Rapid detection of mycobacterial disease is essential. Using multiple specimen types and concentrations of mycobacteria, we compared two commercial auramine O stains. The more rapid stain permitted consistent acid-fast bacillus quantitation and exhibited less debris staining, and the staining procedure required less time ( approximately 2 min) to perform. These results suggest that the rapid st...

In order to evaluate the capacity of laser scanning cytometry (LSC) to detect acid-fast bacilli directly on clinical samples, a comparison between Kinyoun-stained smears analyzed under light microscopy and propidium iodide-auramine-stained smears analyzed by LSC was performed. The results were compared with those for culture on BACTEC MGIT 960. LSC is a new, reliable methodology to detect MYCOB...

In this solid-phase competitive enzyme-linked immunosorbent assay for alpha 1-acid glycoprotein in serum or urine, antiserum to human alpha 1-acid glycoprotein is incubated with solid-phase-bound alpha 1-acid glycoprotein in the presence of standard or sample. Incubation with second antibody labeled with alkaline phosphatase then follows, before development with substrate. Results obtained corr...

background: cryptosporidiosis is a common coccidian parasite infection in patients with diarrhea that has worldwide distribution especially in developed countries. therefore,the aim of this study was to determine the occurrence of cryptosporidium infection in patients with gastroenteritis admitted to hospitals of mazandaran university of medical sciences by parasitological and molecular methods...

cryptosporidium is an obligate intracellular protozoan parasite infecting a wide range of hosts. the current study investigated the genetic profile of cryptosporidium species in calves in liverpool, england. fifty-two calve fecal samples were collected from a farm and initially screened by auramine phenol, modified ziehl-neelsen and elisa. pcr analysis of 18s rrna gene was carried out for the p...

background: tuberculosis (tb) is an increasing public health concern worldwide. on a global scale it has a devastating impact in developing nations. genital tb, an extrapulmonary form, is not uncommon particularly in areas where pulmonary tb is prevalent. genital tb may be asymptomatic or may even masquerade as other gynaecological conditions; hence, diagnosis requires a high degree of suspicio...

A sensitive and selective assay of DNA is developed by utilizing a signal transduction strategy with the rational redesign of the hairpin structured G-quadruplex molecular switch (G4-MS) assembled using auramine O (AO). By monitoring the changes of the fluorescent signal, we could identify and further quantitatively determine the target DNA in the samples.

We report the findings of a longitudinal observational study on HIV-infected patients grouped by presumed transmission group, who had diarrhoea. The purpose of this study was to assess the prevalence of and factors associated with Cryptosporidium infection on these patients. Modifiied formol-ether concentration followed by modified Ziehl-Neelsen and phenol-auramine/carbol-fuchsin staining techn...

BACKGROUND Sputum microscopy is the only diagnostic for tuberculosis (TB) available at peripheral levels of health service in resource-poor countries. Its sensitivity is reduced in high HIV-prevalence settings. Sodium hypochlorite (NaOCl) specimen sedimentation prior microscopy and light-emitting diode (LED)-fluorescence microscopy (FM) can individually improve performance of microscopy. This s...