Publications by authors named "Benjamin Koh"

Background & Aims: The epidemiology of adult primary liver cancer continues to evolve, owing to the increasing prevalence of metabolic disease, rising alcohol consumption, advances in vaccination for HBV, and antiviral therapy for HCV. Disparities in care and the burden of liver cancer between populations persist. We assess trends in the burden of liver cancer and contributions by various etiologies across 204 countries and territories from 2010 to 2021.

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  • Chronic liver disease is a significant risk factor for cholangiocarcinoma (CCA), but its prevalence among CCA patients was previously unclear.
  • A meta-analysis included data from 118,068 CCA patients, finding that about 25% had chronic liver disease and over 10% had cirrhosis.
  • The study revealed a stronger association between chronic liver disease and intrahepatic CCA compared to extrahepatic CCA, except for primary sclerosing cholangitis, which was linked to extrahepatic forms.
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  • Metabolic dysfunction-associated steatohepatitis (MASH) is a major cause of liver disease, and changes in liver fat can be monitored using MRI proton-density-fat fraction (PDFF).
  • A systematic review identified 39 clinical trials evaluating various drug treatments for MASH, focusing on their effectiveness in reducing liver fat as measured by MRI-PDFF.
  • The study found aldafermin and pegozafermin to be the most effective therapies for reducing liver fat at 24 weeks, while other options like efinopegdutide and semaglutide also showed promising results for significant fat reduction.
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Background: To overcome the limitations of the term "non-alcoholic fatty liver disease" (NAFLD), the term metabolic-associated steatotic liver disease (MASLD) was introduced. While epidemiologic studies have been conducted on MASLD, there is limited evidence on its associated sex and ethnic variations.

Aims: This study assesses the differences across sex and race-ethnicity on the prevalence, associated risk factors and adverse outcomes in individuals with MASLD.

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  • - The study analyzed data from the United Network for Organ Sharing between 2000 and 2022 to evaluate how the causes of liver disease impact liver transplantation outcomes for individuals with hepatocellular carcinoma (HCC), focusing on differences between men and women.
  • - Findings revealed that nonalcoholic steatohepatitis (NASH) is the fastest-growing cause of liver disease in women and has surpassed chronic hepatitis C as the leading cause for both genders on transplant waitlists.
  • - Women with HCC experience longer wait times for liver transplants and have lower rates of receiving transplants compared to men, though they tend to have better posttransplant survival rates when suffering from NASH-related HCC.
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Background/aims: Proton pump inhibitors (PPIs) are frequently prescribed to cirrhotic patients, but there is limited longitudinal evidence regarding their effects. This study aimed to assess the impact of PPIs on adverse events in cirrhotic patients.

Methods: A comprehensive search was conducted using the Medline and Embase databases to identify relevant articles.

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Background: Emerging data suggest that outcomes for advanced hepatocellular carcinoma (HCC) treated with sorafenib may have improved over time. We aimed to provide robust, time-to-event estimates of survival outcomes for sorafenib in advanced HCC.

Summary: In this systematic review and individual patient data meta-analysis of randomized-controlled trials (RCTs), we searched MEDLINE and Embase from inception till September 2022 for RCTs that provided data for overall survival (OS) and progression-free survival (PFS) for sorafenib monotherapy as first-line systemic therapy for advanced HCC.

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  • The study investigates the long-term risks associated with metabolic dysfunction-associated steatotic liver disease (MASLD) by analyzing data from 129 original studies comparing MASLD patients to those without the condition.* -
  • Results indicate that individuals with MASLD have a higher risk of various complications, including cardiovascular issues, metabolic disorders (like diabetes and hypertension), chronic kidney disease, and certain cancers, with those having advanced liver disease at an even greater risk.* -
  • The findings highlight the need for comprehensive treatment approaches for MASLD due to its serious multisystem effects on health.*
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Importance: Emerging data suggest that the incidence of early-onset cancers, defined as cancers diagnosed in people younger than 50 years, is increasing, but updated data are limited.

Objective: To characterize the patterns in the incidence of early-onset cancers in the US from 2010 to 2019 and provide granular data on the cancers with the fastest-growing incidence rates.

Design, Setting, And Participants: This population-based cohort study analyzed data from 17 National Cancer Institute Surveillance, Epidemiology, and End Results registries from January 1, 2010, to December 31, 2019.

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Background: Liver transplantation (LT) offers patients with decompensated cirrhosis the best chance at long-term survival. With the rising prevalence of diabetes, further clarity is needed on the impact of receiving a liver allograft from a donor with diabetes on post-LT outcomes. This study aims to evaluate the impact of donor diabetes on clinical outcomes after LT.

