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https://www.readbyqxmd.com/read/28314209/pharmaceuticals-removal-and-microbial-community-assessment-in-a-continuous-fungal-treatment-of-non-sterile-real-hospital-wastewater-after-a-coagulation-flocculation-pretreatment
#1
J A Mir-Tutusaus, E Parladé, M Llorca, M Villagrasa, D Barceló, S Rodriguez-Mozaz, M Martinez-Alonso, N Gaju, G Caminal, M Sarrà
Hospital wastewaters are a main source of pharmaceutical active compounds, which are usually highly recalcitrant and can accumulate in surface and groundwater bodies. Fungal treatments can remove these contaminants prior to discharge, but real wastewater poses a problem to fungal survival due to bacterial competition. This study successfully treated real non-spiked, non-sterile wastewater in a continuous fungal fluidized bed bioreactor coupled to a coagulation-flocculation pretreatment for 56 days. A control bioreactor without the fungus was also operated and the results were compared...
March 8, 2017: Water Research
https://www.readbyqxmd.com/read/28300970/falls-cuts-and-burns-in-children-0-4-years-of-age-2004-pelotas-brazil-birth-cohort
#2
Raquel Siqueira Barcelos, Iná S Santos, Alicia Matijasevich, Aluísio J D Barros, Fernando C Barros, Giovanny Vinicius Araújo França, Vera Lúcia Schmidt da Silva
Knowledge on the incidence of childhood accidents according to the child's stage of development is important for designing preventive programs targeting each age bracket. The aim of this study was to describe the incidence of falls, cuts, and burns in children up to four years of age according to family economic status and maternal age and schooling, in children from the 2004 Pelotas (Brazil) birth cohort. We calculated the incidence rates and incidence rates ratios for the 0-12, 12-24, and 24-48- months of age...
March 9, 2017: Cadernos de Saúde Pública
https://www.readbyqxmd.com/read/28300950/correlation-between-swallowing-related-quality-of-life-and-videofluoroscopy-after-head-and-neck-cancer-treatment
#3
Margareth Souza Andrade, Aline Nogueira Gonçalves, Renata Lígia Vieira Guedes, Camila Barbosa Barcelos, Luciana Dall'Agnol Siqueira Slobodticov, Simone Aparecida Claudino Lopes, Ana Lúcia Noronha Francisco, Elisabete Carrara de Angelis
Introduction: The use of symptom-specific questionnaires on head and neck cancer (HNC), together with objective swallowing measures, can be sensitive to changes in quality of life (QoL) resulting from dysphagia, but this tool is not broadly used as a complement to clinical evaluations. Purpose: To analyze the correlation between the M. D. Anderson Dysphagia Inventory (MDADI) questionnaire and videofluoroscopy (VF) in patients treated for head and neck cancer. Methods: This is a retrospective study with review of clinical data, VF and MDADI results...
March 9, 2017: CoDAS
https://www.readbyqxmd.com/read/28295342/an-information-theory-account-of-late-frontoparietal-erp-positivities-in-cognitive-control
#4
Francisco Barceló, Patrick S Cooper
ERP research on task switching has revealed distinct transient and sustained positive waveforms (latency circa 300-900 ms) while shifting task rules or stimulus-response (S-R) mappings. However, it remains unclear whether such switch-related positivities show similar scalp topography and index context-updating mechanisms akin to those posed for domain-general (i.e., classic P300) positivities in many task domains. To examine this question, ERPs were recorded from 31 young adults (18-30 years) while they were intermittently cued to switch or repeat their perceptual categorization of Gabor gratings varying in color and thickness (switch task), or else they performed two visually identical control tasks (go/no-go and oddball)...
