Search results for: Bovine IgG ELISA Kit
#27759758 2016/10/19 Save this To Up
Enzootic instability for bovine anaplasmosis on family farms located in southwestern Paraná, Brazil.The objective of this study was to assess the occurence of animals seropositive for Anaplasma marginale in the municipality of Realeza, Paraná State, Brazil. Blood samples were collected from 344 cows on 18 small farms in the municipality of Realeza-PR. The animals'serum samples were forwarded to the Federal University of Fronteira do Sul, in order to investigate the occurrence of anti-A. marginale IgG antibodies by an enzyme-linked immunosorbent assay commercial kit. IgG antibodies to A. marginale were detected in cattle from 77.7% of the farms. To the best author's knowledge, this is the first report of occurrence of A. marginale in cattle in southwestern Paraná. The serological assay showed that 24.4% of the animals were seropositive, thus characterizing the location investigated as an area of enzootic instability for the disease. The family farms located in the municipality of Realeza-PR showed enzootic instability for bovine anaplasmosis. It is necessary to conduct disease monitoring programs in association with preventive measures in order to ensure the sanitary quality of the herds and to reduce economic losses for the farmers. In addition, it is essential to implement educational extension actions that allow farmers to acquire knowledge, attitudes and perceptions regarding the risk factors that contribute towards herd A. marginale-infection.
2813 related Products with: Enzootic instability for bovine anaplasmosis on family farms located in southwestern Paraná, Brazil.MOUSE ANTI BOVINE ROTAVIR Caspase-Family Inhibitor Caspase-Family Inhibitor Caspase Family Inhibitor Caspase Family Inhibitor Caspase-Family Inhibitor Caspase-Family Inhibitor Caspase Family Inhibitor Caspase Family Inhibitor Insulin from Bovine Pancr RAP2C, member of RAS onco ABT-263 Mechanisms: Bcl-2
#27661084 2016/09/23 Save this To Up
Simultaneous Quantification of Anticardiolipin IgG and IgM by Time Resolved Fluoroimmunoassay.The autoimmune disease antiphospholipid syndrome (APS) is characterized by the presence of anticardiolipin antibodies (aCL), along with anti-β2-glycoprotein I (β2GPI) antibodies and lupus anticoagulant (LA). In this study, we developed a time-resolved fluoroimmunoassay (TRFIA) system for simultaneous quantification of aCL IgG and IgM. A 96-well microtiter plate precoated with the complex of cardiolipin from bovine heart and bovine β2GPI was incubated with the anticardiolipin IgG and IgM standard substance or serum, and the conjugate of Eu3+-labeled anti-human IgG and Sm3+-labeled anti-human IgM was pipetted to the wells to form a tipical double-antibody-sandwich immunoreactions; finally the fluorescent intensity of Eu3+ and Sm3+ was detected to reflect the quantity of anticardiolipin IgG and IgM. This assay showed a good relationship between fluorescence intensities and the concentration of anticardiolipin antibody(aCL) IgG and IgM, with a low-end sensitivity of 0.1 U/ml for IgG and 0.1 U/ml for IgM, respectively. The intra- and inter-assay coefficients of variation (CV) of the calibrators was 3.0% and 4.51% for IgG, and 2.76% and 4.45% for IgM. The average recovery was 100.38% for aCL IgG and 100.45% for aCL IgM. For serum samples, the results of our method showed a good correlation with those obtained with ELISA kit. Simultaneous detection of aCL-IgG and aCL-IgM in the same reaction well can optimize assay performance by avoiding potential influence of different reaction conditions-timing, and well-to-well difference in concentration and characteristics of cardiolipin antigen. The results of a combo aCL-IgG and aCL-IgM assay for the same sample are more consistent and more reliable. This dual-label time-resolved fluoroimmunoassay is sensitive for detecting aCL IgG and IgM across a wide concentration range with stable reagents and may assist in the clinical diagnosis of antiphospholipid syndrome.
1627 related Products with: Simultaneous Quantification of Anticardiolipin IgG and IgM by Time Resolved Fluoroimmunoassay.Adenovirus antibody, Mono Mouse anti Human IgM anti Mouse anti Human IgM anti anti-Human IgM, Mouse mon Mouse IgM Isotype control CRC3 CD3 (bispecific) Cl ROR1 Clone '1B4 antibody RBPMS HERMES Clone '1C12 MOUSE ANTI BOVINE ROTAVIR anti GSK3 Beta IgG2a (mon anti HIV 2 gp36 IgG1 (mon anti HIV 1 p24 IgG1 (mono
#26788445 2016/01/20 Save this To Up
Measuring serum concentrations of interleukin-33 in atopic dermatitis is associated with potential false positive results.In the search for valid biomarkers in inflammatory diseases, cytokine serum concentrations are often measured by enzyme-linked immunosorbent assay and correlated to disease activity. Interleukin-33 is a relatively newly described cytokine, which holds a promising potential as a biomarker for different diseases including atopic dermatitis. However, interfering human anti-animal IgG antibodies and heterophilic antibodies might give rise to false positive or negative results that often go unnoticed.
