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Adeyemo SA, Ajao MY, Ogundeyi KJ, Femi-Akinlosotu O, Bakre AG. Ameliorative potential of ethanol extract of Calyptrochilum emarginatum leaves on scopolamine-induced amnesia in male swiss mice. JOURNAL OF ETHNOPHARMACOLOGY 2025; 336:118731. [PMID: 39182698 DOI: 10.1016/j.jep.2024.118731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2024] [Revised: 08/17/2024] [Accepted: 08/21/2024] [Indexed: 08/27/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Calyptrochilum emarginatum (Afzel. Ex Sw.) Schltr. (Orchidaceae) is a traditional medicinal plant known for its antimicrobial properties and efficacy in managing convulsive fever and menstrual disorders and addressing conditions such as malaria, tuberculosis, and cough. AIM OF THE STUDY The study aims to examine the memory-enhancing and neuroprotective properties of ethanol extract of Calyptrochilum emarginatum leaves (EECEL) in scopolamine-induced amnesia mice model. MATERIALS AND METHODS Forty-two male mice were divided into six groups (n = 7). Group 1 served as control, administered distilled water (10 mL/kg, p. o), group 2 received scopolamine only (3 mg/kg, i. p.), groups 3 to 6 received pretreatments of EECEL (50, 100, and 200 mg/kg, p. o.) and donepezil (1 mg/kg, p. o.) 30 min before scopolamine (3 mg/kg), for seven days. Following treatments, behavioral (learning and memory) assessments were carried out, while biochemical (acetylcholinesterase activity, oxidative stress markers, inflammatory cytokines markers) and histological evaluations were done after euthanasia. RESULTS Scopolamine significantly impaired spatial, long term and recognition memory. Nevertheless, administration of EECEL (50, 100, and 200 mg/kg orally) enhanced memory function in mice, as observed in the Y maze [F (5, 30) = 20.23, p < 0.0001], Morris water maze [F (10, 90) = 3.105, p = 0.0019; [F (5, 30) = 21.13, p < 0.0001]], and novel object recognition tasks [F (5, 30) = 37.22, p < 0.0001)]. Scopolamine-treated mice exhibited significant dysfunction in the cholinergic system, as evidenced by elevated AChE activity [0.099 ± 0.005 vs. 0.063 ± 0.004 mol/min/g] with an elevation in oxidative stress. On the other hand, administration of EECEL counteracted these consequences by reducing AChE activity, mitigating oxidative damage, reducing pro-inflammatory cytokines, and preventing degeneration of neurons. CONCLUSION The results demonstrated that EECEL effectively mitigates scopolamine-induced memory impairment via an oxido-inflammatory mechanism and modulation of the central cholinergic system.
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Affiliation(s)
- Stella Afolakemi Adeyemo
- Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sciences, University of Ibadan, Ibadan, Oyo-State, Nigeria.
| | - Mutiu Yombo Ajao
- Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sciences, University of Ibadan, Ibadan, Oyo-State, Nigeria.
| | - Kehinde Joshua Ogundeyi
- Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sciences, University of Ibadan, Ibadan, Oyo-State, Nigeria.
| | - Omowunmi Femi-Akinlosotu
- Developmental Neurobiology and Forensic Anatomy Unit, Department of Anatomy, University of Ibadan, Ibadan, Nigeria.
| | - Adewale Ganiyu Bakre
- Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sciences, University of Ibadan, Ibadan, Oyo-State, Nigeria.
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Yang Y, Tong M, de la Monte SM. Early-Stage Moderate Alcohol Feeding Dysregulates Insulin-Related Metabolic Hormone Expression in the Brain: Potential Links to Neurodegeneration Including Alzheimer's Disease. J Alzheimers Dis Rep 2024; 8:1211-1228. [PMID: 39247872 PMCID: PMC11380283 DOI: 10.3233/adr-240026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 08/01/2024] [Indexed: 09/10/2024] Open
Abstract
Background Alzheimer's disease (AD), one of the most prevalent causes of dementia, is mainly sporadic in occurrence but driven by aging and other cofactors. Studies suggest that excessive alcohol consumption may increase AD risk. Objective Our study examined the degree to which short-term moderate ethanol exposure leads to molecular pathological changes of AD-type neurodegeneration. Methods Long Evans male and female rats were fed for 2 weeks with isocaloric liquid diets containing 24% or 0% caloric ethanol (n = 8/group). The frontal lobes were used to measure immunoreactivity to AD biomarkers, insulin-related endocrine metabolic molecules, and proinflammatory cytokines/chemokines by duplex or multiplex enzyme-linked immunosorbent assays (ELISAs). Results Ethanol significantly increased frontal lobe levels of phospho-tau, but reduced Aβ, ghrelin, glucagon, leptin, PAI, IL-2, and IFN-γ. Conclusions Short-term effects of chronic ethanol feeding produced neuroendocrine molecular pathologic changes reflective of metabolic dysregulation, together with abnormalities that likely contribute to impairments in neuroplasticity. The findings suggest that chronic alcohol consumption rapidly establishes a platform for impairments in energy metabolism that occur in both the early stages of AD and alcohol-related brain degeneration.
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Affiliation(s)
- Yiwen Yang
- Molecular Pharmacology, Physiology and Biotechnology Graduate Program, Brown University, Providence, RI, USA
| | - Ming Tong
- Department of Medicine, Rhode Island Hospital, Lifespan Academic Institutions, and the Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Suzanne M de la Monte
- Department of Medicine, Rhode Island Hospital, Lifespan Academic Institutions, and the Warren Alpert Medical School of Brown University, Providence, RI, USA
- Department of Pathology and Laboratory Medicine, Rhode Island Hospital, Lifespan Academic Institutions, the Providence VA Medical Center, and the Warren Alpert Medical School of Brown University, Providence, RI, USA
- Departments of Neurology and Neurosurgery, Rhode Island Hospital, and the Warren Alpert Medical School of Brown University, Providence, RI, USA
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Zhao X, Hu Q, Wang X, Li C, Chen X, Zhao D, Qiu Y, Xu H, Wang J, Ren L, Zhang N, Li S, Gong P, Hou Y. Dual-target inhibitors based on acetylcholinesterase: Novel agents for Alzheimer's disease. Eur J Med Chem 2024; 279:116810. [PMID: 39243456 DOI: 10.1016/j.ejmech.2024.116810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2024] [Revised: 08/22/2024] [Accepted: 08/28/2024] [Indexed: 09/09/2024]
Abstract
Alzheimer's disease (AD) is the most common form of dementia among the elderly, accounting for 60 %-70 % of cases. At present, the pathogenesis of this condition remains unclear, but the hydrolysis of acetylcholine (ACh) is thought to play a role. Acetylcholinesterase (AChE) can break down ACh transmission from the presynaptic membrane and stop neurotransmitters' excitatory effect on the postsynaptic membrane, which plays a key role in nerve conduction. Acetylcholinesterase inhibitors (AChEIs) can delay the hydrolysis of acetylcholine (ACh), which represents a key strategy for treating AD. Due to its complex etiology, AD has proven challenging to treat. Various inhibitors and antagonists targeting key enzymes and proteins implicated in the disease's pathogenesis have been explored as potential therapeutic agents. These include Glycogen Synthase Kinase 3β (GSK-3β) inhibitors, β-site APP Cleaving Enzyme (BACE-1) inhibitors, Monoamine Oxidase (MAO) inhibitors, Phosphodiesterase inhibitors (PDEs), N-methyl--aspartic Acid (NMDA) antagonists, Histamine 3 receptor antagonists (H3R), Serotonin receptor subtype 4 (5-HT4R) antagonists, Sigma1 receptor antagonists (S1R) and soluble Epoxide Hydrolase (sEH) inhibitors. The drug development strategy of multi-target-directed ligands (MTDLs) offers unique advantages in the treatment of complex diseases. On the one hand, it can synergistically enhance the therapeutic efficacy of single-target drugs. On the other hand, it can also reduce the side effects. In this review, we discuss the design strategy of dual inhibitors based on acetylcholinesterase and the structure-activity relationship of these drugs.
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Affiliation(s)
- Xingyi Zhao
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 105 Wenhua Road, Shenhe District, Shenyang, 110016, China
| | - Qiaoguan Hu
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 105 Wenhua Road, Shenhe District, Shenyang, 110016, China
| | - Xiaoqian Wang
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 105 Wenhua Road, Shenhe District, Shenyang, 110016, China
| | - Chunting Li
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 105 Wenhua Road, Shenhe District, Shenyang, 110016, China
| | - Xiao Chen
- Yangtze River Pharmaceutical Group Jiangsu Haici Biological Pharmaceutical Co., Ltd. 8 Taizhen Road, Medical New & Hi-tech Industrial Development Zone, Taizhou City, Jiangsu Province, 225321, China
| | - Dong Zhao
- Yangtze River Pharmaceutical Group Jiangsu Haici Biological Pharmaceutical Co., Ltd. 8 Taizhen Road, Medical New & Hi-tech Industrial Development Zone, Taizhou City, Jiangsu Province, 225321, China
| | - Yue Qiu
- Yangtze River Pharmaceutical Group Jiangsu Haici Biological Pharmaceutical Co., Ltd. 8 Taizhen Road, Medical New & Hi-tech Industrial Development Zone, Taizhou City, Jiangsu Province, 225321, China
| | - Haoyu Xu
- Yangtze River Pharmaceutical (Group) CO., Ltd. NO.1 South Yangtze River Road, Taizhou City, Jiangsu Province, 225321, China
| | - Jiaqi Wang
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 105 Wenhua Road, Shenhe District, Shenyang, 110016, China
| | - Le Ren
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 105 Wenhua Road, Shenhe District, Shenyang, 110016, China
| | - Na Zhang
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 105 Wenhua Road, Shenhe District, Shenyang, 110016, China
| | - Shuang Li
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 105 Wenhua Road, Shenhe District, Shenyang, 110016, China
| | - Ping Gong
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 105 Wenhua Road, Shenhe District, Shenyang, 110016, China.
| | - Yunlei Hou
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, 105 Wenhua Road, Shenhe District, Shenyang, 110016, China.
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Khamies SM, El-Yamany MF, Ibrahim SM. Canagliflozin Mitigated Cognitive Impairment in Streptozotocin-Induced Sporadic Alzheimer's Disease in Mice: Role of AMPK/SIRT-1 Signaling Pathway in Modulating Neuroinflammation. J Neuroimmune Pharmacol 2024; 19:39. [PMID: 39073453 DOI: 10.1007/s11481-024-10140-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Accepted: 07/14/2024] [Indexed: 07/30/2024]
Abstract
Sporadic Alzheimer's disease (SAD) represents a major health concern especially among elderly. Noteworthy, neuroinflammation and oxidative stress are highly implicated in AD pathogenesis resulting in enhanced disease progression. Moreover, most of the available anti-Alzheimer drugs have several adverse effects with variable efficacy, therefore new strategies, including agents with anti-inflammatory and antioxidant effects, are encouraged. Along these lines, canagliflozin (CAN), with its anti-inflammatory and anti-apoptotic activities, presents a promising candidate for AD treatment. Therefore, this study aimed to evaluate the therapeutic potential of CAN via regulation of AMPK/SIRT-1/BDNF/GSK-3β signaling pathway in SAD. SAD model was induced by intracerebroventricular streptozotocin injection (ICV-STZ;3 mg/kg, once), while CAN was administered (10 mg/kg/day, orally) to STZ-treated mice for 21 days. Behavioral tests, novel object recognition (NOR), Y-Maze, and Morris Water Maze (MWM) tests, histopathological examination, total adenosine monophosphate-activated protein kinase (T-AMPK) expression, p-AMPK, and silent information regulator-1 (SIRT-1) were evaluated. Furthermore, brain-derived neurotrophic factor (BDNF), glycogen synthase kinase-3β (GSK-3β), acetylcholinesterase (AChE), Tau protein, insulin-degrading enzyme (IDE), nuclear factor erythroid-2 (Nrf-2), interleukin-6 (IL-6), nuclear factor kappa-B-p65 (NFκB-p65), beta-site APP cleaving enzyme 1 (BACE-1), and amyloid beta (Aβ) plaque were assessed. CAN restored STZ-induced cognitive deficits, confirmed by improved behavioral tests and histopathological examination. Besides, CAN halted STZ-induced neurotoxicity through activation of p-AMPK/SIRT-1/BDNF pathway, subsequently reduction of GSK-3β, Tau protein, AChE, NFκB-p65, IL-6, BACE-1, and Aβ plaque associated with increased IDE and Nrf-2. Consequentially, our findings assumed that CAN, via targeting p-AMPK/SIRT-1 pathway, combated neuroinflammation and oxidative stress in STZ-induced AD. Thus, this study highlighted the promising effect of CAN for treating AD.
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Affiliation(s)
- Sara M Khamies
- Faculty of Pharmacy, Department of Pharmacology and Toxicology, Menoufia University, Menoufia, 32511, Egypt
| | - Mohammed F El-Yamany
- Faculty of Pharmacy, Department of Pharmacology and Toxicology, Cairo University, ElKasr Elaini Street, Cairo, 11562, Egypt
| | - Sherehan M Ibrahim
- Faculty of Pharmacy, Department of Pharmacology and Toxicology, Cairo University, ElKasr Elaini Street, Cairo, 11562, Egypt.
- Faculty of Pharmacy, Department of Pharmacology and Toxicology, Modern University for Technology and Information, Cairo, Egypt.
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Shaker SE, Fayed DB, Shawky H, Farrag EK. Co-administration of Ceratonia siliqua extract nanoparticles promotes the oral bioavailability and neurotherapeutic efficacy of donepezil in a dementia model. J Pharm Pharmacol 2024:rgae094. [PMID: 39046816 DOI: 10.1093/jpp/rgae094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 06/24/2024] [Indexed: 07/27/2024]
Abstract
BACKGROUND This study aimed to assess the herb-drug interactions between crude/silver nanoparticle (SNP)-loaded carob extract (Car, NCar, respectively) and donepezil-HCl (DPZ) and their impact on neurotherapeutic outcomes in a dementia model. METHODS Carob pods were subjected to ethanol extraction, and their phytoconstituents were chromatographically analysed. SNP-loaded extract was synthesized and characterized, and dementia-like symptoms were induced in Wistar rats by repeated dosing with 175 mg/kg AlCl3 for 60 days, after which the animals were treated with Car, NCar, DPZ, and combinations of Car/NCar-DPZ for 30 days. The effect of carob formulations on DPZ bioavailability was in-silico profiled and the herb-drug interactions were mathematically assessed as combination indices. RESULTS Different formulations significantly improved cognitive/spatial memory functions, restored dysregulated brain redox and cholinergic functions, and markedly inhibited cholinesterase, as reflected by the reduction/absence of amyloid plaques and neurofibrillary tangles. In silico profiling of the major phytoconstituents revealed their non-P-glycoprotein substrate nature and CYP3A4, 2C19, and 2C9 inhibition, which might have improved the oral bioavailability of DPZ. The combination index calculations revealed strong synergy between DPZ and both carob formulations, with the strongest effect exhibited by the DPZ/NCar combination. CONCLUSION The co-administration of carob extract/SNPs represents a promising approach for enhancing the neurotherapeutic efficacy of DPZ.
