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https://www.readbyqxmd.com/read/29164459/deposition-acute-toxicity-and-bioaccumulation-of-nickel-in-some-freshwater-organisms-with-best-fit-functions-modeling
#1
Anupam Ghosh, Anilava Kaviraj, Subrata Saha
Although nickel (Ni) frequently enters into water, documents on speciation of the metal and its toxicity to freshwater organisms are scanty. Laboratory experiments, made in this study, with 1.0-5.0 mg/L of Ni revealed that Ni was not quickly removed from water. Application of cubic regression followed by classical optimization technique showed that maximum reduction time (T) of Ni in water ranged between 60 to 65 h. Ninety-six hours of LC50 value of Ni to crustacean Diaptomus forbesi, fish Cyprinus carpio, and worm Branchiura sowerbyi was respectively 5...
November 21, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29163522/the-vagus-nerve-in-the-neuro-immune-axis-implications-in-the-pathology-of-the-gastrointestinal-tract
#2
REVIEW
Bruno Bonaz, Valérie Sinniger, Sonia Pellissier
The vagus nerve (VN) is the longest nerve of the organism and a major component of the parasympathetic nervous system which constitutes the autonomic nervous system (ANS), with the sympathetic nervous system. There is classically an equilibrium between the sympathetic and parasympathetic nervous systems which is responsible for the maintenance of homeostasis. An imbalance of the ANS is observed in various pathologic conditions. The VN, a mixed nerve with 4/5 afferent and 1/5 efferent fibers, is a key component of the neuro-immune and brain-gut axes through a bidirectional communication between the brain and the gastrointestinal (GI) tract...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29162855/three-dimensional-honeycomb-patterned-fibrinogen-based-nanofibers-induce-substantial-osteogenic-response-of-mesenchymal-stem-cells
#3
Salima Nedjari, Firas Awaja, George Altankov
Stem cells therapy offers a viable alternative for treatment of bone disorders to the conventional bone grafting. However clinical therapies are still hindered by the insufficient knowledge on the conditions that maximize stem cells differentiation. Hereby, we introduce a novel 3D honeycomb architecture scaffold that strongly support osteogenic differentiation of human adipose derived mesenchymal stem cells (ADMSCs). The scaffold is based on electrospun hybrid nanofibers consisting of poly (L-lactide ε-caprolactone) and fibrinogen (PLCL/FBG)...
November 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29162155/timing-of-first-focused-antenatal-care-booking-and-associated-factors-among-pregnant-mothers-who-attend-antenatal-care-in-central-zone-tigray-ethiopia
#4
Gebreamlak Gidey, Birhane Hailu, Kidane Nigus, Tesfay Hailu, Woldegebriel G/Her, Hadgu Gerensea
OBJECTIVE: Focused antenatal care became the recommended type of antenatal care following the publication of a World Health Organization trial on antenatal care where it was discovered that the traditional antenatal care approach do not necessarily improve pregnancy out-come. This study was aimed to assess timing of first focused antenatal care booking and associated factors among pregnant mothers. Facility based cross sectional study was used in the randomly selected health facilities...
November 21, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29162073/patient-navigation-to-improve-diabetes-outpatient-care-at-a-safety-net-hospital-a-retrospective-cohort-study
#5
Michal Horný, Wiljeana Glover, Gouri Gupte, Aruna Saraswat, Varsha Vimalananda, James Rosenzweig
BACKGROUND: Recent emphasis on value based care and population management, such as Accountable Care Organizations in the United States, promote patient navigation to improve the quality of care and reduce costs. Evidence supporting the efficacy of patient navigation for chronic disease care is limited. The objective of this study was to evaluate the effect of a patient navigation program on medical and administrative outcomes among patients with diabetes in an urban, safety-net hospital clinic setting...
