1.Early results and mid-term patency of minimally invasive direct coronary bypass grafting surgery
Min TANG ; Ju MEI ; Hao LIU ; Naishi ZHAO ; Hang YI
Chinese Journal of Thoracic and Cardiovascular Surgery 2016;32(4):205-207
Objective To study the early clinical outcome of patients undergone minimally invasive direct coronary bypass(MIDCAB) surgery,and the mid-term patency of left internal mammary artery(LIMA)-left anterior descending(LAD) anastomosis.Methods From Jannuary 2007 to May 2014,47 cases underwent MIDCAB surgery in our department,with 35 males and 12 females,aged 48-76 years,with the average of (62.9 ± 8.1) years old.Types of LAD lesions were as followed:1 case was ostial total obstruction,28 severe stenosis at proximal segment,10 long and severe stenosis,3 calcified lesion with severe stenosis,5 myocardial bridge.All patients had symptomatic angina,typical myocardial ischemia could be detected by electrocardiogram for all patients with myocardial bridge.Comorbidities included:hypertension 38 cases,27 diabetes mellitus,3 COPD and 3 chronic kidney disease.Results All surgery went well without transfer to mid-sternotomy.LIMA harvest time was 38-53 minutes,mean LIMA flow rate was(22 ± 6) ml/min after anastomosis.Surgery duration was 117-143 minutes,blood loss was less than 100 ml for each operation.No blood transfusion was required.Tracheal intubation time was 4-16 hours,ICU stay time was 22-45 hours,hospital stay time was 6-10 days.There was no peri-operative death,either no myocardial infarction or cerebral vessel accident.During follow-up,all LIMA-LAD appeared to be patent by coronary CT angiography.Conclusion High patency rate of LIMA-LAD anastomosis could also be obtained during MIDCAB surgery.It was reserved as a safe and effective surgery for well-selected patients.
2.Hybrid repair for dissection involving the aortic arch
Yi SI ; Yi HE ; Min TANG ; Hao LIU ; Fangbao DING ; Chunrong BAO ; Ju MEI
Chinese Journal of General Surgery 2016;31(8):624-627
Objective To summarize the experience of hybrid repair performed in high risk patients with dissection involving the aortic arch.Methods From Sep.2007 to Mar.2015,hybrid repair was performed in 33 high risk patients with dissection involving the aortic arch including acute (n =8),subacute (n =15),or chronic (n =10) cases.Descripitive statistics were computed for continuous and categorical variables.Results There were 22 male and 11 female patients with a mean age of(69 ± 10) years,and ASA Physical Status Ⅲ-Ⅳ.Simultaneous (n =27) and staged (n =5,mean interval 5.0 ± 1.3 days)endovascular repair were performed via femoral artery.The technical success rate was 100%.The average hospital stay was (16 ±6) days.One case died of cerebral infraction.There were two with strokes,one with pneumonia and two with renal failure as complications.Median follow-up was 47 months (3-66 months).There were four deaths with two were related to aortic artery.Endoleak was found in 3 during follow-up.One type Ⅰ endoleak was cured after remedy hybrid repair.Conclusions Hybrid repair performed in patients at high risk with dissection involving the aortic arch is less invasive with favorable medium and long-term outcomes.
3.Inhibitory effect of JIP on AP-1 activity induced by LMP1 in nasopharyngeal carcinoma cells and its mechanism
Zhi HU ; Feijun LUO ; Xiyun DENG ; Liqun YIN ; Yan ZHAO ; Faqing TANG ; Min TANG ; Huanhua GU ; Wei YI ; Ya CAO
Chinese Journal of Pathophysiology 2000;0(10):-
AIM: To investigate the mechanism of the AP-1 signal transduction pathway inhibited by JIP in nasopharyngeal carcinoma cells. METHODS: AP-1 activity was triggered by Dox-induced LMP1 expression in Tet-on-LMP1-HNE 2 cells (L7). The retention of phospho-JNK in the cytoplasm caused by JIP was examined with immunofluroscence assay. RESULTS: 24 h after transfection of L7 cells with the JIP expression plasmid, the translocation of activated JNK was inhibited, which resulted in the retention of phospho-JNK in the cytoplasm and down-regulation of the AP-1 activity. CONCLUSION: JIP down-regulates the activity of AP-1 through the inhibition of the translocation of JNK.
