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Tarisai Chiyaka, Phillis Mushati, Bernadette Hensen, Sungai Chabata, James R Hargreaves, Sian Floyd, Isolde J Birdthistle, Frances M Cowan, Joanna R Busza
Young women (aged 15-24) who exchange sex for money or other support are among the highest risk groups for HIV acquisition, particularly in high prevalence settings. To prepare for introduction and evaluation of the DREAMS programme in Zimbabwe, which provides biomedical and social interventions to reduce adolescent girls' and young women's HIV vulnerability, we conducted a rapid needs assessment in 6 towns using a "social mapping" approach. In each site, we talked to adult sex workers and other key informants to identify locations where young women sell sex, followed by direct observation, group discussions and interviews...
2018: PloS One
Karen L Wozniak
The fungal pathogens Cryptococcus neoformans and Cryptococcus gattii can cause life-threatening infections in immune compromised and immune competent hosts. These pathogens enter the host via inhalation, and respiratory tract innate immune cells such as dendritic cells (DCs) are one of the first host cells they encounter. The interactions between Cryptococcus and innate immune cells play a critical role in the progression of disease in the host. This review will focus specifically on the interactions between Cryptococcus and dendritic cells (DCs), including recognition/processing by DCs, effects of immune mediators on DC recruitment and activity, and the potential for DC vaccination against cryptococcosis...
March 15, 2018: Journal of Fungi (Basel, Switzerland)
Hernan Garcia-Ruiz, Arturo Diaz, Paul Ahlquist
Positive-strand RNA viruses replicate their genomes in membrane-bound replication compartments. Brome mosaic virus (BMV) replicates in vesicular invaginations of the endoplasmic reticulum membrane. BMV has served as a productive model system to study processes like virus-host interactions, RNA replication and recombination. Here we present multiple lines of evidence showing that the structure of the viral RNA replication compartments plays a fundamental role and that recruitment of parental RNAs to a common replication compartment is a limiting step in intermolecular RNA recombination...
March 15, 2018: Viruses
Alana Grech, Emmanuel Hanert, Len McKenzie, Michael Rasheed, Christopher Thomas, Samantha Tol, Mingzhu Wang, Michelle Waycott, Jolan Wolter, Rob Coles
The rate of exchange, or connectivity, among populations effects their ability to recover after disturbance events. However, there is limited information on the extent to which populations are connected or how multiple disturbances affect connectivity, especially in coastal and marine ecosystems. We used network analysis and the outputs of a biophysical model to measure potential functional connectivity and predict the impact of multiple disturbances on seagrasses in the central Great Barrier Reef World Heritage Area (GBRWHA), Australia...
March 15, 2018: Global Change Biology
Conran Joseph, Björn Stömbäck, Maria Hagströmer, David Conradsson
OBJECTIVE: To investigate the feasibility of using accelerometers to monitor physical activity in persons with stroke admitted to inpatient rehabilitation. DESIGN: Longitudinal observational study. PARTICIPANTS: Persons with stroke admitted to a specialized rehabilitation centre for sub-acute rehabilitation were recruited between August and December 2016. METHODS: Volume and intensity of physical activity were assessed with accelerometers throughout the rehabilitation period...
March 15, 2018: Journal of Rehabilitation Medicine
Kathleen S Rockland
Recent commentaries on the role of the thalamus consider a wide sphere of influence beyond sensory-motor transformation, to include task-relevant cognitive processes. In this short review, I reconsider known anatomic features of corticothalamic connectivity, primarily for macaque monkey, and discuss these as part of an intricate network architecture consistent with multiple connectional re-combinations and a diversity of functional tasks. Drawing mainly on results from single axon analysis for the two broad classes of corticothalamic (CT) connections, I review the strikingly complementary spatial parameters of their extrinsic CT arbors in relation to intrinsic cortical collaterals...
March 14, 2018: European Journal of Neuroscience
Folakemi T Odedina, R R Reams, E Kaninjing, J Nguyen, B Mochona, D E Lyon, N Askins, L S Behar-Horenstein
With the growing burden of cancer in minority populations and limited progress in eliminating cancer disparities, it has become important to develop a diverse oncology workforce in basic, clinical, and behavioral research who will address cancer disparities and increase the participation of minority populations in clinical trials. To address the lack of well-trained underrepresented minority cancer scientists in Florida, the University of Florida collaborated with Florida A&M University in 2012 to establish the Florida Prostate Cancer Research Training Opportunities for Outstanding Leaders (ReTOOL) Program...