1871 related Products with: Measuring serum concentrations of interleukin-33 in atopic dermatitis is associated with potential false positive results.Interleukin-34 IL34 (N-t Interleukin-34 IL34 anti Human Interleukin-33 IL-3 interleukin 17 receptor C Recombinant Mouse Interle Human interleukin 2(IL-2) Single Donor Human Atopic ELISA Human , Interleukin Sterile filtered goat se Sterile filtered goat se Sterile filtered mouse s Sterile filtered rat ser
#26267654 2015/10/07 Save this To Up
Seroprevalence of IgG1 and IgG4 class antibodies against Mycobacterium avium subsp. paratuberculosis in Japanese population.Mycobacterium avium subsp. paratuberculosis (MAP) is the established causative agent of Johne's disease in cattle and other ruminants, and it has also been speculated to be a putative etiological agent of several human autoimmune diseases. It is acknowledged that dairy products deriving from infected animals play a role (could be vehicles) in exposing humans to MAP. MAP could stimulate the human immune system by means of their complex antigen (in the case of lipids, multivalent antigens) and may modulate it, acting as adjuvant molecules such as Freund's complete adjuvant. The immune system might be abnormally stimulated by the constant presence of MAP antigens (for example, in the dairy products), and this might be particularly relevant in genetically predisposed individuals. However, there is limited understanding about the current human exposure to MAP. The present study analyzed the antibody recognition profile of MAP lipophilic antigens in a cohort of 126 healthy Japanese. We measured the serum levels of total immunoglobulin G (IgG) and subclasses targeting MAP surface antigens through ethanol vortex indirect enzyme-linked immunosorbent assay (EVELISA) by using serum absorbed with Mycobacterium phlei. Elevated IgG (especially IgG1 and IgG4) responses were observed in 14% of the sera. To assess the specificity of EVELISA, the same samples were analyzed by means of a commercially available Johnelisa II kit. It was noteworthy that a high degree of correlation was observed when comparing the two methodologies (rs=0.7, p<0.0001). Moreover, in order to investigate the specificity of the binding, inhibition assay experiments were carried out also searching for antibodies against Bacillus Calmette-Guérin antigens, but no cross-reaction was observed. The result obtained represents the first evidence implying that the Japanese population is exposed to MAP, and additionally the existence of a foodborne chain of exposure that transmits MAP antigens to humans.
1141 related Products with: Seroprevalence of IgG1 and IgG4 class antibodies against Mycobacterium avium subsp. paratuberculosis in Japanese population.HIV1 integrase antibody, Mouse Anti-Mycobacterium anti HSV (II) gB IgG1 (mo anti HCMV IE pp65 IgG1 (m anti HCMV gB IgG1 (monocl HIV1 gp41 antibody, Monoc HIV2 p26 antibody, Monocl HIV1 Nef antibody, Monocl HIV1 Nef antibody, Monocl CD4 antibody, Monoclonal CD4 antibody, Monoclonal HIV1 p24 antibody, Monocl
#25841961 2015/05/19 Save this To Up
Technical note: Comparison of radial immunodiffusion and ELISA for quantification of bovine immunoglobulin G in colostrum and plasma.Historically, radial immunodiffusion (RID) has been the only method that directly measures IgG; however, recent studies have reported IgG concentrations in colostrum, milk, and plasma as measured using an ELISA. To our knowledge no comparison between RID and ELISA methods has been made for bovine colostrum or plasma. The objective of this study was to compare IgG concentrations measured by both methods in samples of bovine colostrum before and after heat treatment and bovine plasma. Concentration of IgG was quantified using a commercially available RID kit and a modified ELISA. Samples of bovine colostrum and plasma were collected from individual animals and colostrum was tested before and after heat treatment at 60°C for 30 min. All samples were tested using both methods. Pearson correlation coefficients were determined for RID and ELISA values from unheated colostrum, heat-treated colostrum, and plasma samples. Mixed models were used to determine the effect of assay on IgG measurement in colostrum and plasma and effect of heat treatment on IgG concentration in colostrum. A weak correlation was found between ELISA and RID results in plasma and unheated colostrum. Concentration of IgG was significantly lower in all sample types when measured by ELISA compared to RID. Thus, direct comparison of ELISA and RID results is not recommended. Colostrum IgG concentration significantly decreased after heat treatment as measured by ELISA, but means were not different when measured by RID. Correlation plots between colostrum values measured before and after heat treatment indicated changes in the colostrum protein matrix due to heat affected RID and ELISA assays differently. This investigation compared RID and ELISA results, but no conclusions could be drawn as to the accuracy of either assay.
