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https://www.readbyqxmd.com/read/29224232/physical-activity-and-family-based-obesity-treatment-a-review-of-expert-recommendations-on-physical-activity-in-youth
#1
REVIEW
C Foster, J B Moore, C R Singletary, J A Skelton
Targeting physical inactivity in children is pertinent to aiding in the decrease of childhood obesity rates. Only 33% of adolescents are obtaining the recommended goal of at least 60 min of physical activity per day. The objectives of this review are to summarize professional recommendations for physical activity and exercise in children and adolescents, and identify family-centred strategies that can be implemented by weight management clinicians. Clinically oriented recommendations and policy statements from professional organizations were identified through literature and internet searches, summarized using rubrics of aerobic, muscle strengthening and bone strengthening exercise, then examined for details on family-based focus, inclusion of child developmental stage and age, and application to the prevention and treatment of obesity...
December 10, 2017: Clinical Obesity
https://www.readbyqxmd.com/read/29223907/analytical-indicators-to-characterize-particulate-organic-matter-pom-and-its-evolution-in-french-vertical-flow-constructed-wetlands-vfcws
#2
M Kania, M Gautier, Z Ni, E Bonjour, R Guégan, P Michel, P Jame, J Liu, R Gourdon
The design of French VFCWs leads to the formation of a sludge layer at the surface of the first filters due to the retention of suspended solids from the percolation of unsettled wastewater. This layer plays a major role in the system but still little is known on its characteristics and evolutions. In this study, suspended solids and sludge deposits sampled from two French VFCW plants were analyzed by different methods in the objective to assess the evolution of particulate organic matter (POM) along the treatment chain and within the sludge layer, and identify relevant analytical indicators of these phenomena...
December 7, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29223901/thermally-enhanced-in-situ-bioremediation-of-groundwater-contaminated-with-chlorinated-solvents-a-field-test
#3
Jan Němeček, Jana Steinová, Roman Špánek, Tomáš Pluhař, Petr Pokorný, Petra Najmanová, Vladislav Knytl, Miroslav Černík
In situ bioremediation (ISB) using reductive dechlorination is a widely accepted but relatively slow approach compared to other technologies for the treatment of groundwater contaminated by chlorinated ethenes (CVOCs). Due to the known positive kinetic effect on microbial metabolism, thermal enhancement may be a viable means of accelerating ISB. We tested thermally enhanced ISB in aquifers situated in sandy saprolite and underlying fractured granite. The system comprised pumping, heating and subsequent injection of contaminated groundwater aiming at an aquifer temperature of 20-30°C...
December 7, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29223611/individuals-exhibit-consistent-differences-in-their-metabolic-rates-across-changing-thermal-conditions
#4
Sonya K Auer, Karine Salin, Graeme J Anderson, Neil B Metcalfe
Metabolic rate has been linked to growth, reproduction, and survival at the individual level and is thought to have far reaching consequences for the ecology and evolution of organisms. However, differences in metabolic rate among individuals must be consistent (i.e. repeatable) over at least some portion of their lifetime in order to predict their longer-term effects on population dynamics and how they will respond to selection. Previous studies demonstrate that metabolic rates are repeatable under constant conditions but potentially less so in more variable environments...
December 6, 2017: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/29223156/biochemical-properties-and-phylogeny-of-hydroxypyruvate-reductases-from-methanotrophic-bacteria-with-different-c1-assimilation-pathways
#5
S Y But, S V Egorova, V N Khmelenina, Y A Trotsenko
In the aerobic methanotrophic bacteria Methylomicrobium alcaliphilum 20Z, Methylococcus capsulatus Bath, and Methylosinus trichosporium OB3b, the biochemical properties of hydroxypyruvate reductase (Hpr), an indicator enzyme of the serine pathway for assimilation of reduced C1-compounds, were comparatively analyzed. The recombinant Hpr obtained by cloning and heterologous expression of the hpr gene in Escherichia coli catalyzed NAD(P)H-dependent reduction of hydroxypyruvate or glyoxylate, but did not catalyze the reverse reactions of D-glycerate or glycolate oxidation...
November 2017: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/29223093/combined-sharon-and-anammox-processes-for-ammoniacal-nitrogen-stabilisation-in-landfill-bioreactors
#6
S Sri Shalini, Kurian Joseph
Stabilisation of ammoniacal nitrogen from solid waste and leachate significantly improved by combining novel processes like SHARON (single reactor system for high activity ammonia removal over nitrite) and ANAMMOX (anaerobic ammonium oxidation) with advantages of lower carbon requirements, aeration and N2O emissions. This paper deals with establishing combined SHARON-ANAMMOX processes in situ pilot-scale landfill bioreactors (LFBR). Molecular analysis in LFBR with changes in nitrogen, hydrazine, hydroxylamine confirmed aerobic and anaerobic ammonium oxidising bacteria (AOB & ANAMMOX) as key players in SHARON-ANAMMOX processes...
