438 research outputs found
The adipokines in cancer cachexia
Cachexia is a devastating pathology induced by several kinds of diseases, including cancer. The hallmark of cancer cachexia is an extended weight loss mainly due to skeletal muscle wasting and fat storage depletion from adipose tissue. The latter exerts key functions for the health of the whole organism, also through the secretion of several adipokines. These hormones induce a plethora of effects in target tissues, ranging from metabolic to differentiating ones. Conversely, the decrease of the circulating level of several adipokines positively correlates with insulin resistance, metabolic syndrome, diabetes, and cardiovascular disease. A lot of findings suggest that cancer cachexia is associated with changed secretion of adipokines by adipose tissue. In agreement, cachectic patients show often altered circulating levels of adipokines. This review reported the findings of adipokines (leptin, adiponectin, resistin, apelin, and visfatin) in cancer cachexia, highlighting that to study in-depth the involvement of these hormones in this pathology could lead to the development of new therapeutic strategies
Predictive maintenance: a novel framework for a data-driven, semi-supervised, and partially online prognostic health management application in industries
Prognostic Health Management (PHM) is a predictive maintenance strategy, which is based on Condition Monitoring (CM) data and aims to predict the future states of machinery. The existing literature reports the PHM at two levels: methodological and applicative. From the methodological point of view, there are many publications and standards of a PHM system design. From the applicative point of view, many papers address the improvement of techniques adopted for realizing PHM tasks without covering the whole process. In these cases, most applications rely on a large amount of historical data to train models for diagnostic and prognostic purposes. Industries, very often, are not able to obtain these data. Thus, the most adopted approaches, based on batch and off-line analysis, cannot be adopted. In this paper, we present a novel framework and architecture that support the initial application of PHM from the machinery producers’ perspective. The proposed framework is based on an edge-cloud infrastructure that allows performing streaming analysis at the edge to reduce the quantity of the data to store in permanent memory, to know the health status of the machinery at any point in time, and to discover novel and anomalous behaviors. The collection of the data from multiple machines into a cloud server allows training more accurate diagnostic and prognostic models using a higher amount of data, whose results will serve to predict the health status in real-time at the edge. The so-built PHM system would allow industries to monitor and supervise a machinery network placed in different locations and can thus bring several benefits to both machinery producers and users. After a brief literature review of signal processing, feature extraction, diagnostics, and prognostics, including incremental and semi-supervised approaches for anomaly and novelty detection applied to data streams, a case study is presented. It was conducted on data collected from a test rig and shows the potential of the proposed framework in terms of the ability to detect changes in the operating conditions and abrupt faults and storage memory saving. The outcomes of our work, as well as its major novel aspect, is the design of a framework for a PHM system based on specific requirements that directly originate from the industrial field, together with indications on which techniques can be adopted to achieve such goals
ENVIRONMENTAL ASSESSMENT OF AN INNOVATIVE PLANT FOR THE WASTEWATER PURIFICATION IN THE BEVERAGE INDUSTRY
Nowadays, efforts to reduce the resource depletion and environmental emissions from the anthropic activities, are mandatory for sustainable development pattern. Among the key resources to save, pure water is as important as critic due to its scarcity and its essential role for life and growth. Furthermore, during the last decades, rising attention from institutions and industries is toward solutions for the water intensity decrease and wastewater recovery. This paper proposes the environmental assessment of an innovative wastewater collection and purification plant tailored to a mid-size beverage industry aiming at locally closing the loop of the water chain, allowing its recirculation and local reuse. After the description of the functional module features, sizes and design, based on a prototype actually working in Italy, the paper follows the ISO 14040 standards to develop an environmental assessment of the industrial system, quantifying the impact rising from the manufacturing and the assembly phases
Authigenic minerals from the Paola Ridge (southern Tyrrhenian Sea): Evidences of episodic methane seepage.
How to make a 350-m-thick lowstand systems tract in 17,000 years : The Late Pleistocene Po River (Italy) lowstand wedge
Peer reviewedPublisher PD
Simulating International Shipments of Vegetable Oils: Focus on Quality Changes
This investigation evaluated the quality changes of commercial vegetable oils after
different simulated shipments. In particular, the oils were placed in containers with or
without thermal insulation and subjected to two simulated shipments, from Italy to Los
Angeles and to Quebec. The temperature profiles were monitored to simulate the real
shipments conditions in laboratory through properly developed climate chambers.
Different quality parameters were evaluated before and after the simulations, showing a
high degree of oxidation for samples shipped to Los Angeles in standard containers. In
this study, the thermal insulation container was effective in protecting samples from
potential oxidative damage during simulated shipping.The authors would like to thank Enhancement of the Palestinian University System (E- PLUS) for PhD scholarship grants
financed by the Italian Ministry of Foreign Affairs-Directorate General for Cooperation and Development (coordinated
by the University of Pavia)
An integrated analysis of the effects of Esculentin 1-21 on Saccharomyces cerevisiae.
The antimicrobial peptide esculentin 1–21 (Esc 1–21) is a shorter synthetic version of the 46-residue peptide occurring in the Rana esculenta skin secretion. Here we propose an integrated proteomic and transcriptomic approach to interpret the biological effects of this peptide on Saccharomyces cerevisiae. We further investigated the response to this peptide by correlating the results of the transcriptome and proteome analysis with phenotypic effects. The results show that S. cerevisiae adapts to Esc 1–21 using the High Osmolarity Glycerol (HOG) pathway involved in osmotic tolerance and cell wall maintenance. Comparative proteomics reveals that Esc 1–21 causes downregulation of enzymes of the lower glycolytic pathway and in genes involved in spindle body formation and remodelling of cell-wall synthesis. Moreover the peptide induces downexpression of protein actin within 45 min and cells pre-treated with peptide show less sensitivity to osmotic stress and increased sensitivity to
heat shock stress. The results obtained with the two different methodologies are in agreement at the cellular process levels. A combined approach may help elucidate the main aspects related to the effects of this peptide on the eukaryotic cell. The employment of different technologies may reveal the potential and limitations of each adapted approach in a prospective application for drug screening
The in vivo tyrosine phosphorylation level of yeast immunophilin Fpr3 is influenced by the LMW-PTP Ltp1.
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