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street name for lysergic acid diethylamide (同)back breaker, battery-acid, dose, dot, Elvis, loony toons, Lucy in the sky with diamonds, pane, superman, window pane, Zen
any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
having the characteristics of an acid; "an acid reaction"
a unit of magnetic field strength equal to one-hundred-thousandth of an oersted
the 3rd letter of the Greek alphabet
a herd of whales

PrepTutorEJDIC

酸性の / 酸味のある,すっぱい(sour) / (言葉・態度などが)厳しい,しんらつな / 酸 / すっぱいもの / 《俗》=LSD
ガンマ(ギリシア語アルファベットの第3字Γ,γ;英語のG,gに相当)
(特に女性の)魅力的な脚,すんなりした脚

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/02/24 03:46:20」(JST)

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γ-Aminobutyric acid (/ˈɡæmə əˈmiːnoʊbjuːˈtɪrɨk ˈæsɨd/; or GABA /ˈɡæbə/) is the chief inhibitory neurotransmitter in the mammalian central nervous system. It plays the principal role in reducing neuronal excitability throughout the nervous system. In humans, GABA is also directly responsible for the regulation of muscle tone.^[2]

Although in chemical terms it is an amino acid, GABA is rarely referred to as such in the scientific or medical communities, because the term "amino acid," used without a qualifier, by convention refers to the alpha amino acids, which GABA is not, nor is it considered to be incorporated into proteins.

In spastic diplegia in humans, GABA absorption becomes impaired by nerves damaged from the condition's upper motor neuron lesion, which leads to hypertonia of the muscles signaled by those nerves that can no longer absorb GABA.

Function

Neurotransmitter

In vertebrates, GABA acts at inhibitory synapses in the brain by binding to specific transmembrane receptors in the plasma membrane of both pre- and postsynaptic neuronal processes. This binding causes the opening of ion channels to allow the flow of either negatively charged chloride ions into the cell or positively charged potassium ions out of the cell. This action results in a negative change in the transmembrane potential, usually causing hyperpolarization. Two general classes of GABA receptor are known: GABA_A in which the receptor is part of a ligand-gated ion channel complex, and GABA_B metabotropic receptors, which are G protein-coupled receptors that open or close ion channels via intermediaries (G proteins).

The production, release, action, and degradation of GABA at a stereotyped GABAergic synapse

Neurons that produce GABA as their output are called GABAergic neurons, and have chiefly inhibitory action at receptors in the adult vertebrate. Medium Spiny Cells are a typical example of inhibitory CNS GABAergic cells. In contrast, GABA exhibits both excitatory and inhibitory actions in insects, mediating muscle activation at synapses between nerves and muscle cells, and also the stimulation of certain glands.^[3] In mammals, some GABAergic neurons, such as chandelier cells, are also able to excite their glutamatergic counterparts.^[4]

GABA_A receptors are ligand-activated chloride channels; that is, when activated by GABA, they allow the flow of chloride ions across the membrane of the cell. Whether this chloride flow is excitatory/depolarizing (makes the voltage across the cell's membrane less negative), shunting (has no effect on the cell's membrane) or inhibitory/hyperpolarizing (makes the cell's membrane more negative) depends on the direction of the flow of chloride. When net chloride flows out of the cell, GABA is excitatory or depolarizing; when the net chloride flows into the cell, GABA is inhibitory or hyperpolarizing. When the net flow of chloride is close to zero, the action of GABA is shunting. Shunting inhibition has no direct effect on the membrane potential of the cell; however, it minimizes the effect of any coincident synaptic input essentially by reducing the electrical resistance of the cell's membrane (in essence, equivalent to Ohm's law). A developmental switch in the molecular machinery controlling concentration of chloride inside the cell – and, hence, the direction of this ion flow – is responsible for the changes in the functional role of GABA between the neonatal and adult stages. That is to say, GABA's role changes from excitatory to inhibitory as the brain develops into adulthood.^[5]

Brain development

While GABA is an inhibitory transmitter in the mature brain, its actions are primarily excitatory in the developing brain.^[5]^[6] The gradient of chloride is reversed in immature neurons, and its reversal potential is higher than the resting membrane potential of the cell; activation of a GABA-A receptor thus leads to efflux of Cl⁻ ions from the cell, i.e. a depolarizing current. The differential gradient of chloride in immature neurons is primarily due to the higher concentration of NKCC1 co-transporters relative to KCC2 co-transporters in immature cells. GABA itself is partially responsible for orchestrating the maturation of ion pumps.^[7] GABA-ergic interneurons mature faster in the hippocampus and the GABA signalling machinery appears earlier than glutamatergic transmission. Thus, GABA is the major excitatory neurotransmitter in many regions of the brain before the maturation of glutamatergic synapses.

However, this theory has been questioned based on results showing that in brain slices of immature mice incubated in artificial cerebrospinal fluid (ACSF) (modified in a way that takes into account the normal composition of the neuronal milieu in sucklings by adding an energy substrate alternative to glucose, beta-hydroxybutyrate) GABA action shifts from excitatory to inhibitory mode.^[8]

This effect has been later repeated when other energy substrates, pyruvate and lactate, supplemented glucose in the slices' media.^[9] Later investigations of pyruvate^[10] and lactate^[11] metabolism found that the original results were not due to energy source issues but to changes in pH resulting from the substrates acting as "weak acids". These arguments were later rebutted by further findings^[12]^[13] showing that changes in pH even greater than that caused by energy substrates do not affect the GABA-shift described in the presence of energy substrate-fortified ACSF and that the mode of action of beta-hydroxybutyrate, pyruvate and lactate (assessed by measurement NAD(P)H and oxygen utilization) was energy metabolism-related.^[14]

In the developmental stages preceding the formation of synaptic contacts, GABA is synthesized by neurons and acts both as an autocrine (acting on the same cell) and paracrine (acting on nearby cells) signalling mediator.^[15]^[16] The ganglionic eminences also contribute greatly to building up the GABAergic cortical cell population.^[17]

GABA regulates the proliferation of neural progenitor cells^[18]^[19] the migration^[20] and differentiation^[7]^[21] the elongation of neurites^[22] and the formation of synapses.^[23]

