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https://www.readbyqxmd.com/read/28802547/good-ol-fat-links-between-lipid-signaling-and-longevity
#1
REVIEW
Victor Bustos, Linda Partridge
Aging is the single greatest risk factor for the development of disease. Understanding the biological molecules and mechanisms that modulate aging is therefore critical for the development of health-maximizing interventions for older people. The effect of fats on longevity has traditionally been disregarded as purely detrimental. However, new studies are starting to uncover the possible beneficial effects of lipids working as signaling molecules on health and longevity. These studies highlight the complex links between aging and lipid signaling...
August 9, 2017: Trends in Biochemical Sciences
https://www.readbyqxmd.com/read/28795370/surgical-upstaging-rates-for-vacuum-assisted-biopsy-proven-dcis-implications-for-active-surveillance-trials
#2
Lars J Grimm, Marc D Ryser, Ann H Partridge, Alastair M Thompson, Jeremy S Thomas, Jelle Wesseling, E Shelley Hwang
PURPOSE: This study was designed to determine invasive cancer upstaging rates at surgical excision following vacuum-assisted biopsy of ductal carcinoma in situ (DCIS) among women meeting eligibility for active surveillance trials. METHODS: Patients with vacuum-assisted, biopsy-proven DCIS at a single center from 2008 to 2015 were retrospectively reviewed. Imaging and pathology reports were interrogated for the imaging appearance, tumor grade, hormone receptor status, and presence of comedonecrosis...
August 9, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28794040/pathobiology-of-clade-2-3-4-4-h5nx-high-pathogenicity-avian-influenza-virus-infections-in-minor-gallinaceous-poultry-supports-early-backyard-flock-introductions-in-western-u-s-2014-2015
#3
Kateri Bertran, Dong-Hun Lee, Mary J Pantin-Jackwood, Erica Spackman, Charles Balzli, David L Suarez, David E Swayne
In 2014-2015, the U.S. experienced an unprecedented outbreak of Eurasian clade 2.3.4.4 H5 highly pathogenic avian influenza (HPAI) virus. Initial cases affected mainly wild birds and mixed backyard poultry species, while later outbreaks affected mostly commercial chickens and turkeys. The pathogenesis, transmission, and intra-host evolutionary dynamics of initial Eurasian H5N8 and reassortant H5N2 clade 2.3.4.4 HPAI viruses in the U.S. were investigated in minor gallinaceous poultry species (i.e. species for which the U...
August 9, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28742865/a-novel-mitochondrial-genome-of-arborophila-and-new-insight-into-arborophila-evolutionary-history
#4
Chaochao Yan, Biqin Mou, Yang Meng, Feiyun Tu, Zhenxin Fan, Megan Price, Bisong Yue, Xiuyue Zhang
The lineage of the Bar-backed Partridge (Arborophila brunneopectus) was investigated to determine the phylogenetic relationships within Arborophila as the species is centrally distributed within an area covered by the distributions of 22 South-east Asian hill partridge species. The complete mitochondrial genome (mitogenome) of A. brunneopectus was determined and compared with four other hill partridge species mitogenomes. NADH subunit genes are radical in hill partridge mitogenomes and contain the most potential positive selective sites around where variable sites are abundant...
2017: PloS One
https://www.readbyqxmd.com/read/28737400/synthesis-of-spirooxindoles-via-the-tert-amino-effect
#5
Kinthada Ramakumar, Tapan Maji, James J Partridge, Jon A Tunge
A new method is developed for the synthesis of spirooxindoles from amines and isatins via C-H functionalization. The reaction leverages the tert-amino effect to form an enolate-iminium intermediate via [1,5]-hydride shift followed by cyclization. Interestingly the hydride migrates to the N atom of a C═N, which is atypical for hydride additions to imines.
