• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Effects of prenatal exposure to nanoparticles on reproductive systems in male offspring

Research Project

Project/Area Number 19K19424
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 58020:Hygiene and public health-related: including laboratory approach
Research InstitutionNational Institute of Health Sciences

Principal Investigator

Yokota Satoshi  国立医薬品食品衛生研究所, 毒性部, 主任研究官 (70706605)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords二酸化チタンナノ粒子 / 精子毒性 / ハイパーアクチベーション / tsRNA / 継世代影響 / 生殖毒性 / 発生毒性 / ナノドキシコロジー / DOHaD / POHaD / 世代影響 / 精子 / 精子機能評価 / 受精能 / 高分散ナノマテリアル / 生殖発生毒性 / Small non-coding RNA / マウス / 胎児期曝露 / 毒性試験 / 吸入曝露 / 気管内投与 / バイオマーカー / マイクロRNA
Outline of Research at the Start

本研究では、ナノマテリアルを妊娠期に曝露し、仔の雄性生殖への影響を解析し、そこで得られる精子の運動性変化を明らかにする。また、曝露の影響を受けた精子を正常の卵に受精させ得られた胚を用いて発生能を評価する。さらに、精子において発現するRNAと胚において発現するRNAを比較し、共通点を見いだすことで新たな生殖発生毒性マーカーを探索する。

Outline of Final Research Achievements

We observed significantly reduction of exposed F1 sperm capacitation. To explore whether the effects of F1 male were transmitted to F2 generation, we investigated changes in the expressions of one of the small non-coding RNA in the sperm of F1 mice. We identified some tsRNA expression changes of exposed mice in a dose-dependent manner. These result suggest that F1 male mediated developmental toxicity may be occurred. However, the F2 offspring born to F1 sires which gestationally exposed to titanium dioxide nanoparticles showed no changes in male reproductive systems. These data enable us to further investigate tsRNA expression changes involved in the transgenerational effects of paternally acquired epigenetic effects.

Academic Significance and Societal Importance of the Research Achievements

ナノ粒子胎児期曝露により生じるF1雄性生殖を介したF2世代に対する継世代影響に関する報告は限定的である。私たちは先行研究においてナノ銀の胎児期曝露による継世代毒性を明らかにしてきた。本研究における二酸化チタンナノ粒子胎児期曝露の実験においては、初めてF1精子の受精能獲得反応に及ぼす影響が明らかとなり、small RNAの中でもtsRNAの発現変動が認められた。当該RNAが次世代の雄性生殖系には影響を及ぼさなかったものの、他臓器の発生過程などに影響を及ぼしている可能性は否定できず、さらなる検証を行うことで、精子を介したエピゲノム毒性を明らかにすることが期待される。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (58 results)

All 2023 2022 2021 2020 2019 2018

All Journal Article (17 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 17 results,  Open Access: 13 results) Presentation (40 results) (of which Int'l Joint Research: 2 results,  Invited: 6 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] <i>Sasa veitchii</i> extracts protect phenytoin-induced cell proliferation inhibition in human lip mesenchymal cells through modulation of <i>miR-27b-5p </i>2023

    • Author(s)
      Tsukiboshi Y, Ogata A, Noguchi A, Mikami Y, Yokota S, Ogata K, Yoshioka H
    • Journal Title

      Biomedical Research

      Volume: 44 Issue: 2 Pages: 73-80

    • DOI

      10.2220/biomedres.44.73

    • ISSN
      0388-6107, 1880-313X
    • Year and Date
      2023-04-02
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Male mediated developmental toxicity2023

    • Author(s)
      横田 理、押尾 茂
    • Journal Title

      Developmental Origins of Health and Disease Research

      Volume: 11 Issue: 2 Pages: 103-108

    • DOI

      10.51067/dohad.11.2_103

    • ISSN
      2187-2562, 2187-2597
    • Year and Date
      2023-03-31
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Reactive blue 2 labels protamine in late-haploid spermatids and spermatozoa and can be used for toxicity evaluation2023

