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Parkinson histamine

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https://www.readbyqxmd.com/read/27881066/new-insights-emerging-from-recent-investigations-on-human-group-ii-pyridoxal-5-phosphate-decarboxylases
#1
Alessandro Paiardini, Giorgio Giardina, Giada Rossignoli, Carla Borri Voltattorni, Mariarita Bertoldi
Aromatic amino acid, cysteine sulfinic acid, glutamate and histidine decarboxylases, belonging to group II of pyridoxal 5'-phosphate-dependent enzymes, catalyze the synthesis of dopamine/serotonin, hypotaurine, ϒ-aminobutyric acid and histamine, respectively. Considering that these reaction's products are all essential bioactive molecules, group II decarboxylases have been long studied from an evolutionary, biochemical and pharmacological standpoint. Despite the fact that they all belong to a common fold-type, during evolution each decarboxylase has evolved unique structural elements responsible for its substrate specificity...
November 22, 2016: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/27837280/thr105ile-rs11558538-polymorphism-in-the-histamine-1-methyl-transferase-hnmt-gene-and-risk-for-restless-legs-syndrome
#2
Félix Javier Jiménez-Jiménez, Elena García-Martín, Hortensia Alonso-Navarro, Carmen Martínez, Martín Zurdo, Laura Turpín-Fenoll, Jorge Millán-Pascual, Teresa Adeva-Bartolomé, Esther Cubo, Francisco Navacerrada, Ana Rojo-Sebastián, Lluisa Rubio, Sara Ortega-Cubero, Pau Pastor, Marisol Calleja, José Francisco Plaza-Nieto, Belén Pilo-de-la-Fuente, Margarita Arroyo-Solera, Esteban García-Albea, José A G Agúndez
A recent meta-analysis suggests an association between the rs11558538 single nucleotide polymorphism in the histamine-N-methyl-transferase (HNMT) gene and the risk for Parkinson's disease. Based on the possible relationship between PD and restless legs syndrome (RLS), we tried to establish whether rs11558538 SNP is associated with the risk for RLS. We studied the genotype and allelic variant frequencies of HNMT rs11558538 SNP 205 RLS patients and 410 healthy controls using a TaqMan assay. The frequencies of the HNMT rs11558538 genotypes allelic variants were similar between RLS patients and controls, and were not influenced by gender, family history of RLS, or RLS severity...
November 11, 2016: Journal of Neural Transmission
https://www.readbyqxmd.com/read/27836486/immunochemical-localization-of-vesicular-monoamine-transporter-2-vmat2-in-mouse-brain
#3
Rachel A Cliburn, Amy R Dunn, Kristen A Stout, Carlie A Hoffman, Kelly M Lohr, Alison I Bernstein, Emily J Winokur, James Burkett, Yvonne Shmitz, William M Caudle, Gary W Miller
Vesicular monoamine transporter 2 (VMAT2, SLC18A2) is a transmembrane transporter protein that packages dopamine, serotonin, norepinephrine, and histamine into vesicles in preparation for neurotransmitter release from the presynaptic neuron. VMAT2 function and related vesicle dynamics have been linked to susceptibility to oxidative stress, exogenous toxicants, and Parkinson's disease. To address a recent depletion of commonly used antibodies to VMAT2, we generated and characterized a novel rabbit polyclonal antibody generated against a 19 amino acid epitope corresponding to an antigenic sequence within the C-terminal tail of mouse VMAT2...
November 8, 2016: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/27563055/the-histamine-h3-receptor-structure-pharmacology-and-function
#4
Gustavo Nieto-Alamilla, Ricardo Márquez-Gómez, Ana-Maricela García-Gálvez, Guadalupe-Elide Morales-Figueroa, José-Antonio Arias-Montaño
Among the four G protein-coupled receptors (H1-H4) identified as mediators of the biologic effects of histamine, the H3 receptor (H3R) is distinguished for its almost exclusive expression in the nervous system and the large variety of isoforms generated by alternative splicing of the corresponding mRNA. Additionally, it exhibits dual functionality as autoreceptor and heteroreceptor, and this enables H3Rs to modulate the histaminergic and other neurotransmitter systems. The cloning of the H3R cDNA in 1999 by Lovenberg et al...
