trans-EKODE-(E)-Ib
(Synonyms: 12,13epoxy9keto10(trans)Octadecenoic Acid) 目录号 : GC45071Biologically active oxidative derivative of linoleic acid
Cas No.:478931-82-7
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
During oxidative stress, the abundant unsaturated fatty acid linoleic acid undergoes lipid peroxidation to produce α,β-unsaturated epoxy-keto-octadecenoic acids (EKODEs). Nonenzymatic autooxidation of linoleic acid generates six major EKODE isomers, which differ from one another in the positioning and the orientation of the epoxy group relative to the keto moiety. trans-EKODE-(E)-Ib is a biologically active peroxidation product of linoleic acid that is characterized, structurally, by having a trans carbon-carbon double bond between the 9-keto and 12,13-epoxy groups. It activates an antioxidant response element (ARE) in neuronal cells and induces the expression of ARE-regulated cytoprotective genes like NQO1. This EKODE also stimulates the synthesis of aldosterone and corticosterone in adrenal cells when supplied at 1-5 μM. This effect appears to be mediated by a rise in intracellular calcium.
| Cas No. | 478931-82-7 | SDF | |
| 别名 | 12,13epoxy9keto10(trans)Octadecenoic Acid | ||
| Canonical SMILES | CCCCCC(O1)C1/C=C/C(CCCCCCCC(O)=O)=O | ||
| 分子式 | C18H30O4 | 分子量 | 310.4 |
| 溶解度 | DMF: 50 mg/ml,DMSO: 50 mg/ml,Ethanol: 50 mg/ml,PBS (pH 7.2): .5 mg/ml | 储存条件 | Store at -20°C |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 3.2216 mL | 16.1082 mL | 32.2165 mL |
| 5 mM | 0.6443 mL | 3.2216 mL | 6.4433 mL |
| 10 mM | 0.3222 mL | 1.6108 mL | 3.2216 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Pectin and inulin stimulated the mucus formation at a similar level: An omics-based comparative analysis
J Food Sci 2020 Jun;85(6):1939-1947.PMID:32468578DOI:10.1111/1750-3841.15163
Mucin 2 (MUC2) is the skeleton of colonic mucus that comprises the physical intestinal barrier. Different dietary polysaccharides may affect colonic mucus at different extents. The effect of pectin on MUC2 production is contradictory. To investigate whether and how pectin affected hosts' colonic mucus, the amount of MUC2 in colon, the cecal, mucosal microbiota, and metabolites profiles were analyzed and compared with inulin. The results showed pectin stimulated the production of MUC2 at a similar level to inulin. Both interventions increased the abundance of cecal Lachnospira and Christensenellaceae_R-7_group, and enhanced the production of specific metabolites including soyasapogenol B 24-O-b-d-glucoside, lucyoside Q, trans-EKODE-(E)-Ib, and 1,26-dicaffeoylhexacosanediol. Additionally, pectin increased the relative abundance (RA) of cecal Lactobacillus, and induced less RA of potentially harmful bacteria such as Helicobacter in mucosal microbiota than inulin. In conclusion, we first reported that pectin and inulin stimulated the mucus formation at a similar level. Two genera of cecal bacteria and four metabolites may play an important role in enhancing the production of MUC2. Moreover, the MUC2 production may be unrelated to several traditional health-beneficial bacteria; pectin possibly performed as good as or better than the inulin in rats' gut.