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https://www.readbyqxmd.com/read/28091808/occupational-and-environmental-scleroderma-systematic-review-and-meta-analysis
#1
Manuel Rubio-Rivas, Rafael Moreno, Xavier Corbella
The etiology of systemic sclerosis (SSc) remains unknown; however, several occupational and environmental factors have been implicated. Our objective was to perform a meta-analysis of all studies published on SSc associated with occupational and environmental exposure. The review was undertaken by means of MEDLINE and SCOPUS from 1960 to 2014 and using the terms: "systemic," "scleroderma," or "systemic sclerosis/chemically induced" [MesH]. The Newcastle-Ottawa Scale was used for the qualifying assessment. The inverse variance-weighted method was performed...
January 14, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28073090/hair-dyeing-hair-washing-and-hair-cortisol-concentrations-among-women-from-the-healthy-start-study
#2
Sheila K Kristensen, Sofus C Larsen, Nanna J Olsen, Jan Fahrenkrug, Berit L Heitmann
BACKGROUND: Hair cortisol concentration (HCC) has been suggested as a promising marker for chronic stress. However, studies investigating the influence of hair dyeing and hair washing frequency on HCC have shown inconsistent results. OBJECTIVE: To examine associations between HCC and hair dyeing status or weekly hair washing frequency among women. METHODS: This cross-sectional study was based on data from 266 mothers participating in the Healthy Start intervention study...
December 31, 2016: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28050486/patch-test-as-a-diagnostic-tool-in-hand-eczema
#3
Natarajan Vigneshkarthik, Satyaki Ganguly, Sheela Kuruvila
INTRODUCTION: Allergic contact dermatitis is an important cause of hand eczema. Patch testing is the only investigation available to prove the diagnosis of allergic contact dermatitis. Exposures to allergens differ according to geographical, occupational, economic and social factors. Accordingly, patterns of allergic contact dermatitis differ in different parts of the world and different regions of the same country. AIM: To study the causes of allergic contact dermatitis in adult patients with hand eczema with the help of patch testing...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28026801/evaluation-of-concordance-between-labelling-and-content-of-52-hair-dye-products-overview-of-the-market-of-oxidative-hair-dye-labelling-and-content-of-hair-dye-products
#4
Annarita Antelmi, Magnus Bruze, Erik Zimerson, Malin Engfeldt, Ewa Young, Lena Persson, Caterina Foti, Östen Sörensen, Cecilia Svedman
Hair dyes contain strong allergens and are widely available. Correct labelling is a necessity in order to provide information about the contents. To compare the labelling and content of hair dyes. In total, 52 hair dyes, from 11 different countries, were bought over the counter. High-pressure liquid chromatography was used for the analysis of p-phenylenediamine (PPD), toluene-2,5-diamine (2,5-TDA), and three oxidation products of PPD. There was good agreement between labelling and content, although seven of the 52 products (13...
December 23, 2016: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/28024137/-secrets-of-the-red-headed
#5
REVIEW
Zygmunt Zdrojewicz, Małgorzata Kowalik, Adam Jagodziński
Only 1-2% of people is red-headed but in the Russian Udmurt Republic or United Kingdom they can be met more often. A specific variant of MC1R gene (R allele) is responsible for the red hair. The gene encodes a receptor for melanocortins. These substances stimulate melanocytes to product melanin- a dye of the skin which is transported to keratinocytes. It protects a cellular nucleus from ultraviolet radiation. Melanin has two types: eumelanin which is dark brown or even black and red/orange pheomelanin. The second one is mostly observed in red-headed which is caused by R allele...
December 22, 2016: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/27981623/central-centrifugal-cicatricial-alopecia-in-children-a-case-series-and-review-of-the-literature
#6
Ariana N Eginli, Ncoza C Dlova, Amy McMichael
BACKGROUND/OBJECTIVES: Central centrifugal cicatricial alopecia (CCCA) is a form of scarring hair loss most commonly seen in middle-aged African and African American women. It is rarely reported in children. The objective of the current study was to document the presence of CCCA in children and to encourage physicians to recognize early signs of CCCA in children of affected adults. METHODS: Six children presented with biopsy-proven CCCA to the Department of Dermatology at Wake Forest Baptist Health and the Nelson R...
December 16, 2016: Pediatric Dermatology
https://www.readbyqxmd.com/read/27971375/a-systematic-review-and-meta-analysis-of-the-prevalence-and-complications-of-paraphenylene-diamine-ppd-containing-hair-dye-poisoning-in-developing-countries
#7
A S Bhagavathula
No abstract text is available yet for this article.