March 15, 2017: Psychophysiology
https://www.readbyqxmd.com/read/28294064/knockdown-of-c-c-chemokine-receptor-5-ccr5-is-protective-against-cerebral-ischemia-and-reperfusion-injury
#5
Edna Constanza Gómez Victoria, Eliana Cristina de Brito Toscano, Ana Clara de Sousa Cardoso, Daniele Gonçalves da Silva, Aline Silva de Miranda, Lucíola da Silva Barcelos, Michelle Adriane Sugimoto, Lirlândia Pires Sousa, Isabel Vieira de Assis Lima, Antônio Carlos Pinheiro de Oliveira, Fátima Brant, Fabiana Simão Machado, Mauro Martins Teixeira, Antônio Lúcio Teixeira, Milene Alvarenga Rachid
BACKGROUND: Stroke is the second leading cause of death and a major cause of disability of adults worldwide. Inflammatory processes are known to contribute to the pathophysiology of cerebral ischemia, especially following reperfusion. Chemokines and their receptors are involved in migration of leukocytes and have been implicated in pathogenesis of ischemic stroke. OBJECTIVE: In the present study, we investigated the effects of C-C chemokine receptor type 5 (CCR5) deficiency on neurological outcome, brain damage and expression of pro-inflammatory chemokines: chemokine (C-X-C motif) ligand 1 (CXCL1), chemokine (CC motif) ligand 3 (CCL3) and chemokine (C-C motif) ligand 5 (CCL5), and the brain-derived neurotrophic factor (BDNF)...
March 13, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/28292669/performance-of-a-microalgal-photobioreactor-treating-toilet-wastewater-pharmaceutically-active-compound-removal-and-biomass-harvesting
#6
Andrea Hom-Diaz, Adrián Jaén-Gil, Iris Bello-Laserna, Sara Rodríguez-Mozaz, Teresa Vicent, Damià Barceló, Paqui Blánquez
In this study, a 1200L outdoor pilot scale microalgal photobioreactor (PBR) was used for toilet wastewater (WW) treatment and evaluate its ability to remove pharmaceutically active compounds (PhACs). The PBR was operated at two different hydraulic retention times (HRTs), which were 8 and 12days, during Period I (September-October) and Period II (October-December), respectively. Algal biomass concentrations varied by operating period because of seasonal changes. Nutrients (ammonia, nitrogen and total phosphorous) and chemical oxygen demand (COD) were monitored and efficiently removed in both periods (>80%), attaining the legislation limits...
March 11, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28289412/follicular-t-cells-from-smb-common-variable-immunodeficiency-patients-are-skewed-toward-a-th1-phenotype
#7
Vanesa Cunill, Antonio Clemente, Nallibe Lanio, Carla Barceló, Valero Andreu, Jaume Pons, Joana M Ferrer
Germinal center follicular T helper (GCTfh) cells are essential players in the differentiation of B cells. Circulating follicular T helper (cTfh) cells share phenotypic and functional properties with GCTfh cells. Distinct subpopulations of cTfh with different helper capabilities toward B cells can be identified: cTfh1 (CXCR3(+)CCR6(-)), cTfh2 (CXCR3(-)CCR6(-)), and cTfh17 (CXCR3(-)CCR6(+)). Alterations in cTfh function and/or distribution have been associated with autoimmunity, infectious diseases, and more recently, with several monogenic immunodeficiencies...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28289035/wck-5107-zidebactam-wck-5153-novel-inhibitors-of-pbp2-showing-potent-%C3%AE-lactam-enhancer-activity-against-pseudomonas-aeruginosa-including-multidrug-resistant-metallo-%C3%AE-lactamase-producing-high-risk-clones
#8
Bartolome Moya, Isabel M Barcelo, Sachin Bhagwat, Mahesh Patel, German Bou, Krisztina M Papp-Wallace, Robert A Bonomo, Antonio Oliver
Zidebactam and WCK 5153 are novel β-lactam enhancers that are bicyclo-acyl hydrazides (BCH), derivatives of diazabicyclooctane (DBO) scaffold, targeted for the treatment of serious infections caused by highly drug-resistant Gram-negative pathogens. In this report, we determined the PBP inhibition profiles and the antimicrobial activity of zidebactam and WCK 5153 against P. aeruginosa, including multidrug-resistant (MDR) metallo-β-lactamase (MBL)-producing high-risk clones. MICs and time-kill assays were conducted for zidebactam, WCK 5153 and antipseudomonal β-lactams using wild-type PAO1 strain, MexAB-OprM-hyperproducing (mexR), porin deficient (oprD) and AmpC-hyperproducing (dacB) derivatives of PAO1 and MBL-expressing clinical strains, ST175 (blaVIM-2) and ST111 (blaVIM-1)...
