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Regulation of Blood Pressure and Glucose Metabolism Induced by L
Ardiansyah et al. Nutrition & Metabolism 2011, 8:45 http://www.nutritionandmetabolism.com/content/8/1/45 RESEARCH Open Access Regulation of blood pressure and glucose metabolism induced by L-tryptophan in stroke- prone spontaneously hypertensive rats Ardiansyah1,2*, Hitoshi Shirakawa1, Yuto Inagawa1, Takuya Koseki3 and Michio Komai1 Abstract Background: Amino acids have been reported to act as modulators of various regulatory processes and to provide new therapeutic applications for either the prevention or treatment of metabolic disorders. The purpose of the present study is to investigate the effects of single oral dose administration and a continuous treatment of L- tryptophan (L-Trp) on the regulation of blood pressure and glucose metabolism in stroke-prone spontaneously hypertensive rats (SHRSP). Methods: First, male 9-week-old SHRSP were administered 100 mg L-Trp·kg-1 body weight in saline to the L-Trp group and 0.9% saline to the control group via a gastric tube as a single oral dose of L-Trp. Second, three groups of SHRSP were fed an AIN-93M-based diet supplemented with L-tryptophan (L-Trp) (0, 200, or 1000 mg·kg-1 diet) for 3 weeks as continuous treatment of L-Trp. Results: Single oral dose administration of L-Trp improved blood pressure, blood glucose, and insulin levels. Blood pressure, blood glucose, and insulin levels improved significantly in the L-Trp treatment groups. The administration of L-Trp also significantly increased plasma nitric oxide and serotonin levels. Conclusion: L-Trp by both single oral dose administration and continuous treatment improves glucose metabolism and blood pressure in SHRSP. -
Japanese Delegation of Athletics Team for Doha,Qatar 2019 27 SEP-06 OCT
Japanese Delegation of Athletics Team For Doha,Qatar 2019 27 SEP-06 OCT IAAF World Championships in Athletics-Doha,Qatar 第 17 回 IAAF 世界陸上競技選手権大会 ( カタ ー ル ・ドー ハ ) ❶ Hirooki ARAI(L)& Kai KOBAYASHI(R) Play Back London 2017 [プレイバック・ロンドン大会2017] 前回の2017年ロンドン大会では男子50kmW勢が躍動。 荒井広宙が2位、小林快が3位とダブル表彰台に上り、 丸尾知司も5位に入りました。また、男子4×100mR も3位に入り、世界選手権では初のメダルを獲得。また、 サニブラウン アブデルハキームは男子100mで準決勝、 200mでは決勝に進出(7位)。日本はメダル3、入賞2 の成績を収めました。 ❷ Men’s 4×100m Relay ❸ Satoshi MARUO ❹ Abdul Hakim SANIBROWN Japanese Medalists & Prizewinners in London 2017 Silver Athlete Record Men 50kmW Hirooki ARAI ❶Left 3.41.17 Bronze Men 50kmW Kai KOBAYASHI ❶Right 3.41.19 S.TADA,S.IIZUKA, Men 4×100mR 38.04 Y.KIRYU,K.FUJIMITSU❷ 5th Men 50kmW Satoshi MARUO❸ 3.43.03 7th Men 200m Abdul Hakim SANIBROWN❹ 20.63 02 Message[メッセージ] thletes aiming at the top of the world will be gathering in the blazing city Doha. The IAAF World Athletics Championships Doha 2019 is a great stageA for you to challenge the “power and skill” of the world, and it has an important meaning as a prelude to 2020 Tokyo Olympic Games which is quickly approaching. Expand your athletic ability you have gained through competition experiences and years of hard training here in Doha and make a huge step towards the grand stage. Along with your athletic ability, human quality is also very important. Athletics is an individual sport except for relays, but it is necessary to have Team JAPAN awareness. The consciousness of competing as a team will also enhance your human quality, and that rise helps to improve individual competitiveness. For athletes and staff, I ask you to unite by respecting each other, and have the spirit of “One for All, All for One”. -
