Cardiovascular Diseases ; epidemiology ; etiology ; Environmental Exposure ; adverse effects ; Humans

OBJECTIVE: To find the marker peptides of five kinds of glue medicines including deerhorn glue, tortoise shell glue, donkey-hide gelatin, bovine-hide gelatin, and pig-hide gelatin. METHODS: The characteristic peptides of different gelatins were identified by tripsin digestion and HPLC-MS/MS. RESULTS: The marker peptides of five glue medicines were found, ie, donkey-hide gelatin m/z 539.8, deerhorn glue m/z 765.4, tortoise shell glue m/z 631.3, bovinehide gelatin m/z 641.3, pig-hide gelatin m/z 774.5, and the methods which can be used to identify the glue medicines were established according to the marker peptides. CONCLUSION: The marker peptides that we found can be used for the identification of glue medicines.

Background: Iliac vein compression syndrome (IVCS) is an important cause of deep vein thrombosis, but the incidence of IVCS is still unclear. The purpose of this prospective study was to determine the incidence of IVCS in an asymptomatic patient population and to evaluate the risk factors in patients with and without IVCS. Methods: From October 2011 to November 2012, a total of 500 patients (228 women and 272 men; mean age of 55.4 ± 14.7 years) with no vascular?related symptoms were enrolled in this study. Computed tomography was performed to evaluate all patients. The degree of venous compression was calculated as the diameter of the common iliac vein at the site of maximal compression divided by the mean diameter of the uncompressed proximal and caudal left common iliac vein (LCIV). We compared the stenosis rate of the common iliac vein in women and men according to age and followed up patients to evaluate outcomes. Results: The mean compression degree of the LCIV was 16% (4%, 36%); 37.8% of patients had a compression degree ≥25% and 9.8% had a compression degree ≥50%. There was a significant difference between men and women in the LCIV compression degree (9% [3%, 30%] vs. 24% [8%, 42%]; U = 4.66, P < 0.01). In addition, the LCIV compression degree among younger women (≤40 years) was significantly different compared with that in older women (>40 years) (42% [31%, 50%] vs. 19% [5%, 39%]; U = 5.14, P < 0.001). Follow?up was completed in 367 patients with a mean follow?up of 39.5 months (range, 6–56 months). The incidence of IVCS in the follow?up period was 1.6%. Stenosis rate and the diameter of the site of maximal compression correlated with the incidence of IVCS. Multivariable Cox regression analysis showed that the stenosis rate was an independent risk factor of IVCS (Wald χ2 = 8.84, hazard ratio = 1.13, P < 0.001). Conclusions: The incidence of IVCS was low and correlated with the stenosis rate of iliac vein. Preventative therapy may be warranted for common iliac vein compression in patients at an increased risk of venous thromboembolism, especially patients with a higher iliac vein compression degree.

BACKGROUNDTotal hip arthroplasty (THA) is one of the most effective treatments for phase III and IV hip arthrosis. Lower limb length balancing is one of the determining factors of a successful surgery, particularly in patients with developmental dysplasia of the hip (DDH). The purpose of this study was to evaluate the postoperative change in intra-pelvic obliquity (intra-PO) angle in the coronal plane and its effects on leg length discrepancy (LLD) within 2 years.

METHODSA total of 78 patients (70 females, 8 males) were enrolled in this study. All patients were suffering from DDH with varying degrees of LLD. Pelvic plain radiographs were collected before and after the operation. The intra-PO angles were measured 0, 0.5, 1 and 2 years after THA. At the same time, postoperative LLD was measured with blocking test.

RESULTSPO changed significantly in the first year after THA surgery (0 year vs. 0.5 year, P < 0.01; 0.5 year vs. 1 year, P < 0.01), and the changing value of intra-PO angle (ΔPO) slowed down substantially during the first 2 years after THA (0.5 year vs. 0.5-1 year, P < 0.01; 0.5-1 year vs. 1-2 years, P < 0.01). With the change in intra-PO angle, LLD also got narrow within the 1st year (0 year vs. 0.5 year, P < 0.01; 0.5 year vs. 1 year, P < 0.01). Elderly patients had a smaller intra-PO angle reduction (Group A vs. Group B, P = 0.01; Group B vs. Group C, P < 0.01).

