bluuebunny/crossref_metadata_2025_split huggingface dataset:
“We don't get much of a voice about anything”: perspectives on photovoice among people who inject drugs
Authors: Drainoni Mari-Lynn , Childs Ellen , Biello Katie B. , Biancarelli Dea L. , Edeza Alberto , Salhaney Peter , Mimiaga Matthew J. , Bazzi Angela R. 
Published: November 2019

Abstract
Background
In the context of the current US opioid crisis, people who inject drugs (PWID) are increasingly researched, but their ability to tell their own stories may be limited. Photovoice is a participatory action research method that allows participants to use photography to directly depict their experiences.

Methods
We conducted interviews with PWID (n = 33) as part of a qualitative study on the health needs of PWID in the USA to explore interest and acceptability of photovoice as a potential research method and way to share their voices.

Results
Participants identified facilitators and barriers to participating in a future photovoice project. Facilitators included a chance to depict one’s unique experience, help others in need by sharing one’s own story, and photography being a more “comfortable” way to tell their stories than traditional research methods. Barriers included safety concerns, embarrassment, and ability to retain cameras. Participants also identified areas of sensitivity related to documenting drug use.

Conclusions
While we found broad acceptability of photovoice, barriers would need to be addressed and additional training and support for research staff and potential participants related to the ethics of public photography and engaging PWID in photovoice research would be required.
Mapping evidence of free maternal healthcare financing and quality of care in sub-Saharan Africa: a systematic scoping review protocol
Authors: Ansu-Mensah Monica , Mohammed Tahiru , Udoh Roseline H. , Bawontuo Vitalis , Kuupiel Desmond 
Published: November 2019

Abstract
Background
Identifying and addressing research gaps on the implementation of free maternal healthcare financing policies and the quality of service delivery in sub-Saharan Africa (SSA) is essential in ensuring continuous patronage of the services by clients and sustainability of the policies to meet the intended goals. The proposed scoping review is aimed at mapping evidence on free maternal healthcare financing and quality of care in SSA.

Methods
Arksey and O’Malley’s framework, Levac and colleagues’ recommendations, and the Joanna Briggs Institute guidelines will be used to guide the proposed study. A complete keyword search for relevant studies presenting evidence on free maternal healthcare financing and perceived quality of care among women in SSA will be performed in EBSCOhost, PubMed, Web of Science, Google Scholar and SCOPUS. Relevant grey literature from university repositories and international organisations such as WHO and government websites, and the reference lists of included studies will be additionally searched. The Preferred Reporting Items for Systematic Reviews and Meta-analysis: Extension for Scoping Review (PRISMA-ScR) will be used to present the results of the proposed scoping review. NVivo version 11 software package will be employed to extract the relevant outcomes from the included studies using content thematic analysis. Quality appraisal of the included studies for this proposed study will be performed utilising the latest mixed methods appraisal tool.

Discussion
It is anticipated that the results of the proposed study will inform future research and reveal evidence-based information to address potential quality of care issues that may arise because of free maternal healthcare policy implementation in some SSA countries. The proposed study will also be useful to other SSA countries planning to implement free maternal health policy, as they will be able to draw useful lessons to guide them through the process.
TAM receptors, Phosphatidylserine, inflammation, and Cancer
Authors: Burstyn-Cohen Tal , Maimon Avi 
Published: November 2019

AbstractThe numerous and diverse biological roles of Phosphatidylserine (PtdSer) are featured in this special issue. This review will focus on PtdSer as a cofactor required for stimulating TYRO3, AXL and MERTK – comprising the TAM family of receptor tyrosine kinases by their ligands Protein S (PROS1) and growth-arrest-specific 6 (GAS6) in inflammation and cancer. As PtdSer binding to TAMs is a requirement for their activation, the biological repertoire of PtdSer is now recognized to be broadened to include functions performed by TAMs. These include key homeostatic roles necessary for preserving a healthy steady state in different tissues, controlling inflammation and further additional roles in diseased states and cancer. The impact of PtdSer on inflammation and cancer through TAM signaling is a highly dynamic field of research. This review will focus on PtdSer as a necessary component of the TAM receptor-ligand complex, and for maximal TAM signaling. In particular, interactions between tumor cells and their immediate environment - the tumor microenvironment (TME) are highlighted, as both cancer cells and TME express TAMs and secrete their ligands, providing a nexus for a multifold of cross-signaling pathways which affects both immune cells and inflammation as well as tumor cell biology and growth. Here, we will highlight the current and emerging knowledge on the implications of PtdSer on TAM signaling, inflammation and cancer.Graphical Abstract
The role of hedgehog signaling in gastric cancer: molecular mechanisms, clinical potential, and perspective
Authors: Xu Yan , Song Shumei , Wang Zhenning , Ajani Jaffer A. 
Published: November 2019

