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https://www.readbyqxmd.com/read/27913023/in-stream-metabolism-and-atmospheric-carbon-sequestration-in-a-groundwater-fed-karst-stream
#1
Junbing Pu, Jianhong Li, Mitra B Khadka, Jonathan B Martin, Tao Zhang, Shi Yu, Daoxian Yuan
Atmospheric carbon sequestered in karst systems through dissolution of carbonate minerals is considered to have no net effect on long-term regional and global carbon budgets because precipitation of dissolved carbonate minerals emits CO2 back to the atmosphere. Even though recent studies have implied that rapid kinetics of carbonate dissolution coupled with the aquatic photosynthetic uptake of dissolve inorganic carbon (DIC) could facilitate a stable atmospheric C sink in karst rivers and streams, little is known about the magnitudes and long-term stability of this C sink...
November 29, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27904661/a-novel-sphingosine-kinase-1-inhibitor-ski-5c-induces-cell-death-of-wilms-tumor-cells-in-vitro-and-in-vivo
#2
Zhi-Heng Li, Yan-Fang Tao, Li-Xiao Xu, He Zhao, Xiao-Lu Li, Fang Fang, Yi Wu, Jun Lu, Yan-Hong Li, Wei-Wei Du, Jun-Li Ren, Yi-Ping Li, Yun-Yun Xu, Xing Feng, Jian Wang, Wei-Qi He, Jian Pan
Sphingosine kinase 1 (SphK1) is over-expressed in many cancers and therefore serves as a biomarker for cancer prognosis. SKI-5C is a new SphK1 inhibitor, and until now its molecular function in Wilms' tumor cells remained unknown. Here, using CCK-8 and nude mice experiments we assessed cell growth in Wilms' tumor cell lines (SK-NEP-1 and G401) in vitro and in vivo. We demonstrated that SphK1 is highly expressed in SK-NEP-1 and G401 cells, and through annexin V/propidium iodide staining and flow cytometry analysis, we detected cell apoptosis...
2016: American Journal of Translational Research
https://www.readbyqxmd.com/read/27901398/discriminating-between-neuropathic-pain-and-sensory-hypersensitivity-using-the-chronic-pain-questions-cpq
#3
Karin S Coyne, Brooke M Currie, Sean Donevan, Joseph C Cappelleri, Rozelle Hegeman-Dingle, Lucy Abraham, Christine Thompson, Alesia Sadosky, Marina Brodsky
OBJECTIVE: The Chronic Pain Questions (CPQ) were developed for clinical use with the aim of supporting primary care physicians in the screening, assessment and monitoring of patients with chronic pain. The purpose of this study was to examine the ability of the CPQ to discriminate between patients with neuropathic pain (NeP) versus those with sensory hypersensitivity (SH). METHODS: Adult men and women with a diagnosis of a NeP or SH condition were recruited from 5 clinical sites across the United States...
November 30, 2016: Postgraduate Medicine
https://www.readbyqxmd.com/read/27896481/high-perineal-and-overall-frequency-of-staphylococcus-aureus-in-people-who-inject-drugs-compared-to-non-injectors
#4
Disa Dahlman, Farnaz Jalalvand, Marianne Alanko Blomé, Anders Håkansson, Håkan Janson, Susanne Quick, Anna C Nilsson
To investigate the prevalence, distribution, and colonization burden of Staphylococcus aureus (S. aureus) and MRSA in different body sites among people who inject drugs (PWID) and compare it to a control group consisting of non-injectors. In this cross-sectional survey, 49 active PWID from the needle exchange program (NEP) in Malmö, Sweden, and 60 non-injecting controls from an emergency psychiatric inpatient ward at Malmö Addiction Centre were tested for S. aureus (including MRSA) by culture, PCR, and MALDI-TOF...
November 28, 2016: Current Microbiology
https://www.readbyqxmd.com/read/27894721/vaccination-against-hepatitis-b-virus-among-people-who-inject-drugs-a-20year-experience-from-a-swedish-needle-exchange-program
#5
M Alanko Blomé, P Björkman, L Flamholc, H Jacobsson, A Widell
BACKGROUND: People who inject drugs (PWID) are at particular risk of hepatitis B virus (HBV) acquisition, but often have poor access or adherence to HBV vaccination. Vaccination against HBV has been offered at a major Swedish needle exchange program (NEP) since 1994. The aim of this study was to evaluate vaccine completion and response rates, and the effect of sequential booster doses to non-responders to the standard vaccination schedule. METHODS: PWID enrolled in the NEP 1994-2013, without serological markers for HBV at baseline (negative for HBsAg/anti-HBc/anti-HBs), were offered a three-dose standard intramuscular vaccination schedule (Engerix®-B, GSK, 20μg/mL, intended to be received at months 0, 1 and 6)...
