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https://www.readbyqxmd.com/read/28211334/adsorption-capacity-of-multiple-dna-sources-to-clay-minerals-and-environmental-soil-matrices-less-than-previously-estimated
#1
Courtney M Gardner, Claudia K Gunsch
The cultivation and consumption of transgenic crops continues to be a widely debated topic, as the potential ecological impacts are not fully understood. In particular, because antibiotic resistance genes (ARGs) have historically been used as selectable markers in the genetic engineering of transgenic crops, it is important to determine if the genetic constructs found in decomposing transgenic crops persist long enough in the environment and if they can be transferred horizontally to indigenous microorganisms...
February 5, 2017: Chemosphere
https://www.readbyqxmd.com/read/28203403/clinic-application-of-tissue-engineered-bronchus-for-lung-cancer-treatment
#2
Qiang Tan, Ruijun Liu, Xiaoke Chen, Jingxiang Wu, Yinggen Pan, Shun Lu, Walter Weder, Qingquan Luo
BACKGROUND: Delayed revascularization process and substitute infection remain to be key challenges in tissue engineered (TE) airway reconstruction. We propose an "in-vivo bioreactor" design, defined as an implanted TE substitutes perfused with an intra-scaffold medium flow created by an extracorporeal portable pump system for in situ organ regeneration. The perfusate keeps pre-seeded cells alive before revascularization. Meanwhile the antibiotic inside the perfusate controls topical infection...
January 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28198726/community-acquired-pneumonia-requiring-hospitalization-rational-decision-making-and-interpretation-of-guidelines
#3
Douwe F Postma, Cornelis H van Werkhoven, Jan Jelrik Oosterheert
PURPOSE OF REVIEW: This review focuses on the evidence base for guideline recommendations on the diagnosis, the optimal choice, timing and duration of empirical antibiotic therapy, and the use of microbiological tests for patients hospitalized with community-acquired pneumonia (CAP): issues for which guidelines are frequently used as a quick reference. Furthermore, we will discuss possibilities for future research in these topics. RECENT FINDINGS: Many national and international guideline recommendations, even on critical elements of CAP management, are based on low-to-moderate quality evidence...
February 13, 2017: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/28198170/antibacterial-effect-of-sevoflurane-and-isoflurane
#4
M Martínez-Serrano, M Gerónimo-Pardo, A Martínez-Monsalve, M D Crespo-Sánchez
OBJECTIVE: Multidrug resistant bacteria are increasing worldwide and therapeutic options are limited. Some anaesthetics have shown antibacterial activity before. In this study, we have investigated the antibacterial effect of the halogenated anaesthetic agents sevoflurane and isoflurane against a range of resistant pathogens. METHODS: Two experiments were conducted. In the first, bacterial suspensions of both ATCC and resistant strains of Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa were exposed to liquid sevoflurane and isoflurane during 15, 30 and 60 minutes...
February 15, 2017: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
https://www.readbyqxmd.com/read/28196318/common-skin-conditions-in-children-skin-infections
#5
Brian Z Rayala, Dean S Morrell
Skin infections account for a significant subset of dermatologic conditions of childhood. Common cutaneous viral infections in children include warts, molluscum contagiosum, hand-foot-and-mouth disease, and herpes simplex. Although viral infections are self-limited and often only mildly symptomatic, they can cause anxiety, embarrassment, and health care use. Recognition of their common and atypical presentations is necessary to differentiate them from other skin conditions of similar morphology. Impetigo, cellulitis, and abscess comprise the majority of childhood bacterial skin infections and are treated with topical or systemic antibiotics that cover group A Streptococcus and Staphylococcus aureus...
February 2017: FP Essentials
https://www.readbyqxmd.com/read/28192644/perioperative-antibiotics-for-prevention-of-acute-endophthalmitis-after-cataract-surgery
#6
REVIEW
Emily W Gower, Kristina Lindsley, Samantha E Tulenko, Afshan A Nanji, Ilya Leyngold, Peter J McDonnell
BACKGROUND: Endophthalmitis is a severe inflammation of the anterior or posterior (or both) chambers of the eye that may be sterile or associated with infection. It is a potentially vision-threatening complication of cataract surgery. Prophylactic measures for endophthalmitis are targeted against various sources of infection. OBJECTIVES: To evaluate the effects of perioperative antibiotic prophylaxis for endophthalmitis following cataract surgery compared with no prophylaxis or other form of prophylaxis...
