Objective To evaluate the efficacy of pressure-controlled volume-guaranteed (PCVVG) mode for lung protective ventilation in patients requiring one-lung ventilation (OLV) during thoracoscopic surgery.Methods Sixty patients,aged 50-70 yr,with body mass index of 18-26 kg/m2,of American Society of Anesthesiologists physical status Ⅰ or Ⅱ,scheduled for elective radical resection of esophageal cancer performed via video-assisted thoracoscope under general anesthesia,were divided into 2 groups (n=30 each) using a random number table:volume-controlled ventilation group (group V) and PCV-VG group (group P).The ventilator settings were adjusted,with a tidal volume 10 ml/kg and respiratory rate 10-12 breaths/min during two-lung ventilation,and with a tidal volume 6 ml/kg and respiratory rate 12-16 breaths/min during OLV.The inspiratory/expiratory ratio was 1 ∶ 2,pressure restriction was 35 cmH2O,and 33％ oxygen was inhaled at 2 L/min.The end-tidal pressure of carbon dioxide was maintained at 35-40 mmHg.Visual analog scale score was maintained ≤ 3 after operation.After admission to the operation room (T0) and at 1,3 and 7 days after operation (T1-3),forced vital capacity (FVC),forced expiratory volume in first second (FEV1),and maximal mid-expiratory flow (MMEF) were measured,arterial blood samples were collected for blood gas analysis,arterial carbon dioxide partial pressure and arterial oxygen partial pressure (PaO2) were recorded,and alveolar-arterial oxygen tension difference (PA-a O2) was calculated.Clinical Pulmonary Infection Score was assessed at T1,T2 and T3.The chest tube removal time and length of postoperative hospital stay were recorded.Results Compared with the baseline at T0,FVC,FEV1,MMEF and PaO2 were significantly decreased,and PA-aO2 was increased at T1-3 in the two groups (P＜0.05).Compared with group V,FVC,FEV1,MMEF and PaO2 were significantly increased,PA-aO2 and Clinical Pulmonary Infection Score were decreased,and the chest tube removal time and length of postoperative hospital stay were shortened at T1-3 in group P (P＜0.05).Conclusion PCV-VG mode can achieve lung protective ventilation,which is helpful in improving outcomes in the patients requiring OLV during thoracoscopic surgery.

Objective To investigate spiral CT,PET/CT and clinical manifestations in non-HIV infectious penicilliposis marneffei lung disease, to improve diagnostic level of this disease.Methods Imaging manifestations of 6 cases of non-HIV infectious penicilliposis marneffei confirmed by bronchofiberscope lung biopsy and/or pus culture were analyzed retrospectively All cases underwent chest CT,two had brain MRI,and two had PET/CT scan before treatment.Imaging appearances were observed and combined with clinical dates and literatures.Results Unilateral lung lesion was detected in 1 case,bilateral lungs lesions in 5 cases.Multiple patchy consolidation,stripe shadow in bilateral lungs or right lung were found in 3 cases, multiple nodes in 2 cases, mass with nodes in 1 case.Among 6 cases, 2 had septa interlobulare thickness,1 had tracheal fistula,2 had pericardium and pleura involvement,4 had bone destruction,1 had the brainand liver involvement.6 cases showed multiple lymphadenectasis,amalgamation and necrosis in bilateral hilar,mediastinaand the neck.2 had abdominal cavity and or retroperitoneal lymphadenectasis.On PET/CT,2 cases showed high uptake,and the range of SUV value were 1.4-13.9.Initial misdiagnosis by imaging was found in 5 cases.6 patients recovered after anti fungus treatment.Conclusion Imaging appearances of non-HIV infectious penicilliposis marneffei mainly reveals as multiple patchy consolidation,nodes and mass in bilateral lungs, all accompany with lymphadenectasis, many with bone destruction,lack of specificity, which needs lesion biopsy and pus culture to make confirmed diagnosis.

Objective To study face recognition rule of Chinese subjects during judging the differences of facial recognition of race,gender and their joint property.Methods Eye tracking technique and moving window experimental method were used.Results The present results showed that,in facial race recognition,gender recognition and joint property recognition,the key area of face recognition was eyebrow and eye.In face recognition process,the dominant area in face of information acquired was right facial area.The key brain area of facial cognition was right brain area.Conclusion The recognition performance of face racial recognition is the best than face gender recognition and joint property recognition.Asymmetrical perception effect in human face area is appeared in facial recognition.

The five flavours of traditional Chinese medicine(TCM)stand for five tastes,such as pungent,sweet,sour,bitter and salt.The five flavours not only stand for the actual tastiness of herbs,but also the effect characteristic of TCM according to traditional medical theory.So this kind of situation led to a disorder of the marking standardization of five flavours.So the authors think that we should mark herbs(or TCM)based on their true tastiness,and this way maybe help us to solve the problem and to research the relationship between the flavours and the effect of the herbs(or TCM).

