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https://www.readbyqxmd.com/read/28818605/anthropogenic-pbde-and-naturally-produced-meo-pbde-brominated-compound-levels-in-bizerte-lagoon-clams-ruditapes-decussatus-levels-and-human-health-risk-assessment
#1
Yassine El Megdiche, Walid Ben Ameur, Hammami Bèchir, Sihem Ben Hassine, Barhoumi Badreddine, Soufiane Touil, Mohamed Ridha Driss, Ethel Eljarrat, Damia Barceló
Information on the occurrence of organobrominated compounds in bivalves from Tunisia is scarce. To the best of our knowledge, this is the first report of these compounds in clams from Tunisia. The aim of this study is to measure natural and synthetic organobrominated compound concentrations and evaluate congener distribution and pollution sources in a clam species (Ruditapes decussatus) from three sites of the Bizerte Lagoon. Total synthetic organobrominated pollutant levels in clam ranged from 34.8 to 188ngg(-1)lw...
August 14, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28815284/analysis-of-lipophilic-marine-biotoxins-by-liquid-chromatography-coupled-with-high-resolution-mass-spectrometry-in-seawater-from-the-catalan-coast
#2
Cristina Bosch-Orea, Josep Sanchís, Marinella Farré, Damià Barceló
Marine biotoxins regularly occur along the coast, with several consequences for the environment as well as the food industry. Monitoring of these compounds in seawater is required to assure the safety of marine resources for human consumption, providing a means for forecasting shellfish contamination events. In this study, an analytical method was developed for the detection of ten lipophilic marine biotoxins in seawater: azaspiracids 1, 2, 3, 4 and 5, classified as azaspiracid shellfish poisoning toxins, and pectenotoxin 2, okadaic acid and the related dinophysistoxin 1, yessotoxin and homoyessotoxin, classified as diarrheic shellfish poisoning toxins...
August 16, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28783904/five-year-monitoring-of-19-illicit-and-legal-substances-of-abuse-at-the-inlet-of-a-wastewater-treatment-plant-in-barcelona-ne-spain-and-estimation-of-drug-consumption-patterns-and-trends
#3
Nicola Mastroianni, Ester López-García, Cristina Postigo, Damià Barceló, Miren López de Alda
Illicit and legal drugs of abuse, including alcohol, continue to be in the focus of many governmental national and international studies due to the important consequences of their consumption at both individual and social level. Estimation of drug use at the community level from the concentrations of the drugs themselves or their major metabolites measured in wastewater has become an increasingly accepted and extended tool, complementary to the methods traditionally used for this purpose. The present work describes the application of this approach, generally known as wastewater epidemiology, to investigate the latest drug consumption patterns and trends in the European city of Barcelona...
July 31, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28774601/formation-of-iodo-trihalomethanes-iodo-haloacetic-acids-and-haloacetaldehydes-during-chlorination-and-chloramination-of-iodine-containing-waters-in-laboratory-controlled-reactions
#4
Cristina Postigo, Susan D Richardson, Damia Barceló
Iodine containing disinfection by-products (I-DBPs) and haloacetaldehydes (HALs) are emerging disinfection by-product (DBP) classes of concern. The former due to its increased potential toxicity and the latter because it was found to be the third most relevant DBP class in mass in a U.S. nationwide drinking water study. These DBP classes have been scarcely investigated, and this work was performed to further explore their formation in drinking water under chlorination and chloramination scenarios. In order to do this, iodo-trihalomethanes (I-THMs), iodo-haloacetic acids (I-HAAs) and selected HALs (mono-HALs and di-HALs species, including iodoacetaldehyde) were investigated in DBP mixtures generated after chlorination and chloramination of different water matrices containing different levels of bromide and iodide in laboratory controlled reactions...
August 2017: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/28769991/modelling-the-range-expansion-of-the-tiger-mosquito-in-a-mediterranean-island-accounting-for-imperfect-detection
#5
Giacomo Tavecchia, Miguel-Angel Miranda, David Borrás, Mikel Bengoa, Carlos Barceló, Claudia Paredes-Esquivel, Carl Schwarz
BACKGROUNDS: Aedes albopictus (Diptera; Culicidae) is a highly invasive mosquito species and a competent vector of several arboviral diseases that have spread rapidly throughout the world. Prevalence and patterns of dispersal of the mosquito are of central importance for an effective control of the species. We used site-occupancy models accounting for false negative detections to estimate the prevalence, the turnover, the movement pattern and the growth rate in the number of sites occupied by the mosquito in 17 localities throughout Mallorca Island...
