1.Multiform peripheral blood lymphocyte gene expression spectrum in glioblastoma patients
Journal of Third Military Medical University 2003;0(16):-
Objective To study the difference of the peripheral blood lymphocyte gene expression in the glioblastoma patients and the normal subjects by the gene chip engineering technique. Methods The human gene expression spectrum chip containing 13 824 cDNA was used to detect the gene expression in the peripheral blood lymphocytes of 23 glioblastoma patients and 40 normal persons. The lymphocyte mRNA in the glioblastoma patients and healthy subjects was withdrawn. The cDNA probe with the different fluorescein was made by reverse transcription. The probe and the chip were hybridized. The fluorescence intensity was scanned and digitized,and gene expression was compared between the two groups. Results The peripheral blood lymphocytes in the glioblastoma patients had 96 genes to present the difference expression with that of normal subjects,including 25 upregulated genes and 71 downregulated genes. Conclusion The gene expression in the peripheral blood lymphocytes of glioblastoma patients and normal subjects exists difference. The lymphocyte DNA union,the abnormal function of transcription and signal conduction are the possible reasons for the different immune function between the glioblastoma patients and the healthy subjects.
2.Effect of low-level laser biostimulation in wound healing
Chinese Medical Equipment Journal 2003;0(10):-
Low-level laser biostimulation can be applied in wound therapy to speed up the wound healing,prevent infection and relieve the pain.Although it is still a problem how to select the laser wavelength,power and dose for different wounds because of its unclear mechanism,it has been proved that LLLT has good curative effect and application prospect in wound healing.
3.Comparison of transradial and transfemoral appoaches in intervention of unprotected left main lesions
Wanjun CHENG ; Yujie ZHOU ; Yingxin ZHAO
Chinese Journal of Interventional Cardiology 2003;0(05):-
0.05).However,major vascular complications occurred only in the femoral group(3.9%).Conclusion Transradial LM PCI is as fast and successful as the femoral approach and results in fewer vascular complications.
4.Antisense oligodeoxyribonucleotide of pituitary tumor transforming gene inhibits proliferation of glioblastoma
Yingxin CHENG ; Yuan GAO ; Wenyuan TANG ; Bingbo CHEN
Journal of Third Military Medical University 2003;0(19):-
Objective To investigate the inhibition effect of pituitary tumor transforming gene(PTTG) antisense oligodeoxynucleotide(ASODN) on C6 glioblastoma in rats.Methods The C6 glioma cells were injected into the right caudate nucleus.PTTG-ASODN of 8 or 16 ?g/ml was injected into the tumor-affected area with stereotactic technique immediately,at 1st and 2nd week after inoculation of C6 cells.Three weeks after C6 cell inoculation,all rats were killed and the tumors were excised,then tumor volume was calculated and pathologically analysed,and immunohistochemical statining for GFAP, PCNA ang PTTG was performed.Results PTTG-ASODN could suppress the proliferation of C6 glioblastoma in a dose-and time-dependent manner.The inhibition effect was better when large-dose PTTG-ASODN was repeatedly used for glioblastoma as early as possible.Conclusion PTTG-ASODN can suppress the proliferation of glioblastoma,which may become a new strategy of gene therapy for glioblastoma.
5.Comparing different revascularization approaches on the prognosis of elderly patients aged 75 and over with diabetes and multi-vessel coronary artery disease
Hailong GE ; Dongmei SHI ; Yonghe GUO ; Wanjun CHENG ; Lixia YANG ; Yingxin ZHAO ; Yujie ZHOU
Chinese Journal of Geriatrics 2016;35(2):147-150
Objective To evaluate the clinical effects of two different revascularization approaches,one via percutaneous coronary intervention (PCI) with drug-eluting stents (DES) and the other via coronary artery bypass graft (CABG),on short-and long-term prognosis in elderly patients with diabetes and multi-vessel coronary artery disease.Methods A retrospective analysis was conducted on 254 elderly patients with diabetes and multi-vessel coronary artery disease.Based on the revascularization approach,patients were divided into the PCI group (n=93) and the CABG group (n =161).The incidence of major cardiovascular events (MACE) were observed during hospitalization and 1-year after follow-up.Results All-cause mortality and the incidence of non-fatal myocardial infarction were higher in the CABG group than in the PCI group during hospitalization [4.9% (8 cases) vs.1.1% (1 cases),5.6% (9 cases) vs.2.2% (2 cases),each P<0.05],while there was no significant difference in the incidence of MACE between the two groups1-year after follow-up (P> 0.05).The incidence of cerebrovascular events was lower in the PCI group than in the CABG group [2.2 % (2 cases) vs.6.2% (10 cases),P<0.05],while the rate of revascularization was higher in thePCI group than in the CABG group [6.5% (6 cases) vs.1.9% (3 cases),P<0.05].Cox regression analysis showed that diabetes (OR =1.65,95% CI:1.013-1.926,P =0.024) and left ventricular ejection fraction (OR =1.30,95 % CI:1.018-1.652,P =0.027) were independent risk factors for revascularization and cerebrovascular events.Conclusions MACEs during hospitalization are fewer in elderly patients with diabetes and multi-vessel coronary artery heart disease who received PCI than in those who received CABG.PCI has a similar mid-and long-term effect as CABG,bur PCI has a higher revascularization rate and lower risk of MACEs than CABG.
