Objective To evaluate the value of anti-carbamylated protein (CarP) antibody in the diagnosis of rheumatoid arthritis (RA).Methods The clinical data and serum of 247 in-patients with joint pain of Department of Rheumatology,General Hospital of Ningxia Medical University admitted during September 1,2015 to June 1,2016 were collected and divided into two groups according to the final diagnosis:RA group (case group) which included 126 patients and the non-RA group which included 121 patients (control group).The concentration of anti-CarP antibody in serum was measured by enzyme linked immunosorbent assay (ELISA).The serum rheumatoid factor (RF) and anti-cyclic citrullinated peptide (CCP) antibodies were detected at the same time.Mann-Whitney U nonparametric test for statistical analysis,receiver operating characteristic curve (ROC) was drawn to determine the cut-off value of anti-CarP antibody to RA diagnosis and to analyze its diagnostic efficacy.Results The ROC curve showed that the anti-CarP antibody had a cutoff value of 63.77 U/ml,with the sensitivity of 74.60％,and specificity of 71.07％.Compared with RF and anti-CCP antibody,the area under the ROC curve (A) were:Aanti-cyclic citrullinted peptide(anti-CCP)antibody (0.88)＞ARF (0.85)＞Anti-CarP antibody (0.78).There was no significant difference between the Aanti-CCP antibodies and ARF as well as ARF and Aanti-CarP antibodies (Z=1.29,P=0.20;Z=1.30,P=0.20),but there was significant difference between Aanti-CCP antibody and A anti Carp antibody (Z=2.28,P=0.02).Conclusion Anti-CarP antibody has certain value in the diagnosis of RA,and can be used as the serological index for RA diagnosis.

Objective To explore the effect of exogenesis VEGF 120 gene on the apoptosis of brain cells in the HIBD of newborn rats. Methods VEGF eukaryotic expression plasmid (pCDNA 3.1/r VEGF 120) was constructed by cloning rat VEGF 120 cDNA into eukaryotic expression vector pCDNA 3.1. The HIBD model was established with seven days old SD rats,and all rats were diveded into two groups at random :contral group 18 rats( every rat model was injected pCDNA 3.1 100 μg immediately after hypoxia-is-chemic.then raised seven days) and therapy group 18 rats (every rat model was injected pCDNA 3.1/ rVEGF 120 100 μg immediately after hypoxia-ischemic). Flow cytometer( FCM) was used to detect the ratio of apoptosis of brain cell. Results There was a significant decrease in the ratio of apoptosis brain cells( control group 17.505 ± 0.949; therapy group 8.93 ± 0. 332). Conclusion The VEGF gene product can reduce apoptosis of brain cells.

