Publications by authors named "Hye Sook Chang"

Background & Aims: Although non-alcoholic fatty liver disease (NAFLD) is becoming a leading cause of hepatocellular carcinoma (HCC), HCC risk in non-cirrhotic NAFLD received little attention. We aimed to develop and validate an HCC risk prediction model for non-cirrhotic NAFLD.

Methods: A nationwide cohort of non-cirrhotic NAFLD patients in Korea was recruited to develop a risk prediction model and validate it internally (n = 409 088).

View Article and Find Full Text PDF

Background And Aim: Although obesity is a known risk factor for colorectal neoplasms, the correlation between weight change and colorectal neoplasm is unclear. Thus, we aim to evaluate the association between weight change and advanced colorectal neoplasm (ACRN) recurrence during post-polypectomy surveillance colonoscopy.

Methods: This retrospective cohort study included 7473 participants diagnosed with colorectal neoplasms between 2003 and 2010 who subsequently underwent surveillance colonoscopies until 2020.

View Article and Find Full Text PDF

Introduction: Abdominal obesity increases the risk of gastroesophageal reflux disease (GERD). This study aimed to determine the association between GERD and abdominal fat area quantified by computed tomography (CT).

Methods: We analyzed the effect of abdominal fat area on gastroesophageal reflux symptoms and erosive esophagitis using logistic regression models in 5,338 participants who underwent abdominal fat measurement CT and screening esophagogastroduodenoscopy.

View Article and Find Full Text PDF

Immune adaptation plays an essential role in determining pregnancy, which has been shown to be dependent on sufficient immunological tolerance mediated by FOXP3+ regulatory T cells. Recently, an X-linked maternal single-nucleotide polymorphism (SNP), located 2175 base pairs upstream of the start codon in the bovine FOXP3 gene (NC_037357.1: g.

View Article and Find Full Text PDF

Objectives: Post-polypectomy surveillance intervals should be determined based on index colonoscopy findings. However, the risk of metachronous lesions, resulting from the coexistence of adenoma and sessile serrated lesions (SSLs), has rarely been addressed. We evaluated the impact of synchronous SSL on the risk of metachronous lesions within similar adenoma risk groups.

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to investigate the connection between serum lipid levels and gastric cancer, as previous findings were conflicting.
  • 412 gastric cancer patients and 2,934 control subjects were analyzed to compare serum lipid profiles, revealing that lower HDL-C and higher LDL-C levels were evident in the cancer group.
  • The research concluded that lower HDL-C and higher LDL-C are significant risk factors for developing gastric cancer, with certain lipid levels also linked to specific tumor characteristics, although no serum lipids affected overall survival rates.
View Article and Find Full Text PDF

Background: Accurate prediction of tumor invasion depth in superficial esophageal squamous carcinoma (SESC) is essential for deciding the appropriate treatment strategy. We proposed novel endoscopic criteria to differentiate between mucosal and submucosal esophageal cancers and to evaluate the diagnostic accuracy and usefulness of the criteria.

Methods: A total of 352 patients who underwent endoscopic or surgical resection for SESC between 1991 and 2010 were included.

View Article and Find Full Text PDF

Background And Aim: The clinical significance of incidental pancreatic cystic lesions (PCLs) remains unclear in those that are not accompanied by worrisome features or high-risk stigmata. We aimed to investigate the natural course of PCLs without any risk features and examine the clinical factors associated with their progression.

Methods: We conducted a retrospective cohort study of 427 patients with PCLs, which were incidentally detected by computed tomography between January 2003 and December 2012.

View Article and Find Full Text PDF

Background: Coexistence of colorectal neoplasia and atherosclerotic cardiovascular disease has been reported. Subclinical atherosclerosis can be evaluated noninvasively and easily by assessing carotid intima-media thickness (CIMT) and carotid plaque using ultrasonography.

Aims: We aimed to evaluate the association between carotid ultrasonography findings and colorectal conventional adenoma (AD) in health checkup examinees.

View Article and Find Full Text PDF

Background & Aims: We investigated the prevalence of sessile serrated polyps (SSPs) and the association between SSP risk and modifiable lifestyle factors in asymptomatic young adults.

Methods: We performed a cross-sectional study using a screening colonoscopy database of 13,618 asymptomatic subjects age 30 to 49 years, and 17,999 subjects age 50 to 75 years. We investigated risk factors of SSP by multivariable analyses of clinical data that included cigarette smoking and alcohol consumption.

View Article and Find Full Text PDF

Background: Although many epidemiologic studies have evaluated the effect of Helicobacter pylori eradication on gastric cancer, the effect is still uncertain in general populations. We evaluated whether H. pylori eradication would affect the incidence of gastric cancer in healthy asymptomatic populations.

View Article and Find Full Text PDF

Background & Aims: Little is known about the association between non-alcoholic fatty liver disease (NAFLD) and cancer development. This study investigated the cancer incidence rates in NAFLD and analysed the association between NAFLD and cancer development.

Methods: This historical cohort study included subjects who were followed up for >1 year after having a heath checkup at a tertiary hospital in Korea from September 1, 2004 to December 31, 2005.