5.Study on correlation between plasma Klotho,FGF23 protein level and senile hypertension
Wennan PEI ; Baoshan LI ; Yi JIANG ; Yuping TANG ; Ting LI ; Min ZHOU ; Liyin CHAI
Chongqing Medicine 2016;45(12):1647-1649
Objective To explore the correlation between plasma Klotho and FGF23 levels with senile hypertension .Methods Totally 180 cases of hypertension aged more than 60 years old were selected as the research group and divided into the grade 1 hypertension group(60 cases) ,grade 2 hypertension group(60 cases) and grade 3 hypertension group(60 cases) .The age and pro‐portion of male to female were basically consistent .60 elderly people without hypertension were selected as the control group .The level of plasma Klotho and FGF23 protein were tested by ELISA .The lipid level was detected by the automatic biochemical analy‐zer .The detection results were compared with those in the control group for analyzing their correlation .Results Plasma Klotho protein level in each hypertension group was lower than that in the control group ,while plasma FGF23 protein level and BMI were significantly higher than those in the control group(P<0 .05) .With the blood pressure level increase ,plasma Klotho protein level was gradually decreased ,while FGF23 protein level was gradually increased .The negative correlation was found between plasma Klotho protein and FGF23 protein (r= -0 .282 ,P=0 .001) .Plasma Klotho protein and FGF23 protein had no obvious correlation with BMI (r= -0 .063 ,-0 .098 ,P>0 .05) .Conclusion Plasma Klotho protein and FGF23 protein levels have obvious correlation with the blood pressure level ,which may jointly participate in the occurrence and development of hypertension .
6.Three-dimensional finite element analysis of stress distribution about abutments periodontal membranes of separated removable partial denture and conical telescope.
Ying TANG ; Min WANG ; Yun LUO ; Yi MAN
West China Journal of Stomatology 2009;27(5):545-552
OBJECTIVETo investigate and compare the stress of edentulous mucosa and periodontal membranes of the abutments under vertical loads for separated removable partial denture or conical telescope denture.
METHODSOne patient who had lost the second premolar and the first molar on the upper jaw and had I mobile abutments was chosen in the study. Two precise three dimensional finite element models were constructed by using screw CT image reconstruction technique and Materialise Mimics, Pro/Engineer WF 2.0, ANSYS Workbench software. Vertical forces were loaded on the two models. Then comparing and analyzing the von Mises stress distribution of the edentulous mucosa and the periodontal membranes of abutments between the separate removable partial denture and conical telescope denture in the software of ANSYS Workbench.
RESULTSThe von Mises stress values of the edentulous mucosa of separate removable partial denture were larger than that of the conical telescope denture. The von Mises stress values of abutments periodontal membranes of separate removable partial denture were lower than that of conical telescope denture.
CONCLUSIONUnder vertical loads, compare with conical telescope denture, the separate removable partial denture can protect the abutments.
Bicuspid ; Dental Abutments ; Dental Stress Analysis ; Denture Design ; Denture, Partial, Removable ; Finite Element Analysis ; Humans ; Maxilla ; Periodontal Ligament ; Telescopes ; Tooth
7.Protective effect of total flavonoids of epimedium on the kidney in experimental diabetic rats.
Hong QIAN ; Jun-Jie YANG ; Ding-Yi PAN ; Wen-Tao TANG ; Ke-Jia XU ; Min-You QI
Chinese Journal of Applied Physiology 2014;30(4):314-317
OBJECTIVETo investigate the influence of total flavonoids of epimedium (TFE) on the streptozocin (STZ)-induced kidney injury in diabetic rats and discuss the possible mechanism.
