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https://www.readbyqxmd.com/read/28198085/the-alternative-sigma-factor-%C3%AF-b-plays-a-crucial-role-in-adaptive-strategies-of-clostridium-difficile-during-gut-infection
#1
Nicolas Kint, Claire Janoir, Marc Monot, Sandra Hoys, Olga Soutourina, Bruno Dupuy, Isabelle Martin-Verstraete
Clostridium difficile is a major cause of diarrhoea associated with antibiotherapy. Exposed to stresses in the gut, C. difficile can survive by inducing protection, detoxification, and repair systems. In several firmicutes, most of these systems are controlled by the general stress response involving σ(B) . In this work, we studied the role of σ(B) in the physiopathology of C. difficile. We showed that the survival of the sigB mutant during the stationary phase was reduced. Using a transcriptome analysis, we showed that σ(B) controls the expression of ∼25% of genes including genes involved in sporulation, metabolism, cell surface biogenesis, and the management of stresses...
February 15, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/28193826/the-nlrp3-inflammasome-has-a-critical-role-in-peritoneal-dialysis-related-peritonitis
#2
Nicolas Hautem, Johann Morelle, Amadou Sow, Cyril Corbet, Olivier Feron, Eric Goffin, François Huaux, Olivier Devuyst
Bacterial peritonitis remains the main cause of technique failure in peritoneal dialysis (PD). During peritonitis, the peritoneal membrane undergoes structural and functional alterations that are mediated by IL-1β The NLRP3 inflammasome is a caspase-1-activating multiprotein complex that links sensing of microbial and stress products to activation of proinflammatory cytokines, including IL-1β The potential roles of the NLRP3 inflammasome and IL-1β in the peritoneal membrane during acute peritonitis have not been investigated...
February 13, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28161407/a-novel-mutation-in-tap1-gene-leading-to-mhc-class-i-deficiency-report-of-two-cases-and-review-of-the-literature
#3
Damla Hanalioglu, Deniz Cagdas Ayvaz, Tuba Turul Ozgur, Mirjam van der Burg, Ozden Sanal, Ilhan Tezcan
Major histocompatibility complex (MHC) class I deficiency syndrome is a rare primary immunodeficiency caused by mutations in the peptide transporter complex associated with antigen presentation (TAP) gene which plays a crucial role in intracellular peptide antigen presentation. A few cases have been reported to date. Recurrent sinopulmonary infections and skin ulcers are main characteristics of the syndrome. Here we report two siblings diagnosed with TAP1 deficiency syndrome associated only with recurrent sinopulmonary infections with the description of a novel mutation leading to a premature stop codon in TAP1 gene and review of the relevant literature...
February 1, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28135007/supraglenoid-tubercle-fractures-repair-with-transverse-locking-compression-plates-in-4-horses
#4
B J Ahern, I P M Bayliss, S T Zedler, L M Getman, D W Richardson
OBJECTIVE: To report on a series of 4 horses with supraglenoid tubercle fractures repaired with locking compression plates. STUDY DESIGN: Case series. ANIMAL: Four horses ranging in age from 6 weeks to 20 months and weighing from 121 to 425 kg with supraglenoid tubercle fractures of 1 day to 6 weeks in duration. METHODS: Supraglenoid tubercle fractures were reduced and stabilized with transversely positioned locking compression plate(s) with and without additional tension band wiring...
January 30, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28131104/a-simplified-technique-for-drainage-of-chronic-calcified-pleural-empyema
#5
Sani Rabiou, Hama Younssa, James Didier, Magagi Ibrahim, Adamou Harissou, Ousseini Adakal, Rachid Sani
Chronic pleural pocket has well-known diagnosis and treatment principles since first described by Hippocrates 2,400 years ago. However, its treatment remains constant even though its causes, severity during management, and terrain vary considerably. In well-structured health care systems, posttuberculous empyema has become rare; its well-codified medical treatment relies on early diagnosis and adapted antibiotherapy, punctures/drainage, and appropriate intrapleural antifibrinolytics. In developing countries, a poor health organizational system increases the incidence of pleural pocket, which can progress until surgery is indicated...