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Yildiz et al. Neural Development (2019) 14:5 https://doi.org/10.1186/s13064-019-0129-x RESEARCH ARTICLE Open Access Zebrafish prdm12b acts independently of nkx6.1 repression to promote eng1b expression in the neural tube p1 domain Ozge Yildiz1, Gerald B. Downes2 and Charles G. Sagerström1* Abstract Background: Functioning of the adult nervous system depends on the establishment of neural circuits during embryogenesis. In vertebrates, neurons that make up motor circuits form in distinct domains along the dorsoventral axis of the neural tube. Each domain is characterized by a unique combination of transcription factors (TFs) that promote a specific fate, while repressing fates of adjacent domains. The prdm12 TF is required for the expression of eng1b and the generation of V1 interneurons in the p1 domain, but the details of its function remain unclear. Methods: We used CRISPR/Cas9 to generate the first germline mutants for prdm12 and employed this resource, together with classical luciferase reporter assays and co-immunoprecipitation experiments, to study prdm12b function in zebrafish. We also generated germline mutants for bhlhe22 and nkx6.1 to examine how these TFs act with prdm12b to control p1 formation. Results: We find that prdm12b mutants lack eng1b expression in the p1 domain and also possess an abnormal touch-evoked escape response. Using luciferase reporter assays, we demonstrate that Prdm12b acts as a transcriptional repressor. We also show that the Bhlhe22 TF binds via the Prdm12b zinc finger domain to form a complex. However, bhlhe22 mutants display normal eng1b expression in the p1 domain. While prdm12 has been proposed to promote p1 fates by repressing expression of the nkx6.1 TF, we do not observe an expansion of the nkx6.1 domain upon loss of prdm12b function, nor is eng1b expression restored upon simultaneous loss of prdm12b and nkx6.1. -
Sexual Dimorphism in the Meiotic Requirement for PRDM9: a Mammalian Evolutionary
bioRxiv preprint doi: https://doi.org/10.1101/2020.03.10.985358; this version posted March 13, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. 1 1 Sexual dimorphism in the meiotic requirement for PRDM9: a mammalian evolutionary 2 safeguard 3 Short title: 4 Sex-limited requirement of PRDM9 in mice 5 One Sentence Summary: 6 Sex-specific modulation of a meiotic DNA damage checkpoint limits the requirement for PRDM9 in 7 mammalian fertility. 8 9 Authors 10 Natalie R Powers1, Beth L Dumont1, Chihiro Emori1, Raman Akinyanju Lawal1, Catherine Brunton1, Ken 11 Paigen1, Mary Ann Handel1, Ewelina Bolcun-Filas1, Petko M Petkov1, and Tanmoy Bhattacharyya1,* 12 1. The Jackson Laboratory, 600 Main Street, Bar Harbor, Maine 04609, USA. 13 *Correspondence to: [email protected] 14 Abstract: 15 In many mammals, genomic sites for recombination are determined by histone methyltransferase PRMD9. Mice 16 lacking PRDM9 are infertile, but instances of fertility or semi-fertility in the absence of PRDM9 have been 17 reported in mice, canines and a human female. Such findings raise the question of how the loss of PRDM9 is 18 circumvented to maintain reproductive fitness. We show that genetic background and sex-specific modifiers can 19 obviate the requirement for PRDM9 in mice. Specifically, the meiotic DNA damage checkpoint protein CHK2 20 acts as a modifier allowing female-specific fertility in the absence of PRDM9. We also report that in the 21 absence of PRDM9, a PRDM9-independent recombination system is compatible with female meiosis and 22 fertility, suggesting sex-specific regulation of meiotic recombination, a finding with implications for speciation. -
