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Durability of AZ31 magnesium biodegradable alloys polydopamine aided:Part 1

Journal of Magnesium and Alloys 2017年第4期5卷 412-422页

作者： Tullio Monetta Annalisa Acquesta Anna Carangelo nicola donato Francesco Bellucci Department of Chemical Engineering Materials and Industrial ProductionUniversity of Napoli Federico IIPiazzale Tecchio 8080125 NapoliItaly FCA Italy–Avvocato Giovanni Agnelli Plant Via San Paolo 67/7110095 Grugliasco(TO)Italy

The use of magnesium alloys,as a biodegradable medical device,is an interesting challenge for the biomaterials *** rapid degradation and the release of hydrogen,when exposed to biological fluids,are the main drawbacks for clinical *** this work,a coating made of polydopamine(PDOPA),is used as an intermediate layer to decrease the degradation rate of AZ31 magnesium alloy/polymeric coating system,when exposed to Hank’s *** results highlighted:(i)the formation of a thin PDOPA layer,(ii)an increased adhesion in the organic coating/metallic substrate system,(iii)a decrease of two orders of magnitude of the corrosion rate when the PDOPA film is used together with an external organic coating,(iv)the efficacy in the use of PDODA due to the synergistic effect of both,physical and chemical,interactions between the PDOPA layer and the organic coating.

关键词： AZ31 Polydopamine Biodegradable alloy Roughness Electrochemical characterization Medical device

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Pancreatic transplant surgery and stem cell therapy:Finding the balance between therapeutic advances and ethical principles

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World Journal of Stem Cells 2022年第8期14卷 577-586页

作者： Martina Padovano Matteo Scopetti Federico Manetti donato Morena Davide Radaelli Stefano D’Errico nicola Di Fazio Paola Frati Vittorio Fineschi Department of Anatomical HistologicalForensic and Orthopaedic SciencesSapienza University of RomeRome 00185Italy Department of Medical Surgical Sciences and Translational Medicine Sapienza University of RomeRome 00189Italy Department of Medicine Surgery and HealthUniversity of TriesteTrieste 34149Italy

The latest achievements in the field of pancreas transplantation and stem cell therapy require an effort by the scientific community to clarify the ethical implications of pioneering treatments,often characterized by high complexity from a surgical point of view,due to transplantation of multiple organs at the same time or at different times,and from an immunological point of view for stem cell *** fundamental value in the field of organ transplants is,of course,a solidarity principle,namely that of protecting the health and life of people for whom transplantation is a condition of functional recovery,or even of *** nature of this value is that of a concept to which the legal discipline of transplants entrusts its own ethical dignity and for which it has ensured a constitutional recognition in different *** general principle of respect for human life,both of the donor and of the recipient,evokes the need not to put oneself and one’s neighbor in dangerous *** present ethical reflection aims to find a balance between the latest therapeutic advances and several concepts including the idea of the person,the respect due to the dead,the voluntary nature of the donation and the consent to the same,the gratuitousness of the donation,the scientific progress and the development of surgical techniques,and the policies of health promotion.

关键词： Pancreas transplantation Multi-organ transplants Stem cell therapy Ethical principles Donor Recipient

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Breast cancer stem cells: The role of sex steroid receptors

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World Journal of Stem Cells 2019年第9期11卷 594-603页

作者： Pia Giovannelli Marzia Di donato Giovanni Galasso Erika Di Zazzo nicola Medici Antonio Bilancio Antimo Migliaccio Gabriella Castoria Department of Precision Medicine University of Campania "L.Vanvitelli"

Breast cancer(BC)is the most common cancer among women,and current available therapies often have high success ***,BC might acquire drug resistance and sometimes *** knowledge about the most aggressive forms of BC points to the role of specific cells with stem properties located within BC,the so-called“BC stem cells”(BCSCs).The role of BCSCs in cancer formation,growth,invasiveness,therapy resistance and tumor recurrence is becoming increasingly *** growth and metastatic properties of BCSCs are regulated by different pathways,which are only partially *** steroid receptors(SSRs),which are involved in BC etiology and progression,promote BCSC proliferation,dedifferentiation and ***,in the literature,there is incomplete information about their ***,there are contrasting conclusions about the expression and role of the classical BC hormonal biomarkers,such as estrogen receptor alpha(ERα),together with scant,albeit promising information concerning ER beta(ERβ)and androgen receptor(AR)properties that control different transduction pathways in *** this review,we will discuss the role that SRs expressed in BCSCs play to BC progression and recurrence and how these findings have opened new therapeutic possibilities.

