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https://www.readbyqxmd.com/read/28734265/decreased-lung-function-with-mediation-of-blood-parameters-linked-to-e-waste-lead-and-cadmium-exposure-in-preschool-children
#1
Xiang Zeng, Xijin Xu, H Marike Boezen, Judith M Vonk, Weidong Wu, Xia Huo
Blood lead (Pb) and cadmium (Cd) levels have been associated with lower lung function in adults and smokers, but whether this also holds for children from electronic waste (e-waste) recycling areas is still unknown. To investigate the contribution of blood heavy metals and lung function levels, and the relationship among living area, the blood parameter levels, and the lung function levels, a total of 206 preschool children from Guiyu (exposed area), and Haojiang and Xiashan (reference areas) were recruited and required to undergo blood tests and lung function tests during the study period...
July 19, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28734247/seasonal-variation-in-water-uptake-patterns-of-three-plant-species-based-on-stable-isotopes-in-the-semi-arid-loess-plateau
#2
Jian Wang, Bojie Fu, Nan Lu, Li Zhang
Water is a limiting factor and significant driving force for ecosystem processes in arid and semi-arid areas. Knowledge of plant water uptake pattern is indispensable for understanding soil-plant interactions and species coexistence. The 'Grain for Green' project that started in 1999 in the Loess Plateau of China has led to large scale vegetation change. However, little is known about the water uptake patterns of the main plant species that inhabit in this region. In this study, the seasonal variations in water uptake patterns of three representative plant species, Stipa bungeana, Artemisia gmelinii and Vitex negundo, that are widely distributed in the semi-arid area of the Loess Plateau, were identified by using dual stable isotopes of δ(2)H and δ(18)O in plant and soil water coupled with a Bayesian mixing model MixSIAR...
July 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28734244/renal-denervation-attenuates-hypertension-and-renal-dysfunction-in-a-model-of-cardiovascular-and-renal-disease-which-is-associated-with-reduced-nadph-and-xanthine-oxidase-activity
#3
Maria Peleli, Peter Flacker, Zhengbing Zhuge, Cristina Gomez, Craig E Wheelock, A Erik G Persson, Mattias Carlstrom
Oxidative stress is considered a central pathophysiological event in cardiovascular disease, including hypertension. Early age reduction in renal mass is associated with hypertension and oxidative stress in later life, which is aggravated by increased salt intake. The aim of the present study was to examine if renal sympathetic denervation can exert blood pressure lowering effects in uninephrectomized (UNX) rats (3-week old) fed with high salt (HS, 4%; w/w) diet for 4 weeks. Moreover, we investigated if renal denervation is associated with changes in NADPH and xanthine oxidase-derived reactive oxygen species...
July 5, 2017: Redox Biology
https://www.readbyqxmd.com/read/28734240/decreased-levels-of-serum-fibroblast-growth-factor-2-in-children-with-autism-spectrum-disorder
#4
Erman Esnafoglu, Sema Nur Ayyıldız
The neurodevelopment and functioning of the central nervous system, and especially the cerebral cortex, have basic importance to understand neuropsychiatric disorders like autism. Fibroblast growth factor-2 (FGF-2) plays a very important role in the development and functioning of the cortex. FGF-2 is related to developmental processes in the central nervous system such as neurogenesis, migration, differentiation and survival. This study researched the serum FGF-2 levels in children with autism spectrum disorder (ASD)...
July 14, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28734217/emotional-arousal-and-recognition-memory-are-differentially-reflected-in-pupil-diameter-responses-during-emotional-memory-for-negative-events-in-younger-and-older-adults
#5
Dorothea Hämmerer, Alexandra Hopkins, Matthew J Betts, Anne Maaß, Ray J Dolan, Emrah Düzel
A better memory for negative emotional events is often attributed to a conjoint impact of increased arousal and noradrenergic modulation (NA). A decline in NA during aging is well documented but its impact on memory function during aging is unclear. Using pupil diameter (PD) as a proxy for NA, we examined age differences in memory for negative events in younger (18-30 years) and older (62-83 years) adults based on a segregation of early arousal to negative events, and later retrieval-related PD responses...
