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.Effect of immunosuppressive agents on clinical outcomes in idiopathic membranous nephropathy
Ji-Young CHOI ; Ho Jun CHIN ; Hajeong LEE ; Yena JEON ; Jeong-Hoon LIM ; Hee-Yeon JUNG ; Jang-Hee CHO ; Chan-Duck KIM ; Yong-Lim KIM ; Sun-Hee PARK
Kidney Research and Clinical Practice 2024;43(5):635-647
Few comparative studies on the effects of immunosuppressants in patients with idiopathic membranous nephropathy have been conducted. Methods: Data from 489 patients who received conservative treatment or immunosuppressants were retrospectively analyzed by propensity score matching. Primary outcomes were complete or partial remission (CR or PR) of proteinuria, and secondary outcomes were renal survival and infection. Results: Of the 489 patients, 357 (73.0%) received immunosuppressants. Propensity score matching identified 82 patients from the conservative group and 82 patients in the immunosuppressant group. CR or PR at 12 months was significantly higher in the immunosuppressant group compared with the conservative group for the total population (p = 0.002) and the propensity score-matched population (p = 0.02). The use of immunosuppressants was significantly more effective with respect to achieving a CR or PR at 12 months in patients who were aged <65 years or female, or who had a proteinuria level of ≥4.0 g/g or an estimated glomerular filtration rate of ≥60 mL/min/1.73 m2 (p < 0.05). Renal survival was similar between patients receiving immunosuppressants and conservative treatment in both the total and matched populations. The immunosuppressant group (21.8%) had a significantly higher incidence of infections compared with the conservative group (13.6%) for the total population (p = 0.03), but statistical significance disappeared in the matched population (p > 0.99). Conclusion: The remission rate was significantly higher in the immunosuppressant group than in the conservative group, particularly in the subgroup of patients who were young or female, or those with heavy proteinuria loads or good renal function.
3.Effect of immunosuppressive agents on clinical outcomes in idiopathic membranous nephropathy
Ji-Young CHOI ; Ho Jun CHIN ; Hajeong LEE ; Yena JEON ; Jeong-Hoon LIM ; Hee-Yeon JUNG ; Jang-Hee CHO ; Chan-Duck KIM ; Yong-Lim KIM ; Sun-Hee PARK
Kidney Research and Clinical Practice 2024;43(5):635-647
Few comparative studies on the effects of immunosuppressants in patients with idiopathic membranous nephropathy have been conducted. Methods: Data from 489 patients who received conservative treatment or immunosuppressants were retrospectively analyzed by propensity score matching. Primary outcomes were complete or partial remission (CR or PR) of proteinuria, and secondary outcomes were renal survival and infection. Results: Of the 489 patients, 357 (73.0%) received immunosuppressants. Propensity score matching identified 82 patients from the conservative group and 82 patients in the immunosuppressant group. CR or PR at 12 months was significantly higher in the immunosuppressant group compared with the conservative group for the total population (p = 0.002) and the propensity score-matched population (p = 0.02). The use of immunosuppressants was significantly more effective with respect to achieving a CR or PR at 12 months in patients who were aged <65 years or female, or who had a proteinuria level of ≥4.0 g/g or an estimated glomerular filtration rate of ≥60 mL/min/1.73 m2 (p < 0.05). Renal survival was similar between patients receiving immunosuppressants and conservative treatment in both the total and matched populations. The immunosuppressant group (21.8%) had a significantly higher incidence of infections compared with the conservative group (13.6%) for the total population (p = 0.03), but statistical significance disappeared in the matched population (p > 0.99). Conclusion: The remission rate was significantly higher in the immunosuppressant group than in the conservative group, particularly in the subgroup of patients who were young or female, or those with heavy proteinuria loads or good renal function.
