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Sangoh Yoon

Kyung Hee University · 医学

研究室紹介

Professor Sangoh Yoon's research lab specializes in liver transplantation and hepatobiliary surgery, with a strong focus on improving outcomes in high-risk transplant recipients, particularly those with advanced liver disease (e.g., high MELD scores). The lab investigates innovative surgical techniques such as laparoscopic donor hepatectomy and bowel lengthening procedures like STEP for intestinal failure, emphasizing minimally invasive approaches and patient-centered outcomes. Additionally, the lab explores molecular mechanisms of inflammation and immune regulation, including the roles of activin and PD-L1 in modulating immune responses, aiming to reduce transplant rejection and organ toxicity.

liver transplantationminimally invasive surgeryimmune regulationintestinal failuretransplant outcomes

Research Overview

Papers
27
Total Citations
21
Papers (5y)
26
Primary Field
医学

Research Output Trend

Figures are computed from collected data and may differ slightly.

Publications per year (5y)
26total
2018
2021
2022
2023
2026
Citations per year (5y)
21total
20182021202220232026

Selected Papers

15
1
Article|9 citations·2023
Benefit of living donor liver transplantation in graft survival for extremely high model for end‐stage liver disease score ≥35
Sang Oh Yun, Jong Man Kim, Jinsoo Rhu, Gyu‐Seong Choi, Jae‐Won Joh
SJR Q1Journal of Hepato-Biliary-Pancreatic Sciences

BACKGROUND AND AIMS: Living liver donation with high model for end-stage liver disease (MELD) score was discouraged despite organ shortage. This study aimed to compare graft survival between living donor liver transplantation (LDLT) and deceased donor liver transplantation (DDLT) recipients with extremely high-MELD (score of ≥35). METHODS: Between 2008 and 2018, 359 patients who underwent liver transplantation with a MELD score ≥35 were enrolled. We compared graft survival between LDLT and DDLT

SurgeryMedicine
2
Article|9 citations·2023
Fibrosis-4 index, a predictor for prognosis of hepatocellular carcinoma patients after curative hepatectomy even in hepatitis B virus dominant populations
Sang Oh Yun, Jong Man Kim, Jinsoo Rhu, Gyu‐Seong Choi, Jae‐Won Joh
SJR Q2Annals of Surgical Treatment and ResearchOA

FIB-4 is identified as a statistically significant predictor of HCC prognosis after curative LR even in HBV dominant populations.

EpidemiologyMedicine
3
Article|1 citations·2018
Early Experience with Serial Transverse Enteroplasty in a Korean Intestinal Rehabilitation Team
Jiyoon Hong, Sang Oh Yun, Sanghoon Lee, Hyunjung Kim, Hyo Jung Park, Jeong‐Meen Seo
Surgical Metabolism and NutritionOA

Purpose: For patients with short bowel syndrome, surgery can play an important role in the management of intestinal failure (IF). Serial transverse enteroplasty (STEP) has become a popular choice of bowel lengthening among surgeons for its safety and effectiveness in improving enteral autonomy. In this study, we report 5 cases of STEP procedure on 4 patients. Materials and Methods: In the Intestinal Rehabilitation Team at Samsung Medical Center, all patients were managed by a multidisciplinary t

Nutrition and DieteticsNursing
4
Article|1 citations·2023
Activin suppresses the expression of inflammatory genes and signaling proteins in human leukemia monocytic THP-1 cells
Sang Oh Yun, Young Il Kim, Hyung Joon Ahn, Sun Young Min
SJR Q4Cellular and Molecular BiologyOA

Activin regulates inflammation, cell proliferation, immune response, wound repair, and endocrine function. In this study, we investigated the effect of activin on inflammatory genes in THP-1 cells and the involvement of NF-κB, AKT, and mitogen-activated protein kinase (MAPK) signaling. Cell viability was determined using a colorimetric assay with the MTS/PES solution. The mRNA levels were analyzed using reverse transcription-quantitative polymerase chain reaction. The expression of NF-κB, AKT, a