July 24, 2017: Organic Letters
https://www.readbyqxmd.com/read/28718400/histone-h3g34r-mutation-causes-replication-stress-homologous-recombination-defects-and-genomic-instability-in-s-pombe
#6
Rajesh K Yadav, Carolyn M Jablonowski, Alfonso G Fernandez, Brandon R Lowe, Ryan A Henry, David Finkelstein, Kevin J Barnum, Alison L Pidoux, Yin-Ming Kuo, Jie Huang, Matthew J O'Connell, Andrew J Andrews, Arzu Onar-Thomas, Robin C Allshire, Janet F Partridge
Recurrent somatic mutations of H3F3A in aggressive pediatric high-grade gliomas generate K27M or G34R/V mutant histone H3.3. H3.3-G34R/V mutants are common in tumors with mutations in p53 and ATRX, an H3.3-specific chromatin remodeler. To gain insight into the role of H3-G34R, we generated fission yeast that express only the mutant histone H3. H3-G34R specifically reduces H3K36 tri-methylation and H3K36 acetylation, and mutants show partial transcriptional overlap with set2 deletions. H3-G34R mutants exhibit genomic instability and increased replication stress, including slowed replication fork restart, although DNA replication checkpoints are functional...
July 18, 2017: ELife
https://www.readbyqxmd.com/read/28709736/supplementation-of-tris-based-extender-with-plasma-egg-yolk-of-six-avian-species-and-camel-skim-milk-for-chilled-preservation-of-dromedary-camel-semen
#7
Farnaz Panahi, Amir Niasari-Naslaji, Fahimehsadat Seyedasgari, Tahereh Ararooti, Kamal Razavi, Ali Akbar Moosavi-Movaheddi
The present study was conducted to investigate a suitable source (Expt. 1) and concentration (Expt. 2) of plasma egg yolk (PEY) and concentration of camel skim milk (CSM; Expt. 3) to supplement tris based extender for chilled storage of dromedary camel semen. In Expt. 1, PEY (20%) of six avian species (domestic chicken, domestic duck, Japanese quail, partridge, pigeon and guinea fowl) was added to semen extender. In Expt. 2, different concentrations (0, 10, 20, 30 and 40%) of selected PEY from Expt.1 were added to semen extender...
June 23, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28699890/changes-of-mitochondrial-ultrastructure-and-function-during-ageing-in-mice-and-drosophila
#8
Tobias Brandt, Arnaud Mourier, Luke S Tain, Linda Partridge, Nils-Göran Larsson, Werner Kühlbrandt
Ageing is a progressive decline of intrinsic physiological functions. We examined the impact of ageing on the ultrastructure and function of mitochondria in mouse and fruit flies (Drosophila melanogaster) by electron cryo-tomography and respirometry and discovered distinct age-related changes in both model organisms. Mitochondrial function and ultrastructure are maintained in mouse heart, whereas subpopulations of mitochondria from mouse liver show age-related changes in membrane morphology. Subpopulations of mitochondria from young and old mouse kidney resemble those described for apoptosis...
July 12, 2017: ELife
https://www.readbyqxmd.com/read/28697746/nursing-parental-perceptions-of-neonatal-care-in-central-vietnam-a-longitudinal-qualitative-study
#9
Katie Gallagher, Colin Partridge, Hoang T Tran, Suzanna Lubran, Duncan Macrae
BACKGROUND: Neonatal mortality accounts for nearly three quarters of all infant deaths in Vietnam. The nursing team are the largest professional group working with newborns, however do not routinely receive neonatal training and there is a lack of research into the impact of educational provision. This study explored changes in nursing perceptions towards their role following a neonatal educational intervention. Parents perceptions of nursing care were explored to determine any changes as nurses gained more experience...
July 11, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28690103/risk-communication-and-decision-making-in-the-prevention-of-invasive-breast-cancer
#10
Ann H Partridge
Risk communication surrounding the prevention of invasive breast cancer entails not only understanding of the disease, risks and opportunities for intervention. But it also requires understanding and implementation of optimal strategies for communication with patients who are making these decisions. In this article, available evidence for the issues surrounding risk communication and decision making in the prevention of invasive breast cancer are reviewed and strategies for improvement are discussed.
