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4.
Artigo em Inglês | MEDLINE | ID: mdl-39238267

RESUMO

BACKGROUND/AIMS: With polarizing income disparities, this study investigated the prevalence and trends of liver disease in a U.S. population-based sample based on income-to-poverty ratio (IPR). METHODS: This cross-sectional study analysed survey data from the 1999-2018 National Health and Nutrition Examination Survey with highest (HIG), middle-income (MIG), and lowest income (LIG) groups defined as IPR ≤ 1, 1 < IPR <5, and IPR ≥ 5, respectively. RESULTS: We analysed 59,204 adult participants with 48.2% male, 39.7% aged 18-39, 36.2% 40-59, and 24.1% ≥60 years. The weighted prevalence of hepatitis C (HCV), B (HBV) infection, non-alcoholic fatty liver disease (NAFLD), alcohol-associated liver disease (ALD), and advanced fibrosis in LIG were 3.9% (n = 276), 7.4% (n = 527), 33.2% (n = 714), 5.2% (n = 401), and 9.0% (n = 694), respectively, compared to lower rates for HIG: 1.0% (n = 82), 3.2% (n = 263), 29.6% (n = 798), 3.9% (n = 354), and 5.0% (n = 638). After adjusting for age, sex, race and ethnicity, education, and birthplace, HIG had the lowest odds of having any liver disease [adjusted odds ratio (aOR) 0.67, p < 0.0001], with similar findings for specific conditions including HCV, HBV, and advanced fibrosis (aOR 0.24, 0.52, and 0.64, all p < 0.0001, respectively). While viraemic HCV prevalence decreased over time for HIG, there were no changes for MIG nor LIG. Similarly, NAFLD prevalence was stable for HIG but increased for MIG and LIG. CONCLUSION: LIG and MIG in the United States have higher liver disease burdens than HIG, with increasing NAFLD prevalence and lack of decline in current HCV infection prevalence over time as opposed to declining or stable trend in HIG.

5.
Gastroenterology ; 2024 Sep 16.
Artigo em Inglês | MEDLINE | ID: mdl-39293548

RESUMO

BACKGROUND & AIMS: Better surveillance tests for hepatocellular carcinoma (HCC) are needed. The GALAD score [Gender, Age, AFP-L3, AFP, and Des-carboxy-prothrombin] has been shown to have excellent sensitivity and specificity for HCC in phase two studies. We performed a phase three biomarker validation study to compare GALAD with AFP in detecting HCC. METHODS: This is a prospective study of patients with cirrhosis enrolled at seven centers. Surveillance for HCC was performed every 6 months at each site, and HCC diagnosis was confirmed per AASLD guidelines. Blood for biomarker research was obtained at each follow-up visit and stored in a biorepository. Measurements of AFP, AFP-L3, and DCP (des-gamma carboxyprothrombin) were performed in a FujiFilm laboratory by staff blinded to clinical data. The performance of GALAD in detecting HCC was retrospectively evaluated within 12 months prior to the clinical diagnosis. All analyses were conducted by an unblinded statistician in the EDRN data management and coordinating center. RESULTS: A total of 1,558 patients with cirrhosis were enrolled and followed for a median of 2.2 years. A total of 109 patients developed HCC (76 very early or early stage) with an annual incident rate of 2.4%. The AUC for AFP and GALAD within 12 months prior to HCC 0.66 and 0.78 (p<0.001), respectively. Using cutoff for GALAD of -1.36, the specificity was 82% and sensitivity at 12 months prior to HCC diagnosis was 62%. For comparison, performance of AFP at 82% specificity showed 41% sensitivity at 12 months prior to HCC diagnosis (p=0.001). CONCLUSION: GALAD score, compared to AFP, improves the detection of HCC within 12 months prior to the actual diagnosis.

