|Author||Katti, M. K. ♦ Azeem, M.|
|Source||Sree Chitra Tirunal Institute for Medical Sciences & Technology|
|Publisher||Fems Immunology and Medical Microbiology|
|Subject Domain (in DDC)||Technology ♦ Medicine & health ♦ Diseases|
|Subject Domain (in MeSH)||Hemic and Immune Systems ♦ Anatomy ♦ Immune System Diseases ♦ Diseases ♦ Immune System Phenomena ♦ Biological Sciences|
|Abstract||A modified passive hemagglutination using double aldehyde stabilized cells (tanned sheep erythrocytes treated with glutaraldehyde and pyruvic aldehyde) was evaluated for detection of both antimycobacterial antibodies and circulating mycobacterial antigens simultaneously in human serum samples from patients with pulmonary tuberculosis (n=40) and a control group (n=44). Double aldehyde stabilized cells sensitized with an optimum dose of 200 mu g mL(-1) of sonicate extract of Mycobacterium tuberculosis antigens was used as single probe to detect both antibodies and antigen, respectively, by passive hemagglutination and passive hemagglutination inhibition. The sensitivity limit of passive hemagglutination inhibition was determined to be 280 ng mL(-1) using a dose-response curve. Sensitivity of passive hemagglutination and passive hemagglutination inhibition, respectively, was 90% and 52.5%, and specificity was 91% and 100%. Although passive hemagglutination and passive hemagglutination inhibition need further evaluation, these erythrocyte-based immunoassays are potentially advantageous, especially as double aldehyde stabilized sensitized cells could be used as a single probe for detection of both antibodies and antigen. In addition, erythrocyte-based immunoassays are rapid, simple and cost-effective with a high degree of sensitivity.|
|Education Level||UG and PG|
|Learning Resource Type||Article|
|Educational Framework||Medical Council of India (MCI)|
|Journal||Fems Immunology and Medical Microbiology|
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