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https://www.readbyqxmd.com/read/28538778/estimated-rates-of-recurrence-cure-and-treatment-abandonment-in-patients-with-pulmonary-tuberculosis-treated-with-a-four-drug-fixed-dose-combination-regimen-at-a-tertiary-health-care-facility-in-the-city-of-rio-de-janeiro-brazil
#1
Vangie Dias da Silva, Fernanda Carvalho de Queiroz Mello, Sonia Catarina de Abreu Figueiredo
Objective: To estimate the rates of recurrence, cure, and treatment abandonment in patients with pulmonary tuberculosis treated with a four-drug fixed-dose combination (FDC) regimen, as well as to evaluate possible associated factors. Methods: This was a retrospective observational study involving 208 patients with a confirmed diagnosis of pulmonary tuberculosis enrolled in the Hospital Tuberculosis Control Program at the Institute for Thoracic Diseases, located in the city of Rio de Janeiro, Brazil...
March 2017: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
https://www.readbyqxmd.com/read/28533241/arr-cb-a-rifampin-resistance-determinant-found-active-or-cryptic-in-clostridium-bolteae
#2
Jean-Christophe Marvaud, Thierry Lambert
Clostridium bolteae, which belongs to the Clostridium clostridioforme complex is a member of the human gut microbiota. Recent analysis of seven genomes of C. bolteae revealed the presence of an arr-like gene. Among these strains only 90A7 was found to be resistant to rifampin in the absence of alteration in RpoB. Cloning of arr-cb from 90A7 in Escherichia coli combined with directed mutagenesis demonstrated that Arr-cb is functional but that a Q127→R variant present in 90A9 and 90B3 was inactive. qRT-PCR analysis indicated that arr-cb was silent in the four remaining strains due to a defective transcription...
May 22, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28527253/-prevalence-of-mycobacterium-tuberculosis-resistance-to-quinolones-and-injectables-in-colombia-2012-2013
#3
Claudia Llerena, Angie Zabaleta, Angélica Valbuena, Martha Murcia
INTRODUCTION: Tuberculosis is a health problem worldwide. The World Health Organization estimated 9.6 million new cases and 480,000 multirresistant cases for 2014. The assessment of resistance to quinolones and injectables was implemented only a few years ago, so its prevalence is not known. OBJECTIVE: To determine the prevalence of resistance to amikacin, capreomycin and ofloxacin in cases of tuberculosis resistant to isoniazid and/or rifampin during 2012-2013...
January 24, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28513421/clinical-and-bacteriological-characteristics-associated-with-clustering-of-multidrug-resistant-tuberculosis
#4
J-Y J-Y Feng, L G Jarlsberg, K Salcedo, J Rose, M Janes, S-Y G Lin, D H Osmond, K C Jost, M K Soehnlen, J Flood, E A Graviss, E Desmond, P K Moonan, P Nahid, P C Hopewell, M Kato-Maeda
<h2>SETTING:</h2><p>The impact of the genetic characteristics of Mycobacterium tuberculosis on the clustering of multidrug-resistant tuberculosis (MDR-TB) has not been analyzed together with clinical and demographic characteristics.</p><h2>OBJECTIVE:</h2><p>To determine factors associated with genotypic clustering of MDR-TB in a community-basedstudy.</p><h2>DESIGN:</h2><p>We measured the proportion of clustered cases among MDR-TB patients and determined the impact of clinical and demographic characteristics and that of three M...
May 16, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28511895/diagnostic-performance-of-anyplex-ii-mtb-mdr-xdr-for-detection-of-resistance-to-first-and-second-line-drugs-in-mycobacterium-tuberculosis
#5
F Pérez-García, M J Ruiz-Serrano, P López Roa, Fermín Acosta, Laura Pérez-Lago, D García-De-Viedma, E Bouza
PURPOSE: Genotypic methods have considerably improved the diagnosis of multidrug-resistant (MDR) tuberculosis. One of these tests is Anyplex II MTB/MDR/XDR (Anyplex). Our aim was to evaluate the diagnostic performance of this multiplex PCR. METHODS: We conducted our study on 47 MDR tuberculosis and 14 pan-susceptible strains. We evaluated the ability of Anyplex to detect resistance mutations in rpoB (rifampin [RIF]), katG and inhA (isoniazid [INH]), gyrA (fluoroquinolones [FLQ]), and rrs and eis (aminoglycosides [AMG])...
