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Optimization of performance of the KM2A full array using the Crab Nebula

Chinese Physics C 2024年第6期48卷 169-178页

作者：曹臻 F.Aharonian 安琪阿西克古白云翔包逸炜 D.Bastieri 毕效军毕玉江蔡金庭曹晴曹文羽曹喆常进常劲帆陈尚明陈恩生陈亮陈林陈龙陈明君陈玛丽陈起辉陈素弘陈天禄陈阳程宁程耀东崔明阳崔树旺崔晓红崔昱东戴本忠代洪亮戴子高单增罗布 D.della Volpe 董绪强段凯凯樊军辉范一中方军方堃冯存峰封莉冯少辉丰晓婷冯有亮 S.Gabici 高博高川东高林青高启高卫高伟康葛茂茂耿利斯 G.Giacinti 龚光华苟全补顾旻皓郭福来郭晓磊郭义庆郭莹莹韩毅昂何会海贺昊宁何佳银何新波何钰 M.Heller 贺远强侯博文侯超侯贤胡红波胡铨胡世聪黄代绘黄天奇黄文俊黄性涛黄晓渊黄勇黄志成季筱璐贾焕玉贾康江琨姜晓巍姜泽军金敏康明铭柯通 D.Kuleshov.K.Kurinov 李兵兵李澄李骢李丹李飞李海波李会财李华阳李军李剑李捷李凯李文龙李文莲李秀荣李昕李一卓李哲黎卓梁恩维梁云峰林苏杰刘冰刘成刘栋刘虎刘海东刘佳刘江来刘金艳刘茂元柳若愚刘四明刘伟刘怡刘以农鲁睿罗晴吕洪魁马伯强马玲玲马欣华毛基荣闵振 W.Mitthumsiri 穆慧君南云程 A.Neronov 区子维庞彬宇 P.Pattarakijwanich 裴致远齐孟尧祁业情乔冰强秦家军 D.Ruffolo A.Sáiz D.Semikoz 邵澄宇邵琅 O.Shchegolev 盛祥东舒富文宋慧超 Yu.V.Stenkin V.Stepanov 苏扬孙秦宁孙晓娜孙志斌谭柏轩唐庆文唐泽波田文武王超王昌贝王广威王洪光王惠惠王建成汪凯王利苹王玲玉王培汉王冉王为王祥高王祥玉王阳王玉东王岩谨王忠海王仲翔王振王铮韦大明魏俊杰魏永健文韬吴超勇吴含荣武莎吴雪峰吴雨生席邵强夏捷夏君集项光漫肖迪泫肖刚辛广广辛玉良邢祎熊峥徐东莲徐仁峰徐仁新徐伟立薛良闫大海颜景志颜田杨朝文杨帆杨冯帆杨何文杨佳盈杨莉莉杨明洁杨睿智杨深邦姚玉华姚志国叶一锰尹丽巧尹娜游晓浩游智勇于艳红袁强岳华曾厚敦曾婷轩曾玮查敏张彬彬张丰张海明张恒英张建立张丽霞张力张鹏飞张佩佩张瑞张少博张少如张寿山张潇张笑鹏张云峰张毅张勇赵兵赵静赵雷赵立志赵世平郑福周斌周浩周佳能周猛周平周荣周勋秀祝成光祝凤荣朱辉朱科军左雄 LHAASO Collaboration Key Laboratory of Particle Astrophyics&Experimental Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China Tianfu Cosmic Ray Research Center Chengdu 610000China Dublin Institute for Advanced Studies 31 Fitzwilliam Place2 DublinIreland Max-Planck-Institut for Nuclear Physics P.O.Box 10398069029 HeidelbergGermany State Key Laboratory of Particle Detection and Electronics China University of Science and Technology of China Hefei 230026China School of Physical Science and Technology&School of Information Science and Technology Southwest Jiaotong UniversityChengdu 610031China School of Astronomy and Space Science Nanjing UniversityNanjing 210023China Center for Astrophysics Guangzhou UniversityGuangzhou 510006China Hebei Normal University Shijiazhuang 050024China Key Laboratory of Dark Matter and Space Astronomy&Key Laboratory of Radio Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China Tsung-Dao Lee Institute&School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China Key Laboratory for Research in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Key Laboratory of Cosmic Rays(Tibet University) Ministry of EducationLhasa 850000TibetChina National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China School of Physics and Astronomy(Zhuhai)&School of Physics(Guangzhou)&Sino-French Institute of Nuclear Engineering and Technology(Zhuhai) Sun Yat-sen UniversityZhuhai 519000&Guangzhou 510275China School of Physics and Astronomy Yunnan UniversityKunming 650091China Département de Physique Nucléaire et Corpusculaire Facultéde SciencesUniversitéde Genève24 Quai Ernest Ansermet1211 GenevaSwitzerland Institute of Frontier and Interdisciplinary Science Shandong UniversityQingdao 266237China APC Universit'e Paris Cit'eCNRS/IN2P3CEA/IRFUObservat

