PubRank

N J Legakis

Author PubWeight™ 117.95‹?›

Top papers

Rank Title Journal Year PubWeight™‹?›
1 CTX-M-type beta-lactamases: an emerging group of extended-spectrum enzymes. Int J Antimicrob Agents 2000 4.55
2 VIM-1 Metallo-beta-lactamase-producing Klebsiella pneumoniae strains in Greek hospitals. J Clin Microbiol 2003 2.98
3 Two novel plasmid-mediated cefotaxime-hydrolyzing beta-lactamases (CTX-M-5 and CTX-M-6) from Salmonella typhimurium. FEMS Microbiol Lett 1998 2.68
4 Multicenter evaluation of epidemiological typing of methicillin-resistant Staphylococcus aureus strains by repetitive-element PCR analysis. The European Study Group on Epidemiological Markers of the ESCMID. J Clin Microbiol 2000 2.28
5 Prevalence of a transferable SHV-5 type beta-lactamase in clinical isolates of Klebsiella pneumoniae and Escherichia coli in Greece. J Antimicrob Chemother 1990 2.20
6 Hospital outbreak of multiple clones of Pseudomonas aeruginosa carrying the unrelated metallo-beta-lactamase gene variants blaVIM-2 and blaVIM-4. J Antimicrob Chemother 2003 1.97
7 Outbreak of multiple clones of imipenem-resistant Acinetobacter baumannii isolates expressing OXA-58 carbapenemase in an intensive care unit. J Antimicrob Chemother 2006 1.94
8 Spread of a Salmonella typhimurium clone resistant to expanded-spectrum cephalosporins in three European countries. J Clin Microbiol 1999 1.79
9 Serum is the preferred clinical specimen for diagnosis of human brucellosis by PCR. J Clin Microbiol 2001 1.63
10 Multiresistant serotype O 12 Pseudomonas aeruginosa: evidence for a common strain in Europe. Epidemiol Infect 1989 1.53
11 Emergence of multidrug resistance in ubiquitous and dominant Pseudomonas aeruginosa serogroup O:11. The Greek Pseudomonas Aeruginosa Study Group. J Clin Microbiol 1998 1.46
12 Extended-spectrum beta-lactamase types in Klebsiella pneumoniae and Escherichia coli in two Greek hospitals. Int J Antimicrob Agents 2003 1.46
13 Expanded-spectrum cephalosporin resistance in non-typhoid Salmonella. Int J Antimicrob Agents 2004 1.45
14 Effect of substitution of Asn for Arg-276 in the cefotaxime-hydrolyzing class A beta-lactamase CTX-M-4. FEMS Microbiol Lett 1998 1.43
15 Molecular epidemiology of ampicillin-resistant clinical isolates of Salmonella enteritidis. J Clin Microbiol 1994 1.40
16 Molecular epidemiology of antibiotic resistance of Salmonella enteritidis during a 7-year period in Greece. J Clin Microbiol 1997 1.39
17 Emergence of resistance to third-generation cephalosporins amongst Salmonella typhimurium isolates in Greece: report of the first three cases. J Antimicrob Chemother 1998 1.39
18 Discrepancies and interpretation problems in susceptibility testing of VIM-1-producing Klebsiella pneumoniae isolates. J Clin Microbiol 2005 1.33
19 Reduced susceptibility to vancomycin of nosocomial isolates of methicillin-resistant Staphylococcus aureus. J Antimicrob Chemother 1999 1.31
20 On the incidence of antibiotic resistance among aerobic gram-negative rods isolated in Greek hospitals. J Hosp Infect 1993 1.28
21 First report of Cryptococcus laurentii meningitis and a fatal case of Cryptococcus albidus cryptococcaemia in AIDS patients. Med Mycol 1998 1.27
22 Spread of efflux pump-overexpressing, non-metallo-beta-lactamase-producing, meropenem-resistant but ceftazidime-susceptible Pseudomonas aeruginosa in a region with blaVIM endemicity. J Antimicrob Chemother 2005 1.26
23 Resistance mechanisms of multiresistant serotype 012 Pseudomonas aeruginosa isolated in Europe. J Antimicrob Chemother 1990 1.26
