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Parkinsons prevention

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https://www.readbyqxmd.com/read/29145202/exploring-the-association-between-statin-use-and-the-risk-of-parkinson-s-disease-a-meta-analysis-of-observational-studies
#1
Tahmina Nasrin Poly, Md Mohaimenul Islam, Bruno Andreas Walther, Hsuan-Chia Yang, Phung-Anh Nguyen, Chih-Wei Huang, Syed-Abdul Shabbir, Yu-Chuan Jack Li
BACKGROUND: Parkinson's disease (PD) is a progressive disorder of the central nervous system. The prevalence of PD varies considerably by age group; it has a higher prevalence in patients aged 60 years and more. Several studies have shown that statin, a cholesterol-lowering medication, reduces the risk of developing PD, but evidence for this is so far inconclusive. The objective of this study is to evaluate the association between statin use and the risk of developing PD. METHODS: PubMed, EMBASE, and the bibliographies of articles were searched for studies published between January 1, 1990, and January 1, 2017, which reported on the association between statin use and PD...
November 16, 2017: Neuroepidemiology
https://www.readbyqxmd.com/read/29143418/identification-of-swallowing-disorders-in-early-and-mid-stage-parkinson-s-disease-using-pattern-recognition-of-pharyngeal-high-resolution-manometry-data
#2
C A Jones, M R Hoffman, L Lin, S Abdelhalim, J J Jiang, T M McCulloch
BACKGROUND: Parkinson's disease (PD) can cause severe dysphagia, especially later in disease progression. Early identification of swallowing dysfunction may lead to earlier intervention. Pharyngeal high-resolution manometry (HRM) provides complementary information to videofluoroscopy, with advantages of being quantitative and objective. Artificial neural network (ANN) classification can examine non-linear relationships among multiple variables with relatively low bias. We evaluated if ANN techniques could differentiate between patients with PD and healthy controls...
November 16, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/29139041/drug-safety-analysis-in-a-real-life-cohort-of-parkinson-s-disease-patients-with-polypharmacy
#3
Saskia Müller-Rebstein, Claudia Trenkwalder, Jens Ebentheuer, Wolfgang H Oertel, Carsten Culmsee, Günter U Höglinger
BACKGROUND: Polypharmacy is common in geriatric Parkinson's disease (PD) patients in advanced disease stages with multiple comorbidities, bearing multiple risks for drug safety in theory. OBJECTIVE: The aim of this study was to empirically identify the most frequent and relevant contraindications and drug interactions actually occurring and compromising drug safety in PD in real life. METHODS: We conducted a prospective observational study in a multimorbid cohort of PD patients with polypharmacy admitted to a specialized hospital...
November 14, 2017: CNS Drugs
https://www.readbyqxmd.com/read/29137045/the-significance-of-uric-acid-in-the-diagnosis-and-treatment-of-parkinson-disease-an-updated-systemic-review
#4
Zhange Yu, Shuai Zhang, Dongdong Wang, Meng Fan, Fuqiang Gao, Wei Sun, Zirong Li, Shiliang Li
BACKGROUND: Parkinson disease (PD) is a neurodegenerative disease characterized by chronic and progressive loss of dopaminergic neurons in substansia nigra pars compacta. Oxidative stress is proposed to play a critical role in the pathogenesis of PD. Uric acid (UA), as an important physiological antioxidant, is identified a molecular predictor associated with a decreased risk and a slower disease progression for PD and potential neuroprotectant of PD by increasing epidemiological and clinical evidences...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29136779/juglanin-ameliorates-lps-induced-neuroinflammation-in-animal-models-of-parkinson-s-disease-and-cell-culture-via-inactivating-tlr4-nf-%C3%AE%C2%BAb-pathway
#5
Fang-Xue Zhang, Ren-Shi Xu
Parkinson's disease (PD) is a common neuro-degenerative disorder, and novel therapeutic targets are required for the treatment of PD. Juglanin is a natural compound extracted from the crude Polygonum aviculare, exhibiting anti-inflammatory, anti-oxidant and anti-cancer activities. In our study, PD in mice was induced by systemic LPS treatment as evidenced by enhanced α-synuclein and reduced tyrosine hydroxylase (TH), which were reversed by juglanin treatment. Moreover, juglanin administration attenuated LPS-caused behavioral and memory impairments and reduced LPS-induced enhancement of neuro-degenerative markers, including amyloid β (Aβ) and p-Tau...
