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https://www.readbyqxmd.com/read/27605423/lignin-peroxidase-functionalities-and-prospective-applications
#1
Ayodeji O Falade, Uchechukwu U Nwodo, Benson C Iweriebor, Ezekiel Green, Leonard V Mabinya, Anthony I Okoh
Ligninolytic extracellular enzymes, including lignin peroxidase, are topical owing to their high redox potential and prospective industrial applications. The prospective applications of lignin peroxidase span through sectors such as biorefinery, textile, energy, bioremediation, cosmetology, and dermatology industries. The litany of potentials attributed to lignin peroxidase is occasioned by its versatility in the degradation of xenobiotics and compounds with both phenolic and non-phenolic constituents. Over the years, ligninolytic enzymes have been studied however; research on lignin peroxidase seems to have been lagging when compared to other ligninolytic enzymes which are extracellular in nature including laccase and manganese peroxidase...
September 7, 2016: MicrobiologyOpen
https://www.readbyqxmd.com/read/27604277/parameterization-and-optimization-of-the-menthol-force-field-for-molecular-dynamics-simulations
#2
Mateusz Jasik, Borys Szefczyk
Menthol's various biological properties render it a useful component for medical and cosmetological applications, while its three centers of asymmetry mean that it can be used in a range of organic reactions. Menthol-substituted ionic liquids (ILs) have been found to exhibit promising antimicrobial and antielectrostatic properties, as well as being useful in organic catalysis and biochemical studies. However, so far, a force field designed and validated specifically for the menthol molecule has not been constructed...
October 2016: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/27550617/invasive-scalp-melanoma-role-for-enhanced-detection-through-professional-training
#3
Brendan P Lovasik, Ishna Sharma, Maria C Russell, Grant W Carlson, Keith A Delman, Monica Rizzo
BACKGROUND: Scalp and neck melanomas (SNMs) have a relatively poor prognosis compared to other sites, and represent an anatomically challenging area for detection. The aim of this study was to identify the role of the hairdresser in detection of SNMs. METHODS: A tertiary surgical oncology institutional database was retrospectively reviewed for all patients undergoing resection of a scalp, posterior neck, or retro auricular invasive primary melanoma between 2008 and 2014...
November 2016: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27516408/unsupervised-delineation-of-stratum-corneum-using-reflectance-confocal-microscopy-and-spectral-clustering
#4
A Bozkurt, K Kose, C Alessi-Fox, J G Dy, D H Brooks, M Rajadhyaksha
BACKGROUND: Measuring the thickness of the stratum corneum (SC) in vivo is often required in pharmacological, dermatological, and cosmetological studies. Reflectance confocal microscopy (RCM) offers a non-invasive imaging-based approach. However, RCM-based measurements currently rely on purely visual analysis of images, which is time-consuming and suffers from inter-user subjectivity. METHODS: We developed an unsupervised segmentation algorithm that can automatically delineate the SC layer in stacks of RCM images of human skin...
August 12, 2016: Skin Research and Technology
https://www.readbyqxmd.com/read/27474503/nonablative-radiofrequency-treatment-for-the-skin-in-the-eye-area-clinical-and-cutometrical-analysis
#5
Anna Augustyniak, Helena Rotsztejn
OBJECTIVE: The purpose of the research was to evaluate skin elasticity and reduction in the aging eye area after using a nonablative radiofrequency treatment. MATERIAL AND METHODS: This study included 23 patients, aged 34-58 years with Fitzpatrick skin type II and III. They received five treatment sessions with a nonablative radiofrequency in 1-week intervals. Biomechanical properties of the skin were measured using Cutometer. A photodocumentation was used to compare changes before and after the series of treatment sessions...
