1.Endoscopic treatment of septated chronic subdural hematoma With a report of 45 cases.
Wenchuan ZHANG ; Feng JIANG ; Jie MA
Chinese Journal of Minimally Invasive Surgery 2001;0(04):-
Objective To evaluate the therapeutic results of neuroendoscopy for the treatmentof of patients with septated Chronic Subdural Hematoma(SCHS). Methods 45 patients with SCSH were operated on under endoscope through a burrhole approach.neomembranes were resected by small microscissors.A closed drainage system was applied temporarily to ensure the efflux of the remaining hematoma. Results Forty-five cases were treated successfully.All patients had a sufficient or complete hematoma evacuation whithout recurrence of subdural hematoma.There was no subdural infection,bleeding,brainedema and cranial aerocele. Conclusions Neuroendoscopy is minimally invasive technique and have the advantages ot simple,effective,safe,less complication,less expensive and shorter hospitalization in the treatment of SCSH.
2.Notch signaling proteins and oncogenesis.
Feng GU ; Yong-jie MA ; Li FU
Chinese Journal of Pathology 2007;36(9):629-632
3.Association between Slit/Robo signal pathway and the genesis, progression, invasion and metastasis of malignant tumors.
Li ZHAO ; Feng GU ; Yong-jie MA
Chinese Journal of Oncology 2012;34(6):405-408
Apoptosis
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Cell Proliferation
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DNA Methylation
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Humans
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Intercellular Signaling Peptides and Proteins
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genetics
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metabolism
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Membrane Proteins
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genetics
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metabolism
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Neoplasm Invasiveness
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Neoplasm Metastasis
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Neoplasms
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metabolism
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pathology
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Neovascularization, Pathologic
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Nerve Tissue Proteins
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genetics
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metabolism
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Promoter Regions, Genetic
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Receptors, Immunologic
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genetics
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metabolism
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Signal Transduction
4.Relationship between methylenetetrahydrofolate dehydrogenase G1958A polymorphism and the susceptibility to neural tube defects:a meta-analysis
Chenkai MA ; Feng JIANG ; Lianping SUN ; Huiming JIN ; Jie MA
Journal of Clinical Pediatrics 2013;(6):565-569
10.3969/j.issn.1000-3606.2013.06.018
5.Femoral-deep femoral crossover bypass for unilateral iliofemoral arteriosclerosis obliterans
Tao MA ; Jie MA ; Qingsheng LU ; Zhiqing ZHAO ; Junmin BAO ; Xiang FENG ; Rui FENG ; Zaiping JING
Chinese Journal of General Surgery 2012;(11):893-895
Objective To evaluate the clinical results of femoral-deep femoral crossover bypass in the treatment of long-segment unilateral iliac artery occlusive disease.Methods From July 1995 to December 2010,40 patients (28 males,12 females,aged from 66 to 90,with mean age of 73) with comprehensive unilateral iliac-superficial femoral arteriosclerosis obliterans were enrolled in this procedure.All patients suffered from unilateral common iliac,external iliac,common femoral,and superficial femoral arteriosclerosis obliterans.These patients were treated with femoral-deep femoral crossover bypass.Postoperative ankle-brachial index,blood flow velocity and patency rates in 5,7 and 10 years and limb salvage rates in 5,7 and 10 years were evaluated.Results There was no perioperative mortality nor extremity amputation.35 (87.5% ) patients were followed-up from 1 to 13 years (mean 5.7 y).Anklebrachial index rose from preoperative 0.23 ± 0.10 to postoperative 0.55 ± 0.11 (t =15.91,P =0.000 ).Popliteal arterial velocity rose from preoperative ( 14 ±6) cm/s to postoperative (34 ± 10) cm/s (t =15.63,P =0.000) ; Tibial arterial velocity rose from ( 10 ±4) cm/s to (22 ±7) cm/s (t =15.71,P =0.000).The primary and secondary patency rates were 60.1%,44.3%,25.3%,and 93.5%,86.8%,57.9% at 5,7 and 10 years,respectively.Limb salvage rates were 97.5%,95%,and 90%,at 5,7 and 10 years,respectively.Conclusions Femoral-deep femoral crossover bypass is safe and reliable in treating certain unilateral iliofemoral occlusive disease,especially for high-risk old patients or those who are not indicated for endovascular therapies or direct aortic approaches.
