1.The lesion distribution pattern of poststroke pathological laughing and crying:an MRI study
Chinese Journal of Behavioral Medicine and Brain Science 2017;26(3):220-225
Objective To explore the lesion distribution pattern of poststroke pathological laughing or crying (PSPLC) by using MRI,and to discuss its pathogenesis. Methods All 24 cases selected from stroke patients who were treated in the department of neurology from May 2012 to December 2015 and had complete follow?up information after their discharge through 6 months were screened for pathological laughing and crying( PLC) . MRI characteristics of cases were analyzed retrospectively to identify lesion distribution. 28 cases with acute isolated pontine infarction who did not demonstrate PLC were enrolled as a comparison group. Lesion pattern difference between 14 cases of the pontine infarction with PLC and 28 cases of acute i?solated pontine infarction without PLC was compared. Results In these 24 cases,the highest occurrence rate of PLC was 41.67% in the second month. 15 cases had forced crying (62.5%),3 cases had forced laughing (12.5%),6 cases had pathological laughing or crying (25%). MRI studies showed lesion location in the left side were 3 cases,in the right side were 1 case,in the bilateral brain were 20 cases,in the basal ganglia were 9 cases,in the thalamus were 8 cases,in the corona radiata were 6 cases,in the semioval center were 5 cases, in the cerebral cortex were 4 cases,in the cerebellum were 4 cases and in the brain stem were 14 cases. In the cases of PLC with brain stem lesion,only 1 case was isolated pontine infarction,the other patients all combined with lesions of other parts. Compared with the pontine infarction with PLC,the isolated pontine in?farction without PLC was more likely to suffer with unilateral brain lesions(71%vs 50%),but there was no significant difference (χ2=0.844, P=0.358) . Conclusion PSFLC is not a rare complication after stroke, which is associated with multiple site of brain involvement especially pontine infarction.
2.Clinical significance of serum TPOAb monitoring during 131I treatment in patients with Graves' disease
Yanghang LI ; Feng CHEN ; Liu LIU
International Journal of Laboratory Medicine 2009;30(10):960-962
Objective The investigate the clinical significance of serum anti-thyroid peroxidase antibody(TPOAb)monitoring in therapeutic effect judgment and prognosis evaluation during 131I treatment in patients with Graves disease.Methods A total of 112 patients with Graves disease(hyperthyroidism group)and 50 healthy controls(healthy control group)were enrolled in the investigation.Serum concentration of TPOAb was measured with chemiluminescent immunoassay(CLIA)in healthy control group and hyperthyroidism group(at time points of 0,3,6,12 and 24 months after 131I treatment,i.e.T0,T3,T6,T12 and T24).Variance analysis and t test were adopted.Results The mean level of TPOAb was significantly higher in patients with Graves' disease before 131I treatment than that in healthy controls(P<0.01).In hypenthyroidism group,serum concentration of TPOAb was evidently higher at T3[(108.94±70.15)IU/mL]than T0[(81.95±47.64)IU/mL](P<0.01);TPOAb level began to decline at T6[(42.78±28.68)IU/mL],but still higher than that of healthy control group;while where was no statistical difference in TPOAb level between hyperthyroidism group at T24[(7.89±4.01)IU/mL]and healthy control group(F>0.05).Conclusion Serum level of TPOAb before treatment may be used as an auxiliary indicator of 131I dosage.Posttreatment TPOAb level monitoring contributes to therapeutic effect evaluation,follow-up visit and immunorcaction state understanding.
3.Diagnosis and treatrment of 68 patients with early postoperative inflammatory small bowel obstruction
Feng GAO ; Hailong LIU ; Yajun CHEN
Chinese Journal of Primary Medicine and Pharmacy 2012;19(12):1787-1788
Objective To investigate the clinical features of early postoperative inflammtory small bowel obstruction,and discuss its diagnosis,treatment and preventive measures.Methods The clinical data of 68 cases of early postoperative inflammatory small bowel obstruction were analyzed retrospectively.Results Within the 68 cases,65 cases were cured by non-operative treatment including gastrointestinal decompression,anti-inflammatory drugs,somatostatin,total parenteral nutrition(TPN) and traditional Chinese medicine.The mean time from the onset of symptoms to the recovery of bowel function was 14 days.Three cases were cured by transferring to operation.One case of them was transferred to operation for strangulated intestinal obstruction during the period of conservative treatment.One case underwent oper.ion because the patient didn t recover after 4 weeks expectant treatment.One case underwent operation for the impatience with the conservative treatment of both the doctors and the patient.Conclusion Non-operative therapy should be the first choice for the treatment of early postoperative inflammatory small bowel obstruction,and its therapeutical effect was well-accepted.