May 13, 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/28511780/anti-mycobacterium-avium-complex-activity-of-clarithromycin-rifampin-rifabutin-and-ethambutol-in-combination-with-adenosine-5-triphosphate
#6
Yutaka Tatano, Seiko Yamabe, Chiaki Sano, Haruaki Tomioka
We previously reported that adenosine 5'-triphosphate (ATP) inhibited the growth of various bacteria, including mycobacteria, Staphylococcus, and Pseudomonas, without damaging bacterial surface structures. Notably, ATP's antibacterial activity was found to be attributable to its iron-chelating ability. ATP exhibited combined effects with some antimicrobials against Mycobacterium intracellulare and methicillin-resistant S. aureus, suggesting its usefulness as an adjunctive drug in the chemotherapy against certain intractable infections...
May 2, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28507065/mutants-in-the-%C3%AE-subunit-of-the-rna-polymerase-impairing-the-surface-associated-motility-and-virulence-of-acinetobacter-baumannii
#7
María Pérez-Varela, Jordi Corral, Juan Andrés Vallejo, Soraya Rumbo-Feal, Germán Bou, Jesús Aranda, Jordi Barbé
Acinetobacter baumannii is a major cause of antibiotic-resistant nosocomial infections worldwide. In this study, several rifampin-resistant spontaneous mutants obtained from the A. baumannii ATCC 17978 strain were isolated that differed in their point mutations in the rpoB gene, encoding the β-subunit of the RNA polymerase. All mutants harboring amino acid substitutions in positions 522 or 540 of the RpoB protein were impaired in surface-associated motility and had attenuated virulence in the fertility model of Caenorhabditis elegans The transcriptional profile of these mutants included six down-regulated genes encoding proteins homologous to transporters and metabolic enzymes widespread among A...
May 15, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28505276/african-tick-bite-fever-treated-successfully-with-rifampin-in-a-patient-with-doxycycline-intolerance
#8
Andrew Strand, Christopher D Paddock, Alex R Rinehart, Marah E Condit, Jessica R Marus, Shezeen Gilliani, Ida H Chung, Vance G Fowler
African tick bite fever is the most commonly encountered travel-associated rickettsiosis, occurring in as many as 5% of travelers returning from rural sub-equatorial Africa. This case report illustrates that rifampin represents an effective alternative to doxycycline for treatment of ATBF in some selective situations.
May 13, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28503781/assessment-of-effect-of-cyp3a-inhibition-cyp-induction-oatp1b-inhibition-and-high-fat-meal-on-pharmacokinetics-of-the-jak1-inhibitor-upadacitinib
#9
Mohamed-Eslam F Mohamed, Steven Jungerwirth, Armen Asatryan, Ping Jiang, Ahmed A Othman
AIMS: Upadacitinib (ABT-494) is a selective Janus kinase 1 inhibitor developed for treatment of auto-immune inflammatory disorders. This work evaluated effects of high-fat meal, cytochrome P450 (CYP) 3A inhibition, CYP induction, and organic anion transporting polypeptide (OATP) 1B inhibition on upadacitinib pharmacokinetics. METHODS: Two Phase 1 evaluations were conducted, each in 12 healthy subjects. In Study 1, using a randomized, 2-sequence cross-over design, a 3 mg dose of upadacitinib (immediate-release capsules) was administered alone under fasting conditions, after high-fat meal, or on Day 4 of a 6-day regimen of 400 mg once-daily ketoconazole...
May 14, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28501036/tuberculosis-in-liver-transplant-recipients-a-report-of-eight-cases-during-a-five-year-period
#10
Diana Póvoas, João Machado, Rui Perdigoto, Ana Morbey, Júlio Veloso, Helena Glória, Élia Mateus, Américo Martins, Fernando Maltez, Eduardo Barroso
INTRODUCTION: Tuberculosis incidence in Portugal ranged from 20 to 22 cases per 100 000 inhabitants between 2010 and 2014. Tuberculosis incidence in liver transplant recipients is not precisely known, but it is estimated to be higher than among the general population. Tuberculosis in liver transplant recipients is particularly challenging because of the atypical clinical presentation and side effects of the antibacillary drugs and their potential interactions with immunosuppressive therapies...
