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Cutting-edge hybrid dressings: combining silk medical textiles and decellulariz...

Sousa, Teresa; Vale, Inês; Rosadas, Marta; Silva, Inês V.; Ribeiro, Viviana P.; Oliveira, Ana L.

Aim: Burns affect 11 million people globally each year, with 180,000 fatalities [1]. This study investigates a multilayer burn dressing combining silk fibroin (SF) fabric with highly- preserved decellularized porcine small intestine (dPSI) to support tissue regeneration and wound integration [2]. A silk sericin (SS) hydrogel is included as interface for structural integrity and anti-inflammatory benefits, enhan...


Detergent-free supercritical CO2–assisted protocol for the production of sustai...

Ho, Chou I.; Rodrigues, Francisco A. P.; Reis, Mariana S.; Ribeiro, Viviana P.; Oliveira, Ana Leite; Costa, João B.

Introduction & Objectives Meniscal injuries occur approximately 66 to 70 per 100,000 individuals annually (Fig. 1), potentially leading to the development of osteoarthritis (OA) or other degenerative cartilage disease in 10 to 20 years. One of the conventional treatments is meniscal allograft transplantation. However, its limitations constrain its comprehensive application in the healthcare system.


Development of a decellularized extracelular matrix from porcine aorta for hear...

Reis, Mariana S.; Rosadas, Marta; Ho, Chou I.; Sousa, Teresa; Pazmino, Carlos; Costa, João; Vervenne, Thibault; Oliveira, Ana L.; Ribeiro, Viviana P.

Cardiovascular diseases are the leading cause of adult mortality worldwide, according to the World Health Organization [1]. An important surgical approach for treating diseased aortic valves is the Ross procedure, in whic the affected aortic valve is replaced with an autograft from the patient’s own pulmonary valve.


Biohybrid dressings: integrating silk fibroin textiles with decellularized biol...

Sousa, Teresa; Vale, Inês; Rosadas, Marta; Silva, Inês V.; Ribeiro, Viviana P.; Oliveira, Ana L.

Burns affect 11 million people globally each year with 180,000 associated fatalities. This study proposes a multilayer hybrid dressing combining a silk fibroin (SF) textile with decellularized porcine small intestine (dPSI) capable of simultaneously provide wound protection and tissue regeneration. A silk sericin (SS) hydrogel was embedded into the decellularized tissue ensuring the integration with the textile...


Development of a decellularized extracelular matrix from porcine aorta for hear...

Reis, Mariana S.; Rosadas, Marta; Ho, Chou I.; Costa, João; Vervenne, Thibault; Oliveira, Ana L.; Ribeiro, Viviana P.; Mignon, Arn

Cardiovascular diseases are the leading cause of adult mortality worldwide, according to the WHO [1]. An important surgical approach for treating diseased aortic valves is the Ross procedure, in which the affected aortic valve is replaced with an autograft from the patient’s own pulmonary valve. The main concern about this procedure is linked to wall dilatation, which can lead to valve leakage and reoperation. ...


Exploring rabbit skin as a novel decellularized dermal substitute for burn woun...

Rosadas, Marta; Sousa, Teresa; Silva, Inês V.; Sousa, Alda; Ribeiro, Viviana P.; Oliveira, Ana L.

Aim: Burn wounds represent a significant medical challenge. Autografts remain the standard treatment, however, are unsuitable for deep or extensive burns(1). Decellularized skin xenografts offer a viable alternative, having significantly reduced immunogenicity, still there is currently no skin-derived decellularized xenografic matrix due to its low resemblance to human skin (2)(3). This study proposes decellula...


Advancing diabetes treatment: from human beta cell technology to bioartificial ...

Sá, Joana; Sá, Simone; Leménager, Hélène; Costa, Raquel; Onteniente, Brigitte; Soares, Raquel; Ribeiro, Viviana P.; Oliveira, Ana L.

In 2021, approximately 537 million people worldwide, primarily in low- and middle-income countries, were affected by diabetes, leading to approximately 6.7 million deaths annually or severe secondary complications including life-threatening hyperglycemia. For nearly 50 years, current therapeutic approaches include full pancreas transplantation and isolated pancreatic islets, more recently, cell therapy such as ...


Supercritical CO2-assisted decellularization: advanced pancreatic tissue platfo...

Sá, Simone C.; Pazmino, Carlos; Sá, Joana; Amorim, Sara; Ribeiro, Viviana P.; Costa, Raquel; Oliveira, Ana L.

Introduction: Decellularization is a procedure that aims to remove the cellular and antigenic material of a tissue while preserving its extracellular matrix (ECM) and biological properties. Decellularized ECM offers a natural microenvironment with significant potential for use in cell-based therapies and tissue regeneration [1]. Different protocols have been employed to decellularize tissues and organs. However...


Biohybrid solutions for burn care: merging silk medical textiles with decellula...

Sousa, Teresa; Vale, Inês; Rosadas, Marta; Silva, Inês V.; Ribeiro, Viviana P.; Oliveira, Ana L.


Is decellularized rabbit dermis a viable option for skin wound healing and rege...

Rosadas, Marta; Sousa, Teresa; Sousa, Alda; Ribeiro, Viviana P.; Oliveira, Ana L.

Burn wounds remain a significant challenge in medical care, requiring effective wound coverage to restore the skin barrier and promote healing or support skin reconstruction. The use of autologous grafts as substitutes is still the standard treatment, however, it is not suitable for deep and extensive burns (1). Decellularized skin allografts and xenografts have emerged as suitable options, using decellularizat...


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