Point selection along the course of meridians is the basic principle for acupuncture prescription and selection of points. In application, there are three categories of point selection: selection of local and adjacent...Point selection along the course of meridians is the basic principle for acupuncture prescription and selection of points. In application, there are three categories of point selection: selection of local and adjacent points; selection of distant points, and selection of symptomatic points. Based on the展开更多
Open anterior dislocation of the hip is a very rare injury, especially in adults. It is a hyperabduction, external rotation and extension injury. Its combination with open posterior dislocation of the elbow has not be...Open anterior dislocation of the hip is a very rare injury, especially in adults. It is a hyperabduction, external rotation and extension injury. Its combination with open posterior dislocation of the elbow has not been de- scribed in English language-based medical literature. Pri- mary resuscitation, debridement, urgent reduction of dislocation, and adequate antibiotic support resulted ingood clinical outcome in our patient. At 18 months follow- up, no signs of avascular necrosis of the femoral head or infection were observed.展开更多
G protein-coupled receptor kinase 2 （GRK2） is an important serine/threonine-kinase regulating different membrane receptors and intraceUular proteins. Attenuation of Drosophila Gprk2 in embryos or adult flies induced...G protein-coupled receptor kinase 2 （GRK2） is an important serine/threonine-kinase regulating different membrane receptors and intraceUular proteins. Attenuation of Drosophila Gprk2 in embryos or adult flies induced a defective differentiation of somatic muscles, loss of fibers, and a flightless phenotype. In vertebrates, GRK2 hemizygous mice contained less but more hypertrophied skeletal muscle fibers than wild-type littermates. In C2C12 myoblasts, overexpression of a GRK2 kinase-deficient mutant （K220R） caused precocious differentiation of ceUs into immature myotubes, which were wider in size and contained more fused nuclei, while GRK2 overexpression blunted differentiation. Moreover, p38MAPK and Akt pathways were activated at an earlier stage and to a greater extent in K220R-expressing cells or upon kinase downregulation, while the activation of both kinases was impaired in GRK2-overexpressing cells. The impaired differentiation and fewer fusion events promoted by enhanced GRK2 levels were recapitulated by a p38MAPK mutant, which was able to mimic the inhibitory phosphorylation of p38MAPK by GRK2, whereas the blunted differentiation observed in GRK2-expressing clones was rescued in the presence of a constitutively active upstream stimulator of the p38MAPK pathway. These results suggest that balanced GRK2 function is necessary for a timely and complete myogenic process.展开更多
文摘Point selection along the course of meridians is the basic principle for acupuncture prescription and selection of points. In application, there are three categories of point selection: selection of local and adjacent points; selection of distant points, and selection of symptomatic points. Based on the
文摘Open anterior dislocation of the hip is a very rare injury, especially in adults. It is a hyperabduction, external rotation and extension injury. Its combination with open posterior dislocation of the elbow has not been de- scribed in English language-based medical literature. Pri- mary resuscitation, debridement, urgent reduction of dislocation, and adequate antibiotic support resulted ingood clinical outcome in our patient. At 18 months follow- up, no signs of avascular necrosis of the femoral head or infection were observed.
文摘G protein-coupled receptor kinase 2 （GRK2） is an important serine/threonine-kinase regulating different membrane receptors and intraceUular proteins. Attenuation of Drosophila Gprk2 in embryos or adult flies induced a defective differentiation of somatic muscles, loss of fibers, and a flightless phenotype. In vertebrates, GRK2 hemizygous mice contained less but more hypertrophied skeletal muscle fibers than wild-type littermates. In C2C12 myoblasts, overexpression of a GRK2 kinase-deficient mutant （K220R） caused precocious differentiation of ceUs into immature myotubes, which were wider in size and contained more fused nuclei, while GRK2 overexpression blunted differentiation. Moreover, p38MAPK and Akt pathways were activated at an earlier stage and to a greater extent in K220R-expressing cells or upon kinase downregulation, while the activation of both kinases was impaired in GRK2-overexpressing cells. The impaired differentiation and fewer fusion events promoted by enhanced GRK2 levels were recapitulated by a p38MAPK mutant, which was able to mimic the inhibitory phosphorylation of p38MAPK by GRK2, whereas the blunted differentiation observed in GRK2-expressing clones was rescued in the presence of a constitutively active upstream stimulator of the p38MAPK pathway. These results suggest that balanced GRK2 function is necessary for a timely and complete myogenic process.
