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https://www.readbyqxmd.com/read/28432730/assessment-of-voluntary-deep-inspiration-breath-hold-with-cine-imaging-for-breast-radiotherapy
#1
Reuben Patrick Estoesta, Lani Attwood, Diana Naehrig, Elizabeth Claridge-Mackonis, David Odgers, Darren Martin, Melissa Pham, Joanne Toohey, Susan Carroll
Deep Inspiration Breath-Hold (DIBH) techniques for breast cancer radiation therapy (RT) have reduced cardiac dose compared to Free Breathing (FB). Recently, a voluntary deep inspiration breath-hold (vDIBH) technique was established using in-room lasers and skin tattoos to monitor breath-hold. An in-house quality assessment of positional reproducibility during RT delivery with vDIBH in patients with left-sided breast cancer was evaluated. The electronic portal imaging device (EPID) was used in cinematographic (CINE) mode to capture a sequence of images during beam delivery...
April 22, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28420906/comparison-of-ultrasound-and-ultrasound-plus-nerve-stimulator-guidance-axillary-plexus-block
#2
Gokhan Demirelli, Semih Baskan, Isil Karabeyoglu, Ismail Aytac, Dilsen Hatice Ornek, Alper Erdogmus, Mustafa Baydar
OBJECTIVE: To evaluate the characteristics of axillary plexus blockade applied using ultrasound only and using ultrasound together with nerve stimulator in patients undergoing planned forearm, wrist or hand surgery. METHODS: This randomised, prospective, double-blinded, single-centre study was conducted at Ankara Numune Training and Research Hospital, Ankara, Turkey, from November 2014 to August 2015, and comprised patients undergoing forearm, wrist or hand surgery...
April 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28418588/intracellular-ros-levels-determine-the-apoptotic-potential-of-keratinocyte-by-quantum-dot-via-blockade-of-akt-phosphorylation
#3
Eun Young Lee, Hyun Cheol Bae, Hana Lee, Yeon Sue Jang, Yoon-Hee Park, Jin Hee Kim, Woo-In Ryu, Byeong Hyeok Choi, Ji Hyun Kim, Sang Hoon Jeong, Sang Wook Son
Quantum dots (QDs) have shown great potential for biomedical use in a broad range including diagnostic agents. However, the regulatory mechanism of dermal toxicity is poorly understood. In this study, we investigated how QDs-induced apoptosis is regulated in human keratinocytes. We also examined the effect of carboxylic acid coated QDs (QD 565 and QD 655) on reactive oxygen species (ROS) production and apoptosis-related cellular signaling. The viability of keratinocyte was inhibited by two types of QDs in a concentration-dependent manner...
April 18, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28414163/droplet-digital-pcr-ddpcr-vs-quantitative-real-time-pcr-qpcr-approach-for-detection-and-quantification-of-merkel-cell-polyomavirus-mcpyv-dna-in-formalin-fixed-paraffin-embedded-ffpe-cutaneous-biopsies
#4
Rosaria Arvia, Mauro Sollai, Federica Pierucci, Carmelo Urso, Daniela Massi, Krystyna Zakrzewska
BACKGROUND: Merkel cell polyomavirus (MCPyV) is associated with Merkel cell carcinoma and high viral load in the skin was proposed as a risk factor for the occurrence of this tumour. MCPyV DNA was detected, with lower frequency, in different skin cancers but since the viral load was usually low, the real prevalence of viral DNA could be underestimated. OBJECTIVE: To evaluate the performance of two assays (qPCR and ddPCR) for MCPyV detection and quantification in formalin fixed paraffin embedded (FFPE) tissue samples...
April 14, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28409557/randomised-controlled-trial-of-silk-therapeutic-garments-for-the-management-of-atopic-eczema-in-children-the-clothes-trial
#5
Kim S Thomas, Lucy E Bradshaw, Tracey H Sach, Fiona Cowdell, Jonathan M Batchelor, Sandra Lawton, Eleanor F Harrison, Rachel H Haines, Amina Ahmed, Taraneh Dean, Nigel P Burrows, Ian Pollock, Hannah K Buckley, Hywel C Williams, Joanne Llewellyn, Clare Crang, Jane D Grundy, Juliet Guiness, Andrew Gribbin, Eileen V Wake, Eleanor J Mitchell, Sara J Brown, Alan A Montgomery
BACKGROUND: Atopic eczema (AE) is a chronic, itchy, inflammatory skin condition that affects the quality of life of children and their families. The role of specialist clothing in the management of AE is poorly understood. OBJECTIVES: To assess the effectiveness and cost-effectiveness of silk garments for the management of AE in children with moderate to severe disease. DESIGN: Parallel-group, observer-blind, randomised controlled trial of 6 months' duration, followed by a 2-month observational period...