Serotonin Regulates Glucose-Stimulated Insulin Secretion from Pancreatic Β Cells During Pregnancy
Serotonin regulates glucose-stimulated insulin secretion from pancreatic β cells during pregnancy Mica Ohara-Imaizumia,1, Hail Kimb,c,1, Masashi Yoshidad, Tomonori Fujiwarae, Kyota Aoyagia, Yukiko Toyofukuf, Yoko Nakamichia, Chiyono Nishiwakia, Tadashi Okamurag, Toyoyoshi Uchidaf, Yoshio Fujitanif, Kimio Akagawae, Masafumi Kakeid, Hirotaka Watadaf, Michael S. Germanc,h,2, and Shinya Nagamatsua,2 Departments of aBiochemistry and eCell Physiology Kyorin University School of Medicine, Mitaka, Tokyo 181-8611, Japan; bGraduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea; cDiabetes Center and Hormone Research Institute and hDepartment of Medicine, University of California, San Francisco, CA 94143; dFirst Department of Medicine, Saitama Medical Center, Jichi Medical University School of Medicine, Saitama 337-8503, Japan; fDepartment of Metabolism and Endocrinology, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan; and gSection of Animal Models, Department of Infectious Diseases, Research Institute, National Center for Global Health and Medicine, Tokyo 162-8655, Japan Edited* by William J. Rutter, Synergenics, LLC, Burlingame, CA, and approved October 18, 2013 (received for review June 13, 2013) In preparation for the metabolic demands of pregnancy, β cells in Htr3b encode subunits of the serotonin-gated cation channel Htr3 the maternal pancreatic islets increase both in number and in glu- (19, 20). Five identical Htr3a subunits or a mixture of Htr3a and cose-stimulated insulin secretion (GSIS) per cell. Mechanisms have Htr3b make up a functional Htr3 channel (21). The channel is pre- + + been proposed for the increased β cell mass, but not for the in- dominantly Na -andK -selective, and its opening in response to creased GSIS. -
Anemia Is Associated with Blunted Response to Β-Blocker Therapy Using Carvedilol ― Insights from Japanese Chronic Heart Failure (J-CHF) Study ―
Circ J 2018; 82: 691 – 698 Supplementary File doi: 10.1253/circj.CJ-17-0442 Anemia Is Associated With Blunted Response to β-Blocker Therapy Using Carvedilol ― Insights From Japanese Chronic Heart Failure (J-CHF) Study ― Yuji Nagatomo, MD; Tsutomu Yoshikawa, MD; Hiroshi Okamoto, MD; Akira Kitabatake, MD; Masatsugu Hori, MD on behalf of J-CHF Investigators ——— Supplementary File 1 ——— • Haruki Musha (Yokohama City Seibu Hospital) Appendix S1. The J-CHF Program Committees and Members • Toshiaki Ebina (Yokohama City University Yokohama Seibu Executive Committee Hospital) Masatsugu Hori, Satoshi Ogawa, Ryozo Nagai, Masanori Matsuzaki, • Ichiro Michishita (Yokohama Kyosai Hospital) Yasuo Ohashi, Hitonobu Tomoike, Hiroshi Okamoto. • Tetsuo Takahashi (Yokohama City Hospital) Steering Committee • Satoshi Umemura (Yokohama City University School of Medicine) Hiroyuki Tsutsui, Iwao Yamaguchi, Ryozo Nagai, Satoshi Ogawa, • Toyoji Nemoto (National Sagamihara Hospital) Tsutomu Yoshikawa, Nobuhisa Hagiwara, Michihiro Yoshimura, • Tohru Izumi (Kitasato University School of Medicine) Katsuo Kanmatsuse, Satoshi Umemura, Minoru Takekoshi, Yoshifusa • Hideo Himeno (Fujisawa City Hospital) Aizawa, Hisayoshi Fujiwara, Masatsugu Hori, Kunio Miyatake, • Teruhisa Tanabe (Tokai University School of Medicine) Junichi Yoshikawa, Mitsuhiro Yokoyama, Toru Kita, Masanori • Hiroyuki Daida (Juntendo University) Matsuzaki, Toru Ohe, Yoshinori Doi, Takao Higaki, Imaizumi • Mitsuaki Isobe (Tokyo Medical and Dental University) Tsutomu. • Koichiro Kinugawa (Tokyo University -