2017: Frontiers in Zoology
https://www.readbyqxmd.com/read/28761334/concerns-of-patients-with-systemic-lupus-erythematosus-and-adherence-to-therapy-a-qualitative-study
#6
Filipa Farinha, Francisco Freitas, Ana Águeda, Inês Cunha, Anabela Barcelos
PURPOSE: The objectives of this study were 1) to identify the impact of systemic lupus erythematosus (SLE) on patients' lives and their reactions to this, as well as their main concerns and expectations regarding their disease and treatments; and 2) to assess the relationship between these concerns and the adherence to treatments, medical visits, and diagnostic tests. PATIENTS AND METHODS: Qualitative study, using a convenient sample of SLE patients attending an outpatient rheumatology clinic...
2017: Patient Preference and Adherence
https://www.readbyqxmd.com/read/28754178/evaluation-of-microvascular-endothelial-function-in-patients-with-infective-endocarditis-using-laser-speckle-contrast-imaging-and-skin-video-capillaroscopy-research-proposal-of-a-case-control-prospective-study
#7
Amanda Barcelos, Cristiane Lamas, Eduardo Tibiriça
OBJECTIVE: Infective endocarditis is a severe condition with high in-hospital and 5-year mortality. There is increasing incidence of infective endocarditis, which may be related to healthcare and changes in prophylaxis recommendations regarding oral procedures. Few studies have evaluated the microcirculation in patients with infective endocarditis, and so far, none have utilized laser-based technology or evaluated functional capillary density. The aim of the study is to evaluate the changes in the systemic microvascular bed of patients with both acute and subacute endocarditis...
July 28, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28752331/the-association-of-neighborhood-context-with-health-outcomes-among-ethnic-minority-breast-cancer-survivors
#8
Chenkai Wu, Kimlin Tam Ashing, Veronica C Jones, Lisa Barcelo
While individual-level determinants of health, such as education and income, have been well documented among breast cancer survivors, little is known about the role of neighborhood context on survivorship outcomes among this population. The present study examined the association of neighborhood stress with multiple health outcomes among ethnic minority breast cancer survivors (BCS). A mixed-methods approach was used to recruit 320 African-American and Hispanic BCS who were 26-89 years and lived in metropolitan Los Angeles, CA...
July 27, 2017: Journal of Behavioral Medicine
https://www.readbyqxmd.com/read/28746576/quality-of-cervical-cancer-screening-in-brazil-external-assessment-of-the-pmaq
#9
Mara Rejane Barroso Barcelos, Rita de Cássia Duarte Lima, Elaine Tomasi, Bruno Pereira Nunes, Suele Manjourany Silva Duro, Luiz Augusto Facchini
OBJECTIVE: To examine whether demographic and socioeconomic variables and the variables of the organization of services are associated with the quality of cervical cancer screening. METHODS: This is a survey carried out in the health services of the five Brazilian regions in 2012. The sample consisted of users of basic health units participating in the Program for Improving Access and Quality of the Primary Care. The independent variables analyzed were: socioeconomic characteristics (municipal context), demographic characteristics (user profile), and two domains related to the organization of basic services (work structure and process)...
July 20, 2017: Revista de Saúde Pública
https://www.readbyqxmd.com/read/28743603/pre-and-post-natal-melatonin-administration-partially-regulates-brain-oxidative-stress-but-does-not-improve-cognitive-or-histological-alterations-in-the-ts65dn-mouse-model-of-down-syndrome
#10
Andrea Corrales, Eduardo B Parisotto, Verónica Vidal, Susana García-Cerro, Sara Lantigua, Marian Diego, Danilo Wilhem Filho, Emilio J Sanchez-Barceló, Carmen Martínez-Cué, Noemí Rueda
Melatonin administered during adulthood induces beneficial effects on cognition and neuroprotection in the Ts65Dn (TS) mouse model of Down syndrome. Here, we investigated the effects of pre- and post-natal melatonin treatment on behavioral and cognitive abnormalities and on several neuromorphological alterations (hypocellularity, neurogenesis impairment and increased oxidative stress) that appear during the early developmental stages in TS mice. Pregnant TS females were orally treated with melatonin or vehicle from the time of conception until the weaning of the offspring, and the pups continued to receive the treatment from weaning until the age of 5 months...
