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Seok Jae Ko

Kyung Hee University · 医学

研究室紹介

Professor Seok Jae Ko's research lab specializes in integrative gastroenterology, focusing on the clinical and preclinical evaluation of traditional Korean medicine (TKM) combined with modern therapeutics such as herbal formulations and probiotics. The lab investigates the mechanisms and efficacy of combination therapies—particularly herbal medicines like Gwakhyangjeonggisan and Rikkunshito—in treating functional gastrointestinal disorders, including irritable bowel syndrome (IBS) and functional dyspepsia (FD). A key focus is the standardization and objective quantification of traditional diagnostic methods, such as abdominal examination, through innovative devices like the modified algometer. The lab also explores synergistic effects of natural compounds, such as Laminaria japonica, and probiotics in inflammatory bowel disease models, aiming to develop evidence-based, patient-centered therapies.

functional gastrointestinal disorderstraditional Korean medicinecombination therapyprobioticsdiagnostic quantification

Research Overview

Papers
156
Total Citations
1,008
Papers (5y)
60
Primary Field
医学

Research Output Trend

Figures are computed from collected data and may differ slightly.

Publications per year (5y)
60total
2022
2023
2024
2025
2026
Citations per year (5y)
235total
20222023202420252026

Selected Papers

15
1
Article|65 citations·2013
Effect of Korean Herbal Medicine Combined with a Probiotic Mixture on Diarrhea-Dominant Irritable Bowel Syndrome: A Double-Blind, Randomized, Placebo-Controlled Trial
Seok‐Jae Ko, Gajin Han, Seul-Ki Kim, Jae‐Gu Seo, Won‐Seok Chung, Bongha Ryu, Jinsung Kim, Inkwon Yeo, Beom‐Joon Lee, Jin‐Moo Lee, Jae-Woo Park
Evidence-based Complementary and Alternative MedicineOA

Introduction. Although combination therapy with herbal medicine and probiotics is gaining popularity for controlling diarrhea-dominant irritable bowel syndrome (D-IBS) symptoms, few studies have investigated its clinical effects. Materials and Methods. Fifty-three patients with D-IBS were randomly allocated into 1 of the following 4 groups: herbal medicine (Gwakhyangjeonggisan; GJS) plus probiotics (Duolac7S; DUO), GJS plus placebo DUO, placebo GJS plus DUO, and placebo GJS plus placebo DUO. The

GastroenterologyMedicine
2
Article|37 citations·2016
Individualized Acupuncture for Symptom Relief in Functional Dyspepsia: A Randomized Controlled Trial
Seok‐Jae Ko, Braden Kuo, Seul-Ki Kim, Hyangsook Lee, Jinsung Kim, Gajin Han, Juyeon Kim, Song‐Yi Kim, Seung-won Jang, Ji-Young Son, Minji Kim, Hyejung Lee
The Journal of Alternative and Complementary Medicine

Individualized AT adequately relieves symptoms in patients with FD, and this effect may persist up to 8 weeks.

Complementary and alternative medicineMedicine
3
Review|36 citations·2020
Effects of the herbal medicine Rikkunshito, for functional dyspepsia: A systematic review and meta‐analysis
Seok‐Jae Ko, Jiseon Park, Jiseon Park, Minji Kim, Jinsung Kim, Jae‐Woo Park, Jae‐Woo Park
SJR Q1Journal of Gastroenterology and HepatologyOA

BACKGROUND AND AIM: Functional dyspepsia (FD) is characterized by chronic and unexplained indigestion at upper abdomen. Because of unsatisfactory effect of conventional treatments, demand is growing for complementary and alternative medicine. Rikkunshito (RKT) is a herbal medicine, which has been widely used for FD in Asia; however, the evidence is lacking. We carried out systematic review and meta-analysis to evaluate the effect and safety of RKT in the treatment of FD. METHODS: Electronic data

GastroenterologyMedicine
4
Article|23 citations·2014
Protective Effect ofLaminaria japonicawith Probiotics on Murine Colitis
Seok‐Jae Ko, Youngmin Bu, Jinhyun Bae, Yu-mi Bang, Jinsung Kim, Hyejung Lee, Beom‐Joon Lee, Yoo Hye Hyun, Jae-Woo Park
SJR Q2Mediators of InflammationOA

Inflammatory bowel disease (IBD) is a chronically relapsing inflammatory disorder of the gastrointestinal tract. Most IBD treatments are unsatisfactory; therefore, various dietary supplements have emerged as promising interventions. Laminaria japonica (LJ) is an edible seaweed used to regulate digestive symptoms. Probiotics have been reported to improve digestive problems and their simultaneous administration with seaweeds has been shown to produce synergistic therapeutic effects. Here, we inves

