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https://www.readbyqxmd.com/read/29350221/assessing-the-social-and-environmental-costs-of-institution-nitrogen-footprints
#1
Jana E Compton, Allison M Leach, Elizabeth A Castner, James N Galloway
This article estimates the damage costs associated with the institutional nitrogen (N) footprint and explores how this information could be used to create more sustainable institutions. Potential damages associated with the release of nitrogen oxides (NOx), ammonia (NH3), and nitrous oxide (N2O) to air and release of nitrogen to water were estimated using existing values and a cost per unit of nitrogen approach. These damage cost values were then applied to two universities. Annual potential damage costs to human health, agriculture, and natural ecosystems associated with the N footprint of institutions were $11...
April 1, 2017: Sustainability (New Rochelle)
https://www.readbyqxmd.com/read/29350052/protective-mechanisms-of-6-gingerol-in-dextran-sulfate-sodium-induced-chronic-ulcerative-colitis-in-mice
#2
B O Ajayi, I A Adedara, E O Farombi
Ulcerative colitis (UC) is a relapsing and remitting inflammatory disease of the colon, with an increasing incidence worldwide. 6-Gingerol (6G) is a bioactive constituent of Zingiber officinale, which has been reported to possess various biological activities. This study was designed to evaluate the role of 6G in chronic UC. Chronic UC was induced in mice by three cycles of 2.5% dextran sulfate sodium (DSS) in drinking water. Each cycle consisted of 7 days of 2.5% DSS followed by 14 days of normal drinking water...
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29348134/cerebral-mitochondrial-microangiopathy-leads-to-leukoencephalopathy-in-mitochondrial-neurogastrointestinal-encephalopathy
#3
L L Gramegna, A Pisano, C Testa, D N Manners, R D'Angelo, E Boschetti, F Giancola, L Pironi, L Caporali, M Capristo, M L Valentino, G Plazzi, C Casali, M T Dotti, G Cenacchi, M Hirano, C Giordano, P Parchi, R Rinaldi, R De Giorgio, R Lodi, V Carelli, C Tonon
BACKGROUND AND PURPOSE: Mitochondrial neurogastrointestinal encephalopathy is a rare disorder due to recessive mutations in the thymidine phosphorylase gene, encoding thymidine phosphorylase protein required for mitochondrial DNA replication. Clinical manifestations include gastrointestinal dysmotility and diffuse asymptomatic leukoencephalopathy. This study aimed to elucidate the mechanisms underlying brain leukoencephalopathy in patients with mitochondrial neurogastrointestinal encephalopathy by correlating multimodal neuroradiologic features to postmortem pathology...
January 18, 2018: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29344422/the-effects-of-physical-training-are-varied-and-occur-in-an-exercise-type-dependent-manner-in-elderly-men
#4
Mari L Sbardelotto, Giulia S Pedroso, Fernanda T Pereira, Helen R Soratto, Stella Ms Brescianini, Pauline S Effting, Anand Thirupathi, Renata T Nesi, Paulo Cl Silveira, Ricardo A Pinho
Regular exercise can decrease the deleterious effects of aging and limit the development and progression of chronic disease in elderly people, depending on the type, intensity, frequency, and duration of exercise. This study aimed to investigate the potential protective effects of different physical training programs on oxidative stress parameters and inflammatory and neurotrophic mediators in the serum of elderly men. Healthy male volunteers [60 to 80 years; n=55] were divided into four groups: control [Ctr, n=14], aerobic training on dry land [ATdl, n=12]; and combined training on dry land [CTdl, n=12] or in water [CTw, n=17]...
December 2017: Aging and Disease
https://www.readbyqxmd.com/read/29342127/enhancement-in-corneal-permeability-of-dissolved-carteolol-by-its-combination-with-magnesium-hydroxide-nanoparticles
#5
Noriaki Nagai, Sakie Yamaoka, Yuya Fukuoka, Miyu Ishii, Hiroko Otake, Kazutaka Kanai, Norio Okamoto, Yoshikazu Shimomura
We prepared magnesium hydroxide (MH) nanoparticles, and investigated their effect when combined with dissolved carteolol on the bioavailability and intraocular pressure (IOP)-reducing effect of carteolol. The carteolol was solved in saline containing additives (0.5% methylcellulose, 0.001% benzalkonium chloride, 0.5% mannitol; CRT-solution). MH nanoparticles were prepared by a bead mill method with additives. Then carteolol/MH microparticle and carteolol/MH nanoparticle fixed combinations (mCMFC and nCMFC) were prepared by mixing the CRT-solution and MH particles...