    • Author(s)
      Yokota S、Wakayama T、Miyaso H、Suga K、Fujinoki M、Kaneko S、Kitajima S
    • Journal Title

      bioRxiv

      Volume: posted Pages: 1-1

    • DOI

      10.1101/2023.03.06.531276

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Reactive Blue Dye: Highlights of Vacuoles in Human Sperm2023

    • Author(s)
      Kaneko S, Okada Y, Yokota S, Takamatsu K
    • Journal Title

      J Med Diagn Meth

      Volume: 12 (2)

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Involvement of Bmal1 and Clock in bromobenzene metabolite-induced diurnal renal toxicity2023

    • Author(s)
      Yoshioka H, Yokota S, Tominaga S, Tsukiboshi Y, Suzui M, Shinohara Y, Yoshikawa M, Sasaki H, Sasaki N, Maeda T, Miura N
    • Journal Title

      Biological Pharm Bull

      Volume: in press

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development of a non-invasive method for testicular toxicity evaluation using a novel compact magnetic resonance imaging system2023

    • Author(s)
      Yokota S, Miyaso H, Hirai T, Suga K, Wakayama T, Taquahashi Y, Kitajima S
    • Journal Title

      The Journal of Toxicological Sciences

      Volume: 48 Issue: 2 Pages: 57-64

    • DOI

      10.2131/jts.48.57

    • ISSN
      0388-1350, 1880-3989
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Neonatal corticosterone administration increases p27-positive Sertoli cell number and decreases Sertoli cell number in the testes of mice at prepuberty2022

    • Author(s)
      Miyaso Hidenobu、Takano Kaiya、Nagahori Kenta、Li Zhong-Lian、Kawata Shinichi、Kuramasu Miyuki、Ogawa Yuki、Yoshioka Hirotaka、Matsuno Yoshiharu、Yokota Satoshi、Itoh Masahiro
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 19402-19417

    • DOI

      10.1038/s41598-022-23695-8

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] In vivo genotoxicity assessment of a multiwalled carbon nanotube in a mouse ex vivo culture2022

    • Author(s)
      Horibata Katsuyoshi、Takasawa Hironao、Hojo Motoki、Taquahashi Yuhji、Shigano Miyuki、Yokota Satoshi、Kobayashi Norihiro、Sugiyama Kei-ichi、Honma Masamitsu、Hamada Shuichi
    • Journal Title

      Genes and Environment

      Volume: 44 Issue: 1 Pages: 24-24

    • DOI

      10.1186/s41021-022-00253-2

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Two-year intermittent exposure of a multiwalled carbon nanotube by intratracheal instillation induces lung tumors and pleural mesotheliomas in F344 rats2022

    • Author(s)
      Hojo M, Maeno A, Sakamoto Y, Ohnuki A, Tada Y, Yamamoto Y, Ikushima K, Inaba R, Suzuki J, Taquahashi Y, Yokota S, Kobayashi N, Ohnishi M, Goto Y, Numano T, Tsuda H, Alexander DB, Kanno J, Hirose A, Inomata A, Nakae D
    • Journal Title

      Particle and Fibre Toxicology

      Volume: 19 Issue: 1 Pages: 1-1

    • DOI

      10.1186/s12989-022-00478-7

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Quantitative Evaluation of Spermatogenesis by Histochemistry2022

    • Author(s)
      Wakayama T, Yokota S, Noguchi K, Sugawara T, Sonoda K Wanta A
    • Journal Title

      Histochemistry and Cell Biology

      Volume: 157(3) Issue: 3 Pages: 287-295

    • DOI

      10.1007/s00418-022-02080-6

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Evaluation of sperm epigenome as a molecular index of reproductive toxicity for elucidating the mechanisms of transgenerational inheritance2022

    • Author(s)
      Yokota S
    • Journal Title

      BIO Clinica

      Volume: 37(1) Pages: 41-47

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Sperm Morphology is Different in Two Common Mouse Strains2021

