1.Left ventricular regional systolic function in patient with hypertrophic cardiomyopathy by quantitative tissue velocity imaging.
Xiulan, LI ; Youbin, DENG ; Haoyi, YANG
Journal of Huazhong University of Science and Technology (Medical Sciences) 2006;26(1):153-6
The left ventricular regional systolic functions in patients with hypertrophic cardiomyopathy (HCM) were assessed by using quantitative tissue velocity imaging (QTVI). Left ventricular (LV) regional myocardial velocity along long- and short-axis in 31 HCM patients and 20 healthy subjects were analyzed by QTVI, and the regional myocardial systolic peak velocities (MVS) were measured. Mean MVS at each level including mitral annular, basal, middle and apical segments were calculated. The ratio of MVS along long-axis to that along short-axis (Ri) at basal and middle segments of the LV posterior wall and ventricular septum were calculated. The results showed that mean MVS was slower at each level including mitral annular, basal, middle and apical segments in the HCM patients than that in the healthy subjects (P < 0.01). There were no significant differences in mean MVS between obstructive and non-obstructive groups in HCM patients. MVS of all regional myocardial segments along long-axis in the HCM patients were significantly slower than that in the healthy subjects (P < 0.05), but there was no significant difference in MVS of all regional myocardial segments along long-axis between hypertrophied and non-hypertrophied group in the HCM patients. Ri was significantly lower in the HCM patients than that in the healthy subjects. The LV regional myocardial contractility along long-axis was impaired not only in the hypertrophied wall but also in the non-hypertrophied one in patients with HCM, suggesting that QTVI can assess accurately LV regional systolic function in patient with HCM and provides a novel means for an early diagnosis before and independent of hypertrophy.
Cardiomyopathy, Hypertrophic/*physiopathology
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Cardiomyopathy, Hypertrophic/ultrasonography
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*Echocardiography, Doppler/methods
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Ventricular Function, Left/*physiology
2.Evaluation of left ventricular rotation and twist in patients with constrictive pericarditis after pericardiectomy with speckle tracking echocardiography
Li LI ; Youbin DENG ; Kun LIU ; Hongyun LIU ; Xiaojun BI
Chinese Journal of Ultrasonography 2021;30(4):277-281
Objective:To evaluate the left ventricular rotation and twist in patients with constrictive pericarditis (CP) after pericardiectomy by using speckle tracking echocardiography (STE), and observe its trend over time.Methods:A total of 29 patients with CP from Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology from September 2014 to December 2017 underwent echocardiography 1 week before and 1 month, 6 months, 12 months after pericardiectomy. STE was performed to obtain peak values of basal and apical rotation and left ventricular twist. Twenty-nine healthy subjects were recruited as controls in the same period.Results:The left ventricu1ar apical rotation[before surgery(6.62±3.19)°, 1 month after surgery(7.07±4.02)°, 6 months after surgery(7.88±4.46)°, 12 months after surgery(7.85±4.51)°], the left ventricu1ar twist [before surgery(10.50±4.94)°, 1 month after surgery(9.42±5.40)°, 6 months after surgery(9.59±4.62)°, 12 months after surgery(9.70±4.45)°] were significantly lower in patients with CP than those in controls [(11.22±5.17)°, (16.35±5.21)°](all P<0.05); while basal rotation in patients with CP after surgery among different time points were all significantly lower than those in controls[1 month after surgery(-3.85±3.20)°, 6 months after surgery(-3.49±2.09)°, 12 months after surgery(-3.53±2.01)°; controls(-5.57±2.78)°] (all P<0.05), with no significant difference between patients with CP before surgery (-5.22±3.14)° and controls (-5.57±2.78)°( P>0.05). There were no significant differences in left ventricular twist, basal and apical rotation in CP groups before and after surgery among different time points (all P>0.05). Conclusions:Although the left ventricular global function of patients with CP in the long postoperative period seems "normal" , the left ventricular twist, basal and apical rotation are still significantly lower than those in controls. STE can be used to assess the changes of left ventricular twist and rotation in patients with CP long-term after pericardiectomy.
3.A new alkaloid from Salsola collina
Yu XIANG ; Youbin LI ; Jian ZHANG ; Ping LI ; Yuanzhang YAO
Acta Pharmaceutica Sinica 2007;42(6):618-620
Salsola collina is widely distributed in droughty and semi-droughty area, which is used as a kind of folk remedy in traditional Chinese medicine for treatment of hypertension. The study is on the chemical constituents of this herb from its aerial parts to obtain its active constituents. Dried and crushed aerial parts of this herb were extracted three times with 95% EtOH at reflux. The ethanol extracts were combined and concentrated under reduced pressure at 70 ℃ to yield residue, which was suspended in water and successively partitioned with light petroleum, chloroform and n-butanol. The chloroform and n-butanol fractions were treated by various chromatographic techniques, such as silica gel, C18 reversed-phase silica gel and macroporous resin column chromatography. Compounds were elucidated by their physicochemical properties and spectroscopic analysis. In the course of our study on searching biological active components from this herb, a new alkaloid together with three known alkaloids were isolated and identified as N-transferuloyl-3-methyldopamine (1), 3-[4-(β-D-glucopyranosyloxy)-3- methoxyphenyl]-N-[2-(4-hydroxyl-3-methoxyphenyl)ethyl]-2-propenamide (2), salsoline A (3), salsoline B (4). Compound 4 is a new compound and named as salsoline B, while compound 2 was obtained in Salsola collina for the first time.
