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https://www.readbyqxmd.com/read/27918944/groundwater-nitrate-pollution-and-human-health-risk-assessment-by-using-hhra-model-in-an-agricultural-area-ne-china
#1
Yuanzheng Zhai, Xiaobing Zhao, Yanguo Teng, Xiao Li, Junjun Zhang, Jin Wu, Rui Zuo
In order to learn the pollution circumstance of groundwater nitrate detailedly in Songnen Plain of Northeast China and estimate its potential risk to human health of local residents, a total of 389 groundwater samples were collected in 2014 and studied from residential areas and public water supply wells in 11 cities and counties in southeastern of Songnen Plain. The analysis results showed that the spatial distributions of main chemical components in groundwater had great variations with statistical concentrations in the order of TDS> HCO3> Ca> NO3> Cl> Na> SO4> Mg> K> NH4> NO2...
December 1, 2016: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/27907063/evaluation-of-focal-liver-reaction-after-proton-beam-therapy-for-hepatocellular-carcinoma-examined-using-gd-eob-dtpa-enhanced-hepatic-magnetic-resonance-imaging
#2
Shigeyuki Takamatsu, Kazutaka Yamamoto, Yoshikazu Maeda, Mariko Kawamura, Satoshi Shibata, Yoshitaka Sato, Kazuki Terashima, Yasuhiro Shimizu, Yuji Tameshige, Makoto Sasaki, Satoko Asahi, Tamaki Kondou, Satoshi Kobayashi, Osamu Matsui, Toshifumi Gabata
BACKGROUND: Proton beam therapy (PBT) achieves good local control for hepatocellular carcinoma (HCC), and toxicity tends to be lower than for photon radiotherapy. Focal liver parenchymal damage in radiotherapy is described as the focal liver reaction (FLR); the threshold doses (TDs) for FLR in the background liver have been analyzed in stereotactic ablative body radiotherapy and brachytherapy. To develop a safer approach for PBT, both TD and liver volume changes are considered clinically important in predicting the extent of damage before treatment, and subsequently in reducing background liver damage...
2016: PloS One
https://www.readbyqxmd.com/read/27898988/lipid-accumulation-product-lap-as-an-index-of-metabolic-and-hormonal-disorders-in-aging-men
#3
I Rotter, A Rył, A Szylińska, W Pawlukowska, A Lubkowska, M Laszczyńska
Lipid accumulation product (LAP) is an index used for evaluating lipid overaccumulation in adults. Our study aimed at assessing associations between LAP and metabolic syndrome (MetS) and its components, age-related testosterone deficiency syndrome (TDS), low-density cholesterol (LDL), as well as HOMA-IR (insulin resistance ratio), insulin level in non-diabetics and total testosterone (TT), estradiol E2, dehydroepiandrosterone sulphate (DHEAs) and sex hormone-binding globulin (SHBG) in aging men.313 men aged 50-75 were surveyed with regard to the prevalence of diabetes (T2DM) and hypertension (HT)...
November 29, 2016: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/27885905/facilitating-terminal-discharge-fulfilling-the-hospitalised-patient-s-wish-for-home-death-in-the-final-hours
#4
Yung Ying Tan, Zhi Zhen Xu, Grace Sy Pang, Limin Qu, Yi Xu, Ai Min Zhang, Patricia Sh Neo
BACKGROUND: Terminal discharge (TD) is the rapid discharge of a hospitalised patient when death is imminent. Its time-limited nature makes it challenging, particularly for ward nurses. AIM: To report the development of a structured TD framework, and determine if the framework can expedite TD processes and improve nurses' experience in conducting TDs. METHODS: A 3-phase audit was carried out in a Singapore hospital. The baseline and post intervention audits evaluated the time taken for TD, incidence of prescription errors, continuity of care, and timeliness of equipment arrangement...
November 2, 2016: International Journal of Palliative Nursing
https://www.readbyqxmd.com/read/27880787/seasonal-and-spatial-environmental-influence-on-opisthorchis-viverrini-intermediate-hosts-abundance-and-distribution-insights-on-transmission-dynamics-and-sustainable-control
#5
Christina Sunyoung Kim, Pierre Echaubard, Apiporn Suwannatrai, Sasithorn Kaewkes, Bruce A Wilcox, Banchob Sripa
BACKGROUND: Opisthorchis viverrini (Ov) is a complex-life-cycle trematode affecting 10 million people in SEA (Southeast Asia). Human infection occurs when infected cyprinid fish are consumed raw or undercooked. Ov requires three hosts and presents two free-living parasitic stages. As a consequence Ov transmission and infection in intermediate and human hosts are strongly mediated by environmental factors and understanding how environmental variability influences intermediate host abundance is critical...
