1.Clinical application of 18F-FDG PET/CT for cardiac neoplasm diagnosis
Long SUN ; Maoqing JIANG ; Long ZHAO ; Zuoming LUO ; Hua WU
Chinese Journal of Nuclear Medicine and Molecular Imaging 2013;(3):175-178
Objective To explore the clinical value of 18F-FDG PET/CT in the diagnosis of cardiac neoplasm.Methods Between January 2007 and December 2011,18F-FDG PET/CT was performed in 8649 patients in our hospital,and 14 (0.16% ; 11 males,3 females,average age 46.9 (35-68) years) patients were diagnosed with cardiac neoplasm.18F-FDG PET/CT data of those 14 patients were retrospectively analyzed.Final diagnoses were confirmed by either histopathology (n =5) or follow-up (n =9).Results Accurate tumor localization and diagnoses were made by 18 F-FDG PET/CT in all 14 patients.Among them,13 were malignant (2(14.3%,2/14) primary and 11(78.6%,11/14) metastatic tumors (8 HCC,2 lung cancer,1 esophageal cancer) ; SUVmax 3.2-10.7) and 1 (7.1%,1/14) was benign (myxoma).Conclusion 18F-FDG PET/CT is useful for the detection and staging of primary malignant and metastatic cardiac neoplasms.
3.Miniaturized Corona Discharge-Atomic Emission Spectrometer for Determination of Trace Mercury
Hong LUO ; Xiandeng HOU ; Zhou LONG
Chinese Journal of Analytical Chemistry 2015;(9):1291-1295
A miniaturized atomic emission spectrometer composed of a corona discharge source and a handheld charge-coupled device detector was constructed for the sensitive determination of trace mercury, with photochemical vapor generation for sample introduction. By using formic acid, mercury vapor was generated under the irradiation of UV light, and then the vapor was introduced into the corona discharge area with the carrier gas flow of argon. The optical signals were captured and analyzed by the charge-coupled device detector at 253. 7 nm. Under the optimized conditions including 4% formic acid, discharge voltage of 90 V, and carrier gas flow rate of 200 mL/min, the stable detection signals were obtained ( RSD=2. 5%). The calibration curves were plotted with the concentration of mercury ranging from 0. 5 to 1000 ng/mL, with a correlation coefficient >0. 99 and the limit of detection of 0. 03 ng/mL. Two certified reference materials were analyzed, and a t-test demonstrated that the determined results by the proposed method had no significant difference with the certified values at the confidence level of 95%. Water samples collected from both Funan River in Chengdu and the Lotus Pond on campus of Sichuan University were analyzed as well, with the recoveries of standard addition between 93 . 8% and 103%. The miniaturized instrumentation demonstrated several advantages including easy construction, low power consumption, high sensitivity, and portability for field analysis.
4.The clinical observation of advanced non small cell lung cancer treated with Shenqifuzheng injections combined with PTX and DDP
Shizheng LUO ; Jinhua LONG ; Xiangyan YU
Cancer Research and Clinic 1997;0(03):-
Objective To observe the clinical effects of Shenqifuzheng injections combined with PTX and DDP on advanced non small cell lung cancers. Methods Fifty cases of advanced non small cell lung cancers were randomly divided into pure chemotherapy and chemotherapy combined with traditional Chinese medicine groups. The former was treated with 30 mg/m2 DDP from day 1 to day 3, 135 mg/m2 PTX only at the first day. The latter was treated with 250 ml Shenqifuzheng injections every day until the twentieth-first one, three days before the beginning of chemotherapy. After two periods of treatments, the therapeutic effects were evaluated, respectively. Results The recent effective ratios of chemotherapy combined with traditional Chinese medicine and pure chemotherapy groups were 48 % and 40 %, respectively. The former could ameliorate the physical status, the numbers of peripheral leucocytes, the decreases of blood platelet, the gastrointestinal reactions of subjects. Conclusion The Shenqifuzheng injections could increase the recent treatment effect of PTX combined with DDP on advanced non small cell lung cancers, effectively meliorate the clinical symptoms and alleviate the side effects of chemotherapy leading to improve the life qualities of subjects.
