原花青素 A1 (Proanthocyanidin A1) 是一种原花青素二聚体，抑制蛋白激酶 C 激活下游脱粒或 RBL-213 细胞内部储存的 Ca2+ 流入。原花青素 A1 具有抗过敏作用。
CAS：103883-03-0
分子式：C30H24O12
分子量：576.5
纯度：98%
存储：Store at -20°C

Background:

Procyanidin A1 (Proanthocyanidin A1) is a procyanidin dimer, which inhibits degranulation downstream of protein kinase C activation or Ca2+ influx from an internal store in RBL-213 cells. Procyanidin A1 has antiallergic effects[1].

Procyanidin A1 suppress serum IgE and IgG1 levels in mice-immunized with ovalbumin[2].

[1]. Tomochika K, et al. Effects of peanut-skin procyanidin A1 on degranulation of RBL-2H3 cells. Biosci Biotechnol Biochem. 2011;75(9):1644-8. [2]. Takano F, et al. Aqueous extract of peanut skin and its main constituent procyanidin A1 suppress serum IgE and IgG1 levels in mice-immunized with ovalbumin. Biol Pharm Bull. 2007 May;30(5):922-7.