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https://www.readbyqxmd.com/read/29793206/effects-on-the-hepatic-transcriptome-of-chicken-embryos-in-ovo-exposed-to-phenobarbital
#1
Jiahua Guo, Shohei Ito, Hoa Thanh Nguyen, Kimika Yamamoto, Hisato Iwata
This work aimed at evaluating the toxic effects of in ovo exposure to phenobarbital (PB) and unveiling the mode of action by transcriptome analysis in the embryonic liver of a model avian species, chicken (Gallus gallus). Embryos were initially treated with saline or 1 μg PB /g egg at Hamburger Hamilton Stage (HHS) 1 (1st day), followed by 20 days of incubation to HHS 46. At 21st day, chicks that pipped successfully were euthanized and dissected for assessing the PB caused effects on phenotypes and the liver transcriptome in both genders...
May 21, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29793203/chemical-speciation-and-risk-assessment-of-cadmium-in-soils-around-a-typical-coal-mining-area-of-china
#2
Siwei Cheng, Guijian Liu, Chuncai Zhou, Ruoyu Sun
The distribution characteristics of Cadmium (Cd) fractions in soils around a coal mining area of Huaibei coalfield were investigated, with the aim to assess its ecological risk. The total Cd concentrations in soils ranged from 0.05 to 0.87 mg/kg. The high percentage of phyto-available Cd (58%) when redox or base-acid equilibria changed. Soil pH was found to be a crucial factor affecting soil Cd fraction, and carbonate-bound Cd can be significantly affected by both organic matter and pH of soils. The static ecological evaluation models, including potential ecological risk index (PERI), geo-accumulation index (Igeo ) and risk assessment code (RAC), revealed a moderate soil Cd contamination and prensented high Cd exposure risk in studied soils...
May 21, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29793200/influence-of-auxochrome-group-in-disperse-dyes-bearing-azo-groups-as-chromophore-center-in-the-biotransformation-and-molecular-docking-prediction-by-reductase-enzyme-implications-and-assessment-for-environmental-toxicity-of-xenobiotics
#3
Jefferson Honorio Franco, Bianca F da Silva, Elisangela Franciscon G Dias, Alexandre A de Castro, Teodorico C Ramalho, Maria Valnice Boldrin Zanoni
Synthetic azo dyes have increasingly become a matter of great concern as a result of the genotoxic and mutagenic potential of the products derived from azo dye biotransformation. This work evaluates the manner in which reducing enzymes produced by Escherichia coli (E. coli) act on three disperse dyes bearing azo groups, namely Disperse Red 73 (DR 73), Disperse Red 78 (DR 78), and Disperse Red 167 (DR 167). UV-Vis spectrophotometry, high-performance liquid chromatography with diode array detector (HPLC-DAD), and liquid chromatography mass spectrometry (LC-MS/MS) were applied towards the identification of the main products...
May 21, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29793192/how-did-older-adults-respond-to-challenges-after-an-earthquake-results-from-a-qualitative-study-in-iran
#4
Shokoufeh Ahmadi, Hamidreza Khankeh, Robab Sahaf, Asghar Dalvandi, Seyed Ali Hosseini, Fardin Alipour
OBJECTIVES: In many areas, natural disasters are a major challenge for life and property of people. Earthquake is one of the most devastating natural disasters. This study aimed to explore how older adults responded to challenges after the earthquake in Iran. METHODS: This study was based on qualitative analysis. Data were collected through in-depth and semi-structured interviews. 29 participants including 18 older adult survivors of the earthquake-stricken areas, four lay caregivers, and three health professionals in disasters, one social worker, two relief worker and one disaster psychologist were interviewed...
May 17, 2018: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/29793191/development-and-validation-of-a-prediction-model-for-functional-decline-in-older-medical-inpatients
#5
Toshihiko Takada, Shingo Fukuma, Yosuke Yamamoto, Yukio Tsugihashi, Hiroyuki Nagano, Michio Hayashi, Jun Miyashita, Teruhisa Azuma, Shunichi Fukuhara
OBJECTIVE: To prevent functional decline in older inpatients, identification of high-risk patients is crucial. The aim of this study was to develop and validate a prediction model to assess the risk of functional decline in older medical inpatients. METHODS: In this retrospective cohort study, patients ≥65 years admitted acutely to medical wards were included. The healthcare database of 246 acute care hospitals (n = 229,913) was used for derivation, and two acute care hospitals (n = 1767 and 5443, respectively) were used for validation...
