Forty-two patients with type 2 diabetes mellitus (DM) were refered to 3 groups:type 2 DM without diabetic nephropathy (DN),type 2 DM with DN in the initial stage and type 2 DM with DN in the clinical stage.Ten healthy subjects were served as control group.Plasma adrenomedullin (ADM),urinary?_1- microglobulin (MG) and?_2-MG were detected.The results showed that the level of plasma ADM rose gradually with the development of DN and was positively correlated with markers of tubulointerstiial injury such as urinary?_1- MG and?_2-MG (both P

With the development of tissue engineering,the bone tissue engineering is developing rapidly. Engineering hone typically uses an artificial extracellular matrix (scaffold),osteoblasts or progenitors,and os- teoinductive factors which promote cell attachment,differentiation,and mineralized bone formation.Highly porous scaffolds play a critical role in cell seeding,proliferation,and new 3D-tissue formation.A variety of biodegradable polymer materials and scaffolding fabrication techniques for engineering bone have been developed over the past decade.This article reviews the scaffold design and fabrication methods tor engineering bone to analyze their ad- vantages and limitations.Various architectural parameters of scaffolds important for bone tissue engineering (e.g. porosity,pore size,interconnectivity) are discussed.

ObjectiveTo investigate the features of pulmonary function and influencing factors in patients with cervical spinal cord injury (SCI).MethodsThe pulmonary function data of 48 patients with cervical SCI were analyzed. The correlations between the percent predicted values of vital capacity (VC), maximal voluntary ventilation (MVV), forced expiratory volume of 1st second (FEV1) and V75 (expressed as VC%, MVV%, FEV1%, V75%) and ASIA motor/sensory scores were analyzed. Then, four multiple linear regressions were run to use VC, MVV, FEV1, V75 as an independent variable respectively.ResultsThe percent predicted values of the pulmonary function (VC%, MVV%, FEV1%, V75%) in patients with cervical SCI obviously decreased, which suggested that these patients had a restrictive ventilation disorder. There were significant positive correlations between VC%、FEV1%、V75% and ASIA motor scores (by bivariate correlation tests), no significant correlations between any of pulmonary function parameters and the ASIA sensory scores. Of four linear regression models, the height showed as a protecting factor in 3 linear regression models and weight did in the other one respectively. Of parameters associated with SCI, just ASIA motor scores showed as a protecting factor in 3 linear regression models, no sensory scores or duration appeared in any linear regression models.ConclusionBesides the height and weight, the ASIA motor score is a main factor influencing the pulmonary function.

Objective To compare three kinds of irradiation treatment plans for cervical and upper thoracic esophageal cancer,in order to arrived at proper decision for the patient.Methods From February 2001 to June 2004,43 such patients were studied with three different simulated treatment plans made including conformal plan,conventional four-field plan and conventional two-field plan for every one.All plans were evaluated with iso- dose curve and dose-volume histogram.Results GTV on 95% isodose curve was 99.5%,98.2% and 87.4% in conforaml plan,conventional four-field plan and conventional two-field plan,respectively;PTV_1 and PTV_2 on 95% isodose with 97.8%,97.2%,94.8% and 95.8%,86.6%,73.7%.The volume of＞20 Gy dose of left lung accepted was 18.6%,17.2% and 32.3%,in conformal plan,conventional four-field plan and conventional two-field plan,respectively;the right lung received 20.5%,19.9% and 35.5%.Conclusions Conformal plan is the best in radiotherapy,as it can provide ideal dose distribution of irradiated target with adequate protection of the normal tissues.Conventional four-field plan,being easy to carry out,can replace the conformal plan in most situations.Conventional two-field has the most uneven dose distribution and largest lung volume irradiated.

Acute Disease ; Adolescent ; Child ; Child, Preschool ; Drug Resistance, Multiple ; genetics ; Drug Resistance, Neoplasm ; genetics ; Female ; Gene Expression Regulation, Neoplastic ; Humans ; Leukemia ; physiopathology ; Male ; Neoplasm Proteins ; genetics ; RNA, Messenger ; genetics ; metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; Vault Ribonucleoprotein Particles ; genetics

AIM:To explore the association of the mutation in PPP2R3A exons and retinoblastoma.METHODS:Hospital-based case control study was taken.Retinoblastoma patients (15 cases, as case group) and matched controls (30 controls, as control group) were recruited in this study.Genomic DNA obtained from formalin fixed paraffin embedded (FFPE) and peripheral blood were used as template.PPP2R3A gene exon sequences were detected by PCR-sequencing.Homology analysis was performed using blastn in GenBank.RESULTS:Analyzing PPP2R3A DNA sequences (1001bp) from 15 cases, two reported SNPs had been detected, including rs34629706 and rs144802055.Rs34629706 also occurred in the control group.Rs144802055 appeared only in the case group.CONCLUSION:PPP2R3A gene SNPs of rs34629706 is unrelated to the incidence of retinoblastoma.Relations between rs144802055 and RB needs to be further explored.

