Objective To analyze the etiologies,clinical characteristics and prognostic factors of patients with acute renal failure(ARF)admitted to the hospital at high altitude.Method This retrospective study included clinical data of patients with acute renal failure in the General Hospital of Tibet Military Command from May 2001 to April,2006.Results There were 85 male patients and 63 female patients with mean age(42.4?18.1)years old.Among 148 patients with acquired ARF,52.7% was iatrogenic or nosoeomal origin, demonstrating a trend of increasing.The ARF included pre-renal(n=48,32.4%),renal parenchymal(n= 90,60.8%)and post-renal(n=10,6.8%)in origin.Acute high altitude sickness(n=20)was the major causes of pre-renal ARF.Renal parenchymal ARF could be classified into glomerular vascular lesions(n=24), acute tubular necrosis(n=53),acute interstitial nephritides(n=12),and contusion of unitesticle(n=1).of 90 cases of renal parenchymal ARF,39 patients(43.3%)were induced by medicines.Lithiasis was the major causes of post-renal ARF.The mortality of ARF in our study was 42.6%.The mortality of patients contracted ARF in hospital was much higher than that of patients community ARF in community(55.1 vs 23.6%;P=0.01). There was no significant differences of the mortality between the patients with and without dialysis treatment. Univariate analysis showed that prognosis was correlated with age,the presence of hematuria and oliguria or anuria Hb,and the number of organ system failures.The logistic regression showed that age,Hb and the number of organ system dysfunction were the predictors of mortality.Conlusions The major causes of ARF at high altitude were acute high altitude sickness and the use of medicines with nephrotoxicity.The morbility and mortality of nosocomisl ARF increased significantly.Prevention of MODS is a key management to decrease mortality in severe ARF.

Objective To investigate the relationship between low serum calcium concentration and hematoma volume in patients with intracerebral hemorrhage.Methods Between January 2012 and October 2014,870 consecutive patients with intracerebral hemorrhage admitted to the Department of Neurosurgery,West China Hospital,Sichuan University were enrolled prospectively.The patients completed laboratory serum calcium concentration and head CT examinations within 24 h after attack,and the baseline data and laboratory findings were collected.According to the normal reference value of laboratory serum calcium concentration,the patients were divided into a hypocalcemia calcium group (<2.1 mmol/L;n=193) and a normal calcium group (2.1-2.7 mmol/L;n=677).Spearman correlation analysis was used to analyze the correlation between the blood serum calcium concentration and the hematoma volume on admission.Results (1) The hypocalcemia group compared with normal calcium group,the proportion of male patients was high (73.6% [n=142] vs.66.0% [n=447]),the median score for Glasgow coma scale was lower (9 vs.11),and the median hematoma volume was larger (33.86 cm3 vs.21.69 cm3).The differences were statistically significant (all P<0.05).(2) Spearman correlation analysis showed that the lower serum calcium level on admission was weakly negatively correlated with the volume of hematoma in patients with intracerebral hemorrhage (r=-0.113,P<0.01).Conclusion The study suggested that the hypocalcemia on admission was mostly males in patients with intracerebral hemorrhage,the condition was serious,the volume of hematoma was larger,and the lower serum calcium concentration was negatively correlated with the hematoma volume.

OBJECTIVETo explore the correlation between serum levels of growth differentiation factor-15 (GDF-15) and Thrombolysis in Myocardial Infarction (TIMI) risk scores in patients with unstable angina pectoris (UA).

METHODSThe serum levels of GDF-15 in 97 patients with UA and 30 healthy volunteers were measured using enzyme-linked immunosorbent assay (ELISA) and compared between 3 patient groups with different TIMI scores to analyze relationship between serum GDF-15 levels and TIMI risk scores.

RESULTSThe serum levels of GDF-15 in UA patients were significantly higher than those in the healthy volunteers (P<0.01). GDF-15 levels also differed significantly between patients with different TIMI scores (P<0.01), and showed a significant positive correlation to TIMI risk scores.

CONCLUSIONSerum levels of GDF-15 can be used as an index for evaluating the severity of UA.