October 21, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29222942/microbial-communities-in-natural-rubber-coagula-during-maturation-impacts-on-technological-properties-of-dry-natural-rubber
#7
Mélanie Salomez, Maeva Subileau, Tatiana Vallaeys, Sylvain Santoni, Fréderic Bonfils, Jérôme Sainte-Beuve, Jutharat Intapun, Françoise Granet, Laurent Vaysse, Éric Dubreucq
AIM: To characterize microbial communities present in natural rubber coagula from Hevea brasiliensis latex during maturation and identify microbial taxa (bacteria and fungi) having an impact on dry natural rubber properties. METHODS AND RESULTS: Microbial community dynamics in natural rubber coagula maturated under controlled conditions were compared and related with the evolution of dry natural rubber properties. The pyrosequencing of 16S (119,837 effective reads) and 18S (131,879 effective reads) rRNA gene regions was performed on 21 samples covering different maturation times and two aeration conditions...
December 9, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/29222941/characterization-of-the-spoilage-potential-of-pure-and-mixed-cultures-of-bacterial-species-isolated-from-tropical-yellowfin-tuna-thunnus-albacares
#8
Adèle Silbande, Josiane Cornet, Mireille Cardinal, Frédérique Chevalier, Katia Rochefort, Juliette Smith-Ravin, Sandra Adenet, Françoise Leroi
AIM: The spoilage potential of 28 bacterial strains isolated from spoiled raw yellowfin tuna was evaluated. METHODS AND RESULTS: Bacterial species were inoculated in irradiated tuna matrix. Chemical changes, bacterial growth and sensory quality were monitored during aerobic storage at 8°C. Pseudomonas spp., Enterobacter spp. and Escherichia hermanii had no spoiling effect. Brochothrix thermosphacta and Carnobacterium divergens/maltaromaticum developed moderate unpleasant odors...
December 9, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/29222739/effects-of-two-aerobic-exercise-training-protocols-on-parameters-of-oxidative-stress-in-the-blood-and-liver-of-obese-rats
#9
Daniela Delwing-de Lima, Ariene Sampaio Souza Farias Ulbricht, Carla Werlang-Coelho, Débora Delwing-Dal Magro, Victor Hugo Antonio Joaquim, Eloise Mariani Salamaia, Silvana Rodrigues de Quevedo, Larissa Desordi
We evaluated the effects of moderate-intensity continuous training (MICT) and high-intensity interval training (HIIT) protocols on the alterations in oxidative stress parameters caused by a high-fat diet (HFD), in the blood and liver of rats. The HFD enhanced thiobarbituric acid reactive substances (TBA-RS) and protein carbonyl content, while reducing total sulfhydryl content and catalase (CAT) and glutathione peroxidase (GSH-Px) activities in the blood. Both training protocols prevented an increase in TBA-RS and protein carbonyl content, and prevented a reduction in CAT...
December 8, 2017: Journal of Physiological Sciences: JPS
https://www.readbyqxmd.com/read/29222443/metabolic-versatility-of-small-archaea-micrarchaeota-and-parvarchaeota
#10
Lin-Xing Chen, Celia Méndez-García, Nina Dombrowski, Luis E Servín-Garcidueñas, Emiley A Eloe-Fadrosh, Bao-Zhu Fang, Zhen-Hao Luo, Sha Tan, Xiao-Yang Zhi, Zheng-Shuang Hua, Esperanza Martinez-Romero, Tanja Woyke, Li-Nan Huang, Jesús Sánchez, Ana Isabel Peláez, Manuel Ferrer, Brett J Baker, Wen-Sheng Shu
Small acidophilic archaea belonging to Micrarchaeota and Parvarchaeota phyla are known to physically interact with some Thermoplasmatales members in nature. However, due to a lack of cultivation and limited genomes on hand, their biodiversity, metabolisms, and physiologies remain largely unresolved. Here, we obtained 39 genomes from acid mine drainage (AMD) and hot spring environments around the world. 16S rRNA gene based analyses revealed that Parvarchaeota were only detected in AMD and hot spring habitats, while Micrarchaeota were also detected in others including soil, peat, hypersaline mat, and freshwater, suggesting a considerable higher diversity and broader than expected habitat distribution for this phylum...