GABA also regulates the growth of embryonic and neural stem cells. GABA can inﬂuence the development of neural progenitor cells via brain-derived neurotrophic factor (BDNF) expression.^[24] GABA activates the GABA_A receptor, causing cell cycle arrest in the S-phase, limiting growth.^[25]

Beyond the nervous system

mRNA expression of the embryonic variant of the GABA-producing enzyme GAD67 in a coronal brain section of a one-day-old Wistar rat, with the highest expression in subventricular zone (svz); from Popp et al., 2009^[26]

GABAergic mechanisms have been demonstrated in various peripheral tissues and organs including, but not restricted to, the intestine, stomach, pancreas, Fallopian tube, uterus, ovary, testis, kidney, urinary bladder, lung, and liver.^[27]

In 2007, an excitatory GABAergic system was described in the airway epithelium. The system activates following exposure to allergens and may participate in the mechanisms of asthma.^[28] GABAergic systems have also been found in the testis^[29] and in the eye lens.^[30]

Structure and conformation

GABA is found mostly as a zwitterion, that is, with the carboxy group deprotonated and the amino group protonated. Its conformation depends on its environment. In the gas phase, a highly folded conformation is strongly favored because of the electrostatic attraction between the two functional groups. The stabilization is about 50 kcal/mol, according to quantum chemistry calculations. In the solid state, a more extended conformation is found, with a trans conformation at the amino end and a gauche conformation at the carboxyl end. This is due to the packing interactions with the neighboring molecules. In solution, five different conformations, some folded and some extended, are found as a result of solvation effects. The conformational flexibility of GABA is important for its biological function, as it has been found to bind to different receptors with different conformations. Many GABA analogues with pharmaceutical applications have more rigid structures in order to control the binding better.^[31]^[32]

History

Gamma-aminobutyric acid was first synthesized in 1883, and was first known only as a plant and microbe metabolic product. In 1950, however, GABA was discovered to be an integral part of the mammalian central nervous system.^[33]

Bio-synthesis

Gabaergic neurons which produce GABA

Endogenous GABA does not penetrate the blood–brain barrier^{[citation needed]}; it is synthesized in the brain. It is synthesized from glutamate using the enzyme L-glutamic acid decarboxylase (GAD) and pyridoxal phosphate (which is the active form of vitamin B6) as a cofactor. GABA is converted back to glutamate by a metabolic pathway called the GABA shunt. This process converts glutamate, the principal excitatory neurotransmitter, into the principal inhibitory neurotransmitter (GABA).^[34]^[35]

Catabolism

GABA transaminase enzyme catalyzes the conversion of 4-aminobutanoic acid (GABA) and 2-oxoglutarate (α-ketoglutarate) into succinic semialdehyde and glutamate. Succinic semialdehyde is then oxidized into succinic acid by succinic semialdehyde dehydrogenase and as such enters the citric acid cycle as a usable source of energy.^[36]

Pharmacology

Drugs that act as allosteric modulators of GABA receptors (known as GABA analogues or GABAergic drugs) or increase the available amount of GABA typically have relaxing, anti-anxiety, and anti-convulsive effects.^[37]^[38] Many of the substances below are known to cause anterograde amnesia and retrograde amnesia.^[39]

In general, GABA does not cross the blood–brain barrier,^[40] although certain areas of the brain that have no effective blood–brain barrier, such as the periventricular nucleus, can be reached by drugs such as systemically injected GABA.^[41] At least one study suggests that orally administered GABA increases the amount of Human Growth Hormone (HGH).^[42] GABA directly injected to the brain has been reported to have both stimulatory and inhibitory effects on the production of growth hormone, depending on the physiology of the individual.^[41] Certain pro-drugs of GABA (ex. picamilon) have been developed to permeate the blood brain barrier, then separate into GABA and the carrier molecule once inside the brain. This allows for a direct increase of GABA levels throughout all areas of the brain, in a manner following the distribution pattern of the pro-drug prior to metabolism.

GABA has been observed to inhibit the anabolic path of serotonin into N-Acetylserotonin and melatonin in rats.^[43] It is suspected to perform a regulatory function on melatonin production in humans.

GABAergic drugs

GABA_A receptor ligands
- Agonists/Positive allosteric modulators: ethanol,^[44]^[45]^[46] barbiturates, benzodiazepines, carisoprodol, chloral hydrate, etaqualone, etomidate, glutethimide, kava, methaqualone, muscimol, neuroactive steroids, z-drugs, propofol, skullcap, valerian, theanine, volatile/inhaled anaesthetics.
- Antagonists/Negative allosteric modulators: bicuculline, cicutoxin, flumazenil, furosemide, gabazine, oenanthotoxin, picrotoxin, Ro15-4513, thujone.
GABA_B receptor ligands
- Agonists: baclofen, GBL, propofol, GHB,^[47] phenibut.
- Antagonists: phaclofen, saclofen.
GABA reuptake inhibitors: deramciclane, hyperforin, tiagabine.
GABA-transaminase inhibitors: gabaculine, phenelzine, valproate, vigabatrin, lemon balm (Melissa officinalis).^[48]
GABA analogues: pregabalin, gabapentin.
Others: GABA (itself), L-glutamine, picamilon, progabide.

GABA as a supplement

A number of commercial sources sell formulations of GABA for use as a dietary supplement, sometimes for sublingual administration. These sources typically claim that the supplement has a calming effect. These claims are not utterly unreasonable given the nature of GABA in human sympatholysis, but GABA as a tranquilizing agent, purely isolated in itself, is scientifically unsubstantiated or only irregularly demonstrated.^{[citation needed]} For example, there is evidence stating that the calming effects of GABA can be observed in the human brain after administration of GABA as an oral supplement.^[49] However, there is also more scientifically and medicinally relevant evidence that pure GABA does not cross the blood–brain barrier at therapeutically significant levels.^[40] While GABA may not ordinarily cross the blood brain barrier, it is important to note that studies have shown that, within individuals for whom the blood brain barrier has been damaged (temporarily for experimental purposes, or as a result of other problems), GABA does indeed have a positive effect, albeit with side effects.^[50]The only way to deliver GABA effectively is to circumvent the blood-brain barrier. Indeed, there are a small, limited number of over-the-counter supplements that are derivatives of GABA, such as phenibut and picamilon. Picamilon combines niacin and GABA and crosses the blood–brain barrier as a prodrug that later hydrolyzes into GABA and niacin.^[51]

