F J Schmitz

Author PubWeight™ 105.68‹?›

Top papers

Rank Title Journal Year PubWeight™‹?›
1 Survey of infections due to Staphylococcus species: frequency of occurrence and antimicrobial susceptibility of isolates collected in the United States, Canada, Latin America, Europe, and the Western Pacific region for the SENTRY Antimicrobial Surveillance Program, 1997-1999. Clin Infect Dis 2001 9.59
2 Class 1 integrons, gene cassettes, mobility, and epidemiology. Eur J Clin Microbiol Infect Dis 1999 3.76
3 Emergence of heterogeneous intermediate vancomycin resistance in Staphylococcus aureus isolates in the Düsseldorf area. J Antimicrob Chemother 1999 3.42
4 Class I integrons in Gram-negative isolates from different European hospitals and association with decreased susceptibility to multiple antibiotic compounds. J Antimicrob Chemother 1998 3.21
5 Antimicrobial susceptibility and frequency of occurrence of clinical blood isolates in Europe from the SENTRY antimicrobial surveillance program, 1997 and 1998. Clin Infect Dis 2000 2.87
6 Epidemiology and susceptibility of 3,051 Staphylococcus aureus isolates from 25 university hospitals participating in the European SENTRY study. J Clin Microbiol 2001 2.62
7 Prevalence of gyrA, gyrB, parC, and parE mutations in clinical isolates of Streptococcus pneumoniae with decreased susceptibilities to different fluoroquinolones and originating from Worldwide Surveillance Studies during the 1997-1998 respiratory season. Antimicrob Agents Chemother 2000 2.57
8 Molecular detection of antimicrobial resistance. Clin Microbiol Rev 2001 2.31
9 In-vivo transfer of mecA DNA to Staphylococcus aureus [corrected]. Lancet 2001 2.14
10 Many class I integrons comprise distinct stable structures occurring in different species of Enterobacteriaceae isolated from widespread geographic regions in Europe. Antimicrob Agents Chemother 1999 1.75
11 Distribution of the antiseptic resistance genes qacA, qacB and qacC in 497 methicillin-resistant and -susceptible European isolates of Staphylococcus aureus. J Antimicrob Chemother 2001 1.59
12 Characteristics of a new epidemic MRSA in Germany ancestral to United Kingdom EMRSA 15. Int J Med Microbiol 2001 1.50
13 Emergence, mechanism, and clinical implications of reduced glycopeptide susceptibility in Staphylococcus aureus. Eur J Clin Microbiol Infect Dis 2001 1.48
14 Epidemiology of quinolone resistance of Klebsiella pneumoniae and Klebsiella oxytoca in Europe. Eur J Clin Microbiol Infect Dis 2000 1.42
15 Frequency of isolation and antimicrobial resistance of gram-negative and gram-positive bacteria from patients in intensive care units of 25 European university hospitals participating in the European arm of the SENTRY Antimicrobial Surveillance Program 1997-1998. Eur J Clin Microbiol Infect Dis 2001 1.39
16 Cytokine removal and cardiovascular hemodynamics in septic patients with continuous venovenous hemofiltration. Intensive Care Med 1997 1.32
17 Molecular surveillance of European quinolone-resistant clinical isolates of Pseudomonas aeruginosa and Acinetobacter spp. using automated ribotyping. J Clin Microbiol 2000 1.32
18 Frequency of isolation of pathogens from bloodstream, nosocomial pneumonia, skin and soft tissue, and urinary tract infections occurring in European patients. Eur J Clin Microbiol Infect Dis 2001 1.31
19 New cyclic peptides from the ascidian Lissoclinum patella. J Nat Prod 1998 1.31
20 mecA gene is widely disseminated in Staphylococcus aureus population. J Clin Microbiol 2002 1.30
21 Aplysinopsin: antineoplastic tryptophan derivative from the marine sponge Verongia spengelii. Lloydia 1978 1.28
22 In vitro activities of sitafloxacin (DU-6859a) and six other fluoroquinolones against 8,796 clinical bacterial isolates. Antimicrob Agents Chemother 2000 1.23
23 Resistance to tetracycline and distribution of tetracycline resistance genes in European Staphylococcus aureus isolates. J Antimicrob Chemother 2001 1.22
24 Beta-lactam susceptibilities and prevalence of ESBL-producing isolates among more than 5000 European Enterobacteriaceae isolates. Int J Antimicrob Agents 2004 1.20
25 Fluoroquinolones: structure and target sites. Curr Drug Targets 2003 1.17
