1.Singapore consensus statements on the management of obstructive sleep apnoea.
Leong Chai LEOW ; Chuen Peng LEE ; Sridhar VENKATESWARAN ; Michael Teik Chung LIM ; Oon Hoe TEOH ; Ruth CHANG ; Yam Cheng CHEE ; Khai Beng CHONG ; Ai Ping CHUA ; Joshua GOOLEY ; Hong Juan HAN ; Nur Izzianie KAMARUDDIN ; See Meng KHOO ; Lynn Huiting KOH ; Shaun Ray Han LOH ; Kok Weng LYE ; Mark IGNATIUS ; Yingjuan MOK ; Jing Hao NG ; Thun How ONG ; Chu Qin PHUA ; Rui Ya SOH ; Pei Rong SONG ; Adeline TAN ; Alvin TAN ; Terry TAN ; Jenny TANG ; David TAY ; Jade TAY ; Song Tar TOH ; Serene WONG ; Chiang Yin WONG ; Mimi YOW
Annals of the Academy of Medicine, Singapore 2025;54(10):627-643
INTRODUCTION:
Obstructive sleep apnoea (OSA) is common in Singapore, with moderate to severe OSA affecting around 30% of residents. These consensus statements aim to provide scientifically grounded recommendations for the management of OSA, standar-dise the management of OSA in Singapore and promote multidisciplinary collaboration.
METHOD:
An expert panel, which was convened in 2024, identified several areas of OSA management that require guidance. The expert panel reviewed the current literature and developed consensus statements, which were later independently voted on using a 3-point Likert scale (agree, neutral or disagree). Consensus (total ratings of agree and neutral) was set a priori at ≥80% agreement. Any statement not reaching consensus was excluded.
RESULTS:
The final consensus included 49 statements that provide guidance on the screening, diagnosis and management of adults with OSA. Additionally, 23 statements on the screening, diagnosis and management of paediatric OSA achieved consensus. These 72 consensus statements considered not only the latest clinical evidence but also the benefits and harms, resource implications, feasibility, acceptability and equity impact of the recommendations.
CONCLUSION
The statements presented in this paper aim to guide clinicians based on the most updated evidence and collective expert opinion from sleep specialists in Singapore. These recommendations should augment clinical judgement rather than replace it. Management decisions should be individualised, taking into account the patient's clinical characteristics, as well as patient and caregiver concerns and preferences.
Humans
;
Sleep Apnea, Obstructive/diagnosis*
;
Singapore
;
Consensus
;
Adult
2.Analysis of noise reduction measures in a noise workshop handover control room.
Rui Feng DONG ; Qing Dong WU ; Dong Liang CHAI ; Xiang Ming XUE ; Jing Ming ZHAN
Chinese Journal of Industrial Hygiene and Occupational Diseases 2023;41(5):379-382
Objective: To explore the sound insulation, sound absorption and other noise reduction transformation methods in a noise workshop handover control room. Methods: In December 2021, through the occupational health investigation and on-site testing of the handover control room of a noise workshop, the causes of excessive noise were analyzed, and the transformation design scheme to reduce noise was proposed and the effect was analyzed. Results: Before the transformation, the peak frequency band noise intensity of the noise workshop handover control room was 112.8 dB (A), and the peak frequency was 1000 Hz. After noise reduction, the theoretical calculated control value was 61.0 dB (A), and the measured noise intensity was 59.8 dB (A) . Conclusion: The noise intensity of the handover control room is reduced after noise reduction, which is in line with the contact limit requirements of the control room in GBZ 1-2010 "Hygienic Standards for the Design of Industrial Enterprises", and has reference significance for noise control engineering.
Noise/prevention & control*
;
Occupational Health
;
Industry
;
Reference Standards
;
Hygiene
;
Noise, Occupational/prevention & control*
3.Construction and optimization of a novel plasma membrane model for membrane affinity assay based on polydiacetylene vesicles
Chai-chai NIE ; Rui-ting DONG ; Yu-tong WU ; Jing-bo WU ; Sheng ZHANG ; Feng ZHENG ; Ya DING
Acta Pharmaceutica Sinica 2023;58(8):2503-2511
Most drugs need to interact with cell membrane to reach the biological target, so that membrane affinity assay is an important early screening step in drug discovery. However, at present, the traditional oil-water distribution method is still used, a new, simple and accurate method for membrane affinity assay is urgently needed. In this study, according to the colorimetric principle, a new assay model based on polydiacetylene vesicles was optimized through a series of experiments including different concentrations of vesicle solution, temperature, or pH reaction environment. On this basis, tetracaine hydrochloride, 2-methylimidazole and histamine were used as model drugs to measure the membrane affinity constants and verify the between-batch precision of the optimized assay model (relative standard deviation less than 5%). In addition, polydiacetylene vesicles were stable for up to 180 days, demonstrating the potential application of the assay model. This strategy is simple, stable, reliable, with high reproducibility, low cost and easy to promote, which provided a new tool and a new direction for the high-throughput assay of membrane affinity.
