1.Association of Clinical Characteristics With Familial Hypercholesterolaemia Variants in a Lipid Clinic Setting:A Case-Control Study
Bobby V LI ; Andrew D LAURIE ; Nicola J REID ; Michelle A LEATH ; Richard I KING ; Huan K CHAN ; Chris M FLORKOWSKI
Journal of Lipid and Atherosclerosis 2024;13(1):29-40
Objective:
Familial hypercholesterolaemia (FH) variant positive subjects have over double the cardiovascular risk of low-density-lipoprotein-cholesterol (LDL-C) matched controls. It is desirable to optimise FH variant detection.
Methods:
We identified 213 subjects with FH gene panel reports (LDLR, APOB, PCSK9, and APOE) based on total cholesterol >310 mg/dL; excluding triglycerides >400 mg/dL, cascade screening, and patients without pre-treatment LDL-C recorded. Demographic, clinical and lipid parameters were recorded.
Results:
A 31/213 (14.6%) patients had pathogenic or likely pathogenic FH variants. 10/213 (4.7%) had variants of uncertain significance. Compared with patients without FH variants, patients with FH variants were younger (median age, 39 years vs. 48 years), had more tendon xanthomata (25.0% vs. 11.4%), greater proportion of first degree relatives with total cholesterol >95th percentile (40.6% vs. 16.5%), higher LDL-C (median, 271 mg/dL vs. 236 mg/dL), and lower triglycerides (median, 115 mg/dL vs. 159 mg/dL). The Besseling et al. model (c-statistic 0.798) improved FH variant discrimination over Friedewald LDL-C (c-statistic 0.724), however, Dutch Lipid Clinic Network Score (DLCNS) did not (c-statistic 0.665). Sampson LDL-C (c-statistic 0.734) had similar discrimination to Friedewald.
Conclusion
Although tendon xanthomata and first degree relatives with high total cholesterol >95th percentile were associated with FH variants, DLCNS or Simon Broome criteria did not improve FH detection over LDL-C. Sampson LDL-C did not significantly improve discrimination over Friedewald. Although lower triglycerides and younger age of presentation are positively associated with presence of FH variants, this information is not commonly used in FH detection algorithms apart from Besseling et al.
2.Vaccine Effect on Household Transmission of Omicron and Delta SARS-CoV-2 Variants
Yong Chan KIM ; Bongyoung KIM ; Nak-Hoon SON ; Namwoo HEO ; Yooju NAM ; Areum SHIN ; Andrew Jihoon YANG ; Min Hyung KIM ; Taeyoung KYONG ; Eawha KANG ; Yoon Soo PARK ; Heejung KIM
Journal of Korean Medical Science 2023;38(1):e9-
Background:
We evaluated the household secondary attack rate (SAR) of the omicron and delta severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants, according to the vaccination status of the index case and household contacts; further, in vaccinated index cases, we evaluated the effect of the antibody levels on household transmission.
Methods:
A prospective cross-sectional study of 92 index cases and 197 quarantined household contacts was performed. Tests for SARS-CoV-2 variant type and antibody level were conducted in index cases, and results of polymerase chain reaction tests (during the quarantine period) were collected from contacts. Association of antibody levels in vaccinated index cases and SAR was evaluated by multivariate regression analysis.
Results:
The SAR was higher in households exposed to omicron variant (42%) than in those exposed to delta variant (27%) (P = 0.040). SAR was 35% and 23% for unvaccinated and vaccinated delta variant exposed contacts, respectively. SAR was 44% and 41% for unvaccinated and vaccinated omicron exposed contacts, respectively. Booster dose immunisation of contacts or vaccination of index cases reduced SAR of vaccinated omicron variant exposed contacts. In a model with adjustment, anti-receptor-binding domain antibody levels in vaccinated index cases were inversely correlated with household transmission of both delta and omicron variants.Neutralising antibody levels had a similar relationship.
