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Prevalence and risk factors for impaired renal function among Asian patients with nonalcoholic fatty liver disease

Hepatobiliary & Pancreatic Diseases International 2024年第3期23卷 241-248页

作者： Chao Sun George Boon-Bee Goh wan-cheng chow Wah-Kheong Chan Grace Lai-Hung Wong Wai-Kay Seto Yi-Hsiang Huang Han-Chieh Lin I-cheng Lee Hye Won Lee Seung Up Kim Vincent Wai-Sun Wong Jian-Gao Fan Center for Fatty Liver Disease Department of GastroenterologyXinhua Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai Key Lab of Pediatric Gastroenterology and NutritionShanghai 200092China Department of Gastroenterology&Hepatology Singapore General HospitalSingaporeSingapore Gastroenterology and Hepatology Unit Department of MedicineFaculty of MedicineUniversity of MalayaKuala LumpurMalaysia Department of Medicine and Therapeutics and State Key Laboratory of Digestive Disease The Chinese University of Hong KongHong KongChina Department of Medicine The University of Hong KongHong KongChina Institute of Clinical Medicine National Yang Ming Chiao Tung University School of MedicineTaipeiTaiwanChina Division of Gastroenterology and Hepatology Taipei Veterans General HospitalTaipeiTaiwanChina Faculty of Medicine National Yang Ming Chiao Tung University School of MedicineTaipeiTaiwanChina Department of Internal Medicine Yonsei University College of MedicineSeoulKorea

Background:Nonalcoholic fatty liver disease(NAFLD)is associated with impaired renal function,and both diseases often occur alongside other metabolic ***,the prevalence and risk factors for impaired renal function in patients with NAFLD remain *** objective of this study was to identify the prevalence and risk factors for renal impairment in NAFLD ***:All adults aged 18-70 years with ultrasound-diagnosed NAFLD and transient elastography examination from eight Asian centers were enrolled in this prospective *** fibrosis and cirrhosis were assessed by FibroScan-aspartate aminotransferase(FAST),Agile 3+and Agile 4 *** renal function and chronic kidney disease(CKD)were defined by an estimated glomerular filtration rate(eGFR)with value of<90 mL/min/1.73 m^(2) and<60 mL/min/1.73 m^(2),respectively,as estimated by the CKD-Epidemiology Collaboration(CKD-EPI)***:Among 529 included NAFLD patients,the prevalence rates of impaired renal function and CKD were 37.4%and 4.9%,*** multivariate analysis,a moderate-high risk of advanced liver fibrosis and cirrhosis according to Agile 3+and Agile 4 scores were independent risk factors for CKD(P<0.05).Furthermore,increased fasting plasma glucose(FPG)and blood pressure were significantly associated with impaired renal function after controlling for the other components of metabolic syndrome(P<0.05).Compared with patients with normoglycemia,those with prediabetes[FPG≥5.6 mmol/L or hemoglobin A1c(HbA1c)≥5.7%]were more likely to have impaired renal function(P<0.05).Conclusions:Agile 3+and Agile 4 are reliable for identifying NAFLD patients with high risk of *** glycemic control in the prediabetic stage might have a potential renoprotective role in these patients.

关键词： Nonalcoholic fatty liver disease Impaired renal function Agile 3+ Agile 4 Metabolic syndrome

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Change in model for end-stage liver disease score at two weeks,as an indicator of mortality or liver transplantation at 60 days in acute-on-chronic liver failure

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Gastroenterology Report 2015年第2期3卷 122-127页

作者： Rajneesh Kumar Thinesh Lee Krishnamoorthy Hiang Keat Tan Hock Foong Lui wan cheng chow Department of Gastroenterology and Hepatology Singapore General HospitalSingapore

Background:Acute-on-chronic liver failure(ACLF)is characterised by a sudden deterioration of underlying chronic liver disease,resulting in increased rates of mortality and liver *** prognostication can benefit optimal allocation of ***:ACLF was defined as per the disease criteria of the Asian Pacific Association for the Study of the *** discharge summaries from between January 2001 and April 2013 were *** primary outcome was mortality or liver transplantation within 60 days from onset of ***‘model for end-stage liver disease’(MELD)score and change in MELD at Weeks 1,2 and 4 were reviewed in order to identify the earliest point for prediction of mortality or liver ***:Clinical data were collected on 53 subjects who fulfilled the inclusion and exclusion *** 60 days from presentation,20 patients(37.7%)died and 4(7.5%)underwent liver *** MELD of-2 after 2 weeks was 75.0%sensitive and 75.9%specific for predicting mortality or liver *** the MELD score did not increase at 2 weeks,predictive chance of survival was 93.8%over the next 60 *** change at 1 week showed poor sensitivity and *** at 4 weeks was too late for ***:Change in MELD score at 2 weeks provides an early opportunity for prognostication in ACLF.A MELD score that does not deteriorate by Week 2 would predict 93.8%chance of survival for the next 60 *** finding warrants further validation in larger cohort studies.