April 2017: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/28407433/spatiotemporal-evolution-of-the-wound-repairing-process-in-a-3d-human-dermis-equivalent
#6
Bernadette Lombardi, Costantino Casale, Giorgia Imparato, Francesco Urciuolo, Paolo Antonio Netti
Several skin equivalent models have been developed to investigate in vitro the re-epithelialization process occurring during wound healing. Although these models recapitulate closure dynamics of epithelial cells, they fail to capture how a wounded connective tissue rebuilds its 3D architecture until the evolution in a scar. Here, the in vitro tissue repair dynamics of a connective tissue is replicated by using a 3D human dermis equivalent (3D-HDE) model composed of fibroblasts embedded in their own extracellular matrix (ECM)...
April 13, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28407431/in-vitro-studies-evaluating-the-effects-of-biofilms-on-wound-healing-cells-a-review
#7
REVIEW
Kelly R Kirker, Garth A James
Chronic wounds are characterized as wounds that have failed to proceed through the well-orchestrated healing process and have remained open for months to years. Open wounds are at risk for colonization by opportunistic pathogens. Bacteria that colonize the open wound bed form surface-attached, multicellular communities called biofilms, and chronic wound biofilms can contain a diverse microbiota. Investigators are just beginning to elucidate the role of biofilms in chronic wound pathogenesis, and have simplified the complex wound environment using in vitro models to obtain a fundamental understanding of the impact of biofilms on wound-healing cell types...
April 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/28404634/mucosal-igm-antibody-with-d-mannose-affinity-in-fugu-takifugu-rubripes-is-utilized-by-a-monogenean-parasite-heterobothrium-okamotoi-for-host-recognition
#8
Kento Igarashi, Ryohei Matsunaga, Sachi Hirakawa, Sho Hosoya, Hiroaki Suetake, Kiyoshi Kikuchi, Yuzuru Suzuki, Osamu Nakamura, Toshiaki Miyadai, Satoshi Tasumi, Shigeyuki Tsutsui
How parasites recognize their definitive hosts is a mystery; however, parasitism is reportedly initiated by recognition of certain molecules on host surfaces. Fish ectoparasites make initial contact with their hosts at body surfaces, such as skin and gills, which are covered with mucosa that are similar to those of mammalian guts. Fish are among the most primitive vertebrates with immune systems that are equivalent to those in mammals, and they produce and secrete IgM into mucus. In this study, we showed that the monogenean parasite Heterobothrium okamotoi utilizes IgM to recognize its host, fugu Takifugu rubripes Oncomiracidia are infective larvae of H...
April 12, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28403275/a-difference-in-cutaneous-pigmentary-response-to-led-versus-halogen-incandescent-visible-light-a-case-report-from-a-single-center-investigational-clinical-trial-determining-a-minimal-pigmentary-visible-light-dose
#9
Teo Soleymani, Nicholas A Soter, Lorcan M Folan, Nada Elbuluk, Uchenna R Okereke, David E Cohen
<p>BACKGROUND: While most of the attention regarding skin pigmentation has focused on the effects on ultraviolet radiation, the cutaneous effects of visible light (400 to 700nm) are rarely reported. In this report, we describe a case of painful erythema and induration that resulted from direct irradiation of UV-naïve skin with visible LED light in a patient with Fitzpatrick type II skin.</p> <p>METHODS AND RESULTS: A 24-year-old healthy woman with Fitzpatrick type II skin presented to our department to participate in a clinical study...
April 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28399392/the-use-of-acellular-urinary-bladder-matrix-as-coverage-for-fasciocutaneous-free-flap-donor-sites-an-alternative-to-traditional-grafting-procedures
#10
James C Melville, Nicholas A Bennetts, Lauro Tijerina, Jonathan W Shum
PURPOSE: The purpose of this review is to 1) evaluate our early experience with urinary bladder matrix as a dressing for the management of complex wounds subsequent to fasciocutaneous or osteocutaneous vascularized tissue harvests, 2) assess coverage of exposed tendons and the duration of granulation and epithelial coverage, and 3) assess esthetic and functional outcomes compared with traditional means for the management of vascularized tissue harvest sites. PATIENTS AND METHODS: This prospective study consisted of 8 consecutive patients in whom a substantial cutaneous component was harvested as part of a vascularized tissue reconstruction, which did not permit for primary closure (n = 7) or had skin graft failure (exposed tendon) that required additional treatment (n = 1)...
