Antimicrobial activities of amine- and guanidine-functionalized cholic acid derivatives.

abstract：:Hepatitis C virus (HCV) inhibitors include direct-acting antivirals (DAAs) such as NS3 serine protease inhibitors, nucleoside and nonnucleoside polymerase inhibitors, and host-targeting antivirals (HTAs) such as cyclophilin inhibitors that have been developed in recent years. Drug-resistant HCV variants have been repo...

journal_title：Antimicrobial agents and chemotherapy

authors： Delang L,Vliegen I,Froeyen M,Neyts J

更新日期：2011-09-01 00:00:00

abstract：:Broth dilution minimal inhibitory concentration (MIC) readings were compared after different incubation periods and with different inoculum concentrations. The purpose was to determine the best conditions for obtaining early results as close as possible to overnight readings. Initially, 76 antibiotic-organism combinat...

journal_title：Antimicrobial agents and chemotherapy

authors： Lampe MF,Aitken CL,Dennis PG,Forsythe PS,Patrick KE,Schoenknecht FD,Sherris JC

更新日期：1975-10-01 00:00:00

abstract：:The abilities of the H+-ATPase inhibitor N, N'-dicyclohexylcarbodiimide and the antibiotic ionophore nigericin to enhance the bactericidal effect of subinhibitory concentrations of gentamicin in two strains of Staphylococcus aureus were studied. Each compound significantly increased both gentamicin uptake and killing....

journal_title：Antimicrobial agents and chemotherapy

authors： Mandel LJ,Eisenberg ES,Simkin NJ,Miller MH

更新日期：1983-09-01 00:00:00

abstract：:We tested the ability of antimicrobial agents that act on the cell wall to kill enterococci and found defective killing (a minimal bactericidal concentration/minimal inhibitory concentration ratio of greater than or equal to 32) with both beta-lactams (penicillin G and cephalothin) and non-beta-lactams (vancomycin, cy...

journal_title：Antimicrobial agents and chemotherapy

authors： Krogstad DJ,Pargwette AR

更新日期：1980-06-01 00:00:00

abstract：:A clinical isolate of Pseudomonas aeruginosa, PAe191, was found to be highly resistant to all anti-Pseudomonas beta-lactam antibiotics (except imipenem) and resistant also to aminoglycosides. It produced a beta-lactamase (with an apparent pI of 7.6) which was not inhibited by clavulanic acid. Cloning and characterizat...

journal_title：Antimicrobial agents and chemotherapy

authors： Mugnier P,Casin I,Bouthors AT,Collatz E

更新日期：1998-12-01 00:00:00

abstract：:Multidrug-resistant tuberculosis (MDR-TB) threatens global TB control. The lengthy treatment includes one of the injectable drugs kanamycin, amikacin, and capreomycin, usually for the first 6 months. These drugs have potentially serious toxicities, and when given as intramuscular injections, dosing can be painful. Adv...

journal_title：Antimicrobial agents and chemotherapy

authors： Dharmadhikari AS,Kabadi M,Gerety B,Hickey AJ,Fourie PB,Nardell E

更新日期：2013-06-01 00:00:00

abstract：:Structural analysis of two new beta-lactam antibiotics, A16884A and A16886B, indicated that they, like cephalosporin C, were composed of modified valine and cysteine residues, and alpha-aminoadipic acid. However, acid hydrolysis of A16886B and A16884A produced three times as much glycine as did hydrolysis of cephalosp...

journal_title：Antimicrobial agents and chemotherapy

authors： Brannon DR,Mabe JA,Ellis R,Whitney JG,Nagarajan R

更新日期：1972-03-01 00:00:00

abstract：:Cationic antimicrobial peptides (CAPs) play important roles in host immune defenses. Plectasin is a defensin-like CAP isolated from the saprophytic fungus Pseudoplectania nigrella. NZ2114 is a novel variant of plectasin with potent activity against Gram-positive bacteria. In this study, we investigated (i) the in vivo...

journal_title：Antimicrobial agents and chemotherapy

authors： Xiong YQ,Hady WA,Deslandes A,Rey A,Fraisse L,Kristensen HH,Yeaman MR,Bayer AS

更新日期：2011-11-01 00:00:00

abstract：:We have previously shown that a series of nonnucleoside pyrrolo[2,3-d]pyrimidines selectively inhibit the replication of herpes simplex virus type 1 (HSV-1) and human cytomegalovirus (HCMV). These compounds act at the immediate-early or early stage of HCMV replication and have antiviral properties somewhat similar to ...

journal_title：Antimicrobial agents and chemotherapy

authors： Evers DL,Breitenbach JM,Borysko KZ,Townsend LB,Drach JC

更新日期：2002-08-01 00:00:00

abstract：:3-O-(3',3'-Dimethylsuccinyl) betulinic acid (DSB), also known as PA-457, bevirimat (BVM), or MPC-4326, is a novel HIV-1 maturation inhibitor. Unlike protease inhibitors, BVM blocks the cleavage of the Gag capsid precursor (CA-SP1) to mature capsid (CA) protein, resulting in the release of immature, noninfectious viral...

