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Lopes-Silva LB, Cunha DMG, Lima AC, Bioni VS, Gonçalves N, Kurita JPF, Wuo-Silva R, Silva RH. Sleep deprivation induces late deleterious effects in a pharmacological model of Parkinsonism. Exp Brain Res 2024:10.1007/s00221-024-06811-0. [PMID: 38499659 DOI: 10.1007/s00221-024-06811-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 02/18/2024] [Indexed: 03/20/2024]
Abstract
Parkinson's disease is a degenerative, chronic and progressive disease, characterized by motor dysfunctions. Patients also exhibit non-motor symptoms, such as affective and sleep disorders. Sleep disorders can potentiate clinical and neuropathological features and lead to worse prognosis. The goal of this study was to evaluate the effects of sleep deprivation (SD) in mice submitted to a progressive pharmacological model of Parkinsonism (chronic administration with a low dose of reserpine). Male Swiss mice received 20 injections of reserpine (0.1 mg/kg) or vehicle, on alternate days. SD was applied before or during reserpine treatment and was performed by gentle handling for 6 h per day for 10 consecutive days. Animals were submitted to motor and non-motor behavioral assessments and neurochemical evaluations. Locomotion was increased by SD and decreased by reserpine treatment. SD during treatment delayed the onset of catalepsy, but SD prior to treatment potentiated reserpine-induced catalepsy. Thus, although SD induced an apparent beneficial effect on motor parameters, a delayed deleterious effect on alterations induced by reserpine was found. In the object recognition test, both SD and reserpine treatment produced cognitive deficits. In addition, the association between SD and reserpine induced anhedonic-like behavior. Finally, an increase in oxidative stress was found in hippocampus of mice subjected to SD, and tyrosine hydroxylase immunoreactivity was reduced in substantia nigra of reserpine-treated animals. Results point to a possible late effect of SD, aggravating the deficits in mice submitted to the reserpine progressive model of PD.
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Affiliation(s)
- L B Lopes-Silva
- Behavioral Neuroscience Laboratory, Department of Pharmacology, Universidade Federal de São Paulo (EPM/UNIFESP), Rua Botucatu, 862, Ed. Leal Prado, São Paulo, Brazil
| | - D M G Cunha
- Behavioral Neuroscience Laboratory, Department of Pharmacology, Universidade Federal de São Paulo (EPM/UNIFESP), Rua Botucatu, 862, Ed. Leal Prado, São Paulo, Brazil
| | - A C Lima
- Behavioral Neuroscience Laboratory, Department of Pharmacology, Universidade Federal de São Paulo (EPM/UNIFESP), Rua Botucatu, 862, Ed. Leal Prado, São Paulo, Brazil
| | - V S Bioni
- Behavioral Neuroscience Laboratory, Department of Pharmacology, Universidade Federal de São Paulo (EPM/UNIFESP), Rua Botucatu, 862, Ed. Leal Prado, São Paulo, Brazil
| | - N Gonçalves
- Behavioral Neuroscience Laboratory, Department of Pharmacology, Universidade Federal de São Paulo (EPM/UNIFESP), Rua Botucatu, 862, Ed. Leal Prado, São Paulo, Brazil
| | - J P F Kurita
- Behavioral Neuroscience Laboratory, Department of Pharmacology, Universidade Federal de São Paulo (EPM/UNIFESP), Rua Botucatu, 862, Ed. Leal Prado, São Paulo, Brazil
| | - R Wuo-Silva
- Behavioral Neuroscience Laboratory, Department of Pharmacology, Universidade Federal de São Paulo (EPM/UNIFESP), Rua Botucatu, 862, Ed. Leal Prado, São Paulo, Brazil
| | - R H Silva
- Behavioral Neuroscience Laboratory, Department of Pharmacology, Universidade Federal de São Paulo (EPM/UNIFESP), Rua Botucatu, 862, Ed. Leal Prado, São Paulo, Brazil.
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Li B, Deng S, Jiang H, Zhu W, Zhuo B, Du Y, Meng Z. The mechanistic effects of acupuncture in rodent neurodegenerative disease models: a literature review. Front Neurosci 2024; 18:1323555. [PMID: 38500484 PMCID: PMC10944972 DOI: 10.3389/fnins.2024.1323555] [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: 10/19/2023] [Accepted: 02/20/2024] [Indexed: 03/20/2024] Open
Abstract
Neurodegenerative diseases refer to a battery of medical conditions that affect the survival and function of neurons in the brain, which are mainly presented with progressive loss of cognitive and/or motor function. Acupuncture showed benign effects in improving neurological deficits, especially on movement and cognitive function impairment. Here, we reviewed the therapeutic mechanisms of acupuncture at the neural circuit level in movement and cognition disorders, summarizing the influence of acupuncture in the dopaminergic system, glutamatergic system, γ-amino butyric acid-ergic (GABAergic) system, serotonergic system, cholinergic system, and glial cells at the circuit and synaptic levels. These findings can provide targets for clinical treatment and perspectives for further studies.
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Affiliation(s)
- Boxuan Li
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Shizhe Deng
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Hailun Jiang
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Weiming Zhu
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Bifang Zhuo
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yuzheng Du
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Zhihong Meng
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
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Alqurashi M, Al-Abbasi F, Afzal M, Alghamdi A, Zeyadi M, Sheikh R, Alshehri S, Imam S, Sayyed N, Kazmi I. Protective effect of sterubin against neurochemical and behavioral impairments in rotenone-induced Parkinson's disease. Braz J Med Biol Res 2024; 57:e12829. [PMID: 38359270 PMCID: PMC10868181 DOI: 10.1590/1414-431x2023e12829] [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: 09/29/2023] [Accepted: 12/18/2023] [Indexed: 02/17/2024] Open
Abstract
This study was conducted to evaluate how sterubin affects rotenone-induced Parkinson's disease (PD) in rats. A total of 24 rats were distributed into 4 equal groups: normal saline control and rotenone control were administered saline or rotenone (ROT), respectively, orally; sterubin 10 received ROT + sterubin 10 mg/kg po; and sterubin alone was administered to the test group (10 mg/kg). Rats of the normal saline and sterubin alone groups received sunflower oil injection (sc) daily, 1 h after receiving the treatments cited above, while rats of the other groups received rotenone injection (0.5 mg/kg, sc). The treatment was continued over the course of 28 days daily. On the 29th day, catalepsy and akinesia were assessed. The rats were then euthanized, and the brain was extracted for estimation of endogenous antioxidants (MDA: malondialdehyde, GSH: reduced glutathione, CAT: catalase, SOD: superoxide dismutase), nitrative (nitrite) stress markers, neuroinflammatory cytokines, and neurotransmitter levels and their metabolites (3,4-dihydroxyphenylacetic acid (DOPAC), dopamine (DA), norepinephrine (NE), serotonin (5-HT), 5-hydroxyindoleacetic acid (5-HIAA), and homovanillic acid (HVA)). Akinesia and catatonia caused by ROT reduced the levels of endogenous antioxidants (GSH, CAT, and SOD), elevated the MDA level, and altered the levels of nitrites, neurotransmitters, and their metabolites. Sterubin restored the neurobehavioral deficits, oxidative stress, and metabolites of altered neurotransmitters caused by ROT. Results demonstrated the anti-Parkinson's activities of sterubin in ROT-treated rats.