AbstractPatients with advanced gastric cancer usually have a poor prognosis and limited therapeutic options. Overcoming this challenge requires novel targets and effective drugs. The Hedgehog (Hh) signaling pathway plays a crucial role in the development of the gastrointestinal tract and maintenance of the physiologic function of the stomach. Aberrantly activated Hh signaling is implicated in carcinogenesis as well as maintenance of cancer stem cells. Somatic mutations in the components of Hh signaling (PTCH1 and SMO) have been shown to be a major cause of basal cell carcinoma, and dozens of Hh inhibitors have been developed. To date, two inhibitors (GDC-0449 and LDE225) have been approved by the U.S. Food and Drug Administration to treat basal cell carcinoma and medulloblastoma. Here, we review the role of the Hh signaling in the carcinogenesis and progression of gastric cancer and summarize recent findings on Hh inhibitors in gastric cancer. Hedgehog signaling is often aberrantly activated and plays an important role during inflammation and carcinogenesis of gastric epithelial cells. Further study of the precise mechanisms of Hh signaling in this disease is needed for the validation of therapeutic targets and evaluation of the clinical utility of Hh inhibitors for gastric cancer.
The community-based prevention of diabetes (ComPoD) study: a randomised, waiting list controlled trial of a voluntary sector-led diabetes prevention programme
Authors: Smith Jane R. , Greaves Colin J. , Thompson Janice L. , Taylor Rod S. , Jones Matthew , Armstrong Rosy , Moorlock Sarah , Griffin Ann , Solomon-Moore Emma , Biddle Michele S. Y. , Price Lisa , Abraham Charles 
Published: November 2019

Abstract
Objective
This two-site randomised trial compared the effectiveness of a voluntary sector-led, community-based diabetes prevention programme to a waiting-list control group at 6 months, and included an observational follow-up of the intervention arm to 12 months.

Methods
Adults aged 18–75 years at increased risk of developing type 2 diabetes due to elevated blood glucose and being overweight were recruited from primary care practices at two UK sites, with data collected in participants’ homes or community venues. Participants were randomised using an online central allocation service. The intervention, comprising the prototype “Living Well, Taking Control” (LWTC) programme, involved four weekly two-hour group sessions held in local community venues to promote changes in diet and physical activity, plus planned follow-up contacts at two, three, six, nine and 12 months alongside 5 hours of additional activities/classes. Waiting list controls received usual care for 6 months before accessing the programme. The primary outcome was weight loss at 6 months. Secondary outcomes included glycated haemoglobin (HbA1c), blood pressure, physical activity, diet, health status and well-being. Only researchers conducting analyses were blinded.

Results
The target sample of 314 participants (157 each arm) was largely representative of local populations, including 44% men, 26% from ethnic minorities and 33% living in deprived areas. Primary outcome data were available for 285 (91%) participants (141 intervention, 144 control). Between baseline and 6 months, intervention participants on average lost more weight than controls (− 1.7 kg, 95% CI − 2.59 to − 0.85). Higher attendance was associated with greater weight loss (− 3.0 kg, 95% CI − 4.5 to − 1.5). The prototype LWTC programme more than doubled the proportion of participants losing > 5% of their body weight (21% intervention vs. 8% control, OR 2.83, 95% CI 1.36 to 5.90) and improved self-reported dietary behaviour and health status. There were no impacts on HbA1c, blood pressure, physical activity and well-being at 6 months and, amongst intervention participants, few further changes from six to 12-months (e.g. average weight re-gain 0.36 kg, 95% CI − 0.20 to 0.91). There were no serious adverse events but four exercise-related injuries were reported in the intervention arm.

Conclusions
This voluntary sector-led diabetes prevention programme reached a broad spectrum of the population and had modest effects on weight-related outcomes, but limited impacts on other diabetes risk factors.