4.Effect of immunosuppressive agents on clinical outcomes in idiopathic membranous nephropathy
Ji-Young CHOI ; Ho Jun CHIN ; Hajeong LEE ; Yena JEON ; Jeong-Hoon LIM ; Hee-Yeon JUNG ; Jang-Hee CHO ; Chan-Duck KIM ; Yong-Lim KIM ; Sun-Hee PARK
Kidney Research and Clinical Practice 2024;43(5):635-647
Few comparative studies on the effects of immunosuppressants in patients with idiopathic membranous nephropathy have been conducted. Methods: Data from 489 patients who received conservative treatment or immunosuppressants were retrospectively analyzed by propensity score matching. Primary outcomes were complete or partial remission (CR or PR) of proteinuria, and secondary outcomes were renal survival and infection. Results: Of the 489 patients, 357 (73.0%) received immunosuppressants. Propensity score matching identified 82 patients from the conservative group and 82 patients in the immunosuppressant group. CR or PR at 12 months was significantly higher in the immunosuppressant group compared with the conservative group for the total population (p = 0.002) and the propensity score-matched population (p = 0.02). The use of immunosuppressants was significantly more effective with respect to achieving a CR or PR at 12 months in patients who were aged <65 years or female, or who had a proteinuria level of ≥4.0 g/g or an estimated glomerular filtration rate of ≥60 mL/min/1.73 m2 (p < 0.05). Renal survival was similar between patients receiving immunosuppressants and conservative treatment in both the total and matched populations. The immunosuppressant group (21.8%) had a significantly higher incidence of infections compared with the conservative group (13.6%) for the total population (p = 0.03), but statistical significance disappeared in the matched population (p > 0.99). Conclusion: The remission rate was significantly higher in the immunosuppressant group than in the conservative group, particularly in the subgroup of patients who were young or female, or those with heavy proteinuria loads or good renal function.
5.Effect of immunosuppressive agents on clinical outcomes in idiopathic membranous nephropathy
Ji-Young CHOI ; Ho Jun CHIN ; Hajeong LEE ; Yena JEON ; Jeong-Hoon LIM ; Hee-Yeon JUNG ; Jang-Hee CHO ; Chan-Duck KIM ; Yong-Lim KIM ; Sun-Hee PARK
Kidney Research and Clinical Practice 2024;43(5):635-647
Few comparative studies on the effects of immunosuppressants in patients with idiopathic membranous nephropathy have been conducted. Methods: Data from 489 patients who received conservative treatment or immunosuppressants were retrospectively analyzed by propensity score matching. Primary outcomes were complete or partial remission (CR or PR) of proteinuria, and secondary outcomes were renal survival and infection. Results: Of the 489 patients, 357 (73.0%) received immunosuppressants. Propensity score matching identified 82 patients from the conservative group and 82 patients in the immunosuppressant group. CR or PR at 12 months was significantly higher in the immunosuppressant group compared with the conservative group for the total population (p = 0.002) and the propensity score-matched population (p = 0.02). The use of immunosuppressants was significantly more effective with respect to achieving a CR or PR at 12 months in patients who were aged <65 years or female, or who had a proteinuria level of ≥4.0 g/g or an estimated glomerular filtration rate of ≥60 mL/min/1.73 m2 (p < 0.05). Renal survival was similar between patients receiving immunosuppressants and conservative treatment in both the total and matched populations. The immunosuppressant group (21.8%) had a significantly higher incidence of infections compared with the conservative group (13.6%) for the total population (p = 0.03), but statistical significance disappeared in the matched population (p > 0.99). Conclusion: The remission rate was significantly higher in the immunosuppressant group than in the conservative group, particularly in the subgroup of patients who were young or female, or those with heavy proteinuria loads or good renal function.
6.Benzoquinone Derivatives with Neuroprotective Activities from Lysimachia vulgaris L.
Chan-Woong PARK ; Jeonghoon LEE ; Pisey PEL ; Seung-Eun LEE ; Young-Won CHIN
Natural Product Sciences 2024;30(1):1-7
The ethyl acetate-soluble fraction of Lysimachia vulgaris , which was found to suppress β-amyloid production in Aβ-treated PC12 cells, was purified using various column chromatographies, resulting in the isolation of four known compounds, 2,4,6-triphenylhex-1-ene (1), pinoresinol (2), monomethyl embelin (3), and 2-hydroxy-5-methoxy-3-tridecyclohexa-2,5-diene-1,4-dione (4). The isolated compounds 3 and 4 downregulated P-tau production in Aβ-treated SH-SY5Y cells and demonstrated the inhibitory activities against NO production in lipopolysaccharide (LPS)-treated BV2 cells.
