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Objective:To explore the assessment value of echocardiogram combined with serum high-sensitivity C-reactive protein(hs CRP)and N-terminal pro brain natriuretic peptide(NT proBNP)levels on cardiac function of patients with coronary heart failure.Methods:A total of 306 patients with coronary heart failure admitted to Beijing Daxing District People's Hospital from November 2021 to November 2022 were selected as the study group.Among of them,144 cases were grade Ⅱ,103 cases were grade Ⅲ and 59 cases were grade Ⅳ as the classification of New York Heart Association(NYHA)for cardiac function.A total of 108 healthy examinees who underwent physical examinations in our hospital during the same period were selected as the healthy control group.All examinees were classified as the NYHA for cardiac function,and left ventricular end diastolic volume(LVEDV),left ventricular end systolic volume(LVESV),left ventricular ejection fraction(LVEF),peak ejection rate(PER)and peak filling rate(PFR)of them were measured by echocardiogram.The NT proBNP and hs CRP levels of all examinees were measured.Receiver operating characteristic(ROC)curve was used to analyze the values of single LVEDV,LVESV,LVEF,PER,PFR,hs CRP and NT-proBNP,and the combination of them.Results:LVEDV(122.69±18.24)ml and LVESV(70.79±10.03)ml of the study group were significantly higher than(92.27±15.22)ml and(33.16±7.22)ml of the healthy control group,and the LVEF(42.26±5.13)％,PER(2.49±0.22)EDV/s and PFR(1.79±0.26)EDV/s of the study group were significantly lower than(69.34±5.27)％,(3.56±0.27)EDV/s,and(2.59±0.23)EDV/s of the healthy control group,with statistical significances(t=15.526,35.837,46.828,40.825,28.302,P<0.05),respectively.The levels of hs CRP and NT proBNP of the study group were significantly higher than those of the healthy control group,with statistical significance(t=88.000,29.099,P<0.05),respectively.The LVEDV and LVESV of grade Ⅱ/Ⅲ patients were significantly lower than those of grade Ⅳ patients,while LVEF,PER and PFR of grade Ⅱ/Ⅲ patients were significantly higher than those of grade Ⅳ patients,with statistically significant differences(t=53.391,92.658,32.140,240.474,116.921,P<0.05),respectively.The levels of hs CRP and NT proBNP of grade Ⅱ/Ⅲ patients were significantly lower than those in grade Ⅳ patients,with statistical significance(t=41.037,5.955,P<0.05),respectively.The results of ROC curve analysis showed that the sensitivities of single LVEDV,LVESV,LVEF,PER,PFR,hs CRP,NT proBNP and the combined examination of them were respectively 45.00％,50.00％,70.00％,70.00％,75.00％,70.00％and 90.00％,and the specificities of them were respectively 76.70％,57.00％,82.60％,44.20％,58.10％,52.30％and 96.50％.The area under curve(AUC)values of LVEDV,LVESV,LVEF,PER,PFR,hs CRP,NT proBNP and the combined examination of them were 0.592(95％CI:0.441-0.743),0.615(95％CI:0.468-0.761),0.766(95％CI:0.634-0.899),0.717(95％CI:0.575-0.860),0.674(95％CI:0.536-0.812),0.734(95％CI:0.592-0.876),0.581(95％CI:0.469-0.694)and 0.978(95％CI:0.947-1.000),respectively.Conclusion:The serum hs CRP,NT proBNP levels and function parameters of left heart in patients with coronary heart failure have occurred corresponding changes,and the above indicators have higher assessment value for the heart function of coronary heart failure,and the value of combined assessment is higher.
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Objective To explore the application effect of sacubitril valsartan in patients with chronic heart failure(CHF).Methods A total of 66 CHF patients admitted to Xinyu Yuanhe Hospital from September 2021 to September 2022 were selected and divided into control group and study group according to random number table method,with 33 cases in each group.The control group was treated with benazepril + spironolactone + metoprolol,and the study group was treated with sacubitril valsartan + spironolactone + metoprolol.The clinical efficacy,ventricular remodeling,cardiac function,serum factor levels and adverse reactions were compared between two groups.Results The total effective rate in study group was significantly higher than that in control group(χ2=5.974,P=0.015).After treatment,left ventricular mass index,myocardial wall stress,left ventricular posterior wall thickness,left ventricular ejection fraction,N-terminal pro-brain natriuretic peptide(NT-proBNP),angiotensin Ⅱ and aldosterone in study group were significantly lower than those in control group,and left ventricular remodelling index,stroke volume and left ventricular end-diastolic volume were significantly higher than those in control group(P<0.05).There was no significant difference in adverse reactions between two groups(P>0.05).Conclusion The treatment effect of sacubitril valsartan in CHF patients is significant,which can effectively improve cardiac function indicators,reverse ventricular remodeling,reduce serum NT-proBNP level,and have fewer adverse reactions.
