Objective To explore the effect of MECT on learning memory in depressed rats and its synaptic plasticity mechanism. Methods Fifty SD rats were randomly divided into 5 groups( n =10): MECT (received ECT with intraperitoneal propofol), ECT (received ECT only), propofol (received intraperitoneal propofol), depression, and control. The treatments were given daily for 7 consecutive days. All rats underwent open field and Morris water maze test. The SYP protein and mRNA expressions in rat hippocampus were detected using immunochemistry and RT-PCR, respectively. Results After treatment, the open field scores were much higher in MECT and ECT groups than in propofol and depression groups ( P <0.05); the learning memory was worse in ECT group than in MECT, propofol and depression groups ( P <0.05); the expressions of SYP protein and mRNA was higher in MECT and ECT groups than in propofol and depression groups ( P <0.05), the expressions of SYP protein and mRNA were lower in MECT group than ECT group ( P <0.05). Conclusions Propofol can improve learning memory in ECT-treated depressed rats through attenuation of ECT-induced expression of SYP in rat hippocampus.

Objective To investigate the effects of different doses of propofol on expression of synaptophysin (SYP) mRNA and protein in the hippocampus of mentally depressed rats after electroconvulsive therapy (ECT) .Methods Fifty adult male SD rats weighing 200-250 g were randomly divided into 5 groups (n = 10 each): group Ⅰ control (group C); group D mental depression (group D) ; group Ⅲ , Ⅳ , Ⅴ propofol 90, 110, 130 mg/kg + ECT (group M_1, M_2, M_3). Mental depression was induced by isolation and chronic unpredictable mild stress (CUMS) in group Ⅱ-Ⅴ . Group M_1 , M_2 and M_3 received intraperitoneal (IP) propofol 90, 110 and 130 mg/kg respectively + ECT once a day ×7 consecutive days while group C and D received IP normal saline instead of propofol. The rats underwent open field test and sucrose liquid consumption test the day before and after mental depression was established and one day after treatment. The rats were killed after the last test for determination of expression of SYP mRNA (by RT-PCR) and protein (by immuno-histochemistry) in the hippocampus. Results The ambulation scores, rearing scores, grooming time and sucrose consumption percentage were significantly decreased while the center,grid detention time (CDT) was significantly increased in group Ⅱ-Ⅴ as compared with control group indicating mental depression was successfully induced. The ambulation scores, rearing scores, grooming time, sucrose consumption percentage, SYP mRNA and protein expression were significantly increased while CDT was significantly decreased after treatment in group M_1 and M_2 as compared with group D indicating that propofol 90 or 110 mg/kg combined with ECT was effective for the treatment of mental depression.Conclusion Propofol 90 or 110 mg/kg combined with ECT is effective in treating mental depression while proprofol 130 mg/kg combined with ECT is not. Excessive inhibition of SYP expression in hippocampus by large dose of propofol may explain the mechanism.`

Objective To evaluate the correlation between diffusion tensor imaging(DTI)measurements,fiber tracking(FT)and the clinical symptoms in patients with cervical spondylotic myelopathy.Methods According to the Japanese orthopaedics association score(JOA),104 patients with cervical spondylopathy were divided into 4 groups:mild in 31 patients with 13-16 scores,moderate in 27 with 9-12 scores,severe in 25 with 5-8 scores,and serious in 21 with 0-4 scores.According to the lesion signal characters,all patients were divided into 3 groups:Group A with normal signal in both T1 WI and T2WI in 33 patients,Group B with normal signal in T1WI but high signal in T2WI in 30 patients,and Group C with low signal in T1 WI and high signal in T2WI in 41 patients.Apparent diffusion coefficient (ADC),fractional anisotropy(FA),λ1,λ2,λ3 were measured in the spinal cord at the serious pressed section,and fiber tractography was performed.The Spearman correlation analyses was used to correlate each of the DTI measurement with JOA score.Group difference was tested with one-way ANOVA method.Results High quality of DTI was acquired in all patients.The FA values in the mild,moderate,severe,and serious groups were respectively 0.69 ±0.13,0.58 ±0.03,0.46 ±0.08,and 0.37 ±0.11 and significant difference was found in different groups(F =100.59,P ＜ 0.05)and positively correlated with JOA scores (r =0.883,P ＜ 0.05).There was no statistical significance between JOA scores and ADC,λ1,λ2,λ3(r=0.232,0.217,0.113,0.127,P ＞0.05).The FA values in group A,B,and C were respectively 0.67 ±0.33,0.51 ±0.21,0.38 ±0.03,and significant difference was found among different groups(F =50.05,P ＜ 0.05).Decrease of JOA score and high signal in T2 companied with decrease of FA value.Decrease of FA values was found associated with increase of fiber bundle damage.The ADC,λ2,λ3 but not λ1 were significantly different among the JOA groups and the group A,B,and C.Conclusions The FA values are positively correlated with clinical symptoms.Decrease of FA values is found associated with increase of fiber bundle damage.DTI can show the severity and extent of damage of spinal cord in patients with cervical spondylotic myelopathy.

