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Chemical peels

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https://www.readbyqxmd.com/read/29767467/treatment-of-periorbital-dark-circles-comparative-study-of-carboxy-therapy-vs-chemical-peeling-vs-mesotherapy
#1
Naglaa A Ahmed, Salma S Mohammed, Mohammad I Fatani
OBJECTIVE: Evaluation and comparison of the efficacy and safety of 3 different modalities of treatment for dark circles that function via different modes of action. METHODS: In total, 45 female patients with periorbital hyperpigmentation were randomly selected to participate from those attending the outpatient dermatology clinic of Al-Zahraa University Hospital within a 6-month period. Patients were divided into 3 groups, and the groups were subjected to different types of therapy: group A, carboxy therapy; group B, chemical peel; and group C, vitamin C mesotherapy...
May 16, 2018: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/29721792/efficient-removal-of-cadmium-from-soil-washing-effluents-by-garlic-peel-biosorbent
#2
Jiangang Sun, Xiaohui Li, Xianbin Ai, Junyou Liu, Yanli Yin, Ying Huang, Hongyu Zhou, Kai Huang
Paddy field soil contaminated by cadmium may produce cadmium-contained corns causing Itai-itai disease, and in situ washing of soil with the organic acid is a good technical choice due to its convenience and cost-effectiveness. While the bottleneck of this technique is how to recycle the huge volume of washing effluent in an efficient and economical way. Biosorption of cadmium on the garlic peel was attempted in present study and it was found quite satisfactorily effective to remove all cadmium from the real soil leaching effluent after three-time sequential adsorption...
May 2, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29717519/antidiarrheal-effect-of-bioactivity-guided-fractions-and-bioactive-components-of-pomegranate-punica-granatum-l-peels
#3
S-S Zhao, D-X Ma, Y Zhu, J-H Zhao, Y Zhang, J-Q Chen, Z-L Sheng
BACKGROUND: Pomegranate peels have been widely used to treat diarrhea in China. The antidiarrheal activities of aqueous extracts of pomegranate peels have been evaluated. However, there have not been any bioactivity-guided fractionation studies on the antidiarrheal effect to identify the bioactive components of the extract. METHODS: Bioactivity-guided fractionation of an aqueous extract of pomegranate peels was performed using different solvents of increasing polarity, generating fractions dissolved in ethyl acetate, n-butyl alcohol, and the residual fraction...
May 2, 2018: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/29715052/antiproliferative-activity-of-extracts-of-campomanesia-adamantium-cambess-o-berg-and-isolated-compound-dimethylchalcone-against-b16-f10-murine-melanoma
#4
Magalli C B Lima E Silva, Danielle Bogo, Caroline A F Alexandrino, Renata T Perdomo, Patrícia de O Figueiredo, Pamela R do Prado, Fernanda R Garcez, Monica C T Kadri, Thalita V N Ximenes, Rita de Cassia A Guimarães, Ulana C Sarmento, Maria Lígia R Macedo
Campomanesia adamantium, a native species of the Brazilian Cerrado, is characterized as a natural source of phenolic compounds and has known potential anticancer activities. This study aimed to evaluate the chemical profile of dichloromethane extracts of pulp (DEGPU) and peel (DEGPE) from the fruits of C. adamantium and to identify compounds with antiproliferative effects in vitro against melanoma cells by sulforhodamine B (SRB) assay, apoptosis induction assay, caspase-3 activation assay, nitric oxide (NO) release in coculture of B16-F10 cells and murine peritoneal macrophages...
May 1, 2018: Journal of Medicinal Food
https://www.readbyqxmd.com/read/29713841/comparative-study-using-fractional-carbon-dioxide-laser-versus-glycolic-acid-peel-in-treatment-of-pseudo-acanthosis-nigricans
#5
N S Zaki, R F Hilal, R M Essam
Pseudo-acanthosis nigricans is a common dermatological disorder that is usually difficult to treat secondary to maceration of the skin from excessive sweating, obesity, or associated with endocrine disorders. Fractional photothermolysis and chemical peeling have been reported to improve the condition. To determine whether fractional CO2 laser resurfacing or glycolic acid peel is more effective and safe option for therapy. Twenty Egyptian patients were included in the study where each patient was subjected to three sessions of both fractional CO2 on the right side of the neck and glycolic acid peel 70% on the left side of the neck...
