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Chemical peeling

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https://www.readbyqxmd.com/read/28229524/dermal-morphological-changes-following-salicylic-acid-peeling-and-microdermabrasion
#1
Amira A Abdel-Motaleb, Eman E Abu-Dief, Mahmoud Ra Hussein
BACKGROUND: Microdermabrasion and chemical peeling are popular, inexpensive, and safe methods for treatment of some skin disorders and to rejuvenate skin. OBJECTIVES: To study the alterations of the dermal connective tissue following salicylic acid peeling and microdermabrasion. METHODS: Twenty patients were participated in our study. All participants underwent facial salicylic acid 30% peel or microdermabrasion (10 cases in each group) weekly for 6 weeks...
February 22, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28221859/effects-of-methanolic-pomegranate-peel-extract-on-the-chemical-sensory-textural-and-microbiological-properties-of-gutted-rainbow-trout-oncorhynchus-mykiss-during-frozen-storage
#2
Enayat Berizi, Seyed Shahram Shekarforoush, Saeid Hosseinzadeh
The effects of methanolic pomegranate peel extract (MPPE) on the quality of gutted rainbow trout ( Oncorhynchus mykiss ) were examined periodically during 6 months of storage at -18°C. Fresh samples were dipped (ratio of fish to liquid, 1:2 [wt/vol]) in sterile water or in sterile water containing 1, 2, or 4% (wt/vol) MPPE and packed in low-density polyethylene pouches. The control and treated samples were analyzed monthly for microbiological, chemical, sensory, and textural characteristics. Microbial growth in samples was significantly reduced by MPPE treatment (P < 0...
October 2016: Journal of Food Protection
https://www.readbyqxmd.com/read/28210390/a-case-of-lichen-planus-pigmentosus-with-facial-dyspigmentation-responsive-to-combination-therapy-with-chemical-peels-and-topical-retinoids
#3
Marisa Wolff, Nina Sabzevari, Charles Gropper, Cindy Hoffman
Lichen planus pigmentosus is a photodistributed dyschromia of unknown etiology described clinically as hyperpigmented gray-blue or brown-black macules or patches in a photodistributed pattern. Although there has been some debate, lichen planus pigmentosus is considered by many to be a separate diagnostic entity from ashy dermatosis or erythema dyschromicum perstans, which shares similar characteristics. Various treatment strategies have been applied to help resolve or improve the appearance of lichen planus pigmentosus lesions; however, an optimal treatment method is yet to be elucidated...
November 2016: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/28193402/bioactives-from-fruit-processing-wastes-green-approaches-to-valuable-chemicals
#4
REVIEW
Jhumur Banerjee, Ramkrishna Singh, R Vijayaraghavan, Douglas MacFarlane, Antonio F Patti, Amit Arora
Fruit processing industries contribute more than 0.5billion tonnes of waste worldwide. The global availability of this feedstock and its untapped potential has encouraged researchers to perform detailed studies on value-addition potential of fruit processing waste (FPW). Compared to general food or other biomass derived waste, FPW are found to be selective and concentrated in nature. The peels, pomace and seed fractions of FPW could potentially be a good feedstock for recovery of bioactive compounds such as pectin, lipids, flavonoids, dietary fibres etc...
June 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28191939/phytochemical-profiles-of-new-red-fleshed-apple-varieties-compared-with-traditional-and-new-white-fleshed-varieties
#5
David Bars-Cortina, Alba Macià, Ignasi Iglesias, Maria Paz Romero, Maria José Motilva
This study is an exhaustive chemical characterization of the phenolic compounds, triterpenes, and organic and ascorbic acids in red-fleshed apple varieties obtained by different breeding programs and using five traditional and new white-fleshed apple cultivars as reference. To carry out these analyses, solid-liquid extraction (SLE) and ultraperformance liquid chromatography coupled to tandem mass spectrometry (UPLC-MS/MS) were used. The results showed that the red-fleshed apples contained, in either the flesh or peel, higher amounts of phenolic acids (chlorogenic acid), anthocyanins (cyanidin-3-O-galactoside), dihydrochalcones (phloretin xylosyl glucoside), and organic acids (malic acid) but a lower amount of flavan-3-ols than the white-fleshed apples...
