期刊文献+
共找到23,040篇文章
< 1 2 250 >
每页显示 20 50 100
转录因子ETS2在心血管疾病中的研究进展
1
作者 李海兵 丛馨 《生理科学进展》 北大核心 2026年第1期79-87,共9页
v-ets红母细胞病病毒E26原癌基因同源物2(v-ets erythroblastosis virus E26 oncogene homolog 2,ETS2)是一种转录因子,它广泛参与机体生长、发育等正常生理功能的调节以及肿瘤的发生。此外,ETS2的表达和活性异常也与心血管疾病的发生... v-ets红母细胞病病毒E26原癌基因同源物2(v-ets erythroblastosis virus E26 oncogene homolog 2,ETS2)是一种转录因子,它广泛参与机体生长、发育等正常生理功能的调节以及肿瘤的发生。此外,ETS2的表达和活性异常也与心血管疾病的发生发展有着密切的关系。本文将对ETS2在心血管疾病研究领域中的最新进展进行综述,为今后探索心血管疾病的发生机制和开发治疗靶点提供新思路。 展开更多
关键词 心血管发育 心血管疾病 转录因子 etS2
暂未订购
基于ET_(0)预报方法的单日与累积ET_(0)预报比较研究
2
作者 颜秉钧 罗玉峰 +5 位作者 徐阳 张卓 章策 崔远来 陈梦婷 胡旭铧 《中国农村水利水电》 北大核心 2026年第2期194-199,共6页
为探究不同预见期下累积参考作物腾发量(ET_(0))预报精度的变化规律,优化农业灌溉管理中的ET_(0)预测方法,以内蒙古绰勒灌区扎赉特旗站为研究对象,基于逐日天气预报数据与同期实测气象数据,采用Hargreaves-Samani(HS)模型与FAO Penman-M... 为探究不同预见期下累积参考作物腾发量(ET_(0))预报精度的变化规律,优化农业灌溉管理中的ET_(0)预测方法,以内蒙古绰勒灌区扎赉特旗站为研究对象,基于逐日天气预报数据与同期实测气象数据,采用Hargreaves-Samani(HS)模型与FAO Penman-Monteith(PM)公式,系统分析了1~7 d预见期内单日ET_(0)预报与累积ET_(0)预报的精度差异及其随预见期延长的动态变化特征。研究以PM公式计算结果为基准值,通过对比HS模型在不同预见期下的拟合度(R^(2))、平均绝对误差(MAE)及误差分布特征,明确了累积预报的优势及最优预见期。研究结果表明:(1)单日ET_(0)预报的R^(2)均值为0.89,MAE均值为0.36 mm/d,最大单日误差达0.40 mm/d,表明单日预报存在显著的不确定性;(2)累积ET_(0)预报精度显著优于单日预报,所有预见期(1~7 d)的R^(2)均提升至0.92以上,且MAE随累积天数的增加呈稳步下降趋势。具体而言,1~7 d累积预报的MAE均值分别为0.32、0.30、0.40、0.29、0.21、0.24、0.23 mm/d,其中7 d累积预报的MAE最低(0.23 mm/d),较单日预报误差降低36.1%,且误差波动范围显著收敛;(3)累积预见期延长至7 d时,误差累积效应被有效平滑,气象要素短期波动的负面影响减弱,模型系统性偏差得到抑制,预报稳定性显著增强。综上,研究揭示了累积ET_(0)预报精度随预见期延长的提升规律,并验证了7 d为最优累积预见期。研究成果可为灌区动态灌溉计划的制定提供理论依据,尤其在数据驱动型农业水资源管理中,采用7 d累积ET_(0)预报可显著提升灌溉预报的可靠性与实用性。未来研究可进一步结合数值天气预报模型,探索多尺度ET_(0)预报的耦合优化方法。 展开更多
关键词 参考作物腾发量 参考作物腾发量预报 累积et_(0)
在线阅读 下载PDF
ETV4在头颈鳞状细胞癌中的表达及意义
3
作者 石浩 史彬 《浙江临床医学》 2026年第1期44-47,共4页
目的 探讨ETS变体转录因子4(ETV4)在头颈鳞状细胞癌中的表达及其对头颈鳞状细胞癌的影响。方法 根据TCGA-HNSC数据库分析ETV4在泛癌与头颈鳞状细胞癌中的表达及其与相关临床特征的相关性。采用仙桃学术进行生存分析和免疫细胞浸润相关... 目的 探讨ETS变体转录因子4(ETV4)在头颈鳞状细胞癌中的表达及其对头颈鳞状细胞癌的影响。方法 根据TCGA-HNSC数据库分析ETV4在泛癌与头颈鳞状细胞癌中的表达及其与相关临床特征的相关性。采用仙桃学术进行生存分析和免疫细胞浸润相关分析。结果 头颈鳞状细胞癌中ETV4的表达高于正常组织和癌旁组织(P<0.05)。ETV4表达水平与头颈鳞状细胞癌分期、分化程度、淋巴转移相关(P<0.05)。ETV4表达高低与总体生存期(OS)、疾病特异性生存期(DSS)及无进展间隔期(PFI)相关(P<0.05)。ETV4表达与NK CD56dim细胞、T细胞、细胞毒性细胞、Th17细胞、活化树突状细胞(aDC)及CD8^(+)T细胞等免疫细胞的浸润水平呈正相关(P<0.05),与NK CD56bright细胞亚群的浸润水平呈负相关(P<0.05)。敲低ETV4抑制喉癌细胞EMT进程。结论 ETV4与头颈鳞状细胞癌的发生、预后及免疫细胞浸润相关,且能够影响喉癌细胞的EMT过程,可作为评估头颈鳞状细胞癌患者预后的生物标记物及免疫治疗的可能靶点。 展开更多
关键词 etS变体转录因子4 头颈鳞状细胞癌 上皮-间充质转化
暂未订购
Fucoxanthin improves serum lipids,liver metabolism and gut microbiota in hyperlipidemia mice
4
作者 Yonghui Zhou Jingyi Zhang +4 位作者 Kun Xu Weihao Zhang Feng Chen Bin Liu Bingbing Guo 《Food Science and Human Wellness》 2025年第1期236-249,共14页
Fucoxanthin,a kind of exclusively algae-derived carotenoids,could reduce lipid content and regulate gut microbiota composition in obese mice,showing potential in preventing hyperlipidemia.This study aimed to illustrat... Fucoxanthin,a kind of exclusively algae-derived carotenoids,could reduce lipid content and regulate gut microbiota composition in obese mice,showing potential in preventing hyperlipidemia.This study aimed to illustrate fucoxanthin efficacy in modulating lipid metabolism in serum and liver of high-fat-induced hyperlipidemia mice,as well as investigate the underlying association with gut microbiota changes.Results showed that fucoxanthin significantly reduced body weight gain and body white fat of the mice.In the serum,total triglycerides(TG),total cholesterol(TC)contents were significantly decreased and high-densitylipoprotein cholesterol levels was significantly upregulated.Moreover,fucoxanthin remarkedly prevented lipid accumulation in the liver.Especially,metabolomics results showed that lipids and lipid-like molecules were significantly downregulated compared with the control,indicating the advance of hepatic lipid metabolism.Bile acids profile in the liver was also greatly changed by fucoxanthin.Meanwhile,fucoxanthin remodeled gut microbiota composition and promoted the relative abundance of Desulfovibrio,Blautia and Clostridia genera.Finally,correlation analysis revealed that these gut microbiota changes were closely related with hepatic metabolites/metabolism and serum lipids.Altogether,this study showed great potential of fucoxanthin in improving serum lipids profile,hepatic lipids and bile acids metabolism of hyperlipidemia mice,which was associated with gut microbiota alteration. 展开更多
