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https://www.readbyqxmd.com/read/28327790/association-of-nr1i2-gene-polymorphisms-and-time-of-progression-to-aids
#1
Rúbia Marília de Medeiros, Carolina Fialho Menti, Jéssica Louise Benelli, Maria Cristina Cotta Matte, Marineide Gonçalves de Melo, Sabrina Esteves de Matos Almeida, Marilu Fiegenbaum
BACKGROUND: The time of progression towards AIDS can vary greatly among seropositive patients, and may be associated with host genetic variation. The NR1I2 (PXR) gene, a ligand-activated transcription factor, regulates the transcription immune pathway genes and can therefore be targets of viral replication mechanisms influencing time of progression to AIDS. OBJECTIVE: To verify the association of single nucleotide polymorphisms (SNPs) rs3814057, rs6785049, rs7643645, and rs2461817 in the NR1I2 (PXR) gene with progression to AIDS in HIV-1 infected patients...
April 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/28326036/associations-between-early-markers-of-parkinson-s-disease-and-sarcopenia
#2
Michael Drey, Sandra E Hasmann, Jan-Peter Krenovsky, Markus A Hobert, Stefanie Straub, Morad Elshehabi, Anna-Katharina von Thaler, Andreas J Fallgatter, Gerhard W Eschweiler, Ulrike Suenkel, Daniela Berg, Walter Maetzler
Introduction: Sarcopenia and Parkinson's disease (PD) are both common age-related syndromes, and there is preliminary evidence that the probability of the co-occurrence of these syndromes within one individual is higher than expected. However, it is unclear to date whether one of the syndromes induces the other, or whether there may be common underlying causes. This pilot study thus aimed at investigating the association of the features of increased risk for PD with early stage sarcopenia (ESS). Method: Two hundred and fifty-five community-dwelling individuals were recruited from the Tübinger evaluation of Risk factors for Early detection of NeuroDegeneration (TREND) study...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28326016/early-origin-and-evolution-of-the-angelman-syndrome-ubiquitin-ligase-gene-ube3a
#3
REVIEW
Masaaki Sato
The human Ube3a gene encodes an E3 ubiquitin ligase and exhibits brain-specific genomic imprinting. Genetic abnormalities that affect the maternal copy of this gene cause the neurodevelopmental disorder Angelman syndrome (AS), which is characterized by severe mental retardation, speech impairment, seizure, ataxia and some unique behavioral phenotypes. In this review article, I highlight the evolution of the Ube3a gene and its imprinting to provide evolutionary insights into AS. Recent comparative genomic studies have revealed that Ube3a is most phylogenetically similar to HECTD2 among the human HECT (homologous to the E6AP carboxyl terminus) family of E3 ubiquitin ligases, and its distant evolutionary origin can be traced to common ancestors of fungi and animals...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28324915/alcohol-related-blackouts-negative-alcohol-related-consequences-and-motivations-for-drinking-reported-by-newly-matriculating-transgender-college-students
#4
Larry A Tupler, Daniel Zapp, William DeJong, Maryam Ali, Sarah O'Rourke, John Looney, H Scott Swartzwelder
BACKGROUND: Many transgender college students struggle with identity formation and other emotional, social, and developmental challenges associated with emerging adulthood. A potential maladaptive coping strategy employed by such students is heavy drinking. Prior literature has suggested greater consumption and negative alcohol-related consequences (ARCs) in transgender students compared with their cisgender peers, but little is known about their differing experiences with alcohol-related blackouts (ARBs)...
March 21, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28324302/huntington-s-disease-update-on-treatments
#5
REVIEW
Kara J Wyant, Andrew J Ridder, Praveen Dayalu
Huntington's disease (HD) is an autosomal dominantly inherited neurodegenerative disease characterized by progressive motor, behavioral, and cognitive decline, ending in death. Despite the discovery of the underlying genetic mutation more than 20 years ago, treatment remains focused on symptomatic management. Chorea, the most recognizable symptom, responds to medication that reduces dopaminergic neurotransmission. Psychiatric symptoms such as depression and anxiety may also respond well to symptomatic therapies...