7.Clinical efficacy and long-term immunogenicity of an early triple dose regimen of SARS-CoV-2 mRNA vaccination in cancer patients.
Matilda Xinwei LEE ; Siyu PENG ; Ainsley Ryan Yan Bin LEE ; Shi Yin WONG ; Ryan Yong Kiat TAY ; Jiaqi LI ; Areeba TARIQ ; Claire Xin Yi GOH ; Ying Kiat TAN ; Benjamin Kye Jyn TAN ; Chong Boon TEO ; Esther CHAN ; Melissa OOI ; Wee Joo CHNG ; Cheng Ean CHEE ; Carol L F HO ; Robert John WALSH ; Maggie WONG ; Yan SU ; Lezhava ALEXANDER ; Sunil Kumar SETHI ; Shaun Shi Yan TAN ; Yiong Huak CHAN ; Kelvin Bryan TAN ; Soo Chin LEE ; Louis Yi Ann CHAI ; Raghav SUNDAR
Annals of the Academy of Medicine, Singapore 2023;52(1):8-16
INTRODUCTION:
Three doses of SARS-CoV-2 mRNA vaccines have been recommended for cancer patients to reduce the risk of severe disease. Anti-neoplastic treatment, such as chemotherapy, may affect long-term vaccine immunogenicity.
METHOD:
Patients with solid or haematological cancer were recruited from 2 hospitals between July 2021 and March 2022. Humoral response was evaluated using GenScript cPASS surrogate virus neutralisation assays. Clinical outcomes were obtained from medical records and national mandatory-reporting databases.
RESULTS:
A total of 273 patients were recruited, with 40 having haematological malignancies and the rest solid tumours. Among the participants, 204 (74.7%) were receiving active cancer therapy, including 98 (35.9%) undergoing systemic chemotherapy and the rest targeted therapy or immunotherapy. All patients were seronegative at baseline. Seroconversion rates after receiving 1, 2 and 3 doses of SARS-CoV-2 mRNA vaccination were 35.2%, 79.4% and 92.4%, respectively. After 3 doses, patients on active treatment for haematological malignancies had lower antibodies (57.3%±46.2) when compared to patients on immunotherapy (94.1%±9.56, P<0.05) and chemotherapy (92.8%±18.1, P<0.05). SARS-CoV-2 infection was reported in 77 (28.2%) patients, of which 18 were severe. No patient receiving a third dose within 90 days of the second dose experienced severe infection.
CONCLUSION
This study demonstrates the benefit of early administration of the third dose among cancer patients.
Humans
;
SARS-CoV-2
;
COVID-19/prevention & control*
;
Treatment Outcome
;
Neoplasms/drug therapy*
;
Hematologic Neoplasms
;
Vaccination
;
RNA, Messenger
;
Antibodies, Viral
;
Immunogenicity, Vaccine
8.Adductor canal block versus intra-articular steroid and lidocaine injection for knee osteoarthritis: a randomized controlled study
Lee Hwee MING ; Chan Soo CHIN ; Chung Tze YANG ; Anwar SUHAIMI
The Korean Journal of Pain 2022;35(2):191-201
Background:
This study aimed to assess the efficacy of the adductor canal block (ACB) in comparison to intra-articular steroid-lidocaine injection (IASLI) to control chronic knee osteoarthritis (KOA) pain.
Methods:
A randomized, single-blinded trial in an outpatient rehabilitation clinic re-cruiting chronic KOA with pain ≥ 6 months over one year. Following randomization,subjects received either a single ACB or IASLI under ultrasound guidance. Numerical rating scale (NRS) scores for pain, and Knee Injury and Osteoarthritis Outcome Scores (KOOS) were recorded at baseline, 1 hour, 1 month, and 3 months postinjection.
