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https://www.readbyqxmd.com/read/28619802/draft-genome-sequences-of-extended-spectrum-beta-lactamase-producing-morganella-morganii-strains-aa1-and-av1-isolated-from-a-freshwater-lake-and-eicchorniacrassipes-roots
#1
Pushpa Lata, Subramaniam S Govindarajan, Feng Qi, Jian-Liang Li, Santosh K Maurya, Malaya K Sahoo
Two strains of Morganella morganii, AA1 and AV1, were isolated from freshwater and Eicchornia crassipes roots, respectively. Here, we report their draft genome sequences, which are ~3.6 Mb and have 51% G+C content. The predicted coding sequences (3,259 for strain AA1 and 3,345 for strain AV1) encode beta-lactamases, transpeptidases, and penicillin-binding proteins.
June 15, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28600898/investigation-of-acid-phosphatase-variants-for-the-synthesis-of-phosphate-monoesters
#2
Gábor Tasnádi, Michaela Zechner, Mélanie Hall, Kai Baldenius, Klaus Ditrich, Kurt Faber
The major drawback of using phosphatases for transphosphorylation reactions lies in product depletion caused by the natural hydrolytic activity of the enzymes. Variants of PhoC-Mm from Morganella morganii and NSAP-Eb from Escherichia blattae were studied for their ability to maintain a high product level in the transphosphorylation of various primary alcohols. A single amino acid exchange delivered phosphatase variant PhoC-Mm G92D, which was able to catalyze the phosphorylation of primary alcohols without any major hydrolysis of the formed phosphate esters...
June 10, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/28600633/igm-mediated-autoimmune-responses-to-oxidative-specific-epitopes-but-not-nitrosylated-adducts-are-significantly-decreased-in-pregnancy-association-with-bacterial-translocation-perinatal-and-lifetime-major-depression-and-the-tryptophan-catabolite-trycat-pathway
#3
Chutima Roomruangwong, Buranee Kanchanatawan, Sunee Sirivichayakul, George Anderson, André F Carvalho, Sebastien Duleu, Michel Geffard, Michael Maes
Immunoglubulin (Ig)M responses directed to oxidative specific epitopes (OSEs) and nitric oxide (NO)-adducts are significantly associated with major depression and physio-somatic symptoms. End of term serum IgM responses to OSEs and NO-adducts were assayed in pregnant women with (n = 24) and without prenatal depression (n = 25) as well as in 24 non-pregnant women. Associations of IgM/IgA responses to Gram-negative gut commensal bacteria (leaky gut index) and IgA/IgM responses to tryptophan catabolites (TRYCATs) were analyzed...
June 9, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28586429/hafnia-an-enterobacterial-genus-naturally-resistant-to-colistin-revealed-by-three-susceptibility-testing-methods
#4
Aurélie Jayol, Marion Saly, Patrice Nordmann, Armelle Ménard, Laurent Poirel, Véronique Dubois
Objectives: To determine the susceptibility to colistin of Hafnia alvei and Hafnia paralvei , and to compare methods for colistin resistance detection in the Hafnia genus. Methods: A collection of 25 Hafnia isolates was studied. Species were identified by using 16S rRNA gene sequencing with subsequent phylogeny analysis. Susceptibility to colistin was determined using the broth microdilution (BMD) reference method, the Phoenix automated system, the Rapid Polymyxin NP test, the Etest system and the disc diffusion method...
June 6, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28572256/mutational-signatures-in-breast-cancer-the-problem-at-the-dna-level
#5
EDITORIAL
Serena Nik-Zainal, Sandro Morganella
A breast cancer genome is a record of the historic mutagenic activity that has occurred throughout the development of the tumor. Indeed, every mutation may be informative. Although driver mutations were the main focus of cancer research for a long time, passenger mutational signatures, the imprints of DNA damage and DNA repair processes that have been operative during tumorigenesis, are also biologically illuminating. This review is a chronicle of how the concept of mutational signatures arose and brings the reader up-to-date on this field, particularly in breast cancer...
June 1, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28561169/-adequate-antibiotic-prophylaxis-and-therapy-of-periprosthetic-infections-of-the-breast-review-of-468-consecutive-implant-removals
#6
Jörn Andreas Lohmeyer, Mai Alawadi, Philipp Alexander Bergmann, Daniel Schmauss, Klaus Stephan Wittig
Background Periprosthetic infections are feared complications in aesthetic as well as in reconstructive breast surgery. The purpose of our study was to evaluate our institution's specific culture data and to identify most common organisms and suitable antibiotics for prophylaxis and first line treatment in implant-based breast surgery. Patients and Methods We analyzed all patients with a change or removal of breast implants in the period from 01.01.2012 to 31.12.2015 retrospectively. Based on the medical records, the surgical indications were identified and specifically analyzed for signs of infection and capsular fibrosis...