February 13, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28188316/rash-on-eyebrows-and-periumbilical-region
#7
Richard P Usatine, Sharon E Jacob
Patch testing data indicate that the 5 most prevalent contact allergens out of more than 3700 that are known are: nickel (14.3% of patients tested), fragrance mix (14%), the topical antibiotic neomycin (11.6%), balsam of Peru (used in some perfumes, toiletries, and pharmaceutical items) (10.4%), and the mercury-based vaccine preservative thimerosal (10.4%).
January 2017: Journal of Family Practice
https://www.readbyqxmd.com/read/28182174/eye-injuries-from-pencil-lead-three-cases
#8
Ceyhun Arıcı, Osman Şevki Arslan, Burcu Görgülü, Rengin Yıldırım, Umut Onur
Corneal stromal and/or penetrating ocular injuries from pencils and pencil lead are more common in childhood and may lead to intraocular infection or severe intraocular sterile inflammatory reaction. Herein we report 3 children with ocular trauma due to pencil lead injuries. The first case had corneal stromal injury caused by a pencil. In the second case, a pencil perforated the cornea and contacted the iris. In the third case, pencil lead perforated both the cornea and iris and reached the vitreous through the lens zonules...
January 2017: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/28182109/acute-truncal-lymphedema-secondary-to-axillary-metastatic-melanoma-presenting-like-cellulitis
#9
Shelley J E Hwang, Benjamin Y Kong, Shaun Chou, Deepal Wakade, Matteo S Carlino, Pablo Fernandez-Penas
There are reported cases of diphencyprone used in treating cutaneous metastases of melanoma. Here, we report a patient with previous primary melanoma on his left back treated with surgical excision and lymphadenectomy, followed by radiotherapy for the recurrent tumor on the primary site. Despite radiotherapy and treatment with dabrafenib and trametinib, in-transit metastases have developed and topical diphencyprone was applied to these metastases. Six weeks later, the patient developed fever and a spreading erythematous tender indurated plaque covering the left side of the body including axillae, back, and flank, clinically suggestive of cellulitis...
2017: Case Reports in Medicine
https://www.readbyqxmd.com/read/28181687/acupuncture-for-acute-hordeolum
#10
REVIEW
Ke Cheng, Andrew Law, Menghu Guo, L Susan Wieland, Xueyong Shen, Lixing Lao
BACKGROUND: Hordeolum is an acute, purulent inflammation of the eyelid margin usually caused by obstructed orifices of the sebaceous glands of the eyelid. The condition, which affects sebaceous glands internally or externally, is common. When the meibomian gland in the tarsal plate is affected, internal hordeolum occurs, while when the glands of Zeis or Moll associated with eyelash follicles are affected, external hordeolum, or stye occurs. The onset of hordeolum is usually self limited, and may resolve in about a week with spontaneous drainage of the abscess...
February 9, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28178053/posterior-fourchette-fissure-resolution-after-injection-of-autologous-adipose-derived-regenerative-cells
#11
Katarina Andjelkov, Zoran Maricic
BACKGROUND: Posterior fourchette fissures can recur and become chronic despite multiple medical and surgical treatments. We report the case of a recurrent posterior fourchette fissure that resolved after subdermal injection with adipose-derived regenerative cells. CASE: A 44-year-old primiparous patient experienced severe dyspareunia for 10 years as a result of a recurrent posterior fourchette fissure that began after a vaginal delivery with episiotomy. She was treated unsuccessfully with topical antibiotics, estrogen, and steroids and ultimately with a perineoplasty at the age of 42 years...
