Objectives To compare the efficiency and clearance of single dose low molecular weight heparin(LMWH) as anticoagulant in hemodiafiltration and hemodialysis.Methods Twenty-two patients were enrolled in the study.A single injection of LMWH(Nadroparin calcium 7500ICUAXa) was given before hemodiafiltration and hemodialysis respectively.The anti-factor-Xa activity and the activated partial thromboplastin time(APTT) in plasma were assayed during the treatment,and the dialyzer coagulation was observed.The changes of urea and serum creatinine were measured before and after the treatment.Results The anti-factor-Xa activity of LMWH during hemodiafiltration was lower than that during hemodialysis.However,there was no significant difference in APTT between the two groups.Conclusions A single bolus injection of Nadroparin provides a simple and effective anticoagulation regimen for hemodiafiltration lasting up to four hours.

Objective To investigate the effects of ischemic pre- and postconditioning on cerebral glycogen synthase kinase-3 beta (GSK-3β) activity in a rat model of global cerebral ischemia-reperfusion (I/R).Methods Forty male Wistar rats weighing 200-230 g were randomly allocated into 4 groups (n =10 each) : Ⅰ group sham operation (group S); Ⅱ group I/R; Ⅲ group ischemic preconditioning (group IPR) and Ⅳ group ischemic postconditioning (group IPO). The animals were anesthetized with intraperitoneal 10% chloral hydrate 0.4 ml/100 g. Global cerebral ischemia was induced by four-vessel-occlusion in group Ⅱ , Ⅲ and Ⅳ. Bilateral vertebral arteries were cauterized and bilateral carotid arteries were occluded for 10 min. In group IPR cerebral ischemia was preceded by 3 cycles of 10 s ischemia followed by 30 s reperfusion. The group IPO received 3 cycles of 30 s reperfusion followed by 10 s ischemia at the end of 10 min cerebral ischemia. The animals were killed 2 days later. The brains were immediately removed for determination of neuronal apoptosis in the cortex (by TUNEL), the infarct size (by TTC), p-GSK-3β activity (by spectrum assay) and the expression of Bcl-2, Bax and Caspase-3 (by SP). Linear correlation of p-GSK-3β activity with the number of apoptotic neurons in the cortex and cerebral infarct size was analyzed. Results Cerebral I/R significantly increased the number of apoptotic neurons in the cortex and infarct size, decreased p-GSK-3β activity, down-regulated Bcl-2 expression and up-regulated Bax and Caspase-3 expression in group I/R as compared with group S. Ischemic pre- and postconditioning significantly attenuated these cerebral I/R-induced changes. The p-GSK-3β activity was negatively correlated with the number of apoptotic neurons in the cortex and cerebral infarct size. Conclusion Ischemic pre- and postconditioning reduces cerebral I/R injury through inhibiting the activity of GSK-3β.

Objective To study the effects of serum of the Zhuartgguqiang jin tablets on the proliferation and osteogenic differentiation of bone marrow stromal stem cells (BMSCs) of aged rats.Methods The BMSCs were obtained from male SD rats of 18 months.The cell surface markers CD34,CD31,CD29 were detected by flow cytometry.The proliferation of BMSCs treated by different concentration of medicated serum (2.5％,5％,10％) at 24,48,72hours was detected by CCK-8 method.The BMSCs were divided into 4 groups,which were osteogenic induction group,the Chinese medicated osteogenic induction group,Chinese medicine group,the blank group.After the BMSCs were cultured for 7 days,alkaline phosphatase (ALP) vitality was detected.After the BMSCs were cultured for 14 days,the BMSCs were stained by alizarin red,the mRNA of ALP and osteocalcin(OC) was detected.Results The expressionof CD29 was positive,and the expression of CD31 and CD34 were negative.2.5％,5％ of the medicated serum could promote cell proliferation.The ALP vitality of osteogenic induction group[202.76 ± 15.44(U/gprot)],the Chinese medicated osteogenic induction group [240.48 ± 18.55 (U/gprot)],Chinese medicine group [178.87 ± 17.29 (U/gprot)]were significantly higher than that of blank group [111.24 ± 20.71 (U/gprot)] (t =22.50,7.985,3.535,all P ＜0.01).The ALP activity of Chinese medicated osteogenic induction group was higher than that of osteogenic induction group (t =3.103,P ＜ 0.05).The ALP gene relative OD value of osteogenic induction group (0.40 ± 0.20) and Chinese medicated osteogenic induction group (0.60 ± 0.06) were higher than the blank group (0.09 ± 0.03) (t =2.372,9.547,all P ＜0.01).The ALP gene expression of Chinese medicated osteogenic induction group was obviously higher than that of the osteogenic induction group(P ＜0.05).The OC gene relative OD value of osteogenic induction group(0.58 ± 0.09) and Chinese medicated osteogenic induction group(0.76 ± 0.11) were higher than the blank group(0.41 ± 0.02) (P ＜ 0.05,P ＜ 0.01).The OC gene expression of Chinese medicated osteogenic inductiongroup was obviously higher than that of the osteogenic induction group(t =2.673,P ＜ 0.05).Conclusion Medicated serum of Zhuangguqiangjin tablets can promote the proliferation and osteogenic differentiation of BMSCs of aged rats,which may be the mechanism of prevention senile osteoporosis.

