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Appraising the causal effects of circulating micronutrients on liver cirrhosis:Evidence from large-scale Mendelian randomization analysis

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Portal Hypertension & Cirrhosis 2024年第3期3卷 160-170页

作者： Junlong Lin Jialin Chen Zhichao Li Baifeng Qian yunpeng hua Department of Liver Surgery The First Affiliated HospitalSun Yat-sen UniversityGuangzhouGuangdongChina

Aims:Observational research has identified links between micronutrient levels and chronic liver ***,the lack of randomized controlled experiments has impeded the ability to establish a cause-and-effect connection regarding micronutrients and cirrhosis of the *** Mendelian randomization(MR)analysis aimed to examine the causal impact of micronutrients on liver ***:We selected genetic instrumental variables related to 12 micronutrients from genome-wide studies on individuals of European descent,covering an array of over 9,851,867 single nucleotide polymorphisms and 460,351 *** from patients with cirrhosis in the FinnGen database(https://***/fi)were used.A two-sample MR approach was employed to establish genetically causal *** analyses used random effects and inverse variance weighted(IVW)methods,with additional sensitivity analyses for ***–Egger intercept analysis and Cochran's Q test assessed horizontal pleiotropy and ***,multivariable Mendelian randomization(MVMR)was conducted to address potential confounding ***:IVW and weighted median methods showed that most micronutrients included were not significantly associated with a genetic susceptibility to liver ***,MR analysis demonstrated a significant association between circulating vitamin D levels and a reduced risk of liver cirrhosis(odds ratio IVW=0.53,p<0.010).TheMR–Egger intercept showed no evidence of horizontal pleiotropy(p=0.178),whereas Cochran's Q test found no heterogeneity(p=0.799).Furthermore,MVMR analysis confirmed vitamin D was identified as a factor that independently mitigates the risk of liver ***:This research constitutes the most comprehensive MR investigation in this field,providing evidence supporting a protective link between circulating vitamin D levels and cirrhosis *** suggests that maintaining sufficient vitamin D could be a cost-effecti

关键词： liver cirrhosis Mendelian randomization micronutrient vitamin D

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基于年龄-时期-队列模型的中国物质使用障碍疾病负担及预测研究

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药物流行病学杂志 2024年第7期33卷 760-769页

作者：毕慧马丹华许桂丽华云鹏邢亮中国人民解放军东部战区空军医院药剂科南京210002

目的分析1990—2019年中国物质使用障碍(SUD)的发病和疾病负担情况,评估不同年龄、时期和出生队列对SUD疾病负担的影响,并预测2020—2034年SUD的疾病负担情况,为SUD的预防提供参考。方法利用2019全球疾病负担研究数据库,通过发病率、过... 详细信息