January 31, 2017: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28489844/penetrating-gastric-ulcer-as-a-manifestation-of-multisystemic-tuberculosis
#11
Jorge Espinoza-Ríos, Eduar Bravo Paredes, José Pinto Valdivia, Julissa Guevara, Jorge Huerta-Mercado, Martín Tagle Arróspide, Alejandro Bussalleu Rivera
We present the case of a 30-year old female with a history of abdominal pain, fever, poor oral tolerance and weight loss for 6 months. An abdominal CT scan showed marked gastric dilatation due to extrinsic compression from lymphadenopathies around the second portion of the duodenum. The upper endoscopy revealed the presence of a penetrating gastric ulcer in the greater curvature. Biopsies of the lesions showed hystiocytes with granulomatous features and Acid Fast Bacilli (AFB) positive, and the cultures grew Mycobacterium tuberculosis sensitive to Isonazid and Rifampin...
January 2017: Revista de Gastroenterología del Perú: órgano Oficial de la Sociedad de Gastroenterología del Perú
https://www.readbyqxmd.com/read/28483600/phenotypic-and-genotypic-study-of-biofilm-formation-in-enterococci-isolated-from-urinary-tract-infections
#12
F Fallah, M Yousefi, M R Pourmand, A Hashemi, A Nazari Alam, D Afshar
BACKGROUND: Urinary tract infection (UTI) is one of the most frequent types of nosocomial and community acquired infections in humans. Management of multidrug-resistant Enterococci UTI due to the limited therapeutic options is a great challenge for physicians and clinical microbiologists. The role of bacterial biofilms in recurrent urinary tract infections and antimicrobial resistance has great importance for public health. The aim of this study was to investigate the antibiotic susceptibility pattern as well as the phenotypic and genotypic biofilm formation ability of Enterococci isolates from patients with UTI...
May 5, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28480653/the-rate-of-drug-resistant-tuberculosis-in-korean-children-and-adolescents-since-2007
#13
Hyun Jung Kim, Hyung Ho Yoon, Byung Wook Eun, Youngmin Ahn, Sungweon Ryoo, Hee Jin Kim
The incidence of drug-resistant tuberculosis (DR-TB) in pediatric populations is a critical indicator of national TB management and treatment strategies. Limited data exist regarding the rate of pediatric DR-TB. In this study, we aimed to analyze the status of DR-TB in Korean children from 2007 to 2013. We analyzed specimens submitted to the Korean Institute of Tuberculosis using Mycobacterium tuberculosis culture and drug susceptibility tests (DSTs) from January 2007 through December 2013. Specimens from patients ≤ 19 years of age were included...
June 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28473914/isolated-splenic-abscess-in-brucellosis
#14
Sreenivasa Rao Sudulagunta, Monica Kumbhat, Mahesh Babu Sodalagunta, Aravinda Settikere Nataraju, Shiva Kumar Bangalore Raja
Brucellosis is a zoonotic infectious disease, which can attack any organ of the body but mainly involves lymphoreticular system. Our case report describes isolated splenic abscess diagnosed in a 50-year-old individual who is a milk vendor by occupation and has the habit of consuming raw milk. He was admitted with pain abdomen, high-grade fever with chills, generalized malaise, night sweats and weight loss. Ultrasound and computerized tomography of the abdomen showed splenomegaly and hypodense, nonenhancing lesion measuring 3...
February 2017: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/28472124/performance-of-taqman-array-card-to-detect-tb-drug-resistance-on-direct-specimens
#15
Sayera Banu, Suporn Pholwat, Suporn Foongladda, Rattapha Chinli, Duangjai Boonlert, Sara Sabrina Ferdous, S M Mazidur Rahman, Arfatur Rahman, Shahriar Ahmed, Eric R Houpt
Culture based phenotypic drug susceptibility testing (DST) for Mycobacterium tuberculosis (TB) is time consuming therefore rapid genotypic methods are increasingly being utilized. We previously developed and evaluated on TB isolates a rapid genotypic TaqMan array card (TAC) that detects mutations in several resistance-associated genes using dozens of primer pairs, probes, and high resolution melt analysis, with >96% accuracy versus Sanger sequencing. In this study we examined the performance of TAC on sputum, comparing results between 71 paired sputum and TB isolates of which 62 were MDR-TB...
