Utilisation of the OliveNet™ Library to investigate phenolic compounds using molecular modelling studies in the context of Alzheimer’s disease

Liang, Julia; Pitsillou, Eleni; Man, Abella Y.L.; Madzima, Sibonginkosi; Bresnehan, Sarah M.; Nakai, Michael; Hung, Andrew; Karagiannis, Tom C.

doi:10.1016/j.compbiolchem.2020.107271

Cited by 5 publications

(3 citation statements)

References 82 publications

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“…In the same model, treatment with the aforementioned compounds and commercial preparation of OL exerted a stronger protection against Aβ42-, Cu-Aβ42-, or L-DOPA-Aβ42-induced neurotoxicity, manifesting an increase in cell viability [40]. In accordance with a computational binding affinity test, the neurotoxicity reduction mentioned above may be attributed to the ability of OLE, HT, LU, VB, and QUE, as well as their derivatives, to strongly bind to the hairpin-turn of the Aβ 1-40 and Aβ 1-42 monomers and the subsequent reduction in Aβ fibrillization [41]. On the other hand, β-secretase site-1 (BACE-1) is involved in the generation of the Aβ aggregation since it participates in the amyloidogenic processing of the amyloid precursor protein (APP).…”

Section: Effects On Aβ Aggregationmentioning

confidence: 65%

Molecular Mechanisms of the Protective Effects of Olive Leaf Polyphenols against Alzheimer’s Disease

Romero-Márquez

Forbes-Hernández

Navarro-Hortal

et al. 2023

IJMS

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Alzheimer’s Disease (AD) is the cause of around 60–70% of global cases of dementia and approximately 50 million people have been reported to suffer this disease worldwide. The leaves of olive trees (Olea europaea) are the most abundant by-products of the olive grove industry. These by-products have been highlighted due to the wide variety of bioactive compounds such as oleuropein (OLE) and hydroxytyrosol (HT) with demonstrated medicinal properties to fight AD. In particular, the olive leaf (OL), OLE, and HT reduced not only amyloid-β formation but also neurofibrillary tangles formation through amyloid protein precursor processing modulation. Although the isolated olive phytochemicals exerted lower cholinesterase inhibitory activity, OL demonstrated high inhibitory activity in the cholinergic tests evaluated. The mechanisms underlying these protective effects may be associated with decreased neuroinflammation and oxidative stress via NF-κB and Nrf2 modulation, respectively. Despite the limited research, evidence indicates that OL consumption promotes autophagy and restores loss of proteostasis, which was reflected in lower toxic protein aggregation in AD models. Therefore, olive phytochemicals may be a promising tool as an adjuvant in the treatment of AD.

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Section: Effects On Aβ Aggregationmentioning

confidence: 65%

Molecular Mechanisms of the Protective Effects of Olive Leaf Polyphenols against Alzheimer’s Disease

Romero-Márquez

Forbes-Hernández

Navarro-Hortal

et al. 2023

IJMS

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show abstract

“…The study found that phenolic ligands bind strongly to the hairpin turn of Aβ1‐40 and Aβ1‐42 monomers and also identified binding sites in the tau fibril protein structures. New lead compounds, including cyanidin‐3‐ O ‐rutinoside, luteolin‐4′‐ O ‐rutinoside, luteolin‐7,4‐ O ‐diglucoside, oleuricine A, isorhoifolin, and luteolin‐7‐ O ‐rutinoside, were predicted, which could lead to the development and evaluation of novel compounds with potential efficacy against Alzheimer's disease [28] . It has been reported that hesperidin had useful effects on serum TNF‐ α , IL‐6, and hs‐CRP in the supplemented group.…”

Section: Discussionmentioning

confidence: 99%

“…New lead compounds, including cyanidin-3-O-rutinoside, luteolin-4'-O-rutinoside, luteolin-7,4-O-diglucoside, oleuricine A, isorhoifolin, and luteolin-7-O-rutinoside, were predicted, which could lead to the development and evaluation of novel compounds with potential efficacy against Alzheimer's disease. [28] It has been reported that hesperidin had useful effects on serum TNFα, IL-6, and hs-CRP in the supplemented group. Obtaining results assists the anti-inflammatory effects of hesperidin in DM.…”

Section: Quantitative Analysis Of Secondary Metabolitesmentioning

confidence: 94%

Anatomical, Morphological, and Chemical Characterizations and Biological Activities of Gagea taurica Steven (Liliaceae): A New Record for the Turkish Flora

Yuca,

Karakaya,

Ekşi

et al. 2023

Chemistry & Biodiversity

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Gagea genus, which is native to the Mediterranean and Black Sea regions, has attracted significant attention due to its biodiversity and potential health benefits. In this study, the biochemical composition and biological activities of methanol extracts from various parts of G. taurica were investigated, along with their anatomical and morphological characteristics. The best antimicrobial activity was found to be MeOH extracts of corm and leaf against several Candida strains with MIC=640 μg/mL. The highest level of phenolics together with significant results of antioxidant activities were observed in flowers extracts. The α‐amylase inhibition assay results showed that the highest inhibition percentage was observed with acarbose (59 %), followed by leaf extract (43 %). Leaf exhibited the most effective inhibitory activity in AChE inhibition assay, whereas flower demonstrated the most significant inhibitory activity in BChE inhibition assay. Hesperidin was found as 1621.0001 ng/ml value in flower extract and 283.9339 ng/ml value leaf.

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Phytochemical screening, biological evaluation, anatomical, and morphological investigation of Ferula tingitana L. (Apiaceae)

Karakaya,

Yuca,

Yılmaz

et al. 2023

Protoplasma

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Utilisation of the OliveNet™ Library to investigate phenolic compounds using molecular modelling studies in the context of Alzheimer’s disease

Cited by 5 publications

References 82 publications

Molecular Mechanisms of the Protective Effects of Olive Leaf Polyphenols against Alzheimer’s Disease

Molecular Mechanisms of the Protective Effects of Olive Leaf Polyphenols against Alzheimer’s Disease

Anatomical, Morphological, and Chemical Characterizations and Biological Activities of Gagea taurica Steven (Liliaceae): A New Record for the Turkish Flora

Phytochemical screening, biological evaluation, anatomical, and morphological investigation of Ferula tingitana L. (Apiaceae)

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