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- 文献和实验
- 技术资料
- 库存:
57
- 英文名:
Nicotinamide
- CAS号:
98-92-0
- 供应商:
上海莼试
- 保存条件:
4°C, protect from light
- 规格:
10mM (in 1mL DMSO) 500mg 1g 5g
分子式:C6H6N2O

分子量:122.13
溶解度:DMF: 15 mg/ml,DMSO: 15 mg/ml,Ethanol: 2.5 mg/ml,PBS (pH 7.2): 10 mg/ml
储存条件:4°C, protect from light
General tips:For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.
Shipping Condition:Evaluation sample solution : ship with blue ice All other available size: ship with RT , or blue ice upon request
IC50: N/ANicotinamide is an inhibitor of poly(ADP-ribose) polymerase (PARP-1) enzymes. Poly(ADP-ribose) polymerase-1 (PARP-1) is found as a DNA repair enzyme. The excessive activation of PARP-1, such as ischemia and trauma, can deplete cellular nicotinamide adenine dinucleotide as a substrate and leads to brain cell death eventually.In vitro: Previous findings suggested that nicotinamide had a protective effect against PARP-1-induced astrocyte death. The transporter-mediated uptake of nicotinamide, which was extracellular pH-sensitive and common to N-methylnicotinamide, was found to be critical for prevention of PARP-1-triggered cell death [1].In vivo: Type 2 diabetes was induced in Wistar rats by streptozotocin followed by nicotinamide. Test compounds and standard treatment were continued for 15 days. Results showed that there was significant normalisation of liver antioxidant enzymes compared to diabetic rats, suggesting all the tested compounds were beneficial in reducing oxidative stress [2].Clinical trial: Previous clinical trials showed nicotinamide was well tolerated. Phase 1 showed a dose-response relation for proportional change in frataxin protein concentration. Phases 2 and 3 showed daily dosing resulted in a sustained and significant upregulation of frataxin expression [3].
商品属性:
| 货号 | CS-01Y67442 | 规格 | 10mM (in 1mL DMSO) 500mg 1g 5g |
| CAS号 | 98-92-0 | 分子量 | 122.13 |
| 含量 | >99.00% | 别名 | N/A |
| 分子式 | C6H6N2O | 化学名 | pyridine-3-carboxamide |
| 产地 | 国产 | 用途 | 仅供科研研究实验 |
抗逆滴加序列
每次向板内滴加抗原时,移液器滴头要与平面45度悬空,不要触碰到孔内的液体,由后向前依次滴加(即浓度由低往高滴加)。
抗感染反应期
抗原抗体在室温20~25℃下,必须反应30min以上,若环境温度低于室温,可将微量反应板置于恒温培养箱中,使二者充分反应。
旅游温度
磷酸盐缓冲液的pH值要在高压灭菌后进行滴定,往往在高压后pH值会有所改变,所以高压后再调一次pH值更为准确。磷酸盐缓冲液一经使用保存期不要超过3周。当pH<5.8时,红细胞会产生自凝现象;当pH>7.8时,图形洗脱加快,易造成肉眼观察产生误差;p H=7.2时,红细胞沉降最充分,图形最清晰。
当滴注 1%红细胞悬液时,应经常摇晃红细胞悬液,使红细胞均匀地分布在磷酸缓冲液中,以防止红细胞下降。
反应时间及温度
加入鸡红血球之后,反应板在室温(20~25℃)静置30~40min,对照孔血球下沉于孔底,即可判定结果。若室温达不到实验要求,需相应调整反应时间。当环境温度低于4℃时,红细胞发生自凝;高于37℃时,会发生反应物分离和红细胞溶血。
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1.本蛋白酶抑制剂混合物为100×的储存液,使用时按照1:100的比例加入到裂解液中(例如,1ml裂解液中加入10μl蛋白酶抑制剂混合物),混匀后即可使用。根据需要,0.5M的EDTA也按照1:100的比例加入到裂解液中(如用于检测金属蛋白酶活性,则不宜添加EDTA)。含有蛋白酶抑制剂混合物的裂解液宜现用现配,不宜配制后冻存待后续使用。
2. 待所需的抑制剂添加完毕混匀后,就可以开始进行哺乳动物组织的裂解和蛋白提取。
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文献和实验Animal Models of Niacin-Nicotinamide Deficiency
The human disease caused by niacin (vitamin B3 ) deficiency is pellagra, a disease that at one time filled insane asylums all over the world before the function of niacin was discovered. The recognition of pellagra as an endemic disease
Nicotinamide adenine dinucleotide (NAD+ ) plays a critical role in regulating numerous biological and physiological pathways including metabolism, inflammation, cancer, and aging in mammals. Here we describe a highly quantitative method
Measurement of Sirtuin Enzyme Activity Using a Substrate-Agnostic Fluorometric Nicotinamide Assay
for the measurement of sirtuin activity by detecting the production of nicotinamide (NAM). The assay is amenable to any substrate and any modification removed by sirtuins. The assay may also be used to measure glycohydrolase (e.g., CD38) and ADP-ribosyltransferase
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