November 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27876656/postural-sway-balance-confidence-and-fear-of-falling-in-women-with-knee-osteoarthritis-in-comparison-to-matched-controls
#6
Marcelo Taglietti, Laís Faganello Dela Bela, Josilainne Marcelino Dias, Alexandre Roberto Marcondes Pelegrinelli, Jéssyca Fernandes Nogueira, João Pedro Batista Júnior, Rodrigo Gustavo da Silva Carvalho, Joseph Gerard McVeigh, Ligia Maria Facci, Felipe Arruda Moura, Jefferson Rosa Cardoso
BACKGROUND: Osteoarthritis (OA) is a chronic degenerative disease that commonly affects the knee joints. Individuals over 65 years with knee OA have a greater risk of falls. However, there has be limited examination of the parameters of postural sway (increased time, speed and postural sway area (center of pressure area (CoP)), and OA of the knee. OBJECTIVES: Primary: to determine whether the CoP variables discriminate between patients with knee OA and matched healthy volunteers, and to correlate the CoP variables with the Activities-Specific Balance Confidence Scale (ABC) and Falls Self-Efficacy Scale (FES); Secondary: to compare the CoP of the older women with OA with a control group in bipedal support condition with eyes opened and closed...
November 19, 2016: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/27870862/problematic-peer-functioning-in-girls-with-adhd-a-systematic-literature-review
#7
Francien M Kok, Yvonne Groen, Anselm B M Fuermaier, Oliver Tucha
OBJECTIVE: Children with attention deficit hyperactivity disorder (ADHD) experience many peer interaction problems and are at risk of peer rejection and victimisation. Although many studies have investigated problematic peer functioning in children with ADHD, this research has predominantly focused on boys and studies investigating girls are scant. Those studies that did examine girls, often used a male comparison sample, disregarding the inherent gender differences between girls and boys...
2016: PloS One
https://www.readbyqxmd.com/read/27866361/hydrogeochemical-characterization-of-the-thermal-springs-in-northeastern-of-los-cabos-block-baja-california-sur-m%C3%A3-xico
#8
Pablo Hernández-Morales, Jobst Wurl
The existence of hot springs in the northeastern part of Los Cabos Baja California Sur (BCS), is known from pre-Hispanic times, but their hydrochemical composition had not been previously described. Several springs are located within the watershed of Santiago, and the objective of this study was to define the hydrogeochemical composition of the thermal springs and to characterize the geothermal reservoir. A total of 16 water samples were taken in 11 geothermal manifestations under dry (June 2014) and humid (March 2015) conditions...
November 19, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27827555/uk-dietary-exposure-to-pcdd-fs-pcbs-pbdd-fs-pbbs-and-pbdes-comparison-of-results-from-24-h-duplicate-diets-and-total-diet-studies
#9
Lindsay Bramwell, David Mortimer, Martin Rose, Alwyn Fernandes, Stuart Harrad, Tanja Pless-Mulloli
Chemicals in food are monitored to check for compliance with regulatory limits and to evaluate trends in dietary exposures, among other reasons. This study compared two different methods for estimating human dietary exposure to lipophilic persistent organic pollutants (POPs) during 2011/12: (1) the 2012 Total Diet Study (TDS) conducted by the UK Food Standards Agency (FSA) and (2) a 24-h duplicate diet (DD) study of 20 adults from the North East of England. The equivalence of the two approaches was assessed; anything less than an order of magnitude could be considered reasonable and within three-fold (equivalent to 0...
December 1, 2016: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/27827287/-domperidone-to-promote-lactation
#10
N van Paassen, A M van der Starre, L M Hanff, S C Yap, T Roorda Wierenga, M J Vermeulen
- Breast milk is the best diet for all newborns, especially premature newborns.- In case of insufficient production of breast milk, feeding and extraction techniques should be optimized first, preferably supported by a lactation consultant. When supportive measures fail, domperidone to promote milk production can be considered.- The risk of side effects in newborns is negligible. The risk of maternal arrhythmias associated with QTc prolongation is low as long as domperidone is prescribed in low doses (10 mg tds)...
