2. Signaling Pathways
  3. Neuronal Signaling
  4. Amyloid-β

Amyloid-β

β-amyloid peptide; Aβ; Abeta

Amyloid-β

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Amyloid-β (Aβ) denotes peptides of 36–43 amino acids that are crucially involved in Alzheimer's disease as the main component of theamyloid plaques found in the brains of Alzheimer patients. The peptides result from the amyloid precursor protein (APP), which is being cut by certain enzymes to yield Aβ. Amyloid-β molecules can aggregate to form flexible soluble oligomers which may exist in several forms. Amyloid-β peptide is due to overproduction of Aβ and/or the failure of clearance mechanisms. Amyloid-β self-aggregates into oligomers, which can be of various sizes, and forms diffuse and neuritic plaques in the parenchyma and blood vessels. Amyloid-β oligomers and plaques are potent synaptotoxins, block proteasome function, inhibit mitochondrial activity, alter intracellular Ca2+levels and stimulate inflammatory processes. Loss of the normal physiological functions of Aβ is also thought to contribute to neuronal dysfunction.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-W011727
    Pyridoxal 5'-phosphate hydrate
    		Inhibitor 99.76%
    Pyridoxal 5'-phosphate hydrate, the active form of vitamin B6, is an essential cofactor for multiple enzymes, including aromatic l-amino acid decarboxylase that catalyzes the final stage in the production of the neurotransmitters dopamine and serotonin. Pyridoxal 5'-phosphate hydrate is the most important coenzyme variant in the process of vitamin B6 intracellular phosphorylation and is interconvertible with other variants, including pyridoxine 5′‐phosphate (PNP) and pyridoxamine 5′-phosphate (PMP).
    Pyridoxal 5'-phosphate hydrate
  • HY-P1363F3
    5-FAM-β-Amyloid (1-42), human Tris
    5-FAM-β-Amyloid (1-42), human (5-FAM-Amyloid β-peptide (1-42) (human) TFA is a5-FAM labeled β-Amyloid (1-42), human TFA (HY-P1363).
    5-FAM-β-Amyloid (1-42), human Tris
  • HY-N1487
    Oleanonic acid
    		Inhibitor 99.63%
    Oleanonic acid (3-Oxooleanolic acid) is an orally available triterpene that has anti-inflammatory and insecticidal properties. In vitro, oleanonic acid can improve oxidative stress, autophagy defects, ferroptosis, mitochondrial damage, and endoplasmic reticulum stress induced by Amyloid-β, and in vivo, it can alleviate myocardial hypertrophy in rats.
    Oleanonic acid
  • HY-111263
    NIAD-4
    		99.11%
    NIAD-4 is a fluorophore for optical imaging of amyloid-β (Aβ) in the central nervous system (CNS) for Alzheimer’s disease (AD). NIAD-4 binds to the same Aβ site with the binding affinity (Ki) of 10 nM.
    NIAD-4
  • HY-125962
    X-34
    X-34 is a lipophilic and bright yellow-green fluorescent derivative of Congo red (HY-D0236). X-34 can be used to stain neuritic and diffuse plaques, neurofibrillary tangles (NFTs), neuropil threads, and cerebrovascular amyloid in the brain. X-34 can be used for research of Alzheimer’s disease.
    X-34
  • HY-P2550A
    β-Amyloid (1-40), FAM-labeled TFA
    		99.71%
    β-Amyloid (1-40), FAM-labeled TFA is a FAM fluorescently-labelled β-Amyloid (1-40) peptide (λex= 492 nm and λem= 518 nm).
    β-Amyloid (1-40), FAM-labeled TFA
  • HY-N8376
    Fustin
    		Inhibitor 99.52%
    Fustinis ((±)-Fustin; 3,7,3',4'-Tetrahydroxyflavanone) is a potent amyloid β (Aβ) inhibitor. Fustinis ((±)-Fustin; 3,7,3',4'-Tetrahydroxyflavanone) increases the expression of acetylcholine (ACh) levels, choline acetyltransferase (ChAT) activity, and ChAT gene induced by Aβ (1-42). Fustinis ((±)-Fustin; 3,7,3',4'-Tetrahydroxyflavanone) decreases in acetyl cholinesterase (AChE) activity and AChE gene expression induced by Aβ (1-42). Fustinis ((±)-Fustin; 3,7,3',4'-Tetrahydroxyflavanone) increases muscarinic M1 receptor gene expression and muscarinic M1 receptor binding activity. Fustinis ((±)-Fustin; 3,7,3',4'-Tetrahydroxyflavanone) can be used for Alzheimer's disease research.
    Fustin
  • HY-N0651
    Spinosin
    		Inhibitor 99.89%
    Spinosyn is a kind of effective C-saccharide, which has a protective effect. Spinosyn is active through Nrf2/HO-1 pathway inhibition Aβ1-42's production and combination[3 ].
    Spinosin
  • HY-P4808A
    PHF6 TFA
    		99.03%
