Occurrence of Plasmid-Mediated Quinolone Resistance Determinants andrmtBGene inSalmonella entericaSerovar Enteritidis and Typhimurium Isolated from Food-Animal Products in Tunisia

2013 ◽  
Vol 10 (9) ◽  
pp. 813-819 ◽  
Author(s):  
Nazek Al-Gallas ◽  
Mohamed Salah Abbassi ◽  
Becher Gharbi ◽  
Molka Manai ◽  
Mohamed N. Ben Fayala ◽  
...  
Author(s):  
A.N. Pampura ◽  
E.E. Varlamov

Продукты животного происхождения обладают наиболее сбалансированным комплексом необходимых нутриентов, поэтому их включение в пищевой рацион оправданно в различные возрастные периоды. Клинические проявления аллергии к данным продуктам крайне разнообразны. Одним из ключевых аспектов обозначенной проблемы является диагностика и оценка вероятности развития перекрестной реактивности. К пищевым продуктам животного происхождения, наиболее часто индуцирующим симптомы, относятся коровье молоко, куриное яйцо, рыба, моллюски, ракообразные, мясо млекопитающих. В представленной статье изложены данные об основных классах пищевых аллергенов животного происхождения, индуцирующих развитие перекрестных аллергических реакций. Описаны синдромы, связанные с перекрестной реактивностью: птица-яйцо , кошка-свинина , рыба-курица и -Gal-синдром/ синдром красного мяса .Animal foods products contain the most balanced complex of essential nutrients. The clinical manifestations of allergy to these products are varied. Key aspect of this problem is diagnostics and assessment of cross-reactivity. The food animal products that more often induce symptoms include cows milk, hens egg, fish, mollusks, crustaceans, mammalian meat. Data on the main classes of food animal allergens inducing the development of cross-allergic reactions as well as syndromes associated with cross-reactivity like bird-egg , cat-pork , fish-chicken and a-Gal-syndrome/ red meat syndrome are described in this article.


2014 ◽  
Vol 143 (2) ◽  
pp. 376-384 ◽  
Author(s):  
Y. LIU ◽  
L.-G. WAN ◽  
Q. DENG ◽  
X.-W. CAO ◽  
Y. YU ◽  
...  

SUMMARYA total of 180 non-duplicate carbapenem-resistant Klebsiella pneumoniae isolates were recovered from patients hospitalized between December 2010 and January 2012 at a Chinese hospital. Eight KPC-2, four NDM-1, one VIM-2, and five KPC-2 plus IMP-4 producers were identified and all were multidrug resistant due to the presence of other resistance determinants, including extended-spectrum β-lactamases (CTX-M-15, SHV-12), 16S rRNA methylases (armA, rmtB) and plasmid-mediated quinolone-resistance determinants (qnrA, B, S, aac(6′)-Ib-cr). Nine K. pneumoniae clones (Kpn-A1/ST395, Kpn-A3/ST11, Kpn-A2/ST134, Kpn-B/ST263, Kpn-C/ST37, Kpn-D/ST39, Kpn-E/ST1151, Kpn-F/ST890, Kpn-G/ST1153) were identified. blaKPC-2 was located on transferable ~65 kb IncL/M (ST395, ST11, ST134, ST39) and ~100 kb IncA/C (ST37, ST1153, ST890) plasmids, respectively. On the other hand, blaNDM-1 was associated with a ~70 kb IncA/C plasmid (ST263). However, non-typable plasmids of ~40 kb containing blaVIM-2 were detected in the ST1151 clone. This work reports the first co-occurrence of four diverse types of carbapenemase of K. pneumoniae clones from a single hospital in China. IncA/C, IncL/M, and other successful plasmids may be important for the dissemination of carbapenemases, producing a complex epidemiological picture.


2013 ◽  
Vol 108 (7) ◽  
pp. 924-927 ◽  
Author(s):  
Giovanna Rincon Cruz ◽  
Marcela Radice ◽  
Samantha Sennati ◽  
Lucia Pallecchi ◽  
Gian María Rossolini ◽  
...  

Author(s):  
Orsolya Szabó ◽  
Dániel Gulyás ◽  
Nikolett Szabó ◽  
Katalin Kristóf ◽  
Béla Kocsis ◽  
...  

2019 ◽  
Vol 25 (5) ◽  
pp. 681-689 ◽  
Author(s):  
Yang Liu ◽  
Fang-ling Du ◽  
Tian-xin Xiang ◽  
La-Gen Wan ◽  
Dan-dan Wei ◽  
...  

2006 ◽  
Vol 50 (11) ◽  
pp. 3861-3866 ◽  
Author(s):  
Ying-Tsong Chen ◽  
Hung-Yu Shu ◽  
Ling-Hui Li ◽  
Tsai-Lien Liao ◽  
Keh-Ming Wu ◽  
...  

ABSTRACT A plasmid containing the qnrS quinolone resistance determinant and the gene encoding the SHV-2 β-lactamase has been discovered from a clinical Klebsiella pneumoniae strain isolated in Taiwan. The complete 98-kb sequence of this plasmid, designated pK245, was determined by using a whole-genome shotgun approach. Transfer of pK245 conferred low-level resistance to fluoroquinolones in electroporant Escherichia coli epi300. The sequence of the immediate region surrounding qnrS in pK245 is nearly identical (>99% identity) to those of pAH0376 from Shigella flexneri and pINF5 from Salmonella enterica serovar Infantis, the two other qnrS-carrying plasmids reported to date, indicating a potential common origin. Other genes conferring resistance to aminoglycosides (aacC2, strA, and strB), chloramphenicol (catA2), sulfonamides (sul2), tetracycline (tetD), and trimethoprim (dfrA14) were also detected in pK245. The dfrA14 gene is carried on a class I integron. Several features of this plasmid, including three separate regions containing putative replicons, a partitioning-control system, and a type II restriction modification system, suggest that it may be able to replicate and adapt in a variety of hosts. Although no critical conjugative genes were detected, multiple insertion sequence elements were found scattered throughout pK245, and these may facilitate the dissemination of the antimicrobial resistance determinants. We conclude that pK245 is a chimera which acquired its multiple antimicrobial resistance determinants horizontally from different sources. The identification of pK245 plasmid expands the repertoire of the coexistence of quinolone and extended-spectrum-β-lactam resistance determinants in plasmids carried by various species of the family Enterobacteriaceae in different countries.


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