1. Metabolic Enzyme/Protease
  2. Endogenous Metabolite
  3. Docosahexaenoic acid

Docosahexaenoic acid  (Synonyms: 二十二碳六烯酸; DHA; Cervonic acid)

目录号: HY-B2167 纯度: 99.81%
COA 产品使用指南

Docosahexaenoic Acid (DHA)是丰富地存在于脑和视网膜中的ω-3脂肪酸,可以直接从鱼油和母乳中获得。

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Docosahexaenoic acid Chemical Structure

Docosahexaenoic acid Chemical Structure

CAS No. : 6217-54-5

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规格 价格 是否有货 数量
10 mM * 1 mL in DMSO ¥550
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100 mg ¥500
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200 mg ¥800
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500 mg ¥1600
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5 g   询价  

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Other Forms of Docosahexaenoic acid:

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Top Publications Citing Use of Products
  • 生物活性

  • 实验参考方法

  • 纯度 & 产品资料

  • 参考文献

生物活性

Docosahexaenoic Acid (DHA) is an omega-3 fatty acid abundantly present brain and retina. It can be obtained directly from fish oil and maternal milk.

IC50 & Target

Human Endogenous Metabolite

 

体外研究
(In Vitro)

Docosahexaenoic acid (DHA) is essential for the growth and functional development of the brain in infants. DHA is also required for maintenance of normal brain function in adults. The inclusion of plentiful DHA in the diet improves learning ability and memory[1]. DHA is an essential requirement in every step of brain development like neural cell proliferation, migration, differentiation, synaptogenesis. The multiple double bonds and unique structure allow DHA to impart special membrane characteristics for effective cell signaling. Many development disorders like dyslexia, autism spectrum disorder, attention deficit hyperactivity disorder, schizophrenia etc. are causally related to decreased level of DHA[2]. DHA is a potent RXR ligand inducing robust RXR activation already at low micro molar concentrations. The EC50 for RXRα activation by DHA is about 5-10 μM fatty acid[3].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

体内研究
(In Vivo)

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[4]. DHA treatment exerts neuroprotective actions on an experimental mouse model of PD. There is a decrease tendency in brain lipid oxidation of MPTP mice but it does not significantly[5].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Clinical Trial
分子量

328.49

Formula

C22H32O2

CAS 号
性状

液体

颜色

Colorless to light yellow

中文名称

二十二碳六烯酸

结构分类
初始来源
运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

-20°C, protect from light, stored under nitrogen

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen)

溶解性数据
In Vitro: 

DMSO 中的溶解度 : 100 mg/mL (304.42 mM; 超声助溶; 吸湿的 DMSO 对产品的溶解度有显著影响,请使用新开封的 DMSO)

Ethanol 中的溶解度 : 50 mg/mL (152.21 mM; 超声助溶)

配制储备液
浓度 溶剂体积 质量 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
查看完整储备液配制表

* 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, 6 months; -20°C, 1 month (protect from light, stored under nitrogen)。-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。

  • 摩尔计算器

  • 稀释计算器

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

质量
=
浓度
×
体积
×
分子量 *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

浓度 (start)

C1

×
体积 (start)

V1

=
浓度 (final)

C2

×
体积 (final)

V2

In Vivo:

请根据您的 实验动物和给药方式 选择适当的溶解方案。

以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液,再依次添加助溶剂:
——为保证实验结果的可靠性,澄清的储备液可以根据储存条件,适当保存;体内实验的工作液,建议您现用现配,当天使用
以下溶剂前显示的百分比是指该溶剂在您配制终溶液中的体积占比;如在配制过程中出现沉淀、析出现象,可以通过加热和/或超声的方式助溶

  • 方案 一

    请依序添加每种溶剂: 10% EtOH    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 5 mg/mL (15.22 mM); 澄清溶液

    此方案可获得 ≥ 5 mg/mL(饱和度未知)的澄清溶液。

    1 mL 工作液为例,取 100 μL 50.0 mg/mL 的澄清 EtOH 储备液加到 400 μL PEG300 中,混合均匀;再向上述体系中加入 50 μL Tween-80,混合均匀;然后再继续加入 450 μL 生理盐水 定容至 1 mL

    生理盐水的配制:将 0.9 g 氯化钠,溶解于 ddH₂O 并定容至 100 mL,可以得到澄清透明的生理盐水溶液。
  • 方案 二

    请依序添加每种溶剂: 10% EtOH    90% (20% SBE-β-CD in Saline)

    Solubility: 5 mg/mL (15.22 mM); 悬浊液; 超声助溶

    此方案可获得 5 mg/mL的均匀悬浊液,悬浊液可用于口服和腹腔注射。

    1 mL 工作液为例,取 100 μL 50.0 mg/mL 的澄清 EtOH 储备液加到 900 μL 20% 的 SBE-β-CD 生理盐水水溶液 中,混合均匀。