24 Spread of integron-associated VIM-type metallo-beta-lactamase genes among imipenem-nonsusceptible Pseudomonas aeruginosa strains in Greek hospitals. J Clin Microbiol 2003 1.24
25 Comparative evaluation of the inhibitory activities of the novel penicillanic acid sulfone Ro 48-1220 against beta-lactamases that belong to groups 1, 2b, and 2be. Antimicrob Agents Chemother 1997 1.22
26 Sequence of pNL194, a 79.3-kilobase IncN plasmid carrying the blaVIM-1 metallo-beta-lactamase gene in Klebsiella pneumoniae. Antimicrob Agents Chemother 2010 1.18
27 Multiple clones within multidrug-resistant Salmonella enterica serotype Typhimurium phage type DT104. The Greek Nontyphoidal Salmonella Study Group. J Clin Microbiol 2000 1.15
28 Identification of Malassezia species from patient skin scales by PCR-RFLP. Clin Microbiol Infect 2002 1.13
29 Characterization of In111, a class 1 integron that carries the extended-spectrum beta-lactamase gene blaIBC-1. FEMS Microbiol Lett 2003 1.10
30 Pseudomonas aeruginosa: evidence for the involvement of lipopolysaccharide in determining outer membrane permeability to carbenicillin and gentamicin. J Infect Dis 1985 1.09
31 High prevalence of stably derepressed class-I beta-lactamase expression in multiresistant clinical isolates of Enterobacter cloacae from Greek hospitals. J Med Microbiol 1992 1.09
32 Sporadic emergence of Klebsiella pneumoniae strains resistant to cefepime and cefpirome in Greek hospitals. J Clin Microbiol 1998 1.08
33 Serotypes of Pseudomonas aeruginosa in clinical specimens in relation to antibiotic susceptibility. J Clin Microbiol 1982 1.07
34 A molecular analysis of Greek and UK Haemophilus influenzae conjugative resistance plasmids. J Antimicrob Chemother 1997 1.04
35 Diversity of resistance phenotypes and plasmid analysis in multi-resistant 0:12 Pseudomonas aeruginosa. Eur J Epidemiol 1992 1.03
36 Importance of carbenicillin and gentamicin cross-resistant serotype 0:12 Pseudomonas aeruginosa in six Athens hospitals. Eur J Clin Microbiol 1987 1.01
37 Molecular typing of multidrug-resistant Salmonella Blockley outbreak isolates from Greece. Emerg Infect Dis 2000 1.01
38 Interaction between Clostridium difficile and polymorphonuclear leucocytes from the elderly and post-operative cancer patients: phagocytosis and bactericidal function. Med Microbiol Immunol 1984 1.00
39 Inositol as a selective substrate for the growth of Klebsiellae and Serratiae. Zentralbl Bakteriol Orig A 1976 0.99
40 Extended-spectrum beta-lactamase-producing Klebsiella pneumoniae in a neonatal intensive care unit in the high-prevalence area of Athens, Greece. J Clin Microbiol 2002 0.98
41 First report of Cryptococcus neoformans var. gattii serotype B from Greece. Med Mycol 2001 0.97
42 Risk factors for nosocomial infections caused by gram-negative bacilli. The Hellenic Antibiotic Resistance Study Group. J Hosp Infect 1996 0.96
43 Repeated occurrence of diverse extended-spectrum beta-lactamases in minor serotypes of food-borne Salmonella enterica subsp. enterica. J Clin Microbiol 2005 0.96
44 Oral pseudomembranous candidiasis, herpes simplex virus-1 infection, and oral mucositis in head and neck cancer patients receiving radiotherapy and granulocyte-macrophage colony-stimulating factor (GM-CSF) mouthwash. J Oral Pathol Med 2001 0.96
45 Detrimental effect of the combination of R164S with G238S in TEM-1 beta-lactamase on the extended-spectrum activity conferred by each single mutation. J Antimicrob Chemother 2000 0.95
46 Susceptibility testing of Haemophilus influenzae--an international collaborative study in quality assessment. J Antimicrob Chemother 1996 0.95
