[Modification of Harada's method for rapid staining of mycobacteria]. 1992

K Kawatsu, and S Izumi, and M Yumi, and K I Butt, and T Wang
National Institute for Leprosy, Tokyo.

Harada employed periodic acid-carbol pararosaniline and periodic acid-methenamine silver stain for demonstrating chromophobic bacilli which do not get stained with conventional carbol fuchsin or counter stain. This staining method takes considerable time for complete oxidation with periodic acid. We have succeeded in reducing the oxidation time by using hydrogen peroxide treatment prior to periodic acid and with the use of acidified sodium hydrogen sulfite treatment before carbol pararosaniline stain. We also found that in methenamine silver stain, combined use of semicarbazide and microwave treatment can shorten the whole staining time up to four hours without losing ito sensitivity.

UI MeSH Term Description Entries
D008819 Mice, Nude Mutant mice homozygous for the recessive gene "nude" which fail to develop a thymus. They are useful in tumor studies and studies on immune responses. Athymic Mice,Mice, Athymic,Nude Mice,Mouse, Athymic,Mouse, Nude,Athymic Mouse,Nude Mouse
D008872 Microwaves That portion of the electromagnetic spectrum from the UHF (ultrahigh frequency) radio waves and extending into the INFRARED RAYS frequencies. EHF Waves,Extremely High Frequency Radio Waves,Micro Wave,Micro Waves,Ultrahigh Frequency Waves,Microwave Radiation,EHF Wave,Micro Waves,Microwave,Microwave Radiations,Radiation, Microwave,Ultrahigh Frequency Wave,Wave, EHF,Wave, Micro,Wave, Ultrahigh Frequency,Waves, Micro
D009161 Mycobacterium A genus of gram-positive, aerobic bacteria. Most species are free-living in soil and water, but the major habitat for some is the diseased tissue of warm-blooded hosts. Mycobacteria
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006861 Hydrogen Peroxide A strong oxidizing agent used in aqueous solution as a ripening agent, bleach, and topical anti-infective. It is relatively unstable and solutions deteriorate over time unless stabilized by the addition of acetanilide or similar organic materials. Hydrogen Peroxide (H2O2),Hydroperoxide,Oxydol,Perhydrol,Superoxol,Peroxide, Hydrogen
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
D001135 Armadillos Burrowing, chiefly nocturnal mammals of the family Dasypodidae having bodies and heads encased in small bony plates. They are widely distributed in the warmer parts of the Americas. Armadillo
D013194 Staining and Labeling The marking of biological material with a dye or other reagent for the purpose of identifying and quantitating components of tissues, cells or their extracts. Histological Labeling,Staining,Histological Labelings,Labeling and Staining,Labeling, Histological,Labelings, Histological,Stainings
D013997 Time Factors Elements of limited time intervals, contributing to particular results or situations. Time Series,Factor, Time,Time Factor
D016622 Silver Staining The use of silver, usually silver nitrate, as a reagent for producing contrast or coloration in tissue specimens. Silver Nitrate Staining,Nitrate Staining, Silver,Staining, Silver,Staining, Silver Nitrate

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