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Mary Leonard

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https://www.readbyqxmd.com/read/28813542/the-african-cholera-surveillance-network-africhol-consortium-meeting-10-11-june-2015-lom%C3%A3-togo
#1
Aline Munier, Berthe-Marie Njanpop-Lafourcade, Delphine Sauvageot, Raymond B Mhlanga, Léonard Heyerdahl, Johara Nadri, Richard Wood, Issaka Ouedraogo, Alexandre Blake, Laurent Akilimali Mukelenge, Jean-Claude B Anné, Abiba Banla Kere, Lucienne Dempouo, Sakoba Keita, José P M Langa, Issa Makumbi, Elibariki R Mwakapeje, Ian J Njeru, Olubunmi E Ojo, Isaac Phiri, Lorenzo Pezzoli, Bradford D Gessner, Martin Mengel
The fifth annual meeting of the African cholera surveillance network (Africhol) took place on 10-11 June 2015 in Lomé, Togo. Together with international partners, representatives from the 11 member countries -Cameroon, Côte d'Ivoire, Democratic Republic of Congo, Guinea, Kenya, Mozambique, Nigeria, Tanzania, Togo, Uganda, Zimbabwe- and an invited country (Malawi) shared their experience. The meeting featured three sessions: i) cholera surveillance, prevention and control in participating countries, ii) cholera surveillance methodology, such as cholera mapping, cost-effectiveness studies and the issue of overlapping epidemics from different diseases, iii) cholera laboratory diagnostics tools and capacity building...
2017: BMC Proceedings
https://www.readbyqxmd.com/read/28802058/postantibiotic-effect-and-postantibiotic-sub-mic-effect-of-ltx-109-and-mupirocin-on-staphylococcus-aureus-blood-isolates
#2
Louis D Saravolatz, Joan Pawlak, Hayley Martin, Stephanie Saravolatz, Leonard Johnson, Hedda Wold, Mette Husbyn, Wenche Marie Olsen
The development of new synthetic antimicrobial peptides like LTX-109 provides a new class of drugs for the treatment of Staphylococcus aureus infections. We evaluated LTX-109 and mupirocin for pharmacodynamic parameters against 10 methicillin-resistant S. aureus isolates. The post antibiotic effect (PAE) is defined as the length of time that bacterial growth is suppressed following a brief exposure to an antibiotic. We also determined the sub-MIC effect (SME) which measures the direct effect of sub-inhibitory levels on strains that have not previously been exposed to antibiotics...
August 12, 2017: Letters in Applied Microbiology
https://www.readbyqxmd.com/read/28764717/a-longitudinal-cohort-study-of-malaria-exposure-and-changing-serostatus-in-a-malaria-endemic-area-of-rural-tanzania
#3
Ryan A Simmons, Leonard Mboera, Marie Lynn Miranda, Alison Morris, Gillian Stresman, Elizabeth L Turner, Randall Kramer, Chris Drakeley, Wendy P O'Meara
BACKGROUND: Measurements of anti-malarial antibodies are increasingly used as a proxy of transmission intensity. Most serological surveys are based on the use of cross-sectional data that, when age-stratified, approximates historical patterns of transmission within a population. Comparatively few studies leverage longitudinal data to explicitly relate individual infection events with subsequent antibody responses. METHODS: The occurrence of seroconversion and seroreversion events for two Plasmodium falciparum asexual stage antigens (MSP-1 and AMA-1) was examined using three annual measurements of 691 individuals from a cohort of individuals in a malaria-endemic area of rural east-central Tanzania...
August 2, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28762872/the-role-of-the-smart-and-whim-in-behavioural-assessment-of-disorders-of-consciousness-clinical-utility-and-scope-for-a-symbiotic-relationship
#4
Ann-Marie Morrissey, Helen Gill-Thwaites, Barbara Wilson, Rachel Leonard, Lindsay McLellan, Amy Pundole, Agnes Shiel
As the prevalence and incidence of disorders of consciousness (DoC) increase, researchers and clinicians are tasked with developing best practice assessment techniques. Neurobehavioural assessment remains the most clinically available method of measuring consciousness. Neuroimaging and other physiological measurements are demonstrating promise in supporting this assessment but many of these techniques require further research and are not widely available in sub-acute and long-term care settings. No study to date has explored in-depth complementary use of multiple neurobehavioural assessments in aiding beside assessment of consciousness...
