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https://www.readbyqxmd.com/read/29164961/disability-and-activity-related-emotion-in-later-life-are-effects-buffered-by-intimate-relationship-support-and-strain
#1
Deborah Carr, Jennifer C Cornman, Vicki A Freedman
We use daily diary data from the Disability and Use of Time supplement to the 2013 Panel Study of Income Dynamics ( n = 1,162) to evaluate (1) the extent to which marital/partner support and strain moderate the effects of disability on five activity-related emotions (happiness, calm, sadness, frustration, worry) and overall negative and positive emotion among older married, cohabiting, and dating persons and (2) whether such patterns differ significantly by gender. Marital support buffers against negative emotions and increases feelings of calm among severely impaired women...
September 2017: Journal of Health and Social Behavior
https://www.readbyqxmd.com/read/29160627/native-and-microwave-modified-terminalia-mantaly-gums-as-sustained-release-and-bioadhesive-excipients-in-naproxen-matrix-tablet-formulations
#2
Michael Ayodele Odeniyi, Babatunde Mukhtar Oyedokun, Oluyemisi Adebowale Bamiro
BACKGROUND: Hydrophilic polymers provide a means of sustaining drug delivery. Native gums may be limited in function, but modification may improve their activity. OBJECTIVES: The aim of the study was to evaluate native and modified forms of Terminalia mantaly gum for their sustained-release and bioadhesive properties. MATERIAL AND METHODS: The native gum (NTM) was modified by microwave irradiation for 20 seconds (MTM20) and 60 seconds (MTM60) and characterized using microscopy, Fourier transform infrared spectroscopy (FTIR) and packing properties...
January 2017: Polimery W Medycynie
https://www.readbyqxmd.com/read/29121287/analgesia-nociception-index-for-the-assessment-of-pain-in-critically-ill-patients-a-diagnostic-accuracy-study
#3
G Chanques, T Tarri, A Ride, A Prades, A De Jong, J Carr, N Molinari, S Jaber
Background: Behavioural pain tools are used in Intensive Care Unit (ICU) patients unable to self-report their pain-intensity but need sustained efforts to educate and train the ICU team because of the subjective nature of these clinical tools. This study measured the validity and performance of an electrophysiological monitoring tool based on the spectral analysis of heart rate variability, the Analgesia Nociception Index (ANI) which varies from 0 (minimal parasympathetic tone, maximal stress-response and pain) to 100 (maximal parasympathetic tone, minimal stress-response and pain)...
October 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29114068/receptor-tyrosine-kinase-activation-of-rhoa-is-mediated-by-akt-phosphorylation-of-dlc1
#4
Brajendra K Tripathi, Tiera Grant, Xiaolan Qian, Ming Zhou, Philipp Mertins, Dunrui Wang, Alex G Papageorge, Sergey G Tarasov, Kent W Hunter, Steven A Carr, Douglas R Lowy
We report several receptor tyrosine kinase (RTK) ligands increase RhoA-guanosine triphosphate (GTP) in untransformed and transformed cell lines and determine this phenomenon depends on the RTKs activating the AKT serine/threonine kinase. The increased RhoA-GTP results from AKT phosphorylating three serines (S298, S329, and S567) in the DLC1 tumor suppressor, a Rho GTPase-activating protein (RhoGAP) associated with focal adhesions. Phosphorylation of the serines, located N-terminal to the DLC1 RhoGAP domain, induces strong binding of that N-terminal region to the RhoGAP domain, converting DLC1 from an open, active dimer to a closed, inactive monomer...
November 7, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/29078387/individual-differences-in-associative-memory-among-older-adults-explained-by-hippocampal-subfield-structure-and-function
#5
Valerie A Carr, Jeffrey D Bernstein, Serra E Favila, Brian K Rutt, Geoffrey A Kerchner, Anthony D Wagner
Older adults experience impairments in episodic memory, ranging from mild to clinically significant. Given the critical role of the medial temporal lobe (MTL) in episodic memory, age-related changes in MTL structure and function may partially account for individual differences in memory. Using ultra-high-field 7T structural MRI and high-resolution 3T functional MRI (hr-fMRI), we evaluated MTL subfield thickness and function in older adults representing a spectrum of cognitive health. Participants performed an associative memory task during hr-fMRI in which they encoded and later retrieved face-name pairs...
