β-Amyloid (1-40) (rat)

β-Amyloid (1-40) (rat) is a rat form of the amyloid β-peptide, which accumulates as an insoluble extracellular deposit around neurons, giving rise to the senile plaques associated with Alzheimer's disease (AD). β-Amyloid (1-40) (rat) increases ⁴⁵Ca²⁺ influx, induces neurodegeneration in the rat hippocampal neurons of the CA1 subfield. β-Amyloid (1-40) (rat) induces apoptosis. β-Amyloid (1-40) (rat) can be used for the research of Alzheimer's disease^[1][2]. In Vitro:β-Amyloid (1-40) (rat) (1 μM; 1 h) increases ⁴⁵Ca²⁺ influx and elevates Ca²⁺ in cortical synaptosomes^[1].
β-Amyloid (1-40) (rat) (3 nM) induces neurodegeneration in the rat hippocampal neurons of the CA1 subfield and induces apoptosis^[2].

β-Amyloid Aggregation Guidelines (Following is our recommended protocol. This protocol only provides a guideline, and should be modified according to your specific needs).
1. Solid Aβ peptide is dissolved in cold hexafluoro-2-propanol (HFIP). The peptide is incubated at room temperature for at least 1 h to establish monomerization and randomization of structure.
2. The HFIP is removed by evaporation, and the resulting peptide is stored as a film at -20 or -80 °C.
3. The resulting film is dissolved in anhydrous DMSO at 5 mM and then dilutes into the appropriate concentration and buffer (serum- and phenol red-free culture medium) with vortexing.
4. Next, the solution is age 48 h at 4-8 °C. The sample is then centrifuged at 14000g for 10 min at 4-8 °C; the soluble oligomers are in the supernatant. The supernatant is diluted 10-200-fold for experiments.
Methods vary depends on the downstream applications. In Vivo:β-Amyloid (1-40) (rat) (1.7 mg; ICV, for 7 d; swiss and C57BL/6 mice) induces the learning and memory deficits in mice^[3].