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Neurotransmitters and behavior

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https://www.readbyqxmd.com/read/27913309/sequence-determinants-of-the-caenhorhabditis-elegansdopamine-transporter-dictating-in-vivoaxonal-export-and-synaptic-localization
#1
Sarah B Robinson, J Andrew Hardaway, Shannon L Hardie, Jane Wright, Ryan M Glynn, Daniel P Bermingham, Qiao Han, Sarah M Sturgeon, Phyllis Freeman, Randy D Blakely
The monoamine neurotransmitter dopamine (DA) acts across phylogeny to modulate both simple and complex behaviors. The presynaptic DA transporter (DAT) is a major determinant of DA signaling capacity in ensuring efficient extracellular DA clearance. In humans, DAT is also a major target for prescribed and abused psychostimulants. Multiple structural determinants of DAT function and regulation have been defined, though largely these findings have arisen from heterologous expression or ex vivo cell culture studies...
November 29, 2016: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/27913020/influences-of-combined-traffic-noise-on-anxiety-in-mice
#2
Guoqing Di, Yaqian Xu
With the rapid development of traffic facilities in China, traffic noise pollution is increasingly prominent. This research aims to explore the influences of combined traffic noise on receptors' anxiety. Institute of cancer research mice were exposed to combined traffic noise (CTN) from highway and high-speed railway for 52days, whose day-night equivalent continuous A-weighted sound pressure level (Ldn) was 70dB(A). The impacts of CTN on anxiety were explored by behavior tests and monoamine neurotransmitter assays...
November 29, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27912874/the-anxiolytic-effect-of-essential-oil-of-cananga-odorata-exposure-on-mice-and-determination-of-its-major-active-constituents
#3
Nan Zhang, Lei Zhang, Linyin Feng, Lei Yao
BACKGROUND: Essential oil from Cananga odorata (ylang-ylang essential oil, YYO) is usually used in reducing blood pressure, improving cognitive functioning in aromatherapy in human. Few reports showed its effect on anxiety behaviors. HYPOTHESIS/PURPOSE: To investigate the anxiolytic effects of YYO exposure on anxiety animal models, determine the major active constituents and investigate the change of neurotransmitters after odor exposure. STUDY DESIGN AND METHODS: ICR mice were subjected to three anxiety models including open field, elevated plus maze and light-dark box tests after acute and chronic YYO exposure...
December 15, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/27911748/actions-of-steroids-new-neurotransmitters
#4
Lauren M Rudolph, Charlotte A Cornil, Melinda A Mittelman-Smith, Jennifer R Rainville, Luke Remage-Healey, Kevin Sinchak, Paul E Micevych
Over the past two decades, the classical understanding of steroid action has been updated to include rapid, membrane-initiated, neurotransmitter-like functions. While steroids were known to function on very short time spans to induce physiological and behavioral changes, the mechanisms by which these changes occur are now becoming more clear. In avian systems, rapid estradiol effects can be mediated via local alterations in aromatase activity, which precisely regulates the temporal and spatial availability of estrogens...
November 9, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27909101/changes-in-properties-of-auditory-nerve-synapses-following-conductive-hearing-loss
#5
Xiaowen Zhuang, Wei Sun, Matthew A Xu-Friedman
: Auditory activity plays an important role in the development of the auditory system. Decreased activity can result from conductive hearing loss (CHL) associated with otitis media, which may lead to long-term perceptual deficits. The effects of CHL have been mainly studied at later stages of the auditory pathway, but early stages remain less examined. However, changes in early stages could be important, because they would affect how information about sounds is conveyed to higher order areas for further processing and localization...