关键词： acute-on-chronic liver failure model for end-stage liver disease(MELD)score liver transplantation mortality

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Real world experience with Pegylated Interferon and ribavirin in Hepatitis C Genotype 1 population with favourable IL28B polymorphism

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Gastroenterology Report 2017年第3期5卷 208-212,I0002页

作者： Victoria Ekstrom Rajneesh Kumar Yi Zhao Mei Ling Yee Cynthia Sung Dorothy Toh Poh Yen Loh Jessica Tan Eng Kiong Teo wan cheng chow Department of Gastroenterology and Hepatology Singapore General HospitalSingapore Department of Clinical Translational Research Singapore General HospitalSingapore Department of Pharmacy Singapore General HospitalSingapore Health Products Regulation Group Health Sciences AuthoritySingapore Emerging Infectious Disease Programme Duke-NUS Medical SchoolSingapore Department of Gastroenterology and Hepatology Changi General HospitalSingapore

Background and aim:Conventional hepatitis C treatment using pegylated interferon(PEG-IFN)and ribavirin is associated with significant side ***28B polymorphism can predict response to treatment,with CC genotype having a better *** gene deficiency protects against clinically significant anaemia induced by *** purpose of this study was to determine IL28B polymorphismand ITPA variation among hepatitis C genotype 1 patients who have undergone therapy with PEG-IFN and ribavirin and their association with sustained viral response(SVR).Methods:All hepatitis C genotype 1 patients who had been treated with PEG-IFN and ribavirin over the past 10 years were identified by available medical records and were contacted by letter of invitation to participate in the *** samples for IL28B and ITPA genotyping were *** records were reviewed for verification of treatment response,development of anaemia and if treatment reduction was required during the ***:A total of 61 patients with hepatitis C genotype 1 were treated with PEG-IFN and ribavirin,of whom 42 agreed to participate in the *** age was 45.6±12.9 years at time of treatment,and 83.3%of patients ***-three(78.6%)had IL28B CC genotype,of whom 25(75.8%)obtained SVR compared with only 3 of 9(33.3%)non C/C genotype patients who achieved SVR(P=0.041).Eleven(26.1%)patients had ITPA AC genotype,and 30(71.4%)had CC *** was no statistically significant difference between ITPA AC and CC genotypes in predicting clinically significant anaemia(45.5%vs 63.3%,P=0.302).Even among patients who developed anaemia,70.8%stillmanaged to achieve *** reduction also had no impact on ***:Hepatitis C genotype 1 patients should be informed of the response rate for treatment with PEG-IFN and ribavirin in a population with favourable IL28B genotype before consideration of newer therapeutic options.

关键词： hepatitis C pegylated interferon IL28B polymorphism sustained viral response

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Perceptions of non-alcoholic fatty liver disease–an Asian community-based study

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Gastroenterology Report 2016年第2期4卷 131-135,I0002页

作者： George B.B.Goh Clarence Kwan Sze Ying Lim Nanda KK Venkatanarasimha Rafidah Abu-Bakar Thinesh L Krishnamoorthy Hang Hock Shim Kiang Hiong Tay wan cheng chow Department of Gastroenterology&Hepatology Singapore General HospitalSingapore Duke-NUS Graduate Medical School Singapore Department of Diagnostic Radiology Singapore General HospitalSingapore

