1
|
Zhang M, Liang C, Chen X, Cai Y, Cui L. Interplay between microglia and environmental risk factors in Alzheimer's disease. Neural Regen Res 2024; 19:1718-1727. [PMID: 38103237 PMCID: PMC10960290 DOI: 10.4103/1673-5374.389745] [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: 06/14/2023] [Revised: 09/09/2023] [Accepted: 10/24/2023] [Indexed: 12/18/2023] Open
Abstract
Alzheimer's disease, among the most common neurodegenerative disorders, is characterized by progressive cognitive impairment. At present, the Alzheimer's disease main risk remains genetic risks, but major environmental factors are increasingly shown to impact Alzheimer's disease development and progression. Microglia, the most important brain immune cells, play a central role in Alzheimer's disease pathogenesis and are considered environmental and lifestyle "sensors." Factors like environmental pollution and modern lifestyles (e.g., chronic stress, poor dietary habits, sleep, and circadian rhythm disorders) can cause neuroinflammatory responses that lead to cognitive impairment via microglial functioning and phenotypic regulation. However, the specific mechanisms underlying interactions among these factors and microglia in Alzheimer's disease are unclear. Herein, we: discuss the biological effects of air pollution, chronic stress, gut microbiota, sleep patterns, physical exercise, cigarette smoking, and caffeine consumption on microglia; consider how unhealthy lifestyle factors influence individual susceptibility to Alzheimer's disease; and present the neuroprotective effects of a healthy lifestyle. Toward intervening and controlling these environmental risk factors at an early Alzheimer's disease stage, understanding the role of microglia in Alzheimer's disease development, and targeting strategies to target microglia, could be essential to future Alzheimer's disease treatments.
Collapse
Affiliation(s)
- Miaoping Zhang
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, China
| | - Chunmei Liang
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, China
| | - Xiongjin Chen
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, China
| | - Yujie Cai
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, China
| | - Lili Cui
- Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong Province, China
| |
Collapse
|
2
|
Ji Y, Morel Y, Tran AQ, Lipinski MM, Sarkar C, Jones JW. Development and evaluation of a liquid chromatography-tandem mass spectrometry method for simultaneous measurement of toxic aldehydes from brain tissue. J Chromatogr B Analyt Technol Biomed Life Sci 2024; 1242:124208. [PMID: 38880056 PMCID: PMC11227393 DOI: 10.1016/j.jchromb.2024.124208] [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] [Received: 04/09/2024] [Revised: 05/24/2024] [Accepted: 06/11/2024] [Indexed: 06/18/2024]
Abstract
Reactive aldehydes are a class of electrophilic low molecular weight compounds that play an essential role in physiological function and lipid peroxidation. These molecules are implicated in many diseases, especially cardiovascular and neurodegenerative diseases, and are potential endogenous markers of lipid peroxidation. However, there are limited options to accurately quantify multiple reactive aldehydes in brain tissue. This study developed and validated a 3-nitrophenylhydrazine derivatization-based LC-MS/MS method to quantify four reactive aldehydes: malondialdehyde, acrolein, 4-hydroxy-2-hexenal and 4-hydroxy-2-nonenal. Method development involved comparing the sensitivity of detection between widely used derivatization reagents: 2,4-dinitrophenylhydrazine and 3-nitrophenylhydrazine. Our data showed that 3-nitrophenylhydrazine resulted in greater sensitivity. Additional method development included evaluation of hydrolysis sample pretreatment, selection of protein precipitation reagent, and optimization of derivatization conditions. The optimized conditions included no hydrolysis and use of 20 % trichloroacetic acid as the protein precipitation reagent. The optimized derivatization condition was 25 mM 3-nitrophenylhydrazine reacted at 20 °C for 30 min. The chromatographic conditions were optimized to reduce matrix effects, ion suppression, and efficient analysis time (<7-minute analytical run). The four aldehyde species were accurately quantified in brain tissue using stable-labeled internal standards. Application of this assay to a traumatic brain injury mouse model revealed significant accumulation of acrolein, 4-hydroxy-2-hexenal, and 4-hydroxy-2-nonenal at 28 days post injury. Overall, a validated method was developed to rapidly quantify the most prominent reactive aldehydes associated with lipid peroxidation during injury progression following acute brain trauma.
Collapse
Affiliation(s)
- Yuanyuan Ji
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD 21201, USA
| | - Yulemni Morel
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD 21201, USA
| | - Anh Q Tran
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD 21201, USA
| | - Marta M Lipinski
- Department of Anesthesiology, Shock, Trauma and Anesthesiology Research (STAR) Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Chinmoy Sarkar
- Department of Anesthesiology, Shock, Trauma and Anesthesiology Research (STAR) Center, University of Maryland School of Medicine, Baltimore, MD 21201, USA
| | - Jace W Jones
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD 21201, USA.
| |
Collapse
|
3
|
Campolim CM, Schimenes BC, Veras MM, Kim YB, Prada PO. Air pollution accelerates the development of obesity and Alzheimer's disease: the role of leptin and inflammation - a mini-review. Front Immunol 2024; 15:1401800. [PMID: 38933275 PMCID: PMC11199417 DOI: 10.3389/fimmu.2024.1401800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Accepted: 05/29/2024] [Indexed: 06/28/2024] Open
Abstract
Air pollution is an urgent concern linked to numerous health problems in low- and middle-income countries, where 92% of air pollution-related deaths occur. Particulate matter 2.5 (PM2.5) is the most harmful component of air pollutants, increasing inflammation and changing gut microbiota, favoring obesity, type 2 diabetes, and Alzheimer's Disease (AD). PM2.5 contains lipopolysaccharides (LPS), which can activate the Toll-like receptor 4 (TLR4) signaling pathway. This pathway can lead to the release of pro-inflammatory markers, including interleukins, and suppressor of cytokine signaling-3 (SOCS3), which inhibits leptin action, a hormone that keeps the energy homeostasis. Leptin plays a role in preventing amyloid plaque deposition and hyperphosphorylation of tau-protein (p-tau), mechanisms involved in the neurodegeneration in AD. Approximately 50 million people worldwide are affected by dementia, with a significant proportion living in low-and middle-income countries. This number is expected to triple by 2050. This mini-review focuses on the potential impact of PM2.5 exposure on the TLR4 signaling pathway, its contribution to leptin resistance, and dysbiosis that exacerbates the link between obesity and AD.
