Yoshihiro Yokoyama

Sapporo, Japan

Last Updated: 09/26/2026

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Found 41 publications

Infliximab-Associated IgA Vasculitis Masquerading as Crohn's Disease Relapse: Leukocytoclastic Vasculitis Confirmed on Duodenal Biopsy - A Case Report.

Infliximab-Associated IgA Vasculitis Masquerading as Crohn's Disease Relapse: Leukocytoclastic Vasculitis Confirmed on Duodenal Biopsy - A Case Report.

Journal: Inflammatory intestinal diseases

Published: April 02, 2026

Long-term drug persistence and clinical outcomes of ustekinumab in Crohn's disease: a multicenter real-world study from the Hokkaido phoenix cohort.

Long-term drug persistence and clinical outcomes of ustekinumab in Crohn's disease: a multicenter real-world study from the Hokkaido phoenix cohort.

Journal: Crohn's & colitis 360

Published: March 20, 2026

Short- and Long-Term Effectiveness and Safety of Vedolizumab in Crohn's Disease: A Multicenter Retrospective Study from the Hokkaido Phoenix Cohort.

Short- and Long-Term Effectiveness and Safety of Vedolizumab in Crohn's Disease: A Multicenter Retrospective Study from the Hokkaido Phoenix Cohort.

Journal: Inflammatory intestinal diseases

Published: February 18, 2026

Loss of Nonhematopoietic Osteopontin Weakens the Intestinal Barrier and Alters the Microbiome and Metabolome in Mice.

Loss of Nonhematopoietic Osteopontin Weakens the Intestinal Barrier and Alters the Microbiome and Metabolome in Mice.

Journal: Gastro hep advances

Published: October 09, 2025

A Rare Case of Ileoileal Fistula Concomitant with Adenocarcinoma in a Patient with Crohn's Disease.

A Rare Case of Ileoileal Fistula Concomitant with Adenocarcinoma in a Patient with Crohn's Disease.

Journal: Inflammatory intestinal diseases

Published: October 06, 2025

Extraintestinal Manifestations and Cytomegalovirus Reactivation Are Predictors of Difficult-To-Treat in Ulcerative Colitis.

Extraintestinal Manifestations and Cytomegalovirus Reactivation Are Predictors of Difficult-To-Treat in Ulcerative Colitis.

Journal: Inflammatory intestinal diseases

Published: August 14, 2025

Long-Term Outcomes and Prognostic Factors for Vedolizumab-Treated Japanese Patients with Ulcerative Colitis.

Long-Term Outcomes and Prognostic Factors for Vedolizumab-Treated Japanese Patients with Ulcerative Colitis.

Journal: Inflammatory intestinal diseases

Published: July 26, 2025

Unraveling the complexity of ulcerative colitis: insights into cytokine dysregulation and targeted therapies.

Unraveling the complexity of ulcerative colitis: insights into cytokine dysregulation and targeted therapies.

Journal: EXCLI journal

Published: March 23, 2025

Rituximab-associated colitis mimicking ulcerative colitis.

Rituximab-associated colitis mimicking ulcerative colitis.

Journal: Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society

Published: April 12, 2024

The improvement of a refractory enterocutaneous fistula with colchicine in a patient with Crohn's disease who had an MEFV gene mutation.

The improvement of a refractory enterocutaneous fistula with colchicine in a patient with Crohn's disease who had an MEFV gene mutation.

Journal: Clinical journal of gastroenterology

Published: April 04, 2024

Cytokine Profile in Predicting the Effectiveness of Advanced Therapy for Ulcerative Colitis: A Narrative Review.

Cytokine Profile in Predicting the Effectiveness of Advanced Therapy for Ulcerative Colitis: A Narrative Review.

Journal: Biomedicines

Published: March 31, 2024

Effectiveness and Persistency of Ustekinumab Treatment for Ulcerative Colitis: A Phoenix retrospective Cohort Study.

Effectiveness and Persistency of Ustekinumab Treatment for Ulcerative Colitis: A Phoenix retrospective Cohort Study.

Journal: Crohn's & colitis 360

Published: January 31, 2024

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Last Updated: 09/26/2026