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Affiliation(s)
- M.M. Alqurashi
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - F.A. Al-Abbasi
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - M. Afzal
- Department of Pharmaceutical Sciences, Pharmacy Program, Batterjee Medical College, Jeddah, Saudi Arabia
| | - A.M. Alghamdi
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - M. Zeyadi
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - R.A. Sheikh
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
- Experimental Biochemistry Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - S. Alshehri
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - S.S. Imam
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - N. Sayyed
- School of Pharmacy, Glocal University, Saharanpur, India
| | - I. Kazmi
- Department of Biochemistry, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
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Carrick FR, Hernandez LSAV, Sugaya K. Amelioration of Motor Performance and Nigrostriatal Dopamine Cell Volume Using a Novel Far-Infrared Ceramic Blanket in an A53T Alpha-Synuclein Transgenic Parkinson's Disease Mouse Model. Curr Issues Mol Biol 2023; 45:9823-9837. [PMID: 38132459 PMCID: PMC10742635 DOI: 10.3390/cimb45120613] [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: 10/31/2023] [Revised: 11/29/2023] [Accepted: 12/01/2023] [Indexed: 12/23/2023] Open
Abstract
We had attended a Parkinson's Disease (PD) patient for a non-healing wound who reported a marked decrease in his hand tremor and freezing of gait when his wound was exposed to a ceramic far-field infrared (cFIR) blanket. PD is the most frequent motor disorder and the second most frequent neurodegenerative disease after Alzheimer's Disease (AD). The tremor, rigidity, and slowness of movement associated with Parkinson's disease (PD) affect up to 10 million people throughout the world, and the major contributing factor to the pathogenesis of PD is the accumulation and propagation of pathological α-synuclein (α-Syn) and the death of dopaminergic cells in the Nigrostriatal system. Efforts to slow or stop its spreading have resulted in the development and use of dopaminergic drug replacement therapy. Unfortunately, there is a loss of about 70-80% of substantia nigral dopaminergic neurons in patients by the time they are diagnosed with PD, and various dopaminergic drugs provide only temporary relief of their motor symptoms. There are limitations in treating PD with many conventional medications, necessitating a combination of pharmaceutical and non-pharmacological therapy as an essential adjunct to better address the health and welfare of PD patients. We used male adult A53T alpha-synuclein transgenic mice exposed to a ceramic far-infrared blanket. Motor activity was assessed using the rotarod apparatus, and mouse brains were examined to quantify the fluorescence intensities of the immunostained samples. A53T alpha-synuclein transgenic mice had a significantly shorter time stay on the rotating bar than the wild-type mice (B6C3H). The rotarod performance was significantly improved in A53T alpha-synuclein transgenic mice exposed to cFIR as well as B6C3H healthy wild mice exposed to cFIR. There was a significant statistical and substantive increase in the cellular composition of the Striatum and substantia nigra of cFIR-treated mice. Improvement in motor performance is seen in PD mice and wild mice and is associated with increases in cell volume in the substantia nigra and striatum after treatment.
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Affiliation(s)
- Frederick Robert Carrick
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA;
- Burnett School of Biomedical Science, University of Central Florida, Orlando, FL 32827, USA;
- MGH Institute for Health Professions, Boston, MA 02129, USA
- Centre for Mental Health Research in Association, University of Cambridge, Cambridge CB2 1TN, UK
- Department of Neurology, Carrick Institute, Cape Canaveral, FL 32920, USA
| | | | - Kiminobu Sugaya
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA;
- Burnett School of Biomedical Science, University of Central Florida, Orlando, FL 32827, USA;
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Haddad R, Panicker JN, Verbakel I, Dhondt K, Ghijselings L, Hervé F, Petrovic M, Whishaw M, Bliwise DL, Everaert K. The low dopamine hypothesis: A plausible mechanism underpinning residual urine, overactive bladder and nocturia (RON) syndrome in older patients. Prog Urol 2023; 33:155-171. [PMID: 36710124 DOI: 10.1016/j.purol.2023.01.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 12/21/2022] [Accepted: 01/09/2023] [Indexed: 01/29/2023]
Abstract
INTRODUCTION Aging is associated with a combination of several lower urinary tract (LUT) signs and symptoms, including residual urine, overactive bladder and nocturia. One of the mechanisms of this LUT dysfunction that has not been discussed in dept so far is the role of dopamine (DA). METHODS In this narrative review, we explore the dopaminergic hypothesis in the development of this combination of LUT signs and symptoms in older adults. RESULTS DA is one of the neurotransmitters whose regulation and production is disrupted in aging. In synucleinopathies, altered DAergic activity is associated with the occurrence of LUTS and sleep disorders. Projections of DAergic neurons are involved in the regulation of sleep, diuresis, and bladder activity. The low dopamine hypothesis could explain the genesis of a set of LUT signs and symptoms commonly seen in this population, including elevated residual urine, Overactive bladder syndrome and Nocturia (discussed as the RON syndrome). This presentation is however also common in older patients without synucleinopathies or neurological disorders and therefore we hypothesise that altered DAergic activity because of pathological aging, and selective destruction of DAergic neurons, could underpin the presentation of this triad of LUT dysfunction in the older population. CONCLUSION The concept of RON syndrome helps to better understand this common phenotypic presentation in clinical practice, and therefore serves as a useful platform to diagnose and treat LUTS in older adults. Besides recognizing the synucleinopathy "red flag" symptoms, this set of multi-causal LUT signs and symptoms highlights the inevitable need for combination therapy, a challenge in older people with their comorbidities and concomitant medications.
