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https://www.readbyqxmd.com/read/28329838/neighborhood-disadvantage-and-biological-aging-using-marginal-structural-models-to-assess-the-link-between-neighborhood-census-variables-and-epigenetic-aging
#1
Man-Kit Lei, Ronald L Simons, Steven R H Beach, Robert A Philibert
Objectives: Past research has reported an association between neighborhood disadvantage and healthy aging, but most of these studies utilize self-report measures of health or physical functioning and do not properly account for neighborhood selection effects, creating concerns regarding inflated associations. To overcome these limitations and provide a more stringent estimate of effects, the current study investigated the effect of neighborhood disadvantage on aging using newly developed epigenetic methods to assess rate of biological aging and marginal structural modeling (MSM) to account for potential confounds due to neighborhood selection...
March 3, 2017: Journals of Gerontology. Series B, Psychological Sciences and Social Sciences
https://www.readbyqxmd.com/read/28329810/wisdom-and-hard-times-the-ameliorating-effect-of-wisdom-on-the-negative-association-between-adverse-life-events-and-well-being
#2
Monika Ardelt, Dilip V Jeste
Objectives: Old age is characterized by many physical and social losses that adversely affect subjective well-being (SWB). Yet, past studies have shown that wisdom tends to be positively related to SWB in old age, particularly under adverse circumstances. We tested whether three-dimensional wisdom, measured as a combination of cognitive, reflective, and compassionate (affective) personality qualities, moderated the inverse association between adverse life events and well-being. Method: A sample of 994 adults aged 51-99 years (M = 77) from the Successful AGing Evaluation (SAGE) study and structural equation models with well-being as a latent variable were used to test the hypothesis...
October 20, 2016: Journals of Gerontology. Series B, Psychological Sciences and Social Sciences
https://www.readbyqxmd.com/read/28329784/age-related-increases-in-verbal-knowledge-are-not-associated-with-word-finding-problems-in-the-cam-can-cohort-what-you-know-won-t-hurt-you
#3
Meredith A Shafto, Lori E James, Lise Abrams, Lorraine K Tyler
Objective: We tested the claim that age-related increases in knowledge interfere with word retrieval, leading to word finding failures. We did this by relating a measure of crystallized intelligence to tip-of-the-tongue (TOT) states and picture naming accuracy. Method: Participants were from a large (N = 708), cross-sectional (aged 18-88 years), population-based sample from the Cambridge Centre for Ageing and Neuroscience cohort (Cam-CAN; www.cam-can.com). They completed (a) the Spot-the-Word Test (STW), a measure of crystallized intelligence in which participants circled the real word in word/nonword pairs, (b) a TOT-inducing task, and (c) a picture naming task...
June 30, 2016: Journals of Gerontology. Series B, Psychological Sciences and Social Sciences
https://www.readbyqxmd.com/read/28329679/mammalian-diaphanous-1-mediates-a-pathway-for-e-cadherin-to-stabilize-epithelial-barriers-through-junctional-contractility
#4
Bipul R Acharya, Selwin K Wu, Zi Zhao Lieu, Robert G Parton, Stephan W Grill, Alexander D Bershadsky, Guillermo A Gomez, Alpha S Yap
Formins are a diverse class of actin regulators that influence filament dynamics and organization. Several formins have been identified at epithelial adherens junctions, but their functional impact remains incompletely understood. Here, we tested the hypothesis that formins might affect epithelial interactions through junctional contractility. We focused on mDia1, which was recruited to the zonula adherens (ZA) of established Caco-2 monolayers in response to E-cadherin and RhoA. mDia1 was necessary for contractility at the ZA, measured by assays that include a FRET-based sensor that reports molecular-level tension across αE-catenin...
March 21, 2017: Cell Reports
https://www.readbyqxmd.com/read/28329452/effect-of-prime-blood-storage-duration-on-clinical-outcome-after-pediatric-cardiac-surgery
#5
Arvind Kumar Bishnoi, Pankaj Garg, Kartik Patel, Parth Solanki, Jigar Surti, Atul Solanki, Komal Shah, Sanjay Patel
BACKGROUND: In this study, we tested the hypothesis that in pediatric patients undergoing cardiac surgery using cardiopulmonary bypass (CPB) with blood prime, the storage duration of the packed red blood cells (PRBCs) used in prime led to differences in postoperative complications and metabolic profiles of the patients. METHODS: For this prospective observational study we included 400 pediatric patients undergoing cardiac operations using CPB and requiring PRBCs prime...