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Affiliation(s)
- Sylvia E Shaker
- Therapeutic Chemistry Department, Pharmaceutical Industries and Drug Research Institute, National Research Centre, Dokki 12622, Cairo, Egypt
| | - Dalia B Fayed
- Therapeutic Chemistry Department, Pharmaceutical Industries and Drug Research Institute, National Research Centre, Dokki 12622, Cairo, Egypt
| | - Heba Shawky
- Therapeutic Chemistry Department, Pharmaceutical Industries and Drug Research Institute, National Research Centre, Dokki 12622, Cairo, Egypt
| | - Ebtehal K Farrag
- Therapeutic Chemistry Department, Pharmaceutical Industries and Drug Research Institute, National Research Centre, Dokki 12622, Cairo, Egypt
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Attia FM, Kassab RB, Ahmed-Farid OA, Abdel Moneim AE, El-Yamany NA. Zinc Oxide Nanoparticles Attenuated Neurochemical and Histopathological Alterations Associated with Aluminium Chloride Intoxication in Rats. Biol Trace Elem Res 2024:10.1007/s12011-024-04292-4. [PMID: 38963645 DOI: 10.1007/s12011-024-04292-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 06/25/2024] [Indexed: 07/05/2024]
Abstract
The present investigation explored the potential neuroprotective role of zinc oxide nanoparticles (ZnONPs) on aluminum chloride (AlCl3)-mediated Alzheimer's disease (AD)-like symptoms. Rats were distributed into four treatment groups equally: control, ZnONPs (4 mg/kg b.wt.), AlCl3 (100 mg/kg b.wt.), and ZnONPs + AlCl3 groups. Rats were treated for 42 consecutive days. ZnONPs injection into AlCl3-treated rats suppressed the development of oxidative challenge in the cortical and hippocampal tissues, as demonstrated by the decreased neuronal pro-oxidants (malondialdehyde and nitric oxide), and the increased glutathione and catalase levels. Additionally, ZnONPs injection showed anti-inflammatory potency in response to AlCl3 by decreasing levels of tumor necrosis factor-α and interleukin-1β. Moreover, pretreatment with ZnONPs prevented neuronal cell loss by decreasing the level of pro-apoptotic caspase-3 and enhancing the anti-apoptotic B cell lymphoma 2. Furthermore, ZnONPs ameliorated the disturbed acetylcholinesterase activity, monoamines (norepinephrine, dopamine, and serotonin), excitatory (glutamic and aspartic acids), and inhibitory amino acids (GABA and glycine) in response to AlCl3 exposure. These findings indicate that ZnONPs may have the potential as an alternative therapy to minimize or prevent the neurological deficits in AD model by exhibiting antioxidative, anti-inflammation, anti-apoptosis, and neuromodulatory effects.
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Affiliation(s)
- Fatma M Attia
- Zoology and Entomology Department, Faculty of Science, Helwan University, Cairo, Egypt
| | - Rami B Kassab
- Zoology and Entomology Department, Faculty of Science, Helwan University, Cairo, Egypt.
- Biology Department, Faculty of Science and Arts, Almakhwah, Al Baha University, Al Baha, Saudi Arabia.
| | | | - Ahmed E Abdel Moneim
- Zoology and Entomology Department, Faculty of Science, Helwan University, Cairo, Egypt
| | - Nabil A El-Yamany
- Zoology and Entomology Department, Faculty of Science, Helwan University, Cairo, Egypt
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Pereira ME, Lima LS, Souza JV, de Souza da Costa N, da Silva JF, Guiloski IC, Irioda AC, Oliveira CS. Evaluation of the Neuroprotective Effect of Organic Selenium Compounds: An in Vitro Model of Alzheimer's Disease. Biol Trace Elem Res 2024; 202:2954-2965. [PMID: 37803188 DOI: 10.1007/s12011-023-03893-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 09/26/2023] [Indexed: 10/08/2023]
Abstract
Selenium (Se) is an essential trace element for human health and plays an important role in the development and maintenance of central nervous system functions. Se deficiency has been associated with cognitive decline and increased oxidative stress. The increase in oxidative stress is one of the hypotheses for the emergence and worsening of neurodegenerative diseases, such as Alzheimer's disease (AD). To investigate the neuroprotective effects of organic Se compounds in human neuroblastoma cells (SH-SY5Y) differentiated into cholinergic neurons-like. The SH-SY5Y cells were differentiated into cholinergic neuron-like with retinoic acid (RA) and brain-derived neurotrophic factor (BDNF). AD was mimicked exposing the cells to okadaic acid (OA) and beta-amyloid protein (Aβ). The neuroprotective effect of organic Se compounds, selenomethionine (SeMet) and Ebselen, was evaluated through cell viability tests, acetylcholinesterase and antioxidant enzyme activities, and detection of reactive oxygen species (ROS). None of the SeMet concentrations tested protected against the toxic effect of OA + Aβ. On the other hand, previous exposure to 0.1 and 1 µM Ebselen protected cells from the toxic effect of OA + Aβ. Cell differentiation induced by RA and BDNF exposure was effective, showing characteristics of neuronal cells, and pointing to a promising model of AD. Ebselen showed a protective effect, but more studies are needed to identify the mechanism of action.
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Affiliation(s)
- Meire Ellen Pereira
- Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba, PR, Brazil
- Faculdades Pequeno Príncipe, Curitiba, PR, Brazil
| | - Luiza Siqueira Lima
- Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba, PR, Brazil
- Faculdades Pequeno Príncipe, Curitiba, PR, Brazil
| | - Júlia Vicentin Souza
- Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba, PR, Brazil
- Faculdades Pequeno Príncipe, Curitiba, PR, Brazil
| | - Nayara de Souza da Costa
- Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba, PR, Brazil
- Faculdades Pequeno Príncipe, Curitiba, PR, Brazil
| | - Juliana Ferreira da Silva
- Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba, PR, Brazil
- Faculdades Pequeno Príncipe, Curitiba, PR, Brazil
| | - Izonete Cristina Guiloski
- Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba, PR, Brazil
- Faculdades Pequeno Príncipe, Curitiba, PR, Brazil
| | | | - Cláudia Sirlene Oliveira
- Instituto de Pesquisa Pelé Pequeno Príncipe, Curitiba, PR, Brazil.
- Faculdades Pequeno Príncipe, Curitiba, PR, Brazil.
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Garcia Ratés S, García‐Ayllón M, Falgàs N, Brangman SA, Esiri MM, Coen CW, Greenfield SA. Evidence for a novel neuronal mechanism driving Alzheimer's disease, upstream of amyloid. Alzheimers Dement 2024; 20:5027-5034. [PMID: 38780014 PMCID: PMC11247685 DOI: 10.1002/alz.13869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/21/2024] [Accepted: 04/08/2024] [Indexed: 05/25/2024]
Abstract
This perspective offers an alternative to the amyloid hypothesis in the etiology of Alzheimer's disease (AD). We review evidence for a novel signaling mechanism based on a little-known peptide, T14. T14 could drive neurodegeneration as an aberrantly activated process of plasticity selective to interconnecting subcortical nuclei, the isodendritic core, where cell loss starts at the pre-symptomatic stages of the disease. Each of these cell groups has the capacity to form T14, which can stimulate production of p-Tau and β-amyloid, suggestive of an upstream driver of neurodegeneration. Moreover, results in an animal AD model show that antagonism of T14 with a cyclated variant, NBP14, prevents formation of β-amyloid, and restores cognitive function to that of wild-type counterparts. Any diagnostic and/or therapeutic strategy based on T14-NBP14 awaits validation in clinical trials. However, an understanding of this novel signaling system could bring much-needed fresh insights into the progression of cell loss underlying AD. HIGHLIGHTS: The possible primary mechanism of neurodegeneration upstream of amyloid. Primary involvement of selectively vulnerable subcortical nuclei, isodendritic core. Bioactive peptide T14 trophic in development but toxic in context of mature brain. Potential for early-stage biomarker to detect Alzheimer's disease. Effective therapeutic halting neurodegeneration, validated already in 5XFAD mice.
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Affiliation(s)
| | - María‐Salud García‐Ayllón
- Unidad de InvestigaciónHospital General Universitario de Elche, FISABIOElcheSpain
- Instituto de Neurociencias de AlicanteUniversidad Miguel Hernández‐CSICSant Joan d'AlacantSpain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED)MadridSpain
| | - Neus Falgàs
- Alzheimer's disease and other cognitive disorders UnitHospital Clínic de Barcelona. Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS)BarcelonaSpain
| | - Sharon A. Brangman
- Department of GeriatricsUpstate Center of Excellence for Alzheimer's DiseaseSUNY Upstate Medical University 750 East Adams StreetSyracuseNew YorkUSA
| | - Margaret M Esiri
- Neuropathology DepartmentJohn Radcliffe Hospital, West WingOxford UniversityOxfordUK
| | - Clive W. Coen
- Faculty of Life Sciences & MedicineKing's College LondonLondonUK
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Pourfridoni M, Hedayati-Moghadam M, Fathi S, Fathi S, Mirrashidi FS, Askarpour H, Shafieemojaz H, Baghcheghi Y. Beneficial effects of metformin treatment on memory impairment. Mol Biol Rep 2024; 51:640. [PMID: 38727848 DOI: 10.1007/s11033-024-09445-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 03/13/2024] [Indexed: 07/12/2024]
Abstract
Memory issues are a prevalent symptom in different neurodegenerative diseases and can also manifest in certain psychiatric conditions. Despite limited medications approved for treating memory problems, research suggests a lack of sufficient options in the market. Studies indicate that a significant percentage of elderly individuals experience various forms of memory disorders. Metformin, commonly prescribed for type 2 diabetes, has shown neuroprotective properties through diverse mechanisms. This study explores the potential of metformin in addressing memory impairments. The current research gathered its data by conducting an extensive search across electronic databases including PubMed, Web of Science, Scopus, and Google Scholar. Previous research suggests that metformin enhances brain cell survival and memory function in both animal and clinical models by reducing oxidative stress, inflammation, and cell death while increasing beneficial neurotrophic factors. The findings of the research revealed that metformin is an effective medication for enhancing various types of memory problems in numerous studies. Given the rising incidence of memory disorders, it is plausible to utilize metformin, which is an affordable and accessible drug. It is often recommended as a treatment to boost memory.
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Affiliation(s)
- Mohammad Pourfridoni
- Student Research Committee, Jiroft University of Medical Sciences, Jiroft, Iran
- Clinical Research Development Center of Imam Khomeini Hospital, Jiroft University of Medical Sciences, Jiroft, Iran
| | - Mahdiyeh Hedayati-Moghadam
- Student Research Committee, Jiroft University of Medical Sciences, Jiroft, Iran
- Department of Physiology, School of Medicine, Jiroft University of Medical Sciences, Jiroft, Iran
- Clinical Research Development Center of Imam Khomeini Hospital, Jiroft University of Medical Sciences, Jiroft, Iran
| | - Shirin Fathi
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
- Clinical Research Development Center of Imam Khomeini Hospital, Jiroft University of Medical Sciences, Jiroft, Iran
| | - Shiva Fathi
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
- Clinical Research Development Center of Imam Khomeini Hospital, Jiroft University of Medical Sciences, Jiroft, Iran
| | - Fatemeh Sadat Mirrashidi
- Departrment of Pediatrics, Jiroft University of Medical Sciences, Jiroft, Iran
- Clinical Research Development Center of Imam Khomeini Hospital, Jiroft University of Medical Sciences, Jiroft, Iran
| | - Hedyeh Askarpour
- Student Research Committee, Jiroft University of Medical Sciences, Jiroft, Iran
- Clinical Research Development Center of Imam Khomeini Hospital, Jiroft University of Medical Sciences, Jiroft, Iran
| | - Hadi Shafieemojaz
- Student Research Committee, Jiroft University of Medical Sciences, Jiroft, Iran
- Clinical Research Development Center of Imam Khomeini Hospital, Jiroft University of Medical Sciences, Jiroft, Iran
| | - Yousef Baghcheghi
- Student Research Committee, Jiroft University of Medical Sciences, Jiroft, Iran.
- Clinical Research Development Center of Imam Khomeini Hospital, Jiroft University of Medical Sciences, Jiroft, Iran.
- Bio Environmental Health Hazards Research Center, Jiroft University of Medical Sciences, Jiroft, Iran.
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10
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Vasantharekha R, Priyanka HP, Nair RS, Hima L, Pratap UP, Srinivasan AV, ThyagaRajan S. Alterations in Immune Responses Are Associated with Dysfunctional Intracellular Signaling in Peripheral Blood Mononuclear Cells of Men and Women with Mild Cognitive Impairment and Alzheimer's disease. Mol Neurobiol 2024; 61:2964-2977. [PMID: 37957423 DOI: 10.1007/s12035-023-03764-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 11/02/2023] [Indexed: 11/15/2023]
Abstract
Deficits in the neuroendocrine-immune network in the periphery associated with the onset and progression of mild cognitive impairment (MCI) and Alzheimer's disease (AD) have not been extensively studied. The present study correlatively examines the association between cell-mediated immune responses, stress hormones, amyloid precursor protein (APP) expression, peripheral blood mononuclear cells (PBMC), and intracellular signaling molecules in the pathophysiology of MCI and AD compared to adults. Serum APP, lymphocyte proliferation, total cholinesterase (TChE), butyrylcholinesterase (BChE) activities, cytokines (IL-2, IFN-γ, IL-6, and TNF-α), and intracellular signaling molecules (p-ERK, p-CREB, and p-Akt) were measured in the PBMCs of adult, old, MCI, and AD men and women initially and after 3 years in the same population. An age- and disease-associated decline in mini-mental state examination (MMSE) scores and lymphocyte proliferation of MCI and AD men and women were observed. An age- and disease-related increase in serum APP, cortisol levels, and TChE activity were observed in men and women. Enhanced production of Th1 cytokine, IL-2, pro-inflammatory cytokines, and suppressed intracellular transcription factors may promote the inflammatory environment in MCI and AD patients. The expression of CREB and Akt was lower in MCI and AD men, while the expression of p-ERK was higher, and p-CREB was lower in MCI and AD women after 3 years. These results suggest that changes in specific intracellular signaling pathways may influence alterations in cell-mediated immunity to promote disease progression in MCI and AD patients.
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Affiliation(s)
- Ramasamy Vasantharekha
- Integrative Medicine Laboratory, Department of Biotechnology, SRM Institute of Science & Technology, Kattankulathur, 603203, Tamil Nadu, India.
| | - Hannah P Priyanka
- Institute of Advanced Research in Health Sciences, Tamil Nadu Government Multi Super Speciality Hospital, Omandurar Government Estate, Chennai, Tamil Nadu, India
| | - Rahul S Nair
- Institute of Advanced Research in Health Sciences, Tamil Nadu Government Multi Super Speciality Hospital, Omandurar Government Estate, Chennai, Tamil Nadu, India
| | - Lalgi Hima
- Integrative Medicine Laboratory, Department of Biotechnology, SRM Institute of Science & Technology, Kattankulathur, 603203, Tamil Nadu, India
| | - Uday P Pratap
- Integrative Medicine Laboratory, Department of Biotechnology, SRM Institute of Science & Technology, Kattankulathur, 603203, Tamil Nadu, India
| | | | - Srinivasan ThyagaRajan
- Integrative Medicine Laboratory, Department of Biotechnology, SRM Institute of Science & Technology, Kattankulathur, 603203, Tamil Nadu, India
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11
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Nazir S. Salivary biomarkers: The early diagnosis of Alzheimer's disease. Aging Med (Milton) 2024; 7:202-213. [PMID: 38725701 PMCID: PMC11077336 DOI: 10.1002/agm2.12282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 10/25/2023] [Accepted: 12/19/2023] [Indexed: 05/12/2024] Open
Abstract
The precise identification of Alzheimer's disease and other prevalent neurodegenerative diseases remains a difficult issue that requires the development of early detection of the disease and inexpensive biomarkers that can replace the present cerebrospinal fluid and imaging biomarkers. Blood biomarkers, such as amyloid and neurofilament light, have been emphasized as an important and practical tool in a testing or examination procedure thanks to advancements in ultra-sensitive detection techniques. Although saliva is not currently being researched for neurodegenerative diseases, it is an important source of biomarkers that can be used for the identification of diseases and has some advantages over other biofluids. While this may be true for most people, getting saliva from elderly people presents some significant challenges. In this overview, we will first discuss how saliva is created and how aging-related illnesses may affect the amount and kind of saliva produced. The findings support the use of salivary amyloid protein, tau species, and novel biomarkers in the diagnosis of Alzheimer's disease.
