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https://www.readbyqxmd.com/read/28938998/seagrass-ecosystem-services-what-s-next
#1
Lina Mtwana Nordlund, Emma L Jackson, Masahiro Nakaoka, Jimena Samper-Villarreal, Pedro Beca-Carretero, Joel C Creed
Seagrasses, marine flowering plants, provide a wide range of ecosystem services, defined here as natural processes and components that directly or indirectly benefit human needs. Recent research has shown that there are still many gaps in our comprehension of seagrass ecosystem service provision. Furthermore, there seems to be little public knowledge of seagrasses in general and the benefits they provide. This begs the questions: how do we move forward with the information we have? What other information do we need and what actions do we need to take in order to improve the situation and appreciation for seagrass? Based on the outcomes from an international expert knowledge eliciting workshop, three key areas to advance seagrass ecosystem service research were identified: 1) Variability of ecosystem services within seagrass meadows and among different meadows; 2) Seagrass ecosystem services in relation to, and their connection with, other coastal habitats; and 3) Improvement in the communication of seagrass ecosystem services to the public...
September 20, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28938472/dopamine-neuron-restricted-leptin-receptor-lepr-signaling-reduces-some-aspects-of-food-reward-but-exacerbates-the-obesity-of-lepr-deficient-male-mice
#2
Maggie C Evans, Greg M Anderson
The contribution of leptin-induced modulation of dopamine neurons to feeding behavior and energy homeostasis remains unclear. Midbrain dopamine neurons regulate the reward value of food, and direct leptin administration to the midbrain reduces food intake. However, selective deletion of leptin receptors (Lepr) from dopamine neurons has no effect on body weight, food intake or hedonic responses, either suggesting leptin acts indirectly or demonstrating sufficient compensation occurs to mask any direct leptin-dopamine effects...
August 18, 2017: Endocrinology
https://www.readbyqxmd.com/read/28927922/retrospective-clinical-evaluation-of-ceramic-onlays-placed-by-dental-students
#3
Jennifer J Archibald, Gildo Coelho Santos, Maria Jacinta Moraes Coelho Santos
STATEMENT OF PROBLEM: Indirect restorations with partial or complete occlusal surface coverage have been recommended to restore teeth with weakened walls in order to prevent cusp fracture. The success of these restorations when performed by dental students is unknown. PURPOSE: The purpose of this retrospective study was to evaluate the clinical performance of adhesively bonded ceramic onlay restorations placed by third- and fourth-year dental students. MATERIAL AND METHODS: Sixty-five ceramic onlays were placed in patients between 2009 and 2015...
September 16, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28917129/residential-road-traffic-noise-and-general-mental-health-in-youth-the-role-of-noise-annoyance-neighborhood-restorative-quality-physical-activity-and-social-cohesion-as-potential-mediators
#4
Angel Dzhambov, Boris Tilov, Iana Markevych, Donka Dimitrova
Given the ubiquitous nature of both noise pollution and mental disorders, their alleged association has not escaped the spotlight of public health research. The effect of traffic noise on mental health is probably mediated by other factors, which have not been elucidated sufficiently. Herein, we aimed to disentangle the pathways linking road traffic noise to general mental health in Bulgarian youth, with a focus on several candidate mediators - noise annoyance, perceived restorative quality of the living environment, physical activity, and neighborhood social cohesion...
September 13, 2017: Environment International
https://www.readbyqxmd.com/read/28913658/liver-specific-reconstitution-of-ceacam1-reverses-the-metabolic-abnormalities-caused-by-its-global-deletion-in-male-mice
#5
Lucia Russo, Harrison T Muturi, Hilda E Ghadieh, Simona S Ghanem, Thomas A Bowman, Hye Lim Noh, Sezin Dagdeviren, Godwin Y Dogbey, Jason K Kim, Garrett Heinrich, Sonia M Najjar
AIMS/HYPOTHESIS: The carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1) promotes insulin clearance. Mice with global null mutation (Cc1 (-/-)) or with liver-specific inactivation (L-SACC1) of Cc1 (also known as Ceacam1) gene display hyperinsulinaemia resulting from impaired insulin clearance, insulin resistance, steatohepatitis and obesity. Because increased lipolysis contributes to the metabolic phenotype caused by transgenic inactivation of CEACAM1 in the liver, we aimed to further investigate the primary role of hepatic CEACAM1-dependent insulin clearance in insulin and lipid homeostasis...
