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Protective behavior strategy

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https://www.readbyqxmd.com/read/28635343/primary-psychopathy-and-alcohol-pathology-in-college-students-the-role-of-protective-behavioral-strategies
#1
Matthew P Kramer, Brittany L Stevenson, Robert D Dvorak
OVERVIEW: Though not an official diagnosis, psychopathy has become an important area of research due to the litany of deleterious outcomes associated with this aspect of temperament. Psychopathy is composed of primary and secondary traits. Research consistently links psychopathy to alcohol pathology, though often only via secondary traits which are comprised of intractable aspects of behavior (e.g., poor impulse control). In contrast, primary psychopathy is comprised of behaviors that can be learned and thus may be more malleable (i...
February 13, 2017: American Journal of Drug and Alcohol Abuse
https://www.readbyqxmd.com/read/28634152/ensuring-inclusion-of-adolescent-key-populations-at-higher-risk-of-hiv-exposure-recommendations-for-conducting-biological-behavioral-surveillance-surveys
#2
Lisa Grazina Johnston, Justine Sass, Jeffry Acaba, Wing-Sie Cheng, Shirley Mark Prabhu
Ending acquired immune deficiency syndrome (AIDS) depends on greater efforts to reduce new human immunodeficiency virus (HIV) infections and prevent AIDS-related deaths among key populations at highest HIV risk, including males who have sex with males, sex workers, and people who inject drugs. Although adolescent key populations (AKP) are disproportionately affected by HIV, they have been largely ignored in HIV biological behavioral surveillance survey (BBSS) activities to date. This paper reviews current ethical and sampling challenges and provides suggestions to ensure AKP are included in surveillance activities, with the aim being to enhance evidence-informed, strategic, and targeted funding allocations and programs toward ending AIDS among AKP...
June 20, 2017: JMIR Public Health and Surveillance
https://www.readbyqxmd.com/read/28632795/sun-protection-for-infants-parent-behaviors-and-beliefs-in-miami-florida
#3
Fleta N Bray, Sebastian H Verne, Jessica Cervantes, Alexandra Balaban, Eric R Bray, Brian J Simmons, Keyvan Nouri
Children who are not adequately protected from the sun have an increased risk for developing skin cancers later in life. The primary objective of this study was to determine the sun protection behaviors that black and Hispanic parents in Miami, Florida, employ in infants younger than 6 months. Secondary objectives included determining if this patient population is at risk for infant sunburns and tanning, beliefs among parents regarding sunscreen's efficacy in the prevention of skin cancers, and limitations of sunscreen use...
May 2017: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/28631486/melding-caged-compounds-with-supramolecular-containers-photogeneration-and-miscreant-behavior-of-the-coumarylmethyl-carbocation
#4
Nareshbabu Kamatham, José P Da Silva, Richard S Givens, V Ramamurthy
By merging well-established concepts of supramolecular chemistry, protecting group strategy, and photochemistry, we have solubilized in water hydrophobic organic molecules consisting of a photoactive protecting group and masked carboxylic acids, released the desired acid, and confined a reactive carbocation intermediate within a capsule. Confinement of the photogenerated carbocation brought out the latent radical-like behavior. This observation is consistent with the recent theoretical prediction of the 7-(diethylamino)coumarinyl-4-methyl carbocation having a triplet diradical ground-state electronic contribution...
June 20, 2017: Organic Letters
https://www.readbyqxmd.com/read/28631403/-pseudomonas-protegens-pf-5-favors-self-produced-siderophore-over-free-loading-in-interspecies-competition-for-iron
#5
D Joseph Sexton, Rochelle C Glover, Joyce E Loper, Martin Schuster
Many microorganisms compete for extracellular iron using strain-specific chelators known as siderophores. The ferric-siderophore complex limits local access to iron because import requires a suitable cognate receptor. Interestingly, many species carry receptors that enable "cross-feeding" on heterologous siderophores made by neighboring organisms, although little is known about how this ubiquitous behavior is regulated. Here, we investigated the soil bacterium Pseudomonas protegens Pf-5, a strain remarkable for its ability to use dozens of heterologous siderophores...