6.Clinial analysis of radioactivity uptake in thymus combined with serum thyroglobulin increase in differentiated thyroid cancer patients after high-dose 131I treatments
Yingxin LI ; Jian GONG ; Bin GUO ; Jingjie SHANG ; Yong CHENG ; Hao XU
Chinese Journal of Medical Imaging Technology 2017;33(7):985-988
Objective To investigate the incidence of radioactivity uptake in thymus combined with serum thyroglobulin (Tg) increase in differentiated thyroid cancer (DTC) patients after high-dose 131I treatments,in order to discuss the mechanism of thymus iodine uptaking and Tg increasing.Methods Retrospective analysis of the laboratory examinations and 131Iwhole body scan (131I-WBS) images in 316 DTC patients were performed.The radioactivity uptake in thymus and the Tg level were observed.Results Among 316 patients (total 735 case-times),4 patients of 5 cases-times 131I-WBS showed radioactivity uptake in thymus,accounting for 0.68% (5/735).All the radioactivity uptake in thymus were found by posttreatment 131I whole body scan (Rx-WBS) and after the second radioactive iodine treatment.For 1 of 4 patients,Rx-WBS still showed thymic uptake 131I after the third radioactive iodine treatment.The serum Tg increased in 3 patients (4 caestimes Rx-WBS) of radioactivity uptake in thymus with the Tg level before Rx-WBS was 13.80 μg/L,>300.00 μg/L,16.40 μg/L,20.60μg/L,respectively.Conclusion In order to avoid the inappropriate administration of radioiodine therapy,thymic uptake should be identified carefully in DTC patients whose radioactivity uptake is only found at the upper mediastinal and combined with serum Tg increase.
7.Application of near infrared diffuse correlation spectroscopy in noninvasive monitoring of tumor photodynamic therapy
Guoqiang YU ; Ran CHENG ; Jichun YANG ; Zhaoyong YANG ; Meixiu SUN ; Tianjun LIU ; Yingxin LI
International Journal of Biomedical Engineering 2013;36(3):134-138,150
A novel near-infrared (NIR) diffuse correlation spectroscopy (DCS) has recently been developed for noninvasive monitoring of tumor blood flow during photodynamic therapy (PDT).DCS offers several attractive new features for tumor blood flow measurement such as noninvasiveness,portability,low cost,high temporal resolution and relatively large penetration depth.DCS technology has been utilized for continuous measurement of tumor blood flow before,during and after PDT in both animals and humans.The ultimate goal is to predict treatment outcomes from the measured tumor hemodynamic responses to PDT.
