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https://www.readbyqxmd.com/read/28230263/recent-advances-in-%C3%AE-aminobutyric-acid-gaba-properties-in-pulses-an-overview
#1
REVIEW
Nooshin Nikmaram, B N Dar, Shahin Roohinejad, Mohamed Koubaa, Francisco J Barba, Greiner Ralf, Stuart K Johnson
Beans, peas, and lentils are all types of pulses that are extensively used as foods around the world due to their beneficial effects on human health including their low glycemic index, cholesterol lowering effects, ability to decrease the risk of heart diseases and their protective effects against some cancers. These health benefits are a result of their components such as bioactive proteins, dietary fibers, slowly digested starches, minerals and vitamins, and bioactive compounds. Among these bioactive compounds, γ-aminobutyric acid (GABA), a non-proteinogenic amino acid with numerous reported health benefits (e...
February 23, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28230107/regulation-of-visual-wulst-cell-responsiveness-by-imprinting-causes-stimulus-specific-activation-of-rostral-cells
#2
Tomoharu Nakamori, Tomomi Kato, Hiroyuki Sakagami, Kohichi Tanaka, Hiroko Ohki-Hamazaki
Imprinting behaviour in chicks can be induced exclusively during a short period after hatching. During this period, visual information on the imprinting stimulus is conveyed to the visual Wulst (VW) in the telencephalon, which corresponds to the visual cortex of mammals, and then to the memory-storing region known as the intermediate medial mesopallium. These two regions are indispensable for imprinting. We previously showed that imprinting training altered the response pattern of the VW to the imprinting stimulus; however, the precise distribution of cells and the mechanism involved with this altered response remains unclear...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28229088/glutathione-induces-gaba-release-through-p2x7r-activation-on-m%C3%A3-ller-glia
#3
Hércules Rezende Freitas, Ricardo A de Melo Reis
The retinal tissue of warm-blooded vertebrates performs surprisingly complex and accurate transduction of visual information. To achieve precision, a multilayered neuroglia structure is established throughout the embryonic development, and the presence of radial Müller (glial) cells ensure differentiation, growth and survival for the neuronal elements within retinal environment. It is assumed that Müller cells serve as a dynamic reservoir of progenitors, capable of expressing transcription factors, differentiating and proliferating as either neuronal or glial cells depending on extrinsic cues...
2017: Neurogenesis (Austin, Tex.)
https://www.readbyqxmd.com/read/28228068/stress-in-gastrointestinal-tract-and-stable-gastric-pentadecapeptide-bpc-157-finally-do-we-have-a-solution
#4
Predrag Sikiric, Sven Seiwerth, Rudolf Rucman, Domagoj Drmic, Mirjana Stupnisek, Antonio Kokot, Marko Sever, Ivan Zoricic, Zoran Zoricic, Lovorka Batelja, Tihomil Ziger, Josipa Vlainic, Zarko Rasic, Martina Lovric Bencic
Selye's syndrome produced by diverse nocuous agents and "response to damage as such" means Selye's stress triad in stress coping response to reestablish homeostasis. Logically, from the gastrointestinal tract viewpoint, such organoprotective/healing response implies the angiogenic growth factors that commonly signify the healing. Thereby, the gastric pentadecapeptide BPC 157-organoprotection (huge range of beneficial effects) signifies the Selye's stress concept/stress coping response implemented in and from gastrointestinal tract, and BPC 157 as an integrative mediator that integrates the adaptive bodily response to stress...
February 20, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28227907/understanding-the-role-of-astrocytic-gaba-in-simulated-neural-networks
#5
Kerstin Lenk, Eero Raisanen, Jari A K Hyttinen, Kerstin Lenk, Eero Raisanen, Jari A K Hyttinen, Kerstin Lenk, Jari Ak Hyttinen, Eero Raisanen
Astrocytes actively influence the behavior of the surrounding neuronal network including changes of the synaptic plasticity and neuronal excitability. These dynamics are altered in diseases like Alzheimer's, where the release of the gliotransmitter GABA is increased by affected, so called reactive astrocytes. In this paper, we aim to simulate a neural network with altered astrocytic GABA release. Therefore, we use our developed neuron-astrocyte model, called INEXA, which includes astrocyte controlled tripartite synapses and the astrocyte-astrocyte interaction...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225164/effects-of-focal-brain-cooling-on-extracellular-concentrations-of-neurotransmitters-in-patients-with-epilepsy
#6
Sadahiro Nomura, Takao Inoue, Hirochika Imoto, Eiichi Suehiro, Yuichi Maruta, Yuya Hirayama, Michiyasu Suzuki
OBJECTIVE: Brain hypothermia controls epileptic discharge and reduces extracellular concentrations of glutamate (Glu), an excitatory neurotransmitter. We aimed to determine the effects of focal brain cooling (FBC) on levels of γ-aminobutyric acid (GABA), which is a major inhibitory neurotransmitter. The relationship between Glu or GABA concentrations and the severity of epileptic symptoms was also analyzed. METHODS: Patients with intractable epilepsy underwent FBC at lesionectomized (n = 11) or hippocampectomized (n = 8) regions at 15°C for 30 min using custom-made cooling devices...