In plants

GABA is also found in plants. It is the most abundant amino acid in the apoplast of tomatoes.^[52] It may also have a role in cell signalling in plants.^[53]^[54]

References

^ Dawson RMC, Elliot DC, Elliot WH, Jones KM, ed. (1959). Data for Biochemical Research. Oxford: Clarendon Press. ^{[page needed]}
^ Watanabe M, Maemura K, Kanbara K, Tamayama T, Hayasaki H (2002). "GABA and GABA receptors in the central nervous system and other organs". In Jeon KW. Int. Rev. Cytol. International Review of Cytology 213. pp. 1–47. doi:10.1016/S0074-7696(02)13011-7. ISBN 978-0-12-364617-0. PMID 11837891.
^ Ffrench-Constant R, Rocheleau T, Steichen J, Chalmers A (June 1993). "A point mutation in a Drosophila GABA receptor confers insecticide resistance". Nature 363 (6428): 449–51. Bibcode:1993Natur.363..449F. doi:10.1038/363449a0. PMID 8389005.
^ Szabadics J, Varga C, Molnár G, Oláh S, Barzó P, Tamás G (January 2006). "Excitatory effect of GABAergic axo-axonic cells in cortical microcircuits". Science 311 (5758): 233–235. Bibcode:2006Sci...311..233S. doi:10.1126/science.1121325. PMID 16410524.
^ ^a ^b Li K, Xu E (June 2008). "The role and the mechanism of γ-aminobutyric acid during central nervous system development". Neurosci Bull 24 (3): 195–200. doi:10.1007/s12264-008-0109-3. PMID 18500393.
^ Ben-Ari Y, Gaiarsa J, Tyzio R, Khazipov R (October 2007). "GABA: a pioneer transmitter that excites immature neurons and generates primitive oscillations". Physiol. Rev. 87 (4): 1215–1284. doi:10.1152/physrev.00017.2006. PMID 17928584.
^ ^a ^b Ganguly K, Schinder A, Wong S, Poo M (May 2001). "GABA itself promotes the developmental switch of neuronal GABAergic responses from excitation to inhibition". Cell 105 (4): 521–32. doi:10.1016/S0092-8674(01)00341-5. PMID 11371348.
^ Rheims S, Holmgren C, Chazal G, Mulder J, Harkany T, Zilberter T et al. (August 2009). "GABA action in immature neocortical neurons directly depends on the availability of ketone bodies". J. Neurochem. 110 (4): 1330–8. doi:10.1111/j.1471-4159.2009.06230.x. PMID 19558450.
^ Holmgren C, Mukhtarov M, Malkov A, Popova I, Bregestovski P, Zilberter Y (February 2010). "Energy substrate availability as a determinant of neuronal resting potential, GABA signaling and spontaneous network activity in the neonatal cortex in vitro". J. Neurochem. 112 (4): 900–12. doi:10.1111/j.1471-4159.2009.06506.x. PMID 19943846.
^ Tyzio R, Allene C, Nardou R, Picardo M, Yamamoto S, Sivakumaran S et al. (January 2011). "Depolarizing actions of GABA in immature neurons depend neither on ketone bodies nor on pyruvate". J. Neurosci. 31 (1): 34–45. doi:10.1523/JNEUROSCI.3314-10.2011. PMID 21209187.
^ Ruusuvuori E, Kirilkin I, Pandya N, Kaila K (November 2010). "Spontaneous network events driven by depolarizing GABA action in neonatal hippocampal slices are not attributable to deficient mitochondrial energy metabolism". J. Neurosci. 30 (46): 15638–42. doi:10.1523/JNEUROSCI.3355-10.2010. PMID 21084619.
^ Mukhtarov M, Ivanov A, Zilberter Y, Bregestovski P (January 2011). "Inhibition of spontaneous network activity in neonatal hippocampal slices by energy substrates is not correlated with intracellular acidification". J. Neurochem. 116 (2): 316–21. doi:10.1111/j.1471-4159.2010.07111.x. PMID 21083663.
^ Ivanov A, Mukhtarov M, Bregestovski P, Zilberter Y (2011). "Lactate Effectively Covers Energy Demands during Neuronal Network Activity in Neonatal Hippocampal Slices". Front Neuroenergetics 3: 2. doi:10.3389/fnene.2011.00002. PMC 3092068. PMID 21602909.
^ Khakhalin A (May 2011). "Questioning the depolarizing effects of GABA during early brain development". J Neurophysiol 106 (3): 1065–7. doi:10.1152/jn.00293.2011. PMID 21593390.
^ Purves D, Fitzpatrick D, Hall WC, Augustine GJ, Lamantia A-S, ed. (2007). Neuroscience (4th ed.). Sunderland, Mass: Sinauer. pp. 135, box 6D. ISBN 0-87893-697-1.
^ Jelitai M, Madarasz E (2005). "The role of GABA in the early neuronal development". Int. Rev. Neurobiol. International Review of Neurobiology 71: 27–62. doi:10.1016/S0074-7742(05)71002-3. ISBN 9780123668721. PMID 16512345.
^ Marín O, Rubenstein J (November 2001). "A long, remarkable journey: tangential migration in the telencephalon". Nat. Rev. Neurosci. 2 (11): 780–90. doi:10.1038/35097509. PMID 11715055.
^ LoTurco J, Owens D, Heath M, Davis M, Kriegstein A (December 1995). "GABA and glutamate depolarize cortical progenitor cells and inhibit DNA synthesis". Neuron 15 (6): 1287–1298. doi:10.1016/0896-6273(95)90008-X. PMID 8845153.
^ Haydar T, Wang F, Schwartz M, Rakic P (August 2000). "Differential modulation of proliferation in the neocortical ventricular and subventricular zones". J. Neurosci. 20 (15): 5764–74. PMID 10908617.
^ Behar T, Schaffner A, Scott C, O'Connell C, Barker J (August 1998). "Differential response of cortical plate and ventricular zone cells to GABA as a migration stimulus". J. Neurosci. 18 (16): 6378–87. PMID 9698329.
^ Barbin G, Pollard H, Gaïarsa J, Ben-Ari Y (April 1993). "Involvement of GABAA receptors in the outgrowth of cultured hippocampal neurons". Neurosci. Lett. 152 (1–2): 150–154. doi:10.1016/0304-3940(93)90505-F. PMID 8390627.
^ Maric D, Liu Q, Maric I, Chaudry S, Chang Y, Smith S et al. (April 2001). "GABA expression dominates neuronal lineage progression in the embryonic rat neocortex and facilitates neurite outgrowth via GABA(A) autoreceptor/Cl⁻ channels". J. Neurosci. 21 (7): 2343–60. PMID 11264309.
^ Ben-Ari Y (September 2002). "Excitatory actions of gaba during development: the nature of the nurture". Nat. Rev. Neurosci. 3 (9): 728–739. doi:10.1038/nrn920. PMID 12209121.
^ Obrietan K, Gao X, Van Den Pol A (August 2002). "Excitatory actions of GABA increase BDNF expression via a MAPK-CREB-dependent mechanism--a positive feedback circuit in developing neurons". J. Neurophysiol. 88 (2): 1005–15. PMID 12163549.