April 2017: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/28323839/on-dna-numerical-representations-for-genomic-similarity-computation
#6
Gerardo Mendizabal-Ruiz, Israel Román-Godínez, Sulema Torres-Ramos, Ricardo A Salido-Ruiz, J Alejandro Morales
Genomic signal processing (GSP) refers to the use of signal processing for the analysis of genomic data. GSP methods require the transformation or mapping of the genomic data to a numeric representation. To date, several DNA numeric representations (DNR) have been proposed; however, it is not clear what the properties of each DNR are and how the selection of one will affect the results when using a signal processing technique to analyze them. In this paper, we present an experimental study of the characteristics of nine of the most frequently-used DNR...
2017: PloS One
https://www.readbyqxmd.com/read/28321439/overexpression-of-parkinson-s-disease-associated-mutation-lrrk2-g2019s-in-mouse-forebrain-induces-behavioral-deficits-and-%C3%AE-synuclein-pathology
#7
Yulan Xiong, Stewart Neifert, Senthilkumar S Karuppagounder, Jeannette N Stankowski, Byoung Dae Lee, Jonathan C Grima, Guanxing Chen, Han Seok Ko, Yunjong Lee, Debbie Swing, Lino Tessarollo, Ted M Dawson, Valina L Dawson
Mutations in the leucine-rich repeat kinase 2 (LRRK2) gene have been identified as an unambiguous cause of late-onset, autosomal-dominant familial Parkinson's disease (PD) and LRRK2 mutations are the strongest genetic risk factor for sporadic PD known to date. A number of transgenic mice expressing wild-type or mutant LRRK2 have been described with varying degrees of LRRK2-related abnormalities and modest pathologies. None of these studies directly addressed the role of the kinase domain in the changes observed and none of the mice present with robust features of the human disease...
March 2017: ENeuro
https://www.readbyqxmd.com/read/28321198/the-vivid-present-visualization-abilities-are-associated-with-steep-discounting-of-future-rewards
#8
Trishala Parthasarathi, Mairead H McConnell, Jeffrey Luery, Joseph W Kable
Humans and other animals discount the value of future rewards, a phenomenon known as delay discounting. Individuals vary widely in the extent to which they discount future rewards, and these tendencies have been associated with important life outcomes. Recent studies have demonstrated that imagining the future reduces subsequent discounting behavior, but no research to date has examined whether a similar principle applies at the trait level, and whether training visualization changes discounting. The current study examined if individual differences in visualization abilities are linked to individual differences in discounting and whether practicing visualization can change discounting behaviors in a lasting way...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28320473/which-neural-mechanisms-mediate-the-effects-of-a-parenting-intervention-program-on-parenting-behavior-design-of-a-randomized-controlled-trial
#9
Laura Kolijn, Saskia Euser, Bianca G van den Bulk, Renske Huffmeijer, Marinus H van IJzendoorn, Marian J Bakermans-Kranenburg
BACKGROUND: The Video-feedback Intervention to promote Positive Parenting and Sensitive Discipline (VIPP-SD) has proven effective in increasing parental sensitivity. However, the mechanisms involved are largely unknown. In a randomized controlled trial we examine parental neurocognitive factors that may mediate the intervention effects on parenting behavior. Our aims are to (1) examine whether the intervention influences parents' neural processing of children's emotional expressions and the neural precursors of response inhibition and to (2) test whether neural changes mediate intervention effects on parenting behavior...
March 21, 2017: BMC Psychology
https://www.readbyqxmd.com/read/28319229/patient-mortality-during-unannounced-accreditation-surveys-at-us-hospitals
#10
Michael L Barnett, Andrew R Olenski, Anupam B Jena
Importance: In the United States, hospitals receive accreditation through unannounced on-site inspections (ie, surveys) by The Joint Commission (TJC), which are high-pressure periods to demonstrate compliance with best practices. No research has addressed whether the potential changes in behavior and heightened vigilance during a TJC survey are associated with changes in patient outcomes. Objective: To assess whether heightened vigilance during survey weeks is associated with improved patient outcomes compared with nonsurvey weeks, particularly in major teaching hospitals...
