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https://www.readbyqxmd.com/read/29150978/mice-lacking-a-functional-nmda-receptor-exhibit-social-subordination-in-a-group-housed-environment
#1
Waka Ujita, Ayako Kohyama-Koganeya, Nozomi Endo, Toki Saito, Hiroshi Oyama
Social dominance, in which an individual asserts control over others or benefits most after social conflict, has an influence on social behaviour. However, the mechanisms mediating social dominance remain unclear. Social dominance within social groups determines the distribution of rewards such as food and access to mating partners, which can act as reinforcers. In this study, we used the water competition test to determine whether mice were dominant or subordinate. We have previously reported that mice heterozygous for a missense mutation in Grin1 (Grin1(Rgsc174) ) showed altered social behaviour, with increased locomotor activity, novelty-seeking and anxiety...
November 18, 2017: FEBS Journal
https://www.readbyqxmd.com/read/29150949/chromium-hazard-and-risk-assessment-new-insights-from-a-detailed-speciation-study-in-a-standard-test-medium
#2
Imad Aharchaou, Jean-Sebastien Py, Sebastien Cambier, Jean-Luc Loizeau, Geert Cornelis, Philippe Rousselle, Eric Battaglia, Davide A L Vignati
Despite the consensus about the importance of chemical speciation in controlling the bioavailability and ecotoxicity of trace elements, detailed speciation studies during laboratory ecotoxicity testing remain scarce, contributing to uncertainty when extrapolating laboratory findings to real field situations in risk assessment. We characterized the speciation and ecotoxicological effects of Cr(III) and Cr(VI) in the ISO medium for algal ecotoxicity testing. Total and dissolved (<0.22 μm) Cr concentrations showed little variability in media spiked with Cr(VI) , while dissolved Cr concentration decreased by as much as 80% over 72 hours in medium amended with Cr(III) ...
November 18, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/29150722/cross-lagged-analysis-of-interplay-between-differential-traits-in-sibling-pairs-validation-and-application-to-parenting-behavior-and-adhd-symptomatology
#3
Arden Moscati, Brad Verhulst, Kevin McKee, Judy Silberg, Lindon Eaves
Understanding the factors that contribute to behavioral traits is a complex task, and partitioning variance into latent genetic and environmental components is a useful beginning, but it should not also be the end. Many constructs are influenced by their contextual milieu, and accounting for background effects (such as gene-environment correlation) is necessary to avoid bias. This study introduces a method for examining the interplay between traits, in a longitudinal design using differential items in sibling pairs...
November 17, 2017: Behavior Genetics
https://www.readbyqxmd.com/read/29150372/duration-of-group-a-streptococcus-pcr-positivity-following-antibiotic-treatment-of-pharyngitis
#4
Jason H Homme, Corryn S Greenwood, Lisa B Cronk, Lisa M Nyre, James R Uhl, Amy L Weaver, Robin Patel
BACKGROUND: Polymerase chain reaction (PCR) has high sensitivity and specificity for detection of group A streptococcus (GAS) in throat swabs and is routinely used for GAS pharyngitis diagnosis at our institution. Herein we defined the natural history of throat swab GAS PCR and culture positivity during and following treatment of GAS pharyngitis. METHODS: Fifty children with a PCR positive GAS throat swab were recruited for participation. Four additional throat swabs were collected over 2 weeks following the initial positive PCR result (during and following a standard course of antibiotic therapy) and tested for GAS using rapid real-time PCR and culture...