Objective To investigate the effect of split-bolus spectral computed tomography(CT) on the portal venography and radiation dose.Methods The prospective study was adopted.The clinical data of 119 patients who underwent spectral CT at China-Japan Union Hopital from September 2014 to March 2015 were collected.Patients were randomly divided into the portal venography with split-bolus spectral CT single-phase enhanced scan group and portal vein multi-phase scan group by random sequence method.In the portal venography with split-bolus spectral CT single-phase enhanced scan group,the spectral CT was used with the method of split-bolus single phase imaging,and in the portal vein multi-phase scan group,standard spiral CT was used to perform three-phase scan.Two observers evaluated CT portal venography subjectively and objectively,measured CT values,contrast to noise ratio (CNR),signal noise ratio (SNR),and calculated radiation dose.Observed indices included (1) choice of optimal monochromatic images.(2) CT values of portal veins,measurement of CNR and SNR.(3) Subjective scoring of portal venography quality.(4) Comparison of radiation dose.Measurement data with normal distribution were presented as x ± s,comparison between groups was analyzed by independent sample t test.Comparison of count data was analyzed by chi-square test.Results The 113 patients were screened for eligibility,including 59 in the portal venography with split-bolus spectral CT single-phase enhanced scan group and 54 in the portal vein multi-phase scan group.(1) Choice of optimal monochromatic images:optimal monochromatic images were abstracted at 60 keV from spectral CT portal venography.(2) CT values of portal veins and measurement of CNR and SNR:the CT values of intrahepatic portal vein,extrahepatic portal vein and branches of portal vein were (319 ± 44) HU,(328 ± 53) HU,(294 ± 45) HU in the reconstructed images at the energy level of 60 keV in the portal venography with split-bolus spectral CT single-phase enhanced scan group and (213 ±41)HU,(228 ±49)HU,(210 ±41)HU in the portal vein multi-phase scan group,with significant differences between the 2 groups(t =8.04,6.34,6.82,P ＜ 0.05).The CNR of intrahepatic portal vein,extrahepatic portal vein and branches of portal vein were 15 ± 5,24 ± 8,22 ± 7 in the portal venography with split-bolus spectral CT single-phase enhanced scan group and 13 ± 4,20 ± 6,19 ± 6 in the portal vein multi-phase scan group,respectively,with no significant difference (t =-1.13,-1.89,-1.51,P ＞ 0.05).The SNR of intrahepatic portal vein,extrahepatic portal vein and branches of portal vein were 31 ± 6,29 ± 6,27 ± 6 in the portal venography with split-bolus spectral CT single-phase enhanced scan group and 29 ± 7,28 ± 9,26 ± 6 in the portal vein multi-phase scan group,respectively,with no significant differences (t =-0.688,0.615,0.600,P ＞ 0.05).(3) Subjective scoring of portal venography quality:the subjective score of image quality of portal venography was 14.3 ± 1.0 in the portal venography with split-bolus spectral CT single-phase enhanced scan group and 12.5 ± 1.8 in the portal vein multi-phase scan group,with a significant difference (t =12.43,P ＜ 0.05).(4) Comparison of radiation dose:the radiation dose was (8.1 ± 1.1)mSv of patients in the portal venography with split-bolus spectral CT single-phase enhanced scan group and (17.4 ± 7.5) mSv in the portal vein multiphase scan group,with a significant difference (t =24.14,P ＜ 0.05).Conclusion Spectral CT portal vein imaging combined with split-bolus protocol can achieve better manifestations of portal vein and its branches,and reduce radiation dose in the scanning process.

Objective To compare the outcomes of arthroscopic single-row and suture-bridge repair of medium-sized rotator cuff tears through clinical and MRI assessment.Methods Forty-five patients with medium-sized rotator cuff tears who underwent arthroscopic repair using single-row (SR,n=29) or suture-bridge (SB,n=26) technique between July 2014 to June 2015 in our hospital,were retrospectively enrolled in this study.All surgeries were performed by the same senior doctor.The functional outcomes were assessed using the rating scale of the University of California at Los Angeles (UCLA),American Shoulder and Elbow Surgeons shoulder index (ASES),Fudan University Shoulder Score (FUSS),visual analog pain scale score (VAS),and range of motion (ROM) before the operation and at the last follow-up.MRI examination was performed at the final follow-up.Results Finally 50 patients were followed up successfully,24 in SB group and 26 in SR group.There were no significant differences between the two groups in terms of age,sex,follow-up duration,and the affected side.Before the operation,no significant differences were observed between the 2 groups in all the measurements.After more than 1-year follow-up,significant improvement was found in all measurements for both groups,but without significant differences between them.MRI examination showed no re-tears in either group.According to the Sugaya's classification,there were more type Ⅰ patients in SB group than SR group (83.3％ vs 61.5％),but the difference was not significant.Conclusion Arthroscopic suture-bridge repairing of medium-sized rotator cuff tears results in safe and good early clinical outcomes.However,compared with the single-row technique,there was no significant advantage.Although the MRI examination showed a better result of rotator cuff healing in the early stage,its long-term outcomes need further studying.

Objective To discuss the importance of saving the life of patients and the severity assessment in early emergency for the trauma and hemorrhagic shock patients in the first-aid of pre-hospital and emergency department.Methods Retrospective anal-ysis of the 182 patients data.Results With early and aggressive treatment,177 cases of survival,5 cases of death,and the survival rate 97.3%.Conclusion The disease of traumatic shock patients is complex,high mortality.the early detection,taking timely and effective rescue measures are the key to increase the survival rate.