July 7, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28686476/oncology-physicians-perspectives-on-practices-and-barriers-to-fertility-preservation-and-the-feasibility-of-a-prospective-study-of-pregnancy-after-breast-cancer
#11
Shoshana M Rosenberg, Shari Gelber, Richard D Gelber, Ethan Krop, Larissa A Korde, Olivia Pagani, Ann H Partridge
PURPOSE: POSITIVE (Pregnancy Outcome and Safety of Interrupting Therapy for women with endocrine responsIVE breast cancer) is a prospective clinical trial assessing safety and pregnancy outcomes in premenopausal hormone receptor-positive breast cancer survivors (age ≤42) who interrupt endocrine therapy (ET) to attempt pregnancy. We sought to assess interest in this study and perspectives on fertility preservation (FP) among United States medical oncologists who had previously enrolled women at their institutions on select premenopausal endocrine studies...
July 7, 2017: Journal of Adolescent and Young Adult Oncology
https://www.readbyqxmd.com/read/28682128/the-effects-of-centralisation-of-vascular-surgical-services-in-the-bath-bristol-and-weston-area-on-the-carotid-endarterectomy-pathway
#12
E Partridge, M Brooks, C Curd, V Davis, C Oates, D McGeeney
Introduction Patients who experience a transient ischaemic attack are at the highest risk of having a subsequent stroke immediately after their symptoms. A carotid endarterectomy should be performed on symptomatic, surgically suitable patients who present with a greater than 50% North American Symptomatic Carotid Endarterectomy Trial stenosis of the internal carotid artery within 2 weeks of their symptoms. This study aimed to determine whether the effectiveness of the carotid endarterectomy pathway has been impacted by the centralisation of vascular surgical services in the Bath, Bristol and Weston area...
July 6, 2017: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/28671188/revising-the-hygroscopicity-of-inorganic-sea-salt-particles
#13
P Zieger, O Väisänen, J C Corbin, D G Partridge, S Bastelberger, M Mousavi-Fard, B Rosati, M Gysel, U K Krieger, C Leck, A Nenes, I Riipinen, A Virtanen, M E Salter
Sea spray is one of the largest natural aerosol sources and plays an important role in the Earth's radiative budget. These particles are inherently hygroscopic, that is, they take-up moisture from the air, which affects the extent to which they interact with solar radiation. We demonstrate that the hygroscopic growth of inorganic sea salt is 8-15% lower than pure sodium chloride, most likely due to the presence of hydrates. We observe an increase in hygroscopic growth with decreasing particle size (for particle diameters <150 nm) that is independent of the particle generation method...
July 3, 2017: Nature Communications
https://www.readbyqxmd.com/read/28665746/ovarian-suppression-for-women-younger-than-35-years-new-data-to-support-informed-decision-making
#14
Philip D Poorvu, Ann H Partridge
No abstract text is available yet for this article.
June 30, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28662566/ontogeny-of-flight-capacity-and-pectoralis-function-in-a-precocial-ground-bird-alectoris-chukar
#15
Bret W Tobalske, Brandon E Jackson, Kenneth P Dial
Flight is the defining characteristic of birds, yet the mechanisms through which flight ability develops are only beginning to be understood. Wing-assisted incline running (WAIR) and controlled flapping descent (CFD) are behaviors that may offer significant adaptive benefits to developing birds. Recent research into these forms of locomotion has focused on species with precocial development, with a particularly rich data set from chukar partridge (Alectoris chukar). Here we briefly review the kinematics and aerodynamics of flight development in this species...
June 28, 2017: Integrative and Comparative Biology
https://www.readbyqxmd.com/read/28661563/evaluation-of-a-new-methodology-to-simulate-damage-and-wear-of-polyethylene-hip-replacements-subjected-to-edge-loading-in-hip-simulator-testing
#16
Susan Partridge, Joanne L Tipper, Mazen Al-Hajjar, Graham H Isaac, John Fisher, Sophie Williams
Wear and fatigue of polyethylene acetabular cups have been reported to play a role in the failure of total hip replacements. Hip simulator testing under a wide range of clinically relevant loading conditions is important. Edge loading of hip replacements can occur following impingement under extreme activities and can also occur during normal gait, where there is an offset deficiency and/or joint laxity. This study evaluated a hip simulator method that assessed wear and damage in polyethylene acetabular liners that were subjected to edge loading...