October 12, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/29150289/the-cause-of-multiple-sclerosis-is-autoimmune-attack-of-adenosyltransferase-thereby-limiting-adenosylcobalamin-production
#5
J L Boucher
The pathogenesis of multiple sclerosis (MS) begins with an infection by a bacterium from the class of bacteria that produce and utilize adenosylcobalamin (AdoCbl) and possess an adenosyl transferase enzyme (ATR); these bacteria are the exogenous antigens that cause MS. Human ATR is homologous to bacterial ATR and B cells produce anti-ATR antibodies as an autoimmune response thereby reducing the concentration of ATR and thus limiting production of AdoCbl, one of the two bioactive forms of vitamin B12. The next step in MS pathogenesis is a period of subclinical AdoCbl deficiency over a period of many years resulting in production of odd-carbon-number fatty acids that are incorporated into myelin rendering it antigenic...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29150284/the-displacing-foods-of-modern-commerce-are-the-primary-and-proximate-cause-of-age-related-macular-degeneration-a-unifying-singular-hypothesis
#6
Chris A Knobbe, Marija Stojanoska
Age-related macular degeneration (AMD) is the leading cause of irreversible vision loss and blindness in developed nations. AMD is anticipated to affect 196 million people worldwide, by 2020. However, the etiology of this disease remains unknown. Aging, genetic, and environmental influences have generally been implicated as major etiologic factors. We sought to examine the hypothesis that consumption of the 'displacing foods of modern commerce,' which equate to processed, nutrient-deficient and potentially toxic foods, may be the primary and proximate cause of AMD...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29150251/validity-of-birth-certificate-and-hospital-discharge-data-reporting-of-labor-induction
#7
Kristen H Kjerulff, Laura B Attanasio
PURPOSE: To examine the concordance of labor induction measures derived from birth certificate and hospital discharge data with each other and with maternal report. METHODS: Birth certificate data were linked with hospital discharge data and structured interviews of 2,851 mothers conducted 1 month after first childbirth. Those who reported that a doctor or nurse tried to cause their labor to begin, and were not in labor before that event, were classified as undergoing labor induction...
November 14, 2017: Women's Health Issues: Official Publication of the Jacobs Institute of Women's Health
https://www.readbyqxmd.com/read/29150149/pregnancy-and-heart-disease-pregnancy-associated-hypertension-and-peripartum-cardiomyopathy
#8
Tobias Jonathan Pfeffer, Denise Hilfiker-Kleiner
Cardiovascular diseases are major complications in pregnancy worldwide and the number of patients who develop cardiac problems during pregnancy is increasing. Pregnancy-associated hypertensive complications such as pre-eclampsia (PE) or peripartum cardiomyopathy (PPCM) are potentially life-threatening heart diseases emerging during pregnancy, under delivery or in the first postpartal months in previously healthy women. Both disease entities display substantial morbidity and mortality in the acute phase. Long-term effects are just beginning to be evaluated...
October 31, 2017: Current Problems in Cardiology
https://www.readbyqxmd.com/read/29150000/towards-a-unitary-approach-to-human-action-control
#9
REVIEW
Bernhard Hommel, Reinout W Wiers
From its academic beginnings the theory of human action control has distinguished between endogenously driven, intentional action and exogenously driven, habitual, or automatic action. We challenge this dual-route model and argue that attempts to provide clear-cut and straightforward criteria to distinguish between intentional and automatic action have systematically failed. Specifically, we show that there is no evidence for intention-independent action, and that attempts to use the criterion of reward sensitivity and rationality to differentiate between intentional and automatic action are conceptually unsound...
December 2017: Trends in Cognitive Sciences
https://www.readbyqxmd.com/read/29149938/novel-interventions-what-s-new-and-the-future
#10
REVIEW
Jean-Louis Vincent, David Grimaldi
Despite decades of sepsis research, no specific therapies for sepsis have emerged and current management still relies on source control, antibiotics, and organ support. With improved understanding of sepsis pathophysiology and the development of new techniques to enable better characterization of patients with sepsis, clinical trials are beginning to better target new interventions at those patients most likely to respond. This article discusses advances in sepsis therapeutics designed to improve endothelial cell function, purify the blood to help restore immune homeostasis, and provide immunostimulation for patients with immune exhaustion...