November 7, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29056909/the-dopamine-d5-receptor-is-involved-in-working-memory
#6
Gregory V Carr, Federica Maltese, David R Sibley, Daniel R Weinberger, Francesco Papaleo
Pharmacological studies indicate that dopamine D1-like receptors (D1 and D5) are critically involved in cognitive function. However, the lack of pharmacological ligands selective for either the D1 or D5 receptors has made it difficult to determine the unique contributions of the D1-like family members. To circumvent these pharmacological limitations, we used D5 receptor homozygous (-/-) and heterozygous (+/-) knockout mice, to identify the specific role of this receptor in higher order cognitive functions. We identified a novel role for D5 receptors in the regulation of spatial working memory and temporal order memory function...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29027416/-application-of-quality-by-design-in-granulation-process-for-ginkgo-leaf-tablet-%C3%A2-%C3%AF-influence-and-control-of-raw-materials-quality-variation
#7
Xiang-Long Cui, Bing Xu, Jun-Wen Liu, Guo-Lin Shi, Xin-Yuan Shi, Yan-Jiang Qiao
Raw materials' quality variation could affect the quality consistency of product and the clinical efficacy. In this paper, the high shear wet granulation (HSWG) process of the ginkgo leaf tablet was taken as the research object. Ginkgo biloba extracts and excipients microcrystalline cellulose collected from various sources and batches were used to simulate raw materials' quality variation. Real-time torque was recorded to analyze the viscosity of the wetting mass, and then by combining with physical fingerprint, the impact of physical quality variation of powders on granule properties could be investigated...
March 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28947643/il-1%C3%AE-is-critical-for-resistance-against-highly-virulent-aspergillus-fumigatus-isolates
#8
Alayna K Caffrey-Carr, Caitlin H Kowalski, Sarah R Beattie, Nathan A Blaseg, Chanell R Upshaw, Arsa Thammahong, Hannah E Lust, Yi-Wei Tang, Tobias M Hohl, Robert A Cramer, Joshua J Obar
Heterogeneity amongst Aspergillus fumigatus isolates results in unique virulence potential and inflammatory responses. How these isolates drive specific immune responses and how this affects fungal-induced lung damage and disease outcome is unresolved. We demonstrate that the highly virulent CEA10 strain is able to rapidly germinate within the immune competent lung environment inducing greater lung damage, vascular leakage, and IL-1α release compared to the low virulent Af293 strain that germinates with lower frequency in this environment...
September 25, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28935558/immediate-interruption-of-sedation-compared-with-usual-sedation-care-in-critically-ill-postoperative-patients-sos-ventilation-a-randomised-parallel-group-clinical-trial
#9
Gerald Chanques, Matthieu Conseil, Claire Roger, Jean-Michel Constantin, Albert Prades, Julie Carr, Laurent Muller, Boris Jung, Fouad Belafia, Moussa Cissé, Jean-Marc Delay, Audrey de Jong, Jean-Yves Lefrant, Emmanuel Futier, Grégoire Mercier, Nicolas Molinari, Samir Jaber
BACKGROUND: Avoidance of excessive sedation and subsequent prolonged mechanical ventilation in intensive care units (ICUs) is recommended, but no data are available for critically ill postoperative patients. We hypothesised that in such patients stopping sedation immediately after admission to the ICU could reduce unnecessary sedation and improve patient outcomes. METHODS: We did a randomised, parallel-group, clinical trial at three ICUs in France. Stratified randomisation with minimisation (1:1 via a restricted web platform) was used to assign eligible patients (aged ≥18 years, admitted to an ICU after abdominal surgery, and expected to require at least 12 h of mechanical ventilation because of a critical illness defined by a Sequential Organ Failure Assessment score >1 for any organ, but without severe acute respiratory distress syndrome or brain injury) to usual sedation care provided according to recommended practices (control group) or to immediate interruption of sedation (intervention group)...
October 2017: Lancet Respiratory Medicine
https://www.readbyqxmd.com/read/28921984/melting-behavior-of-a-dna-four-way-junction-using-spectroscopic-and-calorimetric-techniques
#10
Carolyn E Carr, Luis A Marky
Intramolecular four-way junctions are structures present during homologous recombination, repair of double stranded DNA breaks, and integron recombination. Because of the wide range of biological processes four-way junctions are involved in, understanding how and under what conditions these structures form is critical. In this work, we used a combination of spectroscopic and calorimetric techniques to present a complete thermodynamic description of the unfolding of a DNA four-way junction (FWJ) and its appropriate control stem-loop motifs (Dumbbell, GAAATT-Hp, CTATC-Hp, GTGC-Hp, and GCGC-Hp)...
October 4, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28883025/do-air-gaps-behind-soft-body-armour-affect-protection
#11
Lee Tilsley, D J Carr, C Lankester, C Malbon
INTRODUCTION: Body armour typically comprises a fabric garment covering the torso combined with hard armour (ceramic/composite). Some users wear only soft armour which provides protection from sharp weapons and pistol ammunition. It is usually recommended that body armour is worn against the body with no air-gaps being present between the wearer and the armour. However, air-gaps can occur in certain situations such as females around the breasts, in badly fitting armour and where manufacturers have incorporated an air-gap claiming improvements in thermophysiological burden...
