3,249 research outputs found

    The New Virtual Crackdown on Sex Workers’ Rights: Perspectives from the United States

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    On 11 April 2018, the Fight Online Sex Trafficking Act (FOSTA) was signed into law in the United States. FOSTA introduced new provisions to amend the Communications Act of 1934 so that websites can be prosecuted if they engage ‘in the promotion or facilitation of prostitution’ or ‘facilitate traffickers in advertising the sale of unlawful sex acts with sex trafficking victims.’ While supporters of the law claim that its aim is to target human traffickers, its text makes no effort to differentiate between trafficking and consensual sex work and it functionally includes websites where workers advertise services or share information, including safety tips.[3] Following the law’s passage—and even before its full implementation—sex workers felt its impact as websites began to eliminate platforms previously used to advertise services. Backpage, an adult advertising website, was pre-emptively seized by the FBI. Other platforms began to censor or remove content related to sex work, including Google, Craigslist, and many online advertising networks. Sex workers in the United States have denounced the passage of FOSTA for reducing workers’ ability to screen clients and ensure safety practices. This paper provides an overview of the findings of a recent survey with sex workers in the United States, details the advent of similar initiatives in other countries, and explores how the legislation conflates trafficking with consensual sex work

    The Women of Wrath

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    Our group decided that we wanted to research the Ancient Greek myths of Pandora, the Harpies, the Fates, and the Furies to discover what these mythological figures stood for in the eyes of the Ancient Greeks. Once our research in our respective topics was complete, we came back together to look for comparisons between our separate figures, and the similarities we found eventually led us to the name of our project: The Women of Wrath. Faculty Sponsor: Lisa Higgin

    Understanding the Mood of Social Media Messages

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    Social Media is a valuable source of information when seeking to understand community opinion and sentiment about issues of public interest. Such analysis is usually based on sentiment or emotion processing using machine learning techniques or references a curated lexicon of words to measure the emotive intensity being expressed. The lexicon approach can be limited by the sparsity problem, where the lexicon words are not present in the text being processed, and context issues, where the lexicon words have different meanings in the domain under investigation. We have developed a novel technique based on word embeddings to mitigate these issues and present a case study showing its application, where the mood expressed by the community on social media about the Centenary of Armistice in Australia was determined in near real-time

    Dasatinib inhibits the growth of molecularly heterogeneous myeloid leukemias.

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    PURPOSE: Dasatinib is a dual Src/Abl inhibitor recently approved for Bcr-Abl+ leukemias with resistance or intolerance to prior therapy. Because Src kinases contribute to multiple blood cell functions by triggering a variety of signaling pathways, we hypothesized that their molecular targeting might lead to growth inhibition in acute myeloid leukemia (AML). EXPERIMENTAL DESIGN: We studied growth factor-dependent and growth factor-independent leukemic cell lines, including three cell lines expressing mutants of receptor tyrosine kinases (Flt3 or c-Kit) as well as primary AML blasts for responsiveness to dasatinib. RESULTS: Dasatinib resulted in the inhibition of Src family kinases in all cell lines and blast cells at approximately 1 x 10(-9) mol/L. It also inhibited mutant Flt3 or Kit tyrosine phosphorylation at approximately 1 x 10(-6) mol/L. Mo7e cells expressing the activating mutation (codon 816) of c-Kit were most sensitive to growth inhibition with a GI(50) of 5 x 10(-9) mol/L. Primary AML blast cells exhibited a growth inhibition of \u3c1 x\u3e10(-6) mol/L. Cell lines that showed growth inhibition at approximately 1 x 10(-6) mol/L showed a G(1) cell cycle arrest and correlated with accumulation of p21 and p27 protein. The addition of rapamycin or cytotoxic agents enhanced growth inhibition. Dasatinib also caused the apoptosis of Mo7e cells expressing oncogenic Kit. CONCLUSIONS: Although all of the precise targets for dasatinib are not known, this multikinase inhibitor causes either growth arrest or apoptosis in molecularly heterogeneous AML. The addition of cytotoxic or targeted agents can enhance its effects

    One-Year Consumption of a Mediterranean-Like Dietary Pattern With Vitamin D3 Supplements Induced Small Scale but Extensive Changes of Immune Cell Phenotype, Co-receptor Expression and Innate Immune Responses in Healthy Elderly Subjects:Results From the United Kingdom Arm of the NU-AGE Trial