November 21, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/29161325/the-mechanisms-of-humic-substances-self-assembly-with-biological-molecules-the-case-study-of-the-prion-protein
#6
Gabriele Giachin, Ridvan Nepravishta, Walter Mandaliti, Sonia Melino, Alja Margon, Denis Scaini, Pierluigi Mazzei, Alessandro Piccolo, Giuseppe Legname, Maurizio Paci, Liviana Leita
Humic substances (HS) are the largest constituent of soil organic matter and are considered as a key component of the terrestrial ecosystem. HS may facilitate the transport of organic and inorganic molecules, as well as the sorption interactions with environmentally relevant proteins such as prions. Prions enter the environment through shedding from live hosts, facilitating a sustained incidence of animal prion diseases such as Chronic Wasting Disease and scrapie in cervid and ovine populations, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/29158993/antimicrobial-consumption-on-austrian-dairy-farms-an-observational-study-of-udder-disease-treatments-based-on-veterinary-medication-records
#7
Clair L Firth, Annemarie Käsbohrer, Corina Schleicher, Klemens Fuchs, Christa Egger-Danner, Martin Mayerhofer, Hermann Schobesberger, Josef Köfer, Walter Obritzhauser
Background: Antimicrobial use in livestock production is an important contemporary issue, which is of public interest worldwide. Antimicrobials are not freely available to Austrian farmers and can only be administered to livestock by veterinarians, or by farmers who are trained members of the Animal Health Service. Since 2015, veterinarians have been required by law to report antimicrobials dispensed to farmers for use in food-producing animals. The study presented here went further than the statutory framework, and collected data on antimicrobials dispensed to farmers and those administered by veterinarians...
2017: PeerJ
https://www.readbyqxmd.com/read/29158336/severe-fertility-effects-of-sheepish%C3%A2-sperm-caused-by-failure-to-enter-female-sperm-storage-organs-in-drosophila-melanogaster
#8
Masatoshi Tomaru, Takashi Ohsako, Masahide Watanabe, Naoto Juni, Hiroshi Matsubayashi, Hiromi Sato, Ayako Takahashi, Masa-Toshi Yamamoto
In Drosophila, mature sperm are transferred from males to females during copulation, stored in the sperm storage organs of females, and then utilized for fertilization. Here, we report a gene named sheepish (shps) of D. melanogaster that is essential for sperm storage in females. shps mutant males, although producing morphologically normal and motile sperm that are effectively transferred to females, produce very few offspring. Direct counts of sperm indicated that the primary defect was correlated to failure of shps sperm to migrate into the female sperm storage organs...
November 20, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/29157038/applying-u-s-national-guidelines-for-ototoxicity-monitoring-in-adult-patients-perspectives-on-patient-populations-service-gaps-barriers-and-solutions
#9
Dawn Konrad-Martin, Gayla L Poling, Angela C Garinis, Candice E Ortiz, Jennifer Hopper, Keri O'Connell Bennett, Marilyn F Dille
OBJECTIVES: To promote establishment of effective ototoxicity monitoring programs (OMPs), this report reviews the U.S. national audiology guidelines in relation to "real world" OMP application. Background is provided on the mechanisms, risks and clinical presentation of hearing loss associated with major classes of ototoxic medications. DESIGN: This is a non-systematic review using PubMed, national and international agency websites, personal communications between ototoxicity experts, and results of unpublished research...
November 20, 2017: International Journal of Audiology
https://www.readbyqxmd.com/read/29156429/kinetics-of-biogas-production-and-chemical-oxygen-demand-removal-from-compost-leachate-in-an-anaerobic-migrating-blanket-reactor
#10
Aliasghar Ebrahimi, Hassan Hashemi, Hadi Eslami, Reza Ali Fallahzadeh, Rasoul Khosravi, Roohollah Askari, Esmail Ghahramani
In this study, laboratory anaerobic migrating blanket reactor (AMBR) with four units was used to reduce and remove COD leachate of composting process; it was also used to determine the kinetic coefficients of COD removal and biogas and methane gas production in several different OLRs. The maximum concentration of organic matter entering the reactor was 100,000 mg/L and the reactor was under operation for 319 days. The results showed that the COD removal efficiency of AMBR in all concentrations of substrate entering the reactor was above 80%...