March 15, 2018: Journal of Cancer Education: the Official Journal of the American Association for Cancer Education
Yu-Jie Dai, Xin Zhang, Yang Yang, Hai-Yan Nan, Ying Yu, Qian Sun, Lin-Feng Yan, Bo Hu, Jin Zhang, Zi-Yu Qiu, Yi Gao, Guang-Bin Cui, Bi-Liang Chen, Wen Wang
BACKGROUND: The incidence of pain disorders in women is higher than in men, making gender differences in pain a research focus. The human insular cortex is an important brain hub structure for pain processing and is divided into several subdivisions, serving different functions in pain perception. Here we aimed to examine the gender differences of the functional connectivities (FCs) between the twelve insular subdivisions and selected pain-related brain structures in healthy adults. METHODS: Twenty-six healthy males and 11 age-matched healthy females were recruited in this cross-sectional study...
March 14, 2018: Journal of Headache and Pain
Nicole Stone, Cynthia Graham, Sydney Anstee, Katherine Brown, Katie Newby, Roger Ingham
Background: Condoms remain the main protection against sexually transmitted infections (STIs) when used correctly and consistently. Yet, there are many reported barriers to their use such as negative attitudes, reduced sexual pleasure, fit-and-feel problems and erection difficulties. The UK home-based intervention strategy (HIS-UK) is a behaviour change condom promotion intervention for use among young men (aged 16-25 years) designed to increase condom use by enhancing enjoyment of condom-protected intercourse...
2018: Pilot and Feasibility Studies
Alexis Bonfim-Melo, Éden R Ferreira, Renato A Mortara
This study evaluated the participation of host cell Rho-family GTPases and their effector proteins in the actin-dependent invasion by Trypanosoma cruzi extracellular amastigotes (EAs). We observed that all proteins were recruited and colocalized with actin at EA invasion sites in live or fixed cells. EA internalization was inhibited in cells depleted in Rac1, N-WASP, and WAVE2. Time-lapse experiments with Rac1, N-WASP and WAVE2 depleted cells revealed that EA internalization kinetics is delayed even though no differences were observed in the proportion of EA-induced actin recruitment in these groups...
2018: Frontiers in Microbiology
Lucas Wan Der Maas
The aim of this study was to analyze the changes in the 2000s in the social base of the medical and nursing professions in Brazil, as a result of the expansion of higher education in the country beginning in the late 1990s. The article begins with a descriptive analysis of the social base of recruitment, drawing on data from the socioeconomic questionnaire of the National Student Performance Exam in 2004 and 2010, for incoming and graduating students in medicine and nursing. Next, it analyzes the social base of certified physicians and nurses, using data from the 2000 and 2010 Population Censuses...
March 8, 2018: Cadernos de Saúde Pública
Marta Vilalta, Jourdan Brune, Marjan Rafat, Luis Soto, Edward E Graves
Recently it has been observed in preclinical models that that radiation enhances the recruitment of circulating tumor cells to primary tumors, and results in tumor regrowth after treatment. This process may have implications for clinical radiotherapy, which improves control of a number of tumor types but which, despite continued dose escalation and aggressive fractionation, is unable to fully prevent local recurrences. By irradiating a single tumor within an animal bearing multiple lesions, we observed an increase in tumor cell migration to irradiated and unirradiated sites, suggesting a systemic component to this process...
March 13, 2018: Clinical & Experimental Metastasis
Khetsiwe P Masuku, Munyane Mophosho, Muziwakhe Tshabalala
Background: Aphasia is an acquired impairment in language and in the cognitive processes that underlie language. Aphasia affects the quality of life of the person with aphasia (PWA) and his or her families in various ways in diverse contexts and cultures. It is therefore important that speech language therapists understand how different contextual and cultural factors may mediate experiences. Purpose: The aim of the study was to describe the caregiving experience of female caregivers of PWA residing in Tembisa, a township situated in the east of Johannesburg...