August 1, 2017: Neuropsychological Rehabilitation
https://www.readbyqxmd.com/read/28752605/peaks-of-in-situ-n2-o-emissions-are-influenced-by-n2-o-producing-and-reducing-microbial-communities-across-arable-soils
#5
L A Domeignoz-Horta, L Philippot, C Peyrard, D Bru, M C Breuil, F Bizouard, E Justes, B Mary, J Léonard, A Spor
Agriculture is the main source of terrestrial N2 O emissions, a potent greenhouse gas and the main cause of ozone depletion. The reduction of N2 O into N2 by microorganisms carrying the nitrous oxide reductase gene (nosZ) is the only known biological process eliminating this greenhouse gas. Recent studies showed that a previously unknown clade of N2 O-reducers (nosZII) was related to the potential capacity of the soil to act as a N2 O sink. However little is known about how this group responds to different agricultural practices...
July 28, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28733303/oral-glucocorticoid-use-and-osteonecrosis-in-children-and-adults-with-chronic-inflammatory-diseases-a-population-based-cohort-study
#6
Daniel B Horton, Kevin Haynes, Michelle R Denburg, Mihir M Thacker, Carlos D Rose, Mary E Putt, Mary B Leonard, Brian L Strom
OBJECTIVES: We studied oral glucocorticoids and osteonecrosis, a rare but serious bone disease, in individuals with various chronic inflammatory diseases. We hypothesised that we would find stronger associations in adults versus children and in people with autoimmune diseases. DESIGN: Retrospective cohort study. SETTING: Population-representative data (1994-2013) from general practices in the UK. PARTICIPANTS: Children and adults diagnosed with asthma; inflammatory bowel disease; juvenile, psoriatic or rheumatoid arthritis; psoriasis; or systemic lupus...
July 21, 2017: BMJ Open
https://www.readbyqxmd.com/read/28709804/identification-of-natural-regulatory-t-cell-epitopes-reveals-convergence-on-a-dominant-autoantigen
#7
John D Leonard, Dana C Gilmore, Thamotharampillai Dileepan, Wioletta I Nawrocka, Jaime L Chao, Mary H Schoenbach, Marc K Jenkins, Erin J Adams, Peter A Savage
Regulatory T (Treg) cells expressing the transcription factor Foxp3 are critical for the prevention of autoimmunity and the suppression of anti-tumor immunity. The major self-antigens recognized by Treg cells remain undefined, representing a substantial barrier to the understanding of immune regulation. Here, we have identified natural Treg cell ligands in mice. We found that two recurrent Treg cell clones, one prevalent in prostate tumors and the other associated with prostatic autoimmune lesions, recognized distinct non-overlapping MHC-class-II-restricted peptides derived from the same prostate-specific protein...
July 18, 2017: Immunity
https://www.readbyqxmd.com/read/28701395/preferential-targeting-of-conserved-gag-regions-after-vaccination-with-a-heterologous-dna-prime-modified-vaccinia-ankara-mva-boost-hiv-1-vaccine-regimen
#8
Asli Bauer, Lilli Podola, Philipp Mann, Marco Missanga, Antelmo Haule, Lwitiho Sudi, Charlotta Nilsson, Bahati Kaluwa, Cornelia Lueer, Maria Mwakatima, Patricia J Munseri, Leonard Maboko, Merlin L Robb, Sodsai Tovanabutra, Gustavo Kijak, Mary Marovich, Sheena McCormack, Sarah Joseph, Eligius Lyamuya, Britta Wahren, Eric Sandström, Gunnel Biberfeld, Michael Hoelscher, Muhammad Bakari, Arne Kroidl, Christof Geldmacher
Prime-boost vaccination strategies against HIV-1 often include multiple variants for a given immunogen for better coverage of the extensive viral diversity. To study the immunologic effects of this approach, we characterized breadth, phenotype, function and specificity of Gag-specific T cells induced by a DNA-prime Modified Vaccinia Ankara (MVA)-boost vaccination strategy, which uses mismatched Gag immunogens in the TamoVac 01 phase IIa trial. Healthy Tanzanian volunteers received three injections of the DNA-SMI vaccine encoding for a subtype B and AB-recombinant Gagp37 and two vaccinations with MVA-CMDR encoding subtype A Gagp55 Gag-specific T-cell responses were studied in 42 vaccinees using fresh peripheral blood mononuclear cells...