February 6, 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28177597/zero-order-antibiotic-release-from-multilayer-contact-lenses-nonuniform-drug-and-diffusivity-distributions-produce-constant-rate-drug-delivery
#12
Gustavo Guzman, Siamak Shams Es-Haghi, Turgut Nugay, Mukerrem Cakmak
A novel approach to zero-order constant-rate drug delivery from contact lenses is presented. Quasi-Case II non-Fickian transport is achieved by nonuniform drug and diffusivity distributions within three-layer bimodal amphiphilic conetworks (β-APCNs). The center layer is a highly oxygen permeable β-APCN matrix, which contains the drug and exhibits a high drug diffusivity. The outer β-APCN layers contain no-drug and are loaded with vitamin E, which slows diffusion. In contrast to single-layer neat-polymer and vitamin E-loaded films that display first-order "burst" kinetics, it is demonstrated experimentally and by modeling that the combined effect of nonuniform distribution of drug loading and diffusion constants within the three-layer lens maintains low local drug concentration at the lens-fluid interface and yields zero-order drug delivery...
February 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28170093/topical-treatments-for-blepharokeratoconjunctivitis-in-children
#13
REVIEW
Michael O'Gallagher, Catey Bunce, Melanie Hingorani, Frank Larkin, Stephen Tuft, Annegret Dahlmann-Noor
BACKGROUND: Blepharokeratoconjunctivitis (BKC) is a type of inflammation of the surface of the eye and eyelids that involves changes of the eyelids, dysfunction of the meibomian glands, and inflammation of the conjunctiva and cornea. Chronic inflammation of the cornea can lead to scarring, vascularisation and opacity. BKC in children can cause significant symptoms including irritation, watering, photophobia and loss of vision from corneal opacity, refractive error or amblyopia.Treatment of BKC is directed towards modification of meibomian gland disease and the bacterial flora of lid margin and conjunctiva, and control of ocular surface inflammation...
February 7, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28161929/presumed-sterile-endophthalmitis-afer-intravitreal-triamcinolone-kenalog-more-common-and-less-benign-than-we-thought
#14
Angie H C Fong, Carmen K M Chan
PURPOSE: This study aimed to review the incidence and clinical outcome of presumed sterile endophthalmitis after the off-label use of intravitreal Kenalog injections (triamcinolone acetonide with 1.5% benzyl alcohol) and to compare it with the presumed sterile endophthalmitis incidence after intravitreal Kenacort-A (0.99% benzyl alcohol) at our center. DESIGN: This was a single-center, retrospective, consecutive, interventional case series of all patients who underwent intravitreal Kenalog injections at Hong Kong Eye Hospital from November 1, 2009, to July 31, 2012...
January 2017: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/28153622/case-report-of-a-primary-pituitary-abscess-and-systematic-literature-review-of-pituitary-abscess-with-a-focus-on-patient-outcomes
#15
REVIEW
Justice O Agyei, Lindsay J Lipinski, Jody Leonardo
BACKGROUND: Pituitary abscess is a rare but potentially life-threatening condition with an incidence of 0.2-1.1% of operative pituitary lesions. Diagnosis can be challenging, as this disorder shares many similarities with other pituitary lesions in terms of symptomatology and radiographic findings. Most pituitary abscesses are categorized as secondary, arising from pre-existing pituitary lesions or in conjunction with transsphenoidal surgery, sepsis, meningitis, or sinusitis. To date, there have been only a handful of reports of primary pituitary abscess, which occurs without any of the aforementioned risk factors...
