Ultraviolet (UV) A penetrates deeply into the skin and induces the generation of reactive oxygen species (ROS) causing damage to fibroblasts, which leads to aging of the skin. However, the body has developed an antioxidant defence system against the harmful effects of ROS. Enzymes such as superoxide dismutase (SOD) and catalase (CAT) play critical roles on the removal of excess ROS in living or...

Four chelating matrices prepared by coupling Amberlite XAD-2 with chromotropic acid (AXAD-2-CA or 1), pyrocatechol (AXAD-2-PC or 2) and thiosalicylic acid (AXAD-2-TSA or 3) through azo spacer and impregnation of Amberlite XAD-7 with xylenol orange (AXAD-7-XO or 4) have been studied for enrichment of lead(II). All the four resins quantitatively sorb Pb(II) at pH 3.0-8.0 when the flow rate is mai...

The aim of the present study was to compare healing obtained with biomembranes with the natural healing process (sham) using biochemical and immunohistological assays. C57BL/6 mice were divided into 4 groups of 15 mice each and received different subcutaneous implants: natural latex biomembrane (NLB), denatured latex (DL), expanded polytetrafluorethylene (ePTFE), or sham. On the 2nd, 7th, and 1...

The inhibiting effect on fuel ageing of 2,4-xylenol, a phenolic antioxidant that can be produced from biomass, was investigated experimentally in the liquid phase, while its impact combustion studied gas phase. 2,4-xylenol phase has been examined n-decane and surrogate, containing 65%vol. toluene 35%vol. n-heptane. Experiments were performed PetroOxy at initial oxygen pressure 7 bar temperature...

Despite the medicinal uses of Phragmanthera capitata, Globimetula dinklagei and Tapinanthus bangwensis against memory loss, convulsions pain, their efficacy brain-dysfunction diseases inflammation models has not yet been studied. Therefore, this study aims to investigate anti-inflammatory acetylcholinesterase (AChE) inhibitory potentials crude extracts isolated natural compounds by combining in...