关键词 FUCOXANTHIN LIPIDS hyperlipidemia Liver metabolism Gut microbiota
暂未订购
Exploring the mechanism of sea buckthorn polyphenols for the treatment of hyperlipidemia based on network pharmacology and molecular docking
5
作者 Yizhuo Geng Lei Zhou +3 位作者 Haimiao Chen Youdong Zhao Tingxu Yan Ying Jia 《Journal of Polyphenols》 2025年第1期8-19,共12页
The aim of this study was to explore the mechanism of action of sea buckthorn polyphenols in the treatment of hyperlipidemia through network pharmacology and molecular docking.The TCMSP pharmacology database was used ... The aim of this study was to explore the mechanism of action of sea buckthorn polyphenols in the treatment of hyperlipidemia through network pharmacology and molecular docking.The TCMSP pharmacology database was used to screen the polyphenols present in sea buckthorn,and then the SwissTargetPrediction and Uniprot databases were used to obtain the potential targets of sea buckthorn polyphenols,which were supplemented by the literature.In total,7 polyphenols and 154 potential targets were obtained.Through GeneCards,OMIM database,1358 hyperlipidemia-related targets were collected.We found that there were 101 targets at the intersection of components and diseases.Through GO and KEGG enrichment analysis,27 core targets were obtained,which were AKT1,TNF,TP53,IL-6,etc.in order of degree value.174 pathways were obtained from KEGG enrichment analysis,including AGE-RAGE signaling pathway in diabetic complications,fl uid shear stress and atherosclerosis,lipid and atherosclerosis,etc.The molecular docking of the main components to the targets was performed using OpenBabelGUI,AutoDockTools-1.5.6 software.Finally,the results were visualized using Cytoscape 3.9.1 software.The molecular docking results showed that sea buckthorn polyphenols have good binding ability with the key targets.Among them,such as quercetin and kaempferol,have good binding ability with TNF,TP53 and IL-6.For example,TNF binds to quercetin with a binding energy of-5.34 kcal/mol and to kaempferol with a binding energy of-6.22 kcal/mol;TP53 binds to kaempferol with a binding energy of-5.32 kcal/mol;IL-6 binds to quercetin with a binding energy of-5.62 kcal/mol,etc.Therefore,the network pharmacology study showed that the treatment of hyperlipidemia by sea buckthorn polyphenols can be realized by multi-component-multi-target-multi-pathway together,which provides some reference for the later study of sea buckthorn polyphenols in the treatment of hyperlipidemia. 展开更多
关键词 molecular docking network pharmacology sea buckthorn POLYPHENOL hyperlipidemia
暂未订购
The efficacy of ezetimibe on treating coronary heart disease complicated with hyperlipidemia and effects on lipid metabolism and atherosclerosis improvement
6
作者 ZHENG Yu-qi LUO Xiao-qin 《South China Journal of Cardiology》 2025年第3期137-144,154,共9页
Background In recent years,the incidence of coronary heart disease(CHD)has continued to rise,and its comorbidity with hyperlipidemia significantly increases the mortality risk in patients.Statin monotherapy faces limi... Background In recent years,the incidence of coronary heart disease(CHD)has continued to rise,and its comorbidity with hyperlipidemia significantly increases the mortality risk in patients.Statin monotherapy faces limitations in efficacy for some patients and raises potential safety concerns.Ezetimibe,as a novel lipid-modulating agent,exhibits potential advantages in the treatment of hyperlipidemia.Based on this,the present study investigated the therapeutic efficacy of ezetimibe in CHD patients with hyperlipidemia,as well as its effects on lipid metabolism and the amelioration of atherosclerosis.Methods