March 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28329422/patterns-in-greater-sage-grouse-population-dynamics-correspond-with-public-grazing-records-at-broad-scales
#6
Adrian P Monroe, Cameron L Aldridge, Timothy J Assal, Kari E Veblen, David A Pyke, Michael L Casazza
Human land use, such as livestock grazing, can have profound yet varied effects on wildlife interacting within common ecosystems, yet our understanding of land-use effects is often generalized from short-term, local studies that may not correspond with trends at broader scales. Here we used public land records to characterize livestock grazing across Wyoming, USA, and we used Greater Sage-grouse (Centrocercus urophasianus) as a model organism to evaluate responses to livestock management. With annual counts of male Sage-grouse from 743 leks (breeding display sites) during 2004-2014, we modeled population trends in response to grazing level (represented by a relative grazing index) and timing across a gradient in vegetation productivity as measured by the Normalized Vegetation Difference Index (NDVI)...
March 22, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28329240/effect-of-breathing-oxygen-enriched-air-on-exercise-performance-in-patients-with-precapillary-pulmonary-hypertension-randomized-sham-controlled-cross-over-trial
#7
Silvia Ulrich, Elisabeth D Hasler, Stéphanie Saxer, Michael Furian, Séverine Müller-Mottet, Stephan Keusch, Konrad E Bloch
Aims: The purpose of the current trial was to test the hypothesis that breathing oxygen-enriched air increases exercise performance of patients with pulmonary arterial or chronic thrombo-embolic pulmonary hypertension (PAH/CTEPH) and to investigate involved mechanisms. Methods and results: Twenty-two patients with PAH/CTEPH, eight women, means ± SD 61 ± 14 years, resting mPAP 35 ± 9mmHg, PaO2 ambient air >7.3 kPa, underwent four bicycle ergospirometries to exhaustion on different days, while breathing oxygen-enriched (FiO2 0...
March 11, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28329122/prognostic-implications-of-left-ventricular-asymmetry-in-patients-with-asymptomatic-aortic-valve-stenosis
#8
Per Ejlstrup Sigvardsen, Linnea Hornbech Larsen, Helle Gervig Carstensen, Mathias Sørgaard, Louise Hindsø, Christian Hassager, Lars Køber, Rasmus Møgelvang, Klaus Fuglsang Kofoed
Aims: Left ventricular (LV) regional hypertrophy in the form of LV asymmetry is a common finding in patients with aortic valve stenosis. The aim of this study was to test the hypothesis that LV asymmetry predicts future symptomatic status and indication for aortic valve replacement (AVR) in patients with asymptomatic aortic valve stenosis. Methods and results: In total, 114 patients with asymptomatic aortic valve stenosis (peak velocity > 2.5 m/s assessed by echocardiographic screening and LV ejection fraction > 50%) were enrolled in the study...
February 18, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28329104/vascular-cerebral-damage-in-frail-older-adults-the-amimage-study
#9
José Alberto Avila-Funes, Amandine Pelletier, Céline Meillon, Gwénaëlle Catheline, Olivier Periot, Irene Trevin O-Frenk, Magali Gonzalez-Colaço, Jean-François Dartigues, Karine Pérès, Michèle Allard, Bixente Dilharreguy, Hélène Amieva
Background: Frailty has been associated with increased risk of adverse-health related outcomes including cognitive impairment. However, little is know about the pathogenesis relating frailty to cognitive decline. Therefore, the main objective of this study was to investigate the association between vascular cerebral damage and frailty. Methods: Cross-sectional study involving 176 community-dwelling participants aged 67-86 years, participating in the AMImage Study, an ancillary neuro-imaging project of the AMI cohort, a French prospective cohort including older farmers living in rural areas...
January 21, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28329099/effect-of-sleeping-position-on-upper-airway-patency-in-obstructive-sleep-apnea-is-determined-by-the-pharyngeal-structure-causing-collapse
#10
Melania Marques, Pedro R Genta, Scott A Sands, Ali Azarbazin, Camila de Melo, Luigi Taranto-Montemurro, David P White, Andrew Wellman
Objectives: In some patients, obstructive sleep apnea (OSA) can be resolved with improvement in pharyngeal patency by sleeping lateral rather than supine, possibly as gravitational effects on the tongue are relieved. Here we tested the hypothesis that the improvement in pharyngeal patency depends on the anatomical structure causing collapse, with patients with tongue-related obstruction and epiglottic collapse exhibiting preferential improvements. Methods: Twenty-four OSA patients underwent upper airway endoscopy during natural sleep to determine the pharyngeal structure associated with obstruction, with simultaneous recordings of airflow and pharyngeal pressure...