4.Mechanism of Shengmai Injection on Anti-Sepsis and Protective Activities of Intestinal Mucosal Barrier in Mice.
Juan LU ; Yue YU ; Xiao-Jing WANG ; Rui-Ping CHAI ; Xin-Kai LYU ; Ming-Hui DENG ; Mei-Geng HU ; Yun QI ; Xi CHEN
Chinese journal of integrative medicine 2022;28(9):817-822
OBJECTIVE:
To study the mechanism of Shengmai Injection (SMI, ) on anti-sepsis and protective activities of intestinal mucosal barrier.
METHODS:
The contents of 11 active components of SMI including ginsenoside Rb1, Rb2, Rb3, Rd, Re, Rf, Rg1, Rg2, ophioposide D, schisandrol A and schisantherin A were determined using ultra-performance liquid chromatography. Fifty mice were randomly divided into the blank, the model, the low-, medium- and high-dose SMI groups (0.375, 0.75, 1.5 mL/kg, respectively) by random number table, 10 mice in each group. In SMI group, SMI was administrated to mice daily via tail vein injection for 3 consecutive days, while the mice in the blank and model groups were given 0.1 mL of normal saline. One hour after the last SMI administration, except the blank group, the mice in other groups were intraperitoneally injected with lipopolysaccharide (LPS) saline solution (2 mL/kg) at a dosage of 5 mL/kg for development of endotoxemia mice model. The mice in the blank group were given the same volume of normal saline. Inflammatory factors including interferon-γ (INF-γ), tumor necrosis factor-α (TNF-α), interleukin (IL)-2 and IL-10 were measured by flow cytometry. Myosin light-chain kinase (MLCK), nuclear factor κB (NF-κB) levels, and change of Occludin proteins in jejunum samples were analyzed by Western blot.
RESULTS:
The decreasing trends of INF-γ, TNF-α and IL-2 were found in serum of SMI treatment groups. In SMI-treated mice, the content of Occludin increased and MLCK protein decreased compared with the model group (P<0.05 or P<0.01). The content of cellular and nuclear NF-κB did not change significantly (P>0.05).
CONCLUSION
SMI may exert its anti-sepsis activity mainly through NF-κB-pro-inflammatory factor-MLCK-TJ cascade.
Animals
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Drug Combinations
;
Drugs, Chinese Herbal
;
Mice
;
NF-kappa B/metabolism*
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Occludin
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Saline Solution
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Sepsis/drug therapy*
;
Tumor Necrosis Factor-alpha/metabolism*
5.Association between the awareness of Nutrition Facts Panel and prepackaged food purchase behavior among residents.
Li Hong YE ; Jing Wen ZHANG ; Rui Jie YAN ; Lin XIANG ; Yi Luan HU ; Jia CUI ; Yu Xiang TANG ; Xin CHAI ; Chao GAO ; Li XIAO ; Yang JIANG ; Juan ZHANG ; Yuexin YANG
Chinese Journal of Preventive Medicine 2022;56(10):1478-1483
Objective: To explore the association between the cognition of Nutrition Facts Panel and prepackaged food purchase behavior among residents in six provinces in China. Methods: Using a multi-stage sampling method, 3 002 adults aged 18-70 were selected from the western region (Sichuan), eastern region (Guangdong, Jiangsu, Beijing), central region (Henan), and northeastern region (Heilongjiang) of China from July 2020 to March 2021. Socio-demographic characteristics of participants and their cognition of Nutrition Facts Panel and prepackaged food purchase behavior were collected through questionnaire. A multivariate binary logistic regression model was used to analyze the association between cognition of Nutrition Facts Panel and prepackaged food purchase behavior. Results: The age of 3 002 subjects was (42.3±13.4) years, among which 63.8% (1 914) were female, 66.7% knew the Nutrition Facts Panel, 49.8% would read it when purchasing, 30.7% could understand it, and 56.6% (1 699) bought prepackaged food more than once a week. The results of multivariate analysis showed that after adjusting for relevant confounding factors, compared with the participants knowing but not reading the Nutrition Facts Panel, the group knowing and reading was more likely to buy 11 types of prepackaged food at least once a week (all P<0.05). Compared with the participants reading but not understanding the Nutrition Facts Panel, the group reading and understanding was less likely to buy 11 types of prepackaged food at least once a week (all P<0.05). Conclusion: There was a correlation between cognition of Nutrition Facts Panel and prepackaged food purchase behavior among residents.
