Mutations in Genes Encoding Penicillin-Binding Proteins and Efflux Pumps Play a Role in β-Lactam Resistance in Helicobacter cinaedi.

abstract：:Aggregatibacter actinomycetemcomitans, a periodontopathogen, has been associated with several systemic diseases. Herein, we report the protective effect of human lactoferrin (hLF) during A. actinomycetemcomitans bacteremia in lactoferrin knockout (LFKO(-/-)) mice. The prophylactic, concurrent, and therapeutic intraven...

journal_title：Antimicrobial agents and chemotherapy

authors： Velusamy SK,Poojary R,Ardeshna R,Alabdulmohsen W,Fine DH,Velliyagounder K

更新日期：2014-01-01 00:00:00

abstract：:We have evaluated the clinical potential of TXU (anti-CD7)-pokeweed antiviral protein (PAP) immunoconjugate (TXU-PAP) as a new biotherapeutic anti-human immunodeficiency virus (anti-HIV) agent by evaluating its anti-HIV type 1 (anti-HIV-1) activity in vitro, as well as in a surrogate human peripheral blood lymphocyte-...

journal_title：Antimicrobial agents and chemotherapy

authors： Uckun FM,Chelstrom LM,Tuel-Ahlgren L,Dibirdik I,Irvin JD,Langlie MC,Myers DE

更新日期：1998-02-01 00:00:00

abstract：:Past studies conducted in Australian and American families have demonstrated that alpha 2b interferon (IFN) is effective in preventing rhinovirus-associated illnesses in exposed family members. IFN had been used by intranasal application for 7 days after exposure (5 x 10(6) IU/day). We used the same approach but with ...

journal_title：Antimicrobial agents and chemotherapy

authors： Monto AS,Schwartz SA,Albrecht JK

更新日期：1989-03-01 00:00:00

abstract：:A major concern of immunocompromised patients, in particular those with AIDS, is susceptibility to infection caused by opportunistic pathogens such as Pneumocystis jirovecii, which is a leading cause of pneumonia in immunocompromised patients. We report the first kinetic and structural data for 2,4-diamino-6-[(2',5'-d...

journal_title：Antimicrobial agents and chemotherapy

authors： Cody V,Pace J,Queener SF,Adair OO,Gangjee A

更新日期：2013-06-01 00:00:00

abstract：:To evaluate the exposure-response relationships for efficacy and safety of voriconazole and anidulafungin in adult patients with invasive aspergillosis (IA), a population pharmacokinetic-pharmacodynamic (PK-PD) analysis was performed with data from a phase 3, prospective, double-blind, comparative study evaluating vor...

journal_title：Antimicrobial agents and chemotherapy

authors： Liu P,Mould DR

更新日期：2014-08-01 00:00:00

abstract：:Oral Fusobacterium nucleatum populations from 20 young, healthy children were examined for beta-lactamase production. Ten children (50%) harbored, altogether, 25 beta-lactamase-positive F. nucleatum isolates that were identified as F. nucleatum subsp. polymorphum, F. nucleatum subsp. nucleatum, and F. nucleatum subsp....

journal_title：Antimicrobial agents and chemotherapy

authors： Könönen E,Kanervo A,Salminen K,Jousimies-Somer H

更新日期：1999-05-01 00:00:00

abstract：:Oral doses of norfloxacin (80 mg/kg of body weight per day) and ciprofloxacin (25 and 80 mg/kg/day) and intramuscular doses of teicoplanin (5 mg/kg/day), all administered once a day for 10 days, were evaluated as a means of preventing encrusted cystitis caused by Corynebacterium group D2. Zinc disks dipped into a 24-h...

journal_title：Antimicrobial agents and chemotherapy

authors： Soriano F,Rodriguez-Tudela JL,Castilla C,Avilés P

更新日期：1991-12-01 00:00:00

abstract：:Human African trypanosomiasis (HAT), a neglected tropical disease, is fatal without treatment. Pentamidine, a cationic diamidine, has been used to treat first-stage (hemolymphatic) HAT since the 1940s, but it is ineffective against second-stage (meningoencephalitic, or central nervous system [CNS]) infection. Novel di...