June 30, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28734212/treatment-of-refractory-contaminants-by-sludge-derived-biochar-persulfate-system-via-both-adsorption-and-advanced-oxidation-process
#6
Jia Wang, Zhuwei Liao, Jerosha Ifthikar, Lerong Shi, Yunan Du, Jingyi Zhu, Shuang Xi, Zhuqi Chen, Zhulei Chen
A novel strategy for the removal of refractory organic contaminants was realized through sludge-derived biochar (SDBC)/persulfate (PS) system via both adsorption and advanced oxidation process under ambient conditions. SDBC was prepared by one single step of slow pyrolysis of municipal sewage sludge, appeared a porous structure, and contained abundant oxygen-containing functional groups as well as amorphous Fe species. Large surface area and porous structure of SDBC benefitted the adsorption and enrichment of contaminants, while oxygen-containing functional groups and Fe species on the surface were considered as reactive components for the activation of PS...
July 17, 2017: Chemosphere
https://www.readbyqxmd.com/read/28734210/effects-analysis-of-substituent-characteristics-and-solvents-on-the-photodegradation-of-polybrominated-diphenyl-ethers
#7
Long Jiang, Youli Qiu, Yu Li
The ultraviolet spectra and electron transition information of 209 polybrominated diphenyl ethers (PBDEs) in gas were first calculated via time-dependent density functional theory using Gaussian 09 software. The main and second-order interactional effects of substituent characteristics on the photodegradation of PBDEs were then analysed using a full factorial experimental design. Solvent effects were considered to research the effect and promotion mechanism of solvent molecules on the photodegradation of PBDEs compared with that in gas...
July 14, 2017: Chemosphere
https://www.readbyqxmd.com/read/28734207/in-silico-designing-of-therapeutic-protein-enriched-with-branched-chain-amino-acids-for-the-dietary-treatment-of-chronic-liver-disease
#8
Sunil L, Prasanna Vasu
Leucine, isoleucine, and valine are three essential branched-chain amino acids (BCAA) account for 40-45% of total essential amino acids. BCAA stimulates protein synthesis primarily in skeletal muscles, and it can directly transport to circulatory blood stream bypassing the liver. Hence, a protein enriched with BCAA is an important therapeutic target for the dietary treatment of chronic liver disease. The present study is to design a synthetic protein enriched with BCAA and the challenge is to maximize the BCAA content, keeping the balanced ratio of leucine, isoleucine, valine - 2: 1: 1...
July 12, 2017: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/28734197/life-impact-of-caregiving-for-severe-childhood-epilepsy-results-of-expert-panels-and-caregiver-focus-groups
#9
Mark P Jensen, Kendra S Liljenquist, Fraser Bocell, Arnold R Gammaitoni, Carey R Aron, Bradley S Galer, Dagmar Amtmann
Severe epilepsy in children and young adults can significantly affect the lives of their caregivers. However, the lack of a reliable and valid measure of caregiver impact has limited our understanding of the scope and correlates of this impact, as well as our ability to measure the effects of treatments that could lessen it. The purpose of this study was to facilitate focus groups and interviews with an international group of clinician experts and caregivers to identify the most important domains that should be assessed in a measure of caregiver impact...
July 19, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28734187/proximal-femoral-nail-antirotation-versus-hemiarthroplasty-in-the-treatment-of-senile-intertrochanteric-fractures-case-report
#10
Xiangping Luo, Shengmao He, Dingshi Zeng, Lijun Lin, Qi Li
BACKGROUND: Primary hemiarthroplasty was recommended by some surgeons as the preferred choice in treating unstable senile intertrochanteric fractures with osteoporosis. However, many studies reported that proximal femoral nail antirotation (PFNA) currently was as an optimal implant for the treatment of different type of intertrochanteric fractures. Which method is better for treating senile intertrochanteric fractures remains controversial due to the insufficient clinical evidences. METHODS: We reviewed all consecutive senile intertrochanteric fractures treated with PFNA or cemented hemiarthroplasty at our institution between July 2010 and March 2015...
