1.PNPLA3 I148M is unrelated to HCC occurrence but associates with poorer tumor differentiation in Korean MASLD: a prospective cohort of 562 patients
Jaejun LEE ; Dong Yeop LEE ; Jung Hoon CHA ; Hee Sun CHO ; Keungmo YANG ; Hyun YANG ; Mi Young BYUN ; Seok Keun CHO ; Seong Wook YANG ; Si Hyun BAE ; Pil Soo SUNG
Journal of Liver Cancer 2026;26(1):147-156
Background:
s/Aims: The patatin-like phospholipase domain-containing protein 3 (PNPLA3) I148M variant has been implicated in metabolic dysfunction-associated steatotic liver disease (MASLD), but its role in hepatocellular carcinoma (HCC) development is unclear. This study examines the association between the PNPLA3 I148M variant and HCC occurrence.
Methods:
A total of 562 MASLD patients, with and without HCC, were prospectively and consecutively enrolled at two universityaffiliated hospital between June 2024 and June 2025. Genomic DNA was extracted from buccal swabs or liver biopsy samples, and single nucleotide polymorphism genotyping was performed to determine the rs738409 genotype at codon 148 of PNPLA3. The histological grade of HCC was assessed using the Edmondson-Steiner (ES) grading system in patients who underwent core-needle liver biopsy.
Results:
Among 474 non-HCC patients, the GG genotype was found in 39.9%, GC in 37.1%, and CC in 23.0%. In 88 HCC patients, these frequencies were 45.5%, 36.4%, and 18.2%, respectively. No significant differences in GG genotype distribution were observed between HCC and non-HCC groups (P=0.509), nor in subgroups by sex, age, obesity status, cirrhosis status, fibrosis-4 index, or liver stiffness measurement. However, among HCC patients with histological grading, the GG genotype was significantly associated with higher ES grades (P=0.0076).
Conclusions
The PNPLA3 I148M GG genotype was not significantly associated with increased HCC occurrence in Korean MASLD patients within the present cohort. Although the GG genotype is known to play a role in development and progression of MASLD, further studies are warranted to clarify its contribution to tumor initiation and dedifferentiation.
2.The prognostic impact of psychiatric intervention on alcohol-associated liver disease: The UK Biobank cohort study
Keungmo YANG ; Sunghwan KIM ; Hyun YANG ; Sheng-Min WANG ; Bumseok JEONG ; Hyun Kook LIM ; Si Hyun BAE
Clinical and Molecular Hepatology 2024;30(4):929-942
Background/Aims:
Alcohol-associated liver disease (ALD) is a public health concern. ALD patients often have psychiatric comorbidities, but the effects of psychiatric interventions on ALD are not well-established. This study explores the prognostic impact of psychiatric intervention on ALD within UK Biobank cohort.
Methods:
This population-based study included 2,417 ALD patients from the UK Biobank cohort. Psychiatric intervention was defined by a consultation with psychiatrists during hospitalization or a history of medication related to alcohol use disorder and psychiatric comorbidities. Survival analysis was conducted, incorporating propensity score matching (PSM), to precisely assess the impact of psychiatric intervention.
Results:
Among 2,417 ALD patients, those with F10 (mental disorders due to alcohol) codes had poorer survival outcomes. Psychiatric intervention significantly improved the outcomes of both all-cause and liver-related mortality and reduced the incidence of liver cirrhosis. In subgroup or 2-year landmark analyses, psychiatric intervention consistently showed a survival benefit in ALD patients. In the multivariate analysis, psychiatric intervention was identified as a favorable prognostic factor (hazard ratio, 0.780; p=0.002 after PSM).
Conclusions
This study demonstrates the favorable effect of psychiatric intervention in ALD patients with psychiatric comorbidities. These findings emphasize the importance of integrated management for ALD patients to address both their medical and psychiatric aspects. Therefore, we suggest the potential benefits of early psychiatric interventions in improving survival outcomes in ALD.
3.Effect of Biliary Drainage on the Prognosis of Patients with Hepatocellular Carcinoma and Bile Duct Invasion
Keungmo YANG ; Hyun YANG ; Chang Wook KIM ; Hee Chul NAM ; Ji Hoon KIM ; Ahlim LEE ; U Im CHANG ; Jin Mo YANG ; Hae Lim LEE ; Jung Hyun KWON ; Soon Woo NAM ; Soon Kyu LEE ; Pil Soo SUNG ; Ji Won HAN ; Jeong Won JANG ; Si Hyun BAE ; Jong Young CHOI ; Seung Kew YOON ; Hee Yeon KIM
Gut and Liver 2024;18(5):877-887
Background/Aims:
Bile duct invasion (BDI) is rarely observed in patients with advanced hepatocellular carcinoma (HCC), leading to hyperbilirubinemia. However, the efficacy of pretreatment biliary drainage for HCC patients with BDI and obstructive jaundice is currently unclear. Thus, the aim of this study was to assess the effect of biliary drainage on the prognosis of these patients.