2016: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/27824112/determination-of-plane-stress-state-using-terahertz-time-domain-spectroscopy
#11
Zhiyong Wang, Kai Kang, Shibin Wang, Lin'an Li, Ningning Xu, Jiaguang Han, Mingxia He, Liang Wu, Weili Zhang
THz wave has been increasingly applied in engineering practice. One of its outstanding advantages is the penetrability through certain optically opaque materials, whose interior properties could be therefore obtained. In this report, we develop an experimental method to determine the plane stress state of optically opaque materials based on the stress-optical law using terahertz time-domain spectroscopy (THz-TDS). In this method, two polarizers are combined into the conventional THz-TDS system to sense and adjust the polarization state of THz waves and a theoretical model is established to describe the relationship between phase delay of the received THz wave and the plane stress applied on the specimen...
November 8, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27817145/fish-scales-as-a-non-lethal-tool-of-the-toxicity-of-wastewater-from-the-river-chenab
#12
Tayyaba Sultana, Amir Siddique, Salma Sultana, Shahid Mahboob, Khalid Al-Ghanim, Z Ahmed
Water pollution is gradually increasing in natural waters through anthropogenic activities. This study aimed to use fish scales as a bio-indicator of pollution, along with water quality parameters, and the assessment and detection of selected heavy metals in water samples collected from the River Chenab, including the Chakbandi drain that gathers domestic sewage waste and industrial effluents from Faisalabad and deposits it into this freshwater body. All water quality parameters (pH, total dissolved solids (TDS), total suspended solids (TSS), salinity, conductivity, biochemical oxygen demand (BOD), chemical oxygen demand (COD), phenols and sulphates) and concentrations of selected heavy metals (Cd, Cu, Mn, Pb and Cr) were found to be considerably higher than permissible limits as defined by the WHO, and therefore capable of causing ill health effects in aquatic organisms...
November 5, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27817144/assessment-of-arsenic-fluoride-bacteria-and-other-contaminants-in-drinking-water-sources-for-rural-communities-of-kasur-and-other-districts-in-punjab-pakistan
#13
Nasima Arshad, Saiqa Imran
High levels of arsenic contamination in drinking water of two villages, Badarpur and Ibrahimabad of district Kasur, central Punjab, Pakistan is reported first time in present studies. Groundwater quality situation was found to be impaired when samples of different rural areas of district Kasur were monitored according to Pakistan Standards and Quality Control Authority (PSQCA) for all significant water quality constituents and analyzed for trace elements, physico-chemical, and microbiological parameters. Out of 35water sources, 97 % were found unsafe and only 3 % of the sources were within safe limits...
November 5, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27815434/research-on-the-terahertz-absorption-spectra-of-histidine-enantiomer-l-and-its-racemic-compound-dl
#14
Tao Zhou, Yidong Wu, Juncheng Cao, Liangliang Zou, Jie Yuan, Zhenwei Yao, Gongjie Xu
Terahertz time-domain spectroscopy (THz-TDS) is used to investigate the absorption spectra of polycrystalline L- and DL-histidine in the frequency range of 10-100 cm(-1) The spectra exhibit distinct differences in peak frequencies between the enantiomer (L-histidine) and racemic compound (DL-histidine). The observed spectral differences are attributed to the intermolecular interactions. With the density function theory (DFT) method, the frequencies of vibrational modes of L-histidine and DL-histidine in the THz range are calculated and well assigned according to the measured spectra...
November 4, 2016: Applied Spectroscopy
https://www.readbyqxmd.com/read/27812006/high-quality-aln-epitaxy-on-nano-patterned-sapphire-substrates-prepared-by-nano-imprint-lithography
#15
Lisheng Zhang, Fujun Xu, Jiaming Wang, Chenguang He, Weiwei Guo, Mingxing Wang, Bowen Sheng, Lin Lu, Zhixin Qin, Xinqiang Wang, Bo Shen
We report epitaxial growth of AlN films with atomically flat surface on nano-patterned sapphire substrates (NPSS) prepared by nano-imprint lithography. The crystalline quality can be greatly improved by using the optimized 1-μm-period NPSS. The X-ray diffraction ω-scan full width at half maximum values for (0002) and (102) reflections are 171 and 205 arcsec, respectively. The optimized NPSS contribute to eliminating almost entirely the threading dislocations (TDs) originating from the AlN/sapphire interface via bending the dislocations by image force from the void sidewalls before coalescence...
