Acute Disease ; Adult ; Benzene ; poisoning ; Female ; Humans ; Leukemia ; chemically induced ; Occupational Exposure ; adverse effects

Objective To investigate the procedures and effects of surgical treatment for double disruption of the superior shoulder suspensory complex (SSSC).Methods Twenty-nine cases of double disruption of SSSC treated from January 2007 to October 2011 were enrolled in the study.There were 19 males and 10 females,at a mean age of 36 years (range,25-49 years).Injury causes included traffic injury in 25 cases and fall from height in 4.An open reduction and internal fixation was performed in 18 cases of scapular neck fracture combined with clavicular fracture,2 cases of scapular neck fracture combined with acromion fracture,2 cases of distal clavicular fracture combined with acromion and glenoid cavity fracture; hook plate fixation and ligament repair were performed in 3 cases of complete dislocation of acromioclavicular joint combined with complete disruption of coracoclavicular ligament ; open reduction and internal fixation and ligament repair were performed in 3 cases of scapular neck fracture combined with acromioclavicular joint dislocation and 1 case of clavicular fracture combined with coracoclavicular ligament disruption.Results All cases were followed up for a mean period of 11.5 months (range,6-30 months).Anatomic reduction of fractures was achieved for all cases and mean healing time was 8.4 weeks (range,7-12 weeks).Mean Constant-Murley score was 91 points (range,72-100 points),which indicated excellent results in 13 cases,good in 11,fair in 5,with excellence rate of 83％.ConclusionBased on the complex anatomic structure of the double disruption of SSSC,surgical management should focus mainly on respective fixation of the double injuries,which leads to good stability and therapeutic outcome.

Objective To study the association between serum interleukin-33 (IL-33) level and human stromelysin-2 (ST2) level in patients with rheumatoid arthritis (RA) associated with interstitial lung disease (RA-ILD) and its correlation with lung function and other laboratory parameters.Methods Two hundred and forty-five newly diagnosed RA patients during March 2012 to March 2013 in the in-patient and out-patient clinic of the First Affiliated Hospital of Liaoning Medical College were enrolled into this study.Patients were further divided into RA group (n=187) and RA-ILD group (n=58).Sixty subjects who came to the hospital for routine health check-up was composed of the normal control group.The clinical data of the two groups and controls were collected and their serum IL-33 and ST2 concentrations were measured.The t test was used to compare the difference between the two groups.Multiple variance analysis was used to com-pare the difference between groups.Pearson's correlation analysis was applied to explore the relationship between IL-33 concentrations and related variables.Results ① This study showed that the prevalence of RA associated interstitial lung disease was 23.7％(58/245).② The concentration of IL-33 [(746±43) pg/ml] and ST2 [(3413±169)pg/ml] of the RA-ILD group was significantly higher than that of the RA group [(433±42) pg/ml,(1500±147) pg/ml] (P＜0.01).③The vital capacity (VC％),forced vital capac-ity (FVC％),maximal midexpiratary flow curve (MMF％) and carbon monoxide diffusing capacity (DLCO) of the RA-ILD group were significantly lower than those of the RA group.④ The serum level of IL-33 was negatively correlated with that of RF and ACPA (IL-33 and RF,r=0.82,P＜0.01; IL-33 and ACPA,r=0.55,P＜0.01).Serum level of IL-33 was negaitively correlated with DLCO (r=-0.80,P＜0.01).Conclusion IL-33 participates in the pathogenesis of RA; and may be involved in the pathogenesis of RA-ILD.

OBJECTIVE To compare the bacterial resistance of wounds and clinical features in burned patients in intensive care unit (ICU) with those in general wards (GW) in the same period so as to provide basis for clinical prevention and treatment. METHODS Nineteen cases with wound infection admitted to the burn unit during June and July in 2005 were included in the retrospective study, 4 cases with 114 bacterial strains were from ICU and 15 cases with 47 bacterial strains were from GW respectively. The clinical features, bacterial culture and sensitivity test to antibiotics were analyzed. RESULTS Susceptibility to bacterial infection in ICU patients was significant than those in GW. The prevalent bacterial strains in ICU were Pseudomonas aeruginosa (PAE), Staphylococcus aureus (SAU) and Acinetobacter baumannii (ABA). In contrast, SAU, ABA, Klebsiella pneumoniae (KPN) and PAE prevailed in GW. Drug resistance of PAE, ABA and KPN to some kinds of antibiotics in ICU was severer than those in GW. CONCLUSIONS There is relatively great difference in bacterial constitution and drug resistance ratio between ICU and GW. To take certain disinfection and isolation measures could effectively prevent bacterial strains from transmitting among the wards.

