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https://www.readbyqxmd.com/read/28433720/establishment-of-a-non-invasive-method-for-stress-evaluation-in-farmed-salmon-based-on-direct-fecal-corticoid-metabolites-measurement
#1
Yanran Cao, Ann-Kristin Tveten, Anne Stene
Fish welfare is an important issue for growth of the aquaculture industry. Stress responses represent animal's natural reactions to challenging conditions and could be used as a welfare indicator. Cortisol level is relevant to fish welfare condition, and is a readily measured component of the primary stress response system. Generally, cortisol is measured by blood sampling. However, fish blood cortisol level could be instantly influenced by handling-stress at sampling. Fecal corticoid metabolites (FCM) are a mixture of several different metabolites with a wide range of polarities...
April 19, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28402328/the-phenotypic-correlates-and-quantitative-genetics-of-masculinization-in-the-rodent-octodon-degus
#2
D A Roff, M E Wolak, L A Correa, M Soto-Gamboa
In some mammals, female characteristics have been shown to depend, in part, on the intrauterine position during development of female fetuses relative to male fetuses. Females developing in close proximity to males show behavioral, physiological and life history characteristics that are masculinized. With the exception of one inconclusive study, nothing is known of the genetic basis of this phenomenon. In this paper, we reported an analysis of the quantitative genetic basis of masculinization, as indicated by the anogenital distance (AGD) at birth and weaning, in the rodent Octodon degus...
April 12, 2017: Heredity
https://www.readbyqxmd.com/read/28395086/regional-overlap-of-pathologies-in-lewy-body-disorders
#3
Martí Colom-Cadena, Oriol Grau-Rivera, Lluís Planellas, Catalina Cerquera, Estrella Morenas, Sergio Helgueta, Laia Muñoz, Jaime Kulisevsky, Maria Jose Martí, Eduard Tolosa, Jordi Clarimon, Alberto Lleó, Ellen Gelpi
Lewy body disorders (LBD) are common neurodegenerative diseases characterized by the presence of aggregated α-synuclein in Lewy bodies and Lewy neurites in the central and peripheral nervous systems. The brains of patients with LBD often display other comorbid pathologies, i.e. insoluble tau, β-amyloid aggregates, TAR DNA-binding protein 43 (TDP-43) deposits, and argyrophilic grain disease (AGD). The incidence and physiological relevance of these concurrent pathological findings remain controversial. We performed a semiquantitative detailed mapping of α-synuclein, tau, β-amyloid (Aβ), TDP-43, and AGD pathologies in 17 areas in 63 LBD cases (44 with Parkinson disease [PD], 28 with dementia, and 19 with dementia with Lewy bodies)...
March 1, 2017: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/28368545/exposure-to-an-environmentally-relevant-phthalate-mixture-causes-transgenerational-effects-on-female-reproduction-in-mice
#4
Changqing Zhou, Liying Gao, Jodi A Flaws
Phthalates are used in consumer products and are known endocrine disrupting chemicals. However, limited information is available on the effects of phthalate mixture on female reproduction. Previously, we developed a phthalate mixture made of 35% diethyl phthalate, 21% di(2-ethylhexyl) phthalate, 15% dibutyl phthalate, 15% diisononyl phthalate, 8% diisobutyl phthalate, and 5% benzylbutyl phthalate that mimics human exposure. We tested the effects of prenatal exposure to this mixture on reproductive outcomes in F1 female mice and found that it impaired reproductive outcomes...
