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diabetic foot aureus

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https://www.readbyqxmd.com/read/28013263/invasive-systemic-infection-after-hospital-treatment-for-diabetic-foot-ulcer-risk-of-occurrence-and-effect-on-survival
#1
Shey-Ying Chen, John M Giurini, Adolf W Karchmer
BACKGROUND: Diabetic foot ulcers (DFUs) threaten limbs and prompt hospitalization. After hospitalization, remote-site invasive systemic infection related to DFU (DFU-ISI) may occur. The characteristics of DFU-ISIs and their effect on mortality risk have not been defined. METHODS: We conducted a retrospective cohort study of 819 diabetic patients hospitalized for treatment of 1212 unique DFUs during a 9-year period. We defined the index ulcer as that present at the first (index) DFU admission to our hospital...
February 1, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/27920754/culture-based-screening-of-aerobic-microbiome-in-diabetic-foot-subjects-and-developing-non-healing-ulcers
#2
Saba Noor, Jamal Ahmad, Iqbal Parwez, Maaz Ozair
The study was carried on diabetic foot patients to deduce clinical attributes, the occurrence of the range of aerobic microbial flora and to assess their comparative in vitro susceptibility to the customarily used antimicrobials. We also studied the potential risk factors involved in the development of non-healing ulcers. A total of 87 organisms were isolated from 70 specimens, including Escherichia coli (19.5%) among the Gram-negative and Staphylococcus aureus (18.4%) among the Gram-positive as the predominant aerobes explored...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27902390/virulence-determinants-in-clinical-staphylococcus-aureus-from-monomicrobial-and-polymicrobial-infections-of-diabetic-foot-ulcers
#3
Kavitha Shettigar, Spoorthi Jain, Deepika V Bhat, Raviraj Acharya, Lingadakai Ramachandra, Kapaettu Satyamoorthy, Thokur Sreepathy Murali
Antibiotic resistance in Staphylococcus aureus is a major public health concern, and methicillin-resistant S. aureus has emerged as an important pathogen. We characterized S. aureus isolates from monomicrobial and polymicrobial wound infections from 200 diabetic individuals with foot ulcers to understand their underlying diversity and pathogenicity. Staphylococcal cassette chromosome mec typing was performed, and genes coding for production of biofilm, Panton-Valentine leukocidin, toxic shock syndrome toxin and leukotoxins DE and M were screened...
December 2016: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/27898266/methicillin-resistant-staphylococcus-aureus-in-foot-osteomyelitis
#4
Chester N Ashong, Shazia A Raheem, Andrew S Hunter, Cezarina Mindru, Neal R Barshes
BACKGROUND: Conflicting studies exist regarding the impact of methicillin-resistant Staphylococcus aureus (MRSA) on increased time to wound healing, future need for surgical procedures, and likelihood of treatment failure in patients with diabetic foot osteomyelitis. The purpose of this study is to determine the overall significance of MRSA in predicting treatment failure in bone infections of the foot and to determine an appropriate pre-operative and empiric post-operative antibiotic regimen...
February 2017: Surgical Infections
https://www.readbyqxmd.com/read/27720361/link-between-nasal-carriage-of-staphylococcus%C3%A2-aureus-and-infected-diabetic-foot-ulcers
#5
C Dunyach-Remy, C Courtais-Coulon, C DeMattei, N Jourdan, S Schuldiner, A Sultan, C Carrière, S Alonso, A Sotto, J-P Lavigne
AIMS: Nasal carriage of Staphylococcus aureus in diabetic patients may be a risk factor for diabetic foot lesion infections. The aims of this study were to compare the genotypic profiles of S. aureus strains isolated from nares and diabetic foot ulcers (DFUs) using microarray technology. METHODS: Patients were included if they were admitted for diabetic foot infection (DFI) at any of three diabetology departments of Montpellier and Nîmes University Hospitals between 1 September 2010 to 30 June 2012...