January 31, 2017: Sleep
https://www.readbyqxmd.com/read/28329002/emergency-department-outpatient-treatment-of-alcohol-intoxicated-bicyclists-increases-the-cost-of-medical-care-in-japan
#11
Yosuke Homma, Sunao Yamauchi, Michiko Mizobe, Yoshiyuki Nakashima, Jin Takahashi, Hiraku Funakoshi, Kevin Y Urayama, Sachiko Ohde, Osamu Takahashi, Takashi Shiga
Riding a bicycle under the influence of alcohol is illegal in Japan. Nevertheless, intoxicated bicyclists are frequently treated at hospital emergency departments for bicycle-related injuries. This patient population usually requires more hospital resources, even for relatively minor injuries. Therefore, we hypothesized that bicycle-related crashes involving bicyclists under the influence of alcohol cost more to treat than those that do not involve alcohol intoxication. The aim of the present study was to examine the costs associated with bicycle-related minor injuries and alcohol intoxication of the bicyclist...
2017: PloS One
https://www.readbyqxmd.com/read/28329001/experimental-demonstration-of-the-possible-role-of-acanthamoeba-polyphaga-in-the-infection-and-disease-progression-in-buruli-ulcer-bu-using-icr-mice
#12
Bright K Azumah, Phyllis G Addo, Alfred Dodoo, Gordon Awandare, Lydia Mosi, Daniel A Boakye, Michael D Wilson
The transmission of Buruli ulcer (BU), caused by Mycobacterium ulcerans (MU), remains puzzling although a number of hypothesis including through bites of infected aquatic insects have been proposed. We report the results of experiments using ICR mice that give credence to our hypothesis that Acanthamoeba species may play a role in BU transmission. We cocultured MU N2 and MU 1615 which expresses red fluorescent protein (RFP) and Acanthamoeba polyphaga (AP), and confirmed infected AP by Ziehl-Neelsen (ZN) staining...
2017: PloS One
https://www.readbyqxmd.com/read/28328979/to-boost-or-to-crunch-effect-of-effortful-encoding-on-episodic-memory-in-older-adults-is-dependent-on-executive-functioning
#13
Li Fu, Joseph H R Maes, Roy P C Kessels, Sander M Daselaar
It is essential to develop effective interventions aimed at ameliorating age-related cognitive decline. Previous studies found that effortful encoding benefits episodic memory in older adults. However, to date it is unclear whether this benefit is different for individuals with strong versus weak executive functioning (EF). Fifty-one older adults were recruited and divided into low (N = 26) and high (N = 25) functioning groups, based on their EF capacity. All participants performed a semantic and a perceptual incidental encoding task...
2017: PloS One
https://www.readbyqxmd.com/read/28328975/a-new-species-of-argyromys-rodentia-mammalia-from-the-oligocene-of-the-valley-of-lakes-mongolia-its-importance-for-palaeobiogeographical-homogeneity-across-mongolia-china-and-kazakhstan
#14
Paloma López-Guerrero, Olivier Maridet, Zhaoqun Zhang, Gudrun Daxner-Höck
We describe a new species of Rodentia (Mammalia), Argyromys cicigei sp. nov. from Toglorhoi (fossil bed TGW-A/2a) in Mongolia and Ulantatal (fossil beds UTL 1 and UTL 7) in China. Its tooth morphology differs from the type species Argyromys aralensis from Akespe in Kazakhstan by smaller size and simpler structures. Argyromys has been assigned in different families of Muroidea, such as Tachyoryctoididae and Spalacidae. However, the presence of common characters indicates a closer relationship of Argyromys with the genera of Cricetidae s...
2017: PloS One
https://www.readbyqxmd.com/read/28328872/the-role-of-the-iacuc-in-ensuring-research-reproducibility
#15
REVIEW
Jerald Silverman, James Macy, Patricia A Preisig
There is a "village" of people impacting research reproducibility, such as funding panels, the IACUC and its support staff, institutional leaders, investigators, veterinarians, animal facilities, and professional journals. IACUCs can contribute to research reproducibility by ensuring that reviews of animal use requests, program self-assessments and post-approval monitoring programs are sufficiently thorough, the animal model is appropriate for testing the hypothesis, animal care and use is conducted in a manner that is compliant with external and institutional requirements, and extraneous variables are minimized...
