【Objective】 To establish an enzyme-linked immunosorbent assay (ELISA) method for the determination of residual human coagulation factor Ⅺ in human prothrombin complex and validate the method. 【Methods】 Human factor Ⅺ was reacted with the capture antibody coated on the microtiter plate. After appropriate washing steps, biotinylated primary antibody was bound to the captured protein. Excess primary antibody was washed away and bound antibody was reacted with horseradish peroxidase conjugated streptavidin. TMB substrate was used for color development at 450 nm. The dilution reliability, accuracy, specificity, repeatability, intermediate precision, linearity, range and durability were verified. 【Results】 The verification results showed that the accuracy and specificity of this method met the experimental requirements, with an average recovery rate of 109.2% and RSD of 6.93%. The repeatability RSD was 6.78%, and the intermediate precision RSD was 6.75%, indicating good precision. The linear regression correlation coefficient of standard curve was 0.999 9, showing good accuracy and precision within the linear range. The durability was verified by the incubation time and the validity period of reagent kit opening. The results showed that the RSD of the incubation time change was 6.62%, indicating that the incubation time of this detection method was controlled between 28 to 32 minutes, and there was no significant impact on the results. The RSD of the detection results before and after the reagent kit was opened and stored under conditions for 7 days was 3.84%, indicating that the preservation of the reagent kit according to the conditions for 7 days after opening has no effect on the FⅪ detection results. Both indicated that the method had good durability. The dilution reliability results showed that there was a "hook" effect in the detection of FⅪ residue in human prothrombin complex, which could be solved by diluting 100 to 200 times. 【Conclusion】 This method can be used for the determination of FⅪ residues of human prothrombin complex in laboratory.

Humans ; Perineum ; Rhabdomyosarcoma/diagnosis*

Objective:To evaluate the efficacy and safety of Chinese medicinal formulae in the treatment of antimicrobial-resistant pneumonia. Method:Following article retrieval from eight databases and data extraction by two reviewers， the methodological quality of the included trials was assessed and the outcome indicators were subjected to Meta-analysis using RevMan 5.3. Result:A total of 24 randomized controlled trials （RCTs） were included， involving 1 818 cases. Meta-analysis showed that Chinese medicinal formulae combined with western routine intervention was superior to the western routine intervention in improving the overall response rate （ORR） ［relative risk （RR）=1.27， 95% confidence interval （CI） （1.21， 1.34）， P<0.000 01］， the bacterial clearance rate ［RR=1.49，95% CI （1.33， 1.66）， P<0.000 01］， and the clinical pulmonary infection score （CPIS） ［mean difference （MD）=-1.64， 95% CI （-1.87， -1.41）， P<0.000 01］. There was no significant difference in the incidence of adverse reactions ［RR=0.72， 95% CI （0.48， 1.07）， P=0.1］. The comparison with the western routine intervention also revealed that Chinese medicinal formulae better improved the ORR and CPIS. Conclusion:According to the current research results， the Chinese medicinal formulae alone or combined with western routine intervention yielded more favorable clinical outcomes than western routine intervention in the treatment of antimicrobial-resistant pneumonia， without increasing the incidence of adverse events. Due to limited quality and quantity of the included RCTs， more high-quality trials are required to verify the above conclusions.

Dental implants represent the majority of treatment strategies used to replace missing teeth. However, peri-implant diseases caused by disturbance in peri-implant microbiological balance are among the reasons for implant failure. Since the 1980s, peri-implant microorganisms have been a hot research topic in dental microbiology. The bacterial ecology between the disease and health largely differs, which directly or indirectly increases the risk of peri-implant diseases. Accordingly, the determination of the 'core microbiome' of peri-implantitis and peri-implant mucositis is a key point of recent research.
Bacteria ; Dental Implants ; Humans ; Microbiota ; Peri-Implantitis ; Stomatitis

Objective A retrospective study to determine the mid-and long-term clinical and radiological outcomes of unilateral instrumented transforaminal lumbar interbody fusion (TLIF) with bilateral decompression via unilateral paramedian incision.Methods From J ul.,2007 to J un.,2010,73 patients with single segmental lumbar stenosis were collected in this study.All of 73 patients had bilateral signs and symptoms of stenosis,and accepted the unilateral TLIF with bilateral decompression via unilateral paramedian incision.The oswestry disability index (ODI),Japanese orthopedic association scale (JOA),visual analog scale (VAS),angle of lumbar lordosis (LL) and angle of segmental lordosis (SL) were calculated and compared at pre-operation,six months after operation and last follow up.In addition,the operating time,blood loss,length of hospital stay,complications and fusion rate were also recorded.Results There were 30 males and 43 females in this study.The mean age,mean operation time,mean blood loss and mean length of hospital stay was (57.7 ± 10.1) years,(92.0 ± 26.7)minutes,(150.5 ± 130.3) mL and (12.3 ± 2.7) days,respectively.The follow up was 5 years at least and the mean follow up was (79.4 ± 11.1) months.The ODI,JOA and VAS at six months after operation and last follow up were significantly better than those at pre-operation.As for the sagittal alignment assessment,the LL and SL at six months after operation and last follow up also increased significantly compared with those at pre-operation.All of 73 patients achieved solid interbody fusion.Conclusions Unilateral instrumented TLIF with bilateral decompression via unilateral paramedian incision is an effective innovation.Compared with the traditional TLIF,it could not only reduced the surgical injury and operation cost but also achieve the same ideal effect.