November 17, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/29155960/occupational-medicine-specialist-referral-triggers-mixed-methods-analysis-of-teleconsult-cases
#11
J L Eaton, A Mohammad, D C Mohr, D J Brustein, S R Kirkhorn
Background: Qualitative analyses can yield critical lessons for learning organizations in healthcare. Few studies have applied these techniques in the field of occupational and environmental medicine (OEM). Aims: To describe the characteristics of complex cases referred for OEM subspecialty evaluation and variation by referring provider's training. Methods: Using a mixed methods approach, we conducted a content analysis of clinical cases submitted to a national OEM teleconsult service...
November 16, 2017: Occupational Medicine
https://www.readbyqxmd.com/read/29154302/don-t-abandon-hope-all-ye-who-enter-here-the-protective-role-of-formal-mentoring-and-learning-processes-on-burnout-in-correctional-officers
#12
M L Farnese, B Barbieri, B Bellò, P T Bartone
BACKGROUND: Within a Job Demands-Resources Model framework, formal mentoring can be conceived as a job resource expressing the organization's support for new members, which may prevent their being at risk for burnout. OBJECTIVE: This research aims at understanding the protective role of formal mentoring on burnout, through the effect of increasing learning personal resources. Specifically, we hypothesized that formal mentoring enhances newcomers' learning about job and social domains related to the new work context, thus leading to lower burnout...
2017: Work: a Journal of Prevention, Assessment, and Rehabilitation
https://www.readbyqxmd.com/read/29153291/structural-perturbation-by-arsenic-triggers-the-aggregation-of-hen-egg-white-lysozyme-by-promoting-oligomers-formation
#13
Neelakant Varma, Inderbhan Singh, Mohinder Singh Dahiya, Vijay Kumar Ravi, Satish Kumar
Arsenic trioxide is one of the most common metallic pollutants entering the food chain both by human activities and nature. Its entry inside the living organism through food, air and water results into the accumulation of heavy metal in several tissues which manifest several metabolic or hormonal disorders. Till now the effect of arsenic trioxide on protein misfolding and aggregation culminating into several neurodegenerative disorders is poorly understood. In the present study, we reveal the aggregation process of Hen Egg White Lysozyme (HEWL) in presence of arsenic trioxide (As2O3) at physiological conditions...
November 16, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29152603/investigation-into-the-fungal-diversity-within-different-regions-of-the-gastrointestinal-tract-of-panaque-nigrolineatus-a-wood-eating-fish
#14
Caroline L Marden, Ryan McDonald, Harold J Schreier, Joy E M Watts
The Amazonian catfish, Panaque nigrolineatus have several physiological adaptions enabling the scraping and consumption of wood (xylivory), facilitating a detritivorous dietary strategy. Composed of lignocellulose, wood is a difficult substrate to degrade and as yet, it is unclear whether the fish obtains any direct nutritional benefits from wood ingestion and degradation. However, there are numerous systems that rely on microbial symbioses to provide energy and other nutritional benefits for host organisms via lignocellulose decomposition...
2017: AIMS Microbiology
https://www.readbyqxmd.com/read/29151444/effect-of-morphological-changes-in-feather-follicles-of-chicken-carcasses-after-defeathering-and-chilling-on-the-degree-of-skin-contamination-by-campylobacter-species
#15
Khin Maung Latt, Ayaka Urata, Taisuke Shinki, Satomi Sasaki, Takako Taniguchi, Naoaki Misawa
Campylobacter jejuni and C. coli are the leading causes of enteric infections in many developed countries. Healthy chickens are considered to act as reservoirs of campylobacters, as the organisms colonize the intestinal tract. Once infected birds enter a processing plant, contamination of chicken carcasses with campylobacters occurs over the entire skin during defeathering and evisceration due to leakage of crop and/or intestinal contents. Although the role of feather follicles in the contamination of chicken carcasses by campylobacters during processing is still debatable, it has been considered that the microorganisms would be entrapped and retained in the follicles due to the morphological changes resulting from defeathering and chilling...
