lactic acid bacteria which are  used  as  probiotics  have  ability to  modulate  immune responses and modify immune mechanisms. it has also been indicated that some strains of this family can affect the immune responses against solid tumors. in the present work, we proposed to study the effects of oral administration of l.cacesi ssp casei on the nk cells cytotoxicity and also production of cyt...

Tin anode slime is a by-product of the tin electrolytic refining process. This study investigated route to separate Sn, Sb, Bi, and Cu from after leaching with hydrochloric acid. In solvent extraction process tributyl phosphate, Sb Sn were extracted into organic phase. Bi unextracted remained in liquid stripping experiment, stripped separated HCl HNO3. aqueous phase also chemical precipitation ...

a simple and mild one-pot three-component reaction for the preparation 1,4-dihydropyridines has been developed from various aldehyde substrates, 1,3-dicarbonyl compounds (dimedone) and ammonium acetate (hantzsch method) in the presence of a catalytic amount of phospho sulfonic acid (psa) as an efficient and heterogeneous solid acid in etoh at room temperature. preparation of psa is straightforw...

In this study, we developed and validated a High-Performance Liquid Chromatography-Tandem Mass Spectrometry (HPLC-MS/MS) method to determine bile acid in mouse serum. The serum samples were analysed after solid-phase extraction. The analytes were separated on a Diamonsil C18 column with a mobile phase of methanol and water containing 10 mmol/L ammonium acetate and 0.005% formic acid (70:30) at ...

This study demonstrates that boronic acid-containing polymers coated onto solid support function as synthetic mitogens for mouse lymphocytes. The polymer was synthesized by radical copolymerization of 3-acrylamidophenylboronic acid with dimethylacrylamide (poly(AAPBA-DMAA)). The boronic acid in the trigonal form in the copolymer activated lymphocytes, probably by crosslinkage to glycoprotein mo...

the one-pot, multi-component synthesis of 4,4′-(arylmethylene)bis(1h-pyrazol-5-ols) by tandem knoevenagel-michael reaction of phenylhydrazine, ethyl acetoacetate and aldehydes in the presence of silica-bonded n-propylpiperazine sulfamic acid (sbppsa) as a recyclable solid acid catalyst was reported. sbppsa showed much the same efficiency when used in consecutive reaction runs.