1.Study on early diagnostic methods for sub-clinical hepatic encephalopathy
Xiaorong DAI ; Jie CHEN ; Yaping GUO
Journal of Clinical Neurology 1993;0(03):-
Objective To investigate the early diagnostic methods for sub-clinical hepatic encephalopathy (SHE).Methods 46 hepatocirrhosis patients without hepatic encephalopathy (SHE group) were recruited to perform P300, brainstem auditory evoked potential (BAEP), numeral connection teat (NCT),mini-mental state examination (MMSE)and electroencephalogram (EEG), compared with 43 unhepatopathy patients (control group) and within following up.Results The P300 delitescence and the NCT value in SHE group were obviously longer than those of the control group (allP
2.Influence of RNA interference in p53 gene on the expressions of genes involved in ultraviolet B-induced premature senescence and photocarcinogenesis in human skin fibroblasts
Wenqi CHEN ; Zhigang BI ; Jie DAI ; Xiaorong ZHANG ; Huijuan XU
Chinese Journal of Dermatology 2014;47(4):259-262
Objective To evaluate the effect of RNA interference in p53 gene on the expressions of genes involved in ultraviolet B (UVB)-induced premature senescence and photocarcinogenesis in human skin fibroblasts (HSFs).Methods A previously established HSF cell clone with repressed expression of p53,which was named as HSF-p53,was cultured and irradiated with a subcytotoxic dose (10 mJ/cm2) of UVB once a day for five consecutive days.The HSFs with normal expression of p53 served as the control.Subsequently,β-galactosidase (SA-β-gal)-staining was performed to estimate the degree of senescence,quantitative real-time PCR array was performed to determine the mRNA expressions of photocarcinogenesis-and senescence-associated genes,including p53,p21,p19,p16,pRb,fibronectin,osteonectin,smooth muscle 22 (SM22),bax,bcl-2,hypoxia-inducible factor-1 α (HIF-1α),vascular endothelial growth factor(VEGF),and human double minute-2 (hdm2).Statistical analysis was carried out by Student's t test using the software SPSS 10.0.Results The percentage of SA-β-gal-positive cells in irradiated HSF-p53 was 19.70% ± 0.85%,significantly higher than that in unirradiated HSF-p53 (12.77% ± 0.81%,t =6.45,P < 0.05),but lower than that in irradiated control HSFs (50.48% ± 5.30%,t =7.86,P < 0.05),and similar to that in unirradiated control HSFs (18.50% ± 0.45%,t =2.57,P > 0.05).Compared with the control HSFs,the HSF-p53 showed decreased expressions of p21,p19,fibronectin,osteonectin,SM22 and bax genes (all P < 0.05),but increased expressions of bcl-2,HIF-1α,VEGF and hdm2 genes (all P < 0.05),and a similar expression of p16 gene (P > 0.05); the repeated UVB radiation significantly promoted the expressions of p16 and pRb genes (both P < 0.05),but had no obvious effect on the expressions of the other genes in HSF-p53 compared with unirradiated HSF-p53 (all P > 0.05).Conclusions The inhibition of p53 expression may decelerate the UVB-induced premature senescence in HSFs,which may be involved in the p53-dependent tumor suppression.
3.Study on the Clinical Effects of Endoprothese in the Palliative Treatment of Malignant Obstructive Jaundice
Fang DAI ; Xinhua HUANG ; Yong CHEN ; Yanhao LI ; Jie ZHOU
Journal of Practical Radiology 2001;0(10):-
Objective The clinical effects of endoprotheses in the palliative treatment of malignant biliary obstruction were evaluated.Methods The palliative treatment of endoprothese in 74 cases(including 42 Wallstents and 32 plastic stents )were analyzed retrospectively.Results There were remarkable effects on reducing the level of serum bilirubin and improving the symptoms.The bilirubin was decreased more obviously in the first week,and tended to normal in 3 weeks.Stenting was performed on upper bileduct obstruction mostly(accounted for 52.7%).The early complications were less;late complications were blockage mainly.The half-year obstructive rate in metal stent group was 19%;plastic stent 25%.Average stent patency was 214 days in metal stent versus 122 days in plastic stent.Conclusion Endoprotheses are an efficient means of treating malignant biliary strictures and reducing the level of serum bilirubin,particularly of upper biliary obstructions.As its micro-invasion,it is fit for old age and asthenic (such as dyscrasia),whose survival time may be shorter(estimated less than 6 months),doctor may choose metal stent.If patient is impoverished,the doctor could use plastic stent.
