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https://www.readbyqxmd.com/read/29656566/absence-of-human-skin-irritation-and-allergenic-potential-after-repeated-patch-applications-of-a-lamellar-moisturizer
#1
Stephanie J Nisbet
BACKGROUND: New cosmetic products should undergo clinical evaluation for skin sensitization potential. OBJECTIVES: To assess the irritation and sensitization potential of a moisturizer containing lamellar structured lipids after repeated patch application in humans, using human repeated insult patch test methodology. METHODS: This 6-week, single-center, open-label study compared a lamellar moisturizer with negative saline control in human subjects aged 18-70 years and skin phototype (Fitzpatrick) classification I-IV...
April 15, 2018: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/29656513/acidic-and-alkaline-chemicals-influence-on-a-tricalcium-silicate-based-dental-biomaterial
#2
Prasanna Neelakantan, Todd Berger, Carolyn Primus, Hagay Shemesh, Paul R Wesselink
Bioactive hydraulic tricalcium silicate materials are commonly used in several dental procedures. Mineral Trioxide Aggregate (MTA) is one such material, which is used in a variety of clinical applications, the most recent of which is root canal sealing material, during which, the MTA potentially comes in contact with remnants of the chemical agents used for disinfecting root canals. The effects of commonly used root canal irrigating solutions on MTA have not been investigated in depth, thus far. The aim of this study was to determine the effect of five common chemical agents used in root canal preparation (sodium hypochlorite/NaOCl, ethylene diaminetetraacetic acid/EDTA, mixture of sodium hypochlorite and etidronic acid/NaOCl + EA, mixture of EDTA and Chlorhexidine/QMix, or saline) on a commercial tricalcium silicate (MTA Plus)...
April 15, 2018: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/29656470/mechanical-and-in-vitro-degradation-behavior-of-magnesium-bioactive-glass-composites-prepared-by-sps-for-biomedical-applications
#3
Sourav Dutta, K Bavya Devi, Sanjay Gupta, Biswanath Kundu, Vamsi Krishna Balla, Mangal Roy
In order to make magnesium (Mg) a successful candidate for fracture fixation devices, it is imperative to control the corrosion rate and enhance its elastic modulus. In the present work, we have prepared bioactive glass (BG) reinforced magnesium composite using spark plasma sintering (SPS). Simultaneous application of heat and pressure during SPS decreased the softening point of BG (600°C), allowing it to coat the Mg particles partially. As a result, BG was found along the Mg particle boundaries, which was confirmed by elemental mapping...
April 15, 2018: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/29656355/nacl-impact-on-kosteletzkya-pentacarpos-seedlings-simultaneously-exposed-to-cadmium-and-zinc-toxicities
#4
Ming-Xi Zhou, Hélène Dailly, Marie-Eve Renard, Rui-Ming Han, Stanley Lutts
Data regarding NaCl impact on halophyte plant species exposed to a polymetallic contamination remain scarce. Seedlings of the salt marsh species Kosteletzkya pentacarpos were simultaneously exposed to cadmium (10 μM) and zinc (100 μM) in the absence or presence of 50 mM NaCl. Heavy metal exposure reduced plant growth and increased Cd and Zn concentrations in all organs. Cd and Zn accumulation reduced net photosynthesis in relation to stomatal closure, decreased in chlorophyll concentration and alteration in chlorophyll fluorescence-related parameters...
April 14, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29656312/evaluation-of-taurine-neuroprotection-in-aged-rats-with-traumatic-brain-injury
#5
Raeesa Gupte, Sarah Christian, Paul Keselman, Joshua Habiger, William M Brooks, Janna L Harris
Despite higher rates of hospitalization and mortality following traumatic brain injury (TBI) in patients over 65 years old, older patients remain underrepresented in drug development studies. Worse outcomes in older individuals compared to younger adults could be attributed to exacerbated injury mechanisms including oxidative stress, inflammation, blood-brain barrier disruption, and bioenergetic dysfunction. Accordingly, pleiotropic treatments are attractive candidates for neuroprotection. Taurine, an endogenous amino acid with antioxidant, anti-inflammatory, anti-apoptotic, osmolytic, and neuromodulator effects, is neuroprotective in adult rats with TBI...
