1
|
Cui X, Eyles DW. Vitamin D and the Central Nervous System: Causative and Preventative Mechanisms in Brain Disorders. Nutrients 2022; 14:nu14204353. [PMID: 36297037 PMCID: PMC9610817 DOI: 10.3390/nu14204353] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/13/2022] [Accepted: 09/13/2022] [Indexed: 11/16/2022] Open
Abstract
Twenty of the last one hundred years of vitamin D research have involved investigations of the brain as a target organ for this hormone. Our group was one of the first to investigate brain outcomes resulting from primarily restricting dietary vitamin D during brain development. With the advent of new molecular and neurochemical techniques in neuroscience, there has been increasing interest in the potential neuroprotective actions of vitamin D in response to a variety of adverse exposures and how this hormone could affect brain development and function. Rather than provide an exhaustive summary of this data and a listing of neurological or psychiatric conditions that vitamin D deficiency has been associated with, here, we provide an update on the actions of this vitamin in the brain and cellular processes vitamin D may be targeting in psychiatry and neurology.
Collapse
Affiliation(s)
- Xiaoying Cui
- Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol Q4076, Australia
- Queensland Brain Institute, University of Queensland, St Lucia Q4076, Australia
| | - Darryl W. Eyles
- Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol Q4076, Australia
- Queensland Brain Institute, University of Queensland, St Lucia Q4076, Australia
- Correspondence:
| |
Collapse
|
2
|
Pinto S, Correia-de-Sá T, Sampaio-Maia B, Vasconcelos C, Moreira P, Ferreira-Gomes J. Eating Patterns and Dietary Interventions in ADHD: A Narrative Review. Nutrients 2022; 14:nu14204332. [PMID: 36297016 PMCID: PMC9608000 DOI: 10.3390/nu14204332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 10/11/2022] [Accepted: 10/12/2022] [Indexed: 11/06/2022] Open
Abstract
Attention Deficit Hyperactivity Disorder (ADHD) is one of the most common neurodevelopmental disorders in childhood, affecting ~7% of children and adolescents. Given its adverse health outcomes and high healthcare and societal costs, other treatment options beyond pharmacotherapy have been explored. Case-control studies have shown that dietary patterns may influence the risk of ADHD, and specific dietary interventions have been proposed as coadjuvant treatments in this disorder. These include nutritional supplements, gut microbiome-targeted interventions with biotics, and elimination diets. The purpose of this review is to examine which dietary patterns are most associated with ADHD and to summarize the existing evidence for the clinical use of dietary interventions. The literature showed that non-healthy dietary patterns were positively associated with ADHD, whereas healthy patterns were negatively associated. As for nutritional supplements, only vitamin D and vitamin D + magnesium appeared to improve ADHD symptoms when baseline levels of vitamin D were insufficient/deficient. Regarding biotics, evidence was only found for Lactobacillus rhamnosus GG and for multi-species probiotic supplementation. Elimination diets have scarce evidence and lead to nutritional deficiencies, so caution is advised. Overall, more robust scientific evidence is required for these dietary interventions to be implemented as part of ADHD therapy.
Collapse
Affiliation(s)
- Sofia Pinto
- Faculty of Nutrition and Food Sciences, University of Porto, 4150-180 Porto, Portugal
| | - Teresa Correia-de-Sá
- Department of Biomedicine, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
- INEB—Institute of Biomedical Engineering, University of Porto, 4200-135 Porto, Portugal
- i3S—Institute for Research & Innovation in Health, University of Porto, 4200-135 Porto, Portugal
| | - Benedita Sampaio-Maia
- INEB—Institute of Biomedical Engineering, University of Porto, 4200-135 Porto, Portugal
- i3S—Institute for Research & Innovation in Health, University of Porto, 4200-135 Porto, Portugal
- Faculty of Dental Medicine, University of Porto, 4200-393 Porto, Portugal
| | - Carla Vasconcelos
- Faculty of Nutrition and Food Sciences, University of Porto, 4150-180 Porto, Portugal
- Nutrition Service, University Hospital Center of São João, 4200-319 Porto, Portugal
| | - Pedro Moreira
- Faculty of Nutrition and Food Sciences, University of Porto, 4150-180 Porto, Portugal
- EPIUnit, Institute of Public Health, University of Porto, 4200-450 Porto, Portugal
- Correspondence: ; Tel.: +351-225-074-320
| | - Joana Ferreira-Gomes
- Department of Biomedicine, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
- i3S—Institute for Research & Innovation in Health, University of Porto, 4200-135 Porto, Portugal
- IBMC—Institute for Molecular and Cell Biology, University of Porto, 4200-135 Porto, Portugal
| |
Collapse
|