6.Biological properties of differently-aged human keratinocytes:population doubling time growth curve and cell cycle analysis
Huiqun MA ; Jie FENG ; Lech CHYCZEWSKI ; Jacek NIKLINSKI
Journal of Pharmaceutical Analysis 2009;21(2):129-133
Objective To explore the biological properties of keratinocytes from differently-aged healthy human beings. Methods Keratinocytes from fetus, teenager and middle-aged groups were separated and cultured. The population doubling time (PDT) and cell growth curve in different cells were compared, and the cell cycles were analyzed by flow cytometry. Results ① In primary culture of keratinocytes, the adherence time in middle-aged group was longer than that in fetus and teenager groups. However, all cell morphology showed no obvioas differences. In subculture of kecatinocytes, with donator's age increasing, time of cell adherence prolonged, passage number decreused and differences in cell morphology were obrioas. ② The average PDT of keratinocytes was shorter in fetus group than in teenager and middle-aged groups. Bat difference in cell growth curve between different passages was not observed. ③ Keratinocytes showed G2/M period in fetus group but G0/G1 period in teenager and middle-aged groups mainly. Conclusion As age increases, the biological properties of keratinocytes change obviously.
7.Study on high-fluorescent cell for screening malignant hydrothorax or ascites
Luguang ZUO ; Ke MA ; Bo FENG ; Sutao ZHOU ; Jie LI
Chinese Medical Equipment Journal 2015;(9):78-80
To study the value of high-fluorescent cell for the screening of malignant hydrothorax or ascites. The clinical diagnosis results and hydrothorax or ascites specimens of 400 outpatients registered from January to December in 2014 were collected, and high-fluorescent cells were counted with Sysmex XE-5000 blood cell analyzer, and then stained for microscopy. Receiver operating characteristic (ROC) curve was used to explore the sensitivity, speci-ficity, positive likelihood ratio and negative likelihood ratio of high-fluorescent cell for screening malignant hydrothorax or ascites. The numbers of high-fluorescent cells of the cancer patients were significantly higher than those of the non-cancer patients, with Z equal to -7.372 and P less than 0.05. The values of the area under curve (AUC), sensitivity, specificity, positive likelihood ratio and negative likelihood ratio were 0.801, 70.67%, 84.31%, 4.50 and 0.35 respective-ly. Detection of high-fluorescent may be used to screen malignant hydrothorax or ascites, and further exami-nation and follow-up have to be performed in case the number of high-fluorescent cells in the hydrothorax or ascites is not less than 68.
8.Effect of rotational errors on the accuracy of positioning for head-neck tumors in radiotherapy
Shifei XU ; Huan FENG ; Haiyang LIU ; Jie HU ; Lu MA
Journal of International Oncology 2021;48(3):150-155
Objective:To study the effect of rotational errors on the positioning accuracy (PA) and to assess whether correcting rotation in patients with head-neck tumors in radiotherapy or not.Methods:The image information of 34 patients with head-neck tumors treated at Zhongnan Hospital of Wuhan University between August 2019 and January 2020 was collected. Mega-voltage computed tomography (MVCT) images of each patient were taken before radiotherapy, and were registered with planned kilo-voltage computed tomography (KVCT) images by two registration methods. All information was divided into control group (translation only) and intervention group (translation and rotation) according to different registration methods, there were 144 fractioned registered images for each group, respectively. The position errors of the two registration methods were recorded and compared. Data were carried out with Wilcoxon signed rank test and Spearman rank correlation.Results:Translational errors of the control group and the intervention group were 0.10 (5.35) mm and 0.00 (5.78) mm in right-left direction, and there was a statistically significant difference ( Z=-2.675, P=0.007); 0.75 (2.78) mm and 0.60 (2.68) mm in superior-inferior direction, and there was a statistically significant difference ( Z=-2.819, P=0.005); 0.10 (0.90) mm and 0.20 (1.28) mm in anterio-posterior direction, and there was a statistically significant difference ( Z=-3.984, P<0.001). Rotational errors of the intervention group were -0.20 (0.60)°, 0.35 (2.00)°, 0.00 (0.98)° in pitch, roll, yaw, respectively. The distribute of 3D vector corrected frequency for two groups was positively skewed. The corrected cumulative frequency (CCF) varied with 3D vector, 3D vector was 8.0 mm, and 19 F and 16 F fractioned treatments of the control group and the intervention group were not corrected, respectively; 3D vector was between 8.0-13.5 mm, the corrected tendency of the intervention group was slower and fractioned treatment was completed later. The analytical results of Spearman rank correlation showed that rotational errors in pitch were negatively correlated with translational errors of the control group in superior-inferior direction ( r=-0.182, P=0.029) and the intervention group in anterio-osterior direction ( r=-0.484, P<0.001); rotational errors in roll were negatively correlated with translational errors of the intervention group in right-left direction ( r=-0.334, P<0.001); rotational errors in yaw which were positively correlated with translational errors of the intervention group in right-left direction ( r=0.370, P<0.001) were negatively correlated with translational errors of the control group in superior-inferior direction ( r=-0.171, P=0.040) and the same was true for the intervention group ( r=-0.203, P=0.015); total angles were positively correlated and negatively correlated with translational errors of the control group in superior-inferior direction ( r=0.246, P=0.003) and anterio-posterior direction ( r=-0.188, P=0.024), and positively correlated with 3D vector of the control group ( r=0.198, P=0.017), total angles were positively correlated with translational errors of the intervention group in superior-inferior direction ( r=0.170, P=0.041) and with 3D vector of the intervention group ( r=0.239, P=0.004); there were no correlations between rotational errors and the other translational errors (all P>0.05). Conclusion:Although the corrected rotation increases translational errors in anterio-posterior direction and 3D vector, it improves PA for head-neck tumors in radiotherapy. When rotational errors are not corrected, rotational offsets are present with corrected translation to decrease its effect on PA.
