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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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Molecular survey of tick-borne pathogens in Ixodid ticks collected from hunted wild animals in Tuscany, Italy

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Asian Pacific Journal of Tropical Medicine 2015年第9期8卷 702-705页

作者： valentina Virginia Ebani Fabrizio Bertelloni Barbara Turchi Dario Filogari Domenico Cerri Department of Veterinary Science University of Pisa

Objective: To determine the prevalence of zoonotic tick-borne bacteria in feeding ticks removed from hunted wild animals. Methods: PCR was executed on DNA extracted from 77 tick pools to detect Anaplasma phagocytophilum, Bartonella spp., Borrelia burgdorferi sensu lato, Coxiella burnetii and Rickettsia spp. Results: A total of 432 ticks were collected: 30(6.94%) Haemaphysalis punctata, 72(16.7%) Dermacentor marginatus and 330(76.38%) Ixodes ricinus. For each animal one or two pools of 3 ticks of the same species was constituted. Seventy-seven tick pools were examined by PCR: 58(75.32%) resulted infected and among them 14(18.18%) showed co-infections. In particular, 29(37.66%) pools were positive for Bartonella spp., 23(29.87%) for Anaplasma phagocytophilum, 16(20.78%) for Rickettsia spp., and 5(6.49%) for Borrelia burgdorferi s.l. All samples were negative for Coxiella burnetii. Conclusions: The results demonstrate the presence of several zoonotic tick-borne pathogens in the studied area, and underline the risk of exposure to infections for hunters not only during the outdoor activity, but also when they manipulate hunted animals infested by infected ticks.

关键词： Ixodid ticks Tick-borne bacteria Wild animals PCR Hunters

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Occurrence of Escherichia coli virulence genes in feces of wild birds from Central Italy

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Asian Pacific Journal of Tropical Medicine 2019年第3期12卷 142-146页

作者： Fabrizio Bertelloni Errica Lunardo Guido Rocchigiani Renato Ceccherelli valentina Viginia Ebani Department of Veterinary Science University of Pisa CRUMA-LIPU

Objective: To investigate the potential role of wild birds as fecal spreaders of enteropathogenic,enterohemorrhagic and Shiga-toxins producing Escherichia coli(E. coli),enteropathogenic E. coli,enterohemorrhagic E. coli and Shiga toxin-producing E. coli strains. Methods: Fecal samples collected from 121 wild birds of different orders and species were submitted to molecular analyses. In particular,eaeA encoding intimin,hlyA encoding for hemolysin,stx1 and stx2 genes encoding Shiga-toxins 1 and 2,respectively,were investigated. Results: Overall,21(17.35%) fecal samples resulted positive for at least one of the investigated genes. In detail,12(9.91%) samples were positive for eaeA,10(8.26%) for stx1,4(3.31%) for hylA and 1(0.83%) for stx2. An owl(Athene noctua) positive for the four investigated genes suggesting that it harbored a STEC strain. However,virulence genes characterizing EPEC,and EHEC strains were mainly found among seagulls,waterfowl and feral pigeons. Conclusions: Seagulls,waterfowl and feral pigeons,which frequently reach and contaminate rural,urban and peri-urban areas with their droppings,may be important sources of E. coli infection for other animals and humans.

关键词： Wild birds Enteropathogenic Escherichia coli Enterohemorrhagic Escherichia coli Shiga-toxins producing Escherichia coli

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Sarcoidosis and chronic hepatitis C:A case report

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World Journal of Gastroenterology 2012年第40期18卷 5816-5820页

作者： Vadim Brjalin Riina Salupere valentina Tefanova Kaiu Prikk Natalia Lapidus Enn J■este Department of Internal Medicine West-Tallinn Central Hospital10617 TallinnEstonia Department of Internal Medicine University of Tartu Department of Virology National Institute for Health Development11619 TallinnEstonia Institute of Clinical Medicine Tallinn University of Technology Department of Pathology West-Tallinn Central Hospital Department of Pathology North Estonia Medical Centre

