Biomaterial Database

[Detection antigen of Rickettsia tsutsugamushi by using monoclonal antibody]. 1993

H Zhang

Beijing Tropical Medicine Research Institute.

Dot-ELISA was used with HRP-labelled monoclonal antibodies Kp3 (IgGi) and Kp4-6 (IgM) against antigen of the Karp strain of Rickettsia tsutsugamushi to detect the antigen of R. tsutsugamushi. The positive rate of sera of 56 acute scrub typhus patients and 37 wild rats caught from the countryside of the endemic area as well as 29 batches of chiggers collected from the wild rats were 92.9%, 100% and 89.7%, respectively. No cross reaction was found with antigens of other rickettsia groups such as R. mooseri, R. prowazeki, R.burneti and R. rickettsia. In patients suffering from acute scrub typhus the antigen of R. tsutsugamushi could be detected earlier in the course of illness than the antibody. This method is very sensitive that an amount of antigen of 6.7ng/microliters can be detected. It is easy to perform and the results can be read by naked eye.

UI	MeSH Term	Description	Entries
D009115	Muridae	A family of the order Rodentia containing 250 genera including the two genera Mus (MICE) and Rattus (RATS), from which the laboratory inbred strains are developed. The fifteen subfamilies are SIGMODONTINAE (New World mice and rats), CRICETINAE, Spalacinae, Myospalacinae, Lophiomyinae, ARVICOLINAE, Platacanthomyinae, Nesomyinae, Otomyinae, Rhizomyinae, GERBILLINAE, Dendromurinae, Cricetomyinae, MURINAE (Old World mice and rats), and Hydromyinae.	Murids,Murid
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
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D000911	Antibodies, Monoclonal	Antibodies produced by a single clone of cells.	Monoclonal Antibodies,Monoclonal Antibody,Antibody, Monoclonal
D000942	Antigens, Bacterial	Substances elaborated by bacteria that have antigenic activity.	Bacterial Antigen,Bacterial Antigens,Antigen, Bacterial
D012285	Orientia tsutsugamushi	A gram-negative, rod-shaped to coccoid bacterium. It is the etiologic agent of SCRUB TYPHUS in humans and is transmitted by mites from rodent reservoirs.	Rickettsia tsutsugamushi
D012612	Scrub Typhus	An acute infectious disease caused by ORIENTIA TSUTSUGAMUSHI. It is limited to eastern and southeastern Asia, India, northern Australia, and the adjacent islands. Characteristics include the formation of a primary cutaneous lesion at the site of the bite of an infected mite, fever lasting about two weeks, and a maculopapular rash.	Tsutsugamushi Disease,Typhus, Scrub,Orientia tsutsugamushi Infection,Tsutsugamushi Fever,Disease, Tsutsugamushi,Diseases, Tsutsugamushi,Fever, Tsutsugamushi,Fevers, Tsutsugamushi,Infection, Orientia tsutsugamushi,Infections, Orientia tsutsugamushi,Orientia tsutsugamushi Infections,Tsutsugamushi Diseases,Tsutsugamushi Fevers
D014324	Trombiculidae	Family of MITES in the superfamily Trombiculoidea, suborder Prostigmata, which attack humans and other vertebrates, causing DERMATITIS and severe allergic reactions. Chiggers, red bugs, and harvest mites commonly refer to the larval stage of Trombiculid mites, the only parasitic stage of the mite's life cycle.	Chiggers,Harvest Mites,Leptotrombidium,Neotrombicula,Red Bugs,Trombicula,Trombiculid Mites,Eutrombicula,Bug, Red,Bugs, Red,Chigger,Eutrombiculas,Harvest Mite,Leptotrombidiums,Mite, Harvest,Mite, Trombiculid,Mites, Harvest,Mites, Trombiculid,Neotrombiculas,Red Bug,Trombiculas,Trombiculid Mite