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Total skin electron

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https://www.readbyqxmd.com/read/28297286/the-dose-penumbra-of-a-custom-made-shield-used-in-hemibody-skin-electron-irradiation
#1
Charlotte I Rivers, Ismail AlDahlawi, Iris Z Wang, Anurag K Singh, Matthew B Podgorsak
We report our technique for hemibody skin electron irradiation with a custom-made plywood shield. The technique is similar to our clinical total skin electron irradiation (TSEI), performed with a six-pair dual field (Stanford technique) at an extended source-to-skin distance (SSD) of 377 cm, with the addition of a plywood shield placed at 50 cm from the patient. The shield is made of three layers of standard 5/8" thick plywood (total thickness of 4.75 cm) that are clamped securely on an adjustable-height stand...
November 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28296317/validation-of-total-skin-electron-irradiation-tsei-technique-dosimetry-data-by-monte-carlo-simulation
#2
Alexander Nevelsky, Egor Borzov, Shahar Daniel, Raquel Bar-Deroma
Total skin electron irradiation (TSEI) is a complex technique which requires many nonstandard measurements and dosimetric procedures. The purpose of this work was to validate measured dosimetry data by Monte Carlo (MC) simulations using EGSnrc-based codes (BEAMnrc and DOSXYZnrc). Our MC simulations consisted of two major steps. In the first step, the incident electron beam parameters (energy spectrum, FWHM, mean angular spread) were adjusted to match the measured data (PDD and profile) at SSD=100 cm for an open field...
July 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28293466/cadasil-ultrastructural-insights-into-the-morphology-of-granular-osmiophilic-material
#3
Teresa Lorenzi, Michele Ragno, Francesca Paolinelli, Clara Castellucci, Marina Scarpelli, Manrico Morroni
INTRODUCTION: Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is a hereditary systemic vascular disorder. Granular osmiophilic material (GOM) is its ultrastructural marker. We reviewed tissue biopsies from CADASIL patients to establish whether ultrastructural observations help clarify the pathogenic mechanism of CADASIL. Given the resemblance of the GOM deposits to the immunoglobulin deposits seen in glomerulonephritis and focal segmental glomerulosclerosis (FSGS), their morphologies were investigated and compared...
March 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28291915/room-scatter-effects-in-total-skin-electron-irradiation-monte-carlo-simulation-study
#4
Alexander Nevelsky, Egor Borzov, Shahar Daniel, Raquel Bar-Deroma
PURPOSE: Total Skin Electron Irradiation (TSEI) is a complex technique which usually involves the use of large electron fields and the dual-field approach. In this situation, many electrons scattered from the treatment room floor are produced. However, no investigations of the effect of scattered electrons in TSEI treatments have been reported. The purpose of this work was to study the contribution of floor scattered electrons to skin dose during TSEI treatment using Monte Carlo (MC) simulations...
January 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28283894/treatment-of-porokeratosis-a-systematic-review
#5
REVIEW
Till Weidner, Tanja Illing, Diana Miguel, Peter Elsner
BACKGROUND: Porokeratosis (PK) is a rare skin disease of unknown etiology. It consists of a keratinization disorder, which may appear in several clinical forms and can undergo malignant transformation. The histopathological hallmark of PK is the cornoid lamella. While many topical, systemic, and surgical treatment modalities for PK have been described, no randomized controlled trials have been performed yet. Because of a lack of treatment standards for PK, European and international guidelines cannot be created...
