M Vaara

Author PubWeight™ 119.77‹?›

Top papers

Rank Title Journal Year PubWeight™‹?›
1 Molecular basis of bacterial outer membrane permeability. Microbiol Rev 1985 17.75
2 Polycations sensitize enteric bacteria to antibiotics. Antimicrob Agents Chemother 1983 3.33
3 Polycations as outer membrane-disorganizing agents. Antimicrob Agents Chemother 1983 3.06
4 Characterization of the lipopolysaccharide from the polymyxin-resistant pmrA mutants of Salmonella typhimurium. FEBS Lett 1981 2.91
5 Sensitization of Gram-negative bacteria to antibiotics and complement by a nontoxic oligopeptide. Nature 1983 2.84
6 BRCT domain-containing protein TopBP1 functions in DNA replication and damage response. J Biol Chem 2001 2.60
7 Increased outer membrane resistance to ethylenediaminetetraacetate and cations in novel lipid A mutants. J Bacteriol 1981 2.19
8 Lipopolysaccharides of polymyxin B-resistant mutants of Escherichia coli are extensively substituted by 2-aminoethyl pyrophosphate and contain aminoarabinose in lipid A. Mol Microbiol 1995 1.94
9 Decreased binding of polymyxin by polymyxin-resistant mutants of Salmonella typhimurium. J Bacteriol 1979 1.82
10 Outer membrane permeability barrier disruption by polymyxin in polymyxin-susceptible and -resistant Salmonella typhimurium. Antimicrob Agents Chemother 1981 1.79
11 Increased substitution of phosphate groups in lipopolysaccharides and lipid A of the polymyxin-resistant pmrA mutants of Salmonella typhimurium: a 31P-NMR study. Mol Microbiol 1994 1.79
12 New Salmonella typhimurium mutants with altered outer membrane permeability. J Bacteriol 1984 1.76
13 The lipid A biosynthesis mutation lpxA2 of Escherichia coli results in drastic antibiotic supersusceptibility. Antimicrob Agents Chemother 1992 1.75
14 Safety of probiotics that contain lactobacilli or bifidobacteria. Clin Infect Dis 2003 1.72
15 Susceptibility of gram-negative bacteria to polymyxin B nonapeptide. Antimicrob Agents Chemother 1984 1.67
16 Binding of polymyxin B nonapeptide to gram-negative bacteria. Antimicrob Agents Chemother 1985 1.67
17 An outer membrane-disorganizing peptide PMBN sensitizes E. coli strains to serum bactericidal action. J Immunol 1984 1.62
18 Postural balance in a random sample of 7,979 subjects aged 30 years and over. Gerontology 2006 1.61
19 The outer membrane permeability-increasing action of deacylpolymyxins. J Antibiot (Tokyo) 1991 1.52
20 Two improved methods for obtaining axenic cultures of cyanobacteria. Appl Environ Microbiol 1979 1.48
21 First isolations of KPC-2-carrying ST258 Klebsiella pneumoniae strains in Finland, June and August 2009. Euro Surveill 2009 1.31
22 rfaP mutants of Salmonella typhimurium. Eur J Biochem 1989 1.31
23 vanA and vanB incorporate into an endemic ampicillin-resistant vancomycin-sensitive Enterococcus faecium strain: effect on interpretation of clonality. J Clin Microbiol 1999 1.28
24 Effect of small cationic leukocyte peptides (defensins) on the permeability barrier of the outer membrane. Infect Immun 1988 1.27
25 Report of four cases of Yersinia pseudotuberculosis septicemia and a literature review. Eur J Clin Microbiol Infect Dis 1995 1.26
26 Effects of a 6-month exercise program on patients with multiple sclerosis: a randomized study. Neurology 2004 1.25
27 Distribution of streptococcal inhibitor of complement variants in pharyngitis and invasive isolates in an epidemic of serotype M1 group A Streptococcus infection. J Infect Dis 2001 1.23
28 The novel hexapeptide motif found in the acyltransferases LpxA and LpxD of lipid A biosynthesis is conserved in various bacteria. FEBS Lett 1994 1.17
29 Salmonella typhimurium and Escherichia coli mutants with increased outer membrane permeability to hydrophobic compounds. Biochim Biophys Acta 1989 1.17
30 Molecular characterization of methicillin-resistant Staphylococcus epidermidis strains from bacteraemic patients. Clin Microbiol Infect 2008 1.15
31 Clinical "pneumococcal pneumonia" due to Moraxella osloensis: case report and a review. Scand J Infect Dis 2001 1.09
32 New 16-plex PCR method for rapid detection of diarrheagenic Escherichia coli directly from stool samples. Eur J Clin Microbiol Infect Dis 2009 1.09
33 Mutants carrying conditionally lethal mutations in outer membrane genes omsA and firA (ssc) are phenotypically similar, and omsA is allelic to firA. J Bacteriol 1992 1.08
