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https://www.readbyqxmd.com/read/29103483/mathematical-modelling-of-radiation-induced-cancer-risk-from-breast-screening-by-mammography
#1
Raed M K M Ali, Andrew England, Claire Mercer, Andrew Tootell, Lucy Walton, Wouter Schaake, Peter Hogg
OBJECTIVES: Establish a method to determine and convey lifetime radiation risk from FFDM screening. METHODS: Radiation risk from screening mammography was quantified using effective risk (number of radiation-induced cancer cases/million). For effective risk calculations, organ doses and examined breast MGD were used. Screening mammography was simulated by exposing a breast phantom for cranio-caudal and medio-lateral oblique for each breast using 16 FFDM machines...
November 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/29103124/features-and-influencing-factors-of-nitrogen-and-phosphorus-diffusive-fluxes-at-the-sediment-water-interface-of-erhai-lake
#2
Haichao Zhao, Li Zhang, Shengrui Wang, Lixin Jiao
Nitrogen and phosphorus diffusion at the sediment-water interface is vital to the water quality of lakes. In this paper, N and P diffusive fluxes at the sediment-water interface in Erhai Lake were studied using the sediment-pore water diffusive flux method. Characteristics of temporal and spatial variation of N and P diffusive fluxes were analyzed. Effects of the physicochemical properties of sediments and overlying water were discussed. Results showed that (1) the total N and P diffusive fluxes at the sediment-water interface of Erhai Lake are relatively low...
November 4, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29092072/mouse-genome-database-mgd-2018-knowledgebase-for-the-laboratory-mouse
#3
Cynthia L Smith, Judith A Blake, James A Kadin, Joel E Richardson, Carol J Bult
The Mouse Genome Database (MGD; http://www.informatics.jax.org) is the key community mouse database which supports basic, translational and computational research by providing integrated data on the genetics, genomics, and biology of the laboratory mouse. MGD serves as the source for biological reference data sets related to mouse genes, gene functions, phenotypes and disease models with an increasing emphasis on the association of these data to human biology and disease. We report here on recent enhancements to this resource, including improved access to mouse disease model and human phenotype data and enhanced relationships of mouse models to human disease...
October 30, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29090572/air-emission-reduction-benefits-of-biogas-electricity-generation-at-municipal-wastewater-treatment-plants
#4
Daniel Beryl Gingerich, Meagan S Mauter
Conventional processes for municipal wastewater treatment facilities are energy and materially intensive. This work quantifies the air emission implications of energy consumption, chemical use, and direct pollutant release at municipal wastewater treatment facilities across the US and assesses the potential to avoid these damages by generating electricity and heat from the combustion of biogas produced during anaerobic sludge digestion. We find that embedded and on-site air emissions from municipal wastewater treatment imposed human health, environmental, and climate (HEC) damages on the order of $1...
November 1, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29078878/machine-learning-to-identify-multigland-disease-in-primary-hyperparathyroidism
#5
Joseph R Imbus, Reese W Randle, Susan C Pitt, Rebecca S Sippel, David F Schneider
BACKGROUND: 20%-25% of patients with primary hyperparathyroidism will have multigland disease (MGD). Preoperatative imaging can be inaccurate or unnecessary in MGD. Identification of MGD could direct the need for imaging and inform operative approach. The purpose of this study is to use machine learning (ML) methods to predict MGD. METHODS: Retrospective review of a prospective database. The ML platform, Waikato Environment for Knowledge Analysis, was used, and we selected models for (1) overall accuracy and (2) preferential identification of MGD...
