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Biologic mesh

Frank Niemeyer, Lutz Claes, Anita Ignatius, Nicholaus Meyers, Ulrich Simon
Distraction osteogenesis is an effective method for generating large amounts of bone in situ for treating pathologies such as large bone defects or skeletal malformations, for instance leg-length discrepancies. While an optimized distraction procedure might have the potential to reduce the rate of complications significantly, our knowledge of the underlying mechanobiological processes is still insufficient for systematic optimization of treatment parameters such as distraction rate or fixation stiffness. We present a novel numerical model of lateral distraction osteogenesis, based on a mechanically well-controlled in vivo experiment...
2018: PloS One
Lea Ann Matura, Susan Malone, Rosario Jaime-Lara, Barbara Riegel
Fatigue, a commonly reported symptom, is defined as an overwhelming, debilitating, and sustained sense of exhaustion that decreases the ability to function and carry out daily activities. To date, cancer researchers have been in the forefront in investigating the possible biological mechanisms of fatigue, identifying inflammation, dysregulation of the hypothalamic-pituitary-adrenal (HPA) axis, and activation of the autonomic nervous system. The purpose of this systematic review is to describe fatigue and what is known about the biological mechanisms described in cancer in five chronic, noninfectious illnesses: heart failure, multiple sclerosis, chronic kidney disease, rheumatoid arthritis, and chronic obstructive pulmonary disease...
January 1, 2018: Biological Research for Nursing
Coeway Boulder Thng, Yen Pin Tan, Vishal G Shelat
Backgrounds/Aims: Gas-forming pyogenic liver abscess (GFPLA) has an incidence of up to 30% of all pyogenic liver abscesses (PLA). GFPLA has higher mortality compared to non-GFPLA. Mere presence of gas within abscess may not determine clinical outcome. Hence it is important to study biologic characteristics that make GFPLA a distinct clinical entity. The aim of this study was to conduct a world review on GFPLA. Methods: We conducted literature searches in PubMed using the following MeSH terms: "gas forming" AND "Liver abscess, pyogenic", "gas" AND "Liver abscess, pyogenic", "gas" AND "Liver abscess", "gas forming" AND "Liver abscess"...
February 2018: Annals of Hepato-Biliary-Pancreatic Surgery
Yuanhan Chang, Abhijit Anil Tambe, Yoshinobu Maeda, Masahiro Wada, Tomoya Gonda
A literature review of finite element analysis (FEA) studies of dental implants with their model validation process was performed to establish the criteria for evaluating validation methods with respect to their similarity to biological behavior. An electronic literature search of PubMed was conducted up to January 2017 using the Medical Subject Headings "dental implants" and "finite element analysis." After accessing the full texts, the context of each article was searched using the words "valid" and "validation" and articles in which these words appeared were read to determine whether they met the inclusion criteria for the review...
March 8, 2018: International Journal of Implant Dentistry
Jian Zhang, Wen-Si He, Cheng Wang, Yi-Guo Yan, Zhi-Hua Ouyang, Jing-Bo Xue, Xue-Lin Li, Wen-Jun Wang
Multilevel cervical reconstruction and fusion after cervical tuberculosis has always been a challenge. The current implantation materials for cervical fusion, including titanium mesh, cage, and plate are limited by its inferior biological mechanical characteristics and the properties of the metallic material. This has led to the increased risk of recurrent infection after surgery. In addition, the unique nature of tuberculosis infection results in the low rate of cervical fusion and high risk of recurrence...
January 2018: Medicine (Baltimore)
Alex Mowat, Declan Maher, Kaven Baessler, Corina Christmann-Schmid, Nir Haya, Christopher Maher
BACKGROUND: Posterior vaginal wall prolapse (also known as 'posterior compartment prolapse') can cause a sensation of bulge in the vagina along with symptoms of obstructed defecation and sexual dysfunction. Interventions for prevention and conservative management include lifestyle measures, pelvic floor muscle training, and pessary use. We conducted this review to assess the surgical management of posterior vaginal wall prolapse. OBJECTIVES: To evaluate the safety and effectiveness of any surgical intervention compared with another surgical intervention for management of posterior vaginal wall prolapse...
March 5, 2018: Cochrane Database of Systematic Reviews
Sabrina Trippoli, Erminia Caccese, Giorgio Tulli, Pierluigi Ipponi, Claudio Marinai, Andrea Messori
BACKGROUND: In the clinical literature on abdominal hernia repair, no sound criteria have been established to support the use of biological meshes as opposed to synthetic ones. Furthermore, the information on biological meshes is quite scarce, and so their place in therapy has not yet been defined. METHODS: The treatment of primary and incisional ventral hernia was the target intervention evaluated in our analysis. Our study consisted of the following phases: a) Identification of the biologic meshes available on the market; b) Literature search focused on efficacy and safety of these meshes; c) Analysis of the findings derived from the literature search...