^ Wang D, Kriegstein A, Ben-Ari Y (2008). "GABA regulates stem cell proliferation before nervous system formation". Epilepsy Curr 8 (5): 137–9. doi:10.1111/j.1535-7511.2008.00270.x. PMC 2566617. PMID 18852839.
^ Popp A, Urbach A, Witte OW, Frahm C (2009). Reh, Thomas A., ed. "Adult and embryonic GAD transcripts are spatiotemporally regulated during postnatal development in the rat brain". PLoS ONE 4 (2): e4371. Bibcode:2009PLoSO...4.4371P. doi:10.1371/journal.pone.0004371. PMC 2629816. PMID 19190758.
^ Erdö S, Wolff J (February 1990). "γ-Aminobutyric acid outside the mammalian brain". J. Neurochem. 54 (2): 363–72. doi:10.1111/j.1471-4159.1990.tb01882.x. PMID 2405103.
^ Xiang Y, Wang S, Liu M, Hirota J, Li J, Ju W et al. (July 2007). "A GABAergic system in airway epithelium is essential for mucus overproduction in asthma". Nat. Med. 13 (7): 862–7. doi:10.1038/nm1604. PMID 17589520.
^ Payne AH, Hardy MH (2007). The Leydig cell in health and disease. Humana Press. ISBN 1-58829-754-3.
^ Kwakowsky A, Schwirtlich M, Zhang Q, Eisenstat D, Erdélyi F, Baranyi M et al. (December 2007). "GAD isoforms exhibit distinct spatiotemporal expression patterns in the developing mouse lens: correlation with Dlx2 and Dlx5". Dev. Dyn. 236 (12): 3532–44. doi:10.1002/dvdy.21361. PMID 17969168.
^ Majumdar D, Guha S (1988). "Conformation, electrostatic potential and pharmacophoric pattern of GABA (γ-aminobutyric acid) and several GABA inhibitors". Journal of Molecular Structure: THEOCHEM 180: 125–140. doi:10.1016/0166-1280(88)80084-8.
^ Sapse A-M (2000). Molecular Orbital Calculations for Amino Acids and Peptides. Birkhäuser. ISBN 978-0-8176-3893-1. ^{[page needed]}
^ Roth RJ, Cooper JR, Bloom FE (2003). The Biochemical Basis of Neuropharmacology. Oxford [Oxfordshire]: Oxford University Press. p. 106. ISBN 0-19-514008-7.
^ Petroff O (December 2002). "GABA and glutamate in the human brain". Neuroscientist 8 (6): 562–573. doi:10.1177/1073858402238515. PMID 12467378.
^ Schousboe A, Waagepetersen H (2007). "GABA: homeostatic and pharmacological aspects". Prog. Brain Res. Progress in Brain Research 160: 9–19. doi:10.1016/S0079-6123(06)60002-2. ISBN 978-0-444-52184-2. PMID 17499106.
^ Bown A, Shelp B (September 1997). "The Metabolism and Functions of γ-Aminobutyric Acid". Plant Physiol. 115 (1): 1–5. doi:10.1104/pp.115.1.1 (inactive 2015-01-01). PMC 158453. PMID 12223787.
^ Foster A, Kemp J (February 2006). "Glutamate- and GABA-based CNS therapeutics". Curr Opin Pharmacol 6 (1): 7–17. doi:10.1016/j.coph.2005.11.005. PMID 16377242.
^ Chapouthier G, Venault P (October 2001). "A pharmacological link between epilepsy and anxiety?". Trends Pharmacol. Sci. 22 (10): 491–3. doi:10.1016/S0165-6147(00)01807-1. PMID 11583788.
^ Campagna J, Miller K, Forman S (May 2003). "Mechanisms of actions of inhaled anesthetics". N. Engl. J. Med. 348 (21): 2110–24. doi:10.1056/NEJMra021261. PMID 12761368.
^ ^a ^b Kuriyama K, Sze P (January 1971). "Blood–brain barrier to H3-γ-aminobutyric acid in normal and amino oxyacetic acid-treated animals". Neuropharmacology 10 (1): 103–108. doi:10.1016/0028-3908(71)90013-X. PMID 5569303.
^ ^a ^b Müller E, Locatelli V, Cocchi D (April 1999). "Neuroendocrine control of growth hormone secretion". Physiol. Rev. 79 (2): 511–607. PMID 10221989.
^ Powers M, Yarrow J, McCoy S, Borst S (January 2008). "Growth hormone isoform responses to GABA ingestion at rest and after exercise". Medicine and science in sports and exercise 40 (1): 104–10. doi:10.1249/mss.0b013e318158b518. PMID 18091016.
^ http://www.ncbi.nlm.nih.gov/pubmed/6844712
^ Dzitoyeva S, Dimitrijevic N, Manev H (2003). "γ-aminobutyric acid B receptor 1 mediates behavior-impairing actions of alcohol in Drosophila: adult RNA interference and pharmacological evidence". Proc. Natl. Acad. Sci. U.S.A. 100 (9): 5485–5490. Bibcode:2003PNAS..100.5485D. doi:10.1073/pnas.0830111100. PMC 154371. PMID 12692303.
^ Mihic S, Ye Q, Wick M, Koltchine V, Krasowski M, Finn S et al. (1997). "Sites of alcohol and volatile anaesthetic action on GABA_A and glycine receptors". Nature 389 (6649): 385–389. Bibcode:1997Natur.389..385M. doi:10.1038/38738. PMID 9311780.
^ Boehm S, Ponomarev I, Blednov Y, Harris R (2006). "From gene to behavior and back again: new perspectives on GABA_Areceptor subunit selectivity of alcohol actions". Adv. Pharmacol. 54 (8): 1581–1602. doi:10.1016/j.bcp.2004.07.023. PMID 17175815.
^ Dimitrijevic N, Dzitoyeva S, Satta R, Imbesi M, Yildiz S, Manev H (2005). "Drosophila GABA_B receptors are involved in behavioral effects of gamma-hydroxybutyric acid (GHB)". Eur. J. Pharmacol. 519 (3): 246–252. doi:10.1016/j.ejphar.2005.07.016. PMID 16129424.
^ Awad R, Muhammad A, Durst T, Trudeau V, Arnason J (August 2009). "Bioassay-guided fractionation of lemon balm (Melissa officinalis L.) using an in vitro measure of GABA transaminase activity". Phytother Res 23 (8): 1075–81. doi:10.1002/ptr.2712. PMID 19165747.
^ Abdou A, Higashiguchi S, Horie K, Kim M, Hatta H, Yokogoshi H (2006). "Relaxation and immunity enhancement effects of gamma-aminobutyric acid (GABA) administration in humans". BioFactors 26 (3): 201–8. doi:10.1002/biof.5520260305. PMID 16971751.
^ "A GABA-EEG test of the blood-brain barrier near epileptic foci.".
^ Dorofeev B, Kholodov L (1991). Фармакокинетика пикамилона у животных [Pikamilon pharmacokinetics in animals]. Farmakologiia i toksikologiia (in Russian) 54 (2): 66–9. PMID 1884802.
^ Park D, Mirabella R, Bronstein P, Preston G, Haring M, Lim C et al. (October 2010). "Mutations in γ-aminobutyric acid (GABA) transaminase genes in plants or Pseudomonas syringae reduce bacterial virulence". Plant J. 64 (2): 318–30. doi:10.1111/j.1365-313X.2010.04327.x. PMID 21070411.
^ Bouché N, Fromm H (March 2004). "GABA in plants: just a metabolite?". Trends Plant Sci. 9 (3): 110–5. doi:10.1016/j.tplants.2004.01.006. PMID 15003233.
^ Roberts M (September 2007). "Does GABA Act as a Signal in Plants?: Hints from Molecular Studies". Plant Signal Behav 2 (5): 408–9. doi:10.4161/psb.2.5.4335. PMC 2634229. PMID 19704616.

