Acetaminophen (Paracetamol) 是选

Acetaminophen (Paracetamol) is a selective cyclooxygenase-2 (COX-2) inhibitor with an IC₅₀ of 25.8 μM; is a widely used antipyretic and analgesic agent^[1][2][3]. Acetaminophen is a potent hepatic N-acetyltransferase 2 (NAT2) inhibitor^[4].

In vitro, acetaminophen elicites a 4.4-fold selectivity toward COX-2 inhibition (IC₅₀ 113.7 μM for COX-1; IC₅₀ 25.8 μM for COX-2). Following oral administration of the drug, maximal ex vivo inhibitions are 56% (COX-1) and 83% (COX-2). Acetaminophen plasma concentrations remaine above the in vitro IC₅₀ for COX-2 for at least 5 h postadministration. Ex vivo IC₅₀ values (COX-1: 105.2 μM; COX-2: 26.3 μM) of acetaminophen compared favorably with its in vitro IC₅₀ values. In contrast to previous concepts, acetaminophen inhibited COX-2 by more than 80%, i.e., to a degree comparable to nonsteroidal antiinflammatory drugs (NSAIDs) and selective COX-2 inhibitors. However, a >95% COX-1 blockade relevant for suppression of platelet function is not achieved^[1]. MTT assay shows that Acetaminophen (APAP) in a dose of 50 mM significantly (p<0.001) reduces cell viability to 61.5±6.65%. Interestingly, the significant (p<0.01) increase in cell viability to 79.7±2.47% is observed in the Acetaminophen/HV110 co-treated cells, compared to Acetaminophen treated cells^[2].

Acetaminophen 可用于动物建模，构建小鼠急性肝损伤模型。

151.16

固体

C₈H₉NO₂

103-90-2

对乙酰氨基酚；乙酰氨基酚；扑热息痛；退热净；醋氨酚；对醋氨酚；索密痛；二醋洛尔

Room temperature in continental US; may vary elsewhere.

*该产品在溶液状态不稳定，建议您现用现配，即刻使用。

DMSO : 250 mg/mL (1653.88 mM; Need ultrasonic)

H₂O : 10 mg/mL (66.16 mM; Need ultrasonic)

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；该产品在溶液状态不稳定，建议您现用现配，即刻使用。

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

• 1.

  请依序添加每种溶剂： 0.5% CMC-Na/saline water

  Solubility: 10 mg/mL (66.16 mM); Suspended solution; Need ultrasonic

   

• 2.

  请依序添加每种溶剂： saline  0.5% Tween-80

  Solubility: 10 mg/mL (66.16 mM); Clear solution; Need ultrasonic

   

• 3.

  请依序添加每种溶剂： PBS

  Solubility: 6.67 mg/mL (44.13 mM); Clear solution; Need ultrasonic

• [1]. Hinz, B, et al. Acetaminophen (paracetamol) is a selective cyclooxygenase-2 inhibitor in man. FASEB J, 2008. 22(2): p. 383-90.  [Content Brief]

  [2]. Miroslav Dinić, et al. Lactobacillus fermentum Postbiotic-induced Autophagy as Potential Approach for Treatment ofAcetaminophen Hepatotoxicity. Front Microbiol. 2017 Apr 6;8:594.  [Content Brief]

  [3]. Uchida NS, et al. Hepatoprotective Effect of Citral on Acetaminophen-Induced Liver Toxicity in Mice. Evid Based Complement Alternat Med. 2017;2017:1796209.  [Content Brief]

  [4]. Rothen JP, et al. Acetaminophen is an inhibitor of hepatic N-acetyltransferase 2 in vitro and in vivo. Pharmacogenetics. 1998 Dec;8(6):553-9.  [Content Brief]