January 17, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29341916/effects-of-surfactant-based-permeation-enhancers-on-mannitol-permeability-histology-and-electrogenic-ion-transport-responses-in-excised-rat-colonic-mucosae
#6
Sam Maher, Joanne Heade, Fiona McCartney, Seona Waters, Sinéad B Bleiel, David J Brayden
Surfactant-based intestinal permeation enhancers (PEs) are constituents of several oral macromolecule formulations in clinical trials. This study examined the interaction of a test panel of surfactant-based PEs with isolated rat colonic mucosae mounted in Ussing chambers in an attempt to determine if increases in transepithelial permeability can be separated from induction of mucosal perturbation. The aim was to assess the effects of PEs on (i) apparent permeability coefficient (Papp) of [14C]-mannitol on (ii) histology score and (iii) short-circuit current (ΔIsc) responses to a cholinomimetic (carbachol, CCh)...
January 13, 2018: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29341194/generation-of-red-drum-sciaenops-ocellatus-hematology-reference-intervals-with-a-focus-on-identified-outliers
#7
Kendal E Harr, Kristina Deak, Steven A Murawski, Drury R Reavill, Ryan A Takeshita
BACKGROUND: The Deepwater Horizon (DWH) oil spill in 2010 released millions of barrels of crude oil into the northern Gulf of Mexico, exposing numerous species of animals to the toxic components of oil. A comprehensive assessment of morbidity and mortality caused by DWH oil exposure was undertaken by the DWH Natural Resource Damage Trustees to characterize ecosystem damages. OBJECTIVES: This study aimed to characterize normal hematologic RIs in red drum fish with blood cell descriptions, and to demonstrate the importance of identifying and removing outliers when generating RI...
January 17, 2018: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/29341175/investigation-of-the-axial-gap-clearance-in-a-hydrodynamic-passive-magnetically-levitated-rotary-blood-pump-using-x-ray-radiography
#8
Bente Thamsen, Mathieu Plamondon, Marcus Granegger, Marianne Schmid Daners, Rolf Kaufmann, Antonia Neels, Mirko Meboldt
The HeartWare HVAD is a radial rotary blood pump with a combination of passive magnetic and hydrodynamic bearings to levitate the impeller. The axial gap size between impeller and housing in this bearing and its sensitivity to speed, flow, and pressure difference is difficult to assess. Shear stresses are exceptionally high in this tiny gap making it important for blood damage and related adverse events. Therefore, the aim of this study was to measure the axial gap clearance in the HVAD at different operating conditions employing radiography...
January 17, 2018: Artificial Organs
https://www.readbyqxmd.com/read/29341005/diffusion-tensor-imaging-dti
#9
Silvia Lope-Piedrafita
Diffusion Tensor Imaging is an MRI technique that allows in vivo noninvasive measurement of the translational motion of water, providing information about its anisotropy (or lack of it) in different tissues. DTI has been commonly used to quantitatively measure the integrity of tissues which may be compromised by neurological disease, such as white matter tracks of the brain, which normally impart significant anisotropy to water motion in healthy brains. However, this anisotropic effect is diminished when axonal or neuronal damage is present...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29339825/corallivory-and-the-microbial-debacle-in-two-branching-scleractinians
#10
Yvan Bettarel, Sébastien Halary, Jean-Christophe Auguet, Thanh Chi Mai, Ngoc Van Bui, Thierry Bouvier, Patrice Got, Corinne Bouvier, Sonia Monteil-Bouchard, Desnues Christelle
The grazing activity by specific marine organisms represents a growing threat to the survival of many scleractinian species. For example, the recent proliferation of the corallivorous gastropod Drupella now constitutes a critical case in all South-East Asian waters. If the damaging effects caused by this marine snail on coral polyps are relatively well known, the indirect incidence of predation on coral microbial associates is still obscure and might also potentially impair coral health. In this study, we compared the main ecological traits of coral-associated bacterial and viral communities living in the mucus layer of Acropora formosa and Acropora millepora, of healthy and predated individuals (i...
