Objective To investigate the effect of different dose dexmedetomidine on reducing agitation after sevoflurane anesthesia in patients underwent repair of indirect inguinal hernia.Methods 105 cases of ASA Ⅰ ～ Ⅱ received operation with inhalation of 3％ sevoflurane to induce anesthesia,and then randomly divided into three groups,35 cases in each group.The control group injected with 0.9％ sodium chloride,observation 1 group injected dexmedetomidine 0.15μg/kg,observation 2 group injected dexmedetomidine 0.30μ g/kg.Then placed oropharynx airway ventilation,caudal block.Anesthesia was maintained with 1.2％ sevoflurane,maintain its independent ventilation.Hemodynamic and respiratory changes of the children were recorded.Time to eye opening(TEO) at the end of anesthesia was also recorded.Results Three groups of children had similar operation process.TEO of the control group was (8.45 ± 4.02) min,observation 1 group was (9.23 ± 5.03) min,observation 2 group was (10.81 ± 4.06) min (t =1.23,1.64,all P ＞ 0.05).The incidence rate of agitation of the control group was 42.8％,that in the observation 1 group and observation 2 group was 20％,8.6％.Observation 1 group was significantly lower than that of control group (x2 =3.72,P ＜ 0.05),observation 2 group was significantly lower than that of control group and observation 1 group (x2 =5.14,4.27,all P ＜ 0.05).Conclusion The dose of dexmedetomidine 0.3 μg/kg administered after induction of anesthesia could reduce the postsevoflurane agitation in children and have no adverse effects.

AIM: To study the effect of proliferating cell nuclear antigen (PCNA) expression on alveolar macrophages (AM) and Fas/FasL expression on alveolar type Ⅱ epithelial cells induced by lipopolysaccharide (LPS) in smoking rats. METHODS: Immunohistochemistry SABC and immunofluorescence techniques were used to examine PCNA expression on AM and Fas/FasL system expression on alveolar type Ⅱ epithelial cells in smoking rats of different stages induced by LPS. RESULTS: The AM PCNA expression in smoking rats reached the highest level after 3 or 4 months. The AM PCNA expression in every groups stimulated by LPS significantly increased ( P

the two drugs than using one alone.

Objective To investigate the effect of nimodipine (ND) injecting into cisterna magna on the mitochondrial pathway in hippocampus in rabbit model of subarachnoid hemorrhage (SAH). Methods Eighteen New Zealand white rabbits were randomly allocated to Sham group, SAH group and ND group, six in each group. All the animals underwent operation under anaesthesia. One mL/kg autologous non-heparinized arterial blood was injected into cisterna magna in SAH group and ND group, and the same dosage of saline was injected into cisterna magna in Sham group. Thirty minutes after injection, 1 mg/kg nimodipine was injected into cisterna magna in ND group, and equal-volume of saline was injected into cisterna magna in Sham group and SAH group. All the animals were assessed for the grade of food intake and neurological impairment, and rats were killed 72 hours after SAH. Their hippocampus were processed for detecting the expressions of Bcl-2, Bax, Caspase-3 and Cyt-C mRNA by qRT-PCR. The protein expressions of Caspase-3 and Cyt-C were detected by Western blot assay. Results Compared with the Sham group, there were lower grade of food intake, varying degrees of neurological impairment and lower ratio of Bcl-2/Bax, while the mRNA levels of Bcl-2, Bax, Caspase-3 and Cyt-C and protein levels of Caspase-3 and Cyt-C showed elevated expressions in SAH group and ND group (P<0.05). Compared with SAH group, there were no significant differences in the score of food intake and neurological impairment in the ND group ( P>0.05). There were higher ratio of Bcl-2/Bax and expression levels of Bcl-2 mRNA and lower expression levels of Bax mRNA, Caspase-3 and Cyt-C mRNA and proteins in ND group than those in SAH group (P<0.05). Conclusion Nimodipine plays a protective role in inhibiting the activity of mitochondrial pathway in hippocampus after subarachnoid hemorrhage.

Objective To evaluate the efficacy of preoperative regional intra-arterial chemotherapy (RIAC) in the treatment of resectable pancreatic head carcinoma. Methods The clinical data of 50 patients with resectable pancreatic head carcinoma who had been admitted to the Research Institute of Pancreatic Diseases of Fudan University from December 2006 to July 2007 were retrospectively analyzed. Patients were randomly divided into2 groups (n =25 in each group): patients in group A were treated with preoperative RIAC followed by regional pancreaticoduodenectomy, and patients in group B were treated with surgical procedure routinely. The lymphatic metastases in the 50 specimens of pancreatic head carcinoma were detected by histological examination with hematoxylin and eosin (HE) staining, and lymphatic micrometastases were detected by immunohistochemical method with staining of cytokeratin AE1/AE3 in 10 specimens with negative HE staining of the lymph nodes in each group. Results There was no significant difference in the incidence of complications, the length of hospital stay and the 1-, 2-year survival rates between the 2 groups (χ2 = 0.12, 2.88, P > 0.05). The incidence of positive lymph node metastasis in group A was 7.1% (52/734), which was significantly higher than 22.1% (118/532) in group B (χ2 = 60.01, P < 0.05). The incidence of lymphatic micrometastasis was 9.4% (30/319) in group A, and 9.1% (23/252) in group B, with no statistical difference between the 2 groups (χ2= 0.01, P > 0.05). Conclusions Preoperative RIAC is helpful in improving the prognosis of patients with resectable pancreatic head carcinoma by reducing the incidence of lymphatic metastasis and decreasing tumor stage.

