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近日,《BMC》发布了一篇题为High-dose saccharin supplementation does not induce gut microbiota changes or glucose intolerance in healthy humans and mice的文章,发现人和小鼠短期内食用糖精量在最大可接受水平(ADI)时,不会改变其肠道菌群稳态或引起葡萄糖耐受不良。[查看]
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http://cxbio.com/Article/tnbhzdfyllbmcfwncask_1.html
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近日,来自美国国立糖尿病、消化与肾脏疾病研究所和美国国立卫生研究院的科研人员在《Nature Medicine》上发表了题为Effect of a plant-based, low-fat diet versus an animal-based, ketogenic diet on ad libitum energy intake的研究成果,发现相比动物性低碳水高脂饮食,植物性低脂高碳水饮食每天摄入的能量更少,但胰岛素和血糖水平确实更高。[查看]
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http://cxbio.com/Article/naturezkxyjkjfsxdzgt_1.html
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2020年10月6日,美国华盛顿大学医学院 Steven L. Teitelbaum 团队在国际学术期刊《 细胞—代谢 》上发表题为“ Ablation of Fat Cells in Adult Mice Induces Massive Bone Gain ”的文章,揭示了 成年小鼠脂肪细胞的消除能够诱导大量的骨增加。[查看]
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http://cxbio.com/Article/cellzkjfnzjgzlhcxdkg_1.html
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近日,来自美国洛克菲勒大学的研究人员在《Nature Medicine》上发表了题为Brown adipose tissue is associated with cardiometabolic health的研究成果,在这项超过52,000名参与者的大规模研究中,明确了BAT在促进心脑血管代谢健康中具有潜在作用,含有BAT个体的心血管疾病及2型糖尿病等的患病风险明显较低。[查看]
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http://cxbio.com/Article/naturezkc5wryjfxrtns_1.html
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根据一项新的研究,一种基于唾液的便携式智能手机平台为COVID-19测试提供了一种超灵敏但易于使用的方法,它可以在15分钟内给出测试结果,而无需进行当前金标准所需的资源密集型实验室测试。该方法在12名COVID-19感染者和6名健康对照者中进行了测试。相关研究结果于2020年12月11日在线发表在Science Advances期刊上,论文标题为“A smartphone-read ultrasensitive and quantitative saliva test for COVID-19”。论文通讯作者为美国杜兰大学医学院的Tony Y. Hu博士。[查看]
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http://cxbio.com/Article/sciencezklyznsjclmdl_1.html
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神经炎症与阿尔茨海默病(Alzheimer’s disease, AD)密切相关。越来越多的人已认识到神经炎症在AD起着关键作用。环氧脂肪酸(epoxy fatty acid, EpFA)是花生四烯酸代谢途径的衍生物,具有抗炎活性。然而,由于EpFA被可溶性环氧水解酶(soluble epoxide hydrolase, sEH)快速水解,它们的功效受到限制。在一项新的研究中,来自美国贝勒医学院的研究人员报道sEH主要在星形胶质细胞中表达,并在AD患者的死后大脑组织和5xFAD β淀粉样蛋白AD小鼠模型中升高。这种AD小鼠模型大脑中表达的sEH数量与大脑EpFA浓度下降有关。[查看]
-
http://cxbio.com/Article/sciencezkhysjmyzjkjd_1.html
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大约25%的美国人都会患上脂肪肝,这种疾病会导致肝脏纤维化, 最终会导致肝功能衰竭;目前并没有简便的方法来诊断脂肪肝或肝纤维化,近日,一篇发表在国际杂志Nature Biomedical Engineering上题为“A portable single-sided magnetic-resonance sensor for the grading of liver steatosis and fibrosis”的研究报告中,来自麻省理工学院等机构的科学家们通过研究基于核磁共振技术(NMR)开发出了一种新型诊断工具,其或能用来诊断上述两种肝脏疾病。[查看]
-
http://cxbio.com/Article/naturezkjdkxjmkfcngx_1.html
