105 research outputs found

    Evaluation of anti-inflammatory activity of Boswellia serrata on carrageenan induced paw edema in albino Wistar rats

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    Background: Inflammation is a response of the immune system, guarding the individual against infection. It is a major burning problem worldwide and billions of individuals are affected. Moreover administration of current anti-inflammatory drugs is often associated with severe side effects. Hence alternative therapeutic modules are necessitated. Now a day’s herbal medicines are using due to their high efficacy and harmless to cure the diseases. In traditional medicine Boswellia serrata (B. serrata) has been widely used to treat various diseases which also include Inflammation. Till now the effect of B serrata on inflammation was not well understood. Hence In the present study we made an attempt to evaluate the anti-inflammatory activity of B. Serrata against carrageenan induced paw edema which is acute model of inflammation.Methods: Albino wistar rats were divided into five groups, group 1 treated with carrageenan (control) whereas group 2, 3, and 4 treated with different doses (50, 100, and 200 mg/kg/bw) of B. serrata along with carrageenan, respectively. Group 5 treated with standard drug (Indomethacin 10 mg/kg/bw). Carrageenan induced paw edema and histopathological study of paw were evaluated in all experimental rats.Results: The present study clearly demonstarted that carrageenan significantly increased paw edema and cellular infiltrates whereas B. serrata treated rats significantly decreased the paw edema and histopathological finding of cellular infiltrates and found to be greater at higher concentration i.e., 200 mg/kg/b/wt as compared to standard drug. Conclusions: The findings from the above study proves that B. serrata has high anti-inflammatory activity and supports its usage in traditional medicine as herbal anti-inflammatory medicine.

    Studies on the extraction and characterization of thermostable a-amylase from pericarp of Borassus indica

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    Thermostable a-amylase was extracted and characterized from the fruits (pericarp) of Borassus indica. Analysis on the influence of various physico-chemical parameters on the extracted enzyme revealed a Vmax of 0.793 and a Km of 0.022. The optimum temperature was found to be 370C at pH 4.5. The stability studies on enzyme activity envisaged that the enzyme is stable up to 800C and retained its activity over a wide range of pH (4.0 – 8.5). Significant enhancement in the enzyme activity was observed in the presence of metal ions like Manganese and Strontium and an insignificant decrement in the presence of Sodium ions.African Journal of Biotechnology Vol. 4 (3), pp. 289-291, 200

    Modified Assay Procedure for the Estimation of Serum Glucose using

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    ABSTRACT Determination of blood glucose levels is very important to know the physiological condition of the human beings as the hormonal imbalance may cause abnormalities in glucose metabolism. The traditional methods of glucose estimation by colorimetric and titrimetric methods were involved with huge expenditure and time. The modified colorimetric microwell reader method proposed in the present study was performed with small quantities of sample and reagents with the same linearity that was observed in the normal colorimetric analysis. The modified method not only reduces the cost of the test to almost one third of the normal colorimetric method but also provide an opportunity to screen the large number of samples in a short duration of time

    Development of Monoclonal Antibodies Against Cry1Ac/Ab Protein for Designing of Sandwich ELISA to Detect BT Toxin from Cotton Seeds and Leaves

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    The design of the study is to develop monoclonal antibodies against Cry1Ac/Ab protein for designing os sandwich ELISA(hybridoma technology). Hybridoma technology was invented by Cesar Milstein and Georges J.F Kohler in the year 1975 and is an unique method used to produce identical antibodies in maximum quantities. Monoclonal antibodies were developed by immunization of Balb/C mice with Cry1Ac/Ab Protein. Titer values of mice tail bleeds were checked and the best mice with higher titer value was used for fusion. Immunized mice spleen cells were fused with Myeloma cells (SP2-O), using polyethylene glycol (PEG) and the fused cells were incubated with HAT medium for 12 days and initially 400 positive hybridoma clones were obtained, of which 13 potential clones were selected using indirect ELISA against Cry1Ac/Ab recombinant antigen. Cross reactivity was ruled out using indriet ELSA against cry proteins such as Cry2A, Cry1F and CP4EPSPS using. Cloning was carried out twice for all 13 clones by limiting dilution factor and pure single clones were selected. The class IgG/IgM/IgA and sub classes IgG1, IgG2, IgG3 antibodies are determined by isotyping. Determination of class and subclass of an antibody is very important for selecting proper purification methods. Commercially available rapid isotyping kits were used for isotyping which provides the information of 1) IgG, IgM, IgA, IgG2a, IgG2b or IgG3 2) Light chain identification as either kappa or lambda. All pure clones were preserved in Liquid Nitrogen for future use to develop immunological kits for detection of Cry1Ac/Ab present in the plant tissue.The design of the study is to develop monoclonal antibodies against Cry1Ac/Ab protein for designing os sandwich ELISA(hybridoma technology). Hybridoma technology was invented by Cesar Milstein and Georges J.F Kohler in the year 1975 and is an unique method used to produce identical antibodies in maximum quantities. Monoclonal antibodies were developed by immunization of Balb/C mice with Cry1Ac/Ab Protein. Titer values of mice tail bleeds were checked and the best mice with higher titer value was used for fusion. Immunized mice spleen cells were fused with Myeloma cells (SP2-O), using polyethylene glycol (PEG) and the fused cells were incubated with HAT medium for 12 days and initially 400 positive hybridoma clones were obtained, of which 13 potential clones were selected using indirect ELISA against Cry1Ac/Ab recombinant antigen. Cross reactivity was ruled out using indriet ELSA against cry proteins such as Cry2A, Cry1F and CP4EPSPS using. Cloning was carried out twice for all 13 clones by limiting dilution factor and pure single clones were selected. The class IgG/IgM/IgA and sub classes IgG1, IgG2, IgG3 antibodies are determined by isotyping. Determination of class and subclass of an antibody is very important for selecting proper purification methods. Commercially available rapid isotyping kits were used for isotyping which provides the information of 1) IgG, IgM, IgA, IgG2a, IgG2b or IgG3 2) Light chain identification as either kappa or lambda. All pure clones were preserved in Liquid Nitrogen for future use to develop immunological kits for detection of Cry1Ac/Ab present in the plant tissue

