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The relationship between intermittent limit cycles and postural instability associated with Parkinson’s disease

Journal of Sport and Health Science 2016年第1期5卷 14-24页

作者： James R.Chagdes jessica e.huber Meredith Saletta Meghan Darling-White Arvind Raman Shirley Rietdyk Howard N.Zelaznik Jeffrey M.Haddad Department of Mechanical and Manufacturing engineering Miami University Oxford OH 45056 USA Department of Speech Language and Hearing Sciences Purdue University west Lafayette IN 47907 USA Department of communication Sciences and Disorders University of Iowa Iowa City IA 52242 USA Department of Speech Language and Hearing Sciences University of Arizona Tucson AZ 85721 USA School of Mechanical engineering Purdue University West Lafayette IN 47907 USA Department of Health and Kinesiology Purdue University West Lafayette IN 47907 USA

Background:Many disease-specific factors such as muscular weakness,increased muscle stiffness,varying postural strategies,and changes in postural reflexes have been shown to lead to postural instability and fall risk in people with Parkinson's disease(PD).Recently,analytical techniques,inspired by the dynamical systems perspective on movement control and coordination,have been used to examine the mechanisms underlying the dynamics of postural declines and the emergence of postural instabilities in people with ***:A wavelet-based technique was used to identify limit cycle oscillations(LCOs) in the anterior–posterior(AP) postural sway of people with mild PD(n = 10) compared to age-matched controls(n = 10).Participants stood on a foam and on a rigid surface while completing a dual task(speaking).Results:There was no significant difference in the root mean square of center of pressure between *** out of 10 participants with PD demonstrated LCOs on the foam surface,while none in the control group demonstrated *** inverted pendulum model of bipedal stance was used to demonstrate that LCOs occur due to disease-specific changes associated with PD:time-delay and neuromuscular feedback ***:Overall,the LCO analysis and mathematical model appear to capture the subtle postural instabilities associated with mild *** addition,these findings provide insights into the mechanisms that lead to the emergence of unstable posture in patients with PD.

关键词： Balance Limit cycle Parkinson's disease Posture Wavelets

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electrobiocorrosion by microbes without outer-surface cytochromes

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mLife 2024年第1期3卷 110-118页

作者： Dawn e.Holmes Trevor L.Woodard jessica A.Smith Florin Musat Derek R.Lovley Department of Microbiology University of Massachusetts AmherstAmherstMassachusettsUSA Department of Physical and Biological Science Western New England UniversitySpringfieldMassachusettsUSA Department of Biomolecular Sciences Central Connecticut State UniversityNew BritainConnecticutUSA Department of Biology Section for MicrobiologyAarhus UniversityAarhusDenmark Department of Molecular Biology and Biotechnology Facuity of Biology and GeologyBabes-Bolyai UniversityCluj-NapocaRomania

Anaerobic microbial corrosion of iron-containing metals causes extensive economic *** microbes are capable of direct metal-to-microbe electron transfer(electrobiocorrosion),but the prevalence of electrobiocorrosion among diverse methanogens and acetogens is poorly understood because of a lack of tools for their genetic *** studies have suggested that respiration with 316L stainless steel as the electron donor is indicative of electrobiocorrosion,because,unlike pure Fe^(0),316L stainless steel does not abiotically generate H_(2) as an intermediary electron ***,we report that all of the methanogens(Methanosarcina vacuolata,Methanothrix soehngenii,and Methanobacterium strain IM1)and acetogens(Sporomusa ovata and Clostridium ljungdahli)evaluated respired with pure Fe^(0)as the electron donor,but only ***,***,and *** were capable of stainless steel *** electrobiocorrosive methanogens re-quired acetate as an additional energy source in order to produce methane from stainless *** of *** and *** demonstrated how acetogens can provide acetate to methanogens during *** only was Meth-anobacterium strain IM1 not capable of electrobiocorrosion,but it also did not accept electrons from Geobacter metal-lireducens,an effective electron-donating partner for direct interspecies electron transfer to all methanogens that can directly accept electrons from Fe^(0).The finding that ***,***,and *** are capable of electrobiocorrosion,despite a lack of the outer-surface c-type cytochromes previously found to be important in other electrobiocorrosive microbes,demonstrates that there are multiple microbial strategies for making electrical contact with Fe^(0).