Objective To evaluate the effect of acupressure on chemotherapy-induced digestive tract reaction of malignant tumor patients.Methods We searched Pubmed,Medline,Embase,AMED,Cochrane Library,Cancerlit and Cinabl,China Biology Medicine disc (CBM),China National Knowledge Infrastructure (CNKI),VIP database (VIP)and Wanfang database,the databases were searched from the establishment of the database to March 2014.We identified randomized controlled trials (RCTs) and of acupressure on chemotherapy-induced digestive tract reaction for malignant tumor patients.Results In total,8 RCT,959 patients were included.Meta-analysis showed that compared with the no implementation of acupressure,acupressure could effectively reduce the frequency,duration and severity of chemotherapy-induced nausea,vomiting and retching.Meanwhile,acupressure could decrease anti-emetic medication dosage,but could not increase quality of life.Conclusions Acupressure can improve the digestive tract reaction of malignant tumor patients,alleviate the suffering of patients.Meanwhile acupressure couldn't increase the medical burden and mental burden of patients.More attention should be paid to the effect of acupressure on baseline level of state anxiety,functional state and more items.

AIM:To investigate the gene expression profile of human lung squamous cell carcinoma in early stage.METHODS:The mRNA was extracted from cancer tissue and normal lung tissue.The mixed probes were labeled and hybridized with chip containing 480 carcinoma related genes,then analyzed by SuperArray Image software to study the gene expression patterns in lung squamous cell carcinoma.RESULTS:192 genes associated with lung squamous cell carcinogenesis were found,which were grouped into transporter,adhesion molecules,cytoskeleton proteins,transcription regulator,genes associated with metabolism and immune response according to functions.127 gens were positive to lung squamous cell carcinogenesis and 65 genes were negative to lung squamous cell carcinogenesis.CONCLUSION:The screen of gene expression profile of human lung squamous cell carcinoma provides valuable information for the research of molecular mechanism of the lung squamous cell carcinogenesis.

Objective To investigate the methods and effects of posterior fixation and fusion in treatment of complete thoracolumbar fracture and dislocation.Methods The study enrolled 8 cases of complete thoracolumbar fracture and dislocation treated by posterior fixation and fusion with pedicle screwrod system between January 2006 and December 2012.There were 7 males and 1 female,at mean age of 31.9 years (range,19-49 years).Mean time interval between injury and surgery was 8.1 days (range,4-12 days).Fracture-dislocation classification was AO type C,Denis three-column injury,and Meyerding grade V.According to American Spinal Injury Association (ASIA),there 5 cases at grades A,1 at grade B,1 at grade C 1 at grade E.Fracture-dislocation segments included T5-T6 in 1 case,T12-L1 in 3,L1-L2 in 2,L3-L4 in 1 and L4-L5 in 1.Results Mean duration of surgery was 220.6 minutes (range,135-335 minutes) and mean intraoperative blood loss was 1 150 ml (range,500-2 400 ml).Seven cases sustained dural laceration during the operation,which were sutured or covered with autologous fat grafts,but 3 of them were subjected to cerebrospinal fluid leakage and healed after conservative therapy.Anatomic reduction was achieved in 6 cases,partial reduction in 1 and non-reduction in 1.Mean Cobb angle improved from 29.3 ° (range,8 °-51 °) preoperatively to 1.9 ° (range,-5°-10 °) postoperatively.After a mean follow-up of 39.3 months (range,2-76 months),2 cases were recovered from preoperative ASIA grade A and B to C respectively and 6 cases (4 A,1 C,1 E) revealed no significant improvement.There was no implant loosening or breakage.One case was died of lung-related complications at postoperative 4 years.One case sustained lumbar deep infection at postoperative 3 weeks and managed by debridement,irrigation,drainage and implant retention.Conclusion Posterior fixation and fusion is the general treatment principle for complete thoracolumbar fracture and dislocation,but the degree of reduction depends on severity of the injured spinal cord.

