keyword
MENU ▼
Read by QxMD icon Read
search

Macrolide

keyword
https://www.readbyqxmd.com/read/28742106/epidemiology-of-enteroaggregative-escherichia-coli-infections-and-associated-outcomes-in-the-mal-ed-birth-cohort
#1
Elizabeth T Rogawski, Richard L Guerrant, Alexandre Havt, Ila F N Lima, Pedro H Q S Medeiros, Jessica C Seidman, Benjamin J J McCormick, Sudhir Babji, Dinesh Hariraju, Ladaporn Bodhidatta, Jasmin Shrestha, Japhat Anania, Athanasia Maro, Amidou Samie, Pablo Peñataro Yori, Shahida Qureshi, Mustafa Mahfuz, Pascal O Bessong, Margaret N Kosek, Tahmeed Ahmed, Zulfiqar A Bhutta, Dennis R Lang, Michael Gottlieb, Eric R Houpt, Aldo A M Lima
BACKGROUND: Enteroaggregative E. coli (EAEC) have been associated with mildly inflammatory diarrhea in outbreaks and in travelers and have been increasingly recognized as enteric pathogens in young children with and without overt diarrhea. We examined the risk factors for EAEC infections and their associations with environmental enteropathy biomarkers and growth outcomes over the first two years of life in eight low-resource settings of the MAL-ED study. METHODS: EAEC infections were detected by PCR gene probes for aatA and aaiC virulence traits in 27,094 non-diarrheal surveillance stools and 7,692 diarrheal stools from 2,092 children in the MAL-ED birth cohort...
July 24, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28741975/antibiotic-switch-during-treatment-with-antibiotics-against-respiratory-tract-infections-in-ambulatory-care-in-norway
#2
Mari Blandhol, Thekla Tysland, Hege Salvesen Blix, Sigurd Høye
OBJECTIVES: To compare antibiotic treatment failure evaluated as switch from one type of antibiotics to another in ambulatory care. METHODS: Data on all dispensed doxycycline, amoxicillin, phenoxymethylpenicillin and macrolides in Norway June 2013 - May 2015, was retrieved from the Norwegian Prescription Database. We computed switch rates for the selected antibiotics on day 1-28 after initial dispensing, and the corresponding odds-ratios, adjusted for patients´ age and gender, and prescribers´ specialty...
July 25, 2017: Infectious Diseases
https://www.readbyqxmd.com/read/28739805/functional-insights-into-the-mode-of-dna-and-ligand-binding-of-the-tetr-family-regulator-tylp-from-streptomyces-fradiae
#3
Shamayeeta Ray, Anwesha Maitra, Anwesha Biswas, Santosh Panjikar, Jagannath Mondal, Ruchi Anand
Tetracycline Repressors (TetRs) modulate multi-drug efflux pathways in several pathogenic bacteria. In Streptomyces, they additionally regulate secondary metabolic pathways like antibiotic production. For instance, in the antibiotic producer Streptomyces fradiae, a layered network of TetRs regulate the levels of commercially important antibiotic tylosin, with TylP occupying the top of this cascading network. TetRs exist in two functional states; the DNA-bound and the ligand-bound form, which are allosterically regulated...
July 24, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28739795/clinical-characteristics-and-treatment-outcomes-of-patients-with-acquired-macrolide-resistant-mycobacterium-abscessus-lung-disease
#4
Hayoung Choi, Su-Young Kim, Dae Hun Kim, Hee Jae Huh, Chang-Seok Ki, Nam Yong Lee, Seung-Heon Lee, Soyoun Shin, Sung Jae Shin, Charles L Daley, Won-Jung Koh
Macrolide antibiotics are mainstays in the treatment of lung disease due to the Mycobacterium abscessus complex. Although previous studies have reported development of acquired macrolide resistance in this species, limited data are available on the outcomes of lung disease due to macrolide-resistant M. abscessus subspecies abscessus (hereafter M. abscessus). This study evaluated the clinical features, treatment outcomes, and molecular characteristics of macrolide-resistant isolates of M. abscessus We performed a retrospective review of medical records and genetic analysis of clinical isolates from 13 patients who had acquired macrolide-resistant M...
