• Title/Summary/Keyword: Immunoglobulin M

Search Result 370, Processing Time 0.026 seconds

Predictive factors of resistance to intravenous immunoglobulin and coronary artery lesions in Kawasaki disease

  • Lee, Hye Young;Song, Min Seob
    • Clinical and Experimental Pediatrics
    • /
    • v.59 no.12
    • /
    • pp.477-482
    • /
    • 2016
  • Purpose: We conducted a study to determine which factors may be useful as predictive markers in identifying Kawasaki disease (KD) patients with a high risk of resistance to intravenous immunoglobulin (IVIG) and developing coronary artery lesions (CAL). Methods: We enrolled 287 patients in acute phase of KD at a single center. The demographic, clinical and laboratory data were collected retrospectively. Results: There were 34 patients in the IVIG resistant group. The IVIG resistant group had significantly higher serum N-terminal-pro-brain natriuretic protein (NT-proBNP) levels (P<0.01) and polymorphonuclear neutrophil (PMN) percentage (P<0.01) in comparison to the IVIG responders. The results yielded sensitivity (78.8%, 60.6%), specificity (58.2%, 90%) and cutoff value (628.6 pg/mL, 80.3%) of NT-proBNP and PMN respectively, in predicting IVIG resistance. Despite IVIG administration, 13 of the 287 patients developed CAL. The patients in the CAL group had higher NT-proBNP levels (P<0.01) and higher PMN percentage (P<0.01). In these patients, the results yielded sensitivity (73.3%, 56.7%), specificity (67.9%, 88.9%) and cutoff value (853.4 pg/mL, 80.3%) of NT-proBNP and PMN respectively, for predicting CAL. The area under the curve (AUC) for predicting resistance to IVIG was NT-proBNP 0.712, PMN 0.802. The AUC for predicting CAL was NT-proBNP 0.739, and PMN 0.773. Conclusion: Serum NT-proBNP levels and PMN percentage were significantly elevated in patients with KD with IVIG resistance and CAL. Thus, they may be useful predicting markers for IVIG resistance and development of CAL in KD patients.

Effects of Ato-tang on DNCB-induced atopic dermatitis in Mice (아토피피부염 동물 병태 모델에서 아토탕의 개선효과)

  • Kim, Gun-Woo;Kim, Dong-Hee
    • The Korea Journal of Herbology
    • /
    • v.31 no.4
    • /
    • pp.79-85
    • /
    • 2016
  • Objectives : The aim of this study is to investigate anti-atopic dermatitis effect using ato-tang.Methods : Ato-tang was external treatment to NC/Nga mice for 4 weeks, where atopic dermatitis was induced by DNCB at 1% and 0.4% for 3 weeks. Atopic dermatitis index score was measured using eye observation and picture evaluation. The histopathological change of dorsal skin was observed by hematoxylin and eosin (H&E) staining. Cytokines including IL-4, IL-5 and IL-13 were measured by Luminex or reverse transcriptase polymerase chain reaction (RT-PCR) analysis and immunoglobulin E (IgE) was measured by ELISA reader.Results : The dorsal skin of Ato-tang group showed decrease in erythema, pruritus, dry skin, edema, excoriation, erosion and lichenification level through naked eye observations. Immunoglobulin cell infiltration and the thickness of epidermis were significantly decreased in the dorsal skin compared to control. Production of Th2 cytokines (IL-4, IL-5, IL-13) and IgE level in serum were all significantly decreased, in comparison with control. In addition, mRNA expression level of Th2 cytokines (IL-4, IL-5, IL-13) in spleen was decreased, in comparison with control.Conclusion : The results indicated that external treatment of ato was improved skin barrier function in the symptoms of atopic dermatitis disease. Also, atopic dermatitis factors where cytokine as well as immunoglobulin E in serum and mRNA expression were decreased, respectively, in comparison with control. Therefore, we suggest that ato could be effectively used as a external therapeutic drug based on atopic dermatitis factors.

