Acute Disease ; Adult ; Chromatography, Gas ; Female ; Humans ; Lung ; chemistry ; Phosphines ; analysis ; blood ; poisoning

Objective To analyze the injury features of the wounded in the bullet train crash in July 23,2011 in Wenzhou of Zhejiang and explore treatment experience.Methods A total of 177 cases who were injured or died in the 7.23 Wenzhou bullet train crash were involved in the study.The age,gender,injury types,injury regions and injury severity were analyzed by using Trauma Database System V3.0 ( produced by China Trauma Data Center of Third Military Medical University). Results A total of 137 cases were admitted to our hospital within 24 hours after the bullet train crash in Wenzhou.There were 76 males and 61 females,with no significant difference.Of the 137 cases,136 survived and one died after medical treatment.The major injury types included impact injury,crush injury and heavy weight falling injury.Among the 136 survivors,108 cases were with multiple injuries,accounting for 79.4％.The most common injury region of the survivors was the chest,followed by the head and limb.The minimum trauma index (TI) was 5 points and the maximum 27 points.There were 4 cases(3.7％ )with TI ≤9 points,86 (79.6％) with 10-16 points and 18 (16.7％) with ≥ 17 points.Of all,78 cases (72.2％) had ISS score ＜ 16 points and 30 (27.8％) had ≥16 points.The minimum ISS was 3 points and maximum 75 points.There were 40 deaths including the one died after medical treatment,who were all with multiple injuries,with head injury the main cause.ConclusionsThe causes of the bullet train crashes are complicated,with high incidence of multiple injuries.The injury severity is varied,but the overall situation is not serious.Distribution of common injury regions is significantly different between the wounded and the dead.Injury triage,patient transfer and specialist treatment of the wounded should be carried out appropriately during the initial stage of medical rescue based on those injury features after the bullet train crashes.

Objective To investigate the diagnostic and prognostic value of neutrophil-to-lymphocyte rate ( NLR) in acute pancreatitis related acute kidney injury patients .Methods Peripheral blood specimens and clinical information of 98 acute pancreatitis patients in Wenzhou Center Hospital were collected .The WBC, neutrophils , lymphocytes were detected and NLR were calculated when they were admitted .The patients were divided into two groups by their NLR and whether they were with AKI respectively .Besides, ALT, Hct, TC, TG, blood calcium concentration , serum creatine and urea nitrogen , C reactive protein were detected and patients′APACHEⅡ score were also recorded to analyze the difference between the two groups .Results There is no significance in the age , BMI, Hct, TG, TC, ALT and blood calcium between AP patients with and without AKI.The blood creatinine, BUN, CRP, APACHEⅡscore were (395 ±122)μmol/L, (28.2 ±5.2) mmol/L, (34.0 ±8.2)mg/L, (11.5 ±3.8) score, respectively in AP patients with AKI, and which were (79 ±17 )μmol/L, ( 7.3 ±2.0 ) mmol/L, ( 14.8 ±2.9 ) mg/L, ( 6.9 ±2.4 ) score, respectively in AP patients without AKI.The blood ALT, blood creatinine, BUN, CRP, APACHEⅡscore were (257 ±76)U/L, (159 ±62)μmol/L, (20.5 ±6.6)mmol/L, (24.8 ±5.5)mg/L and (12.4 ±4.6) score in the patients with higher NLR respectively , and which were ( 165 ±30 ) U/L, ( 98 ±23 )μmol/L, ( 14.3 ±5.2 ) mmol/L, (19.5 ±3.0)mg/L and (5.4 ±2.1) score in the patients with lower NLR respectively .NLR was 4.97 ±0.19 in AP patients with AKI, and was 9.62 ±0.81 in AP patients without AKI.The difference between the two groups was significant(P=0.0001).The area under ROC curve of diagnosing AP by NLR was 0.895 (95%CI 5.75).the sensitivity was 89.5%and the specificity was 77.2% when using 5.75 as the cut-off value to diagnose AP related AKI with NLR .Conclusions NLR can be a potential predictive index of the severity and relate to renal function in acute pancreatitis related acute kidney injury patients .

