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https://www.readbyqxmd.com/read/28524015/presence-of-mycobacterium-avium-subs-paratuberculosis-dna-in-milk-used-to-feed-calves-in-portugal
#1
Célia Leão, Ana Botelho, Elisabete Martins, Carla Aguiar, Inês Rebelo, Telmo Nunes, Ricardo Bexiga
This Technical Research communication describes results of a study aimed at detecting the presence of Map in milk fed to calves, and identifying possible risk factors for that presence. A questionnaire was performed on 37 dairy farms and waste milk samples were collected on 3 occasions separated by a minimum of 1 week. For farms not feeding waste milk, bulk tank milk samples were collected instead. A real time PCR for the detection of the IS900 sequence was performed for the detection of Map. A majority of farms (89·2%) fed waste milk, with only one pasteurising the milk before feeding it to calves...
May 2017: Journal of Dairy Research
https://www.readbyqxmd.com/read/28523000/mast-cells-and-mcpt4-chymase-promote-renal-impairment-after-partial-ureteral-obstruction
#2
Maguelonne Pons, Liza Ali, Walid Beghdadi, Luca Danelli, Marianne Alison, Lydia Celia Madjène, Jessica Calvo, Julien Claver, Shamila Vibhushan, Magnus Åbrink, Gunnar Pejler, Marie-Laurence Poli-Mérol, Michel Peuchmaur, Alaa El Ghoneimi, Ulrich Blank
Obstructive nephropathy constitutes a major cause of pediatric renal progressive disease. The mechanisms leading to disease progression are still poorly understood. Kidney fibrotic lesions are reproduced using a model of partial unilateral ureteral obstruction (pUUO) in newborn mice. Based on data showing significant mast cell (MC) infiltration in patients, we investigated the role of MC and murine MCPT4, a MC-released chymase, in pUUO using MC- (W(sh/sh)), MCPT4-deficient (Mcpt4(-/-)), and wild-type (WT) mice...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28521908/differentiating-between-rhinosinusitis-and-mastoiditis-surgery-from-postmortem-medical-training-a-study-of-two-identified-skulls-and-hospital-records-from-early-20th-century-coimbra-portugal
#3
Bruno M Magalhães, Célia Lopes, Ana Luísa Santos
Differentiating between medical procedures performed antemortem, perimortem or postmortem in skeletal remains can be a major challenge. This work aims to present evidence of procedures to treat rhinosinusitis (RS) and mastoiditis, suggest criteria for the diagnosis of frontal sinus disease, and frame the individuals described in their medical historical context. In the International Exchange collection, the skull (878) of a 24-year-old male, who died in 1933 due to frontal sinusitis and meningitis, presents evidence of a trepanation above the right frontonasal suture, and micro/macroporosity on the superciliary arches...
June 2017: International Journal of Paleopathology
https://www.readbyqxmd.com/read/28503909/genetic-risk-score-and-cardiovascular-mortality-in-a-southern-european-population-with-coronary-artery-disease
#4
Andreia Pereira, Maria Isabel Mendonca, Ana Célia Sousa, Sofia Borges, Sónia Freitas, Eva Henriques, Mariana Rodrigues, Ana Isabel Freitas, Graça Guerra, Ilídio Ornelas, Décio Pereira, António Brehm, Roberto Palma Dos Reis
Several genetic risk scores (GRS) have been associated with cardiovascular disease; their role, however, in survival from proven coronary artery disease (CAD) have yielded conflicting results. OBJECTIVE: The objective of this study was to evaluate long-term cardiovascular mortality according to the genetic risk score in a Southern European population with CAD. METHODS: A cohort of 1464 CAD patients with angiographic proven CAD were followed up prospectively for up to 58...
May 15, 2017: International Journal of Clinical Practice
https://www.readbyqxmd.com/read/28498233/wearable-sensor-technology-efficacy-in-peripheral-vascular-disease-wstep-a-randomized-controlled-trial
#5
Pasha Normahani, Richard Kwasnicki, Colin Bicknell, Louise Allen, Mike P Jenkins, Richard Gibbs, Nicholas Cheshire, Ara Darzi, Celia Riga
OBJECTIVE: To evaluate the effect of using wearable activity monitors (WAMs) in patients with intermittent claudication (IC) within a single-center randomized controlled trial. BACKGROUND: WAMs allow users to set daily activity targets and monitor their progress. They may offer an alternative treatment to supervised exercise programs (SEPs) for patients with IC. METHODS: Thirty-seven patients with IC were recruited and randomized into intervention or control group...