AIM To speculate the hypoglycemic mechanism for rats with type 2 diabetes by exploring the therapeutic effects of leaf aqueous extract from Cyclocarya paliurus on liver insulin receptor (InsR) and insulin receptor substrate 2 (IRS-2).METHODS The diabetic rat model was established through intraperitoneal injection of streptozotocin and fed with high-fat diet.The moleled rats were equally assigned into the control group and leaf aqueous extract from Cyclocarya paliurus group (extract group).After the test extract was orally administrated for four weeks,body weight,urine output,food intake,water intake and fasting blood-glucose (FBG) were measured,and the levels of serum insulin,InsR and IRS-2 mRNA in liver tissue were investigated in rats.RESULTS Compared with the control group,the extract group showed a reduction in urine output,food intake,water intake,FBG and insulin levels.Meanwhile,the rats' body weights in extract group were presented a trend to increase.The gene expressions of InsR and IRS-2 in liver tissue were up-regulated.Moreover,the insulin sensitivity was improved.CONCLUSION The leaf aqueous extract from Cyclocarya paliurus can reduce FBS,improve insulin sensitivity,which may be associated with the increase of InsR and IRS-2 gene expression in liver tissue.

Objective To observe the condition changes in patients with chronic hepatitis B (CHB) following medication withdraw of nucleoside/nucleotide analogues (NAs) treatment and to analyze the factors related to disease relapse.Methods Eighty-five CHB patients who discontinued medication of nucleoside/nucleotide analogues for antiviral therapy in Nanjing Second Municipal Hospital from January 2002 to December 2017 were enrolled in the study, among whom 22 cases met the withdrawal criteria (standard withdrawal group ) and 63 cases did not meet the withdraw criteria ( non-standard withdrawal group).The correlation of condition changes (abnormal liver function, positive rate of HBV DNA, hepatic failure with the drug withdrawal , the course of medication, serological transformation of HBeAg during drug withdrawal, HBsAg level, and liver cirrhosis during drug administration was analyzed.Results In standard withdraw group, the medication lasted for ＞3 years, only 1 case had HBV DNA positive conversion , abnormal ALT and TBil, and liver failure.In non-standard withdraw group, 50 cases (79.4%) had HBV DNA positive conversion, 36 (57.1%) had abnormal ALT, 25 ( 39.7%) had abnormal TBil and 14 (22.2%) had liver failure.There were 19 cases with HBsAg ＞1 000 IU/mL and 3 cases with HBsAg ≤1 000 IU/mL, and 1 case with HBsAg＞1 000 IU/mL (5.3%) had HBV DNA positive conversion , ALT, TBil abnormality and liver failure.In non-standard withdraw group, there were 52 cases with HBsAg ＞1000 IU/mL, among whom 45 cases (86.5%) had positive HBV DNA conversion , 31 (59.6%) had ALT abnormalities, 25 (48.1%) had TBil abnormalities, and 13 (25.0%) had liver failure; there were 11 patients with HBsAg ≤1 000 IU/mL, among whom 6 cases (54.5%) had HBV DNA positive conversion , 5 (45.4%) had ALT abnormalities, and no TBil abnormalities or liver failure occurred.There were 5 cases of liver cirrhosis in the standard withdraw group , only 1 case had HBV DNA positive conversion , ALT, TBil abnormality and liver failure.None of the 17 patients with non-cirrhosis had HBV DNA positive conversion , ALT, TBil abnormality and liver failure.There were 29 patients with liver cirrhosis in non-standard withdraw group showed positive HBV DNA conversion , 28 (96.6%) had ALT abnormalities, 22 (75.8%) had TBil abnormalities, and 11 (37.9%) had liver failure; among 34 non-cirrhosis patients, 21 (61.8%) had positive HBV DNA conversion, 8 (23.5%) had ALT abnormalities, 3 (8.8%) had TBil abnormalities, and 2 (5.9%) had liver failure.According to the standard discontinuation , 12 patients (16.7%) had positive HBV DNA transformation after HBeAg serological conversion , and no ALT abnormality, TBil abnormality and liver failure occurred.In non-standard withdraw group, only 17 cases without HBeAg serological conversion , 10 cases (58.8%) had positive HBV DNA conversion , 5 cases (29.4%) had ALT abnormalities, 2 cases (11.8%) had TBil abnormalities and liver failure did not occur.Conclusion CHB patients with medication of NAs should be discontinued according to the withdrawal criteria .and the course of medication, the immune index and the liver cirrhosis should be taken into account.