6.
EClinicalMedicine ; 74: 102727, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39109190

RESUMO

Background: Pregnant women with hepatitis C virus (HCV) infection represent a special population in which treatment access remains limited despite its increasing prevalence. A reliable estimate of the burden and clinical outcomes of pregnant women with HCV infection is crucial for HCV elimination. We aimed to determine the prevalence, maternal-to-child transmission (MTCT), maternal and fetal complication rates, and direct acting antivirals (DAA) treatment outcomes of chronic HCV infection in pregnant women. Methods: We searched PubMed, EMBASE, Scopus, Web of Science from inception until March 1, 2024, for studies reporting on the prevalence, MTCT, complications of HCV infection, and treatment outcomes of DAA in pregnant women. Study quality was assessed using the Newcastle-Ottawa Scale. We performed subgroup analysis based on 9 variables to explore the source of heterogeneity in HCV prevalence. The PROSPERO registration number is CRD42024500023. Findings: From a total of 311,905,738 pregnant women from 333 studies, the pooled global seroprevalence of HCV in pregnant women was 2.6% (95% CI: 2.0-3.2, I 2 = 100%) which increased in patients with intravenous drug use and HIV. Majority of the HCV cases in pregnant women (75%) are diagnosed through universal screening. The pooled MTCT rate was 9.0% (95% CI: 6.6-11.7, I 2 = 79%), which was higher with HIV co-infection (OR: 3.1, 95% CI: 2.1-4.6, I 2 = 10%), but was not influenced by the mode of delivery or breastfeeding. Pregnant women with HCV infection had more maternal complications, including intrahepatic cholestasis, preterm delivery, and antepartum hemorrhage. Neonates of mothers with HCV had higher odds of being small for gestational age. The pooled rate of sustained virologic response (SVR12) among the 74 women treated with DAA during pregnancy was 98.4%, with no serious adverse events reported. Interpretation: HCV prevalence in pregnant women varies by geographic region and patient population, while MTCT occurs in almost one in ten viremic mothers. The incidence of both maternal and neonatal complications is significantly higher in patients with HCV infection. Limited data suggest that DAA are safe in pregnant women with HCV infection. Funding: None.

8.
Gut ; 2024 Aug 08.
Artigo em Inglês | MEDLINE | ID: mdl-39122360

RESUMO

OBJECTIVE: Type 2 diabetes mellitus and metabolic dysfunction-associated steatotic liver disease (diabetic MASLD) frequently coexist and worsen liver and non-liver outcomes, but effective pharmacological therapies are limited. We aimed to evaluate the long-term effect of sodium-glucose cotransporter-2 inhibitor (SGLT-2i) on liver and non-liver outcomes among patients with diabetic MASLD. DESIGN: This population-based cohort study retrieved patients with diabetic MASLD from Merative Marketscan Research Databases (April 2013 and December 2021). The active comparator was other glucose-lowering drugs (oGLDs). Primary outcomes were liver complications including hepatocellular carcinoma (HCC) and liver cirrhosis, as well as non-liver complications including cardiovascular disease (CVD), chronic kidney disease (CKD) and non-liver cancer. Propensity score matching was applied and Cox regression models were conducted. RESULTS: Compared with oGLD, SGLT-2i users had significantly lower risk of HCC (HR 0.76, 95% CI 0.62 to 0.93), liver cirrhosis (HR 0.80, 95% CI 0.76 to 0.84), CVD (HR 0.82, 95% CI 0.79 to 0.85) and CKD (HR 0.66, 95% CI 0.62 to 0.70), non-liver cancer (HR 0.81, 95% CI 0.76 to 0.86). Compared with patients without metformin and SGLT-2i, a stepwise decreasing risk was observed in users of either metformin or SGLT-2i (HRs 0.76-0.97) and in users of both medications (HRs 0.58-0.79). The lower risk also was shown in liver decompensation, compensated cirrhosis, major CVD, end-stage renal disease and specific common cancers (HRs 0.61-0.84). CONCLUSION: In a nationwide cohort, SGLT-2i users were associated with a substantially lower risk of liver and non-liver complications than oGLD users among patients with diabetic MASLD. The risk was further reduced with concomitant metformin use.