    • Author(s)
      Sekine N, Yokota S (Co-First), Oshio S
    • Journal Title

      BPB Reports

      Volume: 4 Issue: 5 Pages: 162-165

    • DOI

      10.1248/bpbreports.4.5_162

    • NAID

      130008095127

    • ISSN
      2434-432X
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Impact of chronic vitamin A excess on sperm morphogenesis in mice2021

    • Author(s)
      Yokota S, Sekine N, Wakayama T, Oshio S
    • Journal Title

      Andrology

      Volume: 9(5) Issue: 5 Pages: 1579-1592

    • DOI

      10.1111/andr.13013

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Spatiotemporal small non-coding RNAs expressed in the germline as an early biomarker of testicular toxicity and transgenerational effects caused by prenatal exposure to nanosized particles2021

    • Author(s)
      Yokota S, Takeda K, Oshio S
    • Journal Title

      Front. Toxicol.

      Volume: 3 Pages: 32-32

    • DOI

      10.3389/ftox.2021.691070

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Long-term dietary intake of excessive vitamin A impairs spermatogenesis in mice2019

    • Author(s)
      Yokota S、Shirahata T、Yusa J、Sakurai Y、Ito H、Oshio S
    • Journal Title

      The Journal of Toxicological Sciences

      Volume: 44 Issue: 4 Pages: 257-271

    • DOI

      10.2131/jts.44.257

    • NAID

      130007623319

    • ISSN
      0388-1350, 1880-3989
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 胎生期環境が多世代・継世代に及ぼす健康影響-精子エピゲノムに着目して-2019

    • Author(s)
      横田理
    • Journal Title

      日本アンドロロジー学会ニュースレター

      Volume: 19 Pages: 9-10

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluation of critical flicker-fusion frequency measurement methods using a touchscreen-based visual temporal discrimination task in the behaving mouse2018

    • Author(s)
      Nomura, Y., Ikuta, S., Yokota, S., Mita, J., Oikawa, M., Matsushima, H., Amano, A., Shimonomura, K., Seya, Y., & Koike, C.
    • Journal Title

      Neuroscience Research

      Volume: - Pages: 1-6

    • DOI

      10.1016/j.neures.2018.12.001

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 精子形成サイクルに着目したビタミンA過剰により生じる雄性生殖毒性の早期予測評価法の開発2023

    • Author(s)
      横田理、齊藤洋克、若山友彦、北嶋聡
    • Organizer
      日本薬学会第143年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] シスプラチンによる急性腎毒性と時計遺伝子の関与2023

    • Author(s)
      吉岡弘毅、富永サラ、酒々井眞澄、横田理、前田徹、三浦 伸彦
    • Organizer
      日本薬学会第143年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 多層カーボンナノチューブ(MWCNT)の2年間間欠気管内投与によるラット肺腫瘍及び中皮腫の発生2023

    • Author(s)
      前野愛、北條幹、坂本義光、湯澤勝廣、長澤明道、平松恭子、大貫文、稲葉涼太、鈴木仁、横田理、髙橋祐次、小林憲弘、広瀬明彦、猪又明子、中江大
    • Organizer
      第39回日本毒性病理学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ビタミンA過剰マウス精上皮周期に着目した精巣毒性評価法の開発2022

    • Author(s)
      横田理、齊藤洋克、若山友彦、北嶋聡
    • Organizer
      第62回日本先天異常学会学術集会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 生殖発生毒性評価の予測性向上に資する精子染色診断技術の開発2022

    • Author(s)
      横田理
    • Organizer
      第49回日本毒性学会学術年会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] ナノマテリアルの慢性吸入ばく露試験法の効率化2022

    • Author(s)
      髙橋祐次、横田理、広瀬明彦, 菅野純
    • Organizer
      第49回日本毒性学会学術年会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Preliminary report on a two-year, 4-week-interval intermittent whole body inhalation study of the multi-walled carbon nanotube (MWNT-7) in male mice2022