September 14, 2017: Diabetologia
https://www.readbyqxmd.com/read/28902242/polymerization-shrinkage-stress-of-composite-resins-and-resin-cements-what-do-we-need-to-know
#6
Carlos José Soares, André Luis Faria-E-Silva, Monise de Paula Rodrigues, Andomar Bruno Fernandes Vilela, Carmem Silvia Pfeifer, Daranee Tantbirojn, Antheunis Versluis
Polymerization shrinkage stress of resin-based materials have been related to several unwanted clinical consequences, such as enamel crack propagation, cusp deflection, marginal and internal gaps, and decreased bond strength. Despite the absence of strong evidence relating polymerization shrinkage to secondary caries or fracture of posterior teeth, shrinkage stress has been associated with post-operative sensitivity and marginal stain. The latter is often erroneously used as a criterion for replacement of composite restorations...
August 28, 2017: Brazilian Oral Research
https://www.readbyqxmd.com/read/28892464/network-wide-reorganization-of-procedural-memory-during-nrem-sleep-revealed-by-fmri
#7
Shahabeddin Vahdat, Stuart Fogel, Habib Benali, Julien Doyon
Sleep is necessary for the optimal consolidation of newly acquired procedural memories. However, the mechanisms by which motor memory traces develop during sleep remain controversial in humans, as this process has been mainly investigated indirectly by comparing pre- and post-sleep conditions. Here, we used functional magnetic resonance imaging and electroencephalography during sleep following motor sequence learning to investigate how newly-formed memory traces evolve dynamically over time. We provide direct evidence for transient reactivation followed by downscaling of functional connectivity in a cortically-dominant pattern formed during learning, as well as gradual reorganization of this representation toward a subcortically-dominant consolidated trace during non-rapid eye movement (NREM) sleep...
September 11, 2017: ELife
https://www.readbyqxmd.com/read/28884474/recognition-by-natural-killer-cells-of-n-6-isopentenyladenosine-treated-human-glioma-cell-lines
#8
Elena Ciaglia, Chiara Laezza, Mario Abate, Simona Pisanti, Roberta Ranieri, Alba D'Alessandro, Paola Picardi, Patrizia Gazzerro, Maurizio Bifulco
Cancer cell stress induced by cytotoxic agents promote antitumor immune response. Here we observed that N6-isopentenyladenosine (iPA), an isoprenoid modified adenosine with a well established anticancer activity, was able to induce a significant upregulation of cell surface expression of NKG2D ligands on glioma cells in vitro and xenografted in vivo. Specifically suboptimal doses of iPA (0.1 and 1µM) control the selective upregulation of ULBP2 on p53wt-expressing U343MG and that of MICA/B on p53mut-expressing U251MG cells...
September 7, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28880927/scf-kit-signaling-induces-endothelin-3-synthesis-and-secretion-thereby-activates-and-regulates-endothelin-b-receptor-for-generating-temporally-and-spatially-precise-nitric-oxide-to-modulate-scf-and-or-kit-expressing-cell-functions
#9
Lei L Chen, Jing Zhu, Jonathan Schumacher, Chongjuan Wei, Latha Ramdas, Victor G Prieto, Arnie Jimenez, Marco A Velasco, Sheryl R Tripp, Robert H I Andtbacka, Launce Gouw, George M Rodgers, Liansheng Zhang, Benjamin K Chan, Pamela B Cassidy, Robert S Benjamin, Sancy A Leachman, Marsha L Frazier
We demonstrate that SCF-KIT signaling induces synthesis and secretion of endothelin-3 (ET3) in human umbilical vein endothelial cells and melanoma cells in vitro, gastrointestinal stromal tumors, human sun-exposed skin, and myenteric plexus of human colon post-fasting in vivo. This is the first report of a physiological mechanism of ET3 induction. Integrating our finding with supporting data from literature leads us to discover a previously unreported pathway of nitric oxide (NO) generation derived from physiological endothelial NO synthase (eNOS) or neuronal NOS (nNOS) activation (referred to as the KIT-ET3-NO pathway)...
