ObjectiveTo summarize the research progress in creep characteristics of lumbar intervertebral disc.MethodsThe relevant literature at home and abroad was systematically searched. Then, the concept and structural basis of lumbar disc creep, the description of creep characteristics, and the latest progress of its influencing factors were summarized and analyzed.ResultsThe intervertebral disc is viscoelastic. After loading, the deformation increases with time. However, the degree of increase is not linear with time. That is creep, which plays an important role in buffering the load generated by human activities and absorbing energy in order to maintain stable movement of the spine. Both experimental and simulation studies can well describe the creep behavior of intervertebral disc. Various models including standard linear solid model and corresponding constitutive equations can quantify and compare the creep characteristics, which can be obviously changed by the degeneration of intervertebral disc and the mode of loading stress.ConclusionCreep is an important mechanical properties of intervertebral discs, and an in-depth understanding of the creep characteristics of lumbar intervertebral discs is of great guiding significance for the intervention and treatment of low back pain.
目的:探讨骨髓细胞形态学变化特征在鉴别诊断骨髓增生异常综合征(MDS-RA)及巨幼红细胞性贫血(MA)中的意义。方法:骨髓片瑞氏染色,记数骨髓中有核细胞200个,并观察其形态。结果:(1)MDS的骨髓象除巨幼样变外,还有形态的异常。以淋巴样小巨核细胞最具有诊断意义。(2)巨幼红细胞性贫血三系血细胞的巨变程度比MDS-RA明显.结论:MDS-RA与MA细胞形态学既具有相似性,又具有各自不同特征。
ObjectiveTo conclude the effect of surgery in the treatment of primary gastrointestinal lymphoma (PGIL) and provide evidence in subsequent studies and treatments in PGIL.MethodThe relevant literatures at home and abroad in recent years about the role of surgery in the treatment of PGIL were reviewed.ResultsCommon clinical strategies included surgery, chemotherapy, radiotherapy, and so on. Due to the low incidence, there were few large sample, multi-center, and prospective studies. The surgery was beneficial on relieving the potential risk of complications such as bleeding, perforation, and obstruction. In addition, the surgery provided easy access for direct observation and biopsy. Furthermore, specific pathological stage was necessary for subsequent therapy. For certain PGIL, the indications of surgery became increasingly clear. But it was controversial about treatment strategy of PGIL, especially the effect of surgery.ConclusionThe treatment strategy should be individualized according to the lesion site, pathological type, and clinical stage.
Objective To investigate the correlation between RUNX3 expression and human gastric cancer, as well as its clinically pathologic features. Methods Such databases as PubMed, EMbase, VIP, WanFang Data and CBM were searched from their inception to February 28th, 2013 to collect case-control studies about the correlation between RUNX3 expression and human gastric cancer, as well as its clinically pathologic features, and the relevant references of the included literature were also retrieved. Two reviewers independently screened the literature according to the inclusion and exclusion criteria, extracted the data, and assessed the methodological quality. Then meta-analysis was conducted using RevMan 5.0 software. Results A total of 6 case-control studies were included, which included 405 cases in the gastric cancer group and 185 cases in the normal gastric mucosa group. The results of meta-analysis showed that, RUNX3 expression was lower in the gastric cancer group than the normal gastric mucosa group, with a significant difference (OR=0.07, 95%CI 0.04 to 0.12, Plt;0.000 01); it was also lower in the subgroup of gastric cancer accompanied with lymph node metastasis than that without lymph node metastasis (OR=0.37, 95%CI 0.23 to 0.61, Plt;0.000 1); but it was higher in the subgroup of gastric cancer that had infiltrated into serosa than that had not, with a significant difference (OR=3.92, 95%CI 2.29 to 6.71, Plt;0.000 01); and it was also higher in the subgroup of well differentiated gastric cancer that the moderately and poorly differentiated, with a significant difference (OR=0.36, 95%CI 0.22 to 0.58, Plt;0.000 1). Conclusion RUNX3 expression is notably correlated to gastric cancer and its clinically pathologic features. For the quantity and quality limitation of the included studies, this conclusion still needs to be further proved by performing more high quality studies.