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Affiliation(s)
- Sophia Nazir
- Wolfson Nanomaterials and Devices Laboratory, School of Computing, Electronics and MathematicsPlymouth UniversityDevonUK
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12
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Sinha JK, Trisal A, Ghosh S, Gupta S, Singh KK, Han SS, Mahapatra M, Abomughaid MM, Abomughayedh AM, Almutary AG, Iqbal D, Bhaskar R, Mishra PC, Jha SK, Jha NK, Singh AK. Psychedelics for alzheimer's disease-related dementia: Unveiling therapeutic possibilities and pathways. Ageing Res Rev 2024; 96:102211. [PMID: 38307424 DOI: 10.1016/j.arr.2024.102211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 02/04/2024]
Abstract
Psychedelics have traditionally been used for spiritual and recreational purposes, but recent developments in psychotherapy have highlighted their potential as therapeutic agents. These compounds, which act as potent 5-hydroxytryptamine (5HT) agonists, have been recognized for their ability to enhance neural plasticity through the activation of the serotoninergic and glutamatergic systems. However, the implications of these findings for the treatment of neurodegenerative disorders, particularly dementia, have not been fully explored. In recent years, studies have revealed the modulatory and beneficial effects of psychedelics in the context of dementia, specifically Alzheimer's disease (AD)-related dementia, which lacks a definitive cure. Psychedelics such as N,N-dimethyltryptamine (DMT), lysergic acid diethylamide (LSD), and Psilocybin have shown potential in mitigating the effects of this debilitating disease. These compounds not only target neurotransmitter imbalances but also act at the molecular level to modulate signalling pathways in AD, including the brain-derived neurotrophic factor signalling pathway and the subsequent activation of mammalian target of rapamycin and other autophagy regulators. Therefore, the controlled and dose-dependent administration of psychedelics represents a novel therapeutic intervention worth exploring and considering for the development of drugs for the treatment of AD-related dementia. In this article, we critically examined the literature that sheds light on the therapeutic possibilities and pathways of psychedelics for AD-related dementia. While this emerging field of research holds great promise, further studies are necessary to elucidate the long-term safety, efficacy, and optimal treatment protocols. Ultimately, the integration of psychedelics into the current treatment paradigm may provide a transformative approach for addressing the unmet needs of individuals living with AD-related dementia and their caregivers.
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Affiliation(s)
| | - Anchal Trisal
- Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Shampa Ghosh
- GloNeuro, Sector 107, Vishwakarma Road, Noida 201301, India
| | - Saurabh Gupta
- Department of Biotechnology, GLA University, Mathura, Uttar Pradesh, India
| | - Krishna Kumar Singh
- Symbiosis Centre for Information Technology (SCIT), Rajiv Gandhi InfoTech Park, Hinjawadi, Pune, Maharashtra 411057, India
| | - Sung Soo Han
- School of Chemical Engineering, Yeungnam University, Gyeonsang 38541, the Republic of Korea; Research Institute of Cell Culture, Yeungnam University, 280 Daehak-Ro, Gyeongsan 38541, the Republic of Korea
| | | | - Mosleh Mohammad Abomughaid
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, University of Bisha, Bisha 61922, Saudi Arabia
| | - Ali M Abomughayedh
- Pharmacy Department, Aseer Central Hospital, Ministry of Health, Saudi Arabia
| | - Abdulmajeed G Almutary
- Department of Biomedical Sciences, College of Health Sciences, Abu Dhabi University, Abu Dhabi P.O. Box 59911, United Arab Emirates
| | - Danish Iqbal
- Department of Health Information Management, College of Applied Medical Sciences, Buraydah Private Colleges, Buraydah 51418, Saudi Arabia
| | - Rakesh Bhaskar
- School of Chemical Engineering, Yeungnam University, Gyeonsang 38541, the Republic of Korea; Research Institute of Cell Culture, Yeungnam University, 280 Daehak-Ro, Gyeongsan 38541, the Republic of Korea.
| | - Prabhu Chandra Mishra
- Department of Biotechnology, School of Engineering and Technology, Sharda University, Greater Noida, India
| | - Saurabh Kumar Jha
- Department of Zoology, Kalindi College, University of Delhi, 110008, India.
| | - Niraj Kumar Jha
- Centre for Global Health Research, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India; Centre of Research Impact and Outcome, Chitkara University, Rajpura 140401, Punjab, India; School of Bioengineering & Biosciences, Lovely Professional University, Phagwara 144411, India; Department of Biotechnology Engineering and Food Technology, Chandigarh University, Mohali, India.
| | - Abhishek Kumar Singh
- Manipal Centre for Biotherapeutics Research, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India.
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13
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Jiao LL, Dong HL, Liu MM, Wu PL, Cao Y, Zhang Y, Gao FG, Zhu HY. The potential roles of salivary biomarkers in neurodegenerative diseases. Neurobiol Dis 2024; 193:106442. [PMID: 38382884 DOI: 10.1016/j.nbd.2024.106442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 02/01/2024] [Accepted: 02/18/2024] [Indexed: 02/23/2024] Open
Abstract
Current research efforts on neurodegenerative diseases are focused on identifying novel and reliable biomarkers for early diagnosis and insight into disease progression. Salivary analysis is gaining increasing interest as a promising source of biomarkers and matrices for measuring neurodegenerative diseases. Saliva collection offers multiple advantages over the currently detected biofluids as it is easily accessible, non-invasive, and repeatable, allowing early diagnosis and timely treatment of the diseases. Here, we review the existing findings on salivary biomarkers and address the potential value in diagnosing neurodegenerative diseases, such as Alzheimer's disease, Parkinson's disease, Huntington's disease and Amyotrophic lateral sclerosis. Based on the available research, β-amyloid, tau protein, α-synuclein, DJ-1, Huntington protein in saliva profiles display reliability and validity as the biomarkers of neurodegenerative diseases.
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Affiliation(s)
- Ling-Ling Jiao
- China Tobacco Jiangsu Industrial Co Ltd, Nanjing 210019, China; School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Hui-Lin Dong
- China Tobacco Jiangsu Industrial Co Ltd, Nanjing 210019, China
| | - Meng-Meng Liu
- China Tobacco Jiangsu Industrial Co Ltd, Nanjing 210019, China
| | - Peng-Lin Wu
- China Tobacco Jiangsu Industrial Co Ltd, Nanjing 210019, China
| | - Yi Cao
- China Tobacco Jiangsu Industrial Co Ltd, Nanjing 210019, China
| | - Yuan Zhang
- China Tobacco Jiangsu Industrial Co Ltd, Nanjing 210019, China
| | - Fu-Gao Gao
- Xuzhou Cigarette Factory, China Tobacco Jiangsu Industrial Co Ltd, Xuzhou 221005, China.
| | - Huai-Yuan Zhu
- China Tobacco Jiangsu Industrial Co Ltd, Nanjing 210019, China; School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
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14
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Alhawarri MB, Al-Thiabat MG, Dubey A, Tufail A, Fouad D, Alrimawi BH, Dayoob M. ADME profiling, molecular docking, DFT, and MEP analysis reveal cissamaline, cissamanine, and cissamdine from Cissampelos capensis L.f. as potential anti-Alzheimer's agents. RSC Adv 2024; 14:9878-9891. [PMID: 38528929 PMCID: PMC10961956 DOI: 10.1039/d4ra01070a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Accepted: 03/17/2024] [Indexed: 03/27/2024] Open
Abstract
The current pharmacotherapies for Alzheimer's disease (AD) demonstrate limited efficacy and are associated with various side effects, highlighting the need for novel therapeutic agents. Natural products, particularly from medicinal plants, have emerged as a significant source of potential neuroprotective compounds. In this context, Cissampelos capensis L.f., renowned for its medicinal properties, has recently yielded three new proaporphine alkaloids; cissamaline, cissamanine, and cissamdine. Despite their promising bioactive profiles, the biological targets of these alkaloids in the context of AD have remained unexplored. This study undertakes a comprehensive in silico examination of the binding affinity and molecular interactions of these alkaloids with human protein targets implicated in AD. The drug likeness and ADME analyses indicate favorable pharmacokinetic profiles for these compounds, suggesting their potential efficacy in targeting the central nervous system. Molecular docking studies indicate that cissamaline, cissamanine, and cissamdine interact with key AD-associated proteins. These interactions are comparable to, or in some aspects slightly less potent than, those observed with established AD drugs, highlighting their potential as novel therapeutic agents for Alzheimer's disease. Crucially, Density Functional Theory (DFT) calculations offer deep insights into the electronic and energetic characteristics of these alkaloids. These calculations reveal distinct electronic properties, with differences in total energy, binding energy, HOMO-LUMO gaps, dipole moments, and electrophilicity indices. Such variations suggest unique reactivity profiles and molecular stability, pertinent to their pharmacological potential. Moreover, Molecular Electrostatic Potential (MEP) analyses provide visual representations of the electrostatic characteristics of these alkaloids. The analyses highlight areas prone to electrophilic and nucleophilic attacks, indicating their potential for specific biochemical interactions. This combination of DFT and MEP results elucidates the intricate electronic, energetic, and electrostatic properties of these compounds, underpinning their promise as AD therapeutic agents. The in silico findings of this study shed light on the promising potential of cissamaline, cissamanine, and cissamdine as agents for AD treatment. However, further in vitro and in vivo studies are necessary to validate these theoretical predictions and to understand the precise mechanisms through which these alkaloids may exert their therapeutic effects.
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Affiliation(s)
- Maram B Alhawarri
- Department of Pharmacy, Faculty of Pharmacy, Jadara University P.O.Box 733 Irbid 21110 Jordan
| | - Mohammad G Al-Thiabat
- School of Pharmaceutical Sciences, Universiti Sains Malaysia Gelugor 11800 Penang Malaysia
| | - Amit Dubey
- Department of Pharmacology, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences Chennai-600077 Tamil Nadu India
- Computational Chemistry and Drug Discovery Division Quanta Calculus Greater Noida-201310 Uttar Pradesh India
| | - Aisha Tufail
- Computational Chemistry and Drug Discovery Division Quanta Calculus Greater Noida-201310 Uttar Pradesh India
| | - Dania Fouad
- Faculty of Dentistry, Ibn Sina University for Medical and Pharmaceutical Sciences Baghdad Iraq
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15
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Ribeiro J, Araújo-Silva H, Fernandes M, da Silva JA, Pinto FDCL, Pessoa ODL, Santos HS, de Menezes JESA, Gomes AC. Petrosamine isolated from marine sponge Petrosia sp. demonstrates protection against neurotoxicity in vitro and in vivo. NATURAL PRODUCTS AND BIOPROSPECTING 2024; 14:16. [PMID: 38383833 PMCID: PMC10881933 DOI: 10.1007/s13659-024-00439-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 02/07/2024] [Indexed: 02/23/2024]
Abstract
According to The World Alzheimer Report 2023 by Alzheimer's Disease International (ADI) estimates that 33 to 38.5 million people worldwide suffer from Alzheimer's Disease (AD). A crucial hallmark associated with this disease is associated with the deficiency of the brain neurotransmitter acetylcholine, due to an affected acetylcholinesterase (AChE) activity. Marine organisms synthesize several classes of compounds, some of which exhibit significant AChE inhibition, such as petrosamine, a coloured pyridoacridine alkaloid. The aim of this work was to characterize the activity of petrosamine isolated for the first time from a Brazilian marine sponge, using two neurotoxicity models with aluminium chloride, as exposure to aluminium is associated with the development of neurodegenerative diseases. The in vitro model was based in a neuroblastoma cell line and the in vivo model exploited the potential of zebrafish (Danio rerio) embryos in mimicking hallmarks of AD. To our knowledge, this is the first report on petrosamine's activity over these parameters, either in vitro or in vivo, in order to characterize its full potential for tackling neurotoxicity.
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Affiliation(s)
- Joana Ribeiro
- CBMA (Centre of Molecular and Environmental Biology) / Aquatic Research Network (ARNET) Associate Laboratory, Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Henrique Araújo-Silva
- CBMA (Centre of Molecular and Environmental Biology) / Aquatic Research Network (ARNET) Associate Laboratory, Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Mário Fernandes
- CBMA (Centre of Molecular and Environmental Biology) / Aquatic Research Network (ARNET) Associate Laboratory, Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Joilna Alves da Silva
- Program in Natural Sciences, Natural Products Chemistry Laboratory, State University of Ceará, Fortaleza, Ceará, Brazil
| | - Francisco das Chagas L Pinto
- Department of Organic and Inorganic Chemistry, Science Center, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Otília Deusdenia L Pessoa
- Department of Organic and Inorganic Chemistry, Science Center, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | - Hélcio Silva Santos
- Program in Natural Sciences, Natural Products Chemistry Laboratory, State University of Ceará, Fortaleza, Ceará, Brazil
- Department of Organic and Inorganic Chemistry, Science Center, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | | | - Andreia C Gomes
- CBMA (Centre of Molecular and Environmental Biology) / Aquatic Research Network (ARNET) Associate Laboratory, Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal.
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Sanfeliu C, Bartra C, Suñol C, Rodríguez-Farré E. New insights in animal models of neurotoxicity-induced neurodegeneration. Front Neurosci 2024; 17:1248727. [PMID: 38260026 PMCID: PMC10800989 DOI: 10.3389/fnins.2023.1248727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 12/18/2023] [Indexed: 01/24/2024] Open
Abstract
The high prevalence of neurodegenerative diseases is an unintended consequence of the high longevity of the population, together with the lack of effective preventive and therapeutic options. There is great pressure on preclinical research, and both old and new models of neurodegenerative diseases are required to increase the pipeline of new drugs for clinical testing. We review here the main models of neurotoxicity-based animal models leading to central neurodegeneration. Our main focus was on studying how changes in neurotransmission and neuroinflammation, mainly in rodent models, contribute to harmful processes linked to neurodegeneration. The majority of the models currently in use mimic Parkinson's disease (PD) and Alzheimer's disease (AD), which are the most common neurodegenerative conditions in older adults. AD is the most common age-related dementia, whereas PD is the most common movement disorder with also cases of dementia. Several natural toxins and xenobiotic agents induce dopaminergic neurodegeneration and can reproduce neuropathological traits of PD. The literature analysis of MPTP, 6-OH-dopamine, and rotenone models suggested the latter as a useful model when specific doses of rotenone were administrated systemically to C57BL/6 mice. Cholinergic neurodegeneration is mainly modelled with the toxin scopolamine, which is a useful rodent model for the screening of protective drugs against cognitive decline and AD. Several agents have been used to model neuroinflammation-based neurodegeneration and dementia in AD, including lipopolysaccharide (LPS), streptozotocin, and monomeric C-reactive protein. The bacterial agent LPS makes a useful rodent model for testing anti-inflammatory therapies to halt the development and severity of AD. However, neurotoxin models might be more useful than genetic models for drug discovery in PD but that is not the case in AD where they cannot beat the new developments in transgenic mouse models. Overall, we should work using all available models, either in vivo, in vitro, or in silico, considering the seriousness of the moment and urgency of developing effective drugs.
