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Development of detection methods for early knee osteoarthritis through evaluation of muscle quality

Research Project

Project/Area Number 20K19376
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 59010:Rehabilitation science-related
Research InstitutionKyoto University

Principal Investigator

Taniguchi Masashi  京都大学, 医学研究科, 助教 (00827701)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2021: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords早期変形性膝関節症 / 骨格筋変性 / 筋質低下 / 筋内脂肪 / 内側広筋 / 早期膝OA / 筋内脂肪浸潤 / T2緩和時間 / 変形性膝関節症 / 骨格筋質 / 軟骨変性 / 身体活動量
Outline of Research at the Start

筋内脂肪増加を反映する骨格筋質の低下は、変形性膝関節症(OA)患者の筋変性の早期検出に有用である。一方、膝OA発症前段階の軟骨変性と筋質低下との関連性、及びそれに及ぼす身体活動量の影響は明かではない。よって、本研究では、早期OAの軟骨変性に及ぼす筋質や身体活動量による影響について検討する。膝OA診断のない高齢者を対象とし、MRI法を用いて筋質や軟骨変性の状態を定量化し、早期膝OAを判別する筋質評価の基準値を作成することを目指す。また、2年間の縦断変化を計測し、軟骨変性の進行と筋質低下との因果関係、及び身体活動量の影響を検討し、将来の軟骨変性に影響するリスク要因を特定する。

Outline of Final Research Achievements

Knee osteoarthritis (KOA) is one of major musculoskeletal disorders in the older individuals, significantly impairing daily function. Given the irreversible nature of joint deformities associated with KOA, early detection and preventative interventions are important. Recent studies have suggested that functional impairment in KOA is closely linked to qualitative decline in skeletal muscle, namely increased intramuscular fat (intraMAT), rather than muscle atrophy. Therefore, this study aimed to clarify the characteristics of muscle degeneration in early KOA and elucidate the association of muscle degeneration with knee dysfunction. The results revealed significant the intraMAT accumulation, particularly in the vastus medialis (VM) muscle, and this accumulation was associated with functional impairment and loss of cartilage quality in early KOA. These findings suggested that higher VM intraMAT is an imaging biomarker for detecting early KOA.

Academic Significance and Societal Importance of the Research Achievements

変形性膝関節症(膝OA)は、加齢変性疾患の一つといえ、高齢化とともに有病者数が増加している。膝OAに対する根治療法は確立されていないため、膝OAの早期発見、早期介入の重要性が指摘されている。本研究の成果は、膝OAの早期段階を筋質低下、特に筋内脂肪の増加によって検出できるだけでなく、その変化は機能障害・軟骨の質的低下と関連することを明らかにした。サルコペニアを代表とする骨格筋の変性は、従来、筋量に着目されてきたが、筋質を評価することが疾患の早期段階を捉えることが他でも指摘されつつあり、同様の知見を新たに早期膝OAで見出した点は学術的意義が高いものといえる。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (14 results)

All 2024 2023 2022

All Journal Article (10 results) (of which Peer Reviewed: 10 results,  Open Access: 4 results) Presentation (4 results) (of which Invited: 1 results)

  • [Journal Article] Examination of knee extensor and valgus moment arms of the patellar tendon in older individuals with and without knee osteoarthritis2024

    • Author(s)
      Taniguchi Masashi、Asayama Akihiro、Yagi Masahide、Fukumoto Yoshihiro、Hirono Tetsuya、Yamagata Momoko、Nakai Ryusuke、Kobayashi Masashi、Ichihashi Noriaki
    • Journal Title

      Clinical Biomechanics

      Volume: 113 Pages: 106212-106212

    • DOI

      10.1016/j.clinbiomech.2024.106212

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A higher intramuscular fat in vastus medialis is associated with functional disabilities and symptoms in early stage of knee osteoarthritis: a case?control study2023

    • Author(s)
      Taniguchi Masashi、Fukumoto Yoshihiro、Yagi Masahide、Hirono Tetsuya、Yamagata Momoko、Asayama Akihiro、Okada Shogo、Nakai Ryusuke、Kobayashi Masashi、Ichihashi Noriaki
    • Journal Title

      Arthritis Research & Therapy

      Volume: 25 Issue: 1 Pages: 61-61

    • DOI

      10.1186/s13075-023-03048-0

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ultrasonographic echo intensity in the medial femoral cartilage is enhanced prior to cartilage thinning in women with early mild knee osteoarthritis2023

    • Author(s)
      Okada Shogo、Taniguchi Masashi、Yagi Masahide、Motomura Yoshiki、Okada Sayaka、Fukumoto Yoshihiro、Kobayashi Masashi、Kanemitsu Kyoseki、Ichihashi Noriaki
    • Journal Title

      Knee Surgery, Sports Traumatology, Arthroscopy

      Volume: 31 Issue: 9 Pages: 3964-3970

    • DOI

      10.1007/s00167-023-07440-w

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Sitting vs. supine ultrasound measurements of the vastus medialis: correlations with MRI measurements and age considerations2023

