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de Bem Alves AC, Aguiar AS. Caffeine plus haloperidol reduces fatigue in an experimental model of Parkinson's disease - a prospective to A 2AR-D 2R heterodimer antagonism. Purinergic Signal 2024; 20:29-34. [PMID: 36918462 PMCID: PMC10828253 DOI: 10.1007/s11302-023-09933-2] [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: 11/17/2022] [Accepted: 03/07/2023] [Indexed: 03/16/2023] Open
Abstract
Fatigue is a non-motor symptom of Parkinson's disease (PD). Adenosine 2A receptor (A2AR) and compromised dopamine neurotransmission are linked to fatigue. Studies demonstrate that A2AR antagonism potentiates dopamine transmission via dopamine receptor D2 (D2R). However, the heterodimer form of A2AR-D2R in the striatum prompted questions about the therapeutic targets for PD patients. This study investigates the effects of caffeine (A2AR non-selective antagonist) plus haloperidol (D2R selective antagonist) treatment in the fatigue induced by the reserpine model of PD. Reserpinized mice showed impaired motor control in the open field test (p < 0.05) and fatigue in the grip strength meter test (p < 0.05). L-DOPA and caffeine plus haloperidol similarly increased motor control (p < 0.05) and mitigated fatigue (p < 0.05). Our results support the A2AR-D2R heterodimer participation in the central fatigue of PD, and highlight the potential of A2AR-D2R antagonism in the management of PD.
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Affiliation(s)
- Ana Cristina de Bem Alves
- Laboratory of Exercise Biology (LaBioEx), Department of Health Sciences, Federal University of Santa Catarina (UFSC), Ararangua, SC, 88905-120, Brazil.
| | - Aderbal Silva Aguiar
- Laboratory of Exercise Biology (LaBioEx), Department of Health Sciences, Federal University of Santa Catarina (UFSC), Ararangua, SC, 88905-120, Brazil
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de Bem Alves AC, Speck AE, Farias HR, Martins LM, Dos Santos NS, Pannata G, Tavares AP, de Oliveira J, Tomé ÂR, Cunha RA, Aguiar AS. The striatum drives the ergogenic effects of caffeine. Purinergic Signal 2023; 19:673-683. [PMID: 36697868 PMCID: PMC10754785 DOI: 10.1007/s11302-023-09922-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 01/12/2023] [Indexed: 01/27/2023] Open
Abstract
Caffeine is one of the main ergogenic resources used in exercise and sports. Previously, we reported the ergogenic mechanism of caffeine through neuronal A2AR antagonism in the central nervous system [1]. We now demonstrate that the striatum rules the ergogenic effects of caffeine through neuroplasticity changes. Thirty-four Swiss (8-10 weeks, 47 ± 1.5 g) and twenty-four C57BL/6J (8-10 weeks, 23.9 ± 0.4 g) adult male mice were studied behaviorly and electrophysiologically using caffeine and energy metabolism was studied in SH-SY5Y cells. Systemic (15 mg/kg, i.p.) or striatal (bilateral, 15 μg) caffeine was psychostimulant in the open field (p < 0.05) and increased grip efficiency (p < 0.05). Caffeine also shifted long-term depression (LTD) to potentiation (LTP) in striatal slices and increased the mitochondrial mass (p < 0.05) and membrane potential (p < 0.05) in SH-SY5Y dopaminergic cells. Our results demonstrate the role of the striatum in the ergogenic effects of caffeine, with changes in neuroplasticity and mitochondrial metabolism.