April 2017: Handchirurgie, Mikrochirurgie, Plastische Chirurgie
https://www.readbyqxmd.com/read/28559163/a-cost-saving-strategy-for-processing-isolated-uropathogens-in-community-acquired-urinary-tract-infections
#7
Juan Manuel Sánchez-Calvo, José Luís de Francisco, Eva Torres-Martos, Juan Carlos Alados Arboledas, Maria Dolores López Prieto
Outpatient urine samples are among the most commonly processed in a microbiology laboratory, which involves a high economic burden. The aim of this study was compare cost and efficiency to process uropathogens between MicroScan system (2010-2011) versus a chromogenic medium and the disk diffusion method (2013-2014). In the first period, a total 9918 bacterial populations were isolated from urine samples. Annual estimated costs during 2010 and 2011 for processing were EUR 53,818 and EUR 57,306, respectively (EUR 111,124 total)...
May 27, 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/28555403/dissemination-of-bla-oxa-370-gene-among-several-enterobacteriaceae-species-in-brazil
#8
C M Magagnin, F P Rozales, L Antochevis, L S Nunes, A S Martins, A L Barth, J M Sampaio, A P Zavascki
OXA-370 is a recently described OXA-48 variant that has only been described in a few Enterobacter spp. and Klebsiella pneumoniae isolates. The purpose of this study is to assess the prevalence of OXA-370-producing isolates in carbapenem-nonsusceptible Enterobacteriaceae recovered from 28 hospitals from Brazil. Real-time PCR was used to determine the presence of bla NDM-1, bla KPC-2, bla VIM-type, bla GES-type, bla OXA-48-like, and bla IMP-type genes. A total of 4,451 Enterobacteriaceae were screened. The gene bla OXA-48-like was detected in 74 (2...
May 30, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28458670/gut-microbiota-species-can-provoke-both-inflammatory-and-tolerogenic-immune-responses-in-human-dendritic-cells-mediated-by-retinoic-acid-receptor-alpha-ligation
#9
Krisztian Bene, Zsofia Varga, Viktor O Petrov, Nadiya Boyko, Eva Rajnavolgyi
Dendritic cells are considered as the main coordinators of both mucosal and systemic immune responses, thus playing a determining role in shaping the outcome of effector cell responses. However, it is still uncovered how primary human monocyte-derived DC (moDC) populations drive the polarization of helper T (Th) cells in the presence of commensal bacteria harboring unique immunomodulatory properties. Furthermore, the individual members of the gut microbiota have the potential to modulate the outcome of immune responses and shape the immunogenicity of differentiating moDCs via the activation of retinoic acid receptor alpha (RARα)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28446177/the-susceptibility-to-fosfomycin-of-gram-negative-bacteria-isolates-from-urinary-tract-infection-in-the-czech-republic-data-from-a-unicentric-study
#10
Miroslav Fajfr, Miroslav Louda, Pavla Paterová, Lenka Ryšková, Jaroslav Pacovský, Josef Košina, Helena Žemličková, Miloš Broďák
BACKGROUND: Against a background of rapid increase of β-lactamase-producing or multi-resistant pathogenic bacteria and the resulting lack of effective antibiotic treatment, some older antibiotics have been tested for new therapeutic uses. One of these is fosfomycin, to which according to studies these resistant bacteria are very sensitive. Our study was designed because there is no data on the fosfomycin susceptibility rate in the Czech Republic. METHOD: In this study from January 2013 to June 2014 3295 unique isolates of Gram-negative bacteria which had caused urinary tract infections were examined...
April 26, 2017: BMC Urology
https://www.readbyqxmd.com/read/28435889/multidrug-resistance-salmonella-genomic-island-1-in-a-morganella-morganii-subsp-morganii-human-clinical-isolate-from-france
#11
Eliette Schultz, Olivier Barraud, Jean-Yves Madec, Marisa Haenni, Axel Cloeckaert, Marie-Cécile Ploy, Benoît Doublet
Salmonella genomic island 1 (SGI1) is a multidrug resistance integrative mobilizable element that harbors a great diversity of antimicrobial resistance gene clusters described in numerous Salmonella enterica serovars and also in Proteus mirabilis. A serious threat to public health was revealed in the recent description in P. mirabilis of a SGI1-derivative multidrug resistance island named PGI1 (Proteus genomic island 1) carrying extended-spectrum-β-lactamase (ESBL) and metallo-β-lactamase resistance genes, blaVEB-6 and blaNDM-1, respectively...
