1.The glutamate-serine-glycine index as a biomarker to monitor the effects of bariatric surgery on non-alcoholic fatty liver disease
Nichole Yue Ting Tan ; Elizabeth Shumbayawonda ; Lionel Tim-Ee Cheng ; Albert Su Chong Low ; Chin Hong Lim ; Alvin Kim Hock Eng ; Weng Hoong Chan ; Phong Ching Lee ; Mei Fang Tay ; Jason Pik Eu Chang ; Yong Mong Bee ; George Boon Bee Goh ; Jianhong Ching ; Kee Voon Chua ; Sharon Hong Yu Han ; Jean-Paul Kovalik ; Hong Chang Tan
Journal of the ASEAN Federation of Endocrine Societies 2024;39(2):54-60
Objective:
Bariatric surgery effectively treats non-alcoholic fatty liver disease (NAFLD). The glutamate-serine-glycine (GSG) index has emerged as a non-invasive diagnostic marker for NAFLD, but its ability to monitor treatment response remains unclear. This study investigates the GSG index's ability to monitor NAFLD's response to bariatric surgery.
Methodology:
Ten NAFLD participants were studied at baseline and 6 months post-bariatric surgery. Blood samples were collected for serum biomarkers and metabolomic profiling. Hepatic steatosis [proton density fat fraction (PDFF)] and fibroinflammation (cT1) were quantified with multiparametric magnetic resonance imaging (mpMRI), and hepatic stiffness with magnetic resonance elastography (MRE). Amino acids and acylcarnitines were measured with mass spectrometry. Statistical analyses included paired Student’s t-test, Wilcoxon-signed rank test, and Pearson’s correlation.
Results:
Eight participants provided complete data. At baseline, all had hepatic steatosis (BMI 39.3 ± 5.6 kg/m2, PDFF ≥ 5%). Post-surgery reductions in PDFF (from 12.4 ± 6.7% to 6.2 ± 2.8%, p = 0.013) and cT1 (from 823.3 ± 85.4ms to 757.5 ± 41.6ms, p = 0.039) were significant, along with the GSG index (from 0.272 ± 0.03 to 0.157 ± 0.05, p = 0.001).
Conclusion
The GSG index can potentially be developed as a marker for monitoring the response of patients with NAFLD to bariatric surgery.
Non-alcoholic Fatty Liver Disease
;
Amino Acids
;
Metabolomics
2.CPG UPDATE - Practical guide in using insulin degludec/insulin aspart: A multidisciplinary approach in Malaysia
Siew Pheng Chan ; Malik Mumtaz ; Jeyakantha Ratnasingam ; Alexander Tong Boon Tan ; Siang Chin Lim ; Azhari Rosman ; Kok Han Chee ; Soo Kun Lim ; Shiong Shiong Yew ; Barakatun-Nisak Mohd Yusof ; Bik Kui Lau ; Saiful Bahari Kassim ; Mafauzy Mohamed
Malaysian Family Physician 2023;18(All Issues):1-12
Insulin degludec/insulin aspart (IDegAsp) co-formulation provides both basal and mealtime glycaemic control in a single injection. The glucose level-lowering efficacy of IDegAsp is reported to be superior or non-inferior to that of the currently available insulin therapies with a lower rate of overall hypoglycaemia and nocturnal hypoglycaemia. An expert panel from Malaysia aims to provide insights into the utilisation of IDegAsp across a broad range of patients with type 2 diabetes mellitus (i.e. treatment-naïve or insulin-naïve patients or patients receiving treatment intensification from basal-only regimens, premixed insulin and basal–bolus insulin therapy). IDegAsp can be initiated as once-daily dosing for the main meal with the largest carbohydrate content with weekly dose adjustments based on patient response. A lower starting dose is recommended for patients with cardiac or renal comorbidities. Dose intensification with IDegAsp may warrant splitting into twice-daily dosing. IDegAsp twice-daily dosing does not need to be split at a 50:50 ratio but should be adjusted to match the carbohydrate content of meals. The treatment of patients choosing to fast during Ramadan should be switched to IDegAsp early before Ramadan, as a longer duration of titration leads to better glycated haemoglobin level reductions. The pre-Ramadan breakfast/lunch insulin dose can be reduced by 30%–50% and taken during sahur, while the pre-Ramadan dinner dose can be taken without any change during iftar. Education on the main meal concept is important, as carbohydrates are present in almost all meals. Patients should not have a misconception of consuming more carbohydrates while taking IDegAsp.