Objective To analyze the related risk factors of postoperative delirium(POD)in patients with Stanford type A aortic dissection, and to guide clinical practices. Methods The clinical data of 118 cases [81 males and 37 females, average age (55.0 ± 10.3) years] with Stanford type A aortic dissection in Tianjin Chest Hospital from January 2016 to December 2017 were analysed in this study. According to whether developed delirium after surgery, the patients were divided into POD group(n=56)and Non-POD group(n=62).The preoperative,perioperative,and postoperative clinical data were collected.The univariate and multivariate Logistic regression analysis was used to investigate the risk factors of POD in patients with the Stanford type A aortic dissection. Results Single factor analysis showed that the proportions of drinking and cerebrovascular history significantly increased,the proportions of early electrolyte disorder and hypoxemia significantly increased, the levels of granulocytes / lymphocytes, circulatory time and blood volume during operation increased significantly, and the duration from onset to operation was decreased, but fibrinogen level decreased significantly in POD group than those of Non-POD group (P < 0.05). Multivariate Logistic analysis indicated that the more intraoperative consumption of blood (OR=1.733, 95% CI:1.409-2.129) and early postoperative electrolyte disorder (OR=10.500, 95% CI:2.930-37.622)were independent risk factors of POD,while the higher level of preoperative fibrinogen(OR=0.157,95% CI:0.050-0.635) and longer time from onset to surgery (OR=0.871, 95% CI:0.808-0.943) were protective factors of POD in patients with Stanford type A aortic dissection.Conclusion The early identification of risk factors of POD,and the active intervention of POD have a positive significance to reduce the occurrence of POD.

OBJECTIVETo explore the correlation between JAK/STAT signaling pathways and pathogenesis of immune thrombocytopenia(ITP).

METHODSTwenty-six newly-diagnosed ITP patients was included in this study. They all meet the clinical and hematological criteria for the diagnosis of ITP, and patients with coronary heart disease, severe refractory hypertension, diabetes or with severe liver or kidney function incompetence were ruled out. 24 healthy control without autoimmune diseases, viral infectious diseases and with normal liver and kidney functions were also included. The expressions of Jak3, p-Jak3 mRNA, Stat3, and p-Stat3 were tested and the changes in levels of IL-21 mRNA, IL-21 cell secretion after DEX intervention and AG490 blockade were measured.

RESULTSCompared with the healthy control, patients with ITP had significantly high expressions of Jak3, p-Jak3 mRNA, Stat3 and p-Stat3 protein, which significantly reduced after AG490 blocking (P<0.01). The expression of IL-21 mRNA and the secretion of IL-21 obviously decreased after DEX intervention, but increased after AG490 blocking(P<0.01).

CONCLUSIONThe pathogenesis of ITP associates with the activation of JAK/STAT signaling pathways, and IL-21-mediated JAK/STAT signaling pathways play regulatory role in ITP.

Humans ; Interleukins ; Purpura, Thrombocytopenic, Idiopathic ; STAT3 Transcription Factor ; Signal Transduction

The long-term effect of direct pulp capping and pulpotomy is closely related to the type of pulp capping materials. Various kinds of direct pulp capping materials are available, such as calcium hydroxide and mineral trioxide aggregates. Diverse new pulp capping materials have been reported recently. The excellent performance of calcium silicates has attracted much attention in previous studies. Moreover, enamel matrix derivative (Emdogain), which is capable of regeneration and remineralization, and other materials with similar capabilities have shown potential for use in pulp capping.
Aluminum Compounds ; Calcium Compounds ; Calcium Hydroxide ; Dental Pulp ; Dental Pulp Capping ; Drug Combinations ; Oxides ; Pulp Capping and Pulpectomy Agents ; Pulpotomy ; Root Canal Therapy ; Silicates

OBJECTIVETo investigate the efficacy of heated humidified high-flow nasal cannula (HHHFNC) and nasal continuous positive airway pressure (nCPAP) in preterm infants aged 26-31(+6) weeks with respiratory distress syndrome after ventilator weaning.

