Amyloid-β (25-35) (Aβ (25-35)) is an 11-residue fragment of the Aβ protein that retains the physical and biological characteristics of the full length peptide. It forms fibrils that react to thioflavin T and Congo red and are organized in a cross-β arrangement of β-strands similar to Aβ (1-40) and Aβ (1-42) fibrils. Aggregated Aβ (25-35) decreases the viability of rat adrenal PC12 cells. It also decreases the viability of primary rat cortical neurons at concentrations ranging from 1 nM to 30 μM. In vivo, intracerebral injection of Aβ (25-35) (20 nmol) in rats induces lesions of neuronal and tissue loss. Aggregated Aβ (25-35) administered intracerebroventricularly to rats induces learning and memory impairments in the Y-maze, novel object recognition, and contextual fear conditioning tests.
Human serum albumin(人血清白蛋白,HSA)是人类血浆中含量最多的蛋白质,在肝脏中产生并且可溶于水,分子量为66.5 kDa。HSA通过选择性结合交叉结构的 A 寡聚体,抑制阿尔茨海默病。HSA是淀粉样蛋白-β (Αβ)聚集的关键内源性抑制剂。HSA在细胞培养中作为载体蛋白,用于运输脂肪酸、类固醇和甲状腺激素,并调节血液的渗透压;还用于药物递送研究、免疫分析和细胞冻存。
γ-Secretase modulator 4 is a potent γ-secretase modulator, reduces the Aβ42 level with IC50s of 0.017 μM and 0.014 μM in mouse and human, respectively.
Flutafuranol, also known as AZD 4694 and NAV4694, is a bio-active chemical. AZD4694 shows high affinity for beta-amyloid fibrils in vitro (K(d) = 2.3 +/- 0.3 nM). The fluorine-18 labeled AZD4694 may have potential for PET-visualization of cerebral beta-am
Neuropeptide Y (human) TFA, a compound implicated in Alzheimer's disease (AD), exhibits protective effects against β-Amyloid toxicity in rat cortical neurons.