Several case reports deal with the relationship between hepatitis C virus （HCV） infection and pulmonary or he- patic sarcoidosis. Most publications describe interferon m-induced sarcoidosis. However, HCV infection per se is also suggested to cause sarcoqdosis. The present case report describes a case of biopsy-verified lung and liver sarcoidosis and HCV infection, and the out- come of antiviral therapy. In March 2009, a 25-year-old man presented with moderately elevated liver enzymes without any clinical symptoms. The patient was posi- tive for HCV antibodies and HCV RNA of genotype lb. Four months later the patient became dyspnoic and pulmonary sarcoidosis was diagnosed by lung biopsy and radiography. A short course of corticosteroid treat- ment relieved symptoms. Three months later, liver biopsy showed noncaseating granulomas consisting of epithelioid histiocytes and giant cells with a small amount of peripheral lymphocyte infiltration, without any signs of fibrosis. Chronic HCV infection with co- existence of pulmonary and hepatic sarcoidosis was diagnosed. Antiviral therapy with peginterferon ~ and ribavirin at standard doses was started, which lasted 48 wk, and sustained viral response was achieved. A second liver biopsy showed disappearance of granulo- mas and chest radiography revealed normalization of mediastinal and perihilar glands. The hypothesis that HCV infection perse may have triggered systemic sar- coidosis was proposed. Successful treatment of HCV infection led to continuous remission of pulmonary and hepatic sarcoidosis. Further studies are required to un- derstand the relationship between systemic sarcoidosis and HCV infection.

关键词： Pulmonary and hepatic sarcoidosis Hepa-titis C virus infection Sustained viral response Pegin-terferon c~ Ribavirin

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Multi-organ IgG4-related disease continues to mislead clinicians: A case report and literature review

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World Journal of Clinical Cases 2020年第15期8卷 3267-3279页

作者： Sandra Strainiene Lukas Sarlauskas Ilona Savlan valentina Liakina Ieva Stundiene Jonas Valantinas Clinic of Gastroenterology Nephrourology and SurgeryCentre of HepatologyGastroenterology and DieteticsInstitute of Clinical MedicineVilnius UniversityVilnius 01513Lithuania Clinic of Internal Diseases Family Medicine and OncologyCentre of Internal DiseasesInstitute of Clinical MedicineVilnius UniversityVilnius 01513Lithuania Department of Chemistry and Bioengineering Faculty of Fundamental ScienceVilnius Gediminas Technical UniversityVilnius 10223Lithuania

BACKGROUND Immunoglobulin G4-related disease(IgG4-RD)is a multisystemic mass forming immune-mediated disease that affects almost every organ and is a diagnostic challenge for every *** is a lack of adequate epidemiological data worldwide,and evidence-based treatment recommendations are not yet *** report the first case of IgG4-RD from Lithuania and the Baltic Sea region presented with thyroiditis,orbital myositis,orbitopathy,uveitis,scleritis,sialadenitis,autoimmune pancreatitis and *** SUMMARY A 54-year-old Caucasian male was admitted to our tertiary Centre complaining of severe weight loss,diarrhoea,abdominal pain,salivary gland swelling,sicca symptoms and *** examination,bilateral palpable masses in the projection of major salivary glands,severe protrusion of the left eyeball and cachexia were *** patient was previously diagnosed with autoimmune thyroiditis and endocrine *** magnetic resonance imaging(MRI)of the head revealed enlarged extraocular muscles indicating orbital *** biopsy from the salivary gland mass indicated *** MRI showed signs of autoimmune pancreatitis,and a serological test revealed the elevated serum IgG4 *** patient was then diagnosed with IgG4-RD and successfully treated with *** was a significant clinical,serological and radiological improvement after one month of treatment and no signs of relapse within twenty ***,it took almost 18 years and the efforts of eight different medical specialists to establish the correct *** A comprehensive approach to the patient is essential to improving the recognition of rare immune system conditions,such as IgG4-RD.