insulin degludec [Supplementary Concept]
;
Insulin Aspart
;
Glucose
;
Hypoglycaemia
;
Diabetes Mellitus, Type 2
3.External validation of the international prediction tool in Korean patients with immunoglobulin A nephropathy
Young Su JOO ; Hyung Woo KIM ; Chung Hee BAEK ; Jung Tak PARK ; Hajeong LEE ; Beom Jin LIM ; Tae-Hyun YOO ; Kyung Chul MOON ; Ho Jun CHIN ; Shin-Wook KANG ; Seung Hyeok HAN
Kidney Research and Clinical Practice 2022;41(5):556-566
The International IgA Nephropathy Prediction Tool has been recently developed to estimate the progression risk of immunoglobulin A nephropathy (IgAN). This study aimed to evaluate the clinical performance of this prediction tool in a large IgAN cohort in Korea. Methods: The study cohort was comprised of 2,064 patients with biopsy-proven IgAN from four medical centers between March 2012 and September 2021. We calculated the predicted risk for each patient. The primary outcome was occurrence of a 50% decline in estimated glomerular filtration rate (eGFR) from the time of biopsy or end-stage kidney disease. The model performance was evaluated for discrimination, calibration, and reclassification. We also constructed and tested an additional model with a new coefficient for the Korean race. Results: During a median follow-up period of 3.8 years (interquartile range, 1.8–6.6 years), 363 patients developed the primary outcome. The two prediction models exhibited good discrimination power, with a C-statistic of 0.81. The two models generally underestimated the risk of the primary outcome, with lesser underestimation for the model with race. The model with race showed better performance in reclassification compared to the model without race (net reclassification index, 0.13). The updated model with the Korean coefficient showed good agreement between predicted risk and observed outcome. Conclusion: In Korean IgAN patients, International IgA Nephropathy Prediction Tool had good discrimination power but underestimated the risk of progression. The updated model with the Korean coefficient showed acceptable calibration and warrants external validation.
4.The effect of diabetes and prediabetes on the prevalence, complications and mortality in nonalcoholic fatty liver disease
Cheng Han NG ; Kai En CHAN ; Yip Han CHIN ; Rebecca Wenling ZENG ; Pei Chen TSAI ; Wen Hui LIM ; Darren Jun Hao TAN ; Chin Meng KHOO ; Lay Hoon GOH ; Zheng Jye LING ; Anand KULKARNI ; Lung-Yi Loey MAK ; Daniel Q HUANG ; Mark CHAN ; Nicholas WS CHEW ; Mohammad Shadab SIDDIQUI ; Arun J. SANYAL ; Mark MUTHIAH
Clinical and Molecular Hepatology 2022;28(3):565-574
Background/Aims:
Nonalcoholic fatty liver disease (NAFLD) is closely associated with diabetes. The cumulative impact of both diseases synergistically increases risk of adverse events. However, present population analysis is predominantly conducted with reference to non-NAFLD individuals and has not yet examined the impact of prediabetes. Hence, we sought to conduct a retrospective analysis on the impact of diabetic status in NAFLD patients, referencing non-diabetic NAFLD individuals.
Methods:
Data from the National Health and Nutrition Examination Survey 1999–2018 was used. Hepatic steatosis was defined with United States Fatty Liver Index (US-FLI) and FLI at a cut-off of 30 and 60 respectively, in absence of substantial alcohol use. A multivariate generalized linear model was used for risk ratios of binary outcomes while survival analysis was conducted with Cox regression and Fine Gray model for competing risk.
Results:
Of 32,234 patients, 28.92% were identified to have NAFLD. 36.04%, 38.32% and 25.63% were non-diabetic, prediabetic and diabetic respectively. Diabetic NAFLD significantly increased risk of cardiovascular disease (CVD), stroke, chronic kidney disease, all-cause and CVD mortality compared to non-diabetic NAFLD. However, prediabetic NAFLD only significantly increased the risk of CVD and did not result in a higher risk of mortality.
Conclusions
Given the increased risk of adverse outcomes, this study highlights the importance of regular diabetes screening in NAFLD and adoption of prompt lifestyle modifications to reduce disease progression. Facing high cardiovascular burden, prediabetic and diabetic NAFLD individuals can benefit from early cardiovascular referrals to reduce risk of CVD events and mortality.
5.Nutrition support practices for critically ill patients with severe acute respiratory syndrome coronavirus-2: A multicentre observational study in Singapore.