目的分析1990—2019年中国物质使用障碍(SUD)的发病和疾病负担情况,评估不同年龄、时期和出生队列对SUD疾病负担的影响,并预测2020—2034年SUD的疾病负担情况,为SUD的预防提供参考。方法利用2019全球疾病负担研究数据库,通过发病率、过早死亡损失寿命年(YLLs)、伤残损失寿命年(YLDs)和伤残调整寿命年(DALYs)等指标描述疾病负担,采用Joinpoint回归模型分析SUD标化发病率、标化DALYs率的变化趋势,基于年龄-时期-队列模型探讨SUD发病率及疾病负担的年龄、时期和队列效应。采用灰色预测模型GM(1,1)对SUD的发病率及疾病负担趋势进行拟合,同时预测2020—2034年SUD的发病率及疾病负担。结果1990—2019年中国苯丙胺类药物[平均年度变化百分比(AAPC)=-0.9%]、可卡因(AAPC=-0.5%)SUD标化发病率呈下降的趋势(P0.05)。这4种SUD造成的DALYs率均呈现逐年降低的趋势(AAPC_(苯丙胺类药物)=-2.2%、AAPC_(可卡因)=-1.5%、AAPC_(大麻)=-1.0%、AAPC_(阿片类药物)=-1.0%,P<0.001)。年龄-时期-队列效应结果显示,苯丙胺类药物、可卡因、大麻、阿片类药物SUD的发病峰值均在25~30岁组。大麻SUD造成的DALYs率随着年龄的增长而逐渐增加,而苯丙胺类药物、可卡因类、阿片类药物SUD的DALYs率分别在25~29岁、30~34岁、35~39岁组达到峰值。时期结果显示,苯丙胺类药物、可卡因、大麻SUD的发病风险呈现先降低后上升的趋势,阿片类药物SUD发病风险呈先升高后降低然后又升高的趋势。出生队列效应结果显示,苯丙胺类药物、可卡因、阿片类药物SUD的发病风险除个别出生队列出现小幅度波动外,整体上呈现逐渐降低的趋势;苯丙胺类药物、可卡因、阿片类药物SUD造成的DALYs率风险整体上呈现逐渐降低的趋势,而大麻SUD造成的DALYs率风险呈现逐年升高的趋势。预测结果显示2020—2034年苯丙胺类药物、可卡因、阿片类药物SUD的发病率呈下降趋势,大麻SUD的发病率呈波动上升的趋势。归因于苯丙胺类药物、可卡因、大麻及阿片类药物SUD的DALYs呈逐年下降的趋势。结论中国SUD疾病负担未来呈逐年下降的趋势,其发病率和疾病负担均不同程度地受年龄效应、时期效应及队列效应的影响,早期预防和有效干预是控制SUD的关键措施。

关键词：药物滥用物质使用障碍疾病负担趋势分析年龄-时期-队列模型

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The preoperative neutrophil-to-lymphocyte ratio predicts the outcomes of patients with hepatocellular carcinoma and cirrhosis after hepatectomy

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Oncology and Translational Medicine 2015年第6期1卷 249-255页

作者： yunpeng hua Fei Ji Shunjun Fu Shunli Shen Shaoqiang Li Lijian Liang Baogan Peng Department of Hepatic Surgery The First Affiliated Hospital of Sun Yat-sen University Department of Organ Transplant Center The First Affiliated Hospital of Sun Yat-sen University

Objective The aim of the study was to investigate the prognostic value of the preoperative peripheral neutrophil-to-lymphocyte ratio （NLR） in patients with hepatocellular cancer （HCC） and cirrhosis after hepa- tectomy. Methods This retrospective study included 321 patients with HCC who underwent resection. The NLR was calculated using the neutrophil and lymphocyte counts in routine preoperative blood tests. Receiver operating characteristic curve analysis was performed to select the most appropriate NLR cutoff value. The preoperative NLR, patient demographics, and clinical and pathological data, including disease-free survival （DFS） and overall survival （OS）, were analyzed. Results The NLR was correlated with alpha-fetoprotein levels （X2 = 5.876, P = 0.015）, tumor size （X2 = 32.046, P 〈 0.001）, portal vein tumor thrombus （PVTT; x2 = 4.930, P = 0.026）, tumor encapsulation （x2 = 7.243, P = 0.007）, and recurrence （x2 = 7.717, P = 0.005）. Multivariate analyses illustrated that the number of tumors, PVTT, tumor size, and the NLR were independent factors for predicting DFS and OS. in patients with HCC and cirrhosis, but not among those without cirrhosis, a larger NLR predicted poorer postoperative DFS and OS （both P 〈 0.001）. Conclusion As a simple, effective independent predictor for patients with HCC, the preoperative NLR plays an important role in accurately predicting the postoperative outcomes of patients with HCC and cir- rhosis, but not those of patients without cirrhosis.

