The effects of acute cyanide intoxication on the monoamine transmitters of the brain of the rats were observed.The level of dopamine (DA),norepinephrine(NE),serotonin (5-HT),and 5-hydroxyindoleacetic acid (5-HIAA) in the rat brain was measured 3,5,10,30,45 and 60 minutes after the animals were poisoned with intraperitoneal injection of NaCN.It was found that the level of the 4 monoamine transmitters was doseage-dependentty decreased and a lower dosage of 2.36 mg/kg of NaCN increased the level of DA and NE at the 45th minute after intoxication.It was also found that cyanide-induced convulsions were accompanied with a significant decrease of brain monoamine transmitters.It is believed that the changes of the level of mona-mine transmitters in the brain may play a role in the central intoxication of cyanide.

Objective To explore the lesion mechanism and the apoptosis related protein changes of kidney in rat suffered from obstructive jaundice. Methods Choledocho-ligation methods was used to create rat obstructive jaundice model. Six rats in the normal control group and thirty rats of experiment group were observed at day 1, 3, 6,10 and 14 after rat model establishment. HE staining for kidney pathological changes, TUNEL staining for cell apoptosis, SABC for apoptotic related proteins of survivin and bax, xanthine oxidase method for SOD activity and thiobarbiturate method for MAD content were carried out. Results Renal tubular epithelial cell necrosis, cell shedding and aggregation were the main pathological changes in the experiment group. In the experiment group, the apoptosis ratio increased significantly, and reached the peak of (25.2?2.8)% on postoperative day 14. The relative gray value of survivin in the experiment group decreased significantly and of bax increased significantly. The plasma SOD activity in the normal group was (193.6?23.5) U/L, but it in the experiment group decreased significantly. The plasma MDA content and the endotoxin level in the experiment group increased significantly. Conclusion Cell apoptosis is one of the lesion mechanisms of kidney in rats suffered from obstructive jaundice. The down-regulation of survivin and the up-regulation of bax may be the biological factor in the occurrence of apoptosis. The increasing of free radical and endotoxin are important factors in the kidney lesion.

Objective To investigate the effects of respiratory training on motor function in patients with acute stroke. Methods From 2012 to 2014, 80 patients with acute stroke were randomly assigned into treatment group and control group equally. The control group re-ceived routine rehabilitation training, while the treatment group received respiratory training in addition. All the patients were assessed with Fugl-Meyer Assessment (FMA) and modified Bathel Index (MBI) before and eight weeks after treatment. Results The scores of FMA and MBI improved more in the treatment group than in the control group (t>3.938, P<0.001) after treatment. Conclusion Respiratory training may promote the recovery of motor function in acute stroke patients.

A highly sensitive and selective DNA biosensor is described based on the fluorescence quenching ability of MoS2 nanosheet and exonucleaseⅢ( ExoⅢ) assisted dual-signal amplification. In this sensor, the fluorescence probes ( HP1 and HP2 ) cannot be degraded by Exo Ⅲdue to the 3 '-termini protrusion and thus are adsorbed on the surface of MoS2 nanosheets, which will result in the quenching of MoS2 nanosheets toward the probes and induce a low fluorescent signal. The presence of the target DNA leads to the desorption of probes on the surface of MoS2 nanosheets due to the hybridization toward probes, generating many fluorescent fragments by Exo Ⅲdigestion and inducing dual-signal amplification. This method can improve the sensitivity and detection limit compared with single amplification method, and shows excellent selectivity in the discrimination of single base mismatched targets. On the basis of the significantly high sensitivity, the developed biosensor can be potentially extended to detect various DNA targets with excellent sequence selectivity.