April 30, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29706324/edible-coatings-incorporating-pomegranate-peel-extract-and-biocontrol-yeast-to-reduce-penicillium-digitatum-postharvest-decay-of-oranges
#6
Samira Kharchoufi, Lucia Parafati, Fabio Licciardello, Giuseppe Muratore, Mokthar Hamdi, Gabriella Cirvilleri, Cristina Restuccia
This study investigated the potential use of two edible coatings, chitosan (CH) and locust bean gum (LBG), which incorporated chemically characterized water pomegranate peel extract (WPPE) or methanol pomegranate peel extract (MPPE) and the biocontrol agent (BCA) Wickerhamomyces anomalus, to control the growth of Penicillium digitatum and to reduce the postharvest decay of oranges. CH and LBG including pomegranate peel extracts (PPEs) at different concentrations were tested in vitro against P. digitatum to determine their antifungal efficacy; at the same time, the tolerance of viable cells of W...
September 2018: Food Microbiology
https://www.readbyqxmd.com/read/29705755/chemical-peels-for-acne-vulgaris-a-systematic-review-of-randomised-controlled-trials
#7
Xiaomei Chen, Sheng Wang, Ming Yang, Li Li
OBJECTIVE: We evaluated current evidence from randomised controlled trials (RCTs) regarding the effectiveness of chemical peeling for treating acne vulgaris. METHODS: Standard Cochrane methodological procedures were used. We searched MEDLINE, Cochrane Central Register of Controlled Trials and EMBASE via OvidSP through April 2017. Reviewers independently assessed eligibility, risk of bias and extracted data. RESULTS: Twelve RCTs (387 participants) were included...
April 28, 2018: BMJ Open
https://www.readbyqxmd.com/read/29705321/a-novel-two-step-ultrasound-post-assisted-lye-peeling-regime-for-tomatoes-reducing-pollution-while-improving-product-yield-and-quality
#8
Ruiping Gao, Fayin Ye, Zhiqiang Lu, Jiajia Wang, Xiao Li Shen, Guohua Zhao
In this paper, the effects and mechanisms of a novel two-step tomato peeling method, hot lye with a post-assistance of ultrasound, were investigated. The present work aims to improve the environmental friendliness of the conventional hot lye tomato peeling method (10% w/v, 97 °C, 45 s). The results showed that 4% (w/v) lye treatment at 97 °C for 30 s with a post-assistance of a 31.97 W/L ultrasound treatment at 70 °C for 50 s achieved a 100% peelability. In this scenario, the peeling yield and lycopene content in the peeled product were significantly higher than the peeling yield and lycopene content with the conventional hot lye peeling method...
July 2018: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/29704876/katharsis-of-the-skin-peeling-applications-and-agents-of-chemical-peelings-in-greek-medical-textbooks-of-graeco-roman-antiquity
#9
F Ursin, F Steger, C Borelli
BACKGROUND: Recipes for peelings date back to medical texts of old Egypt. The oldest medical papyri contain recipes for "improving beauty of the skin" and "removing wrinkles" by use of agents like salt and soda. The Egyptian Queen Cleopatra (69-30 BC) is said to have taken bathes in donkey's milk in order to improve the beauty of her skin. However, little is known about other agents and peeling applications in later Greek medical textbooks. OBJECTIVE: We will discover new agents and describe ancient peeling applications...
April 28, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29701757/rapid-and-sensitive-quantification-of-ursolic-acid-and-oleanolic-acid-in-human-plasma-using-ultra-performance-liquid-chromatography-mass-spectrometry
#10
Larissa Stebounova, Scott M Ebert, Logan T Murry, Christopher M Adams, Daryl J Murry
Ultra-performance liquid chromatography (UPLC) interfaced with atmospheric pressure chemical ionization mass-spectrometry was used to separate and quantify ursolic acid (UA) and oleanolic acid (OA) in human plasma. UA and OA were extracted from 0.5 mL human plasma using supported liquid extraction and separated utilizing an Acquity UPLC HSS column. The method has been validated for both UA and OA quantitation with a limit of detection of 0.5 ng/mL. The UPLC separations are carried out with isocratic elution with methanol and 5 mM ammonium acetate in water (85:15) as a mobile phase at a flow rate of 0...