The full array of the Large High Altitude Air Shower Observatory(LHAASO)has been in operation since july *** its kilometer-square array(KM2A),we optimized the selection criteria for very high and ultrahigh energyγ-rays using data collected from August 2021 to August 2022,resulting in an improvement in significance of the detection in the Crab Nebula of approximately 15%,compared with that of previous *** the implementation of these new selection criteria,the angular resolution was also significantly improved by approximately 10%at tens of *** aspects of the full KM2A array performance,such as the pointing error,were also calibrated using the Crab *** resulting energy spectrum of the Crab Nebula in the energy range of 10-1000 TeV are well fitted by a log-parabola model,which is consistent with the previous results from LHAASO and other experiments.

关键词： γ-ray Crab Nebula significance

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数字型太赫兹带通滤波器的逆向设计及优化

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物理学报 2024年第6期73卷 151-158页

作者：居学尉张林烽黄峰朱国锋李淑锦陈燕青王嘉勋钟舜聪陈盈王向峰福州大学机械工程及自动化学院福建省太赫兹功能器件与智能传感重点实验室福州350108 CAD/CAM福建省高校工程研究中心(莆田学院) 莆田351100 智能配电网装备福建省高校工程研究中心福州350108 福州大学物理与信息工程学院福州350108

针对高性能太赫兹功能器件的规范化设计需求,本文将智能逆向设计方法应用于太赫兹带通滤波器的设计与优化中.建立与数字空间映射的亚波长超表面等效模型,从设定器件的目标功能和约束条件出发,利用智能算法探索整个解空间中的全部可能结... 详细信息

针对高性能太赫兹功能器件的规范化设计需求,本文将智能逆向设计方法应用于太赫兹带通滤波器的设计与优化中.建立与数字空间映射的亚波长超表面等效模型,从设定器件的目标功能和约束条件出发,利用智能算法探索整个解空间中的全部可能结构,迭代寻优至最优结构图案.本文利用搭建的逆向设计框架设计了中心频率为0.51 THz、带宽为41.5 GHz、插入损耗为–0.1071 dB的太赫兹带通滤波器.与传统的人工正向设计相比,逆向设计方法可解构出窄带、低插入损耗、带外抑制强、极化稳定性强的带通滤波器.

关键词：逆向设计太赫兹超表面数字编码映射建模

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采动地表与输电线塔大板基础协同变形规律研究

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采矿与安全工程学报 2024年第3期41卷 472-480页

作者：赵兵朝赵阳冯杰王京滨冯欣怡西安科技大学能源学院陕西西安710054 西安科技大学西部矿井开采及灾害防治教育部重点实验室陕西西安710054

为保障矿区输电线塔在采动影响下安全运行,通过理论分析和数值模拟探究采动地表与输电线塔大板基础协同变形规律。以某工作面上覆输电线塔大板基础为研究对象,基于基础的破坏形式,建立了大板基础力学模型,结合概率积分法推导得出地表与... 详细信息

