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https://www.readbyqxmd.com/read/29161770/twin-models-of-environmental-and-genetic-influences-on-pubertal-development-salivary-testosterone-and-estradiol-in-adolescence
#1
Andrew D Grotzinger, Frank D Mann, Megan W Patterson, Kathrin Herzhoff, Jennifer L Tackett, Elliot M Tucker-Drob, K Paige Harden
OBJECTIVE: Research on sources of variation in adolescent's gonadal hormone levels is limited. We sought to decompose individual differences in adolescent testosterone, estradiol and pubertal status, into genetic and environmental components. DESIGN: A sample of male and female adolescent twins from the greater Austin and Houston areas provided salivary samples, with a subset of participants providing longitudinal data at two waves. PARTICIPANTS: The sample included 902 adolescent twins, 49% female, ages 13-20 years (M = 15...
November 21, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/29161673/reduced-resting-state-thalamostriatal-functional-connectivity-is-associated-with-excessive-daytime-sleepiness-in-persons-with-and-without-depressive-disorders
#2
David T Plante, Rasmus M Birn, Erin C Walsh, Roxanne M Hoks, M Daniela Cornejo, Heather C Abercrombie
BACKGROUND: Excessive daytime sleepiness (EDS) is a common and significant problem encountered in affective illness, however, the biological underpinnings of EDS in persons with psychiatric disorders are not clear. This study evaluated the associations between thalamic connectivity with cortical and subcortical brain regions with EDS in persons with and without depressive disorders (DD). METHODS: Resting-state functional connectivity magnetic resonance imaging scans from 67 unmedicated young to middle-aged women with current DD (n = 30), remitted DD (n = 13), and healthy controls (n = 24) were utilized to examine the associations between thalamic connectivity with cortical/subcortical structures and EDS...
November 14, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29161655/the-association-between-ambient-temperature-and-mortality-in-south-africa-a-time-series-analysis
#3
Noah Scovronick, Francesco Sera, Fiorella Acquaotta, Diego Garzena, Simona Fratianni, Caradee Y Wright, Antonio Gasparrini
BACKGROUND: There is an extensive literature describing temperature-mortality associations in developed regions, but research from developing countries, and Africa in particular, is limited. METHODS: We conducted a time-series analysis using daily temperature data and a national dataset of all 8.8 million recorded deaths in South Africa between 1997 and 2013. Mortality and temperature data were linked at the district municipality level and relationships were estimated with a distributed lag non-linear model with 21 days of lag, and pooled in a multivariate meta-analysis...
November 18, 2017: Environmental Research
https://www.readbyqxmd.com/read/29161636/infant-hpa-axis-as-a-potential-mechanism-linking-maternal-mental-health-and-infant-telomere-length
#4
Benjamin W Nelson, Nicholas B Allen, Heidemarie Laurent
Maternal depression has been suggested to be an independent risk factor for both dysregulated hypothalamic-pituitary-adrenal axis (HPA) functioning and shorter telomere length in offspring. In contrast, research suggests that individual differences in mindfulness may act as a protective factor against one's own telomere degradation. Currently, research has yet to investigate the association between longitudinal changes in maternal mental health (depressive symptoms and mindfulness) and salivary infant telomere length, and whether such changes might be mediated by alterations in infant cortisol response...
November 18, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29161626/the-effect-of-augmented-somatosensory-feedback-on-standing-postural-sway
#5
Angela Smalley, Scott C White, Robert Burkard
Impaired balance resulting from reduced postural control occurs with aging and various medical conditions. Sensory input for balance control is provided by the visual, vestibular and somatosensory systems. Previous research suggests that increased proprioceptive feedback from various lower extremity devices improves balance. Mixed results have been reported with the use of orthoses such as ankle foot orthoses (AFOs). In this study, 20 healthy subjects wore footplates in their shoes or straps around their lower legs in order to imitate the somatosensory feedback produced by wearing AFOs, but without providing ankle restriction...