Trial registration
Trial registration number: ISRCTN70221670, 5 September 2014
Funder (National Institute for Health Research School for Public Health Research) project reference number: SPHR-EXE-PES-COM.
Altering the availability of healthier vs. less healthy items in UK hospital vending machines: a multiple treatment reversal design
Authors: Pechey Rachel , Jenkins Holly , Cartwright Emma , Marteau Theresa M. 
Published: November 2019

Abstract
Background
Altering the availability of healthier or less-healthy products may increase healthier purchases, but evidence is currently limited. The current study aimed to investigate the impact of altering the absolute-and-relative availability of healthier and less-healthy products – i.e. simultaneously altering the number of options available and the proportion of healthier options – in hospital vending machines.

Methods
An adapted multiple treatment reversal design was used, altering products available in ten vending machines serving snack foods and/or cold drinks in one English hospital. Machines were randomised to one of two sequences for the seven 4-week study periods: ABCADEA or ADEABCA. In Condition A (study periods 1, 4 and 7) the proportions of healthier products were standardised across all machines, so that 25% of all snack slots and 75% of drink slots were healthier. In Condition B, 20% of vending machine slots were emptied by removing less-healthy products. In Condition C, the empty slots created in Condition B were filled with healthier products. Conditions D and E were operationalised in the same way as B and C, except healthier products were removed in D, and then less-healthy products added in E. Sales data were obtained from machine restocking records. Separate linear mixed models were conducted to examine the impact of altering availability on energy purchased (kcal) from (i) snacks or (ii) drinks each week, with random effects for vending machine.

Results
The energy purchased from drinks was reduced when the number of slots containing less-healthy drinks was decreased, compared to standardised levels (− 52.6%; 95%CI: − 69.3,-26.9). Findings were inconclusive for energy purchased from snacks when less-healthy snack slots were reduced (− 17.2%; 95%CI: − 47.4,30.5). Results for altering the number of slots for healthier drinks or snacks were similarly inconclusive, with no statistically significant impact on energy purchased.

Conclusions
Reducing the availability of less-healthy drinks could reduce the energy purchased from drinks in vending machines. Further studies are needed to establish whether any effects might be smaller for snacks, or found with higher baseline proportions of healthier options.
Downregulation of exosomal miR-192-5p and miR-204-5p in subjects with nonclassic apparent mineralocorticoid excess
Authors: Tapia-Castillo Alejandra , Guanzon Dominic , Palma Carlos , Lai Andrew , Barros Eric , Allende Fidel , Vecchiola Andrea , Fardella Carlos E. , Salomón Carlos , Carvajal Cristian A. 
Published: November 2019

Abstract
Background
The “nonclassic” apparent mineralocorticoid excess (NC-AME) has been identified in approximately 7% of general population. This phenotype is characterized by low plasma renin activity (PRA), high serum cortisol (F) to cortisone (E) ratio, low cortisone, high Fractional Excretion of potassium (FEK) and normal-elevated systolic blood pressure (SBP). An early detection and/or identification of novel biomarkers of this phenotype could avoid the progression or future complications leading to arterial hypertension. Isolation of extracellular vesicles, such as exosomes, in specific biofluids support the identification of tissue-specific RNA and miRNA, which may be useful as novel biomarkers. Our aim was to identify miRNAs within urinary exosomes associated to the NC-AME phenotype.

Methods
We perform a cross-sectional study in a primary care cohort of 127 Chilean subjects. We measured BP, serum cortisol, cortisone, aldosterone, PRA. According to the previous reported, a subgroup of subjects was classified as NC-AME (n = 10). Urinary exosomes were isolated and miRNA cargo was sequenced by Illumina-NextSeq-500.

Results
We found that NC-AME subjects had lower cortisone (p < 0.0001), higher F/E ratio (p < 0.0001), lower serum potassium (p = 0.009) and higher FEK 24 h (p = 0.03) than controls. We found miR-204-5p (fold-change = 0.115; p 0.001) and miR-192-5p (fold-change = 0.246; p 0.03) are both significantly downregulated in NC-AME. miR-192-5p expression was correlated with PRA (r = 0.45; p 0.028) and miR-204-5p expression with SBP (r = − 0.48, p 0.027) and F/E ratio (r = − 0.48; p 0.026).