9.
Ann Surg Oncol ; 2024 Aug 22.
Artigo em Inglês | MEDLINE | ID: mdl-39172301

RESUMO

BACKGROUND: Liver transplantation (LT) is the treatment of choice for end-stage liver disease and certain malignancies such as hepatocellular carcinoma (HCC). Data on the surgical management of de novo or recurrent tumors that develop in the transplanted allograft are limited. This study aimed to investigate the perioperative and long-term outcomes for patients undergoing hepatic resection for de novo or recurrent tumors after liver transplantation. METHODS: The study enrolled adult and pediatric patients from 12 centers across North America who underwent hepatic resection for the treatment of a solid tumor after LT. Perioperative outcomes were assessed as well as recurrence free survival (RFS) and overall survival (OS) for those undergoing resection for HCC. RESULTS: Between 2003 and 2023, 54 patients underwent hepatic resection of solid tumors after LT. For 50 patients (92.6 %), resection of malignant lesions was performed. The most common lesion was HCC (n = 35, 64.8 %), followed by cholangiocarcinoma (n = 6, 11.1 %) and colorectal liver metastases (n = 6, 11.1 %). The majority of the 35 patients underwent resection of HCC did not receive any preoperative therapy (82.9 %) or adjuvant therapy (71.4 %), with resection their only treatment method for HCC. During a median follow-up period of 50.7 months, the median RFS was 21.5 months, and the median OS was 49.6 months. CONCLUSION: Hepatic resection following OLT is safe and associated with morbidity and mortality rates that are comparable to those reported for patients undergoing resection in native livers. Hepatic resection as the primary and often only treatment modality for HCC following LT is associated with acceptable RFS and OS and should be considered in well selected patients.

10.
Sci Rep ; 14(1): 19544, 2024 08 22.
Artigo em Inglês | MEDLINE | ID: mdl-39174722

RESUMO

Primary liver cancer is the third leading cause of cancer-related mortality. The increasing prevalence of metabolic syndrome and alcohol consumption, along with the existing burden of viral hepatitis, could significantly heighten the impact of primary liver cancer. However, the specific effects of these factors in the Asia-Pacific region, which comprises more than half of the global population, remain largely unexplored. This study aims to analyze the epidemiology of primary liver cancer in the Asia-Pacific region. We evaluated regional and national data from the Global Burden of Disease study spanning 2010 to 2019 to assess the age-standardized incidence, mortality, and disability-adjusted life years associated with primary liver cancer in the Asia-Pacific region. During the study period, there were an estimated 364,700 new cases of primary liver cancer and 324,100 deaths, accounting for 68 and 67% of the global totals, respectively. Upward trends were observed in the age-standardized incidence rates of primary liver cancer due to metabolic dysfunction-associated fatty liver disease (MASLD) and alcohol-associated liver disease (ALD) in the Asia-Pacific region, as well as an increase in primary liver cancer from Hepatitis B virus infection in the Western Pacific region. Notably, approximately 17% of new cases occurred in individuals aged 15-49 years. Despite an overall decline in the burden of primary liver cancer in the Asia-Pacific region over the past decade, increases in incidence were noted for several etiologies, including MASLD and ALD. However, viral hepatitis remains the leading cause, responsible for over 60% of the total burden. These findings underscore the urgent need for comprehensive strategies to address the rising burden of primary liver cancer in the Asia-Pacific region.


