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Molecular mechanism of nanomaterials induced liver injury:A review

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World Journal of Hepatology 2024年第4期16卷 566-600页

作者： Sanjib Kumar Das Koushik Sen Biswatosh Ghosh Nabanita Ghosh Krishnendu Sinha Parames C sil Department of Zoology Jhargram Raj CollegeJhargram 721507India Department of Zoology Bidhannagar CollegeKolkata 700064India Department of Zoology Maulana Azad CollegeKolkata 700013India Department of Molecular Medicine Bose InstituteCalcutta 700054India

The unique physicochemical properties inherent to nanoscale materials have unveiled numerous potential applications,spanning beyond the pharmaceutical and medical sectors into various consumer industries like food and ***,humans encounter nanomaterials through diverse exposure routes,giving rise to potential health *** among these materials are silica and specific metallic nanoparticles,extensively utilized in consumer products,which have garnered substantial attention due to their propensity to accumulate and induce adverse effects in the *** review paper aims to provide an exhaustive examination of the molecular mechanisms underpinning nanomaterial-induced hepatotoxicity,drawing insights from both in vitro and in vivo ***,the most frequently observed manifestations of toxicity following the exposure of cells or animal models to various nanomaterials involve the initiation of oxidative stress and ***,we delve into the existing in vitro models employed for evaluating the hepatotoxic effects of nanomaterials,emphasizing the persistent endeavors to advance and bolster the reliability of these models for nanotoxicology research.

关键词： Nanoparticles Hepatotoxicity Oxidative stress Inflammation Autophagy

Knowledge and Attitudes of Oncology Nurses Toward Clinical Trials-A Secondary Publication

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Journal of Clinical and Nursing Research 2024年第1期8卷 209-221页

作者： Jin sil Bae Jeong Hye Kim Department of Nursing Asan Medical CenterSeoulSouth Korea Department of Clinical Nursing University of UlsanSeoul 05505Korea

Purpose:The purpose of this study was to identify the knowledge and attitudes of oncology nurses toward clinical trials and to provide evidence for the development of clinical trial education programs for oncology ***:The study was conducted on 142 nurses who had more than six months of nursing experience working with cancer patients at a tertiary hospital in Seoul,Korea.A structured questionnaire was used to measure the knowledge and attitudes of oncology nurses toward clinical ***:The participants scored an average of 15.03±3.52 out of 19 in terms of knowledge about clinical *** terms of attitudes toward clinical trials,the participants scored an average of 5.91±1.37 out of *** was a significant positive correlation between the knowledge and attitudes of the participants toward clinical trials(r=0.23,P=0.007).Conclusion:This study found that there was a relationship between the knowledge and attitudes of oncology nurses toward clinical *** improve the competency of oncology nurses and provide high-quality care to patients participating in clinical trials,more systematic and sustainable education is required.

关键词： Clinical trial Nurses Knowledge Attitude Neoplasms

Structure and Activity of Strigolactones： New Plant Hormones with a Rich Future

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Molecular Plant 2013年第1期6卷 38-62页

作者： Binne Zwanenburg Tomás Pospísil Radboud University Nijmegen Institute for Molecules and Materials Cluster of Organic Chemistry Heyendaalseweg 135 6525AJ Nijmegen TheNetherlands Palacky University Faculty of Science Centre of the Region Haná for Biotechnological and Agricultural Research Department of Growth Regulators~lechtiteICJ 11 CZ-783 71 Olomouc Czech Republic

Strigolactones （SLs） constitute a new class of plant hormones which are active as germination stimulants for seeds of parasitic weeds of Striga, Orobanche, and Pelipanchi spp, in hyphal branching of arbuscular mycorrhizal （AM） fungi and as inhibitors of shoot branching. In this review, the focus is on molecular features of these SLs. The occurrence of SLs in root exudates of host plants is described. The naming protocol for SL according to the International Union of Pure and Applied Chemistry （IUPAC） rules and the ＇at a glance＇ method is explained. The total synthesis of some natural SLs is described with details for all eight stereoisomers of strigol. The problems encountered with assign- ing the correct structure of natural SLs are analyzed for orobanchol, alectrol, and solanacol. The structure-activity relationship of SLs as germination stimulants leads to the identification of the bioactiphore of SLs. Together with a tentative mechanism for the mode of action, a model has been derived that can be used to design and prepare active SL analogs. This working model has been used for the preparation of a series of new SL analogs such as Nijmegen-1, and analogs derived from simple ketones, keto enols, and saccharine. The serendipitous finding of SL mimics which are derived from the D-ring in SLs （appropriately substituted butenolides） is reported. For SL mimics, a mode of action is proposed as well. Recent new results support this proposal. The stability of SLs and SL analogs towards hydrolysis is described and some details of the mechanism of hydrolysis are discussed as well. The attempted isolation of the protein receptor for germination and the current status concerning the biosynthesis of natural SLs are briefly discussed. Some non-SLs as germinating agents are mentioned. The structure-activity relationship for SLs in hyphal branching of AM fungi and in repression of shoot branching is also analyzed. For each of the principle functions, a working model for the desi