November 25, 2016: Vaccine
https://www.readbyqxmd.com/read/27867723/all-optical-highly-sensitive-akinetic-sensor-for-ultrasound-detection-and-photoacoustic-imaging
#6
Stefan Preisser, Wolfgang Rohringer, Mengyang Liu, Christian Kollmann, Stefan Zotter, Balthasar Fischer, Wolfgang Drexler
A novel all-optical akinetic ultrasound sensor, consisting of a rigid, fiber-coupled Fabry-Pérot etalon with a transparent central opening is presented. The sensing principle relies exclusively on the detection of pressure-induced changes of the refractive index in the fluid filling the Fabry-Pérot cavity. This enables resonance-free, inherently linear signal detection over a broad bandwidth. We demonstrate that the sensor achieves a exceptionally low peak noise equivalent pressure (NEP) values of 2 Pa over a 20 MHz measurement bandwidth (without signal averaging), while maintaining a flat frequency response, and a detection bandwidth up to 22...
October 1, 2016: Biomedical Optics Express
https://www.readbyqxmd.com/read/27862669/association-between-nephrinuria-podocyturia-and-proteinuria-in-women-with-pre-eclampsia
#7
Itsuko Furuta, Tianyue Zhai, Satoshi Ishikawa, Takeshi Umazume, Kinuko Nakagawa, Takahiro Yamada, Mamoru Morikawa, Hisanori Minakami
AIM: Podocyte depletion in the kidney is associated with end-stage kidney disease (ESKD). Pre-eclampsia (PE) increases the risk of ESKD in later life. This study was performed to determine whether nephrinuria (soluble nephrin in the urine) is correlated with proteinuria and/or podocyturia (podocytes in the urine) in PE women. METHODS: Eighty-three urine samples, consisting of 45 and 38 samples from 27 normotensive and nine PE women, respectively, underwent simultaneous determination of nephrin, protein, and creatinine concentrations in the urine supernatant and quantitative analysis of podocyte-specific protein mRNA expression...
November 12, 2016: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/27846668/-eating-disorders-in-female-high-school-students-educational-and-migration-background-school-related-stress-and-performance-orientated-classes
#8
M Grüttner
Background: Many adolescents and young adults, especially young females, suffer from eating disorders or problematic nutrition behavior. Children and adolescents with migration background as well as from a lower social class are more likely to have eating disorders 1. Although schools are an important context in these age groups, there is a lack of scientific inquiry concerning the relationship between schooling and eating disorders. The present study investigates the relationship between performance-related stress at school and eating disorders while controlling for personnel and familial resources...
November 15, 2016: Das Gesundheitswesen
https://www.readbyqxmd.com/read/27835010/no-enclave-percolation-corresponds-to-holes-in-the-cluster-backbone
#9
Hao Hu, Robert M Ziff, Youjin Deng
The no-enclave percolation (NEP) model introduced recently by Sheinman et al. can be mapped to a problem of holes within a standard percolation backbone, and numerical measurements of such holes give the same size-distribution exponent τ=1.82(1) as found for the NEP model. An argument is given that τ=1+d_{B}/2≈1.822 for backbone holes, where d_{B} is the backbone dimension. On the other hand, a model of simple holes within a percolation cluster yields τ=1+d_{f}/2=187/96≈1.948, where d_{f} is the fractal dimension of the cluster, and this value is consistent with the experimental results of gel collapse of Sheinman et al...
October 28, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27834125/role-of-ageing-and-oxidative-stress-in-regulation-of-amyloid-degrading-enzymes-and-development-of-neurodegeneration
#10
Natalia N Nalivaeva, Anthony J Turner
The accumulation of cerebral amyloid β-peptide (Aβ) is a key precipitating factor for neuronal cell death in Alzheimer's disease (AD). However, brain Aβ levels are modifiable since there is a balance between its formation from the amyloid precursor protein (APP) and its removal by clearance mechanisms, which can be either through proteolysis or by protein binding and subsequent transport). Among the major enzymes degrading brain Aβ are several zinc-proteases: neprilysin (NEP), its homologues NEP2 and the endothelin converting enzymes (ECE-1 and -2) and also the insulin-degrading enzyme (IDE)...
