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Meng Q, Chao Y, Zhang S, Ding X, Feng H, Zhang C, Liu B, Zhu W, Li Y, Zhang Q, Tong H, Wu L, Bian H. Attenuation of estrogen and its receptors in the post-menopausal stage exacerbates dyslipidemia and leads to cognitive impairment. Mol Brain 2023; 16:80. [PMID: 37986006 PMCID: PMC10662842 DOI: 10.1186/s13041-023-01068-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 11/06/2023] [Indexed: 11/22/2023] Open
Abstract
Cognitive dysfunction increases as menopause progresses. We previously found that estrogen receptors (ERs) contribute to dyslipidemia, but the specific relationship between ERs, dyslipidemia and cognitive dysfunction remains poorly understood. In the present study, we analyzed sequencing data from female hippocampus and normal breast aspirate samples from normal and Alzheimer's disease (AD) women, and the results suggest that abnormal ERs signaling is associated with dyslipidemia and cognitive dysfunction. We replicated a mouse model of dyslipidemia and postmenopausal status in LDLR-/- mice and treated them with β-estradiol or simvastatin, and found that ovariectomy in LDLR-/- mice led to an exacerbation of dyslipidemia and increased hippocampal apoptosis and cognitive impairment, which were associated with reduced estradiol levels and ERα, ERβ and GPER expression. In vitro, a lipid overload model of SH-SY-5Y cells was established and treated with inhibitors of ERs. β-estradiol or simvastatin effectively attenuated dyslipidemia-induced neuronal apoptosis via upregulation of ERs, whereas ERα, ERβ and GPER inhibitors together abolished the protective effect of simvastatin on lipid-induced neuronal apoptosis. We conclude that decreased estrogen and its receptor function in the postmenopausal stage promote neuronal damage and cognitive impairment by exacerbating dyslipidemia, and that estrogen supplementation or lipid lowering is an effective way to ameliorate hippocampal damage and cognitive dysfunction via upregulation of ERs.
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Affiliation(s)
- Qinghai Meng
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Ying Chao
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Shurui Zhang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Xue Ding
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Han Feng
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Chenyan Zhang
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Bowen Liu
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Weijie Zhu
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Yu Li
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Qichun Zhang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Huangjin Tong
- Department of Pharmacy, Jiangsu Province Hospital of Integrated of Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, China
| | - Lixing Wu
- Department of Cardiovascular, Jiangsu Province Hospital of Integrated of Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, China.
| | - Huimin Bian
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
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Barreira CFT, de Oliveira VS, Chávez DWH, Gamallo OD, Castro RN, Júnior PCD, Sawaya ACHF, da Silva Ferreira M, Sampaio GR, Torres EAFDS, Saldanha T. The impacts of pink pepper (Schinus terebinthifolius Raddi) on fatty acids and cholesterol oxides formation in canned sardines during thermal processing. Food Chem 2023; 403:134347. [DOI: 10.1016/j.foodchem.2022.134347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 09/08/2022] [Accepted: 09/17/2022] [Indexed: 12/01/2022]
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Nalika N, Waseem M, Kaushik P, Salman M, Andrabi SS, Parvez S. Role of melatonin and quercetin as countermeasures to the mitochondrial dysfunction induced by titanium dioxide nanoparticles. Life Sci 2023:121403. [PMID: 36669677 DOI: 10.1016/j.lfs.2023.121403] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 11/29/2022] [Accepted: 01/13/2023] [Indexed: 01/19/2023]
Abstract
AIM Due to the growing commercialization of titanium dioxide nanoparticles (TNPs), it is necessary to use these particles in a manner that is safe, healthy and environmental friendly. Through reactive oxygen species (ROS) generation, it has been discovered that TNPs have a harmful effect on the brain. The aim of this study is to provide valuable insights into the possible mechanisms of TNPs induced mitochondrial dysfunction in brain and its amelioration by nutraceuticals, quercetin (QR) and melatonin (Mel) in in vitro and in vivo conditions. MATERIALS AND METHODS Whole brain mitochondrial sample was used for in-vitro evaluation. Pre-treatment of QR (30 μM) and Mel (100 μM) at 25 °C for 1 h was given prior to TNPs (50 μg/ml) exposure. For in-vivo study, male Wistar rats were divided into four groups. Group I was control and group II was exposed to TNPs (5 mg/kg b.wt., i.v.). QR (5 mg/kg b.wt.) and Mel (5 mg/kg b.wt.) were given orally as pre-treatment in groups III and IV, respectively. Biochemical parameters, neurobehavioural paradigms, mitochondrial respiration, neuronal architecture assessment were assessed. KEY FINDINGS QR and Mel restored the mitochondrial oxidative stress biomarkers in both the studies. Additionally, these nutraceuticals resuscitated the neurobehavioural alterations and restored the neuronal architecture alterations in TNPs exposed rats. The mitochondrial dysfunction induced by TNPs was also ameliorated by QR and Mel by protecting the mitochondrial complex activity and mitochondrial respiration rate. SIGNIFICANCE Results of the study demonstrated that QR and Mel ameliorated mitochondrial mediated neurotoxic effects induced by TNPs exposure.
