Vincamine is a monoterpenoid indole alkaloid extracted from the Madagascar periwinkle. Vincamine is a peripheral vasodilator and exerts a selective vasoregulator action on the brain microcapilar circulation^[1]. Vincamine is a GPR40 agonist and acts as a β-cell protector by ameliorating β-cell dysfunction and promoting glucose-stimulatedinsulinsecretion (GSIS). Vincamine improves glucose homeostasis in vivo, and has the potential for the type 2 diabetes mellitus (T2DM) research^[2].

Vincamine (20, 40 and 80 μM; 24 hours) exerts a significant, concentration-dependent protective effect in LPS-treated human corneal epithelial cells (HCECs) cells^[1].
Vincamine (20, 40 and 80 μM; 24 hours) significantly reduces ROS level in a dose-dependent manner in LPS-treated human corneal epithelial cells (HCECs)cells. Additionally, after Vincamine administration, the levels of MDA is also significantly reduced while the levels of T-AOC, and SOD are increased in a dose-dependent manner^[1].
Vincamine (20, 40 and 80 μM; 24 hours) rescues TrxR activity in a dose-dependent manner in HCECs. However, the intracellular activities of Trx, GR and GPx are neither inhibited nor activated by both LPS and Vincaminer^[1].
Vincamine could activate GPR40 (EC₅₀=6.28 μM) with DHA (GPR40 ligand) as a positive control (EC₅₀=3.85 μM) in hGPR40-CHO cells^[2].

Vincamine (intraperitoneal injection; 15 and 30 mg/kg/day; 6 weeks) improves glucose tolerance in type 2 diabetic model mice. It effectively lowers the levels of fasting blood glucose and glycated hemoglobin. At the same time, it ameliorates oral glucose tolerance and elevated glucose-induced plasma insulin concentration without influence on basal insulin secretion in vivo^[2].<.br>

354.44

Solid

C₂₁H₂₆N₂O₃

1617-90-9

长春胺；长春花素；太司尼克酸；长春蔓胺；阿朴长春胺酸乙酯；长春花胺

• Alkaloids
• Indole Alkaloids

• Plants
• Apocynaceae
• Catharanthus roseus(L.) G. Don

Room temperature in continental US; may vary elsewhere.

DMSO : 25 mg/mL(70.53 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℃, 6 months; -20℃, 1 month。-80℃ 储存时，请在 6 个月内使用，-20℃ 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: ≥ 2.5 mg/mL (7.05 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (7.05 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 25.0 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%corn oil

  Solubility: ≥ 2.5 mg/mL (7.05 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (7.05 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 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。