November 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/29075094/effect-of-topical-3-diquafosol-sodium-on-eyes-with-dry-eye-disease-and-meibomian-gland-dysfunction
#6
Shiro Amano, Kenji Inoue
PURPOSE: To prospectively evaluate the effect of topical diquafosol sodium on eyes with dry eye disease (DED) and meibomian gland dysfunction (MGD). PATIENTS AND METHODS: The subjects were consecutive patients diagnosed with both DED and MGD at Inouye Eye Hospital between March and September of 2016. The subjects were administered topical 3% diquafosol sodium ophthalmic solution six times a day for 3 months. At each study visit, subjects underwent slit-lamp examination and completed MGD symptoms and dry eye-related quality of life score (DEQS) questionnaires...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/29055903/significant-correlation-between-meibomian-gland-dysfunction-and-keratitis-in-young-patients-with-demodex-brevis-infestation
#7
Lingyi Liang, Yan Liu, Xiaohu Ding, Hongmin Ke, Chuan Chen, Scheffer C G Tseng
AIMS: To report the clinical characteristics and correlation between meibomian gland dysfunction (MGD) and keratitis in young patients with ocular demodicosis. METHODS: Observational case series of 60 patients younger than 35 years with ocular demodicosis, of which the diagnosis was based on microscopic counting of Demodex folliculorum and D. brevis of epilated lashes. Severity of keratitis and MGD was graded by photography and meibography, respectively, in a masked fashion...
October 21, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29055358/meibomian-gland-disease-the-role-of-gland-dysfunction-in-dry-eye-disease
#8
REVIEW
Priyanka Chhadva, Raquel Goldhardt, Anat Galor
TOPIC: To discuss the pathology, causes, and ocular surface impact of meibomian gland disease (MGD), as well as its relationship to dry eye. CLINICAL RELEVANCE: MGD is a common disorder with various contributing mechanisms and clinical manifestations. Understanding MGD pathophysiology and its relationship to dry eye is important in order to optimize diagnosis and treatment algorithms. METHODS: A review of current literature was performed to discern MGD in terms of pathophysiology, risk factors, and ocular surface impact, and the relationship to dry eye...
November 2017: Ophthalmology
https://www.readbyqxmd.com/read/29052604/effect-of-topical-loteprednol-etabonate-with-lid-hygiene-on-tear-cytokines-and-meibomian-gland-dysfunction-in-prosthetic-eye-wearers
#9
J S Ko, Y Seo, M K Chae, S Y Jang, J S Yoon
PurposeTo assess tear cytokine levels and clinical outcomes in meibomian gland dysfunction (MGD) in the blind eye of patients wearing an ocular prosthesis after 2 months of treatment with topical loteprednol etabonate and eyelid scrubs with warm compresses.Patients and methodsThis study included patients with MGD wearing a unilateral ocular prosthesis for more than 1 year. All patients topically received 0.5% loteprednol etabonate and were instructed to scrub their eyelids with warm compresses on the prosthetic eye for 2 months...
October 20, 2017: Eye
https://www.readbyqxmd.com/read/29033270/a-survey-of-contact-lens-related-complications-in-a-tertiary-hospital-in-china
#10
Weiwei Li, Xuguang Sun, Zhiqun Wang, Yang Zhang
PURPOSE: To describe the type of complications related to contact lens (CL) wear in a tertiary hospital in XX, China. METHODS: A retrospective study of 141 patients who complained discomfort after wearing contact lens on an outpatient basis of XX Hospital were conducted from the January 2012 to December 2015. The data included patients' demographics, lens type, history, slit-lamp examination, reports of corneal scrapings, culture, and examination of in vivo confocal microscopy...
October 12, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29017767/inducible-nad-h-linked-methylglyoxal-oxidoreductase-regulates-cellular-methylglyoxal-and-pyruvate-through-enhanced-activities-of-alcohol-dehydrogenase-and-methylglyoxal-oxidizing-enzymes-in-glutathione-depleted-candida-albicans
#11
Min-Kyu Kwak, MyungHee Ku, Sa-Ouk Kang
BACKGROUND: High methylglyoxal content disrupts cell physiology, but mammals have scavengers to prevent glycolytic and mitochondrial dysfunctions. In yeast, methylglyoxal accumulation triggers methylglyoxal-oxidizing alcohol dehydrogenase (Adh1) activity. While methylglyoxal reductases and glyoxalases have been well studied in prokaryotes and eukaryotes, experimental evidence for methylglyoxal dehydrogenase (Mgd) and other catalytic activities of this enzyme affecting glycolysis and the tricarboxylic acid cycle is lacking...
