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https://www.readbyqxmd.com/read/28087304/sleep-and-neurodegeneration-a-critical-appraisal
#1
REVIEW
Jagan A Pillai, James B Leverenz
Sleep abnormalities are clearly recognized as distinct clinical symptom of concern in neurodegenerative disorders. Appropriate management of sleep related symptoms has a positive impact on the quality of life of patients with neurodegenerative disorders. This review provides an overview of mechanisms that are currently being considered that tie sleep with neurodegeneration. It appraises the literature regarding specific sleep changes among common neurodegenerative diseases with a focus on Alzheimer's disease and synucleinopathies (i...
January 10, 2017: Chest
https://www.readbyqxmd.com/read/28079000/application-of-monoterpenoids-and-their-derivatives-for-treatment-of-neurodegenerative-disorders
#2
Konstantin P Volcho, Sergey S Laev, Ghulam Md Ashraf, Gjumrakch Aliev, Nariman F Salakhutdinov
Neurodegenerative disorders (NDDs) like Alzheimer disease, Parkinson's disease and Huntington's disease are a heterogeneous group of disorders with the progressive and severe loss of neurons. There are no full proof cures for these diseases, and only medicines are available that can alleviate some of the symptoms. Developing effective treatments for the NDDs is a difficult but necessary task. Hence, the investigation of monoterpenoids which modulate targets applicable to many NDDs is highly relevant. Many monoterpenoids have demonstrated promising neuroprotective activity mediated by various systems...
11, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28078613/l-f001-a-multifunction-rock-inhibitor-prevents-6-ohda-induced-cell-death-through-activating-akt-gsk-3beta-and-nrf2-ho-1-signaling-pathway-in-pc12-cells-and-attenuates-mptp-induced-dopamine-neuron-toxicity-in-mice
#3
Liting Luo, Jingkao Chen, Dan Su, Meihui Chen, Bingling Luo, Rongbiao Pi, Lan Wang, Wei Shen, Rikang Wang
Amounting evidences demonstrated that Rho/Rho-associated kinase (ROCK) might be a novel target for the therapy of Parkinson's disease (PD). Recently, we synthesized L-F001 and revealed it was a potent ROCK inhibitor with multifunctional effects. Here we investigated the effects of L-F001 in PD models. We found that L-F001 potently attenuated 6-OHDA-induced cytotoxicity in PC12 cells and significantly decreased intracellular reactive oxygen species (ROS), prevented the 6-OHDA-induced decline of mitochondrial membrane potential and intracellular GSH levels...
January 11, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28078567/the-c-abl-inhibitor-in-parkinson-disease
#4
REVIEW
Zhi-Hua Zhou, Yun-Fan Wu, Xue-Min Wang, Yong-Zhu Han
Parkinson's disease (PD) is an insidious onset neurodegenerative disease affecting approximately 1% of the population over the age of 65. So far available therapies for PD have only aimed at improving or alleviating symptoms, but not at slowing, preventing, and reversing the course of PD. Recently, some studies have indicated that the levels and activation of Abelson non-receptor tyrosine kinase (c-Abl, Abl1) were up-regulated in the brain tissue of patients with PD and demonstrated that c-Abl inhibitors could improve motor behavior, prevent the loss of dopamine neurons, inhibit phosphorylation of Cdk5, regulate α-synuclein phosphorylation and clearance, inhibit the tyrosine phosphorylation of parkin and decrease parkin substrate, for example, PARIS (zinc finger protein 746), AIMP2 (aminoacyl-tRNA synthetase-interacting multifunctional protein type2), FBP1 (fuse-binding protein 1), and synphilin-1...
January 11, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28074613/health-benefits-of-methylxanthines-in-neurodegenerative-diseases
#5
REVIEW
Ainhoa Oñatibia-Astibia, Rafael Franco, Eva Martínez-Pinilla
Methylxanthines (MTXs) are consumed by almost everybody in almost every area of the world. Caffeine, theophylline and theobromine are the most well-known members of this family of compounds; they are present, inter alia, in coffee, tea, cacao, yerba mate and cola drinks. MTXs are readily absorbed in the gastrointestinal tract and are able to penetrate into the central nervous system, where they exert significant psychostimulant actions, which are more evident in acute intake. Coffee has been paradigmatic, as its use was forbidden in many diseases, however, this negative view has radically changed; evidence shows that methylxanthines display health benefits in diseases involving cell death in the nervous system...
