1.Progress of selecting tumor markers using SELDI ProteinChip technique
China Oncology 1998;0(04):-
Surface-enhanced laser desorption ionization spectrometry (SELDI),as a new type of proteinchip technique,could easily and quickly acquire the information of proteins in all kinds of body fluid and tissue. It could be used in selecting new tumor markers,early diagnosis and evaluating the risk of tumors. This article introduces the principium of this ProteinChip technique,its application in clinic detection,and the outline of its future.
2.Effect of naloxone on levels of endothlin-1 (ET-1) and alcitonin gene-related peptide (CGRP) in the plasma and cerebrospinal fluid(CSF) after acute cervical spinal cord injury
Jiansheng ZHANG ; Xiaoyang LUO
Chinese Journal of Tissue Engineering Research 2001;5(10):44-45
Objective The levels of endothelin-1(ET-1) and calcitonin gene-related peptide(CGRP) in the plasma and cerebrospinal fluid(CSF)after acute cervical spinal cord injury. Method ET-1 and CGRP were determined by RIA in order to observe the effects of naloxone on levels of ET-1 and CGRP and neuronal death of cervical spinal cord. Result Levels of ET-1 in the plasma and cerebrospinal fluid(CSF)after acute cerical spinal cord injury increased significantly; but the levels of CGRP in the plasma and cerebrospinal fluid(CSF) decreased markedly. The levels of ET-1 in the plasma and cerebropinal fluid(CSF)decreased markedly after the threapy of naloxone; but levels of CGRP in the plama and cerebrospinal fluid(CSF)increased sinificantly. Conclusion These deta suggest that the lessening of CGRP and increasing of ET-1 may be some important reson causing death of neuron after acute cervical spinal cord injury, and naloxone can protecet cervical spinal cord neuron by increasing levels of CGRP and decreasing levels of ET-1.
3.Depletion of human serum albumins by ethanol precipitation
Jun PAN ; Xiaoyang LUO ; Haiquan CHEN
Journal of Medical Postgraduates 2003;0(10):-
Objective: To explore the effectiveness of ethanol precipitation in depleting the human serum albumin. Methods: Serum samples from 8 healthy controls and 8 lung adenocarcinoma patients were treated with 100% ethanol to deplete the albumin.The results of the albumin depletion were analyzed by 1-D gel electrophoresis and albumin quantitation. Results: After ethanol treatment,1-D gel images of the serum samples showed a near depletion of albumins a presence of low-abundance proteins.There was no difference in the 1-D gel images between the normal and lung adenocarcioma serum samples.The average concentrations of albumin in the ethanol-treated serum samples were(5.88 ? 0.35) g/L and(5.50 ? 0.53) g/L respectively in the control and lung adenocarcinoma groups.Conclusion: Ethanol precipitation can deplete most of the human serum albumins and thereby assist us in further analysis of human serum proteomics.
4.Effects of Jinzhuyalong Ershiwuwei coral capsule on PLA2 in degenarated cervical intervertebral discs
Yan JIAO ; Hong DUAN ; Xiaoyang LUO
International Journal of Traditional Chinese Medicine 2013;(7):610-612
Objective To study the anti-inflammation mechanism of Jinzhuyalong Ershiwuwei coral capsule on cervical spondylosis by investigating Jinzhuyalong Ershiwuwei coral capsule on PLA2 in degenerated cervical intervertebral discs.Methods 60SD rats (SPF) were divided into a control group (15),a medicine model control group (15),a medicine modle 1 group (15),and a medicine model 2 group (15) by random lottery; Medicine model 1,2 groups were given Jinzhuyalong Ershiwuwei coral capsule powder 0.33 × 5 g/kg 0.66×5 g/kg,and added 1 ml distilled water dilution lavage,l/d,90 d,The unbalance of power cervical spondylosis animal models were chosen and C4~5 neck intervertebral discs were taken after 90 days.Millipore colorimetry methods were used to measure PLA2 activity in C4~5 cervical intervertebral discs.Results The PLA2 activity of the cervical intervertebral disc (12.37 ± 4.21) IU/mg · min-1 in the model group was significantly higher than the control group(2.56± 1.19)IU/mg· min-1 (P<0.05).The cervical intervertebral disc PLA2 activity of medicine model group 1 (8.56± 2.13)IU/mg · min-1 and medicine model group 2 (5.58 ±2.39)IU/mg· min-1 was lower than the model control group(12.37±4.21)IU/mg· min-1,with significant differences (both P<0.01).Conclusion Jinzhuyalong Ershiwuwei coral capsule could down regulate PLA2 activity in degenerated cervical intervertebral discs,and also decrease the production of some inflammaroty mediators.