Collapse
Affiliation(s)
- Clara Machado Campolim
- Department of Internal Medicine, School of Medical Science, State University of Campinas (UNICAMP), Campinas, SP, Brazil
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Beth Israel Deaconess Medical Center, and Harvard Medical School, Boston, MA, United States
| | | | - Mariana Matera Veras
- Laboratory of Environmental and Experimental Pathology LIM05, Department of Pathology, School of Medicine, University of São Paulo (USP), São Paulo, SP, Brazil
| | - Young-Bum Kim
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Beth Israel Deaconess Medical Center, and Harvard Medical School, Boston, MA, United States
| | - Patricia Oliveira Prada
- Department of Internal Medicine, School of Medical Science, State University of Campinas (UNICAMP), Campinas, SP, Brazil
- Obesity and Comorbidities Research Center, Campinas, SP, Brazil
- Department of Structural and Functional Biology, Institute of Biology (IB), University of Campinas, Campinas, SP, Brazil
| |
Collapse
|
4
|
Kim BK, Kim C, Cho J. Association between exposure to heavy metals in atmospheric particulate matter and sleep quality: A nationwide data linkage study. ENVIRONMENTAL RESEARCH 2024; 247:118217. [PMID: 38244965 DOI: 10.1016/j.envres.2024.118217] [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: 08/20/2023] [Revised: 12/18/2023] [Accepted: 01/14/2024] [Indexed: 01/22/2024]
Abstract
BACKGROUND Recent studies have demonstrated that long-term exposure to particulate matter (PM) is associated with poor sleep quality. However, no studies have linked PM constituents, particularly heavy metals, to sleep quality. OBJECTIVE This study investigated the association between exposure to heavy metals in PM and sleep quality. METHODS We obtained nationwide data from the Korean Community Health Survey conducted in 2018 among adults aged 19-80 years. Sleep quality was evaluated using Pittsburgh Sleep Quality Index (PSQI). Poor sleep quality was defined as PSQI ≥5. One-year and three-month average concentrations of heavy metals (lead, manganese, cadmium, and aluminum) in PM with diameter ≤10 μm were obtained from nationwide air quality monitoring data and linked to the survey data based on individual district-level residential addresses. Logistic regression analyses were performed after adjusting for age, gender, education level, marital status, smoking status, alcohol consumption, history of hypertension, and history of diabetes mellitus. RESULTS Of 32,050 participants, 17,082 (53.3%) reported poor sleep quality. Increases in log-transformed one-year average lead (odds ratio, 1.14; 95% confidence interval, 1.08-1.20), manganese (1.31; 1.25-1.37), cadmium (1.03; 1.00-1.05), and aluminum concentrations (1.17; 1.10-1.25) were associated with poor sleep quality. Increases in log-transformed three-month average manganese (odds ratio, 1.13; 95% confidence interval, 1.09-1.17) and aluminum concentrations (1.28; 1.21-1.35) were associated with poor sleep quality. CONCLUSION We showed for the first time that exposure to airborne lead, manganese, cadmium, and aluminum were associated with poor sleep quality. This study may be limited by self-reported sleep quality and district-level exposure data.
Collapse
Affiliation(s)
- Byung Kwon Kim
- Department of Public Health, Yonsei University College of Medicine, Yonsei-ro 50-1, Seodaemun-gu, Seoul, 03722, Republic of Korea.
| | - Changsoo Kim
- Department of Preventive Medicine, Yonsei University College of Medicine, Yonsei-ro 50-1, Seodaemun-gu, Seoul, 03722, Republic of Korea; Institute for Environmental Research, Yonsei University College of Medicine, Yonsei-ro 50-1, Seodaemun-gu, Seoul, 03722, Republic of Korea; Institute of Human Complexity and Systems Science, Gwahak-ro 85, Yeonsu-gu, Incheon, 21983, Republic of Korea.
| | - Jaelim Cho
- Department of Preventive Medicine, Yonsei University College of Medicine, Yonsei-ro 50-1, Seodaemun-gu, Seoul, 03722, Republic of Korea; Institute for Environmental Research, Yonsei University College of Medicine, Yonsei-ro 50-1, Seodaemun-gu, Seoul, 03722, Republic of Korea; Institute of Human Complexity and Systems Science, Gwahak-ro 85, Yeonsu-gu, Incheon, 21983, Republic of Korea.
| |
Collapse
|
5
|
Jaisa-aad M, Muñoz-Castro C, Serrano-Pozo A. Update on modifiable risk factors for Alzheimer's disease and related dementias. Curr Opin Neurol 2024; 37:166-181. [PMID: 38265228 PMCID: PMC10932854 DOI: 10.1097/wco.0000000000001243] [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: 01/25/2024]
Abstract
PURPOSE OF REVIEW All human beings undergo a lifelong cumulative exposure to potentially preventable adverse factors such as toxins, infections, traumatisms, and cardiovascular risk factors, collectively termed exposome. The interplay between the individual's genetics and exposome is thought to have a large impact in health outcomes such as cancer and cardiovascular disease. Likewise, a growing body of evidence is supporting the idea that preventable factors explain a sizable proportion of Alzheimer's disease and related dementia (ADRD) cases. RECENT FINDINGS Here, we will review the most recent epidemiological, experimental preclinical, and interventional clinical studies examining some of these potentially modifiable risk factors for ADRD. We will focus on new evidence regarding cardiovascular risk factors, air pollution, viral and other infectious agents, traumatic brain injury, and hearing loss. SUMMARY While greater and higher quality epidemiological and experimental evidence is needed to unequivocally confirm their causal link with ADRD and/or unravel the underlying mechanisms, these modifiable risk factors may represent a window of opportunity to reduce ADRD incidence and prevalence at the population level via health screenings, and education and health policies.
Collapse
Affiliation(s)
- Methasit Jaisa-aad
- Massachusetts General Hospital, Boston, MA 02114
- Harvard Medical School, Boston, MA 02115
| | - Clara Muñoz-Castro
- Massachusetts General Hospital, Boston, MA 02114
- Harvard Medical School, Boston, MA 02115
- Universidad de Sevilla, Sevilla (Spain)
| | - Alberto Serrano-Pozo
- Massachusetts General Hospital, Boston, MA 02114
- Harvard Medical School, Boston, MA 02115
- Massachusetts Alzheimer’s Disease Research Center
| |
Collapse
|
6
|
Prajapat M, Kaur G, Choudhary G, Pahwa P, Bansal S, Joshi R, Batra G, Mishra A, Singla R, Kaur H, Prabha PK, Patel AP, Medhi B. A systematic review for the development of Alzheimer's disease in in vitro models: a focus on different inducing agents. Front Aging Neurosci 2023; 15:1296919. [PMID: 38173557 PMCID: PMC10761490 DOI: 10.3389/fnagi.2023.1296919] [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: 09/19/2023] [Accepted: 11/30/2023] [Indexed: 01/05/2024] Open
Abstract
Alzheimer's disease (AD) is the most common progressive neurodegenerative disease and is associated with dementia. Presently, various chemical and environmental agents are used to induce in-vitro models of Alzheimer disease to investigate the efficacy of different therapeutic drugs. We screened literature from databases such as PubMed, ScienceDirect, and Google scholar, emphasizing the diverse targeting mechanisms of neuro degeneration explored in in-vitro models. The results revealed studies in which different types of chemicals and environmental agents were used for in-vitro development of Alzheimer-targeting mechanisms of neurodegeneration. Studies using chemically induced in-vitro AD models included in this systematic review will contribute to a deeper understanding of AD. However, none of these models can reproduce all the characteristics of disease progression seen in the majority of Alzheimer's disease subtypes. Additional modifications would be required to replicate the complex conditions of human AD in an exact manner. In-vitro models of Alzheimer's disease developed using chemicals and environmental agents are instrumental in providing insights into the disease's pathophysiology; therefore, chemical-induced in-vitro AD models will continue to play vital role in future AD research. This systematic screening revealed the pivotal role of chemical-induced in-vitro AD models in advancing our understanding of AD pathophysiology and is therefore important to understand the potential of these chemicals in AD pathogenesis.
