1.Clinical application and efficacy analysis of castor stent graft in the treatment of aortic diseases
Jiaxiang ZHUANG ; Ren WANG ; Xianlu MA ; Qi XIE ; Zhi DOU ; Fuzhen ZHENG ; Haiyu CHEN ; Yuanxiang CHEN ; Licheng YAN ; Hongjie ZHOU
Chinese Journal of Thoracic and Cardiovascular Surgery 2024;40(2):79-84
Objective:To summarize the use of Castor stent graft in aortic diseases and to analyze their efficacy.Methods:The clinical data of patients with aortic diseases treated with Castor stent graft from November 2017 to August 2022 in Fujian Provincial Hospital were collected and divided into branched stent group and branched stent co-operative group according to the operation method, and the clinical data of both groups were summarized.Results:A total of 75 cases of aortic disease were treated with Castor stents, and finally 53 cases were classified as branched stent group and 22 cases as branched stent co-operative group. The operations in both groups were successful. The median operative time in the branched stent group was 120(100, 160)min, and the median postoperative hospital stay was 7.0(5.5, 10.5)days.There was no postoperative ischemic stroke, no spinal cord ischemia. One case of new aortic dissection occurred. During follow-up, there was one lost case and two deaths, and the rest did not have endoleak, branch stent stenosis, ischemic stroke or re-intervention. In the branched stent co-operative group, there was one postoperative ischemic stroke, one case of slight stenosis of the left subclavian artery stent during follow-up, the remaining cases had satisfactory postoperative outcomes.Conclusion:Castor stent graft is a safe and effective procedure in the treatment of aortic diseases. And Castor stent graft can be used in combination with other endovascular repair techniques in the treatment of complex aortic diseases, with safe and reliable postoperative outcomes.
2.Melatonin enhances the efficacy of anti-PD-L1 by improving hypoxia in residual tumors after insufficient radiofrequency ablation
Ren YANQIAO ; Zhu LICHENG ; Guo YUSHENG ; Ma JINQIANG ; Yang LIAN ; Zheng CHUANSHENG ; Dong XIANGJUN
Journal of Pharmaceutical Analysis 2024;14(8):1176-1188
The hypoxic microenvironment and inflammatory state of residual tumors caused by insufficient radio-frequency ablation(iRFA)are major reasons for rapid tumor progression and pose challenges for immu-notherapy.We retrospectively analyzed the clinical data of patients with hepatocellular carcinoma(HCC)treated with RFA and observed that iRFA was associated with poor survival outcomes and progression-free survival.Using an orthotopic HCC mouse model and a colorectal liver metastasis model,we observed that treatment with melatonin after iRFA reduced tumor growth and metastasis and achieved the best out-comes when combined with anti-programmed death-ligand 1(anti-PD-L1)therapy.In mechanism,melatonin inhibited the expression of epithelial-mesenchymal transitions,hypoxia-inducible factor(HIF)-1 α,and PD-L1 in tumor cells after iRFA.Flow cytometry revealed that melatonin reduced the proportion of myeloid-derived suppressor cells and increased the proportion of CD8+T cells.Transcriptomic analysis revealed an upregulation of immune-activated function-related genes in residual tumors.These findings demonstrated that melatonin can reverse hypoxia and iRFA-induced inflammation,thereby overcoming the immunosuppressive tumor microenvironment(TME)and enhancing the efficacy of immunotherapy.