    • Author(s)
      Taquahashi Y, Yokota S, Tsuji M, Morita K, Suga K, Hojyo M, Hirose A, Kanno J
    • Organizer
      the 62st Annual Meeting of the Society of Toxicology
    • Related Report
      2022 Annual Research Report
  • [Presentation] ナノ銀の妊娠期曝露により生じる、雄性生殖系列を介した継世代・多世代影響2022

    • Author(s)
      横田理、関根尚、市瀬孝道、藤ノ木政勝、若山友彦、北嶋聡、押尾茂
    • Organizer
      第41回アンドロロジー学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 医薬品開発の迅速化・高精度化に資する新規雄性生殖毒性評価法の開発2022

    • Author(s)
      横田理、兼子智、宮宗秀伸、菅康佑、髙橋祐次、北嶋聡
    • Organizer
      第8回次世代を担う若手のためのレギュラトリーサイエンスフォーラム
    • Related Report
      2022 Annual Research Report
  • [Presentation] キシレンの吸入曝露によるマウス行動影響解析2022

    • Author(s)
      齊藤洋克、菅康佑、横田理、阿部裕、片岡洋平、六鹿元雄、種村健太郎、北嶋聡
    • Organizer
      第8回次世代を担う若手のためのレギュラトリーサイエンスフォーラム
    • Related Report
      2022 Annual Research Report
  • [Presentation] 多層カーボンナノチューブ(MWCNT)の2年間間欠気管内投与によるラット発がん性試験2022

    • Author(s)
      前野愛、北條幹、坂本義光、湯澤勝廣、長澤明道、生嶋清美、山本行男、平松恭子、矢野範男、大貫文、稲葉涼太、鈴木仁、横田理、髙橋祐次、小林憲弘、菅野純、広瀬 明彦、猪又明子、中江大
    • Organizer
      第49回日本毒性学会学術年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Preliminary report of the two-year, every 4-week-interval intermittent whole body inhalation study of the multi-walled carbon nanotube in male mice2022

    • Author(s)
      Taquahashi Y, Yokota S, Morita K, Tsuji M, Suga K, Kuwagata M, Hojyo M, Hirose A, Kanno J
    • Organizer
      the 61st Annual Meeting of the Society of Toxicology
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 毒性発現強度の時刻差を利用した毒性発現機構解明2021

    • Author(s)
      三浦伸彦、宮澤正幸、横田理、吉岡弘毅
    • Organizer
      メタルバイオサイエンス研究会2021
    • Related Report
      2021 Research-status Report
  • [Presentation] 精子の品質からみた新たなDOHaD研究の試み2021

    • Author(s)
      横田理
    • Organizer
      第35回 DOHaD学会寺子屋
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] In Vivo Genotoxicity Assessment Of Multi-Walled Carbon Nanotubes Using The Optimized Lung Micronucleus Assay2021

    • Author(s)
      Horibata K, Hojo M, Yokota S, Taquahashi Y, Kobayashi N, Takasawa H, Hamada S, Sugiyama K, Honma M
    • Organizer
      The Environmental Mutagenesis and Genomics Society 2021 Annual meeting
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] マウス精子形態形成へのビタミンA過剰の関与2021

    • Author(s)
      横田理、関根尚、北嶋聡、押尾茂
    • Organizer
      第48回日本毒性学会学術年会
    • Related Report
      2021 Research-status Report
  • [Presentation] 6-メルカプトプリンに対するマウスの感受性時刻差2021

    • Author(s)
      宮澤正幸、照井楓香、桂川真一、香川(田中)聡子、河村伊久雄、横田理、吉岡弘毅、三浦伸彦
    • Organizer
      第48回日本毒性学会学術年会
    • Related Report
      2021 Research-status Report
  • [Presentation] レチノイド過剰により生じるマウス精子形成のステージ出現頻度の変化2021

    • Author(s)
      横田理、若山友彦、押尾茂
    • Organizer
      第40回アンドロロジー学会
    • Related Report
      2021 Research-status Report
  • [Presentation] In vivo毒性試験のための二酸化チタン分散方法の検討2021

