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https://www.readbyqxmd.com/read/29667931/ave0991-a-nonpeptide-analogue-of-ang-1-7-attenuates-aging-related-neuroinflammation
#1
Teng Jiang, Liu-Jun Xue, Yang Yang, Qing-Guang Wang, Xiao Xue, Zhou Ou, Qing Gao, Jian-Quan Shi, Liang Wu, Ying-Dong Zhang
During the aging process, chronic neuroinflammation induced by microglia is detrimental for the brain and contributes to the etiology of several aging-related neurodegenerative diseases such as Alzheimer's disease and Parkinson's disease. As a newly identified axis of renin-angiotensin system, ACE2/Ang-(1-7)/MAS1 axis plays a crucial role in modulating inflammatory responses under various pathological conditions. However, its relationship with aging-related neuroinflammation is less studied so far. In this study, by using SAMP8 mice, an animal model of accelerated aging, we revealed that the neuroinflammation in the aged brain might be attributed to a decreased level of Ang-(1-7)...
April 17, 2018: Aging
https://www.readbyqxmd.com/read/29667667/%C3%AE-cyperone-inhibits-lps-induced-inflammation-in-bv-2-cells-through-activation-of-akt-nrf2-ho-1-and-suppression-of-the-nf-%C3%AE%C2%BAb-pathway
#2
Bingxu Huang, Dewei He, Guangxin Chen, Xin Ran, Wenjin Guo, Xingchi Kan, Wei Wang, Dianfeng Liu, Shoupeng Fu, Juxiong Liu
Accumulating evidence has shown that activated microglia cause inflammatory immune response, which could lead to neurodegenerative diseases such as Parkinson's disease and Alzheimer's disease. α-Cyperone, one of the main ingredients of Cyperus rotundus oil, has been reported to possess anti-inflammatory activity in activated macrophages. In this study, we found that α-cyperone markedly decreased the production of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and interleukin-1β (IL-1β) in LPS-induced BV-2 cells...
April 18, 2018: Food & Function
https://www.readbyqxmd.com/read/29667433/association-between-physical-fitness-cardiovascular-risk-factors-and-parkinson-s-disease
#3
Jan Müller, Jonathan Myers
Objective Exercise is a cornerstone of therapy for Parkinson's disease. This study addressed the association between physical fitness and the onset of Parkinson's disease and association with cardiovascular risk factors. Patients and methods Male veterans ( N = 7347, 59.0 ± 11.2 years) from the Veterans Exercise Testing Study cohort were evaluated. Physical fitness was measured objectively by maximal exercise testing. Onset of Parkinson's disease was abstracted from the Veterans Affairs computerized patient records system...
January 1, 2018: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/29667128/epigallocatechin-3-gallate-protects-and-prevents-paraquat-induced-oxidative-stress-and-neurodegeneration-in-knockdown-dj-1-%C3%AE-drosophila-melanogaster
#4
Daniel A Martinez-Perez, Marlene Jimenez-Del-Rio, Carlos Velez-Pardo
Epigallocatechin-3-gallate (EGCG) is a polyhydroxyphenol constituent of green tea (e.g., Camellia sinensis) with known antioxidant properties. Due to these properties, others have proposed it as a potential therapeutic agent for the treatment of Parkinson's disease (PD). Previously, we demonstrated that EGCG prolonged the lifespan and locomotor activity in wild-type Canton-S flies exposed to the neurotoxicant paraquat (PQ), suggesting neuroprotective properties. Both gene mutations and environmental neurotoxicants (e...
April 17, 2018: Neurotoxicity Research
https://www.readbyqxmd.com/read/29666786/modeling-neuropsychiatric-and-neurodegenerative-diseases-with-induced-pluripotent-stem-cells
#5
REVIEW
Elizabeth A LaMarca, Samuel K Powell, Schahram Akbarian, Kristen J Brennand
Human-induced pluripotent stem cells (hiPSCs) have revolutionized our ability to model neuropsychiatric and neurodegenerative diseases, and recent progress in the field is paving the way for improved therapeutics. In this review, we discuss major advances in generating hiPSC-derived neural cells and cutting-edge techniques that are transforming hiPSC technology, such as three-dimensional "mini-brains" and clustered, regularly interspersed short palindromic repeats (CRISPR)-Cas systems. We examine specific examples of how hiPSC-derived neural cells are being used to uncover the pathophysiology of schizophrenia and Parkinson's disease, and consider the future of this groundbreaking research...