March 20, 2017: JAMA Internal Medicine
https://www.readbyqxmd.com/read/28318462/the-epidemiology-of-operation-stress-during-continuing-promise-2011-a-humanitarian-response-and-disaster-relief-mission-aboard-a-us-navy-hospital-ship
#11
William T Scouten, Melissa L Mehalick, Elizabeth Yoder, Andrea McCoy, Tracy Brannock, Mark S Riddle
Introduction Operational stress describes individual behavior in response to the occupational demands and tempo of a mission. The stress response of military personnel involved in combat and peace-keeping missions has been well-described. The spectrum of effect on medical professionals and support staff providing humanitarian assistance, however, is less well delineated. Research to date concentrates mainly on shore-based humanitarian missions. Problem The goal of the current study was to document the pattern of operational stress, describe factors responsible for it, and the extent to which these factors impact job performance in military and civilian participants of Continuing Promise 2011 (CP11), a ship-based humanitarian medical mission...
March 20, 2017: Prehospital and Disaster Medicine
https://www.readbyqxmd.com/read/28316772/neural-circuitry-at-age-6%C3%A2-months-associated-with-later-repetitive-behavior-and-sensory-responsiveness-in-autism
#12
Jason J Wolff, Meghan R Swanson, Jed T Elison, Guido Gerig, John R Pruett, Martin A Styner, Clement Vachet, Kelly N Botteron, Stephen R Dager, Annette M Estes, Heather C Hazlett, Robert T Schultz, Mark D Shen, Lonnie Zwaigenbaum, Joseph Piven
BACKGROUND: Restricted and repetitive behaviors are defining features of autism spectrum disorder (ASD). Under revised diagnostic criteria for ASD, this behavioral domain now includes atypical responses to sensory stimuli. To date, little is known about the neural circuitry underlying these features of ASD early in life. METHODS: Longitudinal diffusion tensor imaging data were collected from 217 infants at high familial risk for ASD. Forty-four of these infants were diagnosed with ASD at age 2...
2017: Molecular Autism
https://www.readbyqxmd.com/read/28315898/modifiable-risk-factors-and-interventions-for-childhood-obesity-prevention-within-the-first-1-000-days
#13
Anne M Dattilo
Worldwide, the prevalence of childhood obesity has increased, amounting to 42 million overweight or obese children, and there is increasing evidence that the origins are within the first 1,000 days: the period of conception through 2 years. Antecedents of early childhood obesity are multifactorial, and associations of varying strength have been documented for genetic/epigenetic, biologic, dietary, environmental, social, and behavioral influences. Modifiable factors in pregnancy and early infancy associated with childhood obesity include maternal overweight/obesity, maternal smoking, gestational weight gain, infant and young child feeding, caregiver responsive feeding practices, as well as sleep duration, and physical activity...
2017: Nestlé Nutrition Institute Workshop Series
https://www.readbyqxmd.com/read/28315892/fortification-of-complementary-foods-a-review-of-products-and-program-delivery
#14
Lynnette M Neufeld, Saskia J M Osendarp, Wendy Gonzalez
Fortified complementary foods (FCF) and home fortificants - single-sachet micronutrient powders (MNP) or small-quantity lipid-based nutrient supplements (SQ-LNS) to be added to a child's food immediately before consumption - have been shown to be efficacious to improve the micronutrient status and some functional outcomes in children 6-23 months of age. The objective of this chapter is to describe and discuss the latest advances related to the composition and delivery of FCF products, including home and commercial fortification...
2017: Nestlé Nutrition Institute Workshop Series
https://www.readbyqxmd.com/read/28315760/medication-adherence-outcomes-of-771-intervention-trials-systematic-review-and-meta-analysis
#15
REVIEW
Vicki S Conn, Todd M Ruppar
Excellent medication adherence contributes to decreases in morbidity, mortality, and health care costs. Although researchers have tested many interventions to increase adherence, results are sometimes conflicting and often unclear. This systematic review applied meta-analytic procedures to integrate primary research that tested medication adherence interventions. Comprehensive searching completed in 2015 located 771 published and unpublished intervention studies with adherence behavior outcomes. Random-effects model analysis calculated standardized mean difference effect sizes...