January 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28988037/cost-effectiveness-of-methods-in-personalized-medicine-results-of-a-decision-analytic-model-in-patients-with-acute-myeloid-leukemia-with-normal-karyotype
#12
Laura Hörster, Richard F Schlenk, Michael Stadler, Maria Gabriel, Felicitas Thol, Jan Schildmann, Jochen Vollmann, Ursula Rochau, Gaby Sroczynski, Jürgen Wasem, Arnold Ganser, Matthias Port, Anja Neumann
BACKGROUND: During the last years, molecular genetic data are increasingly used as prognostic and predictive factors in acute myeloid leukemia (AML). The molecular genetic profile permits a rapid risk categorization and beyond that a prediction of differential treatment efficacy of post-remission chemotherapy versus an allogeneic hematopoietic cell transplantation (HCT) in specific subgroups. METHODS: The aim of this study was to evaluate cost-effectiveness of two different strategies of risk categorization (conventional cytogenetic diagnostics (CCD) versus molecular genetic diagnostics (MGD)) in patients with AML, using a decision-analytic state-transition model...
November 2017: Leukemia Research
https://www.readbyqxmd.com/read/28974425/comparison-of-treatment-effect-across-varying-severities-of-meibomian-gland-dropout
#13
Philip R K Turnbull, Stuti L Misra, Jennifer P Craig
PURPOSE: Better understanding of the pathophysiology of meibomian gland dysfunction (MGD) has provided the opportunity to develop treatments which could be tailored for specific presentations of MGD. This study sought to directly compare treatment effectiveness for three current therapies across differing levels of MG dropout. METHODS: Subjects (n=81), grouped by infrared meibography dropout proportions, into either no (control), mild, or pronounced MG dropout, were randomised to receive treatment with a latent heat device (n=25), liposomal spray (n=28), or heated warm compress (n=28)...
September 30, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/28958587/investigation-of-antioxidant-systems-in-human-meibomian-gland-and-conjunctival-tissues
#14
Hachemi Nezzar, Joyce N Mbekeani, Anais Noblanc, Frédéric Chiambaretta, Joël R Drevet, Ayhan Kocer
Oxidative stress (OS) associated with direct contact with the environment and light exposure is a very potent and continuous stressor of the ocular surface and internal structures of the eye that are required to manage its effects. Constant replenishment of tears together with the superficial lipid layer produced by the meibomian glands (MG) is one protective mechanism. The lipid-rich fraction of the tears coats the deeper aqueous fraction, preventing its evaporation. However, lipids are particularly sensitive to oxidative damage that could alter tear film quality...
September 27, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28956298/diagnostic-performance-of-digital-breast-tomosynthesis-and-full-field-digital-mammography-with-new-reconstruction-and-new-processing-for-dose-reduction
#15
Tokiko Endo, Takako Morita, Mikinao Oiwa, Namiko Suda, Yasuyuki Sato, Shu Ichihara, Misaki Shiraiwa, Kazuaki Yoshikawa, Takao Horiba, Hirotoshi Ogawa, Yukie Hayashi, Tomonari Sendai, Takahisa Arai
BACKGROUND: The main barrier to adoption of digital breast tomosynthesis (DBT) plus full-field digital mammography (FFDM) is radiation exposure dose. The purpose of this study was to evaluate the diagnostic performance of DBT plus FFDM, both with newly developed technology (nd), at a dose comparable to that of the conventional FFDM alone. METHODS: Nine hundred and thirteen participants were recruited from May 2014 to January 2016 consecutively. For each subject, the exposure setting for DBT(nd) + FFDM(nd) was also used for the conventional FFDM alone...
