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https://www.readbyqxmd.com/read/28811343/comparative-genomics-of-escherichia-coli-isolated-from-skin-and-soft-tissue-and-other-extraintestinal-infections
#1
Amit Ranjan, Sabiha Shaik, Nishant Nandanwar, Arif Hussain, Sumeet K Tiwari, Torsten Semmler, Savita Jadhav, Lothar H Wieler, Munirul Alam, Rita R Colwell, Niyaz Ahmed
Escherichia coli, an intestinal Gram-negative bacterium, has been shown to be associated with a variety of diseases in addition to intestinal infections, such as urinary tract infections (UTIs), meningitis in neonates, septicemia, skin and soft tissue infections (SSTIs), and colisepticemia. Thus, for nonintestinal infections, it is categorized as extraintestinal pathogenic E. coli (ExPEC). It is also an opportunistic pathogen, causing cross infections, notably as an agent of zoonotic diseases. However, comparative genomic data providing functional and genetic coordinates for ExPEC strains associated with these different types of infections have not proven conclusive...
August 15, 2017: MBio
https://www.readbyqxmd.com/read/28804981/lipopolysaccharide-inhibits-hepatic-gluconeogenesis-in-rats-the-role-of-immune-cells
#2
Hiroshi Tanaka, Yoshikazu Nishikawa, Toru Fukushima, Ataru Taniguchi, Yoshihito Fujita, Kinsuke Tsuda, Nobuya Inagaki, Masaya Hosokawa
AIMS/INTRODUCTION: Bacterial septicemia has diverse clinical symptoms including severe hypoglycemia. However, sepsis-induced hypoglycemia has not yet been examined in detail. The aim of the present study is to investigate the mechanisms underlying hypoglycemia in sepsis. MATERIALS AND METHODS: We induced endotoxin shock in rats using lipopolysaccharide (LPS). After an intraperitoneal injection of LPS, we measured gluconeogenesis using the pyruvate tolerance test (PTT)...
August 14, 2017: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/28802520/an-analysis-of-long-term-ischemic-stroke-risk-in-survivors-of-septicemia
#3
Chun-An Cheng, Chun-Gu Cheng, Jiuun-Tay Lee, Hung-Che Lin, Cheng-Chung Cheng, Hung-Wen Chiu
INTRODUCTION: Sepsis increases the long-term incidence of ischemic stroke (IS). The chances for long-term IS in patients who are discharged after sepsis are unclear. Our aim was to demonstrate long-term risk chances of IS after septicemia discharge. We used a nomogram to identify those septicemia survivors with the higher risk of developing IS. METHODS: Inpatient data were used from the Taiwan Longitudinal Health Insurance Database, from 2001 to 2003. The event was IS rehospitalization after discharge of septicemia...
August 9, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28800764/lrp-a-global-regulator-regulates-the-virulence-of-vibrio-vulnificus
#4
Yu-Chi Ho, Feng-Ru Hung, Chao-Hui Weng, Wei-Ting Li, Tzu-Hung Chuang, Tsung-Lin Liu, Ching-Yuan Lin, Chien-Jung Lo, Chun-Liang Chen, Jen-Wei Chen, Masayuki Hashimoto, Lien-I Hor
BACKGROUND: An attenuated mutant (designated NY303) of Vibrio vulnificus, which causes serious wound infection and septicemia in humans, was isolated fortuitously from a clinical strain YJ016. This mutant was defective in cytotoxicity, migration on soft agar and virulence in the mouse. The purpose of this study was to map the mutation in this attenuated mutant and further explore how the gene thus identified is involved in virulence. METHODS: The whole genome sequence of mutant NY303 determined by next-generation sequencing was compared with that of strain YJ016 to map the mutations...
August 11, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/28798220/vascular-access-type-and-clinical-outcomes-among-elderly-patients-on-hemodialysis
#5
Timmy Lee, Mae Thamer, Qian Zhang, Yi Zhang, Michael Allon
BACKGROUND AND OBJECTIVES: The optimal type of initial permanent access for hemodialysis among the elderly is controversial. Duration of central venous catheter dependence, patient comorbidities, and life expectancy are important considerations in whether to place an arteriovenous fistula or graft. We used an observational study design to compare clinical outcomes in elderly patients who initiated hemodialysis with a central venous catheter and subsequently had an arteriovenous fistula or graft placed...