April 14, 2018: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/29656252/assessing-the-effect-of-industrial-wastewater-on-soil-properties-and-physiological-and-nutritional-responses-of-robinia-pseudoacacia-cercis-siliquastrum-and-caesalpinia-gilliesii-seedlings
#6
Maryam Saffari Aman, Mohammad Jafari, Majid Karimpour Reihan, Babak Motesharezadeh, Salman Zare
The main aim of this study is to investigate the physical and chemical properties, including soil salinity, acidity, concentrations of macro-nutrients (phosphorus, potassium, and Calcium-Magnesium) and sodium adsorption ratio to the soil, physiological and nutritional traits of three plant species including Caesalpinia gilliesii, Robinia pseudoacacia, and Cercis siliquastrum. First, some sample were taken from the agricultural soils irrigated with wastewater. The results of initial soil test revealed that the irrigation with wastewater significantly increased sodium adsorption ratio (SAR), electrical conductivity (ECe), cation exchange capacity (CEC) of the soil (p < 0...
April 12, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29655978/sitagliptin-prevents-isoproterenol-induced-myocardial-infarction-in-rats-by-modulating-nitric-oxide-synthase-enzymes
#7
Mohamed Abdellah Ibrahim, Ayman Geddawy, Soha Abdel-Wahab
Ischemic heart disease is a common cause of mortality worldwide. Sitagliptin is a new anti-diabetic drug acting as dipeptidyl peptidase-4 (DPP-4) inhibitor. The study investigated the ability of sitagliptin to prevent pathological changes of isoproterenol- (ISO-) induced myocardial injury in rats. The role of nitric oxide (NO) was also reported. Rats were assorted into six groups (n = 7) and treated for 12 days. Group 1: normal control, received normal saline. Group 2, sitagliptin control, received sitagliptin (10mg/kg, orally)...
April 12, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29655584/nanoemulsion-adjuvant-driven-redirection-of-t-h-2-immunity-inhibits-allergic-reactions-in-murine-models-of-peanut-allergy
#8
Jessica J O'Konek, Jeffrey J Landers, Katarzyna W Janczak, Rishi R Goel, Anna M Mondrusov, Pamela T Wong, James R Baker
BACKGROUND: Immunotherapy for food allergies involves progressive increased exposures to food that result in desensitization to food allergens in some subjects but not tolerance to the food. Therefore new approaches to suppress allergic immunity to food are necessary. Previously, we demonstrated that intranasal immunization with a nanoemulsion (NE) adjuvant induces robust mucosal antibody and TH 17-polarized immunity, as well as systemic TH 1-biased cellular immunity with suppression of pre-existing TH 2-biased immunity...
April 11, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29655555/effects-of-treatment-of-preweaning-dairy-calves-with-recombinant-bovine-somatotropin-on-immune-responses-and-somatotropic-axis
#9
A L Belli, R B Reis, A Veronese, R Moreira, K Flanagan, J Driver, C D Nelson, J A Clapper, M A Ballou, K C Jeong, R C Chebel
Weaning may be associated with negative energy balance and body weight loss when calves are still immunologically immature, predisposing them to infectious diseases. The aim of the present experiment was to investigate the effects of treatment of preweaning dairy calves with recombinant bovine somatotropin (rbST) on the somatotropic axis, selected immune parameters, and hematology of calves around weaning. Thirty-six Holstein female calves were randomly assigned to receive 1.5 to 1.8 mg of rbST (Posilac, Elanco Animal Health, Greenfield, IN) per kilogram of body weight or to receive injections of saline (saline solution 0...
April 11, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29655532/evaluation-of-different-therapeutic-carnoy-s-formulations-on-hard-human-tissues-a-raman-microspectroscopy-microhardness-and-scanning-electron-microscopy-study
#10
Francisco Samuel Rodrigues Carvalho, Victor Pinheiro Feitosa, Paulo Goberlânio de Barros Silva, Eduardo Costa Studart Soares, Thyciana Rodrigues Ribeiro, Cristiane Sá Roriz Fonteles, Fábio Wildson Gurgel Costa
PURPOSE: To evaluate different therapeutic Carnoy's solution formulations on hard human tissues. MATERIALS AND METHODS: An in vitro study was performed with human teeth (n = 36) and bone fragments (n = 18), randomly divided into two experimental groups (Group I = Carnoy solution with chloroform; Group II = Carnoy solution without chloroform) and a control group (saline solution). The groups were subdivided into pre-conditioning, post-conditioning, and post-conditioning with saline washing...
