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Orchestrated ensemble activities constitute a hippocampal memory engram.

Ghandour K, Ohkawa N, Fung CCA, Asai H, Saitoh Y, Takekawa T, Okubo-Suzuki R, Soya S, Nishizono H, Matsuo M, Osanai M, Sato M, Ohkura M, Nakai J, Hayashi Y, Sakurai T, Kitamura T, Fukai T, Inokuchi K.

Nat Commun. 2019 Jun 14;10(1):2637. doi: 10.1038/s41467-019-10683-2.


Wide and Deep Imaging of Neuronal Activities by a Wearable NeuroImager Reveals Premotor Activity in the Whole Motor Cortex.

Kobayashi T, Islam T, Sato M, Ohkura M, Nakai J, Hayashi Y, Okamoto H.

Sci Rep. 2019 Jun 10;9(1):8366. doi: 10.1038/s41598-019-44146-x.


Confocal and multiphoton calcium imaging of the enteric nervous system in anesthetized mice.

Motegi Y, Sato M, Horiguchi K, Ohkura M, Gengyo-Ando K, Ikegaya Y, Fusamae Y, Hongo Y, Suzuki M, Ogawa K, Takaki M, Nakai J.

Neurosci Res. 2019 Feb 18. pii: S0168-0102(18)30523-6. doi: 10.1016/j.neures.2019.02.004. [Epub ahead of print]


ELKS/Voltage-Dependent Ca2+ Channel-β Subunit Module Regulates Polarized Ca2+ Influx in Pancreatic β Cells.

Ohara-Imaizumi M, Aoyagi K, Yamauchi H, Yoshida M, Mori MX, Hida Y, Tran HN, Ohkura M, Abe M, Akimoto Y, Nakamichi Y, Nishiwaki C, Kawakami H, Hara K, Sakimura K, Nagamatsu S, Mori Y, Nakai J, Kakei M, Ohtsuka T.

Cell Rep. 2019 Jan 29;26(5):1213-1226.e7. doi: 10.1016/j.celrep.2018.12.106.


Comparative Genomics of Aspergillus flavus S and L Morphotypes Yield Insights into Niche Adaptation.

Ohkura M, Cotty PJ, Orbach MJ.

G3 (Bethesda). 2018 Dec 10;8(12):3915-3930. doi: 10.1534/g3.118.200553.


Super-wide-field two-photon imaging with a micro-optical device moving in post-objective space.

Terada SI, Kobayashi K, Ohkura M, Nakai J, Matsuzaki M.

Nat Commun. 2018 Sep 3;9(1):3550. doi: 10.1038/s41467-018-06058-8.


Role of tyramine in calcium dynamics of GABAergic neurons and escape behavior in Caenorhabditis elegans.

Kagawa-Nagamura Y, Gengyo-Ando K, Ohkura M, Nakai J.

Zoological Lett. 2018 Jul 26;4:19. doi: 10.1186/s40851-018-0103-1. eCollection 2018.


In vivo wide-field calcium imaging of mouse thalamocortical synapses with an 8 K ultra-high-definition camera.

Yoshida E, Terada SI, Tanaka YH, Kobayashi K, Ohkura M, Nakai J, Matsuzaki M.

Sci Rep. 2018 May 29;8(1):8324. doi: 10.1038/s41598-018-26566-3.


A Critical Neurodevelopmental Role for L-Type Voltage-Gated Calcium Channels in Neurite Extension and Radial Migration.

Kamijo S, Ishii Y, Horigane SI, Suzuki K, Ohkura M, Nakai J, Fujii H, Takemoto-Kimura S, Bito H.

J Neurosci. 2018 Jun 13;38(24):5551-5566. doi: 10.1523/JNEUROSCI.2357-17.2018. Epub 2018 May 17.


Fast varifocal two-photon microendoscope for imaging neuronal activity in the deep brain.

Sato M, Motegi Y, Yagi S, Gengyo-Ando K, Ohkura M, Nakai J.