In this study,150 clinical cases with CHD and hyperlipidemia admitted in our hospital from July 2022 to July 2024 were collected for retrospective analysis.According to different treatment methods,they were randomly divided into the Atorvastatin group(control group,n=75)and the Atorvastatin+Ezetimibe group(experimental group,n=75).Control group received atorvastatin monotherapy,while experimental group were administered additional ezetimibe as an adjunct to the atorvastatin-based treatment regimen.The clinical efficacy of the two treatment groups was analyzed,including cardiac function-related parameters such as the cardiac index(CI),cardiac output(CO),left ventricular ejection fraction(LVEF)and left ventricular end-diastolic diameter(LVEDD)before and after treatment.The observed indicators encompassed coronary angiography findings,the Gensini score for assessing coronary stenosis severity,the inflammatory marker high-sensitivity C-reactive protein(hs-CRP),and lipid profile parameters including total cholesterol(TC),triglycerides(TG),high-density lipoprotein cholesterol(HDL-C),and low-density lipoprotein cholesterol(LDL-C).Additionally,the occurrence of adverse reactions during treatment was monitored.Results After treatment,the total effective rate in experimental group was significantly higher than that in control group,with a statistically significant difference(P<0.05).In the comparison of the baseline data,both groups showed marked improvements in CI,CO,LVEF,and HDL-C.However,at the same time points,the experimental group demonstrated significantly better results in these parameters than control group(P<0.05).Additionally,LVEDD,LDL-C,hs-CRP and Gensini scores were significantly reduced after treatment in both groups compared to pretreatment levels.Moreover,at identical time points,the aforementioned parameters in the experimental group demonstrated significantly greater reductions compared to control group(P<0.05).Regarding safety assessment,comparative analysis of adverse drug reaction(ADR)incidence rates between the two treatment groups revealed no statistically significant difference(P>0.05).Conclusions In patients with CHD complicated by hyperlipidemia,ezetimibe demonstrates significant therapeutic advantages.It effectively enhances treatment efficacy,regulates lipid profiles,improves cardiac function,and mitigates the progression of atherosclerosis.This regimen exhibits a favorable safety profile and holds substantial clinical value for both therapeutic processes and rehabilitation outcomes in this patient population. 展开更多
关键词 EZetIMIBE Coronary heart disease complicated by hyperlipidemia Lipid metabolism ATHEROSCLEROSIS
原文传递
Mechanism of Pediococcus pentosaceus PP04 in alleviating high-fat diet caused hyperlipidemia via modulation of intestinal flora and it’s metabolites
7
作者 Yu Wang Xinyue Xing +6 位作者 Yamei He Yue Zhang Yuxuan Ma Bo Nan Xia Li Yuhua Wang Jingsheng Liu 《Food Science and Human Wellness》 2025年第7期2822-2834,共13页
The gut microbiota and it’s metabolism are vital targets of probiotics regulating high fat-diet(HFD)induced hyperlipidemia,which can relieve the pressure caused by the striking growth of sub-health people.Pediococcus... The gut microbiota and it’s metabolism are vital targets of probiotics regulating high fat-diet(HFD)induced hyperlipidemia,which can relieve the pressure caused by the striking growth of sub-health people.Pediococcus pentosaceus PP04(PP04)could colonize in intestine to regulate gut microbiota and it’s metabolites directly,the rebalanced intestinal flora mediated by PP04 could facilitate the secretion of short chain fatty acids to control body weight gain,PP04 intervention also changed bile acid(BA)profiles and enhanced the ileal concentrations of antagonists including tauro-α/β-muricholic acid sodium salt and ursodeoxycholic acid to inhibit intestinal farnesoid X receptor/fibroblast growth factor 15(FXR/FGF15)signaling coupled with the activation of hepatic FXR/small heterodimer partners signaling,which accelerated the hepatic BA de novo synthesis and excretion with feces to eliminate HFD caused hyperlipemia effectively.This study provided important evidence regarding PP04 as dietary supplement to relieve hyperlipidemia by influencing BA enterohepatic circulation. 展开更多