December 1, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27904490/antidepressant-effect-of-electroacupuncture-regulates-signal-targeting-in-the-brain-and-increases-brain-derived-neurotrophic-factor-levels
#6
Dong-Mei Duan, Ya Tu, Ping Liu, Shuang Jiao
Electroacupuncture improves depressive behavior faster and with fewer adverse effects than antidepressant medication. However, the antidepressant mechanism of electroacupuncture remains poorly understood. Here, we established a rat model of chronic unpredicted mild stress, and then treated these rats with electroacupuncture at Yintang (EX-HN3) and Baihui (DU20) with sparse waves at 2 Hz and 0.6 mA for 30 minutes, once a day. We found increased horizontal and vertical activity, and decreased immobility time, at 2 and 4 weeks after treatment...
October 2016: Neural Regeneration Research
https://www.readbyqxmd.com/read/27896310/preservation-of-essential-odor-guided-behaviors-and-odor-based-reversal-learning-after-targeting-adult-brain-serotonin-synthesis
#7
Kaitlin S Carlson, Meredith S Whitney, Marie A Gadziola, Evan S Deneris, Daniel W Wesson
The neurotransmitter serotonin (5-HT) is considered a powerful modulator of sensory system organization and function in a wide range of animals. The olfactory system is innervated by midbrain 5-HT neurons into both its primary and secondary odor-processing stages. Facilitated by this circuitry, 5-HT and its receptors modulate olfactory system function, including odor information input to the olfactory bulb. It is unknown, however, whether the olfactory system requires 5-HT for even its most basic behavioral functions...
September 2016: ENeuro
https://www.readbyqxmd.com/read/27891077/presynaptic-g-protein-coupled-receptors-gatekeepers-of-addiction
#8
REVIEW
Kari A Johnson, David M Lovinger
Drug abuse and addiction cause widespread social and public health problems, and the neurobiology underlying drug actions and drug use and abuse is an area of intensive research. Drugs of abuse alter synaptic transmission, and these actions contribute to acute intoxication as well as the chronic effects of abused substances. Transmission at most mammalian synapses involves neurotransmitter activation of two receptor subtypes, ligand-gated ion channels that mediate fast synaptic responses and G protein-coupled receptors (GPCRs) that have slower neuromodulatory actions...
2016: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/27888110/tubby-domain-superfamily-protein-is-required-for-the-formation-of-the-7s-snare-complex-in-drosophila
#9
Eun Jang Yoon, Yong Taek Jeong, Ji Eun Lee, Seok Jun Moon, Chul Hoon Kim
Tubby domain superfamily protein (TUSP) is a distant member of the Tubby-like protein (TULP) family. Although other TULPs play important roles in sensation, metabolism, and development, the molecular functions of TUSP are completely unknown. Here, we explore the function of TUSP in the Drosophila nervous system where it is expressed in all neurons. Tusp mutant flies exhibit a temperature-sensitive paralysis. This paralysis can be rescued by tissue-specific expression of Tusp in the giant fibers and peripherally synapsing interneurons of the giant fiber system, a well-characterized neuronal circuit that mediates rapid escape behavior in flies...
November 22, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27885575/administration-of-huperzia-quadrifariata-extract-a-cholinesterase-inhibitory-alkaloid-mixture-has-neuroprotective-effects-in-a-rat-model-of-cerebral-hypoxia-ischemia
#10
F K Odorcyk, E F Sanches, F C Nicola, J Moraes, L F Pettenuzzo, J Kolling, C Siebert, A Longoni, E L Konrath, A Wyse, C A Netto
Neonatal hypoxia-ischemia (HI) is an etiologic component of several neurologic pathologies associated to cognitive impairment. The mechanisms involved in HI-induced tissue damage start immediately after HI and extend for days. Acetylcholine is an important neurotransmitter in the central nervous system and exerts a protector effect on tissue damage by modulating inflammation, and cholinesterase inhibitors have shown neuroprotective properties and their action are often attributed to inhibition of the immune response...
