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https://www.readbyqxmd.com/read/29347979/altered-environmental-light-drives-retinal-change-in-the-atlantic-tarpon-megalops-atlanticus-over-timescales-relevant-to-marine-environmental-disturbance
#1
Lorian E Schweikert, Michael S Grace
BACKGROUND: For many fish species, retinal function changes between life history stages as part of an encoded developmental program. Retinal change is also known to exhibit plasticity because retinal form and function can be influenced by light exposure over the course of development. Aside from studies of gene expression, it remains largely unknown whether retinal plasticity can provide functional responses to short-term changes in environmental light quality. The aim of this study was to determine whether the structure and function of the fish retina can change in response to altered light intensity and spectrum-not over the course of a developmental regime, but over shorter time periods relevant to marine habitat disturbance...
January 18, 2018: BMC Ecology
https://www.readbyqxmd.com/read/29347451/computational-investigation-of-tb-iii-ion-line-intensities-in-single-bubble-sonoluminescence
#2
Jinfu Liang, Yu An
We perform a computational fluid dynamics simulation of trivalent terbium [Tb(III)] ion line emissions from single-bubble sonoluminescence (SBSL). Our simulation includes dynamic boundary conditions as well as the effects of gas properties and quenching by species, such as nitrite ion (NO_{2}^{-}). Simulation results demonstrate that when the maximum temperature inside a dimly luminescing bubble is relatively low, emission peaks from excited Tb(III) ions are prominent within the emission spectra. As the maximum temperature of the bubble increases, emission peaks of Tb(III) ions fade away relative to the continuum background emission...
December 2017: Physical Review. E
https://www.readbyqxmd.com/read/29344254/inhibitory-effect-of-the-low-toxic-exogenous-aryl-hydrocarbon-receptor-modulator-3-3-diindolylmethane-on-gastric-cancer-in-mice
#3
Mingli Su, Chenchen Qian, Yumin Hu, Wenhua Lu, Rongkang Huang, Minhu Chen, Jie Chen
3'3-Diindolylmethane (DIM) has been proved to exhibit anticancer properties in many solid tumors. In our previous study, we demonstrated that DIM inhibited SGC7901 cell proliferation by inducing apoptosis and delaying cell cycle progression. Herein, we further explored the anti-tumor effect of DIM on SGC-7901 tumor bearing mice. Tumors were excised, weighed, and tested by western blot and TdT-UTP nick-end labeling (TUNEL) assay. Blood samples were collected for biochemical analysis. The expression levels of AhR and cytochrome P450, family 1, subfamily A, polypeptide 1 (CYP1A1) protein were evaluated by western-blot assay...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29329307/response-time-scores-on-a-reflexive-attention-task-predict-a-child-s-inattention-score-from-a-parent-report
#4
Rebecca A Lundwall, Jordan F Sgro, Julia Fanger
Compared to sustained attention, only a small proportion of studies examine reflexive attention as a component of everyday attention. Understanding the significance of reflexive attention to everyday attention may inform better treatments for attentional disorders. Children from a general population (recruited when they were from 9-16 years old) completed an exogenously-cued task measuring the extent to which attention is captured by peripheral cue-target conditions. Parents completed a questionnaire reporting their child's day-to-day attention...
2018: PloS One
https://www.readbyqxmd.com/read/29326985/use-of-an-autonomous-surface-vehicle-reveals-small-scale-diel-vertical-migrations-of-zooplankton-and-susceptibility-to-light-pollution-under-low-solar-irradiance
#5
Martin Ludvigsen, Jørgen Berge, Maxime Geoffroy, Jonathan H Cohen, Pedro R De La Torre, Stein M Nornes, Hanumant Singh, Asgeir J Sørensen, Malin Daase, Geir Johnsen
Light is a major cue for nearly all life on Earth. However, most of our knowledge concerning the importance of light is based on organisms' response to light during daytime, including the dusk and dawn phase. When it is dark, light is most often considered as pollution, with increasing appreciation of its negative ecological effects. Using an Autonomous Surface Vehicle fitted with a hyperspectral irradiance sensor and an acoustic profiler, we detected and quantified the behavior of zooplankton in an unpolluted light environment in the high Arctic polar night and compared the results with that from a light-polluted environment close to our research vessels...