Results:
Sixty-six knees were recruited; 2 were lost to follow-up. Age was normally distributed (P = 0.463), with more female subjects in both arms (P = 0.564). NRS scores improved significantly for both arms at 1 hour, with better pain scores for the IASLI arm (P = 0.416) at 1st month and ACB arm at 3rd month (P = 0.077) with larger effect size (Cohen’s d = 1.085). Lower limb function improved significantly in the IASLI arm at 1 month; the ACB subjects showed greater functional improvement at 3 months (Cohen’s d = 0.3, P = 0.346). Quality of life (QoL) improvement mirrored the functional scores whereby the IASLI group fared better at the 1st month (P = 0.071) but at the 3rd month the ACB group scored better (Cohen’s d = 0.08, P = 0.710).
Conclusions
ACB provides longer lasting analgesia which improves function and QoL in chronic KOA patients up to 3 months without any significant side effects.
9.SingHealth Radiology Archives pictorial essay Part 2: gastroenterology, musculoskeletal, and obstetrics and gynaecology cases.
Mark Bangwei TAN ; Kim Ping TAN ; Joey Chan Yiing BEH ; Eugenie Yi Kar CHAN ; Kenneth Fu Wen CHIN ; Zong Yi CHIN ; Wei Ming CHUA ; Aaron Wei-Loong CHONG ; Gary Tianyu GU ; Wenlu HOU ; Anna Chooi Yan LAI ; Rebekah Zhuyi LEE ; Perry Jia Ren LIEW ; May Yi Shan LIM ; Joshua Li Liang LIM ; Zehao TAN ; Eelin TAN ; Grace Siew Lim TAN ; Timothy Shao Ern TAN ; Eu Jin TAN ; Alexander Sheng Ming TAN ; Yet Yen YAN ; Winston Eng Hoe LIM
Singapore medical journal 2021;62(1):8-15
The Singapore Health Services cluster (SingHealth) radiology film archives are a valuable repository of local radiological cases dating back to the 1950s. Some of the cases in the archives are of historical medical interest, i.e. cerebral angiography in the workup of patients with hemiplegia. Other cases are of historical social interest, being conditions seen during earlier stages of Singapore's development, i.e. bound feet. The archives form a unique portal into the development of local radiology as well as the national development of Singapore. A selection from the archives is published in commemoration of the International Day of Radiology in 2020, as well as the 200th anniversary of the Singapore General Hospital in 2021. This pictorial essay comprises gastroenterology, musculoskeletal and obstetrics and gynaecology cases from the archives.
10.Perceptions and psychosocial judgement of patients with acne vulgaris
Ken Chen Loh ; Lee Chin Chan ; Phang Lay Fang
The Medical Journal of Malaysia 2020;75(1):18-23
Introduction: People often judge others and make decisions
based on the physical appearance of an individual. This
study assesses the perception and psychosocial judgment
on patients with acne vulgaris compared to those with clear
skin.
Methods: This survey was conducted in Penang from
October 2016 to June 2017. Respondents were those who
were ≥18 years. The survey was conducted using a
questionnaire which consists of three randomly selected
facial pictures, with at least one acne skin and one clear skin
picture.
Results: A total of 435 respondents were recruited. Two third
of the respondents (76%) suffered or had suffered from
acne. The skin was the first thing noticed by 76.1%
respondents when viewing pictures with acne compared
with 24.8% with clear skin (p <0.05). People with acne were
perceived as being unattractive, sad, lonely, distant,
unhealthy, disheveled and shy as compared to people with
clear skin (p<0.05). People with clear skin were perceived to
be healthier, confident, happy, attractive, successful and
intelligent (p<0.05). Respondents were more willing to
engage socially with people with clear skin rather than those
with acne skin. A significantly higher proportion of
respondents were likely to hire or vote for those with clear
skin as compared to acne skin. People with acne were also
perceived to have a lower educational level and poorer
leadership quality.
Conclusion: The results of this survey showed that there
were significantly negative perception and psychological
judgement toward individuals with acne vulgaris. These
negative impacts may affect social life of the acne sufferers,
their prospect of employment and career opportunities.
Acne
;
perception
;
psychosocial judgement


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