July 12, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28692456/focal-necrotizing-myopathy-with-dropped-head-syndrome-induced-by-cobimetinib-in-metastatic-melanoma
#9
Marie-Léa Gauci, Pauline Laly, Leonard-Louis Sarah, Anthony Behin, Jérémy Gottlieb, Isabelle Madelaine-Chambrin, Barouyr Baroudjian, Laetitia Da-Meda, Samia Mourah, Maxime Battistella, Nicole Basset Seguin, Martine Bagot, Cécile Pages, Laetitia Vercellino, Thierry Maisonobe, Céleste Lebbé
Therapeutic advances derived from targeted therapy and immune checkpoint inhibitors can improve melanoma prognosis. Since 2015, cobimetinib has been approved in combination with vemurafenib in the first-line treatment for BRAF-mutated melanoma. For NRAS-mutated melanomas, MEK inhibition seems to be a therapeutic target, and association with checkpoint inhibitor provides a further therapeutic perspective. Infraclinical creatine phosphokinase (CPK) elevation is an MEK inhibitor side effect. We describe a case of focal necrotizing myopathy with 'dropped-head syndrome' induced by cobimetinib, 1 month after its introduction...
July 7, 2017: Melanoma Research
https://www.readbyqxmd.com/read/28687071/recurrence-of-visceral-and-muco-cutaneous-leishmaniasis-in-a-patient-under-immunosuppressive-therapy
#10
Gilles Darcis, Gert Van der Auwera, Jean-Baptiste Giot, Marie-Pierre Hayette, Françoise Tassin, Jorge Arrese Estrada, Lieselotte Cnops, Michel Moutschen, Laurence de Leval, Philippe Leonard
BACKGROUND: Leishmaniasis is a protozoan disease caused by parasites of the genus Leishmania, transmitted to humans by sandflies. The diagnosis of leishmaniasis is often challenging as it mimics many other infectious or malignant diseases. The disease can present in three ways: cutaneous, mucocutaneous, or visceral leishmaniasis, which rarely occur together or consecutively. CASE PRESENTATION: The patient was a 52 years old immunosuppressed Belgian woman with a long history of severe rheumatoid arthritis...
July 7, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28682113/subjective-well-being-in-centenarians-a-comparison-of-japan-and-the-united-states
#11
Takeshi Nakagawa, Jinmyoung Cho, Yasuyuki Gondo, Peter Martin, Mary Ann Johnson, Leonard W Poon, Nobuyoshi Hirose
OBJECTIVE: The present study examined the cultural differences and similarities in the levels and predictors of subjective well-being in Japanese and American centenarians. METHOD: We analyzed data on cognitively intact Japanese (N = 59) and American (N = 125) participants from the Tokyo and Georgia Centenarian Studies, respectively. The Philadelphia Geriatric Center Morale Scale was used to measure subjective well-being, while sociodemographic, social, and health resources were assessed as potential predictors...
July 6, 2017: Aging & Mental Health
https://www.readbyqxmd.com/read/28667458/variability-in-measures-of-mineral-metabolism-in-children-on-hemodialysis-impact-on-clinical-decision-making
#12
Aadil Kakajiwala, Thomas O Jemielita, Lawrence Copelovitch, Mary B Leonard, Susan L Furth, Amy York, Maryjane Benton, Andrew N Hoofnagle, Kimberly Windt, Karen Merrigan, April Lederman, Michelle R Denburg
BACKGROUND: Variability in measures of mineral metabolism has not been studied in pediatric end stage kidney disease. We sought to determine the intra-individual variability in measures of mineral metabolism in children on hemodialysis (HD) and its impact on clinical decision-making. METHODS: We conducted a prospective single-center study of children (3.6-17.3 years old) on chronic HD. Serial twice weekly measures of serum calcium, phosphate and intact parathyroid hormone (PTH), as well as weekly measures of fibroblast growth factor 23 (FGF23) and vitamin D metabolites, were obtained over a 12-week period in 10 children...