July 29, 2016: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/27472987/ten-pearls-every-dermatologist-should-know-about-the-appropriate-use-of-relaxers
#6
Vanessa Richardson, Ada T Agidi, Erica R Eaddy, Loretta S Davis
Chemical relaxers are products marketed to straighten the hair and have been principally used by African Americans since the early twentieth century. They contain alkaline agents that break and reform hydrogen and disulfide bonds, leaving hair permanently straightened. Relaxers cause loss of tensile strength and increased fragility of the hair shaft that lead to increased risk of hair breakage and thinning. When used improperly, they can also cause local irritant contact dermatitis and chemical burns to the scalp and hairline that can potentially lead to a scarring alopecia...
July 29, 2016: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/27451932/topical-peptides-as-cosmeceuticals
#7
REVIEW
Varadraj Vasant Pai, Prasana Bhandari, Pankaj Shukla
Peptides are known to have diverse biological roles, most prominently as signaling/regulatory molecules in a broad variety of physiological processes including defense, immunity, stress, growth, homeostasis and reproduction. These aspects have been used in the field of dermatology and cosmetology to produce short, stable and synthetic peptides for extracellular matrix synthesis, pigmentation, innate immunity and inflammation. The evolution of peptides over the century, which started with the discovery of penicillin, has now extended to their usage as cosmeceuticals in recent years...
July 18, 2016: Indian Journal of Dermatology, Venereology and Leprology
https://www.readbyqxmd.com/read/27422163/a-quantitative-ethnobotanical-survey-of-phytocosmetics-used-in-the-tropical-island-of-mauritius
#8
M Fawzi Mahomoodally, Poorneeka Ramjuttun
ETHNOPHARMACOLOGICAL RELEVANCE: With a net turnover worth of £181 billion, the cosmetic industry is a leading worldwide business with a very lucrative future. Nonetheless, due to recent concerns regarding toxicity of synthetic cosmetics, herbal products have come into the limelight of cosmetology. The tropical island of Mauritius has a well-anchored diversity of indigenous plant species which are exploited for various purposes but no study has been designed to (i) quantitatively document, (ii) assess the effectiveness, and (iii) study the incidence of adverse effects and perception associated with the use of herbal products for cosmetic applications...
July 12, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27322248/enriched-astaxanthin-extract-from-haematococcus-pluvialis-augments-growth-factor-secretions-to-increase-cell-proliferation-and-induces-mmp1-degradation-to-enhance-collagen-production-in-human-dermal-fibroblasts
#9
Hsin-Yu Chou, Chelsea Lee, Jian-Liang Pan, Zhi-Hong Wen, Shu-Hung Huang, Chi-Wei John Lan, Wang-Ta Liu, Tzyh-Chyuan Hour, You-Cheng Hseu, Byeong Hee Hwang, Kuo-Chen Cheng, Hui-Min David Wang
Among many antioxidants that are used for the repairing of oxidative stress induced skin damages, we identified the enriched astaxanthin extract (EAE) from Haematococcus pluvialis as a viable ingredient. EAE was extracted from the red microalgae through supercritical fluid carbon dioxide extraction. To compare the effectiveness, EAE wastreated on human dermal fibroblasts with other components, phorbol 12-myristate 13-acetate (PMA), and doxycycline. With sirius red staining and quantitative real-time polymerase chain reaction (qRT-PCR), we found that PMA decreased the collagen concentration and production while overall the addition of doxycycline and EAE increased the collagen concentration in a trial experiments...
June 16, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27271834/-the-influence-of-low-frequency-pulsed-electric-and-magnetic-signals-or-their-combination-on-the-normal-and-modified-fibroblasts-an-experimental-study
#10
M V Ulitko, S Yu Medvedeva, V V Malakhov
The results of clinical studies give evidence of the beneficial preventive and therapeutic effects of the «Tiline-EM» physiotherapeutic device designed for the combined specific treatment of the skin regions onto which both discomfort and pain sensations are directly projected, reflectively active sites and zones, as well as trigger zones with the use of low-frequency pulsed electric current and magnetic field. The efficient application of the device requires the understanding of the general mechanisms underlying such action on the living systems including those operating at the cellular and subcellular levels...
