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https://www.readbyqxmd.com/read/28110351/determining-lead-cadmium-and-mercury-in-cosmetics-using-sweeping-via-dynamic-chelation-by-capillary-electrophoresis
#1
Kuan-Ling Chen, Shiuh-Jen Jiang, Yen-Ling Chen
International limits have been established for metal impurities in cosmetics to prevent overexposure to heavy metal ions. Sweeping via dynamic chelation was developed using capillary electrophoresis to analyze lead (Pb), cadmium (Cd) and mercury (Hg) impurities in cosmetics. The sweeping via dynamic chelation mechanism involves a large volume of metal ions being swept by a small quantity of chelating agents that were electrokinetically injected into the capillary to chelate metal ions and increase the detection sensitivity...
January 21, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28109818/identification-of-a-compound-isolated-from-german-chamomile-matricaria-chamomilla-with-dermal-sensitization-potential
#2
Cristina Avonto, Diego Rua, Pradeep B Lasonkar, Amar G Chittiboyina, Ikhlas A Khan
German chamomile is one of the most popular herbal ingredients used in cosmetics and personal care products. Allergic skin reactions following topical application of German chamomile have been occasionally reported, although it is not fully understood which of the chemical constituents is responsible for this adverse effect. In the present work, three candidate sensitizers were isolated from German chamomile based on activity-guided fractionation of chamomile extracts tested using the in vitro KeratinoSens™ assay...
January 18, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28109474/-hidden-scar-submandibular-gland-excision-using-an-endoscope-assisted-hairline-approach
#3
Seung Hoon Woo, Jung Je Park, MinSu Kwon, Jin Pyeong Kim
OBJECTIVES: Endoscope-assisted surgery is becoming the standard and most frequently preferred technique in a number of surgical disciplines because of its advantages of leaving a minimal or concealed postoperative scar compared with the conventional approaches. However, such operations are not yet standard in submandibular gland (SMG) surgery due to the anatomic complexity of this region. MATERIALS AND METHODS: We conducted a prospective comparative analysis of the clinical outcome of patients who underwent SMG resection using the hairline approach versus the conventional transcervical approach...
February 2017: Oral Oncology
https://www.readbyqxmd.com/read/28109215/interplay-between-alkyl-chain-asymmetry-and-cholesterol-addition-in-the-rigid-ion-pair-amphiphile-bilayer-systems
#4
Fong-Yin Huang, Chi-Cheng Chiu
Ion pair amphiphile (IPA), a molecular complex composed of a pair of cationic and anionic surfactants, has been proposed as a novel phospholipid substitute. Controlling the physical stability of IPA vesicles is important for its application developments such as cosmetic and drug deliveries. To investigate the effects of IPA alkyl chain combinations and the cholesterol additive on the structural and mechanical properties of IPA vesicular bilayers, we conducted a series of molecular dynamics studies on the hexadecyltrimethylammonium-dodecylsulfate (HTMA-DS) and dodecyltrimethylammonium-hexadecylsulfate (DTMA-HS) IPA bilayers with cholesterol...
January 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28109001/polygonum-multiflorum-radix-extract-protects-human-foreskin-melanocytes-from-oxidative-stress-in-vitro-and-potentiates-hair-follicle-pigmentation-ex-vivo
#5
Peggy Sextius, Richard Betts, Ishak Benkhalifa, Stéphane Commo, Joan Eilstein, Marco Massironi, Ping Wang, Jean-Francois Michelet, Jie Qiu, Xuezhu Tan, Severine Jeulin
OBJECTIVE: To examine the ability of an extract from traditional Chinese medicine, Polygonum multiflorum Radix, to protect melanocyte viability from oxidative stress, a key mechanism in the initiation and progression of hair greying. METHODS: To assess the antioxidant capacity of Polygonum multiflorum Radix extract, primary human foreskin melanocytes were treated with a commercially available Polygonum multiflorum Radix extract added to culture medium and exposed to hydrogen peroxide (H2 O2 ), using intracellular reactive oxygen species concentrations and glutathione/protein ratios as endpoints...
January 20, 2017: International Journal of Cosmetic Science
https://www.readbyqxmd.com/read/28107722/microalgae-biorefinery-high-value-products-perspectives
#6
Kit Wayne Chew, Jing Ying Yap, Pau Loke Show, Ng Hui Suan, Joon Ching Juan, Tau Chuan Ling, Duu-Jong Lee, Jo-Shu Chang
Microalgae have received much interest as a biofuel feedstock in response to the uprising energy crisis, climate change and depletion of natural sources. Development of microalgal biofuels from microalgae does not satisfy the economic feasibility of overwhelming capital investments and operations. Hence, high-value co-products have been produced through the extraction of a fraction of algae to improve the economics of a microalgae biorefinery. Examples of these high-value products are pigments, proteins, lipids, carbohydrates, vitamins and anti-oxidants, with applications in cosmetics, nutritional and pharmaceuticals industries...
January 10, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28107620/chemical-interaction-of-protein-cysteine-residues-with-reactive-metabolites-of-methyleugenol
#7
Yukun Feng, Hui Wang, Qian Wang, Wenlin Huang, Ying Peng, Jiang Zheng
Methyleugenol (ME), an alkenylbenzene compound, is a natural ingredient of several herbs and is used as flavoring agent in foodstuffs and fragrance in cosmetics. The hepatotoxicity, cytotoxicity, and carcinogenesis of ME have been well documented, and metabolic activation has been suggested to involve in ME-induced toxicities. The objective of this study was to identify chemical identity of interactions of protein with reactive metabolites of ME. Modification of cysteine residues of protein was observed in microsomal incubations and mice after exposure to ME...
January 20, 2017: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/28106696/use-of-acellular-dermal-matrix-in-treatment-of-congenital-muscular-torticollis-in-patients-over-eight-years-of-age
#8
Hyung Min Hahn, Kyung Hoon Cook, Il Jae Lee, Dong Ha Park, Myong Chul Park
BACKGROUND: Treatment for neglected or recurred congenital muscular torticollis should be differentiated from primary patients due to the long-standing adjacent tissue contracture. The aim of this study was to evaluate the effect of acellular dermal matrix (ADM) on surgery of recurred and neglected patients of congenital muscular torticollis. METHODS: Forty-nine patients were included in the study. All patients underwent resection at the distal end of the sternocleidomastoid muscle...
January 18, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28105531/-big-eye-surgery-the-ethics-of-medicalizing-asian-features
#9
Yves Saint James Aquino
The popularity of surgical modifications of race-typical features among Asian women has generated debates on the ethical implications of the practice. Focusing on blepharoplasty as a representative racial surgery, this article frames the ethical discussion by viewing Asian cosmetic surgery as an example of medicalization, which can be interpreted in two forms: treatment versus enhancement. In the treatment form, medicalization occurs by considering cosmetic surgery as remedy for pathologized Asian features; the pathologization usually occurs in reference to western features as the norm...
January 19, 2017: Theoretical Medicine and Bioethics
https://www.readbyqxmd.com/read/28104405/insights-on-in-vitro-models-for-safety-and-toxicity-assessment-of-cosmetic-ingredients
#10
REVIEW
Andreia Almeida, Bruno Sarmento, Francisca Rodrigues
According to the