Background and Aims:Non-alcoholic fatty liver disease(NAFLD)is the most common chronic liver disease and is closely related to metabolic syndrome and its risk ***,epidemiological studies have reported NAFLD prevalence rates of 5%to 30%depending on geographical *** epidemiological data suggest a progressively increasing prevalence of metabolic risk factors in Singapore,there are limited data about NAFLD per se in the *** aim to explore the prevalence and perceptions of NAFLD in ***:Attendees at a gastroenterology public forum were enrolled in a cross-sectional observational study evaluating demographic,anthropometric and clinical *** diagnosis of NAFLD was based on sonographic *** syndrome was defined according to International Diabetes Federation *** of NAFLD were explored using a self-administered survey ***:A total of 227 subjects were recruited,with NAFLD being diagnosed in 40%of the *** to those without NAFLD,subjects with NAFLD had higher male preponderance,older age,higher body mass index,waist circumference and more metabolic syndrome(all P0.05).Of note,75.6%of subjects with one or more metabolic risk factors did not think that they were at risk of ***:Our study suggests a significant local prevalence of NAFLD in the community including non-obese *** the tendency to underestimate risk of NAFLD,enhanced public education about NAFLD is warranted to improve understanding.

关键词： non-alcoholic fatty liver disease epidemiology perceptions Singapore

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Coarse-fine joint target parameter estimation method based on AN-RSC in OFDM passive radar

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Journal of Systems Engineering and Electronics 2024年第2期35卷 339-349页

作者： wanG Chujun wan Xianrong YI Jianxin cheng Feng School of Electronic Information Wuhan UniversityWuhan 430072China

In this paper,we study the accuracy of delay-Doppler parameter estimation of targets in a passive radar using orthogonal frequency division multiplexing(OFDM)signal.A coarse-fine joint estimation method is proposed to achieve better estimation accuracy of target parameters without excessive computational ***,the modulation symbol domain(MSD)method is used to roughly estimate the delay and Doppler of ***,to obtain high-precision Doppler estimation,the atomic norm(AN)based on the multiple measurement vectors(MMV)model(MMV-AN)is used to manifest the signal sparsity in the continuous Doppler *** the same time,a reference signal compensation(RSC)method is presented to obtain highprecision delay *** results based on the OFDM signal show that the coarse-fine joint estimation method based on AN-RSC can obtain a more accurate estimation of target parameters compared with other *** addition,the proposed method also possesses computational advantages compared with the joint parameter estimation.

关键词： passive radar orthogonal frequency division multiplexing(OFDM)signal atomic norm(AN) parameter estimation

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A Reliable Iteration Algorithm for One-Bit Compressive Sensing on the Unit Sphere

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Acta Mathematicae Applicatae Sinica 2024年第3期40卷 801-822页

作者： Yan-cheng LU Ning BI An-hua wan School of Mathematics Sun Yat-sen UniversityGuangzhou 510275China

The one-bit compressed sensing problem is of fundamental importance in many areas,such as wireless communication,statistics,and so ***,the optimization of one-bit problem coustrained on the unit sphere lacks an algorithm with rigorous mathematical proof of convergence and *** this paper,an iteration algorithm is established based on difference-of-convex algorithm for the one-bit compressed sensing problem constrained on the unit sphere,with iterating formula■,where C is the convex cone generated by the one-bit measurements andη_(1)>η_(2)>1/*** new algorithm is proved to converge as long as the initial point is on the unit sphere and accords with the measurements,and the convergence to the global minimum point of the l_(1)norm is discussed.

关键词： one-bit compressed sensing difference of convex algorithm iteration algorithm ■1-minimization

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Numerical analysis of coupled sloshing and motion of a cylindrical FPSO in regular waves

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Journal of Hydrodynamics 2024年第3期36卷 457-465页

作者： Wei-wen Zhao Xiao-long Yang De-cheng wan Computational Marine Hydrodynamics Lab(CMHL) School of Naval ArchitectureOcean and Civil EngineeringShanghai Jiao Tong UniversityShanghai200240China Offshore Oil Engineering Co.Ltd. Tianjin300461China

In this paper,the coupled sloshing and motion characteristics of a cylindrical floating production storage offloading(CFPSO)are numerically investigated by means of computational fluid dynamics(CFD)*** simulations are performed using an in-house CFD solver naoe-FOAM-SJTU which is developed based on *** active wave generating-absorbing boundary condition(GABC)is utilized for wave generation and *** stabilized k-omega SST turbulence model are used to avoid excessive eddy viscosity near the free *** with and without partially filled liquid tanks in regular waves with different wave periods are simulated and vertical planar motions such as surge,heave and pitch response amplitude operators(RAOs)are *** due to liquid sloshing and wave loads are extracted and *** free surface motions inside liquid tanks in one wave period presented to explain the motion characteristics.

