Respiratory Investigation

Aims & Scope

Respiratory Investigation formerly known as Nihon Kokyuki Gakkaizasshi (The Journal of the Japanese Respiratory Society) is the official English - language journal of the Japanese Respiratory Society.

The journal published original manuscripts on clinical investigations of a variety of respiratory diseases and medicines, along with articles concerning basic physiology, pathology, and cellular/molecular biology relating to any pulmonary diseases.

Our journal is particularly interested in publishing articles that focus on the diversity of disease manifestations based on genetic and/or environmental differences between the East and West.

The journal will consider peer review and publish of pediatric pulmonology, if the manuscript closely related to respiratory disease in adults.

Article types accepted include Original Articles, Rapid Communications, Reviews and Guidelines, Editorials, and Letters to the editor.

A case report could be exceptionally accepted only when it contains significant scientific novelty and/or important clinical relevance.

The journal enthusiastically welcomes contributions not only from Japanese members of our Society but also from non-members hailing from neighboring countries in Asia and anywhere worldwide.

View Aims & Scope

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Metrics & Ranking

Impact Factor

Year	Value
2025	2
2024	2.40

SJR (SCImago Journal Rank)

Year	Value
2024	0.584

Quartile

Year	Value
2024	Q2

h-index

Year	Value
2024	43

Journal Rank

Year	Value
2024	9953

Journal Citation Indicator

Year	Value
2024	672

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Abstracting & Indexing

Journal is indexed in leading academic databases, ensuring global visibility and accessibility of our peer-reviewed research.

• Scopus
• Google Scholar
• Web of Science
• Medline
• Embase

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Subjects & Keywords

Journal’s research areas, covering key disciplines and specialized sub-topics in Medicine, designed to support cutting-edge academic discovery.

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Most Cited Articles

The Most Cited Articles section features the journal's most impactful research, based on citation counts. These articles have been referenced frequently by other researchers, indicating their significant contribution to their respective fields.

• Utility of KL-6/MUC1 in the clinical management of interstitial lung diseases

  Citation: 320

  Authors: Nobuhisa, Noboru, Akihito, Nobuoki

• Reference values for spirometry, including vital capacity, in Japanese adults calculated with the LMS method and compared with previous values

  Citation: 257

  Authors: Masaru, Hirosuke, Philip H., Hisamitsu, Koichiro, Minoru

• Consensus statement for the diagnosis and treatment of drug-induced lung injuries

  Citation: 230

  Authors: Keishi, Arata, Minoru, Hideto, Masahiko, Akihiko, Yasuo, Fumikazu, Yukihiko, Koichiro, Makoto, Hitoshi, Shu, Noboru, Masayuki, Yuh

• Inhibitory effects of glycopyrronium, formoterol, and budesonide on coronavirus HCoV-229E replication and cytokine production by primary cultures of human nasal and tracheal epithelial cells

  Citation: 206

  Authors: Mutsuo, Hidekazu, Xue, Mitsuru, Oshi, Kazuhiro, Yoshitaka, Haruki, Masakazu, Tetsuaki

• Clinical Practice Guidelines for Nursing- and Healthcare-associated Pneumonia (NHCAP) [Complete translation]

  Citation: 150

  Authors: Shigeru, Yoshifumi, Yuichiro, Masafumi, Tadashi, Shinji, Junichi, Kazunori, Akira

• Cellular senescence and autophagy in the pathogenesis of chronic obstructive pulmonary disease (COPD) and idiopathic pulmonary fibrosis (IPF)

  Citation: 127

  Authors: Kazuyoshi, Jun, Hiromichi, Shunsuke, Naoki, Saburo, Kenji, Katsutoshi

• Prognostic value of serial serum KL-6 measurements in patients with idiopathic pulmonary fibrosis

  Citation: 104

  Authors: Kentaro, Nobuhiko, Hiroyuki, Keishi, Hiroshi, Michihiro, Shohei, Minako, Yoshifusa, Kouji, Miwa, Makiko, Shinji, Miiru, Takashi, Sanae, Masaharu, Hiroshi, Masayuki

• Pre-existing interstitial lung abnormalities are risk factors for immune checkpoint inhibitor-induced interstitial lung disease in non-small cell lung cancer

  Citation: 102

  Authors: Yu, Takeshi, Kakuhiro, Shinjiro, Yasushi, Taku, Shintaro, Yasuhiro, Hiroshi, Kazunori, Yoshihiro, Hironobu, Morihito, Noboru

• Etiologic link between sarcoidosis and Propionibacterium acnes

  Citation: 98

  Authors: Yoshinobu

• Idiopathic pulmonary fibrosis: Molecular mechanisms and potential treatment approaches

  Citation: 94

  Authors: Daniel S., David, Heather A., Priya, Peter, Lora J., Amy D., Joshua, Allison B.

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