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The use of immune checkpoint inhibitors (ICIs) targeting PD-L1/PD-1 and CTLA-4 has transformed the oncology practice of hepatocellular carcinoma. However, only 25-30% of the patients with advanced HCC treated with atezolizumab-bevacizumab or tremelimumab-durvalumab (STRIDE) respond initially, and mechanistic biomarkers and novel treatment strategies are urgently needed for patients who present with or acquire resistance to first-line ICI-based therapies. The recent approval of the STRIDE regimen has also engendered new questions, such as patient selection factors (e.

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Background: The prevalence of liver fibrosis detected by non-invasive imaging in alpha-1-antitrypsin (AAT) deficiency has not been systematically assessed.

Aims: We conducted a systematic review and meta-analysis to determine the prevalence of significant fibrosis and advanced fibrosis in AAT deficiency based on non-invasive imaging.

Methods: Medline and Embase electronic databases were searched for studies from inception to 13 November 2022 that provided data for the prevalence of fibrosis in adults with AAT deficiency.

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Background And Aims: Fatty liver is the commonest liver condition globally and traditionally associated with NAFLD. A consensus meeting was held in Chicago to explore various terminologies. Herein, we explore the proposed changes in nomenclature in a population data set from the US.

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This paper presents a novel two-axis shape sensor based on optical optoelectronic sensors and integrated with a flexible manipulator arm to measure the overall shape of the robotic arm. The disc-shape bio-compatible sensor presented here can be embedded as a sensing system into flexible manipulators and is applicable to the geometry of its structure and to the structure of any other similar multi-segment robotic manipulator. Design and calibration procedures of the device are introduced: experimental results allow defining a sensor matrix for real-time estimation of the pitch and roll of the plate above the sensor and confirms the usefulness of the proposed optical sensing approach.

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Athletes are high achievers who may seek creative or unconventional methods to improve performance. The literature indicates that athletes are among the heaviest users of complementary and alternative medicine (CAM) and thus may pioneer population trends in CAM use. Unlike non-athletes, athletes may use CAM not just for prevention, treatment or rehabilitation from illness or injuries, but also for performance enhancement.

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Introduction: We reviewed the epidemiology of hand, foot and mouth disease (HFMD) in Singapore after the 2000 epidemic caused by Enterovirus 71 (EV71), with particular reference to the cyclical pattern, predominant circulating enteroviruses and impact of prevention and control measures in preschool centres.

Materials And Methods: We analysed the epidemiological data from all clinical cases and deaths of HFMD diagnosed by medical practitioners and notified to the Ministry of Health, as well as laboratory data on enteroviruses detected among HFMD patients maintained by the Department of Pathology, Singapore General Hospital, and the Microbiology Laboratory, KK Women's and Children's Hospital from 2001 to 2007.

Results: The incidence rate was highest in the 0 to 4 years old age group, with males being predominant.

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Introduction: We investigated the 2005 outbreak of dengue fever (DF)/dengue haemorrhagic fever (DHF) to determine its epidemiological, virological and entomological features to further understand the unprecedented resurgence.

Materials And Methods: All physician-diagnosed, laboratory-confirmed cases of DF/DHF notified to the Ministry of Health, Singapore during the outbreak as well as entomological and virological data were analysed retrospectively.

Results: A total of 14,006 cases of DF/DHF comprising 13,625 cases of DF and 381 cases of DHF, including 27 deaths were reported, giving an incidence rate of 322.

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Psychiatric research into violent offences, particularly murder, have been scant in the South East Asian region, with the last major review of homicides in Singapore and their association with psychiatric disorders being as far back as 1985. This study seeks to update the psychiatric community on individuals charged with murder in Singapore from 1997 to 2001 and particularly to further investigate the phenomenon of 'migration psychosis' in relation to foreigners in this sample who have committed homicide. One hundred and ten individuals in Singapore were charged with murder between 1997 and 2001.

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Severe acute respiratory syndrome (SARS) was imported into Singapore in late February 2003 by a local resident who returned from a holiday in Hong Kong and started an outbreak in the hospital where she was admitted on 1 March 2003. The disease subsequently spread to 4 other healthcare institutions and a vegetable wholesale centre. During the period between March and May 2003, 238 probable SARS cases, including 8 imported cases and 33 deaths, were reported.

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Synopsis of recent research by authors named "Benjamin Koh"

  • Benjamin Koh's recent research entails a comprehensive examination of liver diseases, with a particular focus on liver cancer, metabolic dysfunction-associated liver disease, and disparities in care among different demographics.
  • His studies highlight the evolving epidemiology of liver cancer from 2010 to 2021, investigating the burden of disease and the influence of risk factors such as chronic liver disease and metabolic disorders.
  • Additionally, Koh's work emphasizes the need for understanding sex and race-ethnic disparities in liver conditions and their treatment outcomes, aiming to improve patient care and address healthcare inequalities.