1.Compound flaps of foot with joint transplantation bridging severed segmental damage type finger
Zhongjian SUN ; Peng XU ; Changxin YUAN ; Jiaxiang TIAN ; Zhong PENG
Chinese Journal of Microsurgery 2015;38(1):48-51
Objective To investigate the clinical effect of the compound flaps of foot with joint transplantation bridging severed segmental damage type finger.Methods Eleven cases with segmental composite tissue damaged fingers,emergency free with plantar metatarsal or metatarsophalangeal,interphalangeal joint of the foot com posite tissue flap transplantation and bridging replanted finger form February,2006 to September,2011 were retrospective reviewed in our study.The therapeutic effect was evaluated according to the assessment standard of Chinese Medical Association of Hand Surgery.Results All patients were followed-up for 6 to 48 months.The composite flap and amputated fingers in the 11 cases were survived after surgery,with satisfactory appearance.Range of motion of interphalangeal joints from 40° to 90°,and metacarpophalangeal joints from 45° to 65°.There was no nonunion or refracture.Two-point discrimination of finger pulp was 5-8 mm.According to the Chinese Medical Society of Hand Surgery Trial upper part of the standard evaluation function assessment,the results were excellent in 3 cases,good in 6 cases,may in 2 case.Conclusion Compound flaps of foot with joint transplantation bridging severed segmental damage type finger could recover the appearance and functions of amputated fingers to satisfy the daily need of patients in a maximum degree.
2.Value of color Doppler flow imaging in diagnosis of choroidal melanoma
Bin PENG ; Bin SUN ; Yougang SUN ; Xu ZHANG
Chinese Journal of Ultrasonography 1993;0(02):-
Objective To evaluate the value of color Doppler flow imaging(CDFI) in diagnosis of choroidal melanoma.Methods A comparative analysis was carried retrospectively on sonograms,pathological and clinical data of 13 choroidal melanoma cases,confirmed by pathology and operation.Results The pre-operative diagnosing rate of choroidal malignant melanoma by CDFI in the study was 100%.The sonogram features were divided into three types: hemispherical type,mushroom type and diffusive type.Conclusions Characters of blood flow signal of intraocular occupying lesions were valuable to distinguish choroidal malignant melanoma from other diseases.
3.Study on protective effect of Sijunzi decoction (red/white ginseng) on H2O2-induced H9c2 cardiomyocytes apoptosis.
Na SUN ; Gang XU ; Fan ZHANG ; Shan XU ; Peng-peng LIU ; Tian-zhu JIA
China Journal of Chinese Materia Medica 2015;40(10):1989-1993
In this study, efforts were made to screen out the drug concentration of Sijunzi decoction (red ginseng) for in vitro intervention of H9c2 cardiomyocytes, select high, medium and low groups for subsequent experiments, establish the H2O2-induced myocardial cell apoptosis to investigate the protective effect of Sijunzi decoction (white/red ginseng), provide reference ginseng ingredients in Sijunzi decoction used to treat ischemic heart disease and reflect its curative effect, and observe its impacts on SOD, MAD, LDH and other indexes to preliminarily define the action mechanism. According to the results, red ginseng in Sijunzi decoction showed a better protective effect on H2O2-induced myocardial cell injury than that of white ginseng. Both of them could enhance SOD activity and reduce MDA production and LDH release, so as to significantly reduce the amount of apoptotic myocardial cells and play protective role.
Apoptosis
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drug effects
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Cell Line
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Drugs, Chinese Herbal
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pharmacology
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Humans
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Hydrogen Peroxide
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toxicity
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Myocytes, Cardiac
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cytology
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drug effects
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Oxidative Stress
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drug effects
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Panax
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chemistry
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Protective Agents
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pharmacology
4.Epidemiological investigation of HPV infection of the females in Chongqing city
Congcong SUN ; Shuang LIANG ; Peng JIANG ; Biao XU ; Jia WANG
Chongqing Medicine 2016;45(36):5136-5138
Objective To investigate the infection status of human papillomavirus (HPV) of females in Chongqing city ,in or‐der to provide scientific references for prevention of HPV infection and control of early cervical lesions .Methods The detection re‐sults of cervical cytology screening for 19 860 females in the University‐Town Hospital of Chongqing Medical University ,the First Affiliated Hospital of Chongqing Medical University and a county‐level hospital in Chongqing from January 2012 to January 2015 were collected ,and the HPV typing data were analysed .Results Among the 19 860 females ,5 681 females were infected with HPV ,the infection rate was 28 .61% .Due to the presence of multiple infection ,the actual infection frequency of HPV subtypes in 5 681 females was 8 906 .The infection frequency of high‐risk subtypes ,including multiple infections ,was 6 166 (accounted for 69 .23% ) .According to the probability of infection ,the top eight rate of subtype infection was HPV 52 ,16 ,58 ,6 ,CP8304(81) ,33 , 53 and 18 .The positive rate of single HPV infection was 19 .38% ,the positive rate of multiple infection was 8 .74% ,in which doub‐le infection was the main infection model .The infection rate of females aged 20 years old or less(43 .89% ) was the highest ,while have the infection rate of females aged 36-50 years old was the lowest(27 .26% ) .Conclusion The HPV infection rate of females in Chongqing is high ,the most of females infected by high‐risk subtype HPV .It is necessary to lay emphasis on preventing HPV 52 , 16 ,58 ,33 ,18 infection for females in Chongqing city .