November 7, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29133570/activity-of-simulated-human-dosage-regimens-of-meropenem-and-vaborbactam-against-carbapenem-resistant-enterobacteriaceae-in-an-in-vitro-hollow-fiber-model
#6
Mojgan Sabet, Ziad Tarazi, Debora Rubio-Aparicio, Thomas G Nolan, Jonathan Parkinson, Olga Lomovskaya, Michael N Dudley, David C Griffith
The objective of these studies was to evaluate the exposures of meropenem and vaborbactam that would produce antibacterial activity and prevent resistance development in carbapenem-resistant, Klebsiella pneumoniae carbapenemase (KPC)-producing Enterobacteriaceae strains when tested at an inocula of 10(8) CFU/mL. Thirteen K. pneumoniae isolates, three Enterobacter cloacae isolates, and one Escherichia coli isolate were examined in an in vitro hollow fiber model over 32 hours. Simulated dosage regimens of meropenem 1-2 g with vaborbactam 1-2 g, meropenem administered every 8 hours by 3 hour infusion based on Phase 1 or Phase 3 patient pharmacokinetic data were studied in the model...
November 13, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29123477/the-effects-of-medium-spiny-neuron-morphologcial-changes-on-basal-ganglia-network-under-external-electric-field-a-computational-modeling-study
#7
Xiaohan Zhang, Shenquan Liu, Feibiao Zhan, Jing Wang, Xiaofang Jiang
The damage of dopaminergic neurons that innervate the striatum has been considered to be the proximate cause of Parkinson's disease (PD). In the dopamine-denervated state, the loss of dendritic spines and the decrease of dendritic length may prevent medium spiny neuron (MSN) from receiving too much excitatory stimuli from the cortex, thereby reducing the symptom of Parkinson's disease. However, the reduction in dendritic spine density obtained by different experiments is significantly different. We developed a biological-based network computational model to quantify the effect of dendritic spine loss and dendrites tree degeneration on basal ganglia (BG) signal regulation...
2017: Frontiers in Computational Neuroscience
https://www.readbyqxmd.com/read/29119656/factors-that-lead-to-hospitalisation-in-patients-with-parkinson-disease-a-systematic-review
#8
REVIEW
Luan Koay, Joanne Rose, Ahmed H Abdelhafiz
OBJECTIVES: Parkinson disease (PD) frequently leads to acute hospitalisation resulting in increased cost to health care systems and reduced quality of life for patients. The objective of this review was to identify causes that lead to acute hospitalisation of patients with PD. METHODS: A systematic review of English language literature from 1997 to present. FINDINGS: The incidences of acute general medical or surgical problems that trigger acute hospitalisation in patients with PD are similar to those in the general population...
November 9, 2017: International Journal of Clinical Practice
https://www.readbyqxmd.com/read/29115757/parkinson-s-disease-nursing-care-in-emergency-settings
#9
Vicky Queen
In the UK 127,000 people are diagnosed with Parkinson's disease, many of whom are frequently admited to hospital. However, Parkinson's disease is not usually the primary cause of admission. Emergency department (ED) nurses must be aware of the medication needs of people with Parkinson's disease and how these can be met in emergency setings to ensure the stability of their condition and to prevent the development of neuroleptic malignant syndrome, a potentially fatal condition caused by abrupt omission of Parkinson's medication...
September 14, 2017: Emergency Nurse: the Journal of the RCN Accident and Emergency Nursing Association
https://www.readbyqxmd.com/read/29108286/park14-pla2g6-mutants-are-defective-in-preventing-rotenone-induced-mitochondrial-dysfunction-ros-generation-and-activation-of-mitochondrial-apoptotic-pathway
#10
Ching-Chi Chiu, Tu-Hsueh Yeh, Chin-Song Lu, Yin-Cheng Huang, Yi-Chuan Cheng, Ying-Zu Huang, Yi-Hsin Weng, Yu-Chuan Liu, Szu-Chia Lai, Ying-Ling Chen, Yu-Jie Chen, Chao-Lang Chen, Hsin-Yi Chen, Yan-Wei Lin, Hung-Li Wang
Mutations in the gene encoding Ca(2+)-independent phospholipase A2 group 6 (PLA2G6) cause the recessive familial type 14 of Parkinson's disease (PARK14). Mitochondrial dysfunction is involved in the pathogenesis of Parkinson's disease (PD). PLA2G6 is believed to be required for maintaining mitochondrial function. In the present study, rotenone-induced cellular model of PD was used to investigate possible molecular pathogenic mechanism of PARK14 mutant PLA2G6-induced PD. Overexpression of wild-type (WT) PLA2G6 ameliorated rotenone-induced apoptotic death of SH-SY5Y dopaminergic cells...