3.Analysis of incidence and mortality of breast cancer in tumor registration areas of Shanxi Province in 2019
Zhaohui MA ; Ling CAO ; Licheng LYU ; Xuerong GUO ; Wangfei CUI ; Xinchen WANG ; Ruifeng ZHANG ; Yongzhen ZHANG
Cancer Research and Clinic 2024;36(9):659-663
Objective:To investigate the incidence and mortality of breast cancer in tumor registration areas of Shanxi Province in 2019.Methods:A cross-sectional study was conducted. The tumor registration data reported by 13 tumor registration areas in Shanxi Province in 2019 were collected, and the overall incidence and mortality of breast cancer were analyzed. The stratified analysis was conducted by gender and region, and the incidence, mortality, accumulation rate (0-74 years old), age-specific incidence rate, age-specific mortality rate, Chinese population standardized rate and world population standardized rate were calculated. The standard population was based on the 2000 China population census standard population composition and Segi world standard population composition.Results:In 2019, there were 871 new cases of breast cancer in the tumor registration areas of Shanxi Province, with an incidence rate of 17.83/100 000, and 202 deaths, with a mortality rate of 4.13/100 000. The age-specific incidence of breast cancer was at a low level in 0-25 years old, it increased rapidly after 30 years old, and reached a peak in people aged 60 years old. The age-specific mortality showed a slow rising trend with the increase of age, and increased rapidly in people over 75 years old. The age-specific incidence and mortality of breast cancer in female were higher than those in male. Although the general trend of change concerning urban and rural age-specific incidence was similar, the trend of change concerning urban and rural age-specific mortality had their own characteristics. In 4 urban tumor registration areas, the highest male and female Chinese population standardized incidence rates were found in Yuci District of Jinzhong City (0.62/100 000) and Yangquan City (41.86/100 000). Male Chinese population standardized mortality rate was 0/100 000, and the highest female Chinese population standardized mortality rate was found in Yangquan City (12.62/100 000). In 9 rural tumor registration areas, the highest male and female Chinese population standardized incidence rates were found in Jishan County (2.59/100 000) and Pingding County (36.42/100 000). The highest Chinese population standardized mortality rates were found in Yuanqu County (0.89/100 000) and Jishan County (4.82/100 000).Conclusions:Women, urban area people and middle-aged and elderly people are the foci of breast cancer prevention and control in Shanxi Province.
4.Microsurgical treatment of carotid artery stenosis combined with tortuosity:a series of nine cases
Licheng ZHANG ; Fuye CHEN ; Zhenxue XIN ; Jinbang MA ; Chuangang WANG ; Tao PENG ; Xinzhi WANG
Chinese Journal of Cerebrovascular Diseases 2024;21(12):823-830
Objective To explore the microsurgical treatment strategies for patients with carotid artery stenosis complicated by tortuosity.Methods A retrospective study was conducted on 9 patients with carotid artery stenosis and tortuosity who underwent microsurgical treatment in the Department of Neurosurgery,the Second People's Hospital of Liaocheng,from June 2019 to August 2023.Patient demographics and clinical data,including sex,age,initial admission diagnosis,clinical symptoms,risk factors for carotid artery stenosis(hypertension,diabetes,hyperlipidemia,smoking,drinking),pre-operative and contralateral vascular imaging were collected.According to the type of vascular tortuosity,three surgical methods were employed:(1)For"C"-shaped tortuosity of the internal carotid artery(ICA),the ICA was divided obliquely at the carotid bifurcation,and eversion carotid endarterectomy was performed.Then ICA was opened longitudinally along its medial side,the common carotid artery(CCA)was extended proximally along its lateral border.The ICA was end-to-side anastomosis anastomosed to the CCA.(2)For coiling of the ICA,the ICA was divided obliquely at the carotid bifurcation and eversion carotid endarterectomy was completed.The redundant segment of the ICA origin was resected,and an end-to-side anastomosis between the ICA and CCA was performed.(3)For cases of kinking of both the ICA and external carotid artery(ECA),or kinking of the CCA,the technique was performed by transection of the CCA,and then eversion carotid endarterectomy was performed,and part of the CCA was resected.After downward mobilization of the ICA and ECA,an end-to-end anastomosis of the CCA was carried out.Postoperatively,all patients underwent neck CT angiography(CTA)and duplex ultrasound examination within 1-3d to assess carotid patency,tortuosity improvement,and hemodynamic changes.Surgical success was defined as residual stenosis ≤30%,improved tortuosity,and no occurrence of stroke within 1-3d after surgery.Postoperative complications,including stroke,myocardial infarction,hoarseness,surgical site bleeding,swelling,and poor wound healing,were also observed.Follow-up carotid ultrasound was performed at 1,6,and 12 months to monitor for restenosis(peak