May 2016: Voprosy Kurortologii, Fizioterapii, i Lechebnoĭ Fizicheskoĭ Kultury
https://www.readbyqxmd.com/read/27149135/knowledge-about-ultraviolet-radiation-hazards-and-tanning-behavior-of-cosmetology-and-medical-students
#11
Ewelina Bogumiła Zuba, Wojciech Francuzik, Przemysław Malicki, Agnieszka Osmola-Mańkowska, Dorota Jenerowicz
Dear Editor, Ultraviolet (UV) radiation is a well-known physical hazard responsible for photoaging, photoallergic, and phototoxic reactions as well as carcinogenesis, including life-threatening melanomas (1,2). Overexposure to both natural and artificial UV radiation is a public health concern. 30% of cancers diagnosed worldwide are skin cancers. Approximately three million non-melanoma skin cancers and 132 000 new cases of melanomas are diagnosed globally each year (3). Sunburns, especially in childhood, are a very important risk factor for melanomas...
April 2016: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/27116966/cloning-expression-and-antioxidant-activity-of-a-novel-collagen-from-pelodiscus-sinensis
#12
Ran Xu, Dengfeng Li, Jiao Peng, Jing Fang, Liping Zhang, Lianguo Liu
Collagen is the main structural protein of various connective tissues in animals and naturally plays an important role within the body. It is increasingly used within certain areas, such as medicine, citology and cosmetology. The soft-shelled turtle (Pelodiscus sinensis) is a commercially important aquatic species rich in collagen. In this study, a novel collagen gene fragment of 756 bp, which encodes 252 deduced amino acid residues, including 25 conserved Gly-X-Y motifs, was cloned from a soft-shelled turtle...
June 2016: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/27057038/nose-applied-aspects-in-dermatology
#13
Dammaningala Venkataramaiah Lakshmi, Kanathur Shilpa, Holavanahally Veerabhadrappa Nataraja, Kallapa Gorur Divya
Nose is the most prominent part of the mid-face and has important physiological, aesthetic and psychological functions. Skin diseases on the nose are commonly seen by dermatologists, otorhinolaryngologists, and plastic surgeons. Because of its exposed, highly visible localization, lesions on the skin of the nose are often noticed by patients themselves, typically very early in the course of the disease. Similarly, the dermatological lexicon is well known with descriptive terminologies, synonyms, acronyms, eponyms, toponyms, misnomers...
March 2016: Indian Journal of Dermatology
https://www.readbyqxmd.com/read/26750015/-effectiveness-of-modified-park-method-of-blepharoplasty-for-correction-of-mild-blepharoptosis
#14
Changying Niu, Shenxing Tan, Caifeng Wu, Zongyan Liu, Zemin Zhang, Shengjian Tang, Xiaoqin Liang
OBJECTIVE: To explore the effectiveness of the modified Park method of blepharoplasty for correction of mild blepharoptosis. METHODS: Between October 2012 and January 2015, a new modified Park method of blepharoplasty was performed on 23 patients with foldless eyelid combined mild blepharoptosis. There were 14 males and 9 females, aged 16 to 35 years (mean, 25 years). Unilateral eyelid was involved in 16 cases, bilateral eyelids in 7 cases. The upper eyelid was located at the edge of the pupil, and the drop was 1-2 mm (mean, 1...
September 2015: Chinese Journal of Reparative and Reconstructive Surgery
https://www.readbyqxmd.com/read/26725774/a-new-quantitative-evaluation-method-for-age-related-changes-of-individual-pigmented-spots-in-facial-skin
#15
K Kikuchi, Y Masuda, T Yamashita, K Sato, C Katagiri, T Hirao, Y Mizokami, H Yaguchi
BACKGROUND: Facial skin pigmentation is one of the most prominent visible features of skin aging and often affects perception of health and beauty. To date, facial pigmentation has been evaluated using various image analysis methods developed for the cosmetic and esthetic fields. However, existing methods cannot provide precise information on pigmented spots, such as variations in size, color shade, and distribution pattern. The purpose of this study is the development of image evaluation methods to analyze individual pigmented spots and acquire detailed information on their age-related changes...