April 26, 2018: Journal of Chromatographic Science
https://www.readbyqxmd.com/read/29688581/effect-of-led-irradiation-on-the-ripening-and-nutritional-quality-of-postharvest-banana-fruit
#11
Jen-Yi Huang, Fengying Xu, Weibiao Zhou
BACKGROUND: With the ability to tailor wavelengths necessary to the photosynthetically active radiation spectrum of plant pigments, light-emitting diodes (LEDs) offer vast possibilities in horticultural lighting. The influence of LED light irradiation on major postharvest features of banana was investigated. Mature green bananas were treated daily with selected blue (464-474 nm), green (515-525 nm) and red (617-627 nm) LED lights for 8 days, and compared with non-illuminated control. RESULTS: The positive effect of LED lighting on the acceleration of ripening in bananas was greatest for blue, followed by red and green...
April 24, 2018: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29677783/investigation-of-surface-properties-of-fluorocarbon-films-produced-using-plasma-techniques
#12
Se-Bi Jung, Youn-Jeong Cho, Jihye Lee, Kang-Bong Lee, Yeonhee Lee
Different fluorocarbon thin films were deposited on Si substrates using two different plasma polymerization methods. Fluorine-containing hydrophobic thin films were obtained using inductively coupled plasma (ICP) and capacitively coupled plasma (CCP) with a mixture of fluorocarbon precursors (C2F6, C3F8, or c-C4F8) and an unsaturated hydrocarbon (C2H2). Different process parameters for plasma polymerization (e.g., processing time) were used to generate various fluorocarbon thin films. The hydrophobic properties and mechanical properties of the new products were measured using a profilometer, water contact angle measurements, pencil hardness, and a 90° peel test...
September 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29657672/efficacy-and-safety-evaluation-of-high-density-intense-pulsed-light-in-the-treatment-of-grades-ii-and-iv-acne-vulgaris-as-monotherapy-in-dark-skinned-women-of-child-bearing-age
#13
Ajay J Deshpande
Background: Acne vulgaris is a self-limiting, chronic inflammatory disorder of the pilosebaceous unit characterized by exacerbations and remissions. It is often the early manifestation of puberty, and in girls it appears relatively early. In women, acne tends to become aggravated during the menstrual period, pregnancy, and in those who are on progesterone. Acne treatment is divided into two parts: topical and systemic. For Grades 1 and 2 acne, topical treatment is sufficient, while for Grades 3 and 4 acne, systemic drugs such as tetracyclines and retinoids are required to control the symptoms...
April 2018: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/29618924/bio-based-synthesis-of-silver-nanoparticles-from-orange-waste-effects-of-distinct-biomolecule-coatings-on-size-morphology-and-antimicrobial-activity
#14
Caio Henrique Nasi de Barros, Guilherme Crispim Faria Cruz, Willian Mayrink, Ljubica Tasic
Purpose: Despite the numerous reports on biological syntheses of silver nanoparticles (AgNPs), little is known about the composition of their capping agents, protein corona of plant extract-mediated synthesis, and their influence on the properties of AgNPs. Here, orange ( Citrus sinensis ) waste was utilized as a source of an extract for AgNP synthesis (the protein corona composition of which was elucidated), and also as a starting material for hesperidin and nanocellulose extraction, which were used for bio-based AgNP synthesis...
2018: Nanotechnology, Science and Applications
https://www.readbyqxmd.com/read/29616266/laser-inscription-of-pseudorandom-structures-for-microphotonic-diffuser-applications
#15
Tawfiq Alqurashi, Abdulla Alhosani, Mahmoud Dauleh, Ali K Yetisen, Haider Butt
Optical diffusers provide a solution for a variety of applications requiring a Gaussian intensity distribution including imaging systems, biomedical optics, and aerospace. Advances in laser ablation processes have allowed the rapid production of efficient optical diffusers. Here, we demonstrate a novel technique to fabricate high-quality glass optical diffusers with cost-efficiency using a continuous CO2 laser. Surface relief pseudorandom microstructures were patterned on both sides of the glass substrates...
April 4, 2018: Nanoscale
https://www.readbyqxmd.com/read/29603216/ohmic-heating-assisted-lye-peeling-of-pears
#16
Sarvesh Gupta, Sudhir K Sastry
Currently, high concentrations (15% to 18%) of lye (sodium hydroxide) are used in peeling pears, constituting a wastewater handling and disposal problem for fruit processors. In this study, the effect of ohmic heating on lye peeling of pears was investigated. Pears were peeled using 0.5%, 1%, 2%, and 3% NaOH under different electric field strengths at two run times and their peeled yields were compared to that obtained at 2% and 18% NaOH with conventional heating. Results revealed that ohmic heating results in greater than 95% peeled yields and the best peel quality at much lower concentrations of lye (2% NaOH at 532 V/m and 3% NaOH at 426 and 479 V/m) than those obtained under conventional heating conditions...