2018: African Journal of Disability
Toria Herd, Mengjiao Li, Dominique Maciejewski, Jacob Lee, Kirby Deater-Deckard, Brooks King-Casas, Jungmeen Kim-Spoon
Past research has demonstrated negative associations between exposure to stressors and quality of interpersonal relationships among children and adolescents. Nevertheless, underlying mechanisms of this association remain unclear. Chronic stress has been shown to disrupt prefrontal functioning in the brain, including inhibitory control abilities, and evidence is accumulating that inhibitory control may play an important role in secure interpersonal relationship quality, including peer problems and social competence...
2018: Frontiers in Psychology
Laura M König, Gudrun Sproesser, Harald T Schupp, Britta Renner
BACKGROUND: Although mobile technologies such as smartphone apps are promising means for motivating people to adopt a healthier lifestyle (mHealth apps), previous studies have shown low adoption and continued use rates. Developing the means to address this issue requires further understanding of mHealth app nonusers and adoption processes. This study utilized a stage model approach based on the Precaution Adoption Process Model (PAPM), which proposes that people pass through qualitatively different motivational stages when adopting a behavior...
March 13, 2018: JMIR MHealth and UHealth
Katie L Burkhouse, Autumn Kujawa, Bobby Hosseini, Heide Klumpp, Kate D Fitzgerald, Scott A Langenecker, Christopher S Monk, K Luan Phan
BACKGROUND: Research suggests that individuals with anxiety have difficulty ignoring threat distractors when completing tasks with competing stimuli. Studies examining the neural correlates of these emotional processing difficulties in youth anxiety highlight reduced recruitment of regions associated with goal-directed attention, such as the anterior cingulate cortex (ACC). In the current study, we examined neural activation during an emotional conflict task in youth with anxiety disorders before and after treatment...
March 10, 2018: Progress in Neuro-psychopharmacology & Biological Psychiatry
Peter Göttle, Anastasia Manousi, David Kremer, Laura Reiche, Hans-Peter Hartung, Patrick Küry
BACKGROUND: Multiple sclerosis (MS) is a neuroinflammatory autoimmune disease of the central nervous system (CNS) which in most cases initially presents with episodes of transient functional deficits (relapsing-remitting MS; RRMS) and eventually develops into a secondary progressive form (SPMS). Aside from neuroimmunological activities, MS is also characterized by neurodegenerative and regenerative processes. The latter involve the restoration of myelin sheaths-electrically insulating structures which are the primary targets of autoimmune attacks...
March 13, 2018: Journal of Neuroinflammation
Debbie L Croyden, Helen A Vidgen, Emma Esdaile, Emely Hernandez, Anthea Magarey, Carly J Moores, Lynne Daniels
BACKGROUND: PEACH™QLD translated the PEACH™ Program, designed to manage overweight/obesity in primary school-aged children, from efficacious RCT and small scale community trial to a larger state-wide program. This paper describes the lessons learnt when upscaling to universal health coverage. METHODS: The 6-month, family-focussed program was delivered in Queensland, Australia from 2013 to 2016. Its implementation was planned by researchers who developed the program and conducted the RCT, and experienced project managers and practitioners across the health continuum...
March 13, 2018: BMC Public Health
Santa Mammana, Paolo Fagone, Eugenio Cavalli, Maria Sofia Basile, Maria Cristina Petralia, Ferdinando Nicoletti, Placido Bramanti, Emanuela Mazzon
In physiological conditions, different types of macrophages can be found within the central nervous system (CNS), i.e., microglia, meningeal macrophages, and perivascular (blood-brain barrier) and choroid plexus (blood-cerebrospinal fluid barrier) macrophages. Microglia and tissue-resident macrophages, as well as blood-borne monocytes, have different origins, as the former derive from yolk sac erythromyeloid precursors and the latter from the fetal liver or bone marrow. Accordingly, specific phenotypic patterns characterize each population...
March 13, 2018: International Journal of Molecular Sciences
Maria Agthe, Yvonne Garbers, Joachim Grötzinger, Christoph Garbers
BACKGROUND/AIMS: The cytokine interleukin-11 (IL-11) has important pro- and anti-inflammatory functions. It activates its target cells through binding to the IL-11 receptor (IL-11R), and the IL-11/IL-11R complex recruits a homodimer of glycoprotein 130 (gp130). N-linked glycosylation, a post-translational modification where complex oligosaccharides are attached to the side chain of asparagine residues, is often important for stability, folding and biological function of cytokine receptors...
March 7, 2018: Cellular Physiology and Biochemistry
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