Molecular BiologyBiochemistry, Genetics and Molecular Biology
5
Article|1 citations·2022
333.3: Impact of Previous Abdominal Surgery on Laparoscopic Donor Hepatectomy for Living Donor Liver Transplantation
Jaehun Yang, Sunghyo An, Namkee Oh, Seung Wook Han, Sung Jun Jo, Sunghae Park, Sang Oh Yun, Manuel Lim, Ji Eun Kwon, Jinsoo Rhu, Gyu‐Seong Choi, Jong Man Kim
SJR Q1Transplantation

Introduction: Laparoscopic donor hepatectomy (LDH) has many advantages over open donor hepatectomy. However, previous abdominal surgical history can be considered to cause difficulties in laparoscopic surgery. Few studies have evaluated the impact of previous abdominal surgery (PAS) on LDH. Therefore, we studied the effect of PAS on LDH. Method: This study is a retrospective study conducted at a single center. We reviewed the data of 361 patients who underwent LDH at Samsung Medical Center from

SurgeryMedicine
6
Article|0 citations·2026
A novel strategy to prolong heart allograft survival in a mouse model using soluble programmed death ligand-1 combined with tacrolimus
Sang Oh Yun, Kyo Won Lee, Jae Berm Park, Jung‐Sun Kim, Chung Hee Sonn, O Kyung Kwon
SJR Q1Scientific ReportsOA

While immunosuppressants have improved organ transplantation outcomes, immune-mediated rejection remains a major challenge. Calcineurin inhibitors such as tacrolimus (FK-506) prevent acute rejection but cause nephrotoxicity, hypertension, and other adverse effects that contribute to transplant vasculopathy. This study evaluated the effects of soluble programmed death-ligand 1 (PD-L1) alone and combined with FK-506 on graft survival and immune modulation in a heterotopic heart transplantation mod

SurgeryMedicine
7
Article|0 citations·2022
Primary non-function in a deceased donor kidney transplant even with a Kidney Donor Risk Index less than 1.0: a case report
Sang Oh Yun, Min Jung Kim, Kyo Won Lee, Jae Berm Park
Korean Journal of TransplantationOA

Donations from deceased donors have been increasing since the introduction of expanded criteria for donor kidney selection. Several studies have shown that patients receiving deceased donor kidneys using these expanded criteria have improved survival compared to those remaining on the waiting list during hemodialysis. It is important, however, to consider that some of the kidneys classed as usable under the expanded criteria may in fact be unacceptable. To address this concern, preoperative biop

TransplantationMedicine
8
Article|0 citations·2022
Graft survival according to donor type, and risk assessment in liver transplantation of extremely high model for end-stage liver disease score ≥35
Sang Oh Yun, Jong Man Kim, Gyu‐Seong Choi, Jae‐Won Joh, Jinsoo Rhu
Korean Journal of TransplantationOA

Background: Although organ shortage was still the greatest problem in liver transplantation, living liver donation with high model for end-stage liver disease (MELD) score was discouraged until recently. The purpose of this study was to compare graft survival between living donor liver transplantation (LDLT) and deceased donor liver transplantation (DDLT) groups in extremely high MELD recipient defined as score 35 and to evaluate risk factors affecting graft survival. Methods: Between 2008 and 2

HepatologyMedicine
9
Article|0 citations·2021
Donor kidney quality assessment with ultrasound and clinical parameters in deceased donor kidney transplantation
Sang Oh Yun, Kyo Won Lee, Jae Berm Park, Sung Yoon Park
Korean Journal of TransplantationOA

We try to evaluate the effect of functional kidney volume measured by donor kidney ultrasound, alone or in combination with other donor factors and see if those parameters could be a model for deciding acceptable kidney grafts in deceased donor kidney transplantation (KT). Methods: From 2000 to 2020 who underwent deceased donor KT and those donors were recruited only at the Samsung Medical Center and total 273 patients were enrolled after adjusting exclusion criteria. Estimated glomerular filtra

Public Health, Environmental and Occupational HealthMedicine
10
Article|0 citations·2022
Non-invasive biomarkers, FIB-4 and APRI index, as predictors for prognosis of hepatocellular carcinoma patients after curative hepatectomy
Sang Oh Yun, Jong Man Kim, Jinsoo Rhu, Gyu‐Seong Choi, Jae‐Won Joh
SJR Q3Annals of Hepato-Biliary-Pancreatic SurgeryOA

