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Ornithine aspartate effects on bacterial composition and metabolic pathways in a rat model of steatotic liver disease

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World Journal of Hepatology 2024年第5期16卷 832-842页

作者： Elisa Carolina lange Pabulo Henrique Rampelotto la.isse longo laura Bainy Rodrigues de Freitas Carolina Uribe-Cruz Mario Reis Alvares-da-Silva Experimental laboratory of Hepatology and Gastroenterology Hospital de Clínicas de Porto AlegrePorto Alegre 90035-007Brazil Graduate Program in Gastroenterology and Hepatology Universidade Federal do Rio Grande do SulPorto Alegre 90035-007Brazil Bioinformatics and Biostatistics Core Facility Universidade Federal do Rio Grande do SulPorto Alegre 91501-970Brazil Graduate Program in Biological Sciences:Pharmacology and Therapeutics Universidade Federal do Rio Grande do SulPorto Alegre 90035-007Brazil Facultad de Ciencias de la Salud Universidad Católica de las MisionesPosadasMisiones 3300Argentina Division of Gastroenterology Hospital de Clínicas de Porto AlegrePorto Alegre 90035-007RSBrazil Conselho Nacional de Desenvolvimento Científico e Tecnológico(CNPq)researcher Brasília 71605-001Brazil

BACKGROUND Metabolic-dysfunction associated steatotic liver disease(MASLD)is a hepatic manifestation of metabolic *** suggest ornithine aspartate(LOla)as drug *** To analyze the influence of LOla intake on gut microbiota using a nutritional model of *** Adult male Sprague Dawley rats were randomized into three groups:Control(10 rats fed with a standard diet),MASLD(10 rats fed with a high-fat and choline-deficient diet),and LOla(10 rats receiving 200 mg/kg/d LOla,after the 16th week receiving high-fat and choline-deficient diet).After 28 wk of the experiment,animals were euthanized,and feces present in the intestine were *** fecal DNA extraction,the V4 region of the 16S rRNA gene was amplified followed by sequencing in an Ion S5™*** Alpha and beta diversity metrics were comparable between MASLD and LOla.3 OTUs were differentially abundant between MASLD and LOla,which belong to the species Helicobacter rodentium,Parabacteroides goldsteinii,and Parabacteroides *** functional prediction provided two different metabolic profiles between MASLD and *** 9 pathways differentially abundant in MASLD are related to a change in energy source,adenosine/purine nucleotides degradation as well as guanosine and adenosine deoxyribonucleotides *** 14 pathways differentially abundant in LOla are associated with four major metabolic functions primarily influenced by L-aspartate,including tricarboxylic acid cycle pathways,purine/guanosine nucleotides biosynthesis,pyrimidine ribonucleotides biosynthesis and salvage as well as lipid IVA *** Although LOla had no influence on alpha and beta diversity in this nutritional model of MASLD,it was associated with changes in specific gut microbes and their related metabolic pathways.

关键词： Animal model Gut microbiota Metabolic-associated steatotic liver disease Metabolic prediction Ornithine aspartate

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Possible viral agents to consider in the differential diagnosis of blepharoconjunctivitis

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World Journal of Virology 2024年第4期13卷 120-134页

作者： Mutali Musa Babatunde Ismail Bale Ayuba Suleman Gladness Aluyi-Osa Ekele Chukwuyem FabianaD’Esposito Caterina Gagliano Antonio longo Andrea Russo Marco Zeppieri Department of Optometry University of BeninBenin 300283Nigeria Department of Ophthalmology Africa Eye Laser Centre LtdBenin 300105Nigeria Department of Ophthalmology Centre for Sight Africa LtdNkpor 434212Nigeria Imperial College Ophthalmic Research Group Unit Imperial CollegeLondon NW15QHUnited Kingdom GENOFTA srl Via A.Balsamo93Naples 80065Italy Department of Medicine and Surgery University of Enna"Kore"Catania 94100Italy Eye Clinic Catania University San Marco HospitalCatania 95121Italy Department of Ophthalmology University Hospital of CataniaCatania 95123Italy Department of Ophthalmology University Hospital of UdineUdine 33100Italy