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Affiliation(s)
- R Haddad
- Department of Urology, NOPIA Research Group, Ghent University Hospital, Ghent, Belgium; GRC 001 GREEN Neuro-Urology Research Group, Sorbonne Université, Rothschild Academic Hospital, AP-HP, 75012 Paris, France.
| | - J N Panicker
- Department of Uro-Neurology, The National Hospital for Neurology and Neurosurgery and Department of Brain Repair and Rehabilitation, UCL Queen Square Institute of Neurology, Faculty of Brain Sciences, University College London, London, United Kingdom
| | - I Verbakel
- Department of Urology, NOPIA Research Group, Ghent University Hospital, Ghent, Belgium
| | - K Dhondt
- Department of Psychiatry, Pediatric sleep center, Ghent University Hospital, Ghent, Belgium
| | - L Ghijselings
- Department of Urology, NOPIA Research Group, Ghent University Hospital, Ghent, Belgium
| | - F Hervé
- Department of Urology, NOPIA Research Group, Ghent University Hospital, Ghent, Belgium; Department of Urology, Cliniques Universitaires Saint Luc, Brussels, Belgium
| | - M Petrovic
- Department of Geriatrics, Ghent University Hospital, Ghent, Belgium
| | - M Whishaw
- Department of Aged Care, Royal Melbourne Hospital, Melbourne, Australia
| | - D L Bliwise
- Department of Neurology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - K Everaert
- Department of Urology, NOPIA Research Group, Ghent University Hospital, Ghent, Belgium
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Kearney PJ, Bolden NC, Kahuno E, Conklin TL, Martin GE, Lubec G, Melikian HE. Presynaptic Gq-coupled receptors drive biphasic dopamine transporter trafficking that modulates dopamine clearance and motor function. J Biol Chem 2023; 299:102900. [PMID: 36640864 PMCID: PMC9943899 DOI: 10.1016/j.jbc.2023.102900] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 12/23/2022] [Accepted: 01/03/2023] [Indexed: 01/13/2023] Open
Abstract
Extracellular dopamine (DA) levels are constrained by the presynaptic DA transporter (DAT), a major psychostimulant target. Despite its necessity for DA neurotransmission, DAT regulation in situ is poorly understood, and it is unknown whether regulated DAT trafficking impacts dopaminergic signaling and/or behaviors. Leveraging chemogenetics and conditional gene silencing, we found that activating presynaptic Gq-coupled receptors, either hM3Dq or mGlu5, drove rapid biphasic DAT membrane trafficking in ex vivo striatal slices, with region-specific differences between ventral and dorsal striata. DAT insertion required D2 DA autoreceptors and intact retromer, whereas DAT retrieval required PKC activation and Rit2. Ex vivo voltammetric studies revealed that DAT trafficking impacts DA clearance. Furthermore, dopaminergic mGlu5 silencing elevated DAT surface expression and abolished motor learning, which was rescued by inhibiting DAT with a subthreshold CE-158 dose. We discovered that presynaptic DAT trafficking is complex, multimodal, and region specific, and for the first time, we identified cell autonomous mechanisms that govern presynaptic DAT tone. Importantly, the findings are consistent with a role for regulated DAT trafficking in DA clearance and motor function.
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Affiliation(s)
- Patrick J. Kearney
- Brudnick Neuropsychiatric Research Institute, Department of Neurobiology, UMASS Chan Medical School, Worcester, Massachusetts, USA,Morningside Graduate School of Biomedical Sciences, UMASS Chan Medical School, Worcester, Massachusetts, USA
| | - Nicholas C. Bolden
- Brudnick Neuropsychiatric Research Institute, Department of Neurobiology, UMASS Chan Medical School, Worcester, Massachusetts, USA,Morningside Graduate School of Biomedical Sciences, UMASS Chan Medical School, Worcester, Massachusetts, USA
| | - Elizabeth Kahuno
- Brudnick Neuropsychiatric Research Institute, Department of Neurobiology, UMASS Chan Medical School, Worcester, Massachusetts, USA
| | - Tucker L. Conklin
- Brudnick Neuropsychiatric Research Institute, Department of Neurobiology, UMASS Chan Medical School, Worcester, Massachusetts, USA
| | - Gilles E. Martin
- Brudnick Neuropsychiatric Research Institute, Department of Neurobiology, UMASS Chan Medical School, Worcester, Massachusetts, USA
| | - Gert Lubec
- Department of Neuroproteomics, Paracelsus Private Medical University, Salzburg, Austria
| | - Haley E. Melikian
- Brudnick Neuropsychiatric Research Institute, Department of Neurobiology, UMASS Chan Medical School, Worcester, Massachusetts, USA,For correspondence: Haley E. Melikian
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Al-Abbasi FA. Neuroprotective effect of butin against rotenone-induced Parkinson’s disease mediated by antioxidant and anti-inflammatory actions through paraoxonase-1-induction. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2022. [DOI: 10.1080/16583655.2022.2128561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2022]
Affiliation(s)
- Fahad A. Al-Abbasi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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Hibiscetin attenuates oxidative, nitrative stress and neuroinflammation via suppression of TNF-α signaling in rotenone induced parkinsonism in rats. Saudi Pharm J 2022; 30:1710-1717. [PMID: 36601498 PMCID: PMC9805976 DOI: 10.1016/j.jsps.2022.09.016] [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: 06/29/2022] [Accepted: 09/28/2022] [Indexed: 12/24/2022] Open
Abstract
Parkinson's disease (PD) is the gradual and selective degradation of dopamine-releasing neurons in substantia nigra pars compacta (SNpc) and results in postural instability, stiffness, bradykinesia, and resting tremor. The goal of this research was to see how hibiscetin action on PD in rotenone-treated rats. Rats were administered orally with hibiscetin (10 mg/kg) after 1 h rotenone (0.5 mg/kg, s.c.). This therapy regimen was followed on a daily basis for 28 days. Rats were tested for catalepsy and akinesia on day 29 after the last dosage of rotenone. Biochemical parameters were performed to measure reduced glutathione (GSH), catalase (CAT), superoxide dismutase (SOD), malondialdehyde (MDA), nitrite, neuroinflammatory cytokines, and neurotransmitter and their metabolite levels such as dopamine (DA), norepinephrine (NE), serotonin (5-HT), 3,4-dihydroxyphenylacetic acid (DOPAC), homovanillic acid (HVA), and 5-hydroxyindoleacetic acid (5-HIAA). Rotenone-induced akinesia and catatonia in rats decreased endogenous antioxidant (GSH, CAT, and SOD) levels, increased MDA and nitrite levels, and changed neurotransmitter and metabolite levels. Hibiscetin effectively reduced rotenone-induced akinesia and catatonia, improved endogenous antioxidant (GSH, CAT and SOD) levels, and reduced oxidative and nitrative stress in the treated rats. Moreover, hibiscetin restored altered neurotransmitters and their metabolites to normal levels in rotenone-treated rats. The study results showed that hibiscetin has anti-Parkinson's activity against rotenone-induced PD in rats.