July 23, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28738268/descriptive-epidemiology-of-primary-malignant-and-non-malignant-central-nervous-tumors-in-spain-results-from-the-girona-cancer-registry-1994-2013
#11
Rafael Fuentes-Raspall, Marta Solans, Aina Roca-Barceló, Loreto Vilardell, Montse Puigdemont, Sonia Del Barco, Raquel Comas, Adelaida García-Velasco, Aurora Astudillo, Mª Carme Carmona-Garcia, Rafael Marcos-Gragera
BACKGROUND: Systematic registration of non-malignant central nervous system (CNS) tumors is a rare practice among European cancer registries. Thus, the real burden of all CNS tumors across Europe is underestimated. The Girona Cancer Registry provides here the first data on CNS tumor incidence and survival trends in Spain for all histological types, including malignant and non-malignant tumors. METHODS: Data on all incident cases of primary CNS tumors notified to the Girona population-based cancer registry from 1994 to 2013 (n=2,131) were reviewed...
July 21, 2017: Cancer Epidemiology
https://www.readbyqxmd.com/read/28733818/occurrence-and-distribution-of-six-selected-endocrine-disrupting-compounds-in-surface-and-groundwaters-of-the-romagna-area-north-italy
#12
Emanuela Pignotti, Marinella Farré, Damià Barceló, Enrico Dinelli
Endocrine disrupting compounds (EDCs) are a wide group of contaminants of emerging concern known to be harmful for organisms. The aim of the study was to assess the occurrence and distribution of six EDCs (estrone-E1, ß-estradiol-E2, 17α-ethinylestradiol-EE2, bisphenol A-BPA, perfluooctanoic acid-PFOA, perfluorooctane sulfonate-PFOS) in the Apenninic rivers and groundwaters of the Romagna area (North of Italy). Groundwaters were unaffected by EDC contamination, while all classes of compounds were detected at concentrations above the method quantification limit (MQL) in the majority of the river bodies...
July 21, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28732804/interactions-of-a-prenylated-flavonoid-from-dalea-elegans-with-fluconazole-against-azole-resistant-candida-albicans
#13
Sebastián Barceló, Mariana Peralta, Maximiliano Calise, Soledad Finck, Gabriela Ortega, Roberto A Diez, José Luis Cabrera, Cristina Pérez
BACKGROUND: The prenylated flavonoid 2', 4'-dihydroxy-5'-(1'″, 1'″-dimethylallyl)-8-prenylpinocembrin (8PP, formerly 6PP) shows antifungal activity, inhibits rhodamine 6G efflux and reverses fluconazole (FCZ) resistance in azole-resistant Candida albicans overexpressing cdr1, cdr2 and mdr1 transporters. PURPOSE AND DESIGN: In this paper, we tried to characterize 8PP in vitro interactions on the cell growth and lethality of C. albicans. We also initiated preliminary in vivo toxicological studies on mice...
August 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28731305/the-role-of-lead-ii-in-nucleic-acids
#14
Joana Palou-Mir, Miquel Barceló-Oliver, Roland K O Sigel
Although lead(II) is naturally not associated with nucleic acids, this metal ions has been applied with DNA and RNA in various contexts. Pb2+ is an excellent hydrolytic metal ion for nucleic acids, which is why it is mainly used as probing agent for secondary structure and to determine metal ion binding sites both in vitro and in vivo. A further application of lead(II) is in structural studies, i.e., NMR, but also in X-ray crystallography, mostly using this heavy metal to solve the phase problem in the latter method...
April 10, 2017: Metal Ions in Life Sciences
https://www.readbyqxmd.com/read/28726269/previous-physical-exercise-alters-the-hepatic-profile-of-oxidative-inflammatory-status-and-limits-the-secondary-brain-damage-induced-by-severe-traumatic-brain-injury-in-rats
#15
Mauro Robson Torres de Castro, Ana Paula de Oliveira Ferreira, Guilherme Lago Busanello, Luís Roberto Hart da Silva, Mauro Eduardo Porto da Silveira Junior, Fernando da Silva Fiorin, Gabriela Arrifano, Maria Elena Crespo-López, Rômulo Pillon Barcelos, María J Cuevas, Guilherme Bresciani, Javier González-Gallego, Michele Rechia Fighera, Luiz Fernando Freire Royes
KEY POINTS: An early inflammatory response and oxidative stress are implicated in the signal transduction that alters both hepatic redox status and mitochondrial function after traumatic brain injury (TBI). Peripheral oxidative/inflammatory responses contribute to neuronal dysfunction after TBI Exercise training alters the profile of oxidative-inflammatory status in liver and protects against acute hyperglycaemia and a cerebral inflammatory response after TBI. Approaches such as exercise training, which attenuates neuronal damage after TBI, may have therapeutic potential through modulation of responses by metabolic organs...
