Growth performance, haematological changes, immune response, antioxidant activity and disease resistance in rainbow trout (Oncorhynchus mykiss) fed diet supplemented with ellagic acid

Publication date: December 2019Source: Fish &Shellfish Immunology, Volume 95Author(s): Serpil Mişe YonarAbstractThe present study was performed to investigate the effects of various levels of dietary ellagic acid (EA) on growth performance, haematological values, immune response, protection against Yersinia ruckeri infection, and oxidant/antioxidant status in rainbow trout, Oncorhynchus mykiss. Fish were fed with the control diet and three different experimental diets containing three graded levels of EA (50, 100 and 200 mg kg−1 diet) for 8 weeks. At the end of the experiment, the growth performance [weight gain (WG), specific growth rate (SGR) and feed conversion ratio (FCR)], haematological values [the red blood cell (RBC) count, haemoglobin (Hb) concentration, haematocrit (Ht) level and erythrocyte indices: mean corpuscular volume (MCV), mean corpuscular haemoglobin (MCH) and mean corpuscular haemoglobin concentration (MCHC)], immune response [white blood cell (WBC) count, oxidative radical production (nitroblue tetrazolium (NBT) assay), phagocytic activity (PA) and phagocytic index (PI), total protein (TP) and immunoglobulin M (IgM) levels, serum bactericidal activity (BA), lysozyme (LYZ) and myeloperoxidase (MPO) activities] and oxidant/antioxidant status [tissue malondialdehyde (MDA) levels and superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH-Px) activities] were analysed. In addition, fish were challenged by Y. ruckeri and survi...
Source: Fish and Shellfish Immunology - Category: Biology Source Type: research

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We present the case of a 42-year-old male, who had previously traveled to an endemic plague area and then presented hyperpyrexia, hypotension, and inflammatory inguinal adenopathy. Despite the very characteristic clinical picture, nobody (before admission to our hospital) suspected plague. An effective combination of antibiotics and intensive treatment was initiated only on the fifth day of illness. The patient went into septic shock, respiratory failure, and death. Plague was confirmed by polymerase chain reaction (PCR). This case emphasizes the importance of having a high suspicion rate for plague. PMID: 31800948 [PubMed - in process]
Source: Revista Peruana de Medicina de Experimental y Salud Publica - Category: International Medicine & Public Health Tags: Rev Peru Med Exp Salud Publica Source Type: research
AbstractFeeding raw ‐meat‐based diets to companion animals has become a widespread practice, and many owners are now accustomed to buying frozen ingredients online. The goals of this study were to assess the microbiological quality of raw‐meat dog foods obtained from specialized websites and to evaluate the effec ts of storage at different temperatures for a few days. Twenty‐nine raw dog food products were processed for quantitative bacteriology (i.e. total viable count, TVC;Escherichia coli; faecal coliforms, FC) and sulphite ‐reducing clostridia, and analysed for the presence ofSalmonella spp.,Listeria monocyto...
Source: Journal of Animal Physiology and Animal Nutrition - Category: Zoology Authors: Tags: ORIGINAL ARTICLE Source Type: research
To examine maternal and fetal mortality, risk of maternal-fetal transmission, and other outcomes associated with Yersinia pestis infection in order to better understand the clinical implications of plague during pregnancy.
Source: American Journal of Obstetrics and Gynecology - Category: OBGYN Authors: Tags: IDSOG Abstract Source Type: research
kurnik One of the human- and animal-pathogenic species in genus Yersinia is Yersinia enterocolitica, a food-borne zoonotic pathogen that causes enteric infections, mesenteric lymphadenitis, and sometimes sequelae such as reactive arthritis and erythema nodosum. Y. enterocolitica is able to proliferate at 4 C, making it dangerous if contaminated food products are stored under refrigeration. The most common source of Y. enterocolitica is raw pork meat. Microbiological detection of the bacteria from food products is hampered by its slow growth rate as other bacteria overgrow it. Bacteriophages can be exploited in several ...
Source: Viruses - Category: Virology Authors: Tags: Review Source Type: research
ConclusionsThe findings of this research establish the efficacy of ethyl acetate leaf extract of this plant in treating diseases associated with pathogenic bacteria.
Source: European Journal of Integrative Medicine - Category: Complementary Medicine Source Type: research
Contributors : Christian Twittenhoff ; Vivian B Brandenburg ; Francesco Righetti ; Aaron M Nuss ; Axel Mosig ; Petra Dersch ; Franz NarberhausSeries Type : Expression profiling by high throughput sequencingOrganism : Yersinia pseudotuberculosisIn vivo probing of the Yersinia pseudotuberculosis YPIII transcriptome at 25 °C and 37 °C
Source: GEO: Gene Expression Omnibus - Category: Genetics & Stem Cells Tags: Expression profiling by high throughput sequencing Yersinia pseudotuberculosis Source Type: research
This study is aimed at offering an overview of the prevalence of Yersinia enterocolitica and related species in San Luis, Argentina, from samples of diverse origin received in our laboratory between 1984 and 2014, and providing an analysis of the distribution of Yersinia isolates according to their isolation sources, highlighting bioserotypes and potential reservoirs and vehicles of transmission to humans. From a total of 4572 samples of human, animal, food and environmental origins analyzed by traditional culture methods and molecular techniques, 229 (5%) samples were Yersinia positive. The highest frequency of Yersinia i...
Source: Food Microbiology - Category: Food Science Authors: Tags: Food Microbiol Source Type: research
Abstract To improve the preparedness against exposure to highly pathogenic bacteria and to anticipate the wide variety of bacteria that can cause bloodstream infections (BSIs), a safe, unbiased and highly accurate identification method was developed. Our liquid chromatography-tandem mass spectrometry (LC-MS/MS)-based method can identify highly pathogenic bacteria, their near-neighbors and bacteria that are common causes of BSIs directly from positive blood culture flasks. The developed Peptide-Based Microbe Detection Engine (http://proteome2pathogen.com) relies on a two-step workflow: a genus-level search followed...
Source: International Journal of Medical Microbiology - Category: Microbiology Authors: Tags: Int J Med Microbiol Source Type: research
Authors: Miletic S, Goessweiner-Mohr N, Marlovits TC Abstract The type III secretion system (T3SS) is an essential virulence factor of many pathogenic bacterial species including Salmonella, Yersinia, Shigella and enteropathogenic Escherichia coli (EPEC). It is an intricate molecular machine that spans the bacterial membranes and injects effector proteins into target host cells, enabling bacterial infection. The T3SS needle complex comprises of proteinaceous rings supporting a needle filament which extends out into the extracellular environment. It serves as the central conduit for translocating effector proteins. ...
Source: Current Topics in Microbiology and Immunology - Category: Microbiology Tags: Curr Top Microbiol Immunol Source Type: research
Publication date: Available online 31 October 2019Source: Veterinary MicrobiologyAuthor(s): Dan Liu, Yongqiang Yang, Ju Gu, Hongmei Tuo, Ping Li, Xianjun Xie, Guang-xu Ma, Jinxin Liu, Anyun ZhangAbstractMultidrug-resistant and hypervirulent Klebsiella pneumoniae (hvKP) poses a significant risk to public health. To better understand the molecular characteristics of multidrug-resistant and hypervirulent K. pneumoniae of animal origin, fifteen K. pneumoniae strains from the liver, blood of sick pigs and chicken feces were collected. All K. pneumoniae isolates were subjected to antimicrobial susceptibility testing, string test...
Source: Veterinary Microbiology - Category: Veterinary Research Source Type: research
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