May 11, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28497259/safety-and-tolerability-of-intravenous-valproic-acid-in-healthy-subjects-a-phase-i-dose-escalation-trial
#6
Patrick E Georgoff, Vahagn C Nikolian, Tess Bonham, Manjunath P Pai, Celia Tafatia, Ihab Halaweish, Kathleen To, Kuanwong Watcharotone, Aishwarya Parameswaran, Ruijuan Luo, Duxin Sun, Hasan B Alam
BACKGROUND: Valproic acid, a histone deacetylase inhibitor, has beneficial effects in the setting of cancer, neurologic diseases, and traumatic injuries. In animal models of traumatic injury, a single dose of valproic acid has been shown to reduce mortality. The purpose of this trial was to determine the maximum tolerated single dose of intravenous valproic acid in healthy humans. METHODS: A double-blinded, placebo-controlled, dose-escalation trial design was used to identify dose-limiting toxicities in healthy subjects who received a single dose of intravenous valproic acid...
May 11, 2017: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/28491342/hair-cortisol-and-lifetime-discrimination-moderation-by-subjective-social-status
#7
Kymberlee M O'Brien, Jerrold Meyer, Edward Tronick, Celia L Moore
Discrimination has been associated with elevated cortisol as measured in saliva, blood, and urine. This study investigated the association between lifetime discrimination and hair cortisol concentrations, considered a measure of chronic stress. We recruited 180 young adults from diverse backgrounds. Participant responses to lifetime discrimination, home stress, and subjective status measures were recorded. Lifetime discrimination significantly predicted hair cortisol concentrations, supporting past research that discrimination experiences impact neuroendocrine systems...
January 2017: Health Psychology Open
https://www.readbyqxmd.com/read/28480888/hepatic-p63-regulates-steatosis-via-ikk%C3%AE-er-stress
#8
Begoña Porteiro, Marcos F Fondevila, Teresa C Delgado, Cristina Iglesias, Monica Imbernon, Paula Iruzubieta, Javier Crespo, Amaia Zabala-Letona, Johan Fernø, Bárbara González-Terán, Nuria Matesanz, Lourdes Hernández-Cosido, Miguel Marcos, Sulay Tovar, Anxo Vidal, Julia Sánchez-Ceinos, Maria M Malagon, Celia Pombo, Juan Zalvide, Arkaitz Carracedo, Xabier Buque, Carlos Dieguez, Guadalupe Sabio, Miguel López, Patricia Aspichueta, María L Martínez-Chantar, Ruben Nogueiras
p53 family members control several metabolic and cellular functions. The p53 ortholog p63 modulates cellular adaptations to stress and has a major role in cell maintenance and proliferation. Here we show that p63 regulates hepatic lipid metabolism. Mice with liver-specific p53 deletion develop steatosis and show increased levels of p63. Down-regulation of p63 attenuates liver steatosis in p53 knockout mice and in diet-induced obese mice, whereas the activation of p63 induces lipid accumulation. Hepatic overexpression of N-terminal transactivation domain TAp63 induces liver steatosis through IKKβ activation and the induction of ER stress, the inhibition of which rescues the liver functions...
May 8, 2017: Nature Communications
https://www.readbyqxmd.com/read/28475738/appetite-for-health-related-food-taxes-new-zealand-stakeholder-views
#9
Louise N Signal, Carolyn Watts, Celia Murphy, Helen Eyles, Cliona Ni Mhurchu
There is increasing discussion globally of the value of health-related food taxes and subsidies to address obesity and noncommunicable diseases. In order for such policies to be successful it is important to understand the positions of key stakeholders. This research investigated New Zealand (NZ) stakeholders' views on the feasibility and acceptability of selected health-related food taxes and subsidies over the next 5 to 10 years. Twenty semi-structured interviews were undertaken by telephone from November 2014 to May 2015...
May 5, 2017: Health Promotion International
https://www.readbyqxmd.com/read/28470148/peroxisomal-dysfunctions-cause-lysosomal-storage-and-axonal-kv1-channel-redistribution-in-peripheral-neuropathy
#10
Sandra Kleinecke, Sarah Richert, Livia de Hoz, Britta Brügger, Theresa Kungl, Ebrahim Asadollahi, Susanne Quintes, Judith Blanz, Rhona McGonigal, Kobra Naseri, Michael W Sereda, Timo Sachsenheimer, Christian Lüchtenborg, Wiebke Möbius, Hugh Willison, Myriam Baes, Klaus-Armin Nave, Celia Michèle Kassmann
Impairment of peripheral nerve function is frequent in neurometabolic diseases, but mechanistically not well understood. Here, we report a novel disease mechanism and the finding that glial lipid metabolism is critical for axon function, independent of myelin itself. Surprisingly, nerves of Schwann cell-specific Pex5 mutant mice were unaltered regarding axon numbers, axonal calibers, and myelin sheath thickness by electron microscopy. In search for a molecular mechanism, we revealed enhanced abundance and internodal expression of axonal membrane proteins normally restricted to juxtaparanodal lipid-rafts...