Charles Chin Han LEW ; Puay Shi NG ; Kok Wah WONG ; Ser Hon PUAH ; Cassandra Duan Qi LIM ; Geetha KAYAMBU ; Andrew Yunkai LI ; Chee Hong TOH ; Jonathen VENKATACHALAM ; Amartya MUKHOPADHYAY
Annals of the Academy of Medicine, Singapore 2022;51(6):329-340
INTRODUCTION:
To improve the nutritional care and resource allocation of critically ill patients with severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), we described their characteristics, treatment modalities and clinical outcomes, and compared their nutrition interventions against the American Society for Parenteral and Enteral Nutrition (ASPEN) recommendations.
METHODS:
This was a retrospective observational study conducted in 5 tertiary hospitals in Singapore. Characteristics, treatment modalities, clinical outcomes and nutrition interventions of critically ill patients with SARS-CoV-2 who received enteral and parenteral nutrition were collected between January and May 2020.
RESULTS:
Among the 83 critically ill patients with SARS-CoV-2, 22 (28%) were obese, 45 (54%) had hypertension, and 21 (25%) had diabetes. Neuromuscular blockade, prone therapy and dialysis were applied in 70% (58), 47% (39) and 35% (29) of the patients, respectively. Refeeding hypophosphataemia and hospital mortality occurred respectively in 6% (5) and 18% (15) of the critically ill patients with SARS-CoV-2. Late enteral nutrition and cardiovascular comorbidities were associated with higher hospital mortality (adjusted relative risk 9.00, 95% confidence interval [CI] 2.25-35.99; 6.30, 95% CI 1.15-34.40, respectively). Prone therapy was not associated with a higher incidence of high gastric residual volume (≥250mL). The minimum caloric (15kcal/kg) and protein (1.2g/kg) recommendations of ASPEN were achieved in 54% (39) and 0% of the patients, respectively.
CONCLUSION
The high obesity prevalence and frequent usage of neuromuscular blockade, prone therapy, and dialysis had considerable implications for the nutritional care of critically ill patients with SARS-CoV-2. They also did not receive adequate calories and protein. More audits should be conducted to refine nutritional interventions and guidelines for this ever-evolving disease.
COVID-19/therapy*
;
Critical Illness/therapy*
;
Humans
;
Nutritional Support
;
SARS-CoV-2
;
Singapore/epidemiology*
;
United States
6.Prevalence and factors associated with sexual dysfunction among middle-aged women in a multi-ethnic country: A cross sectional study in Malaysia
Yin Yee Tey ; Siew Mooi Ching ; Mari Kannan Maharajan ; Kai Wei Lee ; Zhen Yee Chow ; Pei Wen Chua ; Chin Xuan Tan ; Shi Nie Lim ; Chun Han Tan ; Hui Zhu Thew ; Vasudevan Ramachandran ; Fan Kee Hoo
Malaysian Family Physician 2022;17(2):56-63
Introduction:
This study aimed to determine the prevalence and factors associated with female sexual dysfunction in an outpatient clinic in Malaysia.
Methods:
The study was conducted among female patients aged 50 years and older who attended the outpatient clinic of a public hospital in Malaysia. A self-administered questionnaire was used that was based on the Malay version of the Female Sexual Function Index questionnaire. The predictors of female sexual dysfunction were identified using multivariate logistic regression analysis.
Results:
A total of 263 females were recruited in this study, with a mean age of 60.6 ± 6.7 years. The distribution of the respondents’ ethnicities was mostly Malay (42.2%), followed by Chinese (41.8%) and Indian (16.0%). The prevalence of female sexual dysfunction among participants was 68.8%. The prevalence of the subscales of female sexual dysfunction was as follows: desire (85.2%), satisfaction (74.9%), arousal (71.1%), lubrication (66.9%), pain (61.2%), and orgasm (60.8%). According to multivariate logistic regression, patients of Indian ethnicity had an increased risk of female sexual dysfunction (OR=16.60, 95% CI=2.54–108.63), and a higher frequency of sexual intercourse was correlated with a lower risk of female sexual dysfunction (OR=0.13, 95% CI=0.08–0.24).
Conclusion
Seven-tenths of the middle-aged female patients attending the outpatient clinic suffered from female sexual dysfunction. Indian ethnicity and having a lower frequency of sexual intercourse were predictors of female sexual dysfunction. Future intervention studies are needed to address this problem.