5.The relationship among the sense of coherence, empowerment and self-efficacy in peritoneal dialysis patients
Chunyan SUN ; Jie HAO ; Peng ZHANG ; Haiyan XU ; Qing ZHANG
Chinese Journal of Practical Nursing 2016;32(9):664-668
Objective To explore the relationship among the sense of coherence,empowerment and self-efficacy in peritoneal dialysis patients.Methods General information,the Sense of Coherence Scale,the Peritoneal Dialysis Empowerent Scale-Short Form and the Self-Efficacy for Managing Chronic Disease Scale were used to investigate a total of 160 peritoneal dialysis patients in a third-class hospital in Tianjin from March to June,2015.Results The mean score of the sense of coherence,empowerment,self-efficacy were (62.01±11.94) points,(4.09±0.68) points and (6.08±2.19) points.Both the sense of coherence and empowerment could positively influence the self-efficacy of peritoneal dialysis patients directly (r=0.429-0.571,P < 0.01),and the sense of coherence could also indirectly influence the self-efficacy through the mediation of empowerment (β decreased from 0.429 to 0.172,P < 0.01),the mediation effect accounted for 60.1% of the total effect.Conclusions Medical staff should take different actions to improve the sense of coherence and empowerment to improve the self-efficacy of peritoneal dialysis patients.
6.Reliability of extravascular lung water index and pulmonary vascular permeability index in assessing severity of acute respiratory distress syndrome in critically ill patients
Xuezhen HU ; Yuqiang GONG ; Peng YANG ; Laifang SUN ; Feng XU
Chinese Journal of Anesthesiology 2016;36(1):88-91
Objective To investigate the reliability of extravascular lung water index (EVLWI) and pulmonary vascular permeability index (PVPI) in assessing the severity of acute respiratory distress syndrome (ARDS) in critically ill patients.Methods Forty-six patients with ARDS,who were admitted in our emergency intensive care unit,aged 18-72 yr,weighing 46-72 kg,of Acute Physiology and Chronic Health Evaluation Ⅱ score 11-25,were divided into 3 groups:PaO2/FiO2 ≤ 100 mmHg severe group (n =16);100 mmHg <PaO2/FiO2 ≤ 200 mmHg moderate group (n =14);200 mmHg <PaO2/FiO2 ≤ 300 mmHg mild group (n=16).Before treatment,and at 24 and 72 h after diagnosis of ARDS,PVPI,EVLWI,cardiac index (CI),and intrathoracic blood volume index (ITBVI) were measured,and blood gas analysis was performed.PaO2/FiO2 was calculated.The 28 day fatality after admission to hospital was recorded.Person correlation of PVPI and EVLWI with PaO2/FiO2,ITBVI and CI was analyzed.Results The PVPI,EVLWI and fatality rate were significantly higher at each time point in moderate group and severe group than in mild group,and in severe group than in moderate group (P<0.05).The correlation coefficient between PVPI and PaO2/FiO2 was 0.778,and between EVLWI and PaO2/FiO2 was-0.437 (P<0.05).There was no correlation between CI and ITBVI (P>0.05).The correlation coefficient between EVLWI and PaO2/FiO2 was-0.448,and between EVLWI and ITBVI was 0.347 (P<0.05).There was no significant difference between the correlation coefficient between PVPI and PaO2/FiO2 and the correlation coefficient between EVLWI and PaO2/FiO2 (P<0.05).Conclusion PVPI and EVLWI both can assess the severity of ARDS in critically ill patients,showing a consistent reliability.
7.Analysis of the changes of serum throid hormones in post thoracic surgery patients
Shuanglin WANG ; Xu LIANG ; Juan SUN ; Hui ZHOU ; Peng ZHANG
International Journal of Biomedical Engineering 2015;38(6):365-368
Objective To investigate the relationship between thyroid hormone levels and the attack of arrhythmia after thoracic surgery.Methods Information of 44 patients after thoracic surgery form September 2012 to February 2015 in General Hospital of Tianjin Medical University was collected, and divided in to the arrhythmia group and non-arrhythmia group.A retrospective analysis was carried on their ECG, thyroid hormone levels, and physical health, and the parameters were then compared between the two groups.The correlation of triiodothyronine (T3) level and Acute Physiology and Chronic Health Evaluation (APACHE Ⅱ) was analyzed.Results The arrhymia patients' serum T3 and free triiodothyronine (FT3) levels were below normal levels, while the serum T3 and FT3 levels of the non-arrhythmia patients were within normal range, and the differences between the two groups were significant (P<0.05).No notable change of other thyroid hormones levels and correlation of T3, FT3 and APACHE Ⅱ score were found.Conclusions There is a significant difference between the arrhythmia and non-arrhythmia groups in serum T3 and FT3 levels.Perioperative thyroid hormone replacement therapy is worthy of consideration and trial in the clinical prevention and treatment of arrhythmia and prognostic improvement of patients.