Biomed Opt Express. 2017 Aug 10;8(9):4049-4060. doi: 10.1364/BOE.8.004049. eCollection 2017 Sep 1.


Two-photon calcium imaging of the medial prefrontal cortex and hippocampus without cortical invasion.

Kondo M, Kobayashi K, Ohkura M, Nakai J, Matsuzaki M.

Elife. 2017 Sep 25;6. pii: e26839. doi: 10.7554/eLife.26839.


Effects of pulpotomy using mineral trioxide aggregate on prostaglandin transporter and receptors in rat molars.

Ohkura N, Edanami N, Takeuchi R, Tohma A, Ohkura M, Yoshiba N, Yoshiba K, Ida-Yonemochi H, Ohshima H, Okiji T, Noiri Y.

Sci Rep. 2017 Jul 31;7(1):6870. doi: 10.1038/s41598-017-07167-y.


Genome Sequence of Ophidiomyces ophiodiicola, an Emerging Fungal Pathogen of Snakes.

Ohkura M, Fitak RR, Wisecaver JH, DeBlasio D, Niazi F, Egholm M, Rounsley SD, Kodira CD, Orbach MJ.

Genome Announc. 2017 Jul 27;5(30). pii: e00677-17. doi: 10.1128/genomeA.00677-17.


An R-CaMP1.07 reporter mouse for cell-type-specific expression of a sensitive red fluorescent calcium indicator.

Bethge P, Carta S, Lorenzo DA, Egolf L, Goniotaki D, Madisen L, Voigt FF, Chen JL, Schneider B, Ohkura M, Nakai J, Zeng H, Aguzzi A, Helmchen F.

PLoS One. 2017 Jun 22;12(6):e0179460. doi: 10.1371/journal.pone.0179460. eCollection 2017.


Orthodontic force application upregulated pain-associated prostaglandin-I2/PGI2-receptor/TRPV1 pathway-related gene expression in rat molars.

Ohkura M, Ohkura N, Yoshiba N, Yoshiba K, Ida-Yonemochi H, Ohshima H, Saito I, Okiji T.

Odontology. 2018 Jan;106(1):2-10. doi: 10.1007/s10266-017-0309-2. Epub 2017 Jun 19.


A new platform for long-term tracking and recording of neural activity and simultaneous optogenetic control in freely behaving Caenorhabditis elegans.

Gengyo-Ando K, Kagawa-Nagamura Y, Ohkura M, Fei X, Chen M, Hashimoto K, Nakai J.

J Neurosci Methods. 2017 Jul 15;286:56-68. doi: 10.1016/j.jneumeth.2017.05.017. Epub 2017 May 12.


Efficacy of Varenicline for Cigarette Reduction Before Quitting in Japanese Smokers: A Subpopulation Analysis of the Reduce to Quit Trial.

Nakamura M, Abe M, Ohkura M, Treadow J, Yu CR, Park PW.

Clin Ther. 2017 Apr;39(4):863-872. doi: 10.1016/j.clinthera.2017.03.007. Epub 2017 Mar 30.


Environmental Growth Conditions of Trichoderma spp. Affects Indole Acetic Acid Derivatives, Volatile Organic Compounds, and Plant Growth Promotion.

Nieto-Jacobo MF, Steyaert JM, Salazar-Badillo FB, Nguyen DV, Rostás M, Braithwaite M, De Souza JT, Jimenez-Bremont JF, Ohkura M, Stewart A, Mendoza-Mendoza A.

Front Plant Sci. 2017 Feb 9;8:102. doi: 10.3389/fpls.2017.00102. eCollection 2017.


Allogeneic transplantation of iPS cell-derived cardiomyocytes regenerates primate hearts.

Shiba Y, Gomibuchi T, Seto T, Wada Y, Ichimura H, Tanaka Y, Ogasawara T, Okada K, Shiba N, Sakamoto K, Ido D, Shiina T, Ohkura M, Nakai J, Uno N, Kazuki Y, Oshimura M, Minami I, Ikeda U.