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[Objective]To explore the mechanism of Qifu Qiangxin Decoction mitigating myocardial damage in heart failure(HF)mice with heart-kidney Yang deficiency syndrome.[Methods]Thirty C57BL/6 mice were randomly divided into Sham surgery group(Sham group),HF model(HF)group,low-dose Qifu Qiangxin Decoction(HF+QL)group,high-dose Qifu Qiangxin Decoction(HF+QH)group and western medicine[HF+angiotensin converting enzyme inhibitors(ACEI)]group,six in each group.In Sham group,the skin was cut open after anesthesia,the heart was exposed,the left anterior descending coronary artery was not in ligation,and then sutured.The rest were used to establish a mouse model of HF with heart-kidney Yang deficiency syndrome after myocardial infarction(MI)by ligating the left anterior descending coronary artery and swimming in cold water,then treated for 15 days.After treatment,the state of the mice was recorded,left ventricular end-diastolic volume(LVEDV),left ventricular end-systolic volume(LVESV),ejection fraction(EF)and left ventricular fractional shortening(LVFS)were measured by echocardiography to evaluate cardiac function;hematoxylin-eosin(HE)staining was used to evaluate the morphological of myocardial tissue;the serum levels of B-syndrome natriuretic peptide(BNP)were measured by enzyme linked immunosorbent assay(ELISA);terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling(TUNEL)was used to detect cardiomyocyte apoptosis;Western blot was used to determine the expression levels of apoptosis related proteins,autophagy related proteins and adenosine monophosphate-activated protein kinase/mammalian target of rapamycin(AMPK/mTOR)signaling pathway related proteins in mice myocardial tissue.[Results]Qifu Qiangxin Decoction can relieve the symptoms of HF in mice.Compared with Sham group,EF and LVFS values of mice in HF group were significantly decreased,while LVEDV and LVESV were significantly increased(P＜0.01).Compared with HF group,EF and LVFS values in each group were significantly increased,while LVEDV and LVESV were significantly decreased(P＜0.01),moreover,HF+QH group had a better effect than that of HF+QL group.According to HE staining,extensive necrotic myocardial tissue was observed in HF group compared with Sham group,and ELISA showed a significant increase in BNP levels(P＜0.01).Compared with HF group,the pathological conditions of myocardial tissue were relieve in each group,and the level of BNP was also significantly reduced(P＜0.01).TUNEL staining and Western blot results showed that the level of apoptosis in HF group was significantly increased compared with Sham group(P＜0.05).Compared with HF group,the apoptosis level of the each group was significantly reduced(P＜0.05).Therefore,Qifu Qiangxin Decoction could significantly reduce the level of cardiomyocyte apoptosis.Western blot detection of autophagy-related proteins and AMPK/mTOR signaling pathway related proteins showed that Qifu Qiangxin Decoction could significantly enhance autophagy level and regulate AMPK/mTOR signaling pathway in a concentration-dependent manner.[Conclusion]Qifu Qiangxin Decoction can regulate AMPK/mTOR signaling pathway,inhibit cell apoptosis and induce autophagy,thus protecting cardiomyocytes and mitigating myocardial injury.
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Objective To evaluate the pharmacodynamics of astragaloside Ⅳ derivatives for chronic heart failure, screen the candidate compounds and preliminarily explore the mechanism of the candidate compound HHQ16 against heart failure. Methods Chronic heart failure was induced by left anterior descending artery ligation in C57BL/6 mice for 4 weeks, and the mice were divided into 4 groups, including sham group, model group, positive control captopril group, and astragaloside Ⅳ derivatives group. After continuous intragastric administration for four weeks, the cardiac function was detected by echocardiography, and the optimal astragaloside Ⅳ derivative HHQ16 was selected for the treatment of heart failure. The preliminary mechanism for HHQ16 was further explored. The size of heart was observed by gross morphology; pathological changes were observed by HE staining; collagen deposition in the myocardium was observed by Masson staining; protein levels of myocardial fibrosis indexes COL1, COL3, and αSMA were detected by immunohistochemical staining, and mRNA levels of myocardial fibrosis indexes COL1, COL3, αSMA, and TGF-β1 were determined by qPCR technique. Results All astragaloside Ⅳ derivatives significantly improved cardiac function with increasing LVEF and LVFS, of which HHQ16 was the optimal compound. Compared with the model group, the heart volume of HHQ16 group was significantly reduced; myocardial hypertrophy was reduced; collagen deposition in myocardial tissues was reduced; and myocardial fibrosis indexes, COL1, COL3, αSMA and TGF-β1 mRNA levels, as well as the protein levels of COL1, COL3 and αSMA were significantly reduced. Conclusion HHQ16 is an optimal astragaloside Ⅳ derivatives for the treatment of chronic heart failure in mice, which could improve cardiac function by improving myocardial remodeling, and inhibit myocardial hypertrophy and myocardial fibrosis.
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ObjectiveTo explore the effectiveness and safety of Yiqi Huoxue Formula （益气活血方， YHF） in the adjuvant treatment of chronic pulmonary heart disease （CPHD） and heart failure （HF）with qi deficiency and blood stasis pattern. MethodsOne hundred and twenty patients with CPHD and HF with qi deficiency and blood stasis pattern were allocated randomly into treatment group and control group， with 60 case in each group. The control group was given conventional basic western medicine， while the treatment group was given oral administration of YHF granules in addition， one dose per day. The treatment course for both groups was 8 weeks. The TCM symptom scores， Minnesota Life Quality Scale （MLHF-Q） scores， echocardiographic indicators including right ventricular end-diastolic diameter （RVEDD）， left ventricular end-diastolic diameter （LVEDD）， left atrial end-diastolic diameter （LAEDD） and pulmonary artery mean pressure （PAMP）， six-minute walking distance （6MWD）， and plasma N-terminal pro-B-type natriuretic peptide （NT-ProBNP） level were compared between the groups. The effectiveness regarding cardiac function and TCM syndromes were compared between the two groups after treatment， and the occurrence of adverse events was observed. ResultsWith two drop-outs both in the treatment group and control group， and 58 cases in each group were included in the outcome analysis. The total effective rate regarding cardiac function and TCM syndromes in the treatment group were 91.38% （53/58） and 96.55% （56/58）， respectively， significantly higher than the corresponding 70.69% （41/58） and 48.27% （28/58） in the control group （P＜0.05）. After treatment， the TCM symptom scores and RVEDD level were significantly reduced in the treatment group， and MLHF-Q score， plasma NT-ProBNP level and PAMP level decreased significantly， while 6MWD increased in both groups （P＜0.01）. Compared to those in the control group， the TCM symptom scores， MLHF-Q score， plasma NT-ProBNP level and PAMP level significantly decreased， while 6MWD increased in the treatment group （P＜0.01）. There were no obvious abnormalities in the blood， urine， stool routine and liver and kidney function indicators in both groups. One adverse reaction each occurred in both groups， and there was no statistically significant difference in the incidence rates（P＞0.05）. ConclusionYHF combined with conventional western medicine can significantly improve the clinical efficacy， improve the clinical symptoms and cardiac function， increase the quality of life and exercise tolerance， and is relatively safe.