March 22, 2017: Endocrinology
https://www.readbyqxmd.com/read/28352662/experimentally-induced-testicular-dysgenesis-syndrome-originates-in-the-masculinization-programming-window
#5
Sander van den Driesche, Karen R Kilcoyne, Ida Wagner, Diane Rebourcet, Ashley Boyle, Rod Mitchell, Chris McKinnell, Sheila Macpherson, Roland Donat, Chitranjan J Shukla, Anne Jorgensen, Ewa Rajpert-De Meyts, Niels E Skakkebaek, Richard M Sharpe
The testicular dysgenesis syndrome (TDS) hypothesis, which proposes that common reproductive disorders of newborn and adult human males may have a common fetal origin, is largely untested. We tested this hypothesis using a rat model involving gestational exposure to dibutyl phthalate (DBP), which suppresses testosterone production by the fetal testis. We evaluated if induction of TDS via testosterone suppression is restricted to the "masculinization programming window" (MPW), as indicated by reduction in anogenital distance (AGD)...
March 23, 2017: JCI Insight
https://www.readbyqxmd.com/read/28333243/polycystic-ovary-syndrome-is-associated-with-anogenital-distance-a-marker-of-prenatal-androgen-exposure
#6
Yingchen Wu, Guangzheng Zhong, Shengfu Chen, Chengyu Zheng, Dehua Liao, Meiqing Xie
STUDY QUESTION: Is the presence of polycystic ovary syndrome (PCOS) associated with anogenital distance (AGD), a biomarker for the prenatal hormonal environment? SUMMARY ANSWER: The presence of PCOS is associated with longer AGD. WHAT IS KNOWN ALREADY: Although the aetiology of PCOS is unclear, emerging data suggest that the natural history of PCOS may originate from intrauterine life. Prenatal exposure to androgen hormones is considered an important factor of PCOS...
April 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28264221/long-term-efficacy-of-combined-phacoemulsification-plus-trabeculectomy-versus-phacoemulsification-plus-excimer-laser-trabeculotomy
#7
M Töteberg-Harms, J Wachtl, C Schweier, J Funk, C Kniestedt
Background Combined cataract and glaucoma procedures, and minimally-invasive glaucoma surgery in particular, have gained increasing interest over the past few years. The aim of this study was to compare the long-term efficacy of combined phaco-trabeculectomy (Phaco-Trab) and combined phacoemulsification plus excimer laser trabeculotomy (Phaco-ELT). Patients and Methods Retrospective, non-randomised, comparative, interventional case series of consecutive patients after Phaco-Trab and Phaco-ELT at the University Hospital of Zurich and the Talacker Eye Center Zurich in Switzerland...
March 6, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28244565/agreement-between-dietary-intake-of-older-adults-and-proxy-respondents-assessed-by-a-food-frequency-questionnaire
#8
S R Dias Medici Saldiva, L Bassani, A L da Silva Castro, I B Gonçalves, C R de Oliveira Sales, D M Lobo Marchioni
OBJECTIVE: To evaluate the degree of agreement of dietary intake reported by the patient subject with the dietary intake reported by a respondent (a next-of-kin or a caregiver), collected by a validated Food Frequency Questionnaire (FFQ). METHODOLOGY: 126 adults, both sexes, the average age was 65.9 years for patients and 54.4 years for respondents. They were recruited from the General Practice Clinic at the Clinical Hospital of São Paulo (AGD-FMUSP). The agreement between the responses given by patients and respondents was assessed using Spearman, weighted Kappa and Bland Altman tests...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/28196105/adaptive-geostatistical-sampling-enables-efficient-identification-of-malaria-hotspots-in-repeated-cross-sectional-surveys-in-rural-malawi
#9
Alinune N Kabaghe, Michael G Chipeta, Robert S McCann, Kamija S Phiri, Michèle van Vugt, Willem Takken, Peter Diggle, Anja D Terlouw
INTRODUCTION: In the context of malaria elimination, interventions will need to target high burden areas to further reduce transmission. Current tools to monitor and report disease burden lack the capacity to continuously detect fine-scale spatial and temporal variations of disease distribution exhibited by malaria. These tools use random sampling techniques that are inefficient for capturing underlying heterogeneity while health facility data in resource-limited settings are inaccurate...