Objective To investigate the clinical characteristics, diagnosis, treatment and prognosis of pancreatic gastrointestinal stromal tumor (GIST). Methods We reported a case and reviewed the medical literature on pancreatic malignant GIST. We searched the Pubmed and main domestic database. The clinical data of the reported cases were studied, and their predictive factors for postoperative recurrence and metastasis were analyzed. Results Between January 1980 and July 2010, 16 cases of pancreatic GIST were reported. There were 7 males and 9 females, with a median age pf 56.5 (31-72)years. The clinical symptoms were nonspecific. The main presentation was upper abdominal pain or discomfort. A preoperative diagnosis was suspected on radiological examination. The tumor mainly appeared as a well-defined solid-cystic mass. Irregular enhancement appeared in the circumferential and solid portion of the tumor on enhanced CT scan sequences. The pancreatic and biliary ducts were rarely dilated. Endoscopic ultrasound guided fine needle aspiration cytology (EUS-FNA) was helpful in preoperative diagnosis. Of the 15 surgical patients, 14 underwent complete resection, while the remaining received cyst-jejunostomy. A correct diagnosis was made on histopathology and immunohisto-chemistry. On a mean follow up of 21 months (range, 1-60) in 14 patients, all patients were alive.Recurrence or metastasis occurred in 4 patients with tumors of high malignant potential. On univariate analysis, the only significant predictor for adverse outcome was mitoses≥10/50 HPF. Conclusions Pancreatic GIST is a rare tumor of relatively low malignant potential. It has a better prognosis than ductal adenocarcinoma. It is important to arrive at a correct diagnosis and treat the tumor with radical resection. Aggressive surgical resection is potentially curative. Imatinib is recommended in the treatment of patients with tumors with high malignant potential.

The paper analyzed the challenges for community-based rehabilitation of schizophrenic patients in China' s rural areas,from such six aspects as culture, prevention and control system for mental health, fairness of health resources allocation, shortage of specialists, confidence in treatment,and delay in rehabilitation. These studies aim at providing the government with decision making evidence for enacting rural mental health policies and taking effective intervention measures.

Objective To assess the value of multi-slice computed tomography angiography (MSCTA) in the preoperative detection of aberrant hepatic arteries in patients scheduled to undergo pancreaticoduodenectomy.Methods Patients with pancreatic and peri-ampullary tumors were preoperatively studied using contrast-enhanced abdominal CT angiography (CTA).The results on hepatic arterial anatomy were compared with those obtained from digital subtraction angiography (DSA) and on surgical findings.Results Eighty-one patients were included into this study.DSA was carried out in 29 patients to evaluate tumor resectability,and 66 patients received surgery.Anomalous hepatic arteries were detected in 17 (21％) patients on CTA.Thirteen (16.0％) patients had a single arterial variant,and 4 (4.9％) patients had two arterial variants.One patient each was seen in the Michels type Ⅳ,Ⅶ,and Ⅷ respectively,while 2 patients each were seen in the Michels type Ⅲ and Ⅴ respectively.Five patients were diagnosed as the Michels type Ⅵ,and four as the Michels type Ⅸ.One patient demonstrated a rare variant which was not included into the Michels classification.MSCTA had an accuracy of 100％,a sensitivity of 100％,and a specificity of 100％.Regarding the traceability scores of hepatic arterial segment,there were no statistically significant differences between MSCTA and DSA.Conclusions MSCTA is an effective imaging tool to assess arterial anatomical variation around the pancreatic head.It is non-invasive,and it provides valuable information on the peri-pancre atic vascular anatomy before pancreaticoduodenectomy.

Objective To identify the types of pulmonary complications after pancreaticoduodenectomy,and to discuss the prevention and management of these complications.Methods Clinical data of 165 cases of pancreaticoduodenectomy in our hospital were retrospectively analyzed.Pulmonary complications were identified,therapeutic effects were observed.Results The incidence rate of pulmonary complications was 19.4％ ( 32/165),case-fatality rate was 6.25％ (2/32),two patients died from pneumonia,respiratory failure and ARDS.Complications mainly included pneumonia 13.9％ (23/165),pleural effusion 4.2％ (7/165),atelectasis 3.6％ (6/165),pneumothorax 1.8％ ( 3/165 ),respiratory failure 2.4％ (4/165) and ARDS 1.2％ (2/165).Conclusion Pulmonary complications after pancreaticoduodenectomy are not rare,especially for pulmonary infection and most are hospital acquired pneumonia.To understand rules and particularity of respiratory physiopathological changes after pancreaticoduodenectomy is very important for patients to safely pass over the perioperative period.

Objective To clone and express the ns5a gene of hepatitis C virus(HCV) 1b strain DY.Methods By using the prokaryotic cell gene engineering,HCV ns5a gene was amplified with nested PCR from the plasmid HCV17 of HCV 1b strain DY full-length gene and inserted into the cloning pMD18-T vector.The cloned HCV ns5a gene was separated and subcloned into expression vector pET-28a and induced by IPTG in E.coli.BL21.The expressed product was identified by SDS-PAGE and Western-blot methods.Results Recombinant expression plasmid pet-28a-ns5a was constructed and expressed successfully.Conclusion HCV ns5a gene was cloned and expressed.This might be helpful for further studies on the nature and biological properties of the ns5a gene.