    20% SBE-β-CD in Saline 的配制(4°C,储存一周):2 g SBE-β-CD(磺丁基醚 β-环糊精)粉末定容于 10 mL 的生理盐水中,完全溶解至澄清透明。

以下溶解方案,请直接配置工作液。建议现用现配,在短期内尽快用完。 以下溶剂前显示的百分比是指该溶剂在您配制终溶液中的体积占比; 如在配制过程中出现沉淀、析出现象,可以通过加热和/或超声的方式助溶。

  • 方案 一

    请依序添加每种溶剂: 50% PEG300    50% Saline

    Solubility: 33.33 mg/mL (101.46 mM); 悬浊液; 超声助溶

动物溶解方案计算器
请输入动物实验的基本信息:

给药剂量

mg/kg

动物的平均体重

g

每只动物的给药体积

μL

动物数量

由于实验过程有损耗,建议您多配一只动物的量
请输入您的动物体内配方组成:
%
DMSO +
+
%
Tween-80 +
%
Saline
如果您的动物是免疫缺陷鼠或者体弱鼠,建议 DMSO 中的在最后工作液体系中的占比尽量不超过 2%。
方案所需 助溶剂 包括:DMSO ,均可在 MCE 网站选购。 Tween 80,均可在 MCE 网站选购。
计算结果
工作液所需浓度 : mg/mL
储备液配制方法 : mg 药物溶于 μL  DMSO(母液浓度为 mg/mL)。

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen)

您所需的储备液浓度超过该产品的实测溶解度,以下方案仅供参考,如有需要,请与 MCE 中国技术支持联系。
动物实验体内工作液的配制方法 : 取 μL DMSO 储备液,加入 μL  μL ,混合均匀至澄清,再加 μL Tween 80,混合均匀至澄清,再加 μL 生理盐水
连续给药周期超过半月以上,请谨慎选择该方案。
请确保第一步储备液溶解至澄清状态,从左到右依次添加助溶剂。您可采用超声加热 (超声清洗仪,建议频次 20-40 kHz),涡旋吹打等方式辅助溶解。
纯度 & 产品资料

纯度: 99.81%

参考文献
Animal Administration
[4][5]

Rats: Wistar rats are fed a fish oil-deficient diet through three generations. The young (five-week-old) male rats of the third generation are randomLy divided into two groups. Over 10 weeks, one group is perorally administered docosahexaenoic acid dissolved in 5% gum Arabic solution at 300 mg/kg/day; the other group receives a similar volume of vehicle alone. Five weeks after starting the administration, the rats are tested for learning ability related to two types of memory, reference memory and working memory, with the partially (four of eight) baited eight-arm radial maze[4].

Mice: An experimental model of Parkinson's disease is created by four intraperitoneal injections of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) (4×20 mg/kg, at 12 h intervals). Docosahexaenoic acid is given daily by gavage for 4 weeks (36 mg/kg/day). The motor activity of the mice is evaluated via the pole test. The activity of antioxidant enzymes in the brain are determined by spectrophotometric assays and the concentration of thiobarbituric acid-reactive substances (TBARS) are measured as an index of oxidative damage[5].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

参考文献

Docosahexaenoic acid 相关分类

完整储备液配制表

* 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, 6 months; -20°C, 1 month (protect from light, stored under nitrogen)。-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。

可选溶剂 浓度 溶剂体积 质量 1 mg 5 mg 10 mg 25 mg
Ethanol / DMSO 1 mM 3.0442 mL 15.2212 mL 30.4423 mL 76.1058 mL
5 mM 0.6088 mL 3.0442 mL 6.0885 mL 15.2212 mL
10 mM 0.3044 mL 1.5221 mL 3.0442 mL 7.6106 mL
15 mM 0.2029 mL 1.0147 mL 2.0295 mL 5.0737 mL
20 mM 0.1522 mL 0.7611 mL 1.5221 mL 3.8053 mL
25 mM 0.1218 mL 0.6088 mL 1.2177 mL 3.0442 mL
30 mM 0.1015 mL 0.5074 mL 1.0147 mL 2.5369 mL
40 mM 0.0761 mL 0.3805 mL 0.7611 mL 1.9026 mL
50 mM 0.0609 mL 0.3044 mL 0.6088 mL 1.5221 mL
60 mM 0.0507 mL 0.2537 mL 0.5074 mL 1.2684 mL
80 mM 0.0381 mL 0.1903 mL 0.3805 mL 0.9513 mL
100 mM 0.0304 mL 0.1522 mL 0.3044 mL 0.7611 mL
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    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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