Objective: Coronavirus disease-2019 (COVID-19) pandemic-related psychological symptoms can lead to smartphone addiction (SPA) risk and other behavioral disorders, thus impacting individuals’ mental health and well-being. The present study aims to propose a mediation model to investigate the association between emotional intelligence (EI) and SPA, and the mediating role of future anxiety (FA) during the post-COVID-19 era. Methods: An online questionnaire including the Emotional Intelligence Scale, the Dark Future Scale, and the Smartphone Addiction Scale among university students from China, was conducted between September 14 and November 22, 2022. Finally, 1,154 valid questionnaires were collected. The reliability and confirmatory factor analysis results showed that all three scales had good reliability and validity. Results: Structural Equation Model demonstrated that EI significantly and negatively influenced SPA (β=0.211, p<0.001), university students’ FA significantly and positively effected SPA (β=0.315, p<0.001), EI significantly predicted SPA in university students, and FA partially mediated the association between EI and SPA. The mediation effect of FA was 0.110, which accounted for 34.27% of the total effect. Bootstrap results furthermore tested the rigor of the mediating effect. Conclusion These findings broaden our understanding regarding the relationship between EI and SPA and the mediating role of FA, providing new sights for educators on how to reduce the risk of SPA when confronting the ongoing and possible future pandemics.

Objective: Traumatic experiences and stressful life events have crippling outcomes on individuals’ psychiatric disorders and are also frequently comorbid with addictive behaviors. This study aims to propose a mediation model to examine the association between coronavirus disease-2019 (COVID-19)-related post-traumatic stress disorder (PTSD) and social media addiction (SMA) among university students, and the mediating role of fear of missing out (FoMO). Methods: A cross-sectional study with 856 university students (mean age 19.2 years; 67.9% female) was conducted in China. The COVID-19-related PTSD scale, the FoMO scale, and the Bergen Social Media Addiction Scale were used, in addition to an online questionnaire addressing participants’ sociodemographic information. Descriptive statistics and correlations were conducted with SPSS 21.0. The Structural Equation Model (SEM) with AMOS 21.0 was performed to assess the hypothesized mediation mode. The bootstrap with the 95% confidence interval (CI) was computed to test the significance of the mediating effect. Results: SEM demonstrated that COVID-19-related PTSD symptoms significantly and negatively influenced SMA (β=0.247, p<0.001), FoMO significantly and positively affected university students’ SMA (β=0.341, p<0.001), and FoMO partially mediated the association between COVID-19-related PTSD symptoms and SMA. The mediation effect of FoMO was 0.176, with bootstrapping 95% CI=0.123, 0.235. Conclusion The main effects of COVID-19-related PTSD symptoms and FoMO on SMA among university students were identified, providing intervention strategies for mental health professionals on how to reduce the risk of SMA when confronting future traumatic events and public health crises.

