keyword
MENU ▼
Read by QxMD icon Read
search

Skin to skin contact

keyword
https://www.readbyqxmd.com/read/28433392/quantifying-rates-of-cell-migration-and-cell-proliferation-in-co-culture-barrier-assays-reveals-how-skin-and-melanoma-cells-interact-during-melanoma-spreading-and-invasion
#1
Parvathi Haridas, Catherine J Penington, Jacqui A McGovern, D L Sean McElwain, Matthew J Simpson
Malignant spreading involves the migration of cancer cells amongst other native cell types. For example, in vivo melanoma invasion involves individual melanoma cells migrating through native skin, which is composed of several distinct subpopulations of cells. Here, we aim to quantify how interactions between melanoma and fibroblast cells affect the collective spreading of a heterogeneous population of these cells in vitro. We perform a suite of circular barrier assays that includes: (i) monoculture assays with fibroblast cells; (ii) monoculture assays with SK-MEL-28 melanoma cells; and (iii) a series of co-culture assays initiated with three different ratios of SK-MEL-28 melanoma cells and fibroblast cells...
April 19, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28431925/analysis-of-pm2-5-induced-cytotoxicity-in-human-hacat-cells-based-on-a-microfluidic-system
#2
Yuxiao Zhang, Lulu Zheng, Jiang Tuo, Qi Liu, Xinlian Zhang, Zhixuan Xu, Sixiu Liu, Guodong Sui
Human exposure to PM2.5 causes several adverse health effects. Skin is the first barrier against harmful environmental substances and can has direct contact with PM2.5, but there is no study about PM2.5-induced cytotoxicity in human skin cells on the molecular level partially due to the shortcomings of traditional research methods. In present study, we established a microfluidic system including a cell culture chip integrated with a high-throughput protein microarray chip to investigate the mechanism of PM2...
April 18, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28430667/investigating-point-to-point-emissivity-variation-of-wounded-tissue
#3
Ellen Keenan, Georgina Gethin, Louisa Flynn, David Watterson, Gerard O'Connor
Infrared cameras are becoming increasingly popular in clinical applications as they allow fast, non-contact temperature measurements. As abnormal heat distribution can indicate illness, infrared cameras have been applied in the prediction, diagnosis and monitoring of conditions (Lahiri, Bagavathiappan, Jayakumar, & Philip, 2012). Current practices, however, often overlook the importance of emissivity when taking thermal measurements. The consensus is that human skin has an emissivity of 0.98 (Soerensen et al...
April 21, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28430323/povidone-iodine-3-minute-exposure-time-is-viable-in-preparation-for-cataract-surgery
#4
Chu Luan Nguyen, Lawrence J Oh, Eugene Wong, Ian C Francis
PURPOSE: Povidone-iodine (PI) is widely used to reduce the preoperative conjunctival bacterial load. This study aimed to evaluate the employment of PI 10% in an attempt to sterilize the ocular surface prior to cataract surgery, and to show that PI could be left in contact for 3 minutes. The viability of this exposure time in clinical practice, associated adverse events, and visual outcomes were documented. METHODS: In this prospective cohort study, phacoemulsification cataract surgery was performed in 604 patients by a single surgeon...
April 7, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28426382/effectiveness-of-hand-washing-on-the-removal-of-iron-oxide-nanoparticles-from-human-skin-ex-vivo
#5
Nastassja A Lewinski, Aurélie Berthet, Lionel Maurizi, Antoine Eisenbeis, Nancy B Hopf
In this study, the effectiveness of washing with soap and water in removing nanoparticles from exposed skin was investigated. Dry, nanoscale hematite (α-Fe2O3) or maghemite (γ-Fe2O3) powder, with primary particle diameters between 20-30 nm, were applied to two samples each of fresh and frozen ex vivo human skin in two independent experiments. The permeation of nanoparticles through skin, and the removal of nanoparticles after washing with soap and water were investigated. Bare iron oxide nanoparticles remained primarily on the surface of the skin, without penetrating beyond the stratum corneum...
