Incidence, risk factors, microbiology of venous catheter associated bloodstream infections - A prospective study from a tertiary care hospital

Conclusion : The incidence of CVC-BSI was 21.73% and the rate was 14.59 per 1000 catheter days. Prolonged ICU stay and longer catheterisation were major risk factors. S. aureus was isolated most commonly in CVC-BSI cases. The menace of multidrug resistance and biofilm formation in CVCs is associated with CVC-BSI.
Source: Indian Journal of Medical Microbiology - Category: Microbiology Authors: Source Type: research

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Halogenated boroxine dipotassium trioxohydroxytetrafluorotriborate K2[B3O3F4OH] inhibits emerging multidrug-resistant and β-lactamase-producing opportunistic pathogens. Drug Dev Ind Pharm. 2019 Aug 16;:1-21 Authors: Maravić A, Rončević T, Krce L, Ilić N, Galić B, Čikeš Čulić V, Carev I Abstract Halogenated boroxine dipotassium trioxohydroxytetrafluorotriborate, K2[B3O3F4OH] (boroxine) was previously shown to be very effective in inhibition of several carcinoma cell lines, including the skin cancer. Here, we investigated its antimicrobial potential by targeting the multidrug-resistan...
Source: Drug Development and Industrial Pharmacy - Category: Drugs & Pharmacology Tags: Drug Dev Ind Pharm Source Type: research
Abstract The purpose of this research is to compare and enhance the antimicrobial and antibiofilm potentials of the biogenic selenium nanoparticles (Se NPs) produced by cost-effective and eco-friendly green methods. The synthesis of Se NPs is described in this manuscript by two different methods: a biogenic process using Penicillium chrysogenum filtrate and by utilizing gentamicin drug (CN) following the application of gamma irradiation. Se NPs were characterized by UV-Vis., HRTM, FTIR, XRD, DLS, SEM, and EDX mapping technique. Antimicrobial and antibiofilm activities of the synthesized Se NPs were investigated ag...
Source: Biological Trace Element Research - Category: Biology Authors: Tags: Biol Trace Elem Res Source Type: research
Publication date: Available online 26 June 2019Source: Process BiochemistryAuthor(s): Sujatha Peela, Veeranki Girijashankar, Sunil Prasad Dhanunjay Ponamgi, Nagavalli Mandali, Ganji Purnachandra NagarajAbstractA new tetracycline analogue SBR-22 was isolated using bioactivity guided screening of the Streptomyces psammoticus 125-vr, from sea residues of the Visakhapatnam coast of South India. Based on spectral data, the name and structure of the antibiotic SBR-22 were identified as 1,5-dihydroxy- 5-methyl- 7- (N,N-dimethyl) amino- 6,8,11,12- tetraoxo- 7,9,10 –hexahydro- naphthacene. Unlike the standard oxytetracycline ...
Source: Process Biochemistry - Category: Biochemistry Source Type: research
We examined whether the high charge on ZmD32 would allow this defensin to retain activity in media with elevated salt concentrations. ZmD32 inhibited C. albicans, C. auris, C. glabrata, C. krusei, C. parapsilosis, and C. tropicalis growth with IC50 values ranging from 0.7 to 3.0 in ½ PDB medium containing 100 mM NaCl. In contrast, NaD1 was only active against C. parapsilosis and C. tropicalis with IC50 values of 3.4 and 1.3 μM, respectively, in medium with added NaCl. ZmD32 also retained activity against E. coli when NaC1 concentrations were raised to 100 mM while NaD1 did not (Table 1). For C. albicans and C. kr...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
Conclusion In conclusion, aqueous extracts of C. ferruginea leaves showed antimicrobial activity due to the presence of hydroquinone and caffeic acid methyl ester. This supports its traditional use for infections and confirmed that the active molecules are water-soluble. Author Contributions KK, SP, LVP, and WL conceived and designed the experiments. SP, KK, M-RY, and J-GL performed the experiments. SP, LVP, WL, M-RY, J-GL, and Z-HJ analyzed the data. WL and Z-HJ contributed reagents, materials, and analysis tools. KK, SP, WL, M-RY, Z-HJ, and LVP contributed to the writing of the manuscript. All authors contributed to m...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
Raquel Ferrer-Espada1,2, Xiaojing Liu1,2, Xueping Sharon Goh1,2 and Tianhong Dai1,2* 1Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States 2Vaccine &Immunotherapy Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States Polymicrobial biofilms, in which mixed microbial species are present, play a significant role in persistent infections. Furthermore, polymicrobial biofilms promote antibiotic resistance by allowing interspecies transfer of antibiotic resistance genes. In the present study, we investigated the effec...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
Mariana Girão1,2, Inês Ribeiro1, Tiago Ribeiro1, Isabel C. Azevedo1, Filipe Pereira1, Ralph Urbatzka1, Pedro N. Leão1 and Maria F. Carvalho1* 1Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Porto, Portugal 2Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal Nature is the major reservoir of biologically active molecules. The urgent need of finding novel molecules for pharmaceutical application is prompting the research of underexplored environments, such as marine ecosystems. Here, we investigated cultivable actinobacteria asso...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
In conclusion, we demonstrated that the selective boosting of lung innate immunity is a conceptually advantageous approach for improving the effectiveness of antibiotic treatment and fighting antibiotic-resistant bacteria. Introduction Pneumonia constitutes a major cause of death, morbidity and health resource use worldwide. The main causative agents identified in adult patients hospitalized for community-acquired pneumonia (CAP) are viruses (in 27–30% of cases, the most common being rhinovirus, influenza and coronavirus) and bacteria (14–23% of cases, with a marked predominance of Streptococcus pneumonia...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
ConclusionThese findings might effectively help to avert the severe complications of diabetic foot infections (DFIs) besides our endeavors to find new antimicrobial wound dressings.
Source: Diabetes and Metabolic Syndrome: Clinical Research and Reviews - Category: Endocrinology Source Type: research
In this study, we evaluated in vitro bactericidal activity of olanexidine gluconate using time-kill assay against various bacteria, mycobacteria, and fungi. With the exception of Burkholderia cepacia and Mycobacterium spp., 1.5% olanexidine gluconate exhibited fast-acting (
Source: Biological and Pharmaceutical Bulletin - Category: Drugs & Pharmacology Authors: Tags: Biol Pharm Bull Source Type: research
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