November 10, 2016: Current Aging Science
https://www.readbyqxmd.com/read/27829994/the-characteristics-of-astrocyte-on-a%C3%AE-clearance-altered-in-alzheimer-s-disease-were-reversed-by-anti-inflammatory-agent-2-1-hydroxyl-4-oxocyclohexyl-ethyl-caffeate
#11
Rui-Xuan Liu, Cui Huang, David A Bennett, Honglin Li, Rui Wang
Astrocytes are closely related to the amyloid-β (Aβ) deposition in the brain and play crucial roles in Alzheimer's disease (AD) pathology. Meanwhile, inflammation in the CNS has been increasingly demonstrated as a prominent hallmark in AD. Our data from animal models and subjects with Alzheimer's disease (AD) showed GFAP immunoreactivity altered in different stage of AD and had a positive correlation with neprilysin (NEP), suggesting astrocytes might take a protective role in pathogenetic course of AD. Here, we investigate the role of astrocyte in the mechanism of Aβ removal...
2016: American Journal of Translational Research
https://www.readbyqxmd.com/read/27814373/involvement-of-an-arginine-triplet-in-m1-matrix-protein-interaction-with-membranes-and-in-m1-recruitment-into-virus-like-particles-of-the-influenza-a-h1n1-pdm09-virus
#12
Adeline Kerviel, Shantoshini Dash, Olivier Moncorgé, Baptiste Panthu, Jan Prchal, Didier Décimo, Théophile Ohlmann, Bruno Lina, Cyril Favard, Etienne Decroly, Michèle Ottmann, Philippe Roingeard, Delphine Muriaux
The influenza A(H1N1)pdm09 virus caused the first influenza pandemic of the 21st century. In this study, we wanted to decipher the role of conserved basic residues of the viral M1 matrix protein in virus assembly and release. M1 plays many roles in the influenza virus replication cycle. Specifically, it participates in viral particle assembly, can associate with the viral ribonucleoprotein complexes and can bind to the cell plasma membrane and/or the cytoplasmic tail of viral transmembrane proteins. M1 contains an N-terminal domain of 164 amino acids with two basic domains: the nuclear localization signal on helix 6 and an arginine triplet (R76/77/78) on helix 5...
2016: PloS One
https://www.readbyqxmd.com/read/27812223/environmental-values-and-attitudes-among-farmers-in-china-a-case-study-in-the-watershed-of-yuqiao-reservoir-of-tianjin-municipality-china
#13
Geir Inge Orderud, Rolf D Vogt
Failure to curb water pollution in China brings to the fore the issue of environmental values and attitudes among Chinese farmers. Applying the New Ecological Paradigm Scale this study finds that the pro-environmental value of New Ecological Paradigm (NEP) Worldview has a stronger standing among the studied Chinese farmers than the Dominant Social Paradigm (DSP) Worldview.
November 1, 2016: International Journal of Environmental Studies
https://www.readbyqxmd.com/read/27806703/neuropathic-pain-in-patients-with-rotator-cuff-tears
#14
Tatsuki Karasugi, Junji Ide, Toshio Kitamura, Nobukazu Okamoto, Takuya Tokunaga, Hiroshi Mizuta
BACKGROUND: Recent studies have confirmed the existence of neuropathic pain (NeP) components in patients with musculoskeletal disorders. However, the presence of NeP in patients with rotator cuff tears has not been investigated thus far. Therefore, we studied the prevalence of NeP and the prognostic factors for NeP in patients with rotator cuff tears. METHODS: Data were collected from 110 patients with rotator cuff tears, diagnosed by physical examination and magnetic resonance imaging, who attended an outpatient clinic between August 2013 and August 2014...
November 2, 2016: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/27803793/sacubitril-valsartan-in-heart-failure-latest-evidence-and-place-in-therapy
#15
REVIEW
Edgardo Kaplinsky
Despite significant therapeutic advances, patients with chronic heart failure (HF) remain at high risk for HF progression and death. Sacubitril/valsartan (previously known as LCZ696) is a first-in-class medicine that contains a neprilysin (NEP) inhibitor (sacubitril) and an angiotensin II (Ang-II) receptor blocker (valsartan). NEP is an endopeptidase that metabolizes different vasoactive peptides including natriuretic peptides, bradykinin and Ang-II. In consequence, its inhibition increases mainly the levels of both, natriuretic peptides (promoting diuresis, natriuresis and vasodilatation) and Ang-II whose effects are blocked by the angiotensin receptor blocker, valsartan (reducing vasoconstriction and aldosterone release)...
