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Biologic mesh

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https://www.readbyqxmd.com/read/28218399/smooth-operator-the-effects-of-different-3d-mesh-retriangulation-protocols-on-the-computation-of-dirichlet-normal-energy
#1
Jackson P Spradley, James D Pampush, Paul E Morse, Richard F Kay
OBJECTIVES: Dirichlet normal energy (DNE) is a metric of surface topography that has been used to evaluate the relationship between the surface complexity of primate cheek teeth and dietary categories. This study examines the effects of different 3D mesh retriangulation protocols on DNE. We examine how different protocols influence the DNE of a simple geometric shape-a hemisphere-to gain a more thorough understanding than can be achieved by investigating a complex biological surface such as a tooth crown...
February 20, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28217988/complex-abdominal-wall-defect-repair-using-biologic-porcine-matrix
#2
Eleftherios Gialamas, Alexandre Balaphas, Michela Assalino, Philippe Morel, Christian Toso, Wojciech Staszewicz
BACKGROUND: The management of patients with complex abdominal wall defect (CAWD) is challenging, and requires appropriate surgical planning, and intensive patient preparation in order to minimize postoperative complications. The aim of this work was to review the management of CAWD using one-stage repair with biologic mesh. METHODS: We retrospectively reviewed patients with CAWD having undergone repair with biologic mesh between January 2013 and October 2014. Demographics, preoperative assessment, intraoperative management and postoperative outcomes were assessed...
February 17, 2017: Minerva Chirurgica
https://www.readbyqxmd.com/read/28216296/cyclodextrin-modified-plla-parietal-reinforcement-implant-with-prolonged-antibacterial-activity
#3
G Vermet, S Degoutin, F Chai, M Maton, C Flores, C Neut, P E Danjou, B Martel, N Blanchemain
: The use of textile meshes in hernia repair is widespread in visceral surgery. Though, mesh infection is a complication that may prolong the patient recovery period and consequently presents an impact on public health economy. Such concern can be avoided thanks to a local and extended antibiotic release on the operative site. In recent developments, poly-L-lactic acid (PLLA) has been used in complement of polyethyleneterephthalate (Dacron(®)) (PET) or polypropylene (PP) yarns in the manufacture of semi-resorbable parietal implants...
February 12, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28215734/clinical-experiences-with-the-use-of-ultrapro-%C3%A2-mesh-in-single-stage-direct-to-implant-immediate-postmastectomy-breast-reconstruction-in-102-patients-a-retrospective-cohort-study
#4
D Pukancsik, P Kelemen, G Gulyás, M Újhelyi, E Kovács, K Éles, N Mészáros, I Kenessey, P Pálházi, T Kovács, M Kásler, Z Mátrai
BACKGROUND: Acellular dermal matrices have been used for direct-to-implant (DTI) breast reconstruction (BR), eliminating the load of the lower pole skin envelope. However, the available allograft matrices add considerable health care costs. This study examined the long-term follow-up of synthetic ULTRAPRO(®) mesh as a low-cost potential alternative to biological matrices. PATIENTS AND METHODS: A retrospective cohort study was performed between January 2013 and January 2016, involved 112 early-stage breast cancer and/or BRCA 1/2 patients, and evaluated 189 immediate DTI BRs following skin-, areola- or nipple-sparing mastectomy using ULTRAPRO(®) mesh...
February 6, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28214477/hospital-wide-porcine-mesh-conversion-results-in-cost-savings-with-equivalent-clinical-outcomes
#5
Nickolas Byrge, Mary C Mone, Daniel Vargo
BACKGROUND: A variety of biologic mesh is available for ventral hernia repair. Despite widely variable costs, there is no data comparing cost of material to clinical outcome. METHODS: Biologic mesh product change was examined. A prospective survey was done to determine appropriate biologic mesh utilization, followed by a retrospective chart review of those treated from Sept. 2012 to Aug. 2013 with Strattice™ and from Sept. 2013 to Aug. 2014 with Permacol™. Outcome variables included complications associated with each material, repair success, and cost difference over the two periods...