Objective To investigate the incidence and risk factors of chronic post-surgical pain (CPSP) and its effects on the quality of life in a large sample prospective study.Methods A total of 1098 patients of either sex,aged 18-70 yr,of American Society of Anesthesiologists physical status Ⅰ or Ⅱ,undergoing elective surgery,were enrolled in the study.Data regarding patient age,gender,body mass index,educational level,marital status,living situations,occupation,pre-surgical pain in the site of surgery,complications,type of surgery,surgery time and anesthesia method were recorded.The highest numeric rating scale scores within 3 days after surgery were also recorded.The patients were followed up at 3,6 and 12 months after surgery to record the development of CPSP.The patients were divided into CPSP group and non-CPSP group according to whether or not CPSP developed.Multivariable logistic regression analysis was performed to identify the risk factors for CPSP,and the quality of life was scored.Results A total of 981 patients completed the 1 year follow-up after surgery,the incidence of CPSP was 35.7％,and the constituent ratio of the distribution of the course was as follows:3 months ≤ postsurgical course ＜ 6 months was 33.1％;6 months ≤ postsurgical course ＜ 12 months was 16.8％;postsurgical course ≥ 12 months was 50.1％.Female,no diabetes mellitus and pre-surgical pain in the site of surgery were the independent risk factors for CPSP (P＜ 0.05).Compared with non-CPSP group,the physiological function score,professional function score,body pain score,vitality score,social function score,mental health score and general health score were significantly decreased (P＜0.01),and no significant change was found in the emotional function score in CPSP group (P＞0.05).Conclusion The probability of development of CPSP is high and the course is long,and the quality of life score is decreased;female,no diabetes mellitus and pre-surgical pain in the site of surgery are the independent risk factors for CPSP.

BACKGROUND:The regulatory role of extracellular signal regulated kinase 1/2 (ERK1/2) and nuclear factor kappa B (NF-κB) signal pathways in the osteogenic differentiation of MC3T3-E1 cells subjected to mechanical strain remains unclear.
OBJECTIVE:To investigate the effects of ERK1/2 and NF-kB signal pathway on alkaline phosphatase, type Ⅰcol agen, osteocalcin and interleukin-6 expression in osteoblasts in response to mechanical strain, and to explore the regulatory effects of ERK1/2 and NF-kB signal pathway on osteoblast differentiation.
METHODS:MC3T3-E1 cells cultured in vitro were separately treated with ERK1/2 pathway specific inhibitor PD098059 and NF-kB pathway inhibitor PDTC for 30 minutes, and subjected to12%elongation for 24 hours. Normal cells and cells along loading 12%mechanical strain for 24 hours were considered as controls. Enzyme linked immunosorbent assay and real-time PCR were utilized to detect alkaline phosphatase activities, type Ⅰcol agen, osteocalcin and interleukin-6 mRNA expression before and after cellloading.
RESULTS AND CONCLUSION:Under 12%mechanical strain, alkaline phosphatase, type I col agen, and interleukin-6 expression was regulated by ERK1/2 signal pathway in MC3T3-E1 cells, but osteocalcin gene expression was not affected by ERK1/2 pathway. NF-kB signal pathway inhibitor PDTC significantly suppressed alkaline phosphatase activities in MC3T3-E1 cells under mechanical strain, and inhibited interleukin-6 gene expression. However, type I col agen and osteocalcin gene expression was not affected by NF-kB signal pathway. Results suggested that mechanical strain affected osteogenic differentiation and relevant gene expression in MC3T3-E1 cells by ERK1/2 and NF-kB signal pathway.

