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https://www.readbyqxmd.com/read/29161659/lipopolysaccharide-lps-mediated-priming-of-toll-like-receptor-4-enhances-oxidant-induced-prostaglandin-e2-biosynthesis-in-primary-murine-macrophages
#1
Yan Zhang, Orisa J Igwe
Agonists and pseudo-agonists for toll-like receptor 4 (TLR4) are common in our environment. Thus, human exposure to these agents may result in "priming or sensitization" of TLR4. A body of evidence suggests that LPS-mediated sensitization of TLR4 can increase the magnitude of responses to exogenous agents in multiple tissues. We have previously shown that reactive oxygen and nitrogen species (RONS) stimulate TLR4. There is no evidence that LPS-primed TLR4 can influence the magnitude of responses to oxidants from either endogenous or exogenous sources...
November 18, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29161224/viewing-sexual-desire-as-stable-vs-fluid-the-impact-of-implicit-beliefs-on-women-s-coping-with-sexual-desire-problems
#2
Siobhan Sutherland, Uzma S Rehman
Our goal was to examine how implicit theories can be applied to understanding women's coping responses to sexual problems. The belief that sexual desire changes over time is a type of incremental theory, while the belief that sexual desire is stable is a type of entity theory (Dweck, 2012). We examined how different implicit theories of sexual desire influence how women cope with sexual desire challenges. Also, we sought to determine whether women's perceptions of experiencing a sexual desire challenge moderate the relationship between their implicit beliefs and their coping responses...
November 21, 2017: Journal of Sex & Marital Therapy
https://www.readbyqxmd.com/read/29161022/structural-and-functional-studies-of-the-daunorubicin-priming-ketosynthase-dpsc
#3
David R Jackson, Gaurav Shakya, Avinash B Patel, Lina Y Mohammed, Kostas Vasilakis, Pakorn Wattana-Amorn, Timothy R Valentic, Jacob Milligan, Matthew P Crump, John Crosby, Shiou-Chuan Tsai
Daunorubicin is a type II polyketide, one of a large class of polyaromatic natural products with anticancer, antibiotic and antiviral activity. Type II polyketides are formed by the assembly of malonyl-CoA building blocks, though in rare cases, biosynthesis is initiated by the incorporation of a non-malonyl derived starter unit, which adds molecular diversity to the poly-β-ketone backbone. Priming mechanisms for the transfer of novel starter units onto polyketide synthases (PKS) are still poorly understood...
November 21, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/29161012/top-down-proteomics-ready-for-prime-time
#4
Bifan Chen, Kyle A Brown, Ziqing Lin, Ying Ge
In the post-genomics era, the study of proteins is critical for understanding cellular functions at the molecular level.1-5 Beyond the genetic code, the human proteome is greatly diversified by various genetic variations, alternative splicing of RNA transcripts, and post-translational modifi-cations (PTMs).6,7 In 2013, the term "proteoform" was designated to describe "all of the different molecular forms in which the protein product of a single gene can be found",6 clearing up the confusion in nomenclature and joining research efforts to develop methodologies for pro-teoform characterization...
November 21, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29160931/hepatitis-c-viremic-donors-for-hepatitis-c-negative-liver-transplant-recipients-ready-for-prime-time
#5
EDITORIAL
Elizabeth C Verna, David S Goldberg
No abstract text is available yet for this article.
November 21, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/29160189/after-fertility-s-nadir-ethnic-differentials-in-parity-specific-behaviours-in-kyrgyzstan
#6
Thomas Spoorenberg
After a swift decline in the 1990s, the countries of Central Asia have experienced significant fertility increases over the last 15 years. These fertility upturns have remained off the radar of demographers. This study examines the recent fertility increase in Kyrgyzstan, focusing on fertility development by parity and among the main ethnic groups, in order to go beyond classic fertility indicators and national averages. Using a sample from the 2009 Census micro-dataset, sibling progression ratios were computed using information on the relationships and dates of birth of children under the age of 15...
November 2017: Journal of Biosocial Science
https://www.readbyqxmd.com/read/29159999/-economies-of-experience-disambiguation-of-degraded-stimuli-leads-to-a-decreased-dispersion-of-eye-movement-patterns
#7
Magdalena Ewa Król, Michał Król
We demonstrate "economies of experience" in eye-movement patterns-that is, optimization of eye-movement patterns aimed at more efficient and less costly visual processing, similar to the priming-induced formation of sparser cortical representations or reduced reaction times. Participants looked at Mooney-type, degraded stimuli that were difficult to recognize without prior experience, but easily recognizable after exposure to their undegraded versions. As predicted, eye-movement dispersion, velocity, and the number of fixations decreased with each stimulus presentation...
