2,249 research outputs found

    Linking type 2 diabetes and gynecological cancer: An introductory overview

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    Type 2 diabetes (T2D) is a chronic disease with a growing prevalence and a leading cause of death in many countries. Several epidemiological studies observed an association between T2D and increased risk of many types of cancer, such as gynecologic neoplasms (endometrial, cervical, ovarian and vulvar cancer). Insulin resistance, chronic inflammation and high free ovarian steroid hormones are considered the possible mechanisms behind this complex relationship. A higher risk of endometrial cancer was observed in T2D, even though this association largely attenuated after adjusting for obesity. A clear relationship between the incidence of cervical cancer (CC) and T2D has still not be determined; however T2D might have an impact on prognosis in patients with CC. To date, studies on the association between T2D and ovarian cancer (OC) are limited. The effect of pre-existing diabetes on cancer-specific mortality has been evaluated in several studies, with less clear results. Other epidemiological and experimental studies focused on the potential role of diabetes medications, mainly metformin, in cancer development in women. The correct understanding of the link between T2D and gynecologic cancer risk and mortality is currently imperative to possibly modify screening and diagnostic-therapeutic protocols in the future

    Ibn Tufail and the Autodidact Philosopher’s Heredity

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    Se expone aquí brevemente el contenido de la obra de Ibn Tufayl, El filósofo autodidacto, para pre-sentar a continuación una recapitulación de cómo contribuyó a inspirar a otros pensadores en la redacción de sus escritos, en especial en el caso de El Criticón de Baltasar Gracián y para señalar también la influen-cia que dejó la imagen del autodidacta en el pensamiento filosófico posterior.The essence of the work of the autodidact philosopher Ibn Tufail is briefly presented here, both to emphasize how it influenced other thinkers in the way they edited their manuscripts —particularly how Baltasar Gracian edited his El Criticon— and to highlight his influence on later philosophical thought

    L’ambigua dote di Scilla (a proposito di Ov. Met. 8.53-54)

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    Ovid’s description of Scylla shows traces of both the elegiac tradition, which features her as a victim (like Propertius’ Tarpeia), and of tragedy (cf. Aesch. Choe. 613 ff.), where she is presented as a blood-thirsty heroine

    La policromia dei Monochromata

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    The so-called "monochromes" on marble are twelve paintings on marble slabs from the Roman age, mostly coming from Herculaneum, and are now preserved at the National Archaeological Museum of Naples and at the Kunsthistorisches Museum of Vienna. These paintings were included in several publications. Despite that, they continued to raise many questions and there was a lack of studies focusing entirely on them. Furthermore, it had barely been clarified that, despite the name "monochromes", these works are completely polychrome. By combining the archaeological data and the information obtained from the non-invasive archaeometrical analysis, it was possible to achieve brand new results, which allowed for a better understanding of some aspects of these works, such as their iconography, the used pigments used and the clients’ choices

    Soundscape in Times of Change: Case Study of a City Neighbourhood During the COVID-19 Lockdown

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    The coronavirus disease 2019 (COVID-19) lockdown meant a greatly reduced social and economic activity. Sound is of major importance to people's perception of the environment, and some remarked that the soundscape was changing for the better. But are these anecdotal reports based in truth? Has traffic noise from cars and airplanes really gone down, so that more birdsong can be heard? Have socially distanced people quietened down? This article presents a case study of the human perception of environmental sounds in an urban neighborhood in the Basque Country between 15 March and 25 May 2020. The social restrictions imposed through national legislation divided the 69-day period into three phases. We collected observations, field audio recordings, photography, and diary notes on 50 days. Experts in soundscape and architecture were presented with the recordings, in randomized order, and made two separate perceptual analyses. One group (N = 11) rated the recordings for pleasantness and eventfulness using an adapted version of the Swedish Soundscape Quality Protocol, and a partly overlapping group (N = 12) annotated perceived sound events with free-form semantic labels. The labels were systematically classified into a four-level Taxonomy of Sound Sources, allowing an estimation of the relative amounts of Natural, Human, and Technological sounds. Loudness and three descriptors developed for bioacoustics were extracted computationally. Analysis showed that Eventfulness, Acoustic Complexity, and Acoustic Richness increased significantly over the time period, while the amount of Technological sounds decreased. These observations were interpreted as reflecting changes in people's outdoor activities and behavior over the whole 69-day period, evidenced in an increased presence of Human sounds of voices and walking, and a significant shift from motorized vehicles toward personal mobility devices, again evidenced by perceived sounds. Quantitative results provided a backdrop against which qualitative analyses of diary notes and observations were interpreted in relation to the restrictions and the architectural specifics of the site. An integrated analysis of all sources pointed at the temporary suspension of human outdoor activity as the main reason for such a change. In the third phase, the progressive return of street life and the usage of personal mobility vehicles seemed to be responsible for a clear increase in Eventfulness and Loudness even in the context of an overall decrease of Technological sounds. Indoor human activity shared through open windows and an increased presence of birdsong emerge as a novel characteristic element of the local urban soundscape. We discuss how such changes in the acoustic environment of the site, in acoustic measurements and as perceived by humans, point toward the soundscape being a crucial component of a comprehensive urban design strategy that aims to improve health and quality of life for increasingly large and dense populations in the future.This research was conducted with funding from Politcnico di Milano - Design (Lenzi), EKOPOL (Sábada), and CityU StUp Grant 7200671 (Lindborg)