August 10, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28796785/low-renal-but-high-extrarenal-phenotype-variability-in-schimke-immuno-osseous-dysplasia
#6
Beata S Lipska-Ziętkiewicz, Jutta Gellermann, Olivia Boyer, Olivier Gribouval, Szymon Ziętkiewicz, Jameela A Kari, Mohamed A Shalaby, Fatih Ozaltin, Jiri Dusek, Anette Melk, Aysun K Bayazit, Laura Massella, Lidia Hyla-Klekot, Sandra Habbig, Astrid Godron, Maria Szczepańska, Beata Bieniaś, Dorota Drożdż, Rasha Odeh, Wioletta Jarmużek, Katarzyna Zachwieja, Agnes Trautmann, Corinne Antignac, Franz Schaefer
Schimke immuno-osseous dysplasia (SIOD) is a rare multisystem disorder with early mortality and steroid-resistant nephrotic syndrome (SRNS) progressing to end-stage kidney disease. We hypothesized that next-generation gene panel sequencing may unsurface oligosymptomatic cases of SIOD with potentially milder disease courses. We analyzed the renal and extrarenal phenotypic spectrum and genotype-phenotype associations in 34 patients from 28 families, the largest SMARCAL1-associated nephropathy cohort to date. In 11 patients the diagnosis was made unsuspectedly through SRNS gene panel testing...
2017: PloS One
https://www.readbyqxmd.com/read/28796076/factors-affecting-mortality-and-resource-use-for-hospitalized-patients-with-cirrhosis-a-population-based-study
#7
Phunchai Charatcharoenwitthaya, Ngamphol Soonthornworasiri, Khemajira Karaketklang, Kittiyod Poovorawan, Wirichada Pan-Ngum, Watcharasak Chotiyaputta, Tawesak Tanwandee, Kamthorn Phaosawasdi
Hospitalizations for advanced liver disease are costly and associated with significant mortality. This population-based study aimed to evaluate factors associated with in-hospital mortality and resource use for the management of hospitalized patients with cirrhosis.Mortality records and resource utilization for 52,027 patients hospitalized with cirrhosis and/or complications of portal hypertension (ascites, hepatic encephalopathy, variceal bleeding, spontaneous bacterial peritonitis, or hepatorenal syndrome) were extracted from a nationally representative sample of Thai inpatients covered by Universal Coverage Scheme during 2009 to 2013...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28791260/iron-acquisition-strategies-of-vibrio-anguillarum
#8
REVIEW
Yingjie Li, Qingjun Ma
The hemorrhagic septicemic disease vibriosis caused by Vibrio anguillarum shows noticeable similarities to invasive septicemia in humans, and in this case, the V. anguillarum-host system has the potential to serve as a model for understanding native eukaryotic host-pathogen interactions. Iron acquisition, as a fierce battle occurring between pathogenic V. anguillarum and the fish host, is a pivotal step for virulence. In this article, advances in defining the roles of iron uptake pathways in growth and virulence of V...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28783750/virulence-of-invasive-salmonella-typhimurium-st313-in-animal-models-of-infection
#9
Girish Ramachandran, Aruna Panda, Ellen E Higginson, Eugene Ateh, Michael M Lipsky, Sunil Sen, Courtney A Matson, Jasnehta Permala-Booth, Louis J DeTolla, Sharon M Tennant
Salmonella Typhimurium sequence type (ST) 313 produces septicemia in infants in sub-Saharan Africa. Although there are known genetic and phenotypic differences between ST313 strains and gastroenteritis-associated ST19 strains, conflicting data about the in vivo virulence of ST313 strains have been reported. To resolve these differences, we tested clinical Salmonella Typhimurium ST313 and ST19 strains in murine and rhesus macaque infection models. The 50% lethal dose (LD50) was determined for three Salmonella Typhimurium ST19 and ST313 strains in mice...
August 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28783429/characterization-of-livestock-associated-methicillin-resistant-staphylococcus-aureus-cc398-and-mecc-positive-cc130-from-zoo-animals-in-the-united-kingdom
#10
Alessio Bortolami, Ranieri Verin, Julian Chantrey, Michela Corrò, Ian Ashpole, Javier Lopez, Dorina Timofte
Little is known about the characteristics and diseases associated with methicillin-resistant Staphylococcus aureus (MRSA) in nondomestic animals. Four presumptive MRSA isolates, obtained from clinical (n = 3) and surveillance specimens (n = 1) from dwarf (Helogale parvula) and yellow mongooses (Cynictis penicillata) from a United Kingdom zoo, were analyzed by PCR for detection of mecA and mecC-mediated methicillin resistance, and virulence genes. Isolates were genotyped by multilocus sequence typing (MLST) and staphylococcal cassette chromosome mec (SCCmec) and spa sequence typing...
