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https://www.readbyqxmd.com/read/28094209/simplified-low-dose-rate-infant-total-body-irradiation
#1
Nels Knutson, Y James Rao, Sridhar Yaddanapudi, Stephanie M Perkins, H Harold Li
PURPOSE: Low-dose-rate total body irradiation (LDR TBI) in infants possesses unique challenges because of the setup limitations imposed by anesthesia. We present an LDR TBI method with an anteroposterior/posteroanterior arrangement and dose rate < 10 cGy/minute for infants (thickness <14 cm) without the use of a beam attenuator. MATERIALS AND METHODS: The delivery used a 6 MV TrueBeam linear accelerator (Varian Medical Systems, Palo Alto, CA) with adjustable meterset rates below 100 MU/minute...
October 24, 2016: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28093894/importance-of-body-water-in-the-efficacy-of-convective-solute-transport-in-online-hemodiafiltration
#2
Nicolás Macías, Alba Santos García, Almudena Vega Martínez, Soraya Abad Estébanez, Marian Goicoechea Diezhandino, Juan Manuel López Gómez
High-volume online hemodiafiltration (OL-HDF) has been associated with improved patient survival compared to conventional hemodialysis in recent trials, where the importance of convective volume (CV) in this benefit is noted. The purpose of this study was to determine the corporal composition parameters influencing the efficacy of CV in the removal of different molecular weight (MW) molecules. Demographic data, corporal composition parameters with bioimpedance spectroscopy, dialysis features and the reduction rates of different MW molecules in a four-hour OL-HDF session were collected in 61 patients...
January 16, 2017: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/28092731/biological-removal-of-selenate-and-ammonium-by-activated-sludge-in-a-sequencing-batch-reactor
#3
J Mal, Y V Nancharaiah, E D van Hullebusch, P N L Lens
Wastewaters contaminated by both selenium and ammonium need to be treated prior to discharge into natural water bodies, but there are no studies on the simultaneous removal of selenium and ammonium. A sequencing batch reactor (SBR) was inoculated with activated sludge and operated for 90days. The highest ammonium removal efficiency achieved was 98%, while the total nitrogen removal was 75%. Nearly a complete chemical oxygen demand removal efficiency was attained after 16days of operation, whereas complete selenate removal was achieved only after 66days...
January 3, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28091998/palliative-effects-of-extra-virgin-olive-oil-gallic-acid-and-lemongrass-oil-dietary-supplementation-on-growth-performance-digestibility-carcass-traits-and-antioxidant-status-of-heat-stressed-growing-new-zealand-white-rabbits
#4
Adham A Al-Sagheer, Ahmed H Daader, Hassan A Gabr, Elham A Abd El-Moniem
This study explored the effects of supplemental dietary extra virgin olive oil (EVOO), gallic acid (GA), or lemongrass essential oil (LGEO) on growth performance, nutrient digestibility, carcass traits, lipid peroxidation, hematological, and antioxidative status in growing rabbits under heat stress conditions. A total of 48 male growing New Zealand White rabbits were randomly divided into four equal groups, which received a basal diet without any supplementation or supplemented with 15 g EVOO, 500 mg GA, or 400 mg LGEO/kg of diet, for eight consecutive weeks...
January 14, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28091740/controlling-eutrophication-in-a-mediterranean-shallow-reservoir-by-phosphorus-loading-reduction-the-need-for-an-integrated-management-approach
#5
Mikel Zaragüeta, Pablo Acebes
Increased nutrient enrichment in Mediterranean standing waters has enhanced the risk of being affected by cyanobacterial blooms. Because phosphorus abatement is shaped as a crucial strategy for controlling eutrophication, this study introduces a structural thinking, experiential learning laboratory with animation dynamic model elaborated for Cazalegas Reservoir (Spain) to assess the feasibility of implementing a set of internal and external control measures and hydromorphological adjustments to meet the goal of oligotrophication...