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    Amongst the major features of aging are chronic low grade inflammation and a decline in immune function. The Mediterranean diet (MedDiet) is considered to be a valuable tool to improve health status, and although beneficial effects have been reported, to date, immunological outcomes have not been extensively studied. We aimed to test the hypothesis that 1 year of a tailored intervention based on the MedDiet with vitamin D (10 μg/day) would improve innate immune responses in healthy elderly subjects (65–79 years) from the English cohort (272 subjects recruited) of the NU-AGE randomized, controlled study (clinicaltrials.gov, NCT01754012). Of the 272 subjects forming the United Kingdom cohort a subgroup of 122 subjects (61 in the intervention group and 61 in the control group) was used to evaluate ex vivo innate immune response, phenotype of circulating immune cells, and levels of pro- and anti-inflammatory markers. Odds Ratio (OR) was calculated for all the parameters analyzed. After adjustment by gender, MedDiet-females with a BMI < 31 kg/m2 had a significant upregulation of circulating CD40+CD86+ cells (OR 3.44, 95% CI 1.01–11.75, P = 0.0437). Furthermore, in all MedDiet subjects, regardless of gender, we observed a MedDiet-dependent changes, although not statistically significant of immune-critical parameters including T cell degranulation, cytokine production and co-receptor expression. Overall, our study showed that adherence to an individually tailored Mediterranean-like dietary pattern with a daily low dose of vitamin D3 supplements for 1 year modified a large variety of parameters of immune function in healthy, elderly subjects. We interpreted these data as showing that the MedDiet in later life could improve aspects of innate immunity and thus it could aid the design of strategies to counteract age-associated disturbances

    Calcineurin regulates innate antifungal immunity in neutrophils

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    Patients taking immunosuppressive drugs, like cyclosporine A (CsA), that inhibit calcineurin are highly susceptible to disseminated fungal infections, although it is unclear how these drugs suppress resistance to these opportunistic pathogens. We show that in a mouse model of disseminated Candida albicans infection, CsA-induced susceptibility to fungal infection maps to the innate immune system. To further define the cell types targeted by CsA, we generated mice with a conditional deletion of calcineurin B (CnB) in neutrophils. These mice displayed markedly decreased resistance to infection with C. albicans, and both CnB-deficient and CsA-treated neutrophils showed a defect in the ex vivo killing of C. albicans. In response to the fungal-derived pathogen-associated molecular pattern zymosan, neutrophils lacking CnB displayed impaired up-regulation of genes (IL-10, Cox2, Egr1, and Egr2) regulated by nuclear factor of activated T cells, the best characterized CnB substrate. This activity was Myd88 independent and was reproduced by stimulation with the β(1,3) glucan curdlan, indicating that dectin-1, rather than toll-like receptors, is the upstream activator of calcineurin. Our results suggest that disseminated fungal infections seen in CsA-treated patients are not just a general consequence of systemic suppression of adaptive immunity but are, rather, a result of the specific blockade of evolutionarily conserved innate pathways for fungal resistance

    Persistence of haemostatic response following gene therapy with valoctocogene roxaparvovec in severe haemophilia A.

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    INTRODUCTION: Valoctocogene roxaparvovec is an investigational AAV5-based factor VIII (FVIII) gene therapy that has demonstrated sustained clinical benefit in people with severe haemophilia A. AIM: To report safety, tolerability, efficacy, and quality of life (QOL) among participants who received valoctocogene roxaparvovec in a phase 1/2 clinical study (NCT02576795). METHODS: Men ≥18 years of age with severe haemophilia A (FVIII ≤1 IU/dl) without history of FVIII inhibitors or anti-AAV5 antibodies received a single infusion of valoctocogene roxaparvovec and were followed for 5 years (6 × 1013 vg/kg dose, n = 7) and 4 years (4 × 1013 vg/kg dose, n = 6). RESULTS: Over the past 2 years, few adverse events and no FVIII inhibitors were reported. Per chromogenic substrate (CSA) assay at years 5 and 4, four of seven and three of six participants in the 6 × 1013 and 4 × 1013 vg/kg cohorts, respectively, maintained median FVIII levels >5 IU/dl, corresponding to mild haemophilia. By regression analysis, rate of change in FVIII activity was -0.14 (95% confidence interval [CI]: -.32 to .03) IU/dl/wk in the 6 × 1013 vg/kg cohort in year 5 and -.06 (95% CI: -.14 to .01) IU/dl/wk in the 4 × 1013 vg/kg cohort in year 4. No participants resumed FVIII prophylaxis, and eight of 13 participants reported zero bleeds in the past 2 years. Improved QOL from baseline persisted in the 6 × 1013 vg/kg cohort; all six Haemo-QOL-A domain scores increased. For the 4 × 1013 vg/kg cohort, high baseline Haemo-QOL-A scores persisted. CONCLUSION: These results demonstrate transgene expression and haemostatic response for up to 5 years in individuals with haemophilia A

