325 research outputs found
Integrated data capturing requirements for 3D semantic modelling of cultural heritage: the inception protocol
The generation of high quality 3D models can be still very time-consuming and expensive, and the outcome of digital reconstructions is frequently provided in formats that are not interoperable, and therefore cannot be easily accessed. This challenge is even more crucial for complex architectures and large heritage sites, which involve a large amount of data to be acquired, managed and enriched by metadata.
In this framework, the ongoing EU funded project INCEPTION – Inclusive Cultural Heritage in Europe through 3D semantic modelling proposes a workflow aimed at the achievements of efficient 3D digitization methods, post-processing tools for an enriched semantic modelling, web-based solutions and applications to ensure a wide access to experts and non-experts.
In order to face these challenges and to start solving the issue of the large amount of captured data and time-consuming processes in the production of 3D digital models, an Optimized Data Acquisition Protocol (DAP) has been set up. The purpose is to guide the processes of digitization of cultural heritage, respecting needs, requirements and specificities of cultural assets
L’arte armena. Storia critica e nuove prospettive. Studies in Armenian and Eastern Christian Art 2020
L’esplorazione dell’arte armena iniziò nel diciannovesimo secolo grazie a storici dell’arte francesi, russi, tedeschi, finlandesi, austriaci e armeni e continuò nel ventesimo secolo prevalentemente con studiosi russi, armeni, ucraini, americani e italiani, che hanno portato all’attenzione del largo pubblico, non solo dei ricercatori, il patrimonio artistico di un territorio che supera i confini dell’attuale Armenia, e investe un’area definita Subcaucasia, termine con il quale si intende il territorio che dal Caucaso meridionale trapassa negli altopiani iranico e anatolico. L’interesse per l’arte armena, dai manoscritti miniati, ai khachkar, alle architetture, è cresciuto negli ultimi vent’anni conferendo a queste testimonianze una dimensione globale. Il volume illustra le caratteristiche, i temi e i metodi dei vari percorsi di ricerca emergenti dalle diverse tradizioni storiografiche tracciando così una mappa che aiuta ad orientarsi tra i fenomeni artistici e culturali di questo complesso territorio, fornendo diverse chiavi per comprenderli e ragionamenti utili per le future indagini scientifiche
Copper-64 Dichloride as Theranostic Agent for Glioblastoma Multiforme: A Preclinical Study
Glioblastoma multiforme (GBM) is the most common primary malignant brain tumor in adults with a median survival time less than one year. To date, there are only a limited number of effective agents available for GBM therapy and this does not seem to add much survival advantage over the conventional approach based on surgery and radiotherapy. Therefore, the development of novel therapeutic approaches to GBM is essential and those based on radionuclide therapy could be of significant clinical impact. Experimental evidence has clearly demonstrated that cancer cells have a particularly high fractional content of copper inside the nucleus compared to normal cells. This behavior can be conveniently exploited both for diagnosis and for delivering therapeutic payloads (theranostic) of the radionuclide copper-64 into the nucleus of cancerous cells by intravenous administration of its simplest chemical form as dichloride salt [64Cu]CuCl To evaluate the potential theranostic role of [64Cu]CuClin GBM, the present work reports results from a preclinical study carried out in a xenografted GBM tumor mouse model. Biodistribution data of this new agent were collected using a small-animal PET tomograph. Subsequently, groups of tumor implanted nude mice were treated with [64Cu]CuClto simulate single-and multiple-dose therapy protocols, and results were analyzed to estimate therapeutic efficacy
Human T-Cell Leukemia Virus Type 1 Oncogenesis between Active Expression and Latency: A Possible Source for the Development of Therapeutic Targets