March 22, 2017: Lab Animal
https://www.readbyqxmd.com/read/28328758/posttransfusion-increase-of-hematocrit-per-se-does-not-improve-circulatory-oxygen-delivery-due-to-increased-blood-viscosity
#16
Robert Zimmerman, Amy G Tsai, Beatriz Y Salazar Vázquez, Pedro Cabrales, Axel Hofmann, Jens Meier, Aryeh Shander, Donat R Spahn, Joel M Friedman, Daniel M Tartakovsky, Marcos Intaglietta
BACKGROUND: Blood transfusion is used to treat acute anemia with the goal of increasing blood oxygen-carrying capacity as determined by hematocrit (Hct) and oxygen delivery (DO2). However, increasing Hct also increases blood viscosity, which may thus lower DO2 if the arterial circulation is a rigid hydraulic system as the resistance to blood flow will increase. The net effect of transfusion on DO2 in this system can be analyzed by using the relationship between Hct and systemic blood viscosity of circulating blood at the posttransfusion Hct to calculate DO2 and comparing this value with pretransfusion DO2...
March 21, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28328756/pectoralis-and-serratus-fascial-plane-blocks-each-provide-early-analgesic-benefits-following-ambulatory-breast-cancer-surgery-a-retrospective-propensity-matched-cohort-study
#17
Faraj W Abdallah, David MacLean, Caveh Madjdpour, Tulin Cil, Anuj Bhatia, Richard Brull
BACKGROUND: Pectoralis and serratus blocks have been described recently for use in breast surgery, but evidence supporting their analgesic benefits is limited. This cohort study evaluates the benefits of adding a pectoralis or serratus block to conventional opioid-based analgesia (control) in patients who underwent ambulatory breast cancer surgery at Women's College Hospital between July 2013 and May 2015. We tested the joint hypothesis that adding a pectoralis or serratus block reduced postoperative in-hospital (predischarge) opioid consumption and nausea and vomiting (PONV)...
March 21, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28328656/psychological-reactions-social-support-and-coping-styles-in-pakistani-female-burn-survivors
#18
Samreen Idrees, Fayyaz Ahmad Faize, Mubeen Akhtar
This study was aimed to explore the level of psychological distress and posttraumatic stress among female burn survivors in Pakistan. It was also intended to study the kind of social support available to these burn survivors in a society where women right violation is common. The sample consisted of 35 female burn victims selected from two hospitals. General Health Questionnaire, posttraumatic stress disorder Checklist-Specific, and Social Support Scale were used to measure study variables in addition to a short open-ended questionnaire to identify coping strategies of these burn survivors...
March 15, 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/28328648/the-economic-and-clinical-impact-of-sustained-use-of-a-progressive-mobility-program-in-a-neuro-icu
#19
Jeannette M Hester, Peggy R Guin, Gale D Danek, Jaime R Thomas, William L Titsworth, Richard K Reed, Terrie Vasilopoulos, Brenda G Fahy
OBJECTIVE: To investigate a progressive mobility program in a neurocritical care population with the hypothesis that the benefits and outcomes of the program (e.g., decreased length of stay) would have a significant positive economic impact. DESIGN: Retrospective analysis of economic and clinical outcome data before, immediately following, and 2 years after implementation of the Progressive Upright Mobility Protocol Plus program (UF Health Shands Hospital, Gainesville, FL) involving a series of planned movements in a sequential manner with an additional six levels of rehabilitation in the neuro-ICU at UF Health Shands Hospital...
March 21, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28328303/the-role-of-pain-in-quitting-among-human-immunodeficiency-virus-hiv-positive-smokers-enrolled-in-a-smoking-cessation-trial
#20
Carrie J Aigner, Ellen R Gritz, Irene Tamí-Maury, George P Baum, Roberto C Arduino, Damon J Vidrine
BACKGROUND: Smoking rates among people living with human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS; PLWHA) are at least twice as high as rates in the general population. Consistent with the reciprocal model of pain and smoking, PLWHA with pain who smoke may use smoking as a means of coping with pain, thus presenting a potential barrier to quitting. The aim of this study is to better understand how pain relates to smoking cessation among 474 HIV-positive adults enrolled in a cell phone-delivered smoking cessation trial...
February 8, 2017: Substance Abuse
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