scholarly journals Bacteria From the Multi-Contaminated Tinto River Estuary (SW, Spain) Show High Multi-Resistance to Antibiotics and Point to Paenibacillus spp. as Antibiotic-Resistance-Dissemination Players

2020 ◽  
Vol 10 ◽  
Author(s):  
Benedito Eduardo-Correia ◽  
Héctor Morales-Filloy ◽  
José P. Abad
Keyword(s):  
Antibiotic Resistance ◽  
River Estuary ◽  
Resistance To Antibiotics ◽  
Tinto River ◽  
Sw Spain

scholarly journals Natural and anthropic pollution episodes during the Late Holocene evolution of the Tinto River estuary (SW Spain)

2021 ◽  
Vol 85 (2) ◽  
pp. 113-123
Author(s):  
Marta Arroyo ◽  
Francisco Ruiz ◽  
María Luz González-Regalado ◽  
Joaquín Rodríguez Vidal ◽  
Luis Miguel Cáceres ◽  
...  
Keyword(s):  
Late Holocene ◽  
River Estuary ◽  
The Holocene ◽  
Tinto River ◽  
Sw Spain ◽  
Holocene Transgression ◽  
New Period ◽  
Paleoenvironmental Evolution ◽  
Two Peaks ◽  
The Impact

This paper investigates the paleoenvironmental evolution of a core extracted in the middle sector of the Tinto River estuary, SW Spain, one of the most polluted areas in the world due to mining over thousands of years (>4 kyr BP) and recent industrial discharges. This evolution includes alluvial sands (>6.4 cal kyr BP), bioclastic sands and silts deposited in subtidal and intertidal channels during and after the Holocene transgression maximum (6.4-4.3 cal kyr BP), the sedimentation of clayey-sandy silts in low and high marshes during the last 2.4 kyr BP and a final anthropic filling. Three sharp peaks of pollution have been detected, representing a) a natural origin during the Holocene transgression; b) the impact of the first mining activities (~4.5 cal kyr BP); and c) the effect of industrial discharge and a new period of mining activity throughout the 19th and 20th centuries. Foraminifera, ostracods and molluscs disappeared during these last two peaks.

Impact of millennial mining activities on sediments and microfauna of the Tinto River estuary (SW Spain)

2008 ◽  
Vol 56 (7) ◽  
pp. 1258-1264 ◽  
Author(s):  
F. Ruiz ◽  
J. Borrego ◽  
M.L. González-Regalado ◽  
N. López González ◽  
B. Carro ◽  
...  
Keyword(s):  
River Estuary ◽  
Mining Activities ◽  
Tinto River ◽  
Sw Spain

ON THE ISSUE OF THE SPREAD OF AEROMONAS BACTERIA IN THE ENVIRONMENT AND CLINICAL MATERIAL

2018 ◽  
pp. 54-57
Author(s):  
L.V. Kataeva ◽  
T.F. Stepanova ◽  
O.V. Posoyuznykh ◽  
V.V. Tashlanova ◽  
N.F. Karpukhina ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Species Diversity ◽  
Food Products ◽  
Water Bodies ◽  
Clinical Material ◽  
Seasonal Fluctuations ◽  
Infectious Process ◽  
Biological Safety ◽  
Resistance To Antibiotics ◽  
Environmental Objects

The analysis of cases of detection of bacteria of the genus Aeromonas in clinical material from various loci of patients of medical organizations was carried out. Their species diversity, isolation in monoculture and associations, resistance to antibiotics and spring-autumn rises indicate the etiological significance of these microorganisms in the infectious process. To improve the biological safety of aquatic biotopes, it is important to study their microbiocenosis, in particular, the circulation of bacteria of the genus Aeromonas, in order to obtain information on pathogenic properties, antibiotic resistance, and seasonal fluctuations. To prevent the spread of Aeromonas infections, it is necessary to carry out sanitary and bacteriological studies of water bodies, environmental objects and food products.

scholarly journals Biocidal Agents Used for Disinfection Can Enhance Antibiotic Resistance in Gram-Negative Species

Antibiotics ◽  
2018 ◽  
Vol 7 (4) ◽  
pp. 110 ◽  
Author(s):  
Günter Kampf
Keyword(s):  
Antibiotic Resistance ◽  
Efflux Pump ◽  
Health Benefit ◽  
Cross Resistance ◽  
Gram Negative ◽  
Medline Search ◽  
Resistance To Antibiotics ◽  
Didecyldimethylammonium Chloride ◽  
Healthcare Associated ◽  
Sublethal Concentrations

