Objective To explore the expression of anti-MICA antibodies and evaluate its influence on acute rejection and renal function in early period after renal transplantation. Methods A total of 29 sensitized subjects (PRA＞20 %) were enrolled in this study. All the patients underwent protein A immunoabsorption treatment and the expression of anti-MICA antibodies was detected before and after treatment. Triple immunosuppressive regimen consisting of tacrolimus, mycophenolate mofetil (MMF) and steroid was given to prevent graft rejection. The correlation between the expression of anti-MICA antibodies and acute rejection or serum creatinine (SCr) level was analyzed.Results The expression of anti-MICA antibodies was detected in 8 candidates (27. 6 % ,8/29) ,and 6 kinds of anti-MICA antibodies simultaneously expressed were found in one individual, 3 kinds in one case,and sole kind in 6 patients. There was no significant difference in acute rejection rate between positive anti-MICA antibodies group and negative group [37.5 % (3/8) vs 38. 1% (8/21), P＞0.05). The positive expression rate of anti-MICA antibodies in the recipients with PRA ≥40% was higher than that in those with PRA ＜40% [43. 8 % (7/16) vs 7. 7 % (1/13),P＜0.05]. The SCr level in patients positive for anti-MICA antibodies was markedly higher than that in those negative anti-MICA antibodies at the 1st week postoperatively ( 135.4 ± 21.4 vs 108. 6 -+ 31.6 μmol/L, P＜0.05). The SCr level in the patients with positive anti-MICA antibodies, however, was reduced to the normal range at the 2nd week after surgery (P＞0.05). The levels of anti-MICA antibodies were continuously decreased in the candidates undergoing protein A irnmunoadsorption treatment. Conclusion Higher expression of anti-MICA antibodies exists in sensitized recipients and possesses an influence on the recovery of renal function in early postoperative period. Protein A immunoadsorption can eliminate anti-MICA antibodies effectively in sensitized recipients.

Simple and sensitive methods were developed for the determination of indapamide, perindopril and its active metabolite perindoprilat in human plasma or whole blood by hyphenated ultra-performance li-quid chromatography-mass spectrometry (UPLC-MS/MS). Indapamide-d3, perindopril-d4 and perindo-prilat-d4 were used as the internal standards. The separation was performed on a Thermo BDS Hypersil C18column (4.6 mm × 100 mm, 2.4 μm) for indapamide and perindopril simultaneously following a protein precipitation pretreatment of the biosamples. The separation of perindoprilat was achieved in-dependently on a phenomenex PFP column (4.6 mm × 150 mm, 5 μm). All the analytes were quantitated with positive electrospray ionization and multiple reactions monitoring mode. The assay exhibited a linear range of 1–250 ng/mL for indapamide, 0.4–100 ng/mL for perindopril and 0.2–20 ng/mL for peri-ndoprilat. The methods were fully validated to meet the requirements for bioassay in accuracy, precision, recovery, reproducibility, stabilities and matrix effects, and successfully applied to the pharmacokinetic study of perindopril tert-butylamine/indapamide compound tablets in Chinese healthy volunteers and the comparative pharmacokinetic study between plasma and whole blood.

OBJECTIVETo investigate the clinical effects of anterior cervical intervertebral space decompression under microscope in treating cervical spondylotic myelopathy in elderly patients.

METHODSFrom June 2009 to March 2012, 43 patients with cervical spondylotic myelopathy were treated with anterior cervical intervertebral space decompression and intervertebral fusion under microscope. There were 26 males and 17 females, aged from 60 to 72 years old with an average of (64.9±3.7) years. Japanese Orthopaedic Association System (JOA) score was from 7 to 12 points with an average of (9.5±1.8) points before operation. The function of nerves was assessed before and after operation according to JOA.

RESULTSAll patients were followed up from 10 to 18 months with an average of (14.7±1.6) months. Postoperative JOA score was (13.81±1.44) points (ranged, 10 to 16), had significantly higher than preoperative (P<0.01). According to the rate of the improved JOA score, 9 cases got excellent results, 26 good, 7 fair, 1 poor.

CONCLUSIONAnterior cervical intervertebral space decompression under microscope for cervical spondylotic myelopathy in elderly patients is safe and effective.