2017: PloS One
https://www.readbyqxmd.com/read/28123099/teratogenic-effects-of-in-utero-exposure-to-di-2-ethylhexyl-phthalate-dehp-in-b6-129s4-mice
#10
Erica Ungewitter, Emmi Rotgers, Tanika Bantukul, Yasuhiko Kawakami, Grace E Kissling, Humphrey Hung-Chang Yao
Intrauterine exposure to phthalates is known to cause disorders of male reproductive function including androgen insufficiency, decreased fertility, and germ cell defects in rodents. In this study, we set out to investigate the effects of intrauterine exposure to di-(2-ethylhexyl)-phthalate (DEHP) on fetal development of the B6:129S4 mouse strain. Time-mated pregnant C57BL/6 dams were exposed to 0, 5, 250, or 500 mg/kg DEHP with corn oil as the vehicle via oral gavage from embryonic days (E)7 to 16. Survival and gross morphology of the pups were analyzed one day after the last treatment...
January 25, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28112559/breast-radiation-dose-with-cesm-compared-with-2d-ffdm-and-3d-tomosynthesis-mammography
#11
COMPARATIVE STUDY
Judy R James, William Pavlicek, James A Hanson, Thomas F Boltz, Bhavika K Patel
OBJECTIVE: We aimed to compare radiation dose received during contrast-enhanced spectral mammography (CESM) using high- and low-energy projections with radiation dose received during 2D full field digital mammography (FFDM) and 3D tomosynthesis on phantoms and patients with varying breast thickness and density. MATERIALS AND METHODS: A single left craniocaudal projection was chosen to determine the doses for 6214 patients who underwent 2D FFDM, 3662 patients who underwent 3D tomosynthesis, and 173 patients who underwent CESM in this retrospective study...
February 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28109703/investigation-of-anogenital-distance-as-a-diagnostic-tool-in-endometriosis
#12
Maria L Sánchez-Ferrer, Jaime Mendiola, Raquel Jiménez-Velázquez, Laura Cánovas-López, Shiana Corbalán-Biyang, Ana I Hernández-Peñalver, Ana Carmona-Barnosi, Ana B Maldonado-Cárceles, Maria T Prieto-Sánchez, Francisco Machado-Linde, Anibal Nieto, Alberto M Torres-Cantero
An association between anogenital distance (AGD) and endometriosis has been reported, suggesting that AGD may be a useful clinical tool in endometriosis. The predictive ability of AGD of women in discriminating presence and type of endometriosis was examined. A case-control study was conducted at the University Hospital 'Virgen de la Arrixaca', Murcia, Spain, between 2014 and 2015. A total of 114 participants diagnosed with endometriosis using ultrasound findings and 105 controls were recruited. Two AGD measurements were obtained: one from the anterior clitoral surface to the upper verge of the anus (AGDAC), and another one from the posterior fourchette to the upper verge of the anus (AGDAF)...
January 10, 2017: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/28077271/occupational-exposure-to-pesticides-reproductive-hormone-levels-and-sperm-quality-in-young-brazilian-men
#13
Cleber Cremonese, Camila Piccoli, Fabio Pasqualotto, Ruth Clapauch, Rosalina Jorge Koifman, Sergio Koifman, Carmen Freire
The association of occupational exposure to current-use pesticides with reproductive hormones, semen quality, and genital measures was investigated among young men in the South of Brazil. A cross-sectional study was conducted in 99 rural and 36 urban men aged 18-23 years. Information on pesticide use was obtained through questionnaire. Serum and semen samples were analyzed for sex hormones and sperm parameters, respectively, and measurement of anogenital distance (AGD) and testis volume (TV) were performed...
