Objective To explore the relationship among regulatory emotional self-efficacy,Internet overuse and personality,in order to provide the basis for reducing the incidence of Internet overuse and formulating relevant intervention.Methods Bv cluster sampling method,a questionnaire survey was conducted among 1750 students in a university.Results There was a statistically significant difference in gender(t=5.47,P＜0.05) and grades(F=6.11,P＜ 0.05) of Internet overuse.The rate of college students' Internet overuse was 19.92％.The scores of personality of intelligence,stability,perseverance,boldness,sophistication and self-discipline in Internet overuse group were lower than the normal use group(t=1.73-6.01,P＜0.05),but the scores of dimensions of aggressiveness,suspicion,anxiety and tension were higher(t=-7.74--2.61,P＜0.05).The total scores of regulatory emotional self-efficacy were lower in Internet overuse group(t=5.538,P＜0.05).There was a significant negative correlation between the scores of Internet overuse and the scores of regulatory emotional self-efficacy(P＜0.05).The scores of Internet overuse were significant positive correlation with suspicion,anxiety and tension,but significant negative correlation with stability,excitability,perseverance,boldness and self-discipline (P＜0.05).There was a significant positive correlation between the scores of regulatory emotional self-efficacy and intelligence,stability,dimensions of aggressiveness,excitement,perseverance,boldness and self-discipline of personality,but significant negative correlation with suspicion,anxiety and tension(P＜0.05).Regulatory emotional self-efficacy played a partial mediating role in Internet overuse and personalitv traits,the rate respectively was 30.8％,16.7％,14.5％,37.3％.Conclusion There were a closely relationship among regulatory emotional self-efficacy,Internet overuse and personality.Regulatory emotional self-efficacy played a partial neliating role in Intemet overuse and personality traits.

Objective:To investigate the effects of sodium aescinate on endothelin ( ET ) and calcitonin gene -related peptide ( CGRP) contents in the gerbils with cerebral ischemia/reperfusion injury ( CI/R) . Methods:The gerbil model of CI/R was prepared by bilateral common carotid arteries ligation for 10 min followed by 2-hour reperfusion. Sodium aescinate (i. p. , 10, 20 and 40 mg· kg-1 ) was administered once a day for 3 days before the operation and once every 1 h after the operation, respectively. The levels of ET and CGRP in brain tissue homogenate were determined by a radioimmunoassay method. Results:Sodium aescinate significantly in-hibited the level of ET (28. 69-37. 03 ng·L-1) in the brain tissue of gerbils with CI/R compared with the model group (P<0. 05 or P<0. 01), while showed no evident influence on CGRP (P>0. 05). Conclusion:Sodium aescinate has obvious protective effects a-gainst CI/R in gerbils, which may be due to its inhibitory action on ET levels in brain tissue.

Objective:To evaluate the treatment effect of hemoperfusion(HP) on Henoch-Sch?nlein purpura(HSP) outcomes.Methods:PubMed, Cochrane library, Web of science, Wanfang database, CNKI and CBM database were searched from inception to February 2020.Literatures of randomized controlled trials(RCTs) that investigated the effect of HP on HSP outcomes were included.Articles screening, data extraction and quality assessment were accomplished by two investigators independently, and statistical analyses were performed by RevMan 5.3.Results:Thirteen RCTs were included with 803 cases, of which, 397 cases were in the HP group while 406 cases were in the control group.The Meta-analysis revealed the HP group had less disappearing time of hematuresis or albuminuria[ MD=-2.77, 95% CI(-3.18, -2.36), P<0.001], relieving time of abdominal pain[ MD=-1.70, 95% CI(-2.17, -1.23), P<0.001], disappearing time of hematochezia[ MD=-1.54, 95% CI(-1.68, -1.40), P<0.001], and the length of hospital stay[ MD=-3.23, 95% CI(-3.60, -2.87), P<0.001] than the control group. Conclusion:The HP could shorten disappearing time of hematuresis or albuminuria, relieving time of abdominal pain, disappearing time of hematochezia, and the length of hospital stay of HSP.

To study the genic and non-genic regulation of 50 Hz 0.6 mT pulsed electromagnenic fields (PEMF) on rat calvarial osteoblasts (ROB) differentiation.ROBs were achieved by enzyme digestion, and treated with 50 Hz 0.6 mT PEMFs for 1.5 hours after subculture. The alkaline phosphatase (ALP) activity, mRNA transcription of ALP, Runx2 and OSX and protein expression of Runx2 and OSX were detected at 0, 3, 6, 9 and 12 hours after PEMF treatment.The ALP activity at 3 hours after treatment was significantly higher than that in the control(<0.01), while the mRNA transcription of ALP began to increase at 6 hours after treatment. The mRNA transcription of Runx2 increased immediately after treatment and regressed at 6 hours, then increased again. The protein expression of it corresponded but with a little lag. The mRNA transcription of OSX also raised instantly after treatment, then returned to the level of control at 6 hours, and lower than control at 12 hours significantly. The protein expression of it also corresponded but with a bit delay.There are genic regulation for the protein expression of Runx2 and OSX, and non-genic regulation for the ALP activity on the process of 50 Hz 0.6 mT PEMFs prompts ROBs differentiation.
Alkaline Phosphatase ; metabolism ; radiation effects ; Animals ; Cell Differentiation ; genetics ; radiation effects ; Cells, Cultured ; Core Binding Factor Alpha 1 Subunit ; metabolism ; radiation effects ; Electromagnetic Fields ; Osteoblasts ; chemistry ; radiation effects ; Osteogenesis ; genetics ; radiation effects ; Rats ; Transcription Factors ; metabolism ; radiation effects

Myxomas are the most frequent, cardiac benign cardiac tumors which often present with stroke caused by tumorous orthrombotic emboli. The treatment of embolic stroke due to cardiac myxoma is still a clinical and technical challenge. A 61-year-old man who had an embolic stroke in the left middle cerebral artery was admitted to the Third Poeple′s Hospital of Huizhou. The initial National Institutes of Health Stroke Scale (NIHSS) score was 16. He received endovascular thrombectomy after intravenous recombinant tissue plasminogen activator (rt-PA) one hour after stroke onset. No intracranial hemorrhage developed. Pathological study of embolus showed a myxoma. A cardiac mass was found in the left atrium and removed surgically three weeks after stroke. Pathological study of the tumor showed a myxoma. At the one-month follow-up after excision of myxoma, the NIHSS score was 1 and the modified Rankin scale score was 0. No recurrence of embolism occurred after surgical resection. Endovascular thrombectomy after intravenous rt-PA (bridging therapy) for embolic stroke due to cardiac myxoma is safe and effective, and early resection of atrial myxoma can effectively avoid recurrence of cerebral infarction.