نتایج جستجو برای: pars reticulate
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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...
Lumbar spondylolysis usually occurs as a stress fracture in the pars interarticularis of the vertebra. It is a prevalent sports-related disorder and a common cause of low back pain. We encountered five athletes (4 males, 1 female) with severe low back pain. Mean age was 14.5 years. All five patients were found to have bilateral pars fracture. In all cases, staging based on the findings from com...
Dowling-Degos disease (DDD) is a rare genetic disease of the skin (reticulate pigmented anomaly), clinically characterized by flexural brown pigmented reticulate macules, comedo-like papules on the back, neck and pitted perioral or facial scars. We present the case of a 51 year-old man with macrocomedo-like lesions, pitted scars, cysts, hyperpigmented macules in his back, chest, axillae, neck, ...
FIG. 1 Linear and Whorled Nevoid Hypermelanosis: Linear and whorled hyperpigmented macules in a reticulate pattern along the Blaschko’s lines over trunk and limbs. A two-years-old boy presented with abnormal body pigmentation and body asymmetry noted since birth. A preceding vesicular eruption was absent. He was developmentally normal. Family history was insignificant. Examination revealed line...
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