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aseptic sterilization

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https://www.readbyqxmd.com/read/28799106/chemical-sterilization-of-allograft-dermal-tissues
#1
Abigail Phipps, Edward Vaynshteyn, John B Kowalski, Manh-Dan Ngo, Karen Merritt, Joel Osborne, Evangelia Chnari
Common terminal sterilization methods are known to alter the natural structure and properties of soft tissues. One approach to providing safe grafts with preserved biological properties is the combination of a validated chemical sterilization process followed by an aseptic packaging process. This combination of processes is an accepted method for production of sterile healthcare products as described in ANSI/AAMI ST67:2011. This article describes the validation of the peracetic acid and ethanol-based (PAAE) chemical sterilization process for allograft dermal tissues at the Musculoskeletal Transplant Foundation (MTF, Edison, NJ)...
August 10, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28796279/withdrawn-intermittent-catheterisation-for-long-term-bladder-management
#2
REVIEW
Jacqui Prieto, Catherine L Murphy, Katherine N Moore, Mandy Fader
BACKGROUND: Intermittent catheterisation is a commonly recommended procedure for people with incomplete bladder emptying. There are now several designs of intermittent catheter (e.g. different lengths, 'ready to use' presentation) with different materials (e.g. PVC-free) and coatings (e.g. hydrophilic). The most frequent complication of intermittent catheterisation is urinary tract infection (UTI), but satisfaction, preference and ease of use are also important to users. It is unclear which catheter designs, techniques or strategies affect the incidence of UTI, which are preferable to users and which are most cost effective...
August 8, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28758156/varicella-zoster-virus-and-large-vessel-vasculitis-the-absence-of-an-association
#3
Gary W Procop, Charis Eng, Alison Clifford, Alexandra Villa-Forte, Leonard H Calabrese, Eric Roselli, Lars Svensson, Douglas Johnston, Gosta Pettersson, Edward Soltesz, Lisa Lystad, Julian D Perry, Alexander Blandford, Deborah A Wilson, Gary S Hoffman
OBJECTIVE: It is controversial whether microorganisms play a role in the pathogenesis of large and medium vessel vasculitides (eg, giant cell arteritis [GCA], Takayasu arteritis [TAK] and focal idiopathic aortitis [FIA]). Recent studies have reported the presence of Varicella Zoster Virus (VZV) within formalin-fixed, paraffin-embedded temporal arteries and aortas of about three-quarters or more of patients with these conditions, and in a minority of controls. In a prospective study, we sought to confirm these findings using DNA extracted from vessels that were harvested under surgically aseptic conditions and snap frozen...
2017: Pathogens & Immunity
https://www.readbyqxmd.com/read/28748050/assessment-of-facultative-anaerobes-from-the-root-canals-of-deciduous-molars-an-in-vivo-study
#4
Manisha Chandwani, Shweta Chandak
Background. The current research aimed to assess the prevalence of facultative anaerobes isolated from the root canals of deciduous molars. Methods. The present research enrolled 60 children in the 6‒9-year age group based on clinical and radiographic findings. Under aseptic conditions, access cavities were prepared followed by collection of samples from infected root canals with the help of sterile paper points. The samples thus obtained were subjected for microbial assay. Results. It was found that Enterococcus faecalis was isolated in 30% of cases, Escherichia coli in 28...
2017: Journal of Dental Research, Dental Clinics, Dental Prospects
https://www.readbyqxmd.com/read/28745283/fabrication-of-biopolymer-based-nanocomposite-wound-dressing-evaluation-of-wound-healing-properties-and-wound-microbial-load
#5
Ali Es-Haghi, Mohammad Mashreghi, Mahere Rezazade Bazaz, Masoud Homayouni-Tabrizi, Majid Darroudi
The aim of this study is to introduce natural-based polymers, chitosan and starch, to design a remedial nanocomposite, comprising of cerium oxide nanoparticles and silver nanoparticles, to investigate their effects in accelerating wound healing and in wound microbial load. Cerium oxide nanoparticles synthesized in starch solution added to the colloidal dispersion of synthesized silver nanoparticles in chitosan to make a three-component nanomaterial. Mice were anaesthetized and two parallel full-thickness round wounds were excised under aseptic conditions with the help of sterile dermal biopsy punch...
