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Totten MS, Howell JM, Tomberlin JA, Erikson KM. Relationship Between a High-Fat Diet, Reduced Mobility, and Trace Element Overload in the Olfactory Bulbs of C57BL/6J and DBA/2J Mice. Biol Trace Elem Res 2024; 202:3215-3224. [PMID: 37864044 DOI: 10.1007/s12011-023-03911-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 10/06/2023] [Indexed: 10/22/2023]
Abstract
The dysregulation of trace elements in the brain, which can be caused by genetic or environmental factors, has been associated with disease and compromised mobility. Research regarding trace elements and motor function has focused mainly on the basal ganglia, but few studies have examined the olfactory bulb in this context. Diets high in fat have been shown to have consequences of dysregulated iron and manganese in the brain and disrupted motor activity. The aim of our study was to examine the relationship between mobility and trace element disruption in the olfactory bulb in male and female C57BL/6J and DBA/2J mice fed a high-fat diet. Mobility was significantly reduced in male C57BL/6Js, but the correlation between iron and manganese in the olfactory bulb with velocity, distance travelled, and habituation was not statistically significant. However, there appears to be an overall pattern of a high-fat diet having a statistically significant impact individually on elevated iron and manganese in the olfactory bulb, reduced velocity, reduced distance travelled, and reduced habituation mainly in the male C57BL/6J strain. We found similar trends within the scientific literature to suggest that dysregulated trace element status in the olfactory bulb may be related to motor function in both humans and animals and that males may be more susceptible to the negative outcomes. Our findings contribute new information regarding the impact of diet on the brain, behavior, and potential connection between trace element dysregulation in the olfactory bulb with mobility.
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Affiliation(s)
- Melissa S Totten
- Department of Chemistry and Physics, Salem College, Winston-Salem, NC, USA.
| | - Jenna M Howell
- Department of Chemistry and Physics, Salem College, Winston-Salem, NC, USA
| | | | - Keith M Erikson
- Department of Nutrition, University of North Carolina at Greensboro, Greensboro, NC, USA
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Pajarillo E, Nyarko-Danquah I, Digman A, Multani HK, Kim S, Gaspard P, Aschner M, Lee E. Mechanisms of manganese-induced neurotoxicity and the pursuit of neurotherapeutic strategies. Front Pharmacol 2022; 13:1011947. [PMID: 36605395 PMCID: PMC9808094 DOI: 10.3389/fphar.2022.1011947] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 12/01/2022] [Indexed: 01/07/2023] Open
Abstract
Chronic exposure to elevated levels of manganese via occupational or environmental settings causes a neurological disorder known as manganism, resembling the symptoms of Parkinson's disease, such as motor deficits and cognitive impairment. Numerous studies have been conducted to characterize manganese's neurotoxicity mechanisms in search of effective therapeutics, including natural and synthetic compounds to treat manganese toxicity. Several potential molecular targets of manganese toxicity at the epigenetic and transcriptional levels have been identified recently, which may contribute to develop more precise and effective gene therapies. This review updates findings on manganese-induced neurotoxicity mechanisms on intracellular insults such as oxidative stress, inflammation, excitotoxicity, and mitophagy, as well as transcriptional dysregulations involving Yin Yang 1, RE1-silencing transcription factor, transcription factor EB, and nuclear factor erythroid 2-related factor 2 that could be targets of manganese neurotoxicity therapies. This review also features intracellular proteins such as PTEN-inducible kinase 1, parkin, sirtuins, leucine-rich repeat kinase 2, and α-synuclein, which are associated with manganese-induced dysregulation of autophagy/mitophagy. In addition, newer therapeutic approaches to treat manganese's neurotoxicity including natural and synthetic compounds modulating excitotoxicity, autophagy, and mitophagy, were reviewed. Taken together, in-depth mechanistic knowledge accompanied by advances in gene and drug delivery strategies will make significant progress in the development of reliable therapeutic interventions against manganese-induced neurotoxicity.
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Affiliation(s)
- Edward Pajarillo
- Department of Pharmaceutical Science, College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL, United States
| | - Ivan Nyarko-Danquah
- Department of Pharmaceutical Science, College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL, United States
| | - Alexis Digman
- Department of Pharmaceutical Science, College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL, United States
| | - Harpreet Kaur Multani
- Department of Biology, College of Science and Technology, Florida A&M University, Tallahassee, FL, United States
| | - Sanghoon Kim
- Department of Pharmaceutical Science, College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL, United States
| | - Patric Gaspard
- Department of Pharmaceutical Science, College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL, United States
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, New York, NY, United States
| | - Eunsook Lee
- Department of Pharmaceutical Science, College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL, United States
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Foster ML, Bartnikas TB, Maresca-Fichter HC, Mercadante C, Dash M, Miller C, Dorman DC. Interactions of manganese with iron, zinc, and copper in neonatal C57BL/6J and parkin mice following developmental oral manganese exposure. Data Brief 2017; 15:908-915. [PMID: 29159229 PMCID: PMC5683753 DOI: 10.1016/j.dib.2017.10.050] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 10/20/2017] [Indexed: 11/28/2022] Open
Abstract
High dose manganese (Mn) exposure can result in changes in tissue concentrations of other essential metals due to Mn-induced alterations in metal absorption and competition for metal transporters and regulatory proteins. We evaluated responses in mice with a Parkin gene defect (parkin mice) and a wildtype strain (C57BL/6J) following neonatal Mn exposure. Neonatal parkin and C57BL/6J littermates were randomly assigned to 0, 11, or 25 mg Mn/kg-day dose groups with oral exposures occurring from postnatal day (PND) 1 through PND 28. We report liver, femur, olfactory bulb, striatum, and frontal cortex iron, copper, and zinc concentrations and changes in hepatic gene expression of different metal transporters in PND 29 parkin and C57BL/6J mice. A companion manuscript (Foster et al., 2017) [1] describes the primary study findings. This data provides insights into strain differences in the way Mn interacts with other trace metals in mice.
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Affiliation(s)
- Melanie L Foster
- North Carolina State University, College of Veterinary Medicine, 1060 William Moore Drive, Raleigh, NC 27607, USA
| | - Thomas B Bartnikas
- Brown University, Department of Pathology and Laboratory Medicine, 70 Ship St., Rm. 522, Providence, RI 02912, USA
| | - Hailey C Maresca-Fichter
- North Carolina State University, College of Veterinary Medicine, 1060 William Moore Drive, Raleigh, NC 27607, USA
| | - Courtney Mercadante
- Brown University, Department of Pathology and Laboratory Medicine, 70 Ship St., Rm. 522, Providence, RI 02912, USA
| | - Miriam Dash
- Brown University, Department of Pathology and Laboratory Medicine, 70 Ship St., Rm. 522, Providence, RI 02912, USA
| | - Chelsea Miller
- Brown University, Department of Pathology and Laboratory Medicine, 70 Ship St., Rm. 522, Providence, RI 02912, USA
| | - David C Dorman
- North Carolina State University, College of Veterinary Medicine, 1060 William Moore Drive, Raleigh, NC 27607, USA
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