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https://www.readbyqxmd.com/read/28425114/a-multi-institutional-joint-study-of-contact-dermatitis-related-to-hair-colouring-and-perming-agents-in-japan
#1
Akiko Ito, Kazue Nishioka, Hiromi Kanto, Akiko Yagami, Shigeki Yamada, Mariko Sugiura, Chihiro Yasunaga, Keiko Yoshii, Hiromi Kobayashi, Atsuko Adachi, Yuko Ikezawa, Kumiko Washizaki, Shigeki Inui, Hitoshi Miyazawa, Naoki Oiso, Tokio Nakata, Kayoko Matsunaga
BACKGROUND: In Japan, allergic contact dermatitis caused by hair colouring agents is a considerable problem for those occupationally exposed and also for consumers. Over the last 20 years, p-phenylenediamine (PPD) has been a common allergen, with ∼7% positive patch test reactions. OBJECTIVES: To investigate which ingredients caused allergic contact dermatitis related to hair dye and perming solutions in Japan, to assess whether PPD is suitable for screening for hair dye allergy, and to propose allergens for a Japanese hairdresser series...
April 20, 2017: Contact Dermatitis
https://www.readbyqxmd.com/read/28417932/marine-microbial-derived-molecules-and-their-potential-use-in-cosmeceutical-and-cosmetic-products
#2
REVIEW
Cinzia Corinaldesi, Giulio Barone, Francesca Marcellini, Antonio Dell'Anno, Roberto Danovaro
The oceans encompass a wide range of habitats and environmental conditions, which host a huge microbial biodiversity. The unique characteristics of several marine systems have driven a variety of biological adaptations, leading to the production of a large spectrum of bioactive molecules. Fungi, fungi-like protists (such as thraustochytrids) and bacteria are among the marine organisms with the highest potential of producing bioactive compounds, which can be exploited for several commercial purposes, including cosmetic and cosmeceutical ones...
April 12, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28407398/influence-of-bleaching-and-coloring-on-ethyl-glucuronide-content-in-human-hair
#3
Silvana Petzel-Witt, Werner Pogoda, Cora Wunder, Alexander Paulke, Manfred Schubert-Zsilavecz, Stefan W Toennes
Ethyl glucuronide (EtG) is increasingly used in forensic toxicology as marker for alcohol use in analyses of hair samples especially in abstinence control. Some cosmetic treatments are considered to markedly reduce the EtG content. In view of especially many women with colored hair the present study was performed to further investigate the effect of a variety of coloring procedures (bleaching, tinting, permanent and semi-permanent dyeing, henna) on the EtG content. Untreated hair samples (n = 12, EtG 13...
April 13, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28362669/retrospective-assessment-of-follicular-unit-density-in-asian-men-with-androgenetic-alopecia
#4
Dell Kristie A Ortega-Castillejos, Damkerng Pathomvanich
BACKGROUND: Hair density, together with hair diameter has a tremendous impact on the cosmetic outcome of hair transplantation surgery. OBJECTIVE: This retrospective study aims to assess the average number of follicular unit (FU) grafts in the donor area of Asian men with androgenetic alopecia. METHODS: Seventy patients (ages 24-65 years old) with virgin scalp who had their first hair transplantation were included. During the harvesting procedure, a 2- to 3-cm-wide area of the donor site was shaved from ear to ear with 5 specific areas assigned as reference points for the study namely the central occipital area, left and right parietal and temporal areas...
March 29, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28356116/occupational-exposures-and-determinants-of-ultrafine-particle-concentrations-during-laser-hair-removal-procedures
#5
Emily J Eshleman, Mallory LeBlanc, Lisa B Rokoff, Yinyin Xu, Rui Hu, Kachiu Lee, Gary S Chuang, Gary Adamkiewicz, Jaime E Hart
BACKGROUND: Occupational exposures to ultrafine particles in the plume generated during laser hair removal procedures, the most commonly performed light based cosmetic procedure, have not been thoroughly characterized. Acute and chronic exposures to ambient ultrafine particles have been associated with a number of negative respiratory and cardiovascular health effects. Thus, the aim of this study was to measure airborne concentrations of particles in a diameter size range of 10 nm to 1 μm in procedure rooms during laser hair removal procedures...
March 29, 2017: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/28329610/generalized-woolly-hair-with-diventricular-arrythmogenic-cardiomyopathy-a-rare-variant-of-naxos-disease
#6
Abhijit Dutta, Sudip Kumar Ghosh, Biswajit Majumder, Rahul Majumdar
Woolly hair may occur as an isolated problem of cosmetic concern or can be a part of a systemic disease (woolly hair syndrome) with underlying fatal cardiomyopathy. Two characteristic associations of woolly hair syndrome are Naxos disease and Carvajal syndrome. Naxos disease is characterized by woolly hair, palmoplantar keratoderma, and arrythmogenic right ventricular cardiomyopathy.In this report we describe a case of a young girl who presented with heart failure and was subsequently diagnosed as a case of generalized woolly hair with biventricular arrythmogenic cardiomyopathy...