Collapse
Affiliation(s)
| | - Gurjeet Kaur
- Department of Pharmacology, PGIMER, Chandigarh, India
| | | | - Paras Pahwa
- Department of Pharmacology, PGIMER, Chandigarh, India
| | - Seema Bansal
- MM College of Pharmacy, Maharishi Markandeshwar (DU) University, Mullana, Ambala, India
| | - Rupa Joshi
- Department of Pharmacology, PGIMER, Chandigarh, India
| | - Gitika Batra
- Department of Neurology, PGIMER, Chandigarh, India
| | - Abhishek Mishra
- Department of Biomedical Sciences, University of Minnesota, Minneapolis, MN, United States
| | - Rubal Singla
- Department of Pharmacology, PGIMER, Chandigarh, India
| | | | | | | | - Bikash Medhi
- Department of Pharmacology, PGIMER, Chandigarh, India
| |
Collapse
|
7
|
Petkus AJ, Salminen LE, Wang X, Driscoll I, Millstein J, Beavers DP, Espeland MA, Braskie MN, Thompson PM, Casanova R, Gatz M, Chui HC, Resnick SM, Kaufman JD, Rapp SR, Shumaker S, Younan D, Chen JC. Alzheimer's Related Neurodegeneration Mediates Air Pollution Effects on Medial Temporal Lobe Atrophy. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.11.29.23299144. [PMID: 38076972 PMCID: PMC10705654 DOI: 10.1101/2023.11.29.23299144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Exposure to ambient air pollution, especially particulate matter with aerodynamic diameter <2.5 μm (PM2.5) and nitrogen dioxide (NO2), are environmental risk factors for Alzheimer's disease and related dementia. The medial temporal lobe (MTL) is an important brain region subserving episodic memory that atrophies with age, during the Alzheimer's disease continuum, and is vulnerable to the effects of cerebrovascular disease. Despite the importance of air pollution it is unclear whether exposure leads to atrophy of the MTL and by what pathways. Here we conducted a longitudinal study examining associations between ambient air pollution exposure and MTL atrophy and whether putative air pollution exposure effects resembled Alzheimer's disease-related neurodegeneration or cerebrovascular disease-related neurodegeneration. Participants included older women (n = 627; aged 71-87) who underwent two structural brain MRI scans (MRI-1: 2005-6; MRI-2: 2009-10) as part of the Women's Health Initiative Memory Study of Magnetic Resonance Imaging. Regionalized universal kriging was used to estimate annual concentrations of PM2.5 and NO2 at residential locations aggregated to 3-year averages prior to MRI-1. The outcome was 5-year standardized change in MTL volumes. Mediators included voxel-based MRI measures of the spatial pattern of neurodegeneration of Alzheimer's disease (Alzheimer's disease pattern similarity scores [AD-PS]) and whole-brain white matter small-vessel ischemic disease (WM-SVID) volume as a proxy of global cerebrovascular damage. Structural equation models were constructed to examine whether the associations between exposures with MTL atrophy were mediated by the initial level or concurrent change in AD-PS score or WM-SVID while adjusting for sociodemographic, lifestyle, clinical characteristics, and intracranial volume. Living in locations with higher PM2.5 (per interquartile range [IQR]=3.17μg/m3) or NO2 (per IQR=6.63ppb) was associated with greater MTL atrophy (βPM2.5 = -0.29, 95% confidence interval [CI]=[-0.41,-0.18]; βNO2 =-0.12, 95%CI=[-0.23,-0.02]). Greater PM2.5 was associated with larger increases in AD-PS (βPM2.5 = 0.23, 95%CI=[0.12,0.33]) over time, which partially mediated associations with MTL atrophy (indirect effect= -0.10; 95%CI=[-0.15, -0.05]), explaining approximately 32% of the total effect. NO2 was positively associated with AD-PS at MRI-1 (βNO2=0.13, 95%CI=[0.03,0.24]), which partially mediated the association with MTL atrophy (indirect effect= -0.01, 95% CI=[-0.03,-0.001]). Global WM-SVID at MRI-1 or concurrent change were not significant mediators between exposures and MTL atrophy. Findings support the mediating role of Alzheimer's disease-related neurodegeneration contributing to MTL atrophy associated with late-life exposures to air pollutants. Alzheimer's disease-related neurodegeneration only partially explained associations between exposure and MTL atrophy suggesting the role of multiple neuropathological processes underlying air pollution neurotoxicity on brain aging.