June 30, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28660717/risk-of-urolithiasis-in-anorexia-nervosa-a-population-based-cohort-study-using-the-health-improvement-network
#13
Michelle R Denburg, Mary B Leonard, Thomas O Jemielita, Neville H Golden, Gregory Tasian, Lawrence Copelovitch
This population-based retrospective cohort study sought to determine if anorexia nervosa (AN) is associated with a higher risk of urolithiasis. Nine thousand three hundred two females with AN were compared to 92 959 randomly selected age-matched and practice-matched females. Cox regression was used to estimate the hazard ratio (HR) for urolithiasis and evaluate effect modification by age. Twenty-three participants with AN (0.25%) developed urolithiasis compared with 154 unexposed participants (0.17%) over a median of 4 years of observation...
June 29, 2017: European Eating Disorders Review: the Journal of the Eating Disorders Association
https://www.readbyqxmd.com/read/28660252/abnormal-expression-of-homeobox-genes-and-transthyretin-in-c9orf72-expansion-carriers
#14
NiCole A Finch, Xue Wang, Matthew C Baker, Michael G Heckman, Tania F Gendron, Kevin F Bieniek, Joanne Wuu, Mariely DeJesus-Hernandez, Patricia H Brown, Jeannie Chew, Karen R Jansen-West, Lillian M Daughrity, Alexandra M Nicholson, Melissa E Murray, Keith A Josephs, Joseph E Parisi, David S Knopman, Ronald C Petersen, Leonard Petrucelli, Bradley F Boeve, Neill R Graff-Radford, Yan W Asmann, Dennis W Dickson, Michael Benatar, Robert Bowser, Kevin B Boylan, Rosa Rademakers, Marka van Blitterswijk
OBJECTIVE: We performed a genome-wide brain expression study to reveal the underpinnings of diseases linked to a repeat expansion in chromosome 9 open reading frame 72 (C9ORF72). METHODS: The genome-wide expression profile was investigated in brain tissue obtained from C9ORF72 expansion carriers (n = 32), patients without this expansion (n = 30), and controls (n = 20). Using quantitative real-time PCR, findings were confirmed in our entire pathologic cohort of expansion carriers (n = 56) as well as nonexpansion carriers (n = 31) and controls (n = 20)...
August 2017: Neurology. Genetics
https://www.readbyqxmd.com/read/28652716/can-we-improve-pain-and-sleep-in-elderly-individuals-with-transcranial-direct-current-stimulation-results-from-a-randomized-controlled-pilot-study
#15
Marie-Philippe Harvey, Dominique Lorrain, Marylie Martel, Kayla Bergeron-Vezina, Francis Houde, Mario Séguin, Guillaume Léonard
BACKGROUND: The prevalence of chronic pain and sleep disturbances substantially increases with age. Pharmacotherapy remains the primary treatment option for these health issues. However, side effects and drug interactions are difficult to control in elderly individuals. AIMS: The objective of this study was to assess the feasibility of conducting a randomized sham-controlled trial and to collect preliminary data on the efficacy of transcranial direct current stimulation (tDCS) to reduce pain and improve sleep in older adults suffering from chronic pain...
2017: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/28652048/the-efficacy-of-low-intensity-vibration-to-improve-bone-health-in-patients-with-end-stage-renal-disease-is-highly-dependent-on-compliance-and-muscle-response
#16
Chamith S Rajapakse, Mary B Leonard, Elizabeth A Kobe, Michelle A Slinger, Kelly A Borges, Erica Billig, Clinton T Rubin, Felix W Wehrli
RATIONAL AND OBJECTIVES: Low intensity vibration (LIV) may represent a nondrug strategy to mitigate bone deficits in patients with end-stage renal disease. MATERIALS AND METHODS: Thirty end-stage renal patients on maintenance hemodialysis were randomized to stand for 20 minutes each day on either an active or placebo LIV device. Analysis at baseline and completion of 6-month intervention included magnetic resonance imaging (tibia and fibula stiffness; trabecular thickness, number, separation, bone volume fraction, plate-to-rod ratio; and cortical bone porosity), dual-energy X-ray absorptiometry (hip and spine bone mineral density [BMD]), and peripheral quantitative computed tomography (tibia trabecular and cortical BMD; calf muscle cross-sectional area)...