ObjectiveTo study how to diagnose thrombosis of intracranial venous sinus and cerebral venous thrombosis(CVT). Methods6 cases with intracranial venous sinus and CVT were analysed by clinical features and imaging signs. ResultsMost patients had symptoms and signs of intracranial hypertension. Some patients manifested symptoms of whole brain or focal neurological deficits. Magnetic resonance imaging (MRI) and magnetic resonance venography (MRV) play important roles for the diagnosis of intracranial venous sinus and CVT, however, digital subtraction angiography (DSA) is one of the most reliable method for early diagnosis of the above diseases.Conclusions According to clinical features and imaging signs, intracranial venous sinus and CVT could be diagnosed accurately .

Objective To investigate the value of tumor-stroma ratio(TSR) in evaluating the prognosis of patients with triple-negative breast cancer (TNBC).Methods A total of 87 patients with TNBC were selected from January 2010 to December 2014 in the Second People's Hospital of Yibin.The TSR was detected by Hematoxylin eosin staining,the patients with TSR ＜50％ were included in the stroma-rich group,and the patients with TSR≥50％ were included in the stroma-rare group.The influencing factors of tumor-free survival and overall survival in TNBC patients were analyzed by COX regression model.The effect of TSR on tumor-free survival and overall survival in TNBC patients was further analyzed by Kaplan-Meier method.Results Among the 87 TNBC patients,there were 38 patients with TSR≥50％ (stroma-rare group) and 49 patients with TSR ＜ 50％ (stroma-rich group).The 5-year tumor-free survival rate and overall survival rate of the 87 TNBC patients was 52.9％ (46/87) and 56.3％ (49/87) respectively.Single factor COX regression analysis showed that the tumor diameter staging,lymph node metastasis,the number of tumors and TSR were significantly correlated with the overall survival rate and tumor-free survival rate of patients with TNBC (P ＜ 0.05).Multivariate COX regression analysis showed that the tumor diameter staging,lymph node metastasis,the number of tumors and TSR were independent risk factors for overall survival rate and tumor-free survival rate of patients with TNBC (P ＜ 0.05).Kaplan-Meier survival analysis showed that the tumor-free survival rate and the overall survival rate of TNBC patients in the stroma-rare group were 68.4％ (26/38) and 73.7％ (28/38),and they were 40.8％ (20/49) and 42.9％ (21/49) in the stroma-rich group.The Log-Rank test showed that the overall survival rate and disease-free survival rate of the TNBC patients in the stroma-rare group were significantly higher than those in the stroma-rich group (x2 =7.788,9.799;P ＜ 0.05).Conclusion TSR is significantly associated with the prognosis of TNBC patients,and it is an independent risk factor for the prognosis of TNBC patients.TSR can be used as an indicator for evaluating the prognosis of TNBC patients.

Aviation ; Humans ; Physical Fitness ; Resistance Training ; Schools ; Students

Based on the interaction between supramolecule of traditional Chinese medicine and enterobacteria, the material basis of Rhei Radix et Rhizoma and Coptidis Rhizoma was explored. Scanning electron microscopy (SEM) and dynamic light scattering (DLS) were used to characterize the morphological differences of Rhubarb single decoction, Coptis single decoction and Rhubarb and Coptis co-decoction. An in vitro antibacterial model (E. coli, E. faecium and B. subtilis) was established to evaluate the damage effect of the combination of Rhei Radix et Rhizoma and Coptidis Rhizoma on enterobacteria. Ultra high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) was used to analyze the changes of chemical components of single decoctions and co-decoctions. The co-decoction of Rhei Radix et Rhizoma and Coptidis Rhizoma was turbid after decocting. The spherical particles of 300-400 nm were observed under SEM, and the co-decoction was more uniform and stable than that of single decoction. The interaction between supramolecules formed after the combination of Rhei Radix et Rhizoma and Coptidis Rhizoma and enterobacteria was significantly different from that of single decoction. In the process of interaction between supramolecules and enterobacteria, the spherical state was maintained, and the medicinal ingredients in Coptidis Rhizoma or Rhei Radix et Rhizoma were blocked, which could effectively alleviate the damage to enterobacteria. This study provided a reference for subsequent studies on the regulation of intestinal flora homeostasis by the combination of Rhei Radix et Rhizoma and Coptidis Rhizoma.