Keiko Niimi

Tokyo, Japan

Last Updated: 09/26/2026

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Found 65 publications

Impact of Sarcopenia on Elderly Patients Undergoing Endoscopic Resection: Scoping Review.

Impact of Sarcopenia on Elderly Patients Undergoing Endoscopic Resection: Scoping Review.

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

Published: January 29, 2026

Management of Colorectal Sessile Serrated Lesions in Elderly Patients.

Management of Colorectal Sessile Serrated Lesions in Elderly Patients.

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

Published: January 16, 2026

Significance of White Opaque Substance in Superficial Nonampullary Duodenal Epithelial Tumors.

Significance of White Opaque Substance in Superficial Nonampullary Duodenal Epithelial Tumors.

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

Published: June 17, 2025

Short sleep duration is a significant risk factor of obesity: A multicenter observational study of healthy adults in Japan.

Short sleep duration is a significant risk factor of obesity: A multicenter observational study of healthy adults in Japan.

Journal: PloS one

Published: September 14, 2024

Marked intestinal trans-differentiation by autoimmune gastritis along with ectopic pancreatic and pulmonary trans-differentiation.

Marked intestinal trans-differentiation by autoimmune gastritis along with ectopic pancreatic and pulmonary trans-differentiation.

Journal: Journal of gastroenterology

Published: July 15, 2023

Performing the ABC Method Twice for Gastric Cancer Risk Stratification: A Retrospective Study Based on Data from a Large-Scale Screening Facility.

Performing the ABC Method Twice for Gastric Cancer Risk Stratification: A Retrospective Study Based on Data from a Large-Scale Screening Facility.

Journal: Diagnostics (Basel, Switzerland)

Published: March 02, 2023

Repeated steroid injection and polyglycolic acid shielding for prevention of refractory esophageal stricture.

Repeated steroid injection and polyglycolic acid shielding for prevention of refractory esophageal stricture.

Journal: Surgical endoscopy

Published: February 26, 2023

Reduced DEFA5 Expression and STAT3 Activation Underlie the Submucosal Invasion of Early Gastric Cancers.

Reduced DEFA5 Expression and STAT3 Activation Underlie the Submucosal Invasion of Early Gastric Cancers.

Journal: Digestion

Published: February 08, 2023

Results of the interim analysis of a prospective, multicenter, observational study of small subepithelial lesions in the stomach.

Results of the interim analysis of a prospective, multicenter, observational study of small subepithelial lesions in the stomach.

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

Published: January 29, 2023

Risk factors for incomplete resection with pharyngeal endoscopic submucosal dissection and long-term prognosis after resection.

Risk factors for incomplete resection with pharyngeal endoscopic submucosal dissection and long-term prognosis after resection.

Journal: Surgical endoscopy

Published: August 10, 2022

Analysis of Barrett's Esophagus and Its Risk Factors: A Cross-Sectional Study of 10,122 Subjects at a Japanese Health Examination Center.

Analysis of Barrett's Esophagus and Its Risk Factors: A Cross-Sectional Study of 10,122 Subjects at a Japanese Health Examination Center.

Journal: Digestion

Published: April 12, 2022

Transcriptome analysis reveals the essential role of NK2 homeobox 1/thyroid transcription factor 1 (NKX2-1/TTF-1) in gastric adenocarcinoma of fundic-gland type.

Transcriptome analysis reveals the essential role of NK2 homeobox 1/thyroid transcription factor 1 (NKX2-1/TTF-1) in gastric adenocarcinoma of fundic-gland type.

Journal: Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association

Published: March 05, 2022

Showing 1-12 of 65

Last Updated: 09/26/2026