journal_title：Antimicrobial agents and chemotherapy

authors： Yang S,Wenzler T,Miller PN,Wu H,Boykin DW,Brun R,Wang MZ

更新日期：2014-07-01 00:00:00

abstract：:Various steroids were tested for their effects upon gonococcal O2 consumption and glucose catabolism. The ability to inhibit gonococcal O2 uptake appeared to be related to the molecular configuration of the steroid. The presence of lipophilic groups enhanced inhibition, whereas the addition of hydrophilic groups marke...

journal_title：Antimicrobial agents and chemotherapy

authors： Lysko PG,Morse SA

更新日期：1980-08-01 00:00:00

abstract：:A Klebsiella pneumoniae strain resistant to third-generation cephalosporins was isolated in the eastern Netherlands. The strain was found to carry a novel extended-spectrum beta-lactamase, namely, SHV-31. The combination of the two mutations by which SHV-31 differs from SHV-1, namely, L35Q and E240K, had previously on...

journal_title：Antimicrobial agents and chemotherapy

authors： Mazzariol A,Roelofsen E,Koncan R,Voss A,Cornaglia G

更新日期：2007-03-01 00:00:00

abstract：:Cell-free amino acid incorporation using ribosomes from strains of either Clostridium perfringens or Bacteroides fragilis was shown to be susceptible to inhibition by streptomycin and gentamicin. Ribosomes bound dihydrostreptomycin as effectively as ribosomes from Escherichia coli. No inactivation of streptomycin or g...

journal_title：Antimicrobial agents and chemotherapy

authors： Bryan LE,Kowand SK,Van Den Elzen HM

更新日期：1979-01-01 00:00:00

abstract：:Enterococcus faecalis strain WCH9 displays a moderate level of resistance to vancomycin (MIC = 16 microgram/ml) and full susceptibility to teicoplanin but is negative by PCR analysis using primers specific for all known enterococcal vancomycin resistance genotypes (vanA, vanB, vanC, vanD, and vanE). We have isolated a...

journal_title：Antimicrobial agents and chemotherapy

authors： McKessar SJ,Berry AM,Bell JM,Turnidge JD,Paton JC

更新日期：2000-11-01 00:00:00

abstract：:Lysobactor enzymogenes strain OH11 is an emerging biological control agent of fungal and bacterial diseases. We recently completed its genome sequence and found it contains a large number of gene clusters putatively responsible for the biosynthesis of nonribosomal peptides and polyketides, including the previously ide...

journal_title：Antimicrobial agents and chemotherapy

authors： Zhang W,Li Y,Qian G,Wang Y,Chen H,Li YZ,Liu F,Shen Y,Du L

更新日期：2011-12-01 00:00:00

abstract：:The frequency of alleles with triple mutations conferring sulfadoxine-pyrimethamine (SP) resistance in the Peruvian Amazon Basin has declined (16.9% for dhfr and 0% for dhps compared to 47% for both alleles in 1997) 5 years after SP was replaced as the first-line treatment for Plasmodium falciparum malaria. Microsatel...

journal_title：Antimicrobial agents and chemotherapy

authors： Zhou Z,Griffing SM,de Oliveira AM,McCollum AM,Quezada WM,Arrospide N,Escalante AA,Udhayakumar V

更新日期：2008-02-01 00:00:00

abstract：:An oligonucleoside methylphosphonate (ONMP) complementary to the splice acceptor site of immediate-early (IE) pre-mRNAs 4 and 5 (IE4,5SA) inhibits herpes simplex virus type 1 (HSV-1) growth in vitro and in infected animals. The antiviral effect appears to be due to inhibition of IE pre-mRNA 4 and 5 splicing and/or IE4...