January 2018: Critical Care Clinics
https://www.readbyqxmd.com/read/29149747/analysis-of-effect-of-particles-on-cake-layer-compressibility-during-ultrafiltration-of-upflow-biological-activated-carbon-effluent
#11
Lu Ao, Wenjun Liu, Minglu Zhang, Xiaomao Wang
Three different hollow-fibre ultrafiltration (UF) membranes were applied to treat upflow biological activated carbon (UBAC) effluent to determine the characteristics of membrane biofouling by microorganisms and particles. At the beginning of filtration, the cake layer formed on the membrane was loose and highly compressible, and the trans-membrane pressure (TMP) rapidly increased. When compressed to a certain extent, cake layer with low compressibility was formed by the accumulated particles and resulted in slower TMP increment...
November 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29149622/the-chemokine-receptor-type-4-antagonist-amd3100-interrupts-experimental-tooth-movement-in-rats
#12
Kasumi Hatano, Yuji Ishida, Hiroyuki Yamaguchi, Jun Hosomichi, Jun-Ichi Suzuki, Risa Usumi-Fujita, Yasuhiro Shimizu, Naoki Shibutani, Sawa Kaneko, Takashi Ono
OBJECTIVE: The aim of this study was to clarify the role of the stromal cell-derived factor-1 (SDF-1)/C-X-C chemokine receptor type 4 (CXCR4) axis in osteoclast accumulation, and the influence of orthodontic tooth movement (OTM) under mechanical force application to periodontal tissues, by administration of the CXCR4 antagonist AMD3100. DESIGN: The upper right first molar (M1) of rats was moved mesially with a 10-g force titanium-nickel closed coil spring. Rats were treated with phosphate-buffered saline or AMD3100 (5mg/kg), which is a SDF-1 antagonist...
November 11, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/29149580/will-analytics-suppress-a-diversity-of-ideas-in-psychological-science
#13
Eve De Rosa
In this article, I suggest that an overreliance on analytics to assess faculty productivity and the diffusion of ideas may inadvertently suppress innovation. Even when these productivity-diffusion metrics are used to promote an individual's work, the use of such external guideposts may bias scientific choices and curb a psychological scientist's earnest inclination to synthesize or take scientific risks. Analytics are not inert but can change the path and progress of science itself, potentially reducing the diversity of ideas in psychological science...
November 2017: Perspectives on Psychological Science: a Journal of the Association for Psychological Science
https://www.readbyqxmd.com/read/29149477/pathfinders-in-oncology-from-the-beginning-of-the-19th-century-to-the-inauguration-of-the-first-cancer-hospital-in-the-united-states
#14
Steven I Hajdu
The fields of medicine and oncology made substantial progress between 1800 and 1885. The first half of this period was dominated by the spectacular progress in physiology, cytology, histology, histopathology, and diagnostic microscopy. In the second half of the period, advancements in surgical techniques, anesthesia, asepsis, and laboratory medicine, including bacteriology, chemistry, and biochemistry, led to the development of medical specialties, including surgical pathology and surgical oncology. Although wars, revolutions, and socioeconomic upheavals interrupted the daily life of the populace, distinguished artists, scientists, and physicians continued, against all odds, to advance their field of interest...
November 17, 2017: Cancer
https://www.readbyqxmd.com/read/29149379/efficacy-of-systemic-and-intratympanic-corticosteroid-combination-therapy-versus-intratympanic-or-systemic-therapy-in-patients-with-idiopathic-sudden-sensorineural-hearing-loss-a-randomized-controlled-trial
#15
Mohammadtaghi Khorsandi Ashtiani, Farzad Firouzi, Shahin Bastaninejad, Sasan Dabiri, Sevil Nasirmohtaram, Niloufar Saeedi, Hossein Ghazavi, Leyla Sahebi
OBJECTIVE: The present study was conducted to compare the rates of recovery from idiopathic sudden deafness after the treatment with oral and intratympanic corticosteroids in both mono and combination therapies. STUDY DESIGN: Triple-blind randomized clinical trial. SETTINGS: Tertiary referral hospital. SUBJECTS AND METHODS: A total of 112 patients who were admitted to the ENT emergency department randomly divided into three groups: an oral corticosteroid plus intratympanic placebo (systemic corticosteroid monotherapy group); an intratympanic corticosteroid plus oral placebo group (IT monotherapy group); and a combination therapy group (IT plus systemic combination group)...
