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https://www.readbyqxmd.com/read/27914350/phosphorus-flows-in-a-peri-urban-region-with-intensive-food-production-a-case-study
#1
S Bittman, S C Sheppard, D Poon, D E Hunt
Excess phosphorus (P) in peri-urban regions is an emerging issue, whereas there is global depletion of quality mined supplies of P. The flow of P across the landscape leading to regional surpluses and deficits is not well understood. We computed a regional P budget with internal P flows in a fairly discreet peri-urban region (Lower Fraser Valley, BC) with closely juxtaposed agricultural and non-agricultural urban ecosystems, in order to clarify the relationship between food production, food consumption and other activities involving use of P (e...
November 30, 2016: Journal of Environmental Management
https://www.readbyqxmd.com/read/27914207/demographic-history-of-the-trace-metal-hyperaccumulator-noccaea-caerulescens-j-presl-and-c-presl-f-k-mey-in-western-europe
#2
Cédric Gonneau, Nausicaa Noret, Cécile Godé, Hélène Frérot, Catherine Sirguey, Thibault Sterckeman, Maxime Pauwels
Noccaea caerulescens (Brassicaceae) is a major pseudometallophyte model for the investigation of the genetics and evolution of metal hyperaccumulation in plants. We studied the population genetics and demographic history of this species to advance the understanding of among-population differences in metal hyperaccumulation and tolerance abilities. Sampling of seven to 30 plants was carried out in 62 sites in Western Europe. Genotyping was done using a combination of new chloroplast and nuclear neutral markers...
December 3, 2016: Molecular Ecology
https://www.readbyqxmd.com/read/27914142/attitudes-regarding-hpv-vaccinations-of-children-among-mothers-with-adolescent-daughters-in-korea
#3
Kyong No Lee, Kylie Hae Jin Chang, Seong Sik Cho, Sung Ho Park, Sung Taek Park
The aim of this study, carried out before the beginning of human papillomavirus (HPV) vaccinations as a National Immunization Program (NIP) in Korea in 2016, is to assess the ranges of perceptions and personal experience and their influences on attitudes regarding HPV vaccinations of children, among mothers of adolescent (9-14 years of age) daughters in Korea. From November 2015 to February 2016, we distributed a written questionnaire to mothers who had daughters aged 9-14 years. The questionnaire consisted of several questions, related to knowledge of HPV, personal experiences of HPV vaccination, and attitudes toward HPV vaccinations of their adolescent daughters...
January 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/27913919/a-critical-overview-on-the-biological-and-molecular-features-of-red-and-processed-meat-in-colorectal-carcinogenesis
#4
REVIEW
Arunan Jeyakumar, Lakal Dissabandara, Vinod Gopalan
A recent investigation by the World Health Organisation (WHO) has found that the consumption of processed meat and potentially red meat promotes carcinogenesis and can increase the risk of colorectal cancer. This literature review aims to summarise both the red and processed meat molecules associated with colorectal carcinogenesis and investigate their relationship with the pathogenic process of colorectal cancer. Literature relating to the carcinogenic effect of red and processed meat molecules was critically reviewed...
December 2, 2016: Journal of Gastroenterology
https://www.readbyqxmd.com/read/27913861/cxcl12-expression-and-pd-l1-expression-serve-as-prognostic-biomarkers-in-hcc-and-are-induced-by-hypoxia
#5
Alexander Semaan, Dimo Dietrich, Dominik Bergheim, Jörn Dietrich, Jörg C Kalff, Vittorio Branchi, Hanno Matthaei, Glen Kristiansen, Hans-Peter Fischer, Diane Goltz
Anti-PD-1 treatment increases anti-tumour immune responses in animal models of hepatocellular carcinoma (HCC). Sorafenib, the mainstay of treatment of HCC patients, however, leads to tumour hypoxia and thereby abrogates the efficacy of anti-PD-1 treatment. This served as a rationale to implement CXCR4 inhibition as adjunct to sorafenib and anti-PD-1 treatment in murine HCC models. We studied the relationship between tumour hypoxia, PD-L1 and CXCL12 expression in human HCC, aiming to test the rationale for triple therapy combining sorafenib, PD-1 immune checkpoint inhibitors and CXCR4 inhibitors...