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@#Objective To investigate the effect of microparticles(MPs)derived from bone marrow mesenchymal stem cells(BMSCs) on myocardial hypertrophy and its mechanism.Methods The osteogenic differentiation and adipogenic differentiation of mesenchymal stem cells(MSCs) were induced. After isolation and purification,the morphological characteristics were observed by transmission electron microscope,and the MPs surface antigen was identified by flow cytometry. Myocardial hypertrophy model was induced by using isoprenaline(ISO)in rats,which were measured for the cardiac structure and function by echocardiography,and then detected for various indexes of the heart and isolated left ventricle. Single ventricular myocytes of rats were acutely isolated and divided into control group(Control group),cardiomyocyte hypertrophy group(ISO group),MPs group(MPs group),and MPs supernatant group(Supernatant group). The mRNA expressions of atrial natriuretic peptide(ANP)and B-type natriuretic peptide(BNP)were detected by qRTPCR. The expression levels of calmodulin-dependent protein kinaseⅡ（CaMKⅡ）and phosphorylated calmodulin-dependent protein kinaseⅡ（p-CaMKⅡ）were detected by ELISA. The L-type calcium current(LCa-L)in single ventricular myocyte of various groups was recorded by whole-cell patch clamp.Results The bone nodules of MSCs osteogenic differentiation turned red after alizarin red staining,and lipid droplets of adipogenic differentiation turned red after oil red O staining;Under transmission electron microscope,MPs membrane had a complete structure,a clear outline and a diameter of about200 nm;The positive rates of CD29 and CD90 on the surface of MPs were(98. 24 ± 0. 82)% and(97. 69 ± 1. 83)%,respectively. Compared with Control group,the left ventricular end diastolic dimension(LVEDD)reduced signifi-cantly(t =5. 065,P < 0. 05),while the interventricular septum end-diastolic dimension(IVSd),left ventricular posterior wall dimension(LVPWd),heart weight to body weight ratio(HW/BW),and heart weight to tibial length ratio(HW/Tibia)significantly increased in ISO group(t = 4. 013,2. 368,4. 392,5. 043 and 6. 120,respectively,each P < 0. 05),indicating that the hypertrophic model was successfully established. The expression levels of ANP and BNP mRNA in hypertrophic cardiomyocytes of rats in ISO group were significantly higher than those in Control group(t = 25. 120 and18. 261,respectively,each P < 0. 01);While the expression levels of ANP and BNP mRNA in MPs group significantly reduced after incubation with 48 μg/mL MPs for 48 h compared with ISO group(t = 12. 110 and 3. 526,respectively,each P < 0. 05);The expression levels of CaMK Ⅱand p-CaMKⅡ in ISO group were significantly higher than those in Control group(t = 3. 278 and 4. 181,respectively,each P < 0. 05),while the expression of p-CaMK Ⅱ in MPs group decreased significantly(t = 5. 420,P < 0. 05);The calcium current density in ISO group was significantly higher than that in Control group(t = 15. 261,P < 0. 01),while that in MPs group was significantly lower than that in ISO group(t =6. 216,P < 0. 05).Conclusion MSC-MPs can significantly inhibit ISO-induced cardiomyocyte hypertrophy in rats,which is related to its down-regulation of cardiomyocyte CaMKⅡ and inhibition of L-type calcium channel.
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ObjectiveTo prepare a rat model of heart failure after myocardial infarction by ligation of the anterior descending branch of the left coronary artery， and to observe the effect of Shenfu Yixin granules on the mitochondrial dynamics of rats with heart failure. MethodFifty SD male rats were randomly taken ten as the sham operation group and the rest as modeling group. The rat model of heart failure after myocardial infarction was prepared by ligation of anterior descending branch of left coronary artery. According to the left ventricular ejection fraction（LVEF） on the 28th day after operation， the model rats were randomly divided into the model group， Shenfu Yixin granule low-dose and high-dose groups（3.011， 15.055 g·kg-1） and sacubitril valsartan sodium group（20.83 mg·kg-1）. Each administration group was gavaged daily with the corresponding dose of drug solution， while the sham operation group and model group were given the same amount of normal saline once a day for 28 days， with 6 rats in each group. Ultrasound was used to detect the cardiac function parameters， rat heart mass and body mass were weighed to calculate the cardiac mass index， enzyme linked immunosorbent assay（ELISA） was used to detect serum brain natriuretic peptide（BNP） and soluble growth stimulation expressed gene 2 protein（sST2） levels. Hematoxylin-eosin（HE） staining was used to observe the pathological morphology of the myocardium. Real-time fluorescence quantitative polymerase chain reaction（Real-time PCR） and Western blot were used to detect the mRNA and protein expression of mitochondrial fusion protein 1/2（Mfn1/2）， optic atrophy protein 1（Opa1）， dynamin-related protein 1（Drp1） and fission protein 1（Fis1）. ResultCompared with the sham operation group， the mRNA and protein expression of LVEF， Mfn1， Mfn2， Opal in the model group decreased（P<0.05）， while BNP， sST2， cardiac mass index， Drp1， Fis1 mRNA and protein levels increased（P<0.05）. Compared with the model group， the expression of LVEF， Mfn1， Mfn2， Opal mRNA and protein increased in Shenfu Yixin granule high-dose and sacubitril valsartan sodium groups（P<0.05）， while BNP， sST2， cardiac mass index， Drp1， Fis1 mRNA and protein levels decreased（P<0.05）. Pathological observation showed that compared with the sham operation group， the model group had disordered arrangement of myocardial cells， inflammatory cell infiltration and myocardial fibrosis. Compared with the model group， the degree of inflammatory cell infiltration， myocardial or interstitial fibrosis was improved and alleviated in all administered groups. ConclusionShenfu Yixin granules can resist heart failure， reduce cardiac mass index， decrease BNP and sST2 contents， and improve cardiac function. Its mechanism may be related to the adjustment of mitochondrial dynamics.