Conclusions
These findings could support a potential role of these miRNAs as regulators and novel biomarkers of the NC-AME phenotype.
The effects of n-6 polyunsaturated fatty acid deprivation on the inflammatory gene response to lipopolysaccharide in the mouse hippocampus
Authors: Alashmali Shoug M. , Lin Lin , Trépanier Marc-Olivier , Cisbani Giulia , Bazinet Richard P. 
Published: November 2019

Abstract
Background
Neuroinflammation is thought to contribute to psychiatric and neurological disorders such as major depression and Alzheimer’s disease (AD). N-6 polyunsaturated fatty acids (PUFA) and molecules derived from them, including linoleic acid- and arachidonic acid-derived lipid mediators, are known to have pro-inflammatory properties in the periphery; however, this has yet to be tested in the brain. Lowering the consumption of n-6 PUFA is associated with a decreased risk of depression and AD in human observational studies. The purpose of this study was to investigate the inflammation-modulating effects of lowering dietary n-6 PUFA in the mouse hippocampus.

Methods
C57BL/6 male mice were fed either an n-6 PUFA deprived (2% of total fatty acids) or an n-6 PUFA adequate (23% of total fatty acids) diet from weaning to 12 weeks of age. Animals then underwent intracerebroventricular surgery, in which lipopolysaccharide (LPS) was injected into the left lateral ventricle of the brain. Hippocampi were collected at baseline and following LPS administration (1, 3, 7, and 14 days). A microarray (n = 3 per group) was used to identify candidate genes and results were validated by real-time PCR in a separate cohort of animals (n = 5–8 per group).

Results
Mice administered with LPS had significantly increased Gene Ontology categories associated with inflammation and immune responses. These effects were independent of changes in gene expression in any diet group. Results were validated for the effect of LPS treatment on astrocyte, cytokine, and chemokine markers, as well as some results of the diets on Ifrd2 and Mfsd2a expression.

Conclusions
LPS administration increases pro-inflammatory and lipid-metabolizing gene expression in the mouse hippocampus. An n-6 PUFA deprived diet modulated inflammatory gene expression by both increasing and decreasing inflammatory gene expression, without impairing the resolution of neuroinflammation following LPS administration.
Simpson’s Paradox is suppression, but Lord’s Paradox is neither: clarification of and correction to Tu, Gunnell, and Gilthorpe (2008)
Authors: Nickerson Carol A. , Brown Nicholas J. L. 
Published: November 2019

AbstractTu et al. (Emerg Themes Epidemiol 5:2, 2008. https://doi.org/10.1186/1742-7622-5-2) asserted that suppression, Simpson’s Paradox, and Lord’s Paradox are all the same phenomenon—the reversal paradox. In the reversal paradox, the association between an outcome variable and an explanatory (predictor) variable is reversed when another explanatory variable is added to the analysis. More specifically, Tu et al. (2008) purported to demonstrate that these three paradoxes are different manifestations of the same phenomenon, differently named depending on the scaling of the outcome variable, the explanatory variable, and the third variable. According to Tu et al. (2008), when all three variables are continuous, the phenomenon is called suppression; when all three variables are categorical, the phenomenon is called Simpson’s Paradox; and when the outcome variable and the third variable are continuous but the explanatory variable is categorical, the phenomenon is called Lord’s Paradox. We show that (a) the strong form of Simpson’s Paradox is equivalent to negative suppression for a $${2 \times 2 \times 2}$$2×2×2 contingency table, (b) the weak form of Simpson’s Paradox is equivalent to classical suppression for a $${2 \times 2 \times 2}$$2×2×2 contingency table, and (c) Lord’s Paradox is not the same phenomenon as suppression or Simpson’s Paradox.
Symptoms and yield loss caused by rice stripe mosaic virus
Authors: Chen Siping , Li Weilin , Huang Xiuqin , Chen Biao , Zhang Tong , Zhou Guohui 
Published: November 2019

Abstract
Background
Rice stripe mosaic virus (RSMV) is a tentative new Cytorhabdovirus species in family Rhabdoviridae transmitted by the leafhopper Recilia dorsalis. Although the virus was first detected in southern China in 2015, few studies have investigated rice symptoms and yield losses caused by RSMV infection.