Adult
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Female
;
Humans
;
Male
;
Food Labeling/methods*
;
Food
;
Nutritional Status
;
Surveys and Questionnaires
;
China
;
Health Knowledge, Attitudes, Practice
6.Compare and Contrast of the Diagnosis of Cerebral Malformation on 2D Ultrasonography, 3D Ultrasonography against MRI
Rui TONG ; Li-Juan LU ; Zhan-Xiong QING ; Jun-Hua LEI ; Xian HUANG ; Juan CHAI ; Jing CAO
Journal of Kunming Medical University 2018;39(8):113-118
Objective to compare and contrast the diagnosis results on 2D and 3D Ultrasonogrpahy against MRI. Method A 2D Ultrasonography was applied during a conventional prenatal sonography checking with a 3D Sonography assessment subsequently conducted to follow up on 49 fetus suspected of brain malformation.Furthermore, a MRI scan was taken within 24 hours after the 3D Sonography checking in our hospital as a final test. Data collections from all three assessments were completed, and an analysis of the comparisons of these three methods were done. Results Among these 49 fetus with confirmed or suspected brain malformation, there were two cases of misdiagnoses of Dandy-Walker Malformation assessed by 2D sonography, with a misdiagnosis rate of 40%, (P < 0.05) indicating a statistically significant result; misdiagnosis rate of Fetal Ventriculomegaly and Isolated Broadening Posterior Fossa were calculated as 26.7% and 33.3% respectively (P <0.05), a statistically significant result. Overall, there were two cases with Cerebellum Malformation, from in which one case was identified by MRI, and the other one was misdiagnosed, with a misdiagnosis rate of 50.0%.In total, there were 2 cases of Holoprosencephaly, in which one was identified by Prenatal MRI, and the other was misdiagnosed (P < 0.05), a statistically significant result. Conclusions All three assessments of 2D ultrasonography, 3D ultrasonography and MRI have their own advantages and disadvantages. In short, 2D Sonography is suggested to be applied for screening out cases with brain malformation, together with 3D Sonography as a complementary assessment. MRI can also be an effective and significant complement for sonography in completing and readdressing the final ultrasonic results.
7.Analysis of clinical research in the subject of tigecycline
He-Kun MEI ; Jin WANG ; Dong CHAI ; Rui WANG ; Yun CAI ; Bei-Bei LIANG ; Ming-Jing TANG ; Ming-Yu LUO
The Chinese Journal of Clinical Pharmacology 2018;34(10):1236-1239
Objective To analyze the clinical application and latest progress of tigecycline.Methods All literatures were collected from CNKI,PubMed and EMbase from the inception to October 2017.Bibliometric analysis was performed by Endnote X7 to analyze the published years and research hotspots.Results A total of 749 papers were analyzed,176 in Chinese and 573 in other languages.The United States ranked first (246 papers,taking up 32.8%) in publishing articles among all the countries.At present,the research mainly focuses on overdose,over adaptation,adverse effects and combination therapy.Conclusion Overdose and over adaptation use of tigecycline have a certain rationality.
8.Quality of life and coexisting depression and anxiety of female nurses in general hospitals
Shuxia GENG ; Jing LIU ; Rui AN ; Shumeng LV ; Meng CHAI
Chinese Journal of Behavioral Medicine and Brain Science 2013;(2):160-163
Objective To investigate the relationship between coexisting depression and anxiety (CDA)and quality of life of female nurses in general hospitals.Methods Seven hundred and ninety-three female nurses completed Zung' s Self-rating Depression Scale (SDS),Zung' s Self-rating Anxiety Scale (SAS) and the World Health Organization' s Quality of Life Questionnaire-Brief Version (WHOQOL-BREF).According to the cut-off scores of SDS and SAS,all subjects were divided into 4 groups (non-depression and non-anxiety,pure depression,pure anxiety,and CDA).Group differences in SDS,SAS and WHOQOL-BREF scores were compared.Results Of these 4 groups,CDA group had the highest SDS and SAS scores (P < 0.001) (SDS scores:(34.3 ±5.4),(47.1 ±4.0),(39.4 ± 2.4) and (49.7 ±4.2)) and the lowest WHOQOL-BREF scores (P≤0.033)(WHOQOL-BREF physical domain scores:(15.6 ± 2.0),(13.8 ± 2.0),(13.6 ± 1.6) and (12.1 ± 2.0)).The corresponding stratification analysis (controlling for confounding factors) showed consistent results.Conclusion CDA nurses have the most severe depressive and anxious symptoms and the worst quality of life,and thus are the key target population of mental health service.