Objective: Traumatic experiences and stressful life events have crippling outcomes on individuals’ psychiatric disorders and are also frequently comorbid with addictive behaviors. This study aims to propose a mediation model to examine the association between coronavirus disease-2019 (COVID-19)-related post-traumatic stress disorder (PTSD) and social media addiction (SMA) among university students, and the mediating role of fear of missing out (FoMO). Methods: A cross-sectional study with 856 university students (mean age 19.2 years; 67.9% female) was conducted in China. The COVID-19-related PTSD scale, the FoMO scale, and the Bergen Social Media Addiction Scale were used, in addition to an online questionnaire addressing participants’ sociodemographic information. Descriptive statistics and correlations were conducted with SPSS 21.0. The Structural Equation Model (SEM) with AMOS 21.0 was performed to assess the hypothesized mediation mode. The bootstrap with the 95% confidence interval (CI) was computed to test the significance of the mediating effect. Results: SEM demonstrated that COVID-19-related PTSD symptoms significantly and negatively influenced SMA (β=0.247, p<0.001), FoMO significantly and positively affected university students’ SMA (β=0.341, p<0.001), and FoMO partially mediated the association between COVID-19-related PTSD symptoms and SMA. The mediation effect of FoMO was 0.176, with bootstrapping 95% CI=0.123, 0.235. Conclusion The main effects of COVID-19-related PTSD symptoms and FoMO on SMA among university students were identified, providing intervention strategies for mental health professionals on how to reduce the risk of SMA when confronting future traumatic events and public health crises.

Objective: Traumatic experiences and stressful life events have crippling outcomes on individuals’ psychiatric disorders and are also frequently comorbid with addictive behaviors. This study aims to propose a mediation model to examine the association between coronavirus disease-2019 (COVID-19)-related post-traumatic stress disorder (PTSD) and social media addiction (SMA) among university students, and the mediating role of fear of missing out (FoMO). Methods: A cross-sectional study with 856 university students (mean age 19.2 years; 67.9% female) was conducted in China. The COVID-19-related PTSD scale, the FoMO scale, and the Bergen Social Media Addiction Scale were used, in addition to an online questionnaire addressing participants’ sociodemographic information. Descriptive statistics and correlations were conducted with SPSS 21.0. The Structural Equation Model (SEM) with AMOS 21.0 was performed to assess the hypothesized mediation mode. The bootstrap with the 95% confidence interval (CI) was computed to test the significance of the mediating effect. Results: SEM demonstrated that COVID-19-related PTSD symptoms significantly and negatively influenced SMA (β=0.247, p<0.001), FoMO significantly and positively affected university students’ SMA (β=0.341, p<0.001), and FoMO partially mediated the association between COVID-19-related PTSD symptoms and SMA. The mediation effect of FoMO was 0.176, with bootstrapping 95% CI=0.123, 0.235. Conclusion The main effects of COVID-19-related PTSD symptoms and FoMO on SMA among university students were identified, providing intervention strategies for mental health professionals on how to reduce the risk of SMA when confronting future traumatic events and public health crises.

Objective: Traumatic experiences and stressful life events have crippling outcomes on individuals’ psychiatric disorders and are also frequently comorbid with addictive behaviors. This study aims to propose a mediation model to examine the association between coronavirus disease-2019 (COVID-19)-related post-traumatic stress disorder (PTSD) and social media addiction (SMA) among university students, and the mediating role of fear of missing out (FoMO). Methods: A cross-sectional study with 856 university students (mean age 19.2 years; 67.9% female) was conducted in China. The COVID-19-related PTSD scale, the FoMO scale, and the Bergen Social Media Addiction Scale were used, in addition to an online questionnaire addressing participants’ sociodemographic information. Descriptive statistics and correlations were conducted with SPSS 21.0. The Structural Equation Model (SEM) with AMOS 21.0 was performed to assess the hypothesized mediation mode. The bootstrap with the 95% confidence interval (CI) was computed to test the significance of the mediating effect. Results: SEM demonstrated that COVID-19-related PTSD symptoms significantly and negatively influenced SMA (β=0.247, p<0.001), FoMO significantly and positively affected university students’ SMA (β=0.341, p<0.001), and FoMO partially mediated the association between COVID-19-related PTSD symptoms and SMA. The mediation effect of FoMO was 0.176, with bootstrapping 95% CI=0.123, 0.235. Conclusion The main effects of COVID-19-related PTSD symptoms and FoMO on SMA among university students were identified, providing intervention strategies for mental health professionals on how to reduce the risk of SMA when confronting future traumatic events and public health crises.

