1.Tissue-Material Integration and Biostimulation Study of Collagen Acellular Matrices
Lindsey Alejandra QUINTERO SIERRA ; Alice BUSATO ; Nicola ZINGARETTI ; Anita CONTI ; Reetuparna BISWAS ; Maurizio GOVERNA ; Enrico VIGATO ; Pier Camillo PARODI ; Paolo BERNARDI ; Andrea SBARBATI ; Giamaica CONTI
Tissue Engineering and Regenerative Medicine 2022;19(3):477-490
BACKGROUND:
Breast reconstruction after mastectomy using silicone implants is a surgical procedure that occasionally leads to capsular contracture formation. This phenomenon constitutes an important and persistent cause of morbidity, and no successful therapies are available to date. Recently, the use of acellular membranes as a protective material for silicone prostheses has been gaining attention due to their ability to prevent this adverse outcome. For this reason, the evaluation of the tissue-material integration and the induced biostimulation by acellular membranes results crucial. Evaluation of in vivo tissue integration and biostimulation induced by three different natural acellular collagen membranes.
METHODS:
Scanning electron microscopy was performed to analyse the membrane porosity and cells-biomaterial interaction in vitro, both in dry and wet conditions. Adipose-derived stem cells were cultured in the presence of membranes, and the colonisation capacity and differentiation potential of cells were assessed. In vivo tests and ex vivo analyses have been performed to evaluate dermal integration, absorption degree and biostimulation induced by the evaluated membrane.
RESULTS:
Analysis performed in vitro on the three different acellular dermal matrices evidenced that porosity and the morphological structure of membranes influence the liquid swelling ratio, affecting the cell mobility and the colonisation capacity. Moreover, the evaluated membranes influenced in different manner the adipose derived stem cells differentiation and their survival. In vivo investigation indicated that the absorption degree and the fluid accumulation surrounding the implant were membrane-dependent. Finally, ex vivo analysis confirmed the membrane-dependent behavior revealing different degree of tissue integration and biostimulation, such as adipogenic stimulation.
CONCLUSION
The physico-chemical characteristics of the membranes play a key role in the biostimulation of the cellular environment inducing the development of well-organized adipose tissue.
2.Characteristics and patterns of care of endometrial cancer before and during COVID-19 pandemic
Giorgio BOGANI ; Giovanni SCAMBIA ; Chiara CIMMINO ; Francesco FANFANI ; Barbara COSTANTINI ; Matteo LOVERRO ; Gabriella FERRANDINA ; Fabio LANDONI ; Luca BAZZURINI ; Tommaso GRASSI ; Domenico VITOBELLO ; Gabriele SIESTO ; Anna Myriam PERRONE ; Vanna ZANAGNOLO ; Pierandrea DE IACO ; Francesco MULTINU ; Fabio GHEZZI ; Jvan CASARIN ; Roberto BERRETTA ; Vito A CAPOZZI ; Errico ZUPI ; Gabriele CENTINI ; Antonio PELLEGRINO ; Silvia CORSO ; Guido STEVENAZZI ; Serena MONTOLI ; Anna Chiara BOSCHI ; Giuseppe COMERCI ; Pantaleo GRECO ; Ruby MARTINELLO ; Francesco SOPRACORDEVOLE ; Giorgio GIORDA ; Tommaso SIMONCINI ; Marta CARETTO ; Enrico SARTORI ; Federico FERRARI ; Antonio CIANCI ; Giuseppe SARPIETRO ; Maria Grazia MATARAZZO ; Fulvio ZULLO ; Giuseppe BIFULCO ; Michele MORELLI ; Annamaria FERRERO ; Nicoletta BIGLIA ; Fabio BARRA ; Simone FERRERO ; Umberto Leone Roberti MAGGIORE ; Stefano CIANCI ; Vito CHIANTERA ; Alfredo ERCOLI ; Giulio SOZZI ; Angela MARTOCCIA ; Sergio SCHETTINI ; Teresa ORLANDO ; Francesco G CANNONE ; Giuseppe ETTORE ; Andrea PUPPO ; Martina BORGHESE ; Canio MARTINELLI ; Ludovico MUZII ; Violante Di DONATO ; Lorenza DRIUL ; Stefano RESTAINO ; Alice BERGAMINI ; Giorgio CANDOTTI ; Luca BOCCIOLONE ; Francesco PLOTTI ; Roberto ANGIOLI ; Giulia MANTOVANI ; Marcello CECCARONI ; Chiara CASSANI ; Mattia DOMINONI ; Laura GIAMBANCO ; Silvia AMODEO ; Livio LEO ; Raphael THOMASSET ; Diego RAIMONDO ; Renato SERACCHIOLI ; Mario MALZONI ; Franco GORLERO ; Martina Di LUCA ; Enrico BUSATO ; Sami KILZIE ; Andrea DELL'ACQUA ; Giovanna SCARFONE ; Paolo VERCELLINI ; Marco PETRILLO ; Salvatore DESSOLE ; Giampiero CAPOBIANCO ; Andrea CIAVATTINI ; Giovanni Delli CARPINI
Journal of Gynecologic Oncology 2022;33(1):e10-
Objective:
Coronavirus disease 2019 (COVID-19) outbreak has correlated with the disruption of screening activities and diagnostic assessments. Endometrial cancer (EC) is one of the most common gynecological malignancies and it is often detected at an early stage, because it frequently produces symptoms. Here, we aim to investigate the impact of COVID-19 outbreak on patterns of presentation and treatment of EC patients.
Methods:
This is a retrospective study involving 54 centers in Italy. We evaluated patterns of presentation and treatment of EC patients before (period 1: March 1, 2019 to February 29, 2020) and during (period 2: April 1, 2020 to March 31, 2021) the COVID-19 outbreak.
Results:
Medical records of 5,164 EC patients have been retrieved: 2,718 and 2,446 women treated in period 1 and period 2, respectively. Surgery was the mainstay of treatment in both periods (p=0.356). Nodal assessment was omitted in 689 (27.3%) and 484 (21.2%) patients treated in period 1 and 2, respectively (p<0.001). While, the prevalence of patients undergoing sentinel node mapping (with or without backup lymphadenectomy) has increased during the COVID-19 pandemic (46.7% in period 1 vs. 52.8% in period 2; p<0.001). Overall, 1,280 (50.4%) and 1,021 (44.7%) patients had no adjuvant therapy in period 1 and 2, respectively (p<0.001). Adjuvant therapy use has increased during COVID-19 pandemic (p<0.001).
Conclusion
Our data suggest that the COVID-19 pandemic had a significant impact on the characteristics and patterns of care of EC patients. These findings highlight the need to implement healthcare services during the pandemic.