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这篇研究报告中,研究人员发现,轮状病毒感染的细胞能释放名为二磷酸腺苷(ADP,adenosine diphosphate)的信号分子,该信号分子能与邻近细胞上的细胞受体P2Y1相结合,ADP对P2Y1的激活就会导致未感染的细胞中产生名为细胞间钙质波的信号分子,通过干扰ADP与其受体的结合就能够降低小鼠疾病模型的腹泻严重性,这就表明,靶向作用P2Y1或能作为一种有效的策略来控制人群中的病毒性腹泻。[查看]
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http://cxbio.com/Article/sciencejdjmlzbdyfyzw_1.html
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近日,一篇刊登在国际杂志Science Advances上题为“Air pollution and COVID-19 mortality in the United States: Strengths and limitations of an ecological regression analysis”的研究报告中,来自哈佛大学陈曾熙公共卫生学院等机构的科学家们通过研究发现,长期暴露于空气污染物中的人群或许更易死于COVID-19。在对美国超过3000个县的分析中,研究人员发现,长期暴露于细小颗粒物(PM2.5)的暴露量只要发生小幅增加,人群死于COVID-19的风险就会增加10%以上。[查看]
-
http://cxbio.com/Article/sciencezkjdkqwrzhrco_1.html
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近日,来自纽约大学朗格尼健康中心的Victor J. Torres和Ken Cadwell教授合作在Nature发表了题为“Decoy exosomes provide protection against bacterial toxins”的研究论文,该研究揭示了ATG蛋白能够促进外泌体的释放,进而在体外结合多种病原毒素,协助宿主抵御病原菌的感染。[查看]
-
http://cxbio.com/Article/naturewmtngdyxjdsdkc_1.html
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根据《Radiology: Artificial Intelligence》杂志上发表的一项研究,人工智能(AI)可以提高放射科医生在分析乳腺癌筛查乳房X光照片时的效率。[查看]
-
http://cxbio.com/Article/radiologyartificiali_1.html
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近日,一篇发表在国际杂志Proceedings of the National Academy of Sciences上题为“Mapping glycan-mediated galectin-3 interactions by live cell proximity labeling”的研究报告中,来自斯克里普斯研究所等机构的科学家们通过研究提出了一种新型策略来捕获聚糖分子和人类肝脏细胞中特殊蛋白激活子之间的相互作用,这样一来,研究人员就能应用新技术来理解肝脏疾病的发生机制和机体的免疫激活机制。[查看]
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http://cxbio.com/Article/pnaspnasjdkxjmywlyyz_1.html
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近日,一篇发表在国际杂志BMJ Open Diabetes Research & Care上题为“Additive effects of green tea and coffee on all-cause mortality in patients with type 2 diabetes mellitus: the Fukuoka Diabetes Registry”的研究报告中,来自日本九州大学等机构的科学家们通过研究发现,摄入大量绿茶和咖啡或与2型糖尿病患者全因死亡风险降低直接相关。[查看]
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http://cxbio.com/Article/bmjzkjddhlchkfhnmxjd_1.html
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辣根过氧化物酶(Horseradish Peroxidase, HRP, CAS#9003-99-0),来源于辣根,在临床检验中有广泛的作用。既可以用作生化反应中的指示剂,也可以用作免疫反应(尤其是ELISA)中标记试剂,是酶标抗体的关键原料。辣根过氧化物酶作为多个试剂盒显色体系的关键成分,对试剂盒的质量有重要影响。西宝生物提供优质的辣根过氧化物酶(HRP),纯度高,稳定性好,咨询热线400-021-8158。[查看]
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http://cxbio.com/Article/lggyhwm_1.html
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Fluorospark(R) 激酶/ADP 多重检测试剂盒(291-77401)Fluorospark(R) Kinase/ADP Multi-Assay Kit是和光(wako)与日本东京大学新药研究机构共同研发的ADP荧光检测试剂盒。拥有高通量筛选(HTS)必备的高灵敏度、高准确度、低成本、简便等特性。本产品不仅可检测激酶,同时可用于检测产生ADP的酶(如ATP酶、乙酰基—CoA羧化酶)的活性[查看]
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http://cxbio.com/Article/291-77401_1.html
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Fluorospark 激酶/ADP 多重检测试剂盒
-

