Adverse Events after Colorectal Polypectomy in Patients with Amyloidosis: Risk Assessment Using Propensity Score Matching
Hiroshi Sawaguchi , Tadanobu Nagaya , Tomoyuki Nakajima , Takuma Okamura , Mai Iwaya , Takeshi Uehara , Nagaaki Katoh , Yoshiki Sekijima , Yugo Iwaya
Digestion, 22 Jun. 2026, Refereed
Lead

Prognostic impact of vascular CXCR4 expression in colorectal carcinoma
Hiroshi Sawaguchi 1, Takeshi Uehara 2, Mai Iwaya 3, Shiho Asaka 4, Shinsuke Sugenoya 5, Takahiro Yoshizawa 5, Tomoyuki Nakajima 3, Shotaro Komamura 3, Masato Kamakura 1, Yugo Iwaya 1, Masato Kitazawa 5, Yuji Soejima 5, Hiroyoshi Ota 6, Tadanobu Nagaya 1
Experimental and Molecular Pathology, Jun. 2026, Refereed
Lead

The Correlation of PBK Expression with an Immune-Activated Tumor Microenvironment and Outcome in Colorectal Cancer
Hiroshi Sawaguchi 1, Takeshi Uehara 2, Mai Iwaya 2, Shiho Asaka 2 3, Tomoyuki Nakajima 2, Shotaro Komamura 2, Shunsuke Imamura 1, Yugo Iwaya 1, Shinsuke Sugenoya 4, Masato Kitazawa 4, Yuji Soejima 4, Hiroyoshi Ota 2 5, Tadanobu Nagaya 1
Cancers, 31 Jan. 2026, Refereed
Lead

High INHBB Expression Shapes an Immunosuppressive Tumor Microenvironment and Predicts Poor Prognosis in Colorectal Carcinoma
Hiroshi Sawaguchi 1, Takeshi Uehara 2, Mai Iwaya 3, Shiho Asaka 3 4, Tomoyuki Nakajima 3, Shotaro Komamura 3, Shunsuke Imamura 1, Yugo Iwaya 1, Shinsuke Sugenoya 5, Masato Kitazawa 5, Yuji Soejima 5, Hiroyoshi Ota 3 6, Tadanobu Nagaya 1
Digestive Diseases and Sciences, 01 Dec. 2025, Refereed
Lead

Underwater Endoscopic Mucosal Resection as a Salvage Strategy for a Non-Lifting Early Sigmoid Colon Carcinoma After Failed Conventional Endoscopic Mucosal Resection: A Case Report
Hiroshi Sawaguchi 1, Takuma Okamura 1, Yugo Iwaya 1, Hiroyoshi Ota 2 3, Tadanobu Nagaya 1
DEN Open, 22 Oct. 2025, Refereed
Lead

High KCNJ14 expression is associated with an immunosuppressive tumor microenvironment and advanced pathological features: An RNA in situ hybridization-based analysis of colorectal carcinoma
Hiroshi Sawaguchi 1, Takeshi Uehara 2, Mai Iwaya 3, Shiho Asaka 4, Tomoyuki Nakajima 3, Shotaro Komamura 3, Shunsuke Imamura 1, Yugo Iwaya 1, Shinsuke Sugenoya 5, Masato Kitazawa 5, Yuji Soejima 5, Hiroyoshi Ota 6, Tadanobu Nagaya 1
Experimental and Molecular Pathology, 21 Oct. 2025, Refereed
Lead

Submucosal tunneling biopsy for diagnosing malignant esophageal stricture
Hiroshi Sawaguchi
Gastrointestinal Endoscopy, Feb. 2025, Refereed
Lead

Leucine-rich repeat-containing G protein-coupled receptor 5 expression in lymph node metastases of colorectal cancer: Clinicopathological insights and prognostic implications
Hiroshi Sawaguchi
Pathology International, Jul. 2024, Refereed
Lead

多発する微小な褪色調陥凹性病変を呈した乳癌胃転移の 1 例
澤口洋視＊1・長屋匡信＊2・橋上遣太＊1・平山敦大＊1・岡村卓磨＊1 岩谷勇吾＊1・上原　剛＊3・梅村武司＊1
ENDOSCOPIC FORUM, 2024

PBK Expression Reflects an Immune-Activated Tumor Microenvironment and Predicts Favorable Prognosis in Colorectal Cancer
Hiroshi Sawaguchi, Takeshi Uehara, Mai Iwaya Tomoyuki Nakajima, Shotaro Komamura, Yugo Iwaya, and Tadanobu Nagaya
DDW2026, 03 May 2026

アミロイドーシス患者における大腸ポリペクトミー後の有害事象の検討：傾向スコアマッチングを用いたリスク評価
澤口洋視、長屋匡信、関田博昭、小林義明 、池内浩志 、土屋智章、馬場幸恵 、加古里子、平山敦大 、岡村卓磨、上原剛、岩谷勇吾
JDDW2025, 31 Oct. 2025

PROGNOSTIC IMPACT OF CXCR4/CXCL12 EXPRESSION IN COLORECTAL CANCER
Hiroshi Sawaguchi ∙ Takeshi Uehara ∙ Akira Shimizu ∙ Tadanobu Nagaya ∙ Yuji Soejima ∙ Yugo Iwaya
DDW2025, 03 May 2025

A case of squamous cell carcinoma diagnosed by B-POEM for esophageal stricture
Hiroshi Sawaguchi
消化器内視鏡学会甲信越地方会2024, 25 May 2024