keyword
MENU ▼
Read by QxMD icon Read
search

Skin of color

keyword
https://www.readbyqxmd.com/read/28649154/skin-dose-mapping-for-non-uniform-x-ray-fields-using-a-backscatter-point-spread-function
#1
Sarath Vijayan, Zhenyu Xiong, Alok Shankar, Stephen Rudin, Daniel R Bednarek
Beam shaping devices like ROI attenuators and compensation filters modulate the intensity distribution of the x-ray beam incident on the patient. This results in a spatial variation of skin dose due to the variation of primary radiation and also a variation in backscattered radiation from the patient. To determine the backscatter component, backscatter point spread functions (PSF) are generated using EGS Monte-Carlo software. For this study, PSF's were determined by simulating a 1 mm beam incident on the lateral surface of an anthropomorphic head phantom and a 20 cm thick PMMA block phantom...
February 11, 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/28647318/expression-of-genes-for-melanotropic-peptides-and-their-receptors-for-morphological-color-change-in-goldfish-carassius-auratus
#2
Kanta Mizusawa, Yutaka Yamamura, Satoshi Kasagi, José Miguel Cerdá-Reverter, Akiyoshi Takahashi
To evaluate the association of the melanotropic peptides and their receptors for morphological color change, we investigated the effects of changes in background color, between white and black, on xanthophore density in the scales and expression levels of genes for hormonal peptides and corresponding receptors (MCH-R2, MC1R, and MC5R) in goldfish (Carassius auratus). The xanthophore density in both dorsal and ventral scales increased after transfer from a white to black background. However, xanthophore density in dorsal scales increased after transfer from a black to white background, and that of ventral scales decreased after transfer from a black-to-black background, which served as the control...
June 21, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28643008/correction-of-rhytides-peau-d-orange-and-thin-dermis-of-the-face-by-neocollagenesis-using-novel-collagen-stimulating-slurry-protocol
#3
Steven Dominguez, Marek Dobke
We reviewed 200 patient records from 2009 to 2015 of individuals who presented at the authors offices for facial wrinkle reduction and who on physical examination had rhytides, peau d'orange, or thin dermis and underwent novel adipose slurry injections. The patients were evaluated at week 2, 1, 3 and 6 months revealing an 80, 60 and 40% improvement in rhytides and dermis density, respectively. We present the protocol and description of a reasonable alternative or adjunct to manufactured fillers that is comprised of autologous adipose, stem cells, and growth factor slurry...
June 22, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28633748/multiple-papulonodular-lesions-on-central-area-of-the-face-what-is-your-diagnosis
#4
Margarida Rato, Ana Filipe Monteiro, João Aranha, Ermelindo Tavares
A healthy 31-year-old woman presented with a 20-year history of asymptomatic skin-colored papules and nodules on the central area of the face. Her maternal grandmother, aunts, mother, and sister also had similar lesions. Clinical, histopathological, and genetic features allowed the diagnosis of multiple familial trichoepithelioma. The patient and family were referred to the genetic department for genetic counselling. Close follow-up for the possibility of secondary basal cell carcinoma is warranted.
June 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/28632802/diversity-in-dermatology-a-society-devoted-to-skin-of-color
#5
Jacob Subash, Rechelle Tull, Amy McMichael
The US Census Bureau predicts that more than half of the country's population will identify as a race other than non-Hispanic white by the year 2044. Racial disparities also exist in the physician population where black individuals and Latinos are underrepresented. The Skin of Color Society (SOCS) was established to address the need for parity among dermatology patients with skin of color. The society provides educational support on dermatologic health related to skin of color and functions through committees that represent the multifaceted aspects of the organization...
May 2017: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/28632798/skin-cancer-mortality-in-patients-with-skin-of-color
#6
Bridget P Kaufman, Andrew F Alexis
No abstract text is available yet for this article.
May 2017: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/28629701/a-polymethoxyflavone-mixture-extracted-from-orange-peels-mainly-containing-nobiletin-3-3-4-5-6-7-8-heptamethoxyflavone-and-tangeretin-suppresses-melanogenesis-through-the-acidification-of-cell-organelles-including-melanosomes
#7
Norihiro Yoshizaki, Ron Hashizume, Hitoshi Masaki
BACKGROUND: Skin color is determined by melanin contents and its distribution. Melanin is synthesized in melanosomes of melanocytes, catalyzed by tyrosinase, melanogenic enzymes. Regarding the process of melanin synthesis, melanosomal pH is considered to play an important role, because it has been reported to differ between Caucasian and Black melanocytes. OBJECTIVE: Although polymethoxyflavone (PMF) has many beneficial effects, it has not been reported which PMF suppresses melanogenesis...