February 13, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28190351/insights-into-cryoprotective-roles-of-carrageenan-oligosaccharides-in-peeled-whiteleg-shrimp-litopenaeus-vannamei-during-frozen-storage
#6
Bin Zhang, Hui-Cheng Yang, He Tang, Gui-Juan Hao, Yang-Yang Zhang, Shang-Gui Deng
The cryoprotective effects of carrageenan oligosaccharides on peeled whiteleg shrimp were investigated and compared with sodium pyrophosphate treatment during frozen storage, primarily the interaction mechanisms between oligosaccharides and shrimp myosin. Data revealed significant profitable effects on water-holding capacity and textural variables in oligosaccharide-treated shrimp compared to the control. Chemical analyses showed that these saccharides maintained a higher myofibrillar protein content and Ca2+-ATPase activity in frozen shrimp...
February 13, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28181613/in-situ-mechanical-investigation-of-carbon-nanotube-graphene-junction-in-three-dimensional-carbon-nanostructures
#7
Yingchao Yang, Nam Dong Kim, Vikas Varshney, Sangwook Sihn, Yilun Li, Ajit K Roy, James M Tour, Jun Lou
Hierarchically organized three-dimensional (3D) carbon nanotubes/graphene (CNTs/graphene) hybrid nanostructures hold great promises in composite and battery applications. Understanding the junction strength between CNTs and graphene is crucial for utilizing such special nanostructures. Here, in situ pulling an individual CNT bundle out of graphene is carried out for the first time using a nanomechanical tester developed in-house, and the measured junction strength of CNTs/graphene is 2.23 ± 0.56 GPa. The post transmission electron microscopy (TEM) analysis of remained graphene after peeling off CNT forest confirms that the failure during pull-out test occurs at the CNT-graphene junction...
February 9, 2017: Nanoscale
https://www.readbyqxmd.com/read/28170233/polyphenol-and-ellagitannin-constituents-of-jabuticaba-myrciaria-cauliflora-and-chemical-variability-at-different-stages-of-fruit-development
#8
Luciane Dias Pereira, João Marcos Gonçalves Barbosa, Antonio Jorge Ribeiro da Silva, Pedro Henrique Ferri, Suzana Costa Santos
A new ellagitannin named cauliflorin (1), seven known hydrolyzable tannins (2-8), and six known phenolics (9-14) were isolated from jabuticaba. Compounds 2-8 had not been previously isolated from M. cauliflora fruits. The jabuticaba fruit was analyzed at four developmental stages for ellagitannins 1, 3, 7, and 8, phenolic acids 11 and 12, anthocyanins, organic acids, and sugars via HPLC-UV-DAD and NMRq. The content of ellagitannins and organic acids declined during fruit development, whereas at full ripeness sugar and anthocyanin levels underwent a sharp increase and were mainly constituted by fructose and cyanidin-3-O-glucose, respectively...
February 7, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28169365/quality-evaluation-focusing-on-tissue-fractal-dimension-and-chemical-changes-for-frozen-tilapia-with-treatment-by-tangerine-peel-extract
#9
Qi He, Zhao Yang, Bin Gong, Jingjing Wang, Kaijun Xiao, Shang-Tian Yang
This work aimed to establish an effective approach to evaluate the quality of frozen fish, focusing on changes in fish tissue structure and chemical composition during storage. Fresh tilapia samples were treated by coating with tangerine peel (TP) extract and then stored at -4, -8 and -18 °C, respectively, for 40 days. The frozen fish tissues were analyzed for structural and chemical changes. Fractal dimension, which quantifies the porous structure formed in the tissue samples, texture properties including hardness and springiness, and moisture content and water activity all decreased during the storage, while the extents of lipid oxidation, measured as peroxide value and thiobarbituric acid concentration, and protein degradation, monitored with total volatile basic nitrogen and trichloroacetic acid soluble peptides, increased...