关键词： germination stimulant hyphal branching AM fungi inhibition shoot branching plant hormones strigolac-tones structure-activity relationship.

Does weather affect the growth rate of COVID-19,a study to comprehend transmission dynamics on human health

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Journal of Safety Science and Resilience 2020年第1期1卷 3-11页

作者： Arjun sil Vanapalli Naveen Kumar Dept of Civil Engineering NIT SilcharAssam 788010India

The undefendable outbreak of novel coronavirus(SARS-COV-2)lead to a global health emergency due to its higher transmission rate and longer symptomatic duration,created a health surge in a short *** Nov 2019 the outbreak in China,the virus is spreading exponentially *** current study focuses on the relationship between environmental parameters and the growth rate of *** statistical analysis suggests that the temperature changes retarded the growth rate and found that-6.28℃ and+14.51℃ temperature is the favorable range for COVID-19 ***-Richter’s relationship is used to estimate the mean daily rate of exceedance of confirmed cases concerning the change in ***,temperature is the most influential parameter that reduces the growth at the rate of 13-17 cases/day with a 1℃ rise in temperature.

关键词： Covid-19 Pendemic Temperature Health risk

Infliximab vs adalimumab:Points to consider when selecting antitumor necrosis factor agents in pediatric patients with Crohn’s disease

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World Journal of Gastroenterology 2023年第18期29卷 2784-2797页

作者： Eun sil Kim Ben Kang Department of Pediatrics Kangbuk Samsung HospitalSungkyunkwan University School of MedicineSeoul 03181South Korea Department of Pediatrics School of MedicineKyungpook National UniversityDaegu 41944South Korea

Biologic agents with various mechanisms against Crohn’s disease(CD)have been released and are widely used in clinical ***,two anti-tumor necrosis factor(TNF)agents,infliximab(IFX)and adalimumab(ADL),are the only biologic agents approved by the Food and Drug Administration for pediatric CD ***,in pediatric CD,the choice of biologic agents should be made more carefully to achieve the therapeutic *** are currently no headto-head trials of biologic agents in pediatric or adult *** is a lack of accumulated data for pediatric CD,which requires the extrapolation of adult data for the positioning of biologics in pediatric *** a pharmacokinetic point of view,IFX is more advantageous than ADL when the inflammatory burden is high,and ADL is expected to be advantageous over IFX in sustaining remission in the maintenance ***,we reviewed the safety profile,immunogenicity,preference,and compliance between IFX and ADL and provide practical insights into the choice of anti-TNF therapy in pediatric *** evaluation of clinical indications and disease behavior is essential when prescribing anti-TNF *** addition,factors such as the efficacy of induction and maintenance of remission,safety profile,immunogenicity,patient preference,and compliance play an important role in evaluating and selecting treatment options.

关键词： Anti-tumor necrosis factor Infliximab Adalimumab Crohn’s disease Pediatric

Muskingum equation based downstream sediment flow simulation models for a river system

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International Journal of Sediment Research 2016年第2期31卷 139-148页

作者： Briti Sundar sil Parthasarathi Choudhury Department of Civil Engineering Tezpur University Department of Civil Engineering NIT Silchar

Applications of sediment transport and water flow characteristics based sediment transport simulation models for a river system are presented in this *** existing water-sediment model and a new sediment-water model are used to formulate the simulation models representing water and sediment movement in a river *** sediment-water model parameters account for water flow characteristics embodying sediment transport properties of a *** models are revised formulations of the multiple water inflows model describing water movement through a river system as given by the Muskingum *** models are applied to a river system in Mississippi River basin to estimate downstream sediment concentration,sediment discharge,and water *** system and the river section parameters are estimated using a revised and the original multiple water inflows models by applying the genetic *** models estimate downstream sediment transport rates on the basis of upstream sediment/water flow rates to a *** performance is evaluated by using standard statistical criteria;downstream water discharge resulting from the original multiple water inflows model using the estimated river system parameters indicate that the revised models satisfactorily describe water movement through a river *** obtained in the study demonstrate the applicability of the sediment transport and water flow characteristics-based simulation models in predicting downstream sediment transport and water flow rates in a river system.