January 2018: Science Advances
https://www.readbyqxmd.com/read/29325966/role-of-intraoperative-ultrasound-to-extend-the-application-of-minimally-invasive-surgery-for-treatment-of-recurrent-gynecological-cancer
#6
Floriana Mascilini, Lorena Quagliozzi, Francesca Moro, Maria Cristina Moruzzi, Valerio Gallotta, Salvatore Gueli Alletti, Giovanni Scambia, Antonia Carla Testa, Anna Fagotti
STUDY OBJECTIVE: To describe the potential role of intraoperative ultrasound (IOUS) in the detection and localization of recurrent disease in gynecological cancer patients during minimally invasive surgery (MIS). DESIGN: A prospective cohort study (Canadian Task Force II-1). SETTING: A University hospital. PATIENTS: From November 2015 to February 2017, 51 gynecological cancer patients with isolated recurrent disease and candidate for secondary cytoreductive surgery (SCS) were treated by MIS...
January 8, 2018: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/29325109/estimating-adolescent-sleep-need-using-dose-response-modelling
#7
Michelle A Short, Nathan Weber, Chelsea Reynolds, Scott Coussens, Mary A Carskadon
Study Objectives: This study will, (a) estimate the nightly sleep need of human adolescents, (b) determine the time course and severity of sleep-related deficits when sleep is reduced below this optimal quantity, and (c) determine whether sleep restriction perturbs the circadian system as well as the sleep homeostat. Methods: Thirty-four adolescents aged 15 to 17 years spent 10 days and 9 nights in the sleep laboratory. Between two baseline nights and two recovery nights with 10-hours' time in bed (TIB) per night, participants experienced either severe sleep restriction (5-hr TIB), moderate sleep restriction (7...
January 6, 2018: Sleep
https://www.readbyqxmd.com/read/29318392/relationship-between-melatonin-and-bone-resorption-rhythms-in-premenopausal-women
#8
Melissa A St Hilaire, Shadab A Rahman, Joshua J Gooley, Paula A Witt-Enderby, Steven W Lockley
Although evidence exists for a daily rhythm in bone metabolism, the contribution of factors such as melatonin levels, the light-dark cycle, and the sleep-wake cycle is difficult to differentiate given their highly correlated time courses. To examine these influences on bone resorption, we collected 48-h sequential urine samples under both ambulatory (8-h sleep:16-h wake) and constant routine (CR) (constant wake, posture, nutrition and dim light) conditions from 20 healthy premenopausal women. Urinary 6-sulphatoxymelatonin (aMT6s; ng/h) and the bone resorption marker amino-terminal cross-linked collagen I telopeptide (NTx; bone collagen equivalents nM/h) were assayed and fit by cosinor models to determine significant 24-h rhythms and acrophase...
January 9, 2018: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/29317715/hybtrack-a-hybrid-single-particle-tracking-software-using-manual-and-automatic-detection-of-dim-signals
#9
Byung Hun Lee, Hye Yoon Park
Single particle tracking is a compelling technique for investigating the dynamics of nanoparticles and biological molecules in a broad range of research fields. In particular, recent advances in fluorescence microscopy have made single molecule tracking a prevalent method for studying biomolecules with a high spatial and temporal precision. Particle tracking algorithms have matured over the past three decades into more easily accessible platforms. However, there is an inherent difficulty in tracing particles that have a low signal-to-noise ratio and/or heterogeneous subpopulations...
January 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29316692/3-3-diindolylmethane-suppressed-cyprodinil-induced-epithelial-mesenchymal-transition-and-metastatic-related-behaviors-of-human-endometrial-ishikawa-cells-via-an-estrogen-receptor-dependent-pathway
#10
Bo-Gyoung Kim, Jin-Wook Kim, Soo-Min Kim, Ryeo-Eun Go, Kyung-A Hwang, Kyung-Chul Choi
Cyprodinil (CYP) is a pyrimidine amine fungicide that has been extensively used in agricultural areas. 3,3'-Diindolylmethane (DIM) is a derivative of the dietary phytoestrogen, indole-3-carbinol (I3C), which is derived from cruciferous vegetables and considered to be a cancer-preventive phytonutrient agent. In this study, the effects of CYP and DIM were examined on the cell viability, invasion, and metastasis of human endometrial cancer cells, Ishikawa, via epithelial mesenchymal transition (EMT). CYP increased the level of cell viability of Ishikawa cells compared to DMSO as a control, as did E2...