Conclusion
Immunisation of household members may help to mitigate the current pandemic.
3.Evaluation of the relationship between cardiac calcification and cardiovascular disease using the echocardiographic calcium score in patients undergoing peritoneal dialysis: a cross-sectional study.
Ho-Kwan SIN ; Ping-Nam WONG ; Kin-Yee LO ; Man-Wai LO ; Shuk-Fan CHAN ; Kwok-Chi LO ; Yuk-Yi WONG ; Lo-Yi HO ; Wing-Tung KWOK ; Kai-Chun CHAN ; Andrew Kui-Man WONG ; Siu-Ka MAK
Singapore medical journal 2023;64(6):379-384
INTRODUCTION:
An echocardiographic calcium score (ECS) predicts cardiovascular disease (CVD) in the general population. Its utility in peritoneal dialysis (PD) patients is unknown.
METHODS:
This cross-sectional study assessed 125 patients on PD. The ECS (range 0-8) was compared between subjects with CVD and those without.
RESULTS:
Among the subjects, 54 had CVD and 71 did not. Subjects with CVD were older (69 years vs. 56 years, P < 0.001) and had a higher prevalence of diabetes mellitus (DM) (81.5% vs. 45.1%, P < 0.001). They had lower diastolic blood pressure (72 mmHg vs. 81 mmHg, P < 0.001), lower phosphate (1.6 mmol/L vs. 1.9 mmol/L, P = 0.002), albumin (30 g/L vs. 32 g/L, P = 0.001), parathyroid hormone (34.4 pmol/L vs. 55.8 pmol/L, P = 0.002), total cholesterol (4.5 vs. 4.9, P = 0.047), LDL cholesterol (2.4 mmol/L vs. 2.8 mmol/L, P = 0.019) and HDL cholesterol (0.8 mmol/L vs. 1.1 mmol/L, P = 0.002). The ECS was found to be higher in subjects with CVD than in those without (2 vs. 1, P = 0.001). On multivariate analysis, only DM and age were independently associated with CVD.
CONCLUSION
The ECS was significantly higher in PD patients with CVD than in those without, reflecting a higher vascular calcification burden in the former. It is a potentially useful tool to quantify vascular calcification in PD patients.
Humans
;
Cardiovascular Diseases/diagnostic imaging*
;
Cross-Sectional Studies
;
Calcium
;
Peritoneal Dialysis/adverse effects*
;
Vascular Calcification/epidemiology*
;
Echocardiography
4.The impact of obesity: a narrative review.
Benjamin Chih Chiang LAM ; Amanda Yuan Ling LIM ; Soo Ling CHAN ; Mabel Po Shan YUM ; Natalie Si Ya KOH ; Eric Andrew FINKELSTEIN
Singapore medical journal 2023;64(3):163-171
Obesity is a disease with a major negative impact on human health. However, people with obesity may not perceive their weight to be a significant problem and less than half of patients with obesity are advised by their physicians to lose weight. The purpose of this review is to highlight the importance of managing overweight and obesity by discussing the adverse consequences and impact of obesity. In summary, obesity is strongly related to >50 medical conditions, with many of them having evidence from Mendelian randomisation studies to support causality. The clinical, social and economic burdens of obesity are considerable, with these burdens potentially impacting future generations as well. This review highlights the adverse health and economic consequences of obesity and the importance of an urgent and concerted effort towards the prevention and management of obesity to reduce the burden of obesity.