4.Genotyping and resistant mutants analysis of P gene in HBV fragment sequencing
Aiying CHEN ; Feng YE ; Xiuying LIU
Chinese Journal of Laboratory Medicine 2012;35(8):726-729
Objective To establish a method for efficient,accurate genotyping and nucleoside drug-resistant mutation analysis for hepatitis B virus ( HBV ).Methods The 48 HBV serum samples were collected from the Third People's Hospital of Taiyuan from July to August 2011,and HBV DNA were extracted using the commercial kit.The HBV whole genome and P gene were amplified and sequenced.Each HBV sample was genotyped by both constructing phylogenetic trees and genotyping software analysis.The results from two strategies were compared for every sample.Results A total of 48 HBV full genome sequences were identified into 12 B and 36 C genotype's by both constructing phylogenetic trees and genotyping software analysis,which was exactly the same as the analysis using P gene fragment sequencing.Seven forms of nucleoside drug-resistant mutation were found in the P gene for all the samples,with the ratio of 27.1% ( 13/48 ),in which all the mutation forms were associated with lamivudine or adefovir,and no other nucleotide drugs-related resistance mutations existed.In addition,there were 11 B and 35 C genotype and 2 B/C hybrid type with the analysis using Real-time PCR genotyping for the 48 samples.Conclusion P gene sequencing can be used as a new clinical method for efficient,accurate HBV genotyping and resistant mutation analysis,which provides guidance for hepatitis B treatment.
5.The correlation between insulin sensitivity and human erythrocyte memberane phospholipid in elderly diabetic patients
Yunling LIU ; Shaohua CHEN ; Feng YUE
Chinese Journal of Geriatrics 2003;0(08):-
ObjectiveTo study the correlation between human erythrocyte membrane phospholipid profile and insulin sensitivity in elderly diabetic patients. MethodsThe levels of phosphatidylcholine (PC), phosphatidylserine(PS),phosphatidtlinostiol(PI),phosphatidylethanolamine(PE),the maximum erythrocyte deformation index(DImax) , the maximum erythrocyte aggregation index(AImax) and glucose disposal contant Ki (KITT) were measured in 32 cases of elderly diabetics and 30 healthy old subjects. ResultsThe KITT was lower in diabetic patients than in normal controls (P
6.Construction of HBsAg gene recombinant adenoviruses and packing in 293 cells
Feng CHEN ; Xinhua ZHAO ; Anmin LIU
Chinese Journal of Immunology 1999;0(12):-
Objective:After construction and identification of HBsAg gene recombinant backbone adenoviral vector,it is to prouduct HBsAg gene recombinant adenoviruses by packing PAd-Easy-1-HBs in 293 cells.Methods:The gene of interest was amplified from plasmid pEcob-6 PCR, the gene of interest which contained HBsAg gene was cloned into on adenoviral shuttle vector pAd-track-cmv. The pAd-track-cmv-HBs was linearized by digesting with restriction endonuclease Pme-1, and subsequently cotransformed into E.coli BJ-5183 cells with an adenoviral backbone vector pAd-Easy-1, Homologous recombinants were performed in bacterial cells. Finally, the linearized backbone adenoviral vector was transfected into adenoviruses packing cells lines,e.g. 293 cell by lipofectamine transfection. Transfections and viral productions can be minotored by green fluorescent protein(GFP). The expression of HBsAg in supermatant was investigated by ELISA. It was a certain HBsAg vaccine to amplify recombinant adenoviruses by repeating the infevtion cell to collect the viral supermatant.Results:GFP expression was visible by fluorescence microscopy after transfection. Adenoviral titer was monitored by GFP expression. GFP expression was visible after repeating the infection cell using the viral supernatant in more than 90 percent of the cells.The HBsAg also expressed in supermatant.Conclusion:HBsAg gene recombinant adenoviral backbone vector has been constructed successfully. HBsAg gene recombinant adenoviruses have been producted by packing in 293 cells. The study provides the possibility of further researches on the development of new anti-HBV vaccines.