November 14, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29161535/effect-of-dedicated-lactation-support-services-on-breastfeeding-outcomes-in-extremely-low-birth-weight-neonates
#6
Sharareh Gharib, Molly Fletcher, Richard Tucker, Betty Vohr, Beatrice E Lechner
BACKGROUND: Breastfeeding is associated with major benefits for high-risk infants born prematurely, yet this population faces significant challenges to breastfeeding. Lactation services provide successful interventions, yet the impact of lactation services on breastfeeding outcomes in preterm infants is understudied. Research aim: The provision of full-time lactation support in the neonatal intensive care unit (NICU) will improve quantitative breastfeeding measures in premature infants...
November 1, 2017: Journal of Human Lactation: Official Journal of International Lactation Consultant Association
https://www.readbyqxmd.com/read/29161529/developing-a-serious-videogame-for-preteens-to-motivate-hpv-vaccination-decision-making-land-of-secret-gardens
#7
Joan R Cates, Bernard F Fuemmeler, Sandra J Diehl, Laurie L Stockton, Jeannette Porter, Chioma Ihekweazu, Arshya S Gurbani, Tamera Coyne-Beasley
INTRODUCTION: Vaccination against human papillomavirus (HPV) is routinely recommended for ages 11-12, yet in 2016 only 49.5% of women and 37.5% of men had completed the three-dose series in the United States. Offering information and cues to action through a serious videogame for preteens may foster HPV vaccination awareness, information seeking, and communication. MATERIALS AND METHODS: An iterative process was used to develop an interactive videogame, Land of Secret Gardens...
November 21, 2017: Games for Health
https://www.readbyqxmd.com/read/29161522/development-of-a-measure-to-assess-parent-perceptions-of-barriers-to-child-weight-management
#8
Katherine E Darling, Amy F Sato, Manfred van Dulmen, Christopher Flessner, Geoffrey Putt
BACKGROUND: Families face many barriers related to creating or maintaining a healthy lifestyle, which likely contributes to the prevalence of childhood obesity in the United States; however, no measure currently exists to examine these barriers. This study developed a quantitative measure of parents' perceptions of barriers to family healthy lifestyle. METHODS: Parents of children between the ages of 7-17 were recruited using Amazon Mturk (n = 812). Exploratory and confirmatory factor analyses and preliminary convergent validity analyses were conducted...
November 21, 2017: Childhood Obesity
https://www.readbyqxmd.com/read/29161431/volunteering-in-the-community-potential-benefits-for-cognitive-aging
#9
Hayley Guiney, Liana Machado, Bob G Knight
Objectives: This review aims to advance understanding of the potential benefits of volunteering in the community for older adults' cognitive functioning by taking an in-depth look at the relevant evidence to date. Method: This review describes the main pathways through which volunteering could plausibly benefit cognitive functioning and critically examines research that has specifically investigated links between volunteering and cognition. Fifteen articles that assessed in adults aged ≥ 55 years the relationship between volunteering (predictor) and cognitive functioning (outcome) were identified via literature database searches...
November 17, 2017: Journals of Gerontology. Series B, Psychological Sciences and Social Sciences
https://www.readbyqxmd.com/read/29161422/prevalence-and-genetic-variability-of-human-polyomaviruses-6-and-7-in-healthy-skin-among-asymptomatic-individuals
#10
Yumiko Hashida, Tomonori Higuchi, Shigenobu Matsuzaki, Kimiko Nakajima, Shigetoshi Sano, Masanori Daibata
Background: Despite the pathogenetic potential of human polyomavirus 6 (HPyV6) and human polyomavirus 7 (HPyV7), they have been found in the normal skin of healthy individuals. However, little is known about the prevalence, infection levels, and geographical variations of these polyomaviruses in the skin. Methods: Using skin swabs from 470 participants aged 2-98 years, we estimated the prevalence of copy numbers of HPyV6 and HPyV7 with respect to age and ethnicity...