February 21, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29655380/cryoprotectant-agents-and-cooling-effect-on-embryos-of-macrobrachium-amazonicum
#11
Caroline Costa Lucas, Luana Rolim Melo, Míriam Luzia Nogueira Martins de Sousa, Glayciane Bezerra de Morais, Moisés Fernandes Martins, Francisco Antônio Félix Xavier, Janaina Serra Azul Monteiro Evangelista, Célia Maria de Souza Sampaio
SummaryThere are few reports of cryopreservation and injuries in Macrobrachium amazonicum embryos. Thus, the aim of this study was to analyze the effects of cryoprotectants agents and cooling on stage VIII of this species. Fertilized eggs from ovigerous females were removed from the incubation chamber, then placed in 10 ml Falcon tubes with a cryoprotectant solution and saline-free calcium solution. Thus, the embryos underwent a cooling curve of 1°C per min until reaching 5°C, and then were stored for 2 h...
April 15, 2018: Zygote: the Biology of Gametes and Early Embryos
https://www.readbyqxmd.com/read/29653436/a-chloroplast-targeted-cabbage-dead-box-rna-helicase-brrh22-confers-abiotic-stress-tolerance-to-transgenic-arabidopsis-plants-by-affecting-translation-of-chloroplast-transcripts
#12
Ghazala Nawaz, Kwanuk Lee, Su Jung Park, Yeon-Ok Kim, Hunseung Kang
Although the roles of many DEAD-box RNA helicases (RHs) have been determined in the nucleus as well as in cytoplasm during stress responses, the importance of chloroplast-targeted DEAD-box RHs in stress response remains largely unknown. In this study, we determined the function of BrRH22, a chloroplast-targeted DEAD-box RH in cabbage (Brassica rapa), in abiotic stress responses. The expression of BrRH22 was markedly increased by drought, heat, salt, or cold stress and by ABA treatment, but was largely decreased by UV stress...
April 7, 2018: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/29653383/characterizing-fretting-damage-in-different-test-media-for-cardiovascular-device-durability-testing
#13
J D Weaver, L Ramirez, S Sivan, M Di Prima
In vitro durability tests of cardiovascular devices are often used to evaluate the potential for fretting damage during clinical use. Evaluation of fretting damage is important because severe fretting can concentrate stress and lead to the loss of structural integrity. Most international standards call for the use of phosphate buffered saline (PBS) for such tests although there has been little evidence to date that the use of PBS is appropriate in terms of predicting the amount of fretting damage that would occur in vivo...
April 4, 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29653324/phytoremediation-of-mine-tailings-with-atriplex-halimus-and-organic-inorganic-amendments-a-five-year-field-case-study
#14
J A Acosta, A Abbaspour, G R Martínez, S Martínez-Martínez, R Zornoza, M Gabarrón, A Faz
Mine tailings have adverse chemical and physical conditions, including high concentrations of metals and salts, low organic matter content, and unbalanced rates of nutrients which limit the development of vegetation. A large scale field experiment was conducted to reclaim a tailing pond by triggering the growth of native species by spontaneous colonization by tilling (TL) the tailing pond surface and using marble waste (CaCO3 ; MW), pig slurry (PS) and their combination (MW + PS) as soil amendments. Soil physicochemical properties and water and DTPA extractable metal concentrations of bulk and rhizosphere soils were analyzed after five year from the application of the treatments...
April 5, 2018: Chemosphere
https://www.readbyqxmd.com/read/29653173/superabsorbent-hydrogel-based-on-sulfonated-starch-for-improving-water-and-saline-absorbency
#15
Gamal Zain, Ahmed A Nada, Manal A El-Sheikh, Fawzy A Attaby, Ahmed I Waly
The agriculture sectors in many developing countries have been suffering from water shortage and decreasing crop yields. Thus, an increasing interest has been emerged to develop much-needed solutions for a more sustainable management of water resources. Agricultural hydrogel that absorbs many times of its weight in water has been used to distribute into dry regions in order to improve the soil's ability to absorb and retain water. Here, amphoteric superabsorbent hydrogel is prepared by indirect method based on anionic starch bearing sulfonate groups...