Aquatic ScienceAgricultural and Biological Sciences
5
Article|22 citations·2015
Development of the Quantitative Indicator of Abdominal Examination for Clinical Application: A Pilot Study
Seok‐Jae Ko, Hyun-ju Lee, Seul-Ki Kim, Minji Kim, Jinsung Kim, Beom‐Joon Lee, Jae-Woo Park
The Journal of Alternative and Complementary Medicine

OBJECTIVES: Abdominal examination (AE) is the evaluation of the status of illness by examining the abdominal region in traditional Korean medicine (TKM). Although AE is currently considered an important diagnostic method in TKM, owing to its clinical usage, no studies have been conducted to objectively assess its accuracy and develop standards. DESIGN: Twelve healthy subjects and 21 patients with functional dyspepsia have participated in this study. The patients were classified into epigastric d

GastroenterologyMedicine
6
Article|19 citations·2016
Reliability and Validity of Modified Algometer in Abdominal Examination
Seok‐Jae Ko, Honggeol Kim, Seul-Ki Kim, Kyungmo Park, Jeungchan Lee, Beom‐Joon Lee, Jayoung Oh, Kyungjin Lee, Jae-Woo Park
Evidence-based Complementary and Alternative MedicineOA

Objective. Abdominal examination (AE) is one of the essential diagnostic methods in traditional Korean medicine that has been widely used for deciding treatment, cause, and prognosis of the disease. AE majorly depends on the experience of practitioners; therefore, standardization and quantification of AE are desperately needed. However, few studies have tried to objectify AE and established its standard. We assessed the reliability and validity of newly developed diagnostic device for AE called

GastroenterologyMedicine
7
Article|17 citations·2011
Effect of herbal extract granules combined with probiotic mixture on irritable bowel syndrome with diarrhea: study protocol for a randomized controlled trial
Seok‐Jae Ko, Bongha Ryu, Jinsung Kim, Beom-Gi Hong, Inkwon Yeo, Beom‐Joon Lee, Jin‐Moo Lee, Jae-Woo Park
SJR Q2TrialsOA

BACKGROUND: Irritable bowel syndrome (IBS) is a chronic gastrointestinal disorder characterized by abdominal pain and change of bowel habits without organic disease. Many patients seek alternative IBS treatments because of the limitations of conventional treatments. Gwakhyangjeonggisan (GJS), a herbal formula, has long been used for alleviating diarrhea-predominant IBS (D-IBS) in traditional medicine. Duolac7S, which comprises 7 bacterial species as probiotics, has been frequently used for D-IBS

GastroenterologyMedicine
8
Article|17 citations·2014
Laminaria japonica Combined with Probiotics Improves Intestinal Microbiota: A Randomized Clinical Trial
Seok‐Jae Ko, Jinsung Kim, Gajin Han, Seulki Kim, Honggeol Kim, Inkwon Yeo, Bongha Ryu, Jae-Woo Park
SJR Q3Journal of Medicinal Food

UNLABELLED: Laminaria japonica--a widely used ingredient in seaweed kimchi--and lactic acid bacteria (LAB)--a main component of traditional fermented Korean food--may alter human intestinal microbiota composition and have a positive effect on various digestive problems. However, few clinical trials have investigated the potential benefits of L. japonica when combined with LAB for human intestinal microbiota. Therefore, this study was designed to evaluate the effects of L. japonica and representa

Aquatic ScienceAgricultural and Biological Sciences
9
Article|14 citations·2018
An Herbal Medicine, Yukgunja‐Tang is more Effective in a Type of Functional Dyspepsia Categorized by Facial Shape Diagnosis: A Placebo‐Controlled, Double‐Blind, Randomized Trial
Seok‐Jae Ko, Jae-Woo Park, Jae‐Hyung Lee, Jung Eun Lee, Na-Yeon Ha, Seong-uk Nam, J.D. Lee, Soo-Hyung Jeon, Jong-Won Kim, Changwan Kang, Inkwon Yeo, Jinsung Kim
Evidence-based Complementary and Alternative MedicineOA

Introduction . Functional dyspepsia (FD) is a functional gastrointestinal disorder characterized by persistent upper dyspeptic symptoms without organic lesions. There is no standard therapy for FD. Yukgunja‐tang (YGJT) is an herbal medicine used for treating upper gastrointestinal symptoms in Asia. Studies on the effect of YGJT on FD have been conducted. However, the results were inconsistent. In Hyungsang medicine, traditional Korean medicine, FD patients are classified into bladder body (BB) o

