39 documents found, page 1 of 4
Review of Piezoelectrical Materials Potentially Useful for Peripheral Nerve Repair
Casal, D; Casimiro, MH; Ferreira, L; Leal, JP; Rodrigues, G; Lopes, R; Lino Moura, D; Gonçalves, L; Lago, J; Pais, D; Santos, PIt has increasingly been recognized that electrical currents play a pivotal role in cell migration and tissue repair, in a process named "galvanotaxis". In this review, we summarize the current evidence supporting the potential benefits of electric stimulation (ES) in the physiology of peripheral nerve repair (PNR). Moreover, we discuss the potential of piezoelectric materials in this context. The use of these ...
An Unexpected Infection in a Venous Leg Ulcer: a Case Report
Veríssimo, M; Guimarães, D; Casal, D; Carvalho, S; Matias, M; Barbosa, R; Bexiga, JProvidencia rettgeri is a Gram-negative bacillus that is most usually seen in urinary tract infections. Skin and soft tissue infections with P rettgeri are rare and there few case reports described in the literature. A 43-yearold woman presented to the emergency department with a leg ulcer of 3 months duration. Microbiological results isolated P rettgeri and Pseudomonas aeruginosa. She underwent surgical debrid...
Retrospective Study of 114 Free Flaps for Head and Neck Oncological Reconstruct...
Silva, A; Caixeirinho, P; Vilares, M; Semedo, C; Martins, M; Zagalo, C; Casal, DIntroduction: The Portuguese experience in microsurgical reconstruction of the head and neck after oncological surgery is scantly described. The primary aim of this study was to characterize the use of microvascular reconstruction after head and neck tumor resection in a Portuguese tertiary oncological centerMaterial and Methods: The authors retrospectively evaluated 114 microvascular free flap procedures perfo...
Anatomical Basis, Histological Findings and Hemodinamics in the Modern Perfusio...
Júnior, E; Bettencourt-Pires, M; Alves, S; Casal, D; Pais, D; Goyri O’neill, J; Vassilenko, VsSeveral modern human cadaveric fixation methods are subject to permanent evaluation. Formaldehyde is the oldest and still the most widely used method of embalming. However, the International Agency for Research on Cancer has proven its high carcinogenic potential and its use was banned, with the recommendation of research for better alternatives in the conservation of corpses. The embalming method of excellenc...
Development of Dl1.72, a Novel Anti-DLL1 Antibody with Anti-Tumor Efficacy agai...
Silva, G; Sales-Dias, J; Casal, D; Alves, S; Domenici, G; Barreto, C; Matos, C; Lemos, A; Matias, A; Kucheryava, K; Ferreira, A; Moita, MR; Braga, SThe Notch-signaling ligand DLL1 has emerged as an important player and promising therapeutic target in breast cancer (BC). DLL1-induced Notch activation promotes tumor cell proliferation, survival, migration, angiogenesis and BC stem cell maintenance. In BC, DLL1 overexpression is associated with poor prognosis, particularly in estrogen receptor-positive (ER+) subtypes. Directed therapy in early and advanced BC...
Development of Dl1.72, a Novel Anti-DLL1 Antibody with Anti-Tumor Efficacy agai...
Silva, G; Sales-Dias, J; Casal, D; Alves, S; Domenici, G; Barreto, C; Matos, C; Lemos, AR; Matias, AT; Kucheryava, K; Ferreira, A; Moita, MR; Braga, SAberrant Notch signaling is implicated in several cancers, including breast cancer. However, the mechanistic details of the specific receptors and function of ligand-mediated Notch signaling that promote breast cancer remains elusive. In our studies we show that DLL1, a Notch signaling ligand, is significantly overexpressed in ERα+ luminal breast cancer. Intriguingly, DLL1 overexpression correlates with poor pr...
BD-2 and BD-3 Increase Skin Flap Survival in a Model of Ischemia and Pseudomona...
Casal, D; Iria, I; Ramalho, JS; Alves, S; Mota-Silva, E; Mascarenhas-Lemos, L; Pontinha, C; Guadalupe-Cabral, M; Ferreira-Silva, J; Ferraz-Oliveira, MThe main aim of this work was to study the usefulness of human β-defensins 2 (BD-2) and 3 (BD-3), which are part of the innate immune system, in the treatment of infected ischemic skin flaps. We investigated the effect of transducing rat ischemic skin flaps with lentiviral vectors encoding human BD-2, BD-3, or both BD-2 and BD-3, to increase flap survival in the context of a P. aeruginosa infection associated w...
The Use of Free Fibula-Flexor Hallucis Longus Osteomuscular Flap for Calcaneal ...
Mata-Ribeiro, L; Casal, D; Amaral Ferreira, J; Sá Costa, D; Lacerda, JINTRODUCTION: Calcaneal osteomyelitis poses a tough challenge for any reconstructive surgeon. The eradication of the infection and the reconstruction of the defect are the main goals of treatment. PRESENTATION OF CASE: We present the case of a 53-year-old male with chronic calcaneal osteomyelitis. The patient was submitted to several bone and soft tissue debridements and twice the application of gentamicin/sulf...
Reconstruction of a Long Defect of the Ulnar Artery and Nerve with an Arteriali...
Casal, D; Pais, D; Mota-Silva, E; Pelliccia, G; Iria, I; Videira, P; Mendes, MM; Goyri-O'Neill, J; Mouzinho, MMThere is evidence that nerve flaps are superior to nerve grafts for bridging long nerve defects. Moreover, arterialized neurovenous flaps (ANVFs) have multiple potential advantages over traditional nerve flaps in this context. This paper describes a case of reconstruction of a long defect of the ulnar artery and nerve with an arterialized neurovenous free flap and presents a literature review on this subject. A...
A Model of Free Tissue Transfer: The Rat Epigastric Free Flap
Casal, D; Pais, D; Iria, I; Mota-Silva, E; Almeida, MA; Alves, S; Pen, C; Farinho, A; Mascarenhas-Lemos, L; Ferreira-Silva, J; Ferraz-Oliveira, MFree tissue transfer has been increasingly used in clinical practice since the 1970s, allowing reconstruction of complex and otherwise untreatable defects resulting from tumor extirpation, trauma, infections, malformations or burns. Free flaps are particularly useful for reconstructing highly complex anatomical regions, like those of the head and neck, the hand, the foot and the perineum. Moreover, basic and tr...