为保障矿区输电线塔在采动影响下安全运行,通过理论分析和数值模拟探究采动地表与输电线塔大板基础协同变形规律。以某工作面上覆输电线塔大板基础为研究对象,基于基础的破坏形式,建立了大板基础力学模型,结合概率积分法推导得出地表与拉伸区、压缩区及中性区基础的协同变形关系式。理论分析表明:采动基础变形的关键参数有基础弹性模量(E_(j))、土体泊松比(μ)、基础根开(b_(t))、土体弹性模量(E)、电塔自重(P)和基础截面惯性矩(I_(y));基础水平变形ε_(j)与E_(j)和μ呈负相关,与地表水平变形ε、b_(t)和E呈正相关;基础倾斜变形i_(j)与地表倾斜变形i、P和b_(t)呈正相关,与E_(j)和I_(y)呈负相关。数值模拟表明:拉伸区基础水平变形>压缩区基础水平变形>中性区基础水平变形。

关键词：采动地表变形输电线塔大板基础概率积分协同变形

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Cinnamaldehyde targets SarA to enhance β-lactam antibiotic activity against methicillin-resistant Staphylococcus aureus

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mLife 2024年第2期3卷 291-306页

作者： jianguo Li Tingyin Lu Yuefei Chu Yuejun Zhang jing Zhang Wenzhen Fu jian Sun Yahong Liu xiao-Ping Liao Yu-feng Zhou State Key Laboratory for Animal Disease Control and Prevention South China Agricultural UniversityGuangzhouChina Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation South China Agricultural UniversityGuangzhouChina Yantai Fushan Center for Animal Disease Control and Prevention YantaiChina

Methicillin-resistant Staphylococcus aureus(MRSA)is a current global public health problem due to its increasing resistance to the most recent antibiotic *** critical approach is to develop ways to revitalize existing ***,we show that the phytogenic compound cinnamaldehyde(CIN)and β-lactam antibiotic combinations can functionally synergize and resensitize clinical MRSA isolates to β-lactam therapy and inhibit MRSA biofilm *** studies indicated that the CIN potentiation effect on β-lactams was primarily the result of inhibition of the mecA expression by targeting the staphylococcal accessory regulator *** alone or in combination with β-lactams decreased sarA gene expression and increased SarA protein phosphorylation that impaired SarA binding to the mecA promoter element and downregulated virulence genes such as those encoding biofilm,α-hemolysin,and *** of SarA-mecA binding thus interfered with PBP2a biosynthesis and this decreased MRSA resistance to β-***,CIN fully restored the anti-MRSA activities of β-lactam antibiotics in vivo in murine models of bacteremia and biofilm ***,our results indicated that CIN acts as a β-lactam adjuvant and can be applied as an alternative therapy to combat multidrug-resistant MRSA infections.

关键词： cinnamaldehyde MRSA SarA β-lactamresistance

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去泛素化酶在肾细胞癌中的作用

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生物化学与生物物理进展 2024年第2期51卷 276-299页

作者：罗霞金晓锋宁波大学医学部生物化学与分子生物学系浙江省病理生理学技术研究重点实验室宁波315211

肾细胞癌(renal cell carcinoma,RCC)是成人肾脏的原发性恶性肿瘤。泛素-蛋白酶体系统(ubiquitinproteasome system,UPS)对控制蛋白质水平和调节生理病理过程至关重要。去泛素化酶(deubiquitinases,DUBs)是UPS的关键成分,特别是从靶蛋... 详细信息