47 Infrequent detection of acquired metallo-beta-lactamases among carbapenem-resistant Pseudomonas isolates in a Greek hospital. Clin Microbiol Infect 2003 0.95
48 Bacterial resistance to ciprofloxacin in Greece: results from the National Electronic Surveillance System. Greek Network for the Surveillance of Antimicrobial Resistance. Emerg Infect Dis 1999 0.94
49 CTX-m-3 beta-lactamase-producing Escherichia coli from Greece. Microb Drug Resist 2002 0.94
50 Antibiotic resistance rates and macrolide resistance phenotypes of viridans group streptococci from the oropharynx of healthy Greek children. Int J Antimicrob Agents 2001 0.94
51 Characterization to species level of Mycobacterium avium complex strains from human immunodeficiency virus-positive and -negative patients. J Clin Microbiol 1997 0.93
52 GES-13, a beta-lactamase variant possessing Lys-104 and Asn-170 in Pseudomonas aeruginosa. Antimicrob Agents Chemother 2010 0.93
53 Antibiotic resistance of clinical isolates of Streptococcus pneumoniae in Greece. J Clin Microbiol 1994 0.92
54 The ongoing challenge of acquired carbapenemases: a hospital outbreak of Klebsiella pneumoniae simultaneously producing VIM-1 and KPC-2. Int J Antimicrob Agents 2010 0.92
55 A common clone of erythromycin-resistant Streptococcus pneumoniae in Greece and the UK. Clin Microbiol Infect 2003 0.92
56 Emergence of Serratia liquefaciens and Klebsiella oxytoca with metallo-beta-lactamase-encoding IncW plasmids: further spread of the blaVIM-1-carrying integron In-e541. Int J Antimicrob Agents 2008 0.91
57 Structural alterations in the envelope of a gentamicin-resistant rough mutant of Pseudomonas aeruginosa. Ann Microbiol (Paris) 1985 0.90
58 Distinct genotypic clusters of heterogeneously and homogeneously methicillin-resistant Staphylococcus aureus from a Greek hospital. Eur J Clin Microbiol Infect Dis 1997 0.90
59 Multicentre survey of the in-vitro activity of seven antimicrobial agents, including ertapenem, against recently isolated Gram-negative anaerobic bacteria in Greece. Clin Microbiol Infect 2005 0.89
60 Identification of medically significant fungal genera by polymerase chain reaction followed by restriction enzyme analysis. FEMS Immunol Med Microbiol 1999 0.89
61 Rapid extraction of fungal DNA from clinical samples for PCR amplification. Med Mycol 1999 0.89
62 Rapid discrimination of Mycobacterium avium strains from AIDS patients by randomly amplified polymorphic DNA analysis. J Clin Microbiol 1997 0.89
63 A multi-centre study of nosocomial methicillin-resistant Staphylococcus aureus in Greece. Greek MRSA Study Group. Int J Antimicrob Agents 1999 0.88
64 Pseudomonas aeruginosa folliculitis due to non-O:11 serogroups: acquisition through use of contaminated synthetic sponges. Clin Infect Dis 1995 0.88
65 Detecting VIM-1 production in Proteus mirabilis by an imipenem-dipicolinic acid double disk synergy test. J Clin Microbiol 2009 0.87
66 Thin-layer chromatographic technique for rapid detection of bacterial phospholipases. J Clin Microbiol 1975 0.87
67 Paediatric AIDS--related linear gingival erythema: a form of erythematous candidiasis? J Oral Pathol Med 1999 0.87
68 Streptococcus agalactiae: a vaginal pathogen? J Med Microbiol 1996 0.86
69 Epidemiology of community-acquired Pseudomonas aeruginosa infections in children. Eur J Clin Microbiol Infect Dis 1996 0.85
70 An electronic network for the surveillance of antimicrobial resistance in bacterial nosocomial isolates in Greece. The Greek Network for the Surveillance of Antimicrobial Resistance. Bull World Health Organ 1999 0.85
71 In vitro activity of cefpirome against selected clinical enterobacterial isolates with beta-lactamase-mediated resistance. Infection 1996 0.85
