Less than 30% of multidrug-resistant tuberculosis (MDR-TB) patients are currently diagnosed, due to laboratory constraints. Molecular diagnostics enable rapid and simplified diagnosis. Newer-version line probe assays have not been evaluated against the WHO-endorsed Hain GenoType MTBDRplus (referred to as Hain version 1 [V1]) for the rapid detection of rifampin (RIF) and isoniazid (INH) resistan...

Background/aim: Matrix metalloproteinases (MMPs) play an important role in the evaluation of many cancer types; however, detection usually presents a challenge. Further assays for better understanding fundamental roles MMPs pathophysiology are still needed. We aimed to use activatable probe scanning acoustic microscopy (SAM) evaluate acoustically if can aid visualization effects vitro MMP activ...

The objective of the study was to evaluate the cytotoxic effects of aqueous extract of Cucumis melo fruit on human prostate cancer cell line (PC-3) using MTT and neutral red assays. The crude aqueous extract of C. melo was prepared by cold maceration method, filtered, concentrated and tested on PC-3 cell line. Dose-dependent cytotoxic activities were exhibited on human prostate carcinoma PC...

The objective of the study was to evaluate thecytotoxic effects of aqueous fruit extract of Cucumis melo in human prostate cancer cell line (PC-3) using MTTand neutral red assays. The crude aqueous extract of C.melo was prepared by cold maceration method, filtered,concentrated and tested on PC-3 cell line. Dose-dependent cytotoxic activitieswere exhibited by human prostate carcinoma PC-3 cell l...

BACKGROUND Many groups are actively investigating how the epigenetic state relates to environmental exposures and development of disease, including cancer. There are myriad choices for capturing and measuring the epigenetic state of a tissue, ranging from assessing the total methyl-CpG content to array-based platforms that simultaneously probe hundreds of thousands of CpG loci. There is an emer...

Cancer classification using DNA copy number data is an important bioinformatics problem. Effective machine learning models for this task can be useful not only for cancer diagnosis, but also for discovering novel tumor suppressor genes and oncogenes. The recent array-based assays that detect DNA copy numbers contain very large numbers of probes and thus generate data of extremely high dimension...

Several antibiotics reduced growth of bacteria without killing them when present in the range of concentrations of significance in assaying. The reduction in growth rate was linearly related to concentration of antibiotic. From this fact may be derived an equation of the form log N = A - BC where N is the concentration of bacteria at the end of the incubation period, C is the concentration of a...

Only 25% of multidrug-resistant tuberculosis (MDR-TB) cases are currently diagnosed. Line probe assays (LPAs) enable rapid drug-susceptibility testing for rifampicin (RIF) and isoniazid (INH) resistance and Mycobacterium tuberculosis detection. Genotype MTBDRplusV1 was WHO-endorsed in 2008 but newer LPAs have since been developed.This systematic review evaluated three LPAs: Hain Genotype MTBDRp...

The performance of a fiberoptic probe colorimeter (model PC800; Brinkmann Instruments, Inc., Westbury, N.Y.) for quantitating enzymatic or colorimetric assays in 96-well microtiter plates was compared with the performances of a spectrophotometer (model 240; Gilford Instrument Laboratories, Inc., Oberlin, Ohio) and a commercially available enzyme immunoassay reader (model MR590; Dynatech Laborat...

background: tumour suppressor genes such as tp53, brca1 and rad51 are involved in dna repair and their malfunctions result in genomic instability and cancer. wild type (wt) tp53 binds to brca1and rad51 in vivo and in vitro. however, mutated tp53 in tumours can interfere with wt tp53 function. we studied how mutation of tp53 in mda-mb-468 cell line could affect its binding capacity and interfere...