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Natural Compounds in Neurological Diseases

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Natural Products Chemistry".

Deadline for manuscript submissions: closed (31 August 2024) | Viewed by 3796

Special Issue Editors


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Guest Editor
Institute of Agricultural and Environmental Research and Technology (IITAA), University of the Azores, Angra do Heroísmo, Portugal
Interests: biological chemistry; antioxidants; anti-inflammatories; bioactive compounds; polyphenols
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Laboratório de Farmacologia e Neurobiologia/UMIB, Universidade do Porto, Porto, Portugal
Interests: neurophysiology; neuroimmunology; myasthenia gravis; invasive bacterial diseases; purines

Special Issue Information

Dear Colleagues,

Neurological diseases or disorders are diseases of the central and peripheral nervous system. The WHO recognizes stroke, migraine, dementia, meningitis, and epilepsy as the five largest contributors. Still, the burden of neurological diseases is widely unrecognized. In recent years, a lot of scientific proof has been collected pointing out that the immune system interacts with most neurological disorders. Neuroinflammation comprises inflammation-like processes inside the parenchyma of the central nervous system. Inflammatory responses mediated by brain cells, microglia, and astrocytes, may lead to neuronal damage contributing to the development of neurological morbidities. Therapeutic approaches aiming to modulate microglia and astrocyte activation may be beneficial to mitigate the progression of neurological diseases. Natural products offer an opportunity to discover new compounds that can be converted into drugs given their chemical structure diversity.

This Special Issue will address some of the main current research on the role of natural compounds in neurological diseases, with particular interest in the ones that explore the inflammatory-mediated responses.

Dr. Daniela Ribeiro
Dr. Laura Oliveira
Guest Editors

Manuscript Submission Information

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Keywords

  • neurological disorders
  • neuroinflammation
  • inflammatory mediators
  • immune system
  • infection
  • natural products

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Published Papers (2 papers)

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Research

14 pages, 2663 KiB  
Article
Computational Studies to Understand the Neuroprotective Mechanism of Action Basil Compounds
by Varinder Singh, Somdutt Mujwar, Manjinder Singh, Tanveer Singh and Sheikh F. Ahmad
Molecules 2023, 28(20), 7005; https://doi.org/10.3390/molecules28207005 - 10 Oct 2023
Cited by 5 | Viewed by 1617
Abstract
Neurodegenerative diseases, such as Alzheimer’s and Parkinson’s, pose a significant global health challenge, emphasizing the need for novel neuroprotective agents. Basil (Ocimum spp.) has been recognized for its therapeutic potential, and numerous studies have reported neuroprotective effects. In this manuscript, we present [...] Read more.
Neurodegenerative diseases, such as Alzheimer’s and Parkinson’s, pose a significant global health challenge, emphasizing the need for novel neuroprotective agents. Basil (Ocimum spp.) has been recognized for its therapeutic potential, and numerous studies have reported neuroprotective effects. In this manuscript, we present a computational protocol to extricate the underlying mechanism of action of basil compounds in neuroprotective effects. Molecular docking-based investigation of the chemical interactions between selected bioactive compounds from basil and key neuroprotective targets, including AChE, GSK3β, γ-secretase, and sirtuin2. Our results demonstrate that basil compound myricerone caffeoyl ester possesses a high affinity of −10.01 and −8.85 kcal/mol against GSK3β and γ-secretase, respectively, indicating their potential in modulating various neurobiological processes. Additionally, molecular dynamics simulations were performed to explore the protein–ligand complexes’ stability and to analyze the bound basil compounds’ dynamic behavior. This comprehensive computational investigation enlightens the putative mechanistic basis for the neuroprotective effects of basil compounds, providing a rationale for their therapeutic use in neurodegenerative disorders after further experimental validation. Full article
(This article belongs to the Special Issue Natural Compounds in Neurological Diseases)
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11 pages, 2900 KiB  
Communication
Dried Loquat Fruit Extract Containing Chlorogenic Acid Prevents Depressive-like Behaviors Induced by Repeated Corticosteroid Injections in Mice
by Dong Wook Lim, Guijae Yoo and Changho Lee
Molecules 2023, 28(14), 5612; https://doi.org/10.3390/molecules28145612 - 24 Jul 2023
Cited by 3 | Viewed by 1498
Abstract
Eriobotrya japonica (loquat tree) has been used in traditional medicine to treat respiratory ailments, inflammation, and skin diseases; however, its potential antidepressant-like effects have not been extensively investigated. In this study, we evaluated the antidepressant-like effects of E. japonica fruit extract (EJFE) in [...] Read more.
Eriobotrya japonica (loquat tree) has been used in traditional medicine to treat respiratory ailments, inflammation, and skin diseases; however, its potential antidepressant-like effects have not been extensively investigated. In this study, we evaluated the antidepressant-like effects of E. japonica fruit extract (EJFE) in a mouse model of corticosterone (CORT)-induced depression. An HPLC analysis revealed that chlorogenic acid (CGA) is the major compound in EJFE. Male ICR mice (5weeks-old) were injected with CORT (40 mg/kg, intraperitoneally) once daily for 21 days to induce depressive-like behaviors. Various behavioral tests, including the open field test, rotarod test, elevated plus maze (EPM), passive avoidance test (PAT), tail suspension test (TST), and forced swim test (FST), were conducted 1 h after the oral administration of EJFE at different doses (30, 100, and 300 mg/kg) and CGA (30 mg/kg). High-dose EJFE and CGA significantly alleviated CORT-induced depressive-like behaviors, as indicated by the reduced immobility times in the TST and FST. A decrease in the step-through latency time in the PAT, without an effect on locomotor activity, suggested an improvement in cognitive function. Moreover, EJFE- and CGA-treated mice exhibited significantly reduced anxiety-like behaviors in the EPM. Our results imply the promising potential of EJFE containing CGA as a therapeutic candidate for depression. Full article
(This article belongs to the Special Issue Natural Compounds in Neurological Diseases)
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