November 20, 2017: Cognitive Science
https://www.readbyqxmd.com/read/29159946/extracellular-volume-with-bolus-only-technique-in-amyloidosis-patients-diagnostic-accuracy-correlation-with-other-clinical-cardiac-measures-and-ability-to-track-changes-in-amyloid-load-over-time
#8
Giulia Zumbo, Sharon V Barton, Douglas Thompson, Min Sun, Amna Abdel-Gadir, Thomas A Treibel, Daniel Knight, Ana Martinez-Naharro, Lane Thirusha, Julian D Gillmore, James C Moon, Philip N Hawkins, Marianna Fontana
BACKGROUND: Extracellular volume (ECV) by T1 mapping requires the contrast agent distribution to be at equilibrium. This can be achieved either definitively with a primed contrast infusion (infusion ECV), or sufficiently with a delay postbolus (bolus-only ECV). For large ECV, the bolus-only approach measures higher than the infusion ECV, causing some uncertainty in diseases such as amyloidosis. PURPOSE: To characterize the relationship between the bolus-only and current gold-standard infusion ECV in patients with amyloidosis...
November 21, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29159926/deep-ocean-prokaryotic-communities-are-remarkably-malleable-when-facing-long-term-starvation
#9
Marta Sebastián, Jean-Christophe Auguet, Claudia Ximena Restrepo Ortiz, Maria Montserrat Sala, Celia Marrasé, Josep M Gasol
The bathypelagic ocean is one of the largest ecosystems on Earth, and sustains half of the ocean's microbial activity. This microbial activity strongly relies on surface-derived particles, but there is growing evidence that the carbon released through solubilisation of these particles may not be sufficient to meet the energy demands of deep ocean prokaryotes. To explore how bathypelagic prokaryotes respond to the absence of external inputs of carbon, we followed the long-term (1 yr) dynamics of an enclosed community...
November 21, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/29159802/adenovirus-vector-based-prime-boost-vaccination-via-heterologous-routes-induces-cervicovaginal-cd8-t-cell-responses-against-hpv16-oncoproteins
#10
Nicolas Çuburu, Selina Khan, Cynthia D Thompson, Rina Kim, Jort Vellinga, Roland Zahn, Douglas R Lowy, Gert Scheper, John T Schiller
Recent advances in immunotherapy against cancer underscore the importance of T lymphocytes and tumor microenvironment, but few vaccines targeting cancer have been approved likely due in part to the dearth of common tumor antigens, insufficient immunogenicity and the evolution of immune evasion mechanisms during the progression to malignancy. Human papillomaviruses (HPV) are the primary etiologic agents of cervical cancer and progression from persistent HPV-infection to cervical intraepithelial lesions and eventually cancer requires persistent expression of the oncoproteins E6 and E7...
November 21, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29159315/l-arginine-biosensors-a-comprehensive-review
#11
REVIEW
Neelam Verma, Ashish Kumar Singh, Minni Singh
Arginine has been considered as the most potent nutraceutics discovered ever, due to its powerful healing property, and it's been known to scientists as the Miracle Molecule. Arginine detection in fermented food products is necessary because, high level of arginine in foods forms ethyl carbamate (EC) during the fermentation process. Therefore, L-arginine detection in fermented food products is very important as a control measure for quality of fermented foods, food supplements and beverages including wine. In clinical analysis arginine detection is important due to their enormous inherent versatility in various metabolic pathways, topmost in the synthesis of Nitric oxide (NO) and tumor growth...
December 2017: Biochemistry and Biophysics Reports
https://www.readbyqxmd.com/read/29158954/the-relationship-between-segmental-rolling-ability-and-lumbar-multifidus-activation-time
#12
Nicole Clark, Michael L Voight, Ashley M Campbell, Sherry Pierce, Pat Sells, Ryan Cook, Clint Henley, Lindsey Schiller
Background: Segmental rolling has been utilized as an assessment and intervention tool to identify and affect dysfunction of the upper quarter, core, and lower quarter. One theory to explain dysfunctional segmental rolling is a lack of segmental spinal control / stabilization. Faulty muscle firing sequencing has been related to poor spinal stability, however to date, no assessment tool exists to evaluate a patient's motor coordination of local and global musculature. Purpose: The purpose of this study was to assess the temporal sequence of lumbar multifidus activation associated with anterior deltoid activation, and to determine if faulty sequencing was associated with the inability to segmentally roll in subjects without mobility restrictions...
November 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/29158757/neutrophil-priming-in-copd-patients-by-bronchitis-visualized-by-ct-scans
#13
Leo Koenderman, Adele Lotamloi, Esther Pompe, Firdaus Mohamed Hoesein
No abstract text is available yet for this article.
2017: Tanaffos
https://www.readbyqxmd.com/read/29158592/epidemiology-pathology-and-identification-of-colletotrichum-including-a-novel-species-associated-with-avocado-persea-americana-anthracnose-in-israel
#14
Gunjan Sharma, Marcel Maymon, Stanley Freeman
Anthracnose disease caused by Colletotrichum species is a major constraint for the shelf-life and marketability of avocado fruits. To date, only C. gloeosporioides sensu lato and C. aenigma have been reported as pathogens affecting avocado in Israel. This study was conducted to identify and characterize Colletotrichum species associated with avocado anthracnose and to determine their survival on different host-structures in Israel. The pathogen survived and over-wintered mainly on fresh and dry leaves, as well as fresh twigs in the orchard...
