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https://www.readbyqxmd.com/read/28918287/steroid-hormones-and-persistent-organic-pollutants-in-plasma-from-north-eastern-atlantic-pilot-whales
#1
Katrin S Hoydal, Bjarne Styrishave, Tomasz M Ciesielski, Robert J Letcher, Maria Dam, Bjørn M Jenssen
Persistent organic pollutants (POPs) are known to have endocrine disruptive effects, interfering with endogenous steroid hormones. The present study examined nine steroid hormones and their relationships with the concentrations of selected POPs in pilot whales (Globicephala melas) from the Faroe Islands, NE Atlantic. The different steroids were detected in 15 to all of the 26 individuals. High concentrations of progesterone (83.3-211.7pmol/g) and pregnenolone (PRE; 4.68-5.69pmol/g) were found in three adult females indicating that they were pregnant or ovulating...
September 14, 2017: Environmental Research
https://www.readbyqxmd.com/read/28917174/potential-effects-of-changes-in-climate-and-emissions-on-distribution-and-fate-of-perfluorooctane-sulfonate-in-the-bohai-rim-china
#2
Chao Su, Shuai Song, Yonglong Lu, Shijie Liu, John P Giesy, Deliang Chen, Alan Jenkins, Andrew J Sweetman, Baninla Yvette
Climate change and emissions rates of contaminants are expected to affect distribution and fate of Persistent Organic Pollutants (POPs) in the environment, however, studies on these combined factors are rare. In this study, Perfluorooctane Sulfonate (PFOS) is used as an example to assess how those two factors synthetically affect fate and disposition of POPs in the Bohai Rim of China by using the Berkeley-Trent-Urban-Rural (BETR-Urban-Rural) model. We set up three climate change scenarios and four emission scenarios to conduct the simulations...
September 13, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28915320/adipose-tissue-as-a-site-of-toxin-accumulation
#3
Erin Jackson, Robin Shoemaker, Nika Larian, Lisa Cassis
We examine the role of adipose tissue, typically considered an energy storage site, as a potential site of toxicant accumulation. Although the production of most persistent organic pollutants (POPs) was banned years ago, these toxicants persist in the environment due to their resistance to biodegradation and widespread distribution in various environmental forms (e.g., vapor, sediment, and water). As a result, human exposure to these toxicants is inevitable. Largely due to their lipophilicity, POPs bioaccumulate in adipose tissue, resulting in greater body burdens of these environmental toxicants with obesity...
September 12, 2017: Comprehensive Physiology
https://www.readbyqxmd.com/read/28914705/increasing-anteroposterior-genital-hiatus-widening-does-not-limit-apical-descent-for-prolapse-staging-during-valsalva-s-maneuver-effect-on-symptom-severity-and-surgical-decision-making
#4
Anna Guanzon, Michael Heit, Waseem Khoder
OBJECTIVE: Determine if anteroposterior genital hiatus (GH) widening obscures rather than facilitates signs and symptoms, inadvertently altering management decisions for women with pelvic organ prolapse (POP) during Valsalva's Maneuver, at a given total vaginal length (TVL). METHODS: We performed a retrospective cohort with nested cross-sectional study of patients who underwent POP surgery. Data from obstetric and gynecologic history, preoperative and postoperative physical examinations, and 20-item Pelvic Floor Distress Inventory (PFDI-20) and 7-item Pelvic Floor Impact Questionnaire (PFIQ-7) scores were extracted...
September 13, 2017: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/28914702/digitation-to-void-what-is-the-significance-of-this-symptom
#5
Ismael Ortega, Nishamini Subramaniam, Talia Friedman, Friyan Turel, Hans Peter Dietz
OBJECTIVE: Digitation to void is defined as the need to apply manual pressure on the perineum or the vagina to assist with voiding. It has been associated with prolapse; however, there is little objective data concerning this symptom. Our aim was to determine the correlation between digitation to void, symptoms and signs of pelvic organ prolapse (POP), and urodynamic data. METHODS: This was a retrospective study that included a total of 1174 patients seen at a tertiary urogynecological unit...