METHODSA total of 161 preterm infants were randomly divided into two groups after ventilator weaning: HHHFNC treatment (n=79) and nCPAP treatment (n=82). The two groups were subdivided into 26-28(+6) weeks and 29-31+6 weeks groups according to the gestational age. The treatment failure rate, reintubation rate within 7 days after extubation, incidence of complications, and mortality during hospitalization were compared between the two groups.

RESULTSThe treatment failure rate and reintubation rate showed no significant differences between the HHHFNC and nCPAP groups. The preterm infants aged 26-28(+6) weeks in the HHHFNC group had a significantly higher treatment failure rate than those in the nCPAP group (P<0.05), while the reintubation rate showed no significant difference. As for the preterm infants aged 29-31(+6) weeks, the treatment failure rate and reintubation rate showed no significant differences between the two groups. The incidence of complications and mortality showed no significant differences between the HHHFNC and nCPAP groups.

CONCLUSIONSIn preterm infants aged 29-31(+6) weeks, HHHFNC has a similar efficacy as nCPAP after ventilator weaning, while in those aged less than 29 weeks, HHHFNC should be used with great caution if selected as the first-line noninvasive respiratory support.

Catheters ; Continuous Positive Airway Pressure ; adverse effects ; Female ; Humans ; Infant, Newborn ; Infant, Premature ; Male ; Noninvasive Ventilation ; adverse effects ; methods ; Ventilator Weaning

OBJECTIVETo compare changes of hypothalamus-pituitary-adrenal axis (HPAA) in different rat models of Gan stagnation (GS), Pi deficiency (PD), Gan stagnation Pi deficiency (GSPD) syndromes, and to observe interventional effect of Chaishu Sijun Decoction (CSD, capable of soothing Gan-qi invigorating Pi) on them.

METHODSSeventy Wistar rats were divided into the normal control group (group 1), the GS group (group 2), the PD group (group 3), the GSPD group (group 4), the GS intervention group (group 5), the PD intervention group (group 6), and the GSPD intervention group (group 7) according to random digit table, 10 in each group. Rats in group 1 received no treatment. Rats in group 2 and 5 were modeled by chronic restraint method. Rats in group 3 and 6 were modeled by excess fatigue plus alimentary abstinence method. Rats in group 4 and 7 were modeled by chronic restraint, excess fatigue, and alimentary abstinence method. At the 2nd weekend of modeling, CSD at 2.86 g/kg was fed to rats in group 5, 6, and 7 by gastrogavage for 2 successive weeks. Equal volume of distilled water was given to rats in the rest 4 groups. On the 29th day, rats were killed, adrenal weight weighed, and adrenal index calculated. Levels of plasma and hypothalamus corticotropin-releasing hormone (CRH), plasma and pituitary adrenocorticotrophic hormone (ACTH), and plasma corticosterone (CORT) were determined using radioimmunity.

RESULTSCompared with group 1, adrenal index significantly decreased in group 2, 3, and 4 (P < 0.05). Of them, plasma and hypothalamus CRH, plasma CORT increased significantly in group 2 and 4 (P < 0.05). Besides, plasma and pituitary ACTH increased in group 4 (P < 0.05). Plasma and pituitary ACTH, as well as plasma CORT decreased significantly in group 3 (P < 0.05). Compared with group 2, 3, and 4, adrenal index increased significantly in group 5, 6, and 7 (P < 0.05). Compared with group 2, plasma CORT, hypothalamus CRH, and pituitary ACTH decreased significantly in group 5 (P < 0.05). Compared with group 3, plasma ACTH and CORT increased significantly in group 6 (P < 0.05). Compared with group 4, plasma CRH, ACTH, CORT, hypothalamus CRH, and pituitary ACTH decreased in group 7 (P < 0.05).

CONCLUSIONSThe function of HPA .axis was damaged to varying degrees in rats of the three models in this experiment. Hyperactivity of HPA axis existed in GS syndrome and GSPD syndrome. Impairment of feedback regulation in hypothalamus and pituitary was accompanied in GSPD syndrome. Hypofunction of HPA axis existed in PDS. CSD, capable of soothing Gan-qi invigorating'Pi, showed improvement on disarranged HPAA, but with optimal effect on GSPD syndrome. CSD had higher correlation with GSPD syndrome.

Adrenocorticotropic Hormone ; metabolism ; Animals ; Corticosterone ; Corticotropin-Releasing Hormone ; metabolism ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Hypothalamo-Hypophyseal System ; metabolism ; Hypothalamus ; metabolism ; Medicine, Chinese Traditional ; Models, Animal ; Pituitary Gland ; metabolism ; Pituitary-Adrenal System ; metabolism ; Rats ; Rats, Wistar