The functional significance of water channels in wheat (Triticum aestivum L.) root membranes was assessed using light scattering to measure vesicle shrinking in response to osmotic gradients rapidly imposed in a stopped flow apparatus. Vesicles were obtained from both a plasma membrane fraction and a plasma membrane-depleted endomembrane fraction including tonoplast vesicles. Osmotic water perm...

Title of Document: MODEL DEVELOPMENT AND VALIDATION OF PALLADIUM-BASED MEMBRANES FOR HYDROGEN SEPARATION IN PEM FUEL CELL SYSTEMS Atul Bhargav, Doctor of Philosophy, 2010 Directed By: Dr. Gregory S. Jackson, Associate Professor, Department of Mechanical Engineering Selective Pd-based membranes can extract near pure H2 from hydrocarbon reformate gases in liquid-fueled standalone proton exchange ...

BACKGROUND The extract of Platycodon grandiflorum has been reported to have effective spermicidal activity. This study was designed to evaluate the spermicidal and contraceptive activity, as well as the safety, of Platycodin D (PD), a major saponin in Platycodon grandiflorum. METHODS Using the computer-aided sperm analysis (CASA) test criteria, the sperm-immobilizing activity of PD was studie...

INTRODUCTION A growing body of evidence from animal models and cell culture studies indicate an important role of a local regulatory complement system (CS) in peritoneal injury during peritoneal dialysis (PD). We investigated the expression of the local regulatory CS (reflected by CD46,CD55,CD59) in the peritoneal tissue of patients with different membrane function characteristics. PATIENTS A...

After Alzheimer disease, Parkinson disease (PD) is considered the most common neurodegenerative disease. Its prevalence is the same in all area but it is common in males than females. From every 100 persons who are above 60 years old, one of them has PD. Also 5-10% of patients are less than 40 years old. This progressive neuroinflammation disease isn’t fatal. In 60% of cases is with depre...

Prompt removal of misfolded membrane proteins and misassembled membrane protein complexes is essential for membrane homeostasis. However, the elimination of these toxic proteins from the hydrophobic membrane environment has high energetic barriers. Transmembrane FtsH is the only known ATP-dependent protease responsible for this task, unlike other well-studied soluble ATP-dependent proteases. Th...

Abstract Background The programmed cell death-1 (PD-1) receptor and its ligands PD-L1 PD-L2 are immune checkpoints that suppress anti-cancer immunity. Typically, cancer cells express the PD-Ls bind PD-1 on cells, inhibiting their activity. Recently, expression has also been found in cells. Here, we analysed functions of thyroid (TC). Methods was evaluated by immunohistochemistry human TC sample...

Peritoneal dialysis (PD) uses the peritoneal membrane as a semi-permeable membrane for solute transfer and ultrafiltration. The properties of this membrane are important determinants for selecting the optimal treatment regimen but vary among individuals as well as within the same individual over time (for review, see Coester et al. [1]). As such, evaluation of the peritoneal membrane characteri...

Parkinson’s disease (PD) is an incurable neurodegenerative disease, which afflicts nearly 4 million people worldwide. The hallmark symptom of PD is the formation of Lewy bodies containing aggregated, phosphorylated, and membrane phospholipid associated α-synuclein. The molecular determinants for α-synuclein aggregation and membrane association are still unknown. Past studies suggest that alanin...

Although fuel cell (FC) has been regarded as promising “green” power generator, the Pt-based catalysts in FC hampered their further development for its high cost and scarcity. Direct methanol (DMFC) another kind of proton exchange membrane (PEMFC) manifested that Pd also performs a certain activity oxidation reaction (MOR). To better know mechanism MOR, we present DFT study on first step MOR Pd...