June 10, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28629002/a-facile-synthesis-method-of-hydroxyethyl-cellulose-silver-nanoparticle-scaffolds-for-skin-tissue-engineering-applications
#8
Farah Hanani Zulkifli, Fathima Shahitha Jahir Hussain, Senait Sileshi Zeyohannes, Mohammad Syaiful Bahari Abdull Rasad, Mashitah M Yusuff
Green porous and ecofriendly scaffolds have been considered as one of the potent candidates for tissue engineering substitutes. The objective of this study is to investigate the biocompatibility of hydroxyethyl cellulose (HEC)/silver nanoparticles (AgNPs), prepared by the green synthesis method as a potential host material for skin tissue applications. The substrates which contained varied concentrations of AgNO3 (0.4%-1.6%) were formed in the presence of HEC, were dissolved in a single step in water. The presence of AgNPs was confirmed visually by the change of color from colorless to dark brown, and was fabricated via freeze-drying technique...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28621453/the-pinhole-method-using-an-erbium-yag-laser-for-the-treatment-of-papular-acne-scars
#9
Sang Ju Lee, Jae Min Kim, Young Koo Kim, Seong Jun Seo, Kui Young Park
Papular acne scars are skin-colored or hypopigmented, soft and elevated lesions of the chin and trunk. Papular scars are one of the most difficult acne scars to treat. Herein, we reported two patients with papular acne scars on the chin that were successfully treated by the pinhole method using an Erbium (ER):YAG laser. Good cosmetic results were achieved in both patients. The side effects included mild, intra-, and post-procedural pain and erythema that resolved spontaneously within 2 weeks. The pinhole method with an Er:YAG laser could potentially be used as a safe and effective treatment for papular acne scars...
June 16, 2017: Dermatologic Therapy
https://www.readbyqxmd.com/read/28619638/development-and-characterization-of-cuttlefish-sepia-officinalis-skin-gelatin-protein-isolate-blend-films
#10
Hela Kchaou, Mourad Jridi, Ola Abdelhedi, Benbettaïeb Nasreddine, Thomas Karbowiak, Moncef Nasri, Frédéric Debeaufort
In the present study, cuttlefish skin gelatin (CSG) and protein isolate (CSPI) blend films were prepared and their physicochemical and antioxidant properties were characterized. CSG (4%, w/v) was blended with CSPI (3%, w/v) at different ratios and 15% of glycerol (w/w, plasticizer/polymer dry matter). Results showed that increasing of CSPI content induced lower lightness but higher redness, yellowness and color difference values compared to CSG film. In addition, CSPI film had the lowest tensile strength (TS) and elongation at break (EAB) values...
June 12, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28617563/regulatory-mechanism-of-mir-29-over-tgf-%C3%AE-1-and-col1-in-scar-cells
#11
S Bi, C Cao, L-L Chai, S-R Li, D-Y Yang
OBJECTIVE: To study the regulatory mechanism of miR-29 over TGF-β1 and COL1 in scar cells. PATIENTS AND METHODS: 5 clinical cases of hypertrophic scar (HS) skin and adjacent normal skin tissues were separated into fibroblast for primary culture and subculture before being observed morphologically and standard HE staining under an ordinary optical microscope. RT-PCR method was applied to test the expression level of miR-29, TGF-β1, and COL1 mRNA. ELISA method was applied to test the expression level of extracellular matrix COL1, fibronectin (FN) and α-SMA...
May 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28617058/the-assessment-of-skin-color-and-iron-levels-in-pediatric-patients-with-%C3%AE-thalassemia-major-using-a-visual-skin-color-chart
#12
Ibrahim H Bucak, Habip Almis, Samet Benli, Mehmet Turgut
Patients with β-thalassemia major (β-TM), a disease that emerges due to disorder of hemoglobin (Hb) synthesis, require life-long erythrocyte transfusion. The purpose of this study was to evaluate skin color and iron levels of patients with β-TM using a visual skin color chart. Each patient's skin color was matched on a skin color chart under a fluorescent lamp by the same physician on each occasion. Iron, iron binding capacity, ferritin and complete blood count (CBC) were studied for each patient enrolled...
June 15, 2017: Hemoglobin
https://www.readbyqxmd.com/read/28615791/monte-carlo-investigation-of-backscatter-point-spread-function-for-x-ray-imaging-examinations
#13
Zhenyu Xiong, Sarath Vijayan, Stephen Rudin, Daniel R Bednarek
X-ray imaging examinations, especially complex interventions, may result in relatively high doses to the patient's skin inducing skin injuries. A method was developed to determine the skin-dose distribution for non-uniform x-ray beams by convolving the backscatter point-spread-function (PSF) with the primary-dose distribution to generate the backscatter distribution that, when added to the primary dose, gives the total-dose distribution. This technique was incorporated in the dose-tracking system (DTS), which provides a real-time color-coded 3D-mapping of skin dose during fluoroscopic procedures...
February 11, 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/28615261/increased-vitamin-d-intake-differentiated-according-to-skin-color-is-needed-to-meet-requirements-in-young-swedish-children-during-winter-a-double-blind-randomized-clinical-trial
#14
Inger Öhlund, Torbjörn Lind, Olle Hernell, Sven-Arne Silfverdal, Pia Karlsland Åkeson
Background: Dark skin and low exposure to sunlight increase the risk of vitamin D insufficiency in children.Objective: The aim of the study was to evaluate the amount of vitamin D needed to ascertain that most children >4 y of age attain sufficient serum 25-hydroxyvitamin D [S-25(OH)D; i.e., ≥50 nmol/L] during winter regardless of latitude and skin color.Design: In a longitudinal, double-blind, randomized, food-based intervention study, 5- to 7-y-old children from northern (63°N) and southern (55°N) Sweden with fair (n = 108) and dark (n = 98) skin were included...
