Search results for "Adhesives"
showing 10 items of 52 documents
Functional Mechanics of a Pectin-Based Pleural Sealant after Lung Injury.
2017
Pleural injury and associated air leaks are a major influence on patient morbidity and healthcare costs after lung surgery. Pectin, a plant-derived heteropolysaccharide, has recently demonstrated potential as an adhesive binding to the glycocalyx of visceral mesothelium. Since bioadhesion is a process likely involving the interpenetration of the pectin-based polymer with the glycocalyx, we predicted that the pectin-based polymer may also be an effective sealant for pleural injury. To explore the potential role of an equal (weight%) mixture of high-methoxyl pectin and carboxymethylcellulose as a pleural sealant, we compared the yield strength of the pectin-based polymer to commonly available…
Recombinant mussel protein Pvfp-5β: A potential tissue bioadhesive
2019
During their lifecycle, many marine organisms rely on natural adhesives to attach to wet surfaces for movement and self-defence in aqueous tidal environments. Adhesive proteins from mussels are biocompatible and elicit only minimal immune responses in humans. Therefore these proteins have received increased attention for their potential applications in medicine, biomaterials and biotechnology. The Asian green mussel Perna viridis secretes several byssal plaque proteins, molecules that help anchor the mussel to surfaces. Among these proteins, protein-5β (Pvfp-5β) initiates interactions with the substrate, displacing interfacial water molecules before binding to the surface. Here, we establis…
Current dental adhesives systems. A narrative review.
2012
Adhesive dentistry is based on the development of materials which establish an effective bond with the tooth tissues. In this context, adhesive systems have attracted considerable research interest in recent years. Successful adhesive bonding depends on the chemistry of the adhesive, on appropriate clinical handling of the material as well as on the knowledge of the morphological changes caused on dental tissue by different bonding procedures. This paper outlines the status of contemporary adhesive systems, with particular emphasis on chemical characteristics and mode of interaction of the adhesives with enamel and dentinal tissues. Dental adhesives are used for several clinical application…
Anti-glomerular basement membrane antibody-mediated glomerulonephritis due to glue sniffing
1987
A 16-year-old girl developed rapidly progressive glomerulonephritis and renal failure. The disease was associated with high titres of antiglomerular basement membrane antibodies in serum, linear deposits of immunoglobulin G and diffuse epithelial crescents on renal biopsy. Past history revealed heavy smoking and deliberate sniffing of Pattex glue, a mixture of hydrocarbons which possibly may affect the structure of glomerular basement membrane. After treatment by repeated plasmapheresis and drug immunosuppression autoantibodies disappeared from serum but renal function was not influenced. Renal damage is a potential hazard for glue sniffing adolescents.
ROUTINARY USE OF FIBRIN SEALANTS TO PREVENT PROLONGED AIR LEAK IN THORACIC SURGERT: OUR EXPERIENCE
2019
Introduction: prolonged air leak (PAL) is one of the most common postoperative complications after lung surgery. It is associatred with increased significant morbidity, lower quality of life, longer hospital stay and higher hospital costs. Since its great clinical and economic burden, it is important to establish the feasibility and the effectiveness of the routinary preventive use of a fibrin sealant in order to reduce the incidence of prolonged air leaks. Patients and methods: this is a randomized study on 189 adult patients - 118 men (62,4%) and 71 women (37,6%) aged from 39 to 87 y.o. (mean age 68,3 y.o.) - who underwent lung surgery (lobectomy or bilobectomy) with intraoperatory detect…
Transcatheter embolization of a renal artery pseudoaneurysm after open partial nephrectomy.
2011
Twelve days after an open partial nephrectomy, a 31-year-old man was re-admitted urgently for acute lumbar pain. An emergent helical computed tomography scan with intravenous contrast revealed a 3-cm renal artery pseudoaneurysm at the site of the partial nephrectomy, which was responsible for a large perirenal hematoma. Transarterial hyperselective embolization successfully occluded the pseudoaneurysm with less than 1 mL of N-butyl-2-cyanoacrylate, an embolizing agent less costly than coils. The kidney parenchyma was fully preserved.
Effect of self-etching primer/adhesive and conventional bonding on the shear bond strength in metallic and ceramic brackets
2011
Introduction: Bracket debonding from the tooth surface is a common problem in fixed orthodontics. The aims of the present study were to assess the bond strength and failure sites in two ways of bonding technique, with metallic and ceramic brackets. Material and Methods: One hundred premolars were assigned to 4 groups of 25 each: Group A, metallic brackets/ conventional procedure; Group B, metallic brackets/Transbond XT; Group C, ceramic brackets/conventional procedure; and Group D, ceramic brackets/Transbond XT. Transbond XT composite paste was used for bracket bonding and cured by conventional light-cure device. Specimens were subjected to thermocycling. One week after bonding shearing for…
Does the use of fibrin glue prevent seroma formation after axillary lymphadenectomy for breast cancer? A prospective randomized trial in 159 patients.
2010
Background Seroma formation frequently occurs in patients who have undergone axillary lymphadenectomy. The aim of the study was to evaluate the effect of fibrin glue in the prevention of seroma formation after axillary lymphadenectomy. Materials and Methods Hundred fifty-nine breast cancer patients about to undergo quadrantectomy or mastectomy plus axillary lymphadenectomy were enrolled in the study and randomized into two groups. Fibrin glue spray applied to the axillary fossa plus placement of closed suction drainage were used in 80 patients (group A); placement of closed suction drainage was only used in 79 patients (group B). Results Group A patients showed a slight advantage with regar…
Mucoadhesive Polymeric Films to Enhance Barbaloin Penetration Into Buccal Mucosa: a Novel Approach to Chemoprevention.
2018
Nowadays, chemoprevention by administering natural supplements is considered an attractive strategy to reverse, suppress, or prevent the evolution of premalignant oral lesions. In particular, Barbaloin exhibits anti-proliferative, anti-inflammatory, and anti-cancer properties, and it results useful in multi-therapy with classic chemotherapeutics. Therefore, in this work, mucoadhesive buccal films, as locoregional drug delivery system able to provide a targeted and efficient therapeutic delivery of Barbaloin, are proposed. Thus, Aloin extract-loaded Eudragit (R) RL100 or Eudragit (R) RS100-based buccal films were designed in order to obtain an easily self-administrable formulation capable of…
Intraparenchymal Brain Hemorrhage: "Birdlime" Effect Usefulness.
2018
The authors previously reported the novel transposition techniquefor microvascular decompression (MVD) using a tissue glue-coated collagen sponge (TachoSil Tissue Sealing Sheet; CSLBehring KK, Tokyo, Japan) soaked withfibrin glue (Tisseel 2-Component Fibrin Sealant, Vapor-Heated; Baxter Healthcare,Glendale, California, USA), termed the“birdlime”technique