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Affiliation(s)
- Nandini Nalika
- Department of Toxicology, School of Life and Chemical Sciences, Jamia Hamdard, New Delhi 110 062, India
| | - Mohammad Waseem
- Department of Toxicology, School of Life and Chemical Sciences, Jamia Hamdard, New Delhi 110 062, India
| | - Pooja Kaushik
- Department of Toxicology, School of Life and Chemical Sciences, Jamia Hamdard, New Delhi 110 062, India
| | - Mohd Salman
- Department of Toxicology, School of Life and Chemical Sciences, Jamia Hamdard, New Delhi 110 062, India
| | - Syed Suhail Andrabi
- Department of Toxicology, School of Life and Chemical Sciences, Jamia Hamdard, New Delhi 110 062, India
| | - Suhel Parvez
- Department of Toxicology, School of Life and Chemical Sciences, Jamia Hamdard, New Delhi 110 062, India.
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De Araújo FM, Frota AF, de Jesus LB, Macedo TC, Cuenca-Bermejo L, Sanchez-Rodrigo C, Ferreira KMS, de Oliveira JVR, de Fatima Dias Costa M, Segura-Aguilar J, Costa SL, Herrero MT, Silva VDA. Aminochrome Induces Neuroinflammation and Dopaminergic Neuronal Loss: A New Preclinical Model to Find Anti-inflammatory and Neuroprotective Drugs for Parkinson's Disease. Cell Mol Neurobiol 2023; 43:265-81. [PMID: 34988761 DOI: 10.1007/s10571-021-01173-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 11/21/2021] [Indexed: 01/07/2023]
Abstract
Studies have suggested aminochrome as an endogenous neurotoxin responsible for the dopaminergic neuron degeneration in Parkinson's disease (PD). However, neuroinflammation, an important alteration in PD pathogenesis, has been strictly induced in vitro by aminochrome. The aim of this study was to characterize the neuroinflammation induced in vivo by aminochrome. Wistar rats (male, 250-270 g) received a unilateral single dose by stereotaxic injection of saline into three sites in the striatum in the negative control group, or 32 nmol 6-hydroxydopamine (6-OHDA) in the positive control, or 6 nmol aminochrome. After 14 days, histological and molecular analyses were performed. We observed by immunofluorescence that aminochrome, as well as 6-OHDA, induced an increase in the number of Iba-1+ cells and in the number of activated (Iba-1+/ CD68+) microglia. An increase in the number of S100b+ cells and in the GFAP expression were also evidenced in the striatum and the SNpc of animals from aminochrome and positive control group. Dopaminergic neuronal loss was marked by reduction of TH+ cells and confirmed with reduction in the number of Nissl-stained neurons in the SNpc of rats from aminochrome and positive control groups. In addition, we observed by qPCR that aminocrhome induced an increase in the levels of IL-1β, TNF-α, NLRP3, CCL5 and CCR2 mRNA in the SNpc. This work provides the first evidence of microgliosis, astrogliosis and neuroinflammation induced by aminochrome in an in vivo model. Since aminochrome is an endogenous molecule derived from dopamine oxidation present in the targeted neurons in PD, these results reinforce the potential of aminochrome as a useful preclinical model to find anti-inflammatory and neuroprotective drugs for PD. Aminochrome induced dopaminergic neuronal loss, microglial activation, astroglial activation and neuroinflammation marked by an increase in NLRP3, IL1β, TNF-α, CCL2, CCL5 and CCR2.