Nature. 2016 Oct 20;538(7625):388-391. doi: 10.1038/nature19815. Epub 2016 Oct 10.


The integrative role of orexin/hypocretin neurons in nociceptive perception and analgesic regulation.

Inutsuka A, Yamashita A, Chowdhury S, Nakai J, Ohkura M, Taguchi T, Yamanaka A.

Sci Rep. 2016 Jul 7;6:29480. doi: 10.1038/srep29480.


Olfactory receptor for prostaglandin F2α mediates male fish courtship behavior.

Yabuki Y, Koide T, Miyasaka N, Wakisaka N, Masuda M, Ohkura M, Nakai J, Tsuge K, Tsuchiya S, Sugimoto Y, Yoshihara Y.

Nat Neurosci. 2016 Jul;19(7):897-904. doi: 10.1038/nn.4314. Epub 2016 May 30.



Ohkura M, Worley JJ, Hughes-Hallett JE, Fisher JS, Love BC, Arnold AE, Orbach MJ.

J Zoo Wildl Med. 2016 Mar;47(1):341-6. doi: 10.1638/2015-0123.1.


Calcium imaging reveals glial involvement in transcranial direct current stimulation-induced plasticity in mouse brain.

Monai H, Ohkura M, Tanaka M, Oe Y, Konno A, Hirai H, Mikoshiba K, Itohara S, Nakai J, Iwai Y, Hirase H.

Nat Commun. 2016 Mar 22;7:11100. doi: 10.1038/ncomms11100.


Improvement of emotional healthcare system with stress detection from ECG signal.

Tivatansakul S, Ohkura M.

Conf Proc IEEE Eng Med Biol Soc. 2015;2015:6792-5. doi: 10.1109/EMBC.2015.7319953.


A labile hydride strategy for the synthesis of heavily nitridized BaTiO3.

Yajima T, Takeiri F, Aidzu K, Akamatsu H, Fujita K, Yoshimune W, Ohkura M, Lei S, Gopalan V, Tanaka K, Brown CM, Green MA, Yamamoto T, Kobayashi Y, Kageyama H.

Nat Chem. 2015 Dec;7(12):1017-23. doi: 10.1038/nchem.2370. Epub 2015 Oct 19.


Comparison of genetically encoded calcium indicators for monitoring action potentials in mammalian brain by two-photon excitation fluorescence microscopy.

Podor B, Hu YL, Ohkura M, Nakai J, Croll R, Fine A.

Neurophotonics. 2015 Apr;2(2):021014. doi: 10.1117/1.NPh.2.2.021014. Epub 2015 Apr 30.


A Top-Down Cortical Circuit for Accurate Sensory Perception.

Manita S, Suzuki T, Homma C, Matsumoto T, Odagawa M, Yamada K, Ota K, Matsubara C, Inutsuka A, Sato M, Ohkura M, Yamanaka A, Yanagawa Y, Nakai J, Hayashi Y, Larkum ME, Murayama M.

Neuron. 2015 Jun 3;86(5):1304-16. doi: 10.1016/j.neuron.2015.05.006. Epub 2015 May 21.


Generation and Imaging of Transgenic Mice that Express G-CaMP7 under a Tetracycline Response Element.

Sato M, Kawano M, Ohkura M, Gengyo-Ando K, Nakai J, Hayashi Y.

PLoS One. 2015 May 6;10(5):e0125354. doi: 10.1371/journal.pone.0125354. eCollection 2015.


Analysis of salivary cortisol levels to determine the association between depression level and differences in circadian rhythms of shift-working nurses.

Baba M, Ohkura M, Koga K, Nishiuchi K, Herrera LR, Matsuse R, Inoue T.

J Occup Health. 2015;57(3):237-44. doi: 10.1539/joh.14-0079-OA. Epub 2015 Mar 6.


