BACKGROUND The prevention of coronary artery disease(CAD)faces dual challenges:the aspirin-induced gastrointestinal injury,and the residual cardiovascular risk after statin treatment.Geraniol acetate(Gefarnate)is an a...BACKGROUND The prevention of coronary artery disease(CAD)faces dual challenges:the aspirin-induced gastrointestinal injury,and the residual cardiovascular risk after statin treatment.Geraniol acetate(Gefarnate)is an anti-ulcer drug.It was reported that geraniol might participate in lipid metabolism through a variety of pathways.The aim of this study was to assess the lipid-lowering effects of gefarnate in statin-treated CAD patients with residual hypertriglyceridemia.METHODS In this prospective,open-label,randomized,controlled trial,69 statin-treated CAD patients with residual hypertriglyceridemia were randomly assigned to gefarnate group and control group,received gefarnate(100 mg/3 times a day)combined with statin and statin alone,respectively.At baseline and after one-month treatment,the levels of plasma triglyceride,high-density lipoprotein cholesterol(HDL-C),low-density lipoprotein cholesterol(LDL-C)and total cholesterol were tested.RESULTS After one-month gefarnate treatment,triglyceride level was significantly lowered from 2.64 mmol/L to 2.12 mmol/L(P=0.0018),LDL-C level lowered from 2.7 mmol/L to 2.37 mmol/L(P=0.0004),HDL-C level increased from 0.97 mmol/L to 1.17mmol/L(P=0.0228).Based on statin therapy,gefarnate could significantly reduce the plasma triglyceride level(P=0.0148)and increase the plasma HDL-C level(P=0.0307).Although the LDL-C and total cholesterol levels tended to decrease,there was no statistically significant difference.CONCLUSIONS The addition of gefarnate to statin reduced triglyceride level and increased HDL-C level to a significant extent compared to statin alone in CAD patients with residual hypertriglyceridemia.This suggested that gefarnate might provide the dual benefits of preventing gastrointestinal injury and lipid lowering in CAD patients.展开更多
In order to enhance external hardness and strength, a large-scale hydraulic gate track should go through heat treatment. The current design method of hydraulic gate wheels and tracks is based on Hertz contact linear e...In order to enhance external hardness and strength, a large-scale hydraulic gate track should go through heat treatment. The current design method of hydraulic gate wheels and tracks is based on Hertz contact linear elastic theory, and does not take into account the changes in mechanical properties of materials caused by heat treatment. In this study, the heat treatment parameters were designed and analyzed according to the bearing mechanisms of the wheel and track. The quenching process of the track was simulated by the ANSYS program, and the temperature variation, residual stress, and deformation were obtained and analyzed. The metallurgical structure field after heat treatment was predicted by the method based on time-temperatuxe-transformation (TTT) curves. The results show that the analysis method and designed track heat treatment process are feasible, and can provide a reference for practical projects.展开更多
基金supported by the State Key Program of National Natural Science Foundation of China(No.82330014)the Youth Program of the National Natural Science Foundation of China(No.81900374&No.82100455)+2 种基金the Postdoctoral Science Foundation of Heilongjiang Province(LBH-Z20175)the Key Research and Development Plan of Heilongjiang Province(2022ZX06C23&JD2023SJ44)the Outstanding Youth Science Foundation in the First Affiliated Hospital of Harbin Medical University(HYD2020YQ0002&HYD2024YQ16)。
文摘BACKGROUND The prevention of coronary artery disease(CAD)faces dual challenges:the aspirin-induced gastrointestinal injury,and the residual cardiovascular risk after statin treatment.Geraniol acetate(Gefarnate)is an anti-ulcer drug.It was reported that geraniol might participate in lipid metabolism through a variety of pathways.The aim of this study was to assess the lipid-lowering effects of gefarnate in statin-treated CAD patients with residual hypertriglyceridemia.METHODS In this prospective,open-label,randomized,controlled trial,69 statin-treated CAD patients with residual hypertriglyceridemia were randomly assigned to gefarnate group and control group,received gefarnate(100 mg/3 times a day)combined with statin and statin alone,respectively.At baseline and after one-month treatment,the levels of plasma triglyceride,high-density lipoprotein cholesterol(HDL-C),low-density lipoprotein cholesterol(LDL-C)and total cholesterol were tested.RESULTS After one-month gefarnate treatment,triglyceride level was significantly lowered from 2.64 mmol/L to 2.12 mmol/L(P=0.0018),LDL-C level lowered from 2.7 mmol/L to 2.37 mmol/L(P=0.0004),HDL-C level increased from 0.97 mmol/L to 1.17mmol/L(P=0.0228).Based on statin therapy,gefarnate could significantly reduce the plasma triglyceride level(P=0.0148)and increase the plasma HDL-C level(P=0.0307).Although the LDL-C and total cholesterol levels tended to decrease,there was no statistically significant difference.CONCLUSIONS The addition of gefarnate to statin reduced triglyceride level and increased HDL-C level to a significant extent compared to statin alone in CAD patients with residual hypertriglyceridemia.This suggested that gefarnate might provide the dual benefits of preventing gastrointestinal injury and lipid lowering in CAD patients.
基金supported by the National Natural Science Foundation of China(Grant No.50979031)
文摘In order to enhance external hardness and strength, a large-scale hydraulic gate track should go through heat treatment. The current design method of hydraulic gate wheels and tracks is based on Hertz contact linear elastic theory, and does not take into account the changes in mechanical properties of materials caused by heat treatment. In this study, the heat treatment parameters were designed and analyzed according to the bearing mechanisms of the wheel and track. The quenching process of the track was simulated by the ANSYS program, and the temperature variation, residual stress, and deformation were obtained and analyzed. The metallurgical structure field after heat treatment was predicted by the method based on time-temperatuxe-transformation (TTT) curves. The results show that the analysis method and designed track heat treatment process are feasible, and can provide a reference for practical projects.