关键词： acetogen corrosion Fe^(0) methanogen stainless steel

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APIR:Aggregating Universal Proteomics Database Search Algorithms for Peptide Identification with FDR Control

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Genomics, Proteomics & Bioinformatics 2024年第2期22卷 171-187页

作者： Yiling elaine Chen Xinzhou Ge Kyla Woyshner MeiLu McDermott Antigoni Manousopoulou Scott B.Ficarro Jarrod A.Marto Kexin Li Leo David Wang Jingyi jessica Li Department of Statistics and Data Science University of CaliforniaLos AngelesCA 90095USA Department of Immuno-Oncology Beckman Research InstituteCity of Hope National Medical CenterDuarteCA 91010USA Department of Quantitative and Computational Biology University of Southern CaliforniaLos AngelesCA 90089USA Department of Cancer Biology and Blais Proteomics Center Dana-Farber Cancer InstituteDepartment of PathologyBrigham and Women’s Hospital and Harvard Medical SchoolBostonMA 02215USA Department of Pediatrics City of Hope National Medical CenterDuarteCA 91010USA Bioinformatics Interdepartmental Program University of CaliforniaLos AngelesCA 90095USA Department of Human Genetics University of CaliforniaLos AngelesCA 90095USA Department of Computational Medicine University of CaliforniaLos AngelesCA 90095USA Department of Biostatistics University of CaliforniaLos AngelesCA 90095USA

Advances in mass spectrometry(MS)have enabled high-throughput analysis of proteomes in biological *** state-of-the-art MS data analysis relies on database search algorithms to quantify proteins by identifying peptide–spectrum matches(PSMs),which convert mass spectra to peptide *** database search algorithms use distinct search strategies and thus may identify unique ***,no existing approaches can aggregate all user-specified database search algorithms with a guaranteed increase in the number of identified peptides and a control on the false discovery rate(FDR).To fill in this gap,we proposed a statistical framework,Aggregation of Peptide Identification Results(APIR),that is universally compatible with all database search ***,under an FDR threshold,APIR is guaranteed to identify at least as many,if not more,peptides as individual database search algorithms *** of APIR on a complex proteomics standard dataset showed that APIR outpowers individual database search algorithms and empirically controls the *** data studies showed that APIR can identify disease-related proteins and post-translational modifications missed by some individual database search *** APIR framework is easily extendable to aggregating discoveries made by multiple algorithms in other high-throughput biomedical data analysis,e.g.,differential gene expression analysis on RNA sequencing *** APIR R package is available at https://***/yiling0210/APIR.

关键词： Shotgun proteomics Peptide–spectrum match Peptide identification Aggregation of lists FDR control

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HIIT对高脂喂养Apoe敲除鼠骨骼肌氧化应激的影响及肌肉因子BAIBA的保护作用

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北京体育大学学报 2024年第4期47卷 144-156页

作者：王杨文洁 jessica Lavier 花卫成 Gregoire P Millet 张缨北京体育大学运动与体质健康教育部重点实验室北京100084 北京体育大学运动人体科学学院北京100084 瑞士洛桑大学体育科学系瑞士洛桑1015