November 24, 2016: Neurochemical Research
https://www.readbyqxmd.com/read/27882998/dopamine-and-opioid-neurotransmission-in-behavioral-addictions-a-comparative-pet-study-in-pathological-gambling-and-binge-eating
#11
Joonas Majuri, Juho Joutsa, Jarkko Johansson, Valerie Voon, Kati Alakurtti, Riitta Parkkola, Tuuli Lahti, Hannu Alho, Jussi Hirvonen, Eveliina Arponen, Sarita Forsback, Valtteri Kaasinen
Although behavioral addictions share many clinical features with drug addictions, they show strikingly large variation in their behavioral phenotypes (such as in uncontrollable gambling or eating). Neurotransmitter function in behavioral addictions is poorly understood but has important implications in understanding its relationship with substance use disorders and underlying mechanisms of therapeutic efficacy. Here, we compare opioid and dopamine function between two behavioral addiction phenotypes: pathological gambling (PG) and binge eating disorder (BED)...
November 24, 2016: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27870896/m30-antagonizes-indoleamine-2-3-dioxygenase-activation-and-neurodegeneration-induced-by-corticosterone-in-the-hippocampus
#12
Chun-Sing Lam, George Lim Tipoe, Johnny Kong-Ching Wong, Moussa B H Youdim, Man-Lung Fung
Monoamine oxidases (MAO), downstream targets of glucocorticoid, maintain the turnover and homeostasis of monoamine neurotransmitters; yet, its pathophysiological role in monoamine deficiency, oxidative stress and neuroinflammation remains controversial. Protective effects of M30, a brain selective MAO inhibitor with iron-chelating antioxidant properties, have been shown in models of neurodegenerative diseases. This study aims to examine the neuroprotective mechanism of M30 against depressive-like behavior induced by corticosterone (CORT)...
2016: PloS One
https://www.readbyqxmd.com/read/27870427/understanding-the-broad-influence-of-sex-hormones-and-sex-differences-in-the-brain
#13
REVIEW
Bruce S McEwen, Teresa A Milner
Sex hormones act throughout the entire brain of both males and females via both genomic and nongenomic receptors. Sex hormones can act through many cellular and molecular processes that alter structure and function of neural systems and influence behavior as well as providing neuroprotection. Within neurons, sex hormone receptors are found in nuclei and are also located near membranes, where they are associated with presynaptic terminals, mitochondria, spine apparatus, and postsynaptic densities. Sex hormone receptors also are found in glial cells...
January 2, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/27866934/pharmacodynamic-action-and-mechanism-of-du-liang-soft-capsule-a-traditional-chinese-medicine-capsule-on-treating-nitroglycerin-induced-migraine
#14
Min Hou, Qing Tang, Qiang Xue, Xiaona Zhang, Yang Liu, Sheng Yang, Liechun Chen, Xiaoyu Xu
ETHNOPHARMACOLOGICAL RELEVANCE: Du Liang soft capsule (DL) is a traditional Chinese medicine for treating migraines; it is made from two Chinese herbs, including Ligusticum striatum DC., root; Angelica dahurica (Hoffm.) Benth. & Hook.f. ex Franch. & Sav., root. AIM OF THE STUDY: In the present study, we aimed to elucidate the pharmacodynamic action of DL and its mechanism in an animal model of migraines induced by glyceryl trinitrate (GTN). MATERIALS AND METHODS: Sixty rats were randomly divided into six groups, including a normal control group, model control group, positive group (Sumatriptan 0...
November 17, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27866798/long-distance-descending-spinal-neurons-ensure-quadrupedal-locomotor-stability
#15
Ludwig Ruder, Aya Takeoka, Silvia Arber
Locomotion is an essential animal behavior used for translocation. The spinal cord acts as key executing center, but how it coordinates many body parts located across distance remains poorly understood. Here we employed mouse genetic and viral approaches to reveal organizational principles of long-projecting spinal circuits and their role in quadrupedal locomotion. Using neurotransmitter identity, developmental origin, and projection patterns as criteria, we uncover that spinal segments controlling forelimbs and hindlimbs are bidirectionally connected by symmetrically organized direct synaptic pathways that encompass multiple genetically tractable neuronal subpopulations...