2018: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/29666730/levodopa-responsive-early-onset-parkinsonism-in-down-syndrome
#6
Padmini Palat, Francis Hickey, Lina Patel, Elise Sannar
Individuals with Down syndrome (DS) can develop Alzheimer's disease as early as 30 to 40 years old, but parkinsonism is rarely described. We report on a 20-year-old woman with Down syndrome and parkinsonism who responded dramatically to carbidopa-levodopa. We propose that the occurrence of parkinsonism in individuals with DS may be underreported. Recognizing and treating this condition may improve quality of life.
2018: Case Reports in Neurological Medicine
https://www.readbyqxmd.com/read/29666431/crohn-s-and-parkinson-disease-is-lrrk2-lurking-around-the-corner
#7
Pascal Derkinderen, Michel Neunlist
No abstract text is available yet for this article.
April 17, 2018: Nature Reviews. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29666208/insights-into-parkinson-s-disease-from-computational-models-of-the-basal-ganglia
#8
REVIEW
Mark D Humphries, Jose Angel Obeso, Jakob Kisbye Dreyer
Movement disorders arise from the complex interplay of multiple changes to neural circuits. Successful treatments for these disorders could interact with these complex changes in myriad ways, and as a consequence their mechanisms of action and their amelioration of symptoms are incompletely understood. Using Parkinson's disease as a case study, we review here how computational models are a crucial tool for taming this complexity, across causative mechanisms, consequent neural dynamics and treatments. For mechanisms, we review models that capture the effects of losing dopamine on basal ganglia function; for dynamics, we discuss models that have transformed our understanding of how beta-band (15-30 Hz) oscillations arise in the parkinsonian basal ganglia...
April 17, 2018: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/29666148/single-mild-concussion-increases-risk-of-parkinson-s-disease-study-suggests
#9
Ingrid Torjesen
No abstract text is available yet for this article.
April 17, 2018: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/29665982/oscillatory-activity-and-cortical-coherence-of-the-nucleus-basalis-of-meynert-in-parkinson-s-disease-dementia
#10
Muhammad Nazmuddin, D L Marinus Oterdoom, J Marc C van Dijk, Jonathan C van Zijl, Anne K Kampman, Gea Drost, Teus van Laar, Martijn Beudel
BACKGROUND: Deep brain stimulation (DBS) of the nucleus basalis of Meynert (NBM) is a new potential treatment for Parkinson's Disease dementia (PDD) and other types of dementia. To get a better understanding of this structure, its local neurophysiological properties and cortical connectivity patterns were studied. METHODS: We simultaneously recorded DBS local field potentials (LFPs) and electroencephalography (EEG) in two patients with PDD. Both patients had DBS electrodes in the internal globus pallidus (GPi) with one or more distal contacts close to or inside the NBM...
March 28, 2018: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29665760/nintendo-wii%C3%A2-versus-xbox-kinect%C3%A2-for-assisting-people-with-parkinson-s-disease
#11
Melissa L M Alves, Beatriz S Mesquita, Wenderson S Morais, Josevan C Leal, Corina E Satler, Felipe A Dos Santos Mendes
This study investigated changes in motor and cognitive skills, anxiety levels, and quality of life perception among patients with Parkinson's Disease (PD) following training with different commercial gaming devices-Nintendo Wii™ and Xbox Kinect™. We used a quasi-experimental, simple blinded clinical trial, dividing 27 patients with PD into three equal groups of nine members: (a) Nintendo Wii™, (b) Xbox Kinect™, and (c) control group. After pretests, experimental group participants spent 10 sessions playing four games of the selected gaming device, while control group participants received no intervention...