关键词： IgG4-related disease Autoimmune pancreatitis Sialadenitis Orbitopathy Autoimmune thyroiditis Case report Literature review

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Direct-acting antivirals and hepatocellular carcinoma in chronic hepatitis C: A few lights and many shadows

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World Journal of Gastroenterology 2018年第24期24卷 2582-2595页

作者： Maria Guarino Anna Sessa valentina Cossiga Federica Morando Nicola Caporaso Filomena Morisco Gastroenterology Unit Department of Clinical Medicine and SurgeryUniversity of Naples Federico Ⅱ

With the introduction of direct-acting antiviral agents(DAA), the rate of sustained virological response(SVR) in the treatment of hepatitis C virus(HCV) has radically improved to over 95%. Robust scientific evidence supports a beneficial role of SVR after interferon therapy in the progression of cirrhosis, resulting in a decreased incidence of hepatocellular carcinoma(HCC). However, a debate on the impact of DAAs on the development of HCC is ongoing. This review aimed to analyse the scientific literature regarding the risk of HCC in terms of its recurrence and occurrence after the use of DAAs to eradicate HCV infection. Among 11 studies examining HCC occurrence, the de novo incidence rate ranged from 0 to 7.4%(maximum follow-up: 18 mo). Among 18 studies regarding HCC recurrence, the rate ranged from 0 to 54.4%(maximum "not well-defined" followup: 32 mo). This review highlights the major difficulties in interpreting data and reconciling the results of the included studies. These difficulties include heterogeneous cohorts, potential misclassifications of HCC prior to DAA therapy, the absence of an adequate control group, short follow-up times and different kinds of follow-up. Moreover, no clinical feature-based scoring system accounts for the molecular characteristics and pathobiology of the tumours. Nonetheless, this review does not suggest that there is a higher rate of de novo HCC occurrence or recurrence after DAA therapy in patients with previous HCV infection.

关键词： hepatocellular carcinoma hepatitis C virus direct-acting antiviral agents occurrence recurrence

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Intracameral lidocaine as supplement to classic topical anesthesia for relieving ocular pain in cataract surgery

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International Journal of Ophthalmology(English edition) 2018年第12期11卷 1932-1935页

作者： Marcella Nebbioso Maria Luisa Livani valentina Santamaria Aloisa Librando Massimiliano Sepe Department of Sense Organs Faculty of Medicine and OdontologySapienza University of RomeRome 00185 Italy S.Maria Goretti Hospital via Guido Reni 1Latina 04100Italy

AIM: To evaluate safety, efficacy, and patient adherence of intracameral lidocaine as supplement of classic topical anesthetic drops in cataract ***: A prospective and controlled trial including a large cohort of 1650 individuals suffering with bilateral cataract not complicated, in program by phacoemulsification surgery, were randomly assigned to 2 different groups for the type of anesthesia received, 0.4% oxybuprocaine hydrochloride(INN) drops, and INN drops associated to intracameral 1% lidocaine hydrochloride monohydrate. At the end of surgery, tables were assigned to each patient indicating the degree of pain(0-3) felt during the ***: Thirty-two percent of patients in group 1 declared to have not felt any pain against the 77% of patients in group 2. Fifty-nine percent of patients in group 1 complained about only a slight discomfort against 20% of group 2 patients. Only a small percentage of patients in group 1(5%) admitted severe pain, while no patient in group 2 admitted severe pain. Four patients of group 2 reported an episode of transient amaurosis, lasting several hours after ***: Intracameral administration of lidocaine is a simple and secure method able to increase the analgesia during the cataract surgery, eliminating the discomfort and increasing also the cooperation of the patients during the steps of manipulation.

关键词： benoxinate cataract surgery lidocaine oxybuprocaine pain scores phacoemulsification

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Menstrual cycle abnormalities in women with inflammatory bowel disease and effects of biological therapy on gynecological pathology

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World Journal of Clinical Cases 2023年第21期11卷 4989-4995页

作者： Vaidota Malinauskiene Anastasija Zuzo valentina Liakina Edita Kazenaite Ieva Stundiene Clinic of Gastroenterology Nephrourology and SurgeryInstitute of Clinical MedicineFaculty of MedicineVilnius UniversityVilnius 01513Lithuania Faculty of Medicine Vilnius UniversityVilnius 01513Lithuania Department of Chemistry and Bioengineering Faculty of Fundamental SciencesVilnius TechVilnius 10223Lithuania

Inflammatory bowel disease(IBD)is a chronic condition that affects young individuals in their reproductive *** may have long-term implications on their reproductive,sexual,and mental *** has been related to menstrual ***,the administration of biological therapy can also result in gynecological issues in addition to the disease *** purpose of this review was to present potential menstrual cycle problems in patients with IBD,as well as the impact of adalimumab and other anti-tumor necrosis factor medications on gynecological pathology.