Assuntos
Neoplasias Hepáticas , Humanos , Neoplasias Hepáticas/epidemiologia , Masculino , Incidência , Feminino , Ásia/epidemiologia , Pessoa de Meia-Idade , Adulto , Idoso , Carga Global da Doença/tendências , Adolescente , Adulto Jovem , Anos de Vida Ajustados por Deficiência , Prevalência
11.
Hepatol Int ; 2024 Jun 24.
Artigo em Inglês | MEDLINE | ID: mdl-38913148

RESUMO

Metabolic dysfunction-associated fatty liver disease (MAFLD) is the liver manifestation of a metabolic syndrome and is highly prevalent in the general population. There has been significant progress in non-invasive tests for MAFLD, from the diagnosis of fatty liver and monitoring of liver fat content in response to intervention, to evaluation of liver fibrosis and its change over time, and from risk stratification of patients within the context of clinical care pathways, to prognostication. Various non-invasive tests have also been developed to assess for fibrotic metabolic dysfunction-associated steatohepatitis, which has emerged as an important diagnostic goal, particularly in the context of clinical trials. Non-invasive tests can be used to diagnose clinically significant portal hypertension so that intervention can be administered to reduce the risk of decompensation. Furthermore, the use of risk stratification algorithms can identify at-risk patients for hepatocellular carcinoma surveillance. Beyond the liver, various tests that evaluate cardiovascular disease risk, assess sarcopenia and measure patient reported outcomes, can be utilized to improve the care of patients with MAFLD. This review provides an up-to-date overview of these non-invasive tests and the limitations of liver biopsy in the management of patients with MAFLD.

12.
Dig Dis ; : 1-13, 2024 Jun 17.
Artigo em Inglês | MEDLINE | ID: mdl-38885622

RESUMO

INTRODUCTION: Chronic liver disease (CLD) is associated with increased morbidity and mortality. Understanding health disparities can inform appropriate interventions. We aimed to study mortality outcomes of those with CLD by the income level (income-to-poverty ratio <5 as lower income and ≥5 as higher income). METHODS: In this retrospective cohort study, we analyzed data of adults from the National Health and Nutrition Examination Survey, 1999-2018. CLD included viral hepatitis, nonalcoholic fatty liver disease (NAFLD), and alcohol-associated liver disease (ALD). RESULTS: We analyzed 59,204 adults: 47,224 without CLD and 11,980 with CLD. The CLD group was older, more likely male, racial/ethnic minority groups or foreign-born, and had lower educational and income levels (p < 0.001). Most (80.02%) CLD participants did not have college degrees and had lower income (79.18%). Among CLD participants, similar differences were observed between lower and higher income groups. Lower income participants with CLD had significantly higher 10-year cumulative mortality compared to higher income CLD participants (15.26 vs. 8.00%, p < 0.001), with consistent findings in viral hepatitis and NAFLD subgroups (p < 0.001) but not ALD (p = 0.71). Adjusting for age, sex, race, birthplace, lower income CLD participants were 2.01 (hazard ratio [HR]: 2.01; 95% CI: 1.79-2.26) times more likely to die overall and in viral hepatitis (HR: 2.05; 95% CI: 1.31-3.24) and NAFLD subgroups (HR: 2.32; 95% CI: 1.69-3.18) but not ALD (HR: 1.17; 95% CI: 0.55-2.51). CONCLUSION: Lower income, foreign-born, and racial/ethnic minority groups were disproportionately represented among those with CLD, with lower income and CLD individuals having double the mortality risk compared to their higher income counterparts. Interventions should be culturally appropriate and address socioeconomic barriers.

