2.Characteristics of U.S.Military Nuclear Medical Emergency Rescue Forces
Tianxi DIAO ; Peng LI ; Lijuan LI ; Wei ZHOU ; Bo FU
Military Medical Sciences 2013;(11):847-849,853
Nuclear medical emergency rescue , as an important task for the military , has become a priority in many countries.The U.S.military has accumulated rich experience in the development of nuclear medical emergency rescue forces.This paper analyzes the legal status , roles, responsibilities and tasks of the U .S.military during nuclear emergency rescue as well as the characteristics and current status of nuclear emergency rescue forces , hoping to provide some refer-ences for development of our military nuclear medical emergency rescue forces .
3.Determination of 5,7-dimethoxycoumarin in Fructus Citris Sarcodactylis by HPLC
Youheng GAO ; Yuanming DIAO ; Xinsheng PENG ; Honghua XU
Traditional Chinese Drug Research & Clinical Pharmacology 1993;0(04):-
Objective To determine the content of 5,7-dimethoxycoumarin in Fructus Citris Sarcodactylis. Methods HPLC was used. Mobile phase was methanol-water(65 ∶35),detection wavelength at 326 nm,flow rate 1mL/min and column temperature at 35 ℃.Results The linearity of 5,7-dimethoxycoumarin was in the range of 0.3528~1.7640 ?g. The regression equation was Y=2403.73 X-65.35,r=0.9998. The average recovery was 99.33 %,RSD=1.47 %(n=6). Conclusion The method is simple and accurate. It can be applied in the determination of 5,7-dimethoxycoumarin in Fructus Citris sarcodactylis.
4.Analysis of the Changes of Blood Cell Count and D-dimer in Lung Cancer Patients with Thrombosis
Xue DIAO ; Lanhuan PENG ; Tingting ZENG ; Jing ZHOU ; Jun SU
Journal of Modern Laboratory Medicine 2015;(1):68-71
Objective To analyze the changes of Blood Cell Count and D-dimer concentration in lung cancer patients with thrombosis.Methods ①554 cases of patients with lung cancer were included between January 2012 and November 2013,75 patients with other diseases which lead to high coagulation state were excluded,blood cell count and D-dimer concentration were compared between 64 lung cancer patients were the cases with thrombosis with 415 lung cancer patients were the con-trol group without thrombosis.②Color doppler ultrasonography was taken as the golden standard,receiver operating charac-teristic curves (ROC)were drawn for indexes which had significance in method.Results ①Compared with lung cancer pa-tients without thrombosis,lung cancer patients without thrombosis had decreased red blood cell count (RBC),increased white blood cell count (WBC)and D-dimer.And there were no significant change in platelet (PLT).②The area under curve (AUC)of ROC in RBC,WBC and D-dimer were 0.662,0.637 and 0.896,respectively.By thecut-off values of RBC>4.06× 1012 L,WBC<5.37×109/L and D-dimer<4.02 mg/L,the negative predictive values of RBC,WBC and D-dimer for diagno-sis of lung cancer patient with thrombosis were 93%,93% and 96%,respectively.By the cut-off value of D-dimer>4.02 mg/L,the positive predictive value of D-dimer for diagnosis of lung cancer patient with thrombosis was 6 6%.Conclusion RBC,WBC and D-dimer were related with the progress of thrombosis in lung cancer patients.RBC,WBC and D-dimer have good negative prediction effect on lung cancer patients with thrombosis.D-dimer had positive effect for diagnosis of lung cancer with thrombosis.