August 2016: Skin Research and Technology
https://www.readbyqxmd.com/read/26675386/ultrasound-image-of-the-skin-apparatus-and-imaging-basics
#16
REVIEW
Robert Krzysztof Mlosek, Sylwia Malinowska
Ultrasound imaging of the skin is becoming more and more popular. Skin ultrasound examinations are used both in order to assess healthy skin and to evaluate pathological lesions. They are mainly performed in dermatology as well as in broadly understood aesthetic medicine and cosmetology. At present, skin imaging is enabled by high-frequency equipment and high-quality conventional devices. The introduction of high-frequency electronic transducers which are supported by conventional scanners may be a turning point in skin ultrasound equipment...
June 2013: Journal of Ultrasonography
https://www.readbyqxmd.com/read/26671914/-dual-action-of-vitamin-c-versus-degradation-and-supplementation
#17
REVIEW
Katarzyna Kaliś
The article discusses vitamin C from the point of view of its supplementation with food and in the form of oral supplements. The dual action of vitamin C is connected with the presence of oxygen, which may reduce the amount of the vitamin in food products, influence thermal resistance, cause degradation and show an antioxidation effect. Vitamin C stimulates the immune cells and collagen synthesis. It may protect the LDL fraction against oxidation, and therefore it is interesting for cosmetology, rheumatology, immunology and dietetics...
2015: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/26444385/designing-of-biodegradable-and-biocompatible-release-and-delivery-systems-of-selected-antioxidants-used-in-cosmetology
#18
Magdalena Maksymiak, Renata Debowska, Karolina Bazela, Agata Dzwigalowska, Arkadiusz Orchel, Katarzyna Jelonek, Barbara Dolegowska, Marek Kowalczuk, Grazyna Adamus
Conjugates of antioxidants p-anisic (p-AA) and vanillic (VA) acids with nontoxic, biocompatible, and biodegradedable oligo-(R,S)-(3-hydoxybutyrate) carrier were synthesized, and their structural and biological characterization was performed. The molecular structure of the bioconjugates, in which antioxidants are covalently bonded with oligo(3-hydroxybutyrate) (OHB) chains, has been proven by mass spectrometry supported by NMR. The bioconjugate hydrolytic degradation studies allowed gaining thorough insight into the hydrolysis process and confirmed the release of p-AA and VA...
November 9, 2015: Biomacromolecules
https://www.readbyqxmd.com/read/26413519/anthropometric-measurements-usage-in-medical-sciences
#19
REVIEW
Nevin Utkualp, Ilker Ercan
Morphometry is introduced as quantitative approach to seek information concerning variations and changes in the forms of organisms that described the relationship between the human body and disease. Scientists of all civilization, who existed until today, examined the human body using anthropometric methods. For these reasons, anthropometric data are used in many contexts to screen for or monitor disease. Anthropometry, a branch of morphometry, is the study of the size and shape of the components of biological forms and their variations in populations...
2015: BioMed Research International
https://www.readbyqxmd.com/read/26404245/4-phenylsulfanyl-butan-2-one-suppresses-melanin-synthesis-and-melanosome-maturation-in-vitro-and-in-vivo
#20
Shing-Yi Sean Wu, Hui-Min David Wang, Yi-Shan Wen, Wangta Liu, Pin-Hui Li, Chien-Chih Chiu, Pei-Chin Chen, Chiung-Yao Huang, Jyh-Horng Sheu, Zhi-Hong Wen
In this study, we screened compounds with skin whitening properties and favorable safety profiles from a series of marine related natural products, which were isolated from Formosan soft coral Cladiella australis. Our results indicated that 4-(phenylsulfanyl)butan-2-one could successfully inhibit pigment generation processes in mushroom tyrosinase platform assay, probably through the suppression of tyrosinase activity to be a non-competitive inhibitor of tyrosinase. In cell-based viability examinations, it demonstrated low cytotoxicity on melanoma cells and other normal human cells...
August 26, 2015: International Journal of Molecular Sciences
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