Collapse
Affiliation(s)
- Andrew J. Petkus
- Department of Neurology, University of Southern California, Los Angeles, California, 90033, United States
| | - Lauren E. Salminen
- Department of Neurology, University of Southern California, Los Angeles, California, 90033, United States
- Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Los Angeles, California, 90033, United States
| | - Xinhui Wang
- Department of Neurology, University of Southern California, Los Angeles, California, 90033, United States
| | - Ira Driscoll
- School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin, 53792, United States
| | - Joshua Millstein
- Department of Population and Public Health Sciences, University of Southern California, Los Angeles, California, 90033, United States
| | - Daniel P. Beavers
- Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27101, United States
| | - Mark A. Espeland
- Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27101, United States
| | - Meredith N. Braskie
- Department of Neurology, University of Southern California, Los Angeles, California, 90033, United States
- Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Los Angeles, California, 90033, United States
| | - Paul M. Thompson
- Department of Neurology, University of Southern California, Los Angeles, California, 90033, United States
- Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Los Angeles, California, 90033, United States
| | - Ramon Casanova
- Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27101, United States
| | - Margaret Gatz
- Center for Economic and Social Research, University of Southern California, Los Angeles, California, 90089, United States
| | - Helena C. Chui
- Department of Neurology, University of Southern California, Los Angeles, California, 90033, United States
| | - Susan M Resnick
- The Laboratory of Behavioral Neuroscience, National Institute on Aging, Baltimore, Maryland, 20898, United States
| | - Joel D. Kaufman
- Departments of Environmental & Occupational Health Sciences, Medicine (General Internal Medicine), and Epidemiology, University of Washington, Seattle, Washington, 98195, United States
| | - Stephen R. Rapp
- Departments of Psychiatry and Behavioral Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina , 27101, United States
- Department of Social Sciences and Health Policy, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27101, United States
| | - Sally Shumaker
- Department of Social Sciences and Health Policy, Wake Forest School of Medicine, Winston-Salem, North Carolina, 27101, United States
| | - Diana Younan
- Department of Population and Public Health Sciences, University of Southern California, Los Angeles, California, 90033, United States
| | - Jiu-Chiuan Chen
- Department of Neurology, University of Southern California, Los Angeles, California, 90033, United States
- Department of Population and Public Health Sciences, University of Southern California, Los Angeles, California, 90033, United States
| |
Collapse
|
8
|
Kim SH, Das D, Sillé FCM, Ramachandran G, Biswal S. Subchronic exposure to ambient PM 2.5 impairs novelty recognition and spatial memory. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.07.556582. [PMID: 37745318 PMCID: PMC10515782 DOI: 10.1101/2023.09.07.556582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
Air pollution remains a great challenge for public health, with the detrimental effects of air pollution on cardiovascular, rhinosinusitis, and pulmonary health increasingly well understood. Recent epidemiological associations point to the adverse effects of air pollution on cognitive decline and neurodegenerative diseases. Mouse models of subchronic exposure to PM 2.5 (ambient air particulate matter < 2.5 µm) provide an opportunity to demonstrate the causality of target diseases. Here, we subchronically exposed mice to concentrated ambient PM 2.5 for 7 weeks (5 days/week; 8h/day) and assessed its effect on behavior using standard tests measuring cognition or anxiety-like behaviors. Average daily PM 2.5 concentration was 200 µg/m 3 in the PM 2.5 group and 10 µg/m 3 in the filtered air group. The novel object recognition (NOR) test was used to assess the effect of PM 2.5 exposure on recognition memory. The increase in exploration time for a novel object versus a familiarized object was lower for PM 2.5 -exposed mice (42% increase) compared to the filtered air (FA) control group (110% increase). In addition, the calculated discrimination index for novel object recognition was significantly higher in FA mice (67 %) compared to PM 2.5 exposed mice (57.3%). The object location test (OLT) was used to examine the effect of PM 2.5 exposure on spatial memory. In contrast to the FA-exposed control mice, the PM 2.5 exposed mice exhibited no significant increase in their exploration time between novel location versus familiarized location indicating their deficit in spatial memory. Furthermore, the discrimination index for novel location was significantly higher in FA mice (62.6%) compared to PM 2.5 exposed mice (51%). Overall, our results demonstrate that subchronic exposure to higher levels of PM 2.5 in mice causes impairment of novelty recognition and spatial memory.
Collapse
|
9
|
Kilian JG, Mejias-Ortega M, Hsu HW, Herman DA, Vidal J, Arechavala RJ, Renusch S, Dalal H, Hasen I, Ting A, Rodriguez-Ortiz CJ, Lim SL, Lin X, Vu J, Saito T, Saido TC, Kleinman MT, Kitazawa M. Exposure to quasi-ultrafine particulate matter accelerates memory impairment and Alzheimer's disease-like neuropathology in the AppNL-G-F knock-in mouse model. Toxicol Sci 2023; 193:175-191. [PMID: 37074955 PMCID: PMC10230292 DOI: 10.1093/toxsci/kfad036] [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: 04/20/2023] Open
Abstract
Exposure to traffic-related air pollution consisting of particulate matter (PM) is associated with cognitive decline leading to Alzheimer's disease (AD). In this study, we sought to examine the neurotoxic effects of exposure to ultrafine PM and how it exacerbates neuronal loss and AD-like neuropathology in wildtype (WT) mice and a knock-in mouse model of AD (AppNL-G-F/+-KI) when the exposure occurs at a prepathologic stage or at a later age with the presence of neuropathology. AppNL-G-F/+-KI and WT mice were exposed to concentrated ultrafine PM from local ambient air in Irvine, California, for 12 weeks, starting at 3 or 9 months of age. Particulate matter-exposed animals received concentrated ultrafine PM up to 8 times above the ambient levels, whereas control animals were exposed to purified air. Particulate matter exposure resulted in a marked impairment of memory tasks in prepathologic AppNL-G-F/+-KI mice without measurable changes in amyloid-β pathology, synaptic degeneration, and neuroinflammation. At aged, both WT and AppNL-G-F/+-KI mice exposed to PM showed a significant memory impairment along with neuronal loss. In AppNL-G-F/+-KI mice, we also detected an increased amyloid-β buildup and potentially harmful glial activation including ferritin-positive microglia and C3-positive astrocytes. Such glial activation could promote the cascade of degenerative consequences in the brain. Our results suggest that exposure to PM impairs cognitive function at both ages while exacerbation of AD-related pathology and neuronal loss may depend on the stage of pathology, aging, and/or state of glial activation. Further studies will be required to unveil the neurotoxic role of glial activation activated by PM exposure.