External links

Media related to Gamma-Aminobutyric acid at Wikimedia Commons
Gamma-aminobutyric acid MS Spectrum
Lydiard B, Pollack MH, Ketter TA, Kisch E, Hettema JM (2001-10-26). "GABA". Continuing Medical Education. School of Medicine, Virginia Commonwealth University, Medical College of Virginia Campus (VCU), Richmond, VA. Retrieved 2008-06-20. The role of GABA in the pathogenesis and treatment of anxiety and other neuropsychiatric disorders
Scholarpedia article on GABA
List of GABA neurons on NeuroLex.org

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Carafa I1, Nardin T2, Larcher R2, Viola R1, Tuohy K1, Franciosi E3.
Food microbiology.Food Microbiol.2015 Jun;48:123-32. doi: 10.1016/j.fm.2014.12.003. Epub 2014 Dec 18.
The Traditional Mountain Malga (TMM) cheese is made from raw cow's milk by spontaneously fermentation in small farms called "Malga" located in Trentino region. This study was designed to characterize the lactic acid bacteria (LAB) growing on MRS medium, of TMM-cheese at the end of the ripening. Nine
PMID 25791000

TRPC1 and metabotropic glutamate receptor expression in rat auditory midbrain neurons.

Valero ML1, Caminos E, Juiz JM, Martinez-Galan JR.
Journal of neuroscience research.J Neurosci Res.2015 Jun;93(6):964-72. doi: 10.1002/jnr.23557. Epub 2015 Jan 27.
Canonical transient receptor potential (TRPC) channels are plasma membrane cation channels included in the TRP superfamily. TRPC1 is expressed widely in the central nervous system and is linked to group I metabotropic glutamate receptors (mGluRs). In the auditory brainstem, TRPC1 expression has neve
PMID 25627107

Japanese Journal

スボレキサントの基礎 (特集オレキシン受容体拮抗薬スボレキサント)

藤木通弘
精神科 = Psychiatry 26(6), 431-435, 2015-06
NAID 40020486591

Effects of the 5-HT₁A Receptor Agonist Tandospirone on ACTH-Induced Sleep Disturbance in Rats

Tsutsui Ryuki,Shinomiya Kazuaki,Sendo Toshiaki [他]
Biological & pharmaceutical bulletin 38(6), 884-888, 2015-06
NAID 40020471456

Effects of the 5-HT1A Receptor Agonist Tandospirone on ACTH-Induced Sleep Disturbance in Rats

Tsutsui Ryuki,Shinomiya Kazuaki,Sendo Toshiaki,Kitamura Yoshihisa,Kamei Chiaki
Biological and Pharmaceutical Bulletin 38(6), 884-888, 2015
The aim of this study was to compare the effect of the serotonin (5-HT)1A receptor agonist tandospirone versus that of the benzodiazepine hypnotic flunitrazepam in a rat model of long-term adrenocorti …
NAID 130005072657

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★リンクテーブル★

リンク元	「GABA」
拡張検索	「gamma-aminobutyric acid receptor」
関連記事	「aminobutyric acid」「gamma」