BACKGROUND Blepharoconjunctivitis poses a diagnostic challenge due to its diverse etiology,including viral *** can be acute or chronic,selflimiting,or needing medical *** To review possible viral agents crucial for accurate differential diagnosis in cases of *** The PubMed database was searched for records relating to viral *** search string generated was“("virally"[All Fields]OR"virals"[All Fields]OR"virology"[MeSH Terms]OR"virology"[All Fields]OR"viral"[All Fields])AND"Blepharoconjunctivitis"[All Fields]".RESULTS A total of 24 publications were generated from the search *** lists from each relevant article were also searched for more information and included in this *** etiologies such as adenovirus,herpes simplex virus(HSV),varicella-zoster virus(VZV),and Epstein-Barr virus(EBV)are frequently *** infections manifest with follicular conjunctivitis and preauricular lymphadenopathy,often presenting as epidemic *** and VZV infections can result in herpetic keratitis and may exhibit characteristic dendritic corneal ***,although less common,can cause unilateral or bilateral follicular conjunctivitis,particularly in immunocompromised *** potential viral agents,such as enteroviruses and molluscum contagiosum virus,should also be considered,especially in pediatric *** Prompt recognition of these viral etiologies is essential for appropriate management and prevention of ***,a thorough understanding of the clinical presentation,epidemiology,and diagnostic modalities is crucial for accurate identification and management of viral blepharoconjunctivitis.

关键词： Viral Blepharoconjunctivitis Herpes simplex virus Varicella-Zoster Epstein-Barr

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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 la.isse 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(Plation to the control;the opposite was observed for p62/Sqstm1(Plase-B,alpha-fetoprotein,and Mmp2(P>0.05).miR-122 was higher in HCC,and miR-34a in RIF compared to controls(P0.05).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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Antibiotic Resistance Profile of Serotypes of Streptococcus pneumoniae Strains in Bangui, from 2017 to 2022: Case of Serotype 1

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Open Journal of Medical Microbiology 2024年第2期14卷 131-145页

作者： Zéphirin Dalengat Vogbia Ernest lango Yaya Marceline Djeintote Stéphanie Judith N’Yetobouko Jean de Dieu longo Clotaire Donatien Rafaï Christian Diamant Mossoro-Kpindet Gérard Gresenguet Epidemiology and Research Service National Reference Center for Sexually Transmitted Infections and Anti-Retroviral Therapy Ministry of Health Bangui Central African Republic Faculty of Health Sciences Doctoral School of Human and Veterinary Health Sciences University of Bangui Bangui Central African Republic National laboratory of Clinical Biology and Public Health Bangui Central African Republic National Blood Transfusion Center Bangui Central African Republic Public Department Ministry of Health Bangui Central African Republic

Goals: The aim of this study was to determine the antibiotic resistance profile of serotypes of Streptococcus pneumoniae strains circulating in Bangui. Methodology: A prospective and analytical analysis was carried out at the National laboratory of Clinical Biology and Public Health from 2017 to 2022. The strains came from our study on the contribution to the study of antibiotic sensitivity of Streptococcus pneumoniae strains. The multiplex PCR test was used for its cost-effectiveness in terms of amplifiers which can be purified in order to be sequenced. It also makes it possible to detect several germs as well as their serotypes. For a PCR reaction, several elements are involved in the reaction medium or Master Mix. These are the desoxyribonucleotides (dNTPs), the magnesium ions (MgCl2) and the primers. A set of 14 primers divided into 3 classes were used. Class 1 primers served as an internal control by targeting the cpsA gene. It is a highly conserved gene found in capsular loci characterized to date. The primers of the second class were used to target specific serotypes by specific reactions (out of six possibilities). The group reaction was carried out using the primers of the third class in order to carry out an initial screening of the samples and to classify the pneumococcal isolates. Related serotypes were grouped based on the amplification of common genes. Using the technique of electrophoresis on agarose gel and an ultraviolet radiation device, the migration bands are then visualized and analyzed. The data collected had been entered into Excel 2010 and analyzed with Epi info 7. The exact Fischer chi2 test at the 5% threshold, the relative risk and its 95% confidence interval were used to compare the proportions and determine the associations. Results: 187 antibiotic-resistant strains of Streptococcus pneumoniae were collected. The average frequency of serotypes 1, 9A, 4 and untypeable identified were 43.59%, 18.18%, 18.27% and 39.57% respectively. The fre

