The effects of electrical stimulation of second somatosensory area(S Ⅱ)andelectroacupuncture(EA)at Huantiao(GB 30)and Yanglinquan(GB 34)points on nociceptive re-sponses of neurons in the nucleus centrum medianum(CM)i...The effects of electrical stimulation of second somatosensory area(S Ⅱ)andelectroacupuncture(EA)at Huantiao(GB 30)and Yanglinquan(GB 34)points on nociceptive re-sponses of neurons in the nucleus centrum medianum(CM)in the thalamus were respectively ob-served after topical application of bicuculline(Bic)at the motor cortex(MCtx),and the results werecompared with those obtained in the saline control group.It was found that following application ofBic either electrical stimulation of SII(n=11)or EA(n=11)yielded obvious inhibition on nocicep-tive responses of CM neurons(P【0.05),which was similar to the inhibitory effects obtained in thesaline control groups(n=11,n=10).After GABA application at MCtx electrical stimulation of SIIfailed to show inhibition on nociceptive responses in 3 CM neurons.It is indicated that GABA in MC-tx is involved in SII originating corticofugal regulation of nucleus CM in acupuncture analgesia.展开更多
Peri-infarct reorganization has been reported in stroke patients with a lesion at the cerebral cortex, corona radiata, or pons, separately. However, there have been no reports describing the patients with peri-infarct...Peri-infarct reorganization has been reported in stroke patients with a lesion at the cerebral cortex, corona radiata, or pons, separately. However, there have been no reports describing the patients with peri-infarct reorganization at multiple levels. The present study reported a patient with a middle cerebral artery infarct who showed complete paralysis of the right extremities at stroke onset. Results showed that at 3 years after stroke onset, patient＇s motor function of the affected hand appeared to have been recovered by the motor tract, which reorganized into the anterior areas of the infarcted centrum semiovale and corona radiata, as demonstrated by diffusion tensor tractography study analyzed using functional MRI activation results. This result indicates that the human brain can show extensive brain plasticity and that saving the adjacent area or penumbra around the infarct even though the lesion from multiple levels is important for functional recovery after stroke.展开更多
基金This project is supported by National Natural Science Fundation of China
文摘The effects of electrical stimulation of second somatosensory area(S Ⅱ)andelectroacupuncture(EA)at Huantiao(GB 30)and Yanglinquan(GB 34)points on nociceptive re-sponses of neurons in the nucleus centrum medianum(CM)in the thalamus were respectively ob-served after topical application of bicuculline(Bic)at the motor cortex(MCtx),and the results werecompared with those obtained in the saline control group.It was found that following application ofBic either electrical stimulation of SII(n=11)or EA(n=11)yielded obvious inhibition on nocicep-tive responses of CM neurons(P【0.05),which was similar to the inhibitory effects obtained in thesaline control groups(n=11,n=10).After GABA application at MCtx electrical stimulation of SIIfailed to show inhibition on nociceptive responses in 3 CM neurons.It is indicated that GABA in MC-tx is involved in SII originating corticofugal regulation of nucleus CM in acupuncture analgesia.
基金the National Research Foundation of Korea Grant Funded by the Korean Government, No. KRF-2008-314-E00173
文摘Peri-infarct reorganization has been reported in stroke patients with a lesion at the cerebral cortex, corona radiata, or pons, separately. However, there have been no reports describing the patients with peri-infarct reorganization at multiple levels. The present study reported a patient with a middle cerebral artery infarct who showed complete paralysis of the right extremities at stroke onset. Results showed that at 3 years after stroke onset, patient＇s motor function of the affected hand appeared to have been recovered by the motor tract, which reorganized into the anterior areas of the infarcted centrum semiovale and corona radiata, as demonstrated by diffusion tensor tractography study analyzed using functional MRI activation results. This result indicates that the human brain can show extensive brain plasticity and that saving the adjacent area or penumbra around the infarct even though the lesion from multiple levels is important for functional recovery after stroke.