8.Analysis on A(TA)n TAA polymorphism of UGT1A1 gene promoter by fluorescence real-time quantitative PCR
Yuzhong XU ; Qunrong CHEN ; Shunchang SUN ; Yunsheng PENG
International Journal of Laboratory Medicine 2016;37(13):1806-1808
Objective To develop a new method to detect A (TA)n TAA polymorphism in the UGT1A1 gene promoter by fluo‐rescence real‐time quantitative PCR (RQ‐PCR) .Methods Genomic DNA was extracted from peripheral blood in 16 patients with Gilbert′s syndrome and 66 healthy individuals .The polymorphic A(TA)n TAA sequence in the UGT1A1 gene promoter was deter‐mined by DNA sequencing .A pair of primers and two TaqMan probes labeled with either 5′FAM or VIC reporter dye incorporated a 3′minor groove binder were designed .The A(TA)n TAA polymorphisms in the UGT1A1 gene promoter were identified by RQ‐PCR for all research subjects .The sensitivity and specificity of RQ‐PCR for detecting the A(TA)nTAA polymorphisms were veri‐fied by DNA sequencing method .Results The homozygous A(TA)7TAA polymorphism was found in the promoter region of the UGT1A1 gene in all 16 patients with Gilbert′s syndrome by using RQ‐PCR .The homozygous A(TA)6TAA polymorphism was foundin46healthysubjects,whiletheheterozygousA(TA)6TAA/A(TA)7TAApolymorphismwasfoundinother20healthysub‐jects .All A(TA)nTAA polymorphisms in the promoter region of the UGT1A1 gene identified by RQ‐PCR were consistent with that of DNA sequencing .Conclusion It is a sensitive ,specific and simple method to detect the A (TA)n TAA polymorphisms in the promoter region of the UGT1A1 gene by RQ‐PCR ,which can be promoted and applied in clinic .
9.Biomechanical study on restorative methods of unilateral maxilla based on finite element analysis.
Jiayi SUN ; Peng XU ; Lizhen WANG ; Xufeng NIU ; Yubo FAN
Journal of Biomedical Engineering 2014;31(3):590-605
This paper is to report our study in which the differences between prosthetic restoration and surgical reconstruction using traditional clasp retention technology were analyzed based on three-dimensional finite element methods in our laboratory. Firstly, the maxillary unilateral defect model was developed using medical image processing software MIMICS. Secondly, the prosthesis was generated by mirroring technology. The clasp was designed according to the methods raised by Aramany. Then, the stress distribution of maxilla was calculated by simulating occlusion. According to the results, after osseointegration of surgical reconstruction, stresses of unaffected abutments were reduced significantly, and less stress of junction occurred near zygoma of affected side, which were all less than stresses of prosthesis restoration. Thus, removing the clasp of surgical reconstruction increased the stresses of unaffected abutments. The stress trends of maxillary components were different between prosthetic restoration and surgical reconstruction. Surgical reconstruction is better than prosthesis restoration in protection of the abutments. Clasp can alleviate the occlusal burden of maxilla. Varieties of retentive technologies can be considered in prosthesis restoration. The surgical reconstruction is more conducive to rehabilitate unilateral maxilla biomechanically in clinic.
Biomechanical Phenomena
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Finite Element Analysis
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Humans
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Image Processing, Computer-Assisted
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Mandibular Reconstruction
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methods
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Maxilla
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surgery
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Maxillofacial Prosthesis
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Osseointegration
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Zygoma
10.Construction and application of clinical immunology and inspection of net information
Huiyu XU ; Peng LIU ; Fengyong SUN ; Yuan CAO
Chinese Journal of Medical Education Research 2006;0(08):-
Objective To connect the content of clinical immunology and inspection with network,so that it is more convenient for medical students to understand and study this course,and the learners’interest in learning is aroused.Methods FrontPage 2003 web page authoring software,as well as animation software(flash) and picture editing software(Photoshop) were used to make a vivid image of the teaching content be shown through the web page,and effectiveness evaluation was done through peer review and students survey about the software.Results Using FrontPage to create web pages and change knowledge into learning pattern.got good results in studetns’self-study,and the"online self-test"section was added,which would more effectively check study effect.There were good student feedbacks.Conclusion Applying this learning pattern to study will play a very good role in deepening students’understanding of curriculum,improving their study efficiency and stimulating their interest in learning.