26 Comparative activities of clinafloxacin, grepafloxacin, levofloxacin, moxifloxacin, ofloxacin, sparfloxacin, and trovafloxacin and nonquinolones linozelid, quinupristin-dalfopristin, gentamicin, and vancomycin against clinical isolates of ciprofloxacin-resistant and -susceptible Staphylococcus aureus strains. Antimicrob Agents Chemother 1999 1.15
27 New cycloartanol sulfates from the alga Tydemania expeditionis: inhibitors of the protein tyrosine kinase pp60v-src. J Nat Prod 1994 1.10
28 Three cases of bacterial meningitis after spinal and epidural anesthesia. Eur J Clin Microbiol Infect Dis 2002 1.09
29 Antimicrobial resistance among urinary tract infection (UTI) isolates in Europe: results from the SENTRY Antimicrobial Surveillance Program 1997. Antonie Van Leeuwenhoek 2000 1.09
30 In vitro development of resistance to six quinolones in Streptococcus pneumoniae, Streptococcus pyogenes, and Staphylococcus aureus. Antimicrob Agents Chemother 2001 1.08
31 Marine natural products. Xenicin: a diterpenoid possessing a nine-membered ring from the soft coral, Xenia elongata. J Am Chem Soc 1977 1.02
32 Psammaplysin F, a new bromotyrosine derivative from a sponge, Aplysinella sp. J Nat Prod 1997 1.02
33 Comparative in vitro activities of ciprofloxacin, clinafloxacin, gatifloxacin, levofloxacin, moxifloxacin, and trovafloxacin against Klebsiella pneumoniae, Klebsiella oxytoca, Enterobacter cloacae, and Enterobacter aerogenes clinical isolates with alterations in GyrA and ParC proteins. Antimicrob Agents Chemother 1999 1.02
34 Enzyme inhibitors: new and known polybrominated phenols and diphenyl ethers from four Indo-Pacific Dysidea sponges. J Nat Prod 1995 1.01
35 Frequency of occurrence and antimicrobial susceptibility of bacterial pathogens associated with skin and soft tissue infections during 1997 from an International Surveillance Programme. SENTRY Participants Group. Eur J Clin Microbiol Infect Dis 1999 0.99
36 Multiple mutations conferring ciprofloxacin resistance in Staphylococcus aureus demonstrate long-term stability in an antibiotic-free environment. J Antimicrob Chemother 2000 0.98
37 Antimicrobial resistance among community-acquired pneumonia isolates in Europe: first results from the SENTRY antimicrobial surveillance program 1997. SENTRY Participants Group. Int J Infect Dis 1999 0.95
38 Multi-resistance to antimicrobial agents for the ten most frequently isolated bacterial pathogens. Int J Antimicrob Agents 2001 0.93
39 Methicillin-resistant, quinupristin-dalfopristin-resistant Staphylococcus aureus with reduced sensitivity to glycopeptides. J Clin Microbiol 2001 0.91
40 Milolides, new briarane diterpenoids from the western Pacific octocoral Briareum stechei. J Nat Prod 2001 0.91
41 Cytotoxic amides from the octocoral Telesto riisei. J Nat Prod 1996 0.90
42 Antimicrobial resistance in European isolates of Pseudomonas aeruginosa. European SENTRY Participants. Eur J Clin Microbiol Infect Dis 2000 0.90
43 Determination of hepatic cholesterol 7alpha-hydroxylase activity in man. J Lipid Res 1974 0.89
44 Aurantoside C, a new tetramic acid glycoside from the sponge Homophymia conferta. J Nat Prod 1999 0.89
45 7-Hydroxyceratinamine, a new cyanoformamide-containing metabolite from a sponge, Aplysinella sp. J Nat Prod 1999 0.89
46 New imidazole alkaloids and zinc complexes from the micronesian sponge Leucetta cf. chagosensis. J Nat Prod 1998 0.88
47 Resistance to trimethoprim-sulfamethoxazole and modifications in genes coding for dihydrofolate reductase and dihydropteroate synthase in European Streptococcus pneumoniae isolates. J Antimicrob Chemother 2001 0.88
48 A new spermatostatic glycoside from the soft coral Sinularia crispa. J Nat Prod 1990 0.87
49 Sesquiterpene quinols/quinones from the Micronesian sponge Petrosaspongia metachromia. J Nat Prod 2000 0.86
50 Relationship between mutations in the coding and promoter regions of the norA genes in 42 unrelated clinical isolates of Staphylococcus aureus and the MICs of norfloxacin for these strains. J Antimicrob Chemother 1998 0.86
51 11 beta, 12 beta-Epoxypukalide, a furanocembranolide from the gorgonian Leptogorgia setacea. J Nat Prod 1985 0.85
