Hybrid board game: Possibilities and implications from an interaction design perspective

In a context of continuous miniaturization and technological advancement, the combination of digital and analog media is becoming an element of increasing importance. The so called “IoT revolution” represents one of the major technological breakthroughs of our times that re-framed the way we interact with our surroundings, now becoming data-rich and sensor-infused environments. The boardgames field, however, appears untouched by this revolution, even though an object- based system such as a tabletop offers an interesting scenario for smart interactions. The research in the field and the development of a prototype lead to a series of ground rules, best practices and problematics related to operations of hybridisation of digital means in an analog play experience

Prevention of relapses in patients previously treated with oral isotretinoin for severe acne. Results of a multicentre, randomized, retrospective, sponsor-free study

Introduction: After a systemic treatment with oral isotretinoin, acne therapy must be continued with topical products in order to avoid possible relapses. The aim of this study was to assess whether a topical retinoid is an effective choice in the prevention of relapses. Methods: Patients who were successfully treated with oral isotretinoin for severe acne, at the end of the therapy were randomized into two groups: the first one was treated with a topical retinoid (0.05% tretinoin or 0.05% isotretinoin or 0.1 % adapalene, 1 application/day for 6-8 months); the second group was not treated (only detergents and moisturizers were allowed). Follow up was >6 months. Results: At the end of the study, 2/37 patients (5.4%) treated with topical retinoids developed a relapse; in the group of patients who were not treated, 7/31 patients (22.6%) developed a relapse (p< 0.05). Conclusions: On the basis of the results of this study, topical retinoids are helpful in the prevention of relapses of acne in patients previously treated with oral isotretinoin

One ulcer and two nodules on the foot : a quiz

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More than one shade of pink as a marker of early amelanotic/hypomelanotic melanoma

Amelanotic/hypomelanotic melanoma (AHM) may be difficult to diagnose because of a lack of pigmentation. To evaluate whether dermoscopy can be useful for the diagnosis of early AHM, 133 digital dermoscopic images of lesions histopathologically diagnosed as amelanotic/hypomelanotic superficial spreading melanoma with ≤1 mm thickness (AHSSMs) (n = 27), amelanotic/hypomelanotic non-melanocytic lesions (AHNMLs) (e.g., seborrhoeic keratosis and basal cell carcinoma) (n = 79), and amelanotic/hypomelanotic benign melanocytic lesions (AHBMLs) (e.g., compound and dermal nevi) (n = 27), were dermoscopically assessed by three blinded dermatologists. Using multivariate analysis, we found a significantly increased risk of diagnosing AHSSM versus AHNML and AHBML when the lesion was characterized by the presence of more than one shade of pink (odds ratio [OR] 37.11), irregular dots/globules (OR 23.73), asymmetric pigmentation (OR 8.85), and structureless pattern (OR 7.33). In conclusion, dermoscopy may improve early AHM detection, discriminating AHSSM from amelanotic/hypomelanotic non melanoma lesion

Automated Large-Scale Production of Paclitaxel Loaded Mesenchymal Stromal Cells for Cell Therapy Applications

Mesenchymal stromal cells (MSCs) prepared as advanced therapies medicinal products (ATMPs) have been widely used for the treatment of different diseases. The latest developments concern the possibility to use MSCs as carrier of molecules, including chemotherapeutic drugs. Taking advantage of their intrinsic homing feature, MSCs may improve drugs localization in the disease area. However, for cell therapy applications, a significant number of MSCs loaded with the drug is required. We here investigate the possibility to produce a large amount of Good Manufacturing Practice (GMP)-compliant MSCs loaded with the chemotherapeutic drug Paclitaxel (MSCs-PTX), using a closed bioreactor system. Cells were obtained starting from 13 adipose tissue lipoaspirates. All samples were characterized in terms of number/viability, morphology, growth kinetics, and immunophenotype. The ability of MSCs to internalize PTX as well as the antiproliferative activity of the MSCs-PTX in vitro was also assessed. The results demonstrate that our approach allows a large scale expansion of cells within a week; the MSCs-PTX, despite a different morphology from MSCs, displayed the typical features of MSCs in terms of viability, adhesion capacity, and phenotype. In addition, MSCs showed the ability to internalize PTX and finally to kill cancer cells, inhibiting the proliferation of tumor lines in vitro. In summary our results demonstrate for the first time that it is possible to obtain, in a short time, large amounts of MSCs loaded with PTX to be used in clinical trials for the treatment of patients with oncological diseases

Pigmented nodular melanoma: the predictive value of dermoscopic features using multivariate analysis