December 2, 2016: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/27913359/network-unfolding-map-by-vertex-edge-dynamics-modeling
#6
Filipe Alves Neto Verri, Paulo Roberto Urio, Liang Zhao
The emergence of collective dynamics in neural networks is a mechanism of the animal and human brain for information processing. In this paper, we develop a computational technique using distributed processing elements in a complex network, which are called particles, to solve semisupervised learning problems. Three actions govern the particles' dynamics: generation, walking, and absorption. Labeled vertices generate new particles that compete against rival particles for edge domination. Active particles randomly walk in the network until they are absorbed by either a rival vertex or an edge currently dominated by rival particles...
November 29, 2016: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/27913356/a-framework-for-integrating-multiple-biological-networks-to-predict-microrna-disease-associations
#7
Wei Peng, Wei Lan, Zeng Yu, Jianxin Wang, Yi Pan
MicroRNAs have close relationship with human diseases. Therefore, identifying disease related MicroRNAs plays an important role in disease diagnosis, prognosis and therapy. However, designing an effective computational method which can make good use of various biological resources and correctly predict the associations between MicroRNA and disease is still a big challenge. Previous researchers have pointed out that there are complex relationships among microRNAs, diseases and environment factors. There are inter-relationships between microRNAs, diseases or environment factors based on their functional similarity or phenotype similarity or chemical structure similarity and so on...
November 29, 2016: IEEE Transactions on Nanobioscience
https://www.readbyqxmd.com/read/27912797/helminth-infections-and-gut-microbiota-a-feline-perspective
#8
Ana M Duarte, Timothy P Jenkins, Maria S Latrofa, Alessio Giannelli, Elias Papadopoulos, Luís Madeira de Carvalho, Matthew J Nolan, Domenico Otranto, Cinzia Cantacessi
BACKGROUND: Investigations of the relationships between the gut microbiota and gastrointestinal parasitic nematodes are attracting growing interest by the scientific community, driven by the need to better understand the contribution of parasite-associated changes in the composition of the gut flora to both host malnutrition and immune modulation. These studies have however been carried out mainly in humans and experimental animals, while knowledge of the make-up of the gut commensal flora in presence or absence of infection by parasitic nematodes in domestic animals is limited...
December 3, 2016: Parasites & Vectors
https://www.readbyqxmd.com/read/27912196/nox-isoforms-in-the-development-of-abdominal-aortic-aneurysm
#9
Kin Lung Siu, Qiang Li, Yixuan Zhang, Jun Guo, Ji Youn Youn, Jie Du, Hua Cai
Oxidative stress plays an important role in the formation of abdominal aortic aneurysm (AAA), and we have recently established a causal role of uncoupled eNOS in this severe human disease. We have also shown that activation of NADPH oxidase (NOX) lies upstream of uncoupled eNOS. Therefore, identification of the specific NOX isoforms that are required for eNOS uncoupling and AAA formation would ultimately lead to novel therapies for AAA. In the present study, we used the Ang II infused hph-1 mice to examine the roles of NOX isoforms in the development of AAA...
November 19, 2016: Redox Biology
https://www.readbyqxmd.com/read/27912176/novel-designed-vmct1-analogs-with-increased-antimicrobial-activity
#10
Cibele Nicolaski Pedron, Marcelo Der Torossian Torres, Julia Aparecida da Silva Lima, Pedro Ismael Silva, Fernanda Dias Silva, Vani Xavier Oliveira
Antimicrobial peptides are biologically active molecules produced by a wide range of organisms as an essential component of the innate immune response. They have recently attracted great interest, since they have antimicrobial activity against a broad spectrum of microorganisms. VmCT1 is a cationic peptide from the venom of Vaejovis mexicanus smithi scorpions, which presents antibacterial activity and tends to helical structures. Its analogs were synthesized, characterized and the conformational studies were performed by circular dichroism...