72 Substitution of Arg-244 by Cys or Ser in SHV-1 and SHV-5 beta-lactamases confers resistance to mechanism-based inhibitors and reduces catalytic efficiency of the enzymes. FEMS Microbiol Lett 1998 0.83
73 Prevalence of a plasmid-mediated type II dihydrofolate reductase gene among trimethoprim-resistant urinary pathogens in Greek hospitals. J Antimicrob Chemother 1992 0.83
74 Serologic prevalence of coxsackievirus group B in Greece. Viral Immunol 2007 0.83
75 Increased adherence to human epithelial cells of resistant Pseudomonas aeruginosa strains. J Infect 1980 0.83
76 Prospective use of RFLP analysis on amplified Cryptococcus neoformans URA5 gene sequences for rapid identification of varieties and serotypes in clinical samples. Med Mycol 2001 0.82
77 Diversity among high-level aminoglycoside-resistant enterococci. J Antimicrob Chemother 2000 0.82
78 Selective medium for growth of Proteus. J Clin Microbiol 1975 0.82
79 Prevalence of the type I and type II DHFR genes in trimethoprim-resistant urinary isolates of Escherichia coli from Greece. J Antimicrob Chemother 1993 0.81
80 Antibacterial activity of HR-756, cefoxitin and cefuroxine against multiply antibiotic-resistant strains of Enterobacteriaceae and Pseudomonas aeruginosa. Chemotherapy 1980 0.81
81 Multiresistant Acinetobacter baumannii isolates in intensive care units in Greece. Clin Microbiol Infect 2003 0.81
82 Cultural factors influencing the utilization or production of acetate by Butyrivibrio fibrisolvens. J Gen Microbiol 1976 0.81
83 Faecal bile acids in patients with colon cancer. Zentralbl Bakteriol Mikrobiol Hyg B 1982 0.80
84 Aspartic acid for asparagine substitution at position 276 reduces susceptibility to mechanism-based inhibitors in SHV-1 and SHV-5 beta-lactamases. J Antimicrob Chemother 1999 0.80
85 Distribution of coagulase-negative staphylococci in human infections. J Hosp Infect 1981 0.80
86 Evaluation of an anti-PBP 2a slide latex agglutination test in coagulase-negative staphylococci isolated in Greek hospitals. Diagn Microbiol Infect Dis 2002 0.79
87 Prevalence of emm types 1 and 12 from invasive Streptococcus pyogenes disease in Greece--results of enhanced surveillance. Clin Microbiol Infect 2008 0.79
88 In-vitro activity of ciprofloxacin against clinical isolates of mycobacteria resistant to antimycobacterial drugs. J Antimicrob Chemother 1985 0.79
89 Effect of the pH and osmolality of urine on the antibacterial activity of gentamicin. J Antimicrob Chemother 1983 0.79
90 Properties of mutant SHV-5 beta-lactamases constructed by substitution of isoleucine or valine for methionine at position 69. Antimicrob Agents Chemother 1998 0.78
91 Cross-resistance of clinical isolates of Pseudomonas aeruginosa to five aminoglycosides. J Antimicrob Chemother 1979 0.78
92 Bacterioides fragilis: production and sensitivity to bacteriocins. Anaerobe 2006 0.78
93 Resistance to beta-lactams among blood isolates of Salmonella spp. in European hospitals: results from the SENTRY Antimicrobial Surveillance Program 1997-98. Clin Microbiol Infect 2003 0.78
94 Changing patterns of bacterial nosocomial infections: a nine-year study in a general hospital. Chemotherapy 1997 0.78
95 Serotypes and antimicrobial susceptibilities of 1033 pneumococci isolated from children in Greece during 2001-2004. Clin Microbiol Infect 2006 0.78
96 Serotype, biotype and genomic DNA XbaI restriction fragment analysis of Yersinia enterocolitica, isolated from infected beta-thalassemic and nonthalassemic children in Greece. Clin Microbiol Infect 2000 0.78