January 11, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28067625/pituitary-adenylate-cyclase-activating-polypeptide-pacap-has-neuroprotective-function-in-dopamine-based-neurodegeneration-developed-in-two-parkinsonian-models
#6
G Maasz, Z Zrinyi, D Reglodi, D Petrovics, A Rivnyak, T Kiss, A Jungling, A Tamas, Z Pirger
It has been observed that pituitary-adenylate cyclase activating polypeptide (PACAP) rescued DAergic neurons from neurodegeneration and improved motor alterations induced by 6-hydroxy-dopamine (6-OHDA) in rat parkinsonian models. Recently we investigated the molecular background of the neuroprotective effect of PACAP in DA-based neurodegeneration using rotenone-induced snail and 6-OHDA-induced rat models of Parkinson's disease. The behavioural activity, monoamine (DA and serotonin), metabolic enzyme (S-COMT, MB-COMT and MAO-B) and PARK7/DJ-1 protein contents were measured before and after PACAP-treatment in both models...
December 22, 2016: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28067252/two-step-amyloid-aggregation-sequential-lag-phase-intermediates
#7
Fabio Castello, Jose M Paredes, Maria J Ruedas-Rama, Miguel Martin, Mar Roldan, Salvador Casares, Angel Orte
The self-assembly of proteins into fibrillar structures called amyloid fibrils underlies the onset and symptoms of neurodegenerative diseases, such as Alzheimer's and Parkinson's. However, the molecular basis and mechanism of amyloid aggregation are not completely understood. For many amyloidogenic proteins, certain oligomeric intermediates that form in the early aggregation phase appear to be the principal cause of cellular toxicity. Recent computational studies have suggested the importance of nonspecific interactions for the initiation of the oligomerization process prior to the structural conversion steps and template seeding, particularly at low protein concentrations...
January 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28064330/blockade-of-fast-a-type-and-tea-sensitive-potassium-channels-provide-an-antiparkinsonian-effect-in-a-6-ohda-animal-model
#8
Hashem Haghdoost-Yazdi, Hossein Piri, Reza Najafipour, Ayda Faraji, Negin Fraidouni, Tahereh Dargahi, Mahmud Alipour Heidari
OBJECTIVE: To evaluate the effect of K+ channels inhibitors in treatment of parkinson`s disease (PD). METHODS: This prospective comparative study was conducted in the Qazvin University of Medical Sciences, Iran, from April 2015 to January 2016. Male rats (n=37) received intraperitoneal doses of TEA (2 and 5 mg/kg) or 4-AP (0.5 and 1 mg/kg) twice-daily, before a stereotactic injection of 6-hydroxydopamine (6-OHDA) for the following 7 days. The 6-OHDA was injected into right medial forebrain bundle (MFB) of the rat brains...
January 2017: Neurosciences: the Official Journal of the Pan Arab Union of Neurological Sciences
https://www.readbyqxmd.com/read/28062948/low-levels-of-prohibitin-in-substantia-nigra-makes-dopaminergic-neurons-vulnerable-in-parkinson-s-disease
#9
Debashis Dutta, Nilufar Ali, Emili Banerjee, Raghavendra Singh, Amit Naskar, Ramesh Kumar Paidi, Kochupurackal P Mohanakumar
Since substantia nigra (SN) and ventral tegmental area (VTA) dopaminergic neurons are, respectively, susceptible or largely unaffected in Parkinson's disease (PD), we searched for protein(s) that regulates this differential sensitivity. Differentially, expressed proteins in SN and VTA were investigated employing two-directional gel electrophoresis- matrix-assisted laser desorption ionization time of flight (MALDI-TOF-TOF) analyses. Prohibitin, which is involved in mitochondrial integrity, was validated using immunoblot, qRT-PCR, and immunohistochemistry in normal mice as well as 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-model, PD postmortem human brains, and PD cybrids...
January 6, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28057432/pattern-of-cognitive-impairment-in-patients-with-parkinson-s-disease-and-psychosis-a-critical-review
#10
REVIEW
Abhishek Lenka, Shantala Hegde, Shyam Sundar Arumugham, Pramod Kumar Pal
Psychosis is one of the debilitating non-motor symptoms (NMS) of Parkinson's disease (PD). Cognitive impairment is considered to be a risk factor for emergence of psychosis in PD. Early detection of relevant cognitive impairment may serve as a predictor for development of psychosis, with implications for prevention and early intervention. However, the exact pattern of cognitive impairment associated with psychosis is not clear. In this article, we aim to critically review the literature on case-control studies in PD patients with and without psychosis in order to understand the pattern of cognitive impairment in those with psychosis...