January 8, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29310425/treatment-with-phytoestrogens-reversed-triclosan-and-bisphenol-a-induced-anti-apoptosis-in-breast-cancer-cells
#11
Geum-A Lee, Kyung-Chul Choi, Kyung-A Hwang
Triclosan (TCS) and bisphenol A (BPA) are endocrine-disrupting chemicals that interfere with the hormone or endocrine system and may cause cancer. Kaempferol (Kaem) and 3,3'-diindolylmethane (DIM) are phytoestrogens that play chemopreventive roles in the inhibition of carcinogenesis and cancer progression. In this study, the influence of TCS, BPA, Kaem, and DIM on proliferation and apoptotic abilities of VM7Luc4E2 breast cancer cells were examined. MTT assay revealed that TCS (0.1-10 μM), BPA (0.1-10 μM) and E2 (0...
January 9, 2018: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/29306691/sleep-behavior-and-depression-findings-from-the-china-kadoorie-biobank-of-0-5-million-chinese-adults
#12
Xiaoyan Sun, Bang Zheng, Jun Lv, Yu Guo, Zheng Bian, Ling Yang, Yiping Chen, Zhenwang Fu, Hong Guo, Peng Liang, Zhengming Chen, Junshi Chen, Canqing Yu, Liming Li
BACKGROUND: Mixed results have shown the association between sleep behavior and depression, but evidence relating the joint effect of sleep duration and sleep disturbances is limited, especially in Chinese population. METHODS: A total of 512,891 adults aged 30-79 years from China Kadoorie Biobank (CKB) were included. Depression was defined by Composite International Diagnostic Inventory-short form (CIDI-SF). Sleep duration and sleep disturbances, including difficulty initiating and maintaining sleep (DIMS), early morning awakening (EMA), daytime dysfunction (DDF) and any sleep disturbances (ASD), were obtained by a self-reported questionnaire...
December 28, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29305547/evaluation-of-the-amplidiag-carbar-vre-kit-for-the-accurate-detection-of-carbapenemase-producing-bacteria
#13
Saoussen Oueslati, Delphine Girlich, Laurent Dortet, Thierry Naas
As carbapenemase-producing Gram-negative bacilli (CP-GNB) (Enterobacteriaceae, Pseudomonadaceae and Acinetobacter spp.) are becoming a major public health issue, there is an urgent need for accurate and fast diagnostic tests. Amplidiag® Carba-R+VRE assay is a multiplex nucleic acid-based in-vitro diagnostic test intended for the detection of CP-GNB and vancomycin resistant enterococci (VRE) from cultured colonies.We have evaluated its ability to detect carbapenemases genes in 100 well-characterized GNB, and in 200 consecutive enterobacterial isolates with reduced susceptibility to carbapenems and that were referred to the French National Reference Center for carbapenem-resistance...
January 5, 2018: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29300449/alkoxybenzothiadiazole-based-fullerene-and-nonfullerene-polymer-solar-cells-with-high-shunt-resistance-for-indoor-photovoltaic-applications
#14
Song Yi Park, Yuxiang Li, Jaewon Kim, Tack Ho Lee, Bright Walker, Han Young Woo, Jin Young Kim
We synthesized three semi-crystalline polymers (PTTBTBO, PDTBTBO, and P2FDTBTBO) by modulating the intra- and intermolecular noncovalent coulombic interactions, and investigated their photovoltaic characteristics under various light intensities. Low series (Rs) and high shunt (Rsh) resistances are essential prerequisites for good device properties under standard illumination (100 mW cm-2). Considering these factors, among three polymers PDTBTBO polymer solar cells (PSCs) exhibited the most desirable characteristics, with peak power conversion efficiencies (PCE) of 7...
January 4, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29299909/chromatic-titanium-photoanode-for-dye-sensitized-solar-cells-under-rear-illumination
#15
Chih-Hsiang Huang, Yu-Wen Chen, Chih-Ming Chen
Titanium (Ti) has high potential in many practical applications such as biomedicine, architecture, aviation, and energy. In this study, we demonstrate an innovative application of dye-sensitized solar cell (DSSC) based on Ti photoanode that can be integrated into the roof engineering of large-scale architectures. A chromatic Ti foil produced by anodizing oxidation (coloring) technology (AOT) is an attractive roof material for large-scale architecture, showing a colorful appearance due to the formation of a reflective TiO2 thin layer on both surfaces of Ti...