November 17, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29161419/incidence-of-postoperative-atrial-fibrillation-recurrence-in-patients-discharged-in-sinus-rhythm-after-cardiac-surgery-a-systematic-review-and-meta-analysis
#11
Nicole Lowres, Georgina Mulcahy, Kai Jin, Robyn Gallagher, Lis Neubeck, Ben Freedman
Postoperative atrial fibrillation (POAF) is associated with increased stroke risk and mortality post-discharge. POAF is often considered transient; however, recurrence is likely under-recognized as symptoms are an unreliable guide. Surveillance post-discharge may identify asymptomatic POAF recurrences in patients discharged in sinus rhythm. Therefore, we performed a systematic review and meta-analysis of studies investigating POAF recurrence post-discharge, in patients with new-onset POAF following cardiac surgery who reverted to sinus rhythm prior to discharge...
November 17, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29161403/school-practices-important-for-students-sexual-health-analysis-of-the-school-health-research-network-survey-in-wales
#12
Honor Young, Sara Jayne Long, Britt Hallingberg, Adam Fletcher, Gillian Hewitt, Simon Murphy, Graham F Moore
Background: This study investigates how the sexual health outcomes of a representative sample of students aged 15-16 in Wales vary according to the person delivering Sex and Relationships Education (SRE) in schools, students' access to on-site sexual health services and access to free condoms. Methods: Cross-sectional, self-report survey data were collected from students who participated in the 2015/16 School Health Research Network questionnaire in Wales. Data were analyzed from 59 schools, totalling 3781 students aged 15-16 (M = 15...
November 17, 2017: European Journal of Public Health
https://www.readbyqxmd.com/read/29161195/successful-aging-the-role-of-cognitive-gerontology
#13
Alan Hartley, Lucie Angel, Alan Castel, André Didierjean, Lisa Geraci, Joellen Hartley, Eliot Hazeltine, Patrick Lemaire, François Maquestiaux, Eric Ruthruff, Laurence Taconnat, Catherine Thevenot, Dayna Touron
This commentary explores the relationships between the construct of successful aging and the experimental psychology of human aging-cognitive gerontology. What can or should cognitive gerontology contribute to understanding, defining, and assessing successful aging? Standards for successful aging reflect value judgments that are culturally and historically situated. Fundamentally, they address social policy; they are prescriptive. If individuals or groups are deemed to be aging successfully, then their characteristics or situations can be emulated...
November 21, 2017: Experimental Aging Research
https://www.readbyqxmd.com/read/29161190/using-video-stimuli-to-examine-judgments-of-non-offending-and-offending-pedophiles-a-brief-communication
#14
Katie A Boardman, Ross M Bartels
In this experimental study, 89 participants were allocated to an offending pedophile; non-offending pedophile; or control video condition. They then watched two short help-seeking video-clips of an older male and a younger male (counterbalanced). Judgments about each male were assessed, as were general attitudes towards pedophiles and sexual offenders. Offending pedophiles were judged as more deserving of punishment than the non-offending pedophiles and controls. Age of the male was found to have an effect on judgments of dangerousness...
November 21, 2017: Journal of Sex & Marital Therapy
https://www.readbyqxmd.com/read/29161175/performance-discrepancies-on-the-boston-naming-test-in-african-american-and-non-hispanic-white-american-young-adults
#15
Sabrina Na, Tricia Z King
The Boston Naming Test (BNT) is one of the most commonly used naming measures in neuropsychology. Although research in the older adult population has shown that African-American (AA) adults perform more poorly on the BNT than non-Hispanic White American (WA) adults, these findings have yet to be replicated in younger adults. The BNT and measures of word reading (WJ-Letter Word ID) and vocabulary (Wechsler Abbreviated Scale of Intelligence Vocabulary) were administered to 50 WA and 33 AA young adults. Performance was age-normed based on published norms and transformed into z-scores...