Humans
;
Obesity
;
Overweight
;
Physicians
5.Establishment of Patient-Derived Pancreatic Cancer Organoids from Endoscopic Ultrasound-Guided Fine-Needle Aspiration Biopsies
Jee Hyung LEE ; Haeryoung KIM ; Sang Hyub LEE ; Ja-Lok KU ; Jung Won CHUN ; Ha Young SEO ; Soon Chan KIM ; Woo Hyun PAIK ; Ji Kon RYU ; Sang Kook LEE ; Andrew M. LOWY ; Yong-Tae KIM
Gut and Liver 2022;16(4):625-636
Background/Aims:
Three-dimensional cultures of human pancreatic cancer tissue also known as “organoids” have largely been developed from surgical specimens. Given that most patients present with locally advanced and/or metastatic disease, such organoids are not representative of the majority of patients. Therefore, we used endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) to collect pancreatic cancer tissues from patients with advanced pancreatic cancer to create organoids, and evaluated their utility in pancreatic cancer research.
Methods:
Single-pass EUS-FNA samplings were employed to obtain the tissue for organoid generation. After establishment of the organoid, we compared the core biopsy tissues with organoids using hematoxylin and eosin staining, and performed whole exome sequencing (WES) to detect mutational variants. Furthermore, we compared patient outcome with the organoid drug response to determine the potential utility of the clinical application of such organoid-based assays.
Results:
Organoids were successfully generated in 14 of 20 tumors (70%) and were able to be passaged greater than 5 times in 12 of 20 tumors (60%). Among them, we selected eight pairs of organoid and core biopsy tissues for detailed analyses. They showed similar patterns in hematoxylin and eosin staining. WES revealed mutations in KRAS, TP53, CDKN2A, SMAD4, BRCA1, and BRCA2 which were 93% homologous, and the mean nonreference discordance rate was 5.47%. We observed moderate drug response correlations between the organoids and clinical outcomes in patients who underwent FOLFIRINOX chemotherapy.
Conclusions
The established organoids from EUS-FNA core biopsies can be used for a suitable model system for pancreatic cancer research
6.Medium-term mortality after hip fractures and COVID-19: A prospective multi-centre UK study.
Gareth CHAN ; Ashish NARANG ; Arash AFRAMIAN ; Zaid ALI ; Joseph BRIDGEMAN ; Alastair CARR ; Laura CHAPMAN ; Henry GOODIER ; Catrin MORGAN ; Chang PARK ; Sarah SEXTON ; Kapil SUGAND ; Thomas WALTON ; Michael WILSON ; Ajay BELGAUMKAR ; Kieran GALLAGHER ; Koushik GHOSH ; Charles GIBBONS ; Joshua JACOB ; Andrew KEIGHTLEY ; Zuhair NAWAZ ; Khaled SARRAF ; Christopher WAKELING ; William KIEFFER ; Benedict ROGERS
Chinese Journal of Traumatology 2022;25(3):161-165
PURPOSE:
The COVID-19 pandemic has caused 1.4 million deaths globally and is associated with a 3-4 times increase in 30-day mortality after a fragility hip fracture with concurrent COVID-19 infection. Typically, death from COVID-19 infection occurs between 15 and 22 days after the onset of symptoms, but this period can extend up to 8 weeks. This study aimed to assess the impact of concurrent COVID-19 infection on 120-day mortality after a fragility hip fracture.
METHODS:
A multi-centre prospective study across 10 hospitals treating 8% of the annual burden of hip fractures in England between 1st March and 30th April, 2020 was performed. Patients whose surgical treatment was payable through the National Health Service Best Practice Tariff mechanism for "fragility hip fractures" were included in the study. Patients' 120-day mortality was assessed relative to their peri-operative COVID-19 status. Statistical analysis was performed using SPSS version 27.
RESULTS:
A total of 746 patients were included in this study, of which 87 (11.7%) were COVID-19 positive. Mortality rates at 30- and 120-day were significantly higher for COVID-19 positive patients relative to COVID-19 negative patients (p < 0.001). However, mortality rates between 31 and 120-day were not significantly different (p = 0.107), 16.1% and 9.4% respectively for COVID-19 positive and negative patients, odds ratio 1.855 (95% CI 0.865-3.978).
CONCLUSION
Hip fracture patients with concurrent COVID-19 infection, provided that they are alive at day-31 after injury, have no significant difference in 120-day mortality. Despite the growing awareness and concern of "long-COVID" and its widespread prevalence, this does not appear to increase medium-term mortality rates after a hip fracture.