May 17, 2018: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/29793178/nrf2-p-glycoprotein-axis-is-associated-with-clinicopathological-characteristics-in-colorectal-cancer
#6
Mohammad Reza Sadeghi, Farhad Jeddi, Narges Soozangar, Mohammad Hossein Somi, Masoud Shirmohamadi, Vahid Khaze, Nasser Samadi
Colorectal cancer (CRC) is the fourth leading cause of cancer-related death worldwide. Activation of ABCB1 gene and its main product, P-glycoprotein, is the common reason for chemoresistance. The nuclear factor-erythroid 2-related factor2 (Nrf2) is directly regulated by Kelch like ECH-associated protein1 (Keap1). In addition, Nrf2 is a key transcriptional factor that regulates efflux transporters, including P-gp. The aim of this study was to investigate the expression levels of Nrf2, Keap1 and ABCB1 in the biopsy samples and their association with clinicopathological features in CRC patients...
May 21, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29793176/non-ldl-dyslipidemia-is-prevalent-in-the-young-and-determined-by-lifestyle-factors-and-age-the-lifelines-cohort
#7
Jeroen K de Vries, Jan W Balder, Michelle J Pena, Petra Denig, Andries J Smit
BACKGROUND AND AIMS: Non-LDL dyslipidemia (NLD) confers cardiovascular risk, and prevalence rates appear to be high in elderly populations. Small cohorts have identified several lifestyle, anthropometric, and medical factors associated with NLD. We aimed to assess sex- and age-specific prevalence of NLD in a contemporary population cohort (n = 167 729), and to identify independent determinants of NLD, focusing on lifestyle, anthropometric, and medical factors. METHODS: The prevalence of NLD was assessed per 10-year age intervals in adults without cardiovascular disease not using lipid-modifying drugs from the Dutch LifeLines cohort...
May 21, 2018: Atherosclerosis
https://www.readbyqxmd.com/read/29793161/exposure-of-microcystis-aeruginosa-to-hydrogen-peroxide-and-titanium-dioxide-under-visible-light-conditions-modeling-the-impact-of-hydrogen-peroxide-and-hydroxyl-radical-on-cell-rupture-and-microcystin-degradation
#8
Che-Wei Chang, Xiangchen Huo, Tsair-Fuh Lin
The aims of this study are to evaluate, under visible light conditions, the ability of H2 O2 and TiO2 to produce OH, their quantitative impacts on the cell integrity of Microcystis, and the subsequent release and degradation of microcystins (MCs). A sequential reaction model was developed, including one sub-model to simulate the rupture kinetics for cell integrity of Microcystis, and another to describe the release and degradation of MCs. For cell rupture, the dual-oxidant Delayed Chick-Watson model (DCWM) and dual-oxidant Hom model (HM) were first proposed and developed, giving excellent simulation results of cell rupture kinetics...
May 14, 2018: Water Research
https://www.readbyqxmd.com/read/29793159/impacts-of-groundwater-management-on-energy-resources-and-greenhouse-gas-emissions-in-california
#9
Thomas P Hendrickson, Maya Bruguera
California faces significant energy and water infrastructure planning challenges in response to a changing climate. Immediately following the most severe recorded drought, the state experienced one of its wettest water years in recorded history. Despite the recent severe wet weather, much of the state's critical groundwater systems have not recovered from the drought. The recent Sustainable Groundwater Management Act (SGMA) aims to eliminate future depletion risks, but may force California basins to seek alternative water sources by limiting groundwater withdrawals during droughts...
May 16, 2018: Water Research
https://www.readbyqxmd.com/read/29793158/botulinum-toxin-type-a-affects-mechanics-of-non-injected-antagonistic-rat-muscles
#10
Filiz Ateş, Can A Yucesoy
Botulinum toxin type A (BTX-A) effects on the mechanics of non-injected antagonistic muscles are unknown. The aim was to test the following hypotheses in a rat model: BTX-A injected into gastrocnemius medialis (GM) and lateralis (GL) (1) decreases forces of the antagonistic tibialis anterior (TA) and extensor digitorum longus (EDL), (2) reduces length range of force exertion and (3) increases passive forces of the TA, and (4) changes inter-antagonistic and inter-synergistic epimuscular myofascial force transmission (EMFT)...