May 4, 2017: ELife
https://www.readbyqxmd.com/read/28460010/molecular-and-functional-bases-of-selection-against-a-mutation-bias-in-an-rna-virus
#11
Ignacio de la Higuera, Cristina Ferrer-Orta, Ana I de Ávila, Celia Perales, Macarena Sierra, Kamalendra Singh, Stefan G Sarafianos, Yves Dehouck, Ugo Bastolla, Nuria Verdaguer, Esteban Domingo
The selective pressures acting on viruses that replicate under enhanced mutation rates are largely unknown. Here, we describe resistance of foot-and-mouth disease virus to the mutagen 5-fluorouracil (FU) through a single polymerase substitution that prevents an excess of A to G and U to C transitions evoked by FU on the wild-type foot-and-mouth disease virus, while maintaining the same level of mutant spectrum complexity. The polymerase substitution inflicts upon the virus a fitness loss during replication in absence of FU but confers a fitness gain in presence of FU...
May 1, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28459837/predicted-strain-coverage-of-a-meningococcal-multicomponent-vaccine-4cmenb-in-portugal
#12
Maria João Simões, Célia Bettencourt, Rosita De Paola, Maria Giuliani, Mariagrazia Pizza, Monica Moschioni, Jorge Machado
OBJECTIVE: Although the incidence of meningococcal disease has been declining over the past decade in Portugal MenB meningococci is still an important cause of meningitis and sepsis. The aim of this study was to estimate the strain coverage of the 4CMenB vaccine in Portugal in order to support health policies for prevention and control of meningococcal disease. METHODS: Since 2002 the clinical and laboratory notification of meningococcal disease is mandatory in Portugal...
2017: PloS One
https://www.readbyqxmd.com/read/28451399/preliminary-evaluation-of-circulating-micrornas-as-potential-biomarkers-in-paracoccidioidomycosis
#13
Junya De Lacorte Singulani, Julhiany De Fátima Da Silva, Fernanda Patricia Gullo, Marina Célia Costa, Ana Marisa Fusco-Almeida, Francisco Javier Enguita, Maria José Soares Mendes-Giannini
MicroRNAs (miRNAs) are small RNAs (length, 19-24 nucleotides) that regulate gene expression by either mRNA degradation or translational inhibition of proteins. Circulating miRNAs, which are extremely stable and protected from RNAse-mediated degradation in body fluids, have appeared as candidate biomarkers for numerous diseases. However, little is known about circulating miRNAs in fungal infections. Paracoccidioidomycosis (PCM) is caused by the Paracoccidioides species, and is endemic in Central and South America, with predominance in adult male workers from rural areas...
March 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28428742/a-set-based-mixed-effect-model-for-gene-environment-interaction-and-its-application-to-neuroimaging-phenotypes
#14
Changqing Wang, Jianping Sun, Bryan Guillaume, Tian Ge, Derrek P Hibar, Celia M T Greenwood, Anqi Qiu
Imaging genetics is an emerging field for the investigation of neuro-mechanisms linked to genetic variation. Although imaging genetics has recently shown great promise in understanding biological mechanisms for brain development and psychiatric disorders, studying the link between genetic variants and neuroimaging phenotypes remains statistically challenging due to the high-dimensionality of both genetic and neuroimaging data. This becomes even more challenging when studying gene-environment interaction (G×E) on neuroimaging phenotypes...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28416463/glucocorticoids-activate-a-synapse-weakening-pathway-culminating-in-tau-phosphorylation-in-the-hippocampus
#15
Jee Hyun Yi, Christopher Brown, Garry Whitehead, Thomas Piers, Young Seok Lee, Celia Martinez Perez, Philip Regan, Daniel J Whitcomb, Kwangwook Cho
Evidence suggests that the stress hormones glucocorticoids (GCs) can cause cognitive deficits and neurodegeneration. Previous studies have found GCs facilitate physiological synapse weakening, termed long-term depression (LTD), though the precise mechanisms underlying this are poorly understood. Here we show that GCs activate glycogen synthase kinase-3 (GSK-3), a kinase crucial to synapse weakening signals. Critically, this ultimately leads to phosphorylation of the microtubule associated protein tau, specifically at the serine 396 residue, and this is a causal factor in the GC-mediated impairment of synaptic function...