关键词 Pediococcus pentosaceus PP04 hyperlipidemia Intestinal flora Bile acid Short chain fatty acid
在线阅读 下载PDF
Genetic disorders leading to severe hyperlipidemia in children:A case report
8
作者 Chun-Xin Jiang Yu-Lin Meng +10 位作者 Dong Chen Lian-Ping Shi Guang Yang Yang Guo Bo Zhang Zi-Chen Zhai Zhi-Jian Wu Tie-Nan Liu Zhi-Jun Wang Xiao Tian Peng-Yu Su 《World Journal of Clinical Cases》 2025年第16期60-66,共7页
BACKGROUND Alagille syndrome is a rare autosomal dominant genetic disorder involving multiple organ systems.Its most common manifestations are chronic cholestasis caused by intrahepatic bile duct deficiency and severe... BACKGROUND Alagille syndrome is a rare autosomal dominant genetic disorder involving multiple organ systems.Its most common manifestations are chronic cholestasis caused by intrahepatic bile duct deficiency and severe hypercholesterolemia as a result of impaired cholesterol metabolism.This report describes a patient with Alagille syndrome in whom a JAG1 mutation was detected by whole-exome sequencing.CASE SUMMARY The patient presented with severe hypercholesterolemia,biliary and hepatic impairment,pruritus,and triangular facial features.Mutations in the JAG1 gene,which encodes the Notch signaling pathway,were detected by whole-exome sequencing,leading to a diagnosis of Alagille syndrome.The patient was treated using a combination of traditional Chinese and Western medicines.Her cholesterol levels,liver function,and pruritus subsequently improved.CONCLUSION The possibility of Alagille syndrome should be considered in children who present with abnormal liver function and severe hypercholesterolemia.Genetic testing is needed to screen for disease-causing mutations and the disease can be treated with Traditional Chinese medicine. 展开更多
关键词 hyperlipidemia Alagille syndrome Genetic mutation JAG1 CHOLESTASIS Low density lipoprotein cholesterol Traditional Chinese medicine Case report
暂未订购
二补助育汤改善高龄IVF-ET患者子宫内膜容受性的临床观察
9
作者 郑志博 刘雁峰 +4 位作者 李影 孔鑫靓 陈洁 丁彩飞 江雪娟 《辽宁中医杂志》 北大核心 2026年第1期67-70,共4页
目的观察二补助育汤对肾虚血瘀型高龄体外受精-胚胎移植(in vitro fertilization and embryo transfer,IVF-ET)患者子宫内膜容受性的影响。方法36例肾虚血瘀型高龄IVF-ET低子宫内膜容受性患者予二补助育汤连续服用1~3个疗程,比较患者治... 目的观察二补助育汤对肾虚血瘀型高龄体外受精-胚胎移植(in vitro fertilization and embryo transfer,IVF-ET)患者子宫内膜容受性的影响。方法36例肾虚血瘀型高龄IVF-ET低子宫内膜容受性患者予二补助育汤连续服用1~3个疗程,比较患者治疗前后的中医证候评分、黄体中期的超声学指标并随访患者的妊娠结局。结果与治疗前比较,患者治疗后中医证候评分显著降低(P<0.05),总有效率为80.56%(29/36);黄体中期子宫内膜厚度显著增加(P<0.05),A型、B型子宫内膜例数呈增多趋势,双侧子宫动脉搏动指数、阻力指数及右侧收缩期峰值/舒张期峰值均显著降低(P<0.05),Salle评分显著增加(P<0.05);治疗结束后,患者下一周期的胚胎种植率为38.71%(12/31),临床妊娠率为36.84%(7/19)。结论二补助育汤可显著改善高龄IVF-ET患者肾虚血瘀症状与体征,增加子宫内膜厚度、增加A型和B型内膜比例、增加子宫动脉和子宫内膜血流灌注,从而提高子宫内膜容受性,改善妊娠结局。 展开更多
关键词 二补助育汤 子宫内膜容受性 高龄 体外受精-胚胎移植 不孕症
原文传递
ETV4-Mediated PD-L1 Upregulation Promotes Immune Evasion and Predicts Poor Immunotherapy Response in Melanoma
10
作者 Tao Zhu Taofeng Wei +5 位作者 Mingdong Yang Junjun Xu Huifang Jiang Wei He Juyan Zheng Haibin Dai 《Oncology Research》 2026年第1期547-567,共21页
Background:Aberrant expression of transcription factors(TFs)is a key mechanism mediating tumor immune escape and therapeutic resistance.The involvement of E26 transformation-specific(ETS)family of TFs in immune regula... Background:Aberrant expression of transcription factors(TFs)is a key mechanism mediating tumor immune escape and therapeutic resistance.The involvement of E26 transformation-specific(ETS)family of TFs in immune regulation is not fully understood.The study aimed to elucidate the function of E-twenty-six variant 4(ETV4)in tumor immune evasion and its potential as a predictive biomarker for immunotherapy in melanoma.Methods:The expression patterns of ETS family TFs