关键词： Streptococcus pneumonia Serotype Antibiotic Resistance Bangui

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Growth mechanism of octahedron-like BaMoO_4 microcrystals processed in microwave-hydrothermal:Experimental observations and computational modeling

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Particuology 2009年第5期7卷 353-362页

作者： laécio Santos Cavalcante Júlio César Sczancoski Rircado Luis Tranquilin José Arana Varela Elson longo Marcelo Ornaghi Orlandi Departamento de Química UFSCarP.O. Box 67613565-905So CarlosSPBrazil Instituto de Química-UNESP P.O. Box 35514801-907AraraquaraSPBrazil

Octahedron-like BaMoO4 microcrystals were synthesized by the co-precipitation method at room temperature and processed in microwave-hydrothermal at 413 K for different times （from 30 min to 5 h）. These microcrystals were analyzed by X-ray diffraction （XRD）, field-emission gun scanning electron microscopy （FEG-SEM） and transmission electron microscopy （TEM）. XRD patterns showed that this material presents a tetragonal structure without the presence of deleterious phases. FEG-SEM and TEM micrographs revealed that the BaMoO4 microcrystals present an octahedron-like morphology with agglomerate nature and polydisperse particle size distribution. These micrographs also indicated that the microcrystals grow along the [0 01 ] direction. The observed crystallographic planes in these structures were modeled computationally and a crystal growth model was proposed in order to explain the morphological changes as a function of processing time.

关键词： BaMoO4 Growth process Microwave-hydrotherma Supersaturated solution

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Contribution to the Study of the Incidence of Post-Streptococcal Complications in Republic Central African Republic from 2015 to 2018

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Open Journal of Epidemiology 2024年第1期14卷 110-121页

作者： Zéphirin Dalengat Vogbia Ernest lango Yaya Jean De Dieu longo Augustin Balekouzou Gaspard Tekpa Christian Maucler Pamaticka Stéphanie Judith N’Yetobouko Maurel Anicet Adonis Ouoko Fatigbia Christian Diamant Mossoro Kpindet Gérard Gresenguet Epidemiology and Research Service National Reference Center for Sexually Transmitted Infections and Anti-Retroviral Therapy Ministry of Health Bangui Central African Republic Direction of National laboratory of Clinical Biology and Public Health Ministry of Health Bangui Central African Republic Training Project Manager and Heald of Public Departement Ministry of Health Bangui Central African Republic Faculty of Health Sciences Doctoral School of Human and Veterinary Health Sciences University of Bangui Bangui Central African Republic National Committee for the Fight against AIDS Primature Bangui Central African Republic Infectious Disease Department The Sino Central African Friendship University Hospital Center Bangui Central African Republic Epidemiology Department Bangui National University Hospital Center Bangui Central African Republic

