[Objective]To investigate the influence of panax notoginseng saponins(PNS)on production of Nitric Oxide(NO) by peritoneal macrophages of rats with adjuvant arthritis(AA).[Methods]Complete Freund's adjuvant was used to induce AA in rats.Production of NO by peritoneal macrophages of rats with adjuvant arthritis was determined by nitrate reductase.[Results]PNS 0.4mg/ml increased NO synthesis and secretion from peritoneal macrophages of AA rats in vitro after four hours(P

Objective To study the FDG SUVmax cutoff values in detection of metastases in mediastinal lymph nodes (MLN) and hilar/intralobar lymph nodes (HILN) in pre-operative patients with N0-2 stage NSCLC.Methods A total of 69 patients with stage N0-2 NSCLC (40 males,29 females,age 36-87 years) were included in this retrospective study.18F-FDG PET/CT was performed and followed by lung cancer resection with lymph node dissection in 1 month.The excised lymph nodes were compared one by one between their SUVmax and histopathology.The SUVmax cutoff value in detection of lymph node metastases was determined by the ROC curve.Mann-Whitney u test,x2 test,and Fisher exact test were used for data analysis.Results Metastatic MLN and (or) HILN were found in 21 of 69 NSCLC patients.The histopathologic results demonstrated metastases in 61 of 339 lymph nodes.The SUVmax of metastatic lymph nodes (4.95(3.46,7.19)) was significantly higher than that of benign lymph nodes (2.10(1.59,3.22);z=-7.576,P＜0.05).The SUVmax of metastatic HILN (6.32 (4.28,8.27)) was significantly higher than that of metastatic MLN (3.90(2.12,6.41);z=-2.921,P＜0.05).With cutoff of SUVmax ≥2.5,the sensitivity,specificity and accuracy in detection of all metastatic lymph nodes were 83.6％ (51/61),61.9％ (172/278)and 65.8％ (223/339) respectively,and the parameters were 74.2％ (23/31),79.6％ (160/201) and 78.9％ (183/232) for metastatic MLN,and 93.3％ (28/30),15.6％ (12/77) and 37.4％ (40/107) for metastatic HILN.The diagnostic sensitivities for metastatic MLN and for metastatic HILN were not significantly different (Fisher exact test,P＞0.05),while the specificities and accuracies between the two groups were significantly different (x2 values:96.7 and 56.1,both P＜0.05).According to ROC curves,cutoff values of SUVmax in detecting metastatic MLN and metastatic HILN were 2.78 and 4.93.With the specific cutoff value,the sensitivity,specificity and accuracy in detection of metastatic MLN were 71.0％ (22/31),87.1％ (175/201)and 84.9％(197/232),respectively.The corresponding data in detection of metastatic HILN were 73.3％ (22/30),77.9％(60/77) and 76.6％(82/107).Conclusion Different cutoff values of SUVmax in detecting metastatic MLN and metastatic HILN should be considered for more accurate lymph nodes staging in patients with NSCLC.

Objective To compare the diagnostic efficacy of the V/Q scan and CT pulmonary angiography (CTPA) for the detection of acute pulmonary embolism (PE) in elderly patients.Methods Fortyfour patients (age ≥60 years old) with suspected acute PE underwent V/Q scan and CTPA.The diagnosis of PE by V/Q scan was based on the criteria of prospective investigation of PE diagnosis (PIOPED) Ⅱ and the prospective investigative study of acute PE diagnosis (PISA-PED).The final diagnosis was made clinically.The sensitivities,specificities and accuracies of PIOPED Ⅱ,PISA-PED,CTPA and Wills score were calculated and compared using x2 and Fisher's exact tests.Kappa analysis was used to analyze the diagnostic accordance rate of PIOPED Ⅱ and PISA-PED.Results The sensitivities of PIOPED Ⅱ,PISA-PED and CTPA in the diagnosis of PE were 70.00％ (14/20),84.62％ (22/26) and 65.22％ (15/23),respectively (x2 =0.069-1.545,all P＞0.05).The sensitivity of Wills score was significantly lower (23.08％,3/13).The specificity of CTPA (93.75％,15/16) was significantly higher than those of PIOPED lⅡ and PISAPED (80.00％,12/15 and 61.11％,11/18,both P＜0.05).The accuracies of PIOPED Ⅱ,PISA-PED and CTPA were 74.29％ (26/35),75.00％ (33/44) and 76.92％ (30/39),respectively (x2 =0.005-0.070,all P＞0.05).The accuracy of Wills score was significantly lower (52.17％,12/23).The diagnostic accordance rate of PIOPED Ⅱ and PISA-PED criteria was 77.14％(27/35),Kappa=0.547,P＜0.05.Conclusion V/Q scan and CTPA have no significant difference for the diagnosis of PE in the elderly patients.