July 24, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28739571/splice-variants-of-ph-sensitive-chloride-channel-identify-a-key-determinant-of-ivermectin-sensitivity-in-the-larvae-of-the-silkworm-bombyx-mori
#5
Daiki Okuhara, Shogo Furutani, Katsuhiko Ito, Makoto Ihara Ihara, Kazuhiko Matsuda
The pH-sensitive chloride channels (pHCls) are broadly expressed in insects, but little is known about their physiological role, diversity and sensitivity to insecticides acting on relevant chloride channels. Here we have sequenced 50 transcripts of the pHCl-1 gene from the brain, third thoracic ganglion (T3G) and midgut of larvae of silkworm Bombyx mori. It was found that >50 variants were expressed with distinct splicing in the T3G compared to the brain and midgut. Of the variants detected, variant 9, which was expressed most abundantly in the larvae, was reconstituted in Xenopus laevis oocytes to characterise its pH- and ivermectin sensitivity...
July 24, 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/28738959/-study-on-the-effect-of-immunosuppressive-agent-fk506-on-growth-and-migration-of-lung-cancer-cell
#6
Yongwen Li, Hongbing Zhang, Ying Li, Chenlong Zhao, Weiting Li, Hongyu Liu, Jianping Wen, Jun Chen
BACKGROUND: FK506, also named tacrolimus, a new macrolide immunosuppressive agent, has been shown to possess anti-proliferation activities in some cancer cells. The aim of this study was to investigate the effect of FK506 on the cell proliferation and migration of lung cancer cell lines and its mechanism. METHODS: A549 and H1299 cell lines were cultured in vitro. The effect of FK506 on cell viability and DNA synthesis ability of A549 and H1299 were measured by CCK-8 assay and EDU-labeling assay, respectively...
July 20, 2017: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/28735056/distribution-of-macrolide-resistance-mechanisms-in-bulgarian-clinical-isolates-of-streptococcus-pyogenes-during-the-years-of-2013-2016
#7
Adile A Muhtarova, Raina T Gergova, Ivan G Mitov
Streptococcus pyogenes, or group A streptococcus (GAS), is the main etiological agent of bacterial tonsillopharyngitis and a common cause of a wide variety of other mild to severe infections. OBJECTIVES: of the present study was to determine and evaluate the distribution of genetic mechanisms associated with certain phenotypes of macrolide resistance in Bulgarian GAS isolated during the years of 2013-2016. METHODS: All GAS strains were screened for the macrolide resistance genes erm(A), erm(B) and mef(A), using multiplex polymerase chain reaction (PCR)...
July 19, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28732791/detection-of-a-mecc-positive-staphylococcus-saprophyticus-from-bovine-mastitis-in-argentina
#8
Mariela E Srednik, Marie Archambault, Mario Jacques, Elida R Gentilini
INTRODUCTION: Bovine mastitis causes important economic losses in the dairy industry. Coagulase-negative staphylococci (CNS) are a group of bacteria commonly isolated from bovine mastitis and can display resistance to a wide range of antimicrobial agents. OBJECTIVES: The objective of this study was to determine staphylococcal resistance towards β-lactam, macrolide and lincosamide antimicrobials in quarters previously treated with third-generation cephalosporin and after lincosamide intramammary therapy...
July 18, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28730460/impact-of-safety-warnings-on-domperidone-prescribing-in-ireland
#9
M Teeling, M J MacAvin, K Bennett
AIM: This study aimed to investigate the impact of the 2014 safety warnings on use of domperidone, on subsequent prescribing patterns in Ireland. METHODS: The Irish HSE-PCRS pharmacy claims database was used to identify the study cohort (aged 18+), prescribed domperidone from Jan 2014 to Oct 2015. Dosage was available for each claim; concomitant prescription with the following drug classes was identified and calculated as a percentage of the total number of claims: anti-arrhythmics, macrolide antimicrobials and the selective serotonin receptor inhibitors (SSRIs) citalopram and escitalopram...