November 17, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29149276/urban-renewal-gentrification-and-health-equity-a-realist-perspective
#16
Roshanak Mehdipanah, Giulia Marra, Giulia Melis, Elena Gelormino
Background: Up to now, research has focused on the effects of urban renewal programs and their impacts on health. While some of this research points to potential negative health effects due to gentrification, evidence that addresses the complexity associated with this relation is much needed. This paper seeks to better understand when, why and how health inequities arise from urban renewal interventions resulting in gentrification. Methods: A realist review, a qualitative systematic review method, aimed to better explain the relation between context, mechanism and outcomes, was used...
November 15, 2017: European Journal of Public Health
https://www.readbyqxmd.com/read/29149151/sacroplasty-a-ten-year-analysis-of-prospective-patients-treated-with-percutaneous-sacroplasty-literature-review-and-technical-considerations
#17
Michael E Frey, Christopher Warner, Samuel M Thomas, Karan Johar, Heathpaul Singh, Maheen S Mohammad, Douglas P Beall
BACKGROUND: The treatment of sacral fractures has evolved since its first description in 1982. Several techniques for sacral augmentation have been developed since 2001, and the rate of improvement is rapid with over 50% reduction in pain achieved prior to post-procedure discharge of the patient. Pain reduction occurs primarily within the first 3 months and is sustained at 12 months; however, the long-term outcomes have not previously been studied. OBJECTIVES: We aim to evaluate the long-term efficacy of sacroplasty versus non-surgical management (NSM) in treating sacral insufficiency fractures (SIFs), including the effect on pain relief, opioid and other analgesic use, patient satisfaction, and complication rates...
November 2017: Pain Physician
https://www.readbyqxmd.com/read/29149124/how-do-you-adapt-your-plans-for-a-nursing-career-when-the-unexpected-occurs
#18
Nadia Spawn
I graduated nursing school seven months pregnant in November 2015. My plans were to take the NCLEX immediately, give birth, take three months to adjust, and begin my nursing career in a glamorous emergency department position by the spring.
 Fast forward to January 2016. My family lost three members in a car accident and my daughter was born high-needs, requiring multiple hospitalizations. Although she and my family needed me, I was anxious about taking too much time off after nursing school, which could delay my career advancement...
December 1, 2017: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/29148914/marginal-gap-formation-in-approximal-bulk-fill-resin-composite-restorations-after-artificial-ageing
#19
A Peutzfeldt, S Mühlebach, A Lussi, S Flury
The aim of this in vitro study was to investigate the marginal gap formation of a packable "regular" resin composite (Filtek Supreme XTE [3M ESPE]) and two flowable "bulk fill" resin composites (Filtek Bulk Fill [3M ESPE] and SDR [DENTSPLY DeTrey]) along the approximal margins of Class II restorations. In each of 39 extracted human molars (n=13 per resin composite), mesial and distal Class II cavities were prepared, placing the gingival margins below the cemento-enamel junction. The cavities were restored with the adhesive system OptiBond FL (Kerr) and one of the three resin composites...
November 17, 2017: Operative Dentistry
https://www.readbyqxmd.com/read/29148786/n-alkanethiols-directly-grown-on-a-bare-si-111-surface-from-disordered-to-ordered-transition
#20
Lo-Yueh Chang, Yen-Chien Kuo, Hung Wei Shiu, Chia-Hsin Wang, Yao-Chang Lee, Yaw-Wen Yang, Shangjr Gwo, Chia-Hao Chen
We observed the growth phase transition of n-alkanethiols (AT), CH3(CH2)n-1SH, n = 4 ~16, directly implanted on a bare Si(111) surface, forming an AT monolayer. These monolayers were characterized with static water-contact angle, high-resolution X-ray photoelectron spectroscopy, near-edge X-ray fine-structure spectroscopy and grazing-angle reflection absorption Fourier-transform infrared spectroscopy. The integrated spectral results indicated that the implanted n-AT molecules formed a self-oriented and densely packed monolayer through formation of an S-Si bond...
November 17, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
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