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Kan HL, Tung CW, Chang SE, Lin YC. In silico prediction of parkinsonian motor deficits-related neurotoxicants based on the adverse outcome pathway concept. Arch Toxicol 2022; 96:3305-3314. [PMID: 36175685 DOI: 10.1007/s00204-022-03376-1] [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: 06/22/2022] [Accepted: 09/07/2022] [Indexed: 11/02/2022]
Abstract
Exposure to neurotoxicants has been associated with Parkinson's disease (PD). Limited by the clinical variation in the signs and symptoms as well as the slow disease progression, the identification of parkinsonian neurotoxicants relies on animal models. Here, we propose an innovative in silico model for the prediction of parkinsonian neurotoxicants. The model was designed based on a validated adverse outcome pathway (AOP) for parkinsonian motor deficits initiated from the inhibition of mitochondrial complex I. The model consists of a molecular docking model for mitochondrial complex I protein to predict the molecular initiating event and a neuronal cytotoxicity Quantitative Structure-Activity Relationships (QSAR) model to predict the cellular outcome of the AOP. Four known PD-related complex I inhibitors and four non-neurotoxic chemicals were utilized to develop the threshold of the models and to validate the model, respectively. The integrated model showed 100% specificity in ruling out the non-neurotoxic chemicals. The screening of 41 neurotoxicants and complex I inhibitors with the model resulted in 16 chemicals predicted to induce parkinsonian disorder through the molecular initiating event of mitochondrial complex I inhibition. Five of them, namely cyhalothrin, deguelin, deltamethrin, diazepam, and permethrin, are cases with direct evidence linking them to parkinsonian motor deficit-related signs and symptoms. The neurotoxicant prediction model for parkinsonian motor deficits based on the AOP concept may be useful in prioritizing chemicals for further evaluations on PD potential.
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Affiliation(s)
- Hung-Lin Kan
- Doctoral Degree Program in Toxicology, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Chun-Wei Tung
- Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Miaoli County, 35053, Taiwan.
| | - Shao-En Chang
- Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Miaoli County, 35053, Taiwan
| | - Ying-Chi Lin
- Doctoral Degree Program in Toxicology, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 807, Taiwan. .,School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
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Liu CZ, Guo DS, Ma JJ, Dong LR, Chang QQ, Yang HQ, Liang KK, Li XH, Yang DW, Fan YY, Gu Q, Chen SY, Li DS. Correlation of matrix metalloproteinase 3 and matrix metalloproteinase 9 levels with non-motor symptoms in patients with Parkinson’s disease. Front Aging Neurosci 2022; 14:889257. [PMID: 36072482 PMCID: PMC9444063 DOI: 10.3389/fnagi.2022.889257] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 08/01/2022] [Indexed: 11/13/2022] Open
Abstract
Objective Matrix metalloproteinases (MMPs) are essential for tissue formation, neuronal network remodeling, and blood–brain barrier integrity. MMPs have been widely studied in acute brain diseases. However, the relationship with Parkinson’s disease (PD) remains unclear. The purpose of this study was to evaluate the serum MMP3 and MMP9 levels of PD patients and analyze their correlation with non-motor symptoms. Methods In this cross-sectional study, we recruited 73 patients with idiopathic PD and 64 healthy volunteers. Serum MMP3 and MMP9 levels were measured by enzyme-linked immunosorbent assay (ELISA). Patients with PD were assessed for non-motor symptoms using the Non-motor Symptoms Scale (NMSS) and Parkinson’s disease sleep scale (PDSS) and Mini Mental State Examination (MMSE). Results Serum MMP3 levels were significantly decreased in PD patients, predominantly those with early-stage PD, compared with controls [12.56 (9.30, 17.44) vs. 15.37 (11.33, 24.41) ng/ml; P = 0.004], and the serum MMP9 levels of PD patients were significantly higher than those of healthy controls [522 (419, 729) vs. 329 (229, 473) ng/ml; P < 0.001]. MMP3 levels were positively correlated with the NMSS total score (r = 0.271, P = 0.020) and the single-item scores for item six, assessing the gastrointestinal tract (r = 0.333, P = 0.004), and there was an inverse correlation between serum MMP3 levels and PDSS score (r = –0.246, P = 0.036); meanwhile, MMP9 levels were positively correlated with the NMSS total score (r = 0.234, P = 0.047), and higher serum MMP9 levels were detected in the cognitive dysfunction subgroup than in the cognitively intact subgroup [658 (504, 877) vs. 502 (397, 608) ng/ml, P = 0.008]. Conclusion The serum MMP3 level of PD patients (especially early-stage patients) was significantly lower than that of the healthy control group, and the MMP9 level was significantly higher than that of the healthy control group. MMP3 and MMP9 levels correlate with sleep disturbance and cognitive function in PD patients, respectively.