Collapse
Affiliation(s)
- Jason G Kilian
- Department of Environmental and Occupational Health, Center for Occupational and Environmental Health (COEH), University of California, Irvine, California 92697-1830, USA
- Institute for Memory Impairmants and Neurological Disorders (UCI MIND), University of California, Irvine, California 92697, USA
| | - Marina Mejias-Ortega
- Department of Environmental and Occupational Health, Center for Occupational and Environmental Health (COEH), University of California, Irvine, California 92697-1830, USA
- Department of Cell Biology, Genetics and Physiology, Facultad de Ciencias, Instituto de Investigacion Biomedica de Malaga-IBIMA, Universidad de Malaga, Malaga, Spain
- Centro de Investigación Biomedica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
| | - Heng-Wei Hsu
- Department of Environmental and Occupational Health, Center for Occupational and Environmental Health (COEH), University of California, Irvine, California 92697-1830, USA
- Institute for Memory Impairmants and Neurological Disorders (UCI MIND), University of California, Irvine, California 92697, USA
| | - David A Herman
- Department of Environmental and Occupational Health, Center for Occupational and Environmental Health (COEH), University of California, Irvine, California 92697-1830, USA
| | - Janielle Vidal
- Department of Environmental and Occupational Health, Center for Occupational and Environmental Health (COEH), University of California, Irvine, California 92697-1830, USA
- Institute for Memory Impairmants and Neurological Disorders (UCI MIND), University of California, Irvine, California 92697, USA
| | - Rebecca J Arechavala
- Department of Environmental and Occupational Health, Center for Occupational and Environmental Health (COEH), University of California, Irvine, California 92697-1830, USA
| | - Samantha Renusch
- Department of Environmental and Occupational Health, Center for Occupational and Environmental Health (COEH), University of California, Irvine, California 92697-1830, USA
| | - Hansal Dalal
- Department of Environmental and Occupational Health, Center for Occupational and Environmental Health (COEH), University of California, Irvine, California 92697-1830, USA
| | - Irene Hasen
- Department of Environmental and Occupational Health, Center for Occupational and Environmental Health (COEH), University of California, Irvine, California 92697-1830, USA
| | - Amanda Ting
- Department of Environmental and Occupational Health, Center for Occupational and Environmental Health (COEH), University of California, Irvine, California 92697-1830, USA
| | - Carlos J Rodriguez-Ortiz
- Department of Environmental and Occupational Health, Center for Occupational and Environmental Health (COEH), University of California, Irvine, California 92697-1830, USA
- Institute for Memory Impairmants and Neurological Disorders (UCI MIND), University of California, Irvine, California 92697, USA
| | - Siok-Lam Lim
- Department of Environmental and Occupational Health, Center for Occupational and Environmental Health (COEH), University of California, Irvine, California 92697-1830, USA
- Institute for Memory Impairmants and Neurological Disorders (UCI MIND), University of California, Irvine, California 92697, USA
| | - Xiaomeng Lin
- Department of Environmental and Occupational Health, Center for Occupational and Environmental Health (COEH), University of California, Irvine, California 92697-1830, USA
| | - Joan Vu
- Department of Environmental and Occupational Health, Center for Occupational and Environmental Health (COEH), University of California, Irvine, California 92697-1830, USA
- Institute for Memory Impairmants and Neurological Disorders (UCI MIND), University of California, Irvine, California 92697, USA
| | - Takashi Saito
- Department of Neurocognitive Science, Institute of Brain Science, Nagoya City University, Nagoya, Japan
| | - Takaomi C Saido
- Laboratory for Proteolytic Neuroscience, RIKEN Center for Brain Science, Wako, Japan
| | - Michael T Kleinman
- Department of Environmental and Occupational Health, Center for Occupational and Environmental Health (COEH), University of California, Irvine, California 92697-1830, USA
| | - Masashi Kitazawa
- Department of Environmental and Occupational Health, Center for Occupational and Environmental Health (COEH), University of California, Irvine, California 92697-1830, USA
- Institute for Memory Impairmants and Neurological Disorders (UCI MIND), University of California, Irvine, California 92697, USA
| |
Collapse
|
10
|
Serafin P, Zaremba M, Sulejczak D, Kleczkowska P. Air Pollution: A Silent Key Driver of Dementia. Biomedicines 2023; 11:biomedicines11051477. [PMID: 37239148 DOI: 10.3390/biomedicines11051477] [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: 04/27/2023] [Revised: 05/13/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
In 2017, the Lancet Commission on Dementia Prevention, Intervention, and Care included air pollution in its list of potential risk factors for dementia; in 2018, the Lancet Commission on Pollution concluded that the evidence for a causal relationship between fine particulate matter (PM) and dementia is encouraging. However, few interventions exist to delay or prevent the onset of dementia. Air quality data are becoming increasingly available, and the science underlying the associated health effects is also evolving rapidly. Recent interest in this area has led to the publication of population-based cohort studies, but these studies have used different approaches to identify cases of dementia. The purpose of this article is to review recent evidence describing the association between exposure to air pollution and dementia with special emphasis on fine particulate matter of 2.5 microns or less. We also summarize here the proposed detailed mechanisms by which air pollutants reach the brain and activate the innate immune response. In addition, the article also provides a short overview of existing limitations in the treatment of dementia.
Collapse
Affiliation(s)
- Pawel Serafin
- Military Institute of Hygiene and Epidemiology, 01-163 Warsaw, Poland
| | - Malgorzata Zaremba
- Military Institute of Hygiene and Epidemiology, 01-163 Warsaw, Poland
- Department of Experimental and Clinical Pharmacology, Centre for Preclinical Research (CBP), Medical University of Warsaw, 02-097 Warsaw, Poland
| | - Dorota Sulejczak
- Department of Experimental Pharmacology, Mossakowski Medical Research Institute, Polish Academy of Sciences, 5 Pawinskiego Str., 02-106 Warsaw, Poland
| | - Patrycja Kleczkowska
- Military Institute of Hygiene and Epidemiology, 01-163 Warsaw, Poland
- Maria Sklodowska-Curie, Medical Academy in Warsaw, Solidarnosci 12 Str., 03-411 Warsaw, Poland
| |
Collapse
|
11
|
Kang YJ, Xue Y, Shin JH, Cho H. Human mini-brains for reconstituting central nervous system disorders. LAB ON A CHIP 2023; 23:964-981. [PMID: 36644973 DOI: 10.1039/d2lc00897a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Neurological disorders in the central nervous system (CNS) are progressive and irreversible diseases leading to devastating impacts on patients' life as they cause cognitive impairment, dementia, and even loss of essential body functions. The development of effective medicines curing CNS disorders is, however, one of the most ambitious challenges due to the extremely complex functions and structures of the human brain. In this regard, there are unmet needs to develop simplified but physiopathologically-relevant brain models. Recent advances in the microfluidic techniques allow multicellular culture forming miniaturized 3D human brains by aligning parts of brain regions with specific cells serving suitable functions. In this review, we overview designs and strategies of microfluidics-based human mini-brains for reconstituting CNS disorders, particularly Alzheimer's disease (AD), Parkinson's disease (PD), traumatic brain injury (TBI), vascular dementia (VD), and environmental risk factor-driven dementia (ERFD). Afterward, the applications of the mini-brains in the area of medical science are introduced in terms of the clarification of pathogenic mechanisms and identification of promising biomarkers. We also present expanded model systems ranging from the CNS to CNS-connecting organ axes to study the entry pathways of pathological risk factors into the brain. Lastly, the advantages and potential challenges of current model systems are addressed with future perspectives.
Collapse
Affiliation(s)
- You Jung Kang
- Institute of Quantum Biophysics, Sungkyunkwan University, Suwon, Republic of Korea.
- Department of Biophysics, Sungkyunkwan University, Suwon, Republic of Korea
| | - Yingqi Xue
- Institute of Quantum Biophysics, Sungkyunkwan University, Suwon, Republic of Korea.
- Department of Biophysics, Sungkyunkwan University, Suwon, Republic of Korea
| | - Jae Hee Shin
- Institute of Quantum Biophysics, Sungkyunkwan University, Suwon, Republic of Korea.
- Department of Biophysics, Sungkyunkwan University, Suwon, Republic of Korea
| | - Hansang Cho
- Institute of Quantum Biophysics, Sungkyunkwan University, Suwon, Republic of Korea.