关键词： Breast cancer Steroids Sex steroid receptors Cancer stem cells Therapeutic implications

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Nonalcoholic fatty liver disease prevalence in an Italian cohort of patients with hidradenitis suppurativa: A multi-center retrospective analysis

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World Journal of Hepatology 2019年第4期11卷 391-401页

作者： Giovanni Damiani Sebastiano Leone Kristen Fajgenbaum nicola L Bragazzi Alessia Pacifico Rosalynn RZ Conic Paolo DM Pigatto Carlo Maiorana Pierpaolo Poli Emilio Berti Maria C Pace Piergiorgio Malagoli Vincenzo Bettoli Marco Fiore Department of Dermatology Case Western Reserve University Young Dermatologists Italian Network (YDIN) Centro Studi GISED Clinical Dermatology IRCCS Galeazzi Orthopaedic Institute Department of Biomedical Surgical and Dental SciencesUniversity of Milan Division of Infectious Diseases "San Giuseppe Moscati" Hospital University of North Carolina School of Medicine School of Public Health Department of Health Sciences (DISSAL)University of Genoa San Gallicano Dermatological Institute IRCCS Center for Jawbone Atrophies Policlinico Hospital University of Milan School of Dentistry Dipartimento di Fisiopatologia Medico-Chirurgica e dei Trapianti Università degli Studi di Milano Unità Operativa di Dermatologia IRCCS Fondazione Ca’ GrandaOspedale Maggiore Policlinico Department of Women Child and General and Specialized SurgeryUniversity of Campania "Luigi Vanvitelli" Dermatology Unit Azienda Ospedaliera San Donato Milanese Department of Clinical and Experimental Dermatology O.C. of DermatologyAzienda Ospedaliero-Universitaria di Ferrara

BACKGROUND Nonalcoholic fatty liver disease(NAFLD) includes two distinct conditions, with different histologic features and prognosis: non-alcoholic fatty liver(NAFL) and non-alcoholic steatohepatitis(NASH). Furthermore, NASH is the more aggressive necro-inflammatory form, which may accumulate fibrosis and result in End stage liver disease(ESLD). NAFLD is also linked to systemic inflammatory conditions such as psoriasis. NAFLD is currently the most common cause of ESLD in Western countries, becoming a serious public health *** suppurativa(HS) is a systemic inflammatory/autoinflammatory disease of the terminal follicular epithelium of the apocrine gland with a prevalence of 0.05% to 4.10%. Due to its systemic inflammatory behavior several comorbidities were recently associated, however liver ones were scarcely *** To evaluate the prevalence and characteristics of NASH/NAFL in HS *** This retrospective study is a sub-analysis of a larger study carried out in 4 Italian dermatological centers. In this cohort, there were 83 patients: 51 patients with HS only, 20 patients with HS/NAFL and 12 with HS/*** Inflammatory comorbidities were present in 3.9% of HS only patients, 25% of HS/NAFL patients and 58.3% of HS/NASH patients(P < 0.001). Similarly, mean Autoinflammatory Disease Damage Index(ADDI) was significantly higher among patients with HS/NASH(5.3 ± 2.2, P < 0.001) compared to patients with HS/NAFL or HS only(2.8 ± 1.6 and 2.6 ± 1.4 respectively). Furthermore, ADDI correlates with IHS4 in HS, HS/NAFL and HS/NASH. Diabetic patients have higher Hurley score than not diabetic ones. Ultrasound examination was significantly different in the three *** HS patients displayed a high prevalence of NASH/NAFLD and ultrasound examination should be particularly addressed to patients that display high ADDI scores.

关键词： Non-alcoholic steatohepatitis Non-alcoholic fatty liver Nonalcoholic fatty liver disease End stage liver disease Hidradenitis suppurativa

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