Introduction: Acute rheumatic fever (AAR) is a non-suppurative complication of late infection by group A. Infections due to streptococci remain a public health problem in the Central African Republic. The present study aims to determine the incidence rate of AAR cases and its complications. Methodology: This was a retrospective and analytical study over a period of 4 years (from January 2015 to December 2018) at the National laboratory of Clinical Biology and Public Health (LNBCSP) in Bangui. It focused on samples concerning the diagnosis of AAR and patient files seen in consultation in the capital’s reference health establishments. laboratory registers and patient consultation files were used to collect data. They were entered into Excel 2010 to be analyzed with Epi Info 7. A univariate analysis by logistic regression, Ficher’s exact test, and chi2 at the 5% threshold (p Results: We analyzed 94 cases meeting Jones’s criteria. The ages of the patients ranged from 18 to 85 years (mean age 52 years and mode 45 years). The incidence rate of AAR for the female sex was higher than that of the male sex during the study period (p > 0.05). It went from 166.6 in 2015 to 200 in 2016 and 2018 cases of AAR per 1000 people per year. The average incidence rate was 296.18 cases of AAR per 1000 people per year. The average incidence rate was 223.5 cases of AAR per 1000 people per year for joint damage. Joint damage represented 80.85% (RR = 0.62;Chi2 = 4.88;95% CI [0.39-0.97];p Conclusion: The study allowed data on the impact rate and complications of the AAR in Bangui. Special attention to data management will help produce a complete result on the problem. Joint complications predominated. Sustaining an effective surveillance system and preventing infection would help reduce the risk of AAR occurrence.

关键词： Incidence Acute Joint Rheumatism Central African Republic

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Probiotics to counteract biofilm-associated infections: promising and conflicting data

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International Journal of Oral Science 2014年第4期6卷 189-194页

作者： Claudia Vuotto Francesca longo Gianfranco Donelli Microbial Biofilm laboratory IRCCS Fondazione Santa Lucia Rome Italy

Altered bowel flora is currently thought to play a role in a variety of disease conditions, and the use of Bifidobacterium spp. and lactobacillus spp. as probiotics has been demonstrated to be health-promoting, even if the success of their administration depends on the applied bacterial strain（s） and the targeted disease. In the last few decades, specific probiotics have been shown to be effective in the treatment or the prevention of acute viral gastroenteritis, pediatric post-antibiotic-associated diarrhea, some pediatric allergic disorders, necrotizing enterocolitis in preterm infants, inflammatory bowel diseases and postsurgical pouchitis. The potential application of probiotics is continuously widening, with new evidence accumulating to support their effect on the prevention and treatment of other disease conditions, including several oral diseases, such as dental caries, periodontal diseases and oral malodor, as well as genitourinary and wound infections. Considering the increasingly widespread ability of pathogens to generate persistent biofilm-related infections, an even more attractive proposal is to administer probiotics to prevent or counteract biofilm *** response of biofilm-based oral, intestinal, vaginal and wound infections to probiotics treatment will be reviewed here in light of the most recent results obtained in this field.

关键词： biofilm genitourinary tract gut infections oral cavity probiotics wounds

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Hydroxychloroquine-azithromycin,doubase C,and QTc prolongation in congolese patients with COVID-19:Myth or reality?

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World Journal of Virology 2024年第2期13卷 107-114页

作者： Brady Madioko Makanzu Jean-Robert Makulo Madone Ndona Mandina Dimosi Roger Wumba Murielle Mashi longokolo Hippolyte Situakibanza Ossam Odio Donat Sonzi Mangala Constantin Mihigo Bashengezi Benjamin Kabwe Mwilambwe Gilbert Kabanda Kurhenga Benjamin longo-Mbenza Roger Mwimba Mbungu Department of Cardiology Kinshasa University HospitalKinshasaDR CongoKinshasa University HospitalKinshasa 11Congo Nephrology Unit Kinshasa University HospitalKinshasaDemocratic Republic of the CongoKinshasa 11KinshasaCongo Department of Infectious Diseases Kinshasa University HospitalKinshasaDR CongoKinshasa 11Congo Department of Tropical Medicine University of KinshasaKinshasa 11Congo Department of Infectious Diseases University of Kinshasa HospitalKinshasa 11Congo Department of Tropical Medicine and Infectious Disease School of MedicineUniversity of KinshasaKinshasa 11Congo COVID-19 Treatment Center Kinshasa University HospitalKinshasaKinshasa 11Congo Centre de Recherche en Phytothérapie Pharmacopée Africaine et Technologie pharmaceutiqueKinshasa 11Congo Intensive Care Unit Kinshasa University HospitalKinshasa 11Congo Department of Gynecology and Obstetrics Kinshasa University HospitalKinshasa 11Congo