Atrial Fibrillation (ATRIA) Study
European Journal of Human Genetics (2014) 22, 297–306 & 2014 Macmillan Publishers Limited All rights reserved 1018-4813/14 www.nature.com/ejhg REVIEW Atrial fibrillation: the role of common and rare genetic variants Morten S Olesen*,1,2,4, Morten W Nielsen1,2,4, Stig Haunsø1,2,3 and Jesper H Svendsen1,2,3 Atrial fibrillation (AF) is the most common cardiac arrhythmia affecting 1–2% of the general population. A number of studies have demonstrated that AF, and in particular lone AF, has a substantial genetic component. Monogenic mutations in lone and familial AF, although rare, have been recognized for many years. Presently, mutations in 25 genes have been associated with AF. However, the complexity of monogenic AF is illustrated by the recent finding that both gain- and loss-of-function mutations in the same gene can cause AF. Genome-wide association studies (GWAS) have indicated that common single-nucleotide polymorphisms (SNPs) have a role in the development of AF. Following the first GWAS discovering the association between PITX2 and AF, several new GWAS reports have identified SNPs associated with susceptibility of AF. To date, nine SNPs have been associated with AF. The exact biological pathways involving these SNPs and the development of AF are now starting to be elucidated. Since the first GWAS, the number of papers concerning the genetic basis of AF has increased drastically and the majority of these papers are for the first time included in a review. In this review, we discuss the genetic basis of AF and the role of both common and rare genetic variants in the susceptibility of developing AF. -
Chromatin Dynamics and Histone Modifications in the Intestinal Microbiota-Host Crosstalk
Journal Pre-proof Chromatin dynamics and histone modifications in the intestinal microbiota-host crosstalk Rachel Fellows, Patrick Varga-Weisz PII: S2212-8778(19)30956-1 DOI: https://doi.org/10.1016/j.molmet.2019.12.005 Reference: MOLMET 925 To appear in: Molecular Metabolism Received Date: 13 October 2019 Revised Date: 8 December 2019 Accepted Date: 10 December 2019 Please cite this article as: Fellows R, Varga-Weisz P, Chromatin dynamics and histone modifications in the intestinal microbiota-host crosstalk, Molecular Metabolism, https://doi.org/10.1016/ j.molmet.2019.12.005. This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. © 2019 Published by Elsevier GmbH. MOLMET-D-19-00091-rev Chromatin dynamics and histone modifications in the intestinal microbiota- host crosstalk Rachel Fellows 1 and Patrick Varga-Weisz 1,2 1: Babraham Institute, Babraham, Cambridge CB22 3AT, UK 2: School of Life Sciences, University of Essex, Colchester, CO4 3SQ, UK Correspondence: [email protected] Abstract Background The microbiota in our gut is an important component of normal physiology that has co-evolved with us from the earliest multicellular organisms. -
Japanese Delegation of Athleticsteam for Eugene, UNITED STATES 2014 22-27 JUL