systolic velocity>220 cm/s or>70%reduction in vessel diameter).Results Among the 9 patients,4 were males and 5 were females;the age ranged from 61 to 74 years,with an average of(67±4)years.3 cases had asymptomatic severe stenosis,3 cases had symptomatic moderate stenosis,and 3 cases had symptomatic severe stenosis.There were 9 cases of previous hypertension,5 cases of diabetes,6 cases of hyperlipidemia,4 cases of coronary heart disease,5 cases of smoking,and 4 cases of drinking.There were 5 cases of ICA"C"-shaped tortuosity,2 cases of coiling of the ICA,1 case of both ICA and ECA tortuosity,and 1 case CCA tortuosity.All 9 patients successfully underwent surgery.Postoperative neck CTA within 1-3 d demonstrated patency of the operated carotid artery and improvement in vascular tortuosity in all cases,with duplex ultrasound showing favorable hemodynamic status.No postoperative complications were observed.Follow-up at 1,6,and 12 months revealed no restenosis in any of the patients.Conclusions Microsurgical surgery is an effective method for treating carotid artery stenosis complicated by tortuosity.Detailed preoperative evaluation and selection of appropriate surgical techniques are essential.This study is a single-center study with a small sample size,and the findings require further validation through multi-center,large-scale research.
5.Microsurgical treatment of carotid artery stenosis combined with tortuosity:a series of nine cases
Licheng ZHANG ; Fuye CHEN ; Zhenxue XIN ; Jinbang MA ; Chuangang WANG ; Tao PENG ; Xinzhi WANG
Chinese Journal of Cerebrovascular Diseases 2024;21(12):823-830
Objective To explore the microsurgical treatment strategies for patients with carotid artery stenosis complicated by tortuosity.Methods A retrospective study was conducted on 9 patients with carotid artery stenosis and tortuosity who underwent microsurgical treatment in the Department of Neurosurgery,the Second People's Hospital of Liaocheng,from June 2019 to August 2023.Patient demographics and clinical data,including sex,age,initial admission diagnosis,clinical symptoms,risk factors for carotid artery stenosis(hypertension,diabetes,hyperlipidemia,smoking,drinking),pre-operative and contralateral vascular imaging were collected.According to the type of vascular tortuosity,three surgical methods were employed:(1)For"C"-shaped tortuosity of the internal carotid artery(ICA),the ICA was divided obliquely at the carotid bifurcation,and eversion carotid endarterectomy was performed.Then ICA was opened longitudinally along its medial side,the common carotid artery(CCA)was extended proximally along its lateral border.The ICA was end-to-side anastomosis anastomosed to the CCA.(2)For coiling of the ICA,the ICA was divided obliquely at the carotid bifurcation and eversion carotid endarterectomy was completed.The redundant segment of the ICA origin was resected,and an end-to-side anastomosis between the ICA and CCA was performed.(3)For cases of kinking of both the ICA and external carotid artery(ECA),or kinking of the CCA,the technique was performed by transection of the CCA,and then eversion carotid endarterectomy was performed,and part of the CCA was resected.After downward mobilization of the ICA and ECA,an end-to-end anastomosis of the CCA was carried out.Postoperatively,all patients underwent neck CT angiography(CTA)and duplex ultrasound examination within 1-3d to assess carotid patency,tortuosity improvement,and hemodynamic changes.Surgical success was defined as residual stenosis ≤30%,improved tortuosity,and no occurrence of stroke within 1-3d after surgery.Postoperative complications,including stroke,myocardial infarction,hoarseness,surgical site bleeding,swelling,and poor wound healing,were also observed.Follow-up carotid ultrasound was performed at 1,6,and 12 months to monitor for restenosis(peak systolic velocity>220 cm/s or>70%reduction in vessel diameter).Results Among the 9 patients,4 were males and 5 were females;the age ranged from 61 to 74 years,with an average of(67±4)years.3 cases had asymptomatic severe stenosis,3 cases had symptomatic moderate stenosis,and 3 cases had symptomatic severe stenosis.There were 9 cases of previous hypertension,5 cases of diabetes,6 cases of hyperlipidemia,4 cases of coronary heart disease,5 cases of smoking,and 4 cases of drinking.There were 5 cases of ICA"C"-shaped tortuosity,2 cases of coiling of the ICA,1 case of both ICA and ECA tortuosity,and 1 case CCA tortuosity.All 9 patients successfully underwent surgery.Postoperative neck CTA within 1-3 d demonstrated patency of the operated carotid artery and improvement in vascular tortuosity in all cases,with duplex ultrasound showing favorable hemodynamic status.No postoperative complications were observed.Follow-up at 1,6,and 12 months revealed no restenosis in any of the patients.Conclusions Microsurgical surgery is an effective method for treating carotid artery stenosis complicated by tortuosity.Detailed preoperative evaluation and selection of appropriate surgical techniques are essential.This study is a single-center study with a small sample size,and the findings require further validation through multi-center,large-scale research.
