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Biomedica : Revista Del Instituto... Jun 2012Acinetobacter skin and soft tissue infection outside of the traumatic wound setting are rare occurrences. The majority of cases occur in the presence of significant...
Acinetobacter skin and soft tissue infection outside of the traumatic wound setting are rare occurrences. The majority of cases occur in the presence of significant comorbilities and by Acinetobacter baumanii. Herein a case is reported of community-onset, health-care-associated, non-traumatic cellulitis caused by Acinetobacter, species junii-johnsonii with bacteremia. This is the first reported case of Acinetobacter junii-johnsonii skin and soft tissue infection. Hemorrhagic bullae might be one of the clinical features of Acinetobacter cellulitis.
Topics: Acinetobacter; Acinetobacter Infections; Adenocarcinoma; Anti-Bacterial Agents; Bacteremia; Cellulitis; Coinfection; Community-Acquired Infections; Drug Therapy, Combination; Humans; Male; Methicillin-Resistant Staphylococcus aureus; Middle Aged; Opportunistic Infections; Prostatic Neoplasms; Serratia Infections; Serratia marcescens; Shock, Septic; Spinal Cord Injuries; Spinal Fractures; Staphylococcal Infections; Thoracic Vertebrae; Urinary Tract Infections
PubMed: 23242290
DOI: 10.1590/S0120-41572012000300004 -
Cureus Nov 2021genus includes multiple species, most notably that constitutes a common cause of nosocomial infections worldwide, particularly in patients with underlying...
genus includes multiple species, most notably that constitutes a common cause of nosocomial infections worldwide, particularly in patients with underlying immunodeficiency and risk factors (e.g., prior broad-spectrum antibiotic therapy, central venous catheter, mechanical ventilation). is a very rare human pathogen that is particularly associated with outbreaks of sepsis in immunocompromised neonates and pediatric oncology patients and rarely in immunocompromised adults. To our knowledge, this is the first case report of cavitary pneumonia with bacteremia secondary to in a patient with systemic lupus erythematosus (SLE).
PubMed: 34976481
DOI: 10.7759/cureus.19711 -
Colloids and Surfaces. B, Biointerfaces Nov 2011The immobilization of desired bacteria onto material was usually performed in synthetic media. The aim of this study was to test the immobilization of phosphate...
The immobilization of desired bacteria onto material was usually performed in synthetic media. The aim of this study was to test the immobilization of phosphate (P)-accumulating bacteria Acinetobacter junii onto natural zeolitized tuff (NZ) in the raw or sterilized municipal wastewater containing the common bacteria Escherichia coli and Enterococcus faecalis and the performance of immobilized A. junii in the same type of wastewater. In the sterilized wastewater which contained the mixture of A. junii, E. coli and E. faecalis, the A. junii was selectively immobilized onto NZ in significantly higher numbers than E. coli and E. faecalis. The A. junii added in the form of bioparticles to the wastewater containing E. coli and E. faecalis, multiplied and removed P from wastewater. The P removal from wastewater was a function of biomass of P-accumulating bacteria and not the amount of NZ or bioparticles used. The performance of A. junii was significantly better in membrane filtered than in autoclaved wastewater. The experiments that were performed in raw non sterilized wastewater showed that A. junii can be successfully immobilized onto NZ in competition with natively present heterotrophic bacteria, retain its metabolic activity and successfully remove P from such water, which makes this technology feasible from biotechnological aspect.
Topics: Acinetobacter; Enterococcus faecalis; Escherichia coli; Phosphates; Waste Disposal, Fluid; Zeolites
PubMed: 21764269
DOI: 10.1016/j.colsurfb.2011.06.033 -
Bioresource Technology Dec 2019The study aimed to evaluate biopolymer production using two bacterial strains, Acinetobacter junii BP25 and Aeromonas hydrophila ATCC 7966, and their co-culture. Batch...