March 18, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28399154/silk-garments-plus-standard-care-compared-with-standard-care-for-treating-eczema-in-children-a-randomised-controlled-observer-blind-pragmatic-trial-clothes-trial
#11
Kim S Thomas, Lucy E Bradshaw, Tracey H Sach, Jonathan M Batchelor, Sandra Lawton, Eleanor F Harrison, Rachel H Haines, Amina Ahmed, Hywel C Williams, Taraneh Dean, Nigel P Burrows, Ian Pollock, Joanne Llewellyn, Clare Crang, Jane D Grundy, Juliet Guiness, Andrew Gribbin, Eleanor J Mitchell, Fiona Cowdell, Sara J Brown, Alan A Montgomery
BACKGROUND: The role of clothing in the management of eczema (also called atopic dermatitis or atopic eczema) is poorly understood. This trial evaluated the effectiveness and cost-effectiveness of silk garments (in addition to standard care) for the management of eczema in children with moderate to severe disease. METHODS AND FINDINGS: This was a parallel-group, randomised, controlled, observer-blind trial. Children aged 1 to 15 y with moderate to severe eczema were recruited from secondary care and the community at five UK medical centres...
April 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28395915/local-failure-and-acute-radiodermatological-toxicity-in-patients-undergoing-radiation-therapy-with-and-without-post-mastectomy-chest-wall-bolus-is-bolus-ever-necessary
#12
Stephen Abel, Paul Renz, Mark Trombetta, Michael Cowher, E Day Werts, Thomas B Julian, Rodney Wegner
PURPOSE: Postmastectomy chest wall radiation therapy has historically used bolus to increase dose at the skin surface. Despite the theoretical benefits of bolus, the clinical implications of locoregional tumor control, cosmesis, and the incidence of radiodermatitis are less well characterized. We hypothesized that treatment in the presence or absence of bolus results in equivalent chest wall recurrence rates, but its presence results in more severe acute dermatologic toxicity. METHODS AND MATERIALS: Locally advanced breast cancer patients undergoing chest wall radiation therapy were retrospectively reviewed from 2005 to 2015 (n = 106; 53 with bolus, 53 without)...
October 30, 2016: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28390726/effects-of-preweaning-nutrient-intake-in-the-developing-mammary-parenchymal-tissue
#13
F Soberon, M E Van Amburgh
Historically, mammary gland growth has been considered isometric the first 2 mo of life and then allometric until peripuberty. However, recent work indicated that the mammary gland might be responsive to nutrient intake preweaning. The objectives of this study were to describe the effects of nutrient intake preweaning on mammary gland development and to investigate cell specific proliferation during this phase of development. Twelve dairy heifer calves were fed either a fixed amount of milk replacer (MR; control, n = 6) or an amount of MR adjusted for BW (enhanced, n = 6)...
April 5, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28381726/preparation-and-evaluation-of-modified-mohs-paste-without-starch
#14
Maho Taguchi, Masato Shigeyama, Nahomi Ito, Noriko Ogawa, Chisato Takahashi, Mikio Murata, Nobumitsu Hanioka, Hiromitsu Yamamoto, Hitomi Teramachi
 Mohs paste is an external preparation containing zinc hydrochloride and zinc oxide starch as the main ingredient, and it is used for the palliative treatment of patients with surgically untreatable malignant tumors. However, it has problems, such as changes in hardness and viscoelasticity with time and liquefaction by exudate. To overcome these problems, we modified the formulation of Mohs paste by excluding starch, which is the cause of physical changes, and investigated the base. In the modified Mohs paste using the macrogol ointment for the base, no marked change with time was noted in the hardness, malleability, or elongation property, and the water-absorbing properties were equivalent to those of Mohs paste immediately after preparation...
2017: Yakugaku Zasshi: Journal of the Pharmaceutical Society of Japan
https://www.readbyqxmd.com/read/28379603/the-ginsenoside-derivative-20-s-protopanaxadiol-inhibits-solar-ultraviolet-light-induced-matrix-metalloproteinase-1-expression
#15
Eungmin Han, Tae-Gyu Lim, Jong-Eun Kim, Hee Yang, Deok-Kun Oh, Jung Han Yoon Park, Dalius Yoon Park, Hee Jung Kim, Young Kyoung Rhee, Ki Won Lee
Ginsenosides are major pharmacologically active compounds present in ginseng (Panax ginseng). Among the ginsenosides, 20-O-β-D-glucopyranosyl-20(S)-protopanaxadiol (GPPD) and ginsenoside Rb1 (Rb1) have previously been reported to exhibit anti-wrinkle effects. In this study, 20(S)-protopanaxadiol (20(S)-PPD), an aglycone derivative of the Rb1 metabolite was investigated for its anti-wrinkle benefit and compared to GPPD and Rb1. The anti-wrinkle effect of 20(S)-PPD during solar UV light was investigated using a human skin equivalent model and human keratinocytes...