Aged ; Angina, Unstable ; blood ; drug therapy ; Female ; Growth Differentiation Factor 15 ; blood ; Humans ; Male ; Middle Aged ; Risk Assessment ; Severity of Illness Index ; Thrombolytic Therapy ; adverse effects

Objective To rational design HCV DNA vaccine candidates and evaluate their specific immunity to HCV in mice. Methods We design to construct two DNA vaccine candidates, one consists of E_2 (the envelope glycoprotein 2 of HCV) gene only, the second consists of E_2-gAD (Globular Domain of Human Adiponectin) fusion gene via overlapping PCR. Confirm the expression of the DNA vaccines by Western blotting, and then vaccinated by injection of DNA vaccines with gene electrotransfer (GET) in BALB/c mice. The immune response was measured by IFN-gamma ELISPOT. Results The DNA vaccine candidate consists of E_2-gAD could effectively express in vitro , and it could induced a higher anti-HCV T cell response in mice than the one consists of E_2 only. Conclusion The HCV DNA vaccine consists of E_2-gAD fusion can increase the immunity of the E_2 to some extend, and the research paved a way to develop and optimize the novel HCV DNA vaccine.

The aim of this study was to investigate the relationship of the gene polymorphisms of myeloperoxidase (MPO) and NAD (P) H: quinone oxidoreductase 1 (NQO1) with the susceptibility to acute leukemia (AL) in Chinese Gansu population. A 1:1 paired case-control study of 150 patients with acute leukemia and 150 cancer-free inpatients as a control was conducted to detect the polymorphisms of MPO and NQO1 by LDR techniques. The results showed that the MPO-463A genotype frequency in patient group was lower than that in control group, and there was significant difference of MPO (G-463A) genotype between patient group and control group (χ(2) = 11.828, P < 0.05, OR = 0.368, 95%CI = 0.205 - 0.610). The NQO1-609T genotype frequency in patient group was higher than that in control group, and there was significant difference of NQO1 (C-609T) genotype between patient group and control group (χ(2) = 17.931, P < 0.05, OR = 1.428, 95%CI = 1.237 - 3.339). The combined gene analysis showed that the AML risk in patients carrying the wild genotypes of MPO and NQO1 was dropped to 33.6%. It is concluded that the MPO and NQO1 gene polymorphisms are associated with susceptibility to AL. The AL risk may decrease in patients carrying MPO (G-463A) mutant gene (GA/AA), while the AL risk may increase in patients carrying NQO1 (C-609T) mutant gene (TC/TT). The combined effect of MPO and NQO1 wild genotypes may further decrease AL risk.
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Case-Control Studies ; Child ; Child, Preschool ; Female ; Genetic Predisposition to Disease ; Genotype ; Humans ; Leukemia ; genetics ; Male ; Middle Aged ; NAD(P)H Dehydrogenase (Quinone) ; genetics ; Peroxidase ; genetics ; Young Adult

As one of the common type of ocular injuries,orbital fracture can result in enophthalmos,diplopia and infraorbital nerve injury,which affects the physiological function of eyeball.Repairing surgery for orbital fracture should be treated for reconstructing the orbital anatomical structure in case of severe enophthalmos and diplopia,or infraorbital nerve injury.Meanwhile,it's crucial to identify the suitable surgery approach and implants because of the specificity and complexity of the orbit.What a clinician expected most is the ideal prognosis obtained easily with minimal operation complication.Transconjunctival approach should be applied as one of the standard approaches for repairing surgery of orbital fracture,offering good operative field with less complications.Titanium mesh and resorbable materials are the ideal implants at present,for their high level of stable quality and plasticity.More and more applications of 3D-printed rapid prototyping technique can guide the new directions of individualization and precision of repairing surgery for orbital fracture.

