Results from an extended culture for mycobacterium,
auramine stains for acid-fast bacilli, and further histopathologic staining for fungal hyphae were negative.
12,29] Although staining with
auramine O and fluorescence microscopy improves sensitivity by about 10%, [13] overall performance remains suboptimal, meaning that a negative smear does not exclude the diagnosis of TB in HIV co-infected patients.
The illegal dyes, called Rhodamine-B and
Auramine, are fluorescent pink or yellow.
Kulm oli tugevasti maapinda tunginud ja
auramine oli nork, sest seda takistas paks lumekate.
They are acid-fast and
auramine positive, but negative for PAS, Giemsa, Gram, and silver stains.
Acid-fast bacilli (AFB) were isolated from the FNA using an
auramine stain, and the mycobacterial growth indicator tube culture was positive at 3 weeks.
The guide contains a dye that fluoresces under the same light wavelengths that excite
Auramine stains, which are used to stain tuberculosis Acid Fast Bacilli (AFB) for review with fluorescence microscopes.
Selvakumar et al (15-19) and Bobadilla-del-Valle et al (20) reported that storage of sputum samples in cetylpyridinium chloride solution resulted in reduced sensitivity of ZN and
auramine phenol staining methods.
Light emitting diodes for
auramine O fluorescence microscopic screening of Mycobacterium tuberculosis.
Pulp and paper production workers have been exposed to a complex mixture of hazardous substances, including known or suspected carcinogens such as wood dust, various wood extracts and associated bioaerosols, reduced sulfur compounds, talc, formaldehyde, combustion products, epichlorohydrin, acid mists,
auramine and other benzidine-based dyes, and a range of chlorinated organic compounds (Kauppinen et al.
However, in actual practice, other nonpermitted synthetic dyes like
auramine, metanil yellow, lead chromate, rhodamine, sudan-3 and 4, orange-2 and Malachite green, which pose serious health hazards, as they are mutagenic and potential carcinogens, are being used as food colours in the market.
Alternatives to the acid-fast smear include several other stains, such as Ziehl-Neelsen, or fluorochrome staining with
auramine or
auramine/rhodamine, which may be faster to screen.