March 10, 2017: American Journal of Clinical Dermatology
https://www.readbyqxmd.com/read/28265293/external-use-of-propolis-for-oral-skin-and-genital-diseases-a-systematic-review-and-meta-analysis
#6
REVIEW
Soo-Hyun Sung, Gwang-Ho Choi, Nam-Woo Lee, Byung-Cheul Shin
Objective. The aim of this review is to provide the available evidence on the external use of propolis (EUP) for oral, skin, and genital diseases. Method. We searched twelve electronic databases for relevant studies up to June 2016. Randomized clinical trials (RCTs) were included and analysed. Results. Of the 286 articles identified, twelve potentially relevant studies met our inclusion criteria. A meta-analysis of two studies on recurrent oral aphthae (ROA) indicated that there were no significant differences in total effective rate (TER) for pain disappearance between EUP and placebo groups (RR = 1...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28263891/skin-contamination-as-pathway-for-nicotine-intoxication-in-vapers
#7
Giovanni Maina, Carlotta Castagnoli, Giordana Ghione, Valter Passini, Gianpiero Adami, Francesca Larese Filon, Matteo Crosera
Growing warnings on health effects related to electronic cigarettes have met inconclusive findings at present. This study analyzed the in vitro percutaneous absorption of nicotine resulting by skin contamination with two e-liquids (refill 1 and 2) containing nicotine at 1.8%. Donor chambers of 6 Franz cells for each refill liquid were filled with 1mL of nicotine e-liquid for 24h; at selected intervals, 1.5mL of the receptor solutions were collected for nicotine concentration analysis by mean gas chromatography-mass spectrometry (LOD: 0...
March 2, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28259941/consumption-of-policosanol-enhances-hdl-functionality-via-cetp-inhibition-and-reduces-blood-pressure-and-visceral-fat-in-young-and-middle-aged-subjects
#8
Jae-Yong Kim, Seong-Min Kim, Suk-Jeong Kim, Eun-Young Lee, Jae-Ryong Kim, Kyung-Hyun Cho
It is well-known that policosanol can improve serum lipid profiles, although the physiological mechanism is still unknown. Here, we investigated functional and structural changes in lipoproteins after consumption of policosanol. To investigate the physiological effect of policosanol, we analyzed serum parameters in young non-smoker (YN; n=7, 24.0±2.4 years), young smoker (YS; n=7, 26.3±1.5 years), and middle-aged subjects (MN; n=11, 52.5±9.8 years) who consumed policosanol daily (10 mg/day) for 8 weeks...
February 24, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28245835/the-effectiveness-of-a-skin-care-program-for-the-prevention-of-contact-dermatitis-in-health-care-workers-the-healthy-hands-project-study-protocol-for-a-cluster-randomized-controlled-trial
#9
Maryam Soltanipoor, Sanja Kezic, Judith K Sluiter, Thomas Rustemeyer
BACKGROUND: Health care workers (HCW) are at high risk for developing occupational hand dermatitis (HD) due to frequent exposure to 'wet work'. Amongst HCWs, nurses are at highest risk, with an estimated point prevalence of HD ranging between 12 and 30%. The burden of disease is high with chronicity, sick leave, risk of unemployment and impaired quality of life. Despite evidence from the medical literature on the risk factors and the importance of skin care in the prevention of HD, in practice, compliance to skin care protocols are below 30%...
February 28, 2017: Trials
https://www.readbyqxmd.com/read/28243491/pityriasis-lichenoides-et-varioliformis-acuta-in-skin-of-color-new-observations-by-dermoscopy
#10
Balachandra S Ankad, Savitha L Beergouder
BACKGROUND: Pityriasis lichenoides is an uncommon skin disease that presents in three different forms: pityriasis lichenoides et varioliformis acuta (PLEVA), pityriasis lichenoides chronica (PLC) and febrile ulceronecrotic-Mucha-Habermann disease. These represent a spectrum of a disease. PLEVA presents as skin eruption of multiple, small, red papules that develop into polymorphic lesions with periods of varying remissions, as well as possible sequels of hyper/hypopigmentation and varicella-like scars...