March 2017: MSphere
https://www.readbyqxmd.com/read/28404984/giant-iliopsoas-abscess-caused-by-morganella-morganii
#12
Mikio Nakajima, Masamitsu Shirokawa, Yasuhiko Miyakuni, Tomotsugu Nakano, Hideaki Goto
BACKGROUND While uncommon, iliopsoas abscesses can become the underlying cause of a fever of unknown origin. Even in such cases, it is considered rare for an iliopsoas abscess to extend into the subcutaneous space. CASE REPORT A 74-year-old woman with a history of schizophrenia was referred to our hospital with a high-grade fever. The patient was unaware of her febrile status prior to admission. There was no previous hospital admission. Examination revealed a non-tender mass in the lower right back that the patient had been aware of for approximately 1 month...
April 13, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28395682/wound-infection-secondary-to-snakebite
#13
M Wagener, M Naidoo, C Aldous
BACKGROUND: Snakebites can produce severe local and systemic septic complications as well as being associated with significant overall morbidity and even mortality. OBJECTIVE: A prospective audit was undertaken to determine the bacterial causation of wound infection secondary to snakebite, and attempt to quantify the burden of disease. METHODS: The audit was undertaken at Ngwelezane Hospital, which provides both regional and tertiary services for north-eastern KwaZulu-Natal Province, South Africa, over a 4-month period...
March 29, 2017: South African Medical Journal, Suid-Afrikaanse Tydskrif Vir Geneeskunde
https://www.readbyqxmd.com/read/28387353/characterization-and-genomic-analyses-of-two-newly-isolated-morganella-phages-define-distant-members-among-tevenvirinae-and-autographivirinae-subfamilies
#14
Hugo Oliveira, Graça Pinto, Ana Oliveira, Jean-Paul Noben, Hanne Hendrix, Rob Lavigne, Małgorzata Łobocka, Andrew M Kropinski, Joana Azeredo
Morganella morganii is a common but frequent neglected environmental opportunistic pathogen which can cause deadly nosocomial infections. The increased number of multidrug-resistant M. morganii isolates motivates the search for alternative and effective antibacterials. We have isolated two novel obligatorily lytic M. morganii bacteriophages (vB_MmoM_MP1, vB_MmoP_MP2) and characterized them with respect to specificity, morphology, genome organization and phylogenetic relationships. MP1's dsDNA genome consists of 163,095 bp and encodes 271 proteins, exhibiting low DNA (<40%) and protein (<70%) homology to other members of the Tevenvirinae...
April 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28367029/biofilm-colonization-in-chronic-treatment-refractory-infections-presenting-with-discharging-sinuses-a-study-in-a-tertiary-care-hospital-of-eastern-india
#15
Asmita De, Hirak Jyoti Raj, Jayeeta Haldar, Poulami Mukherjee, Prasanta Kumar Maiti
INTRODUCTION: Treatment refractory chronic recurrent infections mean those chronic infections which recur by same causal agents with similar drug responsiveness after apparent relief following full course of recommended antimicrobial management. MATERIALS AND METHODS: Fifty different samples were collected from patients with chronic surgical site infections, laparoscopic port site infections, anal fistula, mesh hernioplasty, chronic dacryocystitis, chronic osteomyelitis, and chronic burn wounds...
April 2017: Journal of Laboratory Physicians
https://www.readbyqxmd.com/read/28360373/successful-treatment-of-pd-peritonitis-due-to-morganella-morganii-resistant-to-third-generation-cephalosporins-a-case-report
#16
Vaibhav Keskar, Mohan Biyani, Syed Obaid Amin, Greg Knoll
Morganella morganii is a rare cause of peritonitis in patients on peritoneal dialysis (PD). Most of the reported cases have resorted to a switch to hemodialysis. We herein report a case of peritonitis due to M. morganii resistant to third-generation cephalosporins, which was treated successfully with intraperitoneal (IP) tobramycin followed by oral ciprofloxacin. Early microbiologic diagnosis is essential in the treatment of peritonitis from rare microorganisms such as Morganella morganii, and appropriate antibiotic therapy is the key to avoiding catheter loss and subsequent switch to hemodialysis...