March 15, 2017: Preventive Medicine
https://www.readbyqxmd.com/read/28314193/marijuana-use-and-physical-dating-violence-among-adolescents-and-emerging-adults-a-systematic-review-and-meta-analysis
#16
REVIEW
Renee M Johnson, Michael LaValley, Kristin E Schneider, Rashelle J Musci, Kayley Pettoruto, Emily F Rothman
BACKGROUND: As restrictions on marijuana are loosened, there is concern of a coming increase in marijuana use among adolescents and emerging adults, which could be coupled with commensurate increases in behavioral problems associated with use, such as physical dating violence (PDV). To summarize what is known about the association between marijuana use and PDV victimization and perpetration among 11-21year olds, we conducted a systematic review and meta-analysis of the relevant literature published between 2003 and 2015...
February 28, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28314083/characterization-of-dormant-and-active-human-cancer-cells-by-quantitative-phase-imaging
#17
Peng Guo, Jing Huang, Marsha A Moses
The switch of tumor cells from a dormant, non-angiogenic phenotype to an active, angiogenic phenotype is a critical step in early cancer progression. To date, relatively little is known about the cellular behaviors of angiogenic and non-angiogenic tumor cell phenotypes. In this study, holographic imaging cytometry, a quantitative phase imaging (QPI) technique was used to continuously and non-invasively analyze, quantify, and compare a panel of fundamental cellular behaviors of angiogenic and non-angiogenic human osteosarcoma cells (KHOS) in a simple and economical way...
March 17, 2017: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
https://www.readbyqxmd.com/read/28306130/brain-connectivity-is-altered-by-extreme-physical-exercise-during-non-rem-sleep-and-wakefulness-indications-from-eeg-and-fmri-studies
#18
D Menicucci, C Gentili, A Piarulli, M Laurino, S Pellegrini, F Mastorci, R Bedini, D Montanaro, L Sebastiani, A Gemignani
Brain connectivity is associated to behavioral states (e.g. wake, sleep) and modified by physical activity although, to date, it is not clear which components (e.g. hypothalamus-pituitary-adrenal axis hormones, cytokines) associated to the exercise are involved. In this pilot study, we used extreme exercise (UltraTriathlon) as a model to investigate physical-activity-related changes of brain connectivity. We studied post-race brain synchronization during wakefulness and sleep as well as possible correlations between exercise-related cytokines/hormones and synchronization features...
December 1, 2016: Archives Italiennes de Biologie
https://www.readbyqxmd.com/read/28304262/lung-cancer-screening-participation-developing-a-conceptual-model-to-guide-research
#19
Lisa Carter-Harris, Lorie L Davis, Susan M Rawl
PURPOSE: To describe the development of a conceptual model to guide research focused on lung cancer screening participation from the perspective of the individual in the decision-making process. METHODS: Based on a comprehensive review of empirical and theoretical literature, a conceptual model was developed linking key psychological variables (stigma, medical mistrust, fatalism, worry, and fear) to the health belief model and precaution adoption process model. RESULTS: Proposed model concepts have been examined in prior research of either lung or other cancer screening behavior...
November 1, 2016: Research and Theory for Nursing Practice
https://www.readbyqxmd.com/read/28302101/preventing-diabetes-in-obese-latino-youth-with-prediabetes-a-study-protocol-for-a-randomized-controlled-trial
#20
Erica G Soltero, Yolanda P Konopken, Micah L Olson, Colleen S Keller, Felipe G Castro, Allison N Williams, Donald L Patrick, Stephanie Ayers, Houchun H Hu, Matthew Sandoval, Janiel Pimentel, William C Knowler, Kevin D Frick, Gabriel Q Shaibi
BACKGROUND: Obese Latino adolescents are disproportionately impacted by insulin resistance and type 2 diabetes. Prediabetes is an intermediate stage in the pathogenesis of type 2 diabetes and represents a critical opportunity for intervention. However, to date, no diabetes prevention studies have been conducted in obese Latino youth with prediabetes, a highly vulnerable and underserved group. Therefore, we propose a randomized-controlled trial to test the short-term (6-month) and long-term (12-month) efficacy of a culturally-grounded, lifestyle intervention, as compared to usual care, for improving glucose tolerance and reducing diabetes risk in 120 obese Latino adolescents with prediabetes...
March 16, 2017: BMC Public Health
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