The culture medium and cultural conditions of solid-state fermentation of Streptomyces Menmyco-93-63 were tested in this study. The suitable medium which contains rice, sorghum, millet bran, and rice hull with the proportion of 2:2:3:3 was developed for the spore production of Streptomyces Men-myco-93-63 using single substrate screening, mixture substrate screening and orthogonal experiments, and the sporulation was up to 2.52?109 CFU/g. And then, initial charge, initial ratio of water to solid, inoculating quantity, and culture temperature impact to sporulation of Streptomyces Men-myco-93-63 were tested. The favorite cultural conditions are developed as the following: the initial charge is 15 g in 500 mL Erlenmeyer flask; initial ratio of water to solid is 1.7:1.0 (V/W, rice hull excluding), inoculating quantity is 7 mL, culture temperature is 28℃.

This study was aimed to diffuse the lung and promote urination for the observation of cardiopulmonary re-lated index change of cor pulmonale rats to further explore the treatment effect on the pulmonary function, pulmonary arterial hypertension (PAH) and the influence of right heart hypertrophy of rats, in order to further illustrate the ef-fect of diffusing the lung and promoting urination for cor pulmonale. Sixty Wistar rats were randomly divided into the control group, model group and Xiao-Qing-Long decoction (XQLD) group with 20 rats in each group. The AniRes2003 animal lung function analysis system was applied to measure the pulmonary function of rats. And the multi-guide physiological recorder was used in the recording of the pulmonary artery pressure of rats. The conven-tional weighing method was applied to calculate and obtain the change of right heart hypertrophy. The results showed that compared to the control group, symptoms in the model group became severe obviously, which include reduced activity, slow movement and occasional airway sputum sound, and the right heart hypertrophy index of the model group increased obviously (P < 0.01). Compared to the model group, the pulmonary function and pulmonary artery pressure of the XQLD group have obvious difference (P< 0.05). It was concluded that to diffuse the lung and pro-mote urination can effectively improve the pulmonary function, PAH and the right heart hypertrophy index of rats with cor pulmonale (fluid retention). The effect of this method is definite in the treatment of cor pulmonale.

There are two serious obstacles to tumor immunotherapy. Firstly, the immune response of the tumor is seriously reduced due to immunosuppressive tumor microenvironment (ITM) and low immunogenicity of tumor. The second obstacle is the dense and complex heterogeneous structures, which seriously prevent the nanoparticles (NPs) from penetrating deeper into tumor tissue. Immunogenic cell death (ICD) induced by doxorubicin (DOX) is an effective method to enhance tumor immune activity. However, interferon-γ (IFN-γ) secreted by cytotoxic T lymphocytes (CTL) after ICD induction would increase the expression of indoleamine 2,3-dioxygenase 1 (IDO1) and enhance ITM. IDO1 siRNA would reduce the expression of IDO1 protein, regulate the tumor immunosuppressive microenvironment and regulate ITM, so as to enhance the ICD effect of DOX. In this paper, a novel charge conversional, particle size reduction and highly penetrable NPs based on a pH sensitive copolymer poly(ethylene glycol)-poly-L-lysine-2,3-dimethylmaleic anhydride (mPEG-PLL-DMA, PLD) and polyamidoamine (PAMAM) dendrimers to achieve deep delivery of tumor tissue. DOX and IDO1 siRNA were encapsulated to achieve efficient tumor immunotherapy. Preparation and cell level experiments showed that PLD material had significant pH sensitivity. Results of 3D tumor penetrable experiment in vitro showed that adding the pH sensitive material PLD significantly improved the permeability of the preparation. In addition, 4T1 tumor model was established for BALB/c mice and all animal experiments were displayed in according with the requirements of the Animal Experiment Ethics Committee of Shenyang Pharmaceutical University. The results of in vivo efficacy experiments and tissue experiments evaluated that IDO1 siRNA significantly improved the ICD effect owing to DOX, so as to significantly inhibit tumor growth.

Objective To assess the effect of exogenous N-methyl-D-aspartate (NMDA) on passive avoidance learning and memory in adult rats. Methods Slow-release films containing different concentrations of NMDA were prepared and placed on the surface of the rat brain through frontoparietal craniectomy. Three weeks after the operation, the results of step-through test and NMDA receptor activity in the ventromedial prefrontal cortex (vmPFC) and the anterior cingulate cortex (ACC) were compared between the groups. Results No significant differences were found in the latency time (P=0.846) and error frequency (P=0.792) in the step-through test, or in NMDA receptor activity in the vmPFC and ACC (P=0.546) among the groups 3 weeks after the operation. The NMDA receptor activity in these regions, however, tended to decrease with the increment of NMDA concentration in the slow-release films. Conclusion Exogenous NMDA does not produce obvious effect on passive avoidance learning and memory in adult rats. The results of this experiment may provide the basis for further studies of the effects of NMDA in altering the neural plasticity in the impaired brain.