Aged ; Cervical Vertebrae ; surgery ; Decompression, Surgical ; methods ; Female ; Humans ; Male ; Microscopy ; Middle Aged ; Spondylosis ; surgery

Heterogeneous nuclear ribonulcleoprotein(hnRNP)plays a variety of roles in pre-mRNA splicing, nuclear export of mRNA and turnover. It is reported that hnRNP not only takes part in regulating the development of neuron and glial cells, but is closely related to various central nervous system diseases. This paper reviewed the structure, function and the role of hnRNP in the central nervous system in order to provide new insight into the molecule mechanism of nervous system diseases.

Objective To provide references for the plan-making of mental intervention on new recruits through the exploration of the comprehensive psychological behavior training influences on psychological stress and health and relevant factors.Methods 436 new recruits in training period were divided into comprehensive psychological behavior training group (intervention group) and non intervention group (control group).By randomly selected 2 (intervention group,control group) × 2 (Before training and after training) matching design,the questionnaire survey was carried out using stress-reaction questionnaire (SRQ),symptom checklist 90 (SCL-90),eysenck personality questionnaire(EPQ),trait coping style questionaire(TCSQ) at the 15th day and 75th day.t-test between group and matched t-test within group and multiple stepwise regression analysis were carried out.Results (1) The SCL-90 total point of new recruits in intervention group (125.26±36.52)and control group(124.92± 34.79) before the training and the difference of SRQ and TCSQ factor scores had no statistical significance(P＞ 0.05).The difference after the comprehensive psychological behavior training had no statistical significance (P＞ 0.05) as the total points of SCL-90 of intervention group(125.63±36.74) and other factors' score were compared with before.Except for the somatization and force,the total points of SCL-90 (131.21 ± 39.98)and other factor scores of the control group were all higher than what they were in the early period of the training significantly (P＜ 0.01 or P＜0.05).In the later period of group training,from the parallel controlled study among groups we found that except for the somatization and force,the total points of SCL-90 and other factor scores of the control group are all lower than the control group (P＜0.0 or P＜0.05).(2)The total points of intervention group's SCL-90 and SRQ had significant positive correlation with negative coping and stability(r=0.313-0.698,P＜0.01) while it had negative correlation with introversion and extroversion(r=-0.293--0.207,P＜0.01) as well as dissimulation at the later period of group training,however,it did not have significant correlation with positive coping method (P＞0.05).(3) The regression analysis showed that factors significantly affected the total score of SCL-90 respectively was:SRQ total score,negative coping method,stability,introversion-extroversion and psychoticism (P＜ 0.01).Five variables'coefficient of determination R 2 =0.665,F=247.82,P＜ 0.01.Conclusion The comprehensive psychological behavior training could reduce the over psychological stress of new recruits,promote their positive coping attitude and protecting their psychological health.Coping method and personality characteristics are important mediating variable between new recruits' psychological stress and mental health.

Objective To determine whether intermittence irradiation of single blue or white light have an adverse effect on the DNA of newborn infants with hyperbilirubinemia by examining the sister chromatid exchange(SCE)frequency of peripheral blood lymphocytes.Methods The frequency of SCE in lymphocytes of 40 icteric infants treated by different phototherapy(PT) methods was a nalyzed by sister chromatid differetance staining technique (SCD).The patients receiving PT were divided into three groups according to two methods of PT,group A:single blue light,20 cases; group B:single white light,20 cases.Results 1.In group A, there was no difference between the levels of SCE before and after therapy within 3 days;but after 4 days, the levels of SCE increased.2.Obvious changes were observed in group B,and the frequency of SCE increased after 1 day and increased significantly in a dose-dependant manner.3.After treatment, the SCE frequency of group B was higher than that of group A.Conclusions PT has mutagenic effect on newborns with hyperbilirubinemia. The effect of single white light on peripheral blood lymphocytes of neonates is more significant.

Objective:The purpose of this study was to improve teaching quality of pharmacology by integrating different form of clinical knowledge.Methods:We tried to add the clinical documents such as some related videos and pictures,many common drugs' trade-names and analysis of typical cases into teaching of pharmacology in undergraduate course in our college.Results:Both the theory examination scores and ability of aggregate analysis of cases were higher in the experiment groups than in the controlled ones.And the students considered that the teaching mode with clinical knowledge could stir up their interest in learning pharmacology and increase teaching effect.Conclusion:The teaching mode of incorporating clinical knowledge into pharmacology would be helpful to improve teaching quality of pharmacology.