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Objective To investigate the relationship between serum stem cell factor receptor(c-kit)and myocardial fibrosis,cardiac function and prognosis in patients with dilated cardiomyopathy(DCM)complicat-ed with heart failure.Methods A total of 77 patients with DCM complicated with heart failure who were trea-ted in 3201 Hospital from May 2020 to June 2022 were enrolled in the study as study group,and 70 DCM pa-tients without heart failure were enrolled as the control group.The levels of serum c-kit mRNA and three my-ocardial fibrosis markers[α-smooth muscle actin(α-SMA),collagen type Ⅰ and collagen type Ⅲ]were detec-ted in the two groups.Cardiac function parameters were obtained by echocardiography.The relationship be-tween serum c-kit mRNA level and myocardial fibrosis and cardiac function was analyzed.According to the oc-currence of major adverse cardiovascular events(MACE),the patients were divided into poor prognosis group and good prognosis group.Multivariate Logistic regression analysis was used to analyze the factors affecting the prognosis of DCM patients complicated with heart failure.Receiver operating characteristic(ROC)curve was used to analyze the efficacy of serum c-kit mRNA level in predicting the prognosis of DCM patients.Results The serum c-kit mRNA level in the study group was lower than that in the control group(P＜0.05).The levels of three myocardial fibrosis indicators in the study group were higher than those in the con-trol group(P＜0.05).The left ventricular ejection fraction(LVEF)in the study group was lower than that in the control group(P＜0.05),and the left ventricular end-diastolic volume(LVEDV)and left ventricular end-systolic volume(LVESV)in the study group were higher than those in the control group(P＜0.05).Pearson correlation analysis showed that serum c-kit mRNA level was positively correlated with LVEF(r=0.677,P＜0.05),while negatively correlated with α-SMA,collagen type Ⅰ,collagen type Ⅲ,LVEDV and LVESV(r=-0.725,-0.748,-0.744,-0.745,-0.662,P＜0.05).Multivariate Logistic regression analysis showed that serum c-kit mRNA level is an independent factor for the prognosis of DCM patients with heart failure.ROC curve analysis showed that serum c-kit mRNA level had a sensitivity of 82.80％,a specificity of 81.80％,and an area under the curve of 0.829(95％CI:0.745-0.912,P＜0.001)for evaluating the progno-sis of DCM patients complicated with heart failure.Conclusion The serum c-kit mRNA level is significantly decreased in patients with DCM complicated with heart failure,and the serum c-kit mRNA level is correlated with myocardial fibrosis and cardiac function.The detection of serum c-kit mRNA level has a high efficacy in evaluating the prognosis of patients with DCM complicated with heart failure.
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Objective To observe the influence of Qishen Yiqi Guttate Pills(mainly composed of Astragali Radix,Salviae Miltiorrhizae Radix et Rhizoma,Notoginseng Radix et Rhizoma,and Dalbergiae Odoriferae Lignum)on the clinical efficacy of patients with acute myocardial infarction after percutaneous coronary intervention(PCI).Methods Sixty post-PCI patients with acute myocardial infarction of qi deficiency and blood stasis type who met the inclusion criteria were randomly divided into a treatment group and a control group,with 30 patients in each group.The control group was treated with conventional western medicine,and the treatment group was treated with Qishen Yiqi Guttate Pills on the basis of treatment for the control group.The course of treatment for the two groups lasted for 3 months.The changes of cardiac function indicators and serum levels of hypersensitive C-reactive protein(hs-CRP)and N-terminal B-type natriuretic peptide precursor(NT-pro BNP)were observed before and after the treatment in the two groups,and the incidence of cardiovascular adverse events during the treatment in the two groups were also compared.Results(1)After treatment,the serum hs-CRP and NT-pro BNP levels of patients in the two groups were significantly decreased(P＜0.05)and the left ventricular ejection fraction(LVEF)was significantly increased(P＜0.05)compared with those before treatment.And the effects on lowering the levels of serum hs-CRP and NT-pro BNP and on increasing LVEF of the treatment group were significantly superior to those of the control group,the differences being statistically significant(P＜0.05).(2)During the treatment period,the incidence of cardiovascular adverse events in the treatment group was 6.67%(2/30),which was significantly lower than 26.67%(8/30)of the control group,and the difference was statistically significant when comparing the two groups(P＜0.05).Conclusion Qishen Yiqi Guttate Pills can effectively improve cardiac function,decrease serum hs-CRP and NT-pro BNP levels,and reduce the occurrence of adverse cardiovascular events in post-PCI patients with acute myocardial infarction of qi deficiency and blood stasis type.
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BACKGROUND:Our previous experimental results have shown that hyaluronic acid hydrogel can act as a vehicle for bone marrow mesenchymal stem cell delivery to improve the cardiac function of rats with myocardial infarction. OBJECTIVE:To explore the molecular mechanism of bone marrow mesenchymal stem cells and hyaluronic acid hydrogel in promoting damaged heart repair. METHODS:Bone marrow mesenchymal stem cells from male Sprague-Dawley rats were isolated and cultured,and then hyaluronic acid-encapsulated bone marrow mesenchymal stem cells were cultured in vitro in a three-dimensional manner.A model of myocardial infarction was made by ligating the left anterior descending artery of female Sprague-Dawley rats.After 1 week,the model rats were screened by ultrasonic testing and then eligible ones were randomly divided into four groups:PBS group(n=12),hyaluronic acid group(n=12),bone marrow mesenchymal stem cell group(n=15),and hyaluronic acid-encapsulated bone marrow mesenchymal stem cell group(n=15).At 1 week after ligation,the model rats underwent the secondary thoracotomy followed by corresponding injections into the infarcted region and its marginal zone.The expression levels of matrix metalloproteinase-2,vascular endothelial growth factor,thymosin β4 and c-Kit were examined at post-injection day 1,week 1 and week 2 by western blot assay.At post-injection week 2,immunofluorescence staining was used to detect the differentiation of transplanted cells. RESULTS AND CONCLUSION:(1)The expression levels of matrix metalloproteinase-2 and vascular endothelial growth factor protein in the infarct zone in the bone marrow mesenchymal stem cell group were significantly up-regulated at week 1 compared with the other three groups(P<0.05).At week 2,the hyaluronic acid group had a lower expression of matrix metalloproteinase-2 and vascular endothelial growth factor protein than the other three groups(P<0.05).However,the expression of matrix metalloproteinase-2 and vascular endothelial growth factor protein in the hyaluronic acid+bone marrow mesenchymal stem cell group was not significantly different compared with the bone marrow mesenchymal stem cell group.This was primarily attributable to a prolonged paracrine effect via the controlled release of the hyaluronic acid hydrogel.This prolonged paracrine effect offsets the inhibitory effect induced by hyaluronic acid hydrogel at 2 weeks.(2)Compared with the PBS group,thymosin β4 and c-Kit expression levels in the hyaluronic acid group,bone marrow mesenchymal stem cell group and bone marrow mesenchymal stem cell+hyaluronic acid group were significantly increased(P<0.05).(3)No differentiation of transplanted cells into cardiomyocytes or blood vessels was detected 2 weeks after transplantation.(4)It is indicated that transplanted bone marrow mesenchymal stem cells promote myocardial repair through the paracrine effect,and hyaluronic acid hydrogel prolongs the paracrine effect of transplanted bone marrow mesenchymal stem cells.