November 16, 2016: Neuron
https://www.readbyqxmd.com/read/27865151/effects-of-the-benzodiazepine-gabaa-%C3%AE-1-preferring-antagonist-3-isopropoxy-%C3%AE-carboline-hydrochloride-3-isopbc-on-alcohol-seeking-and-self-administration-in-baboons
#16
August F Holtyn, V V N Phani Babu Tiruveedhula, Michael Rajesh Stephen, James M Cook, Elise M Weerts
BACKGROUND: The major inhibitory neurotransmitter, gamma-aminobutyric acid (GABA), modulates many of the behavioral effects of alcohol, including sedation, tolerance, and withdrawal. The α1 subunit of the benzodiazepine GABAA receptor is the most widely expressed alpha subunit in the brain, and has been implicated in the reinforcing- and abuse-related effects of alcohol. The aim of the present study was to examine whether treatment with a benzodiazepine GABAA α1-preferring ligand, 3-isopropoxy-β-carboline hydrochloride (3-ISOPBC), selectively decreases alcohol seeking and consumption...
November 4, 2016: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/27855736/glutamate-is-a-wake-active-neurotransmitter-in-drosophila-melanogaster
#17
John E Zimmerman, May T Chan, Olivia T Lenz, Brendan T Keenan, Greg Maislin, Allan I Pack
STUDY OBJECTIVES: In mammals, there is evidence that glutamate has a role as a wake active neurotransmitter. So using video-based analysis of Drosophila behavior we undertook a study to examine if glutamate, which has been previously shown to have an excitatory role in neuromuscular junctions in Drosophila, may have a conserved wake-active role in the adult brain. METHODS: Using 6-9 day old female flies we examined the effect of perturbations of the glutamatergic signaling on total wakefulness and wake bout architecture...
October 28, 2016: Sleep
https://www.readbyqxmd.com/read/27852785/dorsolateral-prefrontal-cortex-gaba-concentration-in-humans-predicts-working-memory-load-processing-capacity
#18
Jong H Yoon, Anthony Grandelis, Richard J Maddock
: The discovery of neural mechanisms of working memory (WM) would significantly enhance our understanding of complex human behaviors and guide treatment development for WM-related impairments found in neuropsychiatric conditions and aging. Although the dorsolateral prefrontal cortex (DLPFC) has long been considered critical for WM, we still know little about the neural elements and pathways within the DLPFC that support WM in humans. In this study, we tested whether an individual's DLPFC gamma-aminobutryic acid (GABA) content predicts individual differences in WM task performance using a novel behavioral approach...
November 16, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27846759/rationally-subdividing-the-fly-nervous-system-with-versatile-expression-reagents
#19
J H Simpson
The ability to image and manipulate specific cell populations in Drosophila enables the investigation of how neural circuits develop and coordinate appropriate motor behaviors. Gal4 lines give genetic access to many types of neurons, but the expression patterns of these reagents are often complex. Here, we present the generation and expression patterns of LexA lines based on the vesicular neurotransmitter transporters and Hox transcription factors. Intersections between these LexA lines and existing Gal4 collections provide a strategy for rationally subdividing complex expression patterns based on neurotransmitter or segmental identity...
November 15, 2016: Journal of Neurogenetics
https://www.readbyqxmd.com/read/27836462/clock-genes-adhd-and-aggression
#20
REVIEW
Floriana Mogavero, Amanda Jager, Jeffrey C Glennon
Attention deficit/hyperactivity disorder (ADHD) is frequently associated with comorbid aggression and sleep disturbances. The sleep/wake cycle is under the control of the circadian system which is moderated by clock genes. Clock genes can regulate the transcription of monoamine oxidase A, which is involved in the degradation of monoamines. Disturbances in monoamine interaction with clock genes in those with monoamine gene polymorphisms may regulate susceptibility of ADHD and comorbid aggression/sleep disturbances...
November 8, 2016: Neuroscience and Biobehavioral Reviews
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