Naringenin is the predominant flavanone in grapefruit; displays strong anti-inflammatory and antioxidant activities. Naringenin has anti-dengue virus (DENV) activity.

Naringenin is shown to inhibit the proliferation of HepG2 cells resulted partly from an accumulation of cells in the G0/G1 and G2/M phase of the cell cycle. Naringenin has been shown to induce apoptosis as evidenced by nuclei damage and increased proportion of apoptotic cells. Naringenin triggers the mitochondrial-mediated apoptosis pathway as shown by an increased ratio of Bax/Bcl-2, subsequent release of cytochrome C, and sequential activation of caspase-3^[1]. Naringenin exposure significantly reduces the cell viability of A431 cells with a concomitant increase in nuclear condensation and DNA fragmentation in a dose dependent manner. Cell cycle study shows that naringenin induced cell cycle arrest in G0/G1 phase of cell cycle and caspase-3 analysis reveal a dose dependent increment in caspase-3 activity which leads to cell apoptosis^[2].

Shanghai Jinpan Biotech Co Ltd has not independently confirmed the accuracy of these methods. They are for reference only.

Naringenin supplementation causes a significant reduction in the amount of total triglyceride and cholesterol in plasma and liver. In addition, naringenin supplementation lowers adiposity and triglyceride contents in parametrial adipose tissue. Naringenin-fed animals show a significant increase in PPARα protein expression in the liver. The expression of CPT-1 and UCP2, known to be regulated by PPARα, is markedly enhanced by naringenin treatment^[3]. Naringenin increases hepatic fatty acid oxidation through a PPARγ coactivator 1α/PPARα-mediated transcription program. It prevents sterol regulatory element-binding protein 1c–mediated lipogenesis in both liver and muscle by reducing fasting hyperinsulinemia. Naringenin decreases hepatic cholesterol and cholesterol ester synthesis^[4]. Naringenin inhibits TNF-α-induced VSMC proliferation and migration in a dose-dependent manner. Mechanistic study demonstrates that naringenin prevents ERK/MAPK and Akt phosphorylation while left p38 MAPK and JNK unchanged. Naringenin also blocks the increase of ROS generation induced by TNF-α^[5].

Shanghai Jinpan Biotech Co Ltd has not independently confirmed the accuracy of these methods. They are for reference only.

272.25

C₁₅H₁₂O₅

480-41-1

柚皮素；柑桔素；柚配制

Room temperature in continental US; may vary elsewhere.

DMSO : ≥ 50 mg/mL (183.65 mM)

* “≥” means soluble, but saturation unknown.

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。-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。

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： 10% DMSO    40% PEG300    5% Tween-80    45% saline

  Solubility: ≥ 3 mg/mL (11.02 mM); Clear solution

  此方案可获得 ≥ 3 mg/mL (11.02 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 30.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中，混合均匀；向上述体系中加入50 μL Tween-80，混合均匀；然后继续加入 450 μL生理盐水定容至 1 mL。

  将 0.9 g 氯化钠，完全溶解于 100 mL ddH₂O 中，得到澄清透明的生理盐水溶液

• 2.

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

  Solubility: ≥ 3 mg/mL (11.02 mM); Clear solution

  此方案可获得 ≥ 3 mg/mL (11.02 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 30.0 mg/mL 的澄清 DMSO 储备液加到 900 μL 20% 的 SBE-β-CD 生理盐水水溶液中，混合均匀。

  将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中，再用生理盐水定容至 10 mL，完全溶解，澄清透明
• 3.

  请依序添加每种溶剂： 10% DMSO    90% corn oil

  Solubility: ≥ 3 mg/mL (11.02 mM); Clear solution

  此方案可获得 ≥ 3 mg/mL (11.02 mM，饱和度未知) 的澄清溶液，此方案不适用于实验周期在半个月以上的实验。

  以 1 mL 工作液为例，取 100 μL 30.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。

• [1]. Arul D, et al. Naringenin (citrus flavonone) induces growth inhibition, cell cycle arrest and apoptosis in human hepatocellular carcinoma cells. Pathol Oncol Res. 2013 Oct;19(4):763-70.