November 2016: Molecular Pharmacology
https://www.readbyqxmd.com/read/27539857/a-novel-developmental-role-for-dopaminergic-signaling-to-specify-hypothalamic-neurotransmitter-identity
#5
Yu-Chia Chen, Svetlana Semenova, Stanislav Rozov, Maria Sundvik, Joshua L Bonkowsky, Pertti Panula
Hypothalamic neurons expressing histamine and orexin/hypocretin (hcrt) are necessary for normal regulation of wakefulness. In Parkinson's disease, the loss of dopaminergic neurons is associated with elevated histamine levels and disrupted sleep/wake cycles, but the mechanism is not understood. To characterize the role of dopamine in the development of histamine neurons, we inhibited the translation of the two non-allelic forms of tyrosine hydroxylase (th1 and th2) in zebrafish larvae. We found that dopamine levels were reduced in both th1 and th2 knockdown, but the serotonin level and number of serotonin neurons remained unchanged...
October 14, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27399132/thr105ile-rs11558538-polymorphism-in-the-histamine-n-methyltransferase-hnmt-gene-and-risk-for-parkinson-disease-a-prisma-compliant-systematic-review-and-meta-analysis
#6
Félix Javier Jiménez-Jiménez, Hortensia Alonso-Navarro, Elena García-Martín, José A G Agúndez
BACKGROUND/AIMS: Several neuropathological, biochemical, and pharmacological data suggested a possible role of histamine in the etiopathogenesis of Parkinson disease (PD). The single nucleotide polymorphism (SNP) rs11558538 in the histamine N-methyltransferase (HNMT) gene has been associated with the risk of developing PD by several studies but not by some others. We carried out a systematic review that included all the studies published on PD risk related to the rs11558538 SNP, and we conducted a meta-analysis following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines...
July 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27260166/histamine-induces-microglia-activation-and-dopaminergic-neuronal-toxicity-via-h1-receptor-activation
#7
Sandra M Rocha, Tatiana Saraiva, Ana C Cristóvão, Raquel Ferreira, Tiago Santos, Marta Esteves, Cláudia Saraiva, Goun Je, Luísa Cortes, Jorge Valero, Gilberto Alves, Alexander Klibanov, Yoon-Seong Kim, Liliana Bernardino
BACKGROUND: Histamine is an amine widely known as a peripheral inflammatory mediator and as a neurotransmitter in the central nervous system. Recently, it has been suggested that histamine acts as an innate modulator of microglial activity. Herein, we aimed to disclose the role of histamine in microglial phagocytic activity and reactive oxygen species (ROS) production and to explore the consequences of histamine-induced neuroinflammation in dopaminergic (DA) neuronal survival. METHODS: The effect of histamine on phagocytosis was assessed both in vitro by using a murine N9 microglial cell line and primary microglial cell cultures and in vivo...
2016: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/27190492/histamine-and-immune-biomarkers-in-cns-disorders
#8
REVIEW
Ramón Cacabelos, Clara Torrellas, Lucía Fernández-Novoa, Francisco López-Muñoz
Neuroimmune dysregulation is a common phenomenon in different forms of central nervous system (CNS) disorders. Cross-links between central and peripheral immune mechanisms appear to be disrupted as reflected by a series of immune markers (CD3, CD4, CD7, HLA-DR, CD25, CD28, and CD56) which show variability in brain disorders such as anxiety, depression, psychosis, stroke, Alzheimer's disease, Parkinson's disease, attention-deficit hyperactivity disorder, migraine, epilepsy, vascular dementia, mental retardation, cerebrovascular encephalopathy, multiple sclerosis, brain tumors, cranial nerve neuropathies, mental retardation, and posttraumatic brain injury...
2016: Mediators of Inflammation
https://www.readbyqxmd.com/read/27145922/meclizine-induced-enhanced-glycolysis-is-neuroprotective-in-parkinson-disease-cell-models
#9
Chien Tai Hong, Kai-Yin Chau, Anthony H V Schapira
Meclizine is a well-tolerated drug routinely used as an anti-histamine agent in the management of disequilibrium. Recently, meclizine has been assessed for its neuroprotective properties in ischemic stroke and Huntington disease models. We found that meclizine protected against 6-hydroxydopamine-induced apoptosis and cell death in both SH-SY5Y cells and rat primary cortical cultures. Meclizine increases the level of 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 3 (PFKFB3), which activates phosphofructokinase, a rate-determining enzyme of glycolysis...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27092049/trace-amines-and-the-trace-amine-associated-receptor-1-pharmacology-neurochemistry-and-clinical-implications
#10
REVIEW
Yue Pei, Aman Asif-Malik, Juan J Canales
Biogenic amines are a collection of endogenous molecules that play pivotal roles as neurotransmitters and hormones. In addition to the "classical" biogenic amines resulting from decarboxylation of aromatic acids, including dopamine (DA), norepinephrine, epinephrine, serotonin (5-HT), and histamine, other biogenic amines, present at much lower concentrations in the central nervous system (CNS), and hence referred to as "trace" amines (TAs), are now recognized to play significant neurophysiological and behavioral functions...
