background and objectives: numerous procedures in biology and medicine require the counting of cells. direct enumer- ation of colony forming units (cfus) is time-consuming and dreary accurate cell counting on plates with high numbers of cfus is error prone. in this study we report a new indirect cell counting method that was developed based on the use of redsafe fluorometric assay. the usefulne...

The influence of the concentration and time of exposure to cis-diamminedichloroplatinum on the inhibition of the clonogenic growth of three N-[4-(5-nitro-2-furyl)-2-thiazolyl]formamide mouse bladder tumor cell lines was evaluated in a tumor colony assay. Drug testing was performed in the murine model, and tumor cells were removed from the animals for in vitro testing. Murine drug testing reveal...

aim and background: hepatocellular carcinoma (hcc) -an aggressive malignancy with high rate of mortality- is the third cause of cancer related death, worldwide. cisplatin is a chemotherapy drug used for treatment of hcc. however, serious side effects of drug limit the therapeutic administer dose.  nanotechnology based devices such as liposome nanoparticles are capable to overcome these drawback...

propranolol (pl), a non-selective beta-blocker, is a cardiovascular drug widely used to treat hypertension. the present study was concerned with assessing the cytogenetic effects of this drug on chinese hamster ovary (cho) cell line. mtt assay was then carried out to determine the cytotoxicity index (ic50) of the drug. the ic50 value of pl was 0.43±0.02 mm. to investigate the clastogenic effect...

the leishmaniasis is a zoonotic disease that remains a severe public health problem and its burden is increasing. by now there is no anti-leishmaniasis vaccine and as other tripanosomial disease, is treated by limited drugs. first line drug includes pentavalent antimony such as sodium stibogluconat and meglumine antimoniate that use of these drugs is limited due to side effects, long term treat...

We applied a homogeneous reactant-labeled fluorescent immunoassay to the measurement of therapeutic drug concentrations in human serum, exemplified here by gentarnicin. A derivative of umbelliferyl-3-galactoside was coupled covalently to the drug and this conjugate was found to be nonfluorescent under assay conditions. The drug/dye conjugate was a substrate for bacterial /3-galactosidase and yi...

BACKGROUND Simple, rapid, and affordable tests are needed to detect drug resistance in Mycobacterium tuberculosis. We did a systematic review and meta-analysis to investigate the accuracy of microscopic-observation drug susceptibility (MODS) and thin layer agar (TLA) assays for rapid screening of patients at risk of drug-resistant tuberculosis. METHODS In accordance with protocols and methods...

Abstract Perampanel (PER) is the first clinically available selective antagonist of α -amino-3-hydroxy-5-methylisoxazole-4-propionic acid (AMPA) receptor approved globally for treatment epilepsy. Studies have recently underlined significant association between dose-exposure-effect-adverse events PER in patients with epilepsy, so therapeutic drug monitoring (TDM) critical clinical practices, esp...