February 22, 2017: Epilepsia
https://www.readbyqxmd.com/read/28225041/pvn-blockade-of-p44-42-mapk-pathway-attenuates-salt-induced-hypertension-through-modulating-neurotransmitters-and-attenuating-oxidative-stress
#7
Hong-Li Gao, Xiao-Jing Yu, Kai-Li Liu, Xiao-Lian Shi, Jie Qi, Yan-Mei Chen, Yan Zhang, Juan Bai, Qiu-Yue Yi, Zhi-Peng Feng, Wen-Sheng Chen, Wei Cui, Jin-Jun Liu, Guo-Qing Zhu, Yu-Ming Kang
The imbalance of neurotransmitters and excessive oxidative stress responses contribute to the pathogenesis of hypertension. In this study, we determined whether blockade of p44/42 MAPK pathway in the hypothalamic paraventricular nucleus (PVN) ameliorates the development of hypertension through modulating neurotransmitters and attenuating oxidative stress. Dahl salt-sensitive (S) rats received a high-salt diet (HS, 8% NaCl) or a normal-salt diet (NS, 0.3% NaCl) for 6 weeks and were treated with bilateral PVN infusion of PD-98059 (0...
February 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28224477/genistein-alleviates-neuroinflammation-and-restores-cognitive-function-in-rat-model-of-hepatic-encephalopathy-underlying-mechanisms
#8
Ajaz Ahmad Ganai, Mohammad Husain
Hepatic encephalopathy (HE) is a neuropsychiatric syndrome resulting from acute liver failure. Previously, we demonstrated hepatoprotective effects of genistein in D-galactosamine (D-GalN)-induced fulminant hepatic failure (FHF). In this study, we evaluated behavioural and neuroprotective effects of genistein in rat model of HE. HE was induced by intraperitonial administration of D-GalN (250 mg/kg BW) twice a week for 30 days Genistein was given as co-treatment through oral gavage daily at dose of 5 mg/kg BW...
February 21, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28221080/blockade-of-glutamatergic-transmission-in-the-primate-basolateral-amygdala-suppresses-active-behavior-without-altering-social-interaction
#9
Patrick A Forcelli, Laurie L Wellman, Ludise Malkova
The amygdala is an integrator of affective processing, and a key component of a network regulating social behavior. While decades of lesion studies in nonhuman primates have shown alterations in social interactions after amygdala damage, acute manipulations of the amygdala in primates have been underexplored. We recently reported (Wellman, Forcelli, Aguilar, & Malkova, 2016) that acute pharmacological inhibition of the basolateral complex of the amygdala (BLA) or the central nucleus of the amygdala increased affiliative social interactions in experimental dyads of macaques; this was achieved through microinjection of a GABA-A receptor agonist...
February 20, 2017: Behavioral Neuroscience
https://www.readbyqxmd.com/read/28221079/cue-induced-food-seeking-after-punishment-is-associated-with-increased-fos-expression-in-the-lateral-hypothalamus-and-basolateral-and-medial-amygdala
#10
Erin J Campbell, David J Barker, Helen M Nasser, Konstantin Kaganovsky, Christopher V Dayas, Nathan J Marchant
In humans, relapse to unhealthy eating habits following dieting is a significant impediment to obesity treatment. Food-associated cues are one of the main triggers of relapse to unhealthy eating during self-imposed abstinence. Here we report a behavioral method examining cue-induced relapse to food seeking following punishment-induced suppression of food taking. We trained male rats to lever press for food pellets that were delivered after a 10-s conditional stimulus (CS) (appetitive). Following training, 25% of reinforced lever presses resulted in the presentation of a compound stimulus consisting of a novel CS (aversive) and the appetitive CS followed by a pellet and footshock...
