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Authors = Stefano Semplici

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17 pages, 320 KiB  
Article
Ethics in Emergency Times: The Case of COVID-19
by Stefano Semplici
Philosophies 2022, 7(3), 70; https://doi.org/10.3390/philosophies7030070 - 20 Jun 2022
Cited by 5 | Viewed by 3564
Abstract
A disaster is an occurrence disrupting a community’s normal functioning and existence. The disruption may render it impossible to comply with principles and to respect, protect, and fulfill rights as it happens in ordinary times; it may induce an overwhelming shortage of resources [...] Read more.
A disaster is an occurrence disrupting a community’s normal functioning and existence. The disruption may render it impossible to comply with principles and to respect, protect, and fulfill rights as it happens in ordinary times; it may induce an overwhelming shortage of resources and make tragic decisions unavoidable. From its very beginning, the COVID-19 pandemic evoked the scenario of disaster medicine, where triage is likely to imply not simply postponing a treatment but letting someone die. However, it is not only the health care system that faces disruption risks. Lockdown measures and other restrictions were imposed to curb the pandemic, impinging upon individual freedom as well as economic activities. The proposal of mandatory vaccination implied a suspension of the principle of autonomy, which is a fundamental pillar of modern medicine. Out of the ordinary balancing efforts may be required, and two questions arise. Do such exceptional circumstances suggest reconsidering the criteria to apply, especially when essential, life-saving treatments are at stake? Who should decide? Science offers the premises to build on, but the last word does not belong to science. It remains the province of ethics and politics. Full article
14 pages, 2876 KiB  
Article
Expression of Matrix Metalloproteinases and Their Inhibitors in Endometrium: High Levels in Endometriotic Lesions
by Alice Luddi, Camilla Marrocco, Laura Governini, Bianca Semplici, Valentina Pavone, Stefano Luisi, Felice Petraglia and Paola Piomboni
Int. J. Mol. Sci. 2020, 21(8), 2840; https://doi.org/10.3390/ijms21082840 - 18 Apr 2020
Cited by 34 | Viewed by 3728
Abstract
Endometriosis is a condition defined as presence of endometrium outside of the uterine cavity. These endometrial cells are able to attach and invade the peritoneum or ovary, thus forming respectively the deep infiltrating endometriosis (DIE) and the ovarian endometrioma (OMA), the ectopic lesions [...] Read more.
Endometriosis is a condition defined as presence of endometrium outside of the uterine cavity. These endometrial cells are able to attach and invade the peritoneum or ovary, thus forming respectively the deep infiltrating endometriosis (DIE) and the ovarian endometrioma (OMA), the ectopic lesions feature of this pathology. Endometriotic cells display high invasiveness and share some features of malignancy with cancer cells. Indeed, the tissue remodeling underlining lesion formation is achieved by matrix metalloproteinases (MMPs) and their inhibitors. Therefore, these molecules are believed to play a key role in development and pathogenesis of endometriosis. This study investigated the molecular profile of metalloproteinases and their inhibitors in healthy (n = 15) and eutopic endometrium (n = 19) in OMA (n = 10) and DIE (n = 9); moreover, we firstly validated the most reliable housekeeping genes allowing accurate gene expression analysis in these tissues. Gene expression, Western blot, and immunofluorescence analysis of MMP2, MMP3, and MMP10 and their tissue inhibitors TIMP1 and TIMP2 demonstrated that these enzymes are finely tuned in these tissues. In OMA lesions, all the investigated MMPs and their inhibitors were significantly increased, while DIE expressed high levels of MMP3. Finally, in vitro TNFα treatment induced a significant upregulation of MMP3, MMP10, and TIMP2 in both healthy and eutopic endometrial stromal cells. This study, shedding light on MMP and TIMP expression in endometriosis, confirms that these molecules are altered both in eutopic endometrium and endometriotic lesions. Although further studies are needed, these data may help in understanding the molecular mechanisms involved in the extracellular matrix remodeling, a crucial process for the endometrial physiology. Full article
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