6.Suggestions on the adjustment of therapeutic drugs for COPD in the national essential medicine list
Licheng ZHANG ; Ming GAO ; Yufei FENG ; Yanliang MA ; Jiahua LENG
China Pharmacy 2023;34(16):1931-1935
OBJECTIVE To provide a reference for the standardized treatment of chronic obstructive pulmonary disease (COPD) and the adjustment of therapeutic drugs for COPD in the national essential medicine list. METHODS Relevant clinical experts, pharmaceutical experts and medical insurance experts were invited to sort out the COPD treatment drugs involved in the domestic and foreign COPD clinical guidelines, the national essential medicine list, the WHO standard list of essential medicine, the national medical insurance catalogue, and comparatively analyzed the COPD treatment drugs. RESULTS & CONCLUSIONS Compared with domestic clinical guidelines, foreign clinical guidelines included an additional COPD triple preparation, while involving fewer types of expectorants and antioxidants; there were only 12 kinds of COPD treatment drugs included in the WHO standard list of essential medicine, while there were 18 kinds in the national essential medicine list in China, and more theophylline drugs, expectorants and antioxidants were included. In addition, 15 kinds of COPD treatment drugs were found in both the national clinical guidelines and the national medical insurance catalogue, but not in the national essential medicine list, including terbutaline, levalbuterol hydrochloride, salmeterol, formoterol, indacaterol, beclometasone, mometasone furoate, salbutamol ipratropium, glycopyrronium formoterol, umeclidinium vilanterol, indacaterol glycopyrronium, beclometasone formoterol, budesonide/glycopyrrolate/formoterol fumarate, fluticasone furoate/vilanterol/umeclidinium, and fudosteine, which were mainly long-acting beta 2-agonists and COPD triple preparations. These drugs had certain evidence-based medicine evidence, their efficacy and economy had certain advantages, and their impact on the budget of the medical insurance fund was controllable. Therefore, it is suggested that the aforementioned drugs should be included in the essential medicines list in the subsequent update.
7.Genetic modification of acetogens and optimization of fermentation process in C1-gas bioconversion.
Sai WAN ; Haoming WANG ; Xiaoqing MA ; Yang TAN ; Licheng LIU ; Fuli LI
Chinese Journal of Biotechnology 2023;39(6):2410-2429
The current linear economy model relies on fossil energy and increases CO2 emissions, which contributes to global warming and environmental pollution. Therefore, there is an urgent need to develop and deploy technologies for carbon capture and utilization to establish a circular economy. The use of acetogens for C1-gas (CO and CO2) conversion is a promising technology due to high metabolic flexibility, product selectivity, and diversity of the products including chemicals and fuels. This review focuses on the physiological and metabolic mechanisms, genetic and metabolic engineering modifications, fermentation process optimization, and carbon atom economy in the process of C1-gas conversion by acetogens, with the aim to facilitate the industrial scale-up and carbon negative production through acetogen gas fermentation.