December 29, 2016: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28057299/mechanisms-of-parkinson-s-disease-lessons-from-drosophila
#11
V L Hewitt, A J Whitworth
The power of Drosophila genetics has attracted attention in tackling important biomedical challenges such as the understanding and prevention of neurodegenerative diseases. Parkinson's disease (PD) is the most common neurodegenerative movement disorder which results from the relentless degeneration of midbrain dopaminergic neurons. Over the past two decades tremendous advances have been made in identifying genes responsible for inherited forms of PD. The ease of genetic manipulation in Drosophila has spurred the development of numerous models of PD, including expression of human genes carrying pathogenic mutations or the targeted mutation of conserved orthologs...
2017: Current Topics in Developmental Biology
https://www.readbyqxmd.com/read/28050656/the-recommendations-of-a-consensus-panel-for-the-screening-diagnosis-and-treatment-of-neurogenic-orthostatic-hypotension-and-associated-supine-hypertension
#12
REVIEW
Christopher H Gibbons, Peter Schmidt, Italo Biaggioni, Camille Frazier-Mills, Roy Freeman, Stuart Isaacson, Beverly Karabin, Louis Kuritzky, Mark Lew, Phillip Low, Ali Mehdirad, Satish R Raj, Steven Vernino, Horacio Kaufmann
Neurogenic orthostatic hypotension (nOH) is common in patients with neurodegenerative disorders such as Parkinson's disease, multiple system atrophy, pure autonomic failure, dementia with Lewy bodies, and peripheral neuropathies including amyloid or diabetic neuropathy. Due to the frequency of nOH in the aging population, clinicians need to be well informed about its diagnosis and management. To date, studies of nOH have used different outcome measures and various methods of diagnosis, thereby preventing the generation of evidence-based guidelines to direct clinicians towards 'best practices' when treating patients with nOH and associated supine hypertension...
January 3, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28049396/oxidative-stress-and-antioxidant-potential-of-one-hundred-medicinal-plants
#13
Waseem Hassan, Hamsa Noreen, Shakila Rehman, Shehnaz Gul, Mohammad Amjad Kamal, Jean Paul Kamdem, Bakht Zaman, Joao B T da Rocha
Reactive species are produced in biological system because of redox reactions. The imbalance in pro-oxidant and antioxidant homeostasis leads to the production of toxic reactive oxygen and nitrogen species like hydrogen peroxide, organic peroxides, hydroxyl radicals, superoxide anion and nitric oxide. Inactivation of metabolic enzymes, oxidation of biomolecules and cellular damage are some of the prominent characteristics of reactive species. Similarly, oxidative stress has been associated with more than one hundred (100) pathologies such as atherosclerosis, diabetes, cardiovascular diseases, pancreatic and liver diseases, joint disorders, cardiac fibrosis, acute respiratory distress syndrome, neurological diseases (amyotrophic lateral sclerosis, Huntington's disorder, Parkinson's disease and Alzheimer's disease), ageing and cancer etc...
January 2, 2017: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/28049252/neurological-complications-resulting-from-non-oral-occupational-methanol-poisoning
#14
Ji Hyun Choi, Seung Keun Lee, Young Eun Gil, Jia Ryu, Kyunghee Jung-Choi, Hyunjoo Kim, Jun Young Choi, Sun Ah Park, Hyang Woon Lee, Ji Young Yun
Methanol poisoning results in neurological complications including visual disturbances, bilateral putaminal hemorrhagic necrosis, parkinsonism, cerebral edema, coma, or seizures. Almost all reported cases of methanol poisoning are caused by oral ingestion of methanol. However, recently there was an outbreak of methanol poisoning via non-oral exposure that resulted in severe neurological complications to a few workers at industrial sites in Korea. We present 3 patients who had severe neurological complications resulting from non-oral occupational methanol poisoning...
February 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28042771/oxidative-stress-pro-inflammatory-cytokines-and-antioxidants-regulate-expression-levels-of-micrornas-in-parkinson-s-disease
#15
Kedar N Prasad
Parkinson's disease (PD) is a slow progressive neurodegenerative disease associated with abnormal function of extrapyramidal system. Although several biochemical and genetic defects have been identified, increased oxidative stress and chronic inflammation are one of the earliest events that initiate and promote PD. Oxidative stress also participates in impaired non-motor symptoms.The levels of microRNAs that are evolutionarily conserved single-stranded non-coding RNAs of approximately 22 nucleotide in length are altered in PD...