52 Geographical distribution of quinolone resistance among Staphylococcus aureus, Escherichia coli and Klebsiella spp. isolates from 20 European university hospitals. SENTRY Participants Group. J Antimicrob Chemother 1999 0.85
53 Phyllofolactones C and D, two new minor homoscalarane sesterterpenes from the Chinese sponge Phyllospongia foliascens. J Nat Prod 1999 0.83
54 Typing of 154 clinical isolates of Stenotrophomonas maltophilia by pulsed-field gel electrophoresis and determination of the in vitro susceptibilities of these strains to 28 antibiotics. J Antimicrob Chemother 2000 0.83
55 Isolation and identification of cerebrosides from the marine sponge Chondrilla nucula. J Lipid Res 1974 0.83
56 Agelasines H and I, 9-methyladenine-containing diterpenoids from an Agelas sponge. J Nat Prod 1998 0.83
57 New brominated diphenyl ether from an unidentified species of Dysidea sponge. 13C NMR data for some brominated diphenyl ethers. J Nat Prod 1996 0.82
58 Association of alterations in ParC and GyrA proteins with resistance of clinical isolates of Enterococcus faecium to nine different fluoroquinolones. Antimicrob Agents Chemother 1999 0.82
59 New diterpene isonitriles from the sponge Phakellia pulcherrima. J Nat Prod 1998 0.82
60 Inhibition of protein phosphatase-1 by clavosines A and B. Novel members of the calyculin family of toxins. J Biol Chem 2000 0.82
61 Structural alterations in the translational attenuator of constitutively expressed erm(A) genes in Staphylococcus aureus. Antimicrob Agents Chemother 2001 0.82
62 Interobserver reproducibility of immunocytochemical estrogen- and progesterone receptor status assessment in breast cancer. Anticancer Res 1996 0.81
63 Bacterial resistance in urinary tract infections: how to stem the tide. Expert Opin Pharmacother 2001 0.81
64 Propensity of fluoroquinolones with different moieties at position 8 to cause resistance development in clinical isolates of Streptococcus pneumoniae. Antimicrob Agents Chemother 2001 0.81
65 Cytotoxic acylated Spermidine from a soft coral, Sinularia sp. J Nat Prod 1997 0.81
66 Swinholides and new acetylenic compounds from an undescribed species of Theonella sponge. J Nat Prod 1999 0.80
67 Marine natural products: pyrrololactams from several sponges. J Nat Prod 1985 0.80
68 Longithorols A and B, novel prenylated paracyclophane- and metacyclophane-type hydroquinones from the tunicate Aplidium longithorax. J Nat Prod 1999 0.79
69 Development of chromosomally encoded resistance mutations in small-colony variants of Staphylococcus aureus. J Antimicrob Chemother 2001 0.79
70 Inhibition of protein phosphatases-1 and -2A with acanthifolicin. Comparison with diarrhetic shellfish toxins and identification of a region on okadaic acid important for phosphatase inhibition. FEBS Lett 1990 0.79
71 Cross-resistance analyses and molecular typing of Staphylococcus aureus and Streptococcus spp. isolates resistant to quinupristin/dalfopristin. J Antimicrob Chemother 1999 0.78
72 New diketopiperazines from the sponge Dysidea chlorea. J Nat Prod 1998 0.78
73 Induction of in vitro resistance to BMS-284756 by Streptococcus pneumoniae. J Antimicrob Chemother 2001 0.78
74 Minor and trace sterols in marine invertebrates 39. 24 xi, 25 xi-24,26-Cyclocholest-5-en-3 beta-ol, a novel cyclopropyl sterol. Steroids 1982 0.77
75 Simultaneous immunohistochemical and biochemical hormone receptor assessment in breast cancer provides complementary prognostic information. Anticancer Res 1998 0.77
76 Stellettin A, a new triterpenoid pigment from the marine sponge Stelletta tenuis. J Nat Prod 1994 0.77
77 Optimization of flow-cytometric discrimination between reticulocytes and erythrocytes. Cytometry 1986 0.77
78 Patagonicol: a diterpenoid from the Chinese soft coral Alcyonium patagonicum. J Nat Prod 1993 0.76
79 [Sonographic findings in the hip of newborn infants after pregnancy and labor from breech position]. Ultraschall Med 1993 0.76
80 Impact of hygienic measures on the development of methicillin resistance among staphylococci between 1991 and 1996 in a university hospital. J Hosp Infect 1998 0.76
81 Molecular structures and conformational studies of triarylcyclopropyl and related nonsteroidal antiestrogens. J Med Chem 1994 0.76