Objective To investigate the image characteristics and clinical application of 18F-FDG PET/CT in autoimmune pancreatitis (ALP).Methods The PET/CT images from six male patients (age ranging from 51 to 78(average 69) years) with AIP from 2005 to 2012 were studied retrospectively.Of the six patients,two had follow-up PET/CT images after steroid therapy.The morphologic abnormality was visually analyzed and SUV was calculated.Scores were obtained according to the SUV of pancreas compared with that of the liver (3 =SUV higher than liver,2=SUV similar to liver,1 =SUV lower than liver).The difference between the regular and delayed SUV was compared by paired t test using SPSS 17.0.Results All of the 6 patients showed diffuse FDG uptake in the entire pancreas with SUVmax of 3.2-6.0(5.2± 1.1).Five patients had score 3 and one had score 2.Five patients had delayed scan,of which 4 had increased uptake (SUVmax5.3-7.2),but the SUVmax was not significantly different compared to that before delay scan (4.8-6.0,t =-2.424,P＞0.05).Five patients showed extrapancreatic uptake,especially in the salivary glands.After the steroid therapy,the enlarged pancreas reduced and the intense uptake of the pancreas disappeared.The extrapancreatic uptake showed coinstantaneous remission.Conclusions Increasing FDG uptake at entire pancreas was observed in patients with AIP.18F-FDG PET/CT may be useful for detecting AIP and the associated extrapancreatic uptake,and monitoring the change after therapy,yet it needs further evaluation.

Abnormal metabolism in vivo of uric acid leads to many diseases.Recent discovery shows that glucose transporter-like protein-9,which belongs to glucose transporter family not only transports glucose,but also plays an important role in the process of uric acid transport,which is also affected by pH,glucose,estrogen,etc.The variation of glucose transporter-like protein-9 results in metabolic diseases.Therefore,the study of glucose transporterlike protein-9 in uric acid transport and related drug will provide new ideas to control the development of hyperuricemia and related cardiovascular disease.

Objectives:To study the postoperative nutritional support in patients with pancreatic disease. Methods:Based on the kind of pancreatic disease,twenty two patients were randomly divided into PN+EN group and TPN group during 20 days after operation.Body weight,the restoring time of intestinal movement,the complications,the blood amylase,the serum glutamic pyruvic transaminase,the blood urea nitrogen,the blood sugar,the serum albumin(Alb),transferritin(TFN) and prealbumin(PAB) were compared on the first,fifth,tenth and twentieth day after operation. Results:Body weight of two groups reduced lightly.The blood amylase decreased remarkably.The functions of liver and kidney were recovered gradually.The blood sugar tended to restore normal.Alb,TFN,PAB of two groups increased remarkably( P

A 33-year-old male patient complained of presenting goiter on the low back area for 2 months. Pathological examinations of resected goiter suggested non-Hodgkin lymphoma and showed that T cells, immunoblasts, and hemogram were roughly normal, and 2% sarcoma cells could be found in bone marrow. Stage Ⅳ T-cell non-Hodgkin's lymphoma was diagnosed. Following 4 months of chemotherapy using CHOP protocol (cyclophosphamide, adriamycin, vincristine, and prednisone included), the patient underwent bone marrow activation and autologous peripheral blood stem cell transplantation in combination with recombinant interleukin-2 application in April 1998. The preprocessing was performed under MACC protocol (L-sarcolysinum, cytarabine, cyclophosphamide, and Iomustine included). Ten days after autologous stem cell transplantation, neutrophil concentration was > 0.5×109/L and sixteen days after transplantation, blood platelet concentration was > 50×109/L. Six days after transplantation, the patient exhibited fever, and E. Coli infection was confirmed through blood culture. After antibiotic treatment, body temperature recovered to normal, and fever disappeared. The patient had been followed-up for 10 years and 10 months. During the follow-up period, he lived a normal life and work.