Japanese Delegation of AthleticsTeam for Eugene, UNITED STATES 2014 22-27 JUL ⓒ Alamy/ アフロ Eugene ⓒ AP/ アフロ Hayward field stadium IAAF World Junior Championships in Athletics - Eugene, UNITED STATES IAAF 世界ジュニア陸上競技選手権大会(ユージン /2014) Japan Association of Athletics Federations 2-7-1 Nishi-Shinjuku.shinjuku-ku,Tokyo,163-0717 Japan Tel 81-3-5321-6580 Official site: http://www.jaaf.or.jp/ Playback Barcelona 2012 [プレイバック・バルセロナ 2012] 1992年のバルセロナ・オリンピックのメイン 会場となったエスタディ・オリンピック・リュ イス・コンパニスで開催された第14回世界ジュ ニア陸上選手権大会。当時はまだ生まれていな かった選手たちが世界と戦い、メダル2個を含 む入賞9の成績を残した。 400mHの松本岳大(❶、加古川東高・兵庫)は、 準決勝で自己タイ(50秒76)をマークすると、決 勝でも50秒41まで記録を伸ばして、銀メダルを 獲得。男子4×100mR(❷)では大瀨戸一馬(小 倉東高・福岡)、橋元晃志(川薩清修館高・鹿児 島)、ケンブリッジ飛鳥(日本大)、金森和貴(松 江北高・島根)のゴールデン・エイジがジュニ ア日本新となる39秒01で予選を通過すると、決 勝でも39秒02と好走して銅メダルを獲得した。 メダルには届かなかったものの、10000mW の西塔拓己(❸)は40分19秒10のジュニア日本 新で4位入賞、男子10000mでは村山謙太(駒澤 大)、横手健(明治大)が6位と7位に入賞、女 子3000mの上原美幸(鹿児島女高)は8位、男子 110mHの田中新也(筑波大)は7位と力を発揮。 競歩の西塔は、翌年の世界選手権20kmWでオ リンピックを含めて競歩史上最高成績に並ぶ6 位に入賞。世界ジュニアをステップに大きく飛 躍した。 ※所属は当時のもの ❷ Japan Men 4×100mR 3rd ❶ Takahiro MATSUMOTO Men 400mH 2nd Japanese Prizewinners in World Junior Championships Barcelona 2012 バルセロナ大会日本人入賞者 Event Pos Mark Name/Team 氏名(所属) Men 10000m 6 th 29:40.56 Kenta MURAYAMA 村山 謙太(駒澤大) Men 10000m 7 th 29:41.81 Ken YOKOTE 横手 健(明治大) Men 110mH(99.1cm) 7 th 13.72 -1.0 Shinya TANAKA 田中 新也(筑波大) Men 400mH 2 nd 50.41 Takahiro MATSUMOTO(❶) 松本 岳大(加古川東高) Men 10000mW 4 th 40:19.10 Takumi SAITO(❸) 西塔 拓己(東洋大) 〔大瀨戸一馬・橋元 晃志 × (❷) Men 4 100mR 3 rd 39.02 Japan ケンブリッジ飛鳥・金森 和貴〕 〔横山 直広⇒木村 賢太 × Men 4 400mR 7 th 3:09.67 Japan 上妻 昇太⇒木村 和史〕 Women 3000m 8 th 9:21.81 Miyuki UEHARA 上原 美幸(鹿児島女高) Women 10000mW 8 th 4:04.92 Nozomi YAGI 八木 望(熊谷女高) ※所属は当時のもの ❸ Takumi SAITO Men 10000mW 4th 02 Photo/©Agence SHOT MESSAGE [メッセージ] nternational Association of Athletics Federations (IAAF) is comprised of 212 member countries/territory, and that number exceeds those of the International OlympicI Committee (IOC) and International Federation of Association Football (FIFA). -
Engineering Biosynthetic Excitable Tissues from Unexcitable Cells for Electrophysiological and Cell Therapy Studies
ARTICLE Received 11 Nov 2010 | Accepted 5 Apr 2011 | Published 10 May 2011 DOI: 10.1038/ncomms1302 Engineering biosynthetic excitable tissues from unexcitable cells for electrophysiological and cell therapy studies Robert D. Kirkton1 & Nenad Bursac1 Patch-clamp recordings in single-cell expression systems have been traditionally used to study the function of ion channels. However, this experimental setting does not enable assessment of tissue-level function such as action potential (AP) conduction. Here we introduce a biosynthetic system that permits studies of both channel activity in single cells and electrical conduction in multicellular networks. We convert unexcitable somatic cells into an autonomous source of electrically excitable and conducting cells by stably expressing only three membrane channels. The specific roles that these expressed channels have on AP shape and conduction are revealed by different pharmacological and pacing protocols. Furthermore, we demonstrate that biosynthetic excitable cells and tissues can repair large conduction defects within primary 2- and 3-dimensional cardiac cell cultures. This approach enables novel studies of ion channel function in a reproducible tissue-level setting and may stimulate the development of new cell-based therapies for excitable tissue repair. 1 Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708, USA. Correspondence and requests for materials should be addressed to N.B. (email: [email protected]). NatURE COMMUNicatiONS | 2:300 | DOI: 10.1038/ncomms1302 | www.nature.com/naturecommunications © 2011 Macmillan Publishers Limited. All rights reserved. ARTICLE NatUre cOMMUNicatiONS | DOI: 10.1038/ncomms1302 ll cells express ion channels in their membranes, but cells a b with a significantly polarized membrane that can undergo e 0 a transient all-or-none membrane depolarization (action A 1 potential, AP) are classified as ‘excitable cells’ . -