June 19, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/28630630/roles-of-mesenchymal-stem-cells-in-spinal-cord-injury
#6
REVIEW
Jing Qu, Huanxiang Zhang
Spinal cord injury (SCI) represents one of the most complicated and heterogeneous pathological processes of central nervous system (CNS) impairments, which is still beyond functional regeneration. Transplantation of mesenchymal stem cells (MSCs) has been shown to promote the repair of the injured spinal cord tissues in animal models, and therefore, there is much interest in the clinical use of these cells. However, many questions which are essential to improve the therapy effects remain unanswered. For instance, the functional roles and related molecular regulatory mechanisms of MSCs in vivo are not yet completely determined...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28625203/understanding-temporal-relationships-between-depression-falls-and-physical-activity-in-a-cohort-of-post-hospitalized-older-adults-a-breakthrough-or-a-conundrum
#7
Den-Ching A Lee, Aislinn F Lalor, Grant Russell, Rene Stolwyk, Ted Brown, Fiona McDermott, Terry P Haines
BACKGROUND: Clinical depression affects approximately 15% of community-dwelling older adults, of which half of these cases present in later life. Falls and depressive symptoms are thought to co-exist, while physical activity may protect an older adult from developing depressive symptoms. This study investigates the temporal relationships between depressive symptoms, falls, and participation in physical activities amongst older adults recently discharged following extended hospitalization...
June 19, 2017: International Psychogeriatrics
https://www.readbyqxmd.com/read/28624657/adiponectin-improves-the-osteointegration-of-titanium-implant-under-diabetic-conditions-by-reversing-mitochondrial-dysfunction-via-the-ampk-pathway-in-vivo-and-in-vitro
#8
Xiao-Fan Hu, Lin Wang, Yi-Zhao Lu, Geng Xiang, Zi-Xiang Wu, Ya-Bo Yan, Yang Zhang, Xiong Zhao, Yuan Zang, Lei Shi, Wei Lei, Ya-Fei Feng
Diabetes-induced reactive oxygen species (ROS) overproduction would result in compromised osteointegration of titanium implant (TI) and high rate of implant failure, yet the underlying mechanisms remain elusive. Adiponectin (APN) is a fat-derived adipocytokine with strong antioxidant, mitochondrial-protective and anti-diabetic efficacies. We hypothesized that mitochondrial dysfunction under diabetes may account for the oxidative stress in osteoblasts and titanium-bone interface (TBI) instability, which could be ameliorated by APN...
June 14, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28622086/naringenin-ameliorates-behavioral-dysfunction-and-neurological-deficits-in-a-d-galactose-induced-aging-mouse-model-through-activation-of-pi3k-akt-nrf2-pathway
#9
Yan Zhang, Bin Liu, Xi Chen, Ning Zhang, Guang Li, Li-Hong Li-Hong Zhang, Li-Yan Li-Yan Tan
In this study, we evaluated the protective effects of naringenin on aging mice induced by D-gal. Open field test and Morris water maze test were performed to evaluate the effect of naringenin on behavioral dysfunction. HE staining, TUNEL staining and Nissl staining were used to estimate the effect of naringenin on neurological deficits. Furthermore, naringenin markedly activated PI3K/Akt signaling, eventually promoted the nuclear translocation of Nrf2 and induced the expressions of HO-1and NQO1. SOD, CAT and TBARS assays were conducted to evaluate oxidative stress in D-gal-induced aging mice...
June 16, 2017: Rejuvenation Research
https://www.readbyqxmd.com/read/28609723/a-rural-urban-comparison-of-privacy-and-confidentiality-concerns-associated-with-providing-sensitive-location-information-in-epidemiologic-research-involving-persons-who-use-drugs
#10
Abby E Rudolph, April M Young, Jennifer R Havens
BACKGROUND: Analyses that link contextual factors with individual-level data can improve our understanding of the "risk environment"; however, the accuracy of information provided by participants about locations where illegal/stigmatized behaviors occur may be influenced by privacy/confidentiality concerns that may vary by setting and/or data collection approach. METHODS: We recruited thirty-five persons who use drugs from a rural Appalachian town and a Mid-Atlantic city to participate in in-depth interviews...