Effect of Subclinical Mastitis on Milk of Cross Bred Sahiwal × Jersey Cows: A Biochemical Study

  • Kalorey, D.R.;Kurkure, N.V.;Nigot, N.K.;Patil, M.P.;Pathak, V.P.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.14 no.3
    • /
    • pp.382-383
    • /
    • 2001
  • The experiment was undertaken to study the effect of subclinical mastitis on the biochemical parameters of milk in crossbred (Sahiwal $\times$ Jersey) cows. Subclincial mastitis was judged using California Mastitis Test and graded on a scale of 0 to 2. Twenty six milk samples of each grade were subjected to somatic cell count. Separated milk whey was analysed for total protein, immunoglobulin and trace mineral content. Results indicate linear increases in somatic cell count, total protein and immunoglobulin concentrations in milk with increase in grade of subclinical mastitis. However, copper, zinc, manganese and iron concentration in milk was not affected by grade of mastitis.

Helicobacter pylori 특이 계란항체의 생산 및 특성

  • Kim, Byoun-Jae;Kang, Byung-Hwa;Kim, Tae-Yong;Kim, Tae-Han;Kim, Kee-Won
    • Microbiology and Biotechnology Letters
    • /
    • v.25 no.6
    • /
    • pp.612-616
    • /
    • 1997
  • IgY (egg yolk immunoglobulin) against Helicobacter pylori was produced by immunizing hen with some Helicobacter pylori antigens. H. pylori whole cell, whole cell lysates, partially purified urease and p54 protein, which showed high antigenicity in mice, were used as immunogens. Four hens were immunized with these immunogens three times. IgY was purified from immunized egg yolk with polyethylene glycol (M.W. 8000) and its anti-H. pylori titer was determined by enzyme linked immunosorbent assay (ELISA). The anti-H. pylori titer reached peak at 8 weeks and was maintained over 20 weeks. H. pylori cells were agglutinated with these purified IgY and the specificity of these purified IgY was detected with immunoblotting.

  • PDF

Japanese-B Viral Encephalitis with a Biphasic Illness Pattern and Recovery after Intravenous Immunoglobulin Therapy (이상성 경과를 보이고 정맥면역글로불린 치료 후 호전된 일본뇌염)

  • Lee, Byung-Chan;Jeon, Ji Ye;Moon, Hye-Jin;Lim, Jeong Geun;Cho, Yong Won
    • Annals of Clinical Neurophysiology
    • /
    • v.16 no.1
    • /
    • pp.35-38
    • /
    • 2014
  • Japanese-B viral encephalitis (JE) usually has a monophasic illness pattern. A 45-year-old woman in an altered mentality had improved over 1 month. About 1 week after the initial improvement, the patient became comatose with aggravated EEG and MRI findings. Assays of cerebrospinal fluid and serum were positive for the IgM antibody to Japanese-B virus. After intravenous immunoglobulin (IVIG) infusion, the patient recovered. We report a patient with JE who showed a biphasic illness pattern and recovered after IVIG therapy.

Production of Anti-fetuin Immunoglobulin Y and its Isolation Using an Affinity Column (페튜인에 대한 면역글로부린 Y의 생성 및 친화성 컬럼에 의한 분리)

  • 정병욱;정영윤;김윤중;박지훈;구완모;김병수;김기돈;김하나;김하형
    • YAKHAK HOEJI
    • /
    • v.47 no.6
    • /
    • pp.438-443
    • /
    • 2003
  • For the investigations of the usefulness of immunoglobulin Y (IgY), we attempted to produce and isolate IgY from egg yolk of white Leghorn hens immunized with fetuin as a model antigen. We used three methods to optimize the recovery of IgY: water dilution, polyethylene glycol, and carrageenan. The daily yield of anti-fetuin IgY from egg yolk was also examined, and it was isolated using a fetuin-affinity column at a yield of IgY of 2.7% from total IgY Furthermore, peroxidase-labeled antifetuin IgY was prepared, and was used to determine the minimum sensitivity against fetuin, which was found to occur to a fetuin concentration of 1 ng/$m\ell$.