were analyzed in melanoma and hepatocellular carcinoma(HCC).Single-cell RNA sequencing(scRNA-seq)was used to dissect the cellular expression and function of ETV4 in the tumor microenvironment.Functional studies and murine models were employed to investigate the role of ETV4 in T cell-mediated tumor killing and tumor growth.The correlation between ETV4 expression level and patient responsiveness to programmed cell death protein 1(PD-1)blockade therapy was evaluated.Results:TFs in the ETS family were found to effectively stratify melanoma and HCC patients into prognostic subgroups.In melanoma,the polyoma enhancer activator 3(PEA3)subfamily,particularly ETV4 and ETV5,showed a negative correlation with immune infiltration.scRNA-seq analysis showed that ETV4 is preferentially expressed in melanoma cells and involves in mediating tumor-immunocyte interactions.Functional studies demonstrated that ETV4 impairs T cell-mediated tumor killing by transcriptionally upregulating programmed death-ligand 1(PD-L1).In immunocompetent murine models,ETV4 downregulation significantly suppressed tumor growth.Furthermore,high ETV4 expression correlated with poor responses to anti-PD-1 therapy.Conclusion:Our findings identify ETV4 as a key transcriptional regulator of immune evasion in melanoma by controlling PD-L1 expression.ETV4 may act as a predictive biomarker for immunotherapy outcomes. 展开更多
关键词 MELANOMA immune evasion etS transcription factors E-twenty-six variant 4 IMMUNOTHERAPY
暂未订购
A comparative study on the changes of components dissolution ratio with different compatibility ratio of Panacis Quinquefolii Radix and Notoginseng Radix et Rhizoma and their prevention of Qi deficiency and blood stasis syndrome
11
作者 Song Xue Xi Mao +3 位作者 Ding-Qiao Xu Rui-Jia Fu Ying Zhang Yu-Ping Tang 《Traditional Medicine Research》 2026年第1期1-18,共18页
Background:Panacis Quinquefolii Radix(PQR)is known for its ability to nourish“Qi”(it serves as the driving force for the functional activities of the body’s organs and meridians,promoting and regulating various phy... Background:Panacis Quinquefolii Radix(PQR)is known for its ability to nourish“Qi”(it serves as the driving force for the functional activities of the body’s organs and meridians,promoting and regulating various physiological functions)and“Yin”(it represents the material foundation of the human body.It plays a role in nourishing,moistening,and cooling the body).Notoginseng Radix et Rhizoma(NRR)is recognized for its properties of resolving blood stasis(it refers to a pathological condition characterized by impaired or stagnant blood circulation within the body).Changes in the compatibility ratio of these herbs often lead to variations in their chemical composition and efficacy.However,the specific alterations in chemical composition and efficacy resulting from compatibility adjustments remain unclear.We aimed to compare the material basis and their effects of different compatibility ratios of PQR and NRR on“Qi”deficiency and blood stasis syndrome(QBS).Methods:This study employed UPLC-Q/TOF-MS to identify effective compounds in the compatibility of PQR and NRR and utilized UPLC-TQ-MS/MS to analyze the dissolution of 16 saponins in PQR and NRR at 9 different ratios.A rat model of QBS was established,and the efficacy of PQR and NRR in treating this syndrome was assessed using hemorheology and coagulation analyses.Results:The study results show that PQR and NRR exhibit significant efficacy,effectively reducing blood viscosity induced by platelet aggregation and lowering inflammatory markers such as IL-6,IL-10,TXB2 and ET associated with vascular injury.Moreover,this combination regulates ATP and ADP levels,enhances energy metabolism,and promotes overall health.A total of 104 compounds in the compatibility of PQR and NRR were identified.The ratios of 1:2 and 1:3 showed the highest total saponin content,but the ratio of 1:1 demonstrated a superior pharmacological effect for the treatment of QBS.Conclusion:In summary,the compatibility of PQR and NRR not only shows the complex interactions between traditional Chinese medicinal materials,but also provides a new idea and method for the treatment of QBS. 展开更多