4.Two-dimensional speckle tracking imaging evaluation of left ventricular longitudinal shrinkage function in patients with liver cirrhosis
Xin XU ; Chunlei LI ; Hongzhou LI ; Jie SUN ; Youbin DENG
Chinese Journal of Medical Imaging Technology 2010;26(2):288-290
Objective To assess the left ventricular longitudinal shrinkage function in liver cirrhosis patients with two-dimensional speckle tracking imaging (2D-STI). Methods Echocardiography and Doppler echocardiography were performed in 34 patients with liver cirrhosis and 35 healthy subjects of corresponding ages. High frame rate two-dimensional images were recorded from apical long-axis view, four-chamber view and two-chamber view of left ventricle; then the left ventricular diameter, left atrium diameter, the peak filling velocity of E wave and A wave, E/A ratio, EF and FS were measured. The peak systolic strain of left ventricular segment was measured with two-dimensional strain software. Results Compared with healthy subjects, left ventricular diameter, left atrium diameter, EF and FS of liver cirrhosis patients were not statistically different (P>0.05), but the E/A ratio was lower (P<0.05). The peak systolic strain of most left ventricular segment in liver cirrhosis reduced significantly (P<0.05), except that of base segment of posterior wall, anterior wall, inferior wall, anterior and posterior interventricular septum, as well as middle segment of posterior interventricular septum. Conclusion The heart shape, systolic and diastole function of liver cirrhosis are abnormal. 2D-STI can early and accurately evaluate the systolic function of liver cirrhosis.
5.Assessment of left ventricular twist in patients with chronic kidney disease by two-dimensional speckle tracking echocardiography
Qianqian, KE ; Chunlei, LI ; Chenyang, WANG ; Dan, JIN ; Youbin, DENG
Chinese Journal of Medical Ultrasound (Electronic Edition) 2015;(12):929-933
ObjectiveTo analyze the characteristics of left ventricular (LV) twist and discuss the relationship between LV ejection fraction (LVEF) and LV twist in patients with chronic kidney disease (CKD) by two-dimensional speckle tracking imaging (2D-STI).MethodsForty-six patients with CKD and 30 healthy controls were enrolled in this study. After conventional echocardiography, LV end-diastolic volume (LVEDV) and LV end-systolic volume (LVESV) were measured by Biplane Simpson method and the LVEF was calculated. And relevant parameters of LV rotation and twist were measured by speckle tracking imaging. Correlation analysis of LVEDV, LVESV and LV peak rotation and twist were analyzed respectively. ResultsCompared with the control group, LV peak twist and the apical rotation were decreased in CKD patients, which was statistically significant (t=0.002 and 0.020, bothP<0.05). The inferior wall and posterior intermediate septum of basal segment were significantly decreased (t=0.044 and 0.041, both P<0.05). Pearson correlation analysis revealed LV apical peak rotation had a relationship with LVEDV and LVESV (r= 0.355 and 0.409, bothP<0.01).Conclusion2D-STI is an practical noninvasive method which can analyze LV twist accurately and recognize LV systolic dysfunction of CKD patients sensitively.
6.Quantitative assessment of right ventricular systolic function by the analysis of right ventricular contrast time-intensity curve.
Lin, WANG ; Youbin, DENG ; Tianliang, LI ; Haoyi, YANG
Journal of Huazhong University of Science and Technology (Medical Sciences) 2004;24(6):607-9
To study reliability and reliable indices of quantitative assessment of right ventricular systolic function by time-intensity curve (TIC) with right ventricular contrast, 5% sonicated human albumin was injected intravenously at a does of 0.08 ml/kg into 10 dogs at baseline status and cardiac insufficiency. Apical four-chamber view was observed for washin and washout of contrast agent from right ventricle. The parameters of TIC were obtained by curve fitting. The differences of parameters were analyzed in different states of cardiac functions. Among the parameters derived from TIC, the time constant (k) was decreased significantly with decline of cardiac function (P<0.001). But half-time of decent of peak intensity (HT) and mean-transit-time (MTT) of washout were increased significantly (P<0.001). The k was strongly related to cardiac output of right ventricle (CO) and ejection fraction (EF) of left ventricle and fractional shortening (FS) of left ventricle. Right ventricular systolic function could be assessed reliably by the parameters derived from TIC with right ventricular contrast echocardiography. The k, HT and MTT are reliable indices for quantitative assessment of right ventricular systolic function.
Blood Flow Velocity/physiology
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Cardiac Output
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Contrast Media
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Echocardiography
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Image Processing, Computer-Assisted
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Indicator Dilution Techniques
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Reproducibility of Results
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Systole
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Ventricular Function, Right/*physiology
7.Assessment of right ventricular free wall longitudinal myocardial deformation using speckle tracking imaging in normal subjects.