Fermentation
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Gases/metabolism*
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Carbon Dioxide/metabolism*
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Metabolic Engineering
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Carbon/metabolism*
8.Effect of RAB10 on biological function of pancreatic cancer cells and its clinical significance
Peng KUANG ; Qinquan ZHANG ; Sheng CHENG ; Yi DONG ; Licheng WANG ; Silu ZHANG ; Jiaxin YE ; Dandan MA ; Zhonghu LI ; Zhiyong ZHANG
Acta Universitatis Medicinalis Anhui 2023;58(12):2038-2044
Objective To investigate the expression of Member RAS Oncogene Family(RAB10)in pancreatic cancer(PAAD)and its effects on the proliferation,migration,invasion and apoptosis of SW1990 cells(human pancreatic cancer cells).Methods The expression of RAB1 0 mRNA in PAAD tissues wasanalyzed by the cancer gene database GEPIA(Gene Expression Profiling Interactive Analysis)and TCGA(The Cancer Genome Atlas).Cox regression analysis was used to detect relationship between RAB10 mRNA expression and the prognosis of pan-creatic cancer patients.We targeted small interfering RNA(R4B10-siRNA)targeting RAB10 as the silence group,and constructed an overexpression plasmid(RAB10-OE)for overexpression of RAB10 as the overexpression group.The effects of silencing and overexpressionweredetected by Q-PCR;protein expression levelsweredetected by West-ern blot.EdUcellproliferation test,wound healing test,Transwelltestand flow cytometry test were used to determine the effects of RAB10 on the proliferation,migration,invasion and apoptosis of SW1990 pancreatic cancer cells.Re-sults RAB10 mRNA expression in PAAD tissues was higher than that innormal pancreatic tissues(P<0.05).The results of EdUcellproliferation testshowed that the proliferation rate of SW1990 cells in the RAB10-OE group was higher thanthat in the control group,and the proliferation rate of SW1990 cells in the RAB10-siRNA group was lower than that inthe control group(P<0.05).The results of the Transwell test and wound healing test showed that the invasion rate and mobility rate of RAB10-OE group were higher thanthose of the control group,and the mobility and invasion rate of RAB10-siRNA group were lower than those of the control group(P<0.05).The re-sults of flow cytometry test showed that the apoptosis rate was lower in the RAB10-OE group than the control group,and the apoptosis rate in the RAB10-siRNA group was higher than the control group(P<0.05).The median sur-vival time of RAB10 high expression group was significantly lower than that of RAB10 low expression group(P<0.05).Cox regression analysis showed that clinical grade,T stage,M stage and RAB10 mRNA expression were re-lated to survival and prognosis of pancreatic cancerpatients(P<0.05).Multivariate Cox regression analysis showed that the expression level of RAB10 mRNA was the independent risk factor affecting the prognosis of pancre-atic cancer patients(P<0.05).Conclusion RAB10 is highly expressed in PAAD tissues and RAB10 can pro-mote the proliferation of pancreatic cancer cells,accelerate the ability to invade and migrate,and inhibit the apop-tosis of pancreatic cancer cells.RAB10 is an independent risk factor for survival prognosis in patients with pancreat-ic cancer.
9.A multi-stage dynamic prevention and control study on hospital workplace violence based on crisis management theory
Yuanshuo MA ; Lihua FAN ; Qian WANG ; Licheng WANG ; Yu SHI ; Zhe LI ; Xin NI
Chinese Journal of Hospital Administration 2021;37(12):984-989
Objective:To construct a multi-stage dynamic prevention and control model, establish a system of intervention points and prevention and control measures for the prevention and control of workplace violence in hospitals, so as to provide guidance for hospitals and medical staffs to effectively prevent and respond to such incidents.Methods:Based on the crisis management theory, a model for the prevention and control of workplace violence in hospitals was constructed, the intervention points and prevention and control measures were screened by the Delphi method.Results:A multi-stage dynamic prevention and control model of workplace violence in hospitals was constructed, and a system of intervention points and prevention and control measures for workplace violence in hospitals were established according to the model. The system was divided into three stages: the pre-event stage contained 10 intervention points and 48 countermeasures, the in-event stage contained 6 intervention points and 17 countermeasures, and the post-event stage contained 3 intervention points and 12 countermeasures.Conclusions:It is an effective way to avoid violence and reduce the damage degree of violent incidents by selecting different countermeasures for different intervention points and carrying out multi-stage dynamic prevention and control of workplace violence in hospitals.
