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https://www.readbyqxmd.com/read/28728000/tailor-made-purified-human-platelet-lysate-concentrated-in-neurotrophins-for-treatment-of-parkinson-s-disease
#1
Ming-Li Chou, Joe-Wei Wu, Flore Gouel, Aurélie Jonneaux, Kelly Tillerman, Ting-Yi Renn, Charlotte Laloux, Hung-Ming Chang, Liang-Tzung Lin, Jean-Christophe Devedjian, David Devos, Thierry Burnouf
Human platelet lysates (PLs), which contain multiple neurotrophins, have been proposed for treating neurodegenerative disorders, including Parkinson's disease (PD). However, current PLs suspended in plasma have high protein content and contain fibrinogen/fibrin and, following activation, also proteolytic and thrombogenic enzymes. Upon brain administration, such PLs may saturate the cerebrospinal fluid and exert neurotoxicity. We assessed whether purified PLs, concentrated in neurotrophins, protected dopaminergic neurons in PD models...
July 12, 2017: Biomaterials
https://www.readbyqxmd.com/read/28725655/cell-replacement-therapy-is-the-remedial-solution-for-treating-parkinson-s-disease
#2
REVIEW
Venkatesan Dhivya, Vellingiri Balachandar
The selective degeneration of dopaminergic (DA) neurons in Parkinson's disease (PD) has made an idol target for cell replacement therapies and other emerging surgical treatments. Certainly, by transplantation method, the therapeutic regimens such as human fetal ventral midbrain (hfVM) cells, human embryonic stem cells (hESCs), human neural stem/precursor/ progenitor cells (hNSCs/hNPCs), human mesenchymal stem cells (hMSCs), human induced neural stem cells (hiNSCs), and human induced pluripotent stem cells (hiPSCs) have been used into DA deficient striatum...
2017: Stem Cell Investigation
https://www.readbyqxmd.com/read/28722508/atg5-and-atg7-dependent-autophagy-in-dopaminergic-neurons-regulates-cellular-and-behavioral-responses-to-morphine
#3
Ling-Yan Su, Rongcan Luo, Qianjin Liu, Jing-Ran Su, Lu-Xiu Yang, Yu-Qiang Ding, Lin Xu, Yong-Gang Yao
The molecular basis of chronic morphine exposure remains unknown. In this study, we hypothesized that macroautophagy/autophagy of dopaminergic neurons would mediate the alterations of neuronal dendritic morphology and behavioral responses induced by morphine. Chronic morphine exposure caused Atg5 (autophagy related 5)- and Atg7 (autophagy related 7)-dependent and dopaminergic neuron-specific autophagy resulting in decreased neuron dendritic spines and the onset of addictive behaviors. In cultured primary midbrain neurons, morphine treatment significantly reduced total dendritic length and complexity, and this effect could be reversed by knockdown of Atg5 or Atg7...
July 19, 2017: Autophagy
https://www.readbyqxmd.com/read/28721822/opioid-antagonists-for-pharmacological-treatment-of-gambling-disorder-are-they-relevant
#4
Caroline Victorri-Vigneau, Andrew Spiers, Pascal Caillet, Mélanie Bruneau, Gaëlle Challet-Bouju, Marie Grall-Bronnec
Background To date, no drugs have been approved for gambling disorder. Numerous publications have described the value of opioid antagonists. Indeed, the mesocorticolimbic dopaminergic pathway has been suggested as the underlying cause of reward-seeking behaviour, and it is modulated by the opioid system. Objective This study aims to evaluate the relevance of opioid antagonists for treating GD. Method A systematic literature review was conducted. A search of the PubMed electronic database, PsycINFO and the Cochrane Systematic Review Database without any limits was performed...
July 18, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28717970/prostaglandin-ep2-receptors-mediate-mesenchymal-stromal-cell-neuroprotective-effects-on-dopaminergic-neurons
#5
Juan Andrés Parga, María García-Garrote, Salvador Martínez, Ángel Raya, José Luis Labandeira-García, Jannette Rodríguez-Pallares
Mesenchymal stromal cells (MSCs) have been shown to have useful properties for cell therapy and have been proposed for treatment of neurodegenerative diseases, including Parkinson's disease. However, the mechanisms involved in recovering dopaminergic neurons are not clear. The present study aims to evaluate the pathways and molecules involved in the neuroprotective effect of MSCs. We analyzed the viability of dopaminergic cells from different sources in response to conditioned medium derived from bone marrow MSC (MSC-CM)...