「GABA」

*gamma*-Aminobutyric acid
Names
	IUPAC name 4-aminobutanoic acid
Identifiers
CAS number	56-12-2
ChEBI	CHEBI:16865
ChEMBL	ChEMBL96
ChemSpider	116
DrugBank	DB02530
EC number	200-258-6
	InChI InChI=1S/C4H9NO2/c5-3-1-2-4(6)7/h1-3,5H2,(H,6,7) ; Key: BTCSSZJGUNDROE-UHFFFAOYSA-N ; InChI=1/C4H9NO2/c5-3-1-2-4(6)7/h1-3,5H2,(H,6,7); Key: BTCSSZJGUNDROE-UHFFFAOYAC ;
IUPHAR ligand	1067
Jmol-3D images	Image
KEGG	D00058
MeSH	gamma-Aminobutyric+Acid
PubChem	119
RTECS number	ES6300000
	SMILES C(CC(=O)O)CN ;
UNII	2ACZ6IPC6I
Properties
Molecular formula	C4H9NO2
Molar mass	103.120 g/mol
Appearance	white microcrystalline powder
Density	1.11 g/mL
Melting point	203.7 °C (398.7 °F; 476.8 K)
Boiling point	247.9 °C (478.2 °F; 521.0 K)
Solubility in water	130 g/100 mL
log P	−3.17
Acidity (pKa)	4.23 (carboxyl), 10.43 (amino)
Hazards
Main hazards	Irritant, Harmful
LD50 (Lethal dose)	12,680 mg/kg (mouse, oral)
	Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
	verify (what is: /?)
	Infobox references

　　[★]

butyl
英: γ-aminobutyric acid, γ-aminobutyrate, gamma aminobutyric acid
同: γ-アミノ酪酸、4-アミノ酪酸、γ-アミノ酪酸、γアミノ酪酸、ガンマアミノブチル酸
関: GABA受容体。ブチル

アミノ酸からなる
抑制性神経伝達物質

構造

4炭素の炭化水素 butaneのカルボン酸 butyric acidをベースとして、γ位(カルボン酸の炭素につながっている炭素がα位)にアミノ基がついた構造

生合成

グルタミン酸にグルタミン脱炭酸酵素が作用しγ-アミノ酪酸が生成する(補酵素：PLP) (SPC.77)

「gamma-aminobutyric acid receptor」

　　[★]

γアミノ酪酸受容体、GABA受容体

関: GABA receptor

「aminobutyric acid」

　　[★]

アミノ酪酸

関: aminobutyrate

「gamma」

　　[★] γ ガンマ　　　

[1] Dawson RMC, Elliot DC, Elliot WH, Jones KM, ed. (1959). Data for Biochemical Research. Oxford: Clarendon Press. ^{[page needed]}

[pmid11837891-2] Watanabe M, Maemura K, Kanbara K, Tamayama T, Hayasaki H (2002). "GABA and GABA receptors in the central nervous system and other organs". In Jeon KW. Int. Rev. Cytol. International Review of Cytology 213. pp. 1–47. doi:10.1016/S0074-7696(02)13011-7. ISBN 978-0-12-364617-0. PMID 11837891.

[pmid8389005-3] Ffrench-Constant R, Rocheleau T, Steichen J, Chalmers A (June 1993). "A point mutation in a Drosophila GABA receptor confers insecticide resistance". Nature 363 (6428): 449–51. Bibcode:1993Natur.363..449F. doi:10.1038/363449a0. PMID 8389005.

[pmid16410524-4] Szabadics J, Varga C, Molnár G, Oláh S, Barzó P, Tamás G (January 2006). "Excitatory effect of GABAergic axo-axonic cells in cortical microcircuits". Science 311 (5758): 233–235. Bibcode:2006Sci...311..233S. doi:10.1126/science.1121325. PMID 16410524.

[pmid18500393-5] Li K, Xu E (June 2008). "The role and the mechanism of γ-aminobutyric acid during central nervous system development". Neurosci Bull 24 (3): 195–200. doi:10.1007/s12264-008-0109-3. PMID 18500393.

[pmid17928584-6] Ben-Ari Y, Gaiarsa J, Tyzio R, Khazipov R (October 2007). "GABA: a pioneer transmitter that excites immature neurons and generates primitive oscillations". Physiol. Rev. 87 (4): 1215–1284. doi:10.1152/physrev.00017.2006. PMID 17928584.

[pmid11371348-7] Ganguly K, Schinder A, Wong S, Poo M (May 2001). "GABA itself promotes the developmental switch of neuronal GABAergic responses from excitation to inhibition". Cell 105 (4): 521–32. doi:10.1016/S0092-8674(01)00341-5. PMID 11371348.

[pmid19558450-8] Rheims S, Holmgren C, Chazal G, Mulder J, Harkany T, Zilberter T et al. (August 2009). "GABA action in immature neocortical neurons directly depends on the availability of ketone bodies". J. Neurochem. 110 (4): 1330–8. doi:10.1111/j.1471-4159.2009.06230.x. PMID 19558450.

[Holmgren_2010-9] Holmgren C, Mukhtarov M, Malkov A, Popova I, Bregestovski P, Zilberter Y (February 2010). "Energy substrate availability as a determinant of neuronal resting potential, GABA signaling and spontaneous network activity in the neonatal cortex in vitro". J. Neurochem. 112 (4): 900–12. doi:10.1111/j.1471-4159.2009.06506.x. PMID 19943846.

[pmid21209187-10] Tyzio R, Allene C, Nardou R, Picardo M, Yamamoto S, Sivakumaran S et al. (January 2011). "Depolarizing actions of GABA in immature neurons depend neither on ketone bodies nor on pyruvate". J. Neurosci. 31 (1): 34–45. doi:10.1523/JNEUROSCI.3314-10.2011. PMID 21209187.

[pmid21084619-11] Ruusuvuori E, Kirilkin I, Pandya N, Kaila K (November 2010). "Spontaneous network events driven by depolarizing GABA action in neonatal hippocampal slices are not attributable to deficient mitochondrial energy metabolism". J. Neurosci. 30 (46): 15638–42. doi:10.1523/JNEUROSCI.3355-10.2010. PMID 21084619.