March 13, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28284634/contamination-sources-and-distribution-patterns-of-pharmaceuticals-and-personal-care-products-in-alpine-rivers-strongly-affected-by-tourism
#9
Ladislav Mandaric, Elena Diamantini, Elisa Stella, Karina Cano-Paoli, Jennifer Valle-Sistac, Daniel Molins-Delgado, Alberto Bellin, Gabriele Chiogna, Bruno Majone, M Silvia Diaz-Cruz, Sergi Sabater, Damia Barcelo, Mira Petrovic
Knowledge regarding the impact of tourism on the emergence of pharmaceuticals and personal care products (PPCPs) in Alpine river waters is limited and scarce. Therefore, a study on the occurrence patterns and spatiotemporal variability of 105 PPCPs in an Alpine river basin located in the Trentino-Alto Adige region (North-Eastern Italy) has been conducted. We observed that the total concentration of analyzed PPCPs was generally higher in all sampling sites during winter than in the summer. The analysis of tourist data revealed that during both sampling campaigns the number of tourists was lower in the downstream sites in comparison with the upstream area of the basin (Val di Sole)...
March 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28283410/insecticide-pyrethroids-in-liver-of-striped-dolphin-from-the-mediterranean-sea
#10
Òscar Aznar-Alemany, Joan Giménez, Renaud de Stephanis, Ethel Eljarrat, Damià Barceló
Pyrethroid pesticides were analysed in liver of striped dolphin (Stenella coeruleoalba) from the Alboran Sea (south of Spain, Mediterranean Sea). The occurrence and bioaccumulation of pyrethroid insecticides in marine mammal tissues from the northern hemisphere had never been determined before. Pyrethroids were detected in 87% of the specimens with a mean total concentration of 300 ng g(-1) lw ± 932 (range 2.7-5200 ng g(-1) lw). Permethrin and tetramethrin were the main contributors to the pyrethroid profiles, with enantiospecific accumulation for the first and isomer specific accumulation for the latter...
March 7, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28277963/uncoupling-basal-and-summit-metabolic-rates-in-white-throated-sparrows-digestive-demand-drives-maintenance-costs-but-changes-in-muscle-mass-are-not-needed-to-improve-thermogenic-capacity
#11
Gonzalo Barceló, Oliver P Love, François Vézina
Avian basal metabolic rate (BMR) and summit metabolic rate (Msum) vary in parallel during cold acclimation and acclimatization, which implies a functional link between these variables. However, evidence suggests that these parameters may reflect different physiological systems acting independently. We tested this hypothesis in white-throated sparrows (Zonotrichia albicollis) acclimated to two temperatures (-8° and 28°C) and two diets (0% and 30% cellulose). We expected to find an uncoupling of Msum and BMR where Msum, a measure of maximal shivering heat production, would reflect muscle and heart mass variation and would respond only to temperature, while BMR would reflect changes in digestive and excretory organs in response to daily food intake, responding to both temperature and diet...
March 2017: Physiological and Biochemical Zoology: PBZ
https://www.readbyqxmd.com/read/28274275/whole-exome-sequencing-coupled-with-unbiased-functional-analysis-reveals-new-hirschsprung-disease-genes
#12
Hongsheng Gui, Duco Schriemer, William W Cheng, Rajendra K Chauhan, Guillermo Antiňolo, Courtney Berrios, Marta Bleda, Alice S Brooks, Rutger W W Brouwer, Alan J Burns, Stacey S Cherny, Joaquin Dopazo, Bart J L Eggen, Paola Griseri, Binta Jalloh, Thuy-Linh Le, Vincent C H Lui, Berta Luzón-Toro, Ivana Matera, Elly S W Ngan, Anna Pelet, Macarena Ruiz-Ferrer, Pak C Sham, Iain T Shepherd, Man-Ting So, Yunia Sribudiani, Clara S M Tang, Mirjam C G N van den Hout, Herma C van der Linde, Tjakko J van Ham, Wilfred F J van IJcken, Joke B G M Verheij, Jeanne Amiel, Salud Borrego, Isabella Ceccherini, Aravinda Chakravarti, Stanislas Lyonnet, Paul K H Tam, Maria-Mercè Garcia-Barceló, Robert M W Hofstra
BACKGROUND: Hirschsprung disease (HSCR), which is congenital obstruction of the bowel, results from a failure of enteric nervous system (ENS) progenitors to migrate, proliferate, differentiate, or survive within the distal intestine. Previous studies that have searched for genes underlying HSCR have focused on ENS-related pathways and genes not fitting the current knowledge have thus often been ignored. We identify and validate novel HSCR genes using whole exome sequencing (WES), burden tests, in silico prediction, unbiased in vivo analyses of the mutated genes in zebrafish, and expression analyses in zebrafish, mouse, and human...