关键词： Coupled analysis liquid sloshing wave motion cylindrical floating production storage offloading(CFPSO)

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Flow characteristics and bubble statistics during the fragmentation process of the ingested main cavity in plunging breaking waves

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Journal of Hydrodynamics 2024年第3期36卷 546-555页

作者： Wen-bin Zhang Wei-wen Zhao De-cheng wan Computational Marine Hydrodynamics Lab(CMHL) School of Naval ArchitectureOcean and Civil EngineeringShanghai Jiao Tong UniversityShanghai200240China

Plunging breaking waves play an important role in the exchange of heat,momentum,and mass between the atmosphere and *** this paper,a series of direct numerical simulations is conducted to investigate the fragmentation process of the ingested main cavity in plunging breaking *** two-phase Navier-Stokes equations are solved using the finite-volume method based on adaptive refinement *** free surface is captured using a geometrical volume of fluid *** 2-D,3-D simulations are *** flow fields at different stages of wave breaking are presented and quantitative analysis for bubbles is *** 2-D instantaneous vorticity field and local velocity field are visualized to discuss the general flow characteristics during the fragmentation *** a 2-D parametric study is conducted to investigate the differences in the flow characteristics during the fragmentation process under different wave parameters including initial wave steepness(ε),Bond number(Bo),and Reynolds number(Re).3-D vortex structures are shown to further investigate the mechanisms behind the differences in the flow *** bubble size distributions under two different initial wave steepness are also discussed with their relationship to the fragmentation process of the ingested main *** research offers a significant understanding of the distinct procedures and fundamental dynamics involved in wave breaking,enhancing our comprehension of this intricate event.

关键词： Plunging breaking waves multiphase flow bubble statistics

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Numerical analysis of the correlation between fluid dynamic modes and hydrodynamic noise in flows around a three-dimensional circular cylinder

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Journal of Hydrodynamics 2024年第1期36卷 119-129页

作者： Jia-jia Qin Ming-xin Zou Yuan Zhuang De-cheng wan Computational Marine Hydrodynamics Lab(CMHL) School of Naval ArchitectureOcean and Civil EngineeringShanghai Jiao Tong UniversityShanghai200240China Wuhan Second Ship Design and Research Institute Wuhan430205China

The flow around a circular cylinder for Re=1000 is characterized by flow separation and Karman vortex *** typical flow features can be captured to study the correlation between fluid fields and sound *** this paper,the three-dimensional circular cylinder is taken as the research object,and the probes of surface fluctuating pressure and far field sound pressure are arranged every 10°.The directional diagram and the coherence of fluctuating pressure and sound pressure are *** relationship between the flow mode and hydrodynamic noise is studied by using dynamic mode decomposition(DMD).The characteristics of the dipole and quadrupole sound source term of a long span cylinder are *** results show that at the angles between 30°–120°and 190°–350°,the fluctuating pressure contributes more to the generation of dipole *** quadrupole sound source shows three-dimensional effects,which is more obvious in a cylinder with large spanwise length.

关键词： Pressure coherence dynamic mode decomposition flow-sound correlation circular cylinder

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Numerical simulation of liquid sloshing in a spherical tank by MPS method

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Journal of Hydrodynamics 2024年第2期36卷 232-240页

作者： Cong-yi Huang Ji-fei wang Wei-wen Zhao De-cheng wan Computational Marine Hydrodynamic Lab(CMHL) School of Naval ArchitectureOcean and Civil EngineeringShanghai Jiao Tong UniversityShanghai200240China Shanghai Aerospace System Engineering Institute Shanghai201109China

This paper investigates the sloshing phenomena in a spherical liquid tank using the moving particle semi-implicit(MPS)method,a crucial study in fluid *** from previous research focused on rectangular or LNG tanks,this work explores the unique motion patterns inherent to spherical *** accuracy of our in-house MPS solver MLParticle-SJTU is validated against experimental data and finite volume method(FVM).And the MPS method reveals a closer alignment with experimental outcomes,which suggests that MPS method is particularly effective for modeling complex,non-linear fluid *** the fluid’s response to excitation at its natural frequency is simulated,showcasing vigorous sloshing and rotational *** analyses of the fluid motion are conducted by drawing streamline diagrams,velocity vector diagrams,and vorticity *** fluid’s motion response is explored using both time-domain and frequency-domain curves of the fluid centroid,as well as the sloshing force.

关键词： Moving particle semi-implicit(MPS)method spherical tank liquid sloshing model experiment

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