February 12, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/28185664/review-of-the-role-of-probiotics-in-gastrointestinal-diseases-in-adults
#6
Juan José Sebastián Domingo
BACKGROUND: Probiotics may act as biological agents that modify the intestinal microbiota and certain cytokine profiles, which can lead to an improvement in certain gastrointestinal diseases. OBJECTIVES: To conduct a review of the evidence of the role of probiotics in certain gastrointestinal diseases in adults. SEARCH METHODS: Review conducted using appropriate descriptors, filters and limits in the PubMed database (MEDLINE). SELECTION CRITERIA: The MeSH terms used were Probiotics [in the title] AND Gastrointestinal Diseases, with the following limits or filters: Types of study: Systematic Reviews, Meta-Analysis, Guideline, Practice Guideline, Consensus Development Conference (and Consensus Development Conference NIH), Randomized Controlled Trial, Controlled Clinical Trial and Clinical Trial; age: adults (19 or older); language: English and Spanish; in humans, and with at least one abstract...
February 6, 2017: Gastroenterología y Hepatología
https://www.readbyqxmd.com/read/28170080/mesh-fixation-with-glue-versus-suture-for-chronic-pain-and-recurrence-in-lichtenstein-inguinal-hernioplasty
#7
REVIEW
Ping Sun, Xiang Cheng, Shichang Deng, Qinggang Hu, Yi Sun, Qichang Zheng
BACKGROUND: Chronic pain following mesh-based inguinal hernia repair is frequently reported, and has a significant impact on quality of life. Whether mesh fixation with glue can reduce chronic pain without increasing the recurrence rate is still controversial. OBJECTIVES: To determine whether tissue adhesives can reduce postoperative complications, especially chronic pain, with no increase in recurrence rate, compared with sutures for mesh fixation in Lichtenstein hernia repair...
February 7, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28158165/ketamine-an-update-on-cellular-and-subcellular-mechanisms-with-implications-for-clinical-practice
#8
Gary J Iacobucci, Ognjen Visnjevac, Leili Pourafkari, Nader Djalal Nader
BACKGROUND: Ketamine is one of the oldest hypnotic agents used to provide an anesthetic agent with analgesic properties and minimal suppressive effects on respiration. The ability of ketamine in modulating glutamatergic (N-methyl D-aspartate) pain receptors has made this anesthetic drug a new option for the management of patients with chronic pain syndromes. Further preclinical and clinical findings suggest ketamine may have wide ranging effects on both cognition and development. Recent advances have revealed an unprecedented role for ketamine in the acute management of depression...
February 2017: Pain Physician
https://www.readbyqxmd.com/read/28157204/multi-shell-nano-carboscavengers-for-petroleum-spill-remediation
#9
Enrique A Daza, Santosh K Misra, John Scott, Indu Tripathi, Christine Promisel, Brajendra K Sharma, Jacek Topczewski, Santanu Chaudhuri, Dipanjan Pan
Increasingly frequent petroleum contamination in water bodies continues to threaten our ecosystem, which lacks efficient and safe remediation tactics both on macro and nanoscales. Current nanomaterial and dispersant remediation methods neglect to investigate their adverse environmental and biological impact, which can lead to a synergistic chemical imbalance. In response to this rising threat, a highly efficient, environmentally friendly and biocompatible nano-dispersant has been developed comprising a multi-shelled nanoparticle termed 'Nano-CarboScavengers' (NCS) with native properties for facile recovery via booms and mesh tools...
February 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28139110/-abdominal-traumatic-evisceration-reconstruction-abdominal-wall-with-biologic-mesh-and-negative-pressure-therapy
#10
M Jiménez Gómez, N Betancor Rivera, J Lima Sánchez, J R Hernández Hernández
INTRODUCTION: Abdominal traumatic evisceration as a result of high energy trauma is uncommon. Once repaired the possible internal damage, an abdominal wall defect of high complexity may exist, whose reconstruction represents a surgical challenge. CASE REPORT: Politraumatized male with important abdominal muculocutaneous avulsion and evisceration. After initial repair, the patient developed a big eventration in which we use a porcine dermis-derived mesh (Permacol(TM)), a safe and effective alternative in abdominal wall repair, thanks to its seamless integration with other tissues, even when exposed...