2017: PloS One
https://www.readbyqxmd.com/read/28866394/direct-and-indirect-effects-of-multiple-stressors-on-stream-invertebrates-across-watershed-reach-and-site-scales-a-structural-equation-modelling-better-informing-on-hydromorphological-impacts
#10
B Villeneuve, J Piffady, L Valette, Y Souchon, P Usseglio-Polatera
The purpose of our approach was to take into account the nested spatial scales driving stream functioning in the description of pressures/ecological status links by analysing the results of a hierarchical model. The development of this model has allowed us to answer the following questions: Does the consideration of the indirect links between anthropogenic pressures and stream ecological status modify the hierarchy of pressure types impacting benthic invertebrates? Do the different nested scales play different roles in the anthropogenic pressures/ecological status relationship? Does this model lead to better understanding of the specific role of hydromorphology in the evaluation of stream ecological status? To achieve that goal, we used the Partial Least Square (PLS) path modelling method to develop a structural model linking variables describing (i) land use and hydromorphological alterations at the watershed scale, (ii) hydromorphological alterations at the reach scale, (iii) nutrients-organic matter contamination levels at the site scale, and (iv) substrate characteristics at the sampling site scale, to explain variation in values of a macroinvertebrate-based multimetric index: the French I2M2...
August 31, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28862587/modified-peek-as-an-alternative-crown-framework-material-for-weak-abutment-teeth-a-case-report
#11
Panagiotis Zoidis, Eleonora Bakiri, Ioannis Papathanasiou, Anastasia Zappi
This case report describes the fabrication of 3 single crowns for a patient with weakened abutment teeth. The patient exhibited nocturnal bruxism and clenching but refused to use an occlusal appliance. The abutment teeth were endodontically treated and presented with loss of tooth structure and thin axial walls. The patient was seeking a metal-free restoration, and all-ceramic restorations were contraindicated because of the potential for abrasion of the opposing teeth and direct force transmission to the weak abutment teeth...
September 2017: General Dentistry
https://www.readbyqxmd.com/read/28860773/can-melatonin-prevent-or-improve-metabolic-side-effects-during-antipsychotic-treatments
#12
Maria-Cristina Porfirio, Juliana Paula Gomes de Almeida, Maddalena Stornelli, Silvia Giovinazzo, Diane Purper-Ouakil, Gabriele Masi
In the last two decades, second-generation antipsychotics (SGAs) were more frequently used than typical antipsychotics for treating both psychotic and nonpsychotic psychiatric disorders in both children and adolescents, because of their lower risk of adverse neurological effects, that is, extrapyramidal symptoms. Recent studies have pointed out their effect on weight gain and increased visceral adiposity as they induce metabolic syndrome. Patients receiving SGAs often need to be treated with other substances to counteract metabolic side effects...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28858716/assessment-of-toxic-effects-of-magnetic-particles-used-for-lake-restoration-on-chlorella-sp-and-on-brachionus-calyciflorus
#13
I Álvarez-Manzaneda, I de Vicente
Laboratory tests, by following standardized Organization for Economic Co-operation and Development (OECD) protocols, were run for evaluating the acute effects of iron magnetic microparticles (MPs), recently proposed for lake restoration, on Chlorella sp. (algal growth) and on the rotifer B. calyciflorus (mortality). In addition, the MPs potential indirect effects on rotifer egg bank were assessed by performing hatching rate test with B. calyciflorus cysts in contact with dissolved iron (Tot-Fedis). In the algal growth test, no inhibition occurred at the two lowest MPs concentrations (0...
August 25, 2017: Chemosphere
https://www.readbyqxmd.com/read/28842621/socs1-regulates-hepatic-regenerative-response-and-provides-prognostic-makers-for-acute-obstructive-cholangitis
#14
Jianhua Yu, Weiguang Zhang, Hongwei Qian, Haijun Tang, Weiguo Lin, Baochun Lu
Acute obstructive cholangitis (AOC) is a common and severe infectious diseases that occurs in an obstructed biliary system. The suppressors of cytokine signaling (SOCS) family include well-known negative regulators of cytokine receptor signaling. However, few studies have been conducted to determine their function in AOC. In this study, we showed that SOCS1 expression aberrantly changed and was associated with AOC prognosis in rat models. Decreased SOCS1 expression enhances regenerative response after biliary drainage (BD) resulting from AOC by upregulating hepatocyte growth factor (HGF) signaling...