May 17, 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29793155/lessons-from-mosquitoes-painless-piercing
#11
Dev Gurera, Bharat Bhushan, Navin Kumar
Arthropods are the largest group of the living organisms. They attack other organisms by biting, stinging, or piercing and sucking. Among various medically important arthropods, which feed on living hosts, mosquitoes' piercing spread viruses which have been reported to cause the highest number of deaths annually. The primary cause of the deaths is malaria, which is spread by infected mosquitoes' piercing. This study aims at elucidating lessons from mosquitoes' painless piercing. Mosquitoes pierce using their fascicle, which is a bundle of coherently functioning six stylets...
May 18, 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29793149/educational-and-emotional-health-outcomes-in-adolescence-following-maltreatment-in-early-childhood-a-population-based-study-of-protective-factors
#12
Nisreen Khambati, Liam Mahedy, Jon Heron, Alan Emond
Although childhood maltreatment is associated with long-term impairment, some children function well despite this adversity. This study aimed to identify the key protective factors for good educational attainment and positive emotional health in adolescents who experienced maltreatment in early childhood. Data were analyzed from the Avon Longitudinal Study of Parents and Children, a large UK prospective cohort study. The sample was defined by maternally reported exposure to physical or emotional maltreatment by a parent prior to 5 years...
May 21, 2018: Child Abuse & Neglect
https://www.readbyqxmd.com/read/29793139/the-use-of-low-intensity-pulsed-ultrasound-in-treating-delayed-union-of-fifth-metatarsal-fractures
#13
Kar Hao Teoh, Robert Whitham, Jenny F Wong, Kartik Hariharan
BACKGROUND: There are no studies looking at the success rate of low-intensity pulsed ultrasound (LIPUS) in fifth metatarsal fracture delayed unions to our knowledge. The aim of this study is to investigate the use of LIPUS treatment for delayed union of fifth metatarsal fractures. METHODS: A retrospective review of patients who were treated with LIPUS following a delayed union of fifth metatarsal fracture was conducted over a three-year period. RESULTS: There were thirty patients (9 males, 21 females) in this cohort...
January 31, 2018: Foot
https://www.readbyqxmd.com/read/29793136/effects-of-gestational-hypertension-and-pre-eclampsia-in-mrna-expression-of-fibrinolysis-genes-in-primary-cultured-human-umbilical-vein-endothelial-cells
#14
Irais Poblete-Naredo, Yury Rodríguez-Yáñez, Rogelio O Corona-Núñez, Stuart González-Monroy, Juan E Salinas, Arnulfo Albores
Hypertension disorders (HD) and pre-eclampsia (PRE) are leading causes of maternal deaths worldwide. PRE is associated with vascular endothelial dysfunction and with deregulation of the fibrinolysis pathway genes. Fibrinolysis is the fibrin clot hydrolysis process catalyzed by plasmin, a proteolytic enzyme formed from plasminogen. Plasminogen is cleaved by tissue-type (tPA) and urokinase-type (uPA) activators and inhibited by the plasminogen activator inhibitors type-1 (PAI-1) and type-2 (PAI-2). The whole process maintains blood hemostasis...
May 17, 2018: Thrombosis Research
https://www.readbyqxmd.com/read/29793134/voxel-based-automated-detection-of-focal-cortical-dysplasia-lesions-using-diffusion-tensor-imaging-and-t2-weighted-mri-data
#15
Yanming Wang, Yawen Zhou, Huijuan Wang, Jin Cui, Benedictor Alexander Nguchu, Xufei Zhang, Bensheng Qiu, Xiaoxiao Wang, Mingwang Zhu
The aim of this study was to automatically detect focal cortical dysplasia (FCD) lesions in patients with extratemporal lobe epilepsy by relying on diffusion tensor imaging (DTI) and T2-weighted magnetic resonance imaging (MRI) data. We implemented an automated classifier using voxel-based multimodal features to identify gray and white matter abnormalities of FCD in patient cohorts. In addition to the commonly used T2-weighted image intensity feature, DTI-based features were also utilized. A Gaussian processes for machine learning (GPML) classifier was tested on 12 patients with FCD (8 with histologically confirmed FCD) scanned at 1...