34 Isolation, cloning, and primary structure of a cationic 16-kDa outer membrane protein of Salmonella typhimurium. J Biol Chem 1989 1.07
35 Increased resistance among Staphylococcus epidermidis isolates in a large teaching hospital over a 12-year period. Eur J Clin Microbiol Infect Dis 1996 1.05
36 Neonatal Candida parapsilosis outbreak with a high case fatality rate. Pediatr Infect Dis J 1995 1.05
37 Increased substitution of phosphate groups in lipopolysaccharides and lipid A of polymyxin-resistant mutants of Salmonella typhimurium and Escherichia coli. Prog Clin Biol Res 1995 1.04
38 Identification and sequence analysis of the gene mutated in the conditionally lethal outer membrane permeability mutant SS-C of Salmonella typhimurium. EMBO J 1991 1.04
39 Chain length heterogeneity of lipopolysaccharide released from Salmonella typhimurium by ethylenediaminetetraacetic acid or polycations. Eur J Biochem 1986 1.02
40 Ultrastructure of the cell wall of a Synechocystis strain. Can J Microbiol 1980 1.01
41 Polyamines as constituents of the outer membranes of Escherichia coli and Salmonella typhimurium. J Bacteriol 1991 1.00
42 The Ssc protein of enteric bacteria has significant homology to the acyltransferase Lpxa of lipid A biosynthesis, and to three acetyltransferases. FEBS Lett 1991 0.99
43 Capnocytophaga canimorsus septicemia: fifth report of a cat-associated infection and five other cases. Eur J Clin Microbiol Infect Dis 1995 0.99
44 Persistence of a multiresistant clone of Staphylococcus epidermidis in a neonatal intensive-care unit for a four-year period. Clin Infect Dis 1995 0.97
45 Overgrowth of Enterococcus faecium in the feces of patients with hematologic malignancies. Clin Infect Dis 1996 0.96
46 Analysis of polyamines as their dabsyl derivatives by reversed-phase high-performance liquid chromatography. Anal Biochem 1987 0.96
47 Bacterial 'histone-like protein I' (HLP-I) is an outer membrane constituent? FEBS Lett 1990 0.96
48 Comparison of repetitive extragenic palindromic sequence-based PCR with PCR ribotyping and pulsed-field gel electrophoresis in studying the clonality of Clostridium difficile. Clin Microbiol Infect 2011 0.93
49 Levofloxacin does not decrease mortality in Staphylococcus aureus bacteraemia when added to the standard treatment: a prospective and randomized clinical trial of 381 patients. J Intern Med 2006 0.93
50 Comparison of the phenotypes of the lpxA and lpxD mutants of Escherichia coli. FEMS Microbiol Lett 1995 0.93
51 Complete sequence of the ompH gene encoding the 16-kDa cationic outer membrane protein of Salmonella typhimurium. Gene 1990 0.92
52 Susceptibility of gram-negative bacteria to the synergistic bactericidal action of serum and polymyxin B nonapeptide. Can J Microbiol 1986 0.91
53 Bacteremia caused by Brevibacterium species in an immunocompromised patient. Eur J Clin Microbiol Infect Dis 1995 0.90
54 The outer membrane as the penetration barrier against mupirocin in gram-negative enteric bacteria. J Antimicrob Chemother 1992 0.90
55 Comparison of risk factors and outcome in patients with Enterococcus faecalis vs Enterococcus faecium bacteraemia. Scand J Infect Dis 1998 0.90
56 Interleukin 1 receptor antagonist and E-selectin concentrations: a comparison in patients with severe acute pancreatitis and severe sepsis. J Crit Care 1999 0.89
57 Antifungal susceptibility and virulence attributes of bloodstream isolates of Candida from Hong Kong and Finland. Mycopathologia 2011 0.89
58 Preferential synthesis of heptaacyl lipopolysaccharide by the ssc permeability mutant of Salmonella typhimurium. Eur J Biochem 1992 0.88
59 Evaluation of a commercial MRSA assay when multiple MRSA strains are causing epidemics. Eur J Clin Microbiol Infect Dis 2009 0.87
60 Intramucosal pH and endotoxin and cytokine release in severe acute pancreatitis. Shock 2000 0.87
61 Polymyxin B octapeptide and polymyxin B heptapeptide are potent outer membrane permeability-increasing agents. J Antibiot (Tokyo) 1992 0.86
62 In vitro activity of antifungal azoles against Helicobacter pylori. Eur J Clin Microbiol Infect Dis 1992 0.86
63 Quantitative antimicrobial susceptibility testing of outer membrane-altered mutant bacteria by the E test. J Antimicrob Chemother 1993 0.85