Objective To summarize the strategies of treatment and investigate the risk factors affecting the survival of patients with hepatic cancer recurrence and metastasis after liver transplantation.Methods The clinical data of 99 patients with hepatic cancer recurrence and metastasis after liver transplantation who were admitted to the Southwest Hospital of Third Military Medical University from January 1999 to September 2011 were retrospectively analyzed.Of the 99 patients,7 patients who did not meet the criteria were excluded from the study,and 92 patients were enrolled in the study.All patients were divided into single therapy group (18 patients) and combined therapy group (74 patients).The study was reviewed by the ethics committee,and all the patients signed the informed consent form.The survival time of the 2 groups was compared,and the risk factors affecting the survival time was analyzed.All data were analyzed using the t test,chi-square test or by calculating the Fisher exact probability.The survival curve was drawn using the Kaplan-Meier method,and the survival time was compared by the Log-rank test.Factors influencing the prognosis were analyzed using the multivariate linear regression analysis.Results The survival time of patients in the single therapy group and the combined therapy group after hepatic cancer recurrence and metastasis were (5.5 ± 1.1) months and (8.5 ± 1.6) months,respectively,with a significant difference between the 2 groups (Log-rank value =7.489,P ＜ 0.05).The survival time were (7.9 ± 1.5) months for patients in TNM Ⅱ and Ⅲ A,and (7.0 ± 1.3) months for patients in TNM Ⅲ B and ⅣA,with significant difference between the 2 groups (Log-rank value =2.567,P ＜0.05).The survival time of patients with moderately or well differentiated tumors after tumor recurrence and metastasis was (8.1 ± 1.5) months,which was significantly longer than (7.2 ± 1.4)months of patients with poorly differentiated tumor (Log-rank value =2.749,P ＜ 0.05).TNM stage,tumor differentiation,Milan criteria,great vessel invasion were independent factors affecting the survival of patients with hepatic cancer recurrence and metastasis (t =2.610,3.132,4.378,2.258,P ＜ 0.05).Conclusions Combined therapy can significantly prolong the survival time of patients with hepatic cancer recurrence and metastasis.Earlier hepatic cancer recurrence and metastasis after liver transplantation result in a shorter survival time.TNM stage,tumor differentiation,great vessel invasion and Milan criteria are risk factors affecting the survival of patients with hepatic cancer recurrence and metastasis after liver transplantation.

Objective　To observe the changes of the concentration of Ca2+, contents of cAMP, CaM and activity of Ca2+/CaM-PK II in pheochromocytoma PC12 cells after combined soman and hypoxia injury. Methods　The changes of ［Ca2+］, and activity of CaM, cAMP and Ca2+/CaM-PK II in PC12 cells were studied after combined soman and hypoxia injury with radioimmunoassay. Results　The changes of ［Ca2+］, the contents of CaM, cAMP were significantly higher in hypoxic and soman intoxicated group than in soman intoxicated group and control group under hypoxia; but the activity of Ca2+/CaM-PK Ⅱ were significantly decreased. Conclusion　［Ca2+］, CaM, cAMP and Ca2+/CaM-PK Ⅱ exert important role in the damage of PC12 after combined soman and hypoxia injury.

Cold perfusion of liver can significantly alleviate the ischemia-reperfusion injury caused by hepatic blood flow occlusion. We have modified the technique of cold perfusion of liver and applied it to total pancreatectomy for patients with pancreatic head carcinoma complicated with metastasis to the body and tail of pancreas and with portal invasion. After skeletonization of the hepatoduodenal ligament, the amputation of the portal vein and blockage of the superior mesentoric vein were performed before portal perfusion. Meanwhile, pancreatic head resection, duodenectomy, subtotal gastrectomy and partial resection of the superior mesenteric vein and portal vein were carried out. Superior mesenteric vein and portal vein bypass grafting was achieved with artificial vessels. The digestive tract was reconstructed after it was freed of the spleen and resection of the body and tail of pancreas to the left side of superior mesenteric vein, greater omentum and intestine from the end of the colon to splenic flexure of colon. The patient was followed up for 3 months, and the general condition was good, although diarrhea frequently occurred. No tumor metastasis occurred.