July 20, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28724225/seasonal-variations-in-the-occurrence-of-perfluoroalkyl-substances-in-water-sediment-and-fish-samples-from-ebro-delta-catalonia-spain
#16
Emanuela Pignotti, Gemma Casas, Marta Llorca, Anil Tellbüscher, David Almeida, Enrico Dinelli, Marinella Farré, Damià Barceló
The main objective of this study was to assess the concentration levels and the seasonal variations of 13 poly- and perfluoroalkyl substances (PFASs) in different compartments (water, sediments and fish) of the Ebro Delta (NE Spain) and surrounding coastal areas. Perfluorooctanoic acid (PFOA) was the most frequently detected compound in waters and sediments. Perfluorocarboxylic acids (PFCAs) were the compounds found at the highest concentrations in water samples. On the other hand, sediments were more enriched in perfluorooctanesulfonate (PFOS) (range<1...
July 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28721826/clinical-uses-of-melatonin-in-neurological-diseases-and-mental-and-behavioural-disorders
#17
Emilio J Sánchez-Barceló, Noemi R Revilla, María D Mediavilla, Carmen Martínez-Cué, Russel J Reiter
Melatonin is a molecule with numerous properties applicable to the treatment of neurological diseases. Among these properties are the following: potent scavenger of oxygen and nitrogen reactive species, anti-inflammatory features, immuno-enhancing nature, and modulation of circadian rhythmicity. Furthermore, low concentrations of melatonin are usually found in patients with neurological diseases and mental disorders. The positive results obtained in experimental models of diverse pathologies, including diseases of the nervous system (e...
July 18, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28716492/unusual-presenting-manifestation-of-a-rare-polyposis-cowden-syndrome
#18
Luisa Adán Merino, Mercedes Aldeguer Martínez, Federico Álvarez Rodríguez, Marta Barceló López, Rocío Plaza Santos, Fátima Valentín Gómez
No abstract text is available yet for this article.
July 14, 2017: Gastroenterología y Hepatología
https://www.readbyqxmd.com/read/28714411/pharmacology-and-literature-review-based-on-related-death-and-non-fatal-case-reports-of-the-benzofurans-and-benzodifurans-designer-drugs
#19
Bernardino Barceló Martín, Isabel Gomila
BACKGROUND: Benzofurans and benzodifurans are two groups of psychoactive substances that had originally been synthesized for research purpose. Benzofurans' structure is quite similar to the known recreational drug 3,4-methylenedioxymethamphetamine together with its active metabolite 3,4-methylenedioxyamphetamine. Benzodifurans are closely related to phenethylamines, but have more hallucinogens effects and much longer duration of action. This study aims to review the accessible evidence-based literature on benzofurans and benzodifurans pharmacology and toxicology...
July 14, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28712918/topical-nitric-oxide-releasing-nanoparticles-are-effective-in-a-murine-model-of-dermal-trichophyton-rubrum-dermatophytosis
#20
Breanne Mordorski, Caroline Barcelos Costa-Orlandi, Ludmila M Baltazar, Leandro J Carreño, Angelo Landriscina, Jamie Rosen, Mahantesh Navati, Maria Jose Soares Mendes-Giannini, Joel M Friedman, Joshua D Nosanchuk, Adam J Friedman
Systemic therapies are preferred for treating dermal dermatophytosis due to inadequate penetration of topical agents. However, systemic antifungals are associated with off-target effects and limited tissue penetration, and antimicrobial resistance is a growing concern. To address this, we investigated topical nitric oxide-releasing nanoparticles (NO-np), which have been used against superficial fungal infections and bacterial abscesses. In addition to enhanced penetration and permeation conferred by nanoparticles, nitric oxide, a broad-spectrum multi-mechanistic antimicrobial agent, offers decreased likelihood of resistance development...
July 13, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
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