October 5, 2016: Diabetes & Metabolism
https://www.readbyqxmd.com/read/27686306/antimicrobial-susceptibility-of-bacterial-and-fungal-infections-among-infected-diabetic-patients
#6
Ayman Khalid Johargy
Objective: To determine the antimicrobial susceptibility of the most common bacterial and fungal infections among infected diabetic patients. Methods: This study was conducted at the Umm Al-Qura University, Makkah, Saudi Arabia, from June 2011 to June 2012, and comprised specimens collected from diabetics. Antibiotic susceptibility test using disc diffusion method was performed for bacterial isolates, and antifungal susceptibility test using colorimetric method for candida isolates...
October 2016: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/27638941/a-prophage-in-diabetic-foot-ulcer-colonizing-staphylococcus-aureus-impairs-invasiveness-by-limiting-intracellular-growth
#7
Jean-Philippe Rasigade, Catherine Dunyach-Rémy, Anaïs Sapin, Nourredine Messad, Sophie Trouillet-Assant, Céline Dupieux, Jean-Philippe Lavigne, Frédéric Laurent
The mechanisms that drive the transition from commensality to invasiveness in Staphylococcus aureus are poorly understood. We recently reported that >50% of S. aureus isolates from uninfected diabetic foot ulcers in French patients harbor a prophage, ROSA-like, that is absent from invasive isolates from diabetic foot infections, including osteomyelitis. Here we show that the ROSA-like insertion abolishes the ability of S. aureus to replicate within osteoblasts, the bone-forming cells, greatly reducing damage to infected cells...
November 15, 2016: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/27620475/development-of-a-novel-collagen-wound-model-to-simulate-the-activity-and-distribution-of-antimicrobials-in-soft-tissue-during-diabetic-foot-infection
#8
Bianca L Price, Andrew M Lovering, Frank L Bowling, Curtis B Dobson
Diabetes has major implications for public health, with diabetic foot ulcers (DFUs) being responsible for significant morbidity and mortality. A key factor in the development of nonhealing ulcers is infection, which often leads to the development of biofilm, gangrene, and amputation. A novel approach to treating DFUs is the local release of antibiotics from calcium sulfate beads. We have developed a novel model system to study and compare the release and efficacy of antibiotics released locally, using collagen as a substrate for biofilm growth and incorporating serum to mimic the biochemical complexity of the wound environment...
November 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27582729/staphylococcus-aureus-shifts-toward-commensalism-in-response-to-corynebacterium-species
#9
Matthew M Ramsey, Marcelo O Freire, Rebecca A Gabrilska, Kendra P Rumbaugh, Katherine P Lemon
Staphylococcus aureus-human interactions result in a continuum of outcomes from commensalism to pathogenesis. S. aureus is a clinically important pathogen that asymptomatically colonizes ~25% of humans as a member of the nostril and skin microbiota, where it resides with other bacteria including commensal Corynebacterium species. Commensal Corynebacterium spp. are also positively correlated with S. aureus in chronic polymicrobial diabetic foot infections, distinct from acute monomicrobial S. aureus infections...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27556897/epidemiology-of-methicillin-resistant-staphylococcus-aureus-diabetic-foot-infections-in-a-large-academic-hospital-implications-for-antimicrobial-stewardship
#10
Kelly R Reveles, Bryson M Duhon, Robert J Moore, Elizabeth O Hand, Crystal K Howell
INTRODUCTION: Diabetic foot infections (DFIs) are the leading cause of non-traumatic lower extremity amputations in the United States. Antimicrobials active against methicillin-resistant Staphylococcus aureus (MRSA) are recommended in patients with associated risk factors; however, limited data exist to support these recommendations. Due to the changing epidemiology of MRSA, and the consequences of unnecessary antibiotic therapy, guidance regarding the necessity of empirical MRSA coverage in DFIs is needed...
2016: PloS One
https://www.readbyqxmd.com/read/27532523/bacteriological-and-therapeutic-profile-of-diabetic-foot-infection-a-prospective-study-of-100-patients
#11
Mohamed Ben Moussa, Mehdi Khalfallah, Ilhem Boutiba Ben Boubaker, Ramzi Nouira, Amine Slim, Hichem Jerraya, Chadli Dziri
BACKGROUND: Identifying the infecting bacterial flora is one of the main rules to be followed to ensure the success of antibiotherapy in the treatment of the infected diabetic foot. The aim of the work was to define the bacteriological profile of the bacteria causing the infection of the diabetic foot at the surgery unit B of Charles Nicolle's hospital in Tunis and determine the prognostic factors of this condition. METHODS: It was an open prospective study. It concerned 100 diabetic patients operated on for diabetic foot infection...