Biocidal agents used for disinfection are usually not suspected to enhance cross-resistance to antibiotics. The aim of this review was therefore to evaluate the effect of 13 biocidal agents at sublethal concentrations on antibiotic resistance in Gram-negative species. A medline search was performed for each biocidal agent on antibiotic tolerance, antibiotic resistance, horizontal gene transfer, and efflux pump. In cells adapted to benzalkonium chloride a new resistance was most frequently found to ampicillin (eight species), cefotaxime (six species), and sulfamethoxazole (three species), some of them with relevance for healthcare-associated infections such as Enterobacter cloacae or Escherichia coli. With chlorhexidine a new resistance was often found to ceftazidime, sulfamethoxazole and imipenem (eight species each) as well as cefotaxime and tetracycline (seven species each). Cross-resistance to antibiotics was also found with triclosan, octenidine, sodium hypochlorite, and didecyldimethylammonium chloride. No cross-resistance to antibiotics has been described after low level exposure to ethanol, propanol, peracetic acid, polyhexanide, povidone iodine, glutaraldehyde, and hydrogen peroxide. Taking into account that some biocidal agents used in disinfectants have no health benefit (e.g., in alcohol-based hand rubs) but may cause antibiotic resistance it is obvious to prefer products without them.

scholarly journals Pseudomonas aeruginosa serotypes and resistance to antibiotics from wound swabs

2015 ◽  
Vol 72 (11) ◽  
pp. 996-1003 ◽  
Author(s):  
Natasa Stankovic-Nedeljkovic ◽  
Branislav Tiodorovic ◽  
Branislava Kocic ◽  
Vojislav Ciric ◽  
Marko Milojkovic ◽  
...  
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Antibiotic Resistance ◽  
Susceptibility Testing ◽  
Wound Infections ◽  
Common Cause ◽  
Resistance To Antibiotics ◽  
Mucous Membranes ◽  
Common Serotypes ◽  
Antibiotics Susceptibility

Introduction/Aim. Pseudomonas aeruginosa (P. aeruginosa) is the most common cause of wound infections, following the disruption of the skin or mucous membranes integrity. The aim of this study was to analyze of the presence P. aeruginosa in wound swabs, antibiotics susceptibility testing, determination of the minimum inhibitory concentrations (MICs) of antibiotics, testing of the metallo-?-lactamases (MBLs) production, isolates serotyping and analysis of the most common serotypes resistance. Methods. A total of 90 outpatients and 55 intpatients wound swabs were cultivated. Wound swabs were taken from the patients with wound infections symptoms. Antibiotics susceptibility testing was performed to: meropenem, imipenem, piperacillin-tazobactam, ceftazidime, cefepime, amikacin, gentamicin, netilmicin, ofloxacin, ciprofloxacin and colistin (HiMedia). Polyvalent and monovalent antisera for agglutination (Biorad) were used in P. aeruginosa agglutination. Results. P. aeruginosa was isolated from 36.55% wound swabs (36.66% of the inpatients wounds and 36.36% of the outpatients). The analyzed isolates showed the highest degree of sensitivity to colistin (100%) and meropenem (93.44%) and the lowest to cefepime (19.54%). The majority of the inpatients isolates had 12 ?g/mL (28.57%) MIC for piperacillin-tazobactam and 16 ?g/mL (28.57%) for the outpatients. The most common MICs for ciprofloxacin were 0.19 ?g/mL (31.81%) for the nosocomial isolates, and 0.25 ?g/mL (28.57%) for the outpatients? ones. The most common MICs for amikacin of the nosocomial isolates were 6 ?g/ml (40.9%), and for the outpatients ones 4 ?g/mL (33.33%). Five (9.43%) isolates produced MBLs. The most common serotypes were P11 (22.64%), P6 (15.09%) and P1 (11.32%). Conclusion. Neither the increased presence of P. aeruginosa was noticed in wounds swabs, nor the antibiotic resistance in the nosocomial isolates compared to those from outpatients. The analyzed isolates had the higest sensitivity to colistin and meropenem, and the lowest to cefepime.

scholarly journals CHARACTERISTICS OF ANTIBIOTIC RESISTANCE OF BACTERIA ISOLATED FROM INFANTS – PATIENTS OF NATIONAL HOSPITAL PEDIATRICS HANOI, VIETNAM

2017 ◽  
pp. 51-53
Author(s):  
T.F. Stepanova ◽  
L.V. Kataeva ◽  
A.P. Rebeshchenko ◽  
Le Thanh Hai ◽  
Khu Thi Khanh Dung ◽  
...  
Keyword(s):  
Intensive Care Unit ◽  
Antibiotic Resistance ◽  
Intensive Care ◽  
High Resistance ◽  
Gram Negative Bacteria ◽  
National Hospital ◽  
Gram Negative ◽  
Resistance To Antibiotics ◽  
Pure Block ◽  
Carbapenem Antibiotic

The results of studies of resistance to antibiotics microflora isolated from mucous pharynx and rectum of patients intensive care unit newborns of National Hospital of Pediatrics, Hanoi are presented. It is shown that gram-negative bacteria isolated from children have a high resistance to penicillins, cephalosporins and carbapenem. Antibiotic resistance of bacteria isolated from children receiving treatment in «pure» block did not differ from sustainability of the strains, selected from children in «dirty» block.

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