肾细胞癌(renal cell carcinoma,RCC)是成人肾脏的原发性恶性肿瘤。泛素-蛋白酶体系统(ubiquitinproteasome system,UPS)对控制蛋白质水平和调节生理病理过程至关重要。去泛素化酶(deubiquitinases,DUBs)是UPS的关键成分,特别是从靶蛋白中去除泛素链,通过严格调节正常生理学中泛素化和去泛素化之间的平衡,对蛋白质稳态和质量控制显示出至关重要的作用。越来越多的研究表明,功能异常的DUBs与RCC的进展和转移有关。根据底物的不同,一些DUB可能会抑制RCC,而另一些则促进。本文综述了RCC相关DUB的最新研究进展,描述了其分类、功能作用,总结了DUB在RCC中的作用和作用机制,并讨论了靶向DUBs用于癌症治疗。

关键词：肾细胞癌泛素-蛋白酶体系统去泛素化酶

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Protective mechanism of Paeoniae Radix Alba against chemical liver injury based on network pharmacology,molecular docking,and in vitro experiments

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journal of Traditional Chinese Medical Sciences 2024年第1期11卷 55-66页

作者： Shuangqiao Liu xin Liu Sijia jiang Min Fu jinxi Hu jiaqi Liu xiaoxu Fan Yingtong feng Shujing Zhang jingxia Wang School of Traditional Chinese Medicine Beijing University of Chinese MedicineBeijing 102488China School of Traditional Chinese Medicine Xinjiang Medical UniversityUrumqi 830017China The Centre for Translational Biology Research Institute of McGill University Health CentreMontr eal H4A 3J1Canada

Objective:To explore and validate the potential targets of Paeoniae Radix Alba(***,Bai Shao)in protecting against chemical liver injury through network pharmacology,molecular docking technology,and in vitro cell ***:Network pharmacology was used to identify the common potential targets of *** and chemical liver *** docking was used to fit the components,which were subsequently verified in vitro.A cell model of hepatic fibrosis was established by activating hepatic stellate cell(HSC)-Lx2 cells with 10 ng/mL transforming growth factor-β*** cells were exposed to different concentrations of total glucosides of paeony(TGP),the active substance of ***,and then evaluated using the cell counting kit-8 assay,enzyme-linked immunosorbent assay,and western ***:Analysis through network pharmacology revealed 13 key compounds of ***,and the potential targets for preventing chemical liver injury were IL-6,AKT serine/threonine kinase 1,jun protooncogene,heat shock protein 90 alpha family class A member 1(HSP90AA1),peroxisome proliferator activated receptor gamma(PPARG),PTGS2,and *** Ontology(GO)enrichment analysis indicated the involvement of response to drugs,membrane rafts,and peptide *** Encyclopedia of Genes and Genomes(KEGG)enrichment analysis revealed that the main pathways involved lipid and atherosclerosis and chemical carcinogenesis-receptor *** and albiflorin exhibited strong affinity for HSP90AA1,PTGS2,PPARG,and *** concentrations of TGP can inhibit the expression of COL-I,COL-III,IL-6,TNF-a,IL-1β,HSP-90a,and PTGS2 while increasing the expression of PPAR-γand CASP3 in activated HSC-Lx2 ***:*** primarily can regulate targets such as HSP90AA1,PTGS2,PPARG,***,the main active compound of ***,protects against chemical liver injury by reducing the inflammatory response,activating apoptotic proteins,and promoting the apoptosis of activated HSCs.

关键词： Paeoniae Radix Alba Total glycosides of paeony Chemical liver injury Liver fibrosis Network pharmacology Hepatic stellate cells

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Coulomb-assisted nonlocal electron transport between two pairs of Majorana bound states in a superconducting island

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Chinese Physics B 2024年第5期33卷 275-279页

作者：王浩迪任俊潼吕海峰柯莎莎 School of Physics University of Electronic Science and Technology of ChinaChengdu 610054China

We investigate the nonlocal transport modulated by Coulomb interactions in devices comprising two interacting Majorana wires,where both nanowires are in proximity to a mesoscopic superconducting(SC)*** Majorana bound state(MBS)is coupled to one lead via a quantum dot with resonant *** this device,the nonlocal correlations can be induced in the absence of Majorana energy *** find that the negative differential conductance and giant current noise cross correlation could be induced,due to the interplay between nonlocality of MBSs and dynamical Coulomb blockade *** feature may provide a signature for the existence of the MBSs.

