Reports on news of interest to MTTS Society members.

Background & Aims: Plant extracts and plant-derived compounds are valuable sources of new medicinal agents that are commonly used to treat infectious diseases. The purpose of this study was to evaluate, antiLeishmanial activity of three plant extracts on L.major promastigotes by colorimetric assay as compared to a trivalent antimonial compound (tartar emetic). Methods: Leishmania major promasti...

A comparative analysis was carried out of published methods to assess seed viability using 2,3,5-triphenyltetrazolium chloride (TTC) based assays of seed batches. The tests were carried out on seeds of barley (Hordeum vulgare cv. Optic) as a model. We established that 10% [w/v] trichloroacetic acid (TCA)/methanol is superior to the acetone and methanol-only based methods: allowing the highest r...

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The activity of the succinic dehydrogenase system was studied in Escherichia coli utilizing combined techniques of cytochemistry and electron microscopy. Organisms were incubated in a medium containing tetranitro-blue tetrazolium (TNBT) which served as an electron acceptor. Enzymatic activity, as evidenced by the deposition of aggregates of TNBT-formazan, was found associated with the site of t...

The lactate dehydrogenase isoenzyme patterns in 46 extraocular eye muscle samples removed at surgery for squint were determined by acrylamide-gel electrophoresis and reduction of NAD coupled with formazan reaction. Muscle type subunits predominated in the isoenzymes of the medial and lateral rectus muscles of emmetropic and hypermetropic eyes, whereas heart type subunits predominated in those o...

Today, the antiviral activity of oxide nanomaterials can be used in fight against viral disease COVID-19. It is thought that Ag nanoparticles may bind to surface glycoprotein virus and interfere with virus’s interaction epithelial cells, inhibit reproduction by releasing silver ions cell. The viruses’ inhibition RNA (ribonucleic acid) DNA (deoxyribonucleic genomes nanocomposites action was pres...