15.
Aliment Pharmacol Ther ; 60(2): 212-223, 2024 07.
Artigo em Inglês | MEDLINE | ID: mdl-38693757

RESUMO

BACKGROUND: Adverse outcomes of cirrhosis remain a top priority. AIMS: We examined the distribution of cirrhosis causes, HCC incidence and mortality and related changes over time in a nationwide U.S. METHODS: A retrospective study of a national sample of commercially insured patients with cirrhosis from Optum's de-identified Clinformatics® Data Mart Database (CDM). RESULTS: A total of 628,743 cirrhosis cases were identified with 45% having NAFLD, 19.5% HCV, and 16.3% ALD. African Americans had the highest rate of decompensation (60.6%), while Asians had the highest rate of HCC (2.4%), both p < 0.001. African Americans more frequently had HCV (28.4%) while Hispanic/Latinos more frequently had NAFLD (49.2%, p < 0.001). Patients in the 2014-2021 cohort were significantly older (63.0 ± 12.8 vs. 57.0 ± 14.3), less frequently decompensated (54.5% vs. 58.3%) but more frequently had HCC (1.7% vs. 0.6%) and NAFLD (46.5% vs. 44.2%), all p < 0.001. The overall annual incidence of HCC was 0.76% (95% CI: 0.75-0.77) with a 5-year cumulative incidence of 4.03% (95% CI: 3.98-4.09), with significant variation by sex, race/ethnicity, and cirrhosis aetiology. The overall median years of survival were 11.4 (95% CI: 11.3-11.5) with a 5-year cumulative survival of 73.4% (95% CI: 73.3%-73.6%), also with significant disparities in similar subgroups (lowest in cryptogenic cirrhosis and worse in 2014-2021 vs. 2003-2013). The 2014-2021 period was independently associated with worse survival (aHR: 1.14, 95% CI: 1.08-1.20). CONCLUSIONS: HCC incidence and survival vary by aetiology among patients with cirrhosis, with cryptogenic cirrhosis having the lowest survival and lower survival in the more recent time period.


Assuntos
Carcinoma Hepatocelular , Cirrose Hepática , Neoplasias Hepáticas , Humanos , Masculino , Feminino , Cirrose Hepática/mortalidade , Cirrose Hepática/epidemiologia , Cirrose Hepática/complicações , Pessoa de Meia-Idade , Estudos Retrospectivos , Estados Unidos/epidemiologia , Idoso , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/epidemiologia , Incidência , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/epidemiologia , Taxa de Sobrevida , Hepatopatia Gordurosa não Alcoólica/mortalidade , Hepatopatia Gordurosa não Alcoólica/epidemiologia , Hepatopatia Gordurosa não Alcoólica/complicações , Adulto
16.
J Viral Hepat ; 31(7): 372-382, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38590002

RESUMO

The impact of concurrent fatty liver (FL) on response to antiviral therapy in chronic hepatitis B (CHB) patients has not been well characterized. We aimed to systematically review and analyse antiviral treatment response in CHB patients with and without FL. We searched PubMed, Embase, Web of Science and the Cochrane Library databases from inception to 31 May 2023 for relevant studies. Biochemical response (BR), complete viral suppression (CVS) and hepatitis B e antigen (HBeAg) seroconversion in CHB patients with FL (CHB-FL) and without FL (non-FL CHB) were compared. In an initial pool of 2101 citations, a total of 10 studies involving 2108 patients were included. After 12 weeks of treatment, CHB-FL patients as compared with non-FL CHB patients had lower BR rate (48.37% [108/227] vs. 72.98% [126/174], p = .04) but similar trend for CVS (36.86% [80/227] vs. 68.81% [114/174], p = .05) and similar rates of HBeAg seroconversion (6.59% [7/103] vs. 7.40% [7/110], p = .89). However, at week 48, there were no statistically significant differences between CHB-FL and non-FL CHB patients in any of the outcomes, including BR (60.03% [213/471] vs. 69.37% [314/717], p = .67), CVS (65.63% [459/746] vs. 73.81% [743/1132], p = .27) and HBeAg seroconversion (10.01% [30/275] vs. 14.06% [65/453], p = .58) with similar findings for week 96. BR rate was lower in CHB-FL patients after 12 weeks of antiviral treatment. However, after a longer follow-up of either 48 or 96 weeks, no statistically significant differences were observed in BR, CVS or HBeAg seroconversion rates between CHB patients with and without FL.