June 23, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28646995/executive-summary-of-the-2017-kdigo-chronic-kidney%C3%A2-disease-mineral-and-bone-disorder-ckd-mbd-guideline-update-what-s-changed-and-why-it-matters
#17
Markus Ketteler, Geoffrey A Block, Pieter Evenepoel, Masafumi Fukagawa, Charles A Herzog, Linda McCann, Sharon M Moe, Rukshana Shroff, Marcello A Tonelli, Nigel D Toussaint, Marc G Vervloet, Mary B Leonard
The KDIGO 2017 Clinical Practice Guideline Update for the Diagnosis, Evaluation, Prevention, and Treatment of CKD-MBD represents a selective update of the prior CKD-MBD Guideline published in 2009. This update, along with the 2009 publication, is intended to assist the practitioner caring for adults and children with chronic kidney disease (CKD), those on chronic dialysis therapy, or individuals with a kidney transplant. This review highlights key aspects of the 2017 CKD-MBD Guideline Update, with an emphasis on the rationale for the changes made to the original guideline document...
July 2017: Kidney International
https://www.readbyqxmd.com/read/28645705/acid-load-and-phosphorus-homeostasis-in-ckd
#18
Pascale Khairallah, Tamara Isakova, John Asplin, Lee Hamm, Mirela Dobre, Mahboob Rahman, Kumar Sharma, Mary Leonard, Edgar Miller, Bernard Jaar, Carolyn Brecklin, Wei Yang, Xue Wang, Harold Feldman, Myles Wolf, Julia J Scialla
BACKGROUND: The kidneys maintain acid-base homeostasis through excretion of acid as either ammonium or as titratable acids that primarily use phosphate as a buffer. In chronic kidney disease (CKD), ammoniagenesis is impaired, promoting metabolic acidosis. Metabolic acidosis stimulates phosphaturic hormones, parathyroid hormone (PTH) and fibroblast growth factor 23 (FGF-23) in vitro, possibly to increase urine titratable acid buffers, but this has not been confirmed in humans. We hypothesized that higher acid load and acidosis would associate with altered phosphorus homeostasis, including higher urinary phosphorus excretion and serum PTH and FGF-23...
June 21, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28639740/declining-rates-of-hip-fracture-in-end-stage-renal-disease-analysis-from-the-2003-2011-nationwide-inpatient-sample
#19
Sun Moon Kim, Sai Liu, Jin Long, Maria E Montez-Rath, Mary B Leonard, Glenn M Chertow
The incidence of hip fracture in patients with end-stage renal disease (ESRD) is considerably higher than that in the general age- and sex-matched population. Although medical therapy for chronic kidney disease mineral bone disorder (CKD-MBD) has changed considerably over the last decade, rates of hip fracture in the entire ESRD population have not been well-characterized. Herein, we evaluated temporal trends in rates of hip fracture, in-hospital mortality, and costs of associated hospital stay in ESRD. We identified hospitalizations for hip fracture from 2003 to 2011 using the Nationwide Inpatient Sample, a representative national database inclusive of all ages and payers...
June 22, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28629112/european-demonstration-program-on-the-effect-based-and-chemical-identification-and-monitoring-of-organic-pollutants-in-european-surface-waters
#20
Zuzana Tousova, Peter Oswald, Jaroslav Slobodnik, Ludek Blaha, Melis Muz, Meng Hu, Werner Brack, Martin Krauss, Carolina Di Paolo, Zsolt Tarcai, Thomas-Benjamin Seiler, Henner Hollert, Sanja Koprivica, Marijan Ahel, Jennifer E Schollée, Juliane Hollender, Marc J-F Suter, Anita O Hidasi, Kristin Schirmer, Manoj Sonavane, Selim Ait-Aissa, Nicolas Creusot, Francois Brion, Jean Froment, Ana Catarina Almeida, Kevin Thomas, Knut Erik Tollefsen, Sara Tufi, Xiyu Ouyang, Pim Leonards, Marja Lamoree, Victoria Osorio Torrens, Annemieke Kolkman, Merijn Schriks, Petra Spirhanzlova, Andrew Tindall, Tobias Schulze
Growing concern about the adverse environmental and human health effects of a wide range of micropollutants requires the development of novel tools and approaches to enable holistic monitoring of their occurrence, fate and effects in the aquatic environment. A European-wide demonstration program (EDP) for effect-based monitoring of micropollutants in surface waters was carried out within the Marie Curie Initial Training Network EDA-EMERGE. The main objectives of the EDP were to apply a simplified protocol for effect-directed analysis, to link biological effects to target compounds and to estimate their risk to aquatic biota...
December 1, 2017: Science of the Total Environment
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