September 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28329583/dermatologic-care-of-the-transgender-patient
#7
Timothy Hermosura Almazan, Filamer D Kabigting
Literature is limited regarding the medical and cosmetic dermatologic issues pertinent to transgender patients and the reasons why 19 transgender individuals seek care from dermatologists. Clinical management of this population has historically been limited to 20 mental health providers, endocrinologists, and select surgeons with expertise in sex reassignment surgery. The impact of hormonal 21 therapy on transgender skin has been well documented in endocrinology journals, but is underrepresented in dermatology 22 literature...
October 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28326611/mechanical-characterization-of-curly-hair-influence-of-the-use-of-nonconventional-hair-straightening-treatments
#8
M G A Leite, P M B G Maia Campos
BACKGROUND/PURPOSE: Hair straighteners are very popular around the world, although they can cause great damage to the hair. Thus, the characterization of the mechanical properties of curly hair using advanced techniques is very important to clarify how hair straighteners act on hair fibers and to contribute to the development of effective products. On this basis, we chose two nonconventional hair straighteners (formaldehyde and glyoxylic acid) to investigate how hair straightening treatments affect the mechanical properties of curly hair...
March 21, 2017: Skin Research and Technology
https://www.readbyqxmd.com/read/28315768/peptide-protein-interactions-within-human-hair-keratins
#9
Célia F Cruz, Nuno G Azoia, Teresa Matamá, Artur Cavaco-Paulo
We selected 1235 decapeptides from human hair proteins encoded by human genes of keratins and keratin associated proteins. The peptides were linked to glass arrays and screened for their affinity towards a solution of human hair extracted keratin fraction. Based on the physicochemical properties of the peptides, ten variables were studied: content of different types of amino acid side chains (cysteine, hydrophobic, polar, basic, acidic, aromatic rings, amide, alcohol side chains), isoelectric point, and net charge...
March 16, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28293016/umbilical-pilonidal-sinus-an-underestimated-and-little-known-clinical-entity-report-of-two-cases
#10
Mehmet Kaplan, Elif Tugce Kaplan, Tugba Kaplan, Fatma Cigdem Kaplan
BACKGROUND Umbilical pilonidal sinus (UPS) is a rare disease of young, hirsute, dark men with deep navels and poor personal hygiene. UPS could easily be misdiagnosed and mistreated due to its rarity and lack of awareness of the condition by physicians. However, the diagnosis is easy to establish with physical examination and a detailed history. Although it is being diagnosed and reported more frequently, there is still no consensus regarding best treatment options. CASE REPORT In this report, we present two cases of UPS, one in a man and one in a woman, who had typical symptoms of pain, swelling, and intermittent malodorous discharge from the umbilicus...
March 15, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28272910/punch-graft-versus-follicular-hair-transplantation-in-the-treatment-of-stable-vitiligo
#11
Essam-Elden Mohamed Mohamed, Abdel-Khalek Younes, Ahmed Osman, Refaat Mohamed, Mahmoud Makki, Marwa Younis
OBJECTIVE: To compare the efficacy of follicular hair transplantation and mini punch graft in the treatment of stable vitiligo. METHODS: Thirty two patients with stable vitiligo were included in this comparative study. A single patch from each patient was divided into two halves; one half was treated by punch graft while the other half was treated by follicular hair transplantation followed by excimer light twice weekly and the outcome were assessed at 0, 1, 3and 6 months post operatively by photography and quartile scale...
March 8, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28261924/the-effect-of-a-herbal-paste-and-oil-extract-on-the-lipid-content-of-canine-hair-fibres
#12
Yutaka Momota, Kenichiro Shimada, Chihiro Kadoya, Azusa Gin, Jun Kobayashi, Yuka Nakamura, Takako Matsubara, Toshinori Sako
BACKGROUND: Application of herbal paste and oil to a dog's coat and body before rinsing (often combining with shampooing) is a cosmetic therapy available in Japan. It is highly appreciated by users, who claim that the treatment makes the coat shinier, improves volume and eliminates tangles. However, there has been no scientific evaluation of such treatments. HYPOTHESIS/OBJECTIVES: Improvement of hair condition is derived from oils such as sebum and conditioning oils because chemicals are not used...
March 6, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28249276/hair-cortisol-concentrations-are-associated-with-hair-growth-rate
#13
Lianbin Xiang, Imran Sunesara, Kristina E Rehm, Gailen D Marshall
There is a growing interest in hair cortisol concentrations as a valuable biomarker for the assessment of metabolic diseases and chronic psychological stress. Fifty-three volunteers were recruited, and hair segments proximal to the scalp were collected from each individual. A cost-effective ball mill was used for the preparation of hair samples, and ELISA was performed to analyze cortisol concentrations. Results indicate that the frequency of hair washing affects the hair cortisol concentration. The group that washed their hair every day had significantly lower cortisol concentrations than the group that washed it less often...