Prevalence
;
Sexual Dysfunction, Physiological
;
Women
;
Ambulatory Care Facilities
;
Middle Aged
7.Complementary and alternative medicine for migraine and tension-type headache among the Malaysians
Mei-Ling Sharon TAI ; Jun Fai YAP ; Han Lim CHIN ; Chong Tin TAN ; Cheng Beh GOH
Neurology Asia 2020;25(2):153-163
Background: The literature on complementary and alternative (CAM) therapies in South East Asia
is limited. The objective of the study was to evaluate the frequencies of CAM therapies in the
Malaysian patients with migraine and tension-type headache (TTH). We also assessed the reasons for
CAM use. Methods: This was a cross-sectional study. The study was conducted in a tertiary hospital
in Malaysia. Consecutive patients presenting with migraine and TTH to the neurology clinic were
recruited. Demographic characteristics were documented. Data on CAM use, including frequency and
the reasons was collected. Results: Six hundred and eighty five patients (365 TTH and 320 migraine)
were recruited. They consisted of 305 (44.5%) Malay, 174 (25.4%) Chinese, 169 (24.7%) Indian
and 37 (5.4%) patients from other ethnic groups. A total of 478 (69.8%) patients, comprising 266
(55.6%) patients with TTH and 212 (44.4%) patients with migraine used CAM therapies. The most
commonly used CAM therapies were medicated oil (355 patients, 51.8%) and massage (246 patients,
35.9%). The most common reasons for CAM use were reduction of pain (47.7 %), stress reduction
(34.9%), and “cooling” effect (27.4%). Thirteen (4.1%) patients with migraine practiced reflexology,
whereas 5 (1.4%) patients with TTH practiced reflexology (p=0.032). Twenty three (7.2%) patients
with migraine took vitamin supplements compared to 13 (3.6%) patients with TTH (p=0.039). On
univariate analysis, CAM use was significantly associated with ethnic groups (p=0.014), gender
(p<0.0001), age (p=0.004), salary (p=0.014), educational level (p=0.003), and headache subtypes
(p= 0.067). On logistic regression, married women were more likely to use CAM (OR=1.864, 95%
CI 1.216-2.858, p=0.004).
Conclusion: A large number of Malaysian headache patients used CAM. The most common reasons
were reduction of pain, stress and “heatiness”. Medicated oil was most commonly used, followed by
massage. Married women were more likely to use CAM, and this was the only determinant in this study.
8.Direct and Indirect Costs of Chronic Obstructive Pulmonary Disease in Korea.
Changhwan KIM ; Younhee KIM ; Dong Wook YANG ; Chin Kook RHEE ; Sung Kyoung KIM ; Yong Il HWANG ; Yong Bum PARK ; Young Mok LEE ; Seonglim JIN ; Jinkyeong PARK ; Cho Rom HAHM ; Chang Han PARK ; So Yeon PARK ; Cheol Kweon JUNG ; Yu Il KIM ; Sang Haak LEE ; Hyoung Kyu YOON ; Jin Hwa LEE ; Seong Yong LIM ; Kwang Ha YOO
Tuberculosis and Respiratory Diseases 2019;82(1):27-34
BACKGROUND: Understanding the burden of disease is important to establish cost-effective treatment strategies and to allocate healthcare resources appropriately. However, little reliable information is available regarding the overall economic burden imposed by chronic obstructive pulmonary disease (COPD) in Korea. METHODS: This study is a multicenter observational research on the COPD burden in Korea. Total COPD costs were comprised of three categories: direct medical, direct non-medical, and indirect costs. For direct medical costs, institutional investigation was performed at 13 medical facilities mainly based on the claims data. For direct non-medical and indirect costs, site-based surveys were administered to the COPD patients during routine visits. Total costs were estimated using the COPD population defined in the recent report. RESULTS: The estimated total costs were approximately 1,245 million US dollar (1,408 billion Korean won). Direct medical costs comprised approximately 20% of the total estimated costs. Of these, formal medical costs held more than 80%. As direct non-medical costs, nursing costs made up the largest percentage (39%) of the total estimated costs. Costs for COPD-related loss of productivity formed four fifths of indirect costs, and accounted for up to 33% of the total costs. CONCLUSION: This study shows for the first time the direct and indirect costs of COPD in Korea. The total costs were enormous, and the costs of nursing and lost productivity comprised approximately 70% of total costs. The results provide insight for an effective allocation of healthcare resources and to inform establishment of strategies to reduce national burden of COPD.
Delivery of Health Care
;
Efficiency
;
Health Care Costs
;
Humans
;
Korea*
;
Nursing
;
Pulmonary Disease, Chronic Obstructive*
9.Paediatric supracondylar humeral fractures: a technique for safe medial pin passage with zero incidence of iatrogenic ulnar nerve injury.