January 4, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29294967/perpetration-and-experience-of-intimate-partner-violence-among-residents-in-bariga-local-community-development-area-lagos-state-nigeria
#16
Emeka Eugene Dim, Oluseyi Ogunye
The occurrence of aggressive behavior in intimate relationships carries serious mental and physical health consequences for the victims and children exposed to such events. Studies have been devoted toward understanding the nature and prevalence of the phenomenon; however, there has been a paucity of empirical investigation into the complexities and nuances of the subject matter, and this study seeks to address one of such complexities. This study examines the dynamics of intimate partner violence (IPV) within the context of perpetration and victimization among residents in Bariga Local Community Development Area in Lagos State, Nigeria...
October 1, 2017: Journal of Interpersonal Violence
https://www.readbyqxmd.com/read/29290446/is-the-profitability-of-canadian-freestall-farms-associated-with-their-performance-on-an-animal-welfare-assessment
#17
M Villettaz Robichaud, J Rushen, A M de Passillé, E Vasseur, D Haley, K Orsel, D Pellerin
Improving animal welfare on farm can sometimes require substantial financial investments. The Canadian dairy industry recently updated their Code of Practice for the care of dairy animals and created a mandatory on-farm animal care assessment (proAction Animal Care). Motivating dairy farmers to follow the recommendations of the Code of Practice and successfully meet the targets of the on-farm assessment can be enhanced by financial gain associated with improved animal welfare. The aim of the current study was to evaluate the association between meeting or not meeting several criteria from an on-farm animal welfare assessment and the farms' productivity and profitability indicators...
December 28, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29290445/predicting-hyperketonemia-by-logistic-and-linear-regression-using-test-day-milk-and-performance-variables-in-early-lactation-holstein-and-jersey-cows
#18
T L Chandler, R S Pralle, J R R Dórea, S E Poock, G R Oetzel, R H Fourdraine, H M White
Although cowside testing strategies for diagnosing hyperketonemia (HYK) are available, many are labor intensive and costly, and some lack sufficient accuracy. Predicting milk ketone bodies by Fourier transform infrared spectrometry during routine milk sampling may offer a more practical monitoring strategy. The objectives of this study were to (1) develop linear and logistic regression models using all available test-day milk and performance variables for predicting HYK and (2) compare prediction methods (Fourier transform infrared milk ketone bodies, linear regression models, and logistic regression models) to determine which is the most predictive of HYK...
December 28, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29290424/changes-in-gene-expression-in-the-rumen-and-colon-epithelia-during-the-dry-period-through-lactation-of-dairy-cows-and-effects-of-live-yeast-supplementation
#19
A Bach, I Guasch, G Elcoso, F Chaucheyras-Durand, M Castex, F Fàbregas, E Garcia-Fruitos, A Aris
The objectives of this study were (1) to use endoscopy to collect biopsies from the rumen and colon epithelia to describe changes in gene expression in these 2 tissues as cows move from a dry to a lactation ration and (2) to evaluate the potential influence that supplementation of live yeast could exert on these 2 epithelia. Twenty-one Holstein cows were split into 2 treatments and received either 300 g/d of corn containing 1 × 1010 cfu/d of live yeast (LY; n = 10) or 300 g/d of corn with no supplementation (control; n = 11) starting 21 ± 2...
December 28, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29284899/myometrium-invasion-tumour-size-and-lymphovascular-invasion-as-a-prognostic-factor-in-dissemination-of-pelvic-lymphatics-at-endometrial-carcinoma
#20
Nenad Lucic, Dragica Draganovic, Sanja Sibincic, Vesna Ecim-Zlojutro, Snjezana Milicevic
Objective: The aim of this work is to show the importance of the depth of myometrium invasion, tumour size and lymphovascular invasion as prognostic factors in dissemination of lymphatic nodes at endometrial carcinoma (CE). Materials and methods: In the period from 2010 to 2015 at the University Clinic for Gynecology and Obstetrics in Banja Luka, 221 endometrial cancer surgeries were done (laparatomy 184-83%, laparascopy 37-16,74%). Patients who had uterus bleeding in peri/postmenopause or those whose endometrium thickness was bigger than 5 mm which was established by ultrasound, or those who had in their cavum uteri pathological (PH) diagnosis, underwent fractional curettage (FC) or hysteroscopy in order to obtain pathohistological endometrium diagnosis...
October 2017: Medical Archives
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