    Therapeutic implications of recombinant human erythropoietin in anaemic related clinical manifestations

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    The introduction of recombinant human erythropoietin (RHUEPO) has revolutionised the treatment strategies for patients suffering with anaemia of chronic renal disease and chronic heart failure. Clinical studies and several observational evidences have demonstrated that RHUEPO is also useful in various non-uraemic conditions including haematological and oncological disorders, prematurity, HIV infection and preoperative therapies. The successful treatment of all the anaemic related malfunctions with recombinant human erythropoietin (RHUEPO) has become a standard treatment tool for dialysis patients and as an interesting therapeutic option for several forms of non-renal anaemia. As a conesquence of both, RHUEPO has achieved the highest annual sales worldwide and the potential of it increases its scope in the future prospective also

    Pancreatic adenocarcinoma in type 2 progressive familial intrahepatic cholestasis

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    <p>Abstract</p> <p>Background</p> <p>BSEP disease results from mutations in ABCB11, which encodes the bile salt export pump (BSEP). BSEP disease is associated with an increased risk of hepatobiliary cancer.</p> <p>Case Presentation</p> <p>A 36 year old woman with BSEP disease developed pancreatic adenocarcinoma at age 36. She had been treated with a biliary diversion at age 18. A 1.7 Ă— 1.3 cm mass was detected in the pancreas on abdominal CT scan. A 2 cm mass lesion was found at the neck and proximal body of the pancreas. Pathology demonstrated a grade 2-3 adenocarcinoma with invasion into the peripancreatic fat.</p> <p>Conclusions</p> <p>Clinicians should be aware of the possibility of pancreatic adenocarcinoma in patients with BSEP disease.</p

    Critical exponents and equation of state of the three-dimensional Heisenberg universality class

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    We improve the theoretical estimates of the critical exponents for the three-dimensional Heisenberg universality class. We find gamma=1.3960(9), nu=0.7112(5), eta=0.0375(5), alpha=-0.1336(15), beta=0.3689(3), and delta=4.783(3). We consider an improved lattice phi^4 Hamiltonian with suppressed leading scaling corrections. Our results are obtained by combining Monte Carlo simulations based on finite-size scaling methods and high-temperature expansions. The critical exponents are computed from high-temperature expansions specialized to the phi^4 improved model. By the same technique we determine the coefficients of the small-magnetization expansion of the equation of state. This expansion is extended analytically by means of approximate parametric representations, obtaining the equation of state in the whole critical region. We also determine a number of universal amplitude ratios.Comment: 40 pages, final version. In publication in Phys. Rev.

    Human Peripheral Blood Mononuclear Cells Exhibit Heterogeneous CD52 Expression Levels and Show Differential Sensitivity to Alemtuzumab Mediated Cytolysis

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    Alemtuzumab is a monoclonal antibody that targets cell surface CD52 and is effective in depleting lymphocytes by cytolytic effects in vivo. Although the cytolytic effects of alemtuzumab are dependent on the density of CD52 antigen on cells, there is scant information regarding the expression levels of CD52 on different cell types. In this study, CD52 expression was assessed on phenotypically distinct subsets of lymphoid and myeloid cells in peripheral blood mononuclear cells (PBMCs) from normal donors. Results demonstrate that subsets of PBMCs express differing levels of CD52. Quantitative analysis showed that memory B cells and myeloid dendritic cells (mDCs) display the highest number while natural killer (NK) cells, plasmacytoid dendritic cells (pDCs) and basophils have the lowest number of CD52 molecules per cell amongst lymphoid and myeloid cell populations respectively. Results of complement dependent cytolysis (CDC) studies indicated that alemtuzumab mediated profound cytolytic effects on B and T cells with minimal effect on NK cells, basophils and pDCs, correlating with the density of CD52 on these cells. Interestingly, despite high CD52 levels, mDCs and monocytes were less susceptible to alemtuzumab-mediated CDC indicating that antigen density alone does not define susceptibility. Additional studies indicated that higher expression levels of complement inhibitory proteins (CIPs) on these cells partially contributes to their resistance to alemtuzumab mediated CDC. These results indicate that alemtuzumab is most effective in depleting cells of the adaptive immune system while leaving innate immune cells relatively intact
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