February 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28163456/outcome-of-dermal-grafting-in-the-management-of-atrophic-facial-scars
#10
Kanathur Shilpa, S Sacchidanand, Budamakuntla Leelavathy, Padmanabha Shilpashree, Gorur Divya, Rammurthy Ranjitha, D V Lakshmi
BACKGROUND: Scars over the face are cosmetically and psychologically disturbing. Various techniques have been described and are being practiced in the management of these scars. AIMS AND OBJECTIVES: This study was undertaken to study the safety, effectiveness of using dermal grafts as fillers in the management of facial scars due to acne, chickenpox, trauma or any others. MATERIALS AND METHODS: Fifteen patients with atrophic facial scars of varied aetiology and willing for surgery were considered for dermal graft technique...
October 2016: Journal of Cutaneous and Aesthetic Surgery
https://www.readbyqxmd.com/read/28151825/current-trends-in-upper-and-lower-eyelid-blepharoplasty-among-american-society-of-ophthalmic-plastic-and-reconstructive-surgery-members
#11
Andrea L Kossler, Grace L Peng, Donald B Yoo, Babak Azizzadeh, Guy G Massry
PURPOSE: To assess current practice patterns for management of upper and lower eyelid blepharoplasty by active American Society of Ophthalmic Plastic and Reconstructive Surgery members. METHODS: An invitation to participate in a web-based anonymous survey was sent to the active American Society of Ophthalmic Plastic and Reconstructive Surgery membership via email. The survey consists of 34 questions, both multiple choice and free response, regarding upper and lower eyelid blepharoplasty surgery...
February 1, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28124823/synthesis-of-fdca-esters-without-concomitant-levulinic-acid-formation-starting-from-non-food-feedstocks
#12
Frits van der Klis, Jacco van Haveren, Daan S van Es, Harry Bitter
5-(Hydroxymethyl)-furfural (HMF) is a versatile intermediate in biomass conversion pathways, however the notoriously unstable nature of HMF imposes challenges to design selective routes to chemicals like furan-2,5-dicarboxylic acid (FDCA). Here we present a new strategy for obtaining furans, bypassing the formation of the unstable HMF. Instead of starting with glucose/fructose and thus forming HMF as an intermediate, the new route starts from uronic acids, which are abundantly present in many agro residues like e...
January 26, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28097306/universal-trichloroacetic-acid-peel-technique-for-light-and-dark-skin
#13
Nabil Fanous, Shadi Zari
Importance: Despite their great potential, medium and deep trichloroacetic acid peels are underused in light-skinned patients and are rarely used in darker-skinned patients because of the widespread fear of pigmentary complications and scarring. This concern has led many physicians to opt for the use of lighter types of peels (glycolic acid peel, Jessner peel, etc) and different lasers and intense light technologies. Trichloroacetic acid peels have been described in numerous publications...
January 12, 2017: JAMA Facial Plastic Surgery
https://www.readbyqxmd.com/read/28095556/combination-therapy-for-acne-scarring-personal-experience-and-clinical-suggestions
#14
Lucija Kroepfl, Jason J Emer
Acne is one of the most prevalent skin conditions seen by dermatologists. The cosmetic sequelae of severe acne, including scarring and pigmentation, have a profound psychological impact on those in icted. Topical (eg, retinoids, antibiotics, dapsone, hydroxyacids) and oral treatments (eg, antibiotics and/or spironolactone) are often bene cial to control acne or in the instance of oral isotretinoin use, rid the acne permanently; however, these treatments have very little affect on the ultimate cosmetic outcome of the acne scarring and skin texture that results...
November 1, 2016: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28035161/composition-bioactive-compounds-and-antioxidant-activity-of-common-indian-fruits-and-vegetables
#15
Jatinder Pal Singh, Amritpal Kaur, Khetan Shevkani, Narpinder Singh
The present work was undertaken to evaluate the chemical composition (proximate, minerals and dietary fibre), colour parameters, antioxidant activity and polyphenol profiles of different fruits (pomegranate, kinnow, mango, banana, jambolan, grapes and sapodilla) and vegetables (beetroot, brinjal, orange carrot, bitter gourd, mentha and spinach). The amount of insoluble dietary fibre was higher than soluble dietary fibre for all fruits and vegetables. Vegetables showed superior mineral composition (higher amounts of K, Ca and Fe) as compared to fruits...