CONCLUSIONSIntra-PO angle and LLD gap narrowed with time after THA surgery. In particular, elderly patients had smaller change in intra-PO angle.

Age Factors ; Aged ; Arthroplasty, Replacement, Hip ; Female ; Hip Joint ; surgery ; Humans ; Leg Length Inequality ; diagnosis ; Male ; Middle Aged ; Retrospective Studies

OBJECTIVETo investigate reductive dechlorination of 4-chlorophenol (4-CP) by nanoscale Fe0 under different conditions.

METHODSNanoscale Fe0 was synthesized by using reductive method. 4-CP and its intermediate products were analyzed by HPLC. Chlorine ion was quantified with DX-100 ion chromatograph. Nano-iron particles were observed under a FEI Quanta 200 FEG environmental scanning electron microscope (ESEM).

RESULTSThe size of the particles was in the range of 10-100 nm. The nano-iron particles could reduce 4-CP effectively. The initial concentration of 4-CP increased with the decrease of the relative degradation rate, whereas the reduced amount of 4-CP increased. Temperature could influence both the dechlorination rate and the reaction pathway. Moreover, the stability and durability of nanoscale Fe0 was evaluated through batch studies over extended periods of time.

CONCLUSIONThe nanoscale Fe0 can be used for sustainable treatment of contaminants in groundwater.

Chlorine ; chemistry ; Chlorophenols ; chemistry ; Iron ; chemistry ; Nanoparticles ; chemistry ; ultrastructure ; Temperature ; Water Pollutants, Chemical ; chemistry

OBJECTIVETo investigate the changes of guinea pig heart electrophysiological properties caused by increasing left ventricular preload, and to assess the effects of tetradrine on these changes.

METHODWorking model preparation of guinea pig hearts in vitro was used, and the preload of left ventricle was increased by adjusting the prefusion pressure of left atria. The changes of heart electrophysiologic parameters including monophasic action potential duration (MAPD90), monophasic action potential amplitude (MAPA), effective refractory period (ERP) and ventricular fibrillation threshold (VFT) were observed before and after altering the preload of left ventricle, and compared in the absence and presence of tetradrine, streptomycin or verapamil.

RESULTThe rising of left ventricular preload led to shortening of MAPD90, ERP, and to descent of MAPA, VFT (all P<0.01). Both Tetradrine and streptomycin inhibited these changes of heart electrophysiologic parameters caused by elevation of left ventricular afterload (all P<0.01). In contrast, verapamil had no effects on the preload-related electrophysiological changes (all P>0.05).

CONCLUSIONElectrophysiologic changes caused by increasing left ventricular preload may be inhibited by tetrandrine, through inhibition of stretch-activated ion channels.

Action Potentials ; drug effects ; Alkaloids ; isolation & purification ; pharmacology ; Animals ; Anti-Arrhythmia Agents ; isolation & purification ; pharmacology ; Benzylisoquinolines ; isolation & purification ; pharmacology ; Calcium Channel Blockers ; pharmacology ; Drugs, Chinese Herbal ; isolation & purification ; pharmacology ; Female ; Guinea Pigs ; Heart ; physiology ; In Vitro Techniques ; Male ; Plants, Medicinal ; chemistry ; Refractory Period, Electrophysiological ; drug effects ; Stephania tetrandra ; chemistry ; Streptomycin ; pharmacology ; Ventricular Function, Left ; drug effects ; Verapamil ; pharmacology

Objective To explore the role of apoptosis of neutrophils and vascular endothelial cells and changes of relative cytokines and thrombotic factors in the pathogenesis of traumatic sepsis at the advanced stage.Methods The venous blood was collected from the patients with traumatic sepsis at advanced stage and traumatic patients without sepsis and healthy subjects.The peripheral hlood mononu- clear cells(PBMC)and neutrophils were isolated and cultured.The apoptosis of neutrophils and vascular endothelial cells was assayed,and the level of IL-4,IL-10 in PBMC culture supernatants were deter- mined,and the tissue factor(TF)and vW factor(vWF)of peripheral plasma were measured.Results The percentages of apoptosis of neutrophils and numbers of apoptotic circulating vascular endothelial cells were higher than that of traumatic patients without sepsis and healthy controls significantly.And the levels of anti-inflammatory cytokines IL-4,IL-10 and thrombotic factors TF,vWF in traumatic sepsis were elevated than that of traumatic patients without sepsis and controls too.Conclusion Immune suppres- sion and abnormal thrombotic state may be one characteristic of traumatic sepsis at advanced stage,which perhaps involveds in the pathogenesis of traumatic sepsis at the advanced stage and multiple organ dys- function syndrome.