January 28, 2017: Thoracic and Cardiovascular Surgeon
https://www.readbyqxmd.com/read/28126017/ruptured-aortic-aneurysm-due-to-mycobacterium-bovis-bcg-with-a-delayed-bacteriological-diagnosis-due-to-false-negative-result-of-the-mpb-64-immunochromatographic-assay
#6
J Simar, L Belkhir, B Tombal, E André
BACKGROUND: Adjuvant therapy with bacillus Calmette-Guerin (BCG), a live attenuated strain of Mycobacterium bovis, has become the treatment of choice for low-risk superficial bladder carcinoma following transurethral resection of the bladder. Complications following vesical BCG instillations are uncommon but, in some cases, severe side-effects can occur such as sepsis or mycotic aneurysm. Besides usual laboratory techniques used for the diagnosis of Mycobacterium tuberculosis complex (MTBC) infections (smear microscopy and cultures), commercial immunochromatographic assays detecting MBP64, a 24 kDa M...
January 26, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28124965/-bacteremia-caused-by-ciprofloxacin-resistant-salmonella-serotype-kentucky-a-case-report-and-the-review-of-literature
#7
Tuba Müderris, Fatma Yekta Ürkmez, Şeref Alp Küçüker, Muhammet Fethi Sağlam, Gül Ruhsar Yılmaz, Rahmet Güner, Revasiye Güleşen, Ziya Cibali Açıkgöz
Salmonella infections can be seen in four clinical types, namely gastroenteritis, bacteremia/sepsis, enteric fever and carriage. These infections can result in uncomplicated diarrhea in most cases, but can lead to invasive disease requiring antimicrobial therapy and can be life-threatening in elderly or immunocomprimised patients. Broad-spectrum cephalosporins and fluoroquinolones are crucial options in the treatment of the invasive infections. Ciprofloxacin resistance is rarely seen in non-typhoid Salmonella enterica isolates, and only in S...
October 2016: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/28115662/jarisch-herxheimer-reaction-among-patients-with-leptospirosis-incidence-and-risk-factors
#8
Gilles Guerrier, Patrick Lefèvre, Chantal Chouvin, Eric D'Ortenzio
A Jarisch-Herxheimer reaction (JHR) may be precipitated after initiation of chemotherapy in spirochetal diseases, including leptospirosis. However, a clear idea of the importance of JHR in this disease is lacking. The incidence of and risk factors for JHR were investigated retrospectively among 262 patients with confirmed leptospirosis who received amoxicillin treatment in New Caledonia and Futuna. The overall rate of JHR was 21% (12% in New Caledonia and 44% in Futuna). Two risk factors were independently associated with JHR occurrence: Leptospira interrogans serogroup Australis as the infecting strain (odds ratio [OR] = 2...
January 23, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28079790/ecthyma-gangrenosum-a-skin-manifestation-of-pseudomonas-aeruginosa-sepsis-in-a-previously-healthy-child-a-case-report
#9
Stephanie Biscaye, Diane Demonchy, Mickael Afanetti, Audrey Dupont, Herve Haas, Antoine Tran
RATIONALE: Ecthyma gangrenosum (Eg) is a necrotic lesion that is mostly seen in immunocompromised patients. It reflects a severe sepsis, possibly caused by Pseudomonas aeruginosa (Pa). PATIENT CONCERNS: A healthy 3-year-old girl admitted to the Pediatric Emergency Department presented a sepsis-associated purpura with neurological and respiratory distress. INTERVENTIONS: An empiric antibiotherapy (anti-meningococcal) was prescribed. DIAGNOSES: Forty-eight hours after admission, blood and wound cultures were positive for Pa...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28049383/a-lyme-borreliosis-diagnosis-probability-score-no-relation-with-antibiotic-treatment-response
#10
Violeta T Briciu, Mirela Flonta, Daniel Leucuţa, Dumitru Cârstina, Doina F Ţăţulescu, Mihaela Lupşe
OBJECTIVES: (1) To describe epidemiological and clinical data of patients that present with the suspicion of Lyme borreliosis (LB); (2) to evaluate a previous published score that classifies patients on the probability of having LB, following-up patients' clinical outcome after antibiotherapy. METHODS: Inclusion criteria: patients with clinical manifestations compatible with LB and Borrelia (B.) burgdorferi positive serology, hospitalized in a Romanian hospital between January 2011 and October 2012...
