47 research outputs found

    Women's motivations for sex: Exploring the diagnostic and statistical manual, fourth edition, text revision criteria for hypoactive sexual desire and female sexual arousal disorders

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    Introduction. There are problems with the existing definition of hypoactive sexual desire disorder (HSDD) in that desire for sex and sexual fantasy are not a universal experience. Aims. To explore: (i) women’s motivations to engage in sexual activity; (ii) frequency and predictors of sexual fantasies; (iii) sexual arousal; (iv) recognition of sexual arousal; and (v) association between relationship duration and these variables. Methods. Three thousand six hundred eighty-seven women completed a web-based survey of previously pilot-tested items. Main Outcome Measures. Investigator-derived self-report questions of sexual desire and arousal, and sexual fantasies. Results. Among women who easily became aroused, 15.5% reported only engaging in sex if they felt sexual desire at the outset whereas 30.7% typically or always accessed desire only once they were aroused. Women in longer-term relationships engaged in sex with no sexual desire more often (42%) than women in short-term relationships (22.4%) (P < 0.001). The percentage of women that reported fantasies only sometimes was 52.5%. A logistic regression revealed that religion (odds ratio [OR] = 1.45; P < 0.001), difficulty getting aroused (OR = 0.511; P < 0.001), responsive desire (OR = 0.919; P < 0.05), and frequency of orgasm (OR = 1.11; P < 0.05) were significantly associated with sexual fantasy. After controlling for age, relationship duration was negatively associated with frequency of initiating sex (r = -0.116, P < 0.001), women’s satisfaction with their own sexuality (r = -0.173, P < 0.001) and sexual satisfaction with the partner (r = -0.162, P < 0.001). Conclusions. Results reflect diversity in women’s motivations for sex, and there is evidence that responsive desire occurs in women with and without arousal difficulties. We strongly recommend relationship duration as well as adequacy of partner sexual stimulation to be recognized in any future diagnostic framework of dysfunction. Clinical implications as well as those for future diagnostic nomenclature are considered

    ABT-869, a multitargeted receptor tyrosine kinase inhibitor: inhibition of FLT3 phosphorylation and signaling in acute myeloid leukemia

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    In 15% to 30% of patients with acute myeloid leukemia (AML), aberrant proliferation is a consequence of a juxtamembrane mutation in the FLT3 gene (FMS-like tyrosine kinase 3–internal tandem duplication [FLT3-ITD]), causing constitutive kinase activity. ABT-869 (a multitargeted receptor tyrosine kinase inhibitor) inhibited the phosphorylation of FLT3, STAT5, and ERK, as well as Pim-1 expression in MV-4-11 and MOLM-13 cells (IC_(50) approximately 1-10 nM) harboring the FLT3-ITD. ABT-869 inhibited the proliferation of these cells (IC_(50) = 4 and 6 nM, respectively) through the induction of apoptosis (increased sub-G_(0)/G_1 phase, caspase activation, and PARP cleavage), whereas cells harboring wild-type (wt)–FLT3 were less sensitive. In normal human blood spiked with AML cells, ABT-869 inhibited phosphorylation of FLT3 (IC_(50) approximately 100 nM), STAT5, and ERK, and decreased Pim-1 expression. In methylcellulose-based colony-forming assays, ABT-869 had no significant effect up to 1000 nM on normal hematopoietic progenitor cells, whereas in AML patient samples harboring both FLT3-ITD and wt-FLT3, ABT-869 inhibited colony formation (IC_(50) = 100 and 1000 nM, respectively). ABT-869 dose-dependently inhibited MV-4-11 and MOLM-13 flank tumor growth, prevented tumor formation, regressed established MV-4-11 xenografts, and increased survival by 20 weeks in an MV-4-11 engraftment model. In tumors, ABT-869 inhibited FLT3 phosphorylation, induced apoptosis (transferase-mediated dUTP nick-end labeling [TUNEL]) and decreased proliferation (Ki67). ABT-869 is under clinical development for AML

    Expert range maps of global mammal distributions harmonised to three taxonomic authorities

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    AimComprehensive, global information on species' occurrences is an essential biodiversity variable and central to a range of applications in ecology, evolution, biogeography and conservation. Expert range maps often represent a species' only available distributional information and play an increasing role in conservation assessments and macroecology. We provide global range maps for the native ranges of all extant mammal species harmonised to the taxonomy of the Mammal Diversity Database (MDD) mobilised from two sources, the Handbook of the Mammals of the World (HMW) and the Illustrated Checklist of the Mammals of the World (CMW).LocationGlobal.TaxonAll extant mammal species.MethodsRange maps were digitally interpreted, georeferenced, error-checked and subsequently taxonomically aligned between the HMW (6253 species), the CMW (6431 species) and the MDD taxonomies (6362 species).ResultsRange maps can be evaluated and visualised in an online map browser at Map of Life (mol.org) and accessed for individual or batch download for non-commercial use.Main conclusionExpert maps of species' global distributions are limited in their spatial detail and temporal specificity, but form a useful basis for broad-scale characterizations and model-based integration with other data. We provide georeferenced range maps for the native ranges of all extant mammal species as shapefiles, with species-level metadata and source information packaged together in geodatabase format. Across the three taxonomic sources our maps entail, there are 1784 taxonomic name differences compared to the maps currently available on the IUCN Red List website. The expert maps provided here are harmonised to the MDD taxonomic authority and linked to a community of online tools that will enable transparent future updates and version control