- Department of Biophysics, Sungkyunkwan University, Suwon, Republic of Korea
- Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University, Suwon, Republic of Korea
| |
Collapse
|
12
|
Pisoni E, Thunis P, De Meij A, Wilson J, Bessagnet B, Crippa M, Guizzardi D, Belis CA, Van Dingenen R. Modelling the air quality benefits of EU climate mitigation policies using two different PM2.5-related health impact methodologies. ENVIRONMENT INTERNATIONAL 2023; 172:107760. [PMID: 36708630 DOI: 10.1016/j.envint.2023.107760] [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: 07/21/2022] [Revised: 01/12/2023] [Accepted: 01/14/2023] [Indexed: 06/18/2023]
Abstract
The EU, seeking to be a global leader in the fight against climate change, is moving ahead with ambitious policies to mitigate greenhouse gases emissions. In this context, the Fit for 55 package (FF55) is a set of proposals to revise and update EU legislation, to ensure that policies are in line with the climate goals of cutting emissions by at least 55% by 2030. Whilst these policies are designed for climate purposes, they will have positive side-effects (co-benefits) on air quality. Separately, additional policies are also in place to reduce emissions of related air pollutants and to improve air quality concentrations on EU territory. In this work, through a modelling study, we analyse the benefits of these policies via the health benefits arising from the resulting reductions in yearly average PM2.5 concentrations. Results are analysed by assessing and comparing morbidity and mortality impacts as computed using both the HRAPIE (Health risks of air pollution in Europe, WHO, as implemented in the CaRBonH model) and the GBD (Global Burden of Disease, as implemented in FASST-GBD model) approaches. Even when considering the uncertainty and variability in the results obtained using the two approaches, it is clear that EU policies can bring health and economic benefit in EU, with several Billions of Euro of benefits both in terms of morbidity and mortality indicators.
Collapse
Affiliation(s)
- E Pisoni
- European Commission, Joint Research Centre (JRC), Ispra, Italy.
| | - P Thunis
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | | | - J Wilson
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - B Bessagnet
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - M Crippa
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - D Guizzardi
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - C A Belis
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - R Van Dingenen
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| |
Collapse
|
13
|
Huang C, Kritikos M, Sosa MS, Hagan T, Domkan A, Meliker J, Pellecchia AC, Santiago-Michels S, Carr MA, Kotov R, Horton M, Gandy S, Sano M, Bromet EJ, Lucchini RG, Clouston SAP, Luft BJ. World Trade Center Site Exposure Duration Is Associated with Hippocampal and Cerebral White Matter Neuroinflammation. Mol Neurobiol 2023; 60:160-170. [PMID: 36242735 PMCID: PMC9758101 DOI: 10.1007/s12035-022-03059-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 10/03/2022] [Indexed: 12/24/2022]
Abstract
Responders to the World Trade Center (WTC) attacks on 9/11/2001 inhaled toxic dust and experienced severe trauma for a prolonged period. Studies report that WTC site exposure duration is associated with peripheral inflammation and risk for developing early-onset dementia (EOD). Free Water Fraction (FWF) can serve as a biomarker for neuroinflammation by measuring in vivo movement of free water across neurons. The present case-controlled study aimed to examine associations between WTC site exposure duration as well as EOD status with increased hippocampal and cerebral neuroinflammation. Ninety-nine WTC responders (mean age of 56) were recruited between 2017 and 2019 (N = 48 with EOD and 51 cognitively unimpaired). Participants were matched on age, sex, occupation, race, education, and post-traumatic stress disorder (PTSD) status. Participants underwent neuroimaging using diffusion tensor imaging protocols for FWF extraction. Region of interest (ROI) analysis and correlational tractography explored topographical distributions of FWF associations. Apolipoprotein-e4 allele (APOEε4) status was available for most responders (N = 91). Hippocampal FWF was significantly associated with WTC site exposure duration (r = 0.30, p = 0.003), as was cerebral white matter FWF (r = 0.20, p = 0.044). ROI analysis and correlational tractography identified regions within the limbic, frontal, and temporal lobes. Hippocampal FWF and its association with WTC exposure duration were highest when the APOEε4 allele was present (r = 0.48, p = 0.039). Our findings demonstrate that prolonged WTC site exposure is associated with increased hippocampal and cerebral white matter neuroinflammation in WTC responders, possibly exacerbated by possession of the APOEε4 allele.
Collapse
Affiliation(s)
- Chuan Huang
- Department of Radiology, Renaissance School of Medicine at Stony Brook, Stony Brook, NY, USA
- Department of Psychiatry, Renaissance School of Medicine at Stony, Brook University, Stony Brook, NY, USA
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY, USA
| | - Minos Kritikos
- Program in Public Health and Department of Family, Population, and Preventive Medicine, Renaissance School of Medicine at Stony Brook University, Health Sciences Center, 101 Nichols Rd#3-071, Stony Brook, NY, 11794, USA
| | - Mario Serrano Sosa
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY, USA
| | - Thomas Hagan
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY, USA
| | - Alan Domkan
- Department of Physiology and Biophysics, Stony Brook University, Stony Brook, NY, USA
| | - Jaymie Meliker
- Program in Public Health and Department of Family, Population, and Preventive Medicine, Renaissance School of Medicine at Stony Brook University, Health Sciences Center, 101 Nichols Rd#3-071, Stony Brook, NY, 11794, USA
| | - Alison C Pellecchia
- Stony Brook World Trade Center Wellness Program, Renaissance School of Medicine at Stony, Brook University, Stony Brook, NY, USA
| | - Stephanie Santiago-Michels
- Stony Brook World Trade Center Wellness Program, Renaissance School of Medicine at Stony, Brook University, Stony Brook, NY, USA
| | - Melissa A Carr
- Stony Brook World Trade Center Wellness Program, Renaissance School of Medicine at Stony, Brook University, Stony Brook, NY, USA
| | - Roman Kotov
- Department of Psychiatry, Renaissance School of Medicine at Stony, Brook University, Stony Brook, NY, USA
| | - Megan Horton
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinair, New York, NY, USA
| | - Sam Gandy
- Center for Cognitive Health and Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Psychiatry and Mount Sinai Alzheimer's Disease Research Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- James J Peters VA Medical Center, 130 West Kingsbridge Road, Bronx, NY, 10468, USA
| | - Mary Sano
- Department of Psychiatry and Mount Sinai Alzheimer's Disease Research Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- James J Peters VA Medical Center, 130 West Kingsbridge Road, Bronx, NY, 10468, USA
| | - Evelyn J Bromet
- Department of Psychiatry, Renaissance School of Medicine at Stony, Brook University, Stony Brook, NY, USA
| | - Roberto G Lucchini
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinair, New York, NY, USA
| | - Sean A P Clouston
- Program in Public Health and Department of Family, Population, and Preventive Medicine, Renaissance School of Medicine at Stony Brook University, Health Sciences Center, 101 Nichols Rd#3-071, Stony Brook, NY, 11794, USA.