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Affiliation(s)
- Coral Sanfeliu
- Institut d’Investigacions Biomèdiques de Barcelona (IIBB), Consejo Superior de Investigaciones Científicas (CSIC), and Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Clara Bartra
- Institut d’Investigacions Biomèdiques de Barcelona (IIBB), Consejo Superior de Investigaciones Científicas (CSIC), and Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- PhD Program in Biotechnology, Facultat de Farmàcia i Ciències de l’Alimentació, Universitat de Barcelona, Barcelona, Spain
| | - Cristina Suñol
- Institut d’Investigacions Biomèdiques de Barcelona (IIBB), Consejo Superior de Investigaciones Científicas (CSIC), and Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Eduard Rodríguez-Farré
- Institut d’Investigacions Biomèdiques de Barcelona (IIBB), Consejo Superior de Investigaciones Científicas (CSIC), and Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
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17
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Aydin BO, Anil DA, Demir Y, Alagoz MA. Organohalogen chalcones: design, synthesis, ADMET prediction, molecular dynamics study and inhibition effect on acetylcholinesterase and carbonic anhydrase. Mol Divers 2024:10.1007/s11030-023-10774-9. [PMID: 38170420 DOI: 10.1007/s11030-023-10774-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Accepted: 11/17/2023] [Indexed: 01/05/2024]
Abstract
In an effort to discover potential acetylcholinesterase (AChE) and carbonic anhydrase (CA) inhibitors, a novel series of organohalogen chalcone derivatives (12-20, 23-30) was synthesized, and their chemical structures were characterized by spectral analysis. They showed a highly potent inhibition effect on AChE and hCAs (Ki values range from 5.07 ± 0.062 to 65.53 ± 4.36 nM for AChE, 13.54 ± 2.55 to 94.11 ± 10.39 nM for hCA I, and 5.21 ± 0.54 to 57.44 ± 3.12 nM for hCA II). In addition, the chalcone derivatives with the highest inhibitor score docked into the active site of the indicated metabolic enzyme receptors, and their absorption, metabolism, and toxic properties were evaluated according to ADMET's estimation.Compounds 16 and 19 exhibited the highest inhibition score, emerged as lead compounds, and inspired the development of more potent compounds.
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Affiliation(s)
- Busra Ozturk Aydin
- Department of Chemistry, Faculty of Science, Ataturk University, 25240, Erzurum, Turkey
| | - Derya Aktas Anil
- Department of Chemistry, Faculty of Science, Ataturk University, 25240, Erzurum, Turkey.
- Department of Chemistry and Chemical Process Technologies, Technical Sciences Vocational School, Ataturk University, 25240, Erzurum, Turkey.
| | - Yeliz Demir
- Department of Pharmacy Services, Nihat Delibalta Göle Vocational School, Ardahan University, 75002, Ardahan, Turkey
| | - Mehmet Abdullah Alagoz
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Inonu University, Malatya, Turkey
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Egbujor MC. Sulfonamide Derivatives: Recent Compounds with Potent Anti-alzheimer's Disease Activity. Cent Nerv Syst Agents Med Chem 2024; 24:82-104. [PMID: 38275073 DOI: 10.2174/0118715249278489231128042135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 10/27/2023] [Accepted: 11/06/2023] [Indexed: 01/27/2024]
Abstract
Facile synthetic procedures and broad spectrum of biological activities are special attributes of sulfonamides. Sulfonamide derivatives have demonstrated potential as a class of compounds for the treatment of Alzheimer's disease (AD). Recent sulfonamide derivatives have been reported as prospective anti-AD agents, with a focus on analogues that significantly inhibit the function of acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) enzymes and exhibit remarkable antioxidant and anti-inflammatory properties, all of which are critical for the treatment of AD. Sulfonamide- mediated activation of nuclear factor erythroid 2-related factor 2 (NRF2), a key regulator of the endogenous antioxidant response, has also been suggested as a potential therapeutic approach in AD. Additionally, it has been discovered that a number of sulfonamide derivatives show selectivity for the β- and γ-secretase enzymes and a significant reduction of amyloid B (Aβ) aggregation, which have been implicated in AD. The comparative molecular docking of benzenesulfonamide and donepezil, an AD reference drug showed comparable anti-AD activities. These suggest that sulfonamide derivatives may represent a new class of drugs for the treatment of AD. Thus, the current review will focus on recent studies on the chemical synthesis and evaluation of the anti-AD properties, molecular docking, pharmacological profile, and structure-activity relationship (SAR) of sulfonamide derivatives, as well as their potential anti-AD mechanisms of action. This paper offers a thorough assessment of the state of the art in this field of study and emphasizes the potential of sulfonamide derivatives synthesized during the 2012-2023 period as a new class of compounds for the treatment of AD.
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19
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de la Monte SM, Tong M. Agent Orange Herbicidal Toxin-Initiation of Alzheimer-Type Neurodegeneration. J Alzheimers Dis 2024; 97:1703-1726. [PMID: 38306038 PMCID: PMC10979462 DOI: 10.3233/jad-230881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Background Agent Orange (AO) is a Vietnam War-era herbicide that contains a 1 : 1 ratio of 2,4-dichlorophenoxyacetic acid (2,4-D) and 2,4,5-trichlorophenoxyacetic acid (2,4,5-T). Emerging evidence suggests that AO exposures cause toxic and degenerative pathologies that may increase the risk for Alzheimer's disease (AD). Objective This study investigates the effects of the two main AO constituents on key molecular and biochemical indices of AD-type neurodegeneration. Methods Long Evans rat frontal lobe slice cultures treated with 250μg/ml of 2,4-D, 2,4,5-T, or both (D + T) were evaluated for cytotoxicity, oxidative injury, mitochondrial function, and AD biomarker expression. Results Treatment with the AO constituents caused histopathological changes corresponding to neuronal, white matter, and endothelial cell degeneration, and molecular/biochemical abnormalities indicative of cytotoxic injury, lipid peroxidation, DNA damage, and increased immunoreactivity to activated Caspase 3, glial fibrillary acidic protein, ubiquitin, tau, paired-helical filament phosphorylated tau, AβPP, Aβ, and choline acetyltransferase. Nearly all indices of cellular injury and degeneration were more pronounced in the D + T compared with 2,4-D or 2,4,5-T treated cultures. Conclusions Exposures to AO herbicidal chemicals damage frontal lobe brain tissue with molecular and biochemical abnormalities that mimic pathologies associated with early-stage AD-type neurodegeneration. Additional research is needed to evaluate the long-term effects of AO exposures in relation to aging and progressive neurodegeneration in Vietnam War Veterans.
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Affiliation(s)
- Suzanne M. de la Monte
- Departments of Pathology and Laboratory Medicine, Neurology, and Neurosurgery, Rhode Island Hospital, Lifespan Academic Institutions, and the Warren Alpert Medical School of Brown University, Providence, RI, USA
- Department of Medicine, Rhode Island Hospital, Lifespan Academic Institutions, and the Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Ming Tong
- Department of Medicine, Rhode Island Hospital, Lifespan Academic Institutions, and the Warren Alpert Medical School of Brown University, Providence, RI, USA
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20
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Alamri OA, Qusti S, Balgoon M, Ageeli AA, Al-Marhaby FA, Alosaimi AM, Jowhari MA, Saeed A. The role of MoS 2 QDs coated with DSPE-PEG-TPP in the protection of protein secondary structure of the brain tissues in an Alzheimer's disease model. Int J Biol Macromol 2024; 255:128522. [PMID: 38040141 DOI: 10.1016/j.ijbiomac.2023.128522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 11/12/2023] [Accepted: 11/28/2023] [Indexed: 12/03/2023]
Abstract
In this investigation, we have explored the protective capacity of MoS2 QDs coated with 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[amino(polyethyleneglycol) -2000] (DSPE-PEG) linked with (3-carboxypropyl) triphenylphosphonium-bromide (TPP), on the secondary structure of proteins in Alzheimer's disease (AD)-affected brain tissues. Using a cohort of fifteen male SWR/J mice, we establish three groups: a control group, a second group induced with AD through daily doses of AlCl3 and D-galactose for 49 consecutive days, and a third group receiving the same AD-inducing doses but treated with DSPE-PEG-TPP-MoS2 QDs. Brain tissues are meticulously separated from the skull, and their molecular structures are analyzed via FTIR spectroscopy. Employing the curve fitting method on the amide I peak, we delve into the nuances of protein secondary structure. The FTIR analysis reveals a marked increase in β-sheet structures and a concurrent decline in turn and α-helix structures in the AD group in comparison to the control group. Notably, no statistically significant differences emerge between the treated and control mice. Furthermore, multivariate analysis of the FTIR spectral region, encompassing protein amide molecular structures, underscores a remarkable similarity between the treated and normal mice. This study elucidates the potential of DSPE-PEG-TPP-MoS2 QDs in shielding brain tissue proteins against the pathogenic influences of AD.
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Affiliation(s)
- Ohoud Abdulaziz Alamri
- Department of Medical Laboratory, King Fahad Armed Forces Hospital, Jeddah 23311, Saudi Arabia; Department of Biochemistry Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Safaa Qusti
- Department of Biochemistry Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Maha Balgoon
- Department of Biochemistry Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Abeer A Ageeli
- Department of Chemistry, Faculty of Science, Jazan University, Jazan 45142, Saudi Arabia
| | - F A Al-Marhaby
- Department of Physics, Al-Qunfudhah University College, Umm Al-Qura University, Makkah 24230, Saudi Arabia
| | - Abeer M Alosaimi
- Department of Chemistry, College of Science, Taif University, Taif 21944, Saudi Arabia
| | - Mohammed A Jowhari
- Medical Physics Department, Jazan Specialized Hospital, Ministry of Health, Jazan Health Affairs, Jazan 45142, Saudi Arabia
| | - Abdu Saeed
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; Department of Physics, Thamar University, Thamar 87246, Yemen.
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21
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Budhbhatti U, Chauhan A, Bhatt D, Parmar C, Damani V, Patel A, Joshi C. Association of NOTCH4 and ACHE gene polymorphism in Alzheimer's disease of Gujarat cohort. Neurosci Lett 2023; 814:137428. [PMID: 37544578 DOI: 10.1016/j.neulet.2023.137428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 07/03/2023] [Accepted: 08/03/2023] [Indexed: 08/08/2023]
Abstract
BACKGROUND Alzheimer's Disease (AD) is the most common form of dementia, affecting cognitive and behavioral functions. AD is a complex disease resulting from the modest effect of gene interaction and environmental factors, as a result of which the exact pathogenesis is still unknown. AIM The aim of the present study was to investigate the association between variants of 98 targeted genes with Alzheimer's disease phenotype. METHOD A total of 98 genes from 32 AD cases and 11 controls were genotyped using the Haloplex target enrichment method and the PCR-RFLP approach.Association analysis was performed using the PLINK tool to identify the variant significantly associated with AD. Functional enrichment analysis and network analysis was performed using ClueGo and String database respectively. The Expression Quantitative Trait Loci (eQTL) analysis using the Genotype Tissue Expression (GTEx) dataset to explore the possible implication of the variant on the expression of one or more genes in different brain regions and whole blood. RESULT Association analysis showed significant association of 19 variant assigned to 16 genes with Alzheimer's with p-value < 0.05 with rs367398/NOTCH4 only variant that passed multiple test corrections. Functional enrichment analysis showed association of these genes with AD. ClueGo and network analysis utilizing the String database suggested that genes are directly and indirectly linked to the AD pathogenesis. eQTL analysis revealed that the rs367398/NOTCH4 and rs1799806/ACHE variant showed significant eQTL for the neighbouring genes. CONCLUSION The present study showed the possible role of 16 genes in AD pathogenesis, especially highlighting the role of rs367398/NOTCH4 and rs1799806/ACHE. However further investigation with large cohort is required to study and validate the implication of these variants in the AD pathogenesis.
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Affiliation(s)
- Urvi Budhbhatti
- Gujarat Biotechnology Research Centre (GBRC), Gandhinagar, Department of Science and Technology, Government of Gujarat, India
| | - Ajay Chauhan
- Hospital of Mental Health-Gujarat Institute of Mental Health, Shahibaug, Ahmedabad, Gujarat, India
| | - Deeptiben Bhatt
- Hospital of Mental Health-Gujarat Institute of Mental Health, Shahibaug, Ahmedabad, Gujarat, India
| | - Chirag Parmar
- Hospital of Mental Health-Gujarat Institute of Mental Health, Shahibaug, Ahmedabad, Gujarat, India
| | - Vishalbhai Damani
- Hospital of Mental Health-Gujarat Institute of Mental Health, Shahibaug, Ahmedabad, Gujarat, India
| | - Amrutlal Patel
- Gujarat Biotechnology Research Centre (GBRC), Gandhinagar, Department of Science and Technology, Government of Gujarat, India.
| | - Chaitanya Joshi
- Gujarat Biotechnology Research Centre (GBRC), Gandhinagar, Department of Science and Technology, Government of Gujarat, India.
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22
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Wang L, Sun T, Wang Z, Liu H, Qiu W, Tang X, Guo H, Yang P, Chen Y, Sun H. Design, Synthesis, and Proof of Concept of Balanced Dual Inhibitors of Butyrylcholinesterase (BChE) and Histone Deacetylase 6 (HDAC6) for the Treatment of Alzheimer's Disease. ACS Chem Neurosci 2023; 14:3226-3248. [PMID: 37561893 DOI: 10.1021/acschemneuro.3c00358] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/12/2023] Open
Abstract
Concomitant inhibition of butyrylcholinesterase (BChE) and histone deacetylase 6 (HDAC6) is supposed to be effective in the treatment of Alzheimer's disease (AD). Inspired by our previous efforts in designing BChE inhibitors, herein, selective BChE and HDAC6 dual inhibitors were successfully identified through the fusion of the core pharmacophoric moiety of BChE and HDAC6 inhibitors. After the structure-activity relationship (SAR) studies, two compounds (24g and 29a) were confirmed to have superior inhibitory activity against BChE (the IC50 against hBChE are 4.0 and 1.8 nM, respectively) and HDAC6 (the IC50 against HDAC6 are 8.9 and 71.0 nM, respectively). These two compounds showed prominently neuroprotective effects in vitro, potent reactive oxygen species (ROS) scavenging effects, and effective metal ion (Fe2+ and Cu2+) chelation. In addition, they exhibited pronounced inhibition of phosphorylated tau and a moderate immunomodulatory effect, with a lack of neurotoxicity at the cellular level. In vivo studies showed that both 24g and 29a ameliorated the cognitive impairment in an Aβ1-42-induced mouse model at a low dosage (2.5 mg/kg). Our data demonstrated that BChE/HDAC6 dual inhibitors could establish the basis for a potential new symptomatic and disease-modifying strategy to treat AD.
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Affiliation(s)
- Lei Wang
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, People's Republic of China
| | - Tianyu Sun
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, People's Republic of China
| | - Zhenqi Wang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, People's Republic of China
| | - Hui Liu
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, People's Republic of China
| | - Weimin Qiu
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, People's Republic of China
| | - Xu Tang
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, People's Republic of China
| | - Huanchao Guo
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, People's Republic of China
| | - Peng Yang
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, People's Republic of China
| | - Yao Chen
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, People's Republic of China
| | - Haopeng Sun
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, People's Republic of China
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23
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Basli A, Bounaas J. Pathophysiological mechanism and natural preventive and therapeutic strategies of Alzheimer's disease. Nutr Health 2023; 29:403-413. [PMID: 36377316 DOI: 10.1177/02601060221137104] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Alzheimer's disease (AD) is characterized by the presence of two types of protein deposits in the brain, amyloid plaques and neurofibrillary tangles. The first one are dense deposits of beta amyloid protein, the second one are dense deposits of the protein tau. These proteins are present in all of our brains, but in AD they act unusually, leading to neuronal degeneration. This review will provide an overview of the AD, including the role of amyloid beta and tau, and mechanisms that lead to the formation of plaques and tangles. The review will also cover the existing researches that have focused on the inhibition of amyloid beta formation, cholinesterase, tau hyperphosphorylation, the pathogenic mechanisms of apoE4, and GSK-3 as a solution that could be used to slow or prevent the disease.