10.Role of ACE2-Ang (1-7)-Mas receptor axis in heart failure with preserved ejection fraction with hypertension.
Jiangbiao YU ; Yonggang WU ; Yinzhuang ZHANG ; Licheng ZHANG ; Qilin MA ; Xiuju LUO
Journal of Central South University(Medical Sciences) 2018;43(7):738-746
To investigate changes in the angiotensin converting enzyme 2 (ACE2) and angiotensin (1-7) [Ang (1-7)] and to explore the role of ACE2-Ang (1-7)-Mas receptor axis in hypertension with heart failure with preserved ejection fraction (HFPEF).
Methods: A total of 70 patients with primary hypertension and preserved left ventricular ejection fraction (LVEF>50%) were recruited and patients were divided into a hypertension group (HBP) and a heart failure with preserved ejection fraction group (HFpEF) according to the diagnostic criteria of HFpEF. Thirty-five healthy participants were selected randomly as a control group. Enzyme linked immunosorbent assays (ELISA) method was used to detect concentration of Ang (1-7), ACE2, angiotensin II (Ang II), brain natriuretic peptide (BNP) in plasma. Male Sprague- Dawley (SD) rats was randomly divided into 2 groups: An HFpEF group (n=16) and a sham group (n=8). Rats (n=8) in the AAC group were given Ang (1-7) [0.5 mg/(kg.d), intraperitoneally] for 6 weeks, and the rest were given equal dose normal saline. Then all the rats were killed, and the hearts were taken out for hematoxylineosin (HE) staining. The protein expressions of angiotensin converting enzyme (ACE), ACE2, and Mas receptor were detected by Western blot.
Results: The BNP and Ang II were significantly increased in the HBP group and the HFpEF group compared with the control group (P<0.01). There were not significantly different in levels of ACE2 and Ang (1-7) between the HBP group and control group (P>0.05), whereas those levels were significantly increased in the HFpEF group compared with the HBP group and control group (P<0.01). HE staining showed obvious hypertrophy of myocardial cell in the AAC group compared with the sham group. Hypertrophy of myocardial cell in the AAC+Ang (1-7) group was significantly higher than that in the AAC group. Expressions of ACE, ACE2, and Mas receptor proteins were significantly higher in the AAC group than those in the sham group (P<0.05), while the expressions of ACE2 and Mas receptor proteins in the AAC+Ang (1-7) group were significantly higher than those in the AAC group (P<0.05). There was no significant difference in the ACE protein expression between groups (P>0.05).
Conclusion: ACE2 and Ang (1-7) are important predictive factors for the severity of heart failure and myocardial remodeling of HFpEF with hypertension; ACE2-Ang (1-7)-Mas receptor axis may play a protective role in preventing myocardial remodeling in HFpEF with hypertension.
Angiotensin I
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physiology
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Angiotensin II
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Animals
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Atrial Remodeling
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physiology
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Case-Control Studies
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Enzyme-Linked Immunosorbent Assay
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Heart Failure
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metabolism
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physiopathology
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Humans
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Hypertension
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metabolism
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physiopathology
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Male
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Peptide Fragments
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physiology
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Peptidyl-Dipeptidase A
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physiology
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Random Allocation
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Rats
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Rats, Sprague-Dawley
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Receptors, G-Protein-Coupled
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physiology
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Stroke Volume
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Ventricular Function, Left
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physiology
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Ventricular Remodeling
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physiology

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