July 17, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28715903/parkinson-s-disease-and-parkinson-s-disease-psychosis-a-perspective-on-the-challenges-treatments-and-economic-burden
#6
Doral Fredericks, James C Norton, Carolyn Atchison, Robert Schoenhaus, Michael W Pill
Parkinson's disease (PD) is a progressive neurodegenerative disease associated with a decrease in the neurotransmitter dopamine and characterized by the cardinal motor hallmarks of resting tremor, rigidity, bradykinesia/akinesia, and postural instability. Lesser-known features of PD revolve around nonmotor concerns including psychosis, dementia, sleep disturbances, autonomic dysfunction, and sensory abnormalities. Parkinson's disease psychosis (PDP) contributes significantly to morbidity, mortality, nursing home placement, and quality of life (QOL)...
April 2017: American Journal of Managed Care
https://www.readbyqxmd.com/read/28714503/protective-effects-of-fisetin-and-other-berry-flavonoids-in-parkinson-s-disease
#7
REVIEW
Pamela Maher
Parkinson's disease (PD) is an age-associated degenerative disease of the midbrain that results from the loss of dopaminergic neurons in the substantia nigra. It initially presents as a movement disorder with cognitive and other behavioral problems appearing later in the progression of the disease. Current therapies for PD only delay the onset or reduce the motor symptoms. There are no treatments to stop the nerve cell death or to cure the disease. It is becoming increasingly clear that neurological diseases such as PD are multi-factorial involving disruptions in multiple cellular systems...
July 17, 2017: Food & Function
https://www.readbyqxmd.com/read/28711473/interaction-of-reelin-and-stress-on-immobility-in-the-forced-swim-test-but-not-dopamine-mediated-locomotor-hyperactivity-or-prepulse-inhibition-disruption-relevance-to-psychotic-and-mood-disorders
#8
Michael J Notaras, Billie Vivian, Carey Wilson, Maarten van den Buuse
RATIONALE: Psychotic disorders, such as schizophrenia, as well as some mood disorders, such as bipolar disorder, have been suggested to share common biological risk factors. One such factor is reelin, a large extracellular matrix glycoprotein that regulates neuronal migration during development as well as numerous activity-dependent processes in the adult brain. The current study sought to evaluate whether a history of stress exposure interacts with endogenous reelin levels to modify behavioural endophenotypes of relevance to psychotic and mood disorders...
July 13, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28710695/serum-brain-derived-neurotrophic-factor-levels-in-treatment-na%C3%A3-ve-boys-with-attention-deficit-hyperactivity-disorder-treated-with-methylphenidate-an-8-week-observational-pretest-posttest-study
#9
Aynur Pekcanlar Akay, Halil Resmi, Sevay Alsen Güney, Handan Özek Erkuran, Gonca Özyurt, Enis Sargin, Ahmet Topuzoglu, Ali Evren Tufan
Brain-derived neurotrophic factor (BDNF) is an important neurotrophin in the brain that modulates dopaminergic neurons. In this study, we aimed to investigate the changes in serum BDNF levels of children with attention-deficit/hyperactivity disorder (ADHD) in response to OROS methylphenidate treatment. We also aimed to determine whether there were any pre-post-differences between ADHD subtypes and comorbid psychiatric disorders in serum BDNF levels. Fifty male children with ADHD and 50 male healthy controls within the age range of 6-12 years were recruited to the study...
July 14, 2017: European Child & Adolescent Psychiatry
https://www.readbyqxmd.com/read/28705346/efficient-generation-of-dopamine-neurons-by-synthetic-transcription-factor-mrnas
#10
Sang-Mi Kim, Mi-Sun Lim, Eun-Hye Lee, Sung Jun Jung, Hee Yong Chung, Chun-Hyung Kim, Chang-Hwan Park
Generation of functional dopamine (DA) neurons is an essential step for the development of effective cell therapy for Parkinson's disease (PD). The generation of DA neurons can be accomplished by overexpression of DA-inducible genes using virus- or DNA-based gene delivery methods. However, these gene delivery methods often cause chromosomal anomalies. In contrast, mRNA-based gene delivery avoids this problem and therefore is considered safe to use in the development of cell-based therapy. Thus, we used mRNA-based gene delivery method to generate safe DA neurons...