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Affiliation(s)
- Abdelkader Basli
- Laboratory of Interaction Research, Biodiversity, Ecosystems and Biotechnology, Faculty of Sciences, University of Skikda, Skikda, Algeria
| | - Jihane Bounaas
- Laboratory of Interaction Research, Biodiversity, Ecosystems and Biotechnology, Faculty of Sciences, University of Skikda, Skikda, Algeria
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24
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de la Monte SM, Goel A, Tong M, Delikkaya B. Agent Orange Causes Metabolic Dysfunction and Molecular Pathology Reminiscent of Alzheimer's Disease. J Alzheimers Dis Rep 2023; 7:751-766. [PMID: 37662613 PMCID: PMC10473158 DOI: 10.3233/adr-230046] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 06/19/2023] [Indexed: 09/05/2023] Open
Abstract
Background Agent Orange, an herbicide used during the Vietnam War, contains 2,4-dichlorophenoxyacetic acid (2,4-D) and 2,4,5-trichlorophenoxyacetic acid (2,4,5-T). Agent Orange has teratogenic and carcinogenic effects, and population-based studies suggest Agent Orange exposures lead to higher rates of toxic and degenerative pathologies in the peripheral and central nervous system (CNS). Objective This study examines the potential contribution of Agent Orange exposures to neurodegeneration. Methods Human CNS-derived neuroepithelial cells (PNET2) treated with 2,4-D and 2,4,5-T were evaluated for viability, mitochondrial function, and Alzheimer's disease (AD)-related proteins. Results Treatment with 250μg/ml 2,4-D or 2,4,5-T significantly impaired mitochondrial function, caused degenerative morphological changes, and reduced viability in PNET2 cells. Correspondingly, glyceraldehyde-3-phosphate dehydrogenase expression which is insulin-regulated and marks the integrity of carbohydrate metabolism, was significantly inhibited while 4-hydroxy-2-nonenal, a marker of lipid peroxidation, was increased. Tau neuronal cytoskeletal protein was significantly reduced by 2,4,5-T, and relative tau phosphorylation was progressively elevated by 2,4,5-T followed by 2,4-D treatment relative to control. Amyloid-β protein precursor (AβPP) was increased by 2,4,5-T and 2,4-D, and 2,4,5-T caused a statistical trend (0.05 < p<0.10) increase in Aβ. Finally, altered cholinergic function due to 2,4,5-T and 2,4-D exposures was marked by significantly increased choline acetyltransferase and decreased acetylcholinesterase expression, corresponding with responses in early-stage AD. Conclusion Exposures to Agent Orange herbicidal chemicals rapidly damage CNS neurons, initiating a path toward AD-type neurodegeneration. Additional research is needed to understand the permanency of these neuropathologic processes and the added risks of developing AD in Agent Orange-exposed aging Vietnam Veterans.
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Affiliation(s)
- Suzanne M. de la Monte
- Department of Pathology and Laboratory Medicine, Rhode Island Hospital, Lifespan Academic Institutions, and the Warren Alpert Medical School of Brown University, Providence, RI, USA
- Department of Medicine, Rhode Island Hospital, Lifespan Academic Institutions, and The Warren Alpert Medical School of Brown University, Providence, RI, USA
- Department of Neurology and Neurosurgery, Rhode Island Hospital, Lifespan Academic Institutions, and The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Anuva Goel
- Department of Neuroscience, Brown University, Providence, RI, USA
| | - Ming Tong
- Department of Medicine, Rhode Island Hospital, Lifespan Academic Institutions, and The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Busra Delikkaya
- Department of Pathology and Laboratory Medicine, Rhode Island Hospital, Lifespan Academic Institutions, and the Warren Alpert Medical School of Brown University, Providence, RI, USA
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25
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Uliassi E, Bergamini C, Rizzardi N, Naldi M, Cores Á, Bartolini M, Carlos Menéndez J, Bolognesi ML. Quinolinetrione-tacrine hybrids as multi-target-directed ligands against Alzheimer's disease. Bioorg Med Chem 2023; 91:117419. [PMID: 37487339 DOI: 10.1016/j.bmc.2023.117419] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 07/04/2023] [Accepted: 07/18/2023] [Indexed: 07/26/2023]
Abstract
Multi-target drug discovery is one of the most active fields in the search for new drugs against Alzheimer's disease (AD). This is because the complexity of AD pathological network might be adequately tackled by multi-target-directed ligands (MTDLs) aimed at modulating simultaneously multiple targets of such a network. In a continuation of our efforts to develop MTDLs for AD, we have been focusing on the molecular hybridization of the acetylcholinesterase inhibitor tacrine with the aim of expanding its anti-AD profile. Herein, we manipulated the structure of a previously developed tacrine-quinone hybrid (1). We designed and synthesized a novel set of MTDLs (2-6) by replacing the naphthoquinone scaffold of 1 with that of 2,5,8-quinolinetrione. The most interesting hybrid 3 inhibited cholinesterase enzymes at nanomolar concentrations. In addition, 3 exerted antioxidant effects in menadione-induced oxidative stress of SH-SY5Y cells. Importantly, 3 also showed low hepatotoxicity and good anti-amyloid aggregation properties. Remarkably, we uncovered the potential of the quinolinetrione scaffold, as a novel anti-amyloid aggregation and antioxidant motif to be used in further anti-AD MTDL drug discovery endeavors.
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Affiliation(s)
- Elisa Uliassi
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum - University of Bologna, 40126 Bologna, Italy
| | - Christian Bergamini
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum - University of Bologna, 40126 Bologna, Italy
| | - Nicola Rizzardi
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum - University of Bologna, 40126 Bologna, Italy
| | - Marina Naldi
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum - University of Bologna, 40126 Bologna, Italy
| | - Ángel Cores
- Department of Chemistry in Pharmaceutical Sciences, Organic and Medicinal Chemistry Unit, Faculty of Pharmacy, Universidad Complutense, 28040 Madrid, Spain
| | - Manuela Bartolini
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum - University of Bologna, 40126 Bologna, Italy
| | - J Carlos Menéndez
- Department of Chemistry in Pharmaceutical Sciences, Organic and Medicinal Chemistry Unit, Faculty of Pharmacy, Universidad Complutense, 28040 Madrid, Spain.
| | - Maria Laura Bolognesi
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum - University of Bologna, 40126 Bologna, Italy.
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26
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Ahmed Khan D, Shahid A, Sherif AE, Aati HY, Abdullah M, Mehmood K, Hussain M, Basit A, Ahmad Ghalloo B, ur Rehman Khan K. A detailed biochemical characterization, toxicological assessment and molecular docking studies of Launaea fragilis: An important medicinal xero-halophyte. Saudi Pharm J 2023; 31:1047-1060. [PMID: 37250362 PMCID: PMC10212792 DOI: 10.1016/j.jsps.2023.04.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 04/28/2023] [Indexed: 05/31/2023] Open
Abstract
Launaea fragilis (Asso) Pau (Family: Asteraceae) is a wild medicinal plant that has been used in the folklore as a potential treatment for numerous ailments such as skin diseases, diarrhea, infected wounds, inflammation, child fever and hepatic pain. This study explored the chemical constitution, in-vivo toxicity, antimicrobial, antioxidant, and enzyme inhibition potential of ethanolic extract of L. fragilis (EELF). Additionally, in-silico docking studies of predominant compounds were performed against in-vitro tested enzymes. Similarly, in-silico ADMET properties of the compounds were performed to determine their pharmacokinetics, physicochemical properties, and toxicity profiles. The EELF was found rich in TFC (73.45 ± 0.25 mg QE/g) and TPC (109.02 ± 0.23 mg GAE/g). GC-MS profiling of EELF indicated the presence of a total of 47 compounds mainly fatty acids and essential oil. EELF showed no toxicity or growth retardation in chicks up to 300 mg/kg with no effect on the biochemistry and hematology of the chicks. EELF gave promising antioxidant activity through the CUPRAC method with an IC50 value of 13.14 ± 0.18 µg/ml. The highest inhibition activity against tyrosinase followed by acetylcholinesterase and α-Glucosidase was detected. Similarly, the antimicrobial study revealed the extract with good antibacterial and antiviral activity. A good docking score was observed in the in silico computational study of the predominant compounds. The findings revealed L. fragilis as a biocompatible, potent therapeutic alternative and suggest isolation and further in vivo pharmacological studies.
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Affiliation(s)
- Duraiz Ahmed Khan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, The Islamia University of Bahawalpur 63100, Punjab, Pakistan
| | - Afia Shahid
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, The Islamia University of Bahawalpur 63100, Punjab, Pakistan
| | - Asmaa E. Sherif
- Department of Pharmacognosy, College of Pharmacy, Prince Sattam Bin Abdul Aziz University, Alkharj 11942, Saudi Arabia
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Hanan Y. Aati
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11495, Saudi Arabia
| | - Muhammad Abdullah
- Cholistan Institute of Desert Studies, The Islamia University of Bahawalpur 63100, Punjab, Pakistan
| | - Khalid Mehmood
- Department of Clinical Medicine and Surgery, Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur 63100, Punjab, Pakistan
| | - Musaddique Hussain
- Department of Pharmacology, Faculty of Pharmacy, The Islamia University of Bahawalpur 63100, Punjab, Pakistan
| | - Abdul Basit
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai 90112, Songkhla, Thailand
- Drug Delivery System Excellence Center, Prince of Songkla University, Hat Yai 90112, Songkhla, Thailand
| | - Bilal Ahmad Ghalloo
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, The Islamia University of Bahawalpur 63100, Punjab, Pakistan
- Department of Medicinal Chemistry, College of Pharmacy, University of Minnesota 55454, MN, USA
| | - Kashif ur Rehman Khan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, The Islamia University of Bahawalpur 63100, Punjab, Pakistan
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Nallasamy P, Rajamohamed BS, Jeyaraman J, Kathirvel B, Natarajan S. Regenerative marine waste towards CaCO 3 nanoformulation for Alzheimer's therapy. ENVIRONMENTAL RESEARCH 2023; 225:115631. [PMID: 36889568 DOI: 10.1016/j.envres.2023.115631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/04/2023] [Accepted: 03/04/2023] [Indexed: 06/18/2023]
Abstract
Alzheimer's disorder (AD) is associated with behavioural and cognitive destruction with due respect to the neurological degeneration. Conventional therapeutic approach for treatment of AD using neuroprotective drugs suffered certain limitations such as poor solubility, insufficient bioavailability, adverse side effects at higher dose and ineffective permeability on blood brain barrier (BBB). Development of nanomaterial based drug delivery system helped to overcome these barriers. Hence the present work focused on encapsulating neuroprotective drug citronellyl acetate within CaCO3 nanoparticles to develop neuroprotective CaCO3 nanoformulation (CA@CaCO3 NFs). CaCO3 was derived from marine conch shell waste, while the neuroprotective drug citronellyl acetate was scrutinized by in-silico high throughput screening. In-vitro findings revealed that CA@CaCO3 nanoformulation exhibited enhanced free radical scavenging activity of 92% (IC50 value - 29.27 ± 2.6 μg/ml), AChE inhibition of 95% (IC50 value - 25.6292 ± 1.5 μg/ml) at its maximum dose (100 μg/ml). CA@CaCO3 NFs attenuated the aggregation of β-amyloid peptide (Aβ) and also disaggregated the preformed mature plaques the major risk factor for AD. Overall, the present study reveals that CaCO3 nanoformulations exhibits potent neuroprotective potential when compared to the CaCO3 nanoparticles alone and citronellyl acetate alone due to the sustained drug release and synergistic effect of CaCO3 nanoparticles and citronellyl acetate depicting the fact that CaCO3 can act as promising drug delivery system for treatment of neurodegenerative and CNS related disorders.
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Affiliation(s)
- Prakashkumar Nallasamy
- Bionanomaterials Research Lab, Department of Nanoscience and Technology, Alagappa University, Tamilnadu, India
| | | | | | - Brindhadevi Kathirvel
- Center for Transdisciplinary Research (CFTR), Department of Pharmacology, Saveethe Dental College, Saveetha Institute of Medical and Technical Sciences, Saveeth University, Chennai, India
| | - Suganthy Natarajan
- Bionanomaterials Research Lab, Department of Nanoscience and Technology, Alagappa University, Tamilnadu, India.
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28
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Asproni B, Catto M, Loriga G, Murineddu G, Corona P, Purgatorio R, Cichero E, Fossa P, Scarano N, Martínez AL, Brea J, Pinna GA. Novel thienocycloalkylpyridazinones as useful scaffolds for acetylcholinesterase inhibition and serotonin 5-HT6 receptor interaction. Bioorg Med Chem 2023; 84:117256. [PMID: 37003157 DOI: 10.1016/j.bmc.2023.117256] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 03/10/2023] [Accepted: 03/17/2023] [Indexed: 03/31/2023]
Abstract
A library of eighteen thienocycloalkylpyridazinones was synthesized for human acetylcholinesterase (hAChE) and butyrylcholinesterase (hBChE) inhibition and serotonin 5-HT6 receptor subtype interaction by following a multitarget-directed ligand approach (MTDL), as a suitable strategy for treatment of Alzheimer's disease (AD). The novel compounds featured a tricyclic scaffold, namely thieno[3,2-h]cinnolinone, thienocyclopentapyridazinone and thienocycloheptapyridazinone, connected through alkyl chains of variable length to proper amine moieties, most often represented by N-benzylpiperazine or 1-(phenylsulfonyl)-4-(piperazin-1-ylmethyl)-1H-indole as structural elements addressing AChE and 5-HT6 interaction, respectively. Our study highlighted the versatility of thienocycloalkylpyridazinones as useful architectures for AChE interaction, with several N-benzylpiperazine-based analogues emerging as potent and selective hAChE inhibitors with IC50 in the 0.17-1.23 μM range, exhibiting low to poor activity for hBChE (IC50 = 4.13-9.70 μM). The introduction of 5-HT6 structural moiety phenylsulfonylindole in place of N-benzylpiperazine, in tandem with a pentamethylene linker, gave potent 5-HT6 thieno[3,2-h]cinnolinone and thienocyclopentapyridazinone-based ligands both displaying hAChE inhibition in the low micromolar range and unappreciable activity towards hBChE. While docking studies provided a rational structural explanation for AChE/BChE enzyme and 5-HT6 receptor interaction, in silico prediction of ADME properties of tested compounds suggested further optimization for development of such compounds in the field of MTDL for AD.
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29
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Espinosa-Jiménez T, Cano A, Sánchez-López E, Olloquequi J, Folch J, Bulló M, Verdaguer E, Auladell C, Pont C, Muñoz-Torrero D, Parcerisas A, Camins A, Ettcheto M. A novel rhein-huprine hybrid ameliorates disease-modifying properties in preclinical mice model of Alzheimer's disease exacerbated with high fat diet. Cell Biosci 2023; 13:52. [PMID: 36895036 PMCID: PMC9999531 DOI: 10.1186/s13578-023-01000-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 02/28/2023] [Indexed: 03/11/2023] Open
Abstract
BACKGROUND Alzheimer's disease (AD) is characterized by a polyetiological origin. Despite the global burden of AD and the advances made in AD drug research and development, the cure of the disease remains elusive, since any developed drug has demonstrated effectiveness to cure AD. Strikingly, an increasing number of studies indicate a linkage between AD and type 2 diabetes mellitus (T2DM), as both diseases share some common pathophysiological features. In fact, β-secretase (BACE1) and acetylcholinesterase (AChE), two enzymes involved in both conditions, have been considered promising targets for both pathologies. In this regard, due to the multifactorial origin of these diseases, current research efforts are focusing on the development of multi-target drugs as a very promising option to derive effective treatments for both conditions. In the present study, we evaluated the effect of rhein-huprine hybrid (RHE-HUP), a synthesized BACE1 and AChE inhibitor, both considered key factors not only in AD but also in metabolic pathologies. Thus, the aim of this study is to evaluate the effects of this compound in APP/PS1 female mice, a well-established familial AD mouse model, challenged by high-fat diet (HFD) consumption to concomitantly simulate a T2DM-like condition. RESULTS Intraperitoneal treatment with RHE-HUP in APP/PS1 mice for 4 weeks reduced the main hallmarks of AD, including Tau hyperphosphorylation, Aβ42 peptide levels and plaque formation. Moreover, we found a decreased inflammatory response together with an increase in different synaptic proteins, such as drebrin 1 (DBN1) or synaptophysin, and in neurotrophic factors, especially in BDNF levels, correlated with a recovery in the number of dendritic spines, which resulted in memory improvement. Notably, the improvement observed in this model can be attributed directly to a protein regulation at central level, since no peripheral modification of those alterations induced by HFD consumption was observed. CONCLUSIONS Our results suggest that RHE-HUP could be a new candidate for the treatment of AD, even for individuals with high risk due to peripheral metabolic disturbances, given its multi-target profile which allows for the improvement of some of the most important hallmarks of the disease.