February 20, 2017: Behavioral Neuroscience
https://www.readbyqxmd.com/read/28220841/an-agrobacterium-tumefaciens-strain-with-gamma-aminobutyric-acid-transaminase-activity-shows-an-enhanced-genetic-transformation-ability-in-plants
#11
Satoko Nonaka, Tatsuhiko Someya, Sha Zhou, Mariko Takayama, Kouji Nakamura, Hiroshi Ezura
Agrobacterium tumefaciens has the unique ability to mediate inter-kingdom DNA transfer, and for this reason, it has been utilized for plant genetic engineering. To increase the transformation frequency in plant genetic engineering, we focused on gamma-aminobutyric acid (GABA), which is a negative factor in the Agrobacterium-plant interaction. Recent studies have shown contradictory results regarding the effects of GABA on vir gene expression, leading to the speculation that GABA inhibits T-DNA transfer. In this study, we examined the effect of GABA on T-DNA transfer using a tomato line with a low GABA content...
February 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28219764/gabaa-receptor-expression-and-white-matter-disruption-in-intrauterine-growth-restricted-piglets
#12
Viskasari P Kalanjati, Julie A Wixey, Stephanie M Miller, Paul B Colditz, Stella T Bjorkman
Intrauterine growth restriction (IUGR) is one of the most common causes of perinatal mortality and morbidity. White matter and neuronal injury are major pathophysiological features of the IUGR neonatal brain. GABAA (γ-aminobutyric acid type A) receptors have been shown to play a role in oligodendrocyte differentiation and proliferation in the neonatal brain and may be a key factor in white matter injury and myelination in IUGR neonates. Whether there are impairments to the GABAergic system and neuronal cytoskeleton in IUGR brain has yet to be elucidated...
February 17, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28218883/case-239-cerebrotendinous-xanthomatosis
#13
Amy C Gerrish, Suchi Gaba
History A 63-year-old man with learning difficulties presented to the Accident and Emergency Department with right ankle pain after an inversion injury and underwent plain radiography. The patient had developed normally until his teenage years, at which point he experienced cognitive regression. He experienced swallowing difficulties, tinnitus, and fecal incontinence, and he had undergone cataract surgery at the age of 20 years. He also had a small nodule on the volar surface of his right ring finger. Magnetic resonance (MR) imaging of the brain and the right ankle had been performed 3 years previously...
March 2017: Radiology
https://www.readbyqxmd.com/read/28218241/massively-augmented-hippocampal-dentate-granule-cell-activation-accompanies-epilepsy-development
#14
Christopher G Dengler, Cuiyong Yue, Hajime Takano, Douglas A Coulter
In a mouse model of temporal lobe epilepsy, multicellular calcium imaging revealed that disease emergence was accompanied by massive amplification in the normally sparse, afferent stimulation-induced activation of hippocampal dentate granule cells. Patch recordings demonstrated reductions in local inhibitory function within the dentate gyrus at time points where sparse activation was compromised. Mimicking changes in inhibitory synaptic function and transmembrane chloride regulation was sufficient to elicit the dentate gyrus circuit collapse evident during epilepsy development...
February 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28217759/frontal-gamma-aminobutyric-acid-concentrations-are-associated-with-cognitive-performance-in-older-adults
#15
Eric C Porges, Adam J Woods, Richard A E Edden, Nicolaas A J Puts, Ashley D Harris, Huaihou Chen, Amanda M Garcia, Talia R Seider, Damon G Lamb, John B Williamson, Ronald A Cohen
BACKGROUND: Gamma-aminobutyric acid (GABA), the brain's principal inhibitory neurotransmitter, has been associated with perceptual and attentional functioning. Recent application of magnetic resonance spectroscopy (MRS) provides in vivo evidence for decreasing GABA concentrations during adulthood. It is unclear, however, how age-related decrements in cerebral GABA concentrations contribute to cognitive decline, or whether previously reported declines in cerebral GABA concentrations persist during healthy aging...