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Affiliation(s)
- Chuan Ze Liu
- Department of Neurology, Henan University People’s Hospital, Zhengzhou, China
- Department of Neurology, Henan Provincial People’s Hospital, Zhengzhou, China
| | - Da Shuai Guo
- Department of Neurology, Henan University People’s Hospital, Zhengzhou, China
- Department of Neurology, Henan Provincial People’s Hospital, Zhengzhou, China
| | - Jian Jun Ma
- Department of Neurology, Henan University People’s Hospital, Zhengzhou, China
- Department of Neurology, Henan Provincial People’s Hospital, Zhengzhou, China
- Department of Neurology, Zhengzhou University People’s Hospital, Zhengzhou, China
- *Correspondence: Jian Jun Ma,
| | - Lin Rui Dong
- Department of Neurology, Henan University People’s Hospital, Zhengzhou, China
- Department of Neurology, Zhengzhou University People’s Hospital, Zhengzhou, China
| | - Qing Qing Chang
- Department of Neurology, Henan University People’s Hospital, Zhengzhou, China
- Department of Neurology, Zhengzhou University People’s Hospital, Zhengzhou, China
| | - Hong Qi Yang
- Department of Neurology, Henan University People’s Hospital, Zhengzhou, China
- Department of Neurology, Henan Provincial People’s Hospital, Zhengzhou, China
- Department of Neurology, Zhengzhou University People’s Hospital, Zhengzhou, China
| | - Ke Ke Liang
- Department of Neurology, Henan University People’s Hospital, Zhengzhou, China
- Department of Neurology, Henan Provincial People’s Hospital, Zhengzhou, China
| | - Xiao Huan Li
- Department of Neurology, Henan University People’s Hospital, Zhengzhou, China
- Department of Neurology, Zhengzhou University People’s Hospital, Zhengzhou, China
| | - Da Wei Yang
- Department of Neurology, Henan University People’s Hospital, Zhengzhou, China
- Department of Neurology, Zhengzhou University People’s Hospital, Zhengzhou, China
| | - Yong Yan Fan
- Department of Neurology, Henan University People’s Hospital, Zhengzhou, China
- Department of Neurology, Zhengzhou University People’s Hospital, Zhengzhou, China
| | - Qi Gu
- Department of Neurology, Henan University People’s Hospital, Zhengzhou, China
- Department of Neurology, Henan Provincial People’s Hospital, Zhengzhou, China
- Department of Neurology, Zhengzhou University People’s Hospital, Zhengzhou, China
| | - Si Yuan Chen
- Department of Neurology, Henan University People’s Hospital, Zhengzhou, China
- Department of Neurology, Henan Provincial People’s Hospital, Zhengzhou, China
- Department of Neurology, Zhengzhou University People’s Hospital, Zhengzhou, China
| | - Dong Sheng Li
- Department of Neurology, Henan University People’s Hospital, Zhengzhou, China
- Department of Neurology, Henan Provincial People’s Hospital, Zhengzhou, China
- Department of Neurology, Zhengzhou University People’s Hospital, Zhengzhou, China
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New Targets and New Technologies in the Treatment of Parkinson’s Disease: A Narrative Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19148799. [PMID: 35886651 PMCID: PMC9321220 DOI: 10.3390/ijerph19148799] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 07/16/2022] [Accepted: 07/18/2022] [Indexed: 02/06/2023]
Abstract
Parkinson’s disease (PD) is a progressive neurodegenerative disease, whose main neuropathological finding is pars compacta degeneration due to the accumulation of Lewy bodies and Lewy neurites, and subsequent dopamine depletion. This leads to an increase in the activity of the subthalamic nucleus (STN) and the internal globus pallidus (GPi). Understanding functional anatomy is the key to understanding and developing new targets and new technologies that could potentially improve motor and non-motor symptoms in PD. Currently, the classical targets are insufficient to improve the entire wide spectrum of symptoms in PD (especially non-dopaminergic ones) and none are free of the side effects which are not only associated with the procedure, but with the targets themselves. The objective of this narrative review is to show new targets in DBS surgery as well as new technologies that are under study and have shown promising results to date. The aim is to give an overview of these new targets, as well as their limitations, and describe the current studies in this research field in order to review ongoing research that will probably become effective and routine treatments for PD in the near future.
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Fagan RR, Kearney PJ, Luethi D, Bolden NC, Sitte HH, Emery P, Melikian HE. Dopaminergic Ric GTPase activity impacts amphetamine sensitivity and sleep quality in a dopamine transporter-dependent manner in Drosophila melanogaster. Mol Psychiatry 2021; 26:7793-7802. [PMID: 34471250 PMCID: PMC8881384 DOI: 10.1038/s41380-021-01275-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 07/28/2021] [Accepted: 08/20/2021] [Indexed: 02/07/2023]
Abstract
Dopamine (DA) is required for movement, sleep, and reward, and DA signaling is tightly controlled by the presynaptic DA transporter (DAT). Therapeutic and addictive psychostimulants, including methylphenidate (Ritalin; MPH), cocaine, and amphetamine (AMPH), markedly elevate extracellular DA via their actions as competitive DAT inhibitors (MPH, cocaine) and substrates (AMPH). DAT silencing in mice and invertebrates results in hyperactivity, reduced sleep, and blunted psychostimulant responses, highlighting DAT's essential role in DA-dependent behaviors. DAT surface expression is not static; rather it is dynamically regulated by endocytic trafficking. PKC-stimulated DAT endocytosis requires the neuronal GTPase, Rit2, and Rit2 silencing in mouse DA neurons impacts psychostimulant sensitivity. However, it is unknown whether or not Rit2-mediated changes in psychostimulant sensitivity are DAT-dependent. Here, we leveraged Drosophila melanogaster to test whether the Drosophila Rit2 ortholog, Ric, impacts dDAT function, trafficking, and DA-dependent behaviors. Orthologous to hDAT and Rit2, dDAT and Ric directly interact, and the constitutively active Ric mutant Q117L increased dDAT surface levels and function in cell lines and ex vivo Drosophila brains. Moreover, DAergic RicQ117L expression caused sleep fragmentation in a DAT-dependent manner but had no effect on total sleep and daily locomotor activity. Importantly, we found that Rit2 is required for AMPH-stimulated DAT internalization in mouse striatum, and that DAergic RicQ117L expression significantly increased Drosophila AMPH sensitivity in a DAT-dependent manner, suggesting a conserved impact of Ric-dependent DAT trafficking on AMPH sensitivity. These studies support that the DAT/Rit2 interaction impacts both baseline behaviors and AMPH sensitivity, potentially by regulating DAT trafficking.