COVID-19
;
Hip Fractures/surgery*
;
Humans
;
Pandemics
;
Prospective Studies
;
Retrospective Studies
;
State Medicine
;
United Kingdom/epidemiology*
7.Meeting Report: Translational Advances in Cancer Prevention Agent Development Meeting
Mark Steven MILLER ; Peter J. ALLEN ; Powel H. BROWN ; Andrew T. CHAN ; Margie L. CLAPPER ; Roderick H. DASHWOOD ; Shadmehr DEMEHRI ; Mary L. DISIS ; Raymond N. DUBOIS ; Robert J. GLYNN ; Thomas W. KENSLER ; Seema A. KHAN ; Bryon D. JOHNSON ; Karen T. LIBY ; Steven M. LIPKIN ; Susan R. MALLERY ; Emmanuelle J. MEUILLET ; Richard B.S. RODEN ; Robert E. SCHOEN ; Zelton D. SHARP ; Haval SHIRWAN ; Jill M. SIEGFRIED ; Chinthalapally V. RAO ; Ming YOU ; Eduardo VILAR ; Eva SZABO ; Altaf MOHAMMED
Journal of Cancer Prevention 2021;26(1):71-82
The Division of Cancer Prevention of the National Cancer Institute (NCI) and the Office of Disease Prevention of the National Institutes of Health co-sponsored the Translational Advances in Cancer Prevention Agent Development Meeting on August 27 to 28, 2020. The goals of this meeting were to foster the exchange of ideas and stimulate new collaborative interactions among leading cancer prevention researchers from basic and clinical research; highlight new and emerging trends in immunoprevention and chemoprevention as well as new information from clinical trials; and provide information to the extramural research community on the significant resources available from the NCI to promote prevention agent development and rapid translation to clinical trials. The meeting included two plenary talks and five sessions covering the range from pre-clinical studies with chemo/immunopreventive agents to ongoing cancer prevention clinical trials. In addition, two NCI informational sessions describing contract resources for the preclinical agent development and cooperative grants for the Cancer Prevention Clinical Trials Network were also presented.
8.Eosinophilic endotype of chronic obstructive pulmonary disease: similarities and differences from asthma
Andrew LI ; Hiang Ping CHAN ; Phyllis X.L. GAN ; Mei Fong LIEW ; W.S. Fred WONG ; Hui-Fang LIM
The Korean Journal of Internal Medicine 2021;36(6):1305-1319
Approximately 25% to 40% of patients with chronic obstructive pulmonary disease (COPD) have the eosinophilic endotype. It is important to identify this group accurately because they are more symptomatic and are at increased risk for exacerbations and accelerated decline in forced expiratory volume in the 1st second. Importantly, this endotype is a marker of treat ment responsiveness to inhaled corticosteroid (ICS), resulting in decreased mortality risk. In this review, we highlight differences in the biology of eosinophils in COPD compared to asthma and the different definitions of the COPD eosinophilic endotype based on sputum and blood eosinophil count (BEC) with the corresponding limitations. Although BEC is useful as a biomarker for eosinophilic COPD endotype, optimal BEC cut-offs can be combined with clinical characteristics to improve its sensitivity and specificity. A targeted approach comprising airway eosinophilia and appropriate clinical and physiological features may improve identification of subgroups of patients who would benefit from biologic therapy or early use of ICS for disease modification.