September 6, 2017: Journal of the Royal Army Medical Corps
https://www.readbyqxmd.com/read/28846708/rna-sequencing-demonstrates-large-scale-temporal-dysregulation-of-gene-expression-in-stimulated-macrophages-derived-from-mhc-defined-chicken-haplotypes
#12
Kristopher J L Irizarry, Eileen Downs, Randall Bryden, Jory Clark, Lisa Griggs, Renee Kopulos, Cynthia M Boettger, Thomas J Carr, Calvin L Keeler, Ellen Collisson, Yvonne Drechsler
Discovering genetic biomarkers associated with disease resistance and enhanced immunity is critical to developing advanced strategies for controlling viral and bacterial infections in different species. Macrophages, important cells of innate immunity, are directly involved in cellular interactions with pathogens, the release of cytokines activating other immune cells and antigen presentation to cells of the adaptive immune response. IFNγ is a potent activator of macrophages and increased production has been associated with disease resistance in several species...
2017: PloS One
https://www.readbyqxmd.com/read/28841214/tudor-domain-protein-phf20l1-reads-lysine-methylated-retinoblastoma-tumour-suppressor-protein
#13
Simon M Carr, Shonagh Munro, Cari A Sagum, Oleg Fedorov, Mark T Bedford, Nicholas B La Thangue
The retinoblastoma tumour suppressor protein (pRb) classically functions to regulate early cell cycle progression where it acts to enforce a number of checkpoints in response to cellular stress and DNA damage. Methylation at lysine (K) 810, which occurs within a critical CDK phosphorylation site and antagonises a CDK-dependent phosphorylation event at the neighbouring S807 residue, acts to hold pRb in the hypo-phosphorylated growth-suppressing state. This is mediated in part by the recruitment of the reader protein 53BP1 to di-methylated K810, which allows pRb activity to be effectively integrated with the DNA damage response...
December 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28790179/high-prevalence-of-ccdc103-p-his154pro-mutation-causing-primary-ciliary-dyskinesia-disrupts-protein-oligomerisation-and-is-associated-with-normal-diagnostic-investigations
#14
Amelia Shoemark, Eduardo Moya, Robert A Hirst, Mitali P Patel, Evelyn A Robson, Jane Hayward, Juliet Scully, Mahmoud R Fassad, William Lamb, Miriam Schmidts, Mellisa Dixon, Ramila S Patel-King, Andrew V Rogers, Andrew Rutman, Claire L Jackson, Patricia Goggin, Bruna Rubbo, Sarah Ollosson, Siobhán Carr, Woolf Walker, Beryl Adler, Michael R Loebinger, Robert Wilson, Andrew Bush, Hywel Williams, Christopher Boustred, Lucy Jenkins, Eamonn Sheridan, Eddie M K Chung, Christopher M Watson, Thomas Cullup, Jane S Lucas, Priti Kenia, Christopher O'Callaghan, Stephen M King, Claire Hogg, Hannah M Mitchison
RATIONALE: Primary ciliary dyskinesia is a genetically heterogeneous inherited condition characterised by progressive lung disease arising from abnormal cilia function. Approximately half of patients have situs inversus. The estimated prevalence of primary ciliary dyskinesia in the UK South Asian population is 1:2265. Early, accurate diagnosis is key to implementing appropriate management but clinical diagnostic tests can be equivocal. OBJECTIVES: To determine the importance of genetic screening for primary ciliary dyskinesia in a UK South Asian population with a typical clinical phenotype, where standard testing is inconclusive...
August 8, 2017: Thorax
https://www.readbyqxmd.com/read/28724534/m6aviewer-software-for-the-detection-analysis-and-visualization-of-n-6-methyladenosine-peaks-from-m-6-a-seq-me-rip-sequencing-data
#15
Agne Antanaviciute, Belinda Baquero-Perez, Christopher M Watson, Sally M Harrison, Carolina Lascelles, Laura Crinnion, Alexander F Markham, David T Bonthron, Adrian Whitehouse, Ian M Carr
Recent methods for transcriptome-wide N(6)-methyladenosine (m(6)A) profiling have facilitated investigations into the RNA methylome and established m(6)A as a dynamic modification that has critical regulatory roles in gene expression and may play a role in human disease. However, bioinformatics resources available for the analysis of m(6)A sequencing data are still limited. Here, we describe m6aViewer-a cross-platform application for analysis and visualization of m(6)A peaks from sequencing data. m6aViewer implements a novel m(6)A peak-calling algorithm that identifies high-confidence methylated residues with more precision than previously described approaches...