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Affiliation(s)
- Ana Cristina de Bem Alves
- LABIOEX-Laboratory of Exercise Biology, Federal University of Santa Catarina-UFSC, Ararangua, SC, 88905-120, Brazil
| | - Ana Elisa Speck
- LABIOEX-Laboratory of Exercise Biology, Federal University of Santa Catarina-UFSC, Ararangua, SC, 88905-120, Brazil
| | - Hémelin Resende Farias
- Post-graduation Program in Biological Sciences, Department of Biochemistry, Institute of Basic Sciences of Health, Federal University of Rio Grande do Sul-UFRGS, Porto Alegre, RS, 90040-060, Brazil
| | - Leo Meira Martins
- Post-graduation Program in Biological Sciences, Department of Physiology, Institute of Basic Sciences of Health, Federal University of Rio Grande do Sul-UFRGS, Porto Alegre, RS, 90050-170, Brazil
| | - Naiara Souza Dos Santos
- LABIOEX-Laboratory of Exercise Biology, Federal University of Santa Catarina-UFSC, Ararangua, SC, 88905-120, Brazil
| | - Gabriela Pannata
- LABIOEX-Laboratory of Exercise Biology, Federal University of Santa Catarina-UFSC, Ararangua, SC, 88905-120, Brazil
| | - Ana Paula Tavares
- LABIOEX-Laboratory of Exercise Biology, Federal University of Santa Catarina-UFSC, Ararangua, SC, 88905-120, Brazil
| | - Jade de Oliveira
- Post-graduation Program in Biological Sciences, Department of Biochemistry, Institute of Basic Sciences of Health, Federal University of Rio Grande do Sul-UFRGS, Porto Alegre, RS, 90040-060, Brazil
| | - Ângelo R Tomé
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504, Coimbra, Portugal
| | - Rodrigo A Cunha
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504, Coimbra, Portugal
- FMUC - Faculty of Medicine, University of Coimbra, 3004-504, Coimbra, Portugal
| | - Aderbal S Aguiar
- LABIOEX-Laboratory of Exercise Biology, Federal University of Santa Catarina-UFSC, Ararangua, SC, 88905-120, Brazil.
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Tyler SE, Tyler LD. Pathways to healing: Plants with therapeutic potential for neurodegenerative diseases. IBRO Neurosci Rep 2023; 14:210-234. [PMID: 36880056 PMCID: PMC9984566 DOI: 10.1016/j.ibneur.2023.01.006] [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: 09/24/2022] [Accepted: 01/25/2023] [Indexed: 02/12/2023] Open
Abstract
Some of the greatest challenges in medicine are the neurodegenerative diseases (NDs), which remain without a cure and mostly progress to death. A companion study employed a toolkit methodology to document 2001 plant species with ethnomedicinal uses for alleviating pathologies relevant to NDs, focusing on its relevance to Alzheimer's disease (AD). This study aimed to find plants with therapeutic bioactivities for a range of NDs. 1339 of the 2001 plant species were found to have a bioactivity from the literature of therapeutic relevance to NDs such as Parkinson's disease, Huntington's disease, AD, motor neurone diseases, multiple sclerosis, prion diseases, Neimann-Pick disease, glaucoma, Friedreich's ataxia and Batten disease. 43 types of bioactivities were found, such as reducing protein misfolding, neuroinflammation, oxidative stress and cell death, and promoting neurogenesis, mitochondrial biogenesis, autophagy, longevity, and anti-microbial activity. Ethno-led plant selection was more effective than random selection of plant species. Our findings indicate that ethnomedicinal plants provide a large resource of ND therapeutic potential. The extensive range of bioactivities validate the usefulness of the toolkit methodology in the mining of this data. We found that a number of the documented plants are able to modulate molecular mechanisms underlying various key ND pathologies, revealing a promising and even profound capacity to halt and reverse the processes of neurodegeneration.
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Key Words
- A-H, Alpers-Huttenlocher syndrome
- AD, Alzheimer’s disease
- ALS, Amyotrophic lateral sclerosis
- BBB, blood-brain barrier
- C. elegans,, Caenorhabditis elegans
- CJD, Creutzfeldt-Jakob disease
- CMT, Charcot–Marie–Tooth disease
- CS, Cockayne syndrome
- Ech A, Echinochrome A
- FDA, Food and Drug Administration
- FRDA, Friedreich’s ataxia
- FTD, Frontotemporal dementia
- HD, Huntington’s disease
- Hsp, Heat shock protein
- LSD, Lysosomal storage diseases
- MS, Multiple sclerosis
- MSA, Multiple system atrophy
- MSP, Multisystem proteinopathy
- Medicinal plant
- ND, neurodegenerative disease
- NPC, Neimann-Pick disease type C
- NSC, neural stem cells
- Neuro-inflammation
- Neurodegeneration
- Neurogenesis
- PC, pharmacological chaperone
- PD, Parkinson’s disease
- Protein misfolding
- SMA, Spinal muscular atrophy
- VD, Vascular dementia
- prion dis, prion diseases
- α-syn, alpha-synuclein
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Affiliation(s)
- Sheena E.B. Tyler
- John Ray Research Field Station, Cheshire, United Kingdom
- Corresponding author.
