Amyloid-β
β-amyloid peptide; Aβ; Abeta
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.
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Amyloid-β Inhibitors
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Amyloid-β Agonists
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Amyloid-β Antagonists
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Amyloid-β Activators
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Amyloid-β Modulators
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Amyloid-β Chemicals
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Amyloid-β Inducers
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Amyloid-β Degraders
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Amyloid-β Controls
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Amyloid-β Substrate
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Amyloid-β Ligands
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Amyloid-β Related Products (757)
Related Products (757)
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Antibodies (9)
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Pellitorine
0 ImagesPellitorine is a bioactive natural amide compound. Pellitorine can competitively antagonize the activation of TRPV1 by Capsaicin (HY-10448), thereby reducing pain signal transmission. Pellitorine improves cognitive dysfunction by upregulating the BDNF-ERK1/2-CREB and Nrf2-HO-1 pathways. Pellitorine exerts anti-inflammatory and anti-sepsis effects by inhibiting the release of high mobility group protein B1 (HMGB1) and the expression of RAGE/TLR4. Pellitorine exerts its antithrombotic effect by prolonging the clotting time, inhibiting the activity of clotting factors and thrombin. Pellitorine inhibits lipid peroxidation and resists ferroptosis by upregulating GPX4 and DHODH. Pellitorine kills Aedes aegypti mosquito larvae by inhibiting V-type H⁺-ATPase and aquaporin 4 (AaAQP4). Pellitorine exhibits anti-cancer activity (e.g., leukemia and breast cancer) and has inhibitory effects on certain bacteria.
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β-Amyloid (22-35) TFA
0 ImagesCat. No.: HY-P1474ASynonyms: Amyloid β-Protein (22-35) TFAβ-Amyloid 22-35 (Amyloid β-Protein 22-35) TFA, the residues 22-35 fragment ofβ-amyloid protein, has a cytotoxic effect on cultured neurons from the rat hippocampus in serum-free medium. β-Amyloid 22-35 TFA forms aggregates and typical amyloid fibrils resembling those of the β-amyloid protein in neutral buffer solution).
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(E)-3',6-Disinapoylsucrose
0 Images(E)-3',6-Disinapoylsucrose is an orally active, blood-brain barrier permeable neuroprotective agent that inhibits Aβ protein aggregation. (E)-3',6-Disinapoylsucrose exerts anxiolytic, anti-inflammatory and cognitive-enhancing effects. (E)-3',6-Disinapoylsucrose regulates the TrkB/BDNF signaling pathway, inhibits the expression of NF-κB p65, reduces pro-inflammatory cytokine levels, and alleviates neuronal damage. (E)-3',6-Disinapoylsucrose also enhances the functions of central 5-HT and noradrenergic systems, thereby improving spatial learning and memory abilities and reducing anxiety-like behaviors. (E)-3',6-Disinapoylsucrose can be used for the research of related diseases such as Alzheimer's disease, depression, memory impairment and anxiety disorder.
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(9R)-RO7185876
0 Images(9R)-RO7185876 (Compound example 16) is a γ-secretase inhibitor. (9R)-RO7185876 inhibits Αβ42 secretion. (9R)-RO7185876 can be used for the researches of Alzheimer's disease, cerebral amyloid angiopathy, hereditary cerebral hemorrhage with amyloidosis, multi-infarct dementia, dementia pugilistica or Down syndrome.
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Aβ/tau aggregation-IN-1
0 ImagesAβ/tau aggregation-IN-1 is a potent Aβ1-42 β-sheets formation and tau aggregation inhibitor. The KD values of Aβ/tau aggregation-IN-1 with Aβ1-42 and tau are 160 μM and 337 μM, respectively. Aβ/tau aggregation-IN-1 can permeate the blood-brain barrier.
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Aβ aggregation-IN-1
0 ImagesAβ aggregation-IN-1 (Compound 1b) is a β-amyloid aggregation inhibitor/depolymerizer, with IC50 values of 3.92 μM and 7.19 μM, respectively. Aβ aggregation-IN-1 inhibits the activation of preformed β-amyloid fibrils, reactive oxygen species (ROS) and Caspase-3. Aβ aggregation-IN-1 can be used in research related to Alzheimer's disease.
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Quinovic acid
0 ImagesQuinovic acid is triterpene. Quinovic acid can ameliorate the Amyloid-β burden, p53 expression and cholesterol accumulation by deterring the oxidative stress through upregulating the Nrf2/HO-1 pathway. Quinovic acid can induce cancer cells apoptosis by upregulating death receptor 5 (DR5). Quinovic acid can be used for the researches of cancer, inflammation, metabolic and neurological disease, such as lung cancer and Alzheimer’s disease (AD).
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L-Norvaline-d5
0 ImagesL-Norvaline-d5 is the deuterium labeled L-Norvaline. L-Norvaline is the inhibitor for arginase, that promotes the production of NO, reduces oxidative stress, improves insulin resistance, and exhibits antioxidant and anti-hyperglycemic effects. L-Norvaline can be used in research of Alzheimer’s disease.