August 7, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28782998/evaluation-of-whole-genome-mapping-as-a-fast-and-automated-molecular-epidemiological-tool-for-the-study-of-cronobacter-spp-in-powdered-infant-formula-processing-facilities
#11
Yanjie Tang, Geertrui Rasschaert, Liping Yu, Claire Chilton, Leen Baert
Cronobacter has been identified as the causative agent of outbreaks or sporadic cases of meningitis, necrotizing enterocolitis, and septicemia associated with powdered infant formula. Food processing environments may provide a possible contamination route. The purpose of this study was to evaluate whole genome mapping (WGM) as a fast and automated molecular epidemiological method for characterizing Cronobacter spp. in the processing environment. This is the first study indicating the applicability of WGM to Cronobacter...
August 7, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28765251/severe-infection-in-antineutrophil-cytoplasmic-antibody-associated-vasculitis
#12
Aladdin J Mohammad, Mårten Segelmark, Rona Smith, Martin Englund, Jan-Åke Nilsson, Kerstin Westman, Peter A Merkel, David R W Jayne
OBJECTIVE: To compare the rate of severe infections after the onset of antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) with the rate in the background population, and to identify predictors of severe infections among patients with AAV. METHODS: The study cohort was 186 patients with AAV diagnosed from 1998 to 2010, consisting of all known cases in a defined population in southern Sweden. For each patient, 4 age- and sex-matched reference subjects were randomly chosen from the background population...
August 1, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28765219/genomic-dissection-of-an-icelandic-epidemic-of-respiratory-disease-in-horses-and-associated-zoonotic-cases
#13
Sigríður Björnsdóttir, Simon R Harris, Vilhjálmur Svansson, Eggert Gunnarsson, Ólöf G Sigurðardóttir, Kristina Gammeljord, Karen F Steward, J Richard Newton, Carl Robinson, Amelia R L Charbonneau, Julian Parkhill, Matthew T G Holden, Andrew S Waller
Iceland is free of the major infectious diseases of horses. However, in 2010 an epidemic of respiratory disease of unknown cause spread through the country's native horse population of 77,000. Microbiological investigations ruled out known viral agents but identified the opportunistic pathogen Streptococcus equi subsp. zooepidemicus (S. zooepidemicus) in diseased animals. We sequenced the genomes of 257 isolates of S. zooepidemicus to differentiate epidemic from endemic strains. We found that although multiple endemic clones of S...
August 1, 2017: MBio
https://www.readbyqxmd.com/read/28764655/a-case-report-primary-amoebic-meningoencephalitis-in-a-young-zambian-adult
#14
Mashina Chomba, Luchenga A Mucheleng'anga, Sombo Fwoloshi, Joseph Ngulube, Mable M Mutengo
BACKGROUND: Primary amoebic meningoencephalitis (PAM) is a fulminant disease of the brain caused by Naegleria fowleri. Although the disease is rare, the case fatality rate is very high. In this report, we describe the first case of PAM in Zambia. CASE PRESENTATION: The patient presented with sudden onset of seizures and fever on admission. On physical examination he was febrile, comatose and with a stiff neck. Cerebral spinal fluid (CSF) collected on admission did not reveal any organism on microscopy or culture but showed elevated white cell count...
August 1, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28760160/regional-variations-in-mortality-and-causes-of-death-in-israel-2009-2013
#15
Ethel-Sherry Gordon, Ziona Haklai, Jill Meron, Miriam Aburbeh, Inbal Weiss Salz, Yael Applbaum, Nehama F Goldberger
BACKGROUND: Regional variations in mortality can be used to study and assess differences in disease prevalence and factors leading to disease and mortality from different causes. To enable this comparison, it is important to standardize the mortality data to adjust for the effects of regional population differences in age, nationality and country of origin. METHODS: Standardized mortality ratios (SMR) were calculated for the districts and sub-districts in Israel, for total mortality by gender as well as for leading causes of death and selected specific causes...