关键词： Menstrual disorders Inflammatory bowel disease Adalimumab Infliximab Anti-tumor necrosis factor-α

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Unveiling the morphogenetic code:A new path at the intersection of physical energies and chemical signaling

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World Journal of Stem Cells 2021年第10期13卷 1382-1393页

作者： Riccardo Tassinari Claudia Cavallini Elena Olivi valentina Taglioli Chiara Zannini Carlo Ventura National Laboratory of Molecular Biology and Stem Cell Engineering National Institute of Biostructures and Biosystems–ELDOR LABBologna 40129Italy

In this editorial,we discuss the remarkable role of physical energies in the control of cell signaling networks and in the specification of the architectural plan of both somatic and stem *** particular,we focus on the biological relevance of bioelectricity in the pattern control that orchestrates both developmental and regenerative *** this end,the narrative starts from the dawn of the first studies on animal electricity,reconsidering the pioneer work of Harold Saxton Burr in the light of the current *** finally discuss the most recent evidence showing that bioelectric signaling is an essential component of the informational processes that control pattern specification during embryogenesis,regeneration,or even malignant *** conclude that there is now mounting evidence for the existence of a Morphogenetic Code,and that deciphering this code may lead to unprecedented opportunities for the development of novel paradigms of cure in regenerative and precision medicine.

关键词： Physical energies Stem cells Bioelectricity Electromagnetic radiation Mechanical forces Morphogenetic code

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Poor performance of anti-mitochondrial antibodies for the diagnosis of primary biliary cholangitis in female Colombian patients:A singlecenter study

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World Journal of Gastroenterology 2021年第29期27卷 4890-4899页

作者： valentina Guatibonza-García Paula valentina Gaete Agustín Pérez-Londoño Danna Kathalina Puerto-Baracaldo Sebastián Antonio Gutiérrez-Romero Carlos O Mendivil Monica Tapias School of Medicine Universidad de los AndesBogotá110111Colombia Section of Endocrinology Department of Internal MedicineFundación Santa Fe de BogotáBogotá110111Colombia Department of Hepatology Fundación Santa Fe de BogotáBogotá110111Colombia

BACKGROUND Primary biliary cholangitis(PBC)is a serious disease that causes significant *** is confirmed with liver biopsy but autoantibodies are frequently used as proxies for *** performance of autoantibodies for the diagnosis of PBC seems to vary widely across *** To assess the diagnostic performance of several autoantibodies for the diagnosis of PBC in Latin American *** We studied 85 female adult Colombians,43 cases with biopsy-confirmed PBC and 42 controls in whom a liver biopsy ruled out *** anti-mitochondrial antibodies(AMAs),anti-smooth muscle antibodies(ASMAs)and anti-nuclear antibodies(ANAs),as well as total immunoglobulin(Ig)M and IgG were determined using immunofluorescence or enzyme-linked immunosorbent assay in all study participants within 1 year of the *** all variables,values analyzed were those closest to the date of the *** with viral or alcoholic hepatitis were *** Mean age at diagnosis was 58.7 years for cases and 56.9 years for controls,and the body mass index was lower among *** cases received ursodeoxycholic acid,while most controls received vitamin ***ögren syndrome and Hashimoto’s thyroiditis were the most frequent autoimmune comorbidities of *** prevalence of AMA positivity among PBC cases was unexpectedly *** sensitivity and specificity values were respectively 44.2%and 76.2%for AMA,74.4%and 38.1%for ANA,14.0%and 73.8%for ASMA,26.7%and 80.0%for IgG,and 57.1%and 85.7%for *** combination of positive AMA plus positive IgM had 91%positive predictive value for *** AMA-negative cases,the most prevalent antibodies were ANA(87.5%).In all,62%of AMA-positive and 84.6%of IgM-positive individuals had fibrosis in their *** AMA positivity was very low among female Latin American patients with *** performance of all antibodies was quite *** results highlight the urgent need for better PBC biomarkers.

关键词： Primary biliary cholangitis Antibodies Anti-mitochondrial antibodies Latin America Anti-smooth muscle antibodies

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