January 30, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28151861/shifting-trends-in-microbial-keratitis-following-penetrating-keratoplasty-in-taiwan
#16
Hung-Chi Chen, Chia-Yi Lee, Hung-Yu Lin, David Hui-Kang Ma, Phil Yeong-Fong Chen, Ching-Hsi Hsiao, Hsin-Chiung Lin, Lung-Kun Yeh, Hsin-Yuan Tan
To investigate the clinical and microbiological profiles from microbial keratitis following penetrating keratoplasty (PKP) in a tertiary referral center in Taiwan, the medical records of 648 consecutive patients (648 eyes) undergoing PKP between January 2003 and December 2007 were retrospectively reviewed. Patients who subsequently sustained microbial keratitis were enrolled and analyzed for potential risk factors, clinical manifestations, microbiological profiles, complications, graft survival, and final visual outcome...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28151825/current-trends-in-upper-and-lower-eyelid-blepharoplasty-among-american-society-of-ophthalmic-plastic-and-reconstructive-surgery-members
#17
Andrea L Kossler, Grace L Peng, Donald B Yoo, Babak Azizzadeh, Guy G Massry
PURPOSE: To assess current practice patterns for management of upper and lower eyelid blepharoplasty by active American Society of Ophthalmic Plastic and Reconstructive Surgery members. METHODS: An invitation to participate in a web-based anonymous survey was sent to the active American Society of Ophthalmic Plastic and Reconstructive Surgery membership via email. The survey consists of 34 questions, both multiple choice and free response, regarding upper and lower eyelid blepharoplasty surgery...
February 1, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28145954/intra-articular-vancomycin-powder-eliminates-methicillin-resistant-s-aureus-in-a-rat-model-of-a-contaminated-intra-articular-implant
#18
Adam I Edelstein, Joseph A Weiner, Ralph W Cook, Danielle S Chun, Emily Monroe, Sean M Mitchell, Abhishek Kannan, Wellington K Hsu, S David Stulberg, Erin L Hsu
BACKGROUND: Periprosthetic joint infection following hip and knee arthroplasty leads to poor outcomes and exorbitant costs. Topical vancomycin powder has been shown to decrease infection in many procedures such as spine surgery. The role of vancomycin powder in the setting of total joint arthroplasty remains undefined. Our aim was to evaluate the efficacy of intra-articular vancomycin powder in preventing infection in a rat model of a contaminated intra-articular implant. METHODS: Thirty-two female Sprague-Dawley rats underwent knee arthrotomy and implantation of a femoral intramedullary wire with 1 mm of intra-articular communication...
February 1, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28145848/clinical-practice-guideline-improving-nasal-form-and-function-after-rhinoplasty-executive-summary
#19
Lisa E Ishii, Travis T Tollefson, Gregory J Basura, Richard M Rosenfeld, Peter J Abramson, Scott R Chaiet, Kara S Davis, Karl Doghramji, Edward H Farrior, Sandra A Finestone, Stacey L Ishman, Robert X Murphy, John G Park, Michael Setzen, Deborah J Strike, Sandra A Walsh, Jeremy P Warner, Lorraine C Nnacheta
Objective Rhinoplasty, a surgical procedure that alters the shape or appearance of the nose while preserving or enhancing the nasal airway, ranks among the most commonly performed cosmetic procedures in the United States, with >200,000 procedures reported in 2014. While it is difficult to calculate the exact economic burden incurred by rhinoplasty patients following surgery with or without complications, the average rhinoplasty procedure typically exceeds $4000. The costs incurred due to complications, infections, or revision surgery may include the cost of long-term antibiotics, hospitalization, or lost revenue from hours/days of missed work...
February 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28145823/clinical-practice-guideline-improving-nasal-form-and-function-after-rhinoplasty
#20
Lisa E Ishii, Travis T Tollefson, Gregory J Basura, Richard M Rosenfeld, Peter J Abramson, Scott R Chaiet, Kara S Davis, Karl Doghramji, Edward H Farrior, Sandra A Finestone, Stacey L Ishman, Robert X Murphy, John G Park, Michael Setzen, Deborah J Strike, Sandra A Walsh, Jeremy P Warner, Lorraine C Nnacheta
Objective Rhinoplasty, a surgical procedure that alters the shape or appearance of the nose while preserving or enhancing the nasal airway, ranks among the most commonly performed cosmetic procedures in the United States, with >200,000 procedures reported in 2014. While it is difficult to calculate the exact economic burden incurred by rhinoplasty patients following surgery with or without complications, the average rhinoplasty procedure typically exceeds $4000. The costs incurred due to complications, infections, or revision surgery may include the cost of long-term antibiotics, hospitalization, or lost revenue from hours/days of missed work...
February 2017: Otolaryngology—Head and Neck Surgery
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