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Bora Geum

Korea University · Medicine

About the Lab

Professor Bora Geum's research lab focuses on gastrointestinal endotherapy and interventional techniques, with a strong emphasis on improving the safety and efficacy of endoscopic treatments for gastrointestinal diseases. The lab investigates novel ablation technologies such as irreversible electroporation (IRE) in the upper GI tract, evaluates the safety of bowel preparation agents in patients with renal impairment, and explores molecular mechanisms underlying intestinal inflammation, particularly involving sirtuin 7 (SIRT7). Their work bridges clinical gastroenterology with translational research, aiming to develop innovative, targeted therapies for inflammatory and malignant conditions of the digestive system.

endoscopic ablationirreversible electroporationrenal insufficiencybowel preparationintestinal inflammation

Research Overview

Papers
451
Total Citations
3,524
Papers (5y)
66
Primary Field
Medicine

Research Output Trend

Figures are computed from collected data and may differ slightly.

Publications per year (5y)
66total
2022
2023
2024
2025
2026
Citations per year (5y)
257total
20222023202420252026

Selected Papers

15
1
Article|65 citations·2010
Effect of Bowel Preparation with Polyethylene Glycol on Quality of Capsule Endoscopy
Sung Chul Park, Bora Keum, Yeon Seok Seo, Yong Sik Kim, Yoon Tae Jeen, Hoon Jai Chun, Soon Ho Um, Chang Duck Kim, Ho Sang Ryu
SJR Q2Digestive Diseases and Sciences
OncologyMedicine
2
Article|33 citations·2010
Usefulness of Warm Water and Oil Assistance in Colonoscopy by Trainees
Sung Chul Park, Bora Keum, Eun Sun Kim, Eun Suk Jung, Sehe Dong Lee, Sanghoon Park, Yeon Seok Seo, Yong Sik Kim, Yoon Tae Jeen, Hoon Jai Chun, Soon Ho Um, Chang Duck Kim
SJR Q2Digestive Diseases and Sciences
OncologyMedicine
3
Article|31 citations·2014
Risk Factors for Developing Hyponatremia During Terlipressin Treatment
Sun Young Yim, Yeon Seok Seo, Chang Ho Jung, Tae Hyung Kim, Eun Sun Kim, Bora Keum, Ji Hoon Kim, Hyonggin An, Hyung Joon Yim, Jong Eun Yeon, Yoon Tae Jeen, Hong Sik Lee
SJR Q2Journal of Clinical Gastroenterology

Terlipressin-induced hyponatremia occurred frequently, especially in young patients with good liver function and higher Na level. Caution is required when administering terlipressin to patients with low body mass index.

Pulmonary and Respiratory MedicineMedicine
4
letter|23 citations·2011
Capsule endoscopy and double balloon enteroscopy for obscure gastrointestinal bleeding: Which is better?
Bora Keum, Hoon Jai Chun
SJR Q1Journal of Gastroenterology and HepatologyOA

See article in J. Gastroenterol. Hepatol. 2011; 26: 796–801.

GastroenterologyMedicine
5
Article|16 citations·2016
Polyethylene glycol plus ascorbic acid for bowel preparation in chronic kidney disease
Jae Min Lee, Bora Keum, In Kyung Yoo, Seung Han Kim, Hyuk Soon Choi, Eun Sun Kim, Yeon Seok Seo, Yoon Tae Jeen, Hoon Jai Chun, Hong Sik Lee, Soon Ho Um, Chang Duck Kim
SJR Q3MedicineOA

The safety of polyethylene glycol plus ascorbic acid has not been fully investigated in patients with renal insufficiency. High-dose ascorbic acid could induce hyperoxaluria, thereby causing tubule-interstitial nephritis and renal failure. This study aims to evaluate the safety and efficacy of polyethylene glycol plus ascorbic acid in patients with chronic kidney disease.We retrospectively reviewed prospectively collected data on colonoscopy in patients with impaired renal function. Patients wer

OncologyMedicine
6
letter|15 citations·2010
Proctocolitis Caused by Coffee Enemas
Bora Keum, Yoon Tae Jeen, Sung Chul Park, Yeon Seok Seo, Yong Sik Kim, Hoon Jai Chun, Soon Ho Um, Chang Duck Kim, Ho Sang Ryu
SJR Q1The American Journal of Gastroenterology

Keum, Bora MD, PhD1; Jeen, Yoon Tae MD, PhD1; Park, Sung Chul MD1; Seo, Yeon Seok MD, PhD1; Kim, Yong Sik MD, PhD1; Chun, Hoon Jai MD, PhD1; Um, Soon Ho MD, PhD1; Kim, Chang Duck MD, PhD1; Ryu, Ho Sang MD, PhD1 Author Information

Pulmonary and Respiratory MedicineMedicine
7
Article|14 citations·2022
A simple and efficient cryopreservation method for mouse small intestinal and colon organoids for regenerative medicine
Boeun Lee, Beom Jae Lee, Kyung Jin Lee, Manhee Lee, Yun Jeong Lim, Jung Kyu Choi, Bora Keum
SJR Q2Biochemical and Biophysical Research Communications
Biomedical EngineeringEngineering
8
Article|14 citations·2021
Feasibility and effectiveness of endoscopic irreversible electroporation for the upper gastrointestinal tract: an experimental animal study
Han Jo Jeon, Hyuk Soon Choi, Bora Keum, Eun Joo Bang, Kang Won Lee, Sang Hyun Kim, Sun Young Yim, Jae Min Lee, Eun Sun Kim, Yeon Seok Seo, Yoon Tae Jeen, Hong Sik Lee
SJR Q1Scientific ReportsOA

