zno and tio2 nanoparticles wereimpregnated with merbromin dye and used as modified photocatalysts for degradation of phenol. dye-modified zno and tio2 showed significantly higher photocatalytic activity than neat zno and tio2 under visible light illumination. moreover, the prepared dye-modified zno showed superior photocatalytic efficiency in degradation of phenol compared to the dye-modified t...

the thioredoxin system, comprising thioredoxin (trx), thioredoxin reductase (trxr) and nadph, is one of the major cellular antioxidant systems, implicated in a large and growing number of biological functions. trx acts as an oxidoreductase via a highly conserved dithiol/disulfide motif located in the active site ( trp-cys-gly-pro- cys-lys-). different factors are involved in the regulation of t...

for a long time, scientists have tried to describe disorders just by genetic or environmental factors. however, the role of epigenetics in human diseases has been considered from a half of century ago. in the last decade, this subject has attracted many interests, especially in complicated disorders such as behavior plasticity, memory, cancer, autoimmune disease, and addiction as well as neurod...

background: pentoxifylline might have a role in the suppression of inflammatory cytokines in non-alcoholic fatty liver disease (nafld).the aim of study  was  to evaluate the effect of pentoxifylline on liver function tests in non-diabetic subjects with nafld. materials and method: this clinical trial was performed in 120 nafld patients. they were divided to two groups by balance block randomiza...

background: titanium (ti) implants are commonly coated with hydroxyapatite (ha). however, ha has some disadvantages such as brittleness, low tensile strength and fracture toughness. it is desirable to combine the excellent mechanical properties of zro2 and the chemical inertness of al2o3 with respect to the purpose of this project which was coating ti implants with ha-zro2-al2o3 to modify the s...

Activated carbon filters are widely used to remove gaseous pollutants in order guarantee a healthy living environment. The standard method for evaluating the adsorption performance of is conducted at ~100 ppm. Although this accelerates test and avoids high requirements device, it still far from contaminant concentration indoor environment, adsorbents practical application may show different cap...

pegylation is a well-established technique utilized to overcome the problems related to the therapeutic applications of peptides and proteins. reasons for the pegylation of these biological macromolecules include reducing immunogenicity, proteolytic degradation and rapid clearance from blood circulation. octreotide is an octapeptide analogue of naturally-occurred somatostatin. this peptide has ...

OBJECTIVE To evaluate the costs, benefits and cost-effectiveness of complex workplace dietary interventions, involving nutrition education and system-level dietary modification, from the perspective of healthcare providers and employers. DESIGN Single-study economic evaluation of a cluster-controlled trial (Food Choice at Work (FCW) study) with 1-year follow-up. SETTING Four multinational m...

Background and AimsInflammatory bowel diseases (IBD), encompassing Crohn’s disease (CD) ulcerative colitis (UC), are chronic disabling disorders. Prospective disease-modification trials to prevent progression eagerly awaited. However, is not clearly defined. The objective of the Selecting End PoInts foR Disease-ModIfication Trials (SPIRIT) initiative was achieve international expert consensus o...