October 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29107639/cjun-n-terminal-kinase-jnk-mediates-cortico-striatal-signaling-in-a-model-of-parkinson-s-disease
#11
Giada Spigolon, Anna Cavaccini, Massimo Trusel, Raffaella Tonini, Gilberto Fisone
The cJun N-terminal kinase (JNK) signaling pathway has been extensively studied with regard to its involvement in neurodegenerative processes, but little is known about its functions in neurotransmission. In a mouse model of Parkinson's disease (PD), we show that the pharmacological activation of dopamine D1 receptors (D1R) produces a large increase in JNK phosphorylation. This effect is secondary to dopamine depletion, and is restricted to the striatal projection neurons that innervate directly the output structures of the basal ganglia (dSPN)...
October 28, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/29107062/the-anti-aging-protein-klotho-alleviates-injury-of-nigrostriatal-dopaminergic-pathway-in-6-hydroxydopamine-rat-model-of-parkinson-s-disease-involvement-of-pka-camkii-creb-signaling
#12
Tourandokht Baluchnejadmojarad, Seyed-Mohammad Eftekhari, Nida Jamali-Raeufy, Sobhan Haghani, Hossein Zeinali, Mehrdad Roghani
Parkinson's disease (PD) is a prevalent movement disorder in the elderly. PD is hallmarked with progressive deterioration of mesencephalic dopaminergic neurons and development of debilitating motor and non-motor clinical symptoms. Klotho protein is the product of an aging-suppressor gene that its overexpression could protect neurons against oxidative injury. This study was undertaken to explore whether exogenous klotho could alleviate injury of nigrostriatal dopaminergic pathway in 6-hydroxydopamine (6-OHDA) rat model of PD...
October 31, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/29104115/lowered-ipla2%C3%AE-activity-causes-increased-mitochondrial-lipid-peroxidation-and-mitochondrial-dysfunction-in-a-rotenone-induced-model-of-parkinson-s-disease
#13
Honglu Chao, Yinlong Liu, Xian Fu, Xiupeng Xu, Zhongyuan Bao, Chao Lin, Zheng Li, Yan Liu, Xiaoming Wang, Yongping You, Ning Liu, Jing Ji
iPLA2γ, calcium-independent phospholipase A2γ, discerningly hydrolyses glycerophospholipids to liberate free fatty acids. iPLA2γ-deficiency has been associated with abnormal mitochondrial function. More importantly, the iPLA2 family is causative proteins in mitochondrial neurodegenerative disorders such as parkinsonian disorders. However, the mechanisms by which iPLA2γ affects Parkinson's disease (PD) remain unknown. Mitochondrion stress has a key part in rotenone-induced dopaminergic neuronal degeneration...
November 2, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/29102164/soy-isoflavone-genistein-attenuates-lipopolysaccharide-induced-cognitive-impairments-in-the-rat-via-exerting-anti-oxidative-and-anti-inflammatory-effects
#14
Seyed-Mohamad-Sadegh Mirahmadi, Alireza Shahmohammadi, Ali-Mohammad Rousta, Mohammad-Reza Azadi, Javad Fahanik-Babaei, Tourandokht Baluchnejadmojarad, Mehrdad Roghani
Systemic inflammation during infectious disorders usually accompanies chronic complications including cognitive dysfunction. Neuroinflammation and cognitive deficit are also observed in some debilitating neurological disorders like Alzheimer's and Parkinson's diseases. Genistein is a soy isoflavone with multiple beneficial effects including anti-inflammatory, anti-oxidative, and protective properties. In this research study, the effect of genistein in prevention of lipopolysaccharide (LPS)-induced cognitive dysfunction was investigated...