November 24, 2016: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/27912029/how-to-establish-a-bioregenerative-life-support-system-for-long-term-crewed-missions-to-the-moon-or-mars
#11
Yuming Fu, Leyuan Li, Beizhen Xie, Chen Dong, Mingjuan Wang, Boyang Jia, Lingzhi Shao, Yingying Dong, Shengda Deng, Hui Liu, Guanghui Liu, Bojie Liu, Dawei Hu, Hong Liu
To conduct crewed simulation experiments of bioregenerative life support systems on the ground is a critical step for human life support in deep-space exploration. An artificial closed ecosystem named Lunar Palace 1 was built through integrating efficient higher plant cultivation, animal protein production, urine nitrogen recycling, and bioconversion of solid waste. Subsequently, a 105-day, multicrew, closed integrative bioregenerative life support systems experiment in Lunar Palace 1 was carried out from February through May 2014...
December 2, 2016: Astrobiology
https://www.readbyqxmd.com/read/27911865/mitochondrial-pyruvate-carrier-function-is-negatively-linked-to-warburg-phenotype-in-vitro-and-malignant-features-in-esophageal-squamous-cell-carcinomas
#12
Yaqing Li, Xiaoran Li, Quancheng Kan, Mingzhi Zhang, Xiaoli Li, Ruiping Xu, Junsheng Wang, Dandan Yu, Mariusz Adam Goscinski, Jian-Guo Wen, Jahn M Nesland, Zhenhe Suo
Aerobic glycolysis is one of the emerging hallmarks of cancer cells. In this study, we investigated the relationship between blocking mitochondrial pyruvate carrier (MPC) with MPC blocker UK5099 and the metabolic alteration as well as aggressive features of esophageal squamous carcinoma. It was found that blocking pyruvate transportation into mitochondria attenuated mitochondrial oxidative phosphorylation (OXPHOS) and triggered aerobic glycolysis, a feature of Warburg effect. In addition, the HIF-1α expression and ROS production were also activated upon UK5099 application...
November 30, 2016: Oncotarget
https://www.readbyqxmd.com/read/27911755/transformation-of-vestibular-signals-for-the-control-of-standing-in-humans
#13
Patrick A Forbes, Billy L Luu, H F Machiel Van der Loos, Elizabeth A Croft, J Timothy Inglis, Jean-Sébastien Blouin
: During standing balance, vestibular signals encode head movement and are transformed into coordinates that are relevant to maintaining upright posture of the whole body. This transformation must account for head-on-body orientation as well as the muscle actions generating the postural response. Here, we investigate whether this transformation is dependent upon a muscle's ability to stabilize the body along the direction of a vestibular disturbance. Subjects were braced on top of a robotic balance system that simulated the mechanics of standing while being exposed to an electrical vestibular stimulus that evoked a craniocentric vestibular error of head roll...
November 9, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27911668/association-of-5-hydroxymethylation-and-5-methylation-of-dna-cytosine-with-tissue-specific-gene-expression
#14
V K Chaithanya Ponnaluri, Kenneth C Ehrlich, Guoqiang Zhang, Michelle Lacey, Douglas Johnston, Sriharsa Pradhan, Melanie Ehrlich
Differentially methylated or hydroxymethylated regions (DMRs) in mammalian DNA are often associated with tissue-specific gene expression but the functional relationships are still being unraveled. To elucidate these relationships, we studied 16 human genes containing myogenic DMRs by analyzing profiles of their epigenetics and transcription and quantitatively assaying 5-hydroxymethylcytosine (5 hmC) and 5-methylcytosine (5 mC) at specific sites in these genes in skeletal muscle (SkM), myoblasts, heart, brain, and diverse other samples...
December 2, 2016: Epigenetics: Official Journal of the DNA Methylation Society
https://www.readbyqxmd.com/read/27911366/a-multimodal-imaging-and-stimulation-based-method-of-evaluating-connectivity-related-brain-excitability-in-patients-with-epilepsy
#15
Mouhsin M Shafi, Susan Whitfield-Gabrieli, Catherine J Chu, Alvaro Pascual-Leone, Bernard S Chang
Resting-state functional connectivity MRI (rs-fcMRI) is a technique that identifies connectivity between different brain regions based on correlations over time in the blood-oxygenation level dependent signal. rs-fcMRI has been applied extensively to identify abnormalities in brain connectivity in different neurologic and psychiatric diseases. However, the relationship among rs-fcMRI connectivity abnormalities, brain electrophysiology and disease state is unknown, in part because the causal significance of alterations in functional connectivity in disease pathophysiology has not been established...