September 27, 2017: Breast Cancer: the Journal of the Japanese Breast Cancer Society
https://www.readbyqxmd.com/read/28950939/new-insights-into-the-morphology-and-function-of-meibomian-glands
#16
REVIEW
Reiko Arita, Shima Fukuoka, Naoyuki Morishige
Meibomian glands secrete meibum, which gives rise to the lipid layer of the tear film and thereby prevents excessive evaporation of tear fluid. Meibomian gland dysfunction (MGD) is a major causative condition of evaporative dry eye, which is more common than the aqueous-deficient type of dry eye. Noninvasive meibography relies on infrared light and an infrared-sensitive camera to reveal the morphology of meibomian glands in both the upper and lower eyelids, whereas tear interferometry allows both qualitative and quantitative evaluation of the lipid layer of the tear film...
October 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28950937/function-of-meibomian-gland-contribution-of-proteins
#17
REVIEW
M Vimalin Jeyalatha, Yangluowa Qu, Zhen Liu, Shangkun Ou, Xin He, Jinghua Bu, Sanming Li, Peter Sol Reinach, Zuguo Liu, Wei Li
The meibomian gland is the major contributor to the tear film lipid layer. It is generally accepted that meibomian gland secretions, i.e, meibum, play a critical role in the homeostasis of the tear film. Lipid components of meibum and their structure, as well as functions were intensively studied. However, the proteins from meibum have not attracted enough attention. This review summarizes current knowledge about protein components of the meibum, particularly their function on tear film and ocular surface, and changes in the proteins during meibomian gland dysfunction (MGD)...
October 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28950936/structure-function-relationship-of-tear-film-lipid-layer-a%C3%A2-contemporary-perspective
#18
REVIEW
Georgi As Georgiev, Petar Eftimov, Norihiko Yokoi
Tear film lipid layer (TFLL) stabilizes the air/tear surface of the human eye. Meibomian gland dysfunction (MGD) resulting in quantitative and qualitative modifications of TFLL major (>93%) component, the oily secretion of meibomian lipids (MGS), is the world leading cause of dry eye syndrome (DES) with up to 86% of all DES patients showing signs of MGD. Caused by intrinsic factors (aging, ocular and general diseases) and by extrinsic everyday influences like contact lens wear and extended periods in front of a computer screen, DES (resulting in TF instability, visual disturbances and chronic ocular discomfort) is the major ophthalmic public health disease of the present time affecting the quality of life of 10-30% of the human population worldwide...
October 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28926885/-evaluation-of-short-term-effect-of-intense-pulsed-light-combined-with-meibomian-gland-expression-in-the-treatment-of-meibomian-gland-dysfunction
#19
B Rong, P Tu, Y Tang, R X Liu, W J Song, X M Yan
Objective: To explore short-term effect of intense pulsed light (IPL) combined with meibomian gland expression in treating meibomian gland dysfunction (MGD). Methods: This study was a prospective, randomized, double-masked, controlled study. Forty-four MGD patients were enrolled in the study and received three consecutive IPL treatments with an interval of 4 weeks. One eye of each patient was randomly assigned as the study eye receiving the IPL therapy with an energy of 14-16 J/cm(2), and the fellow eye was as the control eye receiving a placebo therapy with 0 J/cm(2)...
September 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28924015/nitric-oxide-mediates-nitrite-sensing-and-acclimation-and-triggers-a-remodeling-of-lipids
#20
Lina-Juana Dolch, Josselin Lupette, Guillaume Tourcier, Mariette Bedhomme, Séverine Collin, Leonardo Magneschi, Melissa Conte, Khawla Seddiki, Christelle Richard, Erwan Corre, Laurent Fourage, Frédéric Laeuffer, Robert Richards, Michael Reith, Fabrice Rébeillé, Juliette Jouhet, Patrick McGinn, Eric Maréchal
Nitric oxide (NO) is an intermediate of the nitrogen cycle, an industrial pollutant, and a marker of climate change. NO also acts as a gaseous transmitter in a variety of biological processes. The impact of environmental NO needs to be addressed. In diatoms, a dominant phylum in phytoplankton, NO was reported to mediate programmed cell death in response to diatom-derived polyunsaturated aldehydes. Here, using the Phaeodactylum Pt1 strain, 2E,4E-decadienal supplied in the micromolar concentration range led to a nonspecific cell toxicity...
November 2017: Plant Physiology
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