October 25, 2017: Cytokine
https://www.readbyqxmd.com/read/29100525/modulating-the-catalytic-activity-of-ampk-has-neuroprotective-effects-against-%C3%AE-synuclein-toxicity
#15
Wojciech Bobela, Sameer Nazeeruddin, Graham Knott, Patrick Aebischer, Bernard L Schneider
BACKGROUND: Metabolic perturbations and slower renewal of cellular components associated with aging increase the risk of Parkinson's disease (PD). Declining activity of AMPK, a critical cellular energy sensor, may therefore contribute to neurodegeneration. METHODS: Here, we overexpress various genetic variants of the catalytic AMPKα subunit to determine how AMPK activity affects the survival and function of neurons overexpressing human α-synuclein in vivo. RESULTS: Both AMPKα1 and α2 subunits have neuroprotective effects against human α-synuclein toxicity in nigral dopaminergic neurons...
November 3, 2017: Molecular Neurodegeneration
https://www.readbyqxmd.com/read/29098660/therapeutic-potential-of-ursolic-acid-to-manage-neurodegenerative-and-psychiatric-diseases
#16
Ana B Ramos-Hryb, Francis L Pazini, Manuella P Kaster, Ana Lúcia S Rodrigues
Ursolic acid is a pentacyclic triterpenoid found in several plants. Despite its initial use as a pharmacologically inactive emulsifier in pharmaceutical, cosmetic and food industries, several biological activities have been reported for this compound so far, including anti-tumoural, anti-diabetic, cardioprotective and hepatoprotective properties. The biological effects of ursolic acid have been evaluated in vitro, in different cell types and against several toxic insults (i.e. 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine, amyloid-β peptides, kainic acid and others); in animal models of brain-related disorders (Alzheimer disease, Parkinson disease, depression, traumatic brain injury) and ageing; and in clinical studies with cancer patients and for muscle atrophy...
November 2, 2017: CNS Drugs
https://www.readbyqxmd.com/read/29095706/trunk-exercises-improve-gait-symmetry-in-parkinson-disease-a-blind-phase-ii-randomised-controlled-trial
#17
Ryan P Hubble, Geraldine Naughton, Peter A Silburn, Michael H Cole
OBJECTIVE: Deficits in step-to-step symmetry and trunk muscle activations have been linked to falls in Parkinson's disease (PD). Given such symptoms are poorly managed with anti-parkinsonian medications, alternate therapies are needed. This blind phase II randomised-controlled trial sought to establish whether exercise can improve step-to-step symmetry in PD. DESIGN: Twenty-four PD patients with a falls history completed baseline assessments of symptom severity, balance confidence, mobility and quality of life...
November 1, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/29094013/retraction-note-to-strategy-for-prevention-of-hip-fractures-in-patients-with-parkinson-s-disease
#18
Quanjun Cui
[This retracts the article on p. 9 in vol. 3, PMID: 23173109.].
October 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/29093677/levodopa-benserazide-loaded-microspheres-alleviate-l-dopa-induced-dyskinesia-through-preventing-the-over-expression-of-d1r-shp-2-erk1-2-signaling-pathway-in-a-rat-model-of-parkinson-s-disease
#19
Ying Wan, Na Wu, Lu Song, Xijin Wang, Zhenguo Liu, Weien Yuan, Jing Gan
Background: The long-term intermittent Levodopa (L-dopa) stimulation contributes to an aberrant activation of D1 receptor (D1R) mediated extracellular signal-regulated kinases1/2 (ERK1/2) in the striatal medium spiny neurons, resulting in the occurrence of L-dopa induced dyskinesia (LID). Recently, a novel signaling pathway, D1R/Shp-2/ERK1/2, was proposed to be required for the occurrence of LID. Here we designed the study in which two different methods of L-dopa delivery [continuous dopamine stimulation (CDS) vs...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/29090092/current-understanding-of-the-molecular-mechanisms-in-parkinson-s-disease-targets-for-potential-treatments
#20
REVIEW
Panchanan Maiti, Jayeeta Manna, Gary L Dunbar
Gradual degeneration and loss of dopaminergic neurons in the substantia nigra, pars compacta and subsequent reduction of dopamine levels in striatum are associated with motor deficits that characterize Parkinson's disease (PD). In addition, half of the PD patients also exhibit frontostriatal-mediated executive dysfunction, including deficits in attention, short-term working memory, speed of mental processing, and impulsivity. The most commonly used treatments for PD are only partially or transiently effective and are available or applicable to a minority of patients...
2017: Translational Neurodegeneration
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