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Rodrigues-Costa M, Fernandes MSDS, Jurema-Santos GC, Gonçalves LVDP, Andrade-da-Costa BLDS. Nutrigenomics in Parkinson's disease: diversity of modulatory actions of polyphenols on epigenetic effects induced by toxins. Nutr Neurosci 2023; 26:72-84. [PMID: 36625764 DOI: 10.1080/1028415x.2021.2017662] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Although the pathogenesis of Parkinson's Disease (PD) is not completely understood, there is a consensus that it can be caused by multifactorial mechanisms involving genetic susceptibility, epigenetic modifications induced by toxins and mitochondrial dysfunction. In the past 20 years, great efforts have been made in order to clarify molecular mechanisms that are risk factors for this disease, as well as to identify bioactive agents for prevention and slowing down of its progression. Nutraceutical products have received substantial interest due to their nutritional, safe and therapeutic effects on several chronic diseases. The aim of this review was to gather the main evidence of the epigenetic mechanisms involved in the neuroprotective effects of phenolic compounds currently under investigation for the treatment of toxin-induced PD. These studies confirm that the neuroprotective actions of polyphenols involve complex epigenetic modulations, demonstrating that the intake of these natural compounds can be a promising, low-cost, pharmacogenomic strategy against the development of PD.
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Affiliation(s)
- Moara Rodrigues-Costa
- Programa de Neuropsiquiatria e Ciências do Comportamento, Universidade Federal de Pernambuco, Recife, Brazil.,Departamento de Fisiologia e Farmacologia, Universidade Federal de Pernambuco, Recife, Brazil
| | - Matheus Santos de Sousa Fernandes
- Programa de Neuropsiquiatria e Ciências do Comportamento, Universidade Federal de Pernambuco, Recife, Brazil.,Departamento de Educação Física, Universidade Federal de Pernambuco, Recife, Brazil
| | | | | | - Belmira Lara da Silveira Andrade-da-Costa
- Programa de Neuropsiquiatria e Ciências do Comportamento, Universidade Federal de Pernambuco, Recife, Brazil.,Departamento de Fisiologia e Farmacologia, Universidade Federal de Pernambuco, Recife, Brazil
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Santos CC, Cardim-Pires TR, Shvachiy L, Fonseca-Fonseca LA, Muñoz P, Almeida ÁMAN, Costa ACS, Teles-Souza J, Ochoa-Rodríguez E, de Fátima Dias Costa M, Palhano FL, Segura-Aguilar J, Barbosa DB, do Bomfim MR, Dos Santos Junior MC, Leite FHA, da Rocha Pita SS, Costa SL, Núñez-Figueredo Y, Outeiro TF, Foguel D, Silva VDA. JM-20, a Benzodiazepine-Dihydropyridine Hybrid Molecule, Inhibits the Formation of Alpha-Synuclein-Aggregated Species. Neurotox Res 2022; 40:2135-47. [PMID: 35997936 DOI: 10.1007/s12640-022-00559-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 07/20/2022] [Accepted: 08/11/2022] [Indexed: 12/31/2022]
Abstract
Studies showed that JM-20, a benzodiazepine-dihydropyridine hybrid molecule, protects against rotenone and 6-hydroxydopamine neurotoxicity. However, its protective effects against cytotoxicity induced by endogenous neurotoxins involved in Parkinson's disease (PD) pathogenesis have never been investigated. In this study, we evaluated the ability of JM-20 to inhibit alpha-synuclein (aSyn) aggregation. We also evaluated the interactions of JM-20 with aSyn by molecular docking and molecular dynamics and assessed the protective effect of JM-20 against aminochrome cytotoxicity. We demonstrated that JM-20 induced the formation of heterogeneous amyloid fibrils, which were innocuous to primary cultures of mesencephalic cells. Moreover, JM-20 reduced the average size of aSyn positive inclusions in H4 cells transfected with SynT wild-type and synphilin-1-V5, but not in HEK cells transfected with synphilin-1-GFP. In silico studies showed the interaction between JM-20 and the aSyn-binding site. Additionally, we showed that JM-20 protects SH-SY5Y cells against aminochrome cytotoxicity. These results reinforce the potential of JM-20 as a neuroprotective compound for PD and suggest aSyn as a molecular target for JM-20.
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da Rosa MM, de Amorim LC, Alves JVDO, Aguiar IFDS, Oliveira FGDS, da Silva MV, dos Santos MTC. The promising role of natural products in Alzheimer's disease. Brain Disorders 2022. [DOI: 10.1016/j.dscb.2022.100049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022] Open
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Affiliation(s)
- Victor Silva
- Laboratory of Neurochemistry and Cell Biology, Department of Biochemistry and Biophysics, Institute of Health Sciences, Federal University of Bahia, 40110-100, Salvador, Bahia, Brazil
| | - Juan Segura-Aguilar
- Molecular and Clinical Pharmacology, ICBM, Faculty of Medicine, University of Chile, Chile
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