P
Pietro E. Varaldo
Researcher at Marche Polytechnic University
Publications - 153
Citations - 5918
Pietro E. Varaldo is an academic researcher from Marche Polytechnic University. The author has contributed to research in topics: Streptococcus pyogenes & Teicoplanin. The author has an hindex of 42, co-authored 153 publications receiving 5467 citations.
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Journal ArticleDOI
Antimicrobial properties of N-carboxybutyl chitosan.
Riccardo A.A. Muzzarelli,R. Tarsi,O Filippini,Eleonora Giovanetti,G Biagini,Pietro E. Varaldo +5 more
TL;DR: Examination by electron microscopy showed that microbial cells exposed to N-carboxybutyl chitosan underwent marked morphological alterations, which are of importance in defining the suitability of N- carboxy butyl ch itosan as a wound dressing.
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Antibiotic Resistance Related to Biofilm Formation in Klebsiella pneumoniae.
TL;DR: This review will summarize the findings about the antibiotic resistance related to biofilm formation in K. pneumoniae.
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Phenotypes and genotypes of erythromycin-resistant Streptococcus pyogenes strains in Italy and heterogeneity of inducibly resistant strains.
TL;DR: The inducible character of the resistance of the iMLS strains was confirmed by comparing the clindamycin MICs determined under normal testing conditions and those determined after induction by pregrowth in 0.05 μg of erythromycin per ml.
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Characterization of poxtA, a novel phenicol-oxazolidinone-tetracycline resistance gene from an MRSA of clinical origin.
Alberto Antonelli,Marco Maria D'Andrea,Andrea Brenciani,Cesira Galeotti,Cesira Galeotti,Gianluca Morroni,Simona Pollini,Pietro E. Varaldo,Gian Maria Rossolini +8 more
TL;DR: A novel resistance gene, named poxtA, encoding a protein of the antibiotic resistance (ARE) ABC-F lineage, was identified in the genome of an MRSA of clinical origin and can confer decreased susceptibility to phenicols, oxazolidinones and tetracyclines.
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Quantitative PCR and RT-PCR in Virology
Massimo Clementi,Stefano Menzo,Patrizia Bagnarelli,Aldo Manzin,Anna Valenza,Pietro E. Varaldo +5 more
TL;DR: PCR is the method of choice for the detection of viral nucleic acids present at very low amounts in biological samples, and it allows the molecular study of most acute and persistent viral infections.