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Objective:To study the correlation between serum N-terminal pro-B-type natriuretic peptide (NT-proBNP) level and echocardiographic parameters in patients with chronic Keshan disease, providing reference for diagnosis and prognosis evaluation of chronic Keshan disease.Methods:Ninety-nine patients with chronic Keshan disease who received standardized treatment at Jingchuan County People's Hospital in Pingliang City, Gansu Province from January to December 2020 were selected. Among them, 16 patients were classified as cardiac function grade Ⅱ according to New York Heart Association (NYHA), 69 as grade Ⅲ and 14 as grade Ⅳ. The patients underwent echocardiography and their serum NT-proBNP level was measured using fluorescence immunochromatography. The differences in serum NT-proBNP levels among patients with different cardiac function grades were compared, and the correlation between cardiac function grades, serum NT-proBNP level and echocardiographic parameters was analyzed.Results:The serum NT-proBNP levels in patients with cardiac function grades Ⅱ, Ⅲ, and Ⅳ were (1 107.26 ± 268.03), (2 125.98 ± 293.02), and (8 268.59 ± 2 659.50) pg/ml, respectively. The differences among the three groups were statistically significant ( F = 13.94, P < 0.001). The serum NT-proBNP level was positively correlated with cardiac function grades ( r = 0.44, P < 0.001), left ventricular end-diastolic diameter, left ventricular end-systolic diameter, and left atrial diameter ( r = 0.45, 0.52, 0.38, P < 0.001), and negatively correlated with fractional shortening and left ventricular ejection fraction ( r = - 0.39, - 0.46, P < 0.001). Conclusions:The serum NT-proBNP level in patients with chronic Keshan disease with different cardiac function grades is different, and is positively correlated with echocardiographic parameters reflecting the degree of cardiac structural and functional impairment. The NT-proBNP level may become an early diagnostic, grading, and prognostic indicator for chronic Keshan disease.
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Abstract Objective: To explore the risk factors of Atrial Fibrillation (AF) with Cognitive Impairment (CI) and to analyze the relationship between cardiac function parameters and the degree of CI in patients. Methods: 120 AF patients were selected, and Montreal Cognitive Assessment (MoCA) was used to distinguish between AF patients with and without CI. Univariate analysis and multivariate Logistic regression analysis were used to evaluate the impact of sociodemographic data, disease-related data, and clinical data on risk factors for AF with CI. Pearson's method was used to analyze the correlation between cardiac function parameters and cognitive function scores in AF patients. Results: There were 89 patients with CI and 31 patients without CI, and the MoCA scores of patients with CI were lower than those in patients without CI. Age, occupational status, educational level, combined smoking history, drinking history, and heart failure, as well as systolic blood pressure, diastolic blood pressure, total cholesterol, triglyceride, C-reactive protein, free thyroxine, free triiodothyronine, and D-dimer were risk factors for the patient with CI. Left atrial diameter, left ventricular end-diastolic diameter, left ventricular end-systolic diameter, and left atrial maximum volume in patients with CI were higher than those in patients without CI, and left ventricular ejection fraction and peak early diastolic velocity/peak late-diastolic mitral velocity ratio were lower. Conclusion: The cardiac function parameters of patients are closely related to attention, orientation, memory, visuospatial, and executive ability. Cardiac function parameters were closely related to cognitive functions.
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ObjectiveTo analyze the effect of moderate intensity aerobic combined with low intensity resistance exercise on old patients with coronary heart disease and hypertension. MethodsFrom November, 2021 to May, 2022, 16 patients with coronary heart disease and hypertension in Wuhan Donghu Hospital were divided into control group (n = 8) and experimental group (n = 8). Based on the World Health Organization Family of International Classification (WHO-FICs), the exercise intervention program was constructed. The control group accepted routine treatment, and the experimental group accepted moderate intensity aerobic combined with low intensity resistance exercise in addition, for eight weeks. They were measured lung function and cardiac function with cardiopulmonary exercise test system, and assessed with Timed 'Up and Go' Test, 6-Minute Walk Distance, 2-Minute Step Test, 30-Second Sit to Stand Test and grip strength before and after intervention. ResultsThe vital capacity, forced vital capacity, forced expiratory volume in the first second, forced expiratory volume in the one second as percentage of predicted volume, peak expiratory flow and maximal voluntary ventilation improved in the experimental after intervention (|t| > 2.391, P < 0.05), and the vital capacity, force vital capacity and maximal voluntary ventilation were more in the experimental group than in the control group (|t| > 2.207, P < 0.05). Peak oxygen uptake, anaerobic subthreshold oxygen uptake, metabolic equivalents, oxygen pulse, maximum work load and exercise load time improved in the experimental group after intervention (|t| > 2.823, P < 0.05), and they all were better in the experimental group than in the control group (|t| > 2.295, P < 0.05). Systolic blood pressure improved in both the groups (|t| > 4.608, P < 0.01), and diastolic blood pressure improved in the experimental group (t = 5.964, P < 0.01); while systolic blood pressure was less in the experimental group than in the control group (t = -3.654, P < 0.01). The performances of Timed 'Up and Go' Test, 6-Minute Walk Distance, 2-Minute Step Test, 30-Second Sit to Stand Test and grip strength improved in the experimental group after intervention (|t| > 2.996, P < 0.05), and all the performances were better in the experimental group than in the control group (|t| > 2.220, P < 0.05). ConclusionThe moderate intensity aerobic combined with low resistance exercise developed based on WHO-FICs can improve the cardiac function, lung function, cardiac load and motor function of old patients with coronary heart disease and hypertension.