March 8, 2017: Genome Biology
https://www.readbyqxmd.com/read/28269103/effect-of-importance-sampling-on-robust-segmentation-of-audio-cough-events-in-noisy-environments
#13
Jesus Monge-Alvarez, Carlos Hoyos-Barcelo, Paul Lesso, Javier Escudero, Keshav Dahal, Pablo Casaseca-de-la-Higuera
This paper proposes a new cough detection system based on audio signals acquired from conventional smartphones. The system relies on local Hu moments to characterize cough events and a Λ-NN classifier to distinguish cough events from non-cough ones (speech, laugh, sneeze, etc.) and noisy sounds. To deal with the unbalance between classes, we employ Distinct-Borderline2 Synthetic Minority Oversampling Technique and a bespoke cost matrix. The system additionally features a post-processing module to avoid isolated false negatives and, this way, increases sensitivity...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28264262/a-new-species-of-i-phylloicus-i-m%C3%A3-ller-1880-trichoptera-calamoceratidae-from-esp%C3%A3-rito-santo-state-southeastern-brazil
#14
Patrik Barcelos-Silva, Gleison Robson Desidério, Ana Maria Pes
The worldwide caddisfly family Calamoceratidae comprises about 175 extant species in eight genera (Holzenthal et al. 2007). Among these, two are exclusively recorded from the Neotropics: Banyallarga Navás with 18 described species (Prather 2004) and Phylloicus Müller with 57 described species (Prather 2003, Dumas & Nessimian 2010, Santos & Nessimian 2010, Quinteiro et al. 2011), both genera recently reviewed by Prather (2003, 2004).
March 2, 2017: Zootaxa
https://www.readbyqxmd.com/read/28263411/a-mild-and-regiospecific-synthesis-of-pyrazoleboranes
#15
Joseph P A Harrity, Andrew Brown, Julia Comas-Barcelo
Alkynylboranes show unprecedented reactivity in their [4 + 2] cycloaddition of sydnones offering access to fully substituted pyrazoles within a few hours at room temperature. This method delivers synthetically valuable pyrazoleboranes with complete control of regioselectivity, and these intermediates can be further elaborated through functionalization of the C-B bond.
March 6, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28261498/tomographic-aspects-of-advanced-active-pulmonary-tuberculosis-and-evaluation-of-sequelae-following-treatment
#16
Rafael Barcelos Capone, Domenico Capone, Thiago Mafort, Roberto Mogami, Rosana de Souza Rodrigues, Miriam Menna Barreto, Rogerio Rufino
Objectives. To evaluate tomographic changes in pulmonary tuberculosis (TB), degree of agreement among three radiologists regarding tomographic diagnoses, and sequelae following treatment. Methods. Cross-sectional and descriptive study of 74 TB patients confirmed by sputum culture and chest computed tomography before (CT1) and 6 months after (CT2) drug therapy. Results were performed by three radiologists blinded to clinical and laboratory results. Results. Main findings in CT1 included nodules indicating the presence of a tree-in-bud pattern in 93% of cases, ill-defined nodules in 84% of cases, consolidation in 77% of cases, architectural distortion in 71% of cases, cavitary lesions in 62% of cases, and ground glass opacities in 37% of cases...