关键词 Panacis Quinquefolii Radix Notoginseng Radix et Rhizoma compatibility ratio UPLC-Q/TOF-MS UPLC-TQ-MS/MS Qi deficiency and blood stasis syndrome
暂未订购
基于斑马鱼模型对Betukladin降血脂活性与机制分析
12
作者 杜兴硕 展文 +6 位作者 高松英 孙长高 徐明贤 张思晨 李洪亮 夏青 何秋霞 《山东科学》 2026年第1期43-52,共10页
Betukladin(БЕТУКЛАДИН)是一种由驯鹿地衣粉末和白桦树皮提取物组成的膳食补充剂,具有调节血糖、降血脂、抗炎及抗凝血等多种药理活性。本研究探讨Betukladin的降血脂活性及作用机制,旨在验证其活性,并为开发安全、经济的天... Betukladin(БЕТУКЛАДИН)是一种由驯鹿地衣粉末和白桦树皮提取物组成的膳食补充剂,具有调节血糖、降血脂、抗炎及抗凝血等多种药理活性。本研究探讨Betukladin的降血脂活性及作用机制,旨在验证其活性,并为开发安全、经济的天然降脂药物提供科学依据。基于斑马鱼高脂模型,发现Betukladin可以显著改善斑马鱼高脂造模后的油红O染色IOD值、甘油三酯含量及总胆固醇含量升高的情况,表明了其具有降血脂的活性。通过网络药理学分析其可能通过脂质和动脉粥样硬化、PPAR信号通路等多通路协同发挥降脂的作用。RT-qPCR结果显示,其可以调控脂质代谢相关基因apoA1、LDLR和ANGPTL3,脂肪酸合成与氧化基因SREBF1、FASN、PPARα、cpt1a,胆固醇代谢基因CYP7A1、HMGCR、ABCG5、ABCG8。 展开更多
关键词 高脂血症 Betukladin 驯鹿地衣 白桦树皮 降血脂 斑马鱼模型
暂未订购
改进ET-BERT的加密流量分类模型
13
作者 万嘉彬 黎远松 +1 位作者 石睿 廖婉婷 《湖北民族大学学报(自然科学版)》 2026年第1期82-86,共5页
针对传统加密流量-基于变换器的双向编码器表示(encrypted traffic-bidirectional encoder representations from Transformer, ET-BERT)模型在加密流量分类任务中精度较低的问题,在复现原ET-BERT模型的基础上进行了结构优化与性能改进... 针对传统加密流量-基于变换器的双向编码器表示(encrypted traffic-bidirectional encoder representations from Transformer, ET-BERT)模型在加密流量分类任务中精度较低的问题,在复现原ET-BERT模型的基础上进行了结构优化与性能改进。首先,引入了学习率预热(learning rate warmup, Warmup)策略,以平滑模型训练过程并提升收敛稳定性。其次,设计了卷积神经网络-BERT(convolutional neural network-BERT,CNN-BERT)融合模块,在保留Transformer模型全局建模能力的同时,加强了局部特征提取能力。最后,加入了随机失活层以减少过拟合,提升模型泛化性能。实验在轻量化加密流量数据集上进行,结果表明,改进ET-BERT模型在F1分数(F1-score, F1)、准确率(accuracy, ACC)上较原ET-BERT模型分别提升4.70、4.36个百分点,实现了高精度的流量分类。研究表明,改进ET-BERT模型能有效提升ET-BERT模型的分类精度,为加密流量分类模型的优化提供了可靠的技术路径。 展开更多
关键词 et-BERT 加密流量分类 轻量化 CNN-BERT融合 随机失活层 Warmup策略
在线阅读 下载PDF
不孕女性患者红细胞叶酸水平与IVF-ET结局的相关性
14
作者 王晶 孙超 +4 位作者 王红娜 孟鹏 刘闯 张建芳 田国华 《山西医科大学学报》 2026年第1期105-109,共5页
目的探讨不孕女性患者红细胞叶酸水平对体外受精-胚胎移植(IVF-ET)结局的影响,及其在辅助生殖周期中对卵泡募集、卵子成熟、卵子受精与早期胚胎发育的潜在作用。方法本研究回顾性纳入2021年1—12月于空军军医大学西京医院妇产科生殖中心... 目的探讨不孕女性患者红细胞叶酸水平对体外受精-胚胎移植(IVF-ET)结局的影响,及其在辅助生殖周期中对卵泡募集、卵子成熟、卵子受精与早期胚胎发育的潜在作用。方法本研究回顾性纳入2021年1—12月于空军军医大学西京医院妇产科生殖中心行IVF-ET治疗的105例不孕女性患者,检测患者取卵前2天红细胞叶酸水平,并比较获卵数、成熟卵数、双原核(2PN)数、2PN卵裂胚胎数和可移植胚胎数,采用线性回归分析红细胞叶酸水平与IVF-ET结局指标的相关性,并按红细胞叶酸水平分成≥800 nmol/L组和<800 nmol/L组,采用独立样本t检验分析两组间IVF-ET各结局指标差异,进一步分析红细胞叶酸水平与IVF-ET各结局指标之间的效应关系。结果线性回归分析显示,红细胞叶酸水平与获卵数、成熟卵数(MⅡ)数及可移植胚胎数无显著相关性(P>0.05),但与2PN数和2PN卵裂胚胎数呈边缘负相关(P接近0.05)。进一步分组后结果显示红细胞叶酸≥800 nmol/L组2PN数、2PN卵裂胚胎数及可移植胚胎数显著低于<800 nmol/L组(P<0.05)。结论体内红细胞叶酸累积到一定的阈值时,可能对卵子受精及胚胎早期发育产生不利影响,故辅助生殖人群叶酸补充应结合个体水平和代谢状态进行个体化干预。 展开更多
关键词 红细胞叶酸水平 体外受精-胚胎移植结局 卵泡募集 卵子成熟 卵子受精 早期胚胎发育 叶酸补充 不孕女性
暂未订购
托莱西单抗治疗高脂血症有效性和安全性的Meta分析 被引量:1
15
作者 孙晓东 赵翊如 +6 位作者 胡扬 夏亮 石秀锦 彭文星 方振威 王歆 林阳 《中国药学杂志》 北大核心 2025年第21期2312-2319,共8页
目的系统评价托莱西单抗治疗高脂血症的有效性和安全性。方法计算机检索PubMed、Embase、Web of Science、Cochrane Library、中国知网、万方、维普等数据库,检索时限为建库至2025年2月,对符合纳入标准的托莱西单抗治疗高脂血症的随机... 目的系统评价托莱西单抗治疗高脂血症的有效性和安全性。方法计算机检索PubMed、Embase、Web of Science、Cochrane Library、中国知网、万方、维普等数据库,检索时限为建库至2025年2月,对符合纳入标准的托莱西单抗治疗高脂血症的随机对照研究,采用Rev Man 5.4软件进行Meta分析。结果纳入文献3篇,共计1061例患者。有效性分析结果显示:每4周给予450 mg托莱西单抗治疗与安慰剂相比显著降低低密度脂蛋白胆固醇(LDL-C)水平(MD=-63.76%,95%置性区间(CI)为-67.17%~-60.53%,P<0.00001),以及同时能够显著性地改善其他相关指标,差异具有统计学意义。安全性结果显示:托莱西单抗治疗高脂血症的安全性相关主要终点和次要终点与安慰剂组均无显著性差异(P>0.05)。结论托莱西单抗对中国成人高脂血症患者具有良好的有效性和安全性。 展开更多
关键词 托莱西单抗 高脂血症 有效性 安全性 MetA分析
原文传递
血清IL-6、ET-1及sCD206对儿童重症支原体肺炎治疗疗效的预测作用 被引量:2
16
作者 董倩 李娜 +2 位作者 于光志 陈娟 杨琳 《分子诊断与治疗杂志》 2025年第2期322-325,共4页
目的探讨血清白介素-6(IL-6)、内皮素-1(ET-1)及可溶性甘露糖受体(sCD206)对儿童重症支原体肺炎(SMPP)治疗疗效的预测作用。方法选取2023年1月-2023年12月济宁医学院附属医院儿科收治的SMPP患儿200例为研究对象。比较SMPP患儿治疗前、... 目的探讨血清白介素-6(IL-6)、内皮素-1(ET-1)及可溶性甘露糖受体(sCD206)对儿童重症支原体肺炎(SMPP)治疗疗效的预测作用。方法选取2023年1月-2023年12月济宁医学院附属医院儿科收治的SMPP患儿200例为研究对象。比较SMPP患儿治疗前、治疗后IL-6、ET-1、sCD206水平;统计所有患儿治疗结果;分析影响SMPP患儿治疗疗效的单因素及多因素;计算IL-6、ET-1、sCD206单独及联合对SMPP患儿治疗疗效的预测价值。结果SMPP患儿治疗后的血清IL-6、ET-1、sCD206水平均低于治疗前,差异有统计学意义(P<0.05)。200例SMPP患儿经治疗后,治疗显效41例(20.50%),治疗有效139例(69.50%),治疗无效20例(10.00%)。将治疗显效与有效纳为有效组(n=180),将治疗无效纳入为无效组(n=20)。治疗有效组与无效组性别、年龄、CPIS分级等一般资料比较,差异无统计学意义(P>0.05);有效组血清IL-6、ET-1、sCD206水平低于无效组,差异有统计学意义(P<0.05)。经二元Logistic回归分析结果显示:IL-6、ET-1、sCD206水平升高均是影响SMPP患儿治疗疗效的危险因素(P<0.05)。IL-6、ET-1、sCD206联合预测SMPP患儿治疗疗效的AUC为0.916,敏感度、特异度分别为95.00%、94.11%,高于三指标单独检测(P<0.05)。结论IL-6、ET-1、sCD206对SMPP患儿经大环内酯类药物治疗的临床疗效具有重要的参考价值,可为制定临床治疗方案提供一定依据。 展开更多