January 16, 2018: ISME Journal
https://www.readbyqxmd.com/read/29338061/feasibility-of-cell-based-therapy-combined-with-descemetorhexis-for-treating-fuchs-endothelial-corneal-dystrophy-in-rabbit-model
#11
Naoki Okumura, Daiki Matsumoto, Yuya Fukui, Masataka Teramoto, Hirofumi Imai, Tetta Kurosawa, Tomoki Shimada, Friedrich Kruse, Ursula Schlötzer-Schrehardt, Shigeru Kinoshita, Noriko Koizumi
Corneal transparency is maintained by the corneal endothelium through its pump and barrier function. Severe corneal endothelial damage results in dysregulation of water flow and eventually causes corneal haziness and deterioration of visual function. In 2013, we initiated clinical research of cell-based therapy for treating corneal decompensation. In that study, we removed an 8-mm diameter section of damaged corneal endothelium without removing Descemet's membrane (the basement membrane of the corneal endothelium) and then injected cultured human corneal endothelial cells (CECs) into the anterior chamber...
2018: PloS One
https://www.readbyqxmd.com/read/29337289/antioxidant-activity-of-hydrated-carboxylated-nanodiamonds-and-its-influence-on-water-%C3%AE-radiolysis
#12
Karla Santacruz-Gomez, Andrei Sarabia-Sainz, Monica Acosta-Elias, Manuel Sarabia-Sainz, Woraphong Janetanakit, Nathan Khosla, Rodrigo Melendrez, Martin Pedroza-Montero, Ratnesh Lal
Water radiolysis involves the chemical decomposition of the water molecule into free radicals after the exposure with ionizing radiation. These free radicals have deleterious effects on normal cell physiology. Carboxylated nanodiamonds (cNDs) appear to modulate the deleterious effects of γ-irradiation on red blood cells (RBCs) pathophysiology. In the present work, the antioxidant activity of hydrated-cNDs (h-cNDs) on limiting the oxidative damage (water radiolysis effect) by γ-irradiation was confirmed. Our results show that h-cNDs has remarkable free radicals scavenging ability and preserves the catalase enzymatic activity after γ-irradiation...
January 16, 2018: Nanotechnology
https://www.readbyqxmd.com/read/29336488/neonatal-ethanol-exposure-causes-behavioral-deficits-in-young-mice
#13
Wenhua Xu, Andrew B Hawkey, Hui Li, Lu Dai, Howard H Brim, Jacqueline A Frank, Jia Luo, Susan Barron, Gang Chen
BACKGROUND: Fetal ethanol (ETOH) exposure can damage the developing central nervous system and lead to cognitive and behavioral deficits, known as fetal alcohol spectrum disorders (FASD). ETOH exposure to mouse pups during early neonatal development was used as a model of ETOH exposure that overlaps the human third trimester "brain growth spurt" - a model that has been widely used to study FASD in rats. METHODS: C57BL/6 male and female mice were exposed to ETOH (4 g/kg/day) on postnatal days (PD) 4-10 by oral intubation...
January 16, 2018: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/29335169/seasonal-variations-in-fine-particle-composition-from-beijing-prompt-oxidative-stress-response-in-mouse-lung-and-liver
#14
Michal Pardo, Fanfan Xu, Xinghua Qiu, Tong Zhu, Yinon Rudich
Exposure to air pollution can induce oxidative stress, inflammation and adverse health effects. To understand how seasonal and chemical variations drive health impacts, we investigated indications for oxidative stress and inflammation in mice exposed to water and organic extracts from urban fine particles/PM2.5 (particles with aerodynamic diameter ≤ 2.5 μm) collected in Beijing, China. Higher levels of pollution components were detected in heating season (HS, winter and part of spring) PM2.5 than in the non-heating season (NHS, summer and part of spring and autumn) PM2...
January 12, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29334650/environmentally-relevant-concentrations-of-glibenclamide-induce-oxidative-stress-in-common-carp-cyprinus-carpio
#15
Ericka María Guadalupe Martínez-Viveros, Hariz Islas-Flores, Octavio Dublán-García, Marcela Galar-Martínez, Nely SanJuan-Reyes, Sandra García-Medina, María Dolores Hernández-Navarro, Leobardo Manuel Gómez-Oliván
The hypoglycemic pharmaceutical glibenclamide (GLB) is widely used around the world. This medication is released into the environment by municipal, hospital and industrial wastewater discharges. Although there are reports of its environmental occurrence in the scientific literature, toxicity studies on aquatic species of commercial interest such as the common carp Cyprinus carpio are scarce. The present study aimed to evaluate the oxidative stress induced on C. carpio by environmentally relevant concentrations of GLB...