April 20, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28426265/transdermal-iontophoresis-patch-with-reverse-electrodialysis
#6
Joon Lee, Kilsung Kwon, Minyoung Kim, Joonhong Min, Nathaniel S Hwang, Won-Serk Kim
Reverse electrodialysis (RED) technology generates energy from the salinity gradient by contacting waters with different salinity. Herein, we develop the disposable skin patch using this eco-friendly energy. The current density, which can be controlled easily without special circuit, is enough to iontophoretic drug delivery. In vitro study, this iontophoretic system enhanced the transdermal delivery of peptide, which is difficult to penetrate the skin barrier by simple diffusion. We design the disposable iontophoretic skin patch using RED system and suggest this patch can be apply on new cosmetic patch or disposable drug patch...
November 2017: Drug Delivery
https://www.readbyqxmd.com/read/28420255/chemical-and-common-burns-in-children
#7
Shan Yin
Burns are a common cause of preventable morbidity and mortality in children. Thermal and chemical burns are the most common types of burns. Their clinical appearance can be similar and the treatment is largely similar. Thermal burns in children occur primarily after exposure to a hot surface or liquid, or contact with fire. Burns are typically classified based on the depth and total body surface area, and the severity and onset of the burn can also depend on the temperature and duration of contact. Chemical burns are caused by chemicals-most commonly acids and alkalis-that can damage the skin on contact...
May 2017: Clinical Pediatrics
https://www.readbyqxmd.com/read/28420254/common-diaper-ingredient-questions-modern-disposable-diaper-materials-are-safe-and-extensively-tested
#8
Jennifer Counts, Annie Weisbrod, Shan Yin
Today's disposable diapers are high-performance and well-tested products, designed to keep skin dry and healthy. They are primarily made of biologically inert polymers, commonly used in fabrics and other materials that are in contact with skin, and in foods and cosmetics. Still, product safety and ingredients in everyday products can be a source of anxiety for new parents. This article provides the facts behind some commonly asked questions from consumers about diaper ingredients and safety, including myths and facts related to chlorine, latex, dyes, and chemical additives...
May 2017: Clinical Pediatrics
https://www.readbyqxmd.com/read/28420251/differential-diagnosis-of-diaper-dermatitis
#9
Bernard Cohen
Mild diaper dermatitis often occurs in children before toilet training is complete, particularly from 9 to 12 months of age, and the most common presentation is an irritant contact dermatitis. Diaper dermatitis may account for up to 25% of dermatology visits to health care providers during the first year of life. Fortunately, since the introduction of hypoallergenic, superabsorbent modern disposable diapers, the incidence and severity of irritant and allergic contact dermatitis has decreased dramatically. Diaper dermatitis broadly refers to skin disorders that occur in the diaper area, such as skin eruptions triggered by diapers, rashes exacerbated by the diaper, and other events that occur in the diaper area...
May 2017: Clinical Pediatrics
https://www.readbyqxmd.com/read/28420106/temporary-black-henna-tattoos-and-sensitization-to-para-phenylenediamine-ppd-two-paediatric-case-reports-and-a-review-of-the-literature
#10
Elisa Panfili, Susanna Esposito, Giuseppe Di Cara
Background: The use of temporary henna tattoos has increased dramatically in recent years, especially in children and adolescents. To obtain a darker colour and prolong the life of the tattoo, red henna, a plant-derived substance, is typically added to para-phenylenediamine (PPD). The mixture is called temporary black henna tattoo (TBHT). Because of its molecular characteristics, PPD can induce skin sensitization that may cause various clinical manifestations with successive exposures, among which the most common is allergic contact dermatitis (ACD)...
April 14, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28418804/determinants-of-nonmedically-indicated-in-hospital-supplementation-of-infants-whose-birthing-parents-intended-to-exclusively-breastfeed
#11
Julia Temple Newhook, Leigh Anne Newhook, William K Midodzi, Janet Murphy Goodridge, Lorraine Burrage, Nicole Gill, Beth Halfyard, Laurie Twells
BACKGROUND: Despite high rates of intention to exclusively breastfeed, rates of exclusive breastfeeding in Canada are low. Supplementation may begin in hospital and is associated with reduced breastfeeding duration. Research aim: The aim of this investigation was to explore determinants of in-hospital nonmedically indicated supplementation of infants whose birthing parents intended to exclusively breastfeed. METHODS: This study is a cross-sectional one-group nonexperimental design, focused on participants who intended to exclusively breastfeed for 6 months ( n = 496)...