Objective To evaluate the prognostic value of ~(99m)Tc-MIBI myocardial perfusion single-photon emission computed tomography (MPS) with adenosine triphosphate in patients aged 80 years or older. Methods A total of 265 patients [ mean age (84. 2 ±3.6) years old ] who underwent adenosine triphosphate and rest ~(99m)Tc-MIBI myocardial SPECT imaging were followed-up for (36. 7 ± 22. 8 ) months. Results During the period of follow-up, 57 patients (20. 4% ) suffered from cardiac events, including 20 major events: 5 cardiac death and 15 acule non-fatal myocardial infarction, 14 unstable angina pectoris,7 heart failure and 16 cases undergoing PCI. The cardiac event rate in patients with fixed or mixed perfusion defects (n = 54) was 50%, which was significantly higher lhan that in patients with reversible perfusion defects(n=67, 31. 3% ,P<0. 05) and normal perfusion imaging( n = 144, 6. 2% ,P <0. 01 ) . The major cardiac event rate in patients with fixed or mixed perfusion defects was 27. 8% , which was significantly higher than that in those with reversible perfusion defects ( 6. 0% , P < 0. 05) and normal perfusion imaging (0.7%, P < 0. 01 ) . Cox multivariate analysis revealed that an abnormal MPS was the most important independent predictor of major or total cardiac events. Conclusions ~(99m) Tc-MIBI MPS with ATP is demonstrated to be a powerful tool for the prognostic evaluation in octogenarian population. Octogenarians with a normal MPS have a low risk of major or total cardiac events, but when an abnormal MPS is present, the risk is significantly higher, being highest in patients with fixed or mixed perfusion defects.

Objective To explore the feasibility and safety of laparoscopic right hemihepatectomy (LRH) via anterior approach for larger tumors in the right lobe of the liver.Methods A retrospective study was conducted based on the clinical data of ten consecutive patients with large right liver cancer undergoing LRH through anterior approach and thirty-seven patients undergoing open hemihepatectomy by anterior approach in recent 6 years.Results Between the two groups there were no significant difference in gender,average age,the mean tumor size,preoperative liver reserve function,cut margin and intraoperative blood transfusion.The LRH group had less average intraoperative blood loss [(408 ± 158)ml vs.(520 ± 153)ml,t =2.047,P =0.046] and shorter postoperative hospital stay [(11.5 ±2.8)d vs.(16.2 ±4.6) d,t=3.091,P=0.003],longer operation time [(302 ±38)min vs.(251±55)min,t=2.732,P=0.009].There was no perioperative death and no significant difference in complications (20.0％ vs.35.1％,x2 =0.812,P =0.367) and similar median survival time (36 mon vs.29 mon,x2 =1.266,P =0.261).Conclusions LRH via anterior approach for larger tumors in the right lobe of the liver is safe and feasible.

Objective To determine the value of 18F-FDG PET/CT in the detection of subsolid pulmonary nodules.Methods The 18F-FDG PET/CT imaging data of 44 patients (35 males,9 females,mean age (68.05±9.89) years) with 49 subsolid pulmonary nodules were retrospectively analyzed.There were 28 pure ground-glass nodules (pGGN) and 21 part-solid nodules (PSN),which were all confirmed by postsurgical pathology or imaging results during follow-up.The lesion size (dmax),ground-glass opacity (GGO) percentage,SUV retention index (RI),and the positive rates on PET images were accessed.The correlation between SUVmax and lesion size and GGO percentage was analyzed by Pearson correlation analysis.The SUVmax between benign and malignant pGGN,and that between malignant pGGN and PSN,were compared using two-sample t test.The diagnostic accuracy was compared using x2 test.Results (1) Six pGGN were benign while 43 nodules (including 22 pGGN and 21 PSN) were malignant among the 49 nodules.(2) SUVmax was positively correlated with lesion size (r=0.500,P＜0.05) and was negatively correlated with GGO percentage (r=-0.605,P＜0.05) for PSN,while SUVmax was positively correlated with lesion size (r=0.375,P＜0.05) for pGGN.(3) SUVmax was not significantly different (t =-0.813,P＞0.05) between 6 benign pGGN (0.78±0.25,range:0.50-1.20) and 22 malignant pGGN (0.91±0.34,range:0.40-1.70);SUVmax of 21 malignant PSN (2.10±1.16,range:0.60-5.60) was higher than that of 22 malignant pGGN (t=-4.645,P＜0.05).(4) When a nodule's activity being equal to or greater than that of mediastinal blood-pool was defined as malignancy,the accuracy rate of PSN (66.7％,14/21) was significantly higher than that of pGGN (9.1％,2/22; x2 =15.244,P ＜0.05).Based on the criteria for malignancy of RI＞10％,the accuracy rates for PSN and pGGN were 65.0％ (13/20) and 45.8％ (11/24),respectively (x2 =1.616,P＞0.05).Conclusion 18F-FDG PET/CT shows no clear advantage for diagnosis of pGGN,but is helpful for PSN.