5. A new flavonoid isolated from fruits of Solanum virginianum
Chinese Traditional and Herbal Drugs 2020;51(15):3845-3849
Objective: To study the chemical constituents from the fruits of Solanum virginianum. Methods: By means of preparative HPTLC and column chromatography over silica gel and Sephadex LH-20, compounds were isolated and purified. Their structures were elucidated by physico-chemical properties and spectral analyses. Results: Twelve compounds were obtained and identified as: 5-hydroxy-8-methoxy-6,7-methylenedioxyflavone (1), 7-hydroxy-6-methoxy coumarin (2), fraxetin (3), 5-hydroxy- 6,7,3',4'-tetramethoxyflavone (4), 5-hydroxy-4',6,7-trimethoxyflavone (5), dihydro-N-feruloyltyramine (6), N-trans-coumaroyltyramine (7), 5,3'-dihydroxy-6,7,4'-tritermethoxyflavone (8), N-[2-(3,4-dihydroxyphenyl)-2-hydroxyethyl]-3-(4-methoxyphenyl)-prop-2-enamide (9), N-trans-coumaroyloctopamine (10), 5,7,4'-trihydroxy-6-methoxyflavone (11), and 5,7,4'-trihydroxy-8-methoxyflavone (12). Conclusion: Compound 1 is a new flavonoid, named as solacarpumon, and compounds 2-12 are isolated from Solanum virginianum for the first time.
6.Scan parameter optimization of renal artery with inflow-sensitive inversion recovery magnetic resonance angiography
Peng WANG ; Jun ZHANG ; Qiang DIAO ; Lin LI ; Gang YANG ; Ling ZHENG ; Yanjun LI
Journal of Medical Postgraduates 2015;(2):186-188
Objective Non-contrast enhanced magnetic resonance angiography ( MRA) has become the focus of research at home and abroad .The aim of the article was to optimize the scan parameters of renal artery with inflow-sensitive inversion recovery ( IF-IR) MRA. Methods 30 cases of renal artery patients into two groups were collected from December 2013 to May 2014 in our hospi-tal.They were divided into stenosis group(n=12) and non-stenosis group(n=48).IFIR-MRA sequences were carried out on each patient by using various BSP-TI with 1200,1300 and 1400 ms, all other parameters were identical .The image signal to noise ratio, a renal artery branch and venous artifact were evaluated by two experienced radiologists , and the best BSP-TI was obtained from different groups. Results BSP-TI=1400 ms was optimal for renal artery stenosis group while 1200 ms was the most suitable for non-stenosis group. Conclusion IFIR-MRA of renal artery can achieve better image quality of renal artery and its branches and it is feasible in clinical routine practice , especially for those patients with renal insufficiency .
7.Analysis of the risk factors for gastroparesis syndrome after laparoscopic pancreatoduodenectomy
Zhipeng ZHENG ; Junming HE ; Xiaosheng ZHONG ; Youxing HUANG ; Jingfang DIAO ; Jianxin PENG ; Zhijian TAN
Clinical Medicine of China 2017;33(4):300-303
Objective To investigate the risk factors associated with gastroparesis syndrome after laparoscopic pancreatoduodenectomy which provide reference for clinical prevention.Methods Ninety cases of laparoscopic pancreatoduodenectomy admitted from August 2013 to December 2016 in Traditional Chinese Medicine Hospital of Guangdong Province were studied retrospectively,57 were male(63.3%),the average age was 54.6 years old.Twenty cases were diagnosed postoparative gastroparesis syndrome(22.2%).To screen out the risk factors,31 independent variables were analyzed by univariate analysis and logistic regression.Results Univariate analysis showed that malnutrition,hypoproteinemia,anemia,pylorus-preserving,extensive lymph nodes dissection,anxiety,high blood sugar before operation,delay of enteral nutrition,abdominal infection and postoperative high blood sugar were associated with postoperative gastroparesis(The value of OR were 3.143,3.587,2.852,2.889,3.231,7.071,2.889,5.359,6.000,6.263,P<0.05).Multivariate Logistic regression analysis showed that extensive lymph nodes dissection,anxiety,pylorus-preserving,abdominal infection,delay of enteral nutrition,hypoproteinemia,postoperative high blood sugar were risk factors of postoperative gastroparesis(The value of OR were 17.574,8.931,6.637,6.461,6.446,5.414,5.200;P<0.05).Conclusion Multiple risk factors can lead to gastroparesis after laparoscopic pancreatoduodenectomy,measures should be taken aimed at these risk factors during perioperative period.
8.AntiEGFRnano inhibites proliferation and migration of estrogen-dependent Ishikawa cells of human endometrial cancer cell line.