5.The Applied Value of Multi-slice Spiral CT in Breast Cancer Diagnosis
Min LUO ; Yuantong GAO ; Xiaoyang WANG ; Yang LI
Journal of Practical Radiology 2001;0(05):-
Objective To discuss the application value of the multi-slice spiral CT in diagnosing breast cancer. Methods The images of scanning, enhancing and reconstruction were analyzed in 29 cases of breast cancer proved by clinical pathology. Results All the 29 cases were the type of mass. 25 cases of them located in outer and upper quadrant of the galactophore. The shapes of the tumor in 22 cases were irregular , burrs can be seen in 9 cases, the skin in 4 cases changed, the nipples in 2 cases sunk, the tissue around the tumor was invaded in 5 cases; The CT value of the tumor rised greatly after enhancement, the ranges of value was from 18 to 83 HU. Axilla lumph nodes were detected in 16 cases, we can find the lumph node in mediastinum and lung metastasis in 3 cases; The tumor and the tissue around it can be shown well in multi-orientations through image reconstruction. Conclusion The multi-slice spiral CT has the evident application value in qualitative diagnosing breast cancer.
6.The study of lung adenocarcinoma serum biomarkers selected by surface-enhanced laser desorption ionization spectrometry
Haiquan CHEN ; Xiaoyang LUO ; Wenjing WANG ; Ping LIAO ; Cuiqin XIANG
China Oncology 1998;0(01):-
Background and Objective:Lung adenocarcinoma is,at present,the most common malignancy in the world and its overall 5-year survival rate is disappointing.Because most of the patients are diagnosed at advanced stage,early diagnosis may improve the prognosis of patients with lung adenocarcinoma.Surface-Enhanced Laser Desorption and Ionization Mass Spectrometry(SELDI) is one of the currently used techniques to identify biomarkers for cancers.This study explored the application of serum SELDI proteomic patterns to distinguish lung adenocarcinoma patients from healthy individuals.Methods:Serum samples from 71 lung adenocarcinoma patients,71 healthy volunteers with matched gender,age and history of smoking were analyzed using WCX2 ProteinChip to select potential biomarkers.Proteomic spectra were generated by mass spectrometry.Results:Five highly expressed potential biomarkers were identified with the relative molecular weights of 4047.79?1.60,4203.99?1.91,4959.81?2.13,5329.30?2.55 and 7760.12?4.11.The sensitivity for diagnosing lung adenocarcinoma was 90.14%,78.87%,50.70%,57.75%,73.24%;and specificity was 97.18%,92.96%,70.42%,76.06%,94.37%,when the critical point was made 1.5.Conclusions:SELDI-TOF-MS ProteinChip technology is a quick,easy,convenient,and highoutput analyzing method that it is capable of selecting several relatively specific,potential biomarkers from the serum of lung adenocarcinoma patients and may have clinic value.
7.Stereotactic mammography surgical biopsy in the diagnosis of occult breast cancar
Dingcun LUO ; Xiaoyang LI ; Yaozhong NI ; Haibin ZHOU ; Lan WANG
Chinese Journal of General Surgery 2000;0(12):-
Objective To investigate the value of surgical biopsy with guidance of indwelling wire through stereotactic puncture in the diagnosis of occult breast cancer (OBC) and the clinical usage. Method Surgical biopsy was performed on 22 patients with suspected nonpalpable breast lesions. ResultsSurgical biopsy, including localization and resection of the lesion, under the guidance of a guide wire was successful with single procedure for all 22 lesions. The accuracy of qualitative diagnosis was 100%. Pathological examination showed malignant in 9 lesions and benign in 13 lesions. ConclusionThe surgical biopsy with the guidance of indwelling wire through stereotactic puncture is valuable technigue for the diagnosis of occult breast lesions.
