was significantly higher than without water drinking (day 0). The effects of reducing OH and PPH on day 7 were equivalent to those on day 1. No adverse effects associated with daily water drinking were observed, except later diuresis, which occurred in one patient. CONCLUSIONS : Daily water drinking demonstrated constant pressor effects in the morning with no severe adverse effects in MSA patients. This finding suggests that water drinking should be tried as a practical measure to prevent or reduce OH and PPH. 相似文献
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The diversity of 17 KIR and HLA ligands (HLA-C1, C2, Bw4, A11) were investigated in two hundred and thirty-five unrelated healthy donors in Northeastern Thais (NETs) by the polymerase chain reaction with sequence-specific primer (PCR-SSP) method. The Hardy-Weinberg Equilibrium (HWE) was used to verify genotyping method for dimorphic KIR and HLA. They were in HWE (p > 0.05). KIR and HLA ligands frequencies, genotypes, haplotypes and linkage disequilibrium (LD) were presented. The genetic data are available in allele Frequencies Net Database. 相似文献