82 A new pathway of tumor promotion by the okadaic acid class compounds. Adv Second Messenger Phosphoprotein Res 1990 0.76
83 Pantherinine, a cytotoxic aromatic alkaloid, and 7-deazainosine from the ascidian Aplidium pantherinum. J Nat Prod 1993 0.76
84 Abuse of guaifenesin-containing medications generates an excess of a carboxylate salt of beta-(2-methoxyphenoxy)-lactic acid, a guaifenesin metabolite, and results in urolithiasis. Urology 1999 0.75
85 The effects of prostaglandins of the E and I type on histamine release from human adenoidal mast cells. Agents Actions 1986 0.75
86 In-vitro activities of quinupristin/dalfopristin and other anti-staphylococcal agents against methicillin-resistant strains of Staphylococcus aureus isolated over a 16-year period. J Antimicrob Chemother 1998 0.75
87 Stability of the MICs of various antibiotics in different clonal populations of methicillin-resistant Staphylococcus aureus. J Antimicrob Chemother 1998 0.75
88 A new cytotoxic dihydroxy sterol from the soft coral Alcyonium patagonicum. J Nat Prod 1995 0.75
89 Two new cytotoxic peroxide-containing acids from a New Guinea sponge, Callyspongia sp. J Nat Prod 1994 0.75
90 In vitro development of resistance to newer fluoroquinolones in Streptococcus pneumoniae isolates with reduced susceptibility to ciprofloxacin. Eur J Clin Microbiol Infect Dis 2001 0.75
91 PD-140248 (Parke-Davis & Co). IDrugs 2000 0.75
92 24 epsilon-Methyl-5 alpha-cholestane-3 beta,5,6 beta,22r,24-pentol 6-acetate: new polyhydroxylated sterol from the soft coral Asterospicularia randalli. Steroids 1984 0.75
93 A new lysine derivative and new 3-bromopyrrole carboxylic acid derivative from two marine sponges. J Nat Prod 1998 0.75
94 Characterization of the translational attenuator of 20 methicillin-resistant, quinupristin/dalfopristin-resistant Staphylococcus aureus isolates with reduced susceptibility to glycopeptides. J Antimicrob Chemother 2001 0.75
95 Seasonal variation of mast cell function in human adenoid tissues. Int Arch Allergy Appl Immunol 1987 0.75
96 Perfragilins A and B, cytotoxic isoquinolinequinones from the bryozoan Membranipora perfragilis. J Nat Prod 1993 0.75
97 Marine natural products: isolation of dendrolasin from the sponge Oligoceras hemorrhages. Lloydia 1975 0.75
98 Chemical constituents of halophilic facultatively anaerobic bacteria, 1. J Nat Prod 1995 0.75
99 Four new coumarin derivatives from Artemisia keiskeana. J Nat Prod 2001 0.75
100 Makaluvic acids A and B: novel alkaloids from the marine sponge Zyzzya fuliginosus. J Nat Prod 1996 0.75
101 Inhibitors of protein tyrosine kinase pp60v-src: sterol sulfates from the brittle star Ophiarachna incrassata. J Nat Prod 1994 0.75
102 Sesquiterpene furans and thiosesquiterpenes from the nudibranch Ceratosoma brevicaudatum. J Nat Prod 1989 0.75
103 Marine natural products: 5alpha-cholestane-3beta,5,6beta,9-tetrol: a polyhydroxylated steroid from the gorgonian Pseudopterogorgia elisabethae. Steroids 1976 0.75
104 Influence of carnitine acyltransferase inhibitors on the performance and metabolism of rat cardiac muscle. J Clin Chem Clin Biochem 1990 0.75
105 New marine sterol possessing a side chain cyclopropyl group: 23-demethylgorgosterol. J Am Chem Soc 1970 0.75
106 [Classical and current aspects of purulent meningitis]. Nervenarzt 1996 0.75
107 Therapeutic options in an era of decreasing antimicrobial susceptibility. J Chemother 2002 0.75
108 [Effect of atypical pathogen colonization on cervical priming in cervix insufficiency]. Z Geburtshilfe Perinatol 1989 0.75
109 Multiplex PCR for the Rapid Simultaneous Speciation and Detection of Methicillin-Resistance and Genes Encoding Toxin Production in Staphylococcus aureus. Methods Mol Med 2001 0.75
110 Further studies of the terpenoid content in the gorgonian Eunicea succinea: 12,13-bisepieupalmerin, a new cembranolide. J Nat Prod 1984 0.75
111 [Immunohistochemical diagnosis of occult breast cancer]. Geburtshilfe Frauenheilkd 1987 0.75
112 Halisulfate 7, a new sesterterpene sulfate from a sponge, Coscinoderma sp. J Nat Prod 1999 0.75
113 In vitro activity of faropenem and 21 other compounds against 385 different genetically characterized isolates of antibiotic-resistant Streptococcus pneumoniae. J Antimicrob Chemother 2001 0.75