November 2016: Therapeutic Advances in Chronic Disease
https://www.readbyqxmd.com/read/27796865/hypertension-in-patients-with-heart-failure-with-reduced-ejection-fraction
#16
REVIEW
Massimo Volpe, Caterina Santolamazza, Giuliano Tocci
Hypertension (HTN) is a well-known health problem associated with considerable morbidity and mortality and it is an important risk factor for the development of heart failure (HF). These findings support the need for optimizing the antihypertensive strategies to prevent the progression to HF. Interestingly, the progression from HTN to HF, among other things, may be a consequence of inappropriate over-activation of the renin-angiotensin-aldosterone system (RAAS), sympathetic nervous system (SNS), and the natriuretic peptide system (NPS)...
December 2016: Current Cardiology Reports
https://www.readbyqxmd.com/read/27786597/targeting-cardiac-natriuretic-peptides-in-the-therapy-of-diabetes-and-obesity
#17
Cedric Moro
Atrial and B-type Natriuretic Peptides (NP) are cardiac hormones with potent cardiovascular and metabolic effects. They signal through the NPRA/cGMP system and are inactivated by a clearance receptor NPRC and neutral endopeptidases (NEP). Recombinant ANP and BNP are currently used as drug treatment for acute decompensated congestive heart failure. Recent literature indicate that a defective NP system is linked to obesity and predict the risk of type 2 diabetes (T2D). Areas covered: This article reviews recent epidemiological, clinical and preclinical evidences that NP system deficiency may be causal of obesity and T2D...
December 2016: Expert Opinion on Therapeutic Targets
https://www.readbyqxmd.com/read/27782815/the-complexity-of-human-infected-aiv-h5n6-isolated-from-china
#18
Zhijie Zhang, Rui Li, Lufang Jiang, Chenglong Xiong, Yue Chen, Genming Zhao, Qingwu Jiang
BACKGROUND: Novel avian influenza viruses (AIVs) of H7N9, H10N8, and H5N6 are currently circulating in China's poultry flocks, occasionally infecting human and other mammals. Human infected AIV H5N6 in China during 2014-2015 is believed to be a triple reassortant originated from H6N6 and two clades of H5 viruses. The current report suggests that its reassortment history is more complicated. METHODS: Genomes of human infected isolates of AIV H5N6 were searched from the NCBI Influenza Virus Sequence Database and the Global Initiative on Sharing Avian Influenza Data...
October 25, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27779088/workplace-nutrition-knowledge-questionnaire-psychometric-validation-and-application
#19
Simone C Guadagnin, Eduardo Y Nakano, Eliane S Dutra, Kênia M B de Carvalho, Marina K Ito
Workplace dietary intervention studies in low- and middle-income countries using psychometrically sound measures are scarce. This study aimed to validate a nutrition knowledge questionnaire (NQ) and its utility in evaluating the changes in knowledge among participants of a Nutrition Education Program (NEP) conducted at the workplace. A NQ was tested for construct validity, internal consistency and discriminant validity. It was applied in a NEP conducted at six workplaces, in order to evaluate the effect of an interactive or a lecture-based education programme on nutrition knowledge...
November 2016: British Journal of Nutrition
https://www.readbyqxmd.com/read/27771823/effect-of-nepafenac-on-the-foveal-profile-of-glaucomatous-patients-undergoing-phacoemulsification
#20
Elena Milla, Oana Stirbu, Isabel Jimenez Franco, Santiago J García Hernández, Jose Rios, Susana Duch
PURPOSE: Retrospective, pilot study to determine whether nepafenac treatment pre- and postcataract surgery in glaucoma patients using topical hypotensive agents minimized cystoid macular edema by comparing pre- and postsurgical foveal characteristics, as in some cases these agents cannot be withdrawn and, hypothetically, their inflammatory effect on the fovea could be neutralized by the addition of nepafenac. METHODS: Patients were divided into two subgroups depending on whether or not topical nepafenac was added to the surgical protocol (NEP = nepafenac group and nNEP = non nepafenac group)...
October 22, 2016: International Ophthalmology
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