January 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28048898/mo-fg-brc-03-design-and-construction-of-a-dielectiric-wall-accelerator
#14
D Westerly
Experimental research in medical physics has expanded the limits of our knowledge and provided novel imaging and therapy technologies for patients around the world. However, experimental efforts are challenging due to constraints in funding, space, time and other forms of institutional support. In this joint ESTRO-AAPM symposium, four exciting experimental projects from four different countries are highlighted. Each project is focused on a different aspect of radiation therapy. From the USA, we will hear about a new linear accelerator concept for more compact and efficient therapy devices...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048246/mo-fg-brc-04-ionacoustic-imaging-for-particle-range-verification
#15
K Parodi
Experimental research in medical physics has expanded the limits of our knowledge and provided novel imaging and therapy technologies for patients around the world. However, experimental efforts are challenging due to constraints in funding, space, time and other forms of institutional support. In this joint ESTRO-AAPM symposium, four exciting experimental projects from four different countries are highlighted. Each project is focused on a different aspect of radiation therapy. From the USA, we will hear about a new linear accelerator concept for more compact and efficient therapy devices...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047813/su-d-209-07-measure-the-average-glandular-dose-of-a-2d-3d-breast-imaging-protocol-using-ge-senoclaire-breast-tomosynthesis-system
#16
Y Liang, A Dutta
PURPOSE: To measure the average glandular dose (AGD) of a 2D+3D breast imaging protocol using GE SenoClaire breast tomosynthesis system. METHODS: This study used a GE SenoClaire breast tomosynthesis unit, a Gammex ACR mammography accreditation phantom, 5 cm thick PMMA phantom, an Unfors RaySafe X2 mammography detector. The breast imaging protocol includes a regular 2D CC view and a 3D MLO view at 45 degree, using AUTO mode. Both ACR phantom and PMMA phantom were scanned under AUTO mode with 10 daN compression to obtain the techniques of 2D CC view, 3D MLO view, and 3D CC view...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047462/mo-fg-brc-00-joint-aapm-estro-symposium-advances-in-experimental-medical-physics
#17
Ross Berbeco, Dan Ionascu
Experimental research in medical physics has expanded the limits of our knowledge and provided novel imaging and therapy technologies for patients around the world. However, experimental efforts are challenging due to constraints in funding, space, time and other forms of institutional support. In this joint ESTRO-AAPM symposium, four exciting experimental projects from four different countries are highlighted. Each project is focused on a different aspect of radiation therapy. From the USA, we will hear about a new linear accelerator concept for more compact and efficient therapy devices...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047254/tu-d-209-01-dosimetry-of-diagnostic-work-up-mammography
#18
N Jallow, I Sechopoulos
PURPOSE: To investigate patient average glandular dose (AGD) characteristics of diagnostic mammography. METHODS: The techniques used to image 14420 patients who received diagnostic work up mammography from October 2008 to December 2014 at one academic hospital were retrospectively collected. The most common diagnostic views and the techniques used for each according to compressed breast thickness were determined. For all techniques, 1st half value layer and air kerma output per tube current-exposure time product were measured; then the incident air kerma for each acquisition was calculated...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046835/mo-fg-brc-02-low-z-switching-linear-accelerator-targets-new-options-for-image-guidance-and-dose-enhancement-in-radiotherapy
#19
J Robar
Experimental research in medical physics has expanded the limits of our knowledge and provided novel imaging and therapy technologies for patients around the world. However, experimental efforts are challenging due to constraints in funding, space, time and other forms of institutional support. In this joint ESTRO-AAPM symposium, four exciting experimental projects from four different countries are highlighted. Each project is focused on a different aspect of radiation therapy. From the USA, we will hear about a new linear accelerator concept for more compact and efficient therapy devices...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046808/mo-fg-brc-01-mr-guided-radiation-therapy-with-gadolinium-nanoparticles-from-chalkboard-to-first-clinical-trials
#20
L Sancey
Experimental research in medical physics has expanded the limits of our knowledge and provided novel imaging and therapy technologies for patients around the world. However, experimental efforts are challenging due to constraints in funding, space, time and other forms of institutional support. In this joint ESTRO-AAPM symposium, four exciting experimental projects from four different countries are highlighted. Each project is focused on a different aspect of radiation therapy. From the USA, we will hear about a new linear accelerator concept for more compact and efficient therapy devices...
June 2016: Medical Physics
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