2281 related Products with: Technical note: Comparison of radial immunodiffusion and ELISA for quantification of bovine immunoglobulin G in colostrum and plasma.Bovine Androstenedione,AS Bovine UDP-GlcNAc betaGal Bovine prolactin-induced ELISA 5α-Androstane-3α, ELBI ELISA grade bovine t ELBI ELISA grade bovine t ELISA grade bovine type I Rat TGF-beta-inducible ea Rat TGF-beta-inducible ea ELBII ELISA grade bovine ELBII ELISA grade bovine ELISA grade bovine type I
#25467991 2015/01/31 Save this To Up
Establishment of an antibody avidity test to differentiate vaccinated cattle from those naturally infected with Mycoplasma bovis.Mycoplasma bovis is a major pathogen of bovine respiratory disease (BRD) in China and a live attenuated vaccine has recently been developed. This study aimed to establish an IgG avidity test to differentiate between naturally infected and vaccinated animals. An indirect ELISA (iELISA) was first established in the laboratory to detect antibodies specific to M. bovis using whole cell proteins as coating antigens and serum samples from experimentally infected cattle. The specificity and sensitivity of the iELISA was confirmed using a commercial ELISA kit as a reference standard. Both tests showed substantial agreement as indicated by a κ value of 0.78 (95% confidence interval, CI, 0.62, 0.93), and an overall 92.0% (80/87) agreement between the two tests. Based on the laboratory iELISA, a sodium thiocyanate (NaSCN) competitive iELISA was then developed for the detection of IgG avidity, expressed as relative avidity index (AI). Two-hundred and one experimentally immunised and naturally infected animals were used. These comprised 36 immunised calves, 38 negative control calves, 37 naturally infected calves, 87 calves of unknown status, and an additional three immunised calves that were used for a time trial. By testing true positive and negative antisera from either naturally infected or immunised calves, the AI cut-off value was defined as 70.4%. The diagnostic accuracy of the in-house NaSCN competitive iELISA was determined using serum samples collected from the experimental animals. The IgG avidity test demonstrated 96.0% sensitivity (95% CI 80.5%, 99.3%) and 95.8% specificity (95% CI 79.8%, 99.3%), and was successfully established as a valuable first test for differentiating vaccinated animals from those infected with M. bovis. This test may be a useful tool for clarifying the magnitude of M. bovis infection and in assessing the efficacy of vaccination in exposed animal populations.
1648 related Products with: Establishment of an antibody avidity test to differentiate vaccinated cattle from those naturally infected with Mycoplasma bovis.Shiga Toxin 1 antibody, M Shiga Toxin 2 antibody, M Cholera toxin antibody, M Clostridium botulinum D T Clostridum difficile toxi Clostridum difficile toxi Clostridum difficile toxi Clostridum difficile toxi Clostridum difficile toxi Clostridum difficile toxi Clostridum difficile toxi Diphtheria toxin antibody
#25445793 2014/12/16 Save this To Up
Expression of E2 gene of bovine viral diarrhea virus in Pichia pastoris: a candidate antigen for indirect Dot ELISA.The E2 gene containing the EcoR I and Not I sites of bovine viral diarrhea virus (BVDV) was amplified from the plasmid pMD-18T-E2 of the HB-bd isolated, and inserted into Pichia pastoris (P. pastoris) expression vector pPIC9K, and transfected into Escherichia coli DH5α. The recombinant plasmid pPIC9K-E2 was digested by the SalI restriction enzyme and transformed into the P. pastoris strain GS115 by electroporation. High copy integrative transformants were obtained by G418 screening and induced for expression with methanol. The expressed products in the culture medium were identified by the sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE), the Western blotting and the antibody test for immunity. An indirect Dot-ELISA for the detection of antibody against BVDV was established by the recombinant E2 protein as the coating antigen. The reaction conditions of the indirect Dot-ELISA were optimized. The coating concentration of the E2 recombinant protein antigen, the dilution of serum sample, the optimal concentration of HRP labeled antibody, the optimal blocking reagent and blocking time were studied. 100 sera samples from cows in the field were tested for the antibody against BVDV by the Dot-ELISA and the IDEXX HerdChek BVDV antibody ELISA kit simultaneously to compare the specificity, sensitivity and accuracy. The results showed that the expressed products in the culture medium resulted in single band of 44kDa by SDS-PAGE and Western blotting. The results of the immunogenicity assay indicated that the protein E2 expressed in P. pastoris could induce the experimental animals of the rabbit to produce BVDV specific antibodies. The results of the indirect Dot-ELISA showed that the optimal coating concentration of the E2 recombinant protein was 2.0μg/mL, the bovine serum dilution was 1:100, the optimal concentration of HRP-labeled rabbit anti-bovine antibody IgG was 1:500, and the optimal blocking reagent was 3% glutin-TBS and blocking for 45min. The indirect Dot-ELISA showed 96.7%, 92.5% and 95% in the terms of specificity, sensitivity and accuracy compared to the IDEXX ELISA test kit. The indirect Dot-ELISA using the E2 recombinant protein can be used for the detection of antibody against the BVDV and could be considered in the surveillance programs.