November 2016: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/27940238/a-flexible-and-miniaturized-hair-dye-based-photodetector-via-chemiluminescence-pathway
#8
Ching-Chang Lin, Da-Shiuan Sun, Ya-Lin Lin, Tsung-Tso Tsai, Chieh Cheng, Wen-Hsien Sun, Fu-Hsiang Ko
A flexible and miniaturized metal semiconductor metal (MSM) biomolecular photodetector was developed as the core photocurrent system through chemiluminescence for hydrogen peroxide sensing. The flexible photocurrent sensing system was manufactured on a 30-µm-thick crystalline silicon chip by chemical etching process, which produced a flexible silicon chip. A surface texturization design on the flexible device enhanced the light-trapping effect and minimized reflectivity losses from the incident light. The model protein streptavidin bound to horseradish peroxidase (HRP) was successfully immobilized onto the sensor surface through high-affinity conjugation with biotin...
April 15, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/27929473/synthesis-of-plant-phenol-derived-polymeric-dyes-for-direct-or-mordant-based-hair-dyeing
#9
Kyung Min Im, Jong-Rok Jeon
Effective hair dyeing through in situ incubation of keratin hair with the products of fungal laccase-catalyzed polymerization of plant phenols has been previously demonstrated. However, the dyeing process takes a long time to complete compared to commercial hair-dyeing products. To overcome this bottleneck, pre-synthesized polymeric products of the oxidative reaction of Trametes versicolor laccase on catechin and catechol, either with or without mordant agents (e.g., FeSO4), were here employed to achieve permanent keratin hair dyeing in various colors and shades...
December 1, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27923888/annals-express-attempted-suicide-by-ingestion-of-hair-dye-containing-p-phenylenediamine-a-case-report
#10
Lamis Beshir, Babiker Kaballo, Donald Young
Para-phenylenediamine (PPD) is widely used as a chemical in hair dyes and in combination with Henna. This dye is used to paint the body for decorative reasons, to speed the processing time of henna and intensify the results. PPD is quite used in the Middle East, North Africa and areas like India. Several reports have been published of fatal ingestion of hair dye containing para-phenylenediamine. Here we describe the case of a 14 year-old girl who ingested the compound but whose prompt treatment prevented her death...
December 5, 2016: Annals of Clinical Biochemistry
https://www.readbyqxmd.com/read/27905610/dendritic-polyglycerol-and-n-isopropylacrylamide-based-thermoresponsive-nanogels-as-smart-carriers-for-controlled-delivery-of-drugs-through-the-hair-follicle
#11
Fitsum Feleke Sahle, Michael Giulbudagian, Julian Bergueiro, Jürgen Lademann, Marcelo Calderón
Nanoparticles with a size of several hundred nanometers can effectively penetrate into the hair follicles and may serve as depots for controlled drug delivery. However, they can neither overcome the hair follicle barrier to reach the viable cells nor release the loaded drug adequately. On the other hand, small drug molecules cannot penetrate deep into the hair follicles. Thus, the most efficient way for drug delivery through the follicular route is to employ nanoparticles that can release the drug close to the target structure upon exposure to some external or internal stimuli...
January 7, 2017: Nanoscale
https://www.readbyqxmd.com/read/27896487/natural-compounds-as-occult-ototoxins-ginkgo-biloba-flavonoids-moderately-damage-lateral-line-hair-cells
#12
Sarah Neveux, Nicole K Smith, Anna Roche, Bruce E Blough, Wimal Pathmasiri, Allison B Coffin
Several drugs, including aminoglycosides and platinum-based chemotherapy agents, are well known for their ototoxic properties. However, FDA-approved drugs are not routinely tested for ototoxicity, so their potential to affect hearing often goes unrecognized. This issue is further compounded for natural products, where there is a lack of FDA oversight and the manufacturer is solely responsible for ensuring the safety of their products. Natural products such as herbal supplements are easily accessible and commonly used in the practice of traditional eastern and alternative medicine...
November 28, 2016: Journal of the Association for Research in Otolaryngology: JARO
https://www.readbyqxmd.com/read/27872999/laccase-catalysis-for-the-synthesis-of-bioactive-compounds
#13
REVIEW
Tukayi Kudanga, Blessing Nemadziva, Marilize Le Roes-Hill
The demand for compounds of therapeutic value is increasing mainly because of new applications of bioactive compounds in medicine, pharmaceutical, agricultural, and food industries. This has necessitated the search for cost-effective methods for producing bioactive compounds and therefore the intensification of the search for enzymatic approaches in organic synthesis. Laccase is one of the enzymes that have shown encouraging potential as biocatalysts in the synthesis of bioactive compounds. Laccases are multicopper oxidases with a diverse range of catalytic activities revolving around synthesis and degradative reactions...
January 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27826822/an-updated-systematic-review-on-the-possible-effect-of-nonylphenol-on-male-fertility
#14
Zahra Noorimotlagh, Neemat Jaafarzadeh Haghighi, Mehdi Ahmadimoghadam, Fakher Rahim
Diverse industries like detergents, resins and polymers, hair dyes, intravaginal spermicides, and pesticides produce endocrine disruptor (ED)-containing wastewaters that have hazardous effects on the environment and public health. Nonylphenol (NP) is a chemical substance that consists of a phenolic group and an attached lipophilic linear nonyl chain. NP has weak estrogenic activity and affects estrogen receptor (ER), as well as induces male infertility via a negative impact on spermatogenesis and sperm quality...