Rheumatoid arthritis （RA） is a common autoimmune disease. Excessive hyperplasia of synovial tissues and osteoclastic bone absorption are two main causes of bone and joint destruction in RA. Synovial fibroblasts in RA （RA-FLS） are important cells in the synovial tissues of RA. The changes in their growth characteristics and inhibition of apoptosis lead to the proliferation of synovial tissues， stimulate inflammatory reactions， damage joint structure， and result in joint dysfunction. Therefore， regulating abnormal proliferation and promoting apoptosis of RA-FLS can interfere with the pathogenesis of RA. At present， there are many studies on the effect of Chinese medicine and its monomer components on the excessive proliferation and apoptosis of RA-FLS. The present study reviewed the effect of RA-FLS in RA and the intervention of Chinese medicinal monomers and compounds by regulating RA-FLS. The results showed that monomer components mainly included terpenoids， flavonoids， alkaloids， and anthraquinones. Despite different types， they can effectively intervene in RA through different approaches. For instance， they can prevent bone and cartilage injury by inhibiting the secretion of inflammatory cytokines and inhibiting the generation of chondrocytes and osteoclasts. They can achieve apoptosis by up-regulating the pro-apoptotic genes B-cell lymphoma 2 （Bcl-2）， Bcl-2-associated X protein （Bax）， and cysteinyl aspartate-specific protease （Caspase） in the Fas/FasL， nuclear factor-κB （NF-κB）， Janus kinase （JAK）/signal transducer and activator of transcription protein （STAT）， and p38 mitogen-activated protein kinase （p38 MAPK） signaling pathways， and down-regulating the anti-apoptotic genes Bcl-xl and Bcl-2. They can also inhibit the proliferation of RA-FLS by inhibiting the protein expression of microtubule-associated protein 1 light chain 3Ⅱ（LC3Ⅱ）/LC3Ⅰ and Beclin-1. Although their molecular mechanisms of action and targets are different， they all exert corresponding roles. The above research results provide a scientific basis for elucidating the multi-component and multi-target characteristics of Chinese medicine in the treatment of RA.

Objective:To compare the repair effects of three kinds of treatment methods included synovial mesenchymal stem cells(SMSCs),platelet rich plasma(PRP)and the combination of them with knee joint cavity injection on cartilage injury of rabbit.Methods:A total of 24 New Zealand rabbits were selected to establish a cartilage injury model of knee joint by using surgery in knee joint of them.The rabbits with cartilage injury model were divided into four groups using a random number table method,which included blank group,single SMSCs with joint cavity injection group(SMSCs group),PRP with joint cavity injection group(PRP group)and the combination of SMSCs and PRP with joint cavity injection group(SMSCs+PRP group),with 6 rabbits in each group.The synovium of four groups of rabbits were scraped off their joints to conduct in vitro culture of SMSCs,as well as the morphological observation and identification of SMSCs.The venous bloods of rabbits were extracted to prepare PRP by centrifugation.The contents of PRP,platelet and growth factor in blood were compared.The SMSCs and PRP were injected into the knee joint cavity of three groups of rabbits with model.After 2,4 and 6 weeks of injection treatment,the repair statuses of cartilages at defection area of different groups were evaluated according to cartilage repair scoring table of International Association for Cartilage Repair(ICRS).Results:The primary synovial cells of rabbit knee joint synovium were initially round in shape after isolation,but almost all of them were spindle shaped after passage.The positive detection rates of SMSCs surface antigen CD73,CD90 and CD105 of 4 group were respectively 100%,99.22%and 99.99%.The CD45 detection was 0.5%,which indicated that they possessed the property of stem cell.The platelet count of 4 groups showed that the platelet concentration in PRP was approximate 6 times of that in whole blood.The concentrations of platelet derived growth factor(PDGF),transforming growth factor-β(TGF-β)and vascular endothelial growth factor(VEGF)were respectively(569.15±57.48)ng/mL,(633.56±63.90)ng/mL and(1 243.55±106.04)ng/mL in PRP,which were approximately 5 times,6 times and 7 times of that in whole blood,respectively.After 2 weeks of injection treatment for joint cavity,there was no significant statistical difference in the scores of cartilage repair among 4 groups(P>0.05).At 4 and 6 weeks of injection treatment,the morphological and histological score of cartilage repair of the SMSCs+PRP group were significantly higher than those of the blank group,and the differences were significant(t4 week=6.35,9.15,t6 week=8.16,8.60,P<0.05),respectively.Conclusion:The repair effect of SMSCs combined with PRP on cartilage injury of rabbit is significantly better than that of single PRP and single SMSCs,respectively,and all of them are better than those without treatment.SMSCs combined with PRP can significantly improve the effect of self-repair of cartilage injury.