July 11, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28734180/bottom-up-assembly-of-salivary-gland-microtissues-for-assessing-myoepithelial-cell-function
#11
Tugba Ozdemir, Padma Pradeepa Srinivasan, Daniel R Zakheim, Daniel A Harrington, Robert L Witt, Mary C Farach-Carson, Xinqiao Jia, Swati Pradhan-Bhatt
Myoepithelial cells are flat, stellate cells present in exocrine tissues including the salivary glands. While myoepithelial cells have been studied extensively in mammary and lacrimal gland tissues, less is known of the function of myoepithelial cells derived from human salivary glands. Several groups have isolated tumorigenic myoepithelial cells from cancer specimens, however, only one report has demonstrated isolation of normal human salivary myoepithelial cells needed for use in salivary gland tissue engineering applications...
July 14, 2017: Biomaterials
https://www.readbyqxmd.com/read/28734179/computational-analysis-for-the-determination-of-deleterious-nssnps-in-human-mthfd1-gene
#12
Mansi Desai, J B Chauhan
Single nucleotide polymorphisms (SNPs) are the most common genetic polymorphisms and play a major role in many inherited diseases. Methylenetetrahydrofolate dehydrogenase 1 (MTHFD1) is one of the enzymes involved in folate metabolism. In the present study, the functional and structural consequences of nsSNPs of human MTHFD1 gene was analyzed using various computational tools like SIFT, PolyPhen2, PANTHER, PROVEAN, SNAP2, nsSNPAnalyzer, PhD-SNP, SNPs&GO, I-Mutant, MuPro, ConSurf, InterPro, NCBI Conserved Domain Search tool, ModPred, SPARKS-X, RAMPAGE, FT Site and PyMol...
July 11, 2017: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/28734178/subcortical-surface-shape-in-youth-at-familial-high-risk-for-schizophrenia
#13
Kathryn Hill, Nicolas Bolo, Suraj Sarvode Mothi, Paulo Lizano, Synthia Guimond, Neeraj Tandon, Elena Molokotos, Matcheri Keshavan
Abnormalities in the subcortical brain regions that support cognitive functions have been reported in schizophrenia. Relatives of those with schizophrenia often present with psychosis-like traits (schizotypy) and similar cognition as those with schizophrenia. To evaluate the relationships between subcortical structure, schizotypy, and cognitive function, we assessed shape and volume of the hippocampus, amygdala and thalamus in untreated youth at familial high risk for schizophrenia (HRSZ). The sample consisted of 66 HRSZ and 69 age-matched healthy controls (HC)...
July 14, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28734162/extraction-and-in-vitro-screening-of-potential-acetylcholinesterase-inhibitors-from-the-leaves-of-panax-japonicus
#14
Sainan Li, Chengyu Liu, Chunming Liu, Yuchi Zhang
Ultrafiltration liquid chromatography-mass spectrometry (UFLC-MS) is an efficient method that can be applied to rapidly screen and identify ligands for acetylcholinesterase (AChE) from the leaves of Panax japonicus. Using this method, we identified 5 major compounds, chikusetsusaponins V, Ib, IV, IVa, and IVa ethyl ester, as potent AChE inhibitors, which were assessed for anti-Alzheimer disease activity using the PC12 cell model. A continuous online method, which consisted of microwave-assisted extraction, a solvent concentration tank, and centrifugal partition chromatography (MAE-SCT-CPC), was newly developed for scaled up production of these compounds with high purity and efficiency...
July 12, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28734156/a-novel-hypoxia-response-element-regulates-oxygen-related-repression-of-tissue-factor-pathway-inhibitor-in-the-breast-cancer-cell-line-mcf-7
#15
Xue Yan Cui, Grethe Skretting, Mari Tinholt, Benedicte Stavik, Anders Erik Astrup Dahm, Kristine Kleivi Sahlberg, Sandip Kanse, Nina Iversen, Per Morten Sandset
BACKGROUND: Hypoxia is one of the most pervasive physiological stresses in solid tumors. We have previously demonstrated that tissue factor (TF) pathway inhibitor (TFPI) expression was transcriptionally repressed by the activation of hypoxia inducible factor (HIF)-1α under hypoxic conditions. However, the role of HIF-2α, also known as endothelial PAS domain-containing protein 1 (EPAS1), on TFPI expression remains unclear. AIM: To explore the role of HIF-2α/EPAS1 in the regulation of TFPI expression under hypoxia in breast cancer cells...