March 2017: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
https://www.readbyqxmd.com/read/28348950/a-case-of-sulfhemoglobinemia-in-a-child-with-chronic-constipation
#17
Ashish George, Danielle Goetz
Sulfhemoglobinemia is a rare condition in which a sulfur atom oxidizes the heme moiety in hemoglobin, making the hemoglobin incapable of carrying oxygen and leading to hypoxia and cyanosis. This condition has been described in patients taking sulfur medications or who have cultured hydrogen sulfide producing intestinal bacteria such as Morganella morganii. This case describes a pediatric patient who was found to have cyanosis on two occasions of urinary tract infection in the setting of chronic constipation, with confirmed sulfhemoglobinemia during the second admission...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28288110/hrdetect-is-a-predictor-of-brca1-and-brca2-deficiency-based-on-mutational-signatures
#18
Helen Davies, Dominik Glodzik, Sandro Morganella, Lucy R Yates, Johan Staaf, Xueqing Zou, Manasa Ramakrishna, Sancha Martin, Sandrine Boyault, Anieta M Sieuwerts, Peter T Simpson, Tari A King, Keiran Raine, Jorunn E Eyfjord, Gu Kong, Åke Borg, Ewan Birney, Hendrik G Stunnenberg, Marc J van de Vijver, Anne-Lise Børresen-Dale, John W M Martens, Paul N Span, Sunil R Lakhani, Anne Vincent-Salomon, Christos Sotiriou, Andrew Tutt, Alastair M Thompson, Steven Van Laere, Andrea L Richardson, Alain Viari, Peter J Campbell, Michael R Stratton, Serena Nik-Zainal
Approximately 1-5% of breast cancers are attributed to inherited mutations in BRCA1 or BRCA2 and are selectively sensitive to poly(ADP-ribose) polymerase (PARP) inhibitors. In other cancer types, germline and/or somatic mutations in BRCA1 and/or BRCA2 (BRCA1/BRCA2) also confer selective sensitivity to PARP inhibitors. Thus, assays to detect BRCA1/BRCA2-deficient tumors have been sought. Recently, somatic substitution, insertion/deletion and rearrangement patterns, or 'mutational signatures', were associated with BRCA1/BRCA2 dysfunction...
April 2017: Nature Medicine
https://www.readbyqxmd.com/read/28271652/impact-of-revised-broad-spectrum-cephalosporin-clinical-and-laboratory-standards-institute-breakpoints-on-susceptibility-in-enterobacteriaceae-producing-ampc-%C3%AE-lactamase
#19
Ki Ho Park, Yong Pil Chong, Sung Han Kim, Sang Oh Lee, Mi Suk Lee, Heungsup Sung, Mi Na Kim, Yang Soo Kim, Jun Hee Woo, Sang Ho Choi
We evaluated the impact of revised Clinical and Laboratory Standards Institute (CLSI) breakpoints for broad-spectrum cephalosporins (BSCs) on the susceptibilities of 1,742 isolates of Enterobacter species, Serratia marcescens, Citrobacter freundii, and Morganella morganii. The 2011 CLSI criteria for cefotaxime and ceftazidime reduced the rates of susceptibility by 2.9% and 5.9%, respectively. The 2014 CLSI criteria for cefepime reduced the rate of susceptibility by 13.9%, and categorized 11.8% isolates as susceptible-dose dependent (SDD) for cefepime...
March 2017: Infection & Chemotherapy
https://www.readbyqxmd.com/read/28245252/very-high-prevalence-of-extended-spectrum-beta-lactamase-producing-enterobacteriaceae-in-bacteriemic-patients-hospitalized-in-teaching-hospitals-in-bamako-mali
#20
Samba Adama Sangare, Emilie Rondinaud, Naouale Maataoui, Almoustapha Issiaka Maiga, Ibrehima Guindo, Aminata Maiga, Namory Camara, Oumar Agaly Dicko, Sounkalo Dao, Souleymane Diallo, Flabou Bougoudogo, Antoine Andremont, Ibrahim Izetiegouma Maiga, Laurence Armand-Lefevre
The worldwide dissemination of extended-spectrum beta-lactamase producing Enterobacteriaceae, (ESBL-E) and their subset producing carbapenemases (CPE), is alarming. Limited data on the prevalence of such strains in infections from patients from Sub-Saharan Africa are currently available. We determined, here, the prevalence of ESBL-E/CPE in bacteriemic patients in two teaching hospitals from Bamako (Mali), which are at the top of the health care pyramid in the country. During one year, all Enterobacteriaceae isolated from bloodstream infections (E-BSI), were collected from patients hospitalized at the Point G University Teaching Hospital and the pediatric units of Gabriel Touré University Teaching Hospital...
2017: PloS One
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