July 11, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28699520/therapeutic-strategy-of-targeting-astrocytes-for-neuroprotection-in-parkinson-s-disease
#11
Ikuko Miyazaki, Masato Asanuma
Parkinson's disease (PD) is one of common neurodegenerative diseases, which shows motor symptoms including tremor, bradykinesia, rigidity and postural instability. It also involves non-motor symptoms such as cognitive impairment, mental manifestation, autonomic disorder and sensory disturbance. Although treatments to improve the motor disability in PD are being assessed at present, the main challenge remains that is the development of neuroprotective or disease-modifying treatments. Therefore, it is desirable to find approaches that can inhibit the progression of dopaminergic neurodegeneration...
July 10, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28699332/prevalence-of-restless-legs-syndrome-in-migraine-patients-a-case-control-study-analysis-of-risk-factors-for-restless-legs-syndrome-in-migraine-patients
#12
Mariarosaria Valente, Francesco Janes, Valentina Russo, Augusto Fontana, Alessia Travanut, Martina Sommaro, Giessica Canal, Carolina Gentile, Gian Luigi Gigli
BACKGROUND: Restless legs syndrome (RLS) is a sensorimotor disorder. It can be idiopathic, associated to other diseases or to pharmacologic treatments. RLS has been reported to occur more frequently in migraine patients, but a clear pathogenetic link seems still under debate. We aimed to evaluate RLS prevalence in migraine, impact on sleep quality and the main clinical determinants of this association. METHODS: Migraine patients and age- and sex-matched controls were enrolled from 1(st) January 2011 to 30(th) December 2012...
July 2017: Headache
https://www.readbyqxmd.com/read/28698115/interleukin-17-selectively-predicts-better-outcomes-with-bupropion-ssri-combination-novel-t-cell-biomarker-for-antidepressant-medication-selection
#13
Manish K Jha, Abu Minhajuddin, Bharathi Gadad, Tracy L Greer, Taryn L Mayes, Madhukar H Trivedi
BACKGROUND: Interleukin 17 (IL-17) is produced by highly inflammatory Th17 cells and has been implicated in pathophysiology of depression. IL-17 putatively disrupts the blood brain barrier and affects dopamine synthesis whereas dopamine has been shown to decrease Th17 cell-mediated immune response. Nevertheless, whether IL-17 can predict differential treatment outcome with antidepressants modulating dopaminergic transmission is unknown. METHODS: IL-17 and other T cell and non-T cell markers (Th1, Th2 and non-T cell markers) were measured with the Bioplex Pro™ human cytokine 27-plex kit in the Combining Medications to Enhance Depression Outcomes (CO-MED) trial participants who provided baseline plasma and were treated with either bupropion plus escitalopram (bupropion-SSRI), escitalopram plus placebo (SSRI monotherapy), or venlafaxine plus mirtazapine (n=166)...
July 8, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28695985/intrastriatal-administration-of-botulinum-neurotoxin-a-normalizes-striatal-d2-r-binding-and-reduces-striatal-d1-r-binding-in-male-hemiparkinsonian-rats
#14
Franziska Wedekind, Angela Oskamp, Markus Lang, Alexander Hawlitschka, Karl Zilles, Andreas Wree, Andreas Bauer
Cerebral administration of botulinum neurotoxin A (BoNT-A) has been shown to improve disease-specific motor behavior in a rat model of Parkinson disease (PD). Since the dopaminergic system of the basal ganglia fundamentally contributes to motor function, we investigated the impact of BoNT-A on striatal dopamine receptor expression using in vitro and in vivo imaging techniques (positron emission tomography and quantitative autoradiography, respectively). Seventeen male Wistar rats were unilaterally lesioned with 6-hydroxydopamine (6-OHDA) and assigned to two treatment groups 7 weeks later: 10 rats were treated ipsilaterally with an intrastriatal injection of 1 ng BoNT-A, while the others received vehicle (n = 7)...
July 11, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/28695482/role-of-apolipoproteins-and-%C3%AE-synuclein-in-parkinson-s-disease
#15
REVIEW
Fatemeh Nouri Emamzadeh
Parkinson's disease (PD) is a progressive brain disorder that interferes with activities of normal life. The main pathological feature of this disease is the loss of more than 80% of dopamine-producing neurons in the substantia nigra (SN). Dopaminergic neuronal cell death occurs when intraneuronal, insoluble, aggregated proteins start to form Lewy bodies (LBs), the most important component of which is a protein called α-synuclein (α-syn). α-Syn structurally contains hexameric repeats of 11 amino acids, which are characteristic of apolipoproteins and thus α-syn can also be considered an apolipoprotein...