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ObjectiveThis study was designed to explore the effect of MG53 on cardiac function affected by acute doxorubicin （DOX）-induced cardiotoxicity （DIC） in mice and its possible mechanism. MethodsIn vivo， C57BL/6 mice were injected intraperitoneally with twenty mg/kg DOX for one week to induce the acute DIC. In vitro， neonatal rat cardiomyocytes （NRCs） were treated with 1 μmol/L DOX to induce DIC. A small animal ultrasound imaging system was used to evaluate cardiac function， and the left ventricular changes in ejection fraction （EF） and fraction shortening （FS） were measured. qPCR technology was used to evaluate cardiac remodeling related factors ANP， BNP and α-MHC， autophagy-related factors Beclin1 and LC3， and apoptosis-related factor CASPASE3. Autophagy-related protein levels of Beclin1， LC3 and apoptosis-related protein levels of caspase3 were assessed by Western Blot. Transmission electron microscopy （TEM） was used to detect autophagosomes in heart tissues. TUNEL assay kit was used to detect apoptosis in neonatal murine cardiomyocytes. ResultsThe small animal ultrasound imaging revealed cardiac function was significantly reduced by doxorubicin in the DOX group and DOX+AAV9-NC group compared with the sham group （EF： Sham： 86.06 ± 2.08 vs. DOX：58.97 ± 1.62， P < 0.000 1； Sham： 86.06 ± 2.08 vs. DOX+AAV9-NC： 59.00 ± 1.86， P < 0.000 1. FS： Sham： 45.47 ± 1.95 vs. DOX：30.68 ± 1.21， P < 0.000 1； Sham： 45.47 ± 1.95 vs. DOX+AAV9-NC： 30.79 ± 1.13， P < 0.000 1）. However， the overexpression of MG53 with adeno-associated virus9 （AAV9） ameliorated cardiac dysfunction （EF： DOX+AAV9-MG53： 66.93 ± 1.78 vs. DOX+AAV9-NC： 59.00 ± 1.86， P < 0.000 1. FS： DOX+AAV9-MG53： 36.35 ± 1.33 vs. DOX+AAV9-NC： 30.79 ± 1.13， P < 0.000 1）. TEM showed autophagosomes were increased in the DOX+AAV9-MG53 group compared with the DOX group and DOX+AAV9-NC. qPCR results suggested that MG53 down-regulated the mRNA expression of cardiac remodeling related genes. Additionally， Western blot results confirmed that the protein level of caspases3 was decreased and Beclin1 and LC3 expression was increased in the DOX+AAV9-MG53 group compared with those in the DOX group and DOX+AAV9-NC group （caspase： DOX+AAV9-MG53： 1.49 ± 0.13 vs. DOX+AAV9-NC： 2.49 ± 0.46， P = 0.000 2； Beclin-1： DOX+AAV9-MG53：0.82 ± 0.02 vs. DOX+AAV9-NC： 0.62 ± 0.05， P < 0.000 1； LC3： DOX+AAV9-MG53： 0.83 ± 0.04 vs. DOX+AAV9-NC： 0.40 ± 0.05， P < 0.000 1）. In contrast， knockdown of MG53 significantly up-regulated the protein level of Caspase3 and significantly down-regulated the protein level of Beclin1 and LC3 （caspase： DOX+si-MG53： 4.52 ± 0.28 vs. DOX+si-NC： 3.37 ± 0.08， P < 0.000 1； Beclin-1： DOX+si-MG53： 0.34 ± 0.06 vs. DOX+si-NC： 0.54 ± 0.07， P = 0.026 2； LC3： DOX+si-MG53： 0.41 ± 0.12 vs. DOX+si-NC： 0.70 ± 0.07， P = 0.001 5）. TUNEL analysis showed overexpression of MG53 significantly inhibited the apoptosis of cardiomyocytes （DOX+Ad-MG53： 9.41 ± 0.53 vs. DOX+Ad-NC： 29.34 ± 7.29， P < 0.000 1）， and knockdown of MG53 significantly facilitate the apoptosis of cardiomyocytes （DOX+si-MG53： 71.34 ± 5.90 vs. DOX+si-NC： 32.19 ± 9.91， P < 0.000 1）. ConclusionMG53 inhibits cardiac apoptosis and enhances autophagy， which delays cardiac remodeling and ameliorates cardiac dysfunction.
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ObjectiveTo evaluate the effect of the therapy of dispelling stasis， removing toxin， and promoting urination （modified Linggui Zhugantang combined with Xuebijing injection） on the prognosis of sepsis-induced cardiomyopathy （SICM）. MethodA total of 96 patients were randomly assigned into an observation group and a control group， with 48 patients in each group. The patients in the control group received sepsis bundle， and those in the observation group additionally received the therapy of dispelling stasis， removing toxin， and promoting urination （intravenous drip of Xuebijing injection and oral administration of modified Linggui Zhugantang）. The course of treatment in both groups was 7 days. The disease and prognosis indicators ［28-day mortality， intensive care unit （ICU） length of stay， major adverse cardiac events （MACE）， acute physiology and chronic health evaluation Ⅱ （APACHE Ⅱ）， sequential organ failure assessment （SOFA） score， and mortality in emergency department sepsis （MEDS） score］， cardiac function indicators ［left ventricular ejection fraction （LVEF）， E/A ratio of peak velocity blood flow from left ventricular relaxation in early diastole （the E wave） to peak velocity flow in late diastole caused by atrial contraction （the A wave）， E/e′ ratio of mitral peak velocity of early filling （E） to early diastolic mitral annular velocity （e′）， and afterload-corrected cardiac performance （ACP）］， myocardial injury markers ［high-sensitivity cardiac troponin T （hs-cTnT）， N-terminal pro-brain natriuretic peptide （NT-proBNP）， heart-type fatty acid-binding protein （H-FABP）， and high mobility group box-1 （HMGB-1）］， hemodynamic indicators ［extravascular lung water index （EVLWI）， global end-diastolic volume index （GEDVI）， cardiac index （CI）， and systemic vascular resistance index （SVRI）］， and TCM syndrome scores were assessed and compared between the two groups. ResultThe 28-day mortality and the incidence of MACE in the observation group were slightly lower than those in the control group. The ICU length of stay in the observation group was shorter than that in the control group （P<0.05）. After treatment， APACHE Ⅱ， SOFA， MEDS， syndrome score of stasis-caused internal obstruction， E/e′ ratio， hs-cTnT， NT-proBNP， H-FABP， and HMGB1 decreased compared with those before treatment （P<0.05）， while LVEF， E/A ratio， and ACP increased （P<0.05）. Moreover， the changes were more significant in the observation group （P<0.05）. On days 3， 5， and 7 after treatment， the EVLWI and SVRI in the observation group were lower than those in the control group （P<0.05）， while CI showed an opposite trend （P<0.05）. The observation group had higher GEDVI than the control group on days 3 and 5 after treatment （P<0.05）. ConclusionOn the basis of conventional bundle therapy， modified Linggui Zhugantang combined with Xuebijing injection with the effect of dispelling stasis， removing toxin， and promoting urination can inhibit the generation of myocardial injury markers and improve hemodynamics to shorten the length of ICU stay， mitigate the TCM syndrome， and reduce the risk of death， thereby improving the prognosis of SICM.