April 14, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28416347/blood-collection-vials-and-clinically-used-intravenous-fluids-contain-significant-amounts-of-nitrite
#16
Luis E F Almeida, Sayuri Kamimura, Margaret Y Nettleton, Celia M de Souza Batista, Elizabeth Walek, Alfia Khaibullina, Li Wang, Zenaide M N Quezado
The biology of the inorganic anion nitrite is linked to nitric oxide (NO) as nitrite can be reduced to NO and mediate its biological activities. Thus, studies of nitrite biology require sensitive and selective chemical assays. The acetic and ascorbic acids method is selective for nitrite and measures it in biological matrices. However, one of the pitfalls of nitrite measurements is its ubiquitous presence in sample collection tubes. Here, we showed high levels of nitrite in collection tubes containing EDTA, sodium citrate or sodium heparin and smaller amounts in tubes containing lithium heparin or serum clot activator...
April 15, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28413713/catastrophic-outcome-of-patients-with-a-rebound-after-natalizumab-treatment-discontinuation
#17
Inés González-Suarez, Luis Rodríguez de Antonio, Aida Orviz, Sara Moreno-García, María D Valle-Arcos, Jordi A Matias-Guiu, Cristina Valencia, Manuela Jorquera Moya, Celia Oreja-Guevara
INTRODUCTION: Natalizumab (NTZ) is an effective drug for the treatment of relapsing-remitting multiple sclerosis. In some patients discontinuation is mandatory due to the risk of progressive multifocal leukoencephalopathy. However, severe clinical and radiological worsening has been described after drug cessation. Our aim was to describe the clinical and radiological features of the rebound phenomenon. MATERIAL AND METHODS: Patients switched from NTZ to Fingolimod (FTY) who had presented a rebound after discontinuation were selected...
April 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28399423/bone-mineral-density-and-vitamin-d-concentration-the-challenges-in-taking-care-of-children-and-adolescents-infected-with-hiv
#18
Fabiana Bononi Carmo, Maria Teresa Terreri, Regina Célia de Menezes Succi, Suenia Vasconcelos Beltrão, Aida de Fátima Tomé Barbosa Gouvea, Erica Regina Cruz Paulino, Daisy Maria Machado
The increase in life expectancy for patients living with human immunodeficiency virus (HIV) infection has resulted in health complications related to a chronic disease. OBJECTIVES: To evaluate the prevalence of bone mineral density (BMD) alterations and vitamin D concentrations in HIV-infected children and adolescents and to verify the variations in those parameters during a 12-month interval. METHODS: A prospective cohort study with a dual period of evaluation was conducted in 57 patients perinatally HIV-infected and one patient with sexual abuse in early infancy...
April 8, 2017: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28390853/familial-hypercholesterolemia-in-childhood-and-adolescents-a-hidden-reality
#19
Núria Plana, Cèlia Rodríguez-Borjabad, Daiana Ibarretxe, Lluís Masana
Familial hypercholesterolemia (FH) is the most common genetic disorder in childhood, but in most cases is not detected. High levels of low-density lipoprotein cholesterol are present since the child's birth and this fact will suppose silent development of early atherosclerosis. In cases of homozygous FH, the coronary disease will appear before 20s and in cases of heterozygous FH will occur in middle age. Despite published data, there is not agreement about how and when perform the screening. Familial history of early cardiovascular disease plus presence of hypercholesterolemia in parents is crucial for detection and diagnosis...
April 5, 2017: Clínica e Investigación en Arteriosclerosis
https://www.readbyqxmd.com/read/28387599/novel-insights-into-systemic-autoimmune-rheumatic-diseases-using-shared-molecular-signatures-and-an-integrative-analysis
#20
Marie Hudson, Sasha Bernatsky, Ines Colmegna, Maximilien Lora, Tomi Pastinen, Kathleen Klein Oros, Celia M T Greenwood
We undertook this study to identify DNA methylation signatures of three systemic autoimmune rheumatic diseases (SARDs), namely rheumatoid arthritis, systemic lupus erythematosus, and systemic sclerosis, compared to healthy controls. Using a careful design to minimize confounding, we restricted our study to subjects with incident disease and performed our analyses on purified CD4(+) T cells, key effector cells in SARD. We identified differentially methylated (using the Illumina Infinium HumanMethylation450 BeadChip array) and expressed (using the Illumina TruSeq stranded RNA-seq protocol) sites between cases and controls, and investigated the biological significance of this SARD signature using gene annotation databases...
April 7, 2017: Epigenetics: Official Journal of the DNA Methylation Society
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