Irreversible electroporation (IRE) is a local non-thermal ablative technique currently used to treat solid tumors. Here, we investigated the clinical potency and safety of IRE with an endoscope in the upper gastrointestinal tract. Pigs were electroporated with recently designed endoscopic IRE catheters in the esophagus, stomach, and duodenum. Two successive strategies were introduced to optimize the electrical energy for the digestive tract. First, each organ was electroporated and the energy up

BiotechnologyBiochemistry, Genetics and Molecular Biology
9
Article|13 citations·2022
Sirtuin 7 Inhibitor Attenuates Colonic Mucosal Immune Activation in Mice—Potential Therapeutic Target in Inflammatory Bowel Disease
Sang Hyun Kim, Junhyoung Byun, Semyung Jung, Byoungjae Kim, Kangwon Lee, Hanjo Jeon, Jaemin Lee, Hyuk Soon Choi, Eun Sun Kim, Yoontae Jeen, Hong Sik Lee, Hoon-Jai Chun
SJR Q1BiomedicinesOA

Accumulating evidence has shown that sirtuin 7 (SIRT7), a mediator of various cellular activities, plays an important role in the pathogenesis of various immune-mediated inflammatory disorders. However, information remains limited regarding the role of SIRT7 in intestinal inflammation. We used a murine colitis model to investigate the role of SIRT7 in intestinal immunity and whether SIRT7 inhibitors could attenuate the intestinal inflammatory response. Mice were divided into three groups: contro

Geriatrics and GerontologyMedicine
10
Article|13 citations·2005
[Comparison of Helicobacter pylori eradication rate according to different PPI-based triple therapy--omeprazole, rabeprazole, esomeprazole and lansoprazole--].
Bora Keum, Sang Woo Lee, Se Yune Kim, Jeong‐Min Kim, Rok Son Choung, Hyung Joon Yim, Yoon Tae Jeen, Hong Sik Lee, Hoon Jai Chun, Soon Ho Um, Jai Hyun Choi, Chang Duck Kim
PubMed

BACKGROUND/AIMS: Helicobacter pylori (H. pylori) is an important cause of various gastrointestinal diseases. H. pylori eradication is essential for the cure and prevention of associated diseases. Nowdays, proton pump inhibitor (PPI)-based triple therapy is the standard eradication regimen. The aims of this study were to compare the H. pylori eradication rate of different PPI-based triple therapies and to find out the factors influencing the eradication rate. METHODS: From May 2002 through Februa

SurgeryMedicine
11
Article|12 citations·2011
Gastric intramural hematoma caused by argon plasma coagulation: treated with endoscopic incision and drainage (with videos)
Bora Keum, Hoon Jai Chun, Yeon Seok Seo, Yong Sik Kim, Yoon Tae Jeen, Hong Sik Lee, Soon Ho Um, Chang Duck Kim, Ho Sang Ryu
SJR Q1Gastrointestinal Endoscopy
SurgeryMedicine
12
Article|10 citations·2019
Stomach Volume Assessment Using Three-dimensional Computed Tomography Gastrography for Bariatric Treatment
Seung Han Kim, Bora Keum, Hyuk Soon Choi, Eun Sun Kim, Yeon Seok Seo, Yoon Tae Jeen, Hong Sik Lee, Hoon Jai Chun, Soon Ho Um, Chang Duck Kim
SJR Q1Obesity Surgery
SurgeryMedicine
13
Article|9 citations·2018
Impact of diet restriction on bowel preparation for colonoscopy
Seung‐Joo Nam, Young Jin Kim, Bora Keum, Jae Min Lee, Seung Han Kim, Hyuk Soon Choi, Eun Sun Kim, Yeon Seok Seo, Yoon Tae Jeen, Hong Sik Lee, Hoon Jai Chun, Soon Ho Um
SJR Q3MedicineOA

Diet restriction is one of the difficult parts of bowel preparation for colonoscopy, and many patients do not follow instructions properly. Few studies have evaluated the impact of dietary restriction in real clinical setting. The aim of this study was to study the effect of diet control on bowel preparation with detailed investigation of unacceptable food list in order to reveal what kind of foods are most problematic in clinical practice.Prospective observational study was carried out at a uni

OncologyMedicine
14
Article|9 citations·2006
Dysphagia lusoria assessed by 3-dimensional CT
Bora Keum, Yong Sik Kim, Yoon‐Tae Jeen, Hoon Jai Chun, Soon Ho Um, Chang Duck Kim, Ho Sang Ryu, Jin Hai Hyun
SJR Q1Gastrointestinal Endoscopy
Speech and HearingHealth Professions
15
Article|8 citations·2014
Clinical Significance of Hepatitis B Virus Precore and Core Promoter Variants in Korean Patients With Chronic Hepatitis B
Sun Young Yim, Soon Ho Um, Jin Young Jung, Tae Hyung Kim, Jin-Dong Kim, Bora Keum, Yeon Seok Seo, Hyung Joon Yim, Yoon Tae Jeen, Hong Sik Lee, Hoon Jai Chun, Chang Duck Kim
SJR Q2Journal of Clinical Gastroenterology

In HBeAg-positive CHB patients infected with genotype C HBV, preC variant was associated with enhanced host immune response with lower HBV DNA levels, whereas CP variants were associated with severe liver damage and liver fibrosis progression.

EpidemiologyMedicine

Research Areas

SurgeryPulmonary and Respiratory MedicineOncologyGastroenterologyEpidemiologyBiotechnology

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