PARRIS WASHINGTON MSNS Candidate
Thesis Defense April 13, 2018; 2:30 PM Distinguishing the Transcriptional Responses Between the Human and Mouse Circadian Clock Resetting Mechanisms PARRIS WASHINGTON MSNS Candidate Under the direction of Jason DeBruyne, Ph.D. Associate Professor, Department of Pharmacology & Toxicology In partial fulfillment of the requirements for the degree Master of Science in Neuroscience F-233_MRC (Building F) Neuroscience Institute Conference Room 720 Westview Drive SW, Atlanta, GA 30310 Graduate Education in Biomedical Sciences Final Examination of PARRIS WASHINGTON For the Degree MASTER OF SCIENCE IN NEUROSCIENCE DISSERTATION COMMITTEE Jason DeBruyne, Ph.D., Research Advisor Department of Pharmacology & Toxicology Morehouse School of Medicine An Zhou, Ph.D. Department of Neurobiology Morehouse School of Medicine Alec Davidson, Ph.D. Department of Neurobiology Morehouse School of Medicine PROFESSOR IN CHARGE OF RESEARCH Jason DeBruyne, Ph.D. Department of Pharmacology & Toxicology Morehouse School of Medicine FIELDS OF STUDY Major Subject: Neuroscience Biomedical Science Presentation I Critical Thinking & Scientific Communication Critical Thinking in Neuroscience Essentials in Neuroscience I Essentials in Neuroscience II Essentials in Neuroscience III Neuroscience Lab Rotation Neuroscience Lab Techniques Research Data Analysis Scientific Integrity Seminar in Biomedical Sciences I Seminar in Biomedical Sciences II Thesis Research Research Focus: Chronobiology, Entrainment, Transcriptional Responses of Human and Mouse Circadian Clock Resetting Mechanisms -
Downloaded from the Gene
bioRxiv preprint doi: https://doi.org/10.1101/2020.07.23.218768; this version posted July 24, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. An atlas of lamina-associated chromatin across thirteen human cell types reveals cell-type-specific and multiple subtypes of peripheral heterochromatin a,b c d e Kathleen C. Keough *, Parisha P. Shah*, Nadeera M. Wickramasinghe, Carolyn E. Dundes, e e b e d Angela Chen, Rachel E.A. Salomon, Sean Whalen, Kyle M. Loh, Nicole Dubois, Katherine a,b,f c S. Pollard **, Rajan Jain** a b University of California, San Francisco, CA 94117, USA; Gladstone Institute of Data Science and Biotechnology, c San Francisco, CA 94158, USA; Departments of Medicine and Cell and Developmental Biology, Penn CVI, Perelman d School of Medicine, University of Pennsylvania, Philadelphia, PA 19104; Department of Cell, Developmental and e Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029; Department of Developmental Biology and Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, f Stanford, CA 94305 USA; Chan Zuckerberg Biohub, San Francisco, CA 94158, USA Corresponding authors: Katherine S. Pollard and Rajan Jain Katherine S. Pollard Gladstone Institutes 1650 Owens Street San Francisco, CA 94158 415-732-2711 [email protected] Rajan Jain 09-102 Smilow TRC 3400 Civic Center Blvd Philadelphia, PA 19104 215-573-3011 [email protected] *These authors contributed equally to this work. Running title: (above) Keywords: Lamin-associated domains, peripheral chromatin organization, heterochromatin, chromatin compartmentalization, 3D genome, cellular differentiation and development.