August 2017: IET Nanobiotechnology
https://www.readbyqxmd.com/read/28724496/effects-of-time-and-storage-conditions-on-the-chemical-and-microbiologic-stability-of-diluted-buprenorphine-for-injection
#6
Johnathan M DenHerder, Ralph L Reed, Jennifer L Sargent, Gerd Bobe, Jan F Stevens, Helen E Diggs
Buprenorphine is a partial μ-opioid agonist used for analgesia. Due to the small size of laboratory rodents, buprenorphine HCl is typically diluted 10- or 20-fold with a sterile diluent, such as saline, for accurate dosing. Protocols for preparing and storing diluted buprenorphine vary by institution, and little published information is available regarding stability and beyond-use dating of specific buprenorphine preparations. The purpose of this study was to determine the chemical and microbiologic stability of diluted buprenorphine stored for a maximum of 180 d...
July 1, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28717318/hemogram-responses-in-goats-toward-challenged-with-corynebacterium-pseudotuberculosis-and-its-immunogen-mycolic-acids
#7
Mohammed Naji Odhah, Faez Firdaus Jesse Abdullah, Abd Wahid Haron, Mohd Azmi Mohd Lila, Mohd Zamri-Saad, Zaid Khuder, Idris Umar Hambali, Muhammed Umar, Wessam Monther Saleh
AIM: This study was conducted to analyze the changes in blood profile of goats inoculated with Corynebacterium pseudotuberculosis and its immunogen mycolic acid (MA) extract. MATERIALS AND METHODS: A total of 12 clinically healthy crossbred Boer female goats were divided into three groups; A, B and C (4 goats each per group). Group A was inoculated with 2 ml sterile phosphate buffered saline via intradermal route as the negative control group whilst Group B was inoculated with 2 ml of MA extract (1 g/ml) intradermally and Group C was then inoculated with 2 ml (1×10(9)) colony forming unit of active C...
June 2017: Veterinary World
https://www.readbyqxmd.com/read/28714050/superiority-of-the-sonication-method-against-conventional-periprosthetic-tissue-cultures-for-diagnosis-of-prosthetic-joint-infections
#8
Sofia Tani, Panagiotis Lepetsos, Antonios Stylianakis, John Vlamis, Konstantinos Birbas, Ioannis Kaklamanos
INTRODUCTION: Diagnosis of periprosthetic infections is challenging. The aim of this study was to compare the diagnostic accuracy of conventional periprosthetic tissue culture and culture of sonication fluid of the explanted prostheses. METHODS: We prospectively enrolled 114 patients undergoing revision hip or knee arthroplasty because of loosening of the prostheses, at our institution, between July 2012 and July 2016. Patients' medical history and demographic characteristics were recorded...
July 17, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28691448/evaluation-of-chemical-physical-properties-and-cytocompatibility-of-theracal-lc
#9
A Buonavoglia, D Lauritano, D Perrone, F Ardito, G Troiano, M Dioguardi, V Candotto, F J Silvestre, L Lo Muzio
TheraCal LC (TLC, Bisco Inc., Schaumburg, IL, USA) is a light-cured, resin-modified, calcium silicate-filled base/liner material designed for direct and indirect pulp-capping. In this study the result of the evaluation in vitro of the biocompatibility and chemical-physical properties of TLC are reported. TLC specimens were prepared under aseptic conditions in strict compliance with the manufacturer’s instructions and sterilized. Osteoblast-like cells (MG63) were used. For different time points, solubility, water uptake, alkalinizing activity and cytotoxicity were evaluated...
April 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28665993/knowledge-attitudes-and-practice-on-the-prevention-of-central-line-associated-bloodstream-infections-among-nurses-in-oncological-care-a-cross-sectional-study-in-an-area-of-southern-italy
#10
Maria Rosaria Esposito, Assunta Guillari, Italo Francesco Angelillo
The objectives of the cross-sectional study were to delineate the knowledge, attitudes, and behavior among nurses regarding the prevention of central line-associated bloodstream infections (CLABSIs) and to identify their predisposing factors. A questionnaire was self-administered from September to November 2011 to nurses in oncology and outpatient chemotherapy units in 16 teaching and non-teaching public and private hospitals in the Campania region (Italy). The questionnaire gathered information on demographic and occupational characteristics; knowledge about evidence-based practices for the prevention of CLABSIs; attitudes towards guidelines, the risk of transmitting infections, and hand-washing when using central venous catheter (CVC); practices about catheter site care; and sources of information...