OBJECTIVETo provide further research with literature evidence of the variety origin, traditional effect and dosage.

METHODTextual research on medicinal works of past dynasties.

RESULTThe origin plants are Pueraria lobata, P. thomosonii and P. eduli. Its present effect is the same as ancient literature. However the fresh juice of the plant used for the treatment of bitter by mad dog and aborticide as literature recorded should be proved by further researches. The dosage is different among past dynasties.

CONCLUSIONAs one of the often used Chinese materia medica, Gegen has a bright prospect.

Anti-Inflammatory Agents, Non-Steroidal ; isolation & purification ; therapeutic use ; Antidiarrheals ; isolation & purification ; therapeutic use ; Drugs, Chinese Herbal ; isolation & purification ; therapeutic use ; Fever ; drug therapy ; Humans ; Phytotherapy ; methods ; trends ; Plants, Medicinal ; chemistry ; classification ; Pueraria ; chemistry ; classification

OBJECTIVETo evaluate the role of intravascular ultrasound (IVUS) imaging in the diagnosis of aortic dissection.

METHODSEighty-two patients with aortic dissection were admitted. The role of IVUS was evaluated and compared with CT, MRI, transthoracic echocardiography (TTE), transesophageal echocardiography (TEE), Duplex scanning and digital subtraction angiography (DSA).

RESULTSThe different laminar appearance of the outer wall of the true and false lumen, characteristic alterations in the true and false lumen junction and the thrombosis in the false lumen detected by IVUS were useful to differentiate the true from the false lumen. Static and dynamic narrowing, causing visceral ischemia could be detected by IVUS imaging. The detection rate of entry site by IVUS was 100%, higher than CT (28%), MRI (22%), TTE (2%) and TEE (61%), P < 0.01, having no statistic difference with DSA (88%). The detection rate of the distal end of the dissection by IVUS was 100%, higher than Duplex (21%), P < 0.01, but had no statistic difference as compared with CT (89%) and MRI (86%). The detection rate of visceral arteries by IVUS was 98%, higher than CT (56%), MRI (57%), Duplex (17%) and DSA (66%), P < 0.01. The aortic diameter measured by IVUS was correlated well with CT measurement (r = 0.94, P < 0.01).

CONCLUSIONSA full picture of aortic dissection can be obtained using IVUS imaging. It has an advantage over routine examinations in detecting visceral artery origin and clarifying visceral ischemia causes.

Adult ; Aged ; Aneurysm, Dissecting ; diagnostic imaging ; Aorta ; diagnostic imaging ; Aortic Aneurysm ; diagnostic imaging ; Female ; Humans ; Male ; Middle Aged ; Ultrasonography, Interventional

UNLABELLEDOBJECTIVE Crosslink decellularized canine carotid artery allograft by EDC [1-3-(dimethylamino)propyl-3-ethylcarbodiimide methiodide] and evaluate the biocompatibility of it.

METHODSUse the multi-step detergent-enzyme method to construct decellularized canine carotid artery allograft and cross-link it by EDC with the weight ratio of decellularized artery to EDC 1:1 and 1:2. Evaluate the biocompatibility of it by the cytotoxical MTT test and the rat subdermal bury test.

RESULTSDecellularized canine carotid artery cross-linked by EDC has a lower degradation rate treated by collagenase type II, the result of MTT test show that the EDC cross-linked decellularized artery has no cytotoxity and the rat subdermal bury test show that crosslinking greatly enhance the ability of decellularize artery to resist the enzyme degradation and lower the immune reaction. The more the artery was cross-linked , the more effects it has.

CONCLUSIONSDecellularized canine carotid artery cross-linked by EDC has fairly good biocompatibility and ability to resist the collagenase degradation.

Animals ; Biocompatible Materials ; Carbodiimides ; Carotid Artery, Common ; transplantation ; Cross-Linking Reagents ; Dogs ; Female ; Male ; Materials Testing ; Rats ; Rats, Sprague-Dawley ; Tissue Engineering