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Glutaminyl Cyclase Inhibitor 1
0 ImagesGlutaminyl Cyclase Inhibitor 1 is a glutaminyl cyclase inhibitor with an IC50 of 0.5 μM.
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h-FTAA
0 Imagesh-FTAA is a luminescent conjugated oligothiophene (LCO) probe. h-FTAA can selectively bind to amyloid protein aggregates (such as Aβ plaques) and distinguish different conformations of the protein aggregates through changes in fluorescence signals. h-FTAA significantly reduces the neurotoxicity of Aβ1-42 and the Arctic mutant Aβ (AβArc), thereby protecting SH-SY5Y neuroblastoma cells. h-FTAA can be used to dynamically track the formation and maturation process of Aβ plaques.
![[Ala28]-β Amyloid(25-35) TFA](https://file.medchemexpress.com/product_pic/hy-p5968a.gif "Click to View [Ala28]-β Amyloid(25-35) TFA Product Detail")
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β-Amyloid (1-37) (human)
0 Imagesβ-Amyloid (1-37) (human) correlates moderately with Mini-Mental State Examination (MMSE) scores in Alzheimer disease. β-Amyloid (1-37) (human) possesses an added diagnostic value.
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Aβ/tau aggregation-IN-3
0 ImagesAβ/tau aggregation-IN-3 is a potent amyloid protein aggregation inhibitor with an IC50 of 0.85 μM by Aβ-Thioflavin T (Aβ-ThT) functional aggregation assay. Aβ/tau aggregation-IN-3 has anti-amyloid activity.
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10-Undecenoic acid (Standard)
0 Images10-Undecenoic acid (Standard) is the analytical standard of 10-Undecenoic acid. This product is intended for research and analytical applications. 10-Undecenoic acid (Undecylenic acid) is an antifungal agent. 10-Undecenoic acid inhibits Aβ oligomerization, scavenges ROS and inhibits μ-calpain activity. 10-Undecenoic acid has neuroprotective effects. 10-Undecenoic acid has anticancer effects on a variety of tumors. 10-Undecenoic acid inhibits C. albicans biofilm formation and MRSA infection. 10-Undecenoic acid inhibits quorum sensing signals of Bacillus subtilis and Pseudomonas aeruginosa.
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Withanoside IV
0 ImagesWithanoside IV is an orally active, blood-brain barrier-permeable withanolide derivative. Withanoside IV specifically binds to the Sudlow I site of HSA, induces secondary structural changes in HSA, and forms stable HSA complexes. Withanoside IV inhibits the enzymatic activity of COX-2. Withanoside IV induces axonal regeneration, peripheral nervous system myelination and increased axonal density in spinal cord tissue, reduces reactive gliosis-related changes, and improves hindlimb motor function. Withanoside IV binds to amyloid-β 1-42 to inhibit its aggregation, induces neurite outgrowth and synapse reconstruction, repairs damaged axons and dendrites, enhances mitochondrial biogenesis, exerts neuroprotective effects via the BDNF and SIRT1 signaling pathways, reduces ROS production and neuronal apoptosis, and ameliorates memory deficits. Withanoside IV inhibits the activity of the SARS-CoV-2 main protease. Withanoside IV can be used in research related to spinal cord injury, Alzheimer's disease, and coronavirus disease 2019 (COVID-19).
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Withanoside V
0 ImagesWithanoside V is a blood-brain barrier-permeable withanolide derivative. Withanoside V binds strongly to Sudlow I (domain IIA) of human serum albumin (HSA) to form a stable complex and alter the secondary structure of albumin, thereby increasing helix content and reducing β-sheet and random coil. Withanoside V binds to Aβ (1-42) to block the interaction between monomers and subsequent aggregation. Withanoside V inhibits the viability of neuroblastoma cells, reduces the number of apoptotic cells induced by Aβ (1-42), and decreases ROS production. Withanoside V inhibits SARS-CoV-2 Mpro. Withanoside V can be used for research on Alzheimer's disease and coronavirus disease 2019.
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Amyloid β-Protein (3-42) TFA
0 ImagesCat. No.: HY-P4886AAmyloid β-Protein (3-42) TFA is a precursor of Pyr peptide. Pyroglutamic acid-modified Aβ (pEAβ) (3-42) is the core of the amyloid plaque in Alzheimer's disease. pEAβ (3-42) accelerates the aggregation of Aβ(1-42), while Aβ(1-42) significantly slows down the primary and secondary nucleation of pEAβ(3-42).
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Rolipram (Standard)
0 ImagesSynonyms: (R,S)-Rolipram (Standard); (±)-Rolipram (Standard); ZK 62711 (Standard)Rolipram (Standard) is the analytical standard of Rolipram (HY-16900). This product is intended for research and analytical applications. Rolipram is a PDE4 inhibitor, with blood-brain barrier permeability, that reverses β-amyloid-induced learning and memory impairment in rats. Rolipram elevates intracellular cAMP and clevels and regulates the cAMP/CREB signaling pathway, thereby alleviating neuroinflammation and apoptotic responses. Rolipram promotes neuronal differentiation of human bone marrow mesenchymal stem cells and inhibits Methamphetamine- and morphine-induced hyperlocomotion in mice. Rolipram also reduces the viability of glioblastoma stem-like cells and enhances Bevacizumab (HY-P9906)-induced cell death. Rolipram inhibits the expression of proinflammatory cytokines and enhances central noradrenergic transmission. Rolipram is mainly used in studies related to various central nervous system diseases including Alzheimer's disease, major depressive disorder, glioblastoma multiforme, and multiple sclerosis.