2016: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/26648474/neuroimmune-crosstalk-in-cns-disorders-the-histamine-connection
#11
Ramón Cacabelos, Clara Torrellas, Lucía Fernández-Novoa, Gjumrakch Aliev
The neuroimmune system represents a dense network of biochemical signals associated with neurotransmitters, neuropeptides, neurohormones, cytokines, chemokines, and growth factors synthesized in neurons, glial cells and immune cells, to maintain systemic homeostasis. Endogenous and/or exogenous, noxious stimuli in any tissue are captured by sensor cells to inform the brain; likewise, signals originating at the central nervous system (CNS) level are transmitted to peripheral immune effectors which react to central stimuli...
2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/26551022/global-transcriptome-analysis-of-the-tentacle-of-the-jellyfish-cyanea-capillata-using-deep-sequencing-and-expressed-sequence-tags-insight-into-the-toxin-and-degenerative-disease-related-transcripts
#12
Guoyan Liu, Yonghong Zhou, Dan Liu, Qianqian Wang, Zengliang Ruan, Qian He, Liming Zhang
BACKGROUND: Jellyfish contain diverse toxins and other bioactive components. However, large-scale identification of novel toxins and bioactive components from jellyfish has been hampered by the low efficiency of traditional isolation and purification methods. RESULTS: We performed de novo transcriptome sequencing of the tentacle tissue of the jellyfish Cyanea capillata. A total of 51,304,108 reads were obtained and assembled into 50,536 unigenes. Of these, 21,357 unigenes had homologues in public databases, but the remaining unigenes had no significant matches due to the limited sequence information available and species-specific novel sequences...
2015: PloS One
https://www.readbyqxmd.com/read/26408888/conformational-analysis-and-geometry-optimization-of-apomorphine-as-an-anti-parkinsonian-agen
#13
Huma Ikram, Khalida Bano, Muhammad Jameel, Muhammad Azhar, Kiran Saeed, Muhammad Sufian
Apomorphine, a dopamine D₁/D₂agonist, is an important drug of choice for the treatment of Parkinson's and related disorders. The present study was designed to perform the conformational analysis and geometry optimization of apomorphine. Resultant optimized structure corresponds to a substance as it is found in nature. This could be used for a variety of experimental and theoretical investigations especially in the field of pharmacokinetics. The results indicate that the best conformation of the molecule is present at minimum potential energy -88702...
September 2015: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/26369813/a-recent-perspective-on-discovery-and-development-of-diverse-therapeutic-agents-inspired-from-isatin-alkaloids
#14
REVIEW
Rajesh A Rane, Sivanandhan Karunanidhi, Kavita Jain, Mahamadhanif Shaikh, Girish Hampannavar, Rajshekhar Karpoormath
Isatin as an alkaloidal framework have consistently attracted attention of medicinal chemist towards development of wide range of novel therapeutic agents. This review report has discussed significant isatin lead molecules and their derivatives which have shown promising biological potential in recent times. The substituted isatins showing a potent pharmacological activities such as antimicrobial, antitubercular, anticancer, antioxidant, anti-histaminic, anti-HIV, antiviral, anti-inflammatory, anti-Parkinson's and antidiabetic have been described in this review...
2016: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/26275849/histamine-and-the-striatum
#15
REVIEW
J Paul Bolam, Tommas J Ellender
The neuromodulator histamine is released throughout the brain during periods of wakefulness. Combined with an abundant expression of histamine receptors, this suggests potential widespread histaminergic control of neural circuit activity. However, the effect of histamine on many of these circuits is unknown. In this review we will discuss recent evidence for histaminergic modulation of the basal ganglia circuitry, and specifically its main input nucleus; the striatum. Furthermore, we will discuss recent findings of histaminergic dysfunction in several basal ganglia disorders, including in Parkinson's disease and most prominently, in Tourette's syndrome, which has led to a resurgence of interest in this neuromodulator...