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Affiliation(s)
- Rita R. Fagan
- Brudnick Neuropsychiatric Research Institute, Department of Neurobiology, UMASS Medical School, Worcester, MA
| | - Patrick J. Kearney
- Brudnick Neuropsychiatric Research Institute, Department of Neurobiology, UMASS Medical School, Worcester, MA
| | - Dino Luethi
- Medical University Vienna, Center for Physiology and Pharmacology, Institute of Pharmacology, Vienna, Austria, A-1090
| | - Nicholas C. Bolden
- Brudnick Neuropsychiatric Research Institute, Department of Neurobiology, UMASS Medical School, Worcester, MA
| | - Harald H. Sitte
- Medical University Vienna, Center for Physiology and Pharmacology, Institute of Pharmacology, Vienna, Austria, A-1090
| | - Patrick Emery
- Department of Neurobiology, UMASS Medical School, Worcester, MA
| | - Haley E. Melikian
- Brudnick Neuropsychiatric Research Institute, Department of Neurobiology, UMASS Medical School, Worcester, MA,Address correspondence to: Haley Melikian, Ph.D., Department of Neurobiology, UMASS Medical School, LRB 726, 364 Plantation St., Worcester, MA 01605, 774-455-4308 (phone), 508-856-6266 (fax),
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Development and validation of an instrument for measuring parkinsonian motor impairment: TRAPS-D. Neurol Sci 2021; 43:2519-2524. [PMID: 34709480 DOI: 10.1007/s10072-021-05533-3] [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: 04/09/2021] [Accepted: 08/04/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Parkinson's disease is incurable, idiopathic, degenerative, and progressive, and affects about 1% of the elderly population. Multidisciplinary clinical treatment is the best and most adopted therapeutic option, while surgical treatment is used in less than 15% of those affected. In practice, there is a lack of reliable and validated scales for measuring motor impairment, and monitoring and screening for surgical indications. OBJECTIVE To develop and validate an instrument for measuring parkinsonian motor impairment in candidates for neurosurgical treatment. METHOD The development and validation methods followed published guidelines. The first part was the choice of domains that would make up the construct: cardinal signs of disease (tremor, rigidity (stiffness), posture/balance/gait, hypokinesia/akinesia, and speech), along with pain and dyskinesia. A multi-professional working group prepared an initial pilot instrument. Ten renowned specialists evaluated, judged, and suggested modifications to the instrument. The second phase was the evaluation of the content of each domain and the respective ability to classify commitment intensity. The third phase was the correction of the main flaws detected and new submission to the board. The instrument was applied to 41 candidates for neurosurgical treatment in two situations: with and without medication RESULTS: The final form received 100% agreement from the judges. Its average time for application was 8 min. It was very responsive (p = 0.001, Wilcoxon) in different situations (On-Off). CONCLUSION TRASP-D is a valid instrument for measuring motor impairment in patients with Parkinson's disease who are candidates for neurosurgical treatment. It allows measurement in multiple domains with reliability and sensitivity.
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Kumar S, Kumar P. The Beneficial Effect of Rice Bran Extract Against Rotenone-Induced Experimental Parkinson's Disease in Rats. Curr Mol Pharmacol 2021; 14:428-438. [PMID: 33573588 DOI: 10.2174/1874467214666210126113324] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 10/15/2020] [Accepted: 11/02/2020] [Indexed: 01/09/2023]
Abstract
BACKGROUND Neurodegenerative diseases have become an increasing cause of various disabilities worldwide, followed by aging, including Parkinson's disease (PD). Parkinson's disease is a degenerative brain disorder distinguished by growing motor & non-motor failure due to the degeneration of medium-sized spiked neurons in the striatum region. Rotenone is often employed to originate the animal model of PD. It is a powerful blocker of mitochondrial complex-I, mitochondrial electron transport chain that reliably produces Parkinsonism-like symptoms in rats. Rice bran (RB) is very rich in polyunsaturated fatty acids (PUFA) and nutritionally beneficial compounds, such as γ-oryzanol, tocopherols, and tocotrienols and sterols are believed to have favorable outcomes on oxidative stress & mitochondrial function. OBJECTIVE The present study has been designed to explore RB extract's effect against rotenone-induced neurotoxicity in rats. METHODS In the present study, Rotenone (2 mg/kg, s.c) was administered systemically for 28 days. The hexane extract of RB was prepared using Soxhlation. Hexane extract (250 & 500 mg/kg) was administered per oral for 28 days in rotenone-treated groups. Behavioral parameters (grip strength, motor coordination, locomotion, and catalepsy) were conducted on the 7th, 14th, 21st, and 28th day. Animals were sacrificed on the 29th day for biochemical estimation in the striatum and cortex. RESULTS This study demonstrates significant alteration in behavioral parameters, oxidative burden (increased lipid peroxidation, nitrite concentration, and decreased glutathione, catalase, SOD) in rotenone-treated animals. Administration of hexane extract of RB prevented the behavioral, biochemical alterations induced by rotenone. The current research has been sketched to inspect RB extract's effect against rotenone-developed neurotoxicity in rats. CONCLUSION The findings support that PD is associated with impairments in motor activity. The results also suggest that the nutraceutical rice bran that contains γ-oryzanol, Vitamin-E, ferulic acid etc., may underlie the adjuvant susceptibility towards rotenone-induced PD in experimental rats.