August 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28830068/cytokine-production-in-vitro-and-in-rat-model-of-colitis-in-response-to-lactobacillus-plantarum-ls-07
#15
Jana Štofilová, Tomaž Langerholc, Cristian Botta, Primož Treven, Lidija Gradišnik, Rastislav Salaj, Alena Šoltésová, Izabela Bertková, Zdenka Hertelyová, Alojz Bomba
Over the past decade, it has become clear that specific probiotic lactobacilli are valuable in the prevention and treatment of infectious and inflammatory diseases of gastrointestinal tract but their successful application would benefit greatly from a better understanding of the mechanisms of individual strains. Hence, each probiotic strain should be characterized for their immune activity before being proposed for clinical applications. The aim of the study was to characterize the immunomodulatory activity of the strain Lactobacillus (L...
October 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28829938/fluoride-ion-release-of-self-adhesive-resin-cements-and-their-potential-to-inhibit-in-situ-enamel-and-dentin-demineralization
#16
V A Pellizzari, A C Michels, S T Luiz, E M de Souza, Cpm Tabchoury, R N Rached
OBJECTIVE: This study evaluated in situ the potential of a glass ionomer and self-adhesive resin cements to inhibit enamel and dentin demineralization around indirect restorations exposed to cariogenic challenge. The cumulative fluoride release (CFR) of materials was measured in water and acid. METHODS: Seventy blocks cut from human molars received two indirect composite restorations (one in enamel and another in dentin) luted with Ketac Cem EasyMix (GIC, positive control), SeT (SeT), Maxcem Elite (Max), Smart Cem2 (Smart), and RelyX Unicem 2 (Unicem2)...
September 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28829930/sudden-onset-of-subcutaneous-air-emphysema-after-the-application-of-air-to-a-maxillary-premolar-located-in-a-nonsurgical-field
#17
E A Van Tubergen, D Tindle, G M Fox
Although rare, subcutaneous air emphysema can occur during dental procedures such as endodontic treatment, surgical extractions, and preparing a tooth for an indirect or direct dental restoration. We report the development of a subcutaneous air emphysema that was introduced through the periodontal ligament of an untreated premolar after the use of an air syringe to dry the tooth.
September 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28828189/restorative-rehabilitation-of-a-patient-with-dental-erosion
#18
Mohammed Thamer AlShahrani, Satheesh B Haralur, Mohammed Alqarni
Dental erosion is the chemical dissolution of the tooth structure. Factors like eating disorders and gastrointestinal diseases are recognized as intrinsic factors for dental erosion. Advanced stages of dental erosion extensively damage the tooth morphology, consequently affecting both esthetics and functions. Reports indicate the growing prevalence of erosion, and hence knowledge of restorative rehabilitation of tooth erosion is an integral part of the contemporary dental practice. This clinical report describes an adult patient with gastroesophageal reflux induced dental erosion involving the palatal surface of the maxillary anterior teeth...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28828160/comparison-of-the-effect-of-different-surface-treatments-on-the-bond-strength-of-different-cements-with-nickel-chromium-metal-alloy-an-in-vitro-study
#19
Saumya Kapoor, Nayana Prabhu, Dhanasekar Balakrishnan
BACKGROUND: For success of any indirect metal restoration, a strong bond between cement and the intaglio surface of metal is imperative. The aim of this study is to evaluate and compare the effect of different surface treatment on the tensile and shear bond strength of different cements with nickel-chromium alloy. MATERIAL AND METHODS: 120 premolars were sectioned horizontally parallel to the occlusal surface to expose the dentin. Wax patterns were fabricated for individual tooth followed by casting them in nickel chromium alloy...
July 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28826985/novel-self-healing-dental-luting-cements-with-microcapsules-for-indirect-restorations
#20
Junling Wu, Qiang Zhang, Michael D Weir, Thomas W Oates, Chuanjian Zhou, Xiaofeng Chang, Hockin H K Xu
OBJECTIVES: Dental luting cements are widely used to bond indirect restorations to teeth. Microcracks often lead to cement failures. The objectives of this study were to develop the first self-healing luting cement, and investigate dentin bond strength, mechanical properties, crack-healing, and self-healing durability in water-aging for 6 months. METHODS: Microcapsules of poly(urea-formaldehyde) (PUF) shells with triethylene glycol dimethacrylate (TEGDMA) as healing liquid were synthesized...
August 18, 2017: Journal of Dentistry
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