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Affiliation(s)
- Triana Espinosa-Jiménez
- Department of Pharmacology, Toxicology and Therapeutic Chemistry, Faculty of Pharmacy and Food Science, Universitat de Barcelona, Barcelona, Spain.,Institute of Neuroscience, Universitat de Barcelona, Barcelona, Spain.,Biomedical Research Networking Centre in Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Amanda Cano
- Biomedical Research Networking Centre in Neurodegenerative Diseases (CIBERNED), Madrid, Spain.,Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, Universitat de Barcelona, Barcelona, Spain.,Ace Alzheimer Center Barcelona-International University of Catalunya (UIC), Barcelona, Spain.,Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, Barcelona, Spain
| | - Elena Sánchez-López
- Biomedical Research Networking Centre in Neurodegenerative Diseases (CIBERNED), Madrid, Spain.,Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, Universitat de Barcelona, Barcelona, Spain.,Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, Barcelona, Spain.,Unit of Synthesis and Biomedical Applications of Peptides, IQAC-CSIC, 08034, Barcelona, Spain
| | - Jordi Olloquequi
- Institute of Neuroscience, Universitat de Barcelona, Barcelona, Spain.,Biomedical Research Networking Centre in Neurodegenerative Diseases (CIBERNED), Madrid, Spain.,Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Sciences, Universitat de Barcelona, Barcelona, Spain.,Institute of Biomedical Sciences, Faculty of Health Sciences, Universidad Autónoma de Chile, Talca, Chile
| | - Jaume Folch
- Biomedical Research Networking Centre in Neurodegenerative Diseases (CIBERNED), Madrid, Spain.,Institut d'Investigació Sanitària Pere Virgili (IISPV), 43201, Reus, Spain.,Nutrition and Metabolic Health Research Group, Institute of Health Pere Virgili-IISPV, 43201, Reus, Spain
| | - Mònica Bulló
- Institut d'Investigació Sanitària Pere Virgili (IISPV), 43201, Reus, Spain.,Nutrition and Metabolic Health Research Group, Institute of Health Pere Virgili-IISPV, 43201, Reus, Spain.,CIBER Physiology of Obesity and Nutrition (CIBEROBN), Carlos III Health Institute, 28029, Madrid, Spain
| | - Ester Verdaguer
- Institute of Neuroscience, Universitat de Barcelona, Barcelona, Spain.,Biomedical Research Networking Centre in Neurodegenerative Diseases (CIBERNED), Madrid, Spain.,Department of Cellular Biology, Physiology and Immunology, Faculty of Biology, Universitat de Barcelona, Barcelona, Spain
| | - Carme Auladell
- Institute of Neuroscience, Universitat de Barcelona, Barcelona, Spain.,Biomedical Research Networking Centre in Neurodegenerative Diseases (CIBERNED), Madrid, Spain.,Department of Cellular Biology, Physiology and Immunology, Faculty of Biology, Universitat de Barcelona, Barcelona, Spain
| | - Caterina Pont
- Laboratory of Medicinal Chemistry (CSIC Associated Unit), Faculty of Pharmacy and Food Sciences, Universitat de Barcelona, Barcelona, Spain
| | - Diego Muñoz-Torrero
- Laboratory of Medicinal Chemistry (CSIC Associated Unit), Faculty of Pharmacy and Food Sciences, Universitat de Barcelona, Barcelona, Spain.,Institute of Biomedicine (IBUB), Universitat de Barcelona, Barcelona, Spain
| | - Antoni Parcerisas
- Department of Basic Sciences, Universitat Internacional de Catalunya (UIC), Sant Cugat del Vallès, Spain
| | - Antoni Camins
- Department of Pharmacology, Toxicology and Therapeutic Chemistry, Faculty of Pharmacy and Food Science, Universitat de Barcelona, Barcelona, Spain.,Institute of Neuroscience, Universitat de Barcelona, Barcelona, Spain.,Biomedical Research Networking Centre in Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Miren Ettcheto
- Department of Pharmacology, Toxicology and Therapeutic Chemistry, Faculty of Pharmacy and Food Science, Universitat de Barcelona, Barcelona, Spain. .,Institute of Neuroscience, Universitat de Barcelona, Barcelona, Spain. .,Biomedical Research Networking Centre in Neurodegenerative Diseases (CIBERNED), Madrid, Spain. .,Unitat de Farmacologia i Farmacognòsia, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona, Av. Joan XXIII 27/31, 08028, Barcelona, Spain.
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Elsbaey M, Igarashi Y, Ibrahim MAA, Elattar E. Click-designed vanilloid-triazole conjugates as dual inhibitors of AChE and Aβ aggregation. RSC Adv 2023; 13:2871-2883. [PMID: 36756452 PMCID: PMC9850456 DOI: 10.1039/d2ra07539c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Accepted: 01/09/2023] [Indexed: 01/20/2023] Open
Abstract
Based on their reported neuroprotective properties, vanilloids provide a good starting point for the synthesis of anti-Alzheimer's disease (AD) agents. In this context, nine new 1,2,3-triazole conjugates of vanilloids were synthesized via click chemistry. The compounds were tested for their effect on acetylcholine esterase (AChE) and amyloid-beta peptide (Aβ) aggregation. The triazole esters (E)-(1-(4-hydroxy-3-methoxybenzyl)-1H-1,2,3-triazol-4-yl)methyl 3-(4-hydroxy-3 methoxyphenyl)acrylate 9 and (1-(4-hydroxy-3-methoxybenzyl)-1H-1,2,3-triazol-4-yl)methyl-4-hydroxy-3-methoxybenzoate 8 displayed dual inhibitory activity for AChE and Aβ aggregation with IC50 values of 0.47/0.31 μM and 1.2/0.95 μM, respectively, as compared to donepezil (0.27 μM) and tacrine (0.41 μM), respectively. The results showed that the triazole ester moiety is more favorable for the activity than the triazole ether moiety. This could be attributed to the longer length of the spacer between the two vanillyl moieties in the triazole esters. Furthermore, the binding affinities and modes of the triazole esters 9 and 8 were examined against AChE and Aβ utilizing a combination of docking predictions and molecular dynamics (MD) simulations. Docking computations revealed promising binding affinity of triazole esters 9 and 8 as potential AChE, Aβ40, and Aβ42 inhibitors with docking scores of -10.4 and -9.4 kcal mol-1, -5.8 and -4.7 kcal mol-1, and -3.3 and -2.9 kcal mol-1, respectively. The stability and binding energies of triazole esters 9 and 8 complexed with AChE, Aβ40, and Aβ42 were measured and compared to donepezil and tacrine over 100 ns MD simulations. According to the estimated binding energies, compounds 9 and 8 displayed good binding affinities with AChE, Aβ42, and Aβ40 with average ΔG binding values of -32.9 and -31.8 kcal mol-1, -12.0 and -10.5 kcal mol-1, and -20.4 and -16.6 kcal mol-1, respectively. Post-MD analyses demonstrated high steadiness for compounds 9 and 8 with AChE and Aβ during the 100 ns MD course. This work suggests the triazole conjugate of vanilloids as a promising skeleton for developing multi-target potential AD therapeutics.
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Affiliation(s)
- Marwa Elsbaey
- Pharmacognosy Department, Faculty of Pharmacy, Mansoura University Mansoura 35516 Egypt
| | - Yasuhiro Igarashi
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University 5180 Kurokawa, Imizu Toyama 939-0398 Japan
| | - Mahmoud A A Ibrahim
- Computational Chemistry Laboratory, Chemistry Department, Faculty of Science, Minia University 61519 Egypt
- School of Health Sciences, University of KwaZulu-Natal Westville Durban 4000 South Africa
| | - Eman Elattar
- Pharmacognosy Department, Faculty of Pharmacy, Mansoura University Mansoura 35516 Egypt
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31
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Behl T, Kaur I, Sehgal A, Singh S, Sharma N, Gupta S, Albratty M, Najmi A, Alhazmi HA, Bungau S. AChE as a spark in the Alzheimer's blaze - Antagonizing effect of a cyclized variant. Ageing Res Rev 2023; 83:101787. [PMID: 36368649 DOI: 10.1016/j.arr.2022.101787] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 11/07/2022] [Indexed: 11/09/2022]
Abstract
The amyloid precursor protein (APP), presenilin 1 (PS1), amyloid beta (Aβ), and GSK3 are the effectors, which are significantly associated with progression of Alzheimer's Disease (AD) and its symptoms. A significant protein, acetylcholinesterase (AChE) becomes dysfunctional as a result of cholinergic neuronal loss in AD pathology. However, certain associated peptides potentiate the release of primary neuropathological hallmarks, i.e., senile plaque and neurofibrillary tangles (NFTs), by modulating the alpha 7 acetylcholinesterase receptor (α7nAChR). The AChE variants, T30 and T14 have also been found to be elevated in AD patients and mimic the toxic actions of pathological events in patients. The manuscript discusses the significance of AChE inhibitors in AD therapeutics, by indicating the disastrous role of molecular alterations and elevation of AChE, accompanied with the downstream effects instigated by the peptide, supported by clinical evidence and investigations. The cyclized variant of AChE peptide, NBP14 has been identified as a novel candidate that reverses the harmful effects of T30, T14 and Aβ, mainly calcium influx, cell viability and AChE release. The review aims to grab the attention of neuro-researchers towards the significance of triggering effectors in propagating AD and role of AChE in regulating them, which can potentially ace the development of reliable therapeutic candidates, similar to NBP14, to mitigate neurodegeneration.
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Affiliation(s)
- Tapan Behl
- School of Health Sciences and Technology, University of Petroleum and Energy Studies, Bidohli, Uttarakhand, India.
| | - Ishnoor Kaur
- University of Glasgow, College of Medical, Veterinary and Life Sciences, Glasgow, United Kingdom
| | - Aayush Sehgal
- GHG Khalsa College of Pharmacy, Gurusar Sadhar, Ludhiana, Punjab, India
| | - Sukhbir Singh
- MM College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, Haryana, India
| | - Neelam Sharma
- MM College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, Haryana, India
| | - Sumeet Gupta
- MM College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, Haryana, India
| | - Mohammed Albratty
- Department of Pharmaceutical Chemistry and Pharmacognosy, College of Pharmacy, Jazan University, Jazan, Saudi Arabia
| | - Asim Najmi
- Department of Pharmaceutical Chemistry and Pharmacognosy, College of Pharmacy, Jazan University, Jazan, Saudi Arabia
| | - Hassan A Alhazmi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jazan University, Jazan, Saudi Arabia; Substance Abuse and Toxicology, Research Centre, Jazan University, Jazan, Saudi Arabia
| | - Simona Bungau
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, Oradea, Romania; Doctoral School of Biomedical Sciences, University of Oradea, Oradea, Romania
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32
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El-Hussieny M, ElMansy MF, Ewies EF, El-Rashedy AA, Ibrahim AY, El-Sayed NF. Synthesis, biological evaluation, and molecular dynamics of novel coumarin based phosphorothioates as cholinesterase inhibitors. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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33
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Rouhi N, Akhgari A, Orouji N, Nezami A, Rahimzadegan M, Kamali H. Recent progress in the graphene-based biosensing approaches for the detection of Alzheimer's biomarkers. J Pharm Biomed Anal 2023; 222:115084. [DOI: 10.1016/j.jpba.2022.115084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 09/15/2022] [Accepted: 09/26/2022] [Indexed: 12/01/2022]
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34
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Lima JDR, Ferreira MKA, Sales KVB, da Silva AW, Marinho EM, Magalhães FEA, Marinho ES, Marinho MM, da Rocha MN, Bandeira PN, Teixeira AMR, de Menezes JESA, Dos Santos HS. Diterpene Sonderianin isolated from Croton blanchetianus exhibits acetylcholinesterase inhibitory action and anxiolytic effect in adult zebrafish ( Danio rerio) by 5-HT system. J Biomol Struct Dyn 2022; 40:13625-13640. [PMID: 34696690 DOI: 10.1080/07391102.2021.1991477] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Croton blanchetianus is known as 'marmeleiro preto', a very widespread shrub in Northeast Brazil. Terpenoids, steroids and phenolic compounds are among the reported secondary metabolites of the Croton genus that are a potential source of bioactive compounds. This study evaluated the anxiolytic potential of clerodine-type diterpene, sonderianin (CBWS) isolated from the stem bark of C. blanchetianus and its mechanism of action in adult zebrafish (Danio rerio) (ZFa). The anticonvulsant and anti-acetylcholinesterase effects have also been explored. ZFa (n = 6/group) were treated intraperitoneally (ip; 20 µL) with CBWS (4, 12 and 40 mg/kg) and vehicle (3% DMSO; 20 µL) and subjected to locomotor activity tests, as well as toxicity acute 96 h. CBWS was also administered for analysis in the light/dark test. The involvement of the serotonergic system (5-HT) was investigated using 5-HTR1, 5-HTR2A/2C and 5-HTR3A/3B receptor antagonists. Anxiolytic doses were tested for pentylenetetrazol-induced seizure in ZFa. The inhibitory activity of the enzyme acetylcholinesterase (AChE) was measured. CBWS was not considered toxic and reduced locomotor activity. The results of the present study identified for the first time the interaction of the diterpene sonderianina in the CNS. This study provides evidence that CBWS has an anxiolytic effect mediated by serotonergic (5-HT) involvement and anti-acetylcholinesterase action. The 5-HTR1 and 5-HTR2A/2C receptors may be implicated in the low anticonvulsant effect in CBWS.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Joyce Dos Reis Lima
- State University of Ceará, Science and Technology, Graduate Program in Natural Sciences, Fortaleza, CE, Brazil
| | | | | | - Antônio Wlisses da Silva
- Northeast Biotechnology Network, Graduate Program of Biotechnology, State University of Ceará, Fortaleza, CE, Brazil
| | - Emanuelle Machado Marinho
- Department of Analytical Chemistry and Physical Chemistry, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Francisco Ernani Alves Magalhães
- Department of Chemistry, Laboratory of Natural Products Bioprospecting and Biotechnology, State University of Ceará, CECITEC Campus, Tauá, CE, Brazil
| | - Emmanuel Silva Marinho
- State University of Ceará, Faculty of Philosophy Dom Aureliano Matos, Limoeiro do Norte, CE, Brazil
| | - Márcia Machado Marinho
- Faculty of Education, Science and Letters of Iguatu, State University of Ceará, Iguatu, CE, Brazil
| | - Matheus Nunes da Rocha
- State University of Ceará, Faculty of Philosophy Dom Aureliano Matos, Limoeiro do Norte, CE, Brazil
| | | | | | | | - Hélcio Silva Dos Santos
- State University of Ceará, Science and Technology, Graduate Program in Natural Sciences, Fortaleza, CE, Brazil.,Northeast Biotechnology Network, Graduate Program of Biotechnology, State University of Ceará, Fortaleza, CE, Brazil.,Department of Biological Chemistry, Regional University of Cariri, Crato, Ceará, Brazil.,Chemistry Course, State University of Vale do Acaraú, Sobral, CE, Brazil
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Kim KJ, Hwang ES, Kim MJ, Rha CS, Song MC, Maeng S, Park JH, Kim DO. Effects of Phenolic-Rich Pinus densiflora Extract on Learning, Memory, and Hippocampal Long-Term Potentiation in Scopolamine-Induced Amnesic Rats. Antioxidants (Basel) 2022; 11:antiox11122497. [PMID: 36552705 PMCID: PMC9774118 DOI: 10.3390/antiox11122497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/07/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022] Open
Abstract
Alzheimer's disease is the most common type of dementia with cognitive impairment. Various plant-derived phenolics are known to alleviate cognitive impairment in Alzheimer's disease by radical scavenging and strengthening synaptic plasticity activities. Here, we examined the cognition-improving effect of Pinus densiflora Sieb. et Zucc. bark extract (PBE). We identified and quantified phenolics in the PBE using a UHPLC-Orbitrap mass spectrometer. To evaluate the cognition-enhancing effects of PBE, scopolamine-induced amnesic Sprague-Dawley (SD) rats (5 weeks old) and ion channel antagonist-induced organotypic hippocampal slices of SD rats (7 days old) were used. Twenty-three phenolics were tentatively identified in PBE, 10 of which were quantified. Oral administration of PBE to the scopolamine-induced SD rats improved cognitive impairment in behavioral tests. PBE-fed SD rats showed significantly improved antioxidant indices (superoxide dismutase and catalase activities, and malondialdehyde content) and reduced acetylcholinesterase activity in hippocampal lysate compared with the scopolamine group. PBE increased the long-term potentiation (LTP) induction and rescued LTP from blockades by the muscarinic cholinergic receptor antagonist (scopolamine) and N-methyl-D-aspartate channel antagonist (2-amino-5-phosphonovaleric acid) in the organotypic hippocampal slices. These results suggest that polyphenol-rich PBE is applicable as a cognition-improving agent due to its antioxidant properties and enhancement of LTP induction.