ABCC8,KCNJ11,and GLUD1 gene mutations were investigated in a male patient with congenital hyperinsulinism and his parents were also investigated.A 1484 G＞A mutation was found in the 10th exon of ABCC8 gene in the patient,which leads to amino acid substitution at the 495 residue of the sulphonylurea receptor SUR1 protein.The patient's father also carried the same heterozygous inactive mutation,while the genotype of the mother was normal,indicating that the gene mutation of the patient was paternally inherited.According to that mutation,it is deduced that the patient may suffer from the focal type of congenital hyperinsulinism.

Humans ; MicroRNAs ; Occupational Medicine

TTI gene coding for Tsetse thrombin inhibitor was modified with E.coli bias codon and expressed in Escherichia coli with high efficiency.Recombinant protein was purified to more than 98% purity.Assay for enzyme activity determination was set up.The result showed that the fusion protein exhibited inhibiting activity for thrombin.Inhibitory rate of purified TTI was 73% when concentration of thrombin and substrate was 10U/ml and 250?mol/L respectively.Inhibition pattern was determined as competitive with Ki at 35?mol/L.

Purpose To analyze the correlation of right subclavian artery ultrasound and individual blood lipid level with coronary atherosclerosis (CA) using carotid ultrasound as control so as to explore the clinical value of them in predicting CA.Materials and Methods Coronary CT angiography (CCTA) and right subclavian artery/neck vessel ultrasound in 55 patients were retrospectively analyzed.Gensini score was used to calculate the degree of coronary artery lesions.According to the result of CCTA,patients were divided into normal group,mild coronary atherosclerosis group,severe coronary artery stenosis group.The intina-media thickness (IMT) at the origin of right subclavian artery and carotid artery bifurcation on ultrasound was measured to evaluate carotid lesions.The correlation between the IMT and Gensini score of coronary artery was analyzed.The blood lipid levels of the 3 groups were analyzed,and the efficacy of right subclavian artery,carotid artery ultrasound and blood lipid in predicting CA was evaluated.Results ① The IMT at right subclavian artery and carotid artery bifurcation were positively correlated with Gensini score,and the former had higher correlation than the latter (r=0.636,r=0.462,P＜0.01);the prediction efficacy of the IMT at right subclavian artery was slightly higher than that at carotid artery bifurcation (with sensitivity and specificity of 78.3％,64.5％,and 77.5％,60.0％ respectively).② Compared with normal control group,the levels of low-density lipoprotein cholesterol,triglycerides,total cholesterol were higher,but the level of highdensity lipoprotein cholesterol (HDL-C) was lower in mild coronary atherosclerosis and severe coronary artery stenosis group,and the difference between the severe coronary artery stenosis group and normal groups was bigger,among which the level of triglycerides had the largest difference among the three groups with no statistical significance (P＞0.05).The HDL-C had a more significant correlation with Gensini score than other index of blood lipid (r=-0.151).③ The combination of IMT and HDL-C had a sensitivity of 81.0％ and specificity of 66.7％ in predicting CA,which were higher than that of each individual index (with sensitivity of 78.3％,64.5％ and specificity of 64.3％,55.5％respectively).Conclusion The IMT at right subclavian artery has a better predictive value in determining the degree of coronary artery lesions than that at carotid artery bifurcation.The combined application of blood lipid levels and the IMT at right subclavian artery can improve the sensitivity and specificity of predicting CA.

?-lactamase inhibitor research is popular for its potential on ?-lactam antibiotics resistant strain.A ?-lactamase binding peptide SIPIS04-01 was obtained by the yeast two-hybid system.In vitro assay showed that it can inhibit the ?-lactamase activity.In order to improve the expression level of the recombinant peptide,a two-copy expression plasmid pYG563 was constructed by random orientation tandem repeat method after codon modification,the two-copy plasmid was successfully expressed and the product was increased by 48.4% than that of one-copy plasmid.Purified peptide showed inhibitory activity against TEM-1 ?-lactamase in vitro and the inhhibitory constant Ki was measured.

Objective To explore the value of 18F-FDG PET/CT on the assessment of chemotherapy response in patients with diffuse large B-cell lymphoma (DLBCL). Methods 18F-FDG PET/CT was performed before and after 4 cycles of chemotherapy( R-CHOP or CHOP protocol) in 53 patients with DLBCL. The patients were divided into 3 groups: complete response group, partial response group and no response group. The therapeutic response was assessed by comparing post-treatment 18F-FDG PET/CT with pre-treatment PET/CT. Complete remission (CR) rate at the end of chemotherapy was calculated. χ2 test was performed with software SPSS 13.0. Results CR rates of complete response group, partially response group and no response group were 88.5% (23/26), 73.3% (11/15) and 8.3% (1/12), respectively (χ2=23.548, P=0.000). CR rates of the complete and partially response groups were significantly higher than those of no response group (χ2=22.656, P=0.000; χ2=11.407, P=0.001). Conclusion 18F-FDG PET/CT may be useful for the assessment of chemotherapy response in DLBCL.