keyword
MENU ▼
Read by QxMD icon Read
search

High Value

keyword
https://www.readbyqxmd.com/read/28934710/calcium-availability-but-not-its-content-modulates-metal-toxicity-in-scenedesmus-quadricauda
#1
Jozef Kováčik, Sławomir Dresler
Impact of calcium nutrition (pre-culture on solid medium with standard or elevated Ca dose, i. e. 0.17 and 4.40mM marked as low and high Ca) on acute metal toxicity (Cd, Mn and Pb, 24h of exposure to 10µM) in freshwater green alga Scenedesmus quadricauda was studied. Surprisingly, Ca content differed only slightly between low and high Ca samples and applied metals rather suppressed its amount. Na content was higher in metal-exposed high Ca samples, indicating that Ca/Na ratio may affect accumulation of metals...
September 18, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28934699/pseudopotential-calculations-of-alsb-under-pressure
#2
H Algarni, O A Al-Hagan, N Bouarissa, M A Khan, T F Alhuwaymel
The dependence on hydrostatic pressure of the electronic and optical properties of zinc-blende AlSb semiconducting material in the pressure range of 0-20kbar has been reported using a pseudopotential approach. At zero pressure, our findings showed that the electron and heavy hole effective masses are 0.11 and 0.38m0, respectively. Moreover, our results yielded values of 3.3289 and 11.08 for refractive index and high frequency dielectric constant, respectively. These results are found to be in good accord with experiment...
September 14, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28934694/development-and-implementation-of-a-pass-fail-field-friendly-method-for-detecting-sildenafil-in-suspect-pharmaceutical-tablets-using-a-handheld-raman-spectrometer-and-silver-colloids
#3
Adam Lanzarotta, Lisa Lorenz, JaCinta S Batson, Cheryl Flurer
A simple, fast, sensitive and effective pass/fail field-friendly method has been developed for detecting sildenafil in suspect Viagra and unapproved tablets using handheld Raman spectrometers and silver colloids. The method involves dissolving a portion of a tablet in water followed by filtration and addition of silver colloids, resulting in a solution that can be measured directly through a glass vial. Over one hundred counterfeit Viagra and unapproved tablets were examined on three different devices during the method development phase of the study...
September 8, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28934687/the-role-of-thiocyanate-in-enhancing-the-process-of-sulfite-reducing-cr-vi-by-inhibiting-the-formation-of-reactive-oxygen-species
#4
Bo Jiang, Shuaishuai Xin, Yijie Liu, Haihong He, Lin Li, Yizhen Tang, Siyi Luo, Xuejun Bi
The reductive detoxification of Cr(VI) by sulfite is known as the prevailing strategy and can be successfully implemented for the treatment of Cr(VI)-contaminated waters. However, this method inevitably faces the challenges of excessive consumption of sulfite due to the generations of highly oxidative OH and SO4(-) during the process of sulfite reducing Cr(VI). In this study, we find that a small quantity of thiocyanate (SCN) can catalytically enhance the process efficiency of Cr(VI) reduction by sulfite and effectively prevent the excessive consumption of sulfite...
September 12, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28934670/conflicting-interactions-of-apolipoprotein-a-and-high-density-lipoprotein-cholesterol-with-microvascular-complications-of-type-2-diabetes
#5
Zahra Aryan, Mohsen Afarideh, Alireza Ghajar, Sadaf Esteghamati, Alireza Esteghamati, Manouchehr Nakhjavani
AIMS: This study is amid at investigating the associations, and interactions of serum lipid biomarkers with microvascular complications of type 2 diabetes (T2D). METHODS: A nested case-control study was conducted within an ongoing prospective study on patients with T2D. Microvascular complications of T2D including diabetic neuropathy, diabetic retinopathy and diabetic nephropathy were investigated. A total of 444 cases with at least one of the microvascular complications of T2D and 439 age- and gender-matched controls free of any of the chronic microvascular complications of T2D were included...
September 1, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28934645/graphene-a-new-activator-of-sodium-persulfate-for-the-advanced-oxidation-of-parabens-in-water
#6
Leonidas Bekris, Zacharias Frontistis, George Trakakis, Lamprini Sygellou, Costas Galiotis, Dionissios Mantzavinos
Graphene was successfully employed as a catalyst for the activation of sodium persulfate, towards the effective degradation of propylparaben, an emerging micro-pollutant, representative of the parabens family. A novel process is proposed which utilizes a commercial graphene nano-powder as the catalyst and sodium persulfate as the oxidizing agent. It was found that over 95% of micro-pollutant degradation occurs within 15 min of reaction time. The effects of catalyst loading (75 mg/L to 1 g/L), sodium persulfate (SPS) concentration (10 mg/L to 1 g/L), initial solution pH (3-9) and initial paraben concentration (0...