-
Adipocyte FABP Human ELISA, 人脂肪细胞型脂肪酸结合蛋白Elisa
-

-
Adiponectin Porcine Elisa 猪脂肪连接蛋白Elisa
-

-
Presep(R) Cylinder Adapter
-

-
Presep(R) Cock Adapter Packing
-

-
Presep(R) Column Adapter
-

-
Presep(R) Cylinder Adapter
-

-
Presep(R) Column Adapter Packing
-

-
Presep(R) Cock Adapter
-

-
Presep(R) Column Adapter (TS19/38) (PTFE)
-

-
Presep(R) Column Adapter
-

-
Presep(R) Cock Adapter
-

-
5’-腺苷二磷酸二钠盐|ADP.2Na|16178-48-6|Adenosine 5-diphosphate disodium salt
-

-
Adenosine-5'-O-(2-thiodiphosphate),trilithium salt
-

-
Adenosine-5'-O-(3-thiotriphosphate),tetralithium salt
-

-
ADP,potassium salt
-

-
ADP,disodium salt
-

-
ADP for potassium test,free acid
-

-
ATP, Grade I,disodium salt
-

-
ATP, Grade II,disodium salt
-

-
ADP2Na;腺苷-5'-二磷酸二钠盐
-

-
Alkaline Phosphatase, EIA Grade,from calf intestine, solution
-

-
β-Galactosidase, recombinant, EIA Grade,from E. coli overproducer, lyophilizate
-

-
Peroxidase (POD), EIA Grade,from horseradish, lyophilizate
-

-
Peroxidase (POD), Grade I,from horseradish, lyophilizate
-

-
Poly Peroxidase (Poly POD), EIA Grade,from horseradish, lyophilizate
-

-
辣根过氧化物酶(Horseradish Peroxidase,HRP)
-

-
Coenzyme A, Grade I,free acid
-

-
Coenzyme A, Grade I,trilithium salt
-

-
Coenzyme A, Grade II,trilithium salt
-

-
FAD,disodium salt
-

-
NAD, Grade I,free acid
-

-
NADH, Grade I,disodium salt
-

-
NADH, Grade II,disodium salt
-

-
NADH, Grade II,for potassium test, disodium salt
-

-
NADP,disodium salt
-

-
NADP,monopotassium salt
-

-
NADPH,tetrasodium salt
-

-
Thio-NAD,free acid
-

-
NADH, Grade I(试剂级)
-

-
NADH, Grade II(食品级)
-

-
NADP-2Na,Grade I(医药级)
-

-
复合酶保护剂ADP
-

-
ADA|N-(2-乙酰胺基)-2-亚氨基二乙酸
-

-
5-Bromo-5-Nitro-1,3-Dioxane (BND),Grade I, crystalline powder
-

-
5-Bromo-5-Nitro-1,3-Dioxane (BND),Grade II, crystalline powder
-

-
Eosin Y TS, 0.5% (w/v) Aqueous Solution, Adsorption Indicator for Argentometric Titrations
-