May 2017: Journal of Human Lactation: Official Journal of International Lactation Consultant Association
https://www.readbyqxmd.com/read/28418712/a-cross-sectional-study-of-indoor-tanning-in-fitness-centres
#12
Christina M Huang, Mark G Kirchhof
BACKGROUND: Ultraviolet (UV) radiation is a human carcinogen and is associated with the development of skin cancer. The promotion of indoor tanning (IT) at fitness centres is of particular concern as it reinforces the idea that a tan is associated with health and fitness. The purpose of this study was to investigate the prevalence of IT in fitness centres, with an emphasis on determining the financial costs, adherence to regulations, and safety precautions. METHODS: Ten cities, representing 9 different Canadian provinces, were chosen for the study...
April 1, 2017: Journal of Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/28417451/prophylactic-anti-staphylococcal-antibiotics-for-cystic-fibrosis
#13
REVIEW
Alan R Smyth, Margaret Rosenfeld
BACKGROUND: Staphylococcus aureus causes pulmonary infection in young children with cystic fibrosis. Prophylactic antibiotics are prescribed hoping to prevent such infection and lung damage. Antibiotics have adverse effects and long-term use might lead to infection with Pseudomonas aeruginosa. This is an update of a previously published review. OBJECTIVES: To assess continuous oral antibiotic prophylaxis to prevent the acquisition of Staphylococcus aureus versus no prophylaxis in people with cystic fibrosis, we tested these hypotheses...
April 18, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28416298/-epicutaneous-patch-testing-in-delayed-drug-hypersensitivity-reactions-induced-by-antiepileptic-drugs
#14
Lobna Ben Mahmoud, Najla Bahloul, Hanen Ghozzi, Brahim Kammoun, Ahmed Hakim, Zouheir Sahnoun, Sami Kammoun, Khaled Zeghal
INTRODUCTION: Antiepileptic drugs are widely used and are associated with numerous side effects including skin eruptions. Epicutaneous tests have been used with variable success in skin drug reactions. The purpose of this study was to evaluate the profitability of epicutaneous tests in delayed hypersensitivity reactions induced by antiepileptic drugs. METHODS: We analyzed all cases of allergic skin reactions to antiepileptic drugs notified in regional pharmacovigilance center of Sfax (Tunisia) between June 1, 2014 and April 30, 2016...
March 25, 2017: Thérapie
https://www.readbyqxmd.com/read/28416167/partial-reinforcement-of-avoidance-and-resistance-to-extinction-in-humans
#15
Weike Xia, Simon Dymond, Keith Lloyd, Bram Vervliet
In anxiety, maladaptive avoidance behavior provides for near-perfect controllability of potential threat. There has been little laboratory-based treatment research conducted on controllability as a contributing factor in the transition from adaptive to maladaptive avoidance. Here, we investigated for the first time whether partial reinforcement rate, or the reliability of avoidance at controlling or preventing contact with an aversive event, influences subsequent extinction of avoidance in humans. Five groups of participants were exposed to different partial reinforcement rates where avoidance cancelled upcoming shock on 100%, 75%, 50%, 25% or 0% of trials...
April 12, 2017: Behaviour Research and Therapy
https://www.readbyqxmd.com/read/28414762/transcriptional-networks-are-associated-with-resistance-to-mycobacterium-tuberculosis-infection
#16
Chetan Seshadri, Nafiseh Sedaghat, Monica Campo, Glenna Peterson, Richard D Wells, Gregory S Olson, David R Sherman, Catherine M Stein, Harriet Mayanja-Kizza, Ali Shojaie, W Henry Boom, Thomas R Hawn
RATIONALE: Understanding mechanisms of resistance to M. tuberculosis (M.tb) infection in humans could identify novel therapeutic strategies as it has for other infectious diseases, such as HIV. OBJECTIVES: To compare the early transcriptional response of M.tb-infected monocytes between Ugandan household contacts of tuberculosis patients who demonstrate clinical resistance to M.tb infection (cases) and matched controls with latent tuberculosis infection. METHODS: Cases (n = 10) and controls (n = 18) were selected from a long-term household contact study in which cases did not convert their tuberculin skin test (TST) or develop tuberculosis over two years of follow up...