关键词： Majorana bound states superconducting island current cross correlation

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GRK2 mediated degradation of SAV1 initiates hyperplasia of fibroblast-like synoviocytes in rheumatoid arthritis

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Acta Pharmaceutica Sinica B 2024年第3期14卷 1222-1240页

作者： Paipai Guo ji jiang Rui Chu feng He Mingli Ge Ruhong Fang Qiuyun Guan Huijuan Cheng Chunru jiang Tiantian Su Zhenduo Zhu Hao Liu Wei Wei Shihao Zhang Qingtong Wang Institute of Clinical Pharmacology Anhui Medical UniversityKey Laboratory of Anti-inflammatory and Immune MedicineMinistry of EducationCollaborative Innovation Center of Anti-inflammatory and Immune MedicinesHefei 230032China School of Pharmacy Bengbu Medical CollegeBengbu 233030China The Third Affiliated Hospital of Anhui Medical University(the First People’s Hospital of Hefei) Hefei 230061China

Hyperplasia and migration of fibroblast-like synoviocytes(FLSs)are the key drivers in the pathogenesis of rheumatoid arthritis(RA)and joint *** Yes-associated protein(YAP),which is a powerful transcription co-activator for proliferative genes,was observed in the nucleus of inflammatory FLSs with unknown upstream *** Gene Expression Omnibus database analysis,it was found that Salvador homolog-1(SAV1),the pivotal negative regulator of the Hippo-YAP pathway,was slightly downregulated in RA ***,SAV1 protein expression is extremely ***,it was revealed that SAV1 is phosphorylated,ubiquitinated,and degraded by interacting with an important serine-threonine kinase,G protein-coupled receptor(GPCR)kinase 2(GRK2),which was predominately upregulated by GPCR activation induced by ligands such as prostaglandin E2(PGE2)in *** process further contributes to the decreased phosphorylation,nuclear translocation,and transcriptional potency of YAP,and leads to aberrant FLSs *** depletion of GRK2 or inhibition of GRK2 by paroxetine rescued SAV1 expression and restored YAP phosphorylation and finally inhibited RA FLSs proliferation and ***,paroxetine treatment effectively reduced the abnormal proliferation of FLSs in a rat model of collagen-induced arthritis which was accompanied by a significant improvement in clinical ***,these results elucidate the significance of GRK2 regulation of Hippo-YAP signaling in FLSs proliferation and migration and the potential application of GRK2 inhibition in the treatment of FLSs-driven joint destruction in RA.

关键词： Rheumatoid arthritis Fibroblast-like synoviocytes G protein-coupled receptor kinase 2 Salvador homolog-1 Yes-associated protein

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DNA Methylation Variation Is Identified in Monozygotic Twins Discordant for Congenital Heart Diseases

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Congenital Heart Disease 2024年第2期19卷 247-256页

作者： Shuliang xia Huikang Tao Shixin Su xinxin Chen Li Ma jianru Li Bei Gao xumei Liu Lei Pi jinqing feng fengxiang Li jia Li Zhiwei Zhang Guangdong Provincial People’s Hospital Southern Medical UniversityGuangzhou510100China Department of Cardiovascular Surgery Guangzhou Women and Children’s Medical CenterGuangzhou Medical UniversityGuangdong Provincial Clinical Research Center for Child HealthGuangzhou510623China Department of Pediatric Cardiology Guangdong Cardiovascular InstituteGuangdong Provincial Key Laboratory of South China Structural Heart DiseaseGuangzhou510100China Clinical Physiology Laboratory Institute of PediatricsGuangzhou Women and Children’s Medical CenterGuangzhou Medical UniversityGuangdong Provincial Key Laboratory of Research in Structural Birth Defect DiseaseGuangzhou510623China Department of Echocardiogram Guangzhou Women and Children’s Medical CenterGuangzhou Medical UniversityGuangdong Provincial Clinical Research Center for Child HealthGuangzhou510623China Department of Pediatrics Washington University School of MedicineSt.LouisMO63130USA Clinical Biological Resource Bank of Guangzhou Women and Children’s Medical Center Guangzhou Medical UniversityGuangzhou510623China