January 13, 2017: Environmental Management
https://www.readbyqxmd.com/read/28089477/bioimpedance-and-fluid-status-in-children-and-adolescents-treated-with-dialysis
#6
Gregorio P Milani, Jaap W Groothoff, Federica A Vianello, Emilio F Fossali, Fabio Paglialonga, Alberto Edefonti, Carlo Agostoni, Dario Consonni, Dewi van Harskamp, Johannes B van Goudoever, Henk Schierbeek, Michiel J S Oosterveld
BACKGROUND: Assessment of hydration status in patients with chronic kidney failure treated by dialysis is crucial for clinical management decisions. Dilution techniques are considered the gold standard for measurement of body fluid volumes, but they are unfit for day-to-day care. Multifrequency bioimpedance has been shown to be of help in clinical practice in adults and its use in children and adolescents has been advocated. We investigated whether application of multifrequency bioimpedance is appropriate for total-body water (TBW) and extracellular water (ECW) measurement in children and adolescents on dialysis therapy...
January 12, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28086774/androgenic-effects-of-aqueous-and-methanolic-extracts-of-ficus-asperifolia-in-male-wistar-rats
#7
Pierre Watcho, Hermine Meli Watio, Modeste Wankeu-Nya, Esther Ngadjui, Patrick Deeh Defo, Pepin Alango Nkeng-Efouet, Telesphore Benoit Nguelefack, Albert Kamanyi
BACKGROUND: Androgen deficiency is a clinical syndrome resulting from the inability of the testes to produce physiological levels of testosterone due to a disturbance occurring at one or more levels of the hypothalamic-pituitary-testicular axis. The present study was undertaken to evaluate the androgenic properties of aqueous and methanolic extracts of Ficus asperifolia on normal and castrated immature rats. METHODS: Normal rats were treated either per os with aqueous or methanolic extract of Ficus asperifolia (100 mg/kg or 500 mg/kg b...
January 13, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28079705/prescribed-drinking-leads-to-better-cycling-performance-than-ad-libitum-drinking
#8
Costas N Bardis, Stavros A Kavouras, J D Adams, Nickos D Geladas, Demosthenis B Panagiotakos, Labros S Sidossis
: Drinking ad libitum during exercise often leads to dehydration ranging from -1 to -3% of body weight. PURPOSE: To study the effect of a prescribed hydration protocol matching fluid losses on a simulated 30-km criterium-like cycling performance in the heat (31.6±0.5 °C). METHOD: Ten elite, heat-acclimatized, male endurance cyclists (30±5 y, 76.5±7.2 kg, 1.81±0.07 m, VO2peak: 61.3±5.2 ml[BULLET OPERATOR]min[BULLET OPERATOR]kg, body fat: 10...
January 10, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28079262/pediatric-obesity-pharmacokinetic-alterations-and-effects-on-antimicrobial-dosing
#9
Stephanie Natale, John Bradley, William Huy Nguyen, Tri Tran, Pamela Ny, Kirsten La, Eva Vivian, Jennifer Le
BACKGROUND: Limited data exist for appropriate drug dosing in obese children. This comprehensive review summarizes pharmacokinetic alterations that occur with age and obesity, and these effects on antimicrobial dosing. A thorough comparison of different measures of body weight and specific antimicrobial agents, including cefazolin, cefepime, ceftazidime, daptomycin, doripenem, gentamicin, linezolid, meropenem, piperacill-tazobactam, tobramycin, vancomycin, and voriconazole, are presented...
January 12, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28077210/spatial-temporal-and-multi-media-variations-of-polycyclic-aromatic-hydrocarbons-in-a-highly-urbanized-river-from-south-china
#10
Di Zhang, Jun-Jian Wang, Hong-Gang Ni, Hui Zeng
Comprehensive studies on polycyclic aromatic hydrocarbons (PAHs) within an urban river are urgently needed to carry out strategies to limit their contamination and dispersal. Here, we analyzed 16 PAH occurrences in water, suspended particulate matter (SPM), and sediment monthly for a year in the Maozhou River mainstream (Shenzhen, South China). Monthly rainfall positively correlated with both total PAH concentrations in filtered water (water PAHs) and SPM. Sediment PAH concentration increased from the river source to estuary...