July 20, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/28730159/antibiotic-prescribing-for-adults-hospitalized-in-the-etiology-of-pneumonia-in-the-community-study
#10
Sara Tomczyk, Seema Jain, Anna M Bramley, Wesley H Self, Evan J Anderson, Chris Trabue, D Mark Courtney, Carlos G Grijalva, Grant W Waterer, Kathryn M Edwards, Richard G Wunderink, Lauri A Hicks
BACKGROUND: Community-acquired pneumonia (CAP) 2007 guidelines from the Infectious Diseases Society of America (IDSA)/American Thoracic Society (ATS) recommend a respiratory fluoroquinolone or beta-lactam plus macrolide as first-line antibiotics for adults hospitalized with CAP. Few studies have assessed guideline-concordant antibiotic use for patients hospitalized with CAP after the 2007 IDSA/ATS guidelines. We examine antibiotics prescribed and associated factors in adults hospitalized with CAP...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28729204/characterization-of-clinical-isolates-oxacillin-susceptible-meca-positive-staphylococcus-aureus-os-mrsa-in-china-from-2009-2014
#11
Yunjia Song, Lanqing Cui, Yuan Lv, Yun Li, Feng Xue
OBJECTIVE: The study aimed to investigate the prevalence and molecular characteristics of clinical oxacillin-susceptible mecA-positive Staphylococcus aureus (OS-MRSA) isolates in China from July 2009 to June 2014. METHODS: A total of 2,068 non-duplicated Staphylococcus aureus isolates were collected from 21 hospitals and the susceptibility test were performed by agar dilution method. All the OS-MRSA strains were screened for the presence of the mecA, mecC and nuc gene as well as Panton-Valentine leucocidin gene(PVL)...
July 17, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28728317/mycoplasma-pneumoniae-associated-hepatitis-without-lung-involvement
#12
Han Taek Jeong, Jae Young Oh, Jung Eun Song, Byung Seok Kim, Chang Hyeong Lee
Mycoplasma pneumoniae (M. pneumoniae) is a major cause of community acquired respiratory infections. And it also causes a number of extrapulmonary manifestations including cardiovascular, dermatological, musculoskeletal, and hematological systems. But, acute hepatitis without lung involvement is rare in adults. Here, we report a case of 32-year-old man who presented with fever, chilling, myalgia, and headache. Biochemical analysis showed severely impaired liver function and leukopenia. Laboratory tests and liver biopsy demonstrated a hepatocellular pattern of M...
July 25, 2017: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/28724114/oral-macrolides-for-the-dermatologic-manifestations-of-blau-syndrome
#13
Shalini Thareja, Kaitlyn Kollmann, Kaveh Ardalan, Marisa S Klein-Gitelman, Amy S Paller, Lisa M Arkin
No abstract text is available yet for this article.
July 19, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28722171/use-of-antibiotics-during-pregnancy-and-the-risk-of-major-congenital-malformations-a-population-based-cohort-study
#14
Flory T Muanda, Odile Sheehy, Anick Bérard
INTRODUCTION: Few studies have investigated the link between individual antibiotics and major congenital malformations (MCMs) including specific malformations owing to small sample size. We aimed to quantify the association between exposure to gestational antibiotic and the risk of MCMs. METHODS: Using the Quebec pregnancy cohort (1998 -2008), we included a total of 139,938 liveborn singleton alive whose mothers were covered by the «Régie de l'assurance maladie du Québec" drug plan for at least 12 months before and during pregnancy...
July 19, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28717220/imaging-mass-spectrometry-and-ms-ms-molecular-networking-reveals-chemical-interactions-among-cuticular-bacteria-and-pathogenic-fungi-associated-with-fungus-growing-ants
#15
Cristopher A Boya P, Hermógenes Fernández-Marín, Luis C Mejía, Carmenza Spadafora, Pieter C Dorrestein, Marcelino Gutiérrez
The fungus-growing ant-microbe symbiosis is an ideal system to study chemistry-based microbial interactions due to the wealth of microbial interactions described, and the lack of information on the molecules involved therein. In this study, we employed a combination of MALDI imaging mass spectrometry (MALDI-IMS) and MS/MS molecular networking to study chemistry-based microbial interactions in this system. MALDI IMS was used to visualize the distribution of antimicrobials at the inhibition zone between bacteria associated to the ant Acromyrmex echinatior and the fungal pathogen Escovopsis sp...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28717051/detection-of-markers-predictive-of-macrolide-and-fluoroquinolone-resistance-in-mycoplasma-genitalium-from-patients-attending-sexual-health-services-in-england
#16
Rachel Pitt, Helen Fifer, Neil Woodford, Sarah Alexander
OBJECTIVES: Resistance to both macrolides and fluoroquinolones has been reported in Mycoplasma genitalium; however, due to limited diagnostics, studies are often small and confined to specific geographical areas. This study sought to determine the rate of predicted resistance in M. genitalium-positive specimens referred for diagnostic testing. METHODS: Seventy-four M. genitalium-positive specimens, referred to the national reference laboratory (2010-2013) from 19 centres across England, were blinded and anonymised...