97 Performance of methods for detection of extended-spectrum beta-lactamases applied to clinical enterobacterial strains producing IBC-type beta-lactamases. J Clin Microbiol 2003 0.77
98 Fecal neutral sterols in patients with colon cancer. Oncology 1982 0.77
99 Mupirocin resistance in Staphylococcus aureus from Greek hospitals. Int J Antimicrob Agents 2001 0.77
100 Subtyping and antifungal susceptibilities of Candida spp. in the intensive care unit of a Greek general hospital. Int J Antimicrob Agents 2001 0.77
101 Anaerobic bacteria in dentoalveolar abscesses. Int J Oral Maxillofac Surg 1986 0.77
102 Coxsackievirus B3 sequences in the myocardium of fatal cases in a cluster of acute myocarditis in Greece. J Clin Pathol 2005 0.76
103 Relationship of antibiotic resistance phenotype to the R-pyocin susceptibility pattern in clinical isolates of Pseudomonas aeruginosa. J Chemother 1989 0.76
104 Predominance of two M-types among erythromycin-resistant group A Streptococci from Greek children. Clin Microbiol Infect 2003 0.76
105 Alterations to the oropharyngeal and nasopharyngeal microbial flora of children after tonsillectomy and adenoidectomy. J Laryngol Otol 1994 0.76
106 Sequences from the aspergillopepsin PEP gene of Aspergillus fumigatus: evidence on their use in selective PCR identification of Aspergillus species in infected clinical samples. FEMS Immunol Med Microbiol 1999 0.76
107 Frequency and epidemiologic associations of different types of vaginitis in symptomatic women in Greece. Eur J Clin Microbiol 1986 0.76
108 Variation in morphological response of resistant clinical isolates of Pseudomonas aeruginosa to carbenicillin. Eur J Clin Microbiol 1983 0.76
109 In vitro comparative assessment of beta-lactamase inhibitors and their penicillin combinations against selected enterobacteria. Int J Antimicrob Agents 1997 0.76
110 Differentiation of Serratia marcescens and Serratia liquefaciens by tests for lipase and phospholipase production. J Med Microbiol 1978 0.75
111 Use of inhaled ampicillin-sulbactam against multiresistant Acinetobacter baumannii in bronchial secretions of intensive care unit patients. Clin Microbiol Infect 2004 0.75
112 Prevalence of human T-cell lymphotropic virus-I/II-indeterminate reactivities in a Greek blood bank population. Transfus Med 2004 0.75
113 First report of ampicillin and glycopeptide resistant Enterococcus faecium VanA bacteraemia in Greece. Int J Antimicrob Agents 2000 0.75
114 The effect of ionizing irradiation on the oxidation of palmitate-1-14C by thymus and liver. Radiat Res 1968 0.75
115 Faecal bacterial flora in patients with colon cancer and control subjects. Zentralbl Bakteriol Mikrobiol Hyg A 1981 0.75
116 Outer membrane proteins in a carbenicillin-resistant strain of Pseudomonas aeruginosa. Ann Microbiol (Paris) 1983 0.75
117 Lipid composition of Escherichia coli in relation to resistance to penicillin. Can J Microbiol 1978 0.75
118 The effect of ionizing irradiation on the lipid biosynthesis by thymus and liver. Radiat Res 1968 0.75
119 Investigation of possible cytokine induction in peripheral blood mononuclear cells by heat-stable serotypes of Campylobacter jejuni. Clin Microbiol Infect 2005 0.75
120 Enhanced chemotaxis to gentamicin-resistant strains of Pseudomonas aeruginosa. J Infect Dis 1980 0.75
121 Chlamydia trachomatis infections in Greece: first prevalence study using nucleic acid amplification tests. Eur J Clin Microbiol Infect Dis 2005 0.75
122 Comparison of in vitro activities of eight new beta-lactam compounds against cephalothin-resistant Enterobacteriaceae from hospital patients. Chemotherapy 1984 0.75