Methods:
We retrospectively enrolled a total of 200 HCC patients with BDI from multicenter cohorts. Patients without obstructive jaundice (n=99) and those who did not undergo HCC treatment (n=37) were excluded from further analysis. Finally, 64 patients with obstructive jaundice (43 subjected to drainage and 21 not subjected to drainage) were included. Propensity score matching was then conducted.
Results:
The biliary drainage group showed longer overall survival (median 10.13 months vs 4.43 months, p=0.004) and progression-free survival durations (median 7.00 months vs 1.97 months, p<0.001) than the non-drainage group. Multivariate analysis showed that biliary drainage was a significantly favorable prognostic factor for overall survival (hazard ratio, 0.42; p=0.006) and progression-free survival (hazard ratio, 0.30; p<0.001). Furthermore, in the evaluation of first response after HCC treatment, biliary drainage was beneficial (p=0.005). Remarkably, the durations of overall survival (p=0.032) and progression-free survival (p=0.004) were similar after propensity score matching.
Conclusions
Biliary drainage is an independent favorable prognostic factor for HCC patients with BDI and obstructive jaundice. Therefore, biliary drainage should be contemplated in the treatment of advanced HCC with BDI to improve survival outcomes.
4.Transarterial Chemolipiodolization for Hepatocellular Carcinoma with Central Bile Duct Invasion Causing Conjugated Hyperbilirubinemia: Safety and Prognostic Factors for Survival
Keungmo YANG ; Pil Soo SUNG ; Jung Suk OH ; Ho Jong CHUN ; Jeong Won JANG ; Si Hyun BAE ; Jong Young CHOI ; Seung Kew YOON
Journal of Liver Cancer 2018;18(2):121-129
BACKGROUND/AIMS: The treatments and outcomes of hepatocellular carcinoma (HCC) with bile duct invasion are not well known. We aimed to confirm the safety of transarterial chemolipiodolization (TACL) and identify prognostic factors for patients with bile duct invasion treated with TACL. METHODS: Fifty patients with central bile duct invasion treated with TACL between 2005 and 2017 were enrolled. Patients were divided into three groups: hyperbilirubinemia (total bilirubin ≥2.5 mg/dL) with pre-TACL biliary drainage, hyperbilirubinemia without biliary drainage, and without hyperbilirubinemia. Tumor response to TACL, survival outcomes, length of hospitalization, adverse events using Common Terminology Criteria for Adverse Events (CTCAE), and factors affecting overall survival were compared. RESULTS: TACL-induced changes of mean CTCAE grades for albumin, alanine aminotransferase, creatinine, prothrombin time, and platelet were not significantly different among patients with or without initial hyperbilirubinemia. Serum bilirubin level was not significantly changed after TACL in all the three groups. Overall survival was not significantly different among the three groups (P=0.097). On multivariate analysis, alpha-fetoprotein < 400 ng/dL (hazard ratio [HR]=0.477, P=0.048) and highest total bilirubin level of < 2.5 mg/dL within one month after TACL (HR=0.335, P=0.004) were significantly associated with longer survival. CONCLUSIONS: TACL was a safe treatment for HCC patients with central bile duct invasion, irrespective of the presence of initial hyperbilirubinemia.
Alanine Transaminase
;
alpha-Fetoproteins
;
Bile Ducts
;
Bile
;
Bilirubin
;
Blood Platelets
;
Carcinoma, Hepatocellular
;
Chemoembolization, Therapeutic
;
Creatinine
;
Drainage
;
Hospitalization
;
Humans
;
Hyperbilirubinemia
;
Multivariate Analysis
;
Prothrombin Time
5.Hepatogastric fistula as a rare complication of pyogenic liver abscess.
Kyu Won LEE ; Hee Yeon KIM ; Chang Wook KIM ; Young Ki KIM ; Ohbeom KWON ; Min Ah KIM ; Youngyun CHO ; Keungmo YANG
Clinical and Molecular Hepatology 2017;23(1):87-90
Hepatogastric fistula following a pyogenic liver abscess is extremely rare, and only a handful of cases have been reported. An 88-year-old female presented with generalized weakness, fever and chills. An abdominal computed tomography scan revealed a 5cm-sized hypodense lesion with internal septa in the left lateral section of the liver. Due to initial suspicion of early liver abscess, she was treated with empirical intravenous antibiotics. Initially, aspiration or drainage of the liver abscess was not performed due to immature lesion characteristics. An ultrasonography-guided percutaneous drainage of the liver abscess was performed 17 days after hospitalization due to a more mature lesion appearance on follow-up imaging. On tubography, contrast media leakage through the fistulous tract was visualized. Surgical management was performed, and she was discharged 2 weeks after surgery.
Aged, 80 and over
;
Anti-Bacterial Agents
;
Chills
;
Contrast Media
;
Drainage
;
Female
;
Fever
;
Fistula*
;
Follow-Up Studies
;
Gastric Fistula
;
Hand
;
Hospitalization
;
Humans
;
Liver
;
Liver Abscess
;
Liver Abscess, Pyogenic*

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