June 29, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28652820/a-higher-degree-of-expression-of-dna-methyl-transferase-1-in-cervical-cancer-is-associated-with-poor-survival-outcome
#17
Chandrika J Piyathilake, Suguna Badiga, Samuel G Borak, Janaka Weragoda, Sejong Bae, Roland Matthews, Walter C Bell, Edward E Partridge
BACKGROUND: Even though novel therapies based on aberrant DNA methylation could be of particular importance for the treatment of cervical cancer (CC) because the oncoproteins E6/E7 of high-risk human papillomaviruses, the causative agents for developing CC, have the capacity to bind and upregulate DNA methyltransferases (DNMTs), to our knowledge, no previous studies have evaluated the expression of this enzyme in CC in relation to survival outcomes. The purpose of the study was to evaluate the expression of DNMT1 in CC and its association with survival outcomes...
2017: International Journal of Women's Health
https://www.readbyqxmd.com/read/28651840/the-role-of-anti-nhba-antibody-in-bactericidal-activity-elicited-by-the-meningococcal-serogroup-b-vaccine-menb-4c
#18
Elizabeth Partridge, Eduardo Lujan, Serena Giuntini, David M Vu, Dan M Granoff
BACKGROUND: MenB-4C (Bexsero®) is a multicomponent serogroup B meningococcal vaccine. For vaccine licensure, efficacy was inferred from serum bactericidal antibody (SBA) against three antigen-specific indicator strains. The bactericidal role of antibody to the fourth vaccine antigen, Neisserial Heparin binding antigen (NHba), is incompletely understood. METHODS: We identified nine adults immunized with two or three doses of MenB-4C who had sufficient volumes of sera and >3-fold increases in SBA titer against a strain with high NHba expression, which was mismatched with the other three MenB-4C antigens that elicit SBA...
June 23, 2017: Vaccine
https://www.readbyqxmd.com/read/28646344/does-biomarker-information-impact-breast-cancer-patients-preferences-and-physician-recommendation-for-adjuvant-chemotherapy
#19
Ann H Partridge, Karen Sepucha, Anne O'Neill, Kathy D Miller, Emily Baker, Chau T Dang, Donald W Northfelt, George W Sledge, Bryan P Schneider
PURPOSE: This study aimed to examine how biomarker information would impact patients' preferences and physicians' recommendations for adjuvant breast cancer therapy. METHODS: At the 18-month follow-up, participants in a large, double-blind randomized controlled trial of adjuvant chemotherapy with bevacizumab or placebo (E5103) were surveyed about their preferred treatment (either chemotherapy A alone or chemotherapy A+B) in two hypothetical scenarios: (1) without biomarker information; and (2) after learning that they tested positive for a "B-receptor" which modestly increased both the benefit and toxicity expected with chemotherapy A+B...
June 23, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28645199/do-neurobiological-understandings-of-smoking-influence-quitting-self-efficacy-or-treatment-intentions
#20
Kylie Morphett, Adrian Carter, Wayne Hall, Jayne Lucke, Brad Partridge, Coral Gartner
Introduction: Addiction is increasingly defined as a "brain disease" caused by changes to neurochemistry. While nicotine addiction has historically been excluded in the brain disease model of addiction (BDMA), it is beginning to be labelled a chronic brain disease. We investigated whether Australian smokers endorse brain-based explanations of smoking, and whether these beliefs are associated with quitting self-efficacy or treatment intentions. Method: Cross-sectional study of Australian smokers (N=1,538) who completed a survey measuring their agreement with statements on the brain's role in smoking...
June 22, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
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