Chun, TONG ; Chunlei, LI ; Jialin, SONG ; Hongyun, LIU ; Youbin, DENG
Journal of Huazhong University of Science and Technology (Medical Sciences) 2008;28(2):194-6
To assess right ventricular free wall longitudinal myocardium deformation and examine the changes with normal age by speckle tracking imaging (STI), myocardial systolic peak strain (epsilon), systolic peak strain rate (SRs), early diastolic peak strain rate (SRe), late diastolic peak strain rate (SRa), the ratio of SRe/SRa were measured in the basal, middle and apical segments of right ventricular free wall in 75 healthy volunteers (age range: 21-71 y) by STI from the apical 4-chamber view. RV longitudinal strain and strain rate were highest in the basal segment of the free wall. Older subjects had lower early diastolic strain rate (SRe) than younger subjects, but they had higher late diastolic strain rate (SRa). A negative correlation between age and the ratio of SRe/SRa was found in all RV free wall segments (r=-0.466 - -0.614, P<0.01). It is concluded that RV diastolic strain rate changes with age and STI can be used for the study of RV myocardial deformation.
Age Factors
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Diagnostic Imaging/*methods
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Echocardiography/methods
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Heart/physiology
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Models, Statistical
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Myocardial Contraction
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Myocardium/*pathology
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Reproducibility of Results
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Stress, Mechanical
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Ventricular Dysfunction, Right
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Ventricular Function, Right
8.Clinical Observation of Spraying Mannatide and 5-fluorouracil in Anocelia during Surgery of Lung Cancer
Zheng MA ; Jianjun LI ; Ping REN ; Fangchao GONG ; Youbin CUI
China Pharmacy 2015;(18):2473-2475
OBJECTIVE:To observe the efficacy and safety of spraying mannatide and 5-fluorouracil in anocelia during sur-gery of lung cancer based on the adjuvant chemotherapy. METHODS:Totally 114 patients with lung cancer radical surgery were randomly divided into observation group(59 cases)and control group(55 cases). There were spraying mannatide(40-80 mg)and 5-fluorouracil(500 mg)in the observation group;and nothing drugs were sprayed in control group. The patients higher than phaseⅡ were treated by adjuvant chemotherapy after surgery for continuous 2 cycles,21 d as a cycle. The clinical data was compared, including amount of bleeding and drainage,hospital stay,complications,toxicity,KPS score,body weight changes,immune func-tion,survival rate and recurrence rates between 2 groups. RESULTS:There were no significant differences among the amount of bleeding and drainage,hospital stay and complications in the 2 groups (P>0.05). The nausea,vomiting,leucopenia,the KPS score,improvement of total effective rate,and improvement rate of body mass,immune function,survival rate in 1 and 2 year (s),recurrence rate and time within 2 years in observation group were significantly better than control group,with significant dif-ferences(P<0.01 or P<0.05). CONCLUSIONS:Spraying mannatide and 5-fluorouracil can reduce the toxicity in anocelia during surgery of lung cancer based on the adjuvant chemotherapy,improve the immune function and survival rate,reduce recurrence rate and prolong the recurrence time.
9.Expression of tumor-associated carbohydrate antigen sTn in breast neoplasm
Yang LI ; Bin ZHANG ; Xinghua WANG ; Youbin CUI ; Tong FU
Journal of Jilin University(Medicine Edition) 2006;0(01):-
Objective To investigate the expression of tumor-associated carbohydrate antigen sTn in breast neoplasm,and analyzed the association between the expression of sTn and size of tumor,age,menopause,axillary lymph node metastasis,clinical stage,pathologic grade and the level of estrogen receptor in breast carcinoma.Methods The monoclonal antibody TKH-2 was used to detect the immunohistochemical expression of sTn in 46 cases of breast carcinoma,4 breast adenoma and 2 gynecomastia.The level of estrogen receptor was detected by S-P method in 46 breast carcinoma.Results Immunohistochemical expression of sTn was not detected in breast adenoma and gynecomastia.The expression of sTn was found in 28 of 46 breast carcinoma(60.9%).The expression of sTn was significantly associated with axillary lymph node metastasis(P0.05).In 46 breast carcinoma,the positive quantity of estrogen receptor was 25(54.3%).Conclusion STn immunostaining appears to be a poor prognostic factor in patients with breast carcinoma.It is more useful in detecting the expression of sTn together with the level of estrogen receptor in breast carcinoma to investigate the prognosis of the patients.
10.A new phenolic glycoside from prunella vulgaris.
Xiaojie GU ; Youbin LI ; Jun MU ; Yi ZHANG
Acta Pharmaceutica Sinica 2011;46(5):561-3
A new phenolic glycoside was isolated from the spikes of Prunella vulgaris. Its structure was elucidated as gentisic acid 5-O-beta-D-(6'-salicylyl)-glucopyranoside by spectroscopic evidence and chemical analysis.