March 1, 2018: International Journal of Surgery
Hillel P Cohen, Andrew Blauvelt, Robert M Rifkin, Silvio Danese, Sameer B Gokhale, Gillian Woollett
INTRODUCTION: To evaluate the possibility that switching from reference biologic medicines to biosimilars could lead to altered clinical outcomes, including enhanced immunogenicity, compromised safety, or diminished efficacy for patients, a systematic literature review was conducted of all switching studies between related biologics (including biosimilars). METHODS: A systematic search was conducted using the Medline® and Embase® databases up to 30 June 2017 employing specific medical subject heading terms...
March 3, 2018: Drugs
Nan Ji, Tiantian Liu, Jingjie Xu, Longzhu Q Shen, Benzhuo Lu
Membrane channel proteins control the diffusion of ions across biological membranes. They are closely related to the processes of various organizational mechanisms, such as: cardiac impulse, muscle contraction and hormone secretion. Introducing a membrane region into implicit solvation models extends the ability of the Poisson-Boltzmann (PB) equation to handle membrane proteins. The use of lateral periodic boundary conditions can properly simulate the discrete distribution of membrane proteins on the membrane plane and avoid boundary effects, which are caused by the finite box size in the traditional PB calculations...
February 28, 2018: International Journal of Molecular Sciences
Vishal N Shah, Oleg Orlov, Ryan Hoffman, Konstadinos Plestis
The number of chest wall reconstructions with a biologic mesh is increasing, but its long-term durability is unproven. A 73-year-old man underwent a complex sternal reconstruction 7 years ago with porcine acellular dermal matrix after postoperative repair of his ruptured right ventricle after coronary artery bypass grafting. He recently presented with unstable angina. Cardiac catheterization showed occluded saphenous vein grafts, and the patient required repeat coronary artery bypass grafting. Upon re-entry into the chest, the mesh was completely incorporated into the surrounding tissues and maintained long-term durability...
February 26, 2018: European Journal of Cardio-thoracic Surgery
Daniel Martinho-Dias, Bernardo Sousa-Pinto, Júlio Botelho-Souza, António Soares, Luís Delgado, João Almeida Fonseca
We performed a MeSH term-based bibliometric analysis aiming to assess the publication trends of EAACI journals, namely Allergy, Pediatric Allergy and Immunology (PAI) (from 1990 to 2015) and Clinical and Translational Allergy (CTA) (from its inception in 2011 to 2015). We also aimed to discuss the impact of the creation of CTA in the publication topics of Allergy and PAI. We analysed a total of 1973 articles and 23,660 MeSH terms. Most MeSH terms in the three journals fell in the category of "basic immunology and molecular biology" (BIMB)...
2018: Clinical and Translational Allergy
Mubbshir Saleem, Alessandro Spagni, Luca Alibardi, Alberto Bertucco, Maria Cristina Lavagnolo
This study investigated the behaviour of dynamic membrane (DM) filtration for the treatment of stabilised landfill leachate in a bench-scale pre-anoxic and aerobic submerged dynamic membrane bioreactor (DMBR). Four meshes with different openings (10, 52, 85 and 200 μm) were tested to support the development of DM. Differences were observed among the meshes in supporting the development of the cake layer constituting the DM. The treatment of landfill leachate had an impact on sludge characteristics resulting in deteriorated filtration performance of the DM...
February 22, 2018: Journal of Environmental Management
Manuel Gregoritza, Kathrin Abstiens, Moritz Graf, Achim M Goepferich
Reducing burst effects, providing controlled release, and safeguarding biologics against degradation are a few of several highly attractive applications for microgels in the field of controlled release. However, the incorporation of proteins into microgels without impairing stability is highly challenging. In this proof of concept study, the combination of microfluidics and thiol-ene photoclick chemistry was evaluated for the fabrication of antibody-loaded microgels with narrow size distribution. Norbornene-modified eight-armed poly(ethylene glycol) with an average molecular mass of 10,000 Da, 20,000 Da, or 40,000 Da were prepared as macromonomers for microgel formation...
