Aims: To evaluate three tests used routinely for the diagnosis of herpes simplex virus (HSV) keratitis. Methods: Corneal scrapings from 28 patients with clinically typical dendritic corneal ulcer suggestive of HSV keratitis, and 30 patients with clinically non-viral corneal ulcers, were tested by (i) Giemsa stain for multinucleated giant cells, (ii) immunofluorescence assay (IFA) for HSV-1 anti...

BACKGROUND Helicobacter pylori, which is associated with many upper gastrointestinal diseases, is found in half of the population of the world. Several special stains and immunohistochemistry stain for H. pylori are available. The need for and usefulness of immunohistochemical (IHC) technique has been debated for years. Toluidine blue is a simple stain for microbiological studies and is easily ...

Fig. 1. (A–C) Features of the bone marrow (BM) aspirate and biopsy showing hemophagocytic lymphohistiocytosis (HLH) and cytomegalovirus (CMV) staining. (A, B) BM aspirate showing histiocytic hyperplasia and prominent hemophagocytosis by activated histiocytes. Arrowheads indicate features suggestive of ongoing endocytosis (Wright-Giemsa stain, ×1,000). (C) BM core biopsy result showing positive ...

HeLa 229 cells were infected with genital tract strains of Chlamydia trachomatis. After incubation for varying times the infected cells were fixed and stained with the fluorescent DNA binding dyes Hoechst 33258 or DAPI for comparison with conventional Giemsa stain. Fluorochrome-treated preparations were examined by incident ultraviolet fluorescence microscopy and the Giemsa-stained preparations...

OBJECTIVES This study was executed to investigate the efficacy of oral therapy and preliminary leishmanicidal mechanism of sertraline, a selective serotonin reuptake inhibitor widely used for the management of depression, against Leishmania donovani, a causative agent of visceral leishmaniasis (VL). METHODS The effect of the drug was determined for: (i) direct promastigote killing by inhibiti...

OBJECTIVES The main objective of this study was to assess antral brush cytology as an alternate approach for the diagnosis of H. pylori infection as compared to histopathology. METHODS 75 cases with diagnosis of antral gastritis underwent endoscopic antral biopsy as well as antral brushing cytology was included irrespective of age and sex. Cytological slides were stained with Giemsa stain & b...