Zhenyu DIAO ; Wuguang LU ; Peng CAO ; Yunlong HU ; Xing ZHOU ; Pingping XUE ; Li SHEN ; Haixiang SUN
Acta Pharmaceutica Sinica 2012;47(10):1341-6
Nanobody is a kind of antibody from camel, which misses light chain. Nanobody has the same antigen binding specificity and affinity as mAb. Moreover, because of its small molecular weight, high stability and easy preparation, nanobody has great value of biomedical applications. In this study, we successfully prepared highly pure antiEGFR nanobody in E.coli using genetic engineering techniques. Cell proliferation assay (CCK-8 assay) and migration experiments (cell scratch test and Transwell assay) indicated that the recombinant antiEGFRnano can significantly inhibit the proliferation and migration of endometrial cancer cells. These results provide a new way of thinking and methods for EGFR-targeted therapy of endometrial cancer.
9.Determination of three oligosaccharide esters in Polygalae Radix and its three processed products by HPLC
Ruqiao LUAN ; Xuelan ZHANG ; Peng WU ; Huaixing KANG ; Huifen LI ; Jiawei DIAO ; Baoxin XU ; Xin ZHAO
Chinese Traditional Patent Medicine 2017;39(8):1666-1669
AIM To determine the contents of arillanin A,tenuifoliside A and tenuifoliside C in raw Polygalae Radix (root barks),Polygalae Radix duramen,Glycyrrhizae Radix et Rhizoma-processed Polygalae Radix,waterboiling Polygalae Radix and honey-processed Polygalae Radix.METHODS The analyses of 50% methanol extracts from samples were performed on a 30 ℃ thermostatic Kromasil C18 column (250 mm ×4.6 mm,5 μm),with the mobile phase comprising of acetonitrile-0.1% formic acid flowing at 1.0 mL/min in a gradient elution manner,and the detection wavelength was set at 330 nm.RESULTS The contents of three oligosaccharide esters were the highest in raw Polygalae Radix,followed by those in honey-processed Polygalae Radix,and those in water-boiling Polygalae Radix were the lowest.These constituents also existed in Polygalae Radix duramen,but their contents were lower than those in root barks.CONCLUSION The ester bonds of oligosaccharide esters in Polygalae Radix may be hydrolyzed during processing,followed by the generation of small molecular organic acids.The medication of whole Polygalae Radix (root barks and duramen) can be taken into consideration in clinical practice to reduce toxicity and enhance efficacy.
10.Clinical Characteristics of Coronary Slow Flow in Relevant Patients
Jing WANG ; Li LI ; Yong LI ; Jianqi FENG ; Cheng PENG ; Jun DIAO ; Ji HAO ; Weiheng WU
Chinese Circulation Journal 2015;(11):1035-1038
Objective: To explore the clinical and anatomical characteristics of coronary slow lfow (CSF) in relevant patients.
Methods: We summarized the patients without coronary angiography (CAG) proved coronary stenosis (stenosis < 40%) while with TIMI indicated CSF in our hospital from 2013-01 to 2015-01. The patients were divided into 2 groups: CSF group, n=56 patients having at least 1 major coronary artery with TIMI frame counts > 27 and Control group,n=55 patients with normal coronary lfow. The related laboratory indexes were examined and relationship between MCV and CSF was studied by multi-logistic regression analysis.
Results: In CSF group, MCV 90.4 (87.48, 92.65) fL and RDW-CV 12.5 (12.30, 13.18) % were lower than those in Control group 92.3 (90.1, 94.3) fL and 13(12.7, 13.4) %,P<0.05; while MCHC 337 (332, 347) g/L and the number of left circumlfex distal braches involved 3 (2, 4) were higher than those in Control group 327.5 (322, 338) g/L and 2 (2, 3),P<0.05. Multi-logistic regression analysis showed that MCV was negatively related to CSF (partial regression coefficient= -0.138, P=0.015), Spearman rank correlation analysis presented that MCV was negatively related to TIMI frame counts (r= -0.201, P=0.009).
Conclusion: Deformability of red blood cells might be involved in pathogenesis of CSF in relevant patients.