9.Adiponectin up-regulates the expression of T-cadherin in cardiomyocytes injured by hypoxia/reoxygenation.
Min WANG ; Ying-Ru CHAI ; Chuan-Shi XIAO ; Xu-Jing ZHAO ; Na WEI ; Rui BAI ; Yun-Fei BIAN
Acta Physiologica Sinica 2012;64(3):296-302
The aim of the present study was to investigate the effects of adiponectin (APN) on the expression of T-cadherin in cultured Sprague-Dawley (SD) rat cardiomyocytes injured by hypoxia/reoxygenation (H/R). Primary myocardial cells from neonatal rats were obtained by enzymatic digestion. The cells were divided into control group, H/R group and H/R+APN (3, 10, 20 and 30 μg/mL) groups. The H/R group was incubated in anoxic environment (anoxic solution saturated with high concentration N2) for 3 h, and then in the reoxygenation environment (the reoxygenation solution saturated with pure oxygen) for 1 h. The H/R+APN group was pretreated with different concentrations of APN for 24 h prior to the initiation of H/R. The content of lactate dehydrogenase (LDH) was measured by chemistry chromatometry. Cellular apoptosis was analyzed by flow cytometry and terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL). The expression of T-cadherin was detected by RT-PCR and Western blotting. The results showed that, compared with control group, the apoptotic rate and release of LDH were significantly increased in the H/R group, whereas the expressions of T-cad mRNA and protein were decreased. Pretreating with APN significantly and dose-dependently decreased apoptotic rate and LDH release, and up-regulated T-cad mRNA and protein level in rat neonatal cardiomyocytes under H/R conditions. These results suggest that APN may protect cardiomyocytes against H/R-induced injury by up-regulating H/R-decreased T-cad expression.
Adiponectin
;
pharmacology
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Animals
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Apoptosis
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Cadherins
;
metabolism
;
Cell Hypoxia
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L-Lactate Dehydrogenase
;
metabolism
;
Myocytes, Cardiac
;
drug effects
;
metabolism
;
pathology
;
Oxygen
;
adverse effects
;
Rats
;
Rats, Sprague-Dawley
;
Up-Regulation
10.Differentiating Pancreatic Ductal Adenocarcinoma from Pancreatic Serous Cystadenoma, Mucinous Cystadenoma, and a Pseudocyst with Detailed Analysis of Cystic Features on CT Scans: a Preliminary Study.
Peijie LV ; Radfan MAHYOUB ; Xiaozhu LIN ; Kemin CHEN ; Weimin CHAI ; Jing XIE
Korean Journal of Radiology 2011;12(2):187-195
OBJECTIVE: To determine whether or not detailed cystic feature analysis on CT scans can assist in the differential diagnosis of pancreatic ductal adenocarcinoma (PDAC) from serous cystadenoma (SCN), mucinous cystadenoma (MCN), and a pseudocyst. MATERIALS AND METHODS: This study received Institutional Review Board approval and informed patient consent was waived. Electronic radiology and pathology databases were searched to identify patients with PDAC (n = 19), SCN (n = 26), MCN (n = 20) and a pseudocyst (n = 23) who underwent pancreatic CT imaging. The number, size, location, and contents of cysts, and the contour of the lesions were reviewed, in addition to the wall thickness, enhancement patterns, and other signs of pancreatic and peripancreatic involvement. Diagnosis was based on lesion resection (n = 82) or on a combination of cytological findings, biochemical markers, and tumor markers (n = 6). Fisher's exact test was used to analyze the results. RESULTS: A combination of the CT findings including irregular contour, multiple cysts, mural nodes, and localized thickening, had a relatively high sensitivity (74%) and specificity (75%) for differentiating PDAC from SCN, MCN, and pseudocysts (p < 0.05). Other CT findings such as location, greatest dimension, or the presence of calcification were not significantly different. CONCLUSION: The CT findings for PDAC are non-specific, but perhaps helpful for differentiation. PDAC should be included in the general differential diagnosis of pancreatic cystic neoplasms.
Adenocarcinoma/pathology/*radiography
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Adolescent
;
Adult
;
Aged
;
Cystadenocarcinoma, Serous/pathology/*radiography
;
Cystadenoma, Mucinous/pathology/*radiography
;
Diagnosis, Differential
;
Female
;
Humans
;
Immunohistochemistry
;
Male
;
Middle Aged
;
Pancreatic Neoplasms/pathology/*radiography
;
Retrospective Studies
;
Sensitivity and Specificity
;
*Tomography, X-Ray Computed
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Tumor Markers, Biological/analysis

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