November 21, 2017: Applied Neuropsychology. Adult
https://www.readbyqxmd.com/read/29161167/depression-and-marijuana-use-among-a-sample-of-urban-females-is-stage-of-development-important
#16
Leah Floyd Campbell
BACKGROUND: Increasing rates of marijuana use and high rates of depression among females are major public health concerns and ambiguous study results suggest a complex association between the two. Inconsistent findings may be due to differences in sample characteristics (e.g., females vs. males) and result from differences in the relationship over time (i.e., across developmental stages). OBJECTIVES: Presently, the extent to which the relationship between depression and marijuana use differed for females in emerging adulthood, compared to young adult females, was examined...
November 21, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/29161114/suicide-and-high-altitude-an-integrative-review
#17
Elaine Reno, Talia L Brown, Marian E Betz, Michael H Allen, Lilian Hoffecker, Jeremy Reitinger, Robert Roach, Benjamin Honigman
Reno, Elaine, Talia L. Brown, Marian E. Betz, Michael H. Allen, Lilian Hoffecker, Jeremy Reitinger, Robert Roach, and Benjamin Honigman. Suicide and high altitude: an integrative review. High Alt Med Biol 00:000-000, 2017. INTRODUCTION: Suicide rates are greater at high altitudes, and multiple mechanisms have been suggested for this relationship, including hypoxia, differences in population density, characteristics of suicide victims, and firearms ownership and access. To better understand these potential mechanisms, studies evaluating the associations between high altitude and suicide were examined...
November 21, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/29161094/the-effect-of-resistance-training-in-a-hypoxic-chamber-on-physical-performance-in-elite-rugby-athletes
#18
Brad Mayo, Cory Miles, Stacy Sims, Matthew Driller
Mayo, Brad, Cory Miles, Stacy Sims, and Matthew Driller. The effect of resistance training in a hypoxic chamber on physical performance in elite rugby athletes. High Alt Med Biol 00:000-000, 2017.-Limited research suggests that muscle adaptations may be enhanced through resistance training in a hypoxic environment. Seventeen professional rugby union athletes (age [mean ± SD], 24 ± 3 years; body mass, 98.7 ± 12.8 kg; and height, 188.9 ± 7.9 cm), performed 12 resistance training sessions over a 3-week period...
November 21, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/29161058/trends-in-daily-cannabis-use-among-cigarette-smokers-united-states-2002-2014
#19
Renee D Goodwin, Lauren R Pacek, Jan Copeland, Scott J Moeller, Lisa Dierker, Andrea Weinberger, Misato Gbedemah, Michael J Zvolensky, Melanie M Wall, Deborah S Hasin
OBJECTIVES: To estimate changes in the prevalence of daily cannabis use among current, former, and never cigarette smokers from 2002 to 2014 in the United States. METHODS: The National Survey on Drug Use and Health is a nationally representative cross-sectional study conducted annually among persons aged 12 years and older in the United States. RESULTS: Daily cannabis use occurs nearly exclusively among nondaily and daily cigarette smokers compared with former and never smokers (8...
November 21, 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/29160949/failure-to-initiate-hiv-treatment-in-patients-with-high-cd4-counts-evidence-from-demographic-surveillance-in-rural-kwazulu-natal
#20
Jacob Bor, Calvin Chiu, Shahira Ahmed, Ingrid Katz, Matt Fox, Sydney Rosen, Manisha Yapa, Frank Tanser, Deenan Pillay, Till Bärnighausen
OBJECTIVES: To assess the relationship between CD4 count at presentation and ART uptake and assess predictors of timely treatment initiation in rural KwaZulu-Natal, South Africa. METHODS: We used Cox Proportional Hazards models to assess the association between first CD4 count and time from first CD4 to ART initiation amongst all treatment-naïve adults presenting to the Hlabisa HIV Treatment and Care Program between August 2011 and December 2012, with CD4<350 cells...
November 21, 2017: Tropical Medicine & International Health: TM & IH
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