目的:探讨高强度间歇训练(high-intensity interval training,HIIT)对高脂喂养的载脂蛋白e(Apoe)敲除(Apo^(e-/-))小鼠骨骼肌氧化应激的改善作用以及肌肉因子β-氨基异丁酸(β-aminoisobutyic acid,BAIBA)在其中的可能调节机制。方法:9周龄健康雄性C57BL/6J小鼠和Apo^(e-/-)小鼠分别喂食标准和高脂饲料,其中C57BL/6J小鼠为基线对照组(WT,n=6),Apo^(e-/-)小鼠经高脂饲料喂养12周后随机分为Apo^(e-/-)安静组(Apo^(e-/-),n=10)和Apo^(e-/-)高强度间歇训练组(Apo^(e-/-)HIIT,n=10),Apo^(e-/-)HIIT组进行6周HIIT,WT和Apo^(e-/-)组在笼中自由活动。最后一次运动后48 h取小鼠两侧腿部腓肠肌进行氧化损伤、抗氧化及BAIBA生成相关指标的检测。随后采用L-BAIBA预孵育C2C12细胞,后用过氧化氢(H_(2)O_(2))诱导氧化应激,结合干预条件随机分为Control、H_(2)O_(2)和L-BAIBA+H_(2)O_(2)组。相差显微镜观察细胞形态,并检测细胞ROS水平和Nrf2介导的抗氧化通路的相关指标。结果:1)与WT组相比,Apo^(e-/-)组小鼠骨骼肌氧化损伤相关的4-HNe修饰蛋白、蛋白质羰基含量和ROS水平显著升高,而抗氧化相关的p-Nrf2蛋白表达和GSH含量显著降低;而与Apo^(e-/-)组相比,Apo^(e-/-)HIIT组小鼠骨骼肌4-HNe修饰蛋白和蛋白质羰基含量明显降低,p-Nrf2蛋白表达和GSH含量明显升高。2)Apo^(e-/-)HIIT组小鼠骨骼肌生成BAIBA的相关酶基因Acads和Hadha mRNA的表达水平显著高于Apo^(e-/-)组。3)与Control组相比,H_(2)O_(2)干预后C2C12细胞明显皱缩,活细胞数量降低,ROS水平显著增加;而与H_(2)O_(2)组相比,L-BAIBA+H_(2)O_(2)组活细胞数量增加,形态较饱满,ROS水平明显降低。4)与Control组相比,H_(2)O_(2)显著降低了细胞Nrf2、p-Nrf2及其介导的抗氧化酶SOD1、NQO1和CAT蛋白以及合成GSH的相关酶基因Gss、Gsr和Gclm mRNA的表达水平,并显著降低了细胞GSH含量;而L-BAIBA+H_(2)O_(2)组较H_(2)O_(2)组则显著增加了p-Nrf2、SOD1和NQO1蛋白以及Gss、Gsr、Gclc和Gclm mRNA的表达量,同时细胞GSH含量也显著增加。结论:6周HIIT降低了高脂喂养的Apo^(e-/-)小鼠骨骼肌的氧化损伤,其中肌肉因子BAIBA对Nrf2介导的抗氧化信号的激活可能起着一定的作用。

关键词： HIIT BAIBA 骨骼肌氧化应激 C2C12细胞

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Rifaximin on epigenetics and autophagy in animal model of hepatocellular carcinoma secondary to metabolic-dysfunction associated steatotic liver disease

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World Journal of Hepatology 2024年第1期16卷 75-90页

作者： Matheus Truccolo Michalczuk Larisse Longo Melina Belén Keingeski Bruno de Souza Basso Gabriel Tayguara Silveira Guerreiro jessica T Ferrari Joséeduardo Vargas Cláudia P Oliveira Carolina Uribe-Cruz Carlos Thadeu Schmidt Cerski eduardo Filippi-Chiela Mário ReisÁlvares-da-Silva Division of Gastroenterology Hospital de Clínicas de Porto AlegrePorto Alegre 90035-903Rio Grande do SulBrazil Graduate Program in Gastroenterology and Hepatology Universidade Federal do Rio Grande do SulPorto Alegre 90035-003Rio Grande do SulBrazil experimental Laboratory of Hepatology and Gastroenterology Hospital de Clínicas de Porto AlegrePorto Alegre 90035-903Rio Grande do SulBrazil Laboratory of Inflammatory and Neoplastic Cells Universidade Federal do ParanáParaná81530900Brazil Department of Gastroenterology(LIM07) Faculdade de Medicina da Universidade de São PauloSão Paulo 01246903Brazil Facultad de Ciencias de la Salud Universidad Católica de las MisionesPosadasMisiones 3300Argentina Unit of Surgical Pathology Hospital de Clinicas de Porto AlegrePorto Alegre 90035-903Rio Grande do SulBrazil Center of Biotechnology Universidade Federal do Rio Grande do SulPorto Alegre 90035-003Rio Grande do SulBrazil Department of Morphological Sciences Universidade Federal do Rio Grande do SulPorto Alegre 90.050-170Rio Grande do SulBrazil Conselho Nacional de Desenvolvimento Científico e Tecnológico(CNPq) Conselho Nacional de Desenvolvimento Científico e Tecnológico(CNPq)ResearcherBrasília 71.605-001Brazil