5.Clinical analysis of 27 cases of thoraco-abdominal injury with diaphragmatic rupture
Rongzun LONG ; Deyuan LUO ; Miaolong HUANG
Clinical Medicine of China 2000;0(09):-
Objective To study the clinical features and treatment experience in the treatment of thoraco abdominal injury with diaphragmatic rupture.Methods Clinical data of 27 patients suffering from thoraco-abdominal injury with diaphragmatic rupture were analysed retrospectively.Results Injuries of this kind are usually complicated involving mostly the organ injuries,which are not obvious in clinical indications. In the present study group,27 cases were treated surgically,of whom 24 healed and 3 died(11.1%).Conclusion Early diagnosis and timely operation are the key steps in reducing the complications and mortality.
6.Prevention of Post-operative Adhesion with Early Electro-acupuncture Treatment
Rong LUO ; Yu-long YANG ; Hong LI
Chinese Journal of Rehabilitation Theory and Practice 2006;12(8):699-700
ObjectiveTo investigate the effect of early electro-acupuncture treatment on prevention of post-operative adhesions.Methods40 rabbits were randomly divided into 5 groups: normal control group, model group 1, model group 2, early electro-acupuncture group and later electro-acupuncture group with 8 animals in each group. Muscle adhesion model was established by operation. The early electro-acupuncture group was received the treatment from the 11th to 20th day after the operation; later electro-acupuncture group was from the 21st to 30th day after the operation. The weight, gait and range of motion (ROM) of animals were observed and analyzed.ResultsThe standing, walking and ROM of animals of the early electro-acupuncture group improved; but only few gait indexes improved and ROM not changed in the later electro-acupuncture group.ConclusionThe early electro-acupuncture treatment can prevent the post-operative adhesion of muscles, but not having effect on formed adhesion.
7.Activated nano carbon in prophylactic central lymph node dissection of T1 papillary thyroid non-microcarcinoma
Miaoyun LONG ; Hongyang LONG ; Mingqing HUANG ; Xinzhi PENG ; Dingyuan LUO ; Kai HUANG ; Honghao LI
Journal of Endocrine Surgery 2014;8(5):422-424
Objective To investigate activated nano carbon in prophylactic central lymph node dissection of T1 papillary thyroid non-microcarcinoma.Methods Patients with T1 papillary thyroid non-microcarcinoma in Thyroid Surgery Department of Sun Yat-sen Memorial Hospital of Sun Yat-sen University undergoing surgery from Jan.2012 to Jun.2013 were divided into 2 groups:odd numbers were the experimental group,and even numbers were the control group.Activated nano carbon was injected in the affected side of the thyroid in the experimental group.The lymph node metastasis,parathyroid function,and the rate of recurrent laryngeal nerve (RLN) injury were compared between the 2 groups.Results The total number of resected lymph nodes in the experimental group and the control group were 327 and 238 respectively.The positive lymph nodes in the experimental group and the control group were 120 (36.7%)and 56 (23.5 %)respectively.The difference had statistical significance (P =0.000 85).The number of patients with lymphatic metastasis in the experimental group and the control group was 42 (56%) and 30 (40%) respectively.The difference had statistical significance (P =0.049 9).The average number of positive lymph node for patients in the experimental group and the control group was (2.86 ± 0.13) and(1.87 ± 0.09) respectively.The difference had statistical significance(P =0.009).The rate of transient hypoparathyroidism in the experimental group and the control group was 34.7% and 60% respectively.The difference had statistical significance (P =0.002).The incidence of hoarseness caused by RLN injury was 2.7% and 4% respectively in the experimental group and the control group.The difference had no statistical significance(P =1.000).Conclusions Activated nano carbon plays an important role in prophylactic central lymph node dissection of T1 papillary thyroid non-microcarcinoma phase.It not only contributes to lymph node dissection,but also protects parathyroid.However,it can't reduce the incidence of RLN injury.
8.Screening of antigenic epitope of neutrophil-activating protein of Helicobacter pylori by phage display peptide Hbrary
Jun LUO ; Yan LI ; Jianping LAI ; Min LONG ; Wenbing ZHANG ; Beiguo LONG
Chinese Journal of Microbiology and Immunology 2008;28(4):357-362
Objective To identify epitope of neutrophil-activating protein(NAP) of Helicobacter pylori(Hp).Methods Using the mouse monoclonal antibodies against NAP as selective molecular and immunoscrcening phage-display random 7-peptides library.The positive clones were sequenced and analyzed.Phage clones were chosen to immunize mice and to evaluate the potential of phagotopes as effective vaccines.Results One mimotope(FAHLATQ)showed a good match with the NAP at 140-143 AA(AHLA)and the serum of mice induced by the phage clone clearly recognized NAP.Conclusion This study suggests thatthe antigenic epitope could be mapped through screening the phage-display peptide library with monoclonalantibody and a mimotopo of NAP providing an ahernative approach for the diagnosis and development of avaccine for Hp.