Chin Yee WOO ; Han Loong HO ; Mohammad Bin Zainuddin ASHIK ; Kevin Boon Leong LIM
Singapore medical journal 2018;59(2):94-97
INTRODUCTION:
The cross Kirschner wire (K-wire) configuration in closed reduction and percutaneous pinning of paediatric supracondylar humeral fracture affords superior stability. However, medial pin placement presents a risk of iatrogenic ulnar nerve injury. This study describes, in step-by-step detail, another safe method of percutaneous medial pin insertion.
METHODS:
The technique involved placing the patient's arm in external rotation, with elbow flexed no more than 45° after closed reduction. The surgeon held the K-wire close to its sharp end to pass it percutaneously onto the medial epicondyle, then adjusted his grip toward the blunt end. After fluoroscopy check, the wire driver was engaged and an anteriorly directed force was applied to the distal humerus fragment using the thumb of the surgeon's free hand. The K-wire was inserted at a 45° angle to the longitudinal axis of the humerus shaft. Clinical notes and radiographs of patients who underwent surgery with this technique from 2006 to 2008 were reviewed.
RESULTS:
A total of 125 patients (84 boys, 41 girls) were included, with a mean age of 7.1 (range 2-14) years. Most injuries were left-sided (72.8%, n = 91, vs. right: 27.2%, n = 34). 72 (57.6%) patients had two-pin cross K-wire configuration, while 53 (42.4%) patients had an additional lateral pin inserted. No patient had postoperative ulnar neuropathy. There were no complications of non-union, malunion or infection.
CONCLUSION
This safe method of medial pin placement for surgical stabilisation of paediatric supracondylar humeral fractures is easily learnt and reproducible, and produces excellent results.
Adolescent
;
Bone Nails
;
Child
;
Child, Preschool
;
Female
;
Fluoroscopy
;
Fracture Fixation, Intramedullary
;
methods
;
Humans
;
Humeral Fractures
;
surgery
;
Humerus
;
injuries
;
Iatrogenic Disease
;
Male
;
Pediatrics
;
Radiography
;
Retrospective Studies
;
Ulnar Nerve
10.Weight loss has an additive effect on the proteinuria reduction of angiotensin II receptor blockers in hypertensive patients with chronic kidney disease.
Shin Young AHN ; Dong Ki KIM ; Seung Seok HAN ; Jung Hwan PARK ; Sung Joon SHIN ; Sang Ho LEE ; Bum Soon CHOI ; Chun Soo LIM ; Suhnggwon KIM ; Ho Jun CHIN
Kidney Research and Clinical Practice 2018;37(1):49-58
BACKGROUND: Weight reduction is a lifestyle intervention that has been introduced for prevention and management of chronic kidney disease (CKD). We investigate the additive anti-proteinuric effect of weight reduction on the usage of angiotensin II receptor blockers (ARBs) and its potential mechanisms in hypertensive CKD patients. METHODS: This study is a subanalysis of data from an open-label, randomized, controlled clinical trial. Among the 235 participants, 227 were assigned to subgroups according to changes in body weight. RESULTS: Fifty-eight participants (25.6%) were assigned to group 1 (≥1.5% decrease in body weight after 16 weeks), 32 participants (14.1%) were assigned to group 2 (1.5–0.1% decrease in body weight), and 136 participants (59.9%) were assigned to group 3 (≥ 0.0% increase in body weight). Characteristics at enrollment were not different among the three groups, but mean differences in weight and percent changes in urinary sodium excretion over the period were statistically different (P < 0.001 and P = 0.017). Over the study period, unintentional weight loss independently increased the probability of reduced albuminuria (group 1, relative risk 6.234, 95% confidence interval 1.913–20.315, P = 0.002). Among urinary cytokines, only podocalyxin level decreased significantly in participants who lost weight (P = 0.013). CONCLUSION: We observed that weight loss had an additive effect on the anti-proteinuric effects of ARBs in nondiabetic hypertensive CKD patients, although it was minimal. An additive effect was shown in both obese and non-obese participants, and its possible mechanism is related to reduction of podocyte damage.
Albuminuria
;
Angiotensin II*
;
Angiotensin Receptor Antagonists*
;
Angiotensins*
;
Body Weight
;
Cytokines
;
Humans
;
Hypertension
;
Life Style
;
Podocytes
;
Proteinuria*
;
Receptors, Angiotensin*
;
Renal Insufficiency, Chronic*
;
Sodium
;
Weight Loss*


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