November 8, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27792983/feather-keratin-hydrogel-for-wound-repair-preparation-healing-effect-and-biocompatibility-evaluation
#15
Ju Wang, Shilei Hao, Tiantian Luo, Zhongjun Cheng, Wenfeng Li, Feiyan Gao, Tingwang Guo, Yuhua Gong, Bochu Wang
Keratins are highly attractive for wound healing due to their inherent bioactivity, biocompatibility and physical properties. However, nearly all wound healing studies have focused on human hair keratins, and the wound-repair effects and in vivo biocompatibilities of feather keratins are not clear. Feather keratins are derived from chicken feathers, which are considered to be the major waste in the poultry industry, and the quality of feather keratin is easier to control than that of human hair keratin due to human hair perming and colouring-dyeing...
January 1, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/27775972/tolerance-to-a-hair-dye-product-containing-2-methoxymethyl-p-phenylenediamine-in-an-ethnically-diverse-population-of-p-phenylenediamine-allergic-individuals
#16
Amir Zahir, Chesahna Kindred, Brunhilde Blömeke, Carsten Goebel, Anthony A Gaspari
BACKGROUND: Allergic contact dermatitis after exposure to p-phenylenediamine (PPD)-containing hair dye products is a common and important clinical problem. Because there is a high rate of cross-elicitation of allergic contact dermatitis to other important hair dye products (such as p-toluene diamine and other aminophenol hair dyes) in PPD-allergic patients, safer alternative dyes with excellent hair coloring options are needed. OBJECTIVE: This study aimed to study tolerance to Me-PPD in a PPD-allergic cohort...
November 2016: Dermatitis
https://www.readbyqxmd.com/read/27762642/efficacy-and-safety-of-mascara-dyeing-as-an-adjunct-to-alexandrite-and-nd-yag-laser-applications-for-removing-thin-and-white-colored-facial-and-axillary-hair
#17
Pelin Üstüner, Ali Balevi, Mustafa Özdemir
INTRODUCTION: There is no satisfactory and efficient method for long-term removal of white-colored and thin hair. METHODS: We conducted a randomised clinical trial of hirsute patients with excessive white and/or thin hair on the face and/or axilla. In Group I (n: 16), the facial hair on one side of the face was painted with a black eyelash mascara immediately before Nd:YAG laser and the other half was only treated by Nd:YAG. In Group II (n: 20), the axillary hair on one side was painted with the mascara before the Alexandrite laser with the other side being only treated by Alexandrite...
December 2016: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/27749802/severe-neck-and-face-edema-in-an-adolescent-delayed-hypersensitivity-reaction-to-hair-dye
#18
Sakine Işik, Sule Caglayan-Sözmen, Özden Anal, Özkan Karaman, Nevin Uzuner
Allergic contact reactions to hair dyes arise mostly due to sensitization to para-phenylenediamine (PPD). Para-phenylenediamine, a derivative of p-nitroanaline, is widely used as an oxydizable hair dye and is also found in black henna tattoo. Subsequent exposure to PPD may lead to delayed type IV hypersensitivity reaction manifesting as acute contact dermatitis. Here, a 15-year-old girl is presented, who developed a hypersensitivity reaction after first exposure to hair dye. She was found to have been sensitized to PPD before, through application of black henna tatto...
October 4, 2016: Pediatric Emergency Care
https://www.readbyqxmd.com/read/27728598/myocarditis-in-hair-dye-poisoning
#19
K Sivarama Krishna
No abstract text is available yet for this article.
January 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/27693856/gradient-dependent-release-of-the-model-drug-tritc-dextran-from-fitc-labeled-bsa-hydrogel-nanocarriers-in-the-hair-follicles-of-porcine-ear-skin
#20
Ngo Bich Nga Nathalie Tran, Fanny Knorr, Wing Cheung Mak, Kwan Yee Cheung, Heike Richter, Martina Meinke, Jürgen Lademann, Alexa Patzelt
Hair follicle research is currently focused on the development of drug-loaded nanocarriers for the targeting of follicular structures in the treatment of skin and hair follicle-related disorders. In the present study, a dual-label nanocarrier system was implemented in which FITC-labeled BSA hydrogel nanocarriers loaded with the model drug and dye TRITC-dextran were applied topically to porcine ear skin. Follicular penetration and the distribution of both dyes corresponding to the nanocarriers and the model drug in the follicular ducts subsequent to administration to the skin were investigated using confocal laser scanning microscopy...
September 29, 2016: European Journal of Pharmaceutics and Biopharmaceutics
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