9.Meeting Report: Translational Advances in Cancer Prevention Agent Development Meeting
Mark Steven MILLER ; Peter J. ALLEN ; Powel H. BROWN ; Andrew T. CHAN ; Margie L. CLAPPER ; Roderick H. DASHWOOD ; Shadmehr DEMEHRI ; Mary L. DISIS ; Raymond N. DUBOIS ; Robert J. GLYNN ; Thomas W. KENSLER ; Seema A. KHAN ; Bryon D. JOHNSON ; Karen T. LIBY ; Steven M. LIPKIN ; Susan R. MALLERY ; Emmanuelle J. MEUILLET ; Richard B.S. RODEN ; Robert E. SCHOEN ; Zelton D. SHARP ; Haval SHIRWAN ; Jill M. SIEGFRIED ; Chinthalapally V. RAO ; Ming YOU ; Eduardo VILAR ; Eva SZABO ; Altaf MOHAMMED
Journal of Cancer Prevention 2021;26(1):71-82
The Division of Cancer Prevention of the National Cancer Institute (NCI) and the Office of Disease Prevention of the National Institutes of Health co-sponsored the Translational Advances in Cancer Prevention Agent Development Meeting on August 27 to 28, 2020. The goals of this meeting were to foster the exchange of ideas and stimulate new collaborative interactions among leading cancer prevention researchers from basic and clinical research; highlight new and emerging trends in immunoprevention and chemoprevention as well as new information from clinical trials; and provide information to the extramural research community on the significant resources available from the NCI to promote prevention agent development and rapid translation to clinical trials. The meeting included two plenary talks and five sessions covering the range from pre-clinical studies with chemo/immunopreventive agents to ongoing cancer prevention clinical trials. In addition, two NCI informational sessions describing contract resources for the preclinical agent development and cooperative grants for the Cancer Prevention Clinical Trials Network were also presented.
10.2019 Seoul Consensus on Esophageal Achalasia Guidelines
Hye-Kyung JUNG ; Su Jin HONG ; Oh Young LEE ; John PANDOLFINO ; Hyojin PARK ; Hiroto MIWA ; Uday C GHOSHAL ; Sanjiv MAHADEVA ; Tadayuki OSHIMA ; Minhu CHEN ; Andrew S B CHUA ; Yu Kyung CHO ; Tae Hee LEE ; Yang Won MIN ; Chan Hyuk PARK ; Joong Goo KWON ; Moo In PARK ; Kyoungwon JUNG ; Jong Kyu PARK ; Kee Wook JUNG ; Hyun Chul LIM ; Da Hyun JUNG ; Do Hoon KIM ; Chul-Hyun LIM ; Hee Seok MOON ; Jung Ho PARK ; Suck Chei CHOI ; Hidekazu SUZUKI ; Tanisa PATCHARATRAKUL ; Justin C Y WU ; Kwang Jae LEE ; Shinwa TANAKA ; Kewin T H SIAH ; Kyung Sik PARK ; Sung Eun KIM ;
Journal of Neurogastroenterology and Motility 2020;26(2):180-203
Esophageal achalasia is a primary motility disorder characterized by insufficient lower esophageal sphincter relaxation and loss of esophageal peristalsis. Achalasia is a chronic disease that causes progressive irreversible loss of esophageal motor function. The recent development of high-resolution manometry has facilitated the diagnosis of achalasia, and determining the achalasia subtypes based on high-resolution manometry can be important when deciding on treatment methods. Peroral endoscopic myotomy is less invasive than surgery with comparable efficacy. The present guidelines (the “2019 Seoul Consensus on Esophageal Achalasia Guidelines”) were developed based on evidence-based medicine; the Asian Neurogastroenterology and Motility Association and Korean Society of Neurogastroenterology and Motility served as the operating and development committees, respectively. The development of the guidelines began in June 2018, and a draft consensus based on the Delphi process was achieved in April 2019. The guidelines consist of 18 recommendations: 2 pertaining to the definition and epidemiology of achalasia, 6 pertaining to diagnoses, and 10 pertaining to treatments. The endoscopic treatment section is based on the latest evidence from meta-analyses. Clinicians (including gastroenterologists, upper gastrointestinal tract surgeons, general physicians, nurses, and other hospital workers) and patients could use these guidelines to make an informed decision on the management of achalasia.

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