BACKGROUND Prevalence of hepatocellular carcinoma(HCC)is increasing,especially in patients with metabolic dysfunctionassociated steatotic liver disease(MASLD).AIM To investigate rifaximin(RIF)effects on epigenetic/autophagy markers in *** Adult Sprague-Dawley rats were randomly assigned(n=8,each)and treated from 5-16 wk:Control[standard diet,water plus gavage with vehicle(Veh)],HCC[high-fat choline deficient diet(HFCD),diethylnitrosamine(DeN)in drinking water and Veh gavage],and RIF[HFCD,DeN and RIF(50 mg/kg/d)gavage].Gene expression of epigenetic/autophagy markers and circulating miRNAs were *** All HCC and RIF animals developed metabolic-dysfunction associated steatohepatitis fibrosis,and cirrhosis,but three RIF-group did not develop *** animals who developed HCC with those who did not,miR-122,miR-34a,tubulin alpha-1c(Tuba-1c),metalloproteinases-2(Mmp2),and metalloproteinases-9(Mmp9)were significantly higher in the *** opposite occurred with Becn1,coactivator associated arginine methyltransferase-1(Carm1),enhancer of zeste homolog-2(ezh2),autophagy-related factor LC3A/B(Map1 Lc3b),and p62/sequestosome-1(p62/SQSTM1)-*** with controls,Map1 Lc3b,Becn1 and ezh2 were lower in HCC and RIF-groups(Per in HCC compared to RIF(Pepatic expression of Mmp9 was higher in HCC in relation to the control;the opposite was observed for p62/Sqstm1(Pexpression of p62/SQSTM1 protein was lower in the RIF-group compared to the control(P=0.024).There was no difference among groups for Tuba-1c,Aldolase-B,alpha-fetoprotein,and Mmp2(P>0.05).miR-122 was higher in HCC,and miR-34a in RIF compared to controls(Per in HCC compared to RIF,and the inverse was observed for miR-224(Pere was no difference among groups regarding miR-33a,miR-143,miR-155,miR-375 and miR-21(P>0.05).CONCLUSION RIF might have a possible beneficial effect on preventing/delaying liver carcinogenesis throu

关键词： Animal model Autophagy epigenetic Hepatocellular carcinoma Metabolic dysfunction-associated steatotic liver disease Rifaximin

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How Sugars Might Coordinate Chloroplast and Nuclear Gene expression during Acclimation to High Light Intensities

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Molecular Plant 2014年第7期7卷 1121-1137页

作者： Rainer e. Haiusler Luisa Heinrichs jessica Schmitz Ulf-Ingo Flugge Department of Botany II Cologne Biocenter University of Cologne ZuIpicherstr. 47b 50674 Cologne Germany Present address: Plant Molecular Physiology and Biotechnology Heinrich-Heine-University Universitatsstrasse 1 40225 D~sseldorfGermany