Expression of IgG1 Germline Transcripts in Germinal Center B Cells of Mouse Popliteal Lymph Nodes

  • Lee, In-Woo;Kim, Jin-Ho;Chung, Gook-Hyun
    • BMB Reports
    • /
    • v.29 no.2
    • /
    • pp.127-132
    • /
    • 1996
  • Germinal centers (GCs) are formed in peripheral lymphoid tissues in response to protein antigens. In order to see if immunoglobulin isotype switching takes place in GC B-cells, we isolated GC B-cells (PNA positive cells) from mouse popliteal lymph nodes by a flow cytometer after the staining of lymph node cells with PNA-FITC and anti-B220-PE, and determined the expression of ${\gamma}1$ germline transcript and ${\gamma}1$ mRNA by RT-PCR. ${\gamma}1$ germline transcript and ${\gamma}1$ mRNA were amplified specifically in cDNAs from hybridoma expressing IgG1 or splenocytes stimulated LPS plus IL-4. Germinal center B-cells formed in popliteal lymph nodes of mice immunized with chicken ovalbumin were isolated 7 days after immunization. We sorted GC B-cells five times. Immunoglobulin ${\gamma}1$ germline transcripts were expressed in germinal center B-cells in three out of five sorts whereas two out of five sorts did not express ${\gamma}1$ germline transcripts in GC B-cells. The contents of GC B-cells ranged from 5 to 7% of total lymph node cells in most flow cytometric analyses but those of two sorted cells which did not express ${\gamma}1$ germline transcripts were out of normal range. These results imply that isotype switching of immunoglobulins may take place in GCs.

  • PDF

Adsorption of Globular Proteins to Vaccine Adjuvants

  • Jang, Mi-Jin;Cho, Il-Young;Callahan, Patricia
    • BMB Reports
    • /
    • v.30 no.5
    • /
    • pp.346-351
    • /
    • 1997
  • The maximum adsorption/desorption conditions and the adsorption mechanism of globular proteins to vaccine adjuvants were determined. The maximum adsorption ratio of protein to the $Al^{3+}$ content of aluminum oxyhydroxide and the optimal adsorption pH are 2:1 (${\mu}g:{\mu}g$) for bovine serum albumin (BSA) at pH 6.0 and 2.5:1 (${\mu}g:{\mu}g$) for immunoglobulin G (IgG) at pH 7.0, respectively. The maximum adsorption ratio onto aluminum phosphate gel was 1.5:1 (${\mu}g$ Protein:${\mu}g$ $Al^{3+}$) at pH 5.0 for both BSA and IgG. Adsorption of the native globular proteins, BSA and IgG, to aluminum oxyhydroxide and aluminum phosphate gel was reversible as a function of pH. Complete desorption of these proteins from aluminum phosphate gel was observed at alkaline pH, whereas only 80~90% removal from aluminum oxyhydroxide was achieved with alkaline pH and 50 mM phosphate buffer. We conclude that electrostatic and hydrogen bonding interactions between the native proteins and adjuvants are important binding mechanisms for adsorption, and that the surface charge of the protein and the colloid components control the maximum adsorption conditions.

  • PDF

Serum Immunoglobulin Levels in Coal Workers' Pneumoconiosis (탄광부진폐증자의 혈청 면역단백 농도에 관한 연구)

  • Chung, Ho-Keun;Cheon, Yong-Hee;Hong, Jeong-Pyo
    • Journal of Preventive Medicine and Public Health
    • /
    • v.20 no.2 s.22
    • /
    • pp.247-254
    • /
    • 1987
  • Serum immunoglobulin(Ig)A, IgG, IgM, levels were measured in 99 coal workers' pneumoconiosis (CWP) patients and 12 healthy coal workers and 9 non-miners to compare with each group by the radiological categories, its complications and working period in coal mine. Serum were measured by nephelometry, The findings were as follows: 1) Serum IgA levels were significantly different between three groups of CWP patient, healthy coal worker and non-miner ($mean{\pm}standard$ deviation: $226.4{\pm}87.7,\;221.3{\pm}45.1,\;170.1{\pm}65.7$ respectively). 2) There were no significant differences of Ig levels among radiological categories of CWP. 3) There were no significant differences of Ig levels among simple pneumoconiosis and its complicated disorders. 4) The three Ig levels were slightly increased in the group of mining years less than 20 years (IgA: r=0.1869, p<0.10 IgG: r=0.2902, p<0.05 IgM: r=0.2889, p<0.05).

  • PDF