November 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29158510/construction-of-developmental-lineage-relationships-in-the-mouse-mammary-gland-by-single-cell-rna-profiling
#15
Bhupinder Pal, Yunshun Chen, François Vaillant, Paul Jamieson, Lavinia Gordon, Anne C Rios, Stephen Wilcox, Naiyang Fu, Kevin He Liu, Felicity C Jackling, Melissa J Davis, Geoffrey J Lindeman, Gordon K Smyth, Jane E Visvader
The mammary epithelium comprises two primary cellular lineages, but the degree of heterogeneity within these compartments and their lineage relationships during development remain an open question. Here we report single-cell RNA profiling of mouse mammary epithelial cells spanning four developmental stages in the post-natal gland. Notably, the epithelium undergoes a large-scale shift in gene expression from a relatively homogeneous basal-like program in pre-puberty to distinct lineage-restricted programs in puberty...
November 20, 2017: Nature Communications
https://www.readbyqxmd.com/read/29158111/brain-derived-neurotrophic-factor-bdnf-determines-a-sex-difference-in-cue-conditioned-alcohol-seeking-in-rats
#16
Samuel J Hogarth, Emily J Jaehne, Maarten van den Buuse, Elvan Djouma
Alcohol use disorder is a detrimental addictive disease that develops through prolonged ethanol exposure and regular intoxication. However, the changes in the underlying neurobiology leading to alcohol addiction remain unclear. Brain-Derived Neurotrophic Factor (BDNF) is implicated in substance abuse disorders including alcoholism. As the vast majority of previous animal model studies have concentrated on males only, the aim of this study was to determine whether endogenous BDNF mediates alcohol seeking in a sex-specific manner...
November 17, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/29157965/polymer-based-nanoparticles-loaded-with-a-tlr7-ligand-to-target-the-lymph-node-for-immunostimulation
#17
Jérôme Widmer, Cédric Thauvin, Inès Mottas, Van N'guyen, Florence Delie, Eric Allémann, Carole Bourquin
Small-molecule agonists for the Toll-like receptors (TLR) 7 and 8 are effective for the immunotherapy of skin cancer when used as topical agents. Their systemic use has however been largely unsuccessful due to dose-limiting toxicity. We propose a polymer-based nanodelivery system to target resiquimod, a TLR7 ligand, to the lymph node in order to focus the immunostimulatory activity and to prevent a generalized inflammatory response. We demonstrate successful encapsulation of resiquimod in methoxypoly(ethylene glycol)-b-poly(DL-lactic acid) (mPEG-PLA) and mixed poly(DL-lactic-co-glycolic acid) (PLGA)/mPEG-PLA nanoparticles...
November 17, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29157416/the-temporal-dynamics-involved-in-object-representation-updating-to-predict-change
#18
Naomi du Bois, Mark A Elliott
The synchronization of cortically disparate neural assemblies at frequencies in the gamma-band range (30-70Hz) is considered to be involved in the perceptual organization of the environment. In support of this Elliott (2014) demonstrated improved detection of a target stimulus when this target was primed in a matrix that flickered at specific frequencies in the gamma-band range, each found to be separated by regular intervals which correspond with a 6.69Hz period. This can be explained in terms of the interaction of the stimulus (and stimulus-induced) rhythm with a slow endogenous theta rhythm...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/29157412/behavioral-oscillation-in-face-priming-prediction-about-face-identity-is-updated-at-a-theta-band-rhythm
#19
Yuanye Wang, Huan Luo
In order to deal with external world efficiently, the brain constantly generates predictions about incoming sensory inputs, a process known as "predictive coding." Our recent studies, by employing visual priming paradigms in combination with a time-resolved behavioral measurement, reveal that perceptual predictions about simple features (e.g., left or right orientation) return to low sensory areas not continuously but recurrently in a theta-band (3-4Hz) rhythm. However, it remains unknown whether high-level object processing is also mediated by the oscillatory mechanism and if yes at which rhythm the mechanism works...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/29157291/vaccination-with-recombinant-adenovirus-expressing-peste-des-petits-ruminants-virus-f-or-h-proteins-elicits-t-cell-responses-to-epitopes-that-arises-during-pprv-infection
#20
José Manuel Rojas, Miguel Avia, Elena Pascual, Noemí Sevilla, Verónica Martín
Peste des petits ruminants virus (PPRV) causes an economically important disease that limits productivity in small domestic ruminants and often affects the livestock of the poorest populations in developing countries. Animals that survive PPRV develop strong cellular and humoral responses, which are probably necessary for protection. Vaccination should thus aim at mimicking these natural responses. Immunization strategies against this morbillivirus using recombinant adenoviruses expressing PPRV-F or -H proteins can protect PPRV-challenged animals and permit differentiation of infected from vaccinated animals...
November 21, 2017: Veterinary Research
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