1740 related Products with: Expression of E2 gene of bovine viral diarrhea virus in Pichia pastoris: a candidate antigen for indirect Dot ELISA.Recombinant Hemagglutinin HBV surface recombinant a HBV surface recombinant a Recombinant Viral Antige Rubella virus E2 recombin MOUSE ANTI BOVINE ROTAVIR Viral antibodies, anti-R DNA (cytosine 5) methyltr Recombinant Chikungunya W Recombinant Chikungunya M Bovine Mullerian Inhibiti Human E Antigen of Hepati
#25229708 2014/09/18 Save this To Up
Serosurvey of Crimean-Congo hemorrhagic fever virus in domestic animals, Gujarat, India, 2013.Crimean-Congo hemorrhagic fever (CCHF) is a tick-borne viral disease that causes a fatal hemorrhagic illness in humans. This disease is asymptomatic in animals. CCHF was first confirmed in a nosocomial outbreak in 2011 in Gujarat State. Another notifiable outbreak occurred in July, 2013, in Karyana Village, Amreli district, Gujarat State. Anti-CCHF virus (CCHFV) immunoglobulin G (IgG) antibodies were detected in domestic animals from the adjoining villages of the affected area, indicating a considerable amount of positivity against domestic animals. The present serosurvey was carried out to determine the prevalence of CCHFV among bovine, sheep, and goat populations from 15 districts of Gujarat State, India. A total of 1226 serum samples from domestic animals were screened for IgG antibodies using a CCHF animal IgG enzyme-linked immunosorbent assay (ELISA) kit from the Centers for Disease Control and Prevention. Antibodies were detected in all the 15 districts surveyed; with positivity of 12.09%, 41.21%, and 33.62% in bovine, sheep, and goat respectively. This necessitates the surveillance of CCHFV IgG antibodies in animals and hemorrhagic fever cases in human.
2820 related Products with: Serosurvey of Crimean-Congo hemorrhagic fever virus in domestic animals, Gujarat, India, 2013.Human Epstein-Barr Virus Mouse Epstein-Barr Virus Recombinant Influenza B V Recombinant Influenza B V Recombinant Influenza B V Native Influenza A Virus Native Influenza A Virus Native Influenza A Virus Recombinant Influenza A V Recombinant Influenza A V Recombinant Influenza A V Native Parainfluenza Viru
#24834263 2014/05/16 Save this To Up
New features of fascioliasis in human and animal infections in Ilam province, Western Iran.The aim of this study was to investigate the prevalence of human and animal fascioliasis in Ilam Province, Iran.
1860 related Products with: New features of fascioliasis in human and animal infections in Ilam province, Western Iran.Proteins and Antibodies H Proteins and Antibodies H Anti AGO2 Human, Monoclon Anti AGO2 Human, Monoclon CELLKINES Natural Human I Human Interleukin-4 IL-4 Human Interleukin-6 IL-6 Human Interleukin-7 IL-7 Human Interleukin-2 IL-2 Human Macrophage Inflamma Human Macrophage Inflamma Human Macrophage Inflamma
#24144024 2013/10/22 Save this To Up
Study on outbreak of Neospora caninum-associated abortion in dairy cows in Tabriz (Northwest Iran) by serological, molecular and histopathologic methods.To determine Neospora caninum (N. caninum) as a cause of bovine abortion in dairy cows by ELISA, PCR and Pathological methods in Tabriz, Northwest of Iran.
1028 related Products with: Study on outbreak of Neospora caninum-associated abortion in dairy cows in Tabriz (Northwest Iran) by serological, molecular and histopathologic methods.BYL-719 Mechanisms: PI3K- Rabbit Anti-FGF3 Oncogene Interleukin-34 IL34 (N-t Interleukin-34 IL34 anti Sterile filtered goat se Sterile filtered goat se Sterile filtered mouse s Sterile filtered rat ser ING1B antisense ING1B sense Interferon γ p19 INK4D
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