4.Bone SPECT and CT fusion imaging in pediatric neuroblastoma
Wei, DONG ; Mei, LI ; Hao-jie, DAI ; Hui-dong, CHEN
Chinese Journal of Nuclear Medicine 2011;31(6):386-389
ObjectiveTo evaluate the diagnostic performance of bone SPECT and CT fusion imaging in bone metastases from pediatric neuroblastoma.MethodsTwenty-four pediatric patients with neuroblastoma were included in this retrospective study.All patients underwent planar imaging and SPECT integrated with CT.Lesion visibility,diagnostic certainty and diagnostic performance were evaluated with KolmogorovSmirnov test andx2 test.ResultsLesion visibility of SPECT alone,SPECT integrated with CT were significantly better than that of planar imaging ( both H =69.000,P < 0.05 ).SPECT and CT fusion imaging,SPECT alone both detected five more bone lesions than planar bone imaging (77 vs 72).The diagnostic accuracy of SPECT imaging (62.34%,48/77 )was significantly higher than that of planar imaging (45.45%,35/77; x2 =4.416,P < 0.05 ).The sensitivity,specificity and accuracy of SPECT and CT fusion imaging for diagnosing malignant bone lesions were significantly higher than those of planar imaging:82.35% (42/51) vs 53.19% ( 25/47),88.46% ( 23/26 ) vs 40.00% ( 10/25 ),84.42% ( 65/77 ) vs 45.45% (35/77 ; x2 =12.571,14.016,25.667,all P < 0.01 ).The diagnostic specificity and accuracy of SPECT and CT fusion imaging were significantly higher than those of SPECT alone ( 53.85%,14/26 ;62.34%,48/77) (x2 =7.589,9.606,both P <0.01 ).However,there was no significant difference of sensitivity between the two methods (x2 =2.942,P > 0.05 ).Diagnostic certainty by SPECT and CT fusion imaging was significantly higher than that by SPECT alone ( H =28.000,P < 0.05 ) and by planar imaging (H =21.000,P < 0.05).ConclusionSPECT and CT fusion imaging can detect more bone lesions in patients with pediatric neuroblastoma.It is helpful for diagnosing bone metastases from pediatric neuroblastoma.
5.The value of contrast enhanced ultrasound in diagnosing type Ⅰ and Ⅱ endoleaks after endovascular abdominal aortic aneurysm repair
Jie ZHANG ; Xiangchen DAI ; Ming XIAO ; Nan KANG ; Jiangqiong CHEN
Chinese Journal of Ultrasonography 2017;26(4):296-301
Objective To investigate the role of contrast enhanced ultrasound (CEUS) in detecting type Ⅰ and Ⅱ endoleaks after endovascular abdominal aortic aneurysm repair (EVAR).Methods PostEVAR patients who met the inclusion criteria were enrolled.All of patients underwent CEUS and computer tomography angiography (CTA) examination.The following parameters were evaluated:ultrasound contrast agent within aneurysmal sac,location and source of endoleaks,wash-in time of endoleaks and stentgraft since contrast agent injection.Analysis was performed to observe different types of endoleak features in CEUS.Results Nine cases were enrolled and all the cases had endoleaks.Three cases were type Ⅰ,6 cases were type Ⅱ.The wash-in time of type Ⅱ endoleaks delayed 9.8 seconds compared to type Ⅰ,and the results of CEUS diagnosis were consistent with CTA.Conclusions CEUS is an effective way to detect endoleaks.This technique can be used as a supplement for CTA in follow-up of post-EVAR patients.