64 Clonality behind the increase of multidrug-resistance among non-invasive pneumococci in Southern Finland. Eur J Clin Microbiol Infect Dis 2011 0.85
65 The ompH gene of Yersinia enterocolitica: cloning, sequencing, expression, and comparison with known enterobacterial ompH sequences. J Bacteriol 1991 0.85
66 Molecular mimickry between HLA B27 and Yersinia, Salmonella, Shigella and Klebsiella within the same region of HLA alpha 1-helix. Clin Exp Immunol 1991 0.84
67 Methanol extracts LPS from deep rough bacteria. Biochem Biophys Res Commun 1996 0.84
68 Effect of Ssc protein mutations on the outer membrane permeability barrier function in Salmonella typhimurium: a study using ssc mutant alleles made by site-directed mutagenesis. FEMS Microbiol Lett 1992 0.83
69 Emergence of extended-spectrum beta-lactamase-producing Escherichia coli and Klebsiella pneumoniae during the years 2000 and 2004 in Helsinki, Finland. Clin Microbiol Infect 2010 0.82
70 The outer membrane of lipid A-deficient Escherichia coli mutant LH530 has reduced levels of OmpF and leaks periplasmic enzymes. Microbiology 1997 0.82
71 Nosocomial bloodstream infections in children: an 8-year experience at a tertiary-care hospital in Finland. Clin Microbiol Infect 2008 0.82
72 Reversible binding of Salmonella typhimurium lipopolysaccharides by immobilized protamine. Eur J Biochem 1987 0.82
73 Costs of an outbreak of meticillin-resistant Staphylococcus aureus. J Hosp Infect 2007 0.81
74 Effect of bacterial lipopolysaccharide on serum high density lipoprotein cholesterol in rabbits. Atherosclerosis 1984 0.81
75 Defective biosynthesis of the lipid A component of temperature-sensitive firA (omsA) mutant of Escherichia coli. Eur J Biochem 1993 0.81
76 First isolation of Clostridium difficile PCR ribotype 027 in Finland. Euro Surveill 2007 0.80
77 Primary structure and expression of the Ssc-protein of Salmonella typhimurium. Biochem Biophys Res Commun 1990 0.80
78 Poor antibacterial effect of ropivacaine: comparison with bupivacaine. Anesthesiology 1999 0.80
79 Plasma endotoxin and cytokine levels in neutropenic and non-neutropenic bacteremic patients. Eur J Clin Microbiol Infect Dis 1995 0.78
80 Phosphate groups in lipopolysaccharides of Salmonella typhimurium rfaP mutants. FEBS Lett 1997 0.78
81 Effective inhibition of cardiolipin-binding antibodies in gram-negative infections by bacterial lipopolysaccharide. Scand J Immunol 1988 0.78
82 Plasma interleukin-8, interleukin-10, and E-selectin levels in neutropenic and non-neutropenic bacteremic patients. Eur J Clin Microbiol Infect Dis 1997 0.78
83 Comparative activity of rifabutin and rifampicin against gram-negative bacteria that have damaged or defective outer membranes. J Antimicrob Chemother 1993 0.78
84 The nucleotide and deduced amino acid sequence of the cationic 19 kDa outer membrane protein OmpH of Yersinia pseudotuberculosis. Biochim Biophys Acta 1991 0.78
85 LPS greatly enhances the antibody response to hapten-polysaccharide conjugates, but not to hapten-protein conjugates. Ann Immunol (Paris) 1983 0.78
86 The lipid A biosynthesis deficiency of the Escherichia coli antibiotic-supersensitive mutant LH530 is suppressed by a novel locus, ORF195. Microbiology 1997 0.77
87 Chemical structure of the lipid A component of lipopolysaccharides of the genus Pectinatus. Eur J Biochem 1994 0.77
88 Effect of bacterial lipopolysaccharide on serum lipids and on the development of aortic atherosclerosis in rabbits. Atherosclerosis 1986 0.77
89 Low levels of cytokines and endotoxin in a fatal case of myocardial depression and septic shock due to Yersinia pseudotuberculosis. Scand J Infect Dis 1995 0.75
90 Infection, anticardiolipin and thrombosis. Scand J Rheumatol Suppl 1987 0.75
91 [Yersinia Pseudotuberculosis, a rare cause of septicemia]. Duodecim 1996 0.75
92 [Penicillin-resistant pneumococci are coming--are you prepared?]. Duodecim 1994 0.75
93 An empirical investigation of the 'Biopsychosocial Disease Consequence model': psychological impairment, disability and handicap in chronic pain patients. Disabil Rehabil 1995 0.75
94 [Postpartum gas gangrene]. Duodecim 1993 0.75
95 Outer membrane permeability of the antibiotic-supersusceptible lipid A mutants of Escherichia coli to hydrophobic steroid probes. J Antimicrob Chemother 1999 0.75
96 [Sources for antibacterial drugs are not drying up]. Duodecim 1998 0.75