2017: PloS One
https://www.readbyqxmd.com/read/28414681/what-can-erode-through-lungs-bone-and-skin
#17
J M Manalac, D Shankaranayanan, J Paul-Olivier, L Guidry, N R Sells
CASE: A 51 year old African American Man without significant past history presented with three weeks of persistent cough productive of copious yellow sputum. He denied fevers, chills, hemoptysis, dyspnea, weight or appetite changes, sick contacts, recent travel. On physical examination, the patient was afebrile and appeared comfortable. He had decreased air entry of the left lower lobe with dullness to percussion. A 5x3 cm fluctuant mass was incidentally found on the left anterior chest wall at the level of the 11th rib with yellow expressible exudate at which time the patient reported a minor trauma sustained 3 weeks prior...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28414254/lifestyle-intervention-for-adults-with-spinal-cord-injury-results-of-the-usc-rlanrc-pressure-ulcer-prevention-study
#18
Mike Carlson, Cheryl Lp Vigen, Salah Rubayi, Erna Imperatore Blanche, Jeanine Blanchard, Michal Atkins, Barbara Bates-Jensen, Susan L Garber, Elizabeth A Pyatak, Jesus Diaz, Lucia I Florindez, Joel W Hay, Trudy Mallinson, Jennifer B Unger, Stanley Paul Azen, Michael Scott, Alison Cogan, Florence Clark
CONTEXT/OBJECTIVE: Medically serious pressure injuries (MSPrIs), a common complication of spinal cord injury (SCI), have devastating consequences on health and well-being and are extremely expensive to treat. We aimed to test the efficacy of a lifestyle-based intervention designed to reduce incidence of MSPrIs in adults with SCI. DESIGN: A randomized controlled trial (RCT), and a separate study wing involving a nonrandomized standard care control group. SETTING: Rancho Los Amigos National Rehabilitation Center, a large facility serving ethnically diverse, low income residents of Los Angeles County...
April 17, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28413376/ferromagnetic-folded-electrode-composite-as-a-soft-interface-to-the-skin-for-long-term-electrophysiological-recording
#19
Kyung-In Jang, Han Na Jung, Jung Woo Lee, Sheng Xu, Yu Hao Liu, Yinji Ma, Jae-Woong Jeong, Young Min Song, Jeonghyun Kim, Bong Hun Kim, Anthony Banks, Jean Won Kwak, Yiyuan Yang, Dawei Shi, Zijun Wei, Xue Feng, Ungyu Paik, Yonggang Huang, Roozbeh Ghaffari, John A Rogers
This paper introduces a class of ferromagnetic, folded, soft composite material for skin-interfaced electrodes with releasable interfaces to stretchable, wireless electronic measurement systems. These electrodes establish intimate, adhesive contacts to the skin, in dimensionally stable formats compatible with multiple days of continuous operation, with several key advantages over conventional hydrogel based alternatives. The reported studies focus on aspects ranging from ferromagnetic and mechanical behavior of the materials systems, to electrical properties associated with their skin interface, to system-level integration for advanced electrophysiological monitoring applications...
October 25, 2016: Advanced Functional Materials
https://www.readbyqxmd.com/read/28412574/work-place-drug-testing-of-police-officers-after-thc-exposure-during-large-volume-cannabis-seizures
#20
Gregory S Doran, Ralph Deans, Carlo De Filippis, Chris Kostakis, Julia A Howitt
Police officers responsible for the seizure and removal of illegally grown cannabis plants from indoor and outdoor growing operations face the prospect of THC exposure while performing their work duties. As a result, a study investigating the amount of THC on hands and uniforms of officers during raids on cannabis growing houses (CGHs) and forest cannabis plantations (FCPs) and in the air at these sites was conducted. Swabs of gloves/hands, chests, and heads/necks were collected and analysed for THC. Results of hand swabs indicated that officers removing plants from FCPs were exposed to THC concentrations up to 20 times those involved in raids at CGHs, which was mainly associated with the number and size of plants seized...
April 2, 2017: Forensic Science International
keyword
keyword
16433
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"