July 2016: Neuropharmacology
https://www.readbyqxmd.com/read/26100750/interactions-of-the-histamine-and-hypocretin-systems-in-cns-disorders
#16
REVIEW
Ling Shan, Yves Dauvilliers, Jerome M Siegel
Histamine and hypocretin neurons are localized to the hypothalamus, a brain area critical to autonomic function and sleep. Narcolepsy type 1, also known as narcolepsy with cataplexy, is a neurological disorder characterized by excessive daytime sleepiness, impaired night-time sleep, cataplexy, sleep paralysis and short latency to rapid eye movement (REM) sleep after sleep onset. In narcolepsy, 90% of hypocretin neurons are lost; in addition, two groups reported in 2014 that the number of histamine neurons is increased by 64% or more in human patients with narcolepsy, suggesting involvement of histamine in the aetiology of this disorder...
July 2015: Nature Reviews. Neurology
https://www.readbyqxmd.com/read/25768024/association-of-histamine-n-methyltransferase-thr105ile-polymorphism-with-parkinson-s-disease-and-schizophrenia-in-han-chinese-a-case-control-study
#17
Xinglong Yang, Chuanxin Liu, Jinxiang Zhang, Hongying Han, Xiuyan Wang, Zhoulin Liu, Yanming Xu
Parkinson's disease (PD) and schizophrenia (SCZ) are frequent central nervous disorders that have unclear etiologies but that show similarities in their pathogenesis. Since elevated histamine levels in the brain have been associated with PD and SCZ, we wanted to explore whether the Thr105Ile substitution in the histamine N-methyltransferase gene (HNMT-Thr105Ile), which impairs histamine degradation, is associated with either disease. We used the ligase detection reaction to genotype a case-control cohort of Han Chinese patients with PD or SCZ and healthy controls at the HNMT-Thr105Ile locus...
2015: PloS One
https://www.readbyqxmd.com/read/25714965/new-kid-on-the-block-does-histamine-get-along-with-inflammation-in-amyotrophic-lateral-sclerosis
#18
REVIEW
Cinzia Volonté, Chiara Parisi, Savina Apolloni
Results from amyotrophic lateral sclerosis (ALS) patients and pre-clinical studies strongly suggest that systemic and CNS-intrinsic immune activation plays a central role in ALS pathogenesis. Microglial cells are emerging in this context as master regulators with a bi-functional role in the progression of the pathological response. They foster a pro-inflammatory setting through the production of cytotoxic cytokines and chemokines (M1 phenotype), after an aborted effort to sustain an anti-inflammatory environment for motor neurons through the release of beneficial cytokines and growth factors (M2 phenotype)...
2015: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/25661301/enhanced-histamine-h2-excitation-of-striatal-cholinergic-interneurons-in-l-dopa-induced-dyskinesia
#19
Sean Austin O Lim, Rong Xia, Yunmin Ding, Lisa Won, William J Ray, Stephen A Hitchcock, Daniel S McGehee, Un Jung Kang
Levodopa is the most effective therapy for the motor deficits of Parkinson's disease (PD), but long term treatment leads to the development of L-DOPA-induced dyskinesia (LID). Our previous studies indicate enhanced excitability of striatal cholinergic interneurons (ChIs) in mice expressing LID and reduction of LID when ChIs are selectively ablated. Recent gene expression analysis indicates that stimulatory H2 histamine receptors are preferentially expressed on ChIs at high levels in the striatum, and we tested whether a change in H2 receptor function might contribute to the elevated excitability in LID...
April 2015: Neurobiology of Disease
https://www.readbyqxmd.com/read/25575625/the-human-histaminergic-system-in-neuropsychiatric-disorders
#20
REVIEW
Ling Shan, Ai-Min Bao, Dick F Swaab
Histaminergic neurons are exclusively located in the hypothalamic tuberomamillary nucleus, from where they project to many brain areas. The histaminergic system is involved in basic physiological functions, such as the sleep-wake cycle, energy and endocrine homeostasis, sensory and motor functions, cognition, and attention, which are all severely affected in neuropsychiatric disorders. Here, we present recent postmortem findings on the alterations in this system in neuropsychiatric disorders, including Parkinson's disease (PD), Alzheimer's disease (AD), Huntington's disease (HD), depression, and narcolepsy...
March 2015: Trends in Neurosciences
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