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Affiliation(s)
- Kwan Joong Kim
- Graduate School of Biotechnology, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Eun-Sang Hwang
- Department of Gerontology (AgeTech-Service Convergence Major), Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Min-Jeong Kim
- Department of Food Science and Biotechnology, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Chan-Su Rha
- AMOREPACIFIC R&I Center, Yongin 17074, Republic of Korea
| | - Myoung Chong Song
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Sungho Maeng
- Department of Gerontology (AgeTech-Service Convergence Major), Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Ji-Ho Park
- Department of Gerontology (AgeTech-Service Convergence Major), Graduate School of East-West Medical Science, Kyung Hee University, Yongin 17104, Republic of Korea
- Correspondence: (J.-H.P.); (D.-O.K.); Tel.: +82-31-201-2916 (J.-H.P.); Tel.: +82-31-201-3796 (D.-O.K.)
| | - Dae-Ok Kim
- Graduate School of Biotechnology, Kyung Hee University, Yongin 17104, Republic of Korea
- Department of Food Science and Biotechnology, Kyung Hee University, Yongin 17104, Republic of Korea
- Correspondence: (J.-H.P.); (D.-O.K.); Tel.: +82-31-201-2916 (J.-H.P.); Tel.: +82-31-201-3796 (D.-O.K.)
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36
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Multitargeted Molecular Docking and Dynamic Simulation Studies of Bioactive Compounds from Rosmarinus officinalis against Alzheimer’s Disease. Molecules 2022; 27:molecules27217241. [DOI: 10.3390/molecules27217241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 09/09/2022] [Accepted: 09/13/2022] [Indexed: 11/16/2022] Open
Abstract
Alzheimer’s disease (AD) has been associated with the hallmark features of cholinergic dysfunction, amyloid beta (Aβ) aggregation and impaired synaptic transmission, which makes the associated proteins, such as β-site amyloid precursor protein cleaving enzyme 1 (BACE I), acetylcholine esterase (AChE) and synapsin I, II and III, major targets for therapeutic intervention. The present study investigated the therapeutic potential of three major phytochemicals of Rosmarinus officinalis, ursolic acid (UA), rosmarinic acid (RA) and carnosic acid (CA), based on their binding affinity with AD-associated proteins. Detailed docking studies were conducted using AutoDock vina followed by molecular dynamic (MD) simulations using Amber 20. The docking analysis of the selected molecules showed the binding energies of their interaction with the target proteins, while MD simulations comprising root mean square deviation (RMSD), root mean square fluctuation (RMSF) and molecular mechanics/generalized born surface area (MM/GBSA) binding free energy calculations were carried out to check the stability of bound complexes. The drug likeness and the pharmacokinetic properties of the selected molecules were also checked through the Lipinski filter and ADMETSAR analysis. All these bioactive compounds demonstrated strong binding affinity with AChE, BACE1 and synapsin I, II and III. The results showed UA and RA to be potential inhibitors of AChE and BACE1, exhibiting binding energies comparable to those of donepezil, used as a positive control. The drug likeness and pharmacokinetic properties of these compounds also demonstrated drug-like characteristics, indicating the need for further in vitro and in vivo investigations to ascertain their therapeutic potential for AD.
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Lahlou RA, Samba N, Soeiro P, Alves G, Gonçalves AC, Silva LR, Silvestre S, Rodilla J, Ismael MI. Thymus hirtus Willd. ssp. algeriensis Boiss. and Reut: A Comprehensive Review on Phytochemistry, Bioactivities, and Health-Enhancing Effects. Foods 2022; 11:3195. [PMID: 37430944 PMCID: PMC9601415 DOI: 10.3390/foods11203195] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/29/2022] [Accepted: 10/03/2022] [Indexed: 11/16/2022] Open
Abstract
Members of the Lamiaceae family are considered chief sources of bioactive therapeutic agents. They are important ornamental, medicinal, and aromatic plants, many of which are used in traditional and modern medicine and in the food, cosmetic, and pharmaceutical industries. In North Africa, on the Mediterranean side, there is the following particularly interesting Lamiaceous species: Thymus hirtus Willd. sp. Algeriensis Boiss. Et Reut. The populations of this endemic plant are distributed from the subhumid to the lower arid zone and are mainly employed as ethnomedicinal remedies in the following Maghreb countries: Algeria, Libya, Morocco, and Tunisia. In fact, they have been applied as antimicrobial agents, antispasmodics, astringents, expectorants, and preservatives for several food products. The species is commonly consumed as a tea or infusion and is used against hypercholesterolemia, diabetes, respiratory ailments, heart disease, and food poisoning. These medicinal uses are related to constituents with many biological characteristics, including antimicrobial, antioxidant, anticancer, anti-ulcer, anti-diabetic, insecticidal, and anti-inflammatory activities. This review aims to present an overview of the botanical characteristics and geographical distribution of Thymus algeriensis Boiss. Et Reut and its traditional uses. This manuscript also examines the phytochemical profile and its correlation with biological activities revealed by in vitro and in vivo studies.
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Affiliation(s)
- Radhia Aitfella Lahlou
- Chemistry Department, University of Beira Interior, 6201-001 Covilhã, Portugal
- Fiber Materials and Environmental Technologies (FibEnTech), University of Beira Interior, 6201-001 Covilhã, Portugal
- Biology Department, Faculty of Sciences, University of M’Hamed Bougara, Boumerdes 35000, Algeria
- CICS-UBI—Health Sciences Research Center, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Nsevolo Samba
- Chemistry Department, University of Beira Interior, 6201-001 Covilhã, Portugal
- Fiber Materials and Environmental Technologies (FibEnTech), University of Beira Interior, 6201-001 Covilhã, Portugal
| | - Pedro Soeiro
- CICS-UBI—Health Sciences Research Center, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Gilberto Alves
- CICS-UBI—Health Sciences Research Center, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Ana Carolina Gonçalves
- CICS-UBI—Health Sciences Research Center, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Luís R. Silva
- CICS-UBI—Health Sciences Research Center, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
- CPIRN-UDI/IPG—Centro de Potencial e Inovação em Recursos Naturais, Unidade de Investigação Para o Desenvolvimento do Interior do Instituto Politécnico da Guarda, 6300-559 Guarda, Portugal
| | - Samuel Silvestre
- Chemistry Department, University of Beira Interior, 6201-001 Covilhã, Portugal
- CICS-UBI—Health Sciences Research Center, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
- CNC—Center for Neuroscience and Cell Biology, University of Coimbra, Rua Larga, 3004-517 Coimbra, Portugal
| | - Jesus Rodilla
- Chemistry Department, University of Beira Interior, 6201-001 Covilhã, Portugal
- Fiber Materials and Environmental Technologies (FibEnTech), University of Beira Interior, 6201-001 Covilhã, Portugal
| | - Maria Isabel Ismael
- Chemistry Department, University of Beira Interior, 6201-001 Covilhã, Portugal
- Fiber Materials and Environmental Technologies (FibEnTech), University of Beira Interior, 6201-001 Covilhã, Portugal
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Sepehri S, Saeedi M, Larijani B, Mahdavi M. Recent developments in the design and synthesis of benzylpyridinium salts: Mimicking donepezil hydrochloride in the treatment of Alzheimer's disease. Front Chem 2022; 10:936240. [PMID: 36226120 PMCID: PMC9549744 DOI: 10.3389/fchem.2022.936240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 07/06/2022] [Indexed: 12/02/2022] Open
Abstract
Background: Alzheimer's disease (AD) is an advanced and irreversible degenerative disease of the brain, recognized as the key reason for dementia among elderly people. The disease is related to the reduced level of acetylcholine (ACh) in the brain that interferes with memory, learning, emotional, and behavior responses. Deficits in cholinergic neurotransmission are responsible for the creation and progression of numerous neurochemical and neurological illnesses such as AD. Aim: Herein, focusing on the fact that benzylpyridinium salts mimic the structure of donepezil hydrochlorideas a FDA-approved drug in the treatment of AD, their synthetic approaches and inhibitory activity against cholinesterases (ChEs) were discussed. Also, molecular docking results and structure-activity relationship (SAR) as the most significant concept in drug design and development were considered to introduce potential lead compounds. Key scientific concepts: AChE plays a chief role in the end of nerve impulse transmission at the cholinergic synapses. In this respect, the inhibition of AChE has been recognized as a key factor in the treatment of AD, Parkinson's disease, senile dementia, myasthenia gravis, and ataxia. A few drugs such as donepezil hydrochloride are prescribed for the improvement of cognitive dysfunction and memory loss caused by AD. Donepezil hydrochloride is a piperidine-containing compound, identified as a well-known member of the second generation of AChE inhibitors. It was established to treat AD when it was assumed that the disease is associated with a central cholinergic loss in the early 1980s. In this review, synthesis and anti-ChE activity of a library of benzylpyridinium salts were reported and discussed based on SAR studies looking for the most potent substituents and moieties, which are responsible for inducing the desired activity even more potent than donepezil. It was found that linking heterocyclic moieties to the benzylpyridinium salts leads to the potent ChE inhibitors. In this respect, this review focused on the recent reports on benzylpyridinium salts and addressed the structural features and SARs to get an in-depth understanding of the potential of this biologically improved scaffold in the drug discovery of AD.
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Affiliation(s)
- Saghi Sepehri
- Department of Medicinal Chemistry, School of Pharmacy, Ardabil University of Medical Sciences, Ardabil, Iran
- Pharmaceutical Sciences Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Mina Saeedi
- Medicinal Plants Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
- Persian Medicine and Pharmacy Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Mahdavi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran
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39
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Rajamanickam G, SL M. Bio-guided isolation of anti-Alzheimer’s compounds from Phyllanthus niruri and role of niruriflavone in the reversal of aluminum chloride-induced neurobehavioral and biochemical changes in an animal model. Med Chem Res 2022. [DOI: 10.1007/s00044-022-02944-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Siddique YH, Naz F, Rahul, Varshney H. Comparative study of rivastigmine and galantamine on the transgenic Drosophila model of Alzheimer's disease. CURRENT RESEARCH IN PHARMACOLOGY AND DRUG DISCOVERY 2022; 3:100120. [PMID: 35992376 PMCID: PMC9389239 DOI: 10.1016/j.crphar.2022.100120] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 07/20/2022] [Accepted: 07/21/2022] [Indexed: 12/13/2022] Open
Abstract
Alzheimer's Disease (AD) is characterized as a progressive neurodegenerative disease most commonly associated with memory deficits and cognitive decline. The formation of amyloid plaques and neurofibrillary tangles are important pathological markers of AD. The accumulation of amyloid plaques and neurofibrillary tangles leads to the loss of neurons including the cholinergic neurons thus decreasing the levels of acetylcholine (a neurotransmitter). To reduce the AD symptoms cholinesterase inhibitors are widely used to decrease the hydrolysis of acetylcholine released from presynaptic neurons. In the present study we have studied the effect of rivastigmine and galantamine (commonly used cholinesterase inhibitors) on the transgenic Drosophila model of AD expressing human Aβ-42 in the neurons. The effect of similar doses of rivastigmine and galantamine (i.e. 0.1,1 and 10 mM) was studied on the climbing ability, lifespan, oxidative stress markers, caspase 9 and 3, acetylcholinesterase activity and on the formation of Aβ-42 aggregates. The results suggest that the rivastigmine is more potent in reducing the oxidative stress and improving climbing ability of AD flies. Both the drugs were found to be effective in increasing the lifespan of AD flies. Galantamine was found to be a more potent inhibitor of acetylcholinesterase compared to rivastigmine. Galantamine prevents the formation of Aβ-42 aggregates more effectively compared to rivastigmine.
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Affiliation(s)
- Yasir Hasan Siddique
- Drosophila Transgenic Laboratory, Section of Genetics, Department of Zoology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh-202002, Uttar Pradesh, India
| | - Falaq Naz
- Drosophila Transgenic Laboratory, Section of Genetics, Department of Zoology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh-202002, Uttar Pradesh, India
| | - Rahul
- Drosophila Transgenic Laboratory, Section of Genetics, Department of Zoology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh-202002, Uttar Pradesh, India
| | - Himanshi Varshney
- Drosophila Transgenic Laboratory, Section of Genetics, Department of Zoology, Faculty of Life Sciences, Aligarh Muslim University, Aligarh-202002, Uttar Pradesh, India
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Liu W, Wu L, Liu W, Tian L, Chen H, Wu Z, Wang N, Liu X, Qiu J, Feng X, Xu Z, Jiang X, Zhao Q. Design, synthesis and biological evaluation of novel coumarin derivatives as multifunctional ligands for the treatment of Alzheimer's disease. Eur J Med Chem 2022; 242:114689. [PMID: 36007469 DOI: 10.1016/j.ejmech.2022.114689] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 08/12/2022] [Accepted: 08/12/2022] [Indexed: 12/12/2022]
Abstract
Multi-targeted directed ligands (MTDLs) are emerging as promising Alzheimer's disease (AD) therapeutic possibilities. Coumarin is a multifunctional backbone with extensive bioactivity that has been utilized to develop innovative anti-neurodegenerative properties and is a desirable starting point for the construction of MTDLs. Herein, we explored and synthesized a series of novel coumarin derivatives and assessed their inhibitory effects on cholinesterase (AChE, BuChE), GSK-3β, and BACE1. Among these compounds, compound 30 displayed the multifunctional profile of targeting the AChE (IC50 = 1.313 ± 0.099 μM) with a good selectivity over BuChE (SI = 24.623), GSK-3β (19.30% inhibition at 20 μM), BACE1 (IC50 = 1.227 ± 0.112 μM), along with moderate HepG2 cytotoxicity, SH-SY5Y cytotoxicity, low HL-7702 cytotoxicity, as well as good blood-brain barrier (BBB) permeability. Kinetic and docking studies indicated that compound 30 was a competitive AChE inhibitor. Furthermore, acute toxicity experiments revealed that it was non-toxic at a dosage of 1000 mg/kg. The ADME prediction results indicate that 30 has acceptable physicochemical properties. Collectively, these findings demonstrated that compound 30 would be a potential multifunctional candidate for AD therapy.