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Affiliation(s)
- Sachin Kumar
- Department of Pharmaceutical Sciences & Technology, Maharaja Ranjit Singh Punjab Technical University, Bathinda, Punjab, India
| | - Puneet Kumar
- Department of Pharmaceutical Sciences & Technology, Maharaja Ranjit Singh Punjab Technical University, Bathinda, Punjab, India
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Mao Z, Wen-Ting Z, Hai-Tao W, Hui Y, Shi-Yi L, Jiang-Ping X, Wen-Ya W. AMI, an Indazole Derivative, Improves Parkinson's Disease by Inhibiting Tau Phosphorylation. Front Mol Neurosci 2020; 13:165. [PMID: 33328879 PMCID: PMC7710523 DOI: 10.3389/fnmol.2020.00165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 08/11/2020] [Indexed: 11/17/2022] Open
Abstract
Dopaminergic neuronal loss is the main pathological character of Parkinson’s disease (PD). Abnormal tau hyperphosphorylation will lead to dopaminergic neuronal loss. An indazole derivative 6-amino-1-methyl-indazole (AMI) successfully synthesized to inhibit tau hyperphosphorylation may exert a neuroprotective effect. The in vitro study showed that AMI effectively increased cell viability and alleviated the apoptosis induced by MPP+ in SH-SY5Y cells. In addition, AMI treatment significantly decreased the expression of p-tau and upstream kinases GSK-3β. In the MPTP-induced PD mice models, we found AMI apparently preserved dopaminergic neurons in the substantia nigra and improved the PD behavioral symptoms. Our results demonstrate that AMI exerts a neuroprotective effect by inhibiting tau hyperphosphorylation, representing a promising new candidate for PD treatment.
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Affiliation(s)
- Zhang Mao
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Zhu Wen-Ting
- The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Wang Hai-Tao
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Yu Hui
- School of Basic Medical Science, Southern Medical University, Guangzhou, China
| | - Lan Shi-Yi
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Xu Jiang-Ping
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Wang Wen-Ya
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
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Henrich MT, Geibl FF, Lakshminarasimhan H, Stegmann A, Giasson BI, Mao X, Dawson VL, Dawson TM, Oertel WH, Surmeier DJ. Determinants of seeding and spreading of α-synuclein pathology in the brain. SCIENCE ADVANCES 2020; 6:eabc2487. [PMID: 33177086 PMCID: PMC7673735 DOI: 10.1126/sciadv.abc2487] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 09/22/2020] [Indexed: 05/22/2023]
Abstract
In Parkinson's disease (PD), fibrillar forms of α-synuclein are hypothesized to propagate through synaptically coupled networks, causing Lewy pathology (LP) and neurodegeneration. To more rigorously characterize the determinants of spreading, preformed α-synuclein fibrils were injected into the mouse pedunculopontine nucleus (PPN), a brain region that manifests LP in PD patients and the distribution of developing α-synuclein pathology compared to that ascertained by anterograde and retrograde connectomic mapping. Within the PPN, α-synuclein pathology was cell-specific, being robust in PD-vulnerable cholinergic neurons but not in neighboring noncholinergic neurons. While nearly all neurons projecting to PPN cholinergics manifested α-synuclein pathology, the kinetics, magnitude, and persistence of the propagated pathology were unrelated to the strength of those connections. Thus, neuronal phenotype governs the somatodendritic uptake of pathological α-synuclein, and while the afferent connectome restricts the subsequent spreading of pathology, its magnitude and persistence is not a strict function of the strength of coupling.
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Affiliation(s)
- Martin T Henrich
- Department of Physiology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Department of Neurology, Philipps University Marburg, Marburg 35043, Germany
| | - Fanni F Geibl
- Department of Neurology, Philipps University Marburg, Marburg 35043, Germany
| | - Harini Lakshminarasimhan
- Department of Physiology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Anna Stegmann
- Department of Neurology, Philipps University Marburg, Marburg 35043, Germany
| | - Benoit I Giasson
- Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease, McKnight Brain Institute, University of Florida, Gainesville, FL 32610, USA
| | - Xiaobo Mao
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Valina L Dawson
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Physiology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Ted M Dawson
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - Wolfgang H Oertel
- Department of Neurology, Philipps University Marburg, Marburg 35043, Germany
| | - D James Surmeier
- Department of Physiology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
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Fagan RR, Kearney PJ, Sweeney CG, Luethi D, Schoot Uiterkamp FE, Schicker K, Alejandro BS, O'Connor LC, Sitte HH, Melikian HE. Dopamine transporter trafficking and Rit2 GTPase: Mechanism of action and in vivo impact. J Biol Chem 2020; 295:5229-5244. [PMID: 32132171 PMCID: PMC7170531 DOI: 10.1074/jbc.ra120.012628] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 02/20/2020] [Indexed: 12/20/2022] Open
Abstract
Following its evoked release, dopamine (DA) signaling is rapidly terminated by presynaptic reuptake, mediated by the cocaine-sensitive DA transporter (DAT). DAT surface availability is dynamically regulated by endocytic trafficking, and direct protein kinase C (PKC) activation acutely diminishes DAT surface expression by accelerating DAT internalization. Previous cell line studies demonstrated that PKC-stimulated DAT endocytosis requires both Ack1 inactivation, which releases a DAT-specific endocytic brake, and the neuronal GTPase, Rit2, which binds DAT. However, it is unknown whether Rit2 is required for PKC-stimulated DAT endocytosis in DAergic terminals or whether there are region- and/or sex-dependent differences in PKC-stimulated DAT trafficking. Moreover, the mechanisms by which Rit2 controls PKC-stimulated DAT endocytosis are unknown. Here, we directly examined these important questions. Ex vivo studies revealed that PKC activation acutely decreased DAT surface expression selectively in ventral, but not dorsal, striatum. AAV-mediated, conditional Rit2 knockdown in DAergic neurons impacted baseline DAT surface:intracellular distribution in DAergic terminals from female ventral, but not dorsal, striatum. Further, Rit2 was required for PKC-stimulated DAT internalization in both male and female ventral striatum. FRET and surface pulldown studies in cell lines revealed that PKC activation drives DAT-Rit2 surface dissociation and that the DAT N terminus is required for both PKC-mediated DAT-Rit2 dissociation and DAT internalization. Finally, we found that Rit2 and Ack1 independently converge on DAT to facilitate PKC-stimulated DAT endocytosis. Together, our data provide greater insight into mechanisms that mediate PKC-regulated DAT internalization and reveal unexpected region-specific differences in PKC-stimulated DAT trafficking in bona fide DAergic terminals.