Objective To investigate the relationship among the spinous process open degree,the relative displacement of the lumbar facet joints(LFJ),and the morphologic change of the intervertebral foramina.Methods From Nov 2010 to Jun 2012,a total of 6 human fresh cadaveric spines was used in this study.All the ligaments were kept.The relative displacement of the corresponding segments LFJ,and the change of height and width of intervertebral foramen were measured through the corresponding open L3-4 and L4-5 spinous process,respectively.Results Lumbar degeneration was described with the following indices including the proliferation and displacement of LFJ,deformation of the intervertebral foramen morphogenesis,nerve root oppression,and lumbar intervertebral stenosis.When the interspinous process spacer was opened up to 2 mm,lumbar intervertebral foramen heights at the L3-4 and L4-5 [(15.62 ± 0.73) mm,(14.67 ± 0.75) mm] were significantly increased (t =26.00,16.02,P ＜ 0.01) compared to the original state [(13.89 ± 0.77) mm,(12.48 ± 0.80)mm].When the interspinous process spacer was opened up to 4mm,lumbar intervertebral foramen heights at the L3-4 and L4-5 [(17.13 ± 0.78) mm,(16.74 ± 0.76) mm] were significantly increased (t =36.15,30.69,P ＜ 0.01) compared to the original state.The foraminal height with a 4 mm distraction was significantly greater than the 2 mm distraction (t =20.82,21.72,P ＜0.01).When the interspinous distraction was 2 mm,L FJ displacement at the L3-4and L4-5 [(0.31 ±0.04) mm,(0.34 ± 0.07) mm] was significantly better than the original state [(0.63 ± 0.03) mm,(0.56±0.05)mm] (t =61.97,58.91,P ＜0.01).When the interspinous distraction was 4 mm,LFJ displacement at the L3-4 and L4-5 [(0.10 ±0.04) mm,(0.12 ±0.06) mm] was significantly better than the original state (t =18.69,18.88,P ＜0.01).No significant difference was found in the change of the intervertebral foramen width [(8.65 ± 0.38) mm,(7.78 ± 0.37) mm] at the 2 mm interspinous distraction compared to the original state(P ＞ 0.05),but a statistically significant difference was found at the 4 mm interspinous distraction compared to the original state [(9.03 ± 0.41) mm,(8.05 ± 0.32) mm] (t =7.78,7.97,P ＜ 0.01).Conclusions Spinous process shove off can effectively improve LFJ displacement,and increase the intervertebral foramen height,but the increase of its width needs to shove off enough distance.

Objective To analyze the prognostic factors associated with three-year survival outcome in patients with serous ovarian adenocarcinoma by classification tree.Methods Retrospectively we analyzed 81 cases with serous ovarian adenocarcinoma who had 3-year clinical outcomes and were hospitalized in People's Hospital from Jan 1991 to Dec 2003 by classification and regression trees(CART)software.Establish the classification tree.Results Among the factors that were associated with the 3-year survival rate,age was the most important factor,other factors in turn were International Federation of Gynecology and Obstetrics(FIGO)stage,lymphoid metastasis,residual size after operation,chemotherapy and pathologic grade.By substitution variable analysis,it was demonstrated that there was cross interaction between age and residual size as well as age and chemotherapy.Conclusion Age,FIGO stage,lymphoid metastasis,residual size after operation,chemotherapy and pathologic grade are important prognostic factors related with three-year survival probability of serous ovarian adenocarcinoma patients.

Objective To identify the T cell epitopes from ovarian cancer associated anti-idiotypic antibody 6B11in order to explore the molecular basis of 6B11 induced cellular immune responses against ovarian cancer.Methods Potential human leukocyte antigen(HLA)A0201 ligands were predicted by using SYFPEITHI algorithm and tested by the T2 binding assay for screening of HLA-A2 binding peptides from 6B11 complimentary determining region(CDR).Cytotoxic T lymphocytes(CTL)to 6B11 or peptides were generated by 3 rounds of in vitro stimulation with 6B11 or peptide-pulsod dendritic cells(DC),and then tested by 51Cr-release assay to ascertain the CTL epitope of 6B11.Cell proliferation assay was performed by using 6B11 specific CTL as responder cells and peptide-pulsed DC as stimulators to ascertain the helper T lymphocyte(Th)epitope of 6B11.Cytokine assay and interferon-γ ELISPOT assay were performed to verify the CTL and Th epitope of 6B11 further.Results Light chain CDR3 peptide(VL CDR3)of 6B11 induced specific CTL to kill HLA-A2 and target antigen positive ovarian cancer cells,which could be blocked by anti human major histocompatibility complex(MHC)Ⅰ antibody.Heavy chain CDR3 peptide(VH CDR3)of 6B11 stimulated the proliferation of 6B11-primed CTL,which could be blocked mainly by anti human MHC-Ⅱ antibody,and further experiments showed that part of the VH CDR3 peptide-primed CTL killed K562 cells.Peptides in VL CDR3 and VH CDR3 were the CTL and Th epitope mimicking the original antigen of 6B11 respectively.Collaboration of 6B11 CTL and Th epitope,or 6B11 CTL epitope and keyhole limpet hemocyanin(KLH),the former was more powerful in inducing specific cellular immune responses against ovarian cancer.6B11 or corresponding CTL and Th epitope specific CIL secreted high levels of interleukin-2 (1630,1503 ng/L)and interferon-γ(5620,5421 ng/L),while basal level of interleukin-4 was detected (253,274 ng/L).ELISPOT assay confirmed the existence of specific interferon-γ secreting cells in 6811 or epitopes specific CTL(196/1×106 T cell,184/1×106 T cell).Conclusions VL CDR3 and VH CDR3 peptides of 6B11 are the CTL and Th epitopes mimicking original antigen which could duplicate the activity of intact 6B11 to induce the cellular immune responses against ovarian cancer.The results have significant theoretical and practical value in application of anti-idiotypic antibody ag anti tumor vaccine.The acquired CTL and Th epitopes as constituents of future multiple peptides against ovarian cancer could be used in peptide vaccine based ovarian cancer therapy.