January 1, 2018: Perceptual and Motor Skills
https://www.readbyqxmd.com/read/29665491/methamphetamine-use-and-future-risk-for-parkinson-s-disease-evidence-and-clinical-implications
#12
REVIEW
Julia M Lappin, Shane Darke, Michael Farrell
BACKGROUND: Methamphetamine use has been posited to be a risk factor for the development of Parkinson's disease (PD) and parkinsonism. The clinical implications of a potential association between methamphetamine use and PD are considered. METHODS: A review of methamphetamine and PD and parkinsonism was conducted, including evidence from animal models, clinical and population studies. RESULTS: There is biological plausibility to a link between methamphetamine use and PD...
April 10, 2018: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/29665408/neuroprotective-effect-of-angiotensin-1-7-against-rotenone-induced-oxidative-damage-in-cath-a-neurons
#13
Yong Zhou, Min Li, Dong-Lin Zhu, Teng Jiang, Qing Gao, Xiao-Hong Tang, Shu-Gang Zhang, Jie Lu, Ying-Dong Zhang
There is evidence to support that ROSs are increased in Parkinson's disease (PD). Our recent research showed that angiotensin II (Ang II) participated in the pathogenesis of PD by triggering oxidative stress. Angiotensin-(1-7)[Ang-(1-7)] has been shown to moderate the adverse effects of the Ang II in many diseases. The purpose of the present study was to determine whether the Ang-(1-7) could have similar effects in CATH.a neurons. We used rotenone-induced neuron injury models to evaluate changes in cultured CATH...
April 14, 2018: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/29665395/label-free-colorimetric-sensor-for-sensitive-detection-of-choline-based-on-dnazyme-choline-oxidase-coupling
#14
Nasrin Nikzad, Zahra Karami
Changes in choline levels can be associated with diseases such as Alzheimer, Parkinson, Huntington, fatty liver, interstitial lung abnormalities, autism and so on. Therefore, quantitative determination of choline is important in biological and clinical analysis. So far, several methods have been investigated for measuring choline in the body fluids, each of which has disadvantages such as the need for specialist ability, complexity, and high cost. For this purpose, a facile and sensitive colorimetric biosensor based on DNAzyme-choline oxidase coupling used for the determination of choline...
April 14, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29665383/impact-of-aging-alzheimer-s-disease-and-parkinson-s-disease-on-the-blood-brain-barrier-transport-of-therapeutics
#15
Yijun Pan, Joseph A Nicolazzo
Older people are at greater risk of medicine-induced toxicities resulting from either increased drug sensitivity or age-related pharmacokinetic changes. The scenario is further complicated with the two most prevalent age-related neurodegenerative diseases, Alzheimer's disease (AD) and Parkinson's disease (PD). With aging, AD and PD, there is growing evidence of altered structure and function of the blood-brain barrier (BBB), including modifications to tight junctions and efflux transporters, such as P-glycoprotein...
April 14, 2018: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/29665124/how-does-dementia-with-lewy-bodies-start-prodromal-cognitive-changes-in-rem-sleep-behavior-disorder
#16
Daphné Génier Marchand, Ronald B Postuma, Frédérique Escudier, Jessie De Roy, Amélie Pelletier, Jacques Montplaisir, Jean-François Gagnon
Objective We describe the progression of cognitive decline and identify the predictive values of cognitive tests in three groups of REM sleep behavior disorder (RBD) patients classified at their last follow-up as having Parkinson's disease (PD), dementia with Lewy bodies (DLB), or still-idiopathic. Methods Patients (n=109) underwent polysomnographic, neurological, and neuropsychological assessments. We used linear mixed-model analyses to compare the progression of cognitive test performance between the three groups over a three-year prodromal period, and performed linear regressions for a six-year prodromal period...