| | - Luke D.K. Tyler
- School of Natural Sciences, Bangor University, Gwynedd, United Kingdom
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Campos MC, Nery T, Starke AC, de Bem Alves AC, Speck AE, S Aguiar A. Post-viral fatigue in COVID-19: A review of symptom assessment methods, mental, cognitive, and physical impairment. Neurosci Biobehav Rev 2022; 142:104902. [PMID: 36202253 PMCID: PMC9528075 DOI: 10.1016/j.neubiorev.2022.104902] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/26/2022] [Accepted: 10/01/2022] [Indexed: 12/14/2022]
Abstract
Coronavirus 2 is responsible for Severe Acute Respiratory Syndrome-Coronavirus-2 (SARS-CoV-2), and the main sequela is persistent fatigue. Post-viral fatigue is common and affects patients with mild, asymptomatic coronavirus disease-2019 (COVID-19). However, the exact mechanisms involved in developing post-COVID-19 fatigue remain unclear. Furthermore, physical and cognitive impairments in these individuals have been widely described. Therefore, this review aims to summarize and propose tools from a multifaceted perspective to assess COVID-19 infection. Herein, we point out the instruments that can be used to assess fatigue in long-term COVID-19: fatigue in a subjective manner or fatigability in an objective manner. For physical and mental fatigue, structured questionnaires were used to assess perceived symptoms, and physical and cognitive performance assessment tests were used to measure fatigability using reduced performance.
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Affiliation(s)
| | | | | | | | | | - Aderbal S Aguiar
- Correspondence to: Labioex, Federal University of Santa Catarina, Pedro João Pereira, nº 150, Mato Alto, Araranguá, Santa Catarina, Brazil
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Aguiar AS, Speck AE, Canas PM, Cunha RA. Neuronal adenosine A 2A receptors signal ergogenic effects of caffeine. Sci Rep 2020; 10:13414. [PMID: 32770138 PMCID: PMC7415152 DOI: 10.1038/s41598-020-69660-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 07/09/2020] [Indexed: 12/15/2022] Open
Abstract
Caffeine is one of the most used ergogenic aid for physical exercise and sports. However, its mechanism of action is still controversial. The adenosinergic hypothesis is promising due to the pharmacology of caffeine, a nonselective antagonist of adenosine A1 and A2A receptors. We now investigated A2AR as a possible ergogenic mechanism through pharmacological and genetic inactivation. Forty-two adult females (20.0 ± 0.2 g) and 40 male mice (23.9 ± 0.4 g) from a global and forebrain A2AR knockout (KO) colony ran an incremental exercise test with indirect calorimetry (V̇O2 and RER). We administered caffeine (15 mg/kg, i.p., nonselective) and SCH 58261 (1 mg/kg, i.p., selective A2AR antagonist) 15 min before the open field and exercise tests. We also evaluated the estrous cycle and infrared temperature immediately at the end of the exercise test. Caffeine and SCH 58621 were psychostimulant. Moreover, Caffeine and SCH 58621 were ergogenic, that is, they increased V̇O2max, running power, and critical power, showing that A2AR antagonism is ergogenic. Furthermore, the ergogenic effects of caffeine were abrogated in global and forebrain A2AR KO mice, showing that the antagonism of A2AR in forebrain neurons is responsible for the ergogenic action of caffeine. Furthermore, caffeine modified the exercising metabolism in an A2AR-dependent manner, and A2AR was paramount for exercise thermoregulation.
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Affiliation(s)
- Aderbal S Aguiar
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504, Coimbra, Portugal.
- Biology of Exercise Lab, Department of Health Sciences, UFSC-Federal University of Santa Catarina, Araranguá, SC, 88905-120, Brazil.
| | - Ana Elisa Speck
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504, Coimbra, Portugal
- Biology of Exercise Lab, Department of Health Sciences, UFSC-Federal University of Santa Catarina, Araranguá, SC, 88905-120, Brazil
| | - Paula M Canas
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504, Coimbra, Portugal
| | - Rodrigo A Cunha
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504, Coimbra, Portugal
- FMUC - Faculty of Medicine, University of Coimbra, 3004-504, Coimbra, Portugal
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