August 1, 2017: Israel Journal of Health Policy Research
https://www.readbyqxmd.com/read/28759327/factors-of-pelvic-infection-and-death-in-patients-with-open-pelvic-fractures-and-rectal-injuries
#16
Wenhao Song, Dongsheng Zhou, Weicheng Xu, Guoming Zhang, Chunhui Wang, Daodi Qiu, Jinlei Dong
BACKGROUND: Open pelvic fractures associated with rectal injuries are uncommon. They often cause serious pelvic infection, even death. This combination of injuries has been reviewed infrequently. Herein, we report factors associated with pelvic infection and death in a group of patients with open pelvic fractures and concurrent rectal injuries. METHODS: We retrospectively reviewed the records of patients with open pelvic fractures and rectal injuries who were treated at our institution from January 2010-April 2014...
July 31, 2017: Surgical Infections
https://www.readbyqxmd.com/read/28756289/generation-of-a-recombinant-viral-hemorrhagic-septicemia-virus-vhsv-expressing-olive-flounder-paralichthys-olivaceus-interferon-%C3%AE-and-its-effects-on-type-i-interferon-response-and-virulence
#17
Jun Soung Kwak, Min Sun Kim, Ki Hong Kim
Rhabdoviruses including viral hemorrhagic septicemia virus (VHSV) are highly susceptible to type I interferon (IFN) responses, and IFN-γ that is belonging to the type II IFN has been known to enhance type I IFN responses in mammals. In this study, we generated a recombinant VHSV that can express olive flounder IFN-γ (rVHSV-A-IFNγ) using reverse genetics technology, and analyzed the effect of rVHSV-A-IFNγ infection on type I IFN response in Epithelioma papulosum cyprini (EPC) cells. Furthermore, the virulence of rVHSV-A-IFNγ was evaluated by infection to olive flounder (Paralichthys olivaceus)...
July 27, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28755261/acinetobacter-pittii-an-emerging-new-multi-drug-resistant-fish-pathogen-isolated-from-diseased-blunt-snout-bream-megalobrama-amblycephala-yih-in-china
#18
Jie Li, Jinglong Cao, Xu Wang, Ning Liu, Weimin Wang, Yi Luo
Despite the reason that genus Acinetobacter works as a grave human pathogen, very few numbers of researches have been done so that term it as a pathogen in respect to fish. As per the current study, isolation of three pathogenic bacterial strains was carried out from infected blunt snout bream (Megalobrama amblycephala Yih), from a farm in Yixing city, Jiangsu province, China, which displayed symptoms like tail-rot, shedding scales and ascites in addition to gentle ulceration on the entire body regardless of size and sex of fish...
July 28, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28754065/acute-disseminated-mycobacteriosis-in-captive-atlantic-guitarfish-rhinobatos-lentiginosus
#19
Kathryn A Tuxbury, Samuel A Young, Daniel S Bradway, Jamie L Marola, Max Salfinger, Michael M Garner
An adult female captive-born Atlantic guitarfish ( Rhinobatos lentiginosus) was found acutely moribund on exhibit and died soon after presentation. Abnormalities on autopsy were focal cutaneous erythema on the tail, a small liver, many variably sized friable ovarian follicles, and coelomic effusion. Histologic examination revealed systemic bacterial embolization, and yolk coelomitis with minimal associated inflammation and some mineralization. Bacterial culture of blood and coelomic effusion grew a rapidly growing Mycobacterium species that was further identified as Mycobacterium chelonae by PCR amplification and sequencing of the RNA polymerase subunit beta ( rpoB) gene of isolated genomic DNA...
July 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28749271/evaluation-of-husbandry-and-mortality-in-lesser-hedgehog-tenrecs-echinops-telfairi
#20
Tara M Harrison, Scott H Harrison
Causes of morbidity and mortality for various species of tenrecs have not been widely published, aside from several reports of neoplasia, and these data are crucial for advancing objectives for preventive medicine, diagnosis, and treatment. A survey on husbandry, morbidity, and mortality of lesser hedgehog tenrecs ( Echinops telfairi ) in Association of Zoos and Aquariums (AZA) institutions was conducted. Out of 32 institutions, 20 responded with data for 98 living and 93 dead animals. The most common causes of mortality among the dead animals were neoplasia (24%), hepatic lipidosis (11%), septicemia (8...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
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