Development of an easy, inexpensive, fast and selective spectrophotometric method for the determination Folic Acid (FA) by its reaction with 4-nitro aniline reagent, good sensitivity, as oxidative coupling in presence Potassium permanganate solution, it was found that concentrations were agreement Beer-Lambert’s law at wavelength 374 nm ranged between 1- 21 µg/ml folic acid a deviation from Bee...

In this study, novel wound dressing materials based on non-woven (NW) surfaces were developed using electrospraying (e-spraying) process. Polyester spunbond (PET SPB), polypropylene (PP and melt-blown MB) used as matrix, folic acid (FA), vitamin B9 sprayed these surfaces. The resulting NW fabrics with the same FA content investigated in terms of chemical, morphological, thermal, wettability pro...

Alteration of MHC class I molecule expression is a widespread mechanism used by tumor cells to evade T cell responses. It has long been proposed that the origin of these MHC class I-negative or -deficient tumor variants is T cell immune selection. However, there are no experimental or clinical data to substantiate this hypothesis, and this issue is currently the subject of debate. Here we repor...

A single injection of fenfluramine hydrochloride resulted in a short-term increase in striate synaptosomal conversion of tryptophan to serotonin (5-HT) in rat brain. In contrast, D- and L-amphetamine sulfate resulted in a short-term decrease of this index of 5-HT biosynthesis. None of the amphetamines studied altered the kinetics of synaptosomal uptake of L-[3-14C]-tryptophan measured in the sa...

Clusters of atoms can adopt different atomic arrangements from bulk materials. They often exhibit novel structures and properties, which provide opportunities for new types of chemical bonding and stoichiometry. Herein we report experimental and theoretical evidence that 8and 9-atom boron clusters are perfectly planar molecular wheels, with a heptaor octacoordinated central boron atom, respecti...

SERPINB9 is the only known human intracellular inhibitor of granzyme B (GrB), the effector molecule in immunity against cytomegalovirus (CMV) and in renal allograft rejection. Therefore, using specific enzyme-linked immunosorbent assays, we addressed the presence of circulating SERPINB9 during primary CMV infection, subclinical rejection, acute rejection, and uncomplicated posttransplantation c...

The cowpox virus-encoded anti-apoptotic protein cytokine response modifier A (CrmA) is a member of the serpin family that specifically inhibits the cellular proteins caspase 1, caspase 8 and granzyme B. In this study, we have used Flag- and yellow fluorescent protein (YFP)-tagged versions of CrmA to investigate the mechanisms that regulate its subcellular localization. We show that CrmA can act...