[pmid21083663-12] Mukhtarov M, Ivanov A, Zilberter Y, Bregestovski P (January 2011). "Inhibition of spontaneous network activity in neonatal hippocampal slices by energy substrates is not correlated with intracellular acidification". J. Neurochem. 116 (2): 316–21. doi:10.1111/j.1471-4159.2010.07111.x. PMID 21083663.

[pmid21602909-13] Ivanov A, Mukhtarov M, Bregestovski P, Zilberter Y (2011). "Lactate Effectively Covers Energy Demands during Neuronal Network Activity in Neonatal Hippocampal Slices". Front Neuroenergetics 3: 2. doi:10.3389/fnene.2011.00002. PMC 3092068. PMID 21602909.

[pmid21593390-14] Khakhalin A (May 2011). "Questioning the depolarizing effects of GABA during early brain development". J Neurophysiol 106 (3): 1065–7. doi:10.1152/jn.00293.2011. PMID 21593390.

[isbn0-87893-697-1-15] Purves D, Fitzpatrick D, Hall WC, Augustine GJ, Lamantia A-S, ed. (2007). Neuroscience (4th ed.). Sunderland, Mass: Sinauer. pp. 135, box 6D. ISBN 0-87893-697-1.

[pmid16512345-16] Jelitai M, Madarasz E (2005). "The role of GABA in the early neuronal development". Int. Rev. Neurobiol. International Review of Neurobiology 71: 27–62. doi:10.1016/S0074-7742(05)71002-3. ISBN 9780123668721. PMID 16512345.

[pmid11715055-17] Marín O, Rubenstein J (November 2001). "A long, remarkable journey: tangential migration in the telencephalon". Nat. Rev. Neurosci. 2 (11): 780–90. doi:10.1038/35097509. PMID 11715055.

[pmid8845153-18] LoTurco J, Owens D, Heath M, Davis M, Kriegstein A (December 1995). "GABA and glutamate depolarize cortical progenitor cells and inhibit DNA synthesis". Neuron 15 (6): 1287–1298. doi:10.1016/0896-6273(95)90008-X. PMID 8845153.

[pmid10908617-19] Haydar T, Wang F, Schwartz M, Rakic P (August 2000). "Differential modulation of proliferation in the neocortical ventricular and subventricular zones". J. Neurosci. 20 (15): 5764–74. PMID 10908617.

[pmid9698329-20] Behar T, Schaffner A, Scott C, O'Connell C, Barker J (August 1998). "Differential response of cortical plate and ventricular zone cells to GABA as a migration stimulus". J. Neurosci. 18 (16): 6378–87. PMID 9698329.

[pmid8390627-21] Barbin G, Pollard H, Gaïarsa J, Ben-Ari Y (April 1993). "Involvement of GABAA receptors in the outgrowth of cultured hippocampal neurons". Neurosci. Lett. 152 (1–2): 150–154. doi:10.1016/0304-3940(93)90505-F. PMID 8390627.

[pmid11264309-22] Maric D, Liu Q, Maric I, Chaudry S, Chang Y, Smith S et al. (April 2001). "GABA expression dominates neuronal lineage progression in the embryonic rat neocortex and facilitates neurite outgrowth via GABA(A) autoreceptor/Cl⁻ channels". J. Neurosci. 21 (7): 2343–60. PMID 11264309.

[pmid12209121-23] Ben-Ari Y (September 2002). "Excitatory actions of gaba during development: the nature of the nurture". Nat. Rev. Neurosci. 3 (9): 728–739. doi:10.1038/nrn920. PMID 12209121.

[pmid12163549-24] Obrietan K, Gao X, Van Den Pol A (August 2002). "Excitatory actions of GABA increase BDNF expression via a MAPK-CREB-dependent mechanism--a positive feedback circuit in developing neurons". J. Neurophysiol. 88 (2): 1005–15. PMID 12163549.

[pmid18852839-25] Wang D, Kriegstein A, Ben-Ari Y (2008). "GABA regulates stem cell proliferation before nervous system formation". Epilepsy Curr 8 (5): 137–9. doi:10.1111/j.1535-7511.2008.00270.x. PMC 2566617. PMID 18852839.

[pmid19190758-26] Popp A, Urbach A, Witte OW, Frahm C (2009). Reh, Thomas A., ed. "Adult and embryonic GAD transcripts are spatiotemporally regulated during postnatal development in the rat brain". PLoS ONE 4 (2): e4371. Bibcode:2009PLoSO...4.4371P. doi:10.1371/journal.pone.0004371. PMC 2629816. PMID 19190758.

[pmid2405103-27] Erdö S, Wolff J (February 1990). "γ-Aminobutyric acid outside the mammalian brain". J. Neurochem. 54 (2): 363–72. doi:10.1111/j.1471-4159.1990.tb01882.x. PMID 2405103.

[GABA_lungs-28] Xiang Y, Wang S, Liu M, Hirota J, Li J, Ju W et al. (July 2007). "A GABAergic system in airway epithelium is essential for mucus overproduction in asthma". Nat. Med. 13 (7): 862–7. doi:10.1038/nm1604. PMID 17589520.

[Inyerballs-29] Payne AH, Hardy MH (2007). The Leydig cell in health and disease. Humana Press. ISBN 1-58829-754-3.

[GABA_lens-30] Kwakowsky A, Schwirtlich M, Zhang Q, Eisenstat D, Erdélyi F, Baranyi M et al. (December 2007). "GAD isoforms exhibit distinct spatiotemporal expression patterns in the developing mouse lens: correlation with Dlx2 and Dlx5". Dev. Dyn. 236 (12): 3532–44. doi:10.1002/dvdy.21361. PMID 17969168.

[Majumdar_Guha_1988-31] Majumdar D, Guha S (1988). "Conformation, electrostatic potential and pharmacophoric pattern of GABA (γ-aminobutyric acid) and several GABA inhibitors". Journal of Molecular Structure: THEOCHEM 180: 125–140. doi:10.1016/0166-1280(88)80084-8.