January 12, 2018: Chemosphere
https://www.readbyqxmd.com/read/29333051/therapeutic-significance-of-loligo-vulgaris-lamarck-1798-ink-extract-a-biomedical-approach
#16
Sri Kumaran Nadarajah, Radha Vijayaraj, Jayaprakashvel Mani
Background: The squid ink extract is well known for its biomedical properties. Objective: In this study, squid Loligo vulgaris was collected from Tuticorin costal water, Bay of Bengal, India. Materials and Methods: Proximate composition of the crude squid ink was studied and found to have protein as the major component over lipid and carbohydrates. Further, bioactive fractions of squid ink were extracted with ethanol, and therapeutic applications such as hemolytic, antioxidant, antimicrobial, and in vitro anti-inflammatory properties were analyzed using standard methods...
December 2017: Pharmacognosy Research
https://www.readbyqxmd.com/read/29332858/the-effect-of-thiamine-and-its-metabolites-on-peripheral-neuropathic-pain-induced-by-cisplatin-in-rats
#17
Didem Onk, Renad Mammadov, Bahadir Suleyman, Ferda Keskin Cimen, Murat Cankaya, Vahdet Gul, Durdu Altuner, Onur Senol, Yucel Kadioglu, Ismail Malkoc, Halis Suleyman
Thiamine pyrophosphate (TPP) is the active metabolite of thiamine. This study aimed to investigate the effects of thiamine and TPP on cisplatin-induced peripheral neuropathic pain (PNP). Male albino Wistar type Rattus norvegicus were divided into six groups (n=6) that received 2 mg/kg cisplatin (CIS), 25 mg/kg thiamine (TM), 2 mg/kg cisplatin+25 mg/kg thiamine (CTM), 25 mg/kg TPP (TPP), 2 mg/kg cisplatin+25 mg/kg TPP (CTPP), or distilled water (healthy group; HG) for 8 days intraperitoneally. Analgesic effect was measured with a Basile Algesimeter...
January 12, 2018: Experimental Animals
https://www.readbyqxmd.com/read/29332274/callitriche-cophocarpa-water-starwort-proteome-under-chromate-stress-evidence-for-induction-of-a-quinone-reductase
#18
Paweł Kaszycki, Aleksandra Dubicka-Lisowska, Joanna Augustynowicz, Barbara Piwowarczyk, Wojciech Wesołowski
Chromate-induced physiological stress in a water-submerged macrophyte Callitriche cophocarpa Sendtn. (water starwort) was tested at the proteomic level. The oxidative stress status of the plant treated with 1 mM Cr(VI) for 3 days revealed stimulation of peroxidases whereas catalase and superoxide dismutase activities were similar to the control levels. Employing two-dimensional electrophoresis, comparative proteomics enabled to detect five differentiating proteins subjected to identification with mass spectrometry followed by an NCBI database search...
January 13, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29331918/dna-damage-in-marine-rock-oyster-saccostrea-cucullata-exposed-to-environmentally-available-pahs-and-heavy-metals-along-the-arabian-sea-coast
#19
Subhodeep Sarker, Deepti Vashistha, Munmun Saha Sarker, A Sarkar
Molecular biomarkers are used world wide for quick assessment of the immediate effect of environmental pollution on marine ecosystems. Recently, we evaluated oxidative stress responses of marine rock oyster, Saccostrea cucullata impacted due to polycyclic aromatic hydrocarbons (PAHs) accumulated in their tissues at a few sampling sites along the coast of Goa around the region of the Arabian sea coast, India (Sarkar et al., 2017). Using a combination of partial alkaline unwinding and comet assays, we now report a comprehensive study on the impairment of DNA integrity (DI) in S...
January 11, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29331810/behavior-of-cylindrospermopsis-raciborskii-during-coagulation-and-sludge-storage-higher-potential-risk-of-toxin-release-than-microcystis-aeruginosa
#20
Hongmin Li, Haiyan Pei, Hangzhou Xu, Yan Jin, Jiongming Sun
Owing to the global warming and its strong adaptability, Cylindrospermopsis raciborskii has spread world-wide. However, as one of toxic cyanobacteria in many drinking water sources, it has not been drawn proper consideration in drinking water treatment plants so far. The investigation aimed at unveiling the fate of C. raciborskii during polyaluminum ferric chloride (PAFC) coagulation and sludge storage, revealing its differences from Microcystis aeruginosa. Results showed that C. raciborskii cells were effectively removed intactly under optimum coagulation conditions, but PAFC at higher dosages (>10 mg/L) triggered additional cylindrospermopsins release...
January 5, 2018: Journal of Hazardous Materials
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