Beta-Sitosterol (purity>80%) includes β-sitosterol (≥80%), stigmasterol, campesterol and brassicasterol mainly. Beta-Sitosterol is a plant sterol. Beta-Sitosterol (purity>80%) interfere with multiple cell signaling pathways, including cell cycle, apoptosis, proliferation, survival, invasion, angiogenesis, metastasis and inflammation^[1].

Bioactivity-guided isolation afforded three compounds from the hexane fraction of E. indica, namely, Beta-Sitosterol (β-sitosterol), Stigmasterol, and Lutein. Both compounds are found to possess very low PPL inhibition activity, that is, 2.99±0.80% (Beta-Sitosterol) of inhibition at 100 μg/mL (242 μM) and 2.68±0.38% (Stigmasterol) of inhibition at 100 μg/mL (243 μM), respectively. Weak PPL inhibition activity of Beta-Sitosterol and Stigmasterol isolated from Alpinia zerumbet with IC₅₀ value of 99.99±1.86 μg/mL and 125.05±4.76 μg/mL, respectively, in comparison with the inhibition shown by Curcumin (IC₅₀=4.92±0.21 μg/mL) and Quercetin (IC₅₀=18.60±0.86 μg/mL) which are used as positive controls in their study. Beta-Sitosterol and Stigmasterol are recorded with weak PPL inhibitory activity of only 3.0±0.8% and 2.7±0.4% at 100 μg/mL, respectively, (i.e., 242 μM and 243 μM) in contrast (34.5±5.4% at 100 μg/mL), which are comparatively lower than that recorded in literature (i.e., 50% PPL inhibition at 100 μg/mL)^[1]. Sitosterol is an important compound extracted from the leaves of Aloe vera. It inhibits the growth of promastigotes of L. donovani, a causative agent for life threatening visceral leishmaniasis disease^[2].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

Beta-Sitosterol (β-sitosterol) treatment significantly reduced the immobility time at three doses (10, 20, and 30 mg/kg) in the Forced Swim Test (FST) and Tail Suspension Test (TST), indicating an antidepressant effect. This effect is similar to the positive control fluoxetine (20 mg/kg) at a dose of 30 mg/kg, where the strongest effect is observed compared with the control group (P < 0.001). The same effects are observed for three doses of Beta-Sitosterol in the TST. The % DID values are as follows: FST: 39.27% (10 mg/kg), 51.23% (20 mg/kg), and 57.48% (30 mg/kg); TST: 31.63% (10 mg/kg), 43.95% (20 mg/kg), and 53.38% (30 mg/kg). These results indicate that Beta-Sitosterol has a significant antidepressant activity in mice during the FST and TST. Furthermore, Beta-Sitosterol exhibits the antidepressant effect in a dose-dependent manner^[3].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

414.71

C₂₉H₅₀O

83-46-5

β-谷甾醇；谷固醇；谷甾醇；麦固醇

Room temperature in continental US; may vary elsewhere.

-20°C, protect from light

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

Ethanol : 3.85 mg/mL (9.28 mM; Need ultrasonic)

DMSO : 1 mg/mL (2.41 mM; Need ultrasonic)

H₂O : 0.1 mg/mL (0.24 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；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)。-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： 0.5% CMC-Na/saline water

  Solubility: 20 mg/mL (48.23 mM); Suspended solution; Need ultrasonic

• [1]. Bin Sayeed MS, et al. Beta-Sitosterol: A Promising but Orphan Nutraceutical to Fight Against Cancer. Nutr Cancer. 2015;67(8):1214-20.

  [2]. Tariq A, et al. Ethnomedicines and anti-parasitic activities of Pakistani medicinal plants against Plasmodia and Leishmania parasites. Ann Clin Microbiol Antimicrob. 2016 Sep 20;15(1):52.

  [3]. Zhao D, et al. Structural Features and Potent Antidepressant Effects of Total Sterols and β-sitosterol Extracted from Sargassum horneri. Mar Drugs. 2016 Jun 28;14(7).

Mice^[3]
Male ICR mice (20±2 g) and male KunMing mice (20±2 g) are used. Local breed, male ICR mice (20±2 g) are used in the FST under standard conditions with free access to food and water. Mice are randomly divided into four groups (8 mice per group are used) for the tail suspension test (TST): Beta-Sitosterol (10, 20, and 30 mg/kg), total sterols (50, 100, and 200 mg/kg), fluoxetine (20 mg/kg), or distilled water. 80 male mice are used. Briefly, the vehicle or test drugs are administered 30 min before a test session acute ip injection. Then, mice are individually suspended by tail with clamp (2 cm from the tip of the end) in a box (25 cm×25 cm×30 cm) with the head 5 cm to the bottom. Testing is carried out in a darkened room with minimal background noise. All animals are suspended for total 6 min, and the duration of immobility is observed and measured during the final 4-min interval of the test. All test sessions are recorded by a video camera positioned directly above the box. Two competent observers blind to treatment scored the videotapes. Mice consider immobile only when they hung passively and completely motionless. The animals are used only once in this test. All TSTs are performed between 11:00 A.M. and 14:00 P.M.

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

• [1]. Bin Sayeed MS, et al. Beta-Sitosterol: A Promising but Orphan Nutraceutical to Fight Against Cancer. Nutr Cancer. 2015;67(8):1214-20.

  [2]. Tariq A, et al. Ethnomedicines and anti-parasitic activities of Pakistani medicinal plants against Plasmodia and Leishmania parasites. Ann Clin Microbiol Antimicrob. 2016 Sep 20;15(1):52.

  [3]. Zhao D, et al. Structural Features and Potent Antidepressant Effects of Total Sterols and β-sitosterol Extracted from Sargassum horneri. Mar Drugs. 2016 Jun 28;14(7).