    • Author(s)
      横田理、河上強志、久保田領志、三浦伸彦、北嶋聡
    • Organizer
      メタルバイオサイエンス研究会2021
    • Related Report
      2021 Research-status Report
  • [Presentation] 薬毒物の感受性時刻差2021

    • Author(s)
      宮澤正幸、横田理、吉岡弘毅、三浦伸彦
    • Organizer
      メタルバイオサイエンス研究会2021
    • Related Report
      2021 Research-status Report
  • [Presentation] ディーゼル排気由来超微小粒子の胎児期曝露が児の海馬神経活動に影響を及ぼし、学習・記憶障害を引き起こす2021

    • Author(s)
      横田理、武田健
    • Organizer
      第61回日本先天異常学会学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] 多層カーボンナノチューブ(MWCNT)の2年間ラット気管内反復投与試験における投与器具の違いによる毒性の比較:1年経過時点での報告2021

    • Author(s)
      前野愛、北條幹、坂本義光、湯澤勝廣、長谷川悠子、長澤明道、生嶋清美、平松恭子、海鉾藤文、山本行男、安藤弘、田中和良、鈴木仁、猪又明子、守安貴子、高橋祐次、横田理、小林憲弘、広瀬明彦、中江大
    • Organizer
      第48回日本毒性学会学術年会
    • Related Report
      2021 Research-status Report
  • [Presentation] ナノマテリアルを間歇ばく露したマウス肺病変成り立ちの病理形態学的検討2021

    • Author(s)
      相磯成敏、大西誠、山野荘太郎、斎藤美佐江、近藤ひとみ、横田理、梅田ゆみ
    • Organizer
      第94回日本産業衛生学会
    • Related Report
      2021 Research-status Report
  • [Presentation] 男性不妊の原因究明に資する、新たな生殖毒性評価の試み2021

    • Author(s)
      横田理
    • Organizer
      第126回日本解剖学会総会・全国学術集会/第98回日本生理学会大会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Interim report of the 4-week-interval intermittent whole body inhalation study on multi-walled carbon nanotube in mice2021

    • Author(s)
      Taquahashi Y, Yokota S, Hojyo M, Morita K, Tsuji M, Suga K, Kuwagata M, Hirose A, Kanno J
    • Organizer
      the 60th Annual Meeting of the Society of Toxicology
    • Related Report
      2020 Research-status Report
  • [Presentation] Interim report of four-week interval intermittent inhalation study on multi-walled carbon nanotube in mice2021

    • Author(s)
      Taquahashi Y, Yokota S, Morita K, Kuwagata M, Hojyo M, Hirose A, Kanno J
    • Organizer
      9th Nano Conference
    • Related Report
      2020 Research-status Report
  • [Presentation] 慢性的なビタミンA過剰状態は、マウス精子形態異常の増悪化をひきおこす2021

    • Author(s)
      横田理、白幡卓也、押尾茂
    • Organizer
      第39回アンドロロジー学会
    • Related Report
      2020 Research-status Report
  • [Presentation] In vivo genotoxicity assessment of multi-wall carbon nanotubes using lung micronucleus assay2020

    • Author(s)
      Horibata K, Takasawa H, Taquahashi Y, Yokota S, Hamada S, Honma M
    • Organizer
      The Environmental Mutagenesis and Genomics Society 2020 Annual meeting
    • Related Report
      2020 Research-status Report
  • [Presentation] ビタミンA過剰摂取はマウスの精子形成を障害する2020

    • Author(s)
      横田理、関根尚、北嶋聡、押尾茂
    • Organizer
      日本食品衛生学会創立60周年記念第116回学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] ビタミンA過剰による恒常性破綻に基づく肝毒性・精巣毒性2020

    • Author(s)
      横田理、白幡卓也、関根尚、押尾茂
    • Organizer
      第47回日本毒性学会学術年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 概日リズム攪乱による雄性生殖機能障害2020