June 8, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28609555/carnivore-carcasses-are-avoided-by-carnivores
#11
Marcos Moleón, Carlos Martínez-Carrasco, Oliver C Muellerklein, Wayne M Getz, Carlos Muñoz-Lozano, José A Sánchez-Zapata
1. Ecologists have traditionally focused on herbivore carcasses as study models in scavenging research. However, some observations of scavengers avoiding feeding on carnivore carrion suggest that different types of carrion may lead to differential pressures. Untested assumptions about carrion produced at different trophic levels could therefore lead ecologists to overlook important evolutionary processes and their ecological consequences. 2. Our general goal was to investigate the use of mammalian carnivore carrion by vertebrate scavengers...
June 13, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28605128/tiny-insects-against-the-weather-flight-and-foraging-patterns-of-frankliniella-schultzei-thripidae-not-altered-by-onset-of-rainfall
#12
Lachlan C Jones, Brodie J Foster, Michelle A Rafter, Gimme H Walter
To survive in nature, organisms may need to take direct action to mitigate specific dangers from their environmental surroundings. Tiny flying insects are thought to be at particular risk from rainfall that would be of negligible concern to larger animals. The study species Frankliniella schultzei is a thrips that inhabits flowers and feeds mostly on petal tissue and pollen. While found to respond in the laboratory to decreases in atmospheric pressure associated with cyclonic conditions (rather than merely heavy rainfall), their responses to conditions preceding rainfall have not been tested in the field...
June 12, 2017: Insect Science
https://www.readbyqxmd.com/read/28605065/injuries-in-youth-track-and-field-are-perceived-to-have-multiple-level-causes-that-call-for-ecological-holistic-developmental-interventions-a-national-sporting-community-perceptions-and-experiences
#13
Jenny Jacobsson, Daniel Bergin, Toomas Timpka, James M Nyce, Örjan Dahlström
Engaging in competitive sports as a youth can have many health benefits, but recent studies also report a high risk for injury. The long-term purpose of this Swedish research program is to develop a framework for safe track and field training for young athletes (aged 12-15 years). The aim of this study was to establish what is perceived to contribute and cause injuries in youth track and field by compiling the best available experiential knowledge about the underlying factors and use this knowledge to identify appropriate areas to handle these in practical ways...
June 12, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28603948/limb-derived-cells-as-a-paradigm-for-engineering-self-assembling-skeletal-tissues
#14
Warnakulasuriya A Fernando, Ioannis Papantoniou, Luis F Mendes, Gabriella Nilsson Hall, Kathleen Bosmans, Wai L Tam, Liliana M Teixeira, Malcolm Moos, Liesbet Geris, Frank P Luyten
Mimicking developmental events has been proposed as a strategy to engineer tissue constructs for regenerative medicine. However, this approach has not yet been investigated for skeletal tissues. Here we demonstrate that ectopic implantation of mouse embryonic day 14.5 long bone anlagen, dissociated into single cells and randomly incorporated in a bioengineered construct, give rise to epiphyseal growth plate like structures, bone, and marrow, which share many morphological and molecular similarities to epiphyseal units that form after transplanting intact long bone anlage, demonstrating substantial robustness and autonomy of complex tissue self-assembly and the overall organogenesis process...
June 11, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28598487/apigenin-exhibits-protective-effects-in-a-mouse-model-of-d-galactose-induced-aging-via-activating-the-nrf2-pathway
#15
Ying Sang, Fan Zhang, Heng Wang, Jianqiao Yao, Ruichuan Chen, Zhengdao Zhou, Kun Yang, Yan Xie, Tianfeng Wan, Hong Ding
The aim of the present research was to study the protective effects and underlying mechanisms of apigenin on d-galactose-induced aging mice. Firstly, apigenin exhibited a potent antioxidant activity in vitro. Secondly, d-galactose was administered by subcutaneous injection once daily for 8 weeks to establish an aging mouse model to investigate the protective effect of apigenin. We found that apigenin supplementation significantly ameliorated aging-related changes such as behavioral impairment, decreased organic index, histopathological injury, increased senescence-associated β-galactosidase (SAβ-gal) activity and advanced glycation end product (AGE) level...