OBJECTIVE: To determine the effect of preamputation pain on the behavioral response and astrocytic activation in the spinal cord of amputated rats, and to assess the association between preamputation pain and chronic amputation-related pain. METHODS: A total of 84 adult male SD rats were randomly distributed into an NA group (n=42) and a PA group (n=42). The NA group was intraplantarly injected with saline 100 μL, while the PA group was intraplantarly injected with complete Freund's adjuvant (CFA) 100 μL in both cases at 7 d before the amputation. Thermal withdrawal latency (TWL) was measured before the injection and at 1, 3, 5, and 7 d after the injection. All rats were amputated on the 7th day. The TWL, diet and water intake were measured on 1, 3, 5, 7, 10, 14, 17, 21, and 28 d after the amputation. Expression of glial fibrillary acidic protein (GFAP) in the L4-6 of spinal cord was measured by immunohistochemistry before the saline/ CFA injection, 7 d after the injection and 1, 3, 5, 7, 10 d after the amputation.. RESULTS: The TWL significantly decreased on 1, 3, 5, and 7 d after the intraplantar administration of CFA compared with the basic value in the PA group (P<0.05), while there was no difference between 1, 3, 5, and 7 d after the intraplantar administration of saline and the basic value in the NA group (P>0.05). In addtions to the basic value, the TWL of the PA group was shorter than that of the NA group at the above-mentioned time-points (P<0.05). Compared with the preoperative level, the diet and water intake decreased significantly after the amputation in both groups, but recovered to the preoperative levels, by 3 d after the amputation in the NA group, and by 5 d after the amputation in the PA group. Compared with the TWL of the residual limb on the day of amputation, the TWL of the residual limb increased significantly 3 d after the amputation and remained elevated until 28 d after the amputation in the NA group (P<0.05), while there was no difference between each time point after the amputation and the day of the amputation in the PA group. Compared with the basic value, there was an obviously high expression of GFAP in the NA group beginning on the day of amputation and in the PA group 7 d after the CFA injection (P<0.05). After the amputation, the expression of GFAP was significantly higher in the PA group (P<0.05). CONCLUSION Preamputation pain delays the recovery and activates the spinal astrocytes which may turn the acute postoperative pain into a chronic one.
Amputation ; Animals ; Astrocytes ; physiology ; Behavior, Animal ; Male ; Pain ; physiopathology ; Pain, Postoperative ; physiopathology ; Preoperative Period ; Rats ; Rats, Sprague-Dawley ; Spinal Cord ; physiopathology

We treated 20 patients suffering from uncertainty statements syndrome (USS) with stellate ganglion block (SGB) therapy. The medical infrared thermography was examined before and after the SGB therapy. Analysis on the changes of surface temperature as well as the outcome of the patients was carried out. Among the mentioned 20 patients, 15 (75%) got obvious effect, 4 (20%) fairly good effect and 1 (5%) a little improvement after the SGB therapy. The corresponding surface temperatures of these patients were 1.32 +/- 0.27 degrees C, 0.97 +/- 0.31 degrees C, and 0.76 +/- 0.33 degrees C, respectively. The more the surface temperature changed, the better the efficacy of the therapy was. The medical infrared thermography may objectively represent the therapeutic effect of SGB on the USS.
Autonomic Nerve Block ; Fatigue ; therapy ; Humans ; Pain ; Stellate Ganglion ; Syndrome ; Thermography ; methods

Objective This present study was to examine the prevalence and determinants of one-night-stand behavior among young men who have sex with men (YMSM).Methods A total of 403 YMSM aged 16 to 25 were recruited through internet promotion,extending activity and HIV VCT in Wuhan.Data was gathered through anonymous questionnaire.Binary logistic regression was used to examine factors associated with one-night-stand behavior.Results Of the 398 YMSM,48.99％ (195/ 398) reported having had casual sex in the last 6 months.Of the ones having had casual sex,34.29％ (60/175) and 28.65％ (49/171) reported using condoms consistently during anal or oral sexual contacts,respectively.These figures were lower than those of YMSM not having casual sexual contacts [with anal sex as 49.08％ (80/163) and oral sex as 38.85％ (61/157)].76.80％ (149/194) of the YMSM reported having had multiple sexual partners,with the figure higher than those without [33.15％ (60/ 181)] (P＜0.01).Results from the logistic regression analysis showed that the following factors seemed to be associated with casual sex activities among YMSM,including:often using intemet,(OR=4.89,95％ CI:1.90-12.54),taking illegal drugs (OR=2.72,95％ CI:1.60-4.63).Conclusions YMSM who bad engaged in casual sex,practicing unprotected sex or having multiple sexual partners,were recognized as high risk population.Targeted intervention programs are needed to decrease the one-night-stand behavior.Internct intervention strategy seemed an important method to serve the purpose.