关键词： Multiple rivers Sediment transport Modeling Estimation Muskingum model

Joint Entity and Event Extraction with Generative Adversarial Imitation Learning

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Data Intelligence 2019年第2期1卷 99-120页

作者： Tongtao Zhang Heng Ji Avirup sil Computer Science Department Rensselaer Polytechnic InstituteTroyNew York 12180-3590USA IBM Research AI ArmonkNew York 10504-1722USA

We propose a new framework for entity and event extraction based on generative adversarial imitation learning-an inverse reinforcement learning method using a generative adversarial network(GAN).We assume that instances and labels yield to various extents of difficulty and the gains and penalties(rewards)are expected to be *** utilize discriminators to estimate proper rewards according to the difference between the labels committed by the ground-truth(expert)and the extractor(agent).Our experiments demonstrate that the proposed framework outperforms state-of-the-art methods.

关键词： Information extraction Event extraction Imitation learning Generative adversarial network

大隐静脉曲张射频闭合术后再通的影响因素分析

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中国基层医药 2024年第3期31卷 441-443页

作者：何思略万恒黄水传符方勇林智琪刘灏南方医科大学南方医院白云分院血管与介入科广州510080 南方医科大学南方医院血管与介入科广州510080

目的探讨大隐静脉曲张射频治疗术后再通的影响因素。方法采用病例对照研究,对南方医科大学南方医院白云分院和南方医科大学南方医院2021年10月至2022年2月射频闭合治疗的大隐静脉曲张患者40例的临床资料进行分析,依据术后康复情况分为... 详细信息

目的探讨大隐静脉曲张射频治疗术后再通的影响因素。方法采用病例对照研究,对南方医科大学南方医院白云分院和南方医科大学南方医院2021年10月至2022年2月射频闭合治疗的大隐静脉曲张患者40例的临床资料进行分析,依据术后康复情况分为对照组、观察组各20例。对照组为术后康复良好患者,观察组为术后再通患者。分析术后再通的影响因素。结果两组CEAP[临床(clinical)、病因(etiologic)、解剖(anatomic)、病理生理学(pathophysiologic)]分级、反流级别、职业因素、合并穿支静脉差异均无统计学意义(均P>0.05),对照组大隐静脉内径为(4.21±1.90)mm,小于观察组的(5.43±1.39)mm,差异有统计学意义(t=2.31,P=0.027)。结论静脉内径是影响大隐静脉曲张射频闭合术后再通的单一因素。

关键词：静脉曲张隐静脉导管消融术血管外科手术康复职业

Roles of somatic A-type K^+ channels in the synaptic plasticity of hippocampal neurons

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Neuroscience Bulletin 2014年第3期30卷 505-514页

作者： Yoon-sil Yang Kyeong-Deok Kim Su-Yong Eun Sung-Cherl Jung Department of Physiology School of Medicine Jeju National University Institute of Medical Science Jeju National University

In the mammalian brain, information encoding and storage have been explained by revealing the cellular and molecular mechanisms of synaptic plasticity at various levels in the central nervous system, including the hippocampus and the cerebral cortices. The modulatory mechanisms of synaptic excitability that are correlated with neuronal tasks are fundamental factors for synaptic plasticity, and they are dependent on intracellular Ca2＋-mediated signaling. In the present review, the A-type K＋（IA） channel, one of the voltage-dependent cation channels, is considered as a key player in the modulation of Ca2＋ influx through synaptic NMDA receptors and their correlated signaling pathways. The cellular functions of IA channels indicate that they possibly play as integral parts of synaptic and somatic complexes, completing the initiation and stabilization of memory.

关键词： A-type K+ channels intrinsic excitability synaptic plasticity NMDA receptors Kv4.2