Objective To explore the therapeutic efficacy of levofloxacin combined with anti-tuberculosis drugs and thoracic catheterization for the treatment of tuberculous pleuritis.Methods Patients who were admitted to Departments of Infectious Diseases of Hanzhong Central Hospital and Ankang Central Hospital between February 2014 and August 2016 for initial treatment of tuberculous pleuritis were included in the study,they were divided into groups A,B,C and D.Group A received 2HRZE + 7HR regimen combined with conventional drainage;group B received 2HRZE+ 7HR regimen combined with thoracic catheterization;group C received 2HRZEV + 7HR regimen combined with thoracic catheterization;group D received 2HRZEV + 10HR regimen combined with thoracic catheterization.groups B,C and D received thoracic catheterization,normal saline 20mL and urokinase 100,000U were given through the drainage tube.Results A total of 172 patients with newly diagnosed tuberctlous pleurisy were received for treatment.There were 45,53,38,and 36 cases in group A,B,C,and D respectively.The total effective rate of therapy for pleural effusion in group A was lower than that in group B(64.44％ vs 90.57％,x2 =9.863,P＜ 0.05);after two month therapy,total effective rate of therapy for pleural effusion in group B was lower than that in group C (18.87％ vs 39.47％,x2 =4.716,P＜0.05);at the end of therapy,total effective rate in group C was lower than that in group D (60.53 ％ vs 83.33 ％,x2 =4.731,P＜0.05).Conclusion For initial treatment of patients with tuberculous pleuritis,2HRZEV + 10HR antituberculosis regimen combined with thoracic catheterization and urokinase infusion can significantly improve the clinical symptoms and recovery rate of tuberculous pleuritis,facilitate drainage of pleural effusion and prevent pleural thickening,adhesion and encapsulation.

Adult ; Female ; Fractures, Bone ; complications ; Hernia, Diaphragmatic, Traumatic ; diagnosis ; etiology ; Humans ; Pelvic Bones ; injuries

OBJECTIVETo investigate the association of -689C/T polymorphism in the peroxisome proliferator-activated receptor-gamma2 (PPARgamma2) promoter with myocardial infarction (MI).

METHODSThis is a case-control study, which included 194 subjects with MI and 693 subjects without MI in nondiabetic Han population in Wuhan. Polymerase chain reaction-restriction fragment length polymorphism was used to determine the -689C-->T substitution.

RESULTSThe CC,CT, and TT genotype frequencies of -689C/T polymorphism were 88.1%,11.9%,and 0.0 in MI patients and 93.1%,6.6%,and 0.3% in controls, respectively (CC vs. CT+TT, P=0.025). The -689T allele was an independent risk factor for MI (OR=2.125, 95%CI: 1.206-3.744, P=0.009) after adjusting for age,sex,waist circumference,body mass index, smoking, alcohol drinking, physical activities, systolic blood pressure, diastolic blood pressure, fasting blood glucose, total cholesterol, triglyceride, level. The -689T allele carriers had significantly higher TC levels than noncarriers [(5.05+/-1.16) mmol/L vs. (4.78+/-1.05) mmol/L, P=0.004] in the total population.

CONCLUSIONThe PPARgamma2 promoter -689C/T polymorphism is associated with an increased risk of MI.

Adult ; Aged ; Alleles ; Case-Control Studies ; Female ; Genotype ; Humans ; Logistic Models ; Male ; Middle Aged ; Myocardial Infarction ; genetics ; PPAR gamma ; genetics ; Polymorphism, Single Nucleotide ; Promoter Regions, Genetic ; genetics ; Risk Factors