September 13, 2017: Water Research
https://www.readbyqxmd.com/read/28934394/microrna-455-3p-as-a-potential-peripheral-biomarker-for-alzheimer-s-disease
#7
Subodh Kumar, Murali Vijayan, P Hemachandra Reddy
The purpose of our study was to identify microRNAs (miRNAs) as early detectable peripheral biomarkers in Alzheimer's disease (AD). To achieve our objective, we assessed miRNAs in serum samples from AD patients and Mild cognitive impairment (MCI) subjects relative to healthy controls. We used Affymetrix microarray analysis and validated differentially expressed miRNAs using qRT-PCR. We further validated miRNA data using AD postmortem brains, amyloid precursor protein transgenic mice and AD cell lines. We identified a gradual upregulation of four miRNAs: miR-455-3p, miR-4668-5p, miR-3613-3p and miR-4674...
October 1, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28934333/supermarket-purchase-contributes-to-nutrition-related-non-communicable-diseases-in-urban-kenya
#8
Kathrin M Demmler, Stephan Klasen, Jonathan M Nzuma, Matin Qaim
BACKGROUND: While undernutrition and related infectious diseases are still pervasive in many developing countries, the prevalence of non-communicable diseases (NCD), typically associated with high body mass index (BMI), is rapidly rising. The fast spread of supermarkets and related shifts in diets were identified as possible factors contributing to overweight and obesity in developing countries. Potential effects of supermarkets on people's health have not been analyzed up till now. OBJECTIVE: This study investigates the effects of purchasing food in supermarkets on people's BMI, as well as on health indicators such as fasting blood glucose (FBG), blood pressure (BP), and the metabolic syndrome...
2017: PloS One
https://www.readbyqxmd.com/read/28934305/the-prognostic-value-of-interleukin-17-in-lung-cancer-a-systematic-review-with-meta-analysis-based-on-chinese-patients
#9
Xiao-Fei Wang, Yi-Tong Zhu, Jia-Jia Wang, Da-Xiong Zeng, Chuan-Yong Mu, Yan-Bin Chen, Wei Lei, Ye-Han Zhu, Jian-An Huang
BACKGROUND: Interleukin-17 (IL-17) plays an important role in cancer progression. Previous studies remained controversial regarding the correlation between IL-17 expression and lung cancer (LC) prognosis. To comprehensively and quantitatively summarize the prognostic value of IL-17 expression in LC patients, a systematic review and meta-analysis were performed. METHODS: We identified the relevant literatures by searching the PubMed, EMBASE, Cochrane Library, SinoMed, China National Knowledge Infrastructure (CNKI) and Wanfang Data databases, up until April 1, 2017...
2017: PloS One
https://www.readbyqxmd.com/read/28934298/transcriptome-analysis-of-callery-pear-pyrus-calleryana-reveals-a-comprehensive-signalling-network-in-response-to-alternaria-alternata
#10
Jialiang Kan, Tingli Liu, Na Ma, Hui Li, Xiaogang Li, Jinyan Wang, Baolong Zhang, Youhong Chang, Jing Lin
The pear is an important temperate fruit worldwide that is produced by a group of species in the genus Pyrus. Callery pear (Pyrus calleryana Decne) is characterized by high resistance to multiple diseases, good adaptability, and high ornamental value, and is therefore widely planted in pear orchards for edible fruit production or as stock. Plant pathogens are a major threat to pear yield. Black spot disease, caused by the filamentous fungus Alternaria alternata, is one of the most serious diseases in pear. Elucidation of resistant genes to black spot disease is extremely important for understanding the underlying mechanisms as well as for the development of resistant cultivars...
2017: PloS One
https://www.readbyqxmd.com/read/28934270/assessment-of-the-trophic-state-of-a-hypersaline-carbonatic-environment-vermelha-lagoon-brazil
#11
Lazaro Laut, Maria Virginia Alves Martins, Fabrizio Frontalini, João M Ballalai, Pierre Belart, Renan Habib, Luiz F Fontana, Iara M M M Clemente, Maria Lucia Lorini, João G Mendonça Filho, Vanessa M Laut, Marcos de Souza Lima Figueiredo
Vermelha Lagoon is a hypersaline shallow transitional ecosystem in the state of Rio de Janeiro (Brazil). This lagoon is located in the protected area of Massambaba, between the cities of Araruama and Saquarema (Brazil), and displays two quite uncommon particularities: it exhibits carbonate sedimentation and displays the development of Holocene stromatolites. Due to both particularities, the salt industry and property speculation have been, increasingly, generating anthropic pressures on this ecosystem. This study aims to apply a multiproxy approach to evaluate the trophic state of Vermelha Lagoon based on physicochemical parameters and geochemical data for the quantification and qualification of organic matter (OM), namely total organic carbon (TOC), total sulfur (TS), total phosphorus (TP) and biopolymeric carbon (BPC), including carbohydrates (CHO), lipids (LIP) and proteins (PTN)...