[32] Sapse A-M (2000). Molecular Orbital Calculations for Amino Acids and Peptides. Birkhäuser. ISBN 978-0-8176-3893-1. ^{[page needed]}

[isbn0-19-514008-7-33] Roth RJ, Cooper JR, Bloom FE (2003). The Biochemical Basis of Neuropharmacology. Oxford [Oxfordshire]: Oxford University Press. p. 106. ISBN 0-19-514008-7.

[pmid12467378-34] Petroff O (December 2002). "GABA and glutamate in the human brain". Neuroscientist 8 (6): 562–573. doi:10.1177/1073858402238515. PMID 12467378.

[pmid17499106-35] Schousboe A, Waagepetersen H (2007). "GABA: homeostatic and pharmacological aspects". Prog. Brain Res. Progress in Brain Research 160: 9–19. doi:10.1016/S0079-6123(06)60002-2. ISBN 978-0-444-52184-2. PMID 17499106.

[catabolism-36] Bown A, Shelp B (September 1997). "The Metabolism and Functions of γ-Aminobutyric Acid". Plant Physiol. 115 (1): 1–5. doi:10.1104/pp.115.1.1 (inactive 2015-01-01). PMC 158453. PMID 12223787.

[pmid16377242-37] Foster A, Kemp J (February 2006). "Glutamate- and GABA-based CNS therapeutics". Curr Opin Pharmacol 6 (1): 7–17. doi:10.1016/j.coph.2005.11.005. PMID 16377242.

[pmid11583788-38] Chapouthier G, Venault P (October 2001). "A pharmacological link between epilepsy and anxiety?". Trends Pharmacol. Sci. 22 (10): 491–3. doi:10.1016/S0165-6147(00)01807-1. PMID 11583788.

[pmid12761368-39] Campagna J, Miller K, Forman S (May 2003). "Mechanisms of actions of inhaled anesthetics". N. Engl. J. Med. 348 (21): 2110–24. doi:10.1056/NEJMra021261. PMID 12761368.

[Kuriyama-40] Kuriyama K, Sze P (January 1971). "Blood–brain barrier to H3-γ-aminobutyric acid in normal and amino oxyacetic acid-treated animals". Neuropharmacology 10 (1): 103–108. doi:10.1016/0028-3908(71)90013-X. PMID 5569303.

[Muller1999-41] Müller E, Locatelli V, Cocchi D (April 1999). "Neuroendocrine control of growth hormone secretion". Physiol. Rev. 79 (2): 511–607. PMID 10221989.

[Powers2008-42] Powers M, Yarrow J, McCoy S, Borst S (January 2008). "Growth hormone isoform responses to GABA ingestion at rest and after exercise". Medicine and science in sports and exercise 40 (1): 104–10. doi:10.1249/mss.0b013e318158b518. PMID 18091016.

[43] ttp://www.ncbi.nlm.nih.gov/pubmed/6844712

[pmid12692303-44] Dzitoyeva S, Dimitrijevic N, Manev H (2003). "γ-aminobutyric acid B receptor 1 mediates behavior-impairing actions of alcohol in Drosophila: adult RNA interference and pharmacological evidence". Proc. Natl. Acad. Sci. U.S.A. 100 (9): 5485–5490. Bibcode:2003PNAS..100.5485D. doi:10.1073/pnas.0830111100. PMC 154371. PMID 12692303.

[pmid9311780-45] Mihic S, Ye Q, Wick M, Koltchine V, Krasowski M, Finn S et al. (1997). "Sites of alcohol and volatile anaesthetic action on GABA_A and glycine receptors". Nature 389 (6649): 385–389. Bibcode:1997Natur.389..385M. doi:10.1038/38738. PMID 9311780.

[pmid17175815-46] Boehm S, Ponomarev I, Blednov Y, Harris R (2006). "From gene to behavior and back again: new perspectives on GABA_Areceptor subunit selectivity of alcohol actions". Adv. Pharmacol. 54 (8): 1581–1602. doi:10.1016/j.bcp.2004.07.023. PMID 17175815.

[pmid16129424-47] Dimitrijevic N, Dzitoyeva S, Satta R, Imbesi M, Yildiz S, Manev H (2005). "Drosophila GABA_B receptors are involved in behavioral effects of gamma-hydroxybutyric acid (GHB)". Eur. J. Pharmacol. 519 (3): 246–252. doi:10.1016/j.ejphar.2005.07.016. PMID 16129424.

[pmid19165747-48] Awad R, Muhammad A, Durst T, Trudeau V, Arnason J (August 2009). "Bioassay-guided fractionation of lemon balm (Melissa officinalis L.) using an in vitro measure of GABA transaminase activity". Phytother Res 23 (8): 1075–81. doi:10.1002/ptr.2712. PMID 19165747.

[pmid16971751-49] Abdou A, Higashiguchi S, Horie K, Kim M, Hatta H, Yokogoshi H (2006). "Relaxation and immunity enhancement effects of gamma-aminobutyric acid (GABA) administration in humans". BioFactors 26 (3): 201–8. doi:10.1002/biof.5520260305. PMID 16971751.

[50] "A GABA-EEG test of the blood-brain barrier near epileptic foci.".

[pmid1884802-51] Dorofeev B, Kholodov L (1991). Фармакокинетика пикамилона у животных [Pikamilon pharmacokinetics in animals]. Farmakologiia i toksikologiia (in Russian) 54 (2): 66–9. PMID 1884802.

[52] Park D, Mirabella R, Bronstein P, Preston G, Haring M, Lim C et al. (October 2010). "Mutations in γ-aminobutyric acid (GABA) transaminase genes in plants or Pseudomonas syringae reduce bacterial virulence". Plant J. 64 (2): 318–30. doi:10.1111/j.1365-313X.2010.04327.x. PMID 21070411.

[pmid15003233-53] Bouché N, Fromm H (March 2004). "GABA in plants: just a metabolite?". Trends Plant Sci. 9 (3): 110–5. doi:10.1016/j.tplants.2004.01.006. PMID 15003233.

[pmid19704616-54] Roberts M (September 2007). "Does GABA Act as a Signal in Plants?: Hints from Molecular Studies". Plant Signal Behav 2 (5): 408–9. doi:10.4161/psb.2.5.4335. PMC 2634229. PMID 19704616.

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案内

gamma aminobutyric acid