journal_title：Antimicrobial agents and chemotherapy

authors： Lu W,Salzwedel K,Wang D,Chakravarty S,Freed EO,Wild CT,Li F

更新日期：2011-07-01 00:00:00

abstract：:A novel gene encoding an aminoglycoside 3-N-acetyltransferase, which confers resistance to gentamicin, astromicin, and sisomicin, was cloned from Pseudomonas aeruginosa Stone 130. Its sequence was determined and found to show considerable similarity to an aac(3)-I gene previously cloned from R plasmids from Enterobact...

journal_title：Antimicrobial agents and chemotherapy

authors： Schwocho LR,Schaffner CP,Miller GH,Hare RS,Shaw KJ

更新日期：1995-08-01 00:00:00

abstract：:The impact of acidification and alkalinization of the urine on the pharmacokinetics of cinoxacin was examined after single 500-mg oral doses were administered to nine healthy male volunteers. Acidic and alkaline conditions were achieved by repeated oral doses of ammonium chloride or sodium bicarbonate, respectively. P...

journal_title：Antimicrobial agents and chemotherapy

authors： Barbhaiya RH,Gerber AU,Craig WA,Welling PG

更新日期：1982-03-01 00:00:00

abstract：:Eravacycline is a fluorocycline antibiotic in phase 3 clinical development for complicated intra-abdominal and urinary tract infections. To support its clinical development, a study was conducted to evaluate the effects of various susceptibility test parameters on the MIC values for aerobic bacteria. The results showe...

journal_title：Antimicrobial agents and chemotherapy

authors： Grossman TH,Pillar CM,Sahm DF,Sutcliffe JA

更新日期：2015-04-01 00:00:00

abstract：:The distributions of tet(M) and conjugative transposons related to Tn1545 were studied by hybridization in 47 clinical isolates of Streptococcus pneumoniae resistant to tetracycline. Resistance to tetracycline was always associated with resistance to minocycline and was due to the presence of the tet(M) gene. Associat...

journal_title：Antimicrobial agents and chemotherapy

authors： Poyart-Salmeron C,Trieu-Cuot P,Carlier C,Courvalin P

更新日期：1991-08-01 00:00:00

abstract：:Human cell culture-derived interferon was shown to inhibit human cytomegalovirus in vitro. A prototype strain, Davis, and six clinical isolates of cytomegalovirus were tested. All six isolates showed uniform susceptibility to interferon, exceeding that of the Davis strain by two- to fourfold. The latter virus was foun...

journal_title：Antimicrobial agents and chemotherapy

authors： Postic B,Dowling JN

更新日期：1977-04-01 00:00:00

abstract：:A beta-lactamase was purified from Serratia marcescens GN16694; it hydrolyzed T-5575 and oxime-type cephalosporins, i.e., cefuroxime and ceftazidime. Its isoelectric point and molecular weight were 8.6 and 42,000, respectively. This enzyme was not inhibited by EDTA and clavulanic acid. This enzyme is an unusual beta-l...

journal_title：Antimicrobial agents and chemotherapy

authors： Matsumura N,Mitsuhashi S

更新日期：1995-09-01 00:00:00

abstract：:Doxycycline is an alternative antibiotic drug for the treatment of syphilis, but data on its efficacy, especially data on its efficacy against late latent syphilis, are limited. A retrospective study was conducted to evaluate the effectiveness of doxycycline for the treatment of patients with different stages of syphi...

journal_title：Antimicrobial agents and chemotherapy

authors： Dai T,Qu R,Liu J,Zhou P,Wang Q

更新日期：2016-12-27 00:00:00

abstract：:Berberine, a quaternary alkaloid, and several of its derivatives were tested for efficacy against Leishmania donovani and Leishmania braziliensis panamensis in golden hamsters. Tetrahydroberberine was less toxic and more potent than berberine against L. donovani but was not as potent as meglumine antimonate (Glucantim...

journal_title：Antimicrobial agents and chemotherapy

authors： Vennerstrom JL,Lovelace JK,Waits VB,Hanson WL,Klayman DL

更新日期：1990-05-01 00:00:00

abstract：:Detailed analysis of the endogenous sterol content of purified Pneumocystis carinii preparations by gas-liquid chromatography coupled to mass spectrometry suggested that this parasite can both synthesize de novo steroid skeletons (to produce delta7 sterols) and take them from the infected host (leading to delta5 stero...

journal_title：Antimicrobial agents and chemotherapy

authors： Urbina JA,Visbal G,Contreras LM,McLaughlin G,Docampo R

更新日期：1997-07-01 00:00:00

abstract：:Vaborbactam (formerly RPX7009) is a new β-lactamase inhibitor based on a cyclic boronic acid pharmacophore with potent inhibitory activity against Klebsiella pneumoniaecarbapenemases (KPC). It has been developed in combination with meropenem. The objective of these studies was to identify the concentrations of both ag...