The concept of retrograde control of nuclear gene expression assumes the generation of signals inside the chloroplasts, which are either released from or sensed inside of the organelle. In both cases, downstream signaling path- ways lead eventually to a differential regulation of nuclear gene expression and the production of proteins required in the chloroplast. This concept appears reasonable as the majority of the over 3000 predicted plastidial proteins are encoded by nuclear genes. Hence, the nucleus needs information on the status of the chloroplasts, such as during acclimation responses, which trigger massive changes in the protein composition of the thylakoid membrane and in the stroma. Here, we propose an additional control mechanism of nuclear- and plastome-encoded photosynthesis genes, taking advantage of pathways involved in sugar- or hormonal signaling. Sugars are major end products of photosynthesis and their con- tents respond very sensitively to changes in light intensities. Based on recent findings, we ask the question as to whether the carbohydrate status outside the chloroplast can be directly sensed within the chloroplast stroma. Sugars might syn- chronize the responsiveness of both genomes and thereby help to coordinate the expression of piastome- and nuclear- encoded photosynthesis genes in concert with other, more specific retrograde signals.

关键词： acclimation--physiological assimilate allocation/partitioning carbohydrate metabolism molecular physiology membrane proteins Arabidopsis.

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DNA recovery and analysis from skeletal material in modern forensic contexts

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Forensic Sciences Research 2019年第1期4卷 51-59页

作者： Krista e.Latham jessica J.Miller Biology Department Human Identification CenterUniversity of IndianapolisIndianapolisINUSA

The generation of a DNA profile from skeletal remains is an important part of the identifica-tion process in both mass disaster and unidentified person cases. Since bones and teeth are often the only biological materials remaining after exposure to environmental conditions, intense heat, certain traumatic events and in cases where a significant amount of time has passed since the death of the individual, the ability to purify large quantities of informative DNA from these hard tissues would be beneficial. Since sampling the hard tissues for gen-etic analysis is a destructive process, it is important to understand those environmental and intrinsic factors that contribute to DNA preservation. This will serve as a brief introduction to these topics, since skeletal sampling strategies and molecular taphonomy have been dis-cussed in depth elsewhere. Additionally advances in skeletal DNA extraction and analysis will be discussed. Currently there is great variation in the DNA isolation methods used by laboratories to purify DNA from the hard tissues;however, a standardized set of short tan-dem repeat (STR) loci is analyzed by many US laboratories to allow for comparisons across samples and jurisdictions. Recent advances have allowed for the generation of DNA profiles from smaller quantities of template DNA and have expanded the number of loci analyzed for greater discriminatory power and predictions regarding the geographic ancestry and phenotype of the individual. Finally, utilizing databases and expanding the number of com-parison samples will be discussed in light of their role in the identification process.

关键词： Forensic sciences forensic anthropology forensic genetics individual identification molecular taphonomy skeletal DNA extraction DNA profiles DNA databases

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A Comparative Study of the effect of Gold Seed Particle Preparation Method on Nanowire Growth

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Nano Research 2010年第7期3卷 506-519页

作者： Maria e.Messing Karla Hillerich jessica Bolinsson Kristian Storm Jonas Johansson Kimberly A.Dick Knut Deppert Solid State Physics Lund UniversityBox 118S-22100 LundSweden Polymer&Materials Chemistry Lund UniversityBox 124S-22100 LundSweden

Highly controlled particle-assisted growth of semiconductor nanowires has been performed for many years,and a number of novel nanowire-based devices have been *** control of the epitaxial growth is required to optimize the performance of devices,and gold seed particles are known to provide the most controlled *** nanowire growth from gold particles generated and deposited by various different methods has been reported,but no investigation has yet been performed to compare the effects of gold particle generation and deposition methods on nanowire *** this article we present a direct comparative study of the effect of the gold particle creation and deposition methods on nanowire growth characteristics and nanowire crystal structure,and investigate the limitations of the different generation and deposition methods used.