Background: Although many staging systems and liver reserve models were not developed to predict HCC recurrence and overall survival, the few studies, which have investigated their prognostic values in predicting prognosis of HCC patients after curative hepatic resection. Among those non-invasive biomarkers, we try to evaluate the value of FIB-4 and APRI as prognostic predictors. Methods: Between 2006 and 2013, 973 patients were diagnosed with HCC and underwent hepatic resection at the Departmen

EpidemiologyMedicine
11
Article|0 citations·2022
332.6: Preoperative Ultrasound in Assessing Deceased Donor Kidney Quality Based on Clinical Parameters in Kidney Transplantation
Sang Oh Yun, Kyo Won Lee, Sung Yoon Park, Jae Berm Park
SJR Q1Transplantation

We evaluated the role of functional kidney volume using donor kidney ultrasound (US) alone or in combination with other donor factors and parameters appropriate for kidney grafts in deceased donor kidney transplantation (DDKT). A total of 273 patients who underwent deceased donor kidney transplantation from 2000 to 2020 at Samsung Medical Center were enrolled after adjusting for exclusion criteria. Estimated GFR was used to evaluate kidney function. An experienced genitourinary radiologist (*BLI

Pulmonary and Respiratory MedicineMedicine
12
Article|0 citations·2021
Early use of everolimus improved renal function after adult deceased donor liver transplantation
Jaehun Yang, Sunghae Park, Young Ju Oh, Sang Oh Yun, Manuel Lim, Ji Eun Kwon, Eun Sung Jeong, Jinsoo Rhu, Gyu‐Seong Choi, Jong Man Kim, Jae‐Won Joh
SJR Q3Annals of Hepato-Biliary-Pancreatic SurgeryOA

Jaehun YANG, Sunghae PARK, Young Ju OH, Sang Oh YUN, Manuel LIM, Ji Eun KWON, Eun Sung JEONG, Jinsoo RHU, Gyu-Seong CHOI, Jong Man KIM*, Jae-Won JOH. Ann Hepatobiliary Pancreat Surg 2021;25:S255. https://doi.org/10.14701/ahbps.EP-54

SurgeryMedicine
13
Article|0 citations·2021
Evaluation of FIB-4 and APRI in predicting the prognosis of heptocellular carcinoma patients after hepatic resection
Sang Oh Yun, Jong Man Kim
SJR Q3Annals of Hepato-Biliary-Pancreatic SurgeryOA

LV-PP

EpidemiologyMedicine
14
Article|0 citations·2022
Impact of preoperative ultrasonography for predicting the prognosis of deceased donor kidney transplantation
Sang Oh Yun, Kyo Won Lee, Jae Berm Park, Min Jung Kim, Sung Yoon Park, Boram Park
SJR Q1ULTRASONOGRAPHYOA

PURPOSE: This study evaluated the role of donor kidney ultrasonography (US) for predicting functional kidney volume and identifying ideal kidney grafts in deceased donor kidney transplantation. METHODS: In total, 272 patients who underwent deceased donor kidney transplantation from 2000 to 2020 at Samsung Medical Center were enrolled. Donor kidney information (i.e., right or left) was provided to the radiologist who performed US image re-analysis. To binarize each kidney's ultrasound parameters,

Pulmonary and Respiratory MedicineMedicine
15
Article|0 citations·2023
Benefit of living donor liver transplantation in graft survival for extremely high model for end-stage liver disease score ≥ 35
Sang Oh Yun, Jong Man Kim, Jinsoo Rhu, Gyu‐Seong Choi, Jae‐Won Joh
SJR Q3Annals of Hepato-Biliary-Pancreatic SurgeryOA

Background: Living liver donation with high model for end-stage liver disease (MELD) score was discouraged until recently despite organ shortage.This study aimed to compare graft survival between living donor liver transplantation (LDLT) and deceased donor liver transplantation (DDLT) recipients with extremely high MELD (score of ≥ 35).Methods: Between 2008 and 2018, 359 patients who underwent liver transplantation with a MELD score ≥ 35 at the Samsung Medical Center, Republic of Korea were enro

SurgeryMedicine

Research Areas

SurgeryEpidemiologyHepatologyPulmonary and Respiratory MedicineMolecular BiologyNutrition and Dietetics

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