关键词： hepatocellular cancer (HCC) neutrophil-to-lymphocyte ratio (NLR) pathnology prognosis

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On the Pathwise Uniqueness of Solutions of One-dimensional Reflected Stochastic Differential Equations with Jumps

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Acta Mathematicae Applicatae Sinica 2024年第1期40卷 149-163页

作者： hua Zhang School of Statistics and Data Science&Key Laboratory of Data Science in Finance and Economics Jiangxi University of Finance and EconomicsNanchang330013China

In this paper, we are concerned with the problem of the pathwise uniqueness of one-dimensional reflected stochastic differential equations with jumps under the assumption of non-Lipschitz continuous coefficients whose... 详细信息

关键词： reflected diffusion processes with jumps pathwise uniqueness local time Meyer It?'s formula

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Goal-Oriented Control Systems(GOCS):From HOW to WHAT

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IEEE/CAA Journal of Automatica Sinica 2024年第4期11卷 816-819页

作者： Wen-hua Chen the Department of Aeronautical and Automotive Engineering Loughborough UniversityLeicestershireLE113TUU.K.

Brief:New control theory is required to underpin safe design and deployment of future highly automated systems to deal with uncertain environments and complicated tasks,enabled by AI and other advanced ***-Oriented Control Systems offer potential to transform the control system design from currently instructing a control system how to perform a task to specifying what is to be achieved.

关键词： automated instru system

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Cardiovascular computed tomography in cardiovascular disease:An overview of its applications from diagnosis to prediction

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Journal of Geriatric Cardiology 2024年第5期21卷 550-576页

作者： Zhong-hua SUN Discipline of Medical Radiation Science Curtin Medical SchoolCurtin UniversityPerthAustralia Curtin Health Innovation Research Institute(CHIRI) Curtin UniversityPerth 6012Australia

Cardiovascular computed tomography angiography(CTA)is a widely used imaging modality in the diagnosis of cardiovascular *** in CT imaging technology have further advanced its applications from high diagnostic value to minimising radiation exposure to *** addition to the standard application of assessing vascular lumen changes,CTA-derived applications including 3D printed personalised models,3D visualisations such as virtual endoscopy,virtual reality,augmented reality and mixed reality,as well as CT-derived hemodynamic flow analysis and fractional flow reserve(FFRCT)greatly enhance the diagnostic performance of CTA in cardiovascular *** widespread application of artificial intelligence in medicine also significantly contributes to the clinical value of CTA in cardiovascular *** value of CTA has extended from the initial diagnosis to identification of vulnerable lesions,and prediction of disease extent,hence improving patient care and *** this review article,as an active researcher in cardiovascular imaging for more than 20 years,I will provide an overview of cardiovascular CTA in cardiovascular *** is expected that this review will provide readers with an update of CTA applications,from the initial lumen assessment to recent developments utilising latest novel imaging and visualisation *** will serve as a useful resource for researchers and clinicians to judiciously use the cardiovascular CT in clinical practice.

关键词： diagnosis cardiovascular prediction

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Reliability of a Multicomponent Stress-strength Model Based on a Bivariate Kumaraswamy Distribution with Censored Data

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Acta Mathematicae Applicatae Sinica 2024年第2期40卷 478-507页

作者： Cong-hua CHENG School of Mathematics and Statistics Zhaoqing UniversityZhaoqing 526061China

In this paper,we consider a system which has k statistically independent and identically distributed strength components and each component is constructed by a pair of statistically dependent elements with doubly type-II censored *** elements(X1,Y1),(X2,Y2),…,(Xk,Yk)follow a bivariate Kumaraswamy distribution and each element is exposed to a common random stress T which follows a Kumaraswamy *** system is regarded as operating only if at least s out of k(1≤s≤k)strength variables exceed the random *** multicomponent reliability of the system is given by Rs,k=P(at least s of the(Z1,…,Zk)exceed T)where Zi=min(Xi,Yi),i=1,…,*** Bayes estimates of Rs,k have been developed by using the Markov Chain Monte Carlo methods due to the lack of explicit *** uniformly minimum variance unbiased and exact Bayes estimates of Rs,k are obtained analytically when the common second shape parameter is *** asymptotic confidence interval and the highest probability density credible interval are constructed for Rs,*** reliability estimators are compared by using the estimated risks through Monte Carlo simulations.