JSAP1/JIP3 and JLP regulate kinesin-1-dependent axonal transport to prevent neuronal degeneration.

Sato T, Ishikawa M, Mochizuki M, Ohta M, Ohkura M, Nakai J, Takamatsu N, Yoshioka K.

Cell Death Differ. 2015 Aug;22(8):1260-74. doi: 10.1038/cdd.2014.207. Epub 2015 Jan 9.


Water-soluble jack-knife prawn extract inhibits 5-hydroxytryptamine-induced vasoconstriction and platelet aggregation in humans.

Gamoh S, Kanai T, Tanaka-Totoribe N, Ohkura M, Kuwabara M, Nakamura E, Yokota A, Yamasaki T, Watanabe A, Hayashi M, Fujimoto S, Yamamoto R.

Food Funct. 2015 Feb;6(2):444-9. doi: 10.1039/c4fo00716f.


Rational design of a high-affinity, fast, red calcium indicator R-CaMP2.

Inoue M, Takeuchi A, Horigane S, Ohkura M, Gengyo-Ando K, Fujii H, Kamijo S, Takemoto-Kimura S, Kano M, Nakai J, Kitamura K, Bito H.

Nat Methods. 2015 Jan;12(1):64-70. doi: 10.1038/nmeth.3185. Epub 2014 Nov 24.


Reward-timing-dependent bidirectional modulation of cortical microcircuits during optical single-neuron operant conditioning.

Hira R, Ohkubo F, Masamizu Y, Ohkura M, Nakai J, Okada T, Matsuzaki M.

Nat Commun. 2014 Nov 24;5:5551. doi: 10.1038/ncomms6551.


Imaging intraorganellar Ca2+ at subcellular resolution using CEPIA.

Suzuki J, Kanemaru K, Ishii K, Ohkura M, Okubo Y, Iino M.

Nat Commun. 2014 Jun 13;5:4153. doi: 10.1038/ncomms5153.


Predictors of lapse and relapse to smoking in successful quitters in a varenicline post hoc analysis in Japanese smokers.

Nakamura M, Oshima A, Ohkura M, Arteaga C, Suwa K.

Clin Ther. 2014 Jun 1;36(6):918-27. doi: 10.1016/j.clinthera.2014.03.013. Epub 2014 May 5.


Large-scale imaging of subcellular calcium dynamics of cortical neurons with G-CaMP6-actin.

Kobayashi C, Ohkura M, Nakai J, Matsuki N, Ikegaya Y, Sasaki T.

Neuroreport. 2014 May 7;25(7):501-6. doi: 10.1097/WNR.0000000000000126.


[Ca(2+) imaging of neurons and astrocytes with genetically encoded Ca(2+) indicators].

Ohkura M, Nakai J.

Nihon Yakurigaku Zasshi. 2013 Nov;142(5):226-30. Review. Japanese. No abstract available.


Principal component analysis of odor coding at the level of third-order olfactory neurons in Drosophila.

Hiroi M, Ohkura M, Nakai J, Masuda N, Hashimoto K, Inoue K, Fiala A, Tabata T.

Genes Cells. 2013 Dec;18(12):1070-81. doi: 10.1111/gtc.12094. Epub 2013 Oct 7.


A proposal for a drug information database and text templates for generating package inserts.

Okuya R, Kimura M, Ohkura M, Tsuchiya F.

Drug Healthc Patient Saf. 2013 Jul 29;5:161-9. doi: 10.2147/DHPS.S43303. Print 2013.


Pretreatment of donor islets with the Na(+) /Ca(2+) exchanger inhibitor improves the efficiency of islet transplantation.

Mera T, Itoh T, Kita S, Kodama S, Kojima D, Nishinakamura H, Okamoto K, Ohkura M, Nakai J, Iyoda T, Iwamoto T, Matsuda T, Baba A, Omori K, Ono J, Watarai H, Taniguchi M, Yasunami Y.