journal_title：Antimicrobial agents and chemotherapy

authors： Kulka M,Smith CC,Levis J,Fishelevich R,Hunter JC,Cushman CD,Miller PS,Ts'o PO,Aurelian L

更新日期：1994-04-01 00:00:00

abstract：:The present studies were conducted to better define the mechanism of action of polyethylene hexamethylene biguanide (PEHMB) (designated herein as NB325), which was shown in previous studies to inhibit infection by the human immunodeficiency virus type 1 (HIV-1). Fluorescence-activated flow cytometric analyses of activ...

journal_title：Antimicrobial agents and chemotherapy

authors： Thakkar N,Pirrone V,Passic S,Zhu W,Kholodovych V,Welsh W,Rando RF,Labib ME,Wigdahl B,Krebs FC

更新日期：2009-02-01 00:00:00

abstract：:Replication of hepatitis C virus (HCV) RNA is catalyzed by the virally encoded RNA-dependent RNA polymerase NS5B. It is believed that the viral polymerase utilizes a de novo or primer-independent mechanism for initiation of RNA synthesis. Our previous work has shown that dinucleotides were efficient initiation molecul...

journal_title：Antimicrobial agents and chemotherapy

authors： Zhong W,An H,Barawkar D,Hong Z

更新日期：2003-08-01 00:00:00

abstract：:The Staphylococcus aureus small-colony variant (SCV) phenotype has been associated with relapsing and antibiotic-refractory infections. However, little is known about the activities of antibiotics on clinical SCVs. Here, we demonstrated that SCVs without detectable auxotrophies were at least as susceptible to most β-l...

journal_title：Antimicrobial agents and chemotherapy

authors： Idelevich EA,Kriegeskorte A,Schleimer N,Peters G,von Eiff C,Becker K

更新日期：2018-03-27 00:00:00

abstract：:A micellar formulation of amphotericin B (AmB) solubilized with poloxamer 188 was evaluated against an AmB Leishmania donovani-resistant line. A concave isobologram showed a synergistic effect of this association against promastigotes. This result was confirmed with amastigotes since the 50% effective concentration of...

journal_title：Antimicrobial agents and chemotherapy

authors： Espuelas S,Legrand P,Loiseau PM,Bories C,Barratt G,Irache JM

更新日期：2000-08-01 00:00:00

abstract：:Transposon mutagenesis of a clinical isolate of Morganella morganii, G1492 (tigecycline MIC of 4 microg/ml), yielded two insertion knockout mutants for which tigecycline MICs were 0.03 microg/ml. Transposon insertions mapped to acrA, which is constitutively overexpressed in G1492, suggesting a role of the AcrAB efflux...

journal_title：Antimicrobial agents and chemotherapy

authors： Ruzin A,Keeney D,Bradford PA

更新日期：2005-02-01 00:00:00

abstract：:The minimal inhibitory concentration of temocillin (BRL 17421) against 476 clinical isolates was determined by an agar dilution method. Temocillin was active against most of the Enterobacteriaceae, Haemophilus, and Neisseria strains tested. The compound showed low activity or was inactive against Bacteroides, Campylob...

journal_title：Antimicrobial agents and chemotherapy

authors： Van Landuyt HW,Pyckavet M,Lambert A,Boelaert J

更新日期：1982-10-01 00:00:00

abstract：:The anti-influenza drug oseltamivir is an ester prodrug activated by hepatic carboxylesterases. Plasma esterases also convert up to 31.8% of the parent compound to the active metabolite after 4 h ex vivo, with wide interindividual variation. This source of error is removed by adding the esterase inhibitor dichlorvos t...

journal_title：Antimicrobial agents and chemotherapy

authors： Lindegardh N,Davies GR,Tran TH,Farrar J,Singhasivanon P,Day NP,White NJ

更新日期：2006-09-01 00:00:00

abstract：:The antibacterial activity of RU 64004, a new ketolide, was evaluated against more than 600 bacterial strains and was compared with those of various macrolides and pristinamycin. RU 64004 had good activity against multiresistant pneumococci, whether they were erythromycin A resistant or not, including penicillin-resis...