2017: PloS One
https://www.readbyqxmd.com/read/28663773/optimizing-outcomes-of-postmastectomy-breast-reconstruction-with-acellular-dermal-matrix-a-review-of-recent-clinical-data
#11
Michael Zenn, Mark Venturi, Troy Pittman, Scott Spear, Geoffrey Gurtner, Geoffrey Robb, Alex Mesbahi, Joseph Dayan
Background: This article reports on the current use of acellular dermal matrix in breast reconstruction. Methods: A literature review of articles on acellular dermal matrix in breast reconstruction from January 1, 2010, through December 20, 2016, was performed and analyzed for trends in acellular dermal matrix use and differences between commonly used acellular dermal matrixes. Findings: Clinical findings varied but include improved cosmesis and more 1-stage reconstructions using acellular dermal matrix. Superiority of sterile versus aseptic acellular dermal matrixes was noted, and the increased incidence of red breast syndrome with AlloDerm was significant...
2017: Eplasty
https://www.readbyqxmd.com/read/28656169/chronic-recurrent-multifocal-osteomyelitis-in-a-9-year-old-boy
#12
Abdolreza Malek, Mohammadhassan Aelami, Narges Afzali, Ali Parsa, Havva Jalalinia
Chronic recurrent multifocal osteomyelitis (CRMO) is a rare aseptic, auto-inflammatory bone disorder. CRMO presents with bone pain with or without fever. The diagnosis of CRMO is a diagnosis of exclusion and should be included in the differential diagnosis of chronic inflammatory bone lesions in children. Cultures of the bone are typically sterile, antibiotic therapy does not result in clinical improvement whereas anti-inflammatory drugs improve the condition. Furthermore, biopsy should be considered in chronic and relapsing bone pain and swelling unresponsive to treatment...
May 2017: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/28654596/a-microbiological-and-ultrastructural-comparison-of-aseptic-versus-sterile-acellular-dermal-matrix-as-a-reconstructive-material-and-a-scaffold-for-stem-cell-ingrowth
#13
Shaun D Mendenhall, Ryan W Schmucker, Timothy H F Daugherty, Katherine M Kottwitz, Joel D Reichensperger, Janak Koirala, Paul S Cederna, Michael W Neumeister
BACKGROUND: Recent data suggest an increased risk for infection when acellular dermal matrix is used in breast reconstruction. This may be because some acellular dermal matrices are actually not terminally sterilized but are instead "aseptically processed." This study evaluates aseptic and sterile matrices for evidence of bacterial contamination and whether or not terminal sterilization affects matrix collagen architecture and stem cell ingrowth. METHODS: Five separate samples of 14 different matrices were analyzed by fluorescent in situ hybridization using a bacterial DNA probe to detect bacterial DNA on the matrices...
July 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28645998/stability-of-tacrolimus-ophthalmic-solution
#14
Carlos Ezquer-Garin, Rafael Ferriols-Lisart, Manuel Alós-Almiñana
PURPOSE: The stability of 0.3-mg/mL tacrolimus ophthalmic solution at different storage temperatures was studied. METHODS: A sterile ophthalmic solution of 0.3 mg/mL tacrolimus was prepared in triplicate under aseptic conditions by diluting tacrolimus in eye drops. Three aliquots of this solution were transferred into polypropylene bottles and stored at 25, 2-8, or -15 to -25 °C. Samples were collected immediately after preparation and at selected time points and assayed in triplicate using high-performance liquid chromatography (HPLC)...
July 1, 2017: American Journal of Health-system Pharmacy: AJHP
https://www.readbyqxmd.com/read/28624776/mold-control-and-detection-in-biological-drug-substance-manufacturing-facilities-an-industry-perspective
#15
Anita Bawa, Sophia Asefi, Stephanie Ramsey, Christine Arbesser-Rastburg, Mousumi Paul, Francisco Leira, Kim McFarland, Tracy Landeryou, Bindhu Reddy, Marie Murphy, Barbara Daddis, David Baine, Derek Willison-Parry
The biopharmaceutical industry produces non-sterile and/or low-bioburden intermediates and bulk biologics (i.e. Drug Substances) using bioburden controlled processes in accordance to Q7A and Annex 2. In many cases, single mold isolation events have received a high level of scrutiny; the goal of this paper is to challenge this paradigm and provide the rationale for an enhanced control approach that focuses on trending of mold species as microbial indicators rather than on single isolation events. Molds, can also be part (in much lower numbers) of the normal microbial population of a biologics manufacturing facility and, therefore, mold isolation is not an unexpected event in non-aseptic processing environments...
