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Storage stability of dengue IgM and IgG antibodies in whole blood and serum dried on filter paper strips detected by ELISA. 1994

S Ruangturakit, and S Rojanasuphot, and A Srijuggravanvong, and S Duangchanda, and S Nuangplee, and A Igarashi
Department of Medical Sciences, Ministry of Public Health, Nonthaburi, Thailand.

Blood specimens from 133 patients clinically diagnosed as dengue virus infection by physicians in Nakhon Phanom Hospital, Thailand, were examined to detect anti-dengue IgM and IgG antibodies by antibody capture ELISA. The blood specimens were divided into 3 types of storage; (1) frozen serum aliquots, (2) whole blood dried on filter paper strips, and (3) sera dried on filter paper strips. These specimens were stored for the periods of 1, 3, 4, and 5 months, at -20 degrees C in the case of frozen serum aliquots, or at room temperature in the case of specimens dried on filter paper strips, before examined in paralleled by the ELISA. Anti-dengue IgG antibodies were stable for at least 5 months of storage as dried whole blood or serum on filter paper strips. So were the anti-dengue IgM antibodies in the dried whole blood from secondary dengue cases. Anti-dengue IgM antibodies from primary dengue cases declined slowly in whole blood and more rapidly in serum, both dried on filter paper strips. In the serum dried on filter paper strips, even anti-dengue IgM antibodies from secondary cases decreased significantly on storage. We suggest that diagnosis on dengue infections by IgM-capture ELISA should be performed within 1 month after the test specimens are collected as whole blood, not as serum, when the filter paper method is used for sample collection.

UI MeSH Term Description Entries
D007074 Immunoglobulin G The major immunoglobulin isotype class in normal human serum. There are several isotype subclasses of IgG, for example, IgG1, IgG2A, and IgG2B. Gamma Globulin, 7S,IgG,IgG Antibody,Allerglobuline,IgG(T),IgG1,IgG2,IgG2A,IgG2B,IgG3,IgG4,Immunoglobulin GT,Polyglobin,7S Gamma Globulin,Antibody, IgG,GT, Immunoglobulin
D007075 Immunoglobulin M A class of immunoglobulin bearing mu chains (IMMUNOGLOBULIN MU-CHAINS). IgM can fix COMPLEMENT. The name comes from its high molecular weight and originally was called a macroglobulin. Gamma Globulin, 19S,IgM,IgM Antibody,IgM1,IgM2,19S Gamma Globulin,Antibody, IgM
D008851 Micropore Filters A membrane or barrier with micrometer sized pores used for separation purification processes. Millipore Filters,Filter, Micropore,Filter, Millipore,Filters, Micropore,Filters, Millipore,Micropore Filter,Millipore Filter
D010209 Paper Thin sheets made from wood pulp and other fibrous substances, used for writing, drawing, printing, image duplication or wrapping. Papers
D001793 Blood Preservation The process by which blood or its components are kept viable outside of the organism from which they are derived (i.e., kept from decay by means of a chemical agent, cooling, or a fluid substitute that mimics the natural state within the organism). Blood Preservations,Preservation, Blood,Preservations, Blood
D001800 Blood Specimen Collection The taking of a blood sample to determine its character as a whole, to identify levels of its component cells, chemicals, gases, or other constituents, to perform pathological examination, etc. Blood Specimen Collections,Collection, Blood Specimen,Collections, Blood Specimen,Specimen Collection, Blood,Specimen Collections, Blood
D003715 Dengue An acute febrile disease transmitted by the bite of AEDES mosquitoes infected with DENGUE VIRUS. It is self-limiting and characterized by fever, myalgia, headache, and rash. SEVERE DENGUE is a more virulent form of dengue. Dengue Fever,Break-Bone Fever,Breakbone Fever,Classical Dengue,Classical Dengue Fever,Break Bone Fever,Classical Dengue Fevers,Classical Dengues,Dengue Fever, Classical,Dengue, Classical,Fever, Break-Bone,Fever, Breakbone,Fever, Dengue
D003716 Dengue Virus A species of the genus FLAVIVIRUS which causes an acute febrile and sometimes hemorrhagic disease in man. Dengue is mosquito-borne and four serotypes are known. Breakbone Fever Virus,Breakbone Fever Viruses,Dengue Viruses,Fever Virus, Breakbone,Fever Viruses, Breakbone,Virus, Breakbone Fever,Virus, Dengue,Viruses, Breakbone Fever,Viruses, Dengue
D004797 Enzyme-Linked Immunosorbent Assay An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound to an immunosorbent substrate, they both retain their biologic activity; the change in enzyme activity as a result of the enzyme-antibody-antigen reaction is proportional to the concentration of the antigen and can be measured spectrophotometrically or with the naked eye. Many variations of the method have been developed. ELISA,Assay, Enzyme-Linked Immunosorbent,Assays, Enzyme-Linked Immunosorbent,Enzyme Linked Immunosorbent Assay,Enzyme-Linked Immunosorbent Assays,Immunosorbent Assay, Enzyme-Linked,Immunosorbent Assays, Enzyme-Linked
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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