May 21, 2018: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/29793125/assessment-of-cam-morphology-of-the-hip-with-ultra-sound-imaging-by-physical-therapists-is-reliable-and-valid
#16
Liliane Mandema, Igor Tak, Brigitte Mooij, Ruud Groeneweg, Eric Bakker, Peter van Veldhoven
BACKGROUND: Femoroacetabular impingement syndrome is considered present when a combination of clinical symptoms, signs and morphological features of the hip co-exist. Imaging is increasingly popular in primary health care settings with physical therapists performing ultrasound (US). OBJECTIVE: The aim of this study was to assess the diagnostic accuracy and inter-rater reliability of ultrasound in determining presence of cam morphology. DESIGN: A concurrent validity and inter-rater reliability study...
April 14, 2018: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29793124/how-to-manage-patellofemoral-pain-understanding-the-multifactorial-nature-and-treatment-options
#17
Simon Lack, Bradley Neal, Danilo De Oliveira Silva, Christian Barton
Patellofemoral pain (PFP) is one of the most prevalent conditions within sports medicine, orthopaedic and general practice settings. Long-term treatment outcomes are poor, with estimates that more than 50% of people with the condition will report symptoms beyond 5 years following diagnosis. Additionally, emerging evidence indicates that PFP may be on a continuum with patellofemoral osteoarthritis. Consensus of world leading clinicians and academics highlights the potential benefit of delivering tailored interventions, specific to an individual's needs, to improve patient outcome...
April 12, 2018: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29793122/intra-and-interrater-reliability-of-the-lumbar-locked-thoracic-rotation-test-in-competitive-swimmers-ages-10-through-18-years
#18
Stef Feijen, Kevin Kuppens, Angela Tate, Isabel Baert, Thomas Struyf, Filip Struyf
OBJECTIVES: Measuring thoracic spine mobility can be of interest to competitive swimmers as it has been associated with shoulder girdle function and scapular position in subjects with and without shoulder pain. At present, no reliability data of thoracic spine mobility measurements are available in the swimming population. This study aims to evaluate the within-session intra- and interrater reliability of the "lumbar-locked rotation test" for thoracic spine rotation in competitive swimmers aged 10 to 18 years...
April 17, 2018: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29793115/estimating-chemical-ecotoxicity-in-eu-ecolabel-and-in-eu-product-environmental-footprint
#19
Erwan Saouter, An De Schryver, Rana Pant, Serenella Sala
The EU Commission Ecolabel and the Product and Environmental Footprint (PEF) aim at promoting the development and consumption of greener products. The product aquatic toxicity score from these 2 methods may lead in some circumstances to opposite conclusions. Although this could be interpreted as an inconsistency, the score should not be compared to each other but used in a complementary way. In short, CDV provided a "full" product formula aquatic toxicity score, even if some chemicals may never reach or persist in freshwater ecosystems...
May 21, 2018: Environment International
https://www.readbyqxmd.com/read/29793112/3d-printed-membrane-as-an-alternative-to-amniotic-membrane-for-ocular-surface-conjunctival-defect-reconstruction-an-in-vitro-in-vivo-study
#20
Shima Dehghani, Morteza Rasoulianboroujeni, Hamed Ghasemi, Saeed Heidari Keshel, Zohreh Nozarian, Mohammad Naser Hashemian, Mehran Zarei-Ghanavati, Golshan Latifi, Reza Ghaffari, Zhanfeng Cui, Hua Ye, Lobat Tayebi
BACKGROUND: The aim of this study was to evaluate the surgical handling and clinical applicability of a specific 3D-printed membrane design fabricated using a gelatin, elastin and sodium hyaluronate blend for conjunctival reconstruction and compare it with amniotic membrane (AM), which is normally used in such surgeries. METHODS: 3D printing technique was employed to fabricate the membrane based on gradient design. Prior to printing, rheometry was employed to optimize the ink composition...
May 11, 2018: Biomaterials
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