: The human T-cell leukemia virus type 1 (HTLV-1) is the only known human oncogenic retrovirus. HTLV-1 can cause a type of cancer called adult T-cell leukemia/lymphoma (ATL). The virus is transmitted through the body fluids of infected individuals, primarily breast milk, blood, and semen. At least 5-10 million people in the world are infected with HTLV-1. In addition to ATL, HTLV-1 infection can also cause HTLV-I-associated myelopathy (HAM/TSP). ATL is characterized by a low viral expression and poor prognosis. The oncogenic mechanism triggered by HTLV-1 is extremely complex and the molecular pathways are not fully understood. However, viral regulatory proteins Tax and HTLV-1 bZIP factor (HBZ) have been shown to play key roles in the transformation of HTLV-1-infected T cells. Moreover, several studies have shown that the final fate of HTLV-1-infected transformed Tcell clones is the result of a complex interplay of HTLV-1 oncogenic protein expression with cellular transcription factors that subvert the cell cycle and disrupt regulated cell death, thereby exerting their transforming effects. This review provides updated information on the mechanisms underlying the transforming action of HTLV-1 and highlights potential therapeutic targets to combat ATL
Effects of usnic acid to prevent infections by creating a protective barrier in an in vitro study
Nasal sprays are medical devices useful for preventing infection and the subsequent spread of airborne pathogens. The effectiveness of these devices depends on the activity of chosen compounds which can create a physical barrier against viral uptake as well as incorporate different substances with antiviral activity. Among antiviral compounds, UA, a dibenzofuran derived from lichens, has the mechanical ability to modify its structure by creating a branch capable of forming a protective barrier. The mechanical ability of UA to protect cells from virus infection was investigated by analyzing the branching capacity of UA, and then the protection mechanism in an in vitro model was also studied. As expected, UA at 37 °C was able to create a barrier confirming its ramification property. At the same time, UA was able to block the infection of Vero E6 and HNEpC cells by interfering with a biological interaction between cells and viruses as revealed also by the UA quantification. Therefore, UA can block virus activity through a mechanical barrier effect without altering the physiological nasal homeostasis. The findings of this research could be of great relevance in view of the growing alarm regarding the spread of airborne viral diseases
Metabolic risk factor profile associated with use of second generation antipsychotics: a cross-sectional study in a community mental health centre
open9noBACKGROUND: Second generation antipsychotics (SGA) have demonstrated several advantages over first generation antipsychotics (FGA) in terms of positive, negative, cognitive, and affective symptoms and a lower propensity for extrapyramidal side effects. Despite these undeniable advantages, SGA have been associated with causing and exacerbating metabolic disorders, such as obesity, diabetes, and hyperlipidemia. This cross sectional study aimed to evaluate the metabolic risk factor profile associated with use of SGAs in comparison with non -treated control patients. METHODS: The study was carried out at a Community Mental Health Centre (CMHC) in Bologna. The study subjects were outpatients with serious mental disorders treated with SGA (clozapine, olanzapine, risperidone, quetiapine). A sample of adult men and women suffering from idiopathic hyperhydrosis, without psychiatric history or antipsychotic treatment, were randomly selected from outpatients of the Department of Neurology in Bologna as a reference group. We investigated differences among the treatment and reference groups for glycaemia, cholesterolaemia and triglyceridaemia levels. RESULTS: The study sample was composed of 76 patients, 38 males and 38 females. The reference group was composed of 36 subjects, 19 females and 17 males. All patients treated with SGAs had higher mean glycaemia and triglyceridaemia and a significantly higher risk of receiving a diagnosis of hyperglycaemia and hypertriglyceridaemia than the reference group. We did not find any differences in mean glycaemia or mean triglyceridaemia levels among treatment groups. Patients with clozapine had a significantly higher mean BMI value and rate of obesity than patients treated with other SGAs. CONCLUSION: The rate of obesity and metabolic disorders observed in this study were higher than the prevalence in the control group and similar to that previously reported in psychiatric samples; these findings imply per se that more attention should be paid to the metabolic condition of psychiatric patients. In line with the International Consensus Conferences we recommend that monitoring of weight, fasting plasma glucose, cholesterol and triglyceride levels be obtained in routine clinical practice with all antipsychoticsopenTarricone I.; Casoria M.; Ferrari Gozzi B.; Grieco D.; Menchetti M.; Serretti A.; Ujkaj M.; Pastorelli F.; Berardi D.Tarricone I.; Casoria M.; Ferrari Gozzi B.; Grieco D.; Menchetti M.; Serretti A.; Ujkaj M.; Pastorelli F.; Berardi D