-
Lead 2.5M NaNO3
-

-
Lead 1000ppm
-

-
Analytical Grade Water
-

-
Analytical Grade Water
-

-
4-Hydroxy-TEMPO Benzoate, free radical
-

-
4-Oxo-TEMPO,free radical
-

-
4-Acetamido-TEMPO, free radical
-

-
4-Acetamido-TEMPO, free radical
-

-
4-Hydroxy-TEMPO Benzoate, free radical
-

-
4-Oxo-TEMPO,free radical
-

-
4-Methoxy-TEMPO, free radical, 98+%
-

-
4-Methoxy-TEMPO, free radical, 98+%
-

-
Palladium(II) Nitrate Solution
-

-
Gadolinium Standard Solution(Gd: 1,000mg/l)
-

-
Lead Standard Solution(Pb: 1,000mg/l)
-

-
Lead Standard Solution(Pb: 100mg/l)
-

-
Palladium Standard Solution
-

-
Vanadium Standard Solution(V 1000)
-

-
Gadolinium 1M HCl 1000ppm
-

-
Gadolinium 1M HCl 10000ppm
-

-
Lead Standard 1000ppm in 0.5M HNO3
-

-
Lead Standard 10000ppm in 0.5M HNO3
-

-
Palladium Standard 1M HCl 1000ppm
-

-
Palladium Standard 1M HCl 10000ppm
-

-
Palladium nitrate
-

-
Palladium nitrate
-

-
Palladium nitrate
-

-
Palladium nitrate
-

-
Palladium nitrate
-

-
Palladium nitrate
-

-
Vanadium Standard 1000ppm in 0.5M HNO3
-

-
Vanadium Standard 10000ppm in 0.5M HNO3
-

-
Gadolinium 2-5% HNO3 (v/v) 100ug/mL
-

-
Gadolinium 2-5% HNO3 1,000ug/mL
-

-
Gadolinium 2-5% HNO3 1,000ug/mL
-

-
Gadolinium 2-5% HNO3 (v/v) 1,000ug/mL
-

-
Gadolinium 2-5% HNO3 (v/v) 10,000ug/mL
-

-
Gadolinium 2-5% HNO3 10,000ug/mL
-

-
Lead 2-5% HNO3 100ug/mL
-

-
Lead 2-5% HNO3 1,000ug/mL
-

-
Lead 2-5% HNO3 1,000ug/mL
-

-
Lead 1000ppm in 2% HNO3
-

-
Lead 2 - 5% HNO3 (v/v) 10,000ug/mL
-

-
Palladium 100ppm in 5% HCl
-

-
Palladium 1,000ug/mL in 5% HCl
-

-
Palladium 1,000ug/mL in 5% HCl
-

-
Palladium 5% HCl (v/v) 1000ug/mL
-

-
Palladium 10,000ug/mL in 5% HCl
-

-
Vanadium 2-5% HNO3 (v/v) 100ug/mL
-

-
Vanadium 2% HNO3 1,000ug/mL
-

-
Vanadium 2% HNO3 1,000ug/mL
-

-
Vanadium 2% HCl 1,000ug/mL
-

-
Vanadium 2-5% HNO3 (v/v) 1000ug/mL
-

-
Vanadium 2-5% HNO3 (v/v) 10000ug/mL
-

-
Vanadium 15% HNO3 10,000ug/mL
-

-
Vanadium 15% HCl 10,000ug/mL
-

-
Silver Vanadate
-

-
Lead in 0.005% HNO3 1000ppm
-

-
Lead in 0.005% HNO31000ppm
-

-
Lead in 0.005% HNO3 1000ppm
-

-
Lead-Free Solder Chip(Sn96.5 Ag3 Cu0.5)-Pb High Concentration
-

-
n-Octadecyl 3-(3',5'-Di-t-butyl-4'-hydroxyphenyl)propionate Standard
-

-
Lead Acetate Solution (CH COO) Pb, 10%
-

-
Advanced ERK phospho-T202 /Y204 kit - 1 x 96 tests
-

-
Di(adenosine-5'-)penta-phosphate,trilithium salt
-

-
Zwittergent 3-14,zwitterionic detergent, powder, N-Tetradecyl-N,N-dimethyl-3-ammonio-1-propane-sulfonate
-