    Introducing the World Register of Introduced Marine Species (WRiMS)

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    Este artículo contiene 20 páginas, 1 figura, 4 tablas.A major historical challenge for the management of anthropogenic introductions of species has been the absence of a globally standardised system for species nomenclature. For over a decade, the World Register of Marine Species (WoRMS) has provided a taxonomically authoritative classification and designation of the currently accepted names for all known marine species. However, WoRMS mainly focuses on taxonomy and does not specifically address species introductions. Here, we introduce the World Register of Introduced Marine Species (WRiMS), a database directly linked to WoRMS that includes all introduced marine species, distinguishing native and introduced geographic ranges. Both the WoRMS and WRiMS contents are continually updated by specialists who add citations of original species descriptions, key taxonomic literature, images and notes on native and introduced geographic distributions. WRiMS editors take responsibility for assessing the validity of species records by critically evaluating if a species has been introduced to a region, erroneously identified and/or potentially naturally present in a region but previously unnoticed. WRiMS currently contains 2,714 introduced species. The amount and quality of the information entered depend on the availability of experts to update its contents. Because WRiMS is global and it combines species taxonomic and geographic information with links to other resources and expertise, it is currently the most comprehensive standardised database of marine introduced species. In addition, WRiMS forms the basis for a future global early warning system of marine species introductions.WRiMS came about through funding from the University of Auckland, Census of Marine Life’s OBIS funding, and EMODnet Biology (to Mark Costello), and LifeWatch Belgium (from VLIZ). We acknowledge the Research Foundation Flanders (FWO) who, as part of the Belgian contribution to LifeWatch, provided funding to organise the second WRiMS workshop held at VLIZ, in Oostende, Belgium, during the 23rd–25th of April 2018.Peer reviewe

    Sequential LASER ART and CRISPR treatments eliminate HIV-1 in a subset of infected humanized mice

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    Elimination of HIV-1 requires clearance and removal of integrated proviral DNA from infected cells and tissues. Here, sequential long-acting slow-effective release antiviral therapy (LASER ART) and CRISPR-Cas9 demonstrate viral clearance in latent infectious reservoirs in HIV-1 infected humanized mice. HIV-1 subgenomic DNA fragments, spanning the long terminal repeats and the Gag gene, are excised in vivo, resulting in elimination of integrated proviral DNA; virus is not detected in blood, lymphoid tissue, bone marrow and brain by nested and digital-droplet PCR as well as RNAscope tests. No CRISPR-Cas9 mediated off-target effects are detected. Adoptive transfer of human immunocytes from dual treated, virus-free animals to uninfected humanized mice fails to produce infectious progeny virus. In contrast, HIV-1 is readily detected following sole LASER ART or CRISPR-Cas9 treatment. These data provide proof-of-concept that permanent viral elimination is possible

    Altered maturation of peripheral blood dendritic cells in patients with breast cancer

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    Tumours have at least two mechanisms that can alter dendritic cell (DC) maturation and function. The first affects the ability of haematopoietic progenitors to differentiate into functional DCs; the second affects their differentiation from CD14+ monocytes, promoting an early but dysfunctional maturation. The aim of this study was to evaluate the in vivo relevance of these pathways in breast cancer patients. For this purpose, 53 patients with invasive breast cancer were compared to 68 healthy controls. To avoid isolation or culture procedures for enrichment of DCs, analyses were directly performed by flow cytometry on whole-blood samples. The expression of surface antigens and intracellular accumulation of regulatory cytokines upon LPS stimulation were evaluated. The number of DCs, and in particular of the myeloid subpopulation, was markedly reduced in cancer patients (P < 0.001). Patient DCs were characterized by a more mature phenotype compared with controls (P = 0.016), and had impaired production of IL-12 (P < 0.001), These alterations were reverted by surgical resection of the tumour. To investigate the possible role of some tumour-related immunoactive soluble factors, we measured the plasmatic levels of vascular endothelial growth factor, IL-10 and spermine. A significant inverse correlation between spermine concentration and the percentage of DCs expressing IL-12 was found. Evidence was also obtained that in vitro exposure of monocyte-derived DCs to spermine promoted their activation and maturation, and impaired their function. Taken together, our results suggest that both the above-described mechanisms could concomitantly act in breast cancer to affect DC differentiation, and that spermine could be a mediator of dysfunctional maturation of DCs
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