September 13, 2017: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/28914701/elevated-postvoid-residual-urine-volume-identifying-risk-factors-and-predicting-resolution-in-women-with-pelvic-organ-prolapse
#6
Amanda Ulrich, Patricia Davis, Paul Tulikangas, David M OʼSullivan, Katie Propst
OBJECTIVES: This study aims to identify risk factors for elevated preoperative postvoid residual (PVR) and persistently elevated postoperative PVR and to evaluate the resolution rate of elevated PVR urine volume in patients undergoing reconstructive surgery for pelvic organ prolapse (POP). METHODS: This was a retrospective cohort study comparing 50 women with elevated preoperative PVR (≥100 mL) and 50 women with normal PVR (<100 mL). Preoperative demographic, physical examination, urodynamic data, type of surgery performed, and postoperative trial of void data were collected...
September 13, 2017: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/28914338/the-uk-national-prolapse-survey-10%C3%A2-years-on
#7
Swati Jha, Alfred Cutner, Paul Moran
INTRODUCTION AND HYPOTHESIS: To assess trends in the surgical management of pelvic organ prolapse (POP) amongst UK practitioners and changes in practice since a previous similar survey. METHODS: An online questionnaire survey (Typeform Pro) was emailed to British Society of Urogynaecology (BSUG) members. They included urogynaecologists working in tertiary centres, gynaecologists with a designated special interest in urogynaecology and general gynaecologists. The questionnaire included case scenarios encompassing contentious issues in the surgical management of POP and was a revised version of the questionnaire used in the previous surveys...
September 15, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/28914337/obesity-how-much-does-it-matter-for-female-pelvic-organ-prolapse
#8
Natharnia Young, Ixora Kamisan Atan, Rodrigo Guzman Rojas, Hans Peter Dietz
INTRODUCTION AND HYPOTHESIS: The objective was to determine the association between body mass index (BMI) and symptoms and signs of female pelvic organ prolapse (POP). METHODS: An observational cross-sectional study of 964 archived datasets of women seen for symptoms and signs of lower urinary tract and pelvic organ dysfunction between September 2011 and February 2014 at a tertiary urogynaecology centre in Australia was carried out. An in-house standardised interview, the International Continence Society Pelvic Organ Prolapse Quantification (ICS POP-Q) and 4-D translabial ultrasound, followed by analysis of ultrasound volumes for pelvic organ descent and hiatal area on Valsalva, were performed, blinded against other data...
September 15, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/28914008/linearly-chirped-fiber-bragg-grating-response-to-thermal-gradient-from-bench-tests-to-the-real-time-assessment-during-in-vivo-laser-ablations-of-biological-tissue
#9
Paola Saccomandi, Ambra Varalda, Riccardo Gassino, Daniele Tosi, Carlo Massaroni, Michele A Caponero, Raoul Pop, Sanzhar Korganbayev, Guido Perrone, Michele Diana, Alberto Vallan, Guido Costamagna, Jacques Marescaux, Emiliano Schena
The response of a fiber optic sensor [linearly chirped fiber Bragg grating (LCFBG)] to a linear thermal gradient applied on its sensing length (i.e., 1.5 cm) has been investigated. After these bench tests, we assessed their feasibility for temperature monitoring during thermal tumor treatment. In particular, we performed experiments during ex vivo laser ablation (LA) in pig liver and in vivo thermal ablation in animal models (pigs). We investigated the following: (i) the relationship between the full width at half maximum of the LCFBG spectrum and the temperature difference among the extremities of the LCFBG and (ii) the relationship between the mean spectrum wavelength and the mean temperature acting on the LCFBG sensing area...
September 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/28913148/the-effect-of-pelvic-organ-prolapse-type-on-sexual-function-muscle-strength-and-pelvic-floor-symptoms-in-women-a-retrospective-study
#10
Nuriye Özengin, Hatice Çankaya, Elif Duygu, Muhammet Fatih Uysal, Yeşim Bakar
OBJECTIVE: This retrospective research was planned to investigate the effect of pelvic organ prolapse (POP) type on sexual function, muscle strength, and pelvic floor symptoms in symptomatic women. MATERIALS AND METHODS: Data on POP type and stages as assessed using the Pelvic Organ Prolapse-Quantification system of 721 women who presented to the women's health unit between 2009 and 2016 were collected retrospectively. POP types were recorded as asymptomatic, anterior, apical, and posterior compartment prolapses...