关键词 IL-6 et-1 sCD206 重症支原体肺炎
暂未订购
Petroleum ether sub-fraction of rosemary extract improves hyperlipidemia and insulin resistance by inhibiting SREBPs 被引量:4
17
作者 XIE Zhi-Shen ZHONG Ling-Jun +4 位作者 WAN Xiao-Meng LI Meng-Ning YANG Hua LI Ping XU Xiao-Jun 《Chinese Journal of Natural Medicines》 SCIE CAS CSCD 2016年第10期746-756,共11页
As a culinary and medicinal herb, rosemary is widely used. The present work aimed to investigate the effects of rosemary extracts on metabolic diseases and the underlying mechanisms of action. Liver cells stably expre... As a culinary and medicinal herb, rosemary is widely used. The present work aimed to investigate the effects of rosemary extracts on metabolic diseases and the underlying mechanisms of action. Liver cells stably expressing SREBP reporter were used to evaluate the inhibitory effects of different fractions of rosemary extracts on SREBP activity. The obese mice induced by Western-type diet were orally administered with rosemary extracts or vehicle for 7 weeks, the plasma and tissue lipids were analyzed. SREBPs and their target genes were measured by quantitative RT-PCR. We demonstrated that the petroleum ether sub-fraction of rosemary extracts(PER) exhibited the best activity in regulating lipid metabolism by inhibiting SREBPs, while water and n-Bu OH sub-fraction showed the SREBPs agonist-effect. After PER treatment, there was a significant reduction of total SREBPs in liver cells. PER not only decreased SREBPs nuclear abundance, but also inhibited their activity, resulting in decreased expression of SREBP-1c and SREBP-2 target genes in vitro and in vivo. Inhibiting SREBPs by PER decreased the total triglycerides and cholesterol contents of the liver cells. In the mice fed with Western-type diet, PER treatment decreased TG, TC, ALT, glucose, and insulin in blood, and improved glucose tolerance and insulin sensitivity. Furthermore, PER treatment also decreased lipid contents in liver, brown adipose tissue, and white adipose tissue. Our results from the present study suggested that petroleum ether fraction of rosemary extracts exhibited the best potential of improving lipid metabolism by inhibiting SREBPs activity. 展开更多
关键词 ROSEMARY SREBPs hyperlipidemia Insulin resistance
原文传递
Effects of Xuezhikang Capsule(血脂康胶囊) on Blood Lipids,Platelet Activation and Coagulation-Fibrinolysis Activity in Patients with Hyperlipidemia 被引量:3
18
作者 刘志高 余细勇 《Chinese Journal of Integrated Traditional and Western Medicine》 2004年第4期259-262,共4页
Objective: To investigate the effects of Xuezhikang capsule (XZK,血脂康胶囊) on blood lipids level, platelet activation and coagulation-fibrinolysis activity in patients with hyerlipidemia. Methods: Seventy-six patien... Objective: To investigate the effects of Xuezhikang capsule (XZK,血脂康胶囊) on blood lipids level, platelet activation and coagulation-fibrinolysis activity in patients with hyerlipidemia. Methods: Seventy-six patients of hyperlipidemia were randomly divided into two groups, the XZK group (n=38) treated with XZK 600mg, taken two times per day and the Simvastatin (SIM) group (n = 38) treated with SIM 20mg per day, with the treatment lasting 8 weeks for both groups. Levels of fasting serum lipids, including total cholesterol (TC), triglyceride (TG), high and low density lipoprotein cholesterol (HDL-C and LDL-C), plasma GMP-140, fibrinogen (FIB), tissue plasminogen activator (t-PA), plasminogen activator inhibitor type-1 (PAI-) and prothrombin time (PT) were all measured before and 8 weeks after treatment. Data were compared before and after treatment and also compared with those measured in 20 healthy subjects of control. Results: Before treantment the levels of TC, TG and LDL-C were obviously higher and HDL-C level was significantly lower in hyperlipidemia patients than those in healthy subjects (P<0.05 or P<0.01). After 4-8 weeks of XZK treatment, the levels of TC, TG, LDL-C and FIB and activities of GMP-140 and PAI-1 were obviously lowered (P<0. 