Assuntos
Antivirais , Fígado Gorduroso , Antígenos E da Hepatite B , Hepatite B Crônica , Humanos , Hepatite B Crônica/tratamento farmacológico , Antivirais/uso terapêutico , Antígenos E da Hepatite B/sangue , Resultado do Tratamento , Soroconversão , Vírus da Hepatite B/imunologia , Vírus da Hepatite B/efeitos dos fármacos , DNA Viral/sangue
17.
Med ; 5(7): 797-815.e2, 2024 Jul 12.
Artigo em Inglês | MEDLINE | ID: mdl-38677287

RESUMO

BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) is highly prevalent in children and adolescents, particularly those with obesity. NAFLD is considered a hepatic manifestation of the metabolic syndrome due to its close associations with abdominal obesity, insulin resistance, and atherogenic dyslipidemia. Experts have proposed an alternative terminology, metabolic dysfunction-associated fatty liver disease (MAFLD), to better reflect its pathophysiology. This study aimed to develop consensus statements and recommendations for pediatric MAFLD through collaboration among international experts. METHODS: A group of 65 experts from 35 countries and six continents, including pediatricians, hepatologists, and endocrinologists, participated in a consensus development process. The process encompassed various aspects of pediatric MAFLD, including epidemiology, mechanisms, screening, and management. FINDINGS: In round 1, we received 65 surveys from 35 countries and analyzed these results, which informed us that 73.3% of respondents agreed with 20 draft statements while 23.8% agreed somewhat. The mean percentage of agreement or somewhat agreement increased to 80.85% and 15.75%, respectively, in round 2. The final statements covered a wide range of topics related to epidemiology, pathophysiology, and strategies for screening and managing pediatric MAFLD. CONCLUSIONS: The consensus statements and recommendations developed by an international expert panel serve to optimize clinical outcomes and improve the quality of life for children and adolescents with MAFLD. These findings emphasize the need for standardized approaches in diagnosing and treating pediatric MAFLD. FUNDING: This work was funded by the National Natural Science Foundation of China (82070588, 82370577), the National Key R&D Program of China (2023YFA1800801), National High Level Hospital Clinical Research Funding (2022-PUMCH-C-014), the Wuxi Taihu Talent Plan (DJTD202106), and the Medical Key Discipline Program of Wuxi Health Commission (ZDXK2021007).


Assuntos
Consenso , Hepatopatia Gordurosa não Alcoólica , Humanos , Hepatopatia Gordurosa não Alcoólica/epidemiologia , Hepatopatia Gordurosa não Alcoólica/terapia , Hepatopatia Gordurosa não Alcoólica/metabolismo , Hepatopatia Gordurosa não Alcoólica/diagnóstico , Criança , Adolescente , Síndrome Metabólica/epidemiologia , Síndrome Metabólica/diagnóstico , Síndrome Metabólica/terapia , Síndrome Metabólica/metabolismo
18.
J Gastroenterol Hepatol ; 39(6): 1190-1197, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38480009