November 20, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/29151351/immucillins-in-infectious-diseases
#16
Gary B Evans, Peter C Tyler, Vern L Schramm
Transition state theory proposes that stable chemical mimics of enzymatic transition states will be powerful inhibitors of their cognate enzymes. The Immucillins are chemically stable analogues that mimic the ribocation and leaving-group features of N-ribosyltransferase transition states. Infectious disease agents often rely on ribosyltransferase chemistry in pathways involving precursor synthesis for nucleic acids, salvage of nucleic acid precursors from the host or synthetic pathways with nucleoside intermediates...
November 19, 2017: ACS Infectious Diseases
https://www.readbyqxmd.com/read/29151079/mechanisms-of-vasorelaxation-induced-by-total-flavonoids-of-euphorbia-humifusa-in-rat-aorta
#17
T T Wang, Z Q Zhou, S Wang, X W Ji, B Wu, L Y Sun, J F Wen, D G Kang, H S Lee, K W Cho, S N Jin
Euphorbia humifusa Willd. (EH), rich in flavonoids, has long been used for the treatment of bacillary dysentery and enteritis in China, and is known to have antioxidant, hypotensive and hypolipidemic properties. However, the vasorelaxant effect of total flavonoids of EH (TFEH) and action mechanisms are not clearly defined yet. The aim of the present study was to investigate the effects of TFEH on the vascular tension and its underlying mechanisms. Experiments were performed in rat thoracic aorta using the organ bath system...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29150427/delayed-encounter-of-parental-genomes-can-lead-to-aneuploidy-in-saccharomyces%C3%A2-cerevisiae
#18
Alan Michael Tartakoff, David Dulce, Elizabeth Landis
We have investigated an extreme deviation from the norm of genome unification that occurs during mating in the yeast, Saccharomyces cerevisiae This deviation is encountered when yeast that carry a mutation of the spindle pole body protein, Kar1, are mated with wildtype cells. In this case, nuclear fusion is delayed and the genotypes of a fraction of zygotic progeny suggest that chromosomes have "transferred" between the parental nuclei in zygotes. This classic yet bizarre occurrence is routinely used to generate aneuploid (disomic) yeast...
November 17, 2017: Genetics
https://www.readbyqxmd.com/read/29149925/gastrointestinal-and-hepatic-disease-in-systemic-lupus-erythematosus
#19
REVIEW
Brian N Brewer, Diane L Kamen
Gastrointestinal (GI) symptoms are common among patients with systemic lupus erythematosus (SLE), although only rarely are they caused by active organ system involvement from SLE itself. Rapid diagnosis and appropriate treatment of lupus enteritis and other GI manifestations of SLE are critical, because of the potential for organ and life-threatening complications. The 3 main variants of lupus enteritis are lupus mesenteric vasculitis, intestinal pseudo-obstruction, and protein-losing enteropathy. These GI manifestations and others in patients with SLE are reviewed here...
February 2018: Rheumatic Diseases Clinics of North America
https://www.readbyqxmd.com/read/29148218/new-solutions-to-reduce-wrong-route-medication-errors
#20
REVIEW
Ronald S Litman, Victoria I Smith, Phoebe Mainland
Wrong route medication errors due to tubing misconnections are potentially life-threatening complications that have been made possible by the universal use of the Luer connector. The new International Organization of Standardization standards for small bore connectors, ISO 80369 series, have been developed to reduce the risk of these types of erroneous connections. Tubing connectors for different routes of clinical application will contain differently designed connectors that are physically incompatible. However, design and manufacturing standards have progressed slowly, and clinical roll-outs have been delayed, despite the implementation of California laws to promote their use...
November 17, 2017: Paediatric Anaesthesia
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