Objective:To evaluate the efficacy of specific immunotherapy (SIT) with standardized dermatophagoides pteronyssinus extract for allergic rhinitis (AR)accompanied with asthma.Method:One hundred and fifty-five patients(40 AR with asthma, AR & asthma) in accordance with the inclusion criteria of SIT, were allocated to receive standardized Dermatophagoides pteronyssinus extract (SIT group, n=89) or medical treatment(control group, n=66). AR with or without asthma was observed separately. Symptom and medicine scores, quality of life were recorded and analyzed before and after 1 year treatment. Side effects were registered. Subjective evaluation of symptoms was made by the patients.Result:Rhinitis and asthma symptom scores, medicine scores and quality of life were greatly improved in SIT group of AR & asthma after 1 year, which were not significant changed in control group except for medicine scores. The subjective evaluation of symptoms was also significantly improved in SIT group. In patients of AR without asthma, the symptom scores, medicine scores and quality of life were both improved. The SIT group improved greater than that of control group.Conclusion:The clinical efficacy of patients with AR & asthma was not good with simple medical treatment, while great clinical efficacy could be acquired with SIT.

Objective To evaluate the role of thioredoxin?interacting protein(TXNIP)∕oligomer?ization domain?like receptor family pyrin domain?containing 3(NLRP3)signaling pathway in renal ische?mia?reperfusion(I∕R)injury in diabetic rats. Methods Pathogen?free healthy male Sprague?Dawley rats, aged 8-12 weeks, weighing 200-220 g, were used in the study. Diabetes mellitus was induced by intrap?eritoneal injection of 1% streptozotocin 65 mg∕kg and confirmed by blood glucose≥16.7 mmol∕L 3 days lat?er. Twenty?four diabetic rats were divided into 3 groups(n=8 each)using a random number table: sham operation group(group S), renal I∕R group(group I∕R)and resveratrol(TXNIP inhibitor)group (group R). Resveratrol 10 mg∕kg was intraperitoneally injected every day for 7 consecutive days starting from 3rd week after successful establishment of the model in group R. At 4th week after successful establish?ment of the model, renal I∕R was produced by occlusion of bilateral renal pedicles for 25 min followed by reperfusion in anesthetized rats in group R. The animals were sacrificed at 48 h of reperfusion, and renal specimens were obtained for microscopic examination of pathologic changes and for measurement of malondi?aldehyde(MDA)content, superoxide dismutase(SOD)activity and superoxide anion scavenging capa?bility(using colorimetric method), interleukin?1beta(IL?1β)and IL?18 contents(by enzyme?linked immunosorbent assay), cell apoptosis(using TUNEL)and expression of TXNIP, NLRP3 and caspase?1 in renal tissues(using Western blot). Blood samples were obtained from the left ventricle for determination of serum urea nitrogen(BUN)and creatinine(Cr)concentrations. Results Compared with group S, the serum Cr concentration and apoptosis index were significantly increased, superoxide anion scavenging capability in renal tissues was decreased, and the expression of TXNIP, NLRP3 and caspase?1 was up?reg?ulated in I∕R and R groups, and the serum BUN concentration and contents of MDA, IL?1β and IL?18 in renal tissues were increased, the SOD activity was decreased(P<0.05), and the pathological changes of renal tissues were aggravated in group I∕R. Compared with group I∕R, the serum BUN and Cr concentra?tions were significantly decreased, the contents of MDA, IL?1β and IL?18 and apoptosis index were de?creased, the SOD activity and superoxide anion scavenging capability were increased, the expression of TXNIP, NLRP3 and caspase?1 was down?regulated(P<0.05), and the pathological changes of renal tis?sues were significantly attenuated in group R. Conclusion The pathophysiological mechanism of renal I∕R injury is associated with the activation of TXNIP∕NLRP3 signaling pathway in diabetic rats.