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Objective To explore the effects of recombinant human brain natriuretic peptide combined with levosimendan on cardiac function,myocardial fibrosis and safety in patients with acute heart failure(AHF).Methods 90 patients with AHF admitted to Changzhou First People's Hospital from May 2021 to April 2023 were randomly divided into the intervention group and the control group.The intervention group was treated with recombinant human brain natriuretic peptide combined with levosimendan,and the control group was treated with levosimendan.Both groups were treated for 14 days.Left ventricular ejection fraction(LVEF),left ventricular end-diastolic diameter(LVEDD)and heart rate(HR)were recorded before and after treatment,and mean arterial pressure(MAP)was calculated.The levels of cardiac troponin T(cTnT)and myocardial creatine kinase isoenzyme(CK-MB)were measured in both groups.The levels of interleukin-6(IL-6),tumor necrosis factor-α(TNF-α)and high-sensitivity C-reactive protein(hs-CRP)inflammatory factors were detected in both groups to assess the inflammation of the two groups.Serum soluble human stromal lysin(sST2)and serum fibroblast growth factor-21(FGF-21)levels were detected in both groups to evaluate myocardial fibrosis levels.The incidence of adverse reactions in the two groups was observed to evaluate drug safety.Result A total of 90 AHF patients were included,with 45 cases in the intervention group and 45 cases in the control group.After 14 days of treatment,HR,CK-MB,IL-6,TNF-a,hs-CRP,sST2 and FGF-21 levels of the intervention group were lower than those of control group(P＜0.05),LVEF,cTnT and MAP were higher than those in control group(P＜0.05),and LVEDD level had no statistical difference(P＞0.05).There was no significant difference in the incidence of adverse reactions between the two groups(P＞0.05).Conclusions Recombinant human brain natriuretic peptide combined with levosimendan can effectively improve cardiac function and myocardial fibrosis in patients with AHF with good safety.
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Objective To observe the effects of sacubitril-valsartan tablets on the expressions of N terminal pro B type natriuretic peptide(NT-proBNP),troponin Ⅰ(cTnⅠ)and cardiac function in patients with chronic cardiac insufficiency.Methods Patients with chronic cardiac insufficiency who were diagnosed and treated in Beijing Friendship Hospital of Capital Medical University from November 2021 to December 2022 were selected as the study subjects,and were divided into the study group(sacubitril-valsartan tablets)and the control group(valsartan capsules)according to the random number table method.The total effective rate,cardiac function indexes[left ventricular ejection fraction(LVEF),left ventricular end systolic diameter(LVESD),left ventricular end-diastolic diameter(LEVDD)],plasma NT-proBNP,cTnⅠ,soluble growth stimulation expression gene 2 protein(sST2),angiotensin(AngⅡ)and the incidence of adverse reactions were observed in the two groups.Results A total of 100 patients with cardiac insufficiency were included in the study,with 50 in the study group and 50 in the control group.After treatment,the total effective rate of the study group was higher than that of the control group(P＜0.05).The LVEF in the study group was significantly higher than that in the control group,while the LVESD,LEVDD were significantly lower than those in the control group(P＜0.05).After treatment,the plasma of NT-proBNP,cTnⅠ,AngⅡ,and sST2 in two groups had statistical difference(P＜0.05)and the difference in the above indicators before and after treatment in two groups were statistically siginficant(P＜0.05).The differences in adverse reactions between two groups were not statistically significant(P＞0.05).Conclusion The treatment of chronic heart failure patients with sacubitril-valsartan tablets can improve heart function,prognosis,and safety.
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OBJECTIVE@#To observe the effects of electroacupuncture (EA) on cardiac function and local field potential (LFP) in sensory and motor cortices in mice with stress cardiomyopathy (SC), and to explore the possible mechanism of EA in improving SC.@*METHODS@#Twenty-seven female C57BL/6 mice were randomized into a blank group, a model group and an EA group, 9 mice in each group. In the model group and the EA group, SC model was established by continuous intraperitoneal injection of isoproterenol (ISO) for 14 days. At the same time of modeling, EA was applied at "Neiguan" (PC 6) and "Shenmen" (HT 7) in the EA group, with disperse-dense wave, in frequency of 2 Hz/15 Hz, 15 min each time, once a day for 14 days. After intervention, the total movement distance, the number of crossing grid and the number of crossing central grid of open field test within 5 minutes were observed; the left ventricular function indexes (left ventricular diameter of end-diastole [LVIDd], left ventricular diameter of end-systole [LVIDs], left ventricular volume of end-diastole [LVEDV], left ventricular volume of end-systole [LVESV], ejection fraction [EF] and fraction shortening [FS]) were detected by echocardiography; the changes in ST-segment amplitude and PR interval of electrocardiogram were observed; the morphology of myocardial tissue was observed by HE staining; the serum levels of cortisol (CORT), cardiac troponin T (cTnT) and brain natriuretic peptide (BNP) were detected by ELISA; the changes of LFP in sensory and motor cortices were recorded by Plexon multi-channel acquisition system.@*RESULTS@#Compared with the blank group, in the model group, the total movement distance, the number of crossing grid and the number of crossing central grid of open field test were decreased (P<0.05); LVIDd, LVIDs, LVEDV and LVESV were increased (P<0.05), EF and FS were decreased (P<0.05); ST-segment amplitude was increased (P<0.05) and PR interval was prolonged (P<0.05); irregular myocardial fiber arrangement, interstitial edema and inflammatory cell infiltration were observed; the serum levels of CORT, cTnT and BNP were increased (P<0.05); in the sensory cortex, the ratios of delta, theta, alpha and beta frequency bands were increased (P<0.05), the maximum energy spectrum of theta and beta frequency bands was increased (P<0.05), the power spectral density (PSD) of delta, theta, alpha, beta and gamma frequency bands was increased (P<0.05); in the motor cortex, the ratios of delta, theta, alpha and beta frequency bands were increased (P<0.05), the maximum energy spectrum as well as PSD of delta, theta, alpha, beta and gamma frequency bands were increased (P<0.05). Compared with model group, in the EA group, the total movement distance, the number of crossing grid and the number of crossing central grid of open field test were increased (P<0.05); LVIDd, LVIDs, LVEDV and LVESV were decreased (P<0.05), EF and FS were increased (P<0.05); ST-segment amplitude was decreased (P<0.05), and the PR interval was shortened (P<0.05); myocardial fiber injury and inflammatory cell infiltration were reduced; the serum levels of CORT, cTnT and BNP were decreased (P<0.05); in the sensory cortex, the ratios of theta, alpha and beta frequency bands were decreased (P<0.05), the ratio of gamma frequency band was increased (P<0.05), the maximum energy spectrum of theta frequency band as well as the PSD of theta, alpha, beta and gamma frequency bands were decreased (P<0.05); in the motor cortex, the ratios of theta, alpha and beta frequency bands were decreased (P<0.05) and the ratio of gamma frequency band was increased (P<0.05), the maximum energy spectrum of delta frequency band was increased (P<0.05), the maximum energy spectrum of theta frequency band as well as the PSD of theta and gamma frequency bands were decreased (P<0.05).@*CONCLUSION@#EA can improve cardiac function in mice with stress cardiomyopathy, and its mechanism may be related to the regulation of local field potentials in sensory and motor cortices.