February 19, 2018: European Journal of Pharmaceutics and Biopharmaceutics
Francisco Javier Félix Torres, Arturo Garrido Mora, Yessenia Sánchez Alcudia, Alberto de Jesús Sánchez Martínez, Andrés Arturo Granados Berber, José Luis Ramos Palma
The scyphomedusae feed mainly on microscopic crustaceans, eggs and fish larvae, molluscs and some other jellyfishes. The distribution and abundance of the scyphomedusae has an economic and ecological impact as they are predators that have an influence on the population dynamics of other fisheries. This investigation took place in the lagoon system ‘Arrastradero-Redonda’, Tabasco, from September 2013 to August 2014, with the purpose to provide information on the distribution, and spatial and temporal abundance of Stomolophus meleagris; along with its relation to environmental parameters...
March 2017: Revista de Biología Tropical
J W Baddley, F Cantini, D Goletti, J J Gómez-Reino, E Mylonakis, R San-Juan, M Fernández-Ruiz, J Torre-Cisneros
BACKGROUND: The present review is part of the ESCMID Study Group for Infections in Compromised Hosts (ESGICH) Consensus Document on the safety of targeted and biological therapies. AIMS: To review, from an Infectious Diseases perspective, the safety profile of agents targeting tumour necrosis factor-α (TNF-α) and to suggest preventive recommendations. SOURCES: Computer-based MEDLINE searches with MeSH terms pertaining to each agent or therapeutic family...
February 6, 2018: Clinical Microbiology and Infection
David M Burmeister, Randolph Stone, Nicole Wrice, Alfred Laborde, Sandra C Becerra, Shanmugasundaram Natesan, Robert J Christy
Harvesting of autografts results in donor site morbidities and is limited in scenarios such as large total body surface area burns. In these instances, coverage is increased by meshing grafts at the expense of delayed biologic closure. Moreover, graft meshing increases the likelihood of contraction and hypertrophic scarring, limits range of motion, and worsens cosmesis. Many tissue engineering technologies have touted the promise of adipose-derived stem cells (ASCs) for burn wounds. The primary objective of the current study was to determine feasibility and efficacy of in situ ASC delivery via PEGylated fibrin (FPEG) hydrogels as adjuncts to meshed split thickness skin grafts in a porcine model...
February 18, 2018: Stem Cells Translational Medicine
Mayumi Kako, Karen Hammad, Satoko Mitani, Paul Arbon
OBJECTIVES: This review was conducted to explore the literature to determine the availability, content, and evaluation of existing chemical, biological, radiological, and nuclear (CBRN) education programs for health professionals. METHODS: An integrative review of the international literature describing disaster education for CBRN (2004-2016) was conducted. The following relevant databases were searched: Proquest, Pubmed, Science Direct, Scopus, Journals @ OVID, Google Scholar, Medline, and Ichuschi ver...
February 19, 2018: Prehospital and Disaster Medicine
Mark Reinwald, Jose T Silva, Nicolas J Mueller, Jesús Fortún, Christian Garzoni, Johan W de Fijter, Mario Fernández-Ruiz, Paolo Grossi, Jose María Aguado
BACKGROUND: The present review is part of the ESCMID Study Group for Infections in Compromised Hosts (ESGICH) Consensus Document on the safety of targeted and biological therapies. AIMS: To review, from an Infectious Diseases perspective, the safety profile of therapies targeting different intracellular signaling pathways and to suggest preventive recommendations. SOURCES: Computer-based MEDLINE searches with MeSH terms pertaining to each agent or therapeutic family...
February 15, 2018: Clinical Microbiology and Infection
Nagore Cuevas, Marta Martins, Pedro M Costa
Estuaries, coastal lagoons and other transition ecosystems tend to become the ultimate reservoirs of pollutants transported by continental runoff, among which pesticides constitute the class of most concern. High amounts of dissolved and particulated organic matter greatly contribute to the accumulation of pesticides that eventually become trapped in sediments or find their way along food chains. Perhaps not so surprisingly, it is common to find elevated levels of pesticides in estuarine sediments decades after their embargo...
February 15, 2018: Ecotoxicology
Jeffrey Chee Yean Chan, Krishna Burugapalli, Yi-Shiang Huang, Jack L Kelly, Abhay Pandit
Abdominal wall repair frequently utilizes either non-degradable or bio-degradable meshes, which are found to stimulate undesirable biological tissue responses or which possess suboptimal degradation rate. In this study, a biologic mesh prototype made from carbodiimide-cross-linked cholecyst-derived extracellular matrix (EDCxCEM) was compared with small intestinal submucosa (Surgisis®), cross-linked bovine pericardium (Peri-Guard®), and polypropylene (Prolene®) meshes in an in vivo rabbit model. The macroscopic appearance and stereological parameters of the meshes were evaluated...
February 16, 2018: Tissue Engineering. Part A
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