Am J Transplant. 2013 Aug;13(8):2154-60. doi: 10.1111/ajt.12306. Epub 2013 Jun 7.


[Development of the genetically encoded red fluorescent Ca(2+) indicator R-CaMP1.07].

Ohkura M, Nakai J.

Nihon Yakurigaku Zasshi. 2013 Mar;141(3):175. Japanese. No abstract available.


Real-time visualization of neuronal activity during perception.

Muto A, Ohkura M, Abe G, Nakai J, Kawakami K.

Curr Biol. 2013 Feb 18;23(4):307-11. doi: 10.1016/j.cub.2012.12.040. Epub 2013 Jan 31.


Genetically encoded green fluorescent Ca2+ indicators with improved detectability for neuronal Ca2+ signals.

Ohkura M, Sasaki T, Sadakari J, Gengyo-Ando K, Kagawa-Nagamura Y, Kobayashi C, Ikegaya Y, Nakai J.

PLoS One. 2012;7(12):e51286. doi: 10.1371/journal.pone.0051286. Epub 2012 Dec 11.


An open-label long-term phase III extension trial to evaluate the safety and efficacy of pregabalin in Japanese patients with fibromyalgia.

Ohta H, Oka H, Usui C, Ohkura M, Suzuki M, Nishioka K.

Mod Rheumatol. 2013 Nov;23(6):1108-15. doi: 10.1007/s10165-012-0803-x. Epub 2012 Dec 1.


Oxyhydrides of (Ca,Sr,Ba)TiO3 perovskite solid solutions.

Sakaguchi T, Kobayashi Y, Yajima T, Ohkura M, Tassel C, Takeiri F, Mitsuoka S, Ohkubo H, Yamamoto T, Kim Je, Tsuji N, Fujihara A, Matsushita Y, Hester J, Avdeev M, Ohoyama K, Kageyama H.

Inorg Chem. 2012 Nov 5;51(21):11371-6. doi: 10.1021/ic300859n. Epub 2012 Oct 19.


A randomized, double-blind, multicenter, placebo-controlled phase III trial to evaluate the efficacy and safety of pregabalin in Japanese patients with fibromyalgia.

Ohta H, Oka H, Usui C, Ohkura M, Suzuki M, Nishioka K.

Arthritis Res Ther. 2012 Oct 12;14(5):R217. doi: 10.1186/ar4056.


[Gender differences in the relationship between sleep and depression among elderly people residing at home].

Tanaka M, Kusaka M, Tagaya H, Ohkura M, Watanabe C.

Nihon Koshu Eisei Zasshi. 2012 Apr;59(4):239-50. Japanese.


An improved genetically encoded red fluorescent Ca2+ indicator for detecting optically evoked action potentials.

Ohkura M, Sasaki T, Kobayashi C, Ikegaya Y, Nakai J.

PLoS One. 2012;7(7):e39933. doi: 10.1371/journal.pone.0039933. Epub 2012 Jul 10.


An oxyhydride of BaTiO3 exhibiting hydride exchange and electronic conductivity.

Kobayashi Y, Hernandez OJ, Sakaguchi T, Yajima T, Roisnel T, Tsujimoto Y, Morita M, Noda Y, Mogami Y, Kitada A, Ohkura M, Hosokawa S, Li Z, Hayashi K, Kusano Y, Kim Je, Tsuji N, Fujiwara A, Matsushita Y, Yoshimura K, Takegoshi K, Inoue M, Takano M, Kageyama H.

Nat Mater. 2012 Apr 15;11(6):507-11. doi: 10.1038/nmat3302.


Analysis on descriptions of precautionary statements in package inserts of medicines.

Nabeta K, Kimura M, Ohkura M, Tsuchiya F.

Drug Healthc Patient Saf. 2012;4:19-25. doi: 10.2147/DHPS.S25921. Epub 2012 Feb 24.

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