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Chemical peeling

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https://www.readbyqxmd.com/read/28299301/solution-of-azelaic-acid-20-resorcinol-10-and-phytic-acid-6-versus-glycolic-acid-50-peeling-agent-in-the-treatment-of-female-patients-with-facial-melasma
#1
Gita Faghihi, Azam Taheri, Zabihollah Shahmoradi, Mohammad Ali Nilforoushzadeh
BACKGROUND: Melasma, a common acquired disorder of hyperpigmentation, especially in women, is often resistant to therapy. This study was aimed to evaluate the efficacy and safety of azelaic acid, resorcinol and phytic acid solution in chemical peeling of melasma in comparison to 50% glycolic acid. MATERIALS AND METHODS: This clinical trial was performed, on 42 female patients with bilateral melasma. Severity of melasma was assessed by melasma area and severity index (MASI)...
2017: Advanced Biomedical Research
https://www.readbyqxmd.com/read/28292018/vitis-vinifera-peel-and-seed-gold-nanoparticles-exhibit-chemopreventive-potential-antioxidant-activity-and-induce-apoptosis-through-mutant-p53-bcl-2-and-pan-cytokeratin-down-regulation-in-experimental-animals
#2
J Grace Nirmala, R T Narendhirakannan
Several studies suggest surface modifications of gold nanoparticles (AuNPs) by capping agents or surface coatings could play an important role in biological systems, and site directed delivery. The present study was carried out to assess the antioxidant and apoptotic activities of the Vitis vinifera peel and seed gold nanoparticles in experimentally induced cancer in Swiss albino mice. 12-dimethylbenz [a] anthracene (DMBA) (single application) and 12-O-tetradecanoylphorbol 13-acetate (TPA) (thrice a week) were applied on the dorsal area of the skin to induce skin papillomagenesis in Swiss albino mice for 16 weeks...
March 7, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28274866/application-of-fungal-chitosan-incorporated-with-pomegranate-peel-extract-as-edible-coating-for-microbiological-chemical-and-sensorial-quality-enhancement-of-nile-tilapia-fillets
#3
Mohammed S Alsaggaf, Shaaban H Moussa, Ahmed A Tayel
Fish are generous sources for providing man with his essential nutritional requirements, but the extreme susceptibility to quality deterioration hinders their optimal usage and storage. Natural derivatives are always the perfect alternatives for food preservation. The application of fungal chitosan (Ch), from Aspergillus niger, and pomegranate peel extract (PPE), in coating films for Nile tilapia (Oreochromis niloticus) fillets preservation ‎and maintaining their microbiological, chemical and sensorial quality during cooled storage at 4°C for 30days, was investigated...
March 6, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28274356/chemical-peels-in-active-acne-and-acne-scars
#4
Georgios Kontochristopoulos, Eftychia Platsidaki
Chemical peeling is a widely used procedure in the management of acne and acne scars. It causes controlled destruction of a part of or the entire epidermis, with or without the dermis, leading to exfoliation and removal of superficial lesions, followed by regeneration of new epidermal and dermal tissues. The most frequently used peeling agents are salicylic acid, glycolic acid, pyruvic acid, lactic acid, mandelic acid, Jessner solution, trichloroacetic acid, and phenol. The appropriate peel is chosen based on the patient's skin type, acne activity, and type of acne scars...
March 2017: Clinics in Dermatology
https://www.readbyqxmd.com/read/28272042/utilization-of-two-agrowastes-for-adsorption-and-removal-of-methylene-blue-kinetics-and-isotherm-studies
#5
Manash Deep Dey, Minhaz Ahmed, Ranjana Singh, Ratan Boruah, Rupak Mukhopadhyay
Fresh water streams contaminated with synthetic dye-containing effluents pose a threat to aquatic and human life either by preventing aquatic photosynthesis or by entering into the food chain. Adsorptive removal of such dyes with potent biosorbents is an important technique to reduce bioaccumulation and biomagnifications of the dyes in human life. We report use of betel nut (BN) husk and banana peel (BP), two most abundant ligno-cellulosic wastes, as efficient adsorbents for the removal of the basic dye methylene blue (MB)...
March 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/28239840/melasma-systematic-review-of-the-systemic-treatments
#6
REVIEW
Linghong Linda Zhou, Akerke Baibergenova
Currently available treatment options for melasma include prevention of UV radiation, topical lightening agents, chemical peels, and light-based and laser therapies. However, none have shown effective and sustained results, with incomplete clearance and frequent recurrences. There has been increasing interest recently in oral medications and dietary supplements in improving melasma. We sought to evaluate the efficacy and safety/tolerability of oral medications and dietary supplements for the treatment of melasma...
February 27, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/28229524/dermal-morphological-changes-following-salicylic-acid-peeling-and-microdermabrasion
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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 Ca(2+)-ATPase activity in frozen shrimp...
February 17, 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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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