Aims:Multiple genes and environmental factors are known to be involved in congenital heart disease(CHD),but epigenetic variation has received little ***(MZ)twins with CHD provide a unique model for exploring this *** order to investigate the potential role of Deoxyribonucleic Acid(DNA)methyla-tion in CHD pathogenesis,the present study examined DNA methylation variation in MZ twins discordant for CHD,especially ventricular septal defect(VSD).Methods and Results:Using genome-wide DNA methylation profiles,we identified 4004 differentially methylated regions(DMRs)in 18 MZ twin pairs discordant for CHD,and 2826 genes were *** Ontology(GO)and Kyoto Encyclopedia of Genes and Genomes(KEGG)analysis revealed a list of CHD-associated *** further investigate the role of DNA methylation in VSD,data from 7 pairs of MZ twins with VSD were *** identified 1614 DMRs corresponding to 1443 genes associated with arrhythmogenic right ventricular cardiomyopathy,cyclic guanosine monopho-sphate-protein kinase G(cGMP-PKG)signaling pathway by KEGG analysis,and cell-cell adhesion,calcium ion transmembrane transport by GO analysis.A proportion of DMR-associated genes were involved in calcium signaling *** methylation changes of calcium signaling genes might be related to VSD ***:CHD is associated with differential DNA methylation in MZ *** may be etiologically linked to DNA methylation,and methylation of calcium signaling genes may be involved in the development of VSD.

关键词： Congenital heart disease monozygotic twins methylation modification epigenetics

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Improvement of glucose metabolism in middle-aged mice on a high-fat diet by whole-grain highland barley is related to low methionine levels

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Food Science and Human Wellness 2024年第5期13卷 2906-2916页

作者： Chuanxing feng Yueting Ge Bowen Li xiangrong Cheng xue Tang jianjin Zhu Yuge jiang Yonghui Shi Guowei Le Center for Food Nutrition and Functional Food Engineering School of Food Science and TechnologyJiangnan UniversityWuxi 214122China State Key Laboratory of Food Science and Technology Jiangnan UniversityWuxi 214122China College of Life Science xinyang Normal Universityxinyang 464000China Key Laboratory of xin'an Medicine Ministry of EducationAnhui Province Key Laboratory of R&D of Chinese MedicineAnhui University of Chinese MedicineHefei 230038China

Methionine restriction(MR)is an effective dietary strategy to regulate energy metabolism and alleviate oxidative stress and inflammation in the body,especially in the middle-aged and elderly ***,the high methionine content of meat products makes this dietary strategy impossible to combine with protein supplementation and *** barley(HB),a low-methionine cereal,not only provides the body with protein but also has improved glucose metabolism and antioxidant and anti-inflammatory ***,this study evaluated the feasibility of HB as a source of methionine-restricted dietary protein and the potential ***-aged C57BL/6j mice were fed a control diet(CON),a high-fat diet(HFD),a whole-grain HB high-fat diet(HBHF),or a HBHF+methionine diet(HBHFmet)for 25 *** results showed that the HBHF could keep the body weight,fasting glucose,insulin,homeostasis model assessment of insulin resistance(HOMA-IR),blood lipids,inflammation,and oxidative stress of HFD mice at normal *** with the HFD groups,HBHF inhibited pancreatic cell apoptosis and improved insulin secretion while improving hepatic and skeletal muscle glucose ***,these efficacies were attenuated in HBHFmet group *** findings suggest that HBHF has an MR strategy.

关键词： Methionine restriction strategy Highland barley Insulin secretion Glucose metabolism

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