2017: Pulmonary Medicine
https://www.readbyqxmd.com/read/28259425/incidence-associated-factors-and-clinical-impact-of-severe-infections-in-a-large-multicentric-cohort-of-patients-with-systemic-lupus-erythematosus
#17
Íñigo Rúa-Figueroa, Javier López-Longo, María Galindo-Izquierdo, Jaime Calvo-Alén, Víctor Del Campo, Alejandro Olivé-Marqués, Sabina Pérez-Vicente, Antonio Fernández-Nebro, Mariano Andrés, Celia Erausquin, Eva Tomero, Loreto Horcada, Esther Uriarte, Mercedes Freire, Carlos Montilla, Ana Sánchez-Atrio, Gregorio Santos, Alina Boteanu, Elvira Díez-Álvarez, Javier Narváez, Víctor Martínez-Taboada, Lucía Silva-Fernández, Esther Ruiz-Lucea, José Luis Andreu, José Ángel Hernández-Beriain, Marian Gantes, Blanca Hernández-Cruz, José Pérez-Venegas, Ángela Pecondón-Español, Carlos Marras, Mónica Ibáñez-Barceló, Gema Bonilla, Vicente Torrente, Iván Castellví, Juan José Alegre, Joan Calvet, Jose Luis Marenco, Enrique Raya, Tomás Vázquez, Victor Quevedo, Santiago Muñoz-Fernández, Manuel Rodríguez-Gómez, Jesús Ibáñez, José M Pego-Reigosa
OBJECTIVES: To estimate the incidence of severe infection and investigate the associated factors and clinical impact in a large systemic lupus erythematosus (SLE) retrospective cohort. METHODS: All patients in the Spanish Rheumatology Society Lupus Registry (RELESSER) who meet ≥4 ACR-97 SLE criteria were retrospectively investigated for severe infections. Patients with and without infections were compared in terms of SLE severity, damage, comorbidities, and demographic characteristics...
January 27, 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/28249020/the-use-of-mesoscale-eddies-by-juvenile-loggerhead-sea-turtles-caretta-caretta-in-the-southwestern-atlantic
#18
Peter Gaube, Caren Barceló, Dennis J McGillicuddy, Andrés Domingo, Philip Miller, Bruno Giffoni, Neca Marcovaldi, Yonat Swimmer
Marine animals, such as turtles, seabirds and pelagic fishes, are observed to travel and congregate around eddies in the open ocean. Mesoscale eddies, large swirling ocean vortices with radius scales of approximately 50-100 km, provide environmental variability that can structure these populations. In this study, we investigate the use of mesoscale eddies by 24 individual juvenile loggerhead sea turtles (Caretta caretta) in the Brazil-Malvinas Confluence region. The influence of eddies on turtles is assessed by collocating the turtle trajectories to the tracks of mesoscale eddies identified in maps of sea level anomaly...
2017: PloS One
https://www.readbyqxmd.com/read/28241208/association-between-telomere-length-and-risk-of-cancer-and-non-neoplastic-diseases-a-mendelian-randomization-study
#19
Philip C Haycock, Stephen Burgess, Aayah Nounu, Jie Zheng, George N Okoli, Jack Bowden, Kaitlin Hazel Wade, Nicholas J Timpson, David M Evans, Peter Willeit, Abraham Aviv, Tom R Gaunt, Gibran Hemani, Massimo Mangino, Hayley Patricia Ellis, Kathreena M Kurian, Karen A Pooley, Rosalind A Eeles, Jeffrey E Lee, Shenying Fang, Wei V Chen, Matthew H Law, Lisa M Bowdler, Mark M Iles, Qiong Yang, Bradford B Worrall, Hugh Stephen Markus, Rayjean J Hung, Chris I Amos, Amanda B Spurdle, Deborah J Thompson, Tracy A O'Mara, Brian Wolpin, Laufey Amundadottir, Rachael Stolzenberg-Solomon, Antonia Trichopoulou, N Charlotte Onland-Moret, Eiliv Lund, Eric J Duell, Federico Canzian, Gianluca Severi, Kim Overvad, Marc J Gunter, Rosario Tumino, Ulrika Svenson, Andre van Rij, Annette F Baas, Matthew J Bown, Nilesh J Samani, Femke N G van t'Hof, Gerard Tromp, Gregory T Jones, Helena Kuivaniemi, James R Elmore, Mattias Johansson, James Mckay, Ghislaine Scelo, Robert Carreras-Torres, Valerie Gaborieau, Paul Brennan, Paige M Bracci, Rachel E