Poly(ADP-ribose) synthetase (PARS) activation: a pathway of cellular oxidant injury PARS is a protein-modifying and nucleotidepolymerizing enzyme that is abundantly present in the nucleus [l]. Its activation results in the cleavage of NAD' into ADP-ribose and nicotinamide. In turn, PARS covalently attaches ADPribose to various proteins, including nuclear proteins, histones and an automodificati...

Investigation of Technical Efficiency and Economic Value Some Production, Reproductive, Survival Growth Traits Holstein Cows in Pars Agriculture Industry Ardabil Province

Uptake of L-proline, hydroxy-L-proline and 5-oxo-L-proline by luminal-membrane vesicles isolated either from whole cortex or from pars convoluta or pars recta of proximal tubules was studied by a spectrophotometric method. Uptake of L-proline and hydroxy-L-proline by vesicles from whole cortex was mediated by both Na+dependent and Na+-independent, but electrogenic, processes, whereas transport ...

X-band dual-polarization phased-array weather radars (X-PARs) have been used in South China extensively. Eliminating the attenuation and system bias of radar data is key to utilizing advantage X-PAR networks. In this paper, disdrometer raindrop-size distribution (DSD) measurements are calculate polarimetric variables analyze characteristics precipitation attenuation. Furthermore, based on netwo...

Pars plana vitrectomy for acute infectious endophthalmitis can be challenging due to severe inflammation in the anterior chamber creating significant media opacity. We describe a surgical technique combining limbal based vitrectomy and pars plana vitrectomy to manage acute infectious endophthalmitis. Limbal based vitrectomy facilitates removal of anterior chamber fibrin and inflammatory membran...

OBJECTIVE The optimal treatment modality for traumatic spondylolisthesis of the axis is still a controversial issue. Many conservative, posterior and anterior fixation techniques have been used to treat these injuries. The C2 pars (isthmus) was used as a novel screw anchor point in upper cervical spine injuries. The direct C2 pars screws are also used to fixate the posterior and anterior parts ...

Organization and segregation of replicated chromosomes are essential processes during cell division in all organisms. Similar to eukaryotes, bacteria possess centromere-like DNA sequences (parS) that cluster at the origin of replication and the structural maintenance of chromosomes (SMC) complexes for faithful chromosome segregation. In Bacillus subtilis, parS sites are bound by the partitionin...

We report a case with compression myelopathy due to proliferative changes around the C2 pars defects without instability. A 69-year-old man presented with progressive clumsy hands and spastic gait. Plain radiographs showed bilateral spondylolysis (pars defects) at C2 and fusion between C2 and C3 spinous processes. Dynamic views revealed mobility through the pars defects, but there was no appare...

The protease-activated receptor (PAR) is the family of G protein-coupled, seven transmembrane domain receptors, currently consisting of four members, PARs 1-4. The activation of PARs occurs by proteolytic unmasking of the N-terminal cryptic receptor-activating tethered ligand. In the past decade since the cloning of PAR-1, physiological roles that PARs play have been gradually understood and ar...