March 30, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29601621/prospective-randomized-investigator-blinded-split-face-evaluation-of-a-topical-crosslinked-hyaluronic-acid-serum-for-post-procedural-improvement-of-skin-quality-and-biomechanical-attributes
#17
Hema Sundaram, Angnieszka Cegielska, Agnieszka Wojciechowska, Patrice Delobel
BACKGROUND: This split-face, controlled study investigated the ability of a topical crosslinked hyaluronic acid formulation (RHA serum) to enhance clinical results from fillers, microneedling, or chemical peeling of aging skin. Previous comparative skin explant studies demonstrated greater efficacy of RHA serum than topical non-crosslinked high or low molecular weight hyaluronic acid in decreasing trans-epidermal water loss, increasing epidermal hydration, and improving corneocyte microstructure...
April 1, 2018: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/29589909/material-independent-nano-transfer-onto-a-flexible-substrate-using-mechanical-interlocking-structure
#18
Min-Ho Seo, Seon-Jin Choi, Sang Hyun Park, Jae-Young Yoo, Sung Kyu Lim, Jae-Shin Lee, Kwang-Wook Choi, Min-Seung Jo, Il-Doo Kim, Jun-Bo Yoon
Nanowire-transfer technology has received much attention thanks to its capability to fabricate high-performance flexible nano-devices with high simplicity and throughput. However, it is still challenging to extend the conventional nanowire-transfer method to the fabrication of a wide range of devices since a chemical-adhesion-based nanowire-transfer mechanism is complex and time-consuming, hindering successful transfer of diverse nanowires made of various materials. Here, we introduce a material-independent mechanical-interlocking based nanowire-transfer (MINT) method, fabricating ultralong and fully aligned nanowires on a large flexible substrate (2...
March 28, 2018: ACS Nano
https://www.readbyqxmd.com/read/29581573/all-organic-superhydrophobic-coatings-with-mechanochemical-robustness-and-liquid-impalement-resistance
#19
Chaoyi Peng, Zhuyang Chen, Manish K Tiwari
Superhydrophobicity is a remarkable evolutionary adaption manifested by several natural surfaces. Artificial superhydrophobic coatings with good mechanical robustness, substrate adhesion and chemical robustness have been achieved separately. However, a simultaneous demonstration of these features along with resistance to liquid impalement via high-speed drop/jet impact is challenging. Here, we describe all-organic, flexible superhydrophobic nanocomposite coatings that demonstrate strong mechanical robustness under cyclic tape peels and Taber abrasion, sustain exposure to highly corrosive media, namely aqua regia and sodium hydroxide solutions, and can be applied to surfaces through scalable techniques such as spraying and brushing...
April 2018: Nature Materials
https://www.readbyqxmd.com/read/29571457/a-multi-methodological-approach-in-the-study-of-italian-pdo-cornetto-di-pontecorvo-red-sweet-pepper
#20
Anatoly P Sobolev, Luisa Mannina, Donatella Capitani, Gabriella Sanzò, Cinzia Ingallina, Bruno Botta, Simonetta Fornarini, Maria Elisa Crestoni, Barbara Chiavarino, Simone Carradori, Marcello Locatelli, Anna Maria Giusti, Giovanna Simonetti, Giuliana Vinci, Raffaella Preti, Chiara Toniolo, Massimo Reverberi, Marzia Scarpari, Alessia Parroni, Lorena Abete, Fausta Natella, Antonella Di Sotto
A multi-methodological approach was applied to study red sweet peppers (Capsicum annuum L.) ecotype "Cornetto di Pontecorvo" grown in a greenhouse or in open field. This approach includes morphological analysis, chemical composition determination, and biological activity evaluation of different extracts from pepper fruits. Untargeted analyses, namely NMR spectroscopy and mass spectrometry, allowed the comprehensive pepper metabolite profile of pepper pulp, peel and seeds hydroalcoholic and organic extracts to be determined, showing the presence of sugars, organic acids, amino acids and other secondary metabolites...
July 30, 2018: Food Chemistry
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