关键词： stress-strength model bivariate Kumaraswamy distribution multicomponent reliability doubly Type-II censored scheme interval estimation

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Nuclear charge radius predictions by kernel ridge regression with odd-even effects

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Nuclear Science and Techniques 2024年第2期35卷 94-102页

作者： Lu Tang Zhen-hua Zhang Mathematics and Physics Department North China Electric Power UniversityBeijing 102206China Hebei Key Laboratory of Physics and Energy Technology North China Electric Power UniversityBaoding 071000China

The extended kernel ridge regression(EKRR)method with odd-even effects was adopted to improve the description of the nuclear charge radius using five commonly used nuclear *** are:(i)the isospin-dependent A^(1∕3) formula,(ii)relativistic continuum Hartree-Bogoliubov(RCHB)theory,(iii)Hartree-Fock-Bogoliubov(HFB)model HFB25,(iv)the Weizsacker-Skyrme(WS)model WS*,and(v)HFB25**** the last two models,the charge radii were calculated using a five-parameter formula with the nuclear shell corrections and deformations obtained from the WS and HFB25 models,*** each model,the resultant root-mean-square deviation for the 1014 nuclei with proton number Z≥8 can be significantly reduced to 0.009-0.013 fm after considering the modification with the EKRR *** best among them was the RCHB model,with a root-mean-square deviation of 0.0092 *** extrapolation abilities of the KRR and EKRR methods for the neutron-rich region were examined,and it was found that after considering the odd-even effects,the extrapolation power was improved compared with that of the original KRR *** strong odd-even staggering of nuclear charge radii of Ca and Cu isotopes and the abrupt kinks across the neutron N=126 and 82 shell closures were also calculated and could be reproduced quite well by calculations using the EKRR method.

关键词： Nuclear charge radius Machine learning Kernel ridge regression method

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Impacts of external forcing and internal variability on the North Atlantic multidecadal variations since 1950

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Science China Earth Sciences 2024年第8期67卷 2699-2701页

作者： Wenjian hua Aiguo DAI Key Laboratory of Meteorological Disaster Ministry of Education/Collaborative Innovation Center on Forecast and Evaluation of Meteorological DisastersNanjing University of Information Science and TechnologyNanjing 210044China Department of Atmospheric and Environmental Sciences University at AlbanyState University of New YorkAlbany 12222USA

The physical formation mechanisms of the Atlantic Multidecadal Variability(AMV)in the context of global warming have been a key research topic(Vecchi et al.,2017).The conventional view is that the AMV is mainly driven by internal dynamics within the climate system,especially in the Atlantic Ocean(Zhang et al.,2019).However,some studies suggest that decadal to multidecadal variations in North Atlantic sea surface temperature(SST)since around 1950 are related to anthropogenic and natural aerosol emissions(Otter?et al.,2010;Booth et al.,2012;hua et al.,2019).

关键词： Atlantic decadal forcing

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A novel weld-pool-length monitoring method based on pixel analysis in plasma arc additive manufacturing

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Advances in Manufacturing 2024年第2期12卷 335-348页

作者： Bao-Ri Zhang Yong-hua Shi Bionic Robot Research Department Ji Hua LaboratoryFoshan528200GuangdongPeople’s Republic of China Guangdong Provincial Engineering Research Center for Special Welding Technology and Equipment School of Mechanical and Automotive EngineeringSouth China University of TechnologyGuangzhou510640People’s Republic of China

The real-time monitoring of the weld pool during deposition is important for automatic control in plasma arc additive *** obtain a high deposition accuracy,it is essential to maintain a stable weld pool *** this study,a novel passive visual method is proposed to measure the weld pool *** the proposed method,the image quality was improved by designing a special visual system that employed an endoscope and a *** also includes pixel brightness-based and gradient-based algorithms that can adaptively detect feature points at the boundary when the weld pool geometry *** algorithm can also be applied to materials with different solidification *** was performed to measure the real weld pool length in world coordinates,and outlier rejection was performed to increase the accuracy of the ***,tests were carried out on the intersection component,and the results showed that the proposed method performed well in tracking the changing weld pool length and was applicable to the real-time monitoring of different types of materials.

关键词： Plasma arc additive manufacturing(PAAM) Weld pool geometry Gradient analysis Real-time detection

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