Antibacterial Agents
Mostrando 13-24 de 434 artigos, teses e dissertações.
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13. Potency of nano-antibacterial formulation from Sargassum binderi against selected human pathogenic bacteria
Seaweeds constitutes an abundant marine reserve that can be harnessed as source of new pharmaceutical agents. Sargassum binderi Sonder ex J. Agardh is a brown seaweed that is predominantly available from December to March in the Red Sea, Jazan, Kingdom of Saudi Arabia (KSA). In this study, three extracts were isolated using three different techniques, and we
Braz. J. Pharm. Sci.. Publicado em: 08/04/2019
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14. Synthesis, Antimicrobial Activity and Structure-Activity Relationship of Some 5-Arylidene-thiazolidine-2,4-dione Derivatives
Derivatives of the thiazolidine-2,4-dione core represent a heterocyclic class with several correlated properties. In this context, the synthesis of structural analogues of these bioactive substances becomes attractive in the field of medicinal chemistry. These analogues act as antimicrobial agents against Gram-positives pathogens. The present work aimed to s
J. Braz. Chem. Soc.. Publicado em: 2019-01
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15. Inhibitory effect of reduced graphene oxide-silver nanocomposite on progression of artificial enamel caries
Abstract The use of antimicrobial agents is an efficient method to prevent dental caries. Also, nanometric antibacterial agents with wide antibacterial spectrum and strong antibacterial effects can be applied for prevention of dental caries. Objectives: The aim of this study was to evaluate the inhibitory effect of reduced graphene oxide-silver nanoparticle
J. Appl. Oral Sci.. Publicado em: 10/12/2018
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16. Caries lesion remineralization with fluoride toothpastes and chlorhexidine - effects of application timing and toothpaste surfactant
Abstract Habitual toothbrushing with fluoridated toothpaste followed by rinsing with antibacterial mouthwashes is a method to maintain good oral hygiene and to diminish the occurrence and severity of dental caries and periodontal disease. However, our understanding of how antimicrobial agents in mouthwashes affect fluoride-mediated caries lesion remineraliza
J. Appl. Oral Sci.. Publicado em: 11/06/2018
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17. Synthesis and Antimicrobial Activity of Glycosylated 2-Aryl-5-amidinobenzimidazoles
A series of new glycosylated 2-aryl-5-amidinobenzimidazoles derived from four different carbohydrates (D-glucose, D-galactose, N-acetyl-D-glucosamine and lactose) were synthesized by the condensation of the appropriate 4-formyl-3-methoxyphenyl glycoside with 4-amidino- or 4-N-isopropylamidino-ortho-phenylenediamine hydrochloride. All the compounds were prope
J. Braz. Chem. Soc.. Publicado em: 2018-06
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18. Synthesis and Antibacterial Evaluation of 2-Ethyl-1-(4-substituted)phenyl-1 H-imidazole Derivatives as Open-Chain Analogues of 7-Alkoxyl-4,5-dihydro-imidazo[1,2-a]quinolines
A novel series of 2-ethyl-1-(4-substituted)phenyl-1H-imidazole derivatives was designed, synthesized, and tested for its antibacterial activity against various bacterial strains. Most of the synthesized compounds showed potent inhibition of several Gram-positive and Gram-negative bacterial strains with minimum inhibitory concentration (MIC) values in the ran
J. Braz. Chem. Soc.. Publicado em: 2018-04
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19. Tea polyphenols induce S phase arrest and apoptosis in gallbladder cancer cells
Gallbladder cancer (GBC) is the most common malignancy in the biliary tract. Without effective treatment, its prognosis is notoriously poor. Tea polyphenols (TPs) have many pharmacological and health benefits, including antioxidant, anti-inflammatory, anti-tumor, anti-thrombotic, antibacterial, and vasodilatory properties. However, the anti-cancer effect of
Braz J Med Biol Res. Publicado em: 01/03/2018
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20. Clonal relationships, antimicrobial susceptibilities, and molecular characterization of extended-spectrum beta-lactamase-producing Escherichia coli isolates from urinary tract infections and fecal samples in Southeast Iran
Abstract INTRODUCTION: Multidrug-resistant (MDR) Escherichia coli, a species that is a leading cause of urinary tract infections (UTIs) and is a major global public health concern. This study was designed to detect the differences in antibiotic resistance patterns, the production and type of extended spectrum β-lactamases (ESBLs), and the clonal relationsh
Rev. Soc. Bras. Med. Trop.. Publicado em: 2018-02
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21. Evaluation of antimicrobial, cytotoxic and chemopreventive activities of carvone and its derivatives
ABSTRACT Considering the reported activity of carvone in the literature, this study aimed to evaluate the antimicrobial, cytotoxic and chemopreventive activities of (+)- and (-)-carvone, (+)- and (-)- hydroxydihydrocarvone and α,β-epoxycarvone. (+)-Hydroxydihydrocarvone (HC+), (-)-hydroxydihydrocarvone (HC-) and α,β-epoxycarvone (EP) were obtained by syn
Braz. J. Pharm. Sci.. Publicado em: 08/01/2018
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22. Evaluation of meso-substituted cationic corroles as potential antibacterial agents
ABSTRACT Cationic derivatives of 5,10,15-tris[4-(pyridin-4-ylsulphanyl)-2,3,5,6-tetrafluorophenyl]-corrolategallium(III)pyridine and 5,10,15-tris[4-(pyridin-2-ylsulfanyl)-2,3,5,6-tetrafluorophenyl]-correlategallium(III)pyridine were synthesized and their photosensitizing properties against the naturally bioluminescent Gram-negative bacterium Allivibrio fisch
An. Acad. Bras. Ciênc.. Publicado em: 2018
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23. Effects of Lippia sidoides essential oil, thymol, p-cymene, myrcene and caryophyllene on rat sciatic nerve excitability
Lippia sidoides Cham is a typical herb species of Northeast Brazil with widespread use in folk medicine. The major constituents of the essential oil of L. sidoides (EOLs) are thymol, p-cymene, myrcene, and caryophyllene. Several studies have shown that the EOLs and its constituents have pharmacological effects, including antibacterial, anti-inflammatory, ant
Braz J Med Biol Res. Publicado em: 19/10/2017
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24. Evaluation of Medicinal Values of Gymnopetalum chinense (Lour.) Merr., a Lesser Known Cucurbit from Eastern Ghats of India
ABSTRACT >The in vitro antimicrobial activity of Gymnopetulum chinense (Cucurbitaceae), a lesser known climber of Eastern Ghats and recently recorded species from Odisha, India was studied against five selected human pathogenic bacteria (Streptococcus mutans, S. pyogenes, Vibrio cholerae, Shigella flexneri and Salmonella typhi), by agar well diffusion (AWD),
Braz. arch. biol. technol.. Publicado em: 05/10/2017