journal_title：Antimicrobial agents and chemotherapy

authors： Sun D,Rubio-Aparicio D,Nelson K,Dudley MN,Lomovskaya O

更新日期：2017-11-22 00:00:00

abstract：:The in vitro susceptibility of Mycobacterium fortuitum and Mycobacterium chelonei to cefmetazole was studied by the agar dilution method. At a concentration of 16 micrograms/ml or lower, 44 isolates (96%) of M. fortuitum and 8 isolates (40%) of M. chelonei were inhibited. ...

journal_title：Antimicrobial agents and chemotherapy

authors： Casal MJ,Rodriguez FC,Benavente MC

更新日期：1985-02-01 00:00:00

abstract：:We examined the in vitro susceptibilities of three reference strains and 41 recent clinical isolates of herpes simplex virus types 1 and 2 to 5-ethyl-2'-deoxyuridine. This thymidine analog exerts a type 2-preferential but not a type 2-specific antiviral effect. Utilizing a microtiter assay with BHK-21 cells, we found ...

journal_title：Antimicrobial agents and chemotherapy

authors： Teh CZ,Sacks SL

更新日期：1983-05-01 00:00:00

abstract：:beta-Lactam antibiotics are extremely effective in disrupting the synthesis of the bacterial cell wall in both gram-positive and gram-negative bacteria. However, they are ineffective against Mycobacterium tuberculosis, due to the production of a beta-lactamase enzyme encoded on the chromosome of M. tuberculosis that d...

journal_title：Antimicrobial agents and chemotherapy

authors： Wang F,Cassidy C,Sacchettini JC

更新日期：2006-08-01 00:00:00

abstract：:Fifty-seven Salmonella enterica serotype Typhimurium (S. typhimurium) isolates were collected from human patients in two French hospitals, Hôpital Antoine Béclère (Clamart, France) and Hôpital Bicêtre (Le Kremlin-Bicêtre, France), between 1996 and 1997. Thirty of them (52 percent) were resistant to amino-, carbeni-, a...

journal_title：Antimicrobial agents and chemotherapy

authors： Poirel L,Guibert M,Bellais S,Naas T,Nordmann P

更新日期：1999-05-01 00:00:00

abstract：:Pharmacokinetic modeling has often been applied to evaluate vancomycin pharmacokinetics in neonates. However, clinical application of the model-based personalized vancomycin therapy is still limited. The objective of the present study was to evaluate the clinical utility and safety of a model-based patient-tailored do...

journal_title：Antimicrobial agents and chemotherapy

authors： Leroux S,Jacqz-Aigrain E,Biran V,Lopez E,Madeleneau D,Wallon C,Zana-Taïeb E,Virlouvet AL,Rioualen S,Zhao W

更新日期：2016-03-25 00:00:00

abstract：:The activities of ceftazidime-avibactam, ceftolozane-tazobactam, and comparators were evaluated for 733 isolates displaying resistance to broad-spectrum cephalosporins and carrying extended-spectrum β-lactamase (ESBL) genes detected by whole-genome sequencing analysis. Isolates were collected during 2017 in U.S. hospi...

journal_title：Antimicrobial agents and chemotherapy

authors： Castanheira M,Doyle TB,Mendes RE,Sader HS

更新日期：2019-06-24 00:00:00

abstract：:Of the 176 randomly selected, commensal, gram-negative bacteria isolated from healthy children with low exposure to antibiotics, 138 (78%) carried one or more of the seven macrolide resistance genes tested in this study. These isolates included 79 (91%) isolates from the oral cavity and 59 (66%) isolates from urine sa...

journal_title：Antimicrobial agents and chemotherapy

authors： Ojo KK,Ulep C,Van Kirk N,Luis H,Bernardo M,Leitao J,Roberts MC

更新日期：2004-09-01 00:00:00

abstract：:Major facilitator superfamily (MFS) efflux pumps have been shown to be important for bacterial cells to cope with biocides such as chlorhexidine (CHX), a widely used molecule in hospital settings. In this work, we evaluated the role of two genes, smvA and smvR, in CHX resistance in Enterobacter cloacae complex (ECC). ...

journal_title：Antimicrobial agents and chemotherapy

authors： Guérin F,Gravey F,Plésiat P,Aubourg M,Beyrouthy R,Bonnet R,Cattoir V,Giard JC

更新日期：2019-12-20 00:00:00

abstract：:Indwelling device infections are associated with considerable morbidity and extremely high cost. Pseudomonas aeruginosa is the most frequent gram-negative etiologic agent associated with infections of indwelling catheters and foreign body implants. It is generally agreed that eradication of infection in the presence o...

journal_title：Antimicrobial agents and chemotherapy

authors： Brouqui P,Rousseau MC,Stein A,Drancourt M,Raoult D

更新日期：1995-11-01 00:00:00

abstract：:The effect of liposomal encapsulation of ampicillin on the antibacterial activity against intracellular Listeria monocytogenes was studied by comparing survival of L. monocytogenes within peritoneal mouse macrophages in the presence of free ampicillin alone or in combination with liposome-entrapped ampicillin. In the ...

journal_title：Antimicrobial agents and chemotherapy

authors： Bakker-Woudenberg IA,Lokerse AF,Vink-van den Berg JC,Roerdink FH,Michel MF

更新日期：1986-08-01 00:00:00