January 2017: Dermatology Practical & Conceptual
https://www.readbyqxmd.com/read/28241280/pediatric-contact-dermatitis-registry-data-on-contact-allergy-in-children-with-atopic-dermatitis
#11
Sharon E Jacob, Maria McGowan, Nanette B Silverberg, Janice L Pelletier, Luz Fonacier, Nico Mousdicas, Doug Powell, Andrew Scheman, Alina Goldenberg
Importance: Atopic dermatitis (AD) and allergic contact dermatitis (ACD) have a dynamic relationship not yet fully understood. Investigation has been limited thus far by a paucity of data on the overlap of these disorders in pediatric patients. Objective: To use data from the Pediatric Contact Dermatitis Registry to elucidate the associations and sensitizations among patients with concomitant AD and ACD. Design, Setting, and Participants: This retrospective case review examined 1142 patch test cases of children younger than 18 years, who were registered between January 1, 2015, and December 31, 2015, by 84 health care providers (physicians, nurse practitioners, physician assistants) from across the United States...
February 22, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28228429/two-faces-of-gamma-delta-mycosis-fungoides-before-and-after-renal-transplantation
#12
Knut Erich Prillinger, Franz Trautinger, Melitta Kitzwögerer, Johanna Eder
We describe a patient with a 30-year history of mycosis fungoides (MF) and renal transplantation performed 3 years before he presented with an ulcerated tumour in the lumbosacral area. Biopsy revealed a lymphatic infiltrate of medium-sized, pleomorphic T cells expressing the gamma-delta T-cell receptor. Radiological staging and bone marrow biopsy revealed no extracutaneous involvement. Despite reduction in systemic immunosuppressants, total skin electron beam radiotherapy and systemic chemotherapy, the disease followed a highly aggressive course and the patient died 31 years after initial diagnosis of MF...
February 22, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28222994/palliative-care-and-palliative-radiation-therapy-education-in-radiation-oncology-a-survey-of-us-radiation-oncology-program-directors
#13
Randy L Wei, Lauren E Colbert, Joshua Jones, Margarita Racsa, Gabrielle Kane, Steve Lutz, Neha Vapiwala, Kavita V Dharmarajan
PURPOSE: The purpose of this study was to assess the state of palliative and supportive care (PSC) and palliative radiation therapy (RT) educational curricula in radiation oncology residency programs in the United States. METHODS AND MATERIALS: We surveyed 87 program directors of radiation oncology residency programs in the United States between September 2015 and November 2015. An electronic survey on PSC and palliative RT education during residency was sent to all program directors...
December 1, 2016: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28208630/cocoa-and-grape-seed-byproducts-as-a-source-of-antioxidant-and-anti-inflammatory-proanthocyanidins
#14
María De La Luz Cádiz-Gurrea, Isabel Borrás-Linares, Jesús Lozano-Sánchez, Jorge Joven, Salvador Fernández-Arroyo, Antonio Segura-Carretero
Phenolic compounds, which are secondary plant metabolites, are considered an integral part of the human diet. Physiological properties of dietary polyphenols have come to the attention in recent years. Especially, proanthocyanidins (ranging from dimers to decamers) have demonstrated potential interactions with biological systems, such as antiviral, antibacterial, molluscicidal, enzyme-inhibiting, antioxidant, and radical-scavenging properties. Agroindustry produces a considerable amount of phenolic-rich sources, and the ability of polyphenolic structures to interacts with other molecules in living organisms confers their beneficial properties...
February 10, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28191804/does-alternative-and-traditional-wasam-local-cautery-therapy-facilitate-an-early-and-more-extensive-locoregional-metastasis-of-breast-cancer
#15
(no author information available yet)
INTRODUCTION: A large heterogeneous group of unproven remedies exist to treat cancer in both developed and developing countries. Some of these remedies often do more harm than good to the patients. The traditional medicine is the sum total of the knowledge, skills, and practices based on the theories, beliefs, and experiences indigenous to different cultures. The traditional medicine in Oman is based on herbal treatment and skin treatment (massage, Cupping and skin burn "cautery" treatment-known as Wasam or Kaiy)...