8.Preliminary study on microRNA expression profiles of colonic cancer without lymph node metastasis
Yingxin WANG ; Xiaoyan ZHANG ; Baofeng ZHANG ; Kehao ZHANG ; Jing FANG ; Ying HU ; Ning ZHAI ; Ximei CHENG ; Hengjun GAO
Chinese Journal of Digestion 2009;29(2):114-117
Objective To investigate microRNA expression profiles of colonic cancer without lymph node metastasis and identify the specific microRNAs associated with carcinogenesis of colon.Methods Cancerous and para-cancerous tissues (5 cm from cancer tissues of the colon) confirmed without lymph node metastasis were collected from 3 patients. The microRNAs were extracted and isolated by mirVana RNA kit. Hybridizations were made by applying the microRNAs to Agilent microRNA microarray. Data analysis was done by software of Feacture Extraction. The discovered microRNAs were confirmed by real time PCR assay. Results Twelve out of 14 microRNAs associated with colonic cancer were up-regulated in colonic tissues. They were miR-106b, miR-135b,miR-18a,miR-18b,miR-196b, miR-19a, miR-224, miR-335, miR-424, miR-20a' , miR-301b and miR-374a. The rest two of miR-378 and miR 378* were down-regulated. Two up-regulated microRNAs (miR-18a and miR-135b) were detected in 3 pairs of cancerous and para-cancerous tissues. The expression level of miR-18a and miR-135b were accordant with the results of real time PCR.Conclusions microRNA.such as miR-106b,miR-135b.miR-18a.miR-18b,miR-196b,ect,were differentially expressed between cancerous and para-cancerous tissues.Many of these target genes are supposed to participate in the process of multiple tunmorgenesis.These microRNAs play an important role in the carcinogenesis of colon.
9.Treatment of complex coronary lesions by excimer laser coronary atherectomy:the initial experiences in China
Wei LIU ; Yujie ZHOU ; Yingxin ZHAO ; Dongmei SHI ; Yuyang LIU ; Zhiming ZHOU ; Yonghe GUO ; Wanjun CHENG ; Hailong GE ; Jianlong WANG ; Bin HU ; Xiaoli LIU
Chinese Journal of Interventional Cardiology 2016;24(9):511-514
Objective Excimer laser coronary atherecomy ( ELCA) has been recently used for the treatment of complex coronary lesions including calcified stenosis , chronic total occlusions and in-stent restenosis. Such complex lesions are difficult to adequately treat with balloon angioplasty and /or intracoronary stenting.The aim of this study was to introduce our early experiences in using ELCA in China . Methods Fifteen patients were enrolled through our center from March 2015 to April 2016 , and excimer laser coronary angioplasty was performed on 15 lesions.Eleven patients were previously failed cases either from uncrossable balloon ( 9 lesions ) or expandable balloon ( 6 lesions ) . The procedure and clinical endpoints were recorded .Results Laser catheter with 0.9 mm diameters were used in all 15 coronary lesions.All the lesions were successfully crossed with laser catheter and finally dilated with balloon .The procedural success rate was 100%.Drug eluting stents ( DES ) were implanted in 86.7% lesions and 2 cases were treated with drug eluting balloon .Clinical success was obtained in all patients (100%).There was no dissection , major side branch occlusion , spasm, no-reflow phenomenon nor acute vessel closure . Conclusions This study shows that laser-facilitated coronary angioplasty is a simple , safe and effective device for the management of complex coronary lesions .
10.18 F-FDG PET/MRI manifestations of gray matter heterotopia related to epilepsy
Yingxin LI ; Xueying LING ; Yongjin TANG ; Yong CHENG ; Hao XU
Chinese Journal of Medical Imaging Technology 2024;40(2):203-207
Objective To observe18F-FDG PET/MRI manifestations of gray matter heterotopia(GMH)related epilepsy.Methods Data of 27 patients with GMH and epilepsy diagnosed with MRI were retrospectively analyzed.Brain 18 F-FDG PET/MRI manifestations and complicated brain malformations were observed,and the classification of GMH were performed.Results Among 27 cases,periventricular GMH,focal subcortical GMH,subcortical lamellar(band)GMH and mixed GMH were detected each in 15,2,2 and 8 cases,respectively.Compared with cerebral white matter around the lesion or in the contralateral mirror area of the lesion,glucose hypermetabolism and glucose hypometabolism were found in 22 and 3 cases,respectively,while glucose metabolism was normal in 2 cases.Compared with gray matter in precentral gyrus,glucose hypermetabolism and glucose hypometabolism were observed in 8 and 16 cases,respectively,while glucose metabolism was normal in 3 cases.Six cases complicated with cerebral fissure deformity,6 cases with bilateral cerebellar hemispheric volume reduction,1 case with absence of pellucid septum and lower fornix,1 case with dysplasia of corpus callosum and 1 case with polymicrogyria.Conclusion 18 F-FDG PET/MRI manifestations of GMH related epilepsy had certain characteristics,which were helpful for clinical diagnosis.