Excess activation and expression of large-conductance Ca^2＋-activated K^＋ channels（BKCa channels） may be an important mechanism for delayed neuronal death after cerebral ischemia/reperfusion injury. Electroacupunc...Excess activation and expression of large-conductance Ca^2＋-activated K^＋ channels（BKCa channels） may be an important mechanism for delayed neuronal death after cerebral ischemia/reperfusion injury. Electroacupuncture can regulate BKCa channels after cerebral ischemia/reperfusion injury, but the precise mechanism remains unclear. In this study, we established a rat model of cerebral ischemia/reperfusion injury. Model rats received electroacupuncture of 1 m A and 2 Hz at Shuigou（GV26） for 10 minutes, once every 12 hours for a total of six times in 72 hours. We found that in cerebral ischemia/reperfusion injury rats, ischemic changes in the cerebral cortex were mitigated after electroacupuncture. Moreover, BKCa channel protein and m RNA expression were reduced in the cerebral cortex and neurological function noticeably improved. These changes did not occur after electroacupuncture at a non-acupoint（5 mm lateral to the left side of Shuigou）. Thus, our findings indicate that electroacupuncture at Shuigou improves neurological function in rats following cerebral ischemia/reperfusion injury, and may be associated with down-regulation of BKCa channel protein and m RNA expression. Additionally, our results suggest that the Shuigou acupoint has functional specificity.展开更多
Congenital mirror movements retard typical hand functions, but no definite therapeutic modality is available to treat such movements. We report an 8-year-old boy with severe mirror movements of both hands. His mirror ...Congenital mirror movements retard typical hand functions, but no definite therapeutic modality is available to treat such movements. We report an 8-year-old boy with severe mirror movements of both hands. His mirror movements were assessed using the Woods and Teuber grading scale and his fine motor skills were also evaluated by the Purdue Pegboard Test. A 2-week regimen of repetitive transcranial magnetic stimulation produced markedly diminished mirror movement symptoms and increased the fine motor skills of both hands. Two weeks after the completion of the regimen, mirror movement grades had improved from grade 4 to 1 in both hands and the Purdue Pegboard Test results of the right and left hands also improved from 12 to 14 or 13. These improvements were maintained for 1 month after the 2-week repetitive transcranial magnetic stimulation regimen. After 18 months, the mirror movement grade was maintained and the Purdue Pegboard test score had improved to 15 for the right hand while the left hand score was maintained at 13. This occurred without any additional repetitive transcranial magnetic stimulation or other treatment. These findings suggest that repetitive transcranial magnetic stimulation for this patient had a therapeutic and long-term effect on mirror movements.展开更多
The adipocytokine,apelin-13,is an abundantly expressed peptide in the nervous system.Apelin-13 protects the brain against ischemia/reperfusion injury and attenuates traumatic brain injury by suppressing autophagy.Howe...The adipocytokine,apelin-13,is an abundantly expressed peptide in the nervous system.Apelin-13 protects the brain against ischemia/reperfusion injury and attenuates traumatic brain injury by suppressing autophagy.However,secondary apelin-13 effects on traumatic brain injury-induced neural cell death and blood-brain barrier integrity are still not clear.Here,we found that apelin-13 significantly decreases cerebral water content,mitigates blood-brain barrier destruction,reduces aquaporin-4 expression,diminishes caspase-3 and Bax expression in the cerebral cortex and hippocampus,and reduces apoptosis.These results show that apelin-13 attenuates secondary injury after traumatic brain injury and exerts a neuroprotective effect.展开更多
基金supported by the National Natural Science Foundation of China,No.81173339,81303020the Program for Changjiang Scholars and Innovative Research Team in University of Chinathe Key Project of the Natural Science Foundation of Tianjin of China,No.11JCZDJC19800
文摘Excess activation and expression of large-conductance Ca^2＋-activated K^＋ channels（BKCa channels） may be an important mechanism for delayed neuronal death after cerebral ischemia/reperfusion injury. Electroacupuncture can regulate BKCa channels after cerebral ischemia/reperfusion injury, but the precise mechanism remains unclear. In this study, we established a rat model of cerebral ischemia/reperfusion injury. Model rats received electroacupuncture of 1 m A and 2 Hz at Shuigou（GV26） for 10 minutes, once every 12 hours for a total of six times in 72 hours. We found that in cerebral ischemia/reperfusion injury rats, ischemic changes in the cerebral cortex were mitigated after electroacupuncture. Moreover, BKCa channel protein and m RNA expression were reduced in the cerebral cortex and neurological function noticeably improved. These changes did not occur after electroacupuncture at a non-acupoint（5 mm lateral to the left side of Shuigou）. Thus, our findings indicate that electroacupuncture at Shuigou improves neurological function in rats following cerebral ischemia/reperfusion injury, and may be associated with down-regulation of BKCa channel protein and m RNA expression. Additionally, our results suggest that the Shuigou acupoint has functional specificity.
基金supported by Yeungnam University research grants in 2010
文摘Congenital mirror movements retard typical hand functions, but no definite therapeutic modality is available to treat such movements. We report an 8-year-old boy with severe mirror movements of both hands. His mirror movements were assessed using the Woods and Teuber grading scale and his fine motor skills were also evaluated by the Purdue Pegboard Test. A 2-week regimen of repetitive transcranial magnetic stimulation produced markedly diminished mirror movement symptoms and increased the fine motor skills of both hands. Two weeks after the completion of the regimen, mirror movement grades had improved from grade 4 to 1 in both hands and the Purdue Pegboard Test results of the right and left hands also improved from 12 to 14 or 13. These improvements were maintained for 1 month after the 2-week repetitive transcranial magnetic stimulation regimen. After 18 months, the mirror movement grade was maintained and the Purdue Pegboard test score had improved to 15 for the right hand while the left hand score was maintained at 13. This occurred without any additional repetitive transcranial magnetic stimulation or other treatment. These findings suggest that repetitive transcranial magnetic stimulation for this patient had a therapeutic and long-term effect on mirror movements.
基金supported by the National Natural Science Foundation of China,No.81302612the Natural Science Foundation of Jiangsu Province of China,No.12KJB310018a grant from the Student Innovation Training Program of China,No.201410313023Z
文摘The adipocytokine,apelin-13,is an abundantly expressed peptide in the nervous system.Apelin-13 protects the brain against ischemia/reperfusion injury and attenuates traumatic brain injury by suppressing autophagy.However,secondary apelin-13 effects on traumatic brain injury-induced neural cell death and blood-brain barrier integrity are still not clear.Here,we found that apelin-13 significantly decreases cerebral water content,mitigates blood-brain barrier destruction,reduces aquaporin-4 expression,diminishes caspase-3 and Bax expression in the cerebral cortex and hippocampus,and reduces apoptosis.These results show that apelin-13 attenuates secondary injury after traumatic brain injury and exerts a neuroprotective effect.