January 3, 2017: Infectious Diseases
https://www.readbyqxmd.com/read/28012530/acute-mastoiditis-in-children-middle-ear-cultures-may-help-in-reducing-use-of-broad-spectrum-antibiotics
#11
REVIEW
Catarina Garcia, Ana Bárbara Salgueiro, Catarina Luís, Paula Correia, Maria João Brito
BACKGROUND: Acute mastoiditis (AM) is a suppurative infection of the mastoid air cells, representing the most frequent complication of acute otitis media. AM remains an important entity in children due to its potential complications and sequelae. We aim to describe the cases of AM admitted at our department, identify risk factors potentially associated with complications and analyse the changes in clinical approach of AM over time. METHODS: Case review of clinical files of children admitted with acute mastoiditis from June 1996 to May 2013 at a Lisbon metropolitan area hospital...
January 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28010884/efficacy-of-lumbar-cistern-drainage-combined-with-intrathecal-antibiotherapy-for-the-treatment-of-ventriculo-subarachnoid-infections-following-surgery-for-hypertensive-intracerebral-hemorrhage
#12
Q-H Chen, D Lin, Q-G Yu, J Zhou
OBJECTIVE: The aim of this study was to investigate the efficacy of lumbar cistern drainage combined with intrathecal injection of antibiotics (LCD-ITI) in treating postoperative intracranial infections of hypertensive intracerebral hemorrhage (pHIH-ICI). METHODS: Sixty pHIH-ICI patients were randomly divided into the control group and the treatment group, with 30 patients in each group. Conventional treatment was performed in the control group, while LCD-ITI was performed in the treatment group...
December 20, 2016: Neuro-Chirurgie
https://www.readbyqxmd.com/read/27994927/an-unusual-neck-mass-ingested-chicken-bone
#13
Erhan Demirhan, Metin İber, Özlem Yağız, Tolga Kandoğan, İbrahim Çukurova
BACKGROUND: Foreign bodies in the upper aerodigestive tract are frequently seen in otolaryngological practice, but migration of an ingested foreign body to the neck is a very rare condition. CASE REPORT: We present a 66-year-old woman admitted to our outpatient department with a painful neck mass. She had a history of emergency department admission 4 months prior with odynophagia after eating chicken meal. A physical examination revealed a painful and hyperemic mass on the left neck...
November 2016: Balkan Medical Journal
https://www.readbyqxmd.com/read/27973989/prospective-randomized-controlled-study-on-the-effects-of-saccharomyces-boulardii-cncm-i-745-and-amoxicillin-clavulanate-or-the-combination-on-the-gut-microbiota-of-healthy-volunteers
#14
Toufic A Kabbani, Kumar Pallav, Scot E Dowd, Javier Villafuerte-Galvez, Rohini R Vanga, Natalia E Castillo, Joshua Hansen, Melinda Dennis, Daniel A Leffler, Ciarán P Kelly
Probiotics are believed to be beneficial in maintaining a healthy gut microbiota whereas antibiotics are known to induce dysbiosis. This study aimed to examine the effects of the probiotic Saccharomyces boulardii CNCM I-745 (SB), the antibiotic Amoxicillin-Clavulanate (AC) and the combination on the microbiota and symptoms of healthy humans. Healthy subjects were randomized to one of 4 study groups: SB for 14 days, AC for 7 days, SB plus AC, Control (no treatment). Participants gave stool samples and completed gastro-intestinal symptom questionnaires...
December 14, 2016: Gut Microbes
https://www.readbyqxmd.com/read/27924427/treatment-of-medication-related-osteonecrosis-of-the-jaws-mronj-with-ultrasonic-piezoelectric-bone-surgery-a-case-series-of-20-treated-sites
#15
Cornelio Blus, Giulio Giannelli, Serge Szmukler-Moncler, Germano Orru
PURPOSE: There is no consensus on how to successfully treat medication-related osteonecrosis of the jaws (MRONJ). We report here on the application of piezoelectric bone surgery to treat MRONJ in combination with antibiotherapy and on its possible benefit. MATERIEL AND METHODS: A cohort of 18 consecutive patients has been treated for MRONJ; they involved 20 sites, 15 in the mandible, and five in the maxilla. Surgical removal of the necrotic areas and debridement was performed with a powerful piezoelectric surgery device (max 90 W) in combination with antibiotherapy...