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Affiliation(s)
- Wenjie Liu
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Limeng Wu
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Wenwu Liu
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China; School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, People's Republic of China
| | - Liting Tian
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Huanhua Chen
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Zhongchan Wu
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Nan Wang
- Department of Pharmacy, General Hospital of Northern Theater Command, Shenyang, 110840, People's Republic of China
| | - Xin Liu
- School of Life Science and Biochemistry, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Jingsong Qiu
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Xiangling Feng
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Zihua Xu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China; Department of Pharmacy, General Hospital of Northern Theater Command, Shenyang, 110840, People's Republic of China
| | - Xiaowen Jiang
- School of Life Science and Biochemistry, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China; Department of Pharmacy, General Hospital of Northern Theater Command, Shenyang, 110840, People's Republic of China.
| | - Qingchun Zhao
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China; Department of Pharmacy, General Hospital of Northern Theater Command, Shenyang, 110840, People's Republic of China.
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Andhare NH, Equbal D, Sinha AK. Coumarin as a Surrogate for Protection-group-free Synthesis of o-Hydroxy Stilbenes: Hydrolysis-Decarboxylation-Heck Coupling Reactions in One pot. Chem Asian J 2022; 17:e202200619. [PMID: 35957572 DOI: 10.1002/asia.202200619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/26/2022] [Indexed: 11/09/2022]
Abstract
2-Hydroxystyrylbenzene scaffold is found in various compounds that are widely applicable in medicinal chemistry as well as material chemistry. Here, a successful attempt is made to develop a one-pot protocol for the synthesis of 2-hydroxystilbene derivatives via hydrolysis of natural coumarins followed by in situ decarboxylative Heck coupling with haloarenes. Fine tuning of the reaction conditions allowed exclusive formation of 2-hydroxystyrylbenzenes over other possible side products i.e. benzofuran/substituted coumarins.
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Affiliation(s)
- Nitin Hauserao Andhare
- CSIR-Central Drug Research Institute Medicinal and Process Chemistry Division, Medicinal and Process Chemistry Division, INDIA
| | - Danish Equbal
- CSIR-Central Drug Research Institute Medicinal and Process Chemistry Division, Medicinal and Process Chemistry Division, INDIA
| | - Arun Kumar Sinha
- CSIR-CDRI (Central Drug Research Institute), Medicinal and Process Chemistry, Sitapur Road, 226031, Lucknow, INDIA
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43
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The Monkey Head Mushroom and Memory Enhancement in Alzheimer’s Disease. Cells 2022; 11:cells11152284. [PMID: 35892581 PMCID: PMC9331832 DOI: 10.3390/cells11152284] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 07/15/2022] [Accepted: 07/19/2022] [Indexed: 02/07/2023] Open
Abstract
Alzheimer’s disease (AD) is a neurodegenerative disorder, and no effective treatments are available to treat this disorder. Therefore, researchers have been investigating Hericium erinaceus, or the monkey head mushroom, an edible medicinal mushroom, as a possible treatment for AD. In this narrative review, we evaluated six preclinical and three clinical studies of the therapeutic effects of Hericium erinaceus on AD. Preclinical trials have successfully demonstrated that extracts and bioactive compounds of Hericium erinaceus have potential beneficial effects in ameliorating cognitive functioning and behavioral deficits in animal models of AD. A limited number of clinical studies have been conducted and several clinical trials are ongoing, which have thus far shown analogous outcomes to the preclinical studies. Nonetheless, future research on Hericium erinaceus needs to focus on elucidating the specific neuroprotective mechanisms and the target sites in AD. Additionally, standardized treatment parameters and universal regulatory systems need to be established to further ensure treatment safety and efficacy. In conclusion, Hericium erinaceus has therapeutic potential and may facilitate memory enhancement in patients with AD.
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Pandey N, Vinod PK. Model scenarios for cell cycle re-entry in Alzheimer's disease. iScience 2022; 25:104543. [PMID: 35747391 PMCID: PMC9209725 DOI: 10.1016/j.isci.2022.104543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 05/01/2022] [Accepted: 06/02/2022] [Indexed: 11/30/2022] Open
Abstract
Alzheimer's disease (AD) is the most prevalent neurodegenerative disease. Aberrant production and aggregation of amyloid beta (Aβ) peptide into plaques is a frequent feature of AD, but therapeutic approaches targeting Aβ accumulation fail to inhibit disease progression. The approved cholinesterase inhibitor drugs are symptomatic treatments. During human brain development, the progenitor cells differentiate into neurons and switch to a postmitotic state. However, cell cycle re-entry often precedes loss of neurons. We developed mathematical models of multiple routes leading to cell cycle re-entry in neurons that incorporate the crosstalk between cell cycle, neuronal, and apoptotic signaling mechanisms. We show that the integration of multiple feedback loops influences disease severity making the switch to pathological state irreversible. We observe that the transcriptional changes associated with this transition are also characteristics of the AD brain. We propose that targeting multiple arms of the feedback loop may bring about disease-modifying effects in AD. Developed mathematical models of cell cycle re-entry in Alzheimer's disease (AD) Integration of multiple feedback loops drives irreversible transition to AD Predicted transcriptional dysregulation is validated using AD gene expression data Inhibition of self-amplifying feedback loops brings about disease-modifying effects
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Affiliation(s)
- Nishtha Pandey
- Center for Computational Natural Sciences and Bioinformatics, International Institute of Information Technology, Hyderabad 500032 India
| | - P K Vinod
- Center for Computational Natural Sciences and Bioinformatics, International Institute of Information Technology, Hyderabad 500032 India
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On the interface between biomaterials and two-dimensional materials for biomedical applications. Adv Drug Deliv Rev 2022; 186:114314. [PMID: 35568105 DOI: 10.1016/j.addr.2022.114314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 03/30/2022] [Accepted: 04/29/2022] [Indexed: 02/06/2023]
Abstract
Two-dimensional (2D) materials have garnered significant attention due to their ultrathin 2D structures with a high degree of anisotropy and functionality. Reliable manipulation of interfaces between 2D materials and biomaterials is a new frontier for biomedical nanoscience and combining biomaterials with 2D materials offers a promising way to fabricate innovative 2D biomaterials composites with distinct functionality for biomedical applications. Here, we focus exclusively on a summary of the current work in the interface investigation of 2D biomaterials. Specifically, we highlight extraordinary features that make 2D materials so desirable, as well as the molecular level interactions between 2D materials and biomaterials that have been studied thus far. Furthermore, the approaches for investigating the interface characteristics of 2D biomaterials are presented and described in depth. To capture the emerging trend in mass manufacturing of 2D materials, we review the research progress on biomaterial-assisted exfoliation. Finally, we present a critical assessment of newly developed 2D biomaterials in biomedical applications.
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Tak K, Sharma P, Sharma R, Dave V, Jain S, Sharma S. One-pot hydrothermal green synthesis of Polygala tenuifolia mediated graphene quantum dots for acetylcholine esterase inhibitory activity. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Clinical and Preclinical Studies of Fermented Foods and Their Effects on Alzheimer’s Disease. Antioxidants (Basel) 2022; 11:antiox11050883. [PMID: 35624749 PMCID: PMC9137914 DOI: 10.3390/antiox11050883] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 04/25/2022] [Accepted: 04/27/2022] [Indexed: 02/04/2023] Open
Abstract
The focus on managing Alzheimer’s disease (AD) is shifting towards prevention through lifestyle modification instead of treatments since the currently available treatment options are only capable of providing symptomatic relief marginally and result in various side effects. Numerous studies have reported that the intake of fermented foods resulted in the successful management of AD. Food fermentation is a biochemical process where the microorganisms metabolize the constituents of raw food materials, giving vastly different organoleptic properties and additional nutritional value, and improved biosafety effects in the final products. The consumption of fermented foods is associated with a wide array of nutraceutical benefits, including anti-oxidative, anti-inflammatory, neuroprotective, anti-apoptotic, anti-cancer, anti-fungal, anti-bacterial, immunomodulatory, and hypocholesterolemic properties. Due to their promising health benefits, fermented food products have a great prospect for commercialization in the food industry. This paper reviews the memory and cognitive enhancement and neuroprotective potential of fermented food products on AD, the recently commercialized fermented food products in the health and food industries, and their limitations. The literature reviewed here demonstrates a growing demand for fermented food products as alternative therapeutic options for the prevention and management of AD.
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Elghazawy NH, Zaafar D, Hassan RR, Mahmoud MY, Bedda L, Bakr AF, Arafa RK. Discovery of New 1,3,4-Oxadiazoles with Dual Activity Targeting the Cholinergic Pathway as Effective Anti-Alzheimer Agents. ACS Chem Neurosci 2022; 13:1187-1205. [PMID: 35377601 DOI: 10.1021/acschemneuro.1c00766] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Finding an effective anti-Alzheimer agent is quite challenging due to its multifactorial nature. As such, multitarget directed ligands (MTDLs) could be a promising paradigm for finding potential therapeutically effective new small-molecule bioactive agents against Alzheimer's disease (AD). We herein present the design, synthesis, and biological evaluation of a new series of compounds based on a 5-pyrid-3-yl-1,3,4-oxadiazole scaffold. Our synthesized compounds displayed excellent in vitro enzyme inhibitory activity at nanomolar (nM) concentrations against two major AD disease-modifying targets, i.e., acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE). Among our compounds, 5e was considered the best dual inhibitor of both AChE (IC50 = 50.87 nM) and BuChE (IC50 = 4.77 nM), where these values surpassed those of rivastagmine (the only FDA-approved dual AChE and BuChE inhibitor) in our study. Furthermore, in vivo and ex vivo testing of the hit compound 5e highlighted its significant AD-biotargeting effects including reducing the elevated levels of lipid peroxidation and glutathione (GSH), normalizing levels of 8-OHdG, and, most importantly, decreasing the levels of the well-known AD hallmark β-amyloid protein. Finally, the binding ability of 5e to each of our targets, AChE and BuChE, was confirmed through additional molecular docking and molecular dynamics (MD) simulations that reflected good interactions of 5e to the active site of both targets. Hence, we herein present a series of new 1,3,4-oxadiazoles that are promising leads for the development of dual-acting AChE and BuChE inhibitors for the management of AD.
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Affiliation(s)
- Nehal H. Elghazawy
- Drug Design and Discovery Lab, Zewail City of Science and Technology, Ahmed Zewail Road, October Gardens, Cairo 12578, Egypt
| | - Dalia Zaafar
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Modern University for Technology and Information, Cairo 12055, Egypt
| | - Reham R. Hassan
- Drug Design and Discovery Lab, Zewail City of Science and Technology, Ahmed Zewail Road, October Gardens, Cairo 12578, Egypt
| | - Mohamed Y. Mahmoud
- Department of Toxicology, Forensic Medicine and Veterinary Regulations, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
| | - Loay Bedda
- Drug Design and Discovery Lab, Zewail City of Science and Technology, Ahmed Zewail Road, October Gardens, Cairo 12578, Egypt
- Biomedical Sciences Program, University of Science and Technology, Zewail City of Science and Technology, Ahmed Zewail Road, October Gardens, Cairo 12578, Egypt
| | - Alaa F. Bakr
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
| | - Reem K. Arafa
- Drug Design and Discovery Lab, Zewail City of Science and Technology, Ahmed Zewail Road, October Gardens, Cairo 12578, Egypt
- Biomedical Sciences Program, University of Science and Technology, Zewail City of Science and Technology, Ahmed Zewail Road, October Gardens, Cairo 12578, Egypt
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Greenfield SA, Cole GM, Coen CW, Frautschy S, Singh RP, Mekkittikul M, Garcia‐Ratés S, Morrill P, Hollings O, Passmore M, Hasan S, Carty N, Bison S, Piccoli L, Carletti R, Tacconi S, Chalidou A, Pedercini M, Kroecher T, Astner H, Gerrard PA. A novel process driving Alzheimer's disease validated in a mouse model: Therapeutic potential. ALZHEIMER'S & DEMENTIA (NEW YORK, N. Y.) 2022; 8:e12274. [PMID: 35415206 PMCID: PMC8983808 DOI: 10.1002/trc2.12274] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 01/24/2022] [Accepted: 01/25/2022] [Indexed: 12/27/2022]
Abstract
Introduction The neuronal mechanism driving Alzheimer's disease (AD) is incompletely understood. Methods Immunohistochemistry, pharmacology, biochemistry, and behavioral testing are employed in two pathological contexts-AD and a transgenic mouse model-to investigate T14, a 14mer peptide, as a key signaling molecule in the neuropathology. Results T14 increases in AD brains as the disease progresses and is conspicuous in 5XFAD mice, where its immunoreactivity corresponds to that seen in AD: neurons immunoreactive for T14 in proximity to T14-immunoreactive plaques. NBP14 is a cyclized version of T14, which dose-dependently displaces binding of its linear counterpart to alpha-7 nicotinic receptors in AD brains. In 5XFAD mice, intranasal NBP14 for 14 weeks decreases brain amyloid and restores novel object recognition to that in wild-types. Discussion These findings indicate that the T14 system, for which the signaling pathway is described here, contributes to the neuropathological process and that NBP14 warrants consideration for its therapeutic potential.
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Affiliation(s)
| | - Gregory M. Cole
- Department of Neurology & MedicineUSA and Veterans Affairs Healthcare SystemDavid Geffen School of Medicine at UCLALos AngelesUSA
| | - Clive W. Coen
- Faculty of Life Sciences & MedicineKing's College LondonLondonUK
| | - Sally Frautschy
- Department of Neurology & MedicineUSA and Veterans Affairs Healthcare SystemDavid Geffen School of Medicine at UCLALos AngelesUSA
| | - Ram P. Singh
- Department of Neurology & MedicineUSA and Veterans Affairs Healthcare SystemDavid Geffen School of Medicine at UCLALos AngelesUSA
| | - Marisa Mekkittikul
- Department of Neurology & MedicineUSA and Veterans Affairs Healthcare SystemDavid Geffen School of Medicine at UCLALos AngelesUSA
| | | | | | | | | | - Sibah Hasan
- Culham Science CentreNeuro‐Bio LtdAbingdonUK
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Zhou S, Huang G. Synthesis and biological activities of butyrylcholinesterase inhibitors. Chem Biol Drug Des 2021; 99:727-735. [PMID: 34942058 DOI: 10.1111/cbdd.14016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 12/17/2021] [Accepted: 12/21/2021] [Indexed: 11/29/2022]
Abstract
Acetylcholinesterase (AChE) inhibitor is the first choice for the treatment of Alzheimer's disease (AD), but it has some defects, such as dose limitation and unsatisfactory long-term treatment effect. Recent studies have shown that butyrylcholinesterase (BuChE) inhibitors or double acetyl and butyryl cholinesterase inhibitors have better curative effects on AD, and the side effects are lower than those of specific AChE inhibitors. Dual target cholinesterase inhibitors have become a new hotspot in the research of anti-AD drugs. Herein, the synthesis and bioactivities of BuChE inhibitors were reviewed.
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Affiliation(s)
- Shiyang Zhou
- Laboratory of Carbohydrate Science and Engineering, Chongqing Normal University, Chongqing, 401331, China
| | - Gangliang Huang
- Laboratory of Carbohydrate Science and Engineering, Chongqing Normal University, Chongqing, 401331, China
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