BACKGROUND: Nodular melanoma (NM), representing 10-30% of all melanomas, plays a major role in global mortality related to melanoma. Nonetheless, the literature on dermoscopy of NM is scanty. OBJECTIVES: To assess odds ratios (ORs) to quantify dermoscopic features of pigmented NM vs. pigmented superficial spreading melanoma (SSM), and pigmented nodular nonmelanocytic and benign melanocytic lesions. METHODS: To assess the presence or absence of global patterns and dermoscopic criteria, digitized images of 457 pigmented skin lesions from patients with a histopathological diagnosis of NM (n = 75), SSM (n = 93), and nodular nonmelanocytic and benign melanocytic lesions (n = 289; namely, 39 basal cell carcinomas, 85 seborrhoeic keratoses, 81 blue naevi, and 84 compound/dermal naevi) were retrospectively collected and blindly evaluated by three observers. RESULTS: Multivariate analysis showed that ulceration (OR 4.07), homogeneous disorganized pattern (OR 10.76), and homogeneous blue pigmented structureless areas (OR 2.37) were significantly independent prognostic factors for NM vs. SSM. Multivariate analysis of dermoscopic features of NM vs. nonmelanocytic and benign melanocytic lesions showed that the positive correlating features leading to a significantly increased risk of NM were asymmetric pigmentation (OR 6.70), blue-black pigmented areas (OR 7.15), homogeneous disorganized pattern (OR 9.62), a combination of polymorphous vessels and milky-red globules/areas (OR 23.65), and polymorphous vessels combined with homogeneous red areas (OR 33.88). CONCLUSIONS: Dermoscopy may be helpful in improving the recognition of pigmented NM by revealing asymmetric pigmentation, blue-black pigmented areas, homogeneous disorganized pattern and abnormal vascular structures, including polymorphous vessels, milky-red globules/areas and homogeneous red areas

Mesenchymal Stromal Cells Primed with Paclitaxel Provide a New Approach for Cancer Therapy

BACKGROUND: Mesenchymal stromal cells may represent an ideal candidate to deliver anti-cancer drugs. In a previous study, we demonstrated that exposure of mouse bone marrow derived stromal cells to Doxorubicin led them to acquire anti-proliferative potential towards co-cultured haematopoietic stem cells (HSCs). We thus hypothesized whether freshly isolated human bone marrow Mesenchymal stem cells (hMSCs) and mature murine stromal cells (SR4987 line) primed in vitro with anti-cancer drugs and then localized near cancer cells, could inhibit proliferation. METHODS AND PRINCIPAL FINDINGS: Paclitaxel (PTX) was used to prime culture of hMSCs and SR4987. Incorporation of PTX into hMSCs was studied by using FICT-labelled-PTX and analyzed by FACS and confocal microscopy. Release of PTX in culture medium by PTX primed hMSCs (hMSCsPTX) was investigated by HPLC. Culture of Endothelial cells (ECs) and aorta ring assay were used to test the anti-angiogenic activity of hMSCsPTX and PTX primed SR4987(SR4987PTX), while anti-tumor activity was tested in vitro on the proliferation of different tumor cell lines and in vivo by co-transplanting hMSCsPTX and SR4987PTX with cancer cells in mice. Nevertheless, despite a loss of cells due to chemo-induced apoptosis, both hMSCs and SR4987 were able to rapidly incorporate PTX and could slowly release PTX in the culture medium in a time dependent manner. PTX primed cells acquired a potent anti-tumor and anti-angiogenic activity in vitro that was dose dependent, and demonstrable by using their conditioned medium or by co-culture assay. Finally, hMSCsPTX and SR4987PTX co-injected with human cancer cells (DU145 and U87MG) and mouse melanoma cells (B16) in immunodeficient and in syngenic mice significantly delayed tumor takes and reduced tumor growth. CONCLUSIONS: These data demonstrate, for the first time, that without any genetic manipulation, mesenchymal stromal cells can uptake and subsequently slowly release PTX. This may lead to potential new tools to increase efficacy of cancer therapy

Dermatite psoriasiforme indotta da atenololo

We report the case of a patient who presented a psoriasiform dermatitis after 8 months of atenolol therapy. Regression of the lesions was obtained after suspension of therapy. To our knowledge, few reports of psoriasiform dermatitis induced by atenolol are present in the literature. The Authors briefly discuss the pathogenesis of this drug induced disease

Simultaneous occurrence of multiple trichoblastomas and steatocystoma multiplex

We present a 55-year old man who, since age 21, progressively developed multiple papules and nodules on the face and upper trunk. Light microscopic examination of some of the neoplasms showed trichoblastomas, while others had histopathological features of trichoepithelioma and steatocystoma. Simultaneous occurrence of multiple trichoblastomas/trichoepitheliomas and steatocystomas, not reported previously, could represent multiple neoplasms involving differentiation toward different components of the folliculosebaceous unit