January 2017: Biological Psychiatry: Cognitive Neuroscience and Neuroimaging
https://www.readbyqxmd.com/read/28216893/effects-of-insecticidal-ketones-present-in-mint-plants-on-gabaa-receptor-from-mammalian-neurons
#16
Mariela Eugenia Sánchez-Borzone, Leticia Delgado Marin, Daniel Asmed García
BACKGROUND: The genus Mentha, an important member of the Lamiaceae family, is represented by many species commonly known as mint. The insecticidal activity of Mentha oil and its main components has been tested and established against various insects/pests. Among these, the ketone monoterpenes that are most common in different Mentha species demonstrated insect toxicity, with pulegone being the most active, followed by carvone and menthone. Considering that the GABAA receptor (GABAA-R) is one of the main insecticide targets on neurons, and that pulegone would modulate the insect GABA system, it may be expected that the insecticidal properties of Mentha ketones are mediated by their interaction with this receptor...
January 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28216335/reliability-of-glutamate-and-gaba-quantification-using-proton-magnetic-resonance-spectroscopy
#17
Alia L Yasen, Jolinda Smith, Anita D Christie
The consistency and reliability of proton magnetic resonance spectroscopy ((1)H-MRS) assessments of neurotransmitter concentration has not been widely examined over multiple days. The purpose of this study was to determine the reliability of glutamate and GABA measures using a single-voxel (1)H-MRS protocol in healthy men and women. Glutamate and GABA quantitations were obtained from the primary motor cortex (M1) and the dorsolateral prefrontal cortex (DLPFC) in 13 healthy individuals across 3 data collection sessions, including a baseline (Visit 1), 2-week (Visit 2), and 2-month time point (Visit 3)...
February 16, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28214898/early-development-of-parvalbumin-somatostatin-and-cholecystokinin-expressing-neurons-in-rat-brain-following-prenatal-immune-activation-and-maternal-iron-deficiency
#18
Patricia Boksa, Ying Zhang, Dominique Nouel, Alice Wong, Tak Pan Wong
Prenatal maternal infection and maternal iron deficiency during pregnancy are 2 early environmental insults associated with increased risk for schizophrenia in offspring. Substantial evidence suggests that abnormalities in inhibitory γ-aminobutyric acid (GABA) interneuron function, especially in the parvalbumin subtype of GABA interneuron, both developmentally and in adulthood, may contribute mechanistically to cognitive deficits and psychotic symptoms in schizophrenia. This study used a rat model to test whether prenatal immune activation with lipopolysaccharide (LPS; at gestation days, GD, 15 and 16) or maternal iron deficiency (from GD2 to postnatal day P7) or the combination of both insults alters major subtypes of GABAergic interneurons (parvalbumin, somatostatin, cholecystokinin) in brain regions relevant to schizophrenia (medial and dorsolateral prefrontal cortex [PFC], hippocampal CA1 and dentate gyrus, ventral subiculum) in offspring at P14 or P28...
February 18, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28213519/an-extra-amino-acid-residue-in-transmembrane-domain-10-of-the-gaba-transporter-gat-1-is-required-for-efficient-ion-coupled-transport
#19
Oshrat Dayan, Anu Nagarajan, Raven Shah, Assaf Ben-Yona, Lucy R Forrest, Baruch I Kanner
The GABA transporter GAT-1 mediates electrogenic transport of its substrate together with sodium and chloride. It is a member of the neurotransmitter:sodium:symporters, which are crucial for synaptic transmission. Compared to all other neurotransmitter:sodium:symporters, GAT-1 and the other members of the GABA transporter subfamily, all contain an extra amino acid residue at or near a conserved glycine in transmembrane segment 10. Therefore, we studied the functional impact of deletion and replacement mutants of Gly-457, and its two adjacent residues in GAT-1...
February 17, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28213518/deficits-in-the-activity-of-presynaptic-%C3%AE-aminobutyric-acid-type-b-receptors-contribute-to-altered-neuronal-excitability-in-fragile-x-syndrome
#20
Ji-Yong Kang, Jayashree Chadchankar, Thuy N Vien, Michelle I Mighdoll, Thomas M Hyde, Robert J Mather, Tarek Z Deeb, Menelas N Pangalos, Nicholas J Brandon, John Dunlop, Stephen J Moss
The behavioral and anatomical deficits seen in Fragile X syndrome (FXS) are widely believed to result from imbalances in the relative strengths of excitatory and inhibitory neurotransmission. While modified neuronal excitability is thought to be of significance, the contribution that alterations in GABAergic inhibition play in the pathophysiology of FXS are ill-defined. Slow sustained neuronal inhibition is mediated by γ-aminobutyric acid type B (GABAB) receptors, which are heterodimeric G-protein coupled receptors constructed from R1a and R2 or R1b and R2 subunits...
February 17, 2017: Journal of Biological Chemistry
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