View Article and Find Full Text PDF

Background/aims: Because of the poor prognosis of diffuse-type gastric cancer, early detection is important. We investigated the clinical characteristics and prognosis of diffuse-type early gastric cancer (EGC) diagnosed in subjects during health check-ups.

Methods: Among 121,111 subjects who underwent gastroscopy during a routine health check-up, we identified 282 patients with 286 EGC lesions and reviewed their clinical and tumor-specific parameters.

View Article and Find Full Text PDF

Background/aims: is a major risk factor for atrophic gastritis (AG) and gastric cancer. The correlation between , AG and colorectal neoplasm (CRN) has only been examined in a limited number of studies, and findings have been inconclusive. We aimed to investigate the association between infection status, AG and advanced CRN.

View Article and Find Full Text PDF

Background: The recurrence rate after standard cold forceps polypectomy (CFP) of diminutive polyps of ≤5 mm has not been fully determined. The aim of this study was to analyze the long-term follow-up results and recurrence rate after CFP of diminutive polyps.

Methods: We retrospectively reviewed the medical records of 884 (738 men; age 53 years) asymptomatic subjects who underwent surveillance colonoscopy after CFP of 1-2 diminutive adenomatous polyps.

View Article and Find Full Text PDF

Background And Aim: This study aimed to develop and validate a risk score model to estimate the probability of a metachronous advanced colorectal neoplasm (ACRN) at surveillance colonoscopy.

Methods: A retrospective analysis of a prospectively obtained database of 11,042 asymptomatic subjects who underwent surveillance colonoscopy after a screening colonoscopy was conducted. Subjects were randomly divided into derivation (n = 7730) and validation sets (n = 3312).

View Article and Find Full Text PDF

Background And Aim: Current guidelines recommend colon cancer screening for persons aged over 50 years. However, there are few data on colorectal cancer screening in 40- to 49-year-olds. This study assessed the prevalence and risk factors of colorectal neoplasms in 40- to 49-year-old Koreans.

View Article and Find Full Text PDF

Background And Aim: Although metabolic factors such as obesity and hyperlipidemia were reported to be associated with high prevalence of colorectal neoplasm (CRN), their influence on the occurrence of CRN at surveillance colonoscopy has not been clarified. The purpose of this study was to analyze the association between metabolic factors and the risk of CRN at the time of surveillance colonoscopy.

Methods: We reviewed the medical records of 1792 asymptomatic subjects (average 52.

View Article and Find Full Text PDF

Background/aims: Chicken skin mucosa (CSM), surrounding colorectal adenoma, is an endoscopic finding with pale yellow-speckled mucosa; however, its clinical significance is unknown. This study aimed to evaluate the prevalence and clinical characteristics of CSM, and the association between colorectal carcinogenesis and CSM.

Methods: This cross-sectional study was performed in 733 consecutive patients who underwent endoscopic polypectomy for colorectal adenoma after the screening of colonoscopy at the Asan Health Promotion Center between June 2009 and December 2011.

View Article and Find Full Text PDF

Background: Current guidelines for the surveillance colonoscopy interval are largely based on the most recent colonoscopy findings.

Aim: We aimed to evaluate differences in the probability of high-risk neoplasm recurrence according to the two previous colonoscopy findings.

Methods: This was a retrospective cohort study from a tertiary-care center.

View Article and Find Full Text PDF

Aims/introduction: Insulin has been associated with the risk of colorectal cancer (CRC). However, few studies have evaluated the association between insulin and colorectal adenoma. We investigated the relationship between fasting serum insulin levels or homeostasis model assessment of insulin resistance (HOMA-IR) and colorectal adenoma.

View Article and Find Full Text PDF

A single nucleotide substitution (c.-6-180T>G) associated with resistance to phenobarbital therapy has been found in the canine MDR1/ABCB1 gene in Border Collies with idiopathic epilepsy. In the present study, a PCR-restriction fragment length polymorphism assay was developed for genotyping this mutation, and a genotyping survey was carried out in a population of 472 Border Collies in Japan to determine the current allele frequency.

View Article and Find Full Text PDF

GM2 gangliosidosis variant 0 (Sandhoff disease, SD) is a fatal, progressive neurodegenerative lysosomal storage disease caused by mutations of the HEXB gene. In canine SD, a pathogenic mutation (c.283delG) of the canine HEXB gene has been identified in toy poodles.

View Article and Find Full Text PDF

Angiotensin-converting enzyme (ACE) is a key enzyme in the renin-angiotensin system (RAS). ACE2 is a newly identified member of the RAS. The present immunohistochemical study focused on changes in intrarenal ACE and ACE2 immunoreactivity in feline and canine chronic kidney disease (CKD).

View Article and Find Full Text PDF

Background: Canine GM1 gangliosidosis is a fatal disease in the Shiba Inu breed, which is one of the most popular traditional breeds in Japan and is maintained as a standard breed in many countries. Therefore, it is important to control and reduce the prevalence of GM1 gangliosidosis for maintaining the quality of this breed and to ensure supply of healthy dogs to prospective breeders and owners. This molecular epidemiological survey was performed to formulate an effective strategy for the control and prevention of this disease.

View Article and Find Full Text PDF