June 14, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28614446/-factors-associated-with-tb-hiv-coinfection-evidence-from-notification-data-in-the-state-of-amazonas-brazil-2001-2012
#15
Evela da Silva Magno, Valeria Saraceni, Alexandra Brito de Souza, Regma da Silva Magno, Maria das Graças Gomes Saraiva, Samira Bührer-Sékula
Tuberculosis (TB) in persons living with HIV (PLHIV) is the leading infectious cause of AIDS-related death. The aim of this study was to estimate the prevalence of TB/HIV coinfection, evaluate notification of the two diseases over time by probabilistic database linkage, and identify factors associated with AIDS and TB notifications. Prevalence of TB/HIV coinfection was 7.7%. The group of PLHIV with subsequent TB diagnosis was the most representative, despite available preventive measures. Underreporting of TB among AIDS cases was 35%, and 19...
June 12, 2017: Cadernos de Saúde Pública
https://www.readbyqxmd.com/read/28612570/-the-value-of-high-frequency-color-doppler-ultrasonography-in-the-diagnosis-of-solid-skin-tumorsa-a-preliminary-study
#16
Lin Zhong, Yuan-Jiao Tang, Yu-Jia Yang, Li Qiu
OBJECTIVES: To explore the value of high frequency color doppler ultrasonography in differentiating benign and malignant skin solid tumors. METHODS: Clinical and ultrasonic data of cutaneous solid tumors confirmed by pathology in our hospital were collected. The differences in clinical and sonographic features between benign and malignant tumors were statistically analyzed. RESULTS: A total of 512 patients, involving 527 cases of skin solid tumors, were enrolled in this study...
January 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28612080/color-and-emotion-effects-of-hue-saturation-and-brightness
#17
Lisa Wilms, Daniel Oberfeld
Previous studies on emotional effects of color often failed to control all the three perceptual dimensions of color: hue, saturation, and brightness. Here, we presented a three-dimensional space of chromatic colors by independently varying hue (blue, green, red), saturation (low, medium, high), and brightness (dark, medium, bright) in a factorial design. The 27 chromatic colors, plus 3 brightness-matched achromatic colors, were presented via an LED display. Participants (N = 62) viewed each color for 30 s and then rated their current emotional state (valence and arousal)...
June 13, 2017: Psychological Research
https://www.readbyqxmd.com/read/28610240/four-new-species-of-terrestrial-breeding-frogs-of-the-genus-i-phrynopus%C3%A2-i-anura-terrarana-craugastoridae-from-r%C3%A3-o-abiseo-national-park-peru
#18
Lily O Rodriguez, Alessandro Catenazzi
We describe four new species of terrestrial-breeding frogs belonging to the genus Phrynopus from specimens collected on the eastern slopes of the Cordillera Oriental (2800-3850 m) near and within Río Abiseo National Park, Provincia Mariscal Cáceres, Departments of San Martín and La Libertad, northeastern Peru. All four species lack a visible tympanum and inhabit the upper ridges and slopes within or adjacent to the Park. Phrynopus anancites sp. nov. and P. capitalis sp. nov. inhabit the wet montane grasslands on the upper ridges and valleys from 3600 to 3850 m...
June 6, 2017: Zootaxa
https://www.readbyqxmd.com/read/28609760/epidemiology-of-acne-vulgaris-in-18-year-old-male-army-conscripts-in-a-south-brazilian-city
#19
Rodrigo Pereira Duquia, Iná da Silva Dos Santos, Hiram de Almeida, Paulo Ricardo Martins Souza, Juliano de Avelar Breunig, Christos C Zouboulis
BACKGROUND: Prevalence of acne varies worldwide. Several factors (age, skin color, body fat, diet, and smoking) have been investigated as risk factors. OBJECTIVE: A total of 2,201 18-year-old males living in Pelotas, South Brazil, were evaluated in order to examine the prevalence of acne and associated factors. METHODS: A cross-sectional population-based study was conducted. A dermatologist performed the clinical examination of the face and trunk for identification of acne lesions...
June 14, 2017: Dermatology: International Journal for Clinical and Investigative Dermatology
https://www.readbyqxmd.com/read/28609168/forever-young-visual-representations-of-gender-and-age-in-online-dating-sites-for-older-adults
#20
Ateret Gewirtz-Meydan, Liat Ayalon
Online dating has become increasingly popular among older adults following broader social media adoption patterns. The current study examined the visual representations of people on 39 dating sites intended for the older population, with a particular focus on the visualization of the intersection between age and gender. All 39 dating sites for older adults were located through the Google search engine. Visual thematic analysis was performed with reference to general, non-age-related signs (e.g., facial expression, skin color), signs of aging (e...
June 13, 2017: Journal of Women & Aging
keyword
keyword
73185
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"