    PHF6 (VQIVYK) TFA is a self-assembly sequence capable of initiating the full-length tau protein aggregation. PHF6 TFA is mapped to the third microtubule-binding repeat region of the tau protein.
    PHF6 TFA
  • HY-W748591
    Cannflavin A
    		Inhibitor 99.20%
    Cannflavin A can be isolated from Cannabis sativa L.. Cannflavin A has anti-cancer, neuroprotective and anti-inflammatory activity. Cannflavin A inhibits Aβ1-42 aggregation. Cannflavin A also inhibits kynurenine-3-monooxygenase (KMO) (IC50 = 29.4 μM). Cannflavin A activates apoptosis via caspase-3 cleavage. Cannflavin A exerts anti-inflammatory effects by inhibiting pro-inflammatory enzymes, including prostaglandin E2 and cytochrome c oxidases I and II in PC12 cell line.
    Cannflavin A
  • HY-N0812
    Timosaponin BII
    		99.45%
    Timosaponin BII (Prototimosaponin A III) is a steroid saponin found in the rhizomes of Anemarrhena asphodeloides. Timosaponin BII has neuronal protective, anti-inflammatory and antioxidant activities.
    Timosaponin BII
  • HY-113938
    AZD4694
    		Activator 99.57%
    AZD4694 (NAV4694), a fluorinated β-amyloid (Aβ) plaque neuroimaging PET radioligand, shows high affinity for Aβ fibrils (Kd = 2.3 nM).
    AZD4694
  • HY-136780
    SEN177
    		Inhibitor 98.76%
    SEN177 is an orally effect glutamine cyclase (QC) inhibitor. The Ki of SEN177 for human glutamine cyclase (hQC) is 20 nM, and the IC50 is 13 nM. SEN177 interferes with the interaction between CD47 and SIRRPα, and has anti-tumor activity. SEN177 reduces aggregation and apoptosis caused by HTT mutation in Huntington model, and can be used in the study of neurodegenerative diseases.
    SEN177
  • HY-N0249
    Saikosaponin C
    		Inhibitor 99.65%
    Saikosaponin C is a bioactive component found in radix bupleuri, targets amyloid beta and tau in Alzheimer's disease. Saikosaponin C inhibits the secretion of both Aβ1-40 and Aβ1-42, and suppresses abnormal tau phosphorylation, but shows no effect on BACE1 activity and expression.
    Saikosaponin C
  • HY-P5905
    Citrullinated amyloid-β (1-42) peptide (human)
    Citrullinated amyloid-β (1-42) peptide (human) (Citrullinated Aβ (1-42)) is a modified form of β-Amyloid (1-42) (HY-P1363) with a citrullination at the Arg5 site. Compared to the unmodified β-Amyloid (1-42), its formation of soluble low-molecular-weight oligomers is enhanced, the rate of fibril formation is reduced, and like unmodified Aβ42, it forms protofibrils comprised of parallel β-sheets.
    Citrullinated amyloid-β (1-42) peptide (human)
  • HY-N0148R
    Rutin (Standard)
    		Inhibitor
    Rutin (Standard) is the analytical standard of Rutin. This product is intended for research and analytical applications. Rutin (Rutoside) is a flavonoid found in many plants and shows a wide range of biological activities including anti-inflammatory, antidiabetic, antioxidant, neuroprotective, nephroprotective, hepatoprotective and reducing Aβ oligomer activities. Rutin is also a CBR1 inhibitor, which can cross the blood brain barrier. Rutin attenuates vancomycin-induced renal tubular cell apoptosis via suppression of apoptosis, mitochondrial dysfunction, and oxidative stress.
    Rutin (Standard)
  • HY-101861
    Miridesap
    		Inhibitor 99.19%
    Miridesap is a ligand for serum amyloid P component (SAP) and intends to inhibit and dissociate SAP binding to amyloid fibrils and tangles.
    Miridesap
  • HY-D0333
    Direct Red 80
    Direct Red 80 (Sirius Red) is a polyazo dye used principally in staining methods for collagen and amyloid. Direct Red 80 does not release benzidine upon degradation and is safer than many traditional direct dyes.
    Direct Red 80
  • HY-B1786A
    (E/Z)-Sulindac sulfide
    		Inhibitor 99.88%
    (E/Z)-Sulindac sulfide is a potent γ-secretase modulator (GSM). (E/Z)-Sulindac sulfide selectively reduces Aβ42 production in favor of shorter Aβ species. (E/Z)-Sulindac sulfide can be used for researching Alzheimer’s disease.
    (E/Z)-Sulindac sulfide
  • HY-P5124
    β-Amyloid peptide(16-20)
    		Inhibitor 99.95%
    β-Amyloid peptide(16-20) is a amino acid sequences (KLVFF) of Amyloid-β (Abeta). β-Amyloid peptide(16-20) is an effective inhibitor of Abeta fibril formation, with RG-/-GR-NH2 residues added at N- and C-terminal ends to aid solubility).
    β-Amyloid peptide(16-20)
Cat. No. Product Name / Synonyms Application Reactivity