April 5, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28377574/tslp-is-a-direct-trigger-for-t-cell-migration-in-filaggrin-deficient-skin-equivalents
#16
Leonie Wallmeyer, Kristina Dietert, Michaela Sochorová, Achim D Gruber, Burkhard Kleuser, Kateřina Vávrová, Sarah Hedtrich
Mutations in the gene encoding for filaggrin (FLG) are major predisposing factors for atopic dermatitis (AD). Besides genetic predisposition, immunological dysregulations considerably contribute to its pathophysiology. For example, thymic stromal lymphopoietin (TSLP) is highly expressed in lesional atopic skin and significantly contributes to the pathogenesis of AD by activating dendritic cells that then initiate downstream effects on, for example, T cells. However, little is known about the direct interplay between TSLP, filaggrin-deficient skin and other immune cells such as T lymphocytes...
April 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28371384/unlocking-the-story-in-the-swab-a-new-genotyping-assay-for-the-amphibian-chytrid-fungus-batrachochytrium-dendrobatidis
#17
Allison Q Byrne, Andrew P Rothstein, Thomas J Poorten, Jesse Erens, Matthew L Settles, Erica Bree Rosenblum
One of the most devastating emerging pathogens of wildlife is the chytrid fungus, Batrachochytrium dendrobatidis (Bd), which affects hundreds of amphibian species around the world. Genomic data from pure Bd cultures has advanced our understanding of Bd phylogenetics, genomic architecture, and mechanisms of virulence. However pure cultures are laborious to obtain and whole genome sequencing is comparatively expensive, so relatively few isolates have been genetically characterized. Thus we still know little about the genetic diversity of Bd in natural systems...
April 2, 2017: Molecular Ecology Resources
https://www.readbyqxmd.com/read/28360090/testosterone-prevents-cutaneous-ischemia-and-necrosis-in-males-through-complementary-estrogenic-and-androgenic-actions
#18
Caroline Chenu, Marine Adlanmerini, Frederic Boudou, Elodie Chantalat, Anne-Laure Guihot, Celine Toutain, Isabelle Raymond-Letron, Patricia Vicendo, Alain-Pierre Gadeau, Daniel Henrion, Jean-Francois Arnal, Francoise Lenfant
OBJECTIVE: Chronic nonhealing wounds are a substantial medical concern and are associated with morbidity and mortality; thus, new treatment strategies are required. The first step toward personalized/precision medicine in this field is probably in taking sex differences into account. Impaired wound healing is augmented by ischemia, and we previously demonstrated that 17β-estradiol exerts a major preventive effect against ischemia-induced skin flap necrosis in female mice. However, the equivalent effects of testosterone in male mice have not yet been reported...
March 30, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28350869/in-vitro-skin-models-to-study-epithelial-regeneration-from-the-hair-follicle
#19
Nkemcho Ojeh, Baki Akgül, Marjana Tomic-Canic, Mike Philpott, Harshad Navsaria
The development of dermal equivalents (DEs) for the treatment of burns has contributed toward efficient wound closure. A collagen-glycosaminoglycan DE (C-GAG) grafted with hair follicles converted a full-thickness wound to partial-thickness resulting in complete wound closure and restored hair. In this study we compared the ability of both intact pilosebaceous units (PSU) or truncated hair follicles (THF) to regenerate a multilayered epidermis in vitro when implanted into de-epidermalized dermis (DED) or C-GAG with the epidermis generated in vivo using C-CAG...
2017: PloS One
https://www.readbyqxmd.com/read/28346390/the-effect-and-mechanism-of-transdermal-penetration-enhancement-of-fu-s-cupping-therapy-new-physical-penetration-technology-for-transdermal-administration-with-traditional-chinese-medicine-tcm-characteristics
#20
Wei-Jie Xie, Yong-Ping Zhang, Jian Xu, Xiao-Bo Sun, Fang-Fang Yang
BACKGROUND: In this paper, a new type of physical penetration technology for transdermal administration with traditional Chinese medicine (TCM) characteristics is presented. Fu's cupping therapy (FCT), was established and studied using in vitro and in vivo experiments and the penetration effect and mechanism of FCT physical penetration technology was preliminarily discussed. METHODS: With 1-(4-chlorobenzoyl)-5-methoxy-2-methylindole-3-ylacetic acid (indomethacin, IM) as a model drug, the establishment of high, medium, and low references was completed for the chemical permeation system via in vitro transdermal tests...
March 27, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
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