8.Epidemiological investigation on TORCH infection of children in Pu′er
Chunhong ZHOU ; Xiangyang GAO ; Xiaoyang ZHANG ; Dan LUO
International Journal of Laboratory Medicine 2016;37(5):626-627,630
Objective To make an epidemiological investigation on TORCH infection in children in Pu′er city of Yunnan prov‐ince ,in order to provide references for the prevention and treatment of TORCH infection in children .Methods A total of 1 194 children treated at this hospital from January to December 2014 were selected and divided into five age groups .Serum TORCH spe‐cific IgM and IgG antibodies were detected by using enzyme‐linked immunosorbent assay(ELISA) and the positive rate of TORCH specific antibody and TORCH infection rate were comparatively analysed .Results The positive rate of TORCH specific IgM anti‐body was significantly lower than that of IgG .The range of positive rate of IgM was 0 .00% -3 .10% ,and that of IgG was 10 .13% -82 .24% .The total infection rate of TORCH was 96 .98% .There were no significant differences in the infection rate of single item of TORCH or the total TORCH infection rate among the five different age groups(P>0 .05) .The distribution of infec‐tion rate of single item of TORCH among the five age groups was statistically significantly different(P<0 .05) .There was no sig‐nificant difference in the infection rate of TORCH or the distribution of infection rate of single item of TORCH among different sea‐sons(P>0 .05) .Conclusion Children with TORCH infection in this area mainly are infected by CMV ,followed with RV and HSV infections ,while TOX infection is uncommon .There are no obvious differences in different seasons and children in different age groups .
9.The analysis of clinical application on children′s respiratory tract infection pathogens IgM antibody nine-combined detection in Pu′er
Dan LUO ; Xiaoyang ZHANG ; Xiangyang GAO ; Chunhong ZHOU ; Yuanbang WEN
International Journal of Laboratory Medicine 2016;37(9):1205-1206,1209
Objective To analyze the results of children′s respiratory tract infection pathogens IgM antibody nine‐combined de‐tection in Pu′er and grasp the epidemiological characteristics of respiratory tract infection of local children for providing reference for clinical diagnosis and treatment .Methods 1 327 cases of children′s blood sample with respiratory tract infection were randomly sampled from in Pu′er People′s Hospital in 2014 .All the samples were tested with nine respiratory tract infection pathogens IgM antibody detection reagent kit(indirect immunofluorescence) ,and the test results were adopted for statistical analysis .Results There were 446 cases positive for IgM antibody in 1 327 cases of respiratory tract infection children ,the total positive rate was 33 .6% .The Positive rate of mycoplasma pneumonia(MP) was the highest ,for 23 .6% .The second was influenza B virus(INFB) , for 18 .5% .The eosinophilic lung legionella type 1(LP) ,adenovirus(ADV) ,respiratory syncytial virus(RSV) ,influenza A(INFA) and parainfluenza virus(HPIVs) were all much lower :respectively for 0 .4% ,1 .1% ,1 .0% ,1 .1% and 1 .0% .It was showed that no positive results were found in Q fever rickettsia(CB) and chlamydia pneumonia(CP) .There was significant difference of the positive rate among 9 kinds of pathogens(P<0 .05) .There was significant difference of the monthly positive rate among the main six patho‐gens(P<0 .05) .There was significant difference of the positive rate in the different age groups(P<0 .05) .Conclusion The respir‐atory tract infection pathogens of children in Pu′er are mainly mycoplasma pneumoniae and influenza B virus .The epidemiological distribution of the pathogens is related to the age and season ,the clinician should reasonably diagnose and treat according to the test results for children .
10.Combined management of non-small cell lung cancer:current status and perspective
Wong JOHN ; BOON CHER GOH ; Lu JIADE ; Xiaoyang LUO ;
China Oncology 2001;0(03):-
Lobectomy has been the primary treatment modality for resectable non-small cell lung cancer.However, recent data showed that surgery alone is not adequate for resectable NSCLC treatment. All patients eligible for surgery with curative intent (stage Ⅰ,Ⅱ,and ⅢA) may benefit from adjuvant chemotherapy.Although combined chemoradiation may improve local control for stage ⅢA disease,radiotherapy has been shown to be harmful for patients with stage Ⅰ and Ⅱ NSCLC after complete resection.The role of neoadjuvant chemotherapy or chemoradiation in resectable NSCLC is controversial.RTOG and SWOG have initiated a phase Ⅲ randomised trial to evaluate the effect of preoperative combined chemoradiation followed by surgical resection and consolidation chemotherapy for stage ⅢA disease.In this review,we discuss the current status of combined management of NSCLC and forecast the future direction of treatment by reviewing a number of landmark publications and ongoing clinical trials..