April 17, 2018: Annals of Neurology
https://www.readbyqxmd.com/read/29665080/clustering-of-motor-and-nonmotor-traits-in-leucine-rich-repeat-kinase-2-g2019s-parkinson-s-disease-nonparkinsonian-relatives-a-multicenter-family-study
#17
Tiago A Mestre, Claustre Pont-Sunyer, Farah Kausar, Naomi P Visanji, Taneera Ghate, Barbara S Connolly, Carmen Gasca-Salas, Drew S Kern, Jennifer Jain, Elizabeth J Slow, Achinoam Faust-Socher, Meike Kasten, Pettarusp M Wadia, Cindy Zadikoff, Prakash Kumar, Ronald M de Bie, Teri Thomsen, Anthony E Lang, Birgitt Schüle, Christine Klein, Eduardo Tolosa, Connie Marras
OBJECTIVES: The objective of this study was to determine phenotypic features that differentiate nonparkinsonian first-degree relatives of PD leucine-rich repeat kinase 2 (LRRK2) G2019S multiplex families, regardless of carrier status, from healthy controls because nonparkinsonian individuals in multiplex families seem to share a propensity to present neurological features. METHODS: We included nonparkinsonian first-degree relatives of LRRK2 G2019S familial PD cases and unrelated healthy controls participating in established multiplex family LRRK2 cohorts...
April 17, 2018: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/29665074/parkin-deficiency-modulates-nlrp3-inflammasome-activation-by-attenuating-an-a20-dependent-negative-feedback-loop
#18
François Mouton-Liger, Thibault Rosazza, Julia Sepulveda-Diaz, Amélie Ieang, Sidi-Mohamed Hassoun, Emilie Claire, Graziella Mangone, Alexis Brice, Patrick P Michel, Jean-Christophe Corvol, Olga Corti
Neuroinflammation and mitochondrial dysfunction, key mechanisms in the pathogenesis of Parkinson's disease (PD), are usually explored independently. Loss-of-function mutations of PARK2 and PARK6, encoding the E3 ubiquitin protein ligase Parkin and the mitochondrial serine/threonine kinase PINK1, account for a large proportion of cases of autosomal recessive early-onset PD. PINK1 and Parkin regulate mitochondrial quality control and have been linked to the modulation of innate immunity pathways. We report here an exacerbation of NLRP3 inflammasome activation by specific inducers in microglia and bone marrow-derived macrophages from Park2-/- and Pink1-/- mice...
April 17, 2018: Glia
https://www.readbyqxmd.com/read/29665066/serotonin-beta-amyloid-and-cognition-in-parkinson-disease
#19
Vikas Kotagal, Cathie Spino, Nicolaas I Bohnen, Robert A Koeppe, Roger L Albin
OBJECTIVE: Serotoninergic neurotransmission may modulate beta-amyloid peptide (Aβ) metabolism through up-regulation of alpha-secretase. Early Parkinson disease (PD) shows variable serotoninergic denervation, which may impact Aβ deposition. METHODS: We conducted three analyses to explore associations between serotoninergic neurotransmission and cerebral Aβ burden in PD. The first was a cross-sectional imaging study of PD subjects (n=23) using the serotoninergic transporter positron emission tomography (PET) ligand [11 C]DASB and amyloid PET Pittsburgh compound B ([11 C]PiB)...
April 17, 2018: Annals of Neurology
https://www.readbyqxmd.com/read/29664151/the-receptor-for-advanced-glycation-endproducts-is-a-mediator-of-toxicity-by-iapp-and-other-proteotoxic-aggregates-establishing-and-exploiting-common-ground-for-novel-amyloidosis-therapies
#20
REVIEW
Andisheh Abedini, Julia Derk, Ann Marie Schmidt
Proteotoxicity plays a key role in many devastating human disorders, including Alzheimer's, Huntington's and Parkinson's diseases; type 2 diabetes; systemic amyloidosis; and cardiac dysfunction, to name a few. The cellular mechanisms of proteotoxicity in these disorders have been the focus of considerable research, but their role in prevalent and morbid disorders, such as diabetes, is less appreciated. There is a large body of literature on the impact of glucotoxicity and lipotoxicity on insulin-producing pancreatic β-cells, and there is increasing recognition that proteotoxicty plays a key role...
April 17, 2018: Protein Science: a Publication of the Protein Society
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