February 2016: La Tunisie Médicale
https://www.readbyqxmd.com/read/27498987/guar-gum-as-a-new-antimicrobial-peptide-delivery-system-against-diabetic-foot-ulcers-staphylococcus-aureus-isolates
#12
Raquel Santos, Diana Gomes, Hermes Macedo, Diogo Barros, Catarina Tibério, Ana Salomé Veiga, Luís Tavares, Miguel Castanho, Manuela Oliveira
Diabetic patients frequently develop diabetic foot ulcers (DFUs), particularly those patients vulnerable to Staphylococcus aureus opportunistic infections. It is urgent to find new treatments for bacterial infections. The antimicrobial peptide (AMP) nisin is a potential candidate, mainly due to its broad spectrum of action against pathogens. Considering that AMP can be degraded or inactivated before reaching its target at therapeutic concentrations, it is mandatory to establish effective AMP delivery systems, with the natural polysaccharide guar gum being one of the most promising...
October 2016: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/27410468/bacteriophage-treatment-of-intransigent-diabetic-toe-ulcers-a-case-series
#13
R Fish, E Kutter, G Wheat, B Blasdel, M Kutateladze, S Kuhl
OBJECTIVE: Diabetic foot ulcer (DFU) infections are a growing public health problem, with increasing prevalence, poor response to antibiotics and bacterial resistance to traditional antimicrobials leading to increased morbidity and mortality. Bacteriophages (phages), the viruses that target specific bacteria, are one option for addressing bacterial infections, especially where antibiotics fail. Of particular value is a class of virulent staphylococcal phages that hit almost all Staphylococcus aureus, including most methicillin-resistant Staphylococcus aureus (MRSA) strains...
July 2016: Journal of Wound Care
https://www.readbyqxmd.com/read/27399775/staphylococcus-aureus-toxins-and-diabetic-foot-ulcers-role-in-pathogenesis-and-interest-in-diagnosis
#14
REVIEW
Catherine Dunyach-Remy, Christelle Ngba Essebe, Albert Sotto, Jean-Philippe Lavigne
Infection of foot ulcers is a common, often severe and costly complication in diabetes. Diabetic foot infections (DFI) are mainly polymicrobial, and Staphylococcus aureus is the most frequent pathogen isolated. The numerous virulence factors and toxins produced by S. aureus during an infection are well characterized. However, some particular features could be observed in DFI. The aim of this review is to describe the role of S. aureus in DFI and the implication of its toxins in the establishment of the infection...
2016: Toxins
https://www.readbyqxmd.com/read/27357184/virulence-potential-of-staphylococcus-aureus-strains-isolated-from-diabetic-foot-ulcers-among-patients-from-southern-poland
#15
Monika Pobiega, Iwona Myjak, Monika Pomorska-Wesolowska, Dorota Romaniszyn, Grzegorz Ziolkowski, Agnieszka Chmielarczyk, Joanna Macig, Anna Szczypta, Jadwiga Wójkowska-Mach
The prevalence of methicillin-resistant Staphylococcus aureus (MRSA) was investigated among infected diabetic foot ulcers in hospitalized and nonhospitalized patients in southern Poland to assess the virulence patterns and antimicrobial resistance among these strains. MRSA was detected in 10.3% of all studied isolates, from the hospitalized patients only. The rest of the isolates was methicillin susceptible. The minimal inhibitory concentration that inhibits 50% of bacterial isolates (MIC50) for vancomycin was 1...