Objective: To explore the risk factors for ventricular aneurysm formation in patients after acute myocardial infarction (AMI).
Methods: Our research included 2 groups of AMI patients who received percutaneous coronary intervention (PCI)
in our hospital from 2012-04 to 2014-07 as Ventricular aneurysm group,n=146 and Control group,n=142, in which the AMI patients without ventricular aneurysm formation. The baseline condition with aneurysm related risk factors were analyzed and compared between 2 groups including age, gender, hypertension, hyperlipidaemia, diabetes, smoking, family history, MI history, anterior myocardial wall infarction, angina pectoris, left main (LM) disease, the lesion at proximal left anterior descending (LAD) artery, NYHA classiifcation III/IV, chest pain time ≥ 24 hours and ST-segment elevation ≥ 4 adjacent leads in ECG.
Results: Compared with Control group, the patients in Ventricular aneurysm group had the elder age (OR=1.023, 95% CI 1.000-1.046), higher incidence rates of smoking (OR=1.819, 95% CI 1.130-2.928) and anterior MI (OR=9.162, 95% CI 4.657-18.028), more patients with ≥ 4 adjacent ST-segment elevation (OR=6.571, 95% CI 2.426-17.798), while less patients with angina pectoris (OR=0.557, 95% CI 0.335-0.927, allP<0.05. With adjusted relating factors of age, gender, hypertension, diabetes and angina pectoris, the multivariate Logistic regression analysis indicated that smoking (regression coefifcient: 0.833, OR=2.301, 95% CI 1.283-4.125), anterior MI (regression coefifcient: 1.799, OR=6.041, 95% CI 2.831-12.894) were positively related to ventricular aneurysm formation.
Conclusion: Smoking and anterior MI were strongly related to ventricular aneurysm formation in patients after AMI.

database until 2015-01, and all randomized controlled trials (RCT) upon (RVS) pacing and (RVA) pacing in Chinese population were enrolled. According to Cochrane Handbook 5.0.2 quality evaluation criteria, the publications were selected by 2 independent researchers and Meta-analysis was conducted with RevMan5.0 software.
Results: A total of 16 RCT articles including 1199 patients were enrolled in this study. The research was divided into 2 groups: RVS group,n=602 and RVA group,n=597. Meta-analysis indicated that the following indexes in RVS group were better than those in RVA group: the differences between post-and pre-operation for the combination value in LVEF (MD=1.90, 95% CI 0.75-3.05,P=0.001), stroke volume (MD=7.08, 95% CI 2.39-11.76,P=0.003), QRS wave width (MD=29.13, 95% CI 5.71-52.54,P=0.01), LVESV (MD=2.04, 95% CI -4.22 to 8.31,P<0.00001), LVEDV (MD=2.64, 95% CI 1.80-3.49, P<0.00001), BNP (MD=68.00, 95% CI 57.57-78.43,P<0.00001), inter ventricular septum and left ventricular posterior wall motion delay time (SPWMD) (MD=22.68, 95% CI 16.91-28.45,P<0.00001), E/A (MD=0.49, 95% CI 0.41-0.57, P<0.00001), LRVPEI (MD=14.06, 95% CI 12.36-15.75,P<0.00001), resistance of electrode (MD=-67.02, 95% CI -119.96 to -14.08,P=0.01) and pacing threshold (MD=0.09, 95% CI 0.00-0.18,P=0.04). The time of operation in RVS group was longer than that in RVA group, (MD=-11.76, 95% CI -14.69 to -8.82,P<0.00001). The differences between post- and pre-operation in LVEDD, Tei index and X-ray exposure time were similar between 2 groups,P>0.05.
Conclusion: RVS is a relatively feasible pacing method in Chinese population.

OBJECTIVETo study the molecular types of Staphylococcus aureus isolated from a severe food-poisoning and to trace the possible strains.

METHODSReal-time PCR was applied to detect nuc gene as a specific marker for S. aureus, mecA gene encoding methicillin resistance and 5 other genes encoding staphylococcal enterotoxins (sea, seb, see, sed, see). Isolates were also performed with 16S rRNA oligonucleotide sequence analyzing by DNAStar MegAlign 5.0 software and pulse-field gel electrophoresis (PFGE) by BioNumerics Version 4.0 software.

RESULTSThe nuc gene was detected from the 10 isolated strains, sea and seb genes were detected from 7 strains. There were 4 16 S rRNA types and 5 PFGE types found from all the strains.

CONCLUSIONSThree relative S. aureus strains were involved in the severe food-poisoning at least. Molecular subtyping might give a molecular epidemiological evidence and support the source tracing of an outbreak.

Bacterial Typing Techniques ; China ; Electrophoresis, Gel, Pulsed-Field ; Enterotoxins ; Humans ; Staphylococcal Food Poisoning ; epidemiology ; microbiology ; Staphylococcus aureus ; classification ; genetics ; isolation & purification