6.Effects of adrenal gland on the expression of bax and bcl-2 in hippocampus after cerebral ischemia
Hong NI ; Chao FENG ; Jie CHEN ; Jianning SONG ; Haitao DAI
Chinese Journal of Pathophysiology 2000;0(08):-
0.05).The expression of bcl-2 in sham group was significantly higher than that in GC and ADX groups(P0.05)was observed.The ratio of bax to bcl-2 in sham group was significantly lower than that in GC and ADX groups(P
7.Practice and Exploration of the Construction of an Ethics-based Blood-bank Culture
Han CHEN ; Suna DAI ; Xihui TIAN ; Jie ZHANG
Chinese Medical Ethics 1994;0(06):-
This paper makes a tentative exploration in the feature and responsibility of blood-bank,ethical significance embodied in the without-payment blood donation system,and the three particular ethics-based practices in Beijing Red Cross Blood-bank including "Street Corner Donation Volunteers","Involvement of Competent Blood-bank Staff in the Blood Donation",and "Community of Rare Blood Types",thus providing an account of the blood-bank culture construction from the perspectives of ideological construction,scientific development,humanistic service,and connotation construction,etc.
8.The summary of experience and effect observation of cochlear implants in adults with different causes.
Ye YANG ; Xiaoyun QIAN ; Jie CHEN ; Yanhong DAI ; Feng CHEN ; Chenjie YU ; Xiaohui SHEN ; Xia GAO
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2014;28(16):1196-1200
OBJECTIVE:
This article summarizes the matters warranting consideration in adult cochlear implants before and after operation with different deafness causes and investigates the impact of etiological variables that affect hearing and speech ability rehabilitation after cochlear implantation.
METHOD:
We retrospectively reviewed the preoperative data of 30 adults who have received cochlear implantation, switch on, and periodical post operative mapping. 'Nijmegen Cochlear Implant Questionnaire' was used for every patient during follow-up and test their hearing thresholds at one year after switched-on. The average score of every patient in the six aspects of questionnaire, along with the average hearing threshold, has been gathered.
RESULT:
The average hearing threshold of every patient is lower than 35 dBHL. The average score of 28 patients is more than or equal to 75 in the basic sound perception, advanced sound perception as well as self-esteem. The average score of 26 patients is more than or equal to 75 in capacity for action. Besides, as for sociability and speech ability, the average score of 22 patients is more than or equal to 75.
CONCLUSION
Auditory perception can be greatly improved regardless of deafness causes, on the premise that appropriate candidate is selected. The primary disease should be brought under control before and after the operation. The influence of various causes to the language ability rehabilitation largely depends on the development of the language center at deafness onset. Self-esteem and social identity can be significantly enhanced after cochlear implantation in adult patients, particularly those with acquired deafness.
Adolescent
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Adult
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Aged
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Auditory Perception
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Cochlear Implantation
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psychology
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Follow-Up Studies
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Humans
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Middle Aged
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Retrospective Studies
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Self Concept
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Social Identification
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Treatment Outcome
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Young Adult
9.Expression levels of ubiquitin C-terminal hydrolase-LI and serum glial fibrillary acidic protein and its clinical significance in patients with acute cerebral infarction
Chongling HU ; Xinling YANG ; Deqiang MAO ; Silong LOU ; Qinbi DAI ; Jie CHEN ; Xing CHENG ; Shiqiang WANG
Journal of Central South University(Medical Sciences) 2017;42(3):284-290