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Female , Mice , Animals , Electroacupuncture , Takotsubo Cardiomyopathy , Motor Cortex , Mice, Inbred C57BL , MyocardiumABSTRACT
Objective:To understand the morphologic and functional changes of ventricles between pre- and post- cone reconstruction(CR) surgery in children with Ebstein’s anomaly(EA).Methods:The clinical data of children with EA who underwent CR and cardiac magnetic resonance(CMR) in Shanghai Children’s Medical Center between July 2011 to April 2019 were collected and analyzed. Ventricular functions were assessed with the use of ejection fraction(EF), stroke volume index(SVI), cardiac output(CO), and cardiac index(CI). Ventricular morphologies were assessed with the use of end-diastolic ventricular volume(EDV), end-diastolic ventricular volume index(EDVI) and ventricular cine images. Paired student t tests and Wilcoxon rank sum tests were used for statistical analysis. Results:There were a total of 32 children with EA who underwent CR and CMR, with 13 males and 19 females, a median operative age of 2.9 years old(0.6-15.5 years old), and a mean follow-up time of(4.4±1.9) years. Seven patients had both preoperative and postoperative CMR, with a mean follow-up time of(3.3±1.4) years; Eleven patients had two or more postoperative CMR, with a mean interval time of(1.9±1.0) years. After the surgery, the median tricuspid-regurgitation grade decreased from 3 to 2, and the median New York Heart Association functional class improved from 2.5 to 1, the left ventricle(LV)-SVI, LV-EDV and LV-EDVI increased from 29.8 ml/m 2 to 43.2 ml/m 2( P=0.039), from 56.4 ml to 86.9 ml( P=0.004), from 50.5 ml/m 2 to 68.4 ml/m 2( P=0.022), respectively. And the long-term LV-EDV increased from 56.6 ml to 74.7 ml( P=0.002) when compared to that of early postoperative. There was no significant differences in right ventricle(RV)-EF, RV-SVI, RV-CO, RV-CI, RV-EDV and RV-EDVI between pre- and post- CR( P>0.05); but the long-term postoperative RV-CO and RV-EDV increased from 3.1 L/min to 4.1 L/min( P=0.008), from 67.5 ml to 96.5 ml( P<0.001), respectively, when compared with those of early postoperative. Conclusion:CR improves the function and morphology of both ventricles in children with EA. And although postoperative ventricles grow well, RV dysfunction persists.
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ObjectiveTo investigate the clinical efficacy and safety of Qihuang Jianpi Zishen granules in the treatment of cardiac involvement in systemic lupus erythematosus （SLE）. MethodA total of 62 SLE patients with cardiac involvement treated in the Department of Rheumatology and Immunology， the First Affiliated Hospital of Anhui University of Chinese Medicine from June 2021 to December 2022 were randomized into control and observation groups （n=31）. The control group was treated with methylprednisolone tablets and hydroxychloroquine sulfate tablets， and the observation group with Qihuang Jianpi Zishen granules on the basis of the therapy in the control group. After 12 weeks of treatment， the two groups were compared in terms of the therapeutic effect， cardiac function indicators ［left atrial end-diastolic diameter （LADd）， left ventricular end-diastolic diameter （LVDd）， left ventricular posterior wall thickness （LVPWTd）， peak blood flow velocity in early diastolic period （peak E）， peak blood flow velocity in late diastolic period （peak A）， E/A ratio， stroke volume （SV）， left ventricular ejection fraction （LVEF）， left ventricular short axis shortening rate （LVFS）， and B-type natriuretic peptide （BNP）］， vascular damage indicators ［nitric oxide （NO）， endothelin-1 （ET-1）， vascular endothelial growth factor （VEGF）， and homocysteine （Hcy）］， inflammation indicators ［erythrocyte sedimentation rate （ESR） and hypersensitive C-reactive protein （Hs-CRP）］， anti-double-stranded DNA （dsDNA） antibodies， disease activity index （SLEDAI） score， mitigation of symptoms and signs， and occurrence of adverse reactions. ResultThe total response rate in the observation group was 87.09%， which was higher than that （67.74%） in the control group （P<0.01）， and the incidence of adverse reactions had no significant difference between the two groups. After treatment， the control group showed lowered LVDd， LVPWTd， BNP， ET-1， VEGF， and Hcy （P<0.05） and increased E peak， E/A ratio， SV， LVEF， and LVFS （P<0.05）. In the observation group， LADd， LVDd， LVPWTd， peak A， BNP， NO， ET-1， VEGF， and Hcy decreased （P<0.05）， while peak E， E/A ratio， SV， LVEF and LVFS increased （P<0.05） after treatment. The treatment in both groups decreased the scores of palpitation， chest tightness， dyspnea， and edema （P<0.05）， reduced ESR， Hs-CRP， ds-DNA， and SLEDAI （P<0.05）. After treatment， the observation group had lower LADd， LVDd， LVPWTd， peak A， BNP， and scores of palpation， chest tightness， dyspnea， and edema （P<0.05） and higher peak E， E/A ratio， SV， LVEF， and LVFS （P<0.05） than the control group. In addition， the observation group had lower NO， ET-1， VEGF， Hcy， ESR， Hs-CRP， ds-DNA， and SLEDAI than the control group （P<0.05）. ConclusionQihuang Jianpi Zishen granules combined with hydroxychloroquine sulfate and methylprednisolone can improve multiple indicators and mitigate the symptoms and signs of SLE patients with cardiac involvement， demonstrating a clinical application value.