April 10, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29653137/hyperactivity-and-memory-learning-deficits-evoked-by-developmental-exposure-to-nicotine-and-or-ethanol-are-mitigated-by-camp-and-cgmp-signaling-cascades-activation
#16
Yael Abreu-Villaça, Anna C Carvalho-Graça, Gabriela Skinner, Bruna M Lotufo, Vitor H S Duarte-Pinheiro, Anderson Ribeiro-Carvalho, Alex C Manhães, Claudio C Filgueiras
Pregnant smoking women are frequently episodic drinkers. Here, we investigated whether ethanol exposure restricted to the brain growth spurt period when combined with chronic developmental exposure to nicotine aggravates memory/learning deficits and hyperactivity, and associated cAMP and cGMP signaling disruption. To further investigate the role of these signaling cascades, we verified whether vinpocetine (a phosphodiesterase inhibitor) ameliorates the neurochemical and behavioral outcomes. Swiss mice had free access to nicotine (NIC, 50 μg/ml) or water to drink during gestation and until the 8th postnatal day (PN8)...
April 10, 2018: Neurotoxicology
https://www.readbyqxmd.com/read/29652907/transcriptomic-analysis-reveals-the-differentially-expressed-genes-and-pathways-involved-in-drought-tolerance-in-pearl-millet-pennisetum-glaucum-l-r-br
#17
Ambika Dudhate, Harshraj Shinde, Daisuke Tsugama, Shenkui Liu, Tetsuo Takano
Pearl millet is a cereal crop known for its high tolerance to drought, heat and salinity stresses as well as for its nutritional quality. The molecular mechanism of drought tolerance in pearl millet is unknown. Here we attempted to unravel the molecular basis of drought tolerance in two pearl millet inbred lines, ICMB 843 and ICMB 863 using RNA sequencing. Under greenhouse condition, ICMB 843 was found to be more tolerant to drought than ICMB 863. We sequenced the root transcriptome from both lines under control and drought conditions using an Illumina Hi-Seq platform, generating 139...
2018: PloS One
https://www.readbyqxmd.com/read/29652884/neochloris-oleoabundans-is-worth-its-salt-transcriptomic-analysis-under-salt-and-nitrogen-stress
#18
Lenny de Jaeger, Benoit M Carreres, Jan Springer, Peter J Schaap, Gerrit Eggink, Vitor A P Martins Dos Santos, Rene H Wijffels, Dirk E Martens
Neochloris oleoabundans is an oleaginous microalgal species that can be cultivated in fresh water as well as salt water. Using salt water gives the opportunity to reduce production costs and the fresh water footprint for large scale cultivation. Production of triacylglycerols (TAG) usually includes a biomass growth phase in nitrogen-replete conditions followed by a TAG accumulation phase under nitrogen-deplete conditions. This is the first report that provides insight in the saline resistance mechanism of a fresh water oleaginous microalgae...
2018: PloS One
https://www.readbyqxmd.com/read/29652278/effects-of-glargine-insulin-on-glycemic-control-in-patients-with-diabetes-mellitus-type-ii-undergoing-off-pump-coronary-artery-bypass-graft
#19
Hemang Gandhi, Alpesh Sarvaia, Amber Malhotra, Himanshu Acharya, Komal Shah, Jeevraj Rajavat
Background: The prevalence of diabetes mellitus in patients requiring coronary artery bypass grafting (CABG) is noticeably high (20%-30%). These patients have inferior perioperative outcome, reduced long-term survival, and high risk of recurrent episodes of angina. To improve perioperative outcome surgical unit defined satisfactory glycemic control is desired during this period. Hence, the aim of our study is to compare the efficacy of glargine insulin combination with continuous human insulin infusion for perioperative glycemic control in patients with diabetes undergoing CABG...
April 2018: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/29652275/dexmedetomidine-versus-ketofol-sedation-for-outpatient-diagnostic-transesophageal-echocardiography-a-randomized-controlled-study
#20
S Sruthi, Banashree Mandal, Manoj K Rohit, Goverdhan Datt Puri
Background: Moderate sedation is required for out-patient transesophageal echocardiography (TEE). Our objective was to compare the effect of Ketofol and dexmedetomidine for outpatient procedural sedation in diagnostic TEE with a hypothesis that Ketofol would be as effective as dexmedetomidine. Patients and. Methods: Fifty adult patients of age group 18-60 years with atrial septal defect, rheumatic valvular heart disease undergoing diagnostic TEE in the outpatient echocardiography laboratory were randomized into two groups, group D and group KF...
April 2018: Annals of Cardiac Anaesthesia
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