Accelerated Axonal Loss Following Acute CNS Demyelination in Mice Lacking Protein Tyrosine Phosphatase Receptor Type Z
Protein tyrosine phosphatase receptor type Z (Ptprz) is widely expressed in the mammalian central nervous system and has been suggested to regulate oligodendrocyte survival and differentiation. We investigated the role of Ptprz in oligodendrocyte remyelination after acute, toxin-induced demyelination in Ptprz null mice. We found neither obvious impairment in the recruitment of oligodendrocyte precursor cells, astrocytes, or reactive microglia/macrophage to lesions nor a failure for oligodendrocyte precursor cells to differentiate and remyelinate axons at the lesions. However, we observed an unexpected increase in the number of dystrophic axons by 3 days after demyelination, followed by prominent Wallerian degeneration by 21 days in the Ptprz-deficient mice. Moreover, quantitative gait analysis revealed a deficit of locomotor behavior in the mutant mice, suggesting increased vulnerability to axonal injury. We propose that Ptprz is necessary to maintain central nervous system axonal integrity in a demyelinating environment and may be an important target of axonal protection in inflammatory demyelinating diseases, such as multiple sclerosis and periventricular leukomalacia. (Am J Pathol 2012, 181:1518-1523; http://dx.doi.org/10.1016/j.ajpath.2012.07.011)UK Multiple Sclerosis SocietyMultiple Sclerosis International FederationUniv Cambridge, Dept Vet Med, Cambridge CB3 0ES, EnglandUniv Cambridge, Wellcome Trust & MRC Cambridge Stem Cell Inst, Cambridge CB3 0ES, EnglandUniversidade Federal de São Paulo, Dept Biosci, Santos, BrazilMerck Serono Int, Geneva Res Ctr, Geneva, SwitzerlandUniversidade Federal de São Paulo, Dept Biosci, Santos, BrazilWeb of Scienc
Differences Between Plasma and Cerebrospinal Fluid p-tau181 and p-tau231 in Early Alzheimer's Disease
Plasma phosphorylated tau species have been recently proposed as peripheral markers of Alzheimer's disease (AD) pathology. In this cross-sectional study including 91 subjects, plasma and cerebrospinal fluid (CSF) p-tau181 and p-tau231 levels were elevated in the early symptomatic stages of AD. Plasma p-tau231 and p-tau181 were strongly related to CSF phosphorylated tau, total tau and amyloid and exhibited a high accuracy-close to CSF p-tau231 and p-tau181-to identify AD already in the early stage of the disease. The findings might support the use as diagnostic and prognostic peripheral AD biomarkers in both research and clinical settings
A Highly-Conserved Residue of the HIV-1-gp120 Inner Domain is Important for ADCC Responses Mediated by Anti-Cluster A Antibodies
Previous studies have shown that sera from HIV-1-infected individuals contain antibodies able to mediate antibody-dependent cellular cytotoxicity (ADCC). These antibodies preferentially recognize envelope glycoprotein (Env) epitopes induced upon CD4 binding. Here, we show that a highly conserved tryptophan at position 69 of the gp120 inner domain is important for ADCC mediated by anti-cluster A antibodies and sera from HIV-1-infected individuals
Novel Medicinal Mushroom Blend as a Promising Supplement in Integrative Oncology: A Multi-Tiered Study using 4T1 Triple-Negative Mouse Breast Cancer Model
Abstract: Although medicinal mushroomextracts have been proposed as promising anti-cancer agents,
their precise impacts on metastatic breast cancer are still to be clarified. For this purpose, the present
study exploited the eect of a novel medicinal mushroom blend, namely Micotherapy U-care, in a 4T1
triple-negative mouse breast cancer model. Mice were orally administered with Micotherapy U-care,
consisting of a mixture of Agaricus blazei, Ophiocordyceps sinensis, Ganoderma lucidum, Grifola frondosa,
and Lentinula edodes. The syngeneic tumor-bearing mice were generated by injecting 4T1 cells in
both supplemented and non-supplemented mice. After sacrifice 35 days later, specific endpoints and
pathological outcomes of the murine pulmonary tissue were evaluated. (i) Histopathological and
ultrastructural analysis and (ii) immunohistochemical assessment of TGF-ß1, IL-6 and NOS2, COX2,
SOD1 as markers of inflammation and oxidative stress were performed. The QoL was comparatively
evaluated. Micotherapy U-care supplementation, starting before 4T1 injection and lasting until the
end of the experiment, dramatically reduced the pulmonary metastases density, also triggering a
decrease of fibrotic response, and reducing IL-6, NOS, and COX2 expression. SOD1 and TGF-ß1
results were also discussed. These findings support the valuable potential of Micotherapy U-care as
adjuvant therapy in the critical management of triple-negative breast cancer
- …