05 or P<0. 01). But in the SIM group there was no obvious change in FIB (P>0.05), instead it showed obvious increase of HDL-C and decrease of TC and LDL-C after treatment (P<0.05 or P<0.01). Conclusion: XZK could inhibit platelet activity and improve coagulation-fibrinolysis function, besides its lipids lowering effect. 展开更多
关键词 Xuezhikang capsule SIMVASTATIN hyperlipidemia platelet α-granule membrane glycopro-tein hyperlipidemia coagulation-fibrinolysis
暂未订购
基于IVF-ET助孕周期前夫妻双方临床特征预测妊娠结局的Logistic回归模型研究
19
作者 温晓晓 翟亚楠 +4 位作者 杨杰 许思娟 胡颋 汪辉 倪亚莉 《生殖医学杂志》 2025年第2期206-212,共7页
目的基于IVF-ET助孕患者进入周期前的临床特征,建立预测妊娠结局的Logistic回归模型。方法分析812对不孕不育夫妇的临床数据,采用Lasso回归筛选影响妊娠结局的自变量。选择纳入模型的变量包括不孕类型、周期次数、窦卵泡数、抗苗勒管激... 目的基于IVF-ET助孕患者进入周期前的临床特征,建立预测妊娠结局的Logistic回归模型。方法分析812对不孕不育夫妇的临床数据,采用Lasso回归筛选影响妊娠结局的自变量。选择纳入模型的变量包括不孕类型、周期次数、窦卵泡数、抗苗勒管激素(AMH)水平、女方体质量指数(BMI)、不孕年限、女性年龄、梗阻性无精子症、严重少弱精子症、子宫内膜炎、精索静脉曲张、基础FSH(bFSH)水平、输卵管积水、男性年龄等。样本随机分为训练集(85%)和测试集(15%)。模型训练采用五折交叉验证,每折从训练集中抽取138对样本作为验证集。采用Logistic回归方法进行分类,以预测妊娠结局;采用受试者工作特征(ROC)曲线评估模型的预测效能,临床决策曲线分析(DCA)评估模型的临床实用价值。结果样本总数812对,妊娠失败282对,妊娠成功530对。在验证集中,模型预测的曲线下面积(AUC)为0.587[95%CI(0.486,0.688)]。最终模型在测试集中表现出AUC为0.726[95%CI(0.627,0.826)],准确度达0.730。DCA结果显示,当阈值概率为50%~100%时,列线图模型可获得较高的净获益值。结论基于Logistic回归的IVF-ET妊娠结局预测模型表现出中等的预测效能,具备一定的临床应用潜力。 展开更多
关键词 体外受精-胚胎移植 妊娠结局 预测模型
暂未订购
Effect of Taizhi'an Capsule (泰脂安胶囊) Combined with Simvastatin on Hyperlipidemia in Diabetic Patients 被引量:3
20
作者 高峰 胡秀芬 《Chinese Journal of Integrated Traditional and Western Medicine》 2006年第1期24-28,共5页
To evaluate the effectiveness and safety of Taizhi'an (泰脂安, TZA) capsule combined with Simvastatin (Sim) in treating hyperlipidemia in diabetes mellitus (DM) patients. Methods: Eighty cases of type 2 DM pat... To evaluate the effectiveness and safety of Taizhi'an (泰脂安, TZA) capsule combined with Simvastatin (Sim) in treating hyperlipidemia in diabetes mellitus (DM) patients. Methods: Eighty cases of type 2 DM patients with hyperlipidemia were randomized into two groups, 40 in each group. The patients in the treated group took orally TZA capsules at the dose of 0.9 g 3 times a day and Sim 10 mg at bedtime. And the patients in the control group were treated with Sim 20 mg alone at bedtime. Both regimens lasted for 12 weeks. Before and after the study the changes of blood lipid levels and adverse reaction were investigated. Results. The serum levels of total cholesterol (TO), triglycerides (TG) and low density lipoprotein-cholesterol (LDL-C) were decreased respectively by 28.8%, 18.2% and 26.3% in the treated group; and by 29.4%, 19.4% and 24.6% in the control group. On the contrary, high density lipoprotein-cholesterol (HDL-C) was increased by 23.5% in the treated group and by 29.4% in the control group. All these changes were statistically significant before and after treatment (all P〈0.05), but they did not differ statistically between the two groups (P〉0.05). There was no significant changes in hemoglobin A1 c (HbA1c). Patients in the treated group did not develop any adverse reactions. However, ALT was found to be higher above the normal range in 5% of the patients in the control group. Conclusion: In treating hyperlipidemia in DM patients, combination of TZA with Sim 10 mg taken daily achieved satisfactory efficacy which was similar to Sim 20 mg daily alone. But the combination therapy conducted in the treated group proved to be better in safety, and could overcome adverse reactions resulting from Sim that was seen in the control group. 展开更多
关键词 diabetes mellitus hyperlipidemia Taizhi'an capsule SIMVASTATIN
暂未订购
上一页 1 2 250 下一页 到第
使用帮助 返回顶部