June 2017: Turk J Obstet Gynecol
https://www.readbyqxmd.com/read/28912451/unveiling-co2-heterogeneous-freezing-plumes-during-champagne-cork-popping
#11
Gérard Liger-Belair, Daniel Cordier, Jacques Honvault, Clara Cilindre
Cork popping from clear transparent bottles of champagne stored at different temperatures (namely, 6, 12, and 20 °C) was filmed through high-speed video imaging in the visible light spectrum. During the cork popping process, a plume mainly composed of gaseous CO2 with traces of water vapour freely expands out of the bottleneck through ambient air. Most interestingly, for the bottles stored at 20 °C, the characteristic grey-white cloud of fog classically observed above the bottlenecks of champagne stored at lower temperatures simply disappeared...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28911793/passive-air-sampling-of-polybrominated-diphenyl-ethers-in-new-delhi-kolkata-mumbai-and-chennai-levels-homologous-profiling-and-source-apportionment
#12
Paromita Chakraborty, Gan Zhang, Hairong Cheng, Prithiviraj Balasubramanian, Jun Li, Kevin C Jones
Several studies in the recent past reported new sources for industrial persistent organic pollutants (POPs) from metropolitan cities of India. To fill the data gap for atmospheric polybrominated diphenyl ethers (PBDEs), polyurethane foam disk passive air sampling (PUF-PAS) was conducted along urban-suburban-rural transects in four quadrilateral cities viz., New Delhi, Kolkata, Mumbai and Chennai from northern, eastern, western and southern India respectively. Average concentration of Σ8PBDEs in pg/m(3) for New Delhi, Kolkata, Mumbai and Chennai were 198, 135, 264 and 144 respectively...
September 11, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28911683/antibacterial-activity-and-interactions-of-plant-essential-oil-combinations-against-gram-positive-and-gram-negative-bacteria
#13
Cristina Anamaria Semeniuc, Carmen Rodica Pop, Ancuţa Mihaela Rotar
The aim of this study was to compare the antibacterial effects of several essential oils (EOs) alone and in combination against different Gram-positive and Gram-negative bacteria associated with food products. Parsley, lovage, basil, and thyme EOs, as well as their mixtures (1:1, v/v), were tested against Bacillus cereus, Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, and Salmonella typhimurium. The inhibitory effects ranged from strong (thyme EO against E. coli) to no inhibition (parsley EO against P...
April 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28910963/placental-transfer-of-persistent-organic-pollutants-and-feasibility-using-the-placenta-as-a-non-invasive-biomonitoring-matrix
#14
Yunsun Jeong, Sunggyu Lee, Sunmi Kim, Jeongim Park, Hai-Joong Kim, Gyuyeon Choi, Sooran Choi, Sungjoo Kim, Su Young Kim, Sungkyoon Kim, Kyungho Choi, Hyo-Bang Moon
The placenta is a crucial organ for the supply of oxygen and nutritional elements from mother to fetus. Several studies have reported evidence of the placental transfer of persistent organic pollutants (POPs). Despite the importance of prenatal exposure to POPs, the transport process of POPs via the human placenta is not well understood. To investigate the transport processes of these contaminants and to assess the feasibility of the placenta as a non-invasive biological matrix, we measured 19 polychlorinated biphenyls (PCBs), 18 organochlorine pesticides (OCPs), and 24 polybrominated diphenyl ethers (PBDEs) in placenta tissues...
September 10, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28910605/risk-factors-for-postoperative-pneumonia-after-microsurgery-for-vestibular-schwannoma
#15
Chenghong Wang, Tengfei Li, Shaozhou Tang, Yuekang Zhang
OBJECTIVES: Postoperative complications occurred in about 30% patients after vestibular schwannoma (VS) microsurgical excision. Although many specific complications have been extensively studied, postoperative pneumonia (POP) has received little attention. This study was designed to identify the risk factors for POP after microsurgery for VS. PATIENTS AND METHODS: Patients undergoing VS microsurgical resection (n=244) between December 2014 and November 2016 at West China Hospital of Sichuan University were retrospectively assessed for POP...