7.Investigation and analysis of preventive antibacterial drugs used in type Ⅰincision operation
Feng CHEN ; Sheng YAO ; Feide LIU
Journal of Regional Anatomy and Operative Surgery 2016;25(4):297-299
Objective To analyze the situation and trend of the application of antibacterial drugs in the case of typeⅠincision operation in our hospital.Methods A total of 1 964 patients in our hospital from 2010 to 2014 were randomly selected,and the changes of antimicrobi-al drugs during the treatment period were analyzed.The surgical site infection probability and antimicrobial application rules in typeⅠincision surgery in 3 years,including probability,category,first time and duration of drug use,and the relationship between antibacterial drugs and typeⅠincision infection were analyzed.Results Application of antibacterial drugs in typeⅠincision operation probability decreased significant-ly,and the surgical infection probability decreased year by year,with statistically significant difference(P<0.05).The first application of an-tibacterial drug time was more reasonable,the choice of antimicrobial drugs were mainly one generation or two generation of Cephalosporin. There was a significant increase in the probability of stopping medication within 2 days after surgery,and the difference was statistically signif-icant(P<0.05).Conclusion The application of antibiotics should be strictly applied to the application of the indications for the use of anti-biotics.To understand the scope of application of antimicrobial drugs,and should try to shorten the use of time,control of infection during peri-operative period,reduce drug resistance.
8.Investigation on Mobile Phone Based Thermal Imaging System and Its Preliminary Application.
Fufeng LI ; Feng CHEN ; Jing LIU
Chinese Journal of Medical Instrumentation 2015;39(3):173-176
The technical structure of a low-cost thermal imaging system (TIM) lunched on a mobile phone was investigated, which consists of a thermal infrared module and mobile phone and application software. The designing strategies and technical factors toward realizing various TIM array performances are interpreted, including sensor cost and Noise Equivalent Temperature Difference (NETD). In the software algorithm, a mechanism for scene-change detection was implemented to optimize the efficiency of non-uniformity correction (NUC). The performance experiments and analysis indicate that the NETD of the system can be smaller than 150 mK when the integration time is larger than 16 frames. Furthermore, a practical application for human temperature monitoring during physical exercise is proposed and interpreted. The measurement results support the feasibility and facility of the system in the medical application.
Algorithms
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Body Temperature
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Cell Phone
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Humans
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Infrared Rays
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Mobile Applications
9.Effect of Electroacupuncture on Learning and Memory Ability for Cerebral Ischemia/Reperfusion Injured Rats
Xiaodong FENG ; Jiao LIU ; Lidian CHEN
Chinese Journal of Rehabilitation Theory and Practice 2013;19(3):227-23O
Objective To observe the effect of electroacupuncture at Shenting (DU24) and Baihui (DU20) on learning and memory ability,as well as the finding of histopathology and the expression of mRNA of nuclear factor κB p65 (NF-κB-p65) and its inhibitor (IκB) in the hippocampus of rats with cerebral ischemia/reperfusion (I/R) injury. Methods 45 male Sprague-Dawley rats were were randomly diveded into sham control group (SC, n=15), ischemia control group (IC, n=15) and electroacupuncture group (EA, n=15). The latter 2 groups were modeled as focal cerebral I/R injury, and the EA group received electroacupuncture at Shenting (DU24) and Baihui (DU20) for 14 d. They were evaluated with the step down test, their hippocampus was observed under HE staining and the level of NF-κB-p65 and IκB mRNA was determined with RT-PCR 14 d after modeling. Results The frequence of shock was less, and the latency jumping down from the safe platform was longer in the EA group than in the IC group (P<0.001). The damage of the nerve cell and the expression of NF-κB-p65 mRNA significantly decreased and the expression of IκB mRNA increased in the EA group compared with those of IC group (P<0.001). Conclusion The inhibition of NF-kB-p65 might mediate the recovery of learning and memory impairment after electroacupuncture for cerebral ischemia.
10.The effects of glycosylated LDL on intracellular[Ca~(2+)]and cholesterol deposition
Yi FENG ; Naifeng LIU ; Rixin CHEN ;
Chinese Journal of Diabetes 1995;0(04):-
The changes of[Ca~(2+)]and metabolism of lipid in human monocyte-macrophages as inter- acted with glycosylated LDL(glc-LDL)were observed.The intracellular[Ca~(2+)]was higher than that of LDL(P