    Integrated genomic characterization of oesophageal carcinoma

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    Oesophageal cancers are prominent worldwide; however, there are few targeted therapies and survival rates for these cancers remain dismal. Here we performed a comprehensive molecular analysis of 164 carcinomas of the oesophagus derived from Western and Eastern populations. Beyond known histopathological and epidemiologic distinctions, molecular features differentiated oesophageal squamous cell carcinomas from oesophageal adenocarcinomas. Oesophageal squamous cell carcinomas resembled squamous carcinomas of other organs more than they did oesophageal adenocarcinomas. Our analyses identified three molecular subclasses of oesophageal squamous cell carcinomas, but none showed evidence for an aetiological role of human papillomavirus. Squamous cell carcinomas showed frequent genomic amplifications of CCND1 and SOX2 and/or TP63, whereas ERBB2, VEGFA and GATA4 and GATA6 were more commonly amplified in adenocarcinomas. Oesophageal adenocarcinomas strongly resembled the chromosomally unstable variant of gastric adenocarcinoma, suggesting that these cancers could be considered a single disease entity. However, some molecular features, including DNA hypermethylation, occurred disproportionally in oesophageal adenocarcinomas. These data provide a framework to facilitate more rational categorization of these tumours and a foundation for new therapies

    Impact of COVID-19 on cardiovascular testing in the United States versus the rest of the world

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    Objectives: This study sought to quantify and compare the decline in volumes of cardiovascular procedures between the United States and non-US institutions during the early phase of the coronavirus disease-2019 (COVID-19) pandemic. Background: The COVID-19 pandemic has disrupted the care of many non-COVID-19 illnesses. Reductions in diagnostic cardiovascular testing around the world have led to concerns over the implications of reduced testing for cardiovascular disease (CVD) morbidity and mortality. Methods: Data were submitted to the INCAPS-COVID (International Atomic Energy Agency Non-Invasive Cardiology Protocols Study of COVID-19), a multinational registry comprising 909 institutions in 108 countries (including 155 facilities in 40 U.S. states), assessing the impact of the COVID-19 pandemic on volumes of diagnostic cardiovascular procedures. Data were obtained for April 2020 and compared with volumes of baseline procedures from March 2019. We compared laboratory characteristics, practices, and procedure volumes between U.S. and non-U.S. facilities and between U.S. geographic regions and identified factors associated with volume reduction in the United States. Results: Reductions in the volumes of procedures in the United States were similar to those in non-U.S. facilities (68% vs. 63%, respectively; p = 0.237), although U.S. facilities reported greater reductions in invasive coronary angiography (69% vs. 53%, respectively; p < 0.001). Significantly more U.S. facilities reported increased use of telehealth and patient screening measures than non-U.S. facilities, such as temperature checks, symptom screenings, and COVID-19 testing. Reductions in volumes of procedures differed between U.S. regions, with larger declines observed in the Northeast (76%) and Midwest (74%) than in the South (62%) and West (44%). Prevalence of COVID-19, staff redeployments, outpatient centers, and urban centers were associated with greater reductions in volume in U.S. facilities in a multivariable analysis. Conclusions: We observed marked reductions in U.S. cardiovascular testing in the early phase of the pandemic and significant variability between U.S. regions. The association between reductions of volumes and COVID-19 prevalence in the United States highlighted the need for proactive efforts to maintain access to cardiovascular testing in areas most affected by outbreaks of COVID-19 infection

    An Adaptable Generation Approach to Agenda Management

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    As software engineering efforts move to more complex, distributed environments, coordinating the activities of people and tools becomes very important. While groupware systems address user level communication needs and distributed computing technologies address tool level communication needs, few attempts have been made to synthesize the common needs of both. This paper describes our attempt to do exactly that. We describe a framework for generating an agenda management system (AMS) from a specification of the system&apos;s requirements. The framework can support a variety of AMS requirements and produces a customized AMS that is appropriate for use by both humans and software tools. The framework and generated system support evolution in several ways, allowing existing systems to be extended as requirements change. We also describe our experiences using this approach to create an AMS that supports a process programming environment. KEYWORDS Agenda management, process programming, coopera..

    Well-Being of Family Caregivers of Persons with Late-Stage Huntington\u27s Disease: Lessons in Stress and Coping

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    The utility of a stress-process model in predicting health and quality-of-life outcomes for family caregivers of persons with Huntington\u27s disease (HD) was tested. HD is an inherited neurodegenerative disease that poses particular challenges to patients and families. Seventeen family caregivers were interviewed and completed scales measuring stressors, appraisals, protective factors, and outcomes. No direct relationship between stress and caregiver well-being was found; the impact of stressors was mediated by appraisals and protective factors. Bivariate correlation analysis revealed significant positive relationships between satisfaction with emotionally supportive communication and life satisfaction. Significant positive correlations were found between positive appraisals of the benefits of the caregiving experience and life satisfaction and health. Mastery was significantly positively correlated with life satisfaction and negatively correlated with depressive symptoms; similar results were found between spirituality and outcome measures. Caregivers\u27 interpretations appeared to have a more significant impact on well-being than did objective characteristics of the experience
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