  [2]. Ahamad MS, et al. Induction of apoptosis and antiproliferative activity of naringenin in human epidermoid carcinomacell through ROS generation and cell cycle arrest. PLoS One. 2014 Oct 16;9(10):e110003.

  [3]. Cho KW, et al. Dietary naringenin increases hepatic peroxisome proliferators-activated receptor α proteinexpression and decreases plasma triglyceride and adiposity in rats. Eur J Nutr. 2011 Mar;50(2):81-8.

  [4]. Mulvihill EE, et al. Naringenin prevents dyslipidemia, apolipoprotein B overproduction, and hyperinsulinemia in LDLreceptor-null mice with diet-induced insulin resistance. Diabetes. 2009 Oct;58(10):2198-210.

  [5]. Chen S, et al. Naringenin inhibits TNF-α induced VSMC proliferation and migration via induction of HO-1. Food Chem Toxicol. 2012 Sep;50(9):3025-31.

  [6]. Frabasile S, et al. The citrus flavanone naringenin impairs dengue virus replication in human cells. Sci Rep. 2017 Feb 3;7:41864.

Naringenin is dissolved in DMSO and diluted in cell culture medium. The cells are rinsed with PBS and grown in a medium containing various concentrations of naringenin (50, 100, 150, 200, 250, 300 μM). The solvent DMSO treated cells are served as control. After 24 hrs of treatment, the medium is removed and replaced by another medium containing MTT. Cell viability is measured using the MTT assay^[1].

Shanghai Jinpan Biotech Co Ltd has not independently confirmed the accuracy of these methods. They are for reference only.

Rats: Semi-purified, powdered diets are prepared for concentrations of naringenin: 0, 0.003, 0.006, and 0.012% of diet. After 7 days of acclimatization, rats are assigned to one of four groups, with six animals per group, and fed semi-purified experimental diets for 6 weeks. The experimental diets contain 16% fat, 45.5% sucrose, and different naringenin concentration (0, 0.003, 0.006, or 0.012%) (Table 1). Rats have ad libitum access to food and water during the study period. Food intake and body weight are measured throughout the experiment^[3].

Mouse: Eight- to 12-week-old mice are fed ad libitum a rodent standard diet or a high-fat diet containing 42% of calories from fat plus cholesterol (0.05% wt/wt). Naringenin is added to the Western diet at 1 or 3% (wt/wt). Ldlr^−/− mice are fed for 4 weeks and C57BL/6J mice for 30 weeks. Food intake is measured daily, and body weight is measured biweekly. Mice are fasted for 6 h before intervention^[4].

Shanghai Jinpan Biotech Co Ltd has not independently confirmed the accuracy of these methods. They are for reference only.

• [1]. Arul D, et al. Naringenin (citrus flavonone) induces growth inhibition, cell cycle arrest and apoptosis in human hepatocellular carcinoma cells. Pathol Oncol Res. 2013 Oct;19(4):763-70.

  [2]. Ahamad MS, et al. Induction of apoptosis and antiproliferative activity of naringenin in human epidermoid carcinomacell through ROS generation and cell cycle arrest. PLoS One. 2014 Oct 16;9(10):e110003.

  [3]. Cho KW, et al. Dietary naringenin increases hepatic peroxisome proliferators-activated receptor α proteinexpression and decreases plasma triglyceride and adiposity in rats. Eur J Nutr. 2011 Mar;50(2):81-8.

  [4]. Mulvihill EE, et al. Naringenin prevents dyslipidemia, apolipoprotein B overproduction, and hyperinsulinemia in LDLreceptor-null mice with diet-induced insulin resistance. Diabetes. 2009 Oct;58(10):2198-210.

  [5]. Chen S, et al. Naringenin inhibits TNF-α induced VSMC proliferation and migration via induction of HO-1. Food Chem Toxicol. 2012 Sep;50(9):3025-31.

  [6]. Frabasile S, et al. The citrus flavanone naringenin impairs dengue virus replication in human cells. Sci Rep. 2017 Feb 3;7:41864.