November 13, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27911279/microrna-101-inhibits-proliferation-migration-and-invasion-of-human-glioblastoma-by-targeting-sox9
#16
Nan Liu, Lei Zhang, Zhen Wang, Yingduan Cheng, Pengxing Zhang, Xin Wang, Weihong Wen, Hongwei Yang, Hui Liu, Weilin Jin, Yongsheng Zhang, Yanyang Tu
Glioblastoma multiforme (GBM) is the most common primary malignant tumors originating in the brain parenchyma. At present, GBM patients have a poor prognosis despite the continuous progress in therapeutic technologies including surgery, radiotherapy, photodynamic therapy, and chemotherapy. Recent studies revealed that miR-101 was remarkably down-regulated in kinds of human cancers and was associated with aggressive tumor cell proliferation and stem cell self-renewal. Data also showed that miR-101 was down-regulated in primary glioma samples and cell lines, but the underlying molecular mechanism of the deregulation of miR-101 in glioma remained largely unknown...
November 30, 2016: Oncotarget
https://www.readbyqxmd.com/read/27911051/sylvatic-transmission-of-trypanosoma-cruzi-among-domestic-and-wildlife-reservoirs-in-texas-usa-a-review-of-the-historical-literature
#17
REVIEW
S M Gunter, E L Brown, R Gorchakov, K O Murray, M N Garcia
Chagas disease (Trypanosoma cruzi infection) is one of the most important neglected tropical diseases affecting the Americas. The transmission dynamic of this parasite is a complicated process that involves three genera of Triatominae subfamily and over 100 known mammalian reservoirs composed of domestic, peridomestic and wildlife species. Understanding the complex relationship between vector species and mammalian hosts is important for preventing transmission to humans. We performed a historical literature review to assess the disease burden in the Texas wildlife and domestic animal population...
December 2, 2016: Zoonoses and Public Health
https://www.readbyqxmd.com/read/27910877/a-comprehensive-map-of-molecular-drug-targets
#18
Rita Santos, Oleg Ursu, Anna Gaulton, A Patrícia Bento, Ramesh S Donadi, Cristian G Bologa, Anneli Karlsson, Bissan Al-Lazikani, Anne Hersey, Tudor I Oprea, John P Overington
The success of mechanism-based drug discovery depends on the definition of the drug target. This definition becomes even more important as we try to link drug response to genetic variation, understand stratified clinical efficacy and safety, rationalize the differences between drugs in the same therapeutic class and predict drug utility in patient subgroups. However, drug targets are often poorly defined in the literature, both for launched drugs and for potential therapeutic agents in discovery and development...
December 2, 2016: Nature Reviews. Drug Discovery
https://www.readbyqxmd.com/read/27910089/bilateral-endolymphatic-hydrops-in-a-patient-with-migraine-variant-without-vertigo-a-case-report
#19
Isabelle Y Liu, Akira Ishiyama, Ali R Sepahdari, Kevin Johnson, Gail Ishiyama
OBJECTIVE: To use modern high-resolution inner ear imaging modalities to evaluate for endolymphatic hydrops (EH) in a patient with migraine-associated fluctuating hearing loss without vertigo spells or dizziness. BACKGROUND: EH has been well described in patients with Meniere's disease on both human temporal bone studies and modern high-resolution imaging; however, there is no study to date, to our knowledge, that examines the presence of EH in a patient with migraine and bilateral hearing loss...
December 2, 2016: Headache
https://www.readbyqxmd.com/read/27909930/relationship-between-religious-belief-and-happiness-a-systematic-literature-review
#20
Mohd Ahsan Kabir Rizvi, Mohammad Zakir Hossain
Happiness is a feeling that is desired by every human being. To achieve happiness, human try various routes like, to gain financial superiority, fame, entertainment, assets and so on. But on the contrary, religiosity is claimed to be a technique to attain purpose in life, mental health, physical well-being and internal peace, which ultimately leads to happiness in life. This study analyses the studies conducted in last two decades toward understanding the relationship between religiousness and happiness. These studies have been organised in terms of the religions, geographic locations, scales and significance...
December 1, 2016: Journal of Religion and Health
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