2017: PloS One
https://www.readbyqxmd.com/read/28471867/daptomycin-use-in-children-experience-with-various-types-of-infection-and-age-groups
#16
George A Syrogiannopoulos, Aspasia N Michoula, Efthimia Petinaki, Ioanna N Grivea
BACKGROUND: In Greece, there are high rates of methicillin (40-60%) and clindamycin (15-25%) resistance among community-acquired Staphylococcus aureus isolates. Therefore, we sought to identify other antimicrobial treatment options such as daptomycin. METHODS: We studied retrospectively all pediatric infections treated with daptomycin at the University General Hospital of Larissa, Greece from January 1, 2007 to June 16, 2016. RESULTS: Of a total of 128 patients (median age 2...
May 3, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28464821/clindamycin-rifampin-combination-therapy-for-staphylococcal-periprosthetic-joint-infections-a-retrospective-observational-study
#17
Borg Leijtens, Joris B W Elbers, Patrick D Sturm, Bart Jan Kullberg, Berend W Schreurs
BACKGROUND: Staphylococcal species account for more than 50% of periprosthetic joint infections (PJI) and antimicrobial therapy with rifampin-based combination regimens has been shown effective. The present study evaluates the safety and efficacy of clindamycin in combination with rifampin for the management of staphylococcal PJI. METHODS: In this retrospective cohort study, patients were included who received clindamycin-rifampin combination therapy to treat a periprosthetic hip or knee infection by Staphylococcus aureus or coagulase-negative staphylococci...
May 2, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28463082/quantification-of-transfer-of-salmonella-from-citrus-fruits-to-peel-edible-portion-and-gloved-hands-during-hand-peeling
#18
Jiin Jung, Loretta M Friedrich, Michelle D Danyluk, Donald W Schaffner
Although studies have quantified bacterial transfer between hands and various materials, cross-contamination between the surface of fresh citrus fruit and the edible portions during hand peeling has not been reported. This study quantifies transfer of Salmonella to the edible portion of citrus fruit from a contaminated peel during hand peeling. Citrus fruits used for this study were Citrus sinensis (sweet orange) cultivars 'Valencia' and 'Navel', Citrus unshiu (Satsuma mandarins), Citrus reticulata × Citrus paradisi ('Minneola' tangelo or 'Honeybell'), and C...
May 2, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28462170/renal-tuberculosis-in-a-9-months-old-case-report-and-review-of-the-literature
#19
Ariadna Fabià Mayans, Oriol Angerri Feu, Helena Ascaso Til, Yolanda Arce Terroba, Rebeca Blanco Fernández, Anna Bujons Tur, Jorge Caffaratti Sfulcini
A nine months old girl with prenatal diagnosis of bilateral hydronephrosis underwent serious studies and in view of the presumed diagnosis of right functional annulment, a right laparoscopic nephroureterectomy was performed. The anatomopatological result was suggestive of tuberculosis without previous contact with the disease. Postoperatively, the child received antituberculosis therapy (ATT) for a full 8 months (isoniazid, rifampin, pyrazinamide and ethambutol for 2 months and isoniazid and rifampin for 6 months) and the follow-up tests revealed improvement of ureterohydronephrosis in left kidney...
July 2017: Urology Case Reports
https://www.readbyqxmd.com/read/28455475/high-failure-rates-in-treatment-of-streptococcal-periprosthetic-joint-infection-results-from-a-seven-year-retrospective-cohort-study
#20
D Akgün, A Trampuz, C Perka, N Renz
AIMS: To investigate the outcomes of treatment of streptococcal periprosthetic joint infection (PJI) involving total knee and hip arthroplasties. PATIENTS AND METHODS: Streptococcal PJI episodes which occurred between January 2009 and December 2015 were identified from clinical databases. Presentation and clinical outcomes for 30 streptococcal PJIs in 30 patients (12 hip and 18 knee arthroplasties) following treatment were evaluated from the medical notes and at review...
May 2017: Bone & Joint Journal
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