June 16, 2017: PDA Journal of Pharmaceutical Science and Technology
https://www.readbyqxmd.com/read/28616079/surgical-site-infection-and-its-associated-factors-following-cesarean-section-a-cross-sectional-study-from-a-public-hospital-in-ethiopia
#16
Kelemu Abebe Gelaw, Amlaku Mulat Aweke, Feleke Hailemichael Astawesegn, Birhanu Wondimeneh Demissie, Liknaw Bewket Zeleke
BACKGROUND: A cesarean section is a surgical procedure in which incisions are made through a woman's abdomen and uterus to deliver her baby. Surgical site infections are a common surgical complication among patients delivered with cesarean section. Further it caused to increase maternal morbidity, stay of hospital and the cost of treatment. METHODS: Hospital based cross-sectional study was conducted to assess the magnitude of surgical site infection following cesarean Site Infections and its associated factors at Lemlem Karl hospital July 1, 2013 to June 30, 2016...
2017: Patient Safety in Surgery
https://www.readbyqxmd.com/read/28605693/evaluation-of-flunixin-meglumine-pour-on-administration-on-prostaglandin-e2-concentration-in-inflammatory-exudate-after-induction-of-inflammation-in-cattle
#17
Julien Thiry, René Fournier, Olivier Roy, Mathias Catala
The effect of flunixin transdermal pour-on solution (Finadyne® Transdermal; MSD Animal Health) on prostaglandin E2 (PGE2) synthesis in bovine inflammatory exudate was evaluated in a tissue cage model of acute inflammation. Twelve calves were randomly allocated to two-treatment groups over two sequences. Three weeks prior to the first period, sterile hollow perforated polyethylene balls were surgically embedded in the subcutis at four distinct sites in each animal. On the first day of each period, an aseptic inflammation was induced by injecting 0...
April 20, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28589874/effects-of-time-and-storage-conditions-on-the-chemical-and-microbiologic-stability-of-diluted-buprenorphine-for-injection
#18
Johnathan M DenHerder, Ralph L Reed, Jennifer L Sargent, Gerd Bobe, Jan F Stevens, Helen E Diggs
Buprenorphine is a partial μ-opioid agonist used for analgesia. Due to the small size of laboratory rodents, buprenorphineHCl is typically diluted 10- or 20-fold with a sterile diluent, such as saline, for accurate dosing. Protocols for preparing andstoring diluted buprenorphine vary by institution, and little published information is available regarding stability andbeyond-use dating of specific buprenorphine preparations. The purpose of this study was to determine the chemical andmicrobiologic stability of diluted buprenorphine stored for a maximum of 180 d...
June 6, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28575999/sterilization-of-silicone-based-hydrogels-for-biomedical-application-using-ozone-gas-comparison-with-conventional-techniques
#19
Raquel Galante, Daniela Ghisleni, Patrizia Paradiso, Vitor D Alves, Terezinha J A Pinto, Rogério Colaço, Ana Paula Serro
Sterilization of hydrogels is challenging due to their often reported sensitivity to conventional methods involving heat or radiation. Although aseptic manufacturing is a possibility, terminal sterilization is safer in biological terms, leading to a higher overall efficiency, and thus should be used whenever it is possible. The main goal of this work was to study the applicability of an innovative ozone gas terminal sterilization method for silicone-based hydrogels and compare its efficacy and effects with those of traditional sterilization methods: steam heat and gamma irradiation...
September 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28560952/effects-of-time-and-storage-conditions-on-the-chemical-and-microbiologic-stability-of-diluted-buprenorphine-for-injection
#20
Ralph L Reed, Johnathan M DenHerder, Jennifer L Sargent, Gerd Bobe, J Fred Stevens, Helen E Diggs
Buprenorphine is a partial μ-opioid agonist used for analgesia. Due to the small size of laboratory rodents, buprenorphineHCl is typically diluted 10- or 20-fold with a sterile diluent, such as saline, for accurate dosing. Protocols for preparing andstoring diluted buprenorphine vary by institution, and little published information is available regarding stability and beyond-use dating of specific buprenorphine preparations. The purpose of this study was to determine the chemical and microbiologic stability of diluted buprenorphine stored for a maximum of 180 d...
May 30, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
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