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Affiliation(s)
- Rita R Fagan
- Brudnick Neuropsychiatric Research Institute, Department of Neurobiology, University of Massachusetts Medical School, Worcester, Massachusetts 01605
| | - Patrick J Kearney
- Brudnick Neuropsychiatric Research Institute, Department of Neurobiology, University of Massachusetts Medical School, Worcester, Massachusetts 01605
| | - Carolyn G Sweeney
- Brudnick Neuropsychiatric Research Institute, Department of Neurobiology, University of Massachusetts Medical School, Worcester, Massachusetts 01605
| | - Dino Luethi
- Institute of Pharmacology, Center for Physiology and Pharmacology, Medical University Vienna, Vienna A-1090, Austria
| | - Florianne E Schoot Uiterkamp
- Institute of Pharmacology, Center for Physiology and Pharmacology, Medical University Vienna, Vienna A-1090, Austria
| | - Klaus Schicker
- Institute of Pharmacology, Center for Physiology and Pharmacology, Medical University Vienna, Vienna A-1090, Austria
| | - Brian S Alejandro
- Brudnick Neuropsychiatric Research Institute, Department of Neurobiology, University of Massachusetts Medical School, Worcester, Massachusetts 01605
| | - Lauren C O'Connor
- Brudnick Neuropsychiatric Research Institute, Department of Neurobiology, University of Massachusetts Medical School, Worcester, Massachusetts 01605
| | - Harald H Sitte
- Institute of Pharmacology, Center for Physiology and Pharmacology, Medical University Vienna, Vienna A-1090, Austria
| | - Haley E Melikian
- Brudnick Neuropsychiatric Research Institute, Department of Neurobiology, University of Massachusetts Medical School, Worcester, Massachusetts 01605.
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Naringin Exhibits Neuroprotection Against Rotenone-Induced Neurotoxicity in Experimental Rodents. Neuromolecular Med 2020; 22:314-330. [PMID: 31916219 DOI: 10.1007/s12017-019-08590-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Accepted: 12/28/2019] [Indexed: 02/07/2023]
Abstract
Parkinson's disease (PD) is a neurodegenerative disease that is accompanied with the loss of dopaminergic neurons in the substantia nigra pars compacta which subsequently leads to a reduction in the dopamine level in the striatum. The flavonoids are gaining critical attention in the management of PD due to the toxic effects of the synthetic drugs. Naringin, a potent flavonoid, exerts neuroprotective activity against experimental animal models of PD. It also exhibits protective activity against rotenone-induced neurotoxicity in cell line studies. Therefore, the present study was designed to evaluate the therapeutic potential of naringin against rotenone-induced animal model of PD. The rotenone was injected through intracerebroventricular route into substantia nigra pars compacta (SNpc) to induce PD-like manifestations in the male rats. The behavioral deficits of the animals due to dopaminergic toxicity were evaluated in actophotometer, OFT, bar catalepsy, narrow beam walk, rota-rod, grip strength and foot print analysis. Naringin-attenuated rotenone-induced behavioral abnormalities in the experimental rats. Further, naringin reduced the rotenone-induced dopaminergic toxicity in striatum and SNpc the animals. At the sub-cellular level, naringin attenuated the rotenone-induced decrease in the mitochondrial function, integrity and bioenergetics in the SNpc of the animals. Furthermore, naringin reduced the rotenone-induced mitochondria-dependent apoptosis in the rat SNpc. However, Trigonelline significantly abolished the therapeutic effects of naringin on behavioral, biochemical and molecular observations in rotenone-induced PD-like animals. These observations indicate that naringin may exert neuroprotective activity against rotenone-induced toxicity in the animals possibly through Nrf2-mediated pathway. Thus, it can be presumed that naringin could be an alternative option in the management of PD.
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Li S, Liu J, Li G, Zhang X, Xu F, Fu Z, Teng L, Li Y, Sun F. Near-infrared light-responsive, pramipexole-loaded biodegradable PLGA microspheres for therapeutic use in Parkinson's disease. Eur J Pharm Biopharm 2019; 141:1-11. [DOI: 10.1016/j.ejpb.2019.05.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 05/04/2019] [Accepted: 05/14/2019] [Indexed: 01/11/2023]
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Jellinger KA. Neuropathology and pathogenesis of extrapyramidal movement disorders: a critical update-I. Hypokinetic-rigid movement disorders. J Neural Transm (Vienna) 2019; 126:933-995. [PMID: 31214855 DOI: 10.1007/s00702-019-02028-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 06/05/2019] [Indexed: 02/06/2023]
Abstract
Extrapyramidal movement disorders include hypokinetic rigid and hyperkinetic or mixed forms, most of them originating from dysfunction of the basal ganglia (BG) and their information circuits. The functional anatomy of the BG, the cortico-BG-thalamocortical, and BG-cerebellar circuit connections are briefly reviewed. Pathophysiologic classification of extrapyramidal movement disorder mechanisms distinguish (1) parkinsonian syndromes, (2) chorea and related syndromes, (3) dystonias, (4) myoclonic syndromes, (5) ballism, (6) tics, and (7) tremor syndromes. Recent genetic and molecular-biologic classifications distinguish (1) synucleinopathies (Parkinson's disease, dementia with Lewy bodies, Parkinson's disease-dementia, and multiple system atrophy); (2) tauopathies (progressive supranuclear palsy, corticobasal degeneration, FTLD-17; Guamian Parkinson-dementia; Pick's disease, and others); (3) polyglutamine disorders (Huntington's disease and related disorders); (4) pantothenate kinase-associated neurodegeneration; (5) Wilson's disease; and (6) other hereditary neurodegenerations without hitherto detected genetic or specific markers. The diversity of phenotypes is related to the deposition of pathologic proteins in distinct cell populations, causing neurodegeneration due to genetic and environmental factors, but there is frequent overlap between various disorders. Their etiopathogenesis is still poorly understood, but is suggested to result from an interaction between genetic and environmental factors. Multiple etiologies and noxious factors (protein mishandling, mitochondrial dysfunction, oxidative stress, excitotoxicity, energy failure, and chronic neuroinflammation) are more likely than a single factor. Current clinical consensus criteria have increased the diagnostic accuracy of most neurodegenerative movement disorders, but for their definite diagnosis, histopathological confirmation is required. We present a timely overview of the neuropathology and pathogenesis of the major extrapyramidal movement disorders in two parts, the first one dedicated to hypokinetic-rigid forms and the second to hyperkinetic disorders.
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Affiliation(s)
- Kurt A Jellinger
- Institute of Clinical Neurobiology, Alberichgasse 5/13, 1150, Vienna, Austria.
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