Objective To analyze the effects and recurrence rate of single miconazole and the miconazole plus living preparation of lactobacillus for the treatment of the uncomplicated vulvovaginal candidiasis. Methods We searched the Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library Issue 4, 2008) MEDLINE (1966 to January 2009); PubMed (1966 to January 2009); EMbase (1966 to January 2009); CNKI (1966 to January 2009), and the Chinese Biomedicine Database (CBM) (1966 to January 2009) to identify randomized controlled trials of single miconazole versus the miconazole plus living preparation of lactobacillus.The quality of the included trials was assessed. RevMan 5 software was used to conduct meta–analysis. Results Eight trials involving 5 156 patients were included in the effect analysis. Meta-analysis showed miconazole plus with living preparation of lactobacillus was better compared with just miconazole (RR=0.96, 95%CI 0.92 to 1.00, Z=2.12, P=0.03; RR=0.92, 95%CI 0.85 to 0.99, Z=2.17, P=0.03).Seven trials involving 4 852 patients were included in recurrence rate analysis. Meta-analysis showed miconazole plus living preparation of lactobacillus had lower recurrence rate compared with single miconazole (RR=3.72, 95%CI 1.94 to 7.13, Z=3.97, Plt;0.000 1; RR=12.85, 95%CI 8.27 to 19.96, Z=11.37, Plt;0.000 01). Conclusion Currently available evidence shows that the effect in the combined group is better, and the recurrence rate is lower.
Objective To investigate the clinical value of occlusal guide plate combined with intermaxillary fixation screw in mandibular defect repair with free fibular flap. Methods Between August and December 2011, 7 patients with mandibular tumor were treated, including 5 cases of ameloblastoma and 2 cases of gingival cancer. Of 7 patients, 4 were males and 3 were females, aged 32-65 years (median, 50 years). Occlusal guide plate was prepared and the implanted position of intermaxillary fixation screws was determined preoperatively. Hemimandibulectomy was performed in 5 cases, half mandibular segmental resection with condyle reservation in the other 2 cases. The free fibular flaps of 11-13 cm in length were harvested for repairing mandibular defects. When the free fibular flaps were fixed, the occlusal guide plate and intermaxillary fixation screws were utilized to restorate the occlusal relation. The donor site was sutured directly. Results The average operation time was 9.5 hours (range, 7-12 hours). All free fibular flaps survived completely. All incisions at the donor site and recipient site healed by first intention. All patients were followed up 10-14 months with an average of 12.3 months. All patients had symmetrical face, good occlusal relation, normal mouth opening, and normal mandibular lateral movement, and no pain of bilateral temporomandibular joints occurred. Panoramic tomography showed good mandibular contour and the suitable emplacement of fibular flaps postoperatively. No tumor recurrence occurred during follow-up period. Conclusion When repairing the mandibular defect with free fibular flap, occlusal guide plate with intermaxillary fixation screw contributes to simplifying operation, accurate recovery of the appearance and occlusal relation, and improving the oral comfort level postoperatively.
Objective To summarize recent progress of microwave ablation combined with endoscopic technique for liver cancer. Method The literatures relevant to treatment of microwave ablation combined with endoscopic technique for liver cancer in recent years were identified by searching PubMed and CNKI, then summarized and reviewed. Results The treatment of endoscopic microwave ablation or it combined with hepatectomy, interventional embolization, neoadjuvant chemotherapy, and two-step hepatectomy could expand the treatment indications for liver cancer, increase the cure rate, and reduce the intraoperative bleeding, postoperative complications and recurrence. Conclusions Microwave ablation combined with endoscopic technique has less invasion and fast recovery for patient with liver cancer. Multi-disciplinary team collaboration and rational use of varied therapeutic methods in treatment of liver cancer could help to improve treatment effect and prolong survival time of patient.
ObjectiveTo evaluate the diagnostic value of monitoring 1,3-beta-D-glucan (G test) in patients with autoimmune disease complicated with invasive fungal disease (IFD). MethodsA retrospective study was performed in hospitalized patients in the First Affiliated Hospital of Zhengzhou Universisty who were diagnosed as autoimmune disease with lung infection during the immunosuppressive therapy between January 2014 and January 2016. A total of 372 patients were enrolled in this study. All subjects were classified according to the 2006 diagnostic criteria and treatment of invasive pulmonaary fungal infection, with serum 1,3-β-D-glucan results not included in the diagnosis. There were 18 cases with proven IFD, 35 cases with probable IFD, and 70 ceses with possible IFD. Fifty-three patients with proven IFD or probable IFD were as a case group, and another 249 patients with no evidence for IFD were as a control group. The value of the G test for diagnosis of automimmune disease with IFD was analyzed by ROC curve. ResultsThe serum 1,3-β-D-glucan level was significantly higher in the case group when compared with the control group [median (interquartile range): 135.0 (63.1 to 319.0) pg/ml vs. 75.9 (41.2 to 88.1) pg/ml, P<0.05]. When the cut-off value of serum 1,3-β-D-glucan level was set at 93.8 pg/ml, the sensitivity, specificity, positive predictive value, and negative predictive value for diagnosis of autoimmune disease with IFD were 0.65 (95% CI 0.56 to 0.73), 0.87 (95% CI 0.83 to 0.92), 0.70 (95% CI 0.64 to 0.81), and 0.83 (95% CI 0.79 to 0.88), respectively. ConclusionThe 1,3-beta-D-glucan test is a valuable method for diagnosis of IFD in patients with autoimmune disease.