April 10, 2016: Cirugía Pediátrica: Organo Oficial de la Sociedad Española de Cirugía Pediátrica
https://www.readbyqxmd.com/read/28118541/nonwoven-polymer-nanofiber-coatings-that-inhibit-quorum-sensing-in-staphylococcus-aureus-toward-new-nonbactericidal-approaches-to-infection-control
#11
Michael J Kratochvil, Tian Yang, Helen E Blackwell, David M Lynn
We report the fabrication and biological evaluation of nonwoven polymer nanofiber coatings that inhibit quorum sensing (QS) and virulence in the human pathogen Staphylococcus aureus. Our results demonstrate that macrocyclic peptide 1, a potent and synthetic nonbactericidal quorum sensing inhibitor (QSI) in S. aureus, can be loaded into degradable polymer nanofibers by electrospinning and that this approach can deposit QSI-loaded nanofiber coatings onto model nonwoven mesh substrates. The QSI was released over ∼3 weeks when these materials were incubated in physiological buffer, retained its biological activity, and strongly inhibited agr-based QS in a GFP reporter strain of S...
February 20, 2017: ACS Infectious Diseases
https://www.readbyqxmd.com/read/28117963/chitosan-intercalated-montmorillonite-poly-vinyl-alcohol-nanofibers-as-a-platform-to-guide-neuron-like-differentiation-of-human-dental-pulp-stem-cells
#12
Hatef Ghasemi Hamidabadi, Zahra Rezvani, Maryam Nazm Bojnordi, Haji Shirinzadeh, Alexander M Seifalian, Mohammad Taghi Joghataei, Mojgan Razaghpour, Abbas Alibakhshi, Abolfazl Yazdanpanah, Maryam Salimi, Masoud Mozafari, Aleksandra M Urbanska, Rui L Reis, Subhas C Kundu, Mazaher Gholipourmalekabadi
In this study, we present a novel chitosan-intercalated montmorillonite/Poly(Vinyl alcohol) (OMMT/PVA) nanofibrous mesh as a microenvironment for guiding differentiation of human dental pulp stem cells (hDPSCs) toward neuron-like cells. The OMMT was prepared through ion exchange reaction between the montmorillonite (MMT) and chitosan. The PVA solutions containing various concentrations of OMMT were electrospun to form 3-D OMMT-PVA nanofibrous meshes. The biomechanical and biological characteristics of the nanofibrous meshes were evaluated by ATR-FTIR, XRD, SEM, MTT, LDH specific activity, contact angle, and DAPI staining...
January 24, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28102927/complex-abdominal-wall-reconstruction-in-the-setting-of-active-infection-and-contamination-a-systematic-review-of-hernia-and-fistula-recurrence-rates
#13
REVIEW
Jonathan D Hodgkinson, Yasuko Maeda, Cosimo A Leo, Janindra Warusavitarne, Carolynne J Vaizey
INTRODUCTION: Minimal evidence exists to guide the surgeon on the risk of complications when performing abdominal wall reconstruction (AWR) in the presence of active infection, contamination or enterocutaneous fistula. This study aims to establish the outcomes of contaminated complex AWR. METHODS: Analysis was conducted according to PRISMA guidelines. Systematic search of the MEDLINE, EMBASE and Pubmed databases was performed. Studies reporting exclusively on single-staged repair of contaminated complex AWR were included...
January 19, 2017: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
https://www.readbyqxmd.com/read/28095515/effects-of-ultraviolet-photofunctionalization-on-bone-augmentation-and-integration-capabilities-of-titanium-mesh-and-implants
#14
Makoto Hirota, Takayuki Ikeda, Masako Tabuchi, Tomomichi Ozawa, Iwai Tohnai, Takahiro Ogawa
PURPOSE: Ultraviolet (UV)-mediated photofunctionalization has earned considerable attention for the enhancement of the biologic capabilities of titanium. The effects of photofunctionalization on bone augmentation and gap closure were examined using titanium implants and mesh in a rat femur model. MATERIALS AND METHODS: An acid-etched titanium implant (4-mm length, 1-mm diameter) was placed in the gluteal tuberosity that resembles a knife-edge-like edentulous ridge...
January 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28093117/the-biological-prosthesis-is-a-viable-option-for-abdominal-wall-reconstruction-in-pediatric-high-risk-defects
#15
Osnat Zmora, Shannon L Castle, Stephanie Papillon, James E Stein
BACKGROUND: Our aim was to explore the indications for and outcome of biological prostheses to repair high risk abdominal wall defects in children. METHODS: A retrospective chart review was performed of all cases of abdominal wall reconstruction in a single institution between 2007 and 2015. Demographic and clinical variables, technique and complications were described and compared between prosthesis types. RESULTS: A total of 23 patients underwent abdominal wall reconstruction using a biological prosthesis including 17 neonates...