Neale, Sara H Olson, Steven Gallinger, Donghui Li, Gloria M Petersen, Harvey A Risch, Alison P Klein, Jiali Han, Christian C Abnet, Neal D Freedman, Philip R Taylor, John M Maris, Katja K Aben, Lambertus A Kiemeney, Sita H Vermeulen, John K Wiencke, Kyle M Walsh, Margaret Wrensch, Terri Rice, Clare Turnbull, Kevin Litchfield, Lavinia Paternoster, Marie Standl, Gonçalo R Abecasis, John Paul SanGiovanni, Yong Li, Vladan Mijatovic, Yadav Sapkota, Siew-Kee Low, Krina T Zondervan, Grant W Montgomery, Dale R Nyholt, David A van Heel, Karen Hunt, Dan E Arking, Foram N Ashar, Nona Sotoodehnia, Daniel Woo, Jonathan Rosand, Mary E Comeau, W Mark Brown, Edwin K Silverman, John E Hokanson, Michael H Cho, Jennie Hui, Manuel A Ferreira, Philip J Thompson, Alanna C Morrison, Janine F Felix, Nicholas L Smith, Angela M Christiano, Lynn Petukhova, Regina C Betz, Xing Fan, Xuejun Zhang, Caihong Zhu, Carl D Langefeld, Susan D Thompson, Feijie Wang, Xu Lin, David A Schwartz, Tasha Fingerlin, Jerome I Rotter, Mary Frances Cotch, Richard A Jensen, Matthias Munz, Henrik Dommisch, Arne S Schaefer, Fang Han, Hanna M Ollila, Ryan P Hillary, Omar Albagha, Stuart H Ralston, Chenjie Zeng, Wei Zheng, Xiao-Ou Shu, Andre Reis, Steffen Uebe, Ulrike Hüffmeier, Yoshiya Kawamura, Takeshi Otowa, Tsukasa Sasaki, Martin Lloyd Hibberd, Sonia Davila, Gang Xie, Katherine Siminovitch, Jin-Xin Bei, Yi-Xin Zeng, Asta Försti, Bowang Chen, Stefano Landi, Andre Franke, Annegret Fischer, David Ellinghaus, Carlos Flores, Imre Noth, Shwu-Fan Ma, Jia Nee Foo, Jianjun Liu, Jong-Won Kim, David G Cox, Olivier Delattre, Olivier Mirabeau, Christine F Skibola, Clara S Tang, Merce Garcia-Barcelo, Kai-Ping Chang, Wen-Hui Su, Yu-Sun Chang, Nicholas G Martin, Scott Gordon, Tracey D Wade, Chaeyoung Lee, Michiaki Kubo, Pei-Chieng Cha, Yusuke Nakamura, Daniel Levy, Masayuki Kimura, Shih-Jen Hwang, Steven Hunt, Tim Spector, Nicole Soranzo, Ani W Manichaikul, R Graham Barr, Bratati Kahali, Elizabeth Speliotes, Laura M Yerges-Armstrong, Ching-Yu Cheng, Jost B Jonas, Tien Yin Wong, Isabella Fogh, Kuang Lin, John F Powell, Kenneth Rice, Caroline L Relton, Richard M Martin, George Davey Smith
Importance: The causal direction and magnitude of the association between telomere length and incidence of cancer and non-neoplastic diseases is uncertain owing to the susceptibility of observational studies to confounding and reverse causation. Objective: To conduct a Mendelian randomization study, using germline genetic variants as instrumental variables, to appraise the causal relevance of telomere length for risk of cancer and non-neoplastic diseases. Data Sources: Genomewide association studies (GWAS) published up to January 15, 2015...
February 23, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28238574/could-hypoxia-acclimation-cause-morphological-changes-and-protect-against-mn-induced-oxidative-injuries-in-silver-catfish-rhamdia-quelen-even-after-reoxygenation
#20
G S Dolci, H Z Rosa, L T Vey, C S Pase, R C S Barcelos, V T Dias, L Loebens, P Dalla Vecchia, C A Bizzi, B Baldisserotto, M E Burger
Exposure to hypoxia has shown beneficial adjustments in different species, including silver catfish (Rhamdia quelen), especially in situations of aquatic contamination with pollutants such as manganese (Mn). Considering that hypoxia is seasonal in the natural aquatic environment, we decided to assess whether these adaptive mechanisms could be maintained when reoxygenation is established. Silver catfish acclimated to moderate hypoxia (∼3 mg L(-1), 41% O2 saturation) for 10 days and subsequently exposed to Mn (∼8...
February 23, 2017: Environmental Pollution
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