9.Prenatal diagnosis of single gene disorders and role of multidisciplinary cooperative mode
Jingmei MA ; Hong PAN ; Jie FU ; Li YU ; Ling WANG ; Hui FENG ; Huixia YANG
Chinese Journal of Perinatal Medicine 2015;18(3):176-181
Objective To evaluate the trend in prenatal diagnosis of single gene disorders (SGD) and role ofmultidisciplinary cooperative mode.Methods In January l,2012,amultidisciplinarycooperativemode for SGD diagnosis was established in the Peking University First Hospital,involving Departments of Obstetrics,Pediatrics,Neurology,Dermatology and Central Laboratory.For each pregnant woman with a family history of SGD for prenatal diagnosis,propositus should be diagnosed in the relevant departments,and then further diagnosed,managed and followed up by the Obstetrics Department.Up to December 31,2014,of 6 681 women for prenatal diagnosis,279 women had a family history of SGD:76 of them received chorionic villus sampling (CVS) at 11-14 gestational weeks,and 203 received amniocentesis (AC) at 16-22 gestational weeks.The trend in SGD diagnosis and the safety of CVS and AC were analyzed using Chi-square test.Results The proportion of SGD family history in AC group was 3.2% (203/6 355),which stayed stable with 2.3% (47/2 054) in 2012,3.9% (78/2 023) in 2013 and 3.4% (78/2 278) in 2014,and there was no significant difference between 2013 and 2014 (x2=0.571,P=0.463).In CVS group,the proportion of SGD family history was 23.3% (76/326),showing an increasing trend with 18.2% (8/44) in 2012,17.6% (19/108) in 2013 and 28.2% (49/174) in 2014,and there were significant differences between 2013 and 2014 (x2=4.067,P=0.046).The proportion of SGD family history in CVS group was higher than in AC group in year 2012,2013 and 2014 (x2=42.626,44.531 and 201.400,all P=0.000).Among the 279 cases of SGD family history,no complications and adverse outcome were observed except an intra-uterine fetal death occurring 6 months after CVS in one woman,but 3 fetuses were found to have chromosome anomalies with one trisomy 18,one 45,X,and one mosaicism of 45,X/46,XY which was determined to be normal by AC.Conclusions SGD family history is one of the important indicators in prenatal diagnosis,and CVS is feasible for prenatal diagnosis of SGD family history as early as in the first trimester.Multidisciplinary cooperative mode is helpful in SGD family history diagnosis.
10.Abscisic acid inhibits proliferation of human hepatocarcinoma cells
Yonggang LU ; Jing TAN ; Jie ZHANG ; Lanqing MA ; Feng GUO ; Yongzhang GUO
Basic & Clinical Medicine 2006;0(04):-
Objective To investigate the mechanism of Depression proliferation in human hepatocarcinoma cells by Abscisic acid.Methods To detect protein expression o of P53,Ki-67 and Cyclin D1 by immunocyte chemistry; detect mRNA expression of P53 and telomerase by RT-PCR. Results The protein expression level of mtP53, Cyclin D1, Ki-67 and the mRNA expression level of mtP53 and hTERT all decreased in cells treated by ABA,HMBA and ABA+ HMBA(P