2016: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/27339028/susceptibility-patterns-of-staphylococcus-aureus-biofilms-in-diabetic-foot-infections
#16
Carla Mottola, Carina S Matias, João J Mendes, José Melo-Cristino, Luís Tavares, Patrícia Cavaco-Silva, Manuela Oliveira
BACKGROUND: Foot infections are a major cause of morbidity in people with diabetes and the most common cause of diabetes-related hospitalization and lower extremity amputation. Staphylococcus aureus is by far the most frequent species isolated from these infections. In particular, methicillin-resistant S. aureus (MRSA) has emerged as a major clinical and epidemiological problem in hospitals. MRSA strains have the ability to be resistant to most β-lactam antibiotics, but also to a wide range of other antimicrobials, making infections difficult to manage and very costly to treat...
June 23, 2016: BMC Microbiology
https://www.readbyqxmd.com/read/27307703/evaluation-of-wound-healing-properties-of-bioactive-aqueous-fraction-from-moringa-oleifera-lam-on-experimentally-induced-diabetic-animal-model
#17
Abubakar Amali Muhammad, Palanisamy Arulselvan, Pike See Cheah, Farida Abas, Sharida Fakurazi
Diabetic foot ulcer is a serious complication of diabetes, which affects a significant percentage (15%) of diabetics and up to 15%-24% of those affected may require amputation. Therefore, the economic burden of diabetic foot ulcers is enormous and is associated with high cost of treatment and prolongs hospitalization. The present study was conducted to evaluate antibacterial and in vivo wound healing activities of an aqueous fraction of Moringa oleifera on a diabetic condition. Antibacterial activity testing was carried out using agar well and tube dilution techniques...
2016: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/27252859/diabetic-foot-complicated-by-vertebral-osteomyelitis-and-epidural-abscess
#18
Alessandro Mantovani, Maddalena Trombetta, Chiara Imbriaco, Riccardo Rigolon, Lucia Mingolla, Federica Zamboni, Francesca Dal Molin, Dario Cioccoloni, Viola Sanga, Massimiliano Bruti, Enrico Brocco, Michela Conti, Giorgio Ravenna, Fabrizia Perrone, Vincenzo Stoico, Enzo Bonora
UNLABELLED: Vertebral osteomyelitis (or spondylodiscitis) is steadily increasing in Western countries and often results from hematogenous seeding, direct inoculation during spinal surgery, or contiguous spread from an infection in the adjacent soft tissue. We present the case of a 67-year-old white patient with type 2 diabetes who went to Hospital for high fever, back pain, and worsening of known infected ulcers in the left foot. Despite intravenous antibiotic treatment and surgical debridement of the foot infection, high fever and lower back pain continued...
2016: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/27175494/-susceptibilities-of-multidrug-resistant-pathogens-responsible-for-complicated-skin-and-soft-tissue-infections-to-standard-bacteriophage-cocktails
#19
Aycan Gündoğdu, Hüseyin Kılıç, Ayşegül Ulu Kılıç, Mzia Kutateladze
Skin and soft tissue infections (SSTIs) may represent a wide clinical spectrum from cellulitis to high-mortality associated necrotizing fasciitis. Limitations in therapy due to the multiple drug resistance, leads to increase in the morbidity and mortality rates, especially in complicated SSTIs such as diabetic foot, decubitus, and surgical wound infections. Therefore, alternative treatment strategies other than antibiotics are needed in appropriate clinical conditions. "Bacteriophage therapy", which is an old method and has been used as part of standard treatment in some countries such as Georgia and Russia, has again become popular worldwide...
April 2016: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/27097700/the-most-prevalent-organism-in-diabetic-foot-ulcers-and-its-drug-sensitivity-and-resistance-to-different-standard-antibiotics
#20
Ayesha Nageen
OBJECTIVE: To find the most prevalent organism in diabetic foot ulcers and its drug sensitivity and resistance to different standard antibiotics. STUDY DESIGN: Adescriptive and cross-sectional study. PLACE AND DURATION OF STUDY: Ward 7, Jinnah Postgraduate Medical Center, Karachi, from December 2010 to December 2012. METHODOLOGY: Ninety-five diabetic patients with infected foot wounds of Wegener grade 2 - 5 who had not received any previous antibiotics were included in the study by consecutive sampling...
April 2016: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
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