METHODSDiabetes was produced by a single injection of streptozocin (40 mg/kg, iv) in male SD rats. The rats were randomly divided into three groups (n = 10): control group, model group and TFE group (100 mg/kg, ig). Animals were sacrificed 12 weeks later. The level of blood glucose, blood urea nitrogen (BUN) and creatinine (Cr) as well as the renal index were determined. Detect the specific biochemical of renal tissue: superoxide dismutase (SOD), malondialdehyde (MDA). Use masson staining to observe the morphology of the renal tissue. Immunohistochemistry was employed to determine the protein levels of transforming growth factor-beta1 (TGF-beta1).
RESULTSCompared to control group, the enhancement of blood glucose, renal index, BUN and Cr was found in model group, which was significantly attenuated by treatment with TFE. Meanwhile, elevated MDA level in renal tissue as well as decreased SOD activities in renal tissue were significantly remitted by TFE. Furthermore, TFE decreased the expression of TGF-beta1.
CONCLUSIONTFE can evidently relieve renal damage in rats with diabetic nephropathy induced by STZ, which might be related to antioxidation and modulating the expression of TGF-beta1 protein.
Animals ; Diabetes Mellitus, Experimental ; metabolism ; Diabetic Nephropathies ; metabolism ; prevention & control ; Epimedium ; chemistry ; Flavonoids ; pharmacology ; Kidney ; drug effects ; metabolism ; Male ; Rats ; Rats, Sprague-Dawley
8.Prognostic value of Charlson Comorbidity Index for acute coronary syndrome
Min XU ; Baodi SUN ; Zhaorui SUN ; Hongmei LIU ; Danbing SHAO ; Wei ZHANG ; Jinfeng LIN ; Yi REN ; Wenjie TANG ; Shinan NIE
Journal of Medical Postgraduates 2015;(2):161-165
Objective Acute coronary syndrome ( ACS) is frequently accompanied by chronic comorbidities , which may se-riously affect its prognosis .This study aims to investigate the value of the Charlson Comorbidity Index ( CCI) in predicting the outcome of ACS by assessing the impact of individual and post-weighted-assignment comorbid conditions of the disease . Methods We retro-spectively analyzed the clinical data on 1 096 cases of ACS treated in Jinling Hospital from January 2010 to March 2014 .We reviewed their general information , clinical presentations , complications , and previous treatments , calculated CCI , and used in-hospital mortali-ty as the index for judging the prognosis . Results Of the 1 096 patients, 73%were males (aged 64.2 ±12.9 years), 27% were females (aged 72.1 ±12.6 years), and 46.8% had comorbidities. Of the diseases included in the CCI system , previous myocardial infarction was the most frequent comorbidity (18.0%), followed by diabetes mellitus ( 14.7%), moderately to severe renal disease (7.1%), cerebrovascular disease (6.0%), and chronic lung dis-ease (6.0%).Single factor analysis revealed statistically significant differences between different CCI groups in such clinical indicators as history of coronary artery disease , history of hypertension , time between symptom onset and admission , hemodynamics , drugs adminis-tered (aspirin, P2Y12 blockers, ACEI/ARB or statins), and reperfusion therapy (P<0.05).Logistic regression analysis showed the strongest predictors of in-hospital mortality were heart failure (OR 1.88, 95%CI:1.57-2.25), metastatic tumor (OR 2.25, 95%CI:1.60-3.19), renal disease (OR 1.84, 95% CI:1.60-2.11), and diabetes mellitus (OR 1.35, 95% CI:1.19-1.19). Receiver operating characteristic curve analysis manifested that either CCI with age or CCI with age and gender was superior to CCI a -lone in predicting in-hospital mortality of ACS patients (AUC 0.761 [95%CI 0.748-0.773] and 0.756 [95%CI:0.743-0.768] vs 0.670 [95%CI:0.656-0.685]). Conclusion Heart failure, diabetes mellitus, renal disease, and metastatic tumors contrib-ute to the in-hospital mortality of ACS patients .CCI together with age and gender may help to assess the prognosis of the disease .