    • Author(s)
      Taniguchi Masashi、Fukumoto Yoshihiro、Yagi Masahide、Hirono Tetsuya、Yamagata Momoko、Nakai Ryusuke、Yamada Yosuke、Kimura Misaka、Ichihashi Noriaki
    • Journal Title

      Journal of Physiological Anthropology

      Volume: 42 Issue: 1 Pages: 14-14

    • DOI

      10.1186/s40101-023-00331-6

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Enhanced echo intensity in vastus medialis is associated with worsening of functional disabilities and symptoms in patients with knee osteoarthritis: a 3?years longitudinal study2022

    • Author(s)
      Taniguchi Masashi、Fukumoto Yoshihiro、Yagi Masahide、Motomura Yoshiki、Okada Sayaka、Okada Shogo、Kobayashi Masashi、Ichihashi Noriaki
    • Journal Title

      Rheumatology International

      Volume: Online ahead of print Issue: 5 Pages: 953-960

    • DOI

      10.1007/s00296-022-05246-6

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Assessment of fore-, mid-, and rear-foot alignment and their association with knee symptoms and function in patients with knee osteoarthritis2022

    • Author(s)
      Nakazato Kaede、Taniguchi Masashi、Yagi Masahide、Motomura Yoshiki、Fukumoto Yoshihiro、Saeki Junya、Okada Shogo、Okada Sayaka、Kobayashi Masashi、Kanemitsu Kyoseki、Ichihashi Noriaki
    • Journal Title

      Clinical Rheumatology

      Volume: 42 Issue: 2 Pages: 511-517

    • DOI

      10.1007/s10067-022-06421-7

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Properties of the iliotibial band and their relationships with gait parameters among patients with knee osteoarthritis2022

    • Author(s)
      Yagi Masahide、Taniguchi Masashi、Tateuchi Hiroshige、Yamagata Momoko、Hirono Tetsuya、Asayama Akihiro、Umehara Jun、Nojiri Shusuke、Kobayashi Masashi、Ichihashi Noriaki
    • Journal Title

      Journal of Orthopaedic Research

      Volume: Online ahead of print Issue: 6 Pages: 1177-1185

    • DOI

      10.1002/jor.25466

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Influence of ultrasound focus depth on the association between echo intensity and intramuscular adipose tissue2022

    • Author(s)
      Fukumoto Yoshihiro、Taniguchi Masashi、Hirono Tetsuya、Yagi Masahide、Yamagata Momoko、Nakai Ryusuke、Asai Tsuyoshi、Yamada Yosuke、Kimura Misaka、Ichihashi Noriaki
    • Journal Title

      Muscle & Nerve

      Volume: 66 Issue: 5 Pages: 568-575

    • DOI

      10.1002/mus.27677

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Age- and sex-related differences of muscle cross-sectional area in iliocapsularis: a cross-sectional study2022

    • Author(s)
      Yagi Masahide、Taniguchi Masashi、Tateuchi Hiroshige、Hirono Tetsuya、Fukumoto Yoshihiro、Yamagata Momoko、Nakai Ryusuke、Yamada Yosuke、Kimura Misaka、Ichihashi Noriaki
    • Journal Title

      BMC Geriatrics

      Volume: 22 Issue: 1 Pages: 435-435

    • DOI

      10.1186/s12877-022-03127-y

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Relationship between individual forces of each quadriceps head during low-load knee extension and cartilage thickness and knee pain in women with knee osteoarthritis2022

    • Author(s)
      Yagi Masahide、Taniguchi Masashi、Tateuchi Hiroshige、Hirono Tetsuya、Yamagata Momoko、Umehara Jun、Nojiri Shusuke、Kobayashi Masashi、Ichihashi Noriaki
    • Journal Title

      Clinical Biomechanics

      Volume: 91 Pages: 105546-105546

    • DOI

      10.1016/j.clinbiomech.2021.105546

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Presentation] 早期変形性膝関節症患者における内側広筋の筋内脂肪増加と機能障害の関連2023

    • Author(s)
      谷口匡史、八木優英、浅山章大、岡田笙吾、市橋則明
    • Organizer
      第1回日本膝関節学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 筋機能障害に対する骨格筋評価法とトレーニング戦略2023

    • Author(s)
      谷口匡史
    • Organizer
      第11回日本運動器理学療法学会学術大会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 超音波測定肢位が内側広筋の筋厚・筋輝度とMRI筋体積・筋断面積および筋内脂肪割合との関係に及ぼす影響2022

    • Author(s)
      谷口匡史、福元喜啓、八木優英、廣野哲也、山縣桃子、中井隆介、山田陽介、木村みさか、市橋則明
    • Organizer
      第27回日本基礎理学療法学会学術大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 変形性膝関節症患者の機能障害および症状悪化は内側広筋の筋輝度上昇によって予測できる;3年間の縦断研究2022

    • Author(s)
      谷口匡史、福元喜啓、八木優英、本村芳樹、岡田紗也花、岡田笙吾、小林政史、市橋則明
    • Organizer
      第10回日本運動器理学療法学会学術大会
    • Related Report
      2022 Research-status Report

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Published: 2020-04-28   Modified: 2025-01-30  

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