Objective:To determine expression levels of ubiquitin C-terminal hydrolase-L1 (UCH-L1) and serum glial fibrillary acidic protein (GFAP) in patients with acute cerebral infarction and their clinical significance.Methods:A total of 80 patients with acute cerebral infarction in Chongqing Cancer Hospital from January 2014 to February 2016 were enrolled as an observation group.Another 80 healthy people served as a control group.The expression levels of UCH-L1 and GFAP in the 2 groups were detected.Results:Sensibility and specificity for UCH-L1 and GFAP were 75.0%,87.5% and 81.3%,90.0%,respectively.Receiver operating characteristic curve areas of UCH-L1 and GFAP were 0.670 and 0.757,respectively.There were no significant significance in age,gender,drinking,smoke,diabetes,and hyperlipidemia in the 2 groups (P>0.05).High blood pressure rate in the observation group was higher than that in the control group (P<0.05).Spearson/Pearson analysis showed that serum UCH-L1 and GFAP levels were positively correlated with hypertension,but they were negatively correlated with sex,age,diabetes,hyperlipidemia,alcohol consumption,smoking,and other factors.General data at different time in the observation group was not statistically different (P>0.05).The expression levels of UCH-L1 and GFAP in the observation group was higher than that in the control group (P<0.05).UCH-L1 and GFAP levels at different time in the 2 groups were not statistically different (P>0.05).UCH-L1 and GFAP levels in the light,medium,and heavy groups were higher than those in the control group (P<0.05),while UCH-L1 and GFAP levels in the medium and heavy groups were higher than those in the light group (P<0.05).There was significant difference between levels of UCH-L1 or GFAP and infarction size at different time in the observation group (P<0.05).The results of Pearson correlation analysis showed that the levels of serum UCH-L1 and GFAP were positively correlated (r=0.634,P=0.001).Conclusion:The levels of serum UCH-L1 and GFAP are significantly increased at the early stage of acute cerebral infarction,and they have a certain correlation with the severity of cerebral infarction,which can provide a basis for early clinical diagnosis and treatment.
10.Clinical research on application of selective β receptor blockers on patients with chronic obstructive pulmonary Disease
Binbin QIN ; Lili DAI ; Xiaohong CHEN ; Jie FENG ; Ye JIN ; Bin SHEN ; Ying FANG
Clinical Medicine of China 2015;31(7):604-606
Objective To evaluate the safety and effectiveness of the treatment by selective β 1 receptor blockers on patients with chronic obstructive pulmonary disease (COPD).Methods Eighty cases of COPD Ⅲ (stable period) inpatient with or without coronary heart disease were collected in The Second People's Hospital of Shanghai from September 2012 to November 2013.The patients were randomly divided into testing group (Metoprolol treatment group) and control group (regular treatment group) with 40 cases for each group.Metoprolol group therapy based on the use of conventional metoprolol tablets,an initial dose of metoprolol 12.5 mg/d,titrated to the appropriate dose based on heart rate and tolerance of the morning resting heart rate of 55 to 60 times/min that reached the target dose of metoprolol continuous medication for 12 months.Blood gas analysis were recorded before and after treatment,pulmonary function,and 6 min walk test (6MWT) and were chronic lung disease Assessment Test (CAT) Rating.The control group was administrated regular treatment while the testing group added small dose of Metoprolol with titration to an appropriate dose on this basis.12 months in a row,and assessed the end stage.Results (1) After the application of selective β receptor blockers on testing group,no statistically significant difference (P>0.05) in the values of FEV1 in anticipation value% (testing group:(45.45 ± 4.68) % vs.(43.32 ± 4.84) %;control group:(44.23 ± 4.68) % vs.(42.58 ±4.24)%),PaO2(testing group:(75.92± 10.78) mmHg vs.(74.86± 11.21) mmHg;control group:(70.23 ±6.45) mmHg vs.(72.36±7.28) mmHg) and PaCO2(testing group:(46.28±8.28) mmHg vs.(47.46±10.22) mmHg);control group:(44.54 ± 8.89) mmHg vs.(42.36 ± 7.45) mmHg) before and after treatment.But the 6MWD (testing group:(287 ± 23) m vs.(384± 34) m;control group:(284 ± 25) m vs.(295 ±21) m) and COPD appraisal test(CAT) (testing group:(21±7) score vs.(17±6) score);control group:(22 ±5) score vs.(20± 6) score) had improved significantly compared with that before treatment,with significant difference(t=4.903,4.784;P<0.05).Conclusion Selective β receptor blockers have no effect on the airway resistance of COPD patients and reduction on pulmonary function.It can also increase the exercise tolerance and enhance the living quality for improving clinical prognosis.