BACKGROUND QTc interval prolongation with an increased risk of torsade de pointes(Tsd)has been described in coronavirus disease 2019(COVID-19)patients treated with hydroxychloroquine(HCQ)and azithromycin(AZI)in Western *** the DR Congo,few studies have evaluated the safety of this association or proposed new *** To determine the incidence of QTc prolongation and Tsd in COVID-19 patients treated with HCQ-AZIs vs doubase C(new molecule).METHODS In present randomized clinical trial,we have included patients with mild or moderate COVID-19 treated with either HCQ-AZI or doubase ***(ECG)changes on day 14 of randomization were determined based on pretreatment *** QTc was defined as≥500 ms on day 14 or an increase of≥80 ms compared to pretreatment *** with cardiac disease,those undergoing other treatments likely to prolong QTc,and those with disturbed ECG tracings were excluded from the *** The study included 258 patients(mean age 41±15 years;52%men;3.4%diabetics,11.1%hypertensive).Mild and moderate COVID-19 were found in 93.5%and 6.5%of patients,*** baseline,all patients had normal sinus rhythm,a mean heart rate 78±13/min,mean PR space 170±28 ms,mean QRS 76±13 ms,and mean QTc 405±30 *** complaints suggesting cardiac involvement were reported during or after *** four patients(1.5%)experienced QTc interval prolongation beyond 500 ***,only five patients(1.9%)had an increase in the QTc interval of more than 80 *** prolongation was more significant in younger patients,those with high viral load at baseline,and those receiving HCQ-AZI(Plain our results.

关键词： QTc prolongation COVID-19 Doubase C HCQ-AZT Sub-Saharan Africa

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Mayombian ethnic,vegetables low intake,insulin treatment,diabetic nephropathy and severe diabetic retinopathy are determinants of blindness in diabetic Africans

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International Journal of Ophthalmology(English edition) 2013年第5期6卷 727-732页

作者： Mvitu Muaka Moise longo-Mbenza Benjamin Cibanda Yokobo Enoch longo Phemba Igor Department of Ophthalmology Faculty of MedicineUniversity of Kinshasa Walter Sisulu University Faculty of Health Sciences Department of Anaesthesiology Nelson Mandela Academic Hospital School of International Studies Wenzhou Medical College

AIMTo determine the frequency and causes of blindness in diabetic Africans.

关键词： diabetes mellitus blindness ethnicity Mayombe diabetic retinopathy insulin treatment Africans

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The East London glaucoma prediction score: web-based validation of glaucoma risk screening tool

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International Journal of Ophthalmology(English edition) 2013年第1期6卷 95-102页

作者： Cook Stephen longo-Mbenza Benjamin The Eye Centre East London Eastern Cape Province Faculty of Health Sciences Walter Sisulu University

AIM:It is difficult for Optometrists and General Practitioners to know which patients are at risk. The East London glaucoma prediction score (ELGPS) is a web based risk calculator that has been developed to determine Glaucoma risk at the time of screening. Multiple risk factors that are available in a low tech environment are assessed to provide a risk assessment. This is extremely useful in settings where access to specialist care is difficult. Use of the calculator is educational. It is a free web based service. Data capture is user specific. METHODS:The scoring system is a web based questionnaire that captures and subsequently calculates the relative risk for the presence of Glaucoma at the time of screening. Three categories of patient are described:Unlikely to have Glaucoma; Glaucoma Suspect and Glaucoma. A case review methodology of patients with known diagnosis is employed to validate the calculator risk assessment. RESULTS:Data from the patient records of 400 patients with an established diagnosis has been captured and used to validate the screening tool. The website reports that the calculated diagnosis correlates with the actual diagnosis 82% of the time. Biostatistics analysis showed:Sensitivity = 88% ; Positive predictive value = 97%; Specificity = 75%. CONCLUSION:Analysis of the first 400 patients validates the web based screening tool as being a good method of screening for the at risk population. The validation is ongoing. The web based format will allow a more widespread recruitment for different geographic, population and personnel variables.

关键词： glaucoma score diagnosis tomography management South Africa

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