July 17, 2017: Sexually Transmitted Infections
https://www.readbyqxmd.com/read/28717050/which-azithromycin-regimen-should-be-used-for-treating-mycoplasma-genitalium-a-meta-analysis
#17
REVIEW
Patrick Horner, Suzanne M Ingle, Frederick Garrett, Karla Blee, Fabian Kong, Peter Muir, Harald Moi
BACKGROUND: There is increasing evidence that azithromycin 1 g is driving the emergence of macrolide resistance in Mycoplasma genitalium worldwide. We undertook a meta-analysis of M. genitalium treatment studies using azithromycin 1 g single dose and azithromycin 500 mg on day 1 then 250 mg daily for 4 days (5-day regimen) to determine rates of treatment failure and resistance in both regimens. METHODS: The online databases PubMed and Medline were searched using terms "Mycoplasma genitalium", "macrolide" or "azithromycin" and "resistance" up to April 2016...
July 17, 2017: Sexually Transmitted Infections
https://www.readbyqxmd.com/read/28716197/quantitative-and-qualitative-analysis-of-antimicrobial-usage-in-white-veal-calves-in-france
#18
N Jarrige, G Cazeau, E Morignat, M Chanteperdrix, E Gay
The development of antimicrobial resistance has made it necessary to measure antimicrobial usage in animal production sectors. France is a major European producer of white veal calves, but few data were previously available for that sector, even though these young animals are particularly susceptible to infection and considered as a reservoir of antimicrobial resistance. A cross-sectional study was conducted on 186 batches of French calves to estimate the exposure of white veal calves to antimicrobials and identify the potential risk factors related to antimicrobial usage...
September 1, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28710882/mid-trimester-preterm-premature-rupture-of-membranes-pprom-etiology-diagnosis-classification-international-recommendations-of-treatment-options-and-outcome
#19
REVIEW
Michael Tchirikov, Natalia Schlabritz-Loutsevitch, James Maher, Jörg Buchmann, Yuri Naberezhnev, Andreas S Winarno, Gregor Seliger
Mid-trimester preterm premature rupture of membranes (PPROM), defined as rupture of fetal membranes prior to 28 weeks of gestation, complicates approximately 0.4%-0.7% of all pregnancies. This condition is associated with a very high neonatal mortality rate as well as an increased risk of long- and short-term severe neonatal morbidity. The causes of the mid-trimester PPROM are multifactorial. Altered membrane morphology including marked swelling and disruption of the collagen network which is seen with PPROM can be triggered by bacterial products or/and pro-inflammatory cytokines...
July 15, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28710734/multi-class-determination-of-pharmaceuticals-in-wastewaters-by-solid-phase-extraction-and-liquid-chromatography-tandem-mass-spectrometry-with-matrix-effect-study
#20
Mirta Čizmić, Sandra Babić, Marija Kaštelan-Macan
In this work, a multi-class analytical method for determination of 22 frequently used pharmaceuticals was developed and validated. Analytes were from different classes for example macrolides, fluoroquinolones, tetracyclines, sulfonamides, anthelmintics, anesthetics, and others. Method was intended for analysis of aqueous samples so the sample preparation was done using solid-phase extraction (SPE). Different sorbents (C8, C18, polymeric, and ion exchange sorbents) combining different eluents (methanol, ethanol, acetonitrile, acetone, ethyl acetate) were investigated during development of sample preparation step...
July 15, 2017: Environmental Science and Pollution Research International
keyword
keyword
12868
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"