Methods
In this study, we observed and systematically compared symptoms of three virally infected, representative varieties of indica, hybrid and japonica rice and determined the yield parameters of the artificially inoculated plants.

Results
The three RSMV-infected cultivated rice varieties exhibited slight dwarfing, striped mosaicism, stiff, crinkled or even twisted leaves, an increased number of tillers, delayed heading, cluster-shaped shortening of panicles and mostly unfilled grains. Slight differences in symptom occurrence time were observed under different environmental conditions. For example, mosaic symptoms appeared earlier and crinkling symptoms appeared later, with both symptoms later receding in some infected plants. Yield losses due to RSMV also differed among varieties. The most serious yield reduction was experienced by indica rice (cv. Meixiangzhan), followed by hybrid indica rice (cv. Wuyou 1179) and then japonica (cv. Nipponbare). Single panicle weight, seed setting rate and 1000-kernel weight were reduced in the three infected varieties compared with healthy plants—by 85.42, 94.85 and 31.56% in Meixiangzhan; 52.43, 53.06 and 25.65% in Wuyou 1179 and 25.53, 49.32 and 23.86% in Nipponbare, respectively.

Conclusions
Our findings contribute basic data for field investigations, formulation of prevention and control strategies and further study of the pathogenesis of RSMV.
First evidence of a new simian adenovirus clustering with Human mastadenovirus F viruses
Authors: Lange Christian E. , Niama Fabien R. , Cameron Kenneth , Olson Sarah H. , Aime Nina Rock , Ondzie Alain , Bounga Gerard , Smith Brett R. , Pante Jasmine , Reed Patricia , Tamufe Ubald , Laudisoit Anne , Goldstein Tracey , Bagamboula MPassi Romain , Joly Damien O. 
Published: November 2019

Abstract
Background
Adenoviruses play an important role as human pathogens, though most infections are believed to be asymptomatic. The over 100 human adenovirus types are classified into seven species (A-G), some of which include simian adenoviruses. Recent findings have highlighted that simian adenoviruses have a zoonotic potential and that some human adenoviruses are likely the result of relatively recent spillover events.

Methods
In order to evaluate the risks associated with primates hunted and sold as bushmeat, multiple samples from 24 freshly killed monkeys were collected in the Republic of the Congo and tested for adenovirus DNA by PCRs targeting the conserved DNA polymerase and hexon genes.

Results
The DNA of a novel simian adenovirus was detected in a moustached monkey (Cercopithecus cephus) by the DNA polymerase PCR, but not by the hexon PCR. The 275 nucleotide amplicon was most closely related to members of the Human mastadenovirusF species (93% HAdV-40 and 89% HAdV-41 amino acid identity), rather than to other known simian adenoviruses.

Conclusions
The phylogenetic clustering with Human mastadenovirusF sequences suggests a common ancestor, more recent than the last common ancestor of humans and moustached monkeys. The findings increase concerns about the zoonotic potential of simian adenoviruses and highlight the need for more research and surveillance on the issue.
The effect of western diet on mice brain lipid composition
Authors: Pakiet Alicja , Jakubiak Agnieszka , Czumaj Aleksandra , Sledzinski Tomasz , Mika Adriana 
Published: November 2019

AbstractBackgroundThe appropriate fatty acids composition of brain lipids is critical for functioning of this organ. The alterations of brain fatty acids composition may lead to neurological and neurodegenerative diseases.MethodsThe aim of this work was to evaluate the effect of western diet containing high fat content on fatty acid composition of brain lipids. In this study we used mice fed high fat diet (HFD) for 19 weeks. Brain lipids were separated by SPE extraction and fatty acid composition in chow, mice serum, brain and other tissues was analyzed by GC-MS method.ResultsThe body weight and adipose tissue weigh of mice after HFD increased significantly. The concentrations of most of fatty acids in serum of mice after HFD increased, due to their higher delivery from food. Unexpectedly the serum eicosapentaenoic acid (EPA) concentration was lower in mice after HFD than in controls. Also the brain, and other tissue EPA content was lower. Among studied groups of brain lipids EPA was significantly decreased in phospholipids and sphingolipids.ConclusionsConsidering important role of brain EPA including maintaining of appropriate composition of cell membrane lipids and anti-inflammatory properties we conclude that decrease of brain EPA after western diet may result in impaired brain function.