The study aimed to evaluate biopolymer production using two bacterial strains, Acinetobacter junii BP25 and Aeromonas hydrophila ATCC 7966, and their co-culture. Batch experiments were evaluated using acetate and butyrate as carbon sources in feast and famine strategy. Feast phase was studied using carbon, nitrates and phosphate in the ratio of 100:8:1 and famine phase was limited with the phosphate and nitrates. Co-culture resulted in highest specific growth rate (0.30 h) in the feast phase and the famine phase accounted the maximum polyhydroxybutyrate (PHB) accumulation (2.46 g PHB/L), followed by Acinetobacter junii BP25 (0.25 h and 1.82 g PHB/L) and Aeromonas hydrophila ATCC 7966 (0.17 h and 1.12 g PHB/L). Fourier-transform infrared spectroscopy (FT-IR) and nuclear magnetic resonance spectroscopy (NMR) structural analysis confirmed as PHB. PHB production using the co-culture could be integrated with biohydrogen process using volatile fatty acids (VFA) as a carbon source in the biorefinery framework.
Topics: Acinetobacter; Aeromonas hydrophila; Bioreactors; Butyrates; Coculture Techniques; Hydroxybutyrates; Polyesters; Spectroscopy, Fourier Transform Infrared
PubMed: 31494436
DOI: 10.1016/j.biortech.2019.122062 -
Microorganisms Feb 2023Waste oil pollution and the treatment of oily waste present a challenge, and the exploitation of microbial resources is a safe and efficient method to resolve these...
Waste oil pollution and the treatment of oily waste present a challenge, and the exploitation of microbial resources is a safe and efficient method to resolve these problems. Lipase-producing microorganisms can directly degrade waste oil and promote the degradation of oily waste and, therefore, have very significant research and application value. The isolation of efficient oil-degrading strains is of great practical significance in research into microbial remediation in oil-contaminated environments and for the enrichment of the microbial lipase resource library. In this study, WCO-9, an efficient oil-degrading bacterium, was isolated from an oil-contaminated soil using olive oil as the sole carbon source, and its enzyme activity of ρ-nitrophenyl decanoate (ρ-NPD) decomposition was 3000 U/L. The WCO-9 strain could degrade a variety of edible oils, and its degradation capability was significantly better than that of the control strain, ATCC 17908. Comparative pan-genome and lipid degradation pathway analyses indicated that isolated from the same environment shared a similar set of core genes and that the species accumulated more specific genes that facilitated resistance to environmental stresses under different environmental conditions. WCO-9 has accumulated a complete set of oil metabolism genes under a long-term oil-contamination environment, and the compact arrangement of abundant lipase and lipase chaperones has further strengthened the ability of the strain to survive in such environments. This is the main reason why WCO-9 is able to degrade oil significantly more effectively than ATCC 17908. In addition, WCO-9 possesses a specific lipase that is not found in homologous strains. In summary, WCO-9, with a complete triglyceride degradation pathway and the specific lipase gene, has great potential in environmental remediation and lipase for industry.
PubMed: 36838372
DOI: 10.3390/microorganisms11020407 -
Brazilian Journal of Microbiology :... Jan 2019This study explores the potential of lead resistant bacterium Acinetobacter junii Pb1 for adsorption/accumulation of lead using various techniques. In the present work,...
This study explores the potential of lead resistant bacterium Acinetobacter junii Pb1 for adsorption/accumulation of lead using various techniques. In the present work, growth of A. junii Pb1 was investigated in the presence of a range of Pb(II) concentrations (0, 100, 250, 500, and 1000 mg l). Lead was found to have no toxic effect on the growth of A. junii Pb1 at 100 and 250 mg l concentrations. However, further increase in Pb(II) concentration (500 mg l) showed increase in lag phase, though growth remained unaffected and significant growth inhibition was observed when concentration was increased to 1000 mg l. Same was confirmed by the observations of flow cytometry. Further, the effect of Pb(II) on A. junii Pb1 was evaluated by using fluorescence microscopy, spectrofluorimetry, and flow cytometry. The spectrofluorimetry and fluorescence microscopy results revealed the accumulation of Pb(II) inside the bacterial cells as evident by green fluorescence due to lead binding fluorescent probe, Leadmium Green AM dye. Flow cytometry observations indicate an increase in cell size and granularity of exposure to lead. Thus, present work provides a new understanding of Pb(II) tolerance in A. junii Pb1 and its potential use in remediation of lead from contaminated soil.