Complementary and alternative medicineMedicine
10
Article|8 citations·2016
Effect of acupuncture and its influence on cerebral activity in functional dyspepsia patients: study protocol for a randomized controlled trial
Seok‐Jae Ko, Kyungmo Park, Jieun Kim, Minji Kim, Joo‐Hee Kim, Jeungchan Lee, Abdalla Z. Mohamed, Inkwon Yeo, Jinsung Kim, Sun‐Mi Choi, Honggeol Kim, Jae-Woo Park
SJR Q2TrialsOA

ClinicalTrials.gov Identifier: NCT02358486 . Date of Registration: 21 January 2015.

Complementary and alternative medicineMedicine
11
Article|8 citations·2024
Revealing the mechanism and efficacy of natural products on treating the asthma: Current insights from traditional medicine to modern drug discovery
Dionysius Subali, Rudy Kurniawan, Reggie Surya, In‐Seon Lee, Sanghyun Chung, Seok‐Jae Ko, Myunghan Moon, Jinwon Choi, Moon Nyeo Park, Nurpudji Astuti Taslim, Hardinsyah Hardinsyah, Fahrul Nurkolis
SJR Q1HeliyonOA

Asthma remains a significant global health challenge, demanding innovative approaches to treatment. Traditional medicine has a rich history of using natural products to alleviate asthmatic symptoms. However, transitioning from these traditional remedies to modern drug discovery approaches has provided fresh insights into the mechanisms and effectiveness of these natural products. This study provides our comprehensive review, which examines the current state of knowledge in the treatment of asthm

PhysiologyMedicine
12
Article|8 citations·2017
Influence of the patient-practitioner interaction context on acupuncture outcomes in functional dyspepsia: study protocol for a multicenter randomized controlled trial
Seok‐Jae Ko, Jae-Woo Park, Jungtae Leem, Ted J. Kaptchuk, Vitaly Napadow, Braden Kuo, Jessica Gerber, Laurie Dimisko, Inkwon Yeo, Jun‐Hee Lee, Jinsung Kim
BMC Complementary and Alternative MedicineOA

CRIS Identifier: ( KCT0002229 ).

GastroenterologyMedicine
13
Article|8 citations·2021
Development of a patient-report pressure algometer for the quantification of abdominal examination
Seok‐Jae Ko, Keun Ho Kim, Sanghun Lee, Mi Hong Yim, Jae-Woo Park
SJR Q2Integrative Medicine ResearchOA

This study may provide evidence of standardization and quantification of AE through PA.

GastroenterologyMedicine
14
Review|7 citations·2018
Herbal medicine Yukgunja-tang for functional dyspepsia protocol for a systematic review of randomized controlled trials
Seok‐Jae Ko, Jae-Woo Park, Jae‐Hong Lee, Soo-ho Cho, Jaehyung Lee, Seong-uk Nam, Jinsung Kim
SJR Q3MedicineOA

BACKGROUND: Functional dyspepsia (FD) is a common functional gastrointestinal disorder characterized by recurrent dyspeptic symptoms. Yukgunja-tang (YGT) is a traditional herbal formula that has been used for treating FD. This systematic review protocol aims to provide a guideline for investigating the efficacy and safety of YGT in the treatment of FD. METHODS: The following databases will be searched from their inception until July 2018: Medline (via PubMed), EMBASE, the Cochrane Central Regist

GastroenterologyMedicine
15
Review|7 citations·2019
Herbal medicine Banha-sasim-tang for the treatment of functional dyspepsia protocol for a systematic review of randomized controlled trials
Seok‐Jae Ko, Soo-Ho Cho, Keum-Ji Kim, Jinsung Kim, Na-Yeon Ha, Jae-Woo Park
SJR Q3MedicineOA

BACKGROUND: Functional dyspepsia (FD) has a high prevalence rate. The dyspeptic symptoms are not easily cured despite the availability of various conventional Western medical treatments. Banha-sasim-tang (BST) is a traditional herbal medicine that has long been used for treating FD. METHODS: The following databases will be searched from inception to January 2019: Medline via PubMed, the Cochrane Central Register of Controlled Trials, EMBASE, Allied and Complementary Medicine Database, National D

GastroenterologyMedicine

Research Areas

GastroenterologyComplementary and alternative medicinePharmacologyPulmonary and Respiratory MedicinePhysiologyMolecular Biology

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