2017: PloS One
https://www.readbyqxmd.com/read/28934249/variability-in-objective-and-subjective-measures-affects-baseline-values-in-studies-of-patients-with-copd
#12
Wayne H Anderson, Jae Wook Ha, David J Couper, Wanda K O'Neal, R Graham Barr, Eugene R Bleecker, Elizabeth E Carretta, Christopher B Cooper, Claire M Doerschuk, M Bradley Drummond, MeiLan K Han, Nadia N Hansel, Victor Kim, Eric C Kleerup, Fernando J Martinez, Stephen I Rennard, Donald Tashkin, Prescott G Woodruff, Robert Paine, Jeffrey L Curtis, Richard E Kanner
RATIONALE: Understanding the reliability and repeatability of clinical measurements used in the diagnosis, treatment and monitoring of disease progression is of critical importance across all disciplines of clinical practice and in clinical trials to assess therapeutic efficacy and safety. OBJECTIVES: Our goal is to understand normal variability for assessing true changes in health status and to more accurately utilize this data to differentiate disease characteristics and outcomes...
2017: PloS One
https://www.readbyqxmd.com/read/28934230/e-cadherin-a-determinant-molecule-associated-with-ovarian-cancer-progression-dissemination-and-aggressiveness
#13
Marina Rosso, Blanca Majem, Laura Devis, Lara Lapyckyj, María José Besso, Marta Llauradó, María Florencia Abascal, María Laura Matos, Lucia Lanau, Josep Castellví, José Luis Sánchez, Asunción Pérez Benavente, Antonio Gil-Moreno, Jaume Reventós, Anna Santamaria Margalef, Marina Rigau, Mónica Hebe Vazquez-Levin
Ovarian cancer (OC) is the fifth cancer death cause in women worldwide. The malignant nature of this disease stems from its unique dissemination pattern. Epithelial-to-mesenchymal transition (EMT) has been reported in OC and downregulation of Epithelial cadherin (E-cadherin) is a hallmark of this process. However, findings on the relationship between E-cadherin levels and OC progression, dissemination and aggressiveness are controversial. In this study, the evaluation of E-cadherin expression in an OC tissue microarray revealed its prognostic value to discriminate between advanced- and early-stage tumors, as well as serous tumors from other histologies...
2017: PloS One
https://www.readbyqxmd.com/read/28934153/inhibitory-effect-of-selaginellins-from-selaginella-tamariscina-beauv-spring-against-cytochrome-p450-and-uridine-5-diphosphoglucuronosyltransferase-isoforms-on-human-liver-microsomes
#14
Jae-Kyung Heo, Phi-Hung Nguyen, Won Cheol Kim, Nguyen Minh Phuc, Kwang-Hyeon Liu
Selaginella tamariscina (Beauv.) has been used for traditional herbal medicine for treatment of cancer, hepatitis, and diabetes in the Orient. Numerous bioactive compounds including alkaloids, flavonoids, lignans, and selaginellins have been identified in this medicinal plant. Among them, selaginellins having a quinone methide unit and an alkylphenol moiety have been known to possess anticancer, antidiabetic, and neuroprotective activity. Although there have been studies on the biological activities of selaginellins, their modulatory potential of cytochrome P450 (P450) and uridine 5'-diphosphoglucuronosyltransferase (UGT) activities have not been previously evaluated...
September 21, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28934081/longitudinal-analysis-of-nut-inclusive-diets-and-body-mass-index-among-overweight-and-obese-african-american-women-living-in-rural-alabama-and-mississippi-2011-2013
#15
Samara R Sterling, Brenda Bertrand, Suzanne Judd, Tiffany L Carson, Paula Chandler-Laney, Monica L Baskin
INTRODUCTION: Nuts, when eaten alongside other nutritionally rich foods, may decrease obesity and related chronic disease risks, which are high among African American women in the rural South. We monitored changes in nut intake, other obesity-related foods (fruits, vegetables, red or processed meats, added sugars), and body mass index (BMI) over a 2-year weight loss intervention among 383 overweight and obese African American women in rural Alabama and Mississippi. METHODS: Two dietary recalls were administered at 4 points over 24 months...