    • Author(s)
      三浦伸彦, 大谷勝己, 横田理, 吉岡弘毅
    • Organizer
      第47回日本毒性学会学術年会
    • Related Report
      2020 Research-status Report
  • [Presentation] ラットによる多層カーボンナノチューブ(MWCNT)の長期気管内反復投与試験: 1年経過時点における報告2020

    • Author(s)
      前野愛、北條幹、坂本義光、湯澤勝廣、長谷川悠子、久保喜一、長澤明道、安藤弘、田中和良、海鉾藤文、生嶋清美、山本行男、鈴木俊也、猪又明子、守安貴子、高橋祐次、横田理、小林憲弘、広瀬明彦、中江大
    • Organizer
      第47回日本毒性学会学術年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 雄性生殖系列を介した高分散ナノマテリアル胎児期曝露の二世代影響の可能性2020

    • Author(s)
      横田理、押尾茂
    • Organizer
      第29回精子形成・精巣毒性研究会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] A long-term whole-body inhalation study of multi-walled carbon nanotube in mice with an improved dispersion and inhalation system2020

    • Author(s)
      Taquahashi Y, Yokota S, Morita K, Tsuji M, Kuwagata M, Hirose A, Kanno J
    • Organizer
      The 59th Annual Meeting of the Society of Toxicology
    • Related Report
      2019 Research-status Report
  • [Presentation] マウス造精機能低下を引き起こすビタミンA過剰の反復摂取2019

    • Author(s)
      横田理、白幡卓也、遊佐淳子、櫻井裕子、伊東博司、押尾茂
    • Organizer
      フォーラム2019 衛生薬学・環境トキシコロジー
    • Related Report
      2019 Research-status Report
  • [Presentation] ビタミンA過剰の反復摂取はマウスの精子形成を障害するのか?2019

    • Author(s)
      横田理、白幡卓也、遊佐淳子、櫻井裕子、伊東博司、押尾茂
    • Organizer
      第8回DOHaD学会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] ビタミンA過剰モデルマウスを用いた精巣毒性・精子形成の影響評価2019

    • Author(s)
      横田理、白幡卓也、遊佐淳子、櫻井裕子、北嶋聡、伊東博司、押尾茂
    • Organizer
      第46回日本毒性学会学術年会
    • Related Report
      2019 Research-status Report
  • [Presentation] 慢性的なビタミンA過剰はマウスの精子形成を障害する2019

    • Author(s)
      横田理、白幡卓也、遊佐淳子、櫻井裕子、北嶋聡、伊東博司、押尾茂
    • Organizer
      第38回アンドロロジー学会
    • Related Report
      2019 Research-status Report
  • [Presentation] In vivo genotoxicity assessment of multi-wall carbon nanotubes using lung micronucleus assay2019

    • Author(s)
      Horibata K, Takasawa H, Taquahashi Y, Yokota S, Hamada S, Honma M
    • Organizer
      The Joint Meeting of the 6th Asian Congress on Environmental Mutagens (ACEM) and the 48th Annual Meeting of the Japanese Environmental Mutagen Society (JEMS)
    • Related Report
      2019 Research-status Report
  • [Presentation] Improved Aerosol Generation Method and Newly Designed Whole Body Rodent Inhalation Apparatus for the Testing of Nanomaterials in Human-Relevant Exposure Scenario2019

    • Author(s)
      Taquahashi Y, Yokota S, Morita K, Tsuji M, Ohnishi M, Hirose A, Kanno J
    • Organizer
      15th IUTOX International Congress of Toxicology (ICTXV)
    • Related Report
      2019 Research-status Report
  • [Patent(Industrial Property Rights)] 精子の検出方法2022

    • Inventor(s)
      国立大学法人東京大学
    • Industrial Property Rights Holder
      岡田 由紀、兼子 智、髙松 潔、横田 理
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2022-039134
    • Filing Date
      2022
    • Related Report
      2021 Research-status Report

URL: 

Published: 2019-04-18   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi