Objective To understand the clinical significance of detection of tumor necrosis factor alpha (TNF -α),neuron specific enolization enzyme (NSE)and S100B levels in children with hand -foot -mouth disease (HFMD)complicated with encephalitis,and to provide research data for children with HFMD complicated with encephalitis.Methods 157 children with HFMD were divided into 79 cases of HFMD complicated encephalitis group and 78 cases of HFMD group according to whether there was encephalitis complications.Another 80 healthy children were chosen as control group.TNF -α,NSE and S100B protein in blood and cerebrospinal fluid of the three groups were detected by enzyme -linked immunosorbent assay.Results TNF -αlevels in blood and cerebrospinal fluid of HFMD complicated encephalitis group,HFMD group were significantly higher than those of the control group (t =8.315,6.443,4.132,6.443,all P <0.05);TNF -αlevels in blood and cerebrospinal fluid of HFMD complicated encephalitis group were significantly higher than those of HFMD group (t =4.378,3.220,all P <0.05).NSE in blood and cerebrospinal fluid of HFMD complicated encephalitis group were significantly higher than those of the control group (t =8.706,7.840,all P <0.05);NSE in blood and cerebrospinal fluid of HFMD complicated encepha-litis group were significantly higher than those of HFMD group (t =6.945,7.134,all P <0.05).S100B in blood and cerebrospinal fluid of HFMD complicated encephalitis group were significantly higher than those of the control group (t =9.443,10.031,all P <0.05);S100B in blood and cerebrospinal fluid of HFMD complicated encephalitis group were significantly higher than those of HFMD group (t =8.552,9.206,all P <0.05).TNF -α,NSE and S100B levels in blood and cerebrospinal fluid of HFMD complicated encephalitis group were positively correlated (r =0.803, 0.794,0.856,all P <0.05);TNF -αlevels in blood and cerebrospinal fluid of HFMD group was positively correla-ted (r =0.743,P <0.05).Conclusion Detection of TNF -α,NSE and S100B levels in blood and cerebrospinal fluid can assist to diagnose children with HFMD,and NSE and S100B can be used as specific indicators of HFMD complicated encephalitis.

Aim To investigate the roles of FFJ-5 in human breast cancer MCF7 cells and drug-resistant MCF7/DOX cells and to explore its mechanisms. Methods MTT assay was used to detect the effect of FFJ-5 on MCF7 and MCF7/DOX cell proliferation and sensitivity of doxorubicin in MCF7/DOX cells.West-ern blot was used to investigate the effect of FFJ-5 on expression of EGFR,p-EGFR,Akt,p-Akt,PKM2, cleaved caspase-3,cleaved PARP and P-gp.DNA lad-der analysis was performed to determine the effect of FFJ-5 on genomic DNA.RT-PCR was performed to de-tect the influence of FFJ-5 on multidrug resistance gene MDR1 mRNA levels.Results The results showed that FFJ-5 inhibited the growth of MCF7 ,inhibited the expression and activity of EGFR and Akt,and conse-quently reduced the expression of PKM2 in MCF7 cells;FFJ-5 activated caspase-3 and induced genomic DNA fragmentation;FFJ-5 also inhibited the growth of MCF7/DOX cells and enhanced the anti-tumor activity of doxorubicin in MCF7/DOX cells.Conclusion The results suggest that FFJ-5 could inhibit MCF7 cell growth and induce MCF7 cell apoptosis through inhibi-tion of EGFR-Akt-PKM2 pathway and activation of ap-optosis-related factors caspase-3 , meanwhile FFJ-5 could also reverse the resistance of MCF7/DOX.

Objective To observe the effect of preoperative stellate ganglion block (SGB)on gastrointestinal function in rats undergoing gastrointestinal and non-gastrointestinal abdominal surgery.Methods Fifty-four male SD rats,weighing (200 ± 10 )g,were randomly divided into 5 groups:control group (n =6,group C),gastrointesinal abdominal surgery group (n =12,group G), SGB+gastrointesinal abdominal surgery group (n = 12,group SG),non-gastrointestinal abdominal surgery group (n = 12,group NG),SGB+ non-gastrointestinal abdominal surgery group (n = 12, group SNG).Group C was given no treatment.Venous blood samples were taken for determination of the levels of serum NE,TNF-αand IL-6 at the time before stellate ganglion block (T1 ),the end of operation (T2 ),12 h (T3 )and 24 h after operation (T4 ).Six rats were randomly chosen from each group to test bowel propulsion rate at T3 and T4 ,then sacrificed to measure motilin (MTL)and vaso-active intestinal peptide (VIP)in antrum and proximal colon.Results Compared with T1 and group C,the serum concentrations of NE,TNF-αand IL-6 significantly increased at T2-T4 in groups G,SG, NG and SNG (P <0.05).The NE,TNF-α and IL-6 levels in group G were significantly higher than those in group SG (P <0.05),and the serum NE,TNF-αand IL-6 levels in group NG were signifi-cantly higher than those in group SNG (P <0.05).Compared with T3 and group C,the bowel pro-pulsion rate and MTL levels significantly increased at T4 in groups G,SG,NG and SNG (P <0.05). The bowel propulsion rate and MTL levels in group SG and group SNG were significantly higher than those in group G and group NG,respectively (P <0.05 ).The VIP levels significantly decreased in groups G,SG,NG and SNG than that in group C (P <0.05).The VIP levels in group SG were sig-nificantly lower than those in group G (P < 0.05 ), and the VIP levels in group SNG were significantly lower than those in group NG (P < 0.05 ).Conclusion Preoperative stellate ganglion block can premote the recovery of gastrointestinal function in rats after abdominal surgery,attenuated stress response and inflammatory reaction,and regulation of gastrointestinal hormone level may be involved in the mechanism.

Objective To explore the relationship between serum cccDNA and liver damage in the patients with chronic HBV infection.Methods Serum cccDNA,ALT of 156 patients with chronic HBV infection were measured,and pathology of liver tissue in 85 patients was detected.Results The positive rate of Serum cccDNA and ALT had no significant difference(P＞0.05).Between pathology light,medium and severe group,S0_(～1) and S_(2～4) group,G_(0～1) and G_(2～4) group the serum cccDNA mean was significantly different(P＜0.01).The positive rate of serum cccDNA was significantly different between the group of NAASC and ASC,CH,LC,HCC,and the group of ALT ≤40u/Land 40～80,80～400,≥400u/L(P＜0.01).Conclusion Serum cccDNA and liver inflammation,fibrosis and ALT had no relevance,serum cccDNA with at a low level may be non-active,but should be excluded from serious liver diseases.

BACKGROUND:In previous studies, the dehydrothermal cross-linking method was modified by the authors to improve the degradation property of colagen scaffolds. The cross-linking time was increased from 24 to 48 hours, and the cross-linking temperature increased from 105 to 115℃. OBJECTIVE:To verify the anti-degradation ability of colagen scaffolds prepared using the modified dehydrothermal cross-linking method and to obtain the optimal efficacy of the scaffolds on damaged tissue repair and regeneration. METHODS: Highly-purified type I colagen scaffolds with native triple helix structure were prepared and subjected to three different dehydrothermal cross-linking conditions: 105℃ for 24 hours, 105℃ for 48 hours and 115℃ for 24 hours. Material samples, 1 cm×1 cm, were implanted subcutaneously into the rat dorsum. The specimens were harvested at 3 days, 14 days and 42 postoperative days folowed by fixation and histological analysis using hematoxylin-eosin staining. RESULTS AND CONCLUSION:No untoward foreign body and immunological reactions were observed in any groups. In the group of 105℃ for 48 hours, the scaffold retention and degree of pore openness were better than the other two groups at 14 days after scaffold implantation (P < 0.05). These findings indirectly suggest that the anti-degradation ability of colagen scaffolds can be strengthened under certain dehydrothermal cross-linking conditions: the cross-linking time is increased from 24 to 48 hours.

OBJECTIVE To investigate the protective effect of selective 18 ku translocator protein (TSPO) ligand YL-IPA08 on corticosterone(CORT)-induced apoptosis of BV-2 cells and its potential mecha?nisms. METHODS BV-2 Cells were pretreated with selective TSPO ligand YL-IPA08 1-100 nmol · L-1 and(or) TSPO antagonist PK11195 100 nmol · L-1 for 2 h,and then co-incubated with CORT for another 24 h. The apoptosis rate was measured by flow cytometry. CCK-8 kit was used to test BV-2 cell viability. The protein expression of TSPO was determined by Western blotting. The level of allopreg?nanolone was detected by ELISA kit. RESULTS In line with positive drug-AC-5216, the cell apoptosis rate decreased in YL-IPA08 1-100 nmol · L-1 and CORT co-treatment groups(P<0.01), which was antago?nized by PK11195 100 nmol · L-1 treatment(P<0.05). Cell viability increased in YL-IPA08 100 nmol · L-1and CORT co-treatment groups (P<0.01), which was blocked by PK11195 100 nmol·L-1 treatment(P<0.01). The expression of TSPO and the level of allopregnanolone(P<0.01) were enhanced by YL-IPA08 100 nmol · L-1 pretreatment followed by CORT treatment. The enhancement of allopregnanolone level was blocked by PK11195 100 nmol·L-1 treatment(P<0.05). CONCLUSION YL-IPA08 can protect BV-2 cells from CORT induced apoptosis. The protective effect of YL-IPA08 may be conferred by the increasing level of TSPO expression and allopregnanolone.

Objective To study the distribution characteristics of deposited eggs and pathological changes in the viscera of animal infected with Schistosoma japonicum at different time. Methods New Zealand white rabbits were infected artificially with quantitative S. japonicum miracidia,then the distribution characteristics and the hatchability of schistosome eggs as well as the pathological changes of the corresponding viscera of the rabbits 42 and 60 d post?infection were observed and compared. Re?sults On the 42nd day post?infection,among all the viscera observed,the percentage of eggs deposited,the number of eggs per gram and the hatchability were the highest in the liver,while on the 60th day post?infection,the tissues and organs with the highest values of the above 3 indexes were the liver,rectum and upper section of the small intestine,respectively. From 42 day to 60 day post?infection,the liver of infected rabbits became swelling,hardening and lost elasticity,the color changed from black to dark grey,and egg nodules gradually appeared in the different sections of the small intestine,and also the mucosal hy?peremia,edema and egg nodules were seen in the colon,cecum and rectum. The lesion levels tended to be correlated with the deposition of eggs. Conclusion The amount and the density as well as the hatching rate of deposited eggs of S. japonicum in the viscera of infected rabbits at different time are different,and the lesion level in the host is correlated with the deposition of eggs.

Objective Compare the effect of thoracic and abdominal mediastinal tube placement on pain and comfort in patients with minimally invasive esophageal cancer and nursing care. Methods 108 patients with squamous cell carcinoma of the thoracic esophagus were selected from December 2016 to May 2017. The patients were divided into chest group and abdominal group according to the random number comparison table, each with 54 cases. All patients underwent minimally invasive radical resection of esophageal carcinoma. The mediastinum drainage tube was placed at different locations of the chest and abdomen after operation. The duration of intubation, total drainage volume, number of dressing change before and after extubation, degree of pain and comfort after surgery were recorded, drainage tube failure and the incidence of related complication were compared between the two groups. Results There was no significant difference in duration of intubation, total drainage volume, drainage tube failure and the incidence of related complication between Patients with mediastinal tubes placed through the chest and abdomen(P>0.05). The times of dressing change before and after extubation in the abdominal group were (2.8 ± 1.0), (1.9 ± 0.6) times, those in the chest group were (4.5 ± 1.2), (3.6 ± 1.1) times, there were significant difference between the two groups (t=7.841, 9.377, P<0.01). The NRS and VAS score at 1-4 days and extubation in the abdominal group were significantly lower than those in the chest group, the abdominal group were (3.2±1.0), (2.7±0.8), (2.3±0.7), (1.9±0.7), (1.5±0.6) points and (3.7±0.8), (3.4±1.4), (3.0± 0.7), (2.6±1.0), (2.6±1.0) points, the chest group were (3.7±1.3), (3.3±1.1), (2.8±0.8), (2.3±0.8), (2.3±0.7) points and (5.0±0.9), (4.3±1.4), (4.1±1.3), (3.3±1.2), (3.6±1.0) points, there were significant difference between the two groups (t=2.443-7.247, P<0.01 or 0.05). Conclusions Intraoperative abdominal minimally invasive radical mediastinal tube placed esophageal cancer, can significantly relieve pain and improve patient comfort, reduce the frequency of dressing change before and after extubation, not only quickly improve the rehabilitation of patients, but also can avoid the waste of medical resources, it is worthy of clinical promotion.

Extracorporeal membrane oxygenation (ECMO), a kind of life support technology that can replace lung and heart function, is widely used in critical respiratory and circulatory exhaustion. Because of the serious diseases and the use of interventional catheters, patients receiving ECMO life support are often administrated with broad-spectrum antimicrobial agents, which increase the risk of fungal infection. Fungal infection during ECMO can increase mortality. How to effectively control fungal infection is a thorny problem faced by clinicians. During the treatment of ECMO, the patient's physiological status, ECMO oxygenation membrane, circulation pipeline and other factors may change the pharmacokinetic profiles of antifungal drugs, thereby affect the clinical efficacy of drugs. This artical reviews the pharmacokinetic characteristics of antifungal drugs during ECMO support, in order to provide references for clinical antifungal treatment.