June 9, 2017: Food & Function
https://www.readbyqxmd.com/read/28593303/factors-in-early-adolescence-associated-with-a-mole-prone-phenotype-in-late-adolescence
#16
Haoming Xu, Michael A Marchetti, Stephen W Dusza, Esther Chung, Maira Fonseca, Alon Scope, Alan C Geller, Marilyn Bishop, Ashfaq A Marghoob, Allan C Halpern
Importance: Nevi are important phenotypic risk factors for melanoma in adults. Few studies have examined the constitutional and behavioral factors associated with a mole-prone phenotype in adolescents. Objective: To identify host, behavioral, and dermoscopic factors in early adolescence (age, 14 years) that are associated with a mole-prone phenotype in late adolescence (age, 17 years). Design, Setting, and Participants: A prospective observational cohort study from the Study of Nevi in Children was conducted from January 1, 2009, to December 31, 2014, with a 2- to 3-year follow-up...
June 7, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28590778/accounts-for-unprotected-sex-with-partners-met-online-from-heterosexual-men-and-women-from-large-us-metropolitan-areas
#17
Karolynn Siegel, Étienne Meunier, Helen-Maria Lekas
For about 30 years, soon after the onset of the AIDS epidemic, sexual-health messaging has emphasized personal responsibility for using condoms to protect from acquiring or transmitting HIV or other sexually transmitted infections. Those who did not use condoms during casual sexual encounters may therefore feel compelled to offer to others aware of their behavior what sociologists have called "accounts," an impression-management strategy to avoid unfavorable judgment. We analyzed accounts-excuses and justifications-from qualitative interviews with 150 adults who had unprotected sex in the past 3 months with at least two different partners met online (ages 18-50, mean: 33...
June 7, 2017: AIDS Patient Care and STDs
https://www.readbyqxmd.com/read/28589202/electrochemiluminescence-behavior-of-agncs-and-its-application-in-immunosensors-based-on-pani-ppy-ag-dendrite-modified-electrode
#18
Lina Zhang, Yanhu Wang, Lei Shen, Jinghua Yu, Shenguang Ge, Mei Yan
In this study, hyperbranched polyethyleneimine-protected silver nanoclusters (hPEI-AgNCs) with excellent electrochemiluminescence (ECL) emission in the presence of coreactant K2S2O8 were prepared by chemical reduction of silver ions (silver nitrate) coordinated with dendrigraft polymer, and successfully used for the construction of an ECL immunosensor. Polyaniline (PANI)/polypyrrole (PPy)-silver (Ag) dendrites with good electrical conductivity and biocompatibility were electropolymerized on the surface of indium tin oxide (ITO) electrode as carriers...
June 7, 2017: Analyst
https://www.readbyqxmd.com/read/28586238/toward-accountable-discrimination-aware-data-mining-the-importance-of-keeping-the-human-in-the-loop-and-under-the-looking-glass
#19
Bettina Berendt, Sören Preibusch
"Big Data" and data-mined inferences are affecting more and more of our lives, and concerns about their possible discriminatory effects are growing. Methods for discrimination-aware data mining and fairness-aware data mining aim at keeping decision processes supported by information technology free from unjust grounds. However, these formal approaches alone are not sufficient to solve the problem. In the present article, we describe reasons why discrimination with data can and typically does arise through the combined effects of human and machine-based reasoning, and argue that this requires a deeper understanding of the human side of decision-making with data mining...
June 2017: Big Data
https://www.readbyqxmd.com/read/28585291/reviving-lithium-metal-anodes-for-next-generation-high-energy-batteries
#20
REVIEW
Yanpeng Guo, Huiqiao Li, Tianyou Zhai
Lithium-metal batteries (LMBs), as one of the most promising next-generation high-energy-density storage devices, are able to meet the rigid demands of new industries. However, the direct utilization of metallic lithium can induce harsh safety issues, inferior rate and cycle performance, or anode pulverization inside the cells. These drawbacks severely hinder the commercialization of LMBs. Here, an up-to-date review of the behavior of lithium ions upon deposition/dissolution, and the failure mechanisms of lithium-metal anodes is presented...
June 6, 2017: Advanced Materials
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