journal_title：Antimicrobial agents and chemotherapy

authors： Agouridas C,Bonnefoy A,Chantot JF

更新日期：1997-10-01 00:00:00

abstract：:The susceptibilities of 52 clinical isolates of Bacteroides fragilis to five monoanionic cephalosporins were examined. Cefoperazone showed the highest antibacterial activity, followed by ceftezole, cefazolin, cefamandole, and cephalothin. There were two groups of resistant strains: one group (ca. 15%), of which B. fra...

journal_title：Antimicrobial agents and chemotherapy

authors： Yotsuji A,Mitsuyama J,Hori R,Yasuda T,Saikawa I,Inoue M,Mitsuhashi S

更新日期：1988-12-01 00:00:00

abstract：:Using a rabbit model of methicillin-resistant Staphylococcus aureus knee-prosthesis infection, we studied the efficacy of teicoplanin cement alone or in combination with systemic intramuscular (i.m.) injections of teicoplanin. Seven days after infection, surgical debridement and removal of the infected prostheses were...

journal_title：Antimicrobial agents and chemotherapy

authors： Ismael F,Bléton R,Saleh-Mghir A,Dautrey S,Massias L,Crémieux AC

更新日期：2003-10-01 00:00:00

abstract：:Cephalosporins possessing a 1, 3-dithiolane, 1, 3-dithiane, or 1, 3-dithietane ring on their 7 beta-substituents showed potent inhibitory activity against cephaloridine hydrolysis by cephalosporinases purified from proteus morganii, Proteus rettgeri, and Proteus inconstans, which were not inhibited by clavulanic acid,...

journal_title：Antimicrobial agents and chemotherapy

authors： Ohya S,Miyadera T,Yamazaki M

更新日期：1982-04-01 00:00:00

abstract：:Respiratory syncytial virus (RSV) is the leading cause of acute lower respiratory tract infections in young children and other high-risk populations. RSV nucleoprotein (N) is essential for virus assembly and replication as part of the viral ribonucleoprotein (RNP) complex. RSV604 was a putative N inhibitor in phase 2 ...

journal_title：Antimicrobial agents and chemotherapy

authors： Challa S,Scott AD,Yuzhakov O,Zhou Y,Tiong-Yip CL,Gao N,Thresher J,Yu Q

更新日期：2015-02-01 00:00:00

abstract：:A radioimmunoassay system has been developed for the measurement of two major metabolites of 9,3"-diacetylmidecamycin, Mb-6 and Mb-12. A radioimmunoassay for Mb-6 was performed by using anti-Mb-6 serum and a [125I]tyramined Mb-6 derivative as a radiolabeled antigen. The labeled antigen was prepared by the chloramine T...

journal_title：Antimicrobial agents and chemotherapy

authors： Shimada N,Ueda T,Yokoshima T,Umemura K,Shomura T

更新日期：1982-12-01 00:00:00

abstract：:Five recombinant alpha interferons and two recombinant beta interferons have been tested for their ability to inhibit yields of herpes simplex virus types 1 and 2 and human cytomegalovirus in human embryonic lung cells. All of the alpha species and both of the beta forms (cysteine and serine) were active against the h...

journal_title：Antimicrobial agents and chemotherapy

authors： Rasmussen LE,Chen PT,Merigan TC

更新日期：1984-10-01 00:00:00

abstract：:PPI-0903M is a novel N-phosphono-type cephalosporin active against oxacillin-resistant staphylococci and many other gram-positive organisms. This study evaluated the in vitro activity and spectrum of PPI-0903M against 1,478 recent clinical isolates collected from 80 medical centers (22 countries). PPI-0903M demonstrat...

journal_title：Antimicrobial agents and chemotherapy

authors： Sader HS,Fritsche TR,Kaniga K,Ge Y,Jones RN

更新日期：2005-08-01 00:00:00