September 21, 2017: Preventing Chronic Disease
https://www.readbyqxmd.com/read/28933972/visual-acuity-and-macular-and-peripapillary-thickness-in-high-myopia
#16
Solmaz Abdolrahimzadeh, Francesco Parisi, Andrea Maria Plateroti, Federica Evangelista, Vito Fenicia, Gianluca Scuderi, Santi Maria Recupero
PURPOSE: To investigate best corrected visual acuity (BCVA), and choroidal and retinal thickness values between high myopes without myopic maculopathy and emmetropes. MATERIALS AND METHODS: Case control study where 53 myopes with axial length (AL) above 26 mm without myopic maculopathy and 53 age-matched emmetropes with AL between 21.50 and 24.50 were included as controls. Complete ophthalmological examination and biometry were performed. Choroidal and individual retinal layer thickness maps using spectral domain optical coherence tomography were obtained in the macular and peripapillary area with enhanced depth imaging...
September 21, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28933971/the-pharmacokinetics-safety-and-tolerability-of-single-high-strength-doses-of-fluticasone-propionate-and-fluticasone-propionate-salmeterol-delivered-via-a-novel-multidose-dry-powder-inhaler-in-adolescents-and-adults-with-persistent-asthma
#17
Courtney Nugent, Gloria Yiu, Sharon Song, Cynthia Caracta
OBJECTIVE: Characterize fluticasone propionate (Fp) and combination fluticasone propionate and salmeterol (FS) pharmacokinetic and safety profiles, delivered via a novel, inhalation-driven, multidose dry powder inhaler (MDPI). METHODS: This multicenter, open-label, 4-period crossover, single-dose study randomized patients aged ≥12 years with persistent asthma to Fp MDPI 200 mcg, FS MDPI 200/12.5 mcg, Fp dry powder inhaler (DPI) 500 mcg (250 mcg × 2 inhalations), or FS DPI 500/50 mcg...
September 21, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/28933886/mexican-origin-youth-substance-use-trajectories-associations-with-cultural-and-family-factors
#18
Rick A Cruz, Kevin M King, Molly Mechammil, Mayra Bámaca-Colbert, Richard W Robins
The current study identified alcohol and cannabis use trajectories among a sample of Mexican-origin youth and examined cultural and familial correlates from childhood to adolescence. Mexican-origin youth (N = 674) from Northern California were assessed annually from ages 10 to 17 (8 waves). Latent class growth modeling examined variability in developmental trajectories for last 3-month alcohol and cannabis use frequency. Analyses also examined between-trajectory differences in youth's cultural practices and values, family cultural conflict, general parent-child conflict, and parental monitoring at 4 time points from ages 10 to 16...
September 21, 2017: Developmental Psychology
https://www.readbyqxmd.com/read/28933837/a-quartz-crystal-microbalance-model-for-quantitatively-probing-the-deformation-of-adsorbed-particles-at-low-surface-coverage
#19
Jurriaan J J Gillissen, Joshua Alexander Jackman, Seyed R Tabaei, Bo Kyeong Yoon, Nam-Joon Cho
Characterizing the deformation of nanoscale, soft-matter particulates at solid-liquid interfaces is a demanding task, and there are limited experimental options to perform quantitative measurements in a non-perturbative manner. Previous attempts, based on the quartz crystal microbalance (QCM) technique, focused on the high surface coverage regime and modeled the adsorbed particles as a homogeneous film, while not considering the coupling between particles and surrounding fluid and hence resulting in an underestimation of the known particle height...
September 21, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28933829/synthesis-crystal-structure-and-magnetic-properties-of-the-highly-frustrated-orthorhombic-li4mgreo6
#20
JoAnna Milam-Guerrero, Charles J Bloed, Phuong-Hieu T Nguyen, Gia T Tran, William P Martin, Demetrios V Papakostas, Jefferson Toro, Murray N Wilson, Jeremy P Carlo, Graeme M Luke, Brent C Melot, Jiyeong Gu, Shahab Derakhshan
In an effort to understand the structure-property relationship in magnetically frustrated systems, an orthorhombic analog of the S = 1/2 Re-based oxide Li4MgReO6 has been successfully synthesized and its physical properties were investigated. Li4MgReO6 had been previously synthesized in a monoclinic system in an ordered NaCl structure type. That system was shown to exhibit spin glass behavior below ∼12 K. The crystal structure of the latter phase was determined using powder X-ray diffraction data. A structural model was refined in the orthorhombic Fddd space group that resulted in cell dimensions of a = 5...
September 21, 2017: Inorganic Chemistry
keyword
keyword
23478
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"