January 2, 2017: Current Aging Science
https://www.readbyqxmd.com/read/28042770/preventive-and-protective-roles-of-dietary-nrf2-activators-against-central-nervous-system-diseases
#16
Yang Sun, Tuo Yang, Rehana K Leak, Jun-He Chen, Feng Zhang
Central nervous system diseases are major health issues and are often associated with disability or death. Most central nervous system disorders are characterized by high levels of oxidative stress. Nuclear factor erythroid 2 related factor (Nrf2) is known for its ability to regulate the expression of a series of enzymes with antioxidative, prosurvival, and detoxification effects. Under basal conditions, Nrf2 forms a complex with Kelch-like ECH associated protein 1, leading to Nrf2 inactivation via ubiquitination and degradation...
January 2, 2017: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/28041945/knockdown-transgenic-lrrk-drosophila-resists-paraquat-induced-locomotor-impairment-and-neurodegeneration-a-therapeutic-strategy-for-parkinson-s-disease
#17
Diana Quintero-Espinosa, Marlene Jimenez-Del-Rio, Carlos Velez-Pardo
Leucine-rich repeat kinase 2 (LRRK2) has been linked to familial and sporadic Parkinson's disease. However, it is still unresolved whether LRRK2 in dopaminergic (DAergic) neurons may or may not aggravate the phenotype. We demonstrate that knocking down (KD) the Lrrk gene by RNAi in DAergic neurons untreated or treated with paraquat (PQ) neither affected the number of DAergic clusters, tyrosine hydroxylase (TH) protein levels, lifespan nor locomotor activity when compared to control (i.e. TH/+) flies. KD transgenic Lrrk flies dramatically increased locomotor activity in presence of TH enzyme inhibitor alpha-methyl-para-tyrosine (aMT), whereas no effect on lifespan was observed in both fly lines...
December 29, 2016: Brain Research
https://www.readbyqxmd.com/read/28041638/the-use-of-acupuncture-in-patients-with-parkinson-s-disease
#18
Fung Kei Cheng
Parkinson's disease, a progressive neuro-degeneration of multiple systems damaging motor and non-motor functions, affects individual and societal dimensions negatively. In addition to standard treatments, complementary and alternative medicine has been adopted, in which acupuncture, a traditional Chinese medical practice by needle penetration at specific stimulation points (acupoints) along the body, indicates positive outcomes in this illness. Apart from offering an overview of using acupuncture in Parkinson's disease, this literature review analyses the effects of acupuncture on Parkinson's-induced physical symptoms and mental problems such as slow movements, stiffness, constipation, and sleep disorders...
December 29, 2016: Geriatric Nursing
https://www.readbyqxmd.com/read/28040344/-other-care-in-parkinson-s-disease-psychological-rehabilitation-therapeutic-education-and-new-technologies
#19
Julia Dupouy, Fabienne Ory-Magne, Christine Brefel-Courbon
Diagnosis of Parkinson's disease (PD) is often traumatic. It is then important to organize this announcement in order to support the patient in this major step of his care course. Anxiety and depression are present in about 50% of PD patients. Besides pharmacological treatment, cognitive-behavioral therapy induces improvement in anxio-depressive symptoms. We have to promote physical activity for PD patients, from the beginning of the disease, because it prevents from deconditioning, improves motor and non-motor symptoms, quality of life, and decreases loneliness...
December 28, 2016: La Presse Médicale
https://www.readbyqxmd.com/read/28034783/cerebellar-insulin-igf-1-signaling-in-diabetic-rats-effects-of-exercise-training
#20
Mariana Eiras Borges, Alessandra Mussi Ribeiro, José Rodrigo Pauli, Luciana Mendonça Arantes, Eliete Luciano, Leandro Pereira de Moura, José Alexandre Curiacos de Almeida Leme, Alessandra Medeiros, Natália Oliveira Bertolini, Clarice Yoshiko Sibuya, Ricardo José Gomes
The Diabetes Mellitus (DM) is a chronic disease associated with loss of brain regions such as the cerebellum, increasing the risk of developing neurodegenerative diseases such as Parkinson's disease (PD). In the brain of diabetic and PD organisms the insulin/IGF-1 signaling is altered. Exercise training is an effective intervention for the prevention of neurodegerative diseases since it release neurotrophic factors and regulating insulin/IGF-1 signaling in the brain. This study aimed to evaluate the proteins involved in the insulin/IGF-1 pathway in the cerebellum of diabetic rats subjected to exercise training protocol...
December 26, 2016: Neuroscience Letters
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