1,721,061 research outputs found
Incidence and role of Salmonella in seafood safety
No full textSeafood products are appreciated worldwide for their high nutritional value and are increasingly popular
among consumers. Consumer preferences range from fresh products, eaten raw or minimally processed, to
variously prepared (salted, smoked, cured, canned) and ready-to-eat (RTE) products. Moreover, seafood
products are a major food category in international trade and are frequently shipped very long distances. All
these factors expose seafood to various contaminants, including those of microbiological origins, such as
Salmonella. The presence of Salmonella in seafood may derive from contamination occurring in the natural
aquatic environment, in aquaculture or during processing. In addition, the isolation of Salmonella serovars that
are resistant and multiresistant to antibiotics continues to raise concerns. In this review various aspects
associated with the microbiological risk posed by the presence of Salmonella in seafood are examined. The
most recent data of incidence are presented, and some prevention and control strategies are considered
Attività in vitro e in macrofagi umani di claritromicina, etambutolo, amikacina, ciprofloxacina e rifampicina nei confronti di Mycobacterium avium.
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Efficacia disinfettante dell’acido peracetico (PAA), da solo o in combinazione con il cloro, nei confronti di Mycobacterium avium in acqua destinata al consumo umano
No full textSelective killing of Mycobacterium avium-infected macrophages by inhibition of phosphorylated signal transducer and activator of transcription type 1
No full textMycobacterium avium infects mononuclear phagocytes,
which thereby become reservoirs for this pathogen. Currently
recommended therapy does not ensure the eradication of intracellular
bacteria. Here, we report that M. avium infection in
macrophages activates the signal transducer and activator of
transcription type 1 (STAT-1) signaling pathway. Fludarabine,
an antileukemic drug active against cells that express
STAT-1, selectively kills M. avium–infected macrophages.
These findings suggest that phosphorylated STAT-1 can enhance
the survival of macrophages, promoting their role as
persistent reservoirs of M. avium. This work invites research
on new combination therapeutic approaches that consist of
fludarabine, to kill the macrophage reservoir, and antibacterial
agents, to eliminate mycobacteria released from the dead
cells
Valutazione dello stato igienico di un ammendante organico naturale ottenuto per compostaggio
No full textLa radiazione UV nella disinfezione dell’acqua. Acqua e salute per la popolazione
No full textRiflessioni della Water Decade 2005-215 e Giornate Mondiali dell'acqu
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