March 2, 2017: Neuroimmunomodulation
https://www.readbyqxmd.com/read/28245579/analysis-of-blood-concentrations-of-zinc-germanium-and-lead-and-relevant-environmental-factors-in-a-population-sample-from-shandong-province-china
#14
Long Li, Guang Xu, Hua Shao, Zhi-Hu Zhang, Xing-Fu Pan, Jin-Ye Li
Trace elements, including zinc (Zn) and germanium (Ge), are essential for health; deficiency or excess levels of trace elements results is harmful. As a result of industrial and agricultural production, Pb widely exists in people's living environment. It is absorbed mainly through the respiratory and digestive tracts, producing systemic harm. Reference values for a normal, healthy population are necessary for health assessment, prevention and treatment of related diseases, and evaluation of occupational exposures...
February 24, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28244121/multiple-pilomatrixomas-in-children-the-need-for-long-term-follow-up-and-aesthetically-sensitive-incisions
#15
K Brannigan, L L Touil, A Y Fattah
Pilomatrixomas are benign, calcified epitheliomas of the hair follicle, predominately affecting children and commonly presenting in the head and neck region. The current literature is almost unanimous in recommending surgical excision. Reconstruction of these defects may require the need for a skin graft, resulting in poor cosmetic outcome and donor site morbidity. We present two cases demonstrating the benefits of minimal access incisions for pilomatrixomas in children. We recommend that multiple or recurrent lesions should prompt referral to a specialist for management and long-term follow-up...
February 28, 2017: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/28183593/structure-and-mechanical-behavior-of-human-hair
#16
Yang Yu, Wen Yang, Bin Wang, Marc André Meyers
The understanding of the mechanical behavior of hair under various conditions broadens our knowledge in biological materials science and contributes to the cosmetic industry. The hierarchical organization of hair is studied from the intermediate filament to the structural levels. The effects of strain rate, relative humidity, and temperature are evaluated. Hair exhibits a high tensile strength, 150-270MPa, which is significantly dependent on strain rate and humidity. The strain-rate sensitivity, approximately 0...
April 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28169594/keratin-hydrogel-enhances-in-vivo-skeletal-muscle-function-in-a-rat-model-of-volumetric-muscle-loss
#17
J A Passipieri, H B Baker, Mevan Siriwardane, Mary D Ellenburg, Manasi Vadhavkar, Justin M Saul, Seth Tomblyn, Luke Burnett, George J Christ
Volumetric muscle loss (VML) injuries exceed the considerable intrinsic regenerative capacity of skeletal muscle, resulting in permanent functional and cosmetic deficits. VML and VML-like injuries occur in military and civilian populations, due to trauma and surgery as well as due to a host of congenital and acquired diseases/syndromes. Current therapeutic options are limited, and new approaches are needed for a more complete functional regeneration of muscle. A potential solution is human hair-derived keratin (KN) biomaterials that may have significant potential for regenerative therapy...
April 14, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28164425/the-cosmetic-and-dermatological-potential-of-keratin-hydrolysate
#18
Pavel Mokrejs, Matous Hutta, Jana Pavlackova, Pavlina Egner, Lubomir Benicek
BACKGROUND: Although keratin hydrolysates have become established as standard components in hair and nail cosmetics, studies on the moisturizing effects of keratin hydrolysates do not appear among contemporary literature. OBJECTIVES: To test if adding keratin hydrolysate into an ointment base increases hydration of the skin and improves skin barrier function, or diminishes trans-epidermal water loss. METHODS: Formulations were prepared containing 2%, 4%, and 6% keratin hydrolysates (based on weight of the ointment base)...
February 6, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28142293/a-case-report-of-coup-de-sabre-patient-with-hair-transplantation
#19
Yeqin Dai, Ai-E Xu, Junhua He
BACKGROUND: Treatment of coup de sabre must remain conservative until the disease is no longer in an active state. When activity has ceased, some operative intervention is safe and effective for the correction of deformity. While hair transplantation showed high survival rates for the correction of cicatricial alopecia, it has rarely reported to be performed for the correction of coup de sabre. OBJECTIVE: To assess the therapeutic possibility of hair transplantation for the correction of coup de sabre...
January 31, 2017: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/28125532/the-modern-male-rhytidectomy-lessons-learned
#20
Rod J Rohrich, James M Stuzin, Smita Ramanadham, Christopher Costa, Phillip B Dauwe
BACKGROUND: Cosmetic surgery among male patients has become increasingly popular. The face-lift technique is different in male patients, specifically regarding preservation of hair follicles, restoration of a youthful and well appearance, and reduction of the risk of hematoma. METHODS: A retrospective review of a single surgeon's past 20 years of consecutive male rhytidectomies revealed a cohort of 83 patients. A control group was created by random selection of 83 age-matched female rhytidectomy patients during the same period...
February 2017: Plastic and Reconstructive Surgery
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