January 6, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/28059915/bio-thiersch-as-an-adjunct-to-perineal-proctectomy-reduces-rates-of-recurrent-rectal-prolapse
#16
Saleh M Eftaiha, Jed F Calata, Jeremy J Sugrue, Slawomir J Marecik, Leela M Prasad, Anders Mellgren, Johan Nordenstam, John J Park
BACKGROUND: The rates of recurrent prolapse after perineal proctectomy vary widely in the literature, with incidences ranging between 0% and 50%. The Thiersch procedure, first described in 1891 for the treatment of rectal prolapse, involves encircling the anus with a foreign material with the goal of confining the prolapsing rectum above the anus. The Bio-Thiersch procedure uses biological mesh for anal encirclement and can be used as an adjunct to perineal proctectomy for rectal prolapse to reduce recurrence...
February 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/28059914/risk-factors-for-recurrence-after-laparoscopic-ventral-rectopexy
#17
Cherylin W P Fu, Andrew R L Stevenson
BACKGROUND: Laparoscopic ventral rectopexy effectively treats posterior compartment prolapse. However, recurrence after laparoscopic ventral rectopexy is poorly understood. OBJECTIVE: This study aimed to evaluate factors contributing to recurrence after laparoscopic ventral rectopexy. DESIGN: A retrospective cohort analysis was performed of patients who underwent laparoscopic ventral rectopexy between June 2008 and June 2014. Patients presenting with full-thickness rectal prolapse were compared against the rest...
February 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/28052810/clinical-effectiveness-and-cost-effectiveness-of-surgical-options-for-the-management-of-anterior-and-or-posterior-vaginal-wall-prolapse-two-randomised-controlled-trials-within-a-comprehensive-cohort-study-results-from-the-prospect-study
#18
Cathryn Glazener, Suzanne Breeman, Andrew Elders, Christine Hemming, Kevin Cooper, Robert Freeman, Anthony Smith, Suzanne Hagen, Isobel Montgomery, Mary Kilonzo, Dwayne Boyers, Alison McDonald, Gladys McPherson, Graeme MacLennan, John Norrie
BACKGROUND: The use of mesh in prolapse surgery is controversial, leading to a number of enquiries into its safety and efficacy. OBJECTIVE: To compare synthetic non-absorbable mesh inlay, biological graft and mesh kit with a standard repair in terms of clinical effectiveness, adverse effects, quality of life (QoL), costs and cost-effectiveness. DESIGN: Two randomised controlled trials within a comprehensive cohort (CC) study. Allocation was by a remote web-based randomisation system in a 1 :1 : 1 ratio (Primary trial) or 1 : 1 : 2 ratio (Secondary trial), and was minimised on age, type of prolapse repair planned, need for a concomitant continence procedure, need for a concomitant upper vaginal prolapse procedure and surgeon...
December 2016: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/28052797/involvement-of-micrornas-in-skin-disorders-a-literature-review
#19
Carmen Mannucci, Marco Casciaro, Paola L Minciullo, Gioacchino Calapai, Michele Navarra, Sebastiano Gangemi
BACKGROUND: miRNAs are a class of noncoding RNA molecules that modulate gene expression after transcription. It is known that miRNAs are involved in various cellular processes of both normal and diseased skin. Recently, differential expressions of miRNAs have been reported and associated with several immunologic and inflammatory disorders, which indicate a common role in fundamental biologic processes. OBJECTIVE: To collect and review data from the literature on involvement of miRNA in inflammatory skin disorders...
January 1, 2017: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/28052350/eses-software-for-eulerian-solvent-excluded-surface
#20
Beibei Liu, Bao Wang, Rundong Zhao, Yiying Tong, Guo-Wei Wei
Solvent excluded surface (SES) is one of the most popular surface definitions in biophysics and molecular biology. In addition to its usage in biomolecular visualization, it has been widely used in implicit solvent models, in which SES is usually immersed in a Cartesian mesh. Therefore, it is important to construct SESs in the Eulerian representation for biophysical modeling and computation. This work describes a software package called Eulerian solvent excluded surface (ESES) for the generation of accurate SESs in Cartesian grids...
March 15, 2017: Journal of Computational Chemistry
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