December 8, 2017: ISME Journal
https://www.readbyqxmd.com/read/29222139/effect-of-losartan-on-rv-dysfunction-results-from-the-double-blind-randomized-redefine-trial-in-adults-with-repaired-tetralogy-of-fallot
#11
Jouke P Bokma, Michiel M Winter, Arie P van Dijk, Hubert W Vliegen, Joost P van Melle, Folkert Meijboom, Martijn C Post, Jacqueline K Berbee, S Matthijs Boekholdt, Maarten Groenink, Aeilko H Zwinderman, Barbara J M Mulder, Berto J Bouma
Background -The effect of angiotensin II receptor blockers (ARBs) on right ventricular (RV) function is still unknown. ARBs are beneficial in patients with acquired left ventricular (LV) dysfunction and recent findings suggested a favorable effect in symptomatic patients with systemic RV dysfunction. The current study aimed to determine the effect of losartan, an ARB, on subpulmonary RV dysfunction in adults after repair of tetralogy of Fallot (rTOF). Methods -REDEFINE is an investigator-initiated, multicenter, prospective, 1:1 randomized, double-blind, placebo-controlled study...
December 8, 2017: Circulation
https://www.readbyqxmd.com/read/29222101/divergence-in-gene-regulation-contributes-to-sympatric-speciation-of-shewanella-baltica-strains
#12
Jie Deng, Jennifer Auchtung, Konstantinos T Konstantinidis, Alejandro Caro-Quintero, Ingrid Brettar, Manfred Höfle, James M Tiedje
Niche partitioning and sequence evolution drive genomic and phenotypic divergence, which ultimately leads to bacterial diversification. This study investigated genomic composition of two Shewanella baltica clades previously identified through multi-locus sequencing typing and recovered from the redox transition zone in the central Baltic Sea. Comparative genomic analysis revealed significantly higher inter- than intra-clade genomic dissimilarity, and that a subset of genes present in Clade A were associated with potential adaptation to respiration of sulfur compounds present in the redox-transition zone...
December 8, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29222096/aerobic-transformation-of-2-4-dinitrotoluene-by-escherichia-coli-and-its-implications-for-the-detection-of-trace-explosives
#13
Benjamin Shemer, Sharon Yagur-Kroll, Carina Hazan, Shimshon Belkin
DNT (2,4-dinitrotoluene), a volatile impurity in military grade TNT-based explosives, is a potential tracer for the detection of buried landmines and other explosive devices. We have previously described an Escherichia coli bioreporter strain engineered to detect traces of DNT, and have demonstrated that the yqjF gene promoter, the sensing element of this bioreporter, is induced not by DNT but by at least one of its transformation products. In the present study we have characterized the initial stages of DNT biotransformation in E...
December 8, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29222029/rapid-regulation-of-substrate-use-for-oxidative-phosphorylation-during-a-single-session-of-high-intensity-interval-or-aerobic-exercises-in-different-rat-skeletal-muscles
#14
Eduarda Lopes Martins, Juliana Carvalho Ricardo, Eduardo de-Souza-Ferreira, Juliana Camacho-Pereira, Dionizio Ramos-Filho, Antonio Galina
Different exercise protocols lead to long-term adaptations that are related to increased mitochondrial content through the activation of mitochondrial biogenesis. However, immediate mitochondrial response to exercise and energetic substrate utilization is still unknown. We evaluate the mitochondrial physiology of two types rat skeletal muscle fibres immediately after a single session of high intensity interval exercise (HIIE) or aerobic exercise (AER). We found AER was able to reduce the ATP synthesis dependent oxygen flux in the tibialis (TA) when stimulated by complex I and II substrates...
December 5, 2017: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/29221849/molecular-regulation-of-fatty-acid-oxidation-in-skeletal-muscle-during-aerobic-exercise
#15
REVIEW
Anne-Marie Lundsgaard, Andreas Mæchel Fritzen, Bente Kiens
This review summarizes how fatty acid (FA) oxidation is regulated in skeletal muscle during exercise. From the available evidence it seems that acetyl-CoA availability in the mitochondrial matrix adjusts FA oxidation to exercise intensity and duration. This is executed at the step of mitochondrial fatty acyl import, as the extent of acetyl group sequestration by carnitine determines the availability of carnitine for the carnitine palmitoyltransferase 1 (CPT1) reaction. The rate of glycolysis seems therefore to be central to the amount of β-oxidation-derived acetyl-CoA that is oxidized in the tricarboxylic acid (TCA) cycle...
