生物活性
Docosahexaenoic acid is a endogenous omega-3 fatty acid. Docosahexaenoic Acid (DHA) acts as a selective retinoid X receptor (RXR) agonist that displays no activity at RAR, thyroid hormone receptor or the vitamin D receptor (VDR). Docosahexaenoic Acid (DHA) activates all three RXR isoforms. DHA also shown to inhibit Aβ1-42 fibrillation and toxicity in vitro. The multiple double bonds and unique structure allow DHA to impart special membrane characteristics for effective cell signaling.
Docosahexaenoic acid administration over 10 weeks significantly reduces the number of reference memory errors, without affecting the number of working memory errors, and significantly increases the docosahexaenoic acid content and the docosahexaenoic acid/arachidonic acid ratio in both the hippocampus and the cerebral cortex.
化学数据
| 分子量 | 328.49 |
| 分子式 | C22H32O2 |
| CAS号 | 6217-54-5 |
| 纯度 | >99% |
| 溶解性（25°C） | DMSO 60 mg/mL |
| 储存和运输条件 | -20°C, protect from light, sealed
常温运输及临时存放 |
不同实验动物依据体表面积的等效剂量转换表（数据来源于FDA指南）
| 小鼠 | 大鼠 | 兔 | 豚鼠 | 仓鼠 | 狗 |
| 重量 (kg) | 0.02 | 0.15 | 1.8 | 0.4 | 0.08 | 10 |
| 体表面积 (m2) | 0.007 | 0.025 | 0.15 | 0.05 | 0.02 | 0.5 |
| Km系数 | 3 | 6 | 12 | 8 | 5 | 20 |
| 动物 A (mg/kg) = 动物 B (mg/kg) × | 动物 B的Km系数 |
| 动物 A的Km系数 |
例如，依据体表面积折算法，将化合物用于小鼠的剂量20 mg/kg 换算成大鼠的剂量，需要将20 mg/kg 乘以小鼠的Km系数（3），再除以大鼠的Km系数（6），得到化合物用于大鼠的等效剂量为10 mg/kg。
储备液配制
以下数据基于产品分子量，对于特殊产品，请参照COA中的储备液配制条件和说明进行操作。
| Concentration / Solvent Volume / Mass | 1 mg | 5 mg | 10 mg |
|---|
| 1 mM | 3.0442 mL | 15.2212 mL | 30.4423 mL |
| 5 mM | 0.6088 mL | 3.0442 mL | 6.0885 mL |
| 10 mM | 0.3044 mL | 1.5221 mL | 3.0442 mL |
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