Objective To investigate the survival condition of the liver transplant recipients and determine the factors which influence the long time survival. Methods Retrospective study of the follow-up data of the orthotopic liver transplantation recipients during 1999-2009 was performed.The survival rate of different primary disease was analyzed respectively. The recurrence of the primary disease, mortality and morbidity was also analyzed. Results 331 recipients were follwed up. The follow-up duration ranged from 8-120 months. The 1-, 3-, 5-, and 10-year survival rate of patients with benign end-stage liver disease was 86 %, 85 %, 83 %, and 83 %, respectively. There was no difference in the long- term survival rate between the patients with hepatitis B virus (HBV)-related cirrhosis and severe liver failure. The 1-, 3-, 5-, and 10-year survival rate of patients with HCC matching Millan criteria was 96 %, 87 %, 87 %, and 87 0%, while those of HCC exceeding Millan criteria were 42 % ,26 % ,24 % ,24 % resepectively. There was significant difference between them at the same period (P＜0. 01). The total recurrent rate of HCC recipient was 54. 3 %, and that of HCC matching and exceeding Millan criteria was 4.3 % and 72. 7 0% respectively (P＜0. 01 ). Tumor recurrence was the main cause of death of the malignancy. The HBV recurrent rate was 6. 0 0%, and all the cases were controlled by changing the antivirus regimen. The morbidity of billiary complication was 11.8 %, and intrahepatic biliary stricture was the most common type. CNIs-related renal impairment morbidity was 8. 2 % and the damage was reversible in condition of early diagnosis and treatment. Conclusion Orthotopic liver transplantation is an effective and safe treatment for end stage liver disease. The LTx recipients can get long time survival with perfect quallity life under proper medical supervision.

Objective To investigate the long-term survival of the recipients with liver malignant tumors receiving liver transplantation and determine the risk factors of tumor recurrence after liver transplantation.Methods The follow-up data of the orthotopic liver transplantation for liver malignant tumors during 1999-2010 were retrospectively analyzed.The survival rate of different pathological tumor types was analyzed respectively.The tumor recurrence rate,mortality and morbidity,and the risk factors of the tumor recurrence were also analyzed.Results 170 recipients were followed up.The follow-up duration ranged from 8-132 months.The general 1-,3-,5-,10-year survival rate was 52 %,38 %,36 %,and 36 % respectively.The 1-,3-,5-,10-year survival rate of HCC matching Millan Criteria was 96 %,87 %,87 %,87 %,while that of HCC exceeding Millan Criteria was 42 %,26 %,24 %,24 % respectively(P<0.05).Tumor recurrence was the main course of the death during follow-up period(92.5 %).The recurrence rate of HCC matching and exceeding Millan Criteria was 10.2 %,and 68.4 % respectively(P<0.05).Among the recipients exceeding Millan Criteria,the recurrence rate of HCC with and without blood vessel invasion was 95.3 %,55.9 % respectively(P<0.05).Radiofrequency ablation before transplantation could decrease the risk of tumor recurrence post-transplantation(P=0.039,OR=0.293),while the high HBV-DNA load (>104 copy/L)was the risk factor of tumor recurrence.Conclusion Orthotopic liver transplantation is an effective and safe treatment for hepatocellular carcinoma matching Millan criteria.Blood vessel invasion is regarded as the contraindication of the liver transplantation of HCC.RF is an effective bridging therapy for the HCC patients,and anti-virus therapy is important during transplant waiting period.

Ex-vivo liver resection is developed based on liver transplantation and technique of cold preservation of organs.It overcomes the shortcomings of time limit of warm ischemia and high technique demand of hepatectomy of tumors located at critical sites.A 58-year-old woman with hepatocellular carcinoma located close to the middle hepatic vein combined with invasion of right hepatic vein was admitted to Southwest Hospital.Because of the critical tumor site,conventional liver resection Wag assessed as impossible.Ex-vivo liver resection was performed,and a vessel patch from an organ wag harvested to repair the defect of the right hepatic vein,and then the liver remnant was subsequently autotransplanted.After operation,the patient recovered smoothly without venous outflow complication.Bile leakage wag observed on postoperative day 23,and the maximnm volume of intraperitoneal drainage wag 200 ml per 24 hours.Endoscopic nasobiliary drainage Was performed and the volume of intraperitoneal drainage gradually decreased to none.Liver function of the patient was back to normal and with no tumor recurrence at the end of 6 months of follow up.Ex-vivoliver resection is beneficial to patients with centrally located hepatocellular carcinoma with the involvement of hepatic vein and inferior vena cava.