RESUMO

BACKGROUND AND AIM: The benefits of entecavir (ETV) versus tenofovir disoproxil fumarate (TDF) in reducing the development of chronic hepatitis B (CHB)-related hepatocellular carcinoma remain controversial. Whether mortality rates differ between patients with CHB treated with ETV and those treated with TDF is unclear. METHODS: A total of 2542 patients with CHB treated with either ETV or TDF were recruited from a multinational cohort. A 1:1 propensity score matching was performed to balance the differences in baseline characteristics between the two patient groups. We aimed to compare the all-cause, liver-related, and non-liver-related mortality between patients receiving ETV and those receiving TDF. RESULTS: The annual incidence of all-cause mortality in the entire cohort was 1.0/100 person-years (follow-up, 15 757.5 person-years). Patients who received TDF were younger and had a higher body mass index, platelet count, hepatitis B virus deoxyribonucleic acid levels, and proportion of hepatitis B e-antigen seropositivity than those who received ETV. The factors associated with all-cause mortality were fibrosis-4 index > 6.5 (hazard ratio [HR]/confidence interval [CI]: 3.13/2.15-4.54, P < 0.001), age per year increase (HR/CI: 1.05/1.04-1.07, P < 0.001), alanine aminotransferase level per U/L increase (HR/CI: 0.997/0.996-0.999, P = 0.003), and γ-glutamyl transferase level per U/L increase (HR/CI: 1.002/1.001-1.003, P < 0.001). No significant difference in all-cause mortality was observed between the ETV and TDF groups (log-rank test, P = 0.69). After propensity score matching, no significant differences in all-cause, liver-related, or non-liver-related mortality were observed between the two groups. CONCLUSIONS: Long-term outcomes of all-cause mortality and liver-related and non-liver-related mortality did not differ between patients treated with ETV and those receiving TDF.


Assuntos
Antivirais , Guanina , Hepatite B Crônica , Tenofovir , Humanos , Hepatite B Crônica/tratamento farmacológico , Hepatite B Crônica/mortalidade , Tenofovir/uso terapêutico , Guanina/análogos & derivados , Guanina/uso terapêutico , Masculino , Feminino , Pessoa de Meia-Idade , Antivirais/uso terapêutico , Adulto , Estudos de Coortes , Carcinoma Hepatocelular/mortalidade , Neoplasias Hepáticas/mortalidade , Pontuação de Propensão
20.
Hepatology ; 80(1): 87-101, 2024 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-38381705

RESUMO

BACKGROUND AND AIMS: Despite the substantial impact of environmental factors, individuals with a family history of liver cancer have an increased risk for HCC. However, genetic factors have not been studied systematically by genome-wide approaches in large numbers of individuals from European descent populations (EDP). APPROACH AND RESULTS: We conducted a 2-stage genome-wide association study (GWAS) on HCC not affected by HBV infections. A total of 1872 HCC cases and 2907 controls were included in the discovery stage, and 1200 HCC cases and 1832 controls in the validation. We analyzed the discovery and validation samples separately and then conducted a meta-analysis. All analyses were conducted in the presence and absence of HCV. The liability-scale heritability was 24.4% for overall HCC. Five regions with significant ORs (95% CI) were identified for nonviral HCC: 3p22.1, MOBP , rs9842969, (0.51, [0.40-0.65]); 5p15.33, TERT , rs2242652, (0.70, (0.62-0.79]); 19q13.11, TM6SF2 , rs58542926, (1.49, [1.29-1.72]); 19p13.11 MAU2 , rs58489806, (1.53, (1.33-1.75]); and 22q13.31, PNPLA3 , rs738409, (1.66, [1.51-1.83]). One region was identified for HCV-induced HCC: 6p21.31, human leukocyte antigen DQ beta 1, rs9275224, (0.79, [0.74-0.84]). A combination of homozygous variants of PNPLA3 and TERT showing a 6.5-fold higher risk for nonviral-related HCC compared to individuals lacking these genotypes. This observation suggests that gene-gene interactions may identify individuals at elevated risk for developing HCC. CONCLUSIONS: Our GWAS highlights novel genetic susceptibility of nonviral HCC among European descent populations from North America with substantial heritability. Selected genetic influences were observed for HCV-positive HCC. Our findings indicate the importance of genetic susceptibility to HCC development.


Assuntos
Carcinoma Hepatocelular , Predisposição Genética para Doença , Estudo de Associação Genômica Ampla , Neoplasias Hepáticas , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Carcinoma Hepatocelular/genética , Estudos de Casos e Controles , Loci Gênicos , Neoplasias Hepáticas/genética , América do Norte/epidemiologia , Polimorfismo de Nucleotídeo Único , População Branca/genética , População Norte-Americana
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