-
氧化型辅酶I|烟酰胺腺嘌呤二核苷酸|53-84-9| β-NAD
-

-
Glucose dehydrogenase (NAD(P)-dependent)
-

-
Glutamate dehydrogenase(NADP dependent)
-

-
Glutamate dehydrogenase (NAD dependent)
-

-
Glutamate dehydrogenase (NADP dependent)
-

-
ADP-dependent Hexokinase
-

-
ADP-dependent Hexokinase
-

-
Diaphorase (NADH)
-

-
Diaphorase (NADPH)
-

-
NAD Synthetase
-

-
Adenosine Deaminase,from calf intestine, suspension
-

-
Glutamate Dehydrogenase (NAD(P)),from E.coli overproducer, lyophilizate
-

-
Glutamate Dehydrogenase (NAD(P)),from beef liver, lyophilizate
-

-
Glutamate Dehydrogenase (NAD(P)),from beef liver, chemically modified, lyophilizate
-

-
Glutamate Dehydrogenase (NAD(P)),from beef liver, solution
-

-
D-乳酸脱氢酶(D-LDH), Grade I
-

-
D-乳酸脱氢酶(D-LDH), Grade II
-

-
NAD(P)H Dehydrogenase (quinone) (Diaphorase),from pig heart, suspension
-

-
Liberase MTF C/T, GMP Grade,sterile filtered, lyophilizate
-

-
Liberase T-Flex, Research Grade,sterile filtered, lyophilizate
-

-
Endoproteinase Asp-N, Sequencing Grade,from a mutant of Pseudomonas fragi, lyophilizate
-

-
Endoproteinase Glu-C, Sequencing Grade,from Staphylococcus aureus V8, lyophilizate
-

-
Endoproteinase Lys-C, Sequencing Grade,from Lysobacter enzymogenes, lyophilizate
-

-
Endoproteinase Lys-C, Sequencing Grade,from Lysobacter enzymogenes, solution
-

-
Glucose Dehydrogenase (NAD Dependent)
-

-
Glucose Oxidase (GOD), Grade I,from Aspergillus niger overproducer, lyophilizate
-

-
Glucose Oxidase (GOD), Grade II,from Aspergillus niger overproducer, lyophilizate
-

-
Lactate 2-Monooxygenase (Lactate oxidase), Grade I,from Aerococcus viridans, expressed in E. coli, lyophilizate
-

-
Lactate 2-Monooxygenase (Lactate oxidase), Grade II,from Aerococcus viridans, expressed in E. coli, lyophilizate
-

-
Peroxidase (POD), Grade II,from horse radish, lyophilizate
-

-
DADK嗪草酮标准品
-

-
1-cis-3-Chloroallyl-3,5,7-triaza-1-azonia-adamantane chloride
-

-
Oxadiargyl
-

-
USP Solution Lead Acetate TS Conforms to USP 34
-

-
USP Solution Lead Acetate TS Conforms to USP 34
-

-
European Pharmacopoeia Reagent Lead acetate cotton
-

-
European Pharmacopoeia Reagent Lead acetate paper
-

-
European Pharmacopeoia Lead Acetate Solution
-

-
European Pharmacopoeia Reagent Molybdovanadic reagent
-

-
European Pharmacopoeia Reagent 0.1M Lead Nitrate
-

-
European Pharmacopoeia Reagent Concentrated to make Cadmium Standard sol. (0.1% Cd)
-

-
European Pharmacopoeia Lead Solution (0.1% Pb)
-

-
European Pharmacopoeia Reagent Concentrate to make Lead solution (100ppm Pb)
-

-
EDDP perchlorate (Methadone metabolite),100ug/mL (as pyrolinium) 于甲醇
-

-
EDDP perchlorate (Methadone metabolite),1.0mg/mL (as pyrrolinium) 于甲醇
-

-
Loratadine impurity F
-

-
氧化铝 (Reduction Grade) 标准物质
-

-
MABM-INN22-IgG Human chorionic gonadotropin b-chain