关键词： Nanowire growth nanoparticles gold epitaxy electron microscopy

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Curcumin-loaded polymeric nanoparticles for neuro-protection in neonatal rats with hypoxic-ischemic encephalopathy

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Nano Research 2018年第10期11卷 5670-5688页

作者： Andrea Joseph Thomas Wood Chih-Chung Chen Kylie Corry jessica M. Snyder Sandra e. Juul Pratik Parikh elizabeth Nance Department of Chemical engineering University of Washington Seattle WA 98195 USA Division of Neonatology Department of Pediatrics University of Washington Seattle WA 98195 USA Department of Comparative Medicine University of Washington Seattle WA 98195 USA Department of Radiology University of Washington Seattle WA 98195 USA

Hypoxic-ischemic encephalopathy is the leading cause of permanent brain injury in term newborns and currently has no cure. Inflammatory processes play a key role in the progression of this disease and may be amenable to a targeted pharmaceutical intervention. Curcumin is a dietary compound with potent anti-inflammatory, antioxidant, and antiapoptotic properties but is limited in therapeutic applications due to its low aqueous solubility, low bioavailability, and rapid first-pass hepatic metabolism. To address these limitations, loading curcumin into poly（lactic-co-glycolic acid）-poly（ethylene glycol）（PLGA-PeG） nanoparticles may increase relevant pharmacokinetic parameters and allow for effective drug delivery to the brain. Using the Vannucci model of unilateral hypoxic-ischemic brain injury in neonatal rats, we studied the in vivo effect of curcumin-loaded PLGA-PeG nanoparticles on brain uptake and diffusion of curcumin and on neuroprotection. The curcumin-loaded nanoparticles were able to overcome the impaired blood-brain barrier, diffuse effectively through the brain parenchyma, localize in regions of injury, and deliver a protective effect in the injured neonatal brain. The application of curcumin and PLGA-PeG nanoparticle-mediated delivery to a clinically relevant model of neonatal brain injury provides greater opportunities for clinical translation of targeted therapies for hypoxic-ischemic encephalopathy.

关键词： drug delivery neuroprotection brain penetrating neonatal hypoxia-ischemia curcumin nanotherapeutics

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Fertility preservation in female cancer patients:a single center experience

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Chinese Journal of Cancer 2015年第1期34卷 56-60页

作者： Cristina Sigismondi enrico Papaleo Paola Viganò Simona Vailati Massimo Candiani jessica Ottolina Valentina e. Di Mattei Giorgia Mangili Gynecology Department Preservation of Fertility Unit IRCCS San Raffaele Hospital

Advances in cancer treatment allow women to be cured and live longer. However, the necessary chemotherapy and radiotherapy regimens have a negative impact on future fertility. Oncofertility has emerged as a new interdisciplinary field to address the issue of gonadotoxicity associated with cancer treatment and to facilitate fertility preservation, including oocyte and ovarian tissue cryopreservation. These fertility issues are often inadequately addressed, and referral rates to oncofertility centers are low. The aim of this study was to report the 3-year experience of the San Raffaele Oncofertility Unit. A total of 96 patients were referred to the Oncofertility Unit for evaluation after the diagnosis of cancer and before gonadotoxic treatment between April 2011 and June 2014. Of the 96 patients, 30(31.2%) were affected by breast cancers, 20(20.8%) by sarcomas, 28(29.2%) by hematologic malignancies, 13(13.5%) by central nervous system cancers, 3(3.1%) by bowel tumors, 1(1.0%) by Wilms' tumor, and 1(1.0%) by a thyroid tumor; 47(49.0%) were referred for oocyte cryopreservation before starting chemotherapy, 20(20.8%) were referred for ovarian tissue cryopreservation, and 29(30.2%) were not recruited. The mean time between the patients' counseling and oocyte retrieval was 15 days(range, 2–37 days). The mean time between the laparoscopic surgery and the beginning of treatment was 4 days(range, 2–10 days). The number of patients who were referred increased over time, whereas the rate of patients who were not recruited decreased, showing an improvement in referrals to the Oncofertility Unit and in the patients' counseling and understanding. Our results indicate that an effective multidisciplinary oncofertility team is necessary for prompt referrals and treatment.

关键词：癌症患者生育功能癌症治疗女性冷冻保存中枢神经系统平均时间卵巢组织

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