    Improving the quality of the acoustic environment in neonatal intensive care units: a review of scientific literature and technological solutions

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    There is an increased awareness of how the quality of the acoustic environment impacts the lives of human beings. Several studies have shown that sound pollution has adverse effects on many populations, from infants to adults, in different environments and workplaces. Hospitals are susceptible environments that require special attention since sound can aggravate patients' health issues and negatively impact the performance of healthcare professionals. This paper focuses on Neonatal Intensive Care Units (NICU) as an especially sensitive case representing a hostile acoustic environment in which healthcare professionals have little awareness of how unwanted sounds impact the perceived quality of the soundscape. We performed a semi-systematic review of scientific literature on sound assessment studies in NICU from 2001. A thematic analysis was performed to identify emerging themes that informed the analysis of 27 technological solutions for the assessment of sound quality in indoor and outdoor environments. Solutions were categorized by functions and evaluation methods and grouped according to the characteristics of the design components, i.e., acquisition, computation, and communication strategies. Results highlight a lack of solutions to assess the qualitative characteristics of indoor environments such as NICU and forecast the footprint that different sound sources have on the indoor soundscape. Such solutions are urgently needed to empower healthcare professionals, and especially nurses, to actively modify and prevent the negative impact of unwanted sounds on NICU and critical care soundscape

    Implicit learning deficit in children with Duchenne muscular dystrophy: Evidence for a cerebellar cognitive impairment?

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    This study aimed at comparing implicit sequence learning in individuals affected by Duchenne Muscular Dystrophy without intellectual disability and age-matched typically developing children. A modified version of the Serial Reaction Time task was administered to 32 Duchenne children and 37 controls of comparable chronological age. The Duchenne group showed a reduced rate of implicit learning even if in the absence of global intellectual disability. This finding provides further evidence of the involvement of specific aspects of cognitive function in Duchenne muscular dystrophy and on its possible neurobiological substrate

    Characterization of c-Kit receptor function in cardiac regeneration by using transgenic mouse models

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    Background. Cardiac stem cells expressing the tyrosine kinase receptor c-kit have been recently used in in vivo and in vitro cardiac regenerative studies. However, it remains to be clarified whether the c-kit receptor itself plays a critical role in the process of cardiac regeneration. In order to clarify this point, we will explore whether c-Kit receptor affects cardiac stem cells proliferation, survival, migration and differentiation after heart injury. Methods and Results. We have generated transgenic mice in which an activatory point mutation (c-KitD814Y mice) has been introduced in the kinase domain of the c-kit gene. Initially, we have analyzed c-kit expression in tissues and organs at different stages of embryonal and post-natal development through immunohystochemical and biochemical analyses. We have found that in two transgenic lines the receptor is highly expressed and activated in heart, testis and cerebellum, compared to wild type mice. In order to follow the fate of the c-Kit transgenic stem cells we crossed c-KitD814Y mice with mice expressing GFP under c-Kit regulative sequences control. By cytofluorimetric and fluorescence microscopy analyses, we observed a 2 fold of increase in the number of c-kit positive cells on heart samples from double transgenic mice at different ages. To verify the c-kit role in cardiac regeneration we performed a necrotic heart damage in vivo and monitored cardiac repair in transgenic mice versus wild-type mice. After 9 days the wounded hearts of transgenic mice presented a larger connectival tissue area compared to wild-type mice. On the contrary, after 45 days a consistent reduction of fibrotic area was observed in transgenic mice. These preliminary results suggest a faster repair of damaged heart area that contain stem cells with an activated c-kit receptor. Further in vitro and in vivo experiments will be performed to assess whether transgenic c-kit cells directly transdifferentiate into cardiomyocytes or whether they act in a paracrine manner. In summary, the generation of transgenic mice carrying a constitutively activated c-kit in cardiac stem cells, will allow to investigate the role of the receptor and to highlight the molecular mechanism underlying heart regeneration

    Next-generation sequencing approach to hyperCKemia: A 2-year cohort study

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    Next-generation sequencing (NGS) was applied in molecularly undiagnosed asymptomatic or paucisymptomatic hyperCKemia to investigate whether this technique might allow detection of the genetic basis of the condition
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