November 2016: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28032110/chemical-compositions-of-the-peel-essential-oil-of-citrus-aurantium-and-its-natural-larvicidal-activity-against-the-malaria-vector-anopheles-stephensi-diptera-culicidae-in-comparison-with-citrus-paradisi
#16
Alireza Sanei-Dehkordi, Mohammad Mehdi Sedaghat, Hassan Vatandoost, Mohammad Reza Abai
BACKGROUND: Recently, essential oils and extracts derived from plants have received much interest as potential bio-active agents against mosquito vectors. METHODS: The essential oils extract from fresh peel of ripe fruit of Citrus aurantium and Citrus paradisi were tested against mosquito vector Anopheles stephensi (Diptera: Culicidae) under laboratory condition. Then chemical composition of the essential oil of C. aurantium was analyzed using gas chromatography-mass spectrometry (GC-MS)...
December 2016: Journal of Arthropod-borne Diseases
https://www.readbyqxmd.com/read/28027251/evidence-based-medicine-a-graded-approach-to-lower-lid-blepharoplasty
#17
Ahmed M Hashem, Rafael A Couto, Joshua T Waltzman, Richard L Drake, James E Zins
LEARNING OBJECTIVES: After studying this article, the participant should be able to: 1. Define the anatomy of the lower eyelid tarsoligamentous framework and the related periorbital retaining ligaments, and cite their surgical relevance. 2. Perform a systematic functional and aesthetic evaluation of the lower eyelid focusing on the lid-cheek junction, and clinical tests that predict the need for lateral canthal tightening. 3. Enumerate the different approaches to lower eyelid rejuvenation and discuss their merits/limitations...
January 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28012181/randomized-controlled-trial-comparing-35-trichloroacetic-acid-peel-and-5-aminolevulinic-acid-photodynamic-therapy-for-the-treatment-of-multiple-actinic-keratosis
#18
G Holzer, A Pinkowicz, S Radakovic, J B Schmidt, A Tanew
BACKGROUND: Photodynamic therapy (PDT) and chemical peels with trichloroacetic acid (TCA) can be applied to larger skin areas and thus are suitable treatment options for patients with multiple actinic keratosis (AK). Despite its long use TCA has, however, only been investigated rarely in this indication. OBJECTIVES: This randomized, observer-blinded, intrapatient comparison study sought to investigate the efficacy and safety of 35% TCA versus 20% aminolevulinic acid PDT (ALA PDT) in patients with extensive field cancerisation and multiple AK in the face or on the scalp...
December 23, 2016: British Journal of Dermatology
https://www.readbyqxmd.com/read/28004257/literature-review-of-cosmetic-procedures-in-men-approaches-and-techniques-are-gender-specific
#19
REVIEW
Brandon E Cohen, Sameer Bashey, Ashley Wysong
The proportion of men receiving non-surgical cosmetic procedures has risen substantially in recent years. Various physiologic, anatomic, and motivational considerations differentiate the treatments for male and female patients. Nevertheless, research regarding approaches to the male cosmetic patient is scarce. We sought to provide an overview and sex-specific discussion of the most popular cosmetic dermatologic procedures pursued by men by conducting a comprehensive literature review pertaining to non-surgical cosmetic procedures in male patients...
December 21, 2016: American Journal of Clinical Dermatology
https://www.readbyqxmd.com/read/27998025/effect-of-different-types-of-therapeutic-trauma-on-vitiligo-lesions
#20
Medhat El Mofty, Samia Esmat, Nahla Hunter, Heba M Mashaly, Dina Dorgham, Olfat Shaker, Sarah Ibrahim
New treatment modalities for vitiligo acting by changing certain cytokines and metalloproteinases are newly emerging. The aim of this work is to To assess the efficacy of trichloroacetic acid (TCA) chemical peel, dermapen, and fractional CO2 laser in treatment of stable non-segmental vitiligo and to detect their effects on IL-17 and MMP-9 levels. Thirty patients with stable vitiligo were recruited in a randomized controlled study. They were randomly categorized into three equal groups. Group 1: TCA peel, Group 2: dermapen machine, and Group 3: Fractional CO2 laser...
December 20, 2016: Dermatologic Therapy
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