July 10, 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28694481/mechanisms-underlying-neuro-inflammation-and-neurodevelopmental-toxicity-in-the-mouse-neocortex-following-prenatal-exposure-to-ethanol
#16
Munekazu Komada, Nao Hara, Satoko Kawachi, Kota Kawachi, Nao Kagawa, Tetsuji Nagao, Yayoi Ikeda
Fetal alcohol spectrum disorders (FASD) constitute a wide range of disorders that arise from prenatal exposure to ethanol (EtOH). However, detailed reports regarding the adverse effects of prenatal EtOH exposure on neocortical morphology and its underlying pathogenic mechanisms are limited. In the present study, we aimed to characterize the anatomical abnormalities of neocortical development and their correlation with microglial properties and neuro-inflammation in a mouse model of FASD. We evaluated the development and maturation of the neocortex in ICR mice prenatally exposed to 25% (w/v) EtOH using histological and molecular analyses...
July 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28694175/daily-consumption-of-methylene-blue-reduces-attentional-deficits-and-dopamine-reduction-in-a-6-ohda-model-of-parkinson-s-disease
#17
Elizabeth S Smith, Madeline E Clark, Gwendolyn A Hardy, David J Kraan, Elisa Biondo, F Gonzalez-Lima, Lawrence K Cormack, Marie Monfils, Hongjoo J Lee
Recently, alternative drug therapies for Parkinson's disease (PD) have been investigated as there are many shortcomings of traditional dopamine-based therapies including difficulties in treating cognitive and attentional dysfunction. A promising therapeutic avenue is to target mitochondrial dysfunction and oxidative stress in PD. One option might be the use of methylene blue (MB), an antioxidant and metabolic enhancer. MB has been shown to improve cognitive function in both intact rodents and rodent disease models...
July 8, 2017: Neuroscience
https://www.readbyqxmd.com/read/28692855/recuperation-of-slow-walking-in-de-novo-parkinson-s-disease-is-more-closely-associated-with-increased-cadence-rather-than-with-expanded-stride-length
#18
Kyum-Yil Kwon, Hye Mi Lee, Sung Hoon Kang, Seon Jong Pyo, Han Jun Kim, Seong-Beom Koh
INTRODUCTION: Gait characteristics in the early stages of Parkinson's disease (PD) have been less investigated so far. Moreover, the levodopa effect on gait in early PD remains to be further elucidated. We prospectively designed the study to examine gait dynamics and effect of dopaminergic treatment in patients with de novo PD. METHODS: Spatiotemporal parameters were measured in healthy controls and drug naïve patients with PD, using computerized analysis with GAITRite system during usual gait...
July 1, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28692648/zebrafish-slc30a10-deficiency-revealed-a-novel-compensatory-mechanism-of-atp2c1-in-maintaining-manganese-homeostasis
#19
Zhidan Xia, Jiayu Wei, Yingniang Li, Jia Wang, Wenwen Li, Kai Wang, Xiaoli Hong, Lu Zhao, Caiyong Chen, Junxia Min, Fudi Wang
Recent studies found that mutations in the human SLC30A10 gene, which encodes a manganese (Mn) efflux transporter, are associated with hypermanganesemia with dystonia, polycythemia, and cirrhosis (HMDPC). However, the relationship between Mn metabolism and HMDPC is poorly understood, and no specific treatments are available for this disorder. Here, we generated two zebrafish slc30a10 mutant lines using the CRISPR/Cas9 system. Compared to wild-type animals, mutant adult animals developed significantly higher systemic Mn levels, and Mn accumulated in the brain and liver of mutant embryos in response to exogenous Mn...
July 10, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28690161/ultrasound-targeted-cns-gene-delivery-for-parkinson-s-disease-treatment
#20
REVIEW
Ching-Hsiang Fan, Chung-Yin Lin, Hao-Li Liu, Chih-Kuang Yeh
Parkinson's disease (PD) is a potent neurodegenerative disease in which a progressive loss of dopaminergic neurons eventually produces a loss of movement control and other symptoms. To date, in addition to pharmacological, non-pharmacological, and neurosurgical therapies, gene delivery has emerged as a potential therapeutic modality for PD. Effective targeted gene delivery is complicated in that gene vectors cannot penetrate the blood-brain barrier (BBB), thus clinical tests must rely on invasive intracerebral gene vector injection...
July 8, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
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