Topics: Acinetobacter; Biodegradation, Environmental; Flow Cytometry; Lead
PubMed: 30637583
DOI: 10.1007/s42770-019-00041-1 -
Microbiology Resource Announcements Mar 2019We report here the draft genome sequence of Acinetobacter junii MHI21018, isolated in 2009 from bovine colostrum. The draft genome sequence is composed of 3,267,995 bp,...
We report here the draft genome sequence of Acinetobacter junii MHI21018, isolated in 2009 from bovine colostrum. The draft genome sequence is composed of 3,267,995 bp, has a GC content of 38.54%, and was assembled into 114 contigs (contig size, >500 bp) with an value of 72,566 bp.
PubMed: 30863829
DOI: 10.1128/MRA.01700-18 -
European Journal of Clinical... Oct 2012We investigated the clinical characteristics and outcomes of 43 patients with Acinetobacter junii bacteremia at a 2,500-bed tertiary care center in northern Taiwan....
We investigated the clinical characteristics and outcomes of 43 patients with Acinetobacter junii bacteremia at a 2,500-bed tertiary care center in northern Taiwan. These organisms were confirmed to the species level by an array assay and 16S rRNA gene sequence analysis. The antimicrobial susceptibilities of the 43 A. junii isolates to 13 agents were determined using the agar dilution method. Susceptibility testing for tigecycline was determined using the broth microdilution method. Most of the patients were hospital-acquired (n = 36, 83.7 %) or healthcare facility-related infections (n = 6, 13.9 %), and 55.8 % had impaired immunity. Central venous access devices were present in 35 (81.4 %) patients; among the total of 43 patients with A. junii bacteremia, 8 patients were diagnosed as catheter-related bloodstream infection and 19 patients were diagnosed as catheter-associated bloodstream infection. Shock requiring inotropic agents occurred in 2 patients (4.6 %). Most patients developed bacteremia in general wards (n = 36, 83.7 %). The overall in-hospital mortality rate was low (7 %), despite the low rate of removal of central venous devices, low rate of holding usage of original central venous devices, and high rate of inappropriate antimicrobial regimens. Carbapenems, fluoroquinolones, and amikacin had potent activity (>95 % susceptible rate) against A. junii isolates. Interestingly, 35 % of the A. junii isolates were resistant to colistin. Tigecycline exhibited low minimum inhibitory concentration (MIC) values (range, 0.06-2 μg/ml, MIC(90), 1 μg/ml) against the A. junii isolates.
Topics: Acinetobacter; Acinetobacter Infections; Adult; Aged; Amikacin; Anti-Bacterial Agents; Bacteremia; Carbapenems; Catheter-Related Infections; Central Venous Catheters; Colony Count, Microbial; Cross Infection; Drug Resistance, Bacterial; Female; Hospital Mortality; Humans; Incidence; Male; Microbial Sensitivity Tests; Middle Aged; Minocycline; RNA, Ribosomal, 16S; Sequence Analysis, RNA; Taiwan; Tertiary Care Centers; Tigecycline
PubMed: 22562410
DOI: 10.1007/s10096-012-1622-x -
The Journal of Antimicrobial... Feb 2015
Topics: Acinetobacter; Acinetobacter calcoaceticus; Animals; Environmental Microbiology; Humans; Livestock; beta-Lactamases
PubMed: 25349061
DOI: 10.1093/jac/dku405 -
Journal of Clinical Microbiology Jul 2002Acinetobacter spp. are considered to be emerging nosocomial pathogens. Acinetobacter junii is a rare cause of disease in humans and was associated mainly with bacteremia...
Acinetobacter spp. are considered to be emerging nosocomial pathogens. Acinetobacter junii is a rare cause of disease in humans and was associated mainly with bacteremia in preterm infants and pediatric oncologic patients. In this report we describe a case of catheter-related infection by A. junii in an adult oncologic patient. Application of molecular methods for precise species identification of Acinetobacter spp. will help to further clarify their role as human pathogens.
Topics: Acinetobacter; Acinetobacter Infections; Adult; Catheters, Indwelling; Cross Infection; DNA, Bacterial; DNA, Ribosomal; Female; Humans; Polycythemia Vera; RNA, Bacterial; RNA, Ribosomal, 16S; Sepsis
PubMed: 12089313
DOI: 10.1128/JCM.40.7.2696-2697.2002