July 14, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28734150/growing-platinum-ruthenium-tin-ternary-alloy-nanoparticles-on-reduced-graphene-oxide-for-strong-ligand-effect-toward-enhanced-ethanol-oxidation-reaction
#16
Qing Qing Xia, Lian Ying Zhang, Zhi Liang Zhao, Chang Ming Li
Uniform Pt1Ru0.5Sn0.5 ternary alloy nanoparticles are in situ deposited on reduced graphene oxide (Pt1Ru0.5Sn0.5-RGO) through its functional groups and defects as nucleation sites to greatly electrocatalyze ethanol oxidation reaction for much higher mass current densities, larger apparent specific current densities and better stability than commercial Pt-C catalyst (Pt-C(commer)). Mechanistic studies indicate that the excellent electrocatalytic activity and anti-poisoning are resulted from a strong ligand effect of the ternary alloy components, in which the charge transfer is boosted while decreasing the density of states close to the Fermi level of Pt to reduce bond energy between Pt and CO-like adsorbates for greatly improved anti-poisoning ability...
June 30, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28734138/ghrelin-plasma-concentration-does-not-covary-with-energy-demand-in-adult-laying-hens
#17
A Höhne, L Schrader, S Weigend, S Petow
The peptide hormone ghrelin is suggested to be involved in food intake regulation in young growing chicken. Whether ghrelin is involved in the regulation of energetic balance associated with laying performance in adult laying hens was studied by use of 4 chicken lines that differ in laying performance and phylogeny (4 lines; 16 hens per line). As housing conditions are also known to affect energy demand, half of the hens per line were housed in single cages and the other half of hens were maintained in a floor housing system...
June 29, 2017: Domestic Animal Endocrinology
https://www.readbyqxmd.com/read/28734134/the-role-of-maternal-elaborative-structure-and-control-in-children-s-memory-and-suggestibility-for-a-past-event
#18
Gabrielle F Principe, Jacqueline Trumbull, Grace Gardner, Elizabeth Van Horn, Abigail M Dean
In this investigation, preschool-aged children experienced a staged event about which their mothers received misinformation suggesting that their children witnessed an activity that did not occur. Later, mothers were asked to talk about this event with their children. Consistent with previous research, mothers' provision of structure (defined as elaborative questions and statements) and degree of control (defined in terms of functional control of conversational turns) emerged as separate dimensions of maternal memory sharing style...
July 19, 2017: Journal of Experimental Child Psychology
https://www.readbyqxmd.com/read/28734131/changes-in-health-related-quality-of-life-in-older-candidates-waiting-for-kidney-transplantation
#19
Kjersti Lønning, Karsten Midtvedt, Tomm Bernklev, Cathrine Brunborg, Marit Helen Andersen, Nanna von der Lippe, Anna V Reisaeter, Pål-Dag Line, Anders Hartmann, Kristian Heldal
AIM: There is limited available knowledge regarding health-related quality of life (HRQoL) in older patients with chronic kidney disease. We aimed to describe HRQoL in renal transplant candidates 65 years or older at transplant acceptance, and during the first year on the waiting list.. METHODS: A nationwide prospective observational study in Norway was conducted. HRQoL was evaluated at baseline (wait listing) and after 6 and 12 months using the patient self-reported Kidney Disease and Quality of Life Short form version 1...
July 22, 2017: Nephrology
https://www.readbyqxmd.com/read/28734130/right-lobe-living-donors-ages-55-and-older-in-liver-transplantation
#20
Seong Hoon Kim, Eung Chang Lee, Jae Ryong Shim, Sang Jae Park
Insufficient is the evidence for safe use of elderly donors in adult-to-adult living donor liver transplantation (LDLT). The aim of this study was to evaluate the outcomes of right lobe LDLT by donor age (≥55 vs. <55 years). All living donors who underwent right hepatectomy at the authors' institution between March 2008 and December 2015 were divided into 2 groups: group A with an age ≥ 55 and group B with an age < 55. The selection criteria for elderly donor were preservation of middle hepatic vein, remnant liver volume ≥30%, and no or mild fatty liver...
July 22, 2017: Liver Transplantation
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