January 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28074616/is-hemodialysis-patient-survival-dependent-upon-small-solute-clearance-kt-v-if-so-how-can-kt-v-be-adjusted-to-prevent-under-dialysis-in-vulnerable-groups
#11
Andrew Davenport
Small solute clearance achieved during a single hemodialysis session has been traditionally evaluated by urea clearance, normalized for total body water (Kt/Vurea) for more than 30 years. By consensus, the target sessional KtVurea for thrice weekly treatments has been increased from 0.9 to 1.2 over the years. Although this is supported by observational studies, there is a fundamental lack of prospective studies to support this threshold target. In clinical practice achieving sessional Kt/Vurea targets are most closely followed in the US...
January 11, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28073630/adona-and-perfluoroalkylated-substances-in-plasma-samples-of-german-blood-donors-living-in-south-germany
#12
Hermann Fromme, Mandy Wöckner, Eike Roscher, Wolfgang Völkel
Perfluorinated compounds are fully fluorinated anthropogenic substances that have been used in various products, applications, and industrial processes. Due to their persistence and toxic effects, some of them are restricted, and therefore replacement products have been developed. The aim of the study was to quantify the body burden of different perfluorinated substances in two adult populations living close to or about 80km apart from a former perfluorooctanoate (PFOA) production plant who are exposed via drinking water, and in a control population...
January 4, 2017: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/28073559/characterization-of-total-retinoid-like-activity-of-compounds-produced-by-three-common-phytoplankton-species
#13
Eliška Sychrová, Jana Priebojová, Marie Smutná, Kateřina Nováková, Jiří Kohoutek, Klára Hilscherová
Phytoplankton can produce various bioactive metabolites, which may affect other organisms in the aquatic environment. This study provides the first information on the total retinoid-like activity associated with both intracellular and extracellular metabolites produced by selected phytoplankton species that could play a role in teratogenic effects and developmental disruption in exposed organisms. The studied species included a coccoid cyanobacteria (Microcystis aeruginosa), a filamentous cyanobacteria (Aphanizomenon gracile) and a green alga (Desmodesmus quadricauda), all of which commonly occur in freshwater bodies in Europe...
December 2016: Harmful Algae
https://www.readbyqxmd.com/read/28067117/furan-in-commercial-baby-foods-from-the-spanish-market-estimation-of-daily-intake-and-risk-assessment
#14
M S Altaki, F J Santos, L Puignou, M T Galceran
The occurrence of furan in commercial baby food samples from the Spanish market was evaluated using an automated headspace solid-phase microextraction method coupled to gas chromatography-mass spectrometry (HS-SPME-GC-MS). A total of seventy six baby food samples including infant formula, baby cereals, fruit in cans and/or jars, vegetables, meat, and fish, were surveyed for furan content. The lowest concentration of this compound was found in infant formula (<0.02 - 0.33 ng mL(-1)), and cereal-based food (0...
January 9, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28066113/lactogenic-activity-of-teramnus-labialis-linn-fruit-with-special-reference-to-the-estimation-of-serum-prolactin-and-cortisol-level-in-nursing-rats
#15
Himanshu Bhusan Sahoo, Amrita Bhaiji, Dev Das Santani
AIM: The objective of the study was to investigate the lactogenic activity of methanolic extract of Teramnus labialis (L.) fruit (MTLF) on rats. SUBJECTS AND METHODS: Nursing rats (200-250 g) with their suckling pups were selected and were divided into five groups (n = 6). Group I treated as control (distil water); Group II treated as standard (domperidone), and Group III, IV, and V were orally administered with MTLF at 200, 400, and 600 mg/kg body weight, respectively and continued for l4(th) day of parturition...