December 6, 2016: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27888830/-giant-retropharyngeal-abscess-in-pediatric-patient-case-report
#16
Ali Oğuz Demir, Ersoy Doğan, Mustafa Cenk Ecevit
A two-year-old girl patient, who presented to another center with three months of sore throat and one month of neck swelling with pain, was initiated antibiotherapy but no healing was achieved. Afterwards, the patient was directed to our clinic and an abscess was detected in magnetic resonance imaging extending in both lateral spaces of the neck. The patient was performed surgical drainage urgently. The wound was dressed with rifampicin and the patient was started parenteral antibiotherapy. A dramatic recovery was observed and no complication occurred in the patient...
September 2016: Kulak Burun Boğaz Ihtisas Dergisi: KBB, Journal of Ear, Nose, and Throat
https://www.readbyqxmd.com/read/27858396/evaluation-of-short-term-neurological-outcomes-in-children-diagnosed-with-brain-abscesses
#17
Manolya Acar, Murat Sutcu, Hacer Akturk, Aygozel Muradova, Selda Hancerli-Torun, Nuran Salman, Mine Caliskan, Nail Izgi, Ayper Somer
AIM: To evaluate the neurological outcomes of children diagnosed with brain abscesses in the early post-treatment period. MATERIAL AND METHODS: This study was a retrospective analysis of pediatric brain abscess patients between January 2000 and December 2015 during a 16 years period. Patients were divided into two groups according to their outcome at the end of the treatment. The patients with good outcome were the ones without any neurological sequelae (GOS score 5)...
October 17, 2016: Turkish Neurosurgery
https://www.readbyqxmd.com/read/27848011/clinical-value-of-antistreptolysin-o-levels-in-adult-patients-with-tonsillitis-report-i
#18
Vladimir Trushin, Moshe Englender
To assess the clinical value of antistreptolysin O (ASO) level in adult patients with acute tonsillitis of group A beta-hemolytic streptococcus (GABHS) etiology and its interaction with the Centor score and throat cultures data. ASO antibody titers and throat cultures were obtained from 260 adult patients with acute tonsillitis of GABHS etiology initially proven by the Centor score. The results were compared with the group of 100 adult patients with recurrent tonsillitis who underwent tonsillectomy and with the group of 100 healthy adults...
November 15, 2016: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/27845497/lysozyme-as-a-cotreatment-during-antibiotics-use-against-vaginal-infections-an-in-vitro-study-on-gardnerella-vaginalis-biofilm-models
#19
Olivier Thellin, Willy Zorzi, Danièle Zorzi, Philippe Delvenne, Ernst Heinen, Benaïssa ElMoualij, Pascale Quatresooz
Bacterial vaginoses are frequent in women, most of them involving Gardnerella vaginalis. In more than 50% of the cases, usual antibiotic treatments are not capable of eliminating completely the infection, leading to recurrent vaginosis. In addition to the appearance of antibiotic resistance, recurrence can be due to the development of a biofilm by G. vaginalis. In vitro experiments on G. vaginalis biofilms showed that the biofilm protected bacteria from the antibiotic clindamycin. Also, recombinant human lysozyme (rhLys) was able to both degrade biofilms and prevent their formation...
June 2016: International Microbiology: the Official Journal of the Spanish Society for Microbiology
https://www.readbyqxmd.com/read/27800109/thalamic-abscess-caused-by-a-rare-pathogen-streptococcus-constellatus
#20
Özgür Şenol, Hikmet Turan Süslü, Necati Tatarlı, Mehmet Tiryaki, Bülent Güçlü
Streptococcus constellatus is a microorganism that lives commensally in the oropharyngeal region, urogenital region, and intestinal tract. However, it can cause infection in patients with certain predisposing factors. Rarely, this microorganism can cause a brain abscess. Thalamic localization of brain abscesses is much rarer than abscesses in other locations of the brain. Brain abscess caused by streptococcus constellatus are very rarely been reported in the literature. We present a rare case of a left-sided thalamic abscess caused by streptococcus constellatus in a 25-year-old male patient who was injured by shrapnel pieces in the head and who was malnourished...
2016: Pan African Medical Journal
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