9.Association between single nucleotide polymorphisms of apolipoprotein E gene and epileptic drug resistance
Luo ZHOU ; Lili LONG ; Hongyu LONG ; Li FENG ; Lin XU ; Jiaoe GONG ; Bo XIAO
Chinese Journal of Neurology 2014;47(8):523-527
Objective To investigate the possible association between two single nucleotide polymorphisms (SNPs) loci of apolipoprotein E (ApoE) gene and epileptic drug resistance in a central Chinese Han population.Methods A case control study was performed in 364 epileptic patients.According to the criteria of drug resistant epilepsy proposed by International League Against Epilepsy in 2010,143 patients were classified into drug resistant group and 221 patients into drug responsive group.The peripheral venous blood of each patient was collected for DNA extraction after clinical evaluation.The candidate ApoE SNPs loci,including rs7412 and rs769450,were genotyped by BeadChip Scanning and GoldenGate Assay following the Illumina protocols.The differences in allelic and genotypic frequency were compared between groups.Linkage disequilibrium was calculated through SHEsis platform.Results There was no significant difference for genotype or allele of rs7412 between groups.The GG genotype (OR =2.038,95% CI 1.196-3.475,P=0.009) and G allele (OR =1.618,95%CI 1.193-2.193,P=0.002) of rs7412 were significantly more abundant in the drug resistant group.As for idiopathic epileptic patients,the GG genotype (OR =2.110,95% CI 1.189-3.744,P =0.011) and G allele (OR =1.641,95% CI 1.187-2.270,P =0.003) of rs7412 were still significantly more abundant in the drug resistant group.There was no linkage disequilibrium between the two loci with D' value of 0.072.Conclusion The GG genotype and G allele of ApoE rs769450 may be associated with epileptic drug resistance in a central Chinese Han population.
10.Clinical application of 18F-FDG PET/CT on tumor staging and tumor thrombus grading of renal cell carcinoma
Wei GUO ; Bing HAO ; Haojun CHEN ; Long ZHAO ; Zuoming LUO ; Hua WU ; Long SUN
Chinese Journal of Nuclear Medicine and Molecular Imaging 2016;36(4):310-314
Objective To investigate the value of 18F-FDG PET/CT in the phasing and grading of renal cell carcinoma (RCC) complicated with vena cava tumor thrombus (VCTT).Methods From December 2011 to September 2015,a total of 72 patients (52 males,20 females,age:36-74 years) were enrolled in this retrospectively study.All patients underwent 18F-FDG PET/CT and contrast-enhanced CT studies,and were diagnosed as RCC.The RCC patients combined with VCTT were classified by Mayo-level.Wilcoxon rank sum test was used to compare the grading of VCTT by PET/CT and contrast-enhanced CT.NM staging on abdominal area level was performed and the results were compared with x2 test.Results VCTT was identified in 18 RCC patients and the grading results by PET/CT were as follows:9 cases in Level 0,4 cases in Level Ⅰ,2 cases in Level Ⅱ,1 case in Level Ⅲ,and 2 cases in Level Ⅳ.When evaluated by PET/CT,20 cases were in N0M0,21 were in N1M0,9 were in N0M1,and 22 were in N1M1.NM staging results by contrast-enhanced CT were as follows:50 cases in N0M0,10 in N1M0,10 in N0M1,and 2 in N1M1.In addition,2 N1 and 2 M1 were found by the whole body PET/CT.The classification results of VCTT and staging of abdominal level by PET/CT were significantly better than those by contrast-enhanced CT (z=-2.462,P<0.05;x2=32.806,P<0.01).Conclusion 18F-FDG PET/CT is not only valuable for detecting primary RCC and local metastasis,but also useful for finding where the VCTT extends,which is conducive to therapeutic planning and further clinical treatment.