Objective To discuss the relationships between regular pattern changes of plasma fibrinogen (Fib),D-dimer and fibrinogen degradation products (FDP) levels and the recent dissolution of thrombus in patients with pulmonary embolism (PE) in 14 days after treatment.Methods A prospective study was conducted.PE patients admitted to Departments of Respiratory Disease in 4 hospitals from January 2015 to March 2016 were enrolled and all of them were treated with thrombolysis and/or anticoagulation after admission.The computed tomographic pulmonary angiography (CTPA) was examined pre-treatment and 14 days post-treatment in PE patients.The pulmonary artery obstruction index (PAOI) was assessed according to the Mastora scoring method to estimate the thrombus load.The plasma Fib,D-dimer and FDP levels were measured before and on 1,2,3,5,7 and 14 days after treatment,and the relationships between the change regularities of these parameters and PAOI were also analyzed.Results A total of 42 PE patients were enrolled.The curve change of coagulation-fibrinolytic system parameters in 14 days after treatment showed that the Fib level was raised to its peak on the 3rd day after treatment and then decreased (g/L:4.24 ± 1.45 vs.3.83 ± 1.56),representing that its curve change was in accordance with the quadratic model (P =0.095).After treatment,the D-dimer and FDP levels were kept declining,they were reached the valley on 14th day [D-dimer (mg/L):1.58 ± 1.38vs.8.84 ± 6.35,FDP (mg/L):4.23 ± 3.63 vs.23.41 ± 16.54],and their curve changes were in accordance with the cubic model (F was 32.190 and 34.326,respectively both P =0.000).The PAOI variation before and 14 days after treatment [(18.77 ± 14.22)％] was not correlated with Fib variation [(1.20 ± 0.93) g/L,r =-0.194,P =0.219],but was positively correlated with D-dimer variation [(7.29 ± 7.10) mg/L] and FDP variation [(19.29 ± 18.67) mg/L,r was 0.556 and 0.460,respectively;P was 0.020 and 0.002,respectively].Conclusions The D-dimer and FDP levels are kept falling in PE patients after treatment,suggesting that the pulmonary artery embolus is being dissolved.

OBJECTIVETo establish an ELISA approach to study the interaction of polysaccharides with cytokine in vitro.

METHODSThe heparin BSA complexes (HBC) were synthesized with a chemistry method and separated using a 1 X 90 cm column of Separose 4B. After identification of the complex via SDS-PAGE,the wells of ELISA plates were coated with HBC and the interaction of HBC with interferon-gamma (IFN-gamma) was detected. The effects of heparin, low molecular weight heparin (LMW heparin), chondroitin sulfate (CS), hyaluronic acid (HA) and carrageenans on the binding of HBC to IFN-gamma were tested in this system.

RESULTHuman recombinant IFN-gamma bound to heparin in a concentration dependent manner, the binding of IFN-gamma to HBC was detected at the concentration of 0.25 ng, and saturated at around 2 ng. Free heparin, LMW heparin, CS,HA and carrageenans competed for the binding of IFN-gamma to HBC with significant different ability. The IC(50)concentrations of heparin and LMW heparin were 2.40 microg/ml and 18.60 microg/ml respectively.

CONCLUSIONIFN-gamma is a cytokine with high binding affinity to heparin and carrageenans family but poor to CS-A and CS-C. ELISA is a simple, sensitive approach to detect the interaction of polysaccharides with cytokine in vitro.

Enzyme-Linked Immunosorbent Assay ; methods ; Heparin ; metabolism ; Interferon-gamma ; metabolism ; Polysaccharides ; metabolism ; Serum Albumin, Bovine ; metabolism

Objective To research the jugular foramen,internal auditory pore (IAP)and the turning point between its components by imageological methods and to provide theoretical basis for retrosigmoid approach in the operation of acoustic neurinoma.Methods The skulls of 100 volunteers were scanned to get the final result with thin-section computed tomographic image. High-resolution spiral CT multiplane reformation was used to reform images that were parallel to the Frankfort horizontal plane to measure the distance between the turning point of retrosigmoid (A),the edge of jugular foramen(B)and the lower edge of the internal auditory canal(C)(denoted AC,AB,BC) and the shortest distance from the jugular foramen to AC.The angles between AC,AB and sagittal axis(α,β) were measured.Results The distance of AC was (44.94 ± 3.84)mm,the distance of AB was (43.68 ± 4.56)mm.The distance of BC was (6.15 ±2.04)mm,and the shortest distance between jugular foramen and AC was (5.21±0.23)mm.The angleαwas measured as (39.50±4.74)°,and the angleβwas measured as (46.35± 5.51)°.Conclusion The research measure the distance and angle between entry points and landmarks of retrosigmoid approach and the safe distance.