Objective To investigate the different expressions of Ki-67 between diffuse large B cell lymphoma (DLBCL)and the reactive hyperplasia of lymphnode (RH),germinal center B cells (GCB)and non-GCB types,and to explore the clinical significance of Ki-67.Methods Samples from 60 DLBCL patients served as observation group,while the other 20 tissue samples from patients with lymphoid reactive hyperplasia as control group.The difference of Ki-67 expres-sions between GCB and non-GCB were compared and the relationships between Ki-67 expression and DLBCL,the international prognostic index (IPI),short-term efficacy and prognosis were analyzed. Results The average expression rate of Ki-67 was (69.17±14.73)%and (40.50±14.95)% in observation and control groups respectively ,and the difference was significant (t= 7 .5 0 9 ,P<0.0001),and it was (59.29±14.92)%and (71.96±13.39)%in GCB and non-GCB groups (t= 3.019,P= 0.0038)and (65.29±15.17)% and (74.23±12.70)% in IPI<2 and IPI≥2 groups (t= 2.422,P= 0.0186),respectively.Conclusion The abnormal expression of Ki-67 is closely associated with clinical stages,index of IPI,types,short-term effect and prognosis in DLB-CL,which plays an important role in the diagnosis,treatment and prognosis of DLBCL.

Objective To investigate the different expressions of Ki-67 between diffuse large B cell lymphoma (DLBCL)and the reactive hyperplasia of lymphnode (RH),germinal center B cells (GCB)and non-GCB types,and to explore the clinical significance of Ki-67.Methods Samples from 60 DLBCL patients served as observation group,while the other 20 tissue samples from patients with lymphoid reactive hyperplasia as control group.The difference of Ki-67 expres-sions between GCB and non-GCB were compared and the relationships between Ki-67 expression and DLBCL,the international prognostic index (IPI),short-term efficacy and prognosis were analyzed. Results The average expression rate of Ki-67 was (69.17±14.73)%and (40.50±14.95)% in observation and control groups respectively ,and the difference was significant (t= 7 .5 0 9 ,P<0.0001),and it was (59.29±14.92)%and (71.96±13.39)%in GCB and non-GCB groups (t= 3.019,P= 0.0038)and (65.29±15.17)% and (74.23±12.70)% in IPI<2 and IPI≥2 groups (t= 2.422,P= 0.0186),respectively.Conclusion The abnormal expression of Ki-67 is closely associated with clinical stages,index of IPI,types,short-term effect and prognosis in DLB-CL,which plays an important role in the diagnosis,treatment and prognosis of DLBCL.

Objective: To investigate the prevalence of witnessing domestic violence,and to explore the relationship between witness domestic violence in childhood and college students’ injury and violence behaviors. Methods: In October 2018, self-made questionnaire on “Health and Risky Behaviors among University Students in Anhui Province” was conducted among 4 034 college students from 4 universities in Hefei. Multivariate Logistic regression models (control of confounding factors) were used to explore the impact of childhood witnessing domestic violence on college students’ injury and violence. Results: Among 4 034 college students,the prevalence of witnessing domestic emotional violence,mild physical violence and severe physical violence in childhood was 27.6%,22.4%,10.7%,respectively. Univariate analysis showed that students with experiences of witness domestic emotional violence,mild physical violence and severe physical violence had higher rates of self-injury,physical,emotional,and sexual violence compared to those without domestic violence witness(P<0.05). Multivariate Logistic regression analysis showed that witnessing domestic severe physical violence,emotional violence in childhood associated positively with self-harm (OR=1.53,95%CI=1.05-2.23; OR=2.15,95%CI=1.51-3.04) and emotional violence (OR=1.65,95%CI=1.16-2.35; OR=2.57,95%CI=1.87-3.53). Witnessing domestic severe physical violence showed positive association with physical violence (OR=4.99,95%CI=2.58-9.62) and sexual violence (OR=8.68,95%CI=3.30-22.81) among college students (P<0.05). Conclusion The experiences of witness domestic violence can increases the risk of college student’s injury and violence behaviors,especially witness domestic severe physical violence.