September 2016: Gulf Journal of Oncology
https://www.readbyqxmd.com/read/28177974/optimizing-radiotherapy-for-keloids-a-meta-analysis-systematic-review-comparing-recurrence-rates-between-different-radiation-modalities
#16
Peter Mankowski, Jonathan Kanevsky, Jared Tomlinson, Alina Dyachenko, Mario Luc
BACKGROUND: The high recurrence rate of keloids has lead to the use of multiple treatment adjuncts to improve cosmetic outcomes after surgery. To date, there has been no single, standardized modality agreed upon to produce the best results. The purpose of this study was to review the radiation-based treatments (brachytherapy, electron beam and X-ray) used for keloid management and compare their outcomes. METHODS: A literature review was performed from 1942 to October 2014 using the databases: PubMed database of the National Center of Biotechnology Information, MEDLINE, Biosis, Embase, Google scholar, and Cochrane database...
February 8, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28133821/total-skin-electron-therapy-as-treatment-for-epitheliotropic-lymphoma-in-a-dog
#17
Domenico Santoro, Lyndsay Kubicek, Bo Lu, William Craft, Julia Conway
BACKGROUND: Mycosis fungoides (MF) is an uncommon cutaneous neoplasm in dogs. Treatment options are limited. Total skin electron therapy (TSET) has been suggested as a possible therapy for canine MF. OBJECTIVE: To describe the use of TSET as palliative treatment for MF in a dog. RESULTS: An adult dog, previously diagnosed with nonepidermolytic ichthyosis, was presented with generalized erythroderma, alopecia and erosions. Histopathology revealed a densely cellular, well-demarcated, unencapsulated infiltrate extending from the epidermis to the mid-dermis compatible with MF...
January 29, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28133514/anti-melanogenic-effect-of-oenothera-laciniata-methanol-extract-in-melan-a-cells
#18
Su Eun Kim, Chae Myoung Lee, Young Chul Kim
We evaluated the antioxidant activity and anti-melanogenic effects of Oenothera laciniata methanol extract (OLME) in vitro by using melan-a cells. The total polyphenol and flavonoid content of OLME was 66.3 and 19.0 mg/g, respectively. The electron-donating ability, 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical-scavenging activity, and superoxide dismutase (SOD)-like activity of OLME (500 μg/mL) were 94.5%, 95.6%, and 63.6%, respectively. OLME and arbutin treatment at 50 μg/mL significantly decreased melanin content by 35...
January 2017: Toxicological Research
https://www.readbyqxmd.com/read/28132406/recommendations-for-treatment-in-folliculotropic-mycosis-fungoides-report-of-the-dutch-cutaneous-lymphoma-group
#19
S van Santen, R van Doorn, K J Neelis, L A Daniëls, B Horváth, M S Bruijn, C J G Sanders, M M van Rossum, E R M de Haas, J C J M Veraart, M W Bekkenk, M H Vermeer, R Willemze
BACKGROUND: Folliculotropic mycosis fungoides (FMF) is an aggressive variant of mycosis fungoides (MF) and generally less responsive to standard skin-directed therapies (SDTs). Recent studies distinguished an indolent (early-stage FMF) and a more aggressive (advanced-stage FMF) subgroup. The optimal treatment for both subgroups needs still to be defined. OBJECTIVES: Evaluation of initial treatment results in patients with early- and advanced-stage FMF. METHODS: 203 Patients (84 early-stage, 102 advanced-stage, 17 extracutaneous FMF), included in the Dutch Cutaneous Lymphoma Registry between 1985 and 2014 were studied...
January 28, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28114648/patient-provider-and-combined-interventions-for-managing-osteoarthritis-in-primary-care-a-cluster-randomized-trial
#20
Kelli D Allen, Eugene Z Oddone, Cynthia J Coffman, Amy S Jeffreys, Hayden B Bosworth, Ranee Chatterjee, Jennifer McDuffie, Jennifer L Strauss, William S Yancy, Santanu K Datta, Leonor Corsino, Rowena J Dolor
Background: A single-site study showed that a combined patient and provider intervention improved outcomes for patients with knee osteoarthritis, but it did not assess separate effects of the interventions. Objective: To examine whether patient-based, provider-based, and patient-provider interventions improve osteoarthritis outcomes. Design: Cluster randomized trial with assignment to patient, provider, and patient-provider interventions or usual care...
March 21, 2017: Annals of Internal Medicine
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