9.Preliminary evaluation of data mining on non-masslike enhancement of breast lesions on MRI
Hongna TAN ; Yi SU ; Ruimin LI ; Ying CHEN ; Peihua WANG ; Feng TANG ; Jian MAO ; Xigang SHEN ; Min QIAN ; Yajia GU
Chinese Journal of Radiology 2009;43(5):455-459
Objective To evaluate the diagnostic values of the breast imaging reporting and data system-MRI (BI-RADS-MRI)description about non-masslike enhancement by data mining. Methods Fifty-five patients with non-masslike enhancement lesions showed on breast contrast-enhanced MRI were evaluated using two data mining algorithms (Logistic regression and decision tree) and 10-fold cross-validation methods. Results There were 28 malignant and 27 benign lesions. The most frequent findings of the malignant lesions were clustered ring enhancement and clumped enhancement [ 12 and 4 lesions, respectively; 84. 2% (16/19) in decision trees, partial regression coefficients in Logistic model were 2. 128 and 1.723, respectively], whereas homogenous, stippled, reticular internal and linear ductal enhancement were the most frequent findings in benign lesions [ 4、9、1 and 7 lesions, respectively; 72. 4% (21/29) in decision tree, partial regression coefficients in Logistic model were 0.357 (homogenous), 1. 861 (stippled) and 18. 870( reticular), respectively]. 10-fold cross-validation indicated that decision tree (C5.0) achieved an accuracy of 69.3% with a sensitivity of 66.7% and a specificity of 71.7% in comparison to the Logistic regression model with an accuracy of 57. 0%, a sensitivity of 43.3% and a specificity of 71.7%. Conclusions The diagnosis efficacy of non-masslike enhancement interpretation according to BI-RADS-MRI is not high. It is very important to find more potential features of non-masslike enhancement to improve the diagnosis accuracy.
10.Clinical, neuroimage, and neuropsychological profiles of semantic dementia
Aihong ZHOU ; Cuibai WEI ; Yaxu ZHANG ; Yi TANG ; Haiqing SONG ; Baoquan MIN ; Li HUANG ; Yanhui YANG ; Jianping JIA
Chinese Journal of Neurology 2012;45(2):84-89
Objective To explore the clinical,neuroimage,and neuropsychological profiles of semantic dementia (SD).Methods Detailed medical history were collected on 18 SD patients.Brain MRI scans were administered.Neuropsychological evaluation taping semantic memory (things naming),overall cognitive function ( Mini-mental State Examination,MMSE),visuoconstructive skill ( Clock Drawing Test,CDT), daily functional ability (Activities of Daily Living, ADL), neuropsychiatric symptoms (Neuropsychiatric Inventory,NPI),and disease severity (Frontotemporal Lobar Degeneration Modified Clinical Dementia Rating Scale,FTLD-CDR) were performed on all patients.Results The mean age at onset was (60.6 ± 8.5 ) years,with 5 cases over 65. All patients developed progressive word-finding difficulty and anomic speech.Ten patients complained significant memory impairment and 14 experienced behavioral disturbance.Five patients were previously diagnosed as Alzheimer' s disease (AD) and 1 as schizophrenia.All patients developed marked semantic memory impairment both for living things and nonliving things.The mean score on MMSE was 10.94 ± 8.86,with 16 cases performed incorrectly on naming.Mean score on CDT copy was 4.61 ±0.85,with 14 cases scored normally.Mean score on ADL was 29.72 ± 8.75.Cases with a 5-year course showed a significant overall decline.Fourteen cases presented behavior symptoms and scored 8.00 ± 7.22 on NPI.All patients scored worst on language domain among all the domains evaluated in FTLD-CDR.Atrophy,typically involving the left anterior temporal was shown on MRI scans.However,predominantly right temporal atrophy was observed in one patient.Atrophy confined to the temporal lobe in patients with early stage and extended to the contralateral temporal,frontal lobe,and parietal lobe as disease progression. Conclusions Current study suggested that SD tend to develop in presenile age.However,about 1/3 cases develop the disease after 65 years. Deficit in language is the earliest and most prominent symptom. Behavior change is prevalent as well. Patients are commonly misdiagnosed as AD or lack a definite diagnosis.Visuoconstructive skill and other abilities are relatively preserved in the early stage.With progression into the 5th years,overall decline comes inevitably.Brain scans can reflect the disease characteristics and progression. Of note,there exists individual with right dominant atrophy.