November 4, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27811446/the-analgesic-effect-of-diclofenac-sodium-administered-via-the-epidural-route-in-an-experimental-visceral-pain-model
#16
O Kilci, T Demir, M Günbey, C Kara, D Bayazit, D Ornek, M Baydar
PURPOSE: The aim of this study was to investigate the characteristics of the analgesic effect of diclofenac sodium injected epidurally in single or repeated doses and whether tolerance develops in long-term use. MATERIALS AND METHODS: A total of 30 rats were included in the study. The rats were anesthetized using intraperitoneal ketamine hydrochloride and an epidural catheter (EC) was inserted at the level of 13th dorsal thoraco-lumbar vertebrae (T13). Eleven rats were excluded from the study...
November 2016: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/27807597/analysis-of-the-interplay-between-all-trans-retinoic-acid-and-histone-deacetylase-inhibitors-in-leukemic-cells
#17
Katrin Noack, Nisintha Mahendrarajah, Dorle Hennig, Luisa Schmidt, Florian Grebien, Dagmar Hildebrand, Markus Christmann, Bernd Kaina, Andreas Sellmer, Siavosh Mahboobi, Katharina Kubatzky, Thorsten Heinzel, Oliver H Krämer
The treatment of acute promyelocytic leukemia (APL) with all-trans retinoic acid (ATRA) induces granulocytic differentiation. This process renders APL cells resistant to cytotoxic chemotherapies. Epigenetic regulators of the histone deacetylases (HDACs) family, which comprise four classes (I-IV), critically control the development and progression of APL. We set out to clarify the parameters that determine the interaction between ATRA and histone deacetylase inhibitors (HDACi). Our assays included drugs against class I HDACs (MS-275, VPA, and FK228), pan-HDACi (LBH589, SAHA), and the novel HDAC6-selective compound Marbostat-100...
November 2, 2016: Archives of Toxicology
https://www.readbyqxmd.com/read/27779196/thyroid-dysfunction-in-primary-biliary-cholangitis-a-comparative-study-at-two-european-centers
#18
Annarosa Floreani, Chiara Mangini, Anna Reig, Irene Franceschet, Nora Cazzagon, Lisa Perini, Llorenç Caballería, Silvia Cocchio, Vincenzo Baldo, Albert Parés
OBJECTIVES: Primary biliary cholangitis (PBC) is often associated with other autoimmune diseases, but little is known about the influence of thyroid disease (TD) on the natural history of PBC. Our aim is to analyze the association between PBC and TD, and the latter's impact on the natural history of PBC at two European centers. METHODS: The study involved 921 PBC patients enrolled between 1975 and 2015 in Padova (376 patients) and Barcelona (545 patients), with a mean follow-up of 126...
October 25, 2016: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/27769478/simultaneous-separation-of-polar-and-non-polar-mixtures-by-capillary-hplc-based-on-an-ostadecylsilane-and-taurine-derivatized-silica-continuously-packed-column
#19
Yi Zhang, Yan Zhang, Guan Wang, Wujuan Chen, Pingang He, Qingjiang Wang
A capillary column was prepared by continuously packing ostadecylsilane (ODS) and taurine derivatized silica (TDS) in one column without interface. This continuously packing chromatography (CPC) column is easy to operate, has good stability and shows simultaneously separation of both polar and non-polar compounds. The simultaneous separation of a series of complex samples with highly hydrophobic components (benzene, toluene, ethylbenzene, and PAHs) and highly hydrophilic components (biogenic amines, bases and nucleosides) using this CPC method was investigated...
December 1, 2016: Talanta
https://www.readbyqxmd.com/read/27757130/brain-derived-neurotrophic-factor-gene-val66met-polymorphism-is-a-risk-factor-for-attention-deficit-hyperactivity-disorder-in-a-turkish-sample
#20
Onder Ozturk, Burge Kabukcu Basay, Ahmet Buber, Omer Basay, Huseyin Alacam, Ali Bacanlı, Şenay Görücü Yılmaz, Mehmet Emin Erdal, Hasan Herken, Eyup Sabri Ercan
OBJECTIVE: Attention-deficit hyperactivity disorder (ADHD) is a neurodevelopmental disorder that negatively affects different areas of life. We aimed to evaluate the associations between the Val66Met polymorphism of brain-derived neurotrophic factor (BDNF) and ADHD and to assess the effect of the BDNF polymorphism on the neurocognitive profile and clinical symptomatology in ADHD. METHODS: Two hundred one ADHD cases and 99 typically developing subjects (TD) between the ages of 8 and 15 years were involved in the study...
September 2016: Psychiatry Investigation
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