November 2016: Indian Journal of Pharmacology
https://www.readbyqxmd.com/read/28065550/nitrogen-extraction-potential-of-wild-and-cultured-bivalves-harvested-from-nearshore-waters-of-cape-cod-usa
#16
Joshua Reitsma, Diane C Murphy, Abigail F Archer, Richard H York
As nitrogen entering coastal waters continues to be an issue, much attention has been generated to identify potential options that may help alleviate this stressor to estuaries, including the propagation of bivalves to remove excess nitrogen. Oysters (Crassostrea virginica) and quahogs (Mercenaria mercenaria) from numerous Cape Cod, MA, (USA) sources were analyzed for nitrogen content stored in tissues that would represent a net removal of nitrogen from a water body if harvested. Results showed local oysters average 0...
January 5, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28064036/effects-of-specimen-size-and-mix-ratio-on-the-nickel-migration-behavior-of-landfill-waste-mixed-mortar
#17
M Aminul Haque
Landfill solid waste management system poses the potential source of silent wide-spread heavy metals like nickel poisoning in the entire ecosystem of nearby environment. Nickel containing demolish solid wastes are disposed at landfill zones to a great extent from where nickel migrate into the food chain through the surface water body as well as groundwater. Consequently, nickel exposure may cause different environmental problems. From this sense, it may be an attractive proposal to recycle the waste as a sustainable product...
January 5, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28063701/physicochemical-characterization-of-atlantic-canadian-seafood-processing-plant-effluent
#18
Bryan Lee Jamieson, Graham A Gagnon, Alex Augusto Gonçalves
The purpose of this study was to conduct a preliminary assessment of the potential impacts of Atlantic Canadian seafood processing effluents on the aquatic environment through physical-chemical characterization. Shellfish and finfish effluent samples were collected and characterized by biochemical oxygen demand (BOD5), chemical oxygen demand (COD), turbidity, total suspended solids (TSS), ammonia nitrogen (NH3-N), adsorbable organic halides (AOX), soluble BOD5 and soluble COD. Effluent concentration ranges were BOD5 (179 to 276mgL(-1)), COD (458 to 1717mgL(-1)), turbidity (28...
January 4, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28063504/the-metabolite-beta-aminoisobutyric-acid-and-physical-inactivity-among-hemodialysis-patients
#19
Alessio Molfino, Maria Ida Amabile, Thomas Ammann, Alessio Farcomeni, Luana Lionetto, Maurizio Simmaco, Silvia Lai, Alessandro Laviano, Filippo Rossi Fanelli, Maria Grazia Chiappini, Maurizio Muscaritoli
OBJECTIVE: Physical inactivity is frequent in patients on hemodialysis (HD), and represents a reliable predictor of morbidity and mortality. Beta-aminoisobutyric acid (BAIBA) is a contraction-induced myokine, the plasma levels of which increase with exercise and are inversely associated with metabolic risk factors. The aim of this study was to ascertain whether physical inactivity and clinical parameters relate to plasma BAIBA levels in this patient population. METHODS: Adult patients on HD were included, and the presence of physical inactivity was assessed...
February 2017: Nutrition
https://www.readbyqxmd.com/read/28062505/cross-sectional-positive-association-of-serum-lipids-and-blood-pressure-with-serum-sodium-within-the-normal-reference-range-of-135-145-mmol-l
#20
Shouguo Gao, Xiangqin Cui, Xujing Wang, Maurice B Burg, Natalia I Dmitrieva
OBJECTIVE: Serum sodium concentration is maintained by osmoregulation within normal range of 135 to 145 mmol/L. Previous analysis of data from the ARIC study (Atherosclerosis Risk in Communities) showed association of serum sodium with the 10-year risk scores of coronary heart disease and stroke. Current study evaluated the association of within-normal-range serum sodium with cardiovascular risk factors. APPROACH AND RESULTS: Only participants who did not take cholesterol or blood pressure medications and had sodium within normal 135 to 145 mmol/L range were included (n=8615), and the cohort was stratified based on race, sex, and smoking status...
December 29, 2016: Arteriosclerosis, Thrombosis, and Vascular Biology
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