September 11, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28905670/a-model-to-facilitate-implementation-of-the-international-classification-of-functioning-disability-and-health-into-prosthetics-and-orthotics
#16
Gustav Jarl, Nerrolyn Ramstrand
BACKGROUND: The International Classification of Functioning, Disability and Health is a classification of human functioning and disability and is based on a biopsychosocial model of health. As such, International Classification of Functioning, Disability and Health seems suitable as a basis for constructing models defining the clinical P&O process. The aim was to use International Classification of Functioning, Disability and Health to facilitate development of such a model. Proposed model: A model, the Prosthetic and Orthotic Process (POP) model, is proposed...
September 1, 2017: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/28905184/energy-transfer-and-kinetics-in-mechanochemistry
#17
Zhiliang Chen, Shengyong Lu, Qiongjing Mao, Alfons Buekens, Yuting Wang, Jianhua Yan
Mechanochemistry (MC) exerts extraordinary degradation and decomposition effects on many chlorinated, brominated, and even fluorinated persistent organic pollutants (POPs). However, its application is still limited by inadequate study of its reaction kinetic aspects. In the present work, the ball motion and energy transfer in planetary ball mill are investigated in some detail. Almost all milling parameters are summarised in a single factor-total effective impact energy. Furthermore, the MC kinetic between calcium oxide/Al and hexachlorobenzene is well established and modelled...
September 13, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28901764/equilibrium-passive-sampling-of-pop-in-lipid-rich-and-lean-fish-tissue-quality-control-using-performance-reference-compounds
#18
Tatsiana P Rusina, Pernilla Carlsson, Branislav Vrana, Foppe Smedes
Passive sampling is widely used to measure levels of contaminants in various environmental matrices, including fish tissue. Equilibrium passive sampling (EPS) of persistent organic pollutants (POP) in fish tissue has been hitherto limited to application in lipid-rich tissue. We tested several exposure methods to extend EPS applicability to lean tissue. Thin-film polydimethylsiloxane (PDMS) passive samplers were exposed statically to intact fillet and fish homogenate and dynamically by rolling with cut fillet cubes...
September 13, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28900856/incidence-and-management-of-de-novo-lower-urinary-tract-symptoms-after-pelvic-organ-prolapse-repair
#19
REVIEW
Henry Tran, Doreen E Chung
PURPOSE OF REVIEW: Pelvic organ prolapse (POP) is a significant problem with many options for surgical correction. Following prolapse surgery, de novo lower urinary tract symptoms (LUTS) are not uncommon. We review the current literature on de novo lower urinary tract symptoms following POP repair and discuss the role of urodynamics in the evaluation of the prolapse patient. RECENT FINDINGS: Patients with occult stress urinary incontinence (SUI) appear to be at higher risk of developing de novo SUI after POP repair...
September 12, 2017: Current Urology Reports
https://www.readbyqxmd.com/read/28898957/persistent-organic-pollutants-in-krill-from-the-bellingshausen-south-scotia-and-weddell-seas
#20
Cristóbal J Galbán-Malagón, Gema Hernán, Esteban Abad, Jordi Dachs
Persistent organic pollutants (POPs) reach Antarctica through atmospheric transport, oceanic currents, and to minor extent, by migratory animals. The Southern Ocean is a net sink for many POPs, with a key contribution of the settling fluxes of POPs bound to organic matter (biological pump). However, little is known about POP transfer through the food web in the Southern Ocean and Antarctic waters, where krill is an important ecological node. In this study, we assessed the occurrence of polychlorinated dibenzo-p-dioxins and furans (PCDD/Fs), polybrominated diphenyl ethers (PBDEs), and polychlorinated biphenyls (PCBs) in Antarctic krill (Euphausia superba) from the Bellingshausen, South Scotia and Weddell Seas around the Antarctic Peninsula...
September 8, 2017: Science of the Total Environment
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