Together with cities in higher-income nations, it is anticipated that the real global ozone is rising in densely populated areas of Asia and Africa. This review aims to discuss the possible neurotoxic pollutants and ozone-induced neurotoxicity: in vitro and in vivo, along with possible biomarkers to assess ozone-related oxidative stress. As a methodical and scientific strategy for hazard identification and risk characterization of human chemical exposures, toxicological risk assessment is increasingly being implemented. While traditional methods are followed by in vitro toxicology, cell culture techniques are being investigated in modern toxicology. In both human and rodent models, aging makes the olfactory circuitry vulnerable to spreading immunological responses from the periphery to the brain because it lacks the blood-brain barrier. The ozone toxicity is elusive as it shows ventral and dorsal root injury cases even in the milder dose. Its potential toxicity should be disclosed to understand further the clear mechanism insights of how it acts in cellular aspects. Human epidemiological research has confirmed the conclusions that prenatal and postnatal exposure to high levels of air pollution are linked to behavioral alterations in offspring. O3 also enhances blood circulation. It has antibacterial action, which may have an impact on the gut microbiota. It also activates immunological, anti-inflammatory, proteasome, and growth factor signaling Prolonged O3 exposure causes oxidative damage to plasma proteins and lipids and damages the structural and functional integrity of the mitochondria. Finally, various studies need to be conducted to identify the potential biomarkers associated with ozone and the brain.
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http://dx.doi.org/10.1016/j.arr.2023.102045 | DOI Listing |
Front Aging Neurosci
October 2024
Department of Neurophysiology, Instituto Nacional de Neurología y Neurocirugía "MVS", Mexico City, Mexico.
Dementia encompasses a spectrum of neurodegenerative disorders significantly impacting global health, with environmental factors increasingly recognized as crucial in their etiology. Among these, ozone, has been identified as a potential exacerbator of neurodegenerative processes, particularly in Alzheimer's disease (AD). Ozone exposure induces the production of reactive oxygen species (ROS), which penetrate the BBB, leading to oxidative damage in neuronal cells.
View Article and Find Full Text PDFAgeing Res Rev
November 2023
Department of Pharmacology, SRM College of Pharmacy, SRMIST, Kattankulathur, Kancheepuram, Tamil Nadu, India. Electronic address:
Together with cities in higher-income nations, it is anticipated that the real global ozone is rising in densely populated areas of Asia and Africa. This review aims to discuss the possible neurotoxic pollutants and ozone-induced neurotoxicity: in vitro and in vivo, along with possible biomarkers to assess ozone-related oxidative stress. As a methodical and scientific strategy for hazard identification and risk characterization of human chemical exposures, toxicological risk assessment is increasingly being implemented.
View Article and Find Full Text PDFInt J Mol Sci
March 2023
Neurological and Endocrine Toxicology Branch, PHITD, CPHEA, ORD, US Environmental Protection Agency, Research Triangle Park, NC 27711, USA.
Exposure to a prototypic air pollutant ozone (O) has been associated with the activation of neuroendocrine stress response along with neural changes in oxidative stress (OS), inflammation, and Alzheimer's disease-like pathologies in susceptible animal models. We hypothesized that neural oxidative and transcriptional changes induced by O in stress responsive regions are sex-dependent. Male and female adult Long-Evans rats were exposed to filtered air or O for two consecutive days (0.
View Article and Find Full Text PDFToxicol Appl Pharmacol
January 2021
Cardiopulmonary and Immunotoxicology Branch, Public Health and Integrated Toxicology Division, CPHEA, ORD, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA. Electronic address:
A critical part of community based human health risk assessment following chemical exposure is identifying sources of susceptibility. Life stage is one such susceptibility. A prototypic air pollutant, ozone (O) induces dysfunction of the pulmonary, cardiac, and nervous systems.
View Article and Find Full Text PDFMol Med Rep
August 2018
Department of Pain Management, Shandong Provincial Hospital Affiliated to Shandong University, Shandong University, Jinan, Shandong 250021, P.R. China.
Administration of ozone (O3) is often used in the treatment of low back pain. Administration of O3 can, however, cause neurotoxicity in spinal cord neurons via induction of endoplasmic reticulum (ER) calcium (Ca2+) release and activation of the Ca2+/calmodulin‑dependent protein kinase II (CaMKII)/mitogen‑activated protein kinase (MAPK) pathway. The aim of the current study was to confirm whether administration of O3 causes ER stress and if the consequential overexpression of adenovirus‑mediated spliced X box binding protein 1 (XBP1s), which is the effector of ER stress and a crucial transcriptional factor gene in charge of cell survival, has a protective effect on spinal cord neurons after O3 exposure.
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