October 2017: RNA
https://www.readbyqxmd.com/read/28723566/genome-wide-rnai-screen-for-fat-regulatory-genes-in-c-%C3%A2-elegans-identifies-a-proteostasis-ampk-axis-critical-for-starvation-survival
#16
Christopher M Webster, Elizabeth C Pino, Christopher E Carr, Lianfeng Wu, Ben Zhou, Lucydalila Cedillo, Michael C Kacergis, Sean P Curran, Alexander A Soukas
Organisms must execute metabolic defenses to survive nutrient deprivation. We performed a genome-wide RNAi screen in Caenorhabditis elegans to identify fat regulatory genes indispensable for starvation resistance. Here, we show that opposing proteostasis pathways are principal determinants of starvation survival. Reduced function of cytoplasmic aminoacyl tRNA synthetases (ARS genes) increases fat mass and extends starvation survival, whereas reduced proteasomal function reduces fat and starvation survival. These opposing pathways converge on AMP-activated protein kinase (AMPK) as the critical effector of starvation defenses...
July 18, 2017: Cell Reports
https://www.readbyqxmd.com/read/28718821/tick-haller-s-organ-a-new-paradigm-for-arthropod-olfaction-how-ticks-differ-from-insects
#17
Ann L Carr, Robert D Mitchell Iii, Anirudh Dhammi, Brooke W Bissinger, Daniel E Sonenshine, R Michael Roe
Ticks are the vector of many human and animal diseases; and host detection is critical to this process. Ticks have a unique sensory structure located exclusively on the 1st pairs of legs; the fore-tarsal Haller's organ, not found in any other animals, presumed to function like the insect antennae in chemosensation but morphologically very different. The mechanism of tick chemoreception is unknown. Utilizing next-generation sequencing and comparative transcriptomics between the 1st and 4th legs (the latter without the Haller's organ), we characterized 1st leg specific and putative Haller's organ specific transcripts from adult American dog ticks, Dermacentor variabilis...
July 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28718409/metronomic-chemotherapy-direct-targeting-of-cancer-cells-after-all
#18
REVIEW
Nicolas André, Kelvin Tsai, Manon Carré, Eddy Pasquier
Metronomic chemotherapy (MC) was initially described as an antiangiogenic therapy more than 15 years ago. Over the past few years, additional data have highlighted the impact of MC on the microenvironment beyond angiogenesis, with, most importantly, a potential impact on the immune system. Here, we review and reappraise the fact that MC might be able to directly kill cancer cells. Although long neglected, this question is of critical importance both fundamentally and clinically, especially when considering future associations with immunotherapies...
May 2017: Trends in Cancer
https://www.readbyqxmd.com/read/28662202/innovative-non-thermal-plasma-disinfection-process-inside-sealed-bags-assessment-of-bactericidal-and-sporicidal-effectiveness-in-regard-to-current-sterilization-norms
#19
Zouhaier Ben Belgacem, Gaëlle Carré, Emilie Charpentier, Florian Le-Bras, Thomas Maho, Eric Robert, Jean-Michel Pouvesle, Franck Polidor, Sophie C Gangloff, Mohamed Boudifa, Marie-Paule Gelle
In this work, we developed a device capable to generate a non-thermal plasma discharge inside a sealed bag. The aim of this study was to assess the effectiveness of the oxygen, nitrogen and argon plasma sterilization on Pseudomonas aeruginosa, Staphylococcus aureus and Bacillus subtilis spores according to the NF EN 556 Norm. Moreover the bag integrity which is a critical key to maintain the sterile state of items after the end of the process was verified by Fourier Transform Infrared (FTIR) and X-ray Photoelectron Spectrometry (XPS) analyses...
2017: PloS One
https://www.readbyqxmd.com/read/28648579/release-mechanism-of-doxazosin-from-carrageenan-matrix-tablets-effect-of-ionic-strength-and-addition-of-sodium-dodecyl-sulphate
#20
Petra Kos, Matej Pavli, Saša Baumgartner, Ksenija Kogej
The polyelectrolyte matrix tablets loaded with an oppositely charged drug exhibit complex drug-release mechanisms. In this study, the release mechanism of a cationic drug doxazosin mesylate (DM) from matrix tablets based on an anionic polyelectrolyte λ-carrageenan (λ-CARR) is investigated. The drug release rates from λ-CARR matrices are correlated with binding results based on potentiometric measurements using the DM ion-sensitive membrane electrode and with molecular characteristics of the DM-λ-CARR-complex particles through hydrodynamic size measurements...
June 22, 2017: International Journal of Pharmaceutics
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