Objective:To observe the effect of high-frequency repetitive transcranial magnetic stimulation (rTMS) at different frequencies on cognitive impairment due to high-altitude hypoxia.Methods:Sixty officers and soldiers displaying cognitive impairment in a hypoxic high-altitude environment were randomly divided into 15Hz, 20Hz and 25Hz groups, each of 20. They were given rTMS at those frequencies for 30 days. Before the stimulation and after 15 and 30 days, event-related potentials, latencies of mismatched negativity (MMN) and P300 signals were recorded. The participants′ cognition was also evaluated using the Montreal Cognitive Assessment Scale (MoCA). Correlation between the electrophysiological indexes and the MoCA scores was computed.Results:After 15 days, all had shorter MMN latencies, higher total MoCA scores and better memory scores. The only significant difference among the three groups was in the average memory scores. After 15 days, MMN latency was significantly negatively correlated with the memory scores in all three groups ( r=0.44 to -0.54). Conclusions:rTMS at frequencies above 15Hz can effectively relieve cognitive impairment, especially memory dysfunction, resulting from high-altitude hypoxia.

Objective:To observe the effect of high-frequency repetitive transcranial magnetic stimulation (rTMS) at different frequencies on cognitive impairment due to high-altitude hypoxia.Methods:Sixty officers and soldiers displaying cognitive impairment in a hypoxic high-altitude environment were randomly divided into 15Hz, 20Hz and 25Hz groups, each of 20. They were given rTMS at those frequencies for 30 days. Before the stimulation and after 15 and 30 days, event-related potentials, latencies of mismatched negativity (MMN) and P300 signals were recorded. The participants′ cognition was also evaluated using the Montreal Cognitive Assessment Scale (MoCA). Correlation between the electrophysiological indexes and the MoCA scores was computed.Results:After 15 days, all had shorter MMN latencies, higher total MoCA scores and better memory scores. The only significant difference among the three groups was in the average memory scores. After 15 days, MMN latency was significantly negatively correlated with the memory scores in all three groups ( r=0.44 to -0.54). Conclusions:rTMS at frequencies above 15Hz can effectively relieve cognitive impairment, especially memory dysfunction, resulting from high-altitude hypoxia.

ObjectiveTo explore the role of aryl hydrocarbon receptor/suppressor of cytokine signaling 2/nuclear transcription factor-κB (AHR/SOCS2/NF-κB) signaling in the reduction of spinal cord injury (SCI) inflammation with every-other-day fasting (EODF). MethodsA total of 36 healthy male Sprague-Dawley rats were randomly divided into sham group (n = 12), model group (n = 12) and EODF group (n = 12). The latter two groups were established C₅ spinal cord hemi-clamp model. The EODF group received EODF, namely fasting and feeding per 24 hours (water free), for two weeks after operation. They were assessed with Grooming Test before operation, and one, seven and 14 days after operationt, respectively. Pathological injury of spinal cord was observed with HE staining 14 days after operation, while the expression of AHR, SOCS2 and NF-κB proteins were detected with Western blotting, and the mRNA of AHR, SOCS2, inhibitor α of NF-κB (IκBα), NF-κB and tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) were measured with reverse transcription real-time quantitative polymerase chain reaction. ResultsCompared with the sham group, the Grooming Test score decreased in the other two groups (P < 0.05), and cavity, edema and structural disorder appeared in the spinal cord. Compared with the model group, the pathology of EODF group improved, and the Grooming Test score increased (P < 0.05). The mRNA and protein expression of AHR and SOCS2 increased (P < 0.05), the mRNA and protein expression of NF-κB decreased (P < 0.05), the mRNA expression of IκBα increased (P < 0.05), and the mRNA expression of TNF-α and IL-6 decreased (P < 0.05). ConclusionEODF may promote the recovery of motor function of forelimb in rats with SCI, and relieve damage and inflammation, which may associate with the activation of AHR/SOCS2/NF-κB signaling pathway.

Objective The article described the design and building of a virtual reality technology-based rehabilitation system for patients with cognitive deficits, including overall idea, design and structure of the system, the key technology, such as formal description of the training data, man-machine interactive control, controlling simulation of the training process and virtual environment module development to achieve system implementation. The system is suitable for our country and military. It will create a new way for the cognitive rehabilitation and help to promote the application of virtual reality technology in rehabilitation

BACKGROUND:Intensity-time (I/T) curve examination is a monitoring technology used for diagnosis of nerve damage,muscle disease and prognostic evaluation using current stimulation and qualitative or quantitative analysis.It also has significance to the diagnosis of lumbar disc herniation (LDH).Whether it can be used in LDH prognostic evaluation is poorly understood.OBJECTIVE:To explore the effectiveness of I/T curve in diagnosis and prognostic evaluation of LDH.METHODS:I/T curves of 113 LDH patients were measured by CX-3 electrodiagnostic equipment,and the results were compared with their unaffected sides and analyzed after physiotherapy.A total of 253 curves were measured,including 107 biceps femoris,101 gastrocnemius and 45 tibialis anterior muscle curves.All patients were sequential treated by traction,medium frequency,ultrashort wave,electric acupuncture as well as infrared radiation following I/T diagnosis,once a day,10 days for a course,with 10 days interval in 3 courses,I/T curves were performed after 3 courses.The therapeutic effect was evaluated by using I/T results combined with clinical symptom and physical signs.RESULTS AND CONCLUSION:The first estimated percentage by I/T curved line were 36.36% (controlled by normal nerve),62.85% (controlled by part of the denervated),0.79% (controlled by the completely denervated) and 63.64% (controlled by total abnormal nerve).After the physiotherapy,the effectiveness of the complete recovery was 92.86% by the normal nerve as well as 58.82% by the abnormal nerve.Above all,the practical value could be concluded from the diagnosis,evaluation and effectiveness of LDH used by I/T curve line.The therapeutic effectiveness controlled by the normal nerve is much better than that controlled by the abnormal.