December 5, 2017: Trends in Endocrinology and Metabolism: TEM
https://www.readbyqxmd.com/read/29221502/impact-of-cardiorespiratory-fitness-on-frequency-of-atrial-fibrillation-stroke-and-all-cause-mortality
#16
Nasir Hussain, Bernard J Gersh, Karina Gonzalez Carta, Nóra Sydó, Francisco Lopez-Jimenez, Stephen L Kopecky, Randal J Thomas, Samuel J Asirvatham, Thomas G Allison
Benefits of cardiorespiratory fitness on cardiovascular health are well recognized, but the impact on incidence of atrial fibrillation (AF) and stroke, and, particularly, risk of stroke and mortality in patients with AF is less clear. From 1993 to 2010, patients referred for a treadmill exercise test (TMET) at the Mayo Clinic Rochester, MN, were retrospectively identified (N = 76,857). From this, 14,094 local residents were selected. Exclusions were age <18 years; history of heart failure, structural or valvular heart disease, AF or flutter, or stroke...
January 1, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/29221144/ucp2-overexpression-enhanced-glycolysis-via-activation-of-pfkfb2-during-skin-cell-transformation
#17
Annapoorna Sreedhar, Petra Petruska, Sumitra Miriyala, Manikandan Panchatcharam, Yunfeng Zhao
Uncoupling protein 2 (UCP2) is an inner mitochondrial membrane transporter which is often upregulated in human cancers. However, how this anion transporter affects tumorigenesis is not well understood. Using the skin cell transformation JB6 model, we demonstrated that UCP2 overexpression activated phosphofructokinase 2/fructose-2,6-bisphosphatase 2 (PFKFB2), a key regulator of glycolysis. In conjunction, upregulation of PFKFB2 expression correlated with elevated fructose 2,6-bisphosphate (Fru-2,6-P2) levels, 6-phosphofructo-1-kinase (PFK-1) activity, glucose uptake, and lactate production...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29220806/enhanced-bioremediation-of-4-nonylphenol-and-cadmium-co-contaminated-sediment-by-composting-with-phanerochaete-chrysosporium-inocula
#18
Piao Xu, Cui Lai, Guangming Zeng, Danlian Huang, Ming Chen, Biao Song, Xin Peng, Jia Wan, Liang Hu, Abing Duan, Wangwang Tang
Composting is identified as an effective approach for solid waste disposal. The bioremediation of 4-nonylphenol (4NP) and cadmium (Cd) co-contaminated sediment was investigated by composting with Phanerochaete chrysosporium (P. chrysosporium) inocula. P. chrysosporium inocula and proper C/N ratios (25.51) accelerated the composting process accompanied with faster total organic carbon loss, 4NP degradation and Cd passivation. Microbiological analysis demonstrated that elevated activities of lignocellulolytic enzymes and sediment enzymes was conducive to organic chemical transformation...
November 23, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29220735/regulation-of-sulfur-deprivation-induced-expression-of-the-ferredoxin-encoding-fdx5-gene-chlamydomonas-reinhardtii-in-aerobic-conditions
#19
Zhanneta Zalutskaya, Ekaterina Minaeva, Valentina Filina, Mariya Ostroukhova, Elena Ermilova
The unicellular green alga Chlamydomonas reinhardtii reacts to sulfur (S) starvation with the increased expression of numerous genes. One gene which is induced in illuminated anaerobic S-deprived cells is the ferredoxin-5 gene (FDX5). To test FDX5 transcriptional regulation in aerobic cultures, we used a real-time PCR analysis and an artificial microRNA approach. We demonstrated that FDX5 gene is controlled by S deprivation independently of anoxia-treatment. The Ser/Thr kinase SNRK2.1 is necessary for expression of FDX5 during deprivation to S...
December 2, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/29220717/microbial-electricity-driven-anoxic-ammonium-removal
#20
Anna Vilajeliu-Pons, Christin Koch, Maria D Balaguer, Jesús Colprim, Falk Harnisch, Sebastià Puig
Removal of nitrogen, mainly in form of ammonium (NH4+), in wastewater treatment plants (WWTPs) is a highly energy demanding process, mainly due to aeration. It causes costs of about half a million Euros per year in an average European WWTP. Alternative, more economical technologies for the removal of nitrogen compounds from wastewater are required. This study proves the complete anoxic conversion of ammonium (NH4+) to dinitrogen gas (N2) in continuously operated bioelectrochemical systems at the litre-scale...
December 1, 2017: Water Research
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