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Feeding broiler chickens with arginine above recommended levels:effects on growth performance,metabolism,and intestinal microbiota

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Journal of Animal Science and Biotechnology 2023年第4期14卷 1528-1541页

作者： Giorgio Brugaletta Marco Zampiga Luca Laghi valentina indio Chiara Oliveri Alessandra De Cesare Federico Sirri Department of Agricultural and Food Sciences Alma Mater Studiorum-University of BolognaOzzano Dell’Emilia40064 BolognaItaly Department of Veterinary Medical Sciences Alma Mater Studiorum-University of BolognaOzzano Dell’Emilia40064 BolognaItaly Department of Physics and Astronomy Alma Mater Studiorum-University of Bologna40127 BolognaItaly

Background Arginine is an essential amino acid for chickens and feeding diets with arginine beyond the recommended levels has been shown to influence the growth performance of broiler chickens in a positive ***,further research is required to understand how arginine supplementation above the widely adopted dosages affects metabolism and intestinal health of ***,this study was designed to assess the effects of arginine supplementation(i.e.,total arginine to total lysine ratio of 1.20 instead of 1.06-1.08 recommended by the breeding company) on growth performance of broiler chickens and to explore its impacts on the hepatic and blood metabolic profiles,as well as on the intestinal *** this purpose,630 one-day-old male Ross 308 broiler chicks were assigned to 2 treatments(7 replicates each) fed a control diet or a crystalline L-arginine-supplemented diet for 49 *** Compared to control birds,those supplemented with arginine performed significantly better exhibiting greater final body weight at D49(3778 vs.3937 g;P < 0.001),higher growth rate(76.15 vs.79.46 g of body weight gained daily;P < 0.001),and lower cumulative feed conversion ratio(1.808 vs.1.732;P < 0.05).Plasma concentrations of arginine,betaine,histidine,and creatine were greater in supplemented birds than in their control counterparts,as were those of creatine,leucine and other essential amino acids at the hepatic *** contrast,leucine concentration was lower in the caecal content of supplemented *** alpha diversity and relative abundance of Firmicutes and Proteobacteria(specifically Escherichia coli),as well as increased abundance of Bacteroidetes and Lactobacillus salivarius were found in the caecal content of supplemented *** The improvement in growth performance corroborates the advantages of supplementing arginine in broiler *** can be hypothesized that the performance enhancement found in this study is associated with the i

关键词： Arginine Broiler chicken Growth performance Metabolism Microbiota

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Successful multidisciplinary clinical approach and molecular characterization by whole transcriptome sequencing of a cardiac myxofibrosarcoma: A case report

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World Journal of Clinical Cases 2019年第19期7卷 3018-3026页

作者： Maristella Saponara valentina indio Carmine Pizzi Elena-Daniela Serban Milena Urbini Annalisa Astolfi Pasquale Paolisso Sofia Martin Suarez Margherita Nannini Davide Pacini valentina Agostini Ornella Leone valentina Ambrosini Giuseppe Tarantino Stefano Fanti Fabio Niro Francesco Buia Domenico Attinà Maria Abbondanza Pantaleo Department of Specialized Experimental and Diagnostic MedicineMedical Oncology UnitSant'Orsola-Malpighi HospitalUniversity of BolognaBologna 40138Italy “Giorgio Prodi”Cancer Research Center University of BolognaBologna 40138Italy Department of Specialized Experimental and Diagnostic MedicineCardiology and Transplantation UnitSant’Orsola-Malpighi HospitalUniversity of BolognaBologna 40138Italy Department of Pathology Cardiovascular Pathology UnitSant’Orsola-Malpighi HospitalUniversity of BolognaBologna 40138Italy Departments of Cardiovascular Surgery and Transplantation Sant'Orsola-Malpighi HospitalUniversity of BolognaBologna 40138Italy Department of Specialized Experimental and Diagnostic MedicineNuclear Medicine UnitSant'Orsola-Malpighi HospitalUniversity of BolognaBologna 40138Italy Department of Specialized Experimental and Diagnostic MedicineRadiology UnitSant'Orsola-Malpighi HospitalUniversity of BolognaBologna 40138Italy

BACKGROUND Cardiac tumors are rare and complex *** represents the cornerstone of therapy,while the role of adjuvant treatment remains unclear and,in case of relapse or metastatic disease,the prognosis is very *** of prospective,randomized clinical trials hinders the generation of high level evidence for the optimal diagnostic workup and multimodal treatment of cardiac ***,we describe the multidisciplinary clinical management and molecular characterization of a rare case of cardiac myxofibrosarcoma in an elderly *** SUMMARY A 73-year-old woman presented signs and symptoms of acute left-sided heart *** examination revealed a large,left atrial *** suspicion of a myxoma,she underwent surgery,and symptoms were promptly *** showed a cardiac myxofibrosarcoma,a rare histotype of cardiac *** months later,disease unfortunately relapsed,and after a multidisciplinary discussion,a chemotherapy with doxorubicin and then gemcitabine was started,achieving partial radiologic and complete metabolic response,which was maintained up to 2 years and is still *** report is focused on the entire clinical path of our patient from diagnosis to follow-up,through surgery and strategies adopted at ***,due to their rarity,very little is known about the molecular landscape of ***,we also performed and described preliminary genome analysis of the tumor tissue to get further insight on mechanisms involved in tumor growth,and to possibly unveil new clinically actionable *** We report a case of cardiac myxofibrosarcoma that achieved a very good prognosis due to an integrated surgical,cardiac and oncologic treatment strategy.

关键词： Cardiac sarcoma Myxofibrosarcoma Whole transcriptome sequencing Doxorubicin Gemcitabine Case report

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Feeding broiler chickens with arginine above recommended levels: effects on growth performance, metabolism, and intestinal microbiota

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畜牧与生物技术杂志(英文版) 2023年第4期

作者： Giorgio Brugaletta Marco Zampiga Luca Laghi valentina indio Chiara Oliveri Alessandra De Cesare Federico Sirri

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