123 In vitro sensitivity of Proteus organisms to gentamicin and sisomicin. Chemotherapy 1979 0.75
124 Direct quantitative determination of acidic end products in clinical specimens for presumptive diagnosis of anaerobic infections. Ann Microbiol (Paris) 1983 0.75
125 Unusual nosocomial infection due to Pseudomonas aeruginosa. J Hosp Infect 2002 0.75
126 Comparative in vitro activity of netilmicin, amikacin, tobramycin and sisomicin against gentamicin highly-resistant enterobacteriaceae. Chemotherapy 1980 0.75
127 Interaction of beta-lactam antibiotics against Gram-negative bacteria. J Antimicrob Chemother 1981 0.75
128 Trimethoprim-sulphamethoxazole synergy against Gram-negative bacilli. J Hosp Infect 1984 0.75
129 In vitro activity of ticarcillin, carbenicillin and ampicillin against some gram-negative bacilli. J Antibiot (Tokyo) 1975 0.75
130 Gradual increase in the minimum inhibitory concentration of penicillin among both susceptible and resistant Streptococcus pneumoniae isolates from Greek children during 1995-1997. Int J Antimicrob Agents 1999 0.75
131 Oral lesions in children with perinatally acquired human immunodeficiency virus infection. J Oral Pathol Med 1999 0.75
132 Diversity of aminoglycoside resistance in Enterobacter cloacae in Greece. Eur J Clin Microbiol Infect Dis 1992 0.75
133 Comparative activities of three new antibacterial agents with aztreonam against gram-negative bacilli. Chemioterapia 1987 0.75
134 Comparison of Mycobacterium avium isolates from Greek AIDS and human immunodeficiency virus-negative patients by pulsed-field gel electrophoresis. Clin Microbiol Infect 2000 0.75
135 Penicillin resistant Streptococcus pneumoniae isolated from infected children in Athens, Greece: resistance patterns, serotypes and penicillin-binding protein 2B mutation characterization by PCR. Int J Antimicrob Agents 2002 0.75
136 Pneumococcal acute otitis media in children. Clin Microbiol Infect 2000 0.75
137 In vitro activity of cefetamet against enterobacteria expressing an SHV-5-type beta-lactamase. Chemotherapy 1997 0.75
138 Survey of aminoglycoside resistance patterns. Chemioterapia 1986 0.75
139 The direct immunofluorescence in the presumptive identification of Bacteroides species. Zentralbl Bakteriol Mikrobiol Hyg A 1982 0.75
140 Exposure effects of netilmicin on Enterobacter cloacae clinical isolates. Chemotherapy 1992 0.75
141 Phagocytosis and antimicrobicidal activity of polymorphonuclear leucocytes against gentamicin-sensitive and resistant strains of Pseudomonas aeruginosa. J Infect 1983 0.75
142 Outer surface changes of Pseudomonas aeruginosa in relation to resistance to gentamicin and carbenicillin. J Med Microbiol 1985 0.75
143 Conversion of glucose to lipids by normal and leukemic leukocytes. Cancer Res 1967 0.75
144 Clinical microbiological case: facial inflammation in a child with a subnormal serum concentration of IgG2. Clin Microbiol Infect 2002 0.75
145 Staphylococci--the cause of hospital infections in an orthopedic department. Chemioterapia 1987 0.75
146 Enhanced in-vitro activity of liposome-trapped penicillin-G against Pseudomonas aeruginosa. J Chemother 1990 0.75
147 Variable antifungal susceptibility of wild-type Candida albicans phenotypes from neutropenic hosts. Eur J Clin Microbiol Infect Dis 1996 0.75
148 In vitro activity of loracarbef against TEM extended-spectrum beta-lactamase-producing Escherichia coli strains and its interaction with the enzymes. Chemotherapy 1998 0.75
149 Resistance pattern of Streptococcus pneumoniae in children during a four-year period in Greece. Eur J Clin Microbiol Infect Dis 1998 0.75