| | - Benjamin J Luft
- Stony Brook World Trade Center Wellness Program, Renaissance School of Medicine at Stony, Brook University, Stony Brook, NY, USA
- Department of Medicine, Renaissance School of Medicine at Stony Brook University, Stony Brook, NY, USA
| |
Collapse
|
14
|
Yan YH, Chen TB, Yang CP, Tsai IJ, Yu HL, Wu YS, Huang WJ, Tseng ST, Peng TY, Chou EP. Long-term exposure to particulate matter was associated with increased dementia risk using both traditional approaches and novel machine learning methods. Sci Rep 2022; 12:17130. [PMID: 36224306 PMCID: PMC9556552 DOI: 10.1038/s41598-022-22100-8] [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: 05/31/2022] [Accepted: 10/10/2022] [Indexed: 02/05/2023] Open
Abstract
Air pollution exposure has been linked to various diseases, including dementia. However, a novel method for investigating the associations between air pollution exposure and disease is lacking. The objective of this study was to investigate whether long-term exposure to ambient particulate air pollution increases dementia risk using both the traditional Cox model approach and a novel machine learning (ML) with random forest (RF) method. We used health data from a national population-based cohort in Taiwan from 2000 to 2017. We collected the following ambient air pollution data from the Taiwan Environmental Protection Administration (EPA): fine particulate matter (PM2.5) and gaseous pollutants, including sulfur dioxide (SO2), carbon monoxide (CO), ozone (O3), nitrogen oxide (NOx), nitric oxide (NO), and nitrogen dioxide (NO2). Spatiotemporal-estimated air quality data calculated based on a geostatistical approach, namely, the Bayesian maximum entropy method, were collected. Each subject's residential county and township were reviewed monthly and linked to air quality data based on the corresponding township and month of the year for each subject. The Cox model approach and the ML with RF method were used. Increasing the concentration of PM2.5 by one interquartile range (IQR) increased the risk of dementia by approximately 5% (HR = 1.05 with 95% CI = 1.04-1.05). The comparison of the performance of the extended Cox model approach with the RF method showed that the prediction accuracy was approximately 0.7 by the RF method, but the AUC was lower than that of the Cox model approach. This national cohort study over an 18-year period provides supporting evidence that long-term particulate air pollution exposure is associated with increased dementia risk in Taiwan. The ML with RF method appears to be an acceptable approach for exploring associations between air pollutant exposure and disease.
Collapse
Affiliation(s)
- Yuan-Horng Yan
- grid.415517.30000 0004 0572 8068Department of Endocrinology and Metabolism, Kuang Tien General Hospital, Taichung, Taiwan ,grid.415517.30000 0004 0572 8068Department of Medical Research, Kuang Tien General Hospital, Taichung, Taiwan ,grid.411432.10000 0004 1770 3722Institute of Biomedical Nutrition, Hungkuang University, Taichung, Taiwan
| | - Ting-Bin Chen
- grid.410764.00000 0004 0573 0731Department of Neurology, Neurological Institute, Taichung Veterans General Hospital, Taichung, Taiwan ,grid.411432.10000 0004 1770 3722Department of Applied Cosmetology, Hungkuang University, Taichung, Taiwan
| | - Chun-Pai Yang
- grid.415517.30000 0004 0572 8068Department of Medical Research, Kuang Tien General Hospital, Taichung, Taiwan ,grid.411432.10000 0004 1770 3722Institute of Biomedical Nutrition, Hungkuang University, Taichung, Taiwan ,grid.415517.30000 0004 0572 8068Department of Neurology, Kuang Tien General Hospital, Taichung, Taiwan
| | - I-Ju Tsai
- grid.415517.30000 0004 0572 8068Department of Medical Research, Kuang Tien General Hospital, Taichung, Taiwan
| | - Hwa-Lung Yu
- grid.19188.390000 0004 0546 0241Department of Bioenvironmental Systems Engineering, National Taiwan University, Taipei, Taiwan
| | - Yuh-Shen Wu
- grid.411432.10000 0004 1770 3722Department of Safety, Health, and Environmental Engineering, Hungkuang University, Taichung, Taiwan
| | - Winn-Jung Huang
- grid.411432.10000 0004 1770 3722Department of Safety, Health, and Environmental Engineering, Hungkuang University, Taichung, Taiwan
| | - Shih-Ting Tseng
- grid.415517.30000 0004 0572 8068Division of Endocrinology and Metabolism, Department of Internal Medicine, Kuang Tien General Hospital, Taichung, Taiwan ,Jenteh Junior College of Medicine, Nursing and Management, Miaoli County, Taiwan
| | - Tzu-Yu Peng
- grid.412042.10000 0001 2106 6277Department of Statistics, National Chengchi University, No. 64, Sec. 2, Zhinan Rd., Wenshan Dist., Taipei City, 116 Taiwan
| | - Elizabeth P. Chou
- grid.412042.10000 0001 2106 6277Department of Statistics, National Chengchi University, No. 64, Sec. 2, Zhinan Rd., Wenshan Dist., Taipei City, 116 Taiwan
| |
Collapse
|
15
|
Chen TF, Lee SH, Zheng WR, Hsu CC, Cho KH, Kuo LW, Chou CCK, Chiu MJ, Tee BL, Cheng TJ. White matter pathology in alzheimer's transgenic mice with chronic exposure to low-level ambient fine particulate matter. Part Fibre Toxicol 2022; 19:44. [PMID: 35768852 PMCID: PMC9245233 DOI: 10.1186/s12989-022-00485-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 04/29/2022] [Indexed: 03/13/2023] Open
Abstract
Background Air pollution, especially fine particulate matter (PM), can cause brain damage, cognitive decline, and an increased risk of neurodegenerative disease, especially alzheimer’s disease (AD). Typical pathological findings of amyloid and tau protein accumulation have been detected in the brain after exposure in animal studies. However, these observations were based on high levels of PM exposure, which were far from the WHO guidelines and those present in our environment. In addition, white matter involvement by air pollution has been less reported. Thus, this experiment was designed to simulate the true human world and to discuss the possible white matter pathology caused by air pollution. Results 6 month-old female 3xTg-AD mice were divided into exposure and control groups and housed in the Taipei Air Pollutant Exposure System (TAPES) for 5 months. The mice were subjected to the Morris water maze test after exposure and were then sacrificed with brain dissection for further analyses. The mean mass concentration of PM2.5 during the exposure period was 13.85 μg/m3. After exposure, there was no difference in spatial learning function between the two groups, but there was significant decay of memory in the exposure group. Significantly decreased total brain volume and more neuronal death in the cerebral and entorhinal cortex and demyelination of the corpus callosum were noted by histopathological staining after exposure. However, there was no difference in the accumulation of amyloid or tau on immunohistochemistry staining. For the protein analysis, amyloid was detected at significantly higher levels in the cerebral cortex, with lower expression of myelin basic protein in the white matter. A diffuse tensor image study also revealed insults in multiple white matter tracts, including the optic tract. Conclusions In conclusion, this pilot study showed that even chronic exposure to low PM2.5 concentrations still caused brain damage, such as gross brain atrophy, cortical neuron damage, and multiple white matter tract damage. Typical amyloid cascade pathology did not appear prominently in the vulnerable brain region after exposure. These findings imply that multiple pathogenic pathways induce brain injury by air pollution, and the optic nerve may be another direct invasion route in addition to olfactory nerve. Supplementary Information The online version contains supplementary material available at 10.1186/s12989-022-00485-8.
Collapse
Affiliation(s)
- Ta-Fu Chen
- Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
| | - Sheng-Han Lee
- Institute of Environmental and Occupational Health Sciences, College of Public Health, National Taiwan University, Room 720, No. 17, Xuzhou Rd, Taipei, 100, Taiwan
| | - Wan-Ru Zheng
- Institute of Environmental and Occupational Health Sciences, College of Public Health, National Taiwan University, Room 720, No. 17, Xuzhou Rd, Taipei, 100, Taiwan
| | - Ching-Chou Hsu
- Institute of Environmental and Occupational Health Sciences, College of Public Health, National Taiwan University, Room 720, No. 17, Xuzhou Rd, Taipei, 100, Taiwan
| | - Kuan-Hung Cho
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli, Taiwan
| | - Li-Wei Kuo
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli, Taiwan.,Institute of Medical Device and Imaging, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Charles C-K Chou
- Research Center for Environmental Changes, Academia Sinica, Taipei, Taiwan
| | - Ming-Jang Chiu
- Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
| | - Boon Lead Tee
- Department of Neurology, Memory and Aging Center, University of California at San Francisco, San Francisco, CA, USA
| | - Tsun-Jen Cheng
- Institute of Environmental and Occupational Health Sciences, College of Public Health, National Taiwan University, Room 720, No. 17, Xuzhou Rd, Taipei, 100, Taiwan. .,Department of Public Health, College of Public Health, National Taiwan University, Taipei, Taiwan.
| |
Collapse
|
16
|
Smoot J, Padilla S, Farraj AK. The utility of alternative models in particulate matter air pollution toxicology. Curr Res Toxicol 2022; 3:100077. [PMID: 35676914 PMCID: PMC9168130 DOI: 10.1016/j.crtox.2022.100077] [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: 03/03/2022] [Revised: 05/04/2022] [Accepted: 05/25/2022] [Indexed: 11/29/2022] Open
Abstract
Countless unique particulate matter (PM) samples with limited or no toxicity information. Alternative in vivo models offer greater throughput than traditional mammalian models. Use of zebrafish, fruit flies, and nematodes in PM toxicology lacks systematic review. Their utility in PM toxicity and mechanistic research and as screening tools is reviewed.
Exposure to particulate matter (PM) air pollution increases risk of adverse human health effects. As more attention is brought to bear on the problem of PM, traditional mammalian in vivo models struggle to keep up with the risk assessment challenges posed by the countless number of unique PM samples across air sheds with limited or no toxicity information. This review examines the utility of three higher throughput, alternative, in vivo animal models in PM toxicity research: Danio rerio (zebrafish), Caenorhabditis elegans (nematode), and Drosophila melanogaster (fruit fly). These model organisms vary in basic biology, ease of handling, methods of exposure to PM, number and types of available assays, and the degree to which they mirror human biology and responsiveness, among other differences. The use of these models in PM research dates back over a decade, with assessments of the toxicity of various PM sources including traffic-related combustion emissions, wildland fire smoke, and coal fly ash. This article reviews the use of these alternative model organisms in PM toxicity studies, their biology, the various assays developed, endpoints measured, their strengths and limitations, as well as their potential role in PM toxicity assessment and mechanistic research going forward.
Collapse
Affiliation(s)
- Jacob Smoot
- Oak Ridge Institute for Science and Education, Oak Ridge, TN, United States
| | - Stephanie Padilla
- Biomolecular and Computational Toxicology Division, Center for Computational Toxicology and Exposure, US EPA, RTP, NC, United States
| | - Aimen K. Farraj
- Public Health and Integrated Toxicology Division, US EPA, RTP, NC, United States
- Corresponding author.
| |
Collapse
|
17
|
Abstract
PURPOSE OF REVIEW There is increasing interest in the links between exposure to air pollution and a range of health outcomes. The association with mental health however is much less established. This article reviews developments in the field over the past 12 months, highlighting the evidence for causation, associations between multiple air pollutants and mental health outcomes, and assesses the challenges of researching this topic. RECENT FINDINGS Increasingly rigorous methods are being applied to the investigation of a broader range of mental health outcomes. These methods include basic science, neuroimaging, and observational studies representing diverse geographical locations. Cohort studies with linked high-resolution air pollutant exposure data are common, facilitating advanced analytic methods. To date, meta-analyses have demonstrated small and significant positive associations between long-term exposure to fine particulate matter and depressive symptoms and cognitive decline. Methodological complexities in measuring exposure and outcome pose ongoing difficulties for the field. SUMMARY Literature on this topic has recently seen an appreciable expansion. Work that better estimates daily exposure, controls for complex confounders, and is driven by hypotheses founded in candidate causal mechanisms would help clarify associations, and inform targeted interventions and policymakers.
Collapse
|
18
|
The pathogenic effects of particulate matter on neurodegeneration: a review. J Biomed Sci 2022; 29:15. [PMID: 35189880 PMCID: PMC8862284 DOI: 10.1186/s12929-022-00799-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 02/16/2022] [Indexed: 12/15/2022] Open
Abstract
The increasing amount of particulate matter (PM) in the ambient air is a pressing public health issue globally. Epidemiological studies involving data from millions of patients or volunteers have associated PM with increased risk of dementia and Alzheimer’s disease in the elderly and cognitive dysfunction and neurodegenerative pathology across all age groups, suggesting that PM may be a risk factor for neurodegenerative diseases. Neurodegenerative diseases affect an increasing population in this aging society, putting a heavy burden on economics and family. Therefore, understanding the mechanism by which PM contributes to neurodegeneration is essential to develop effective interventions. Evidence in human and animal studies suggested that PM induced neurodenegerative-like pathology including neurotoxicity, neuroinflammation, oxidative stress, and damage in blood–brain barrier and neurovascular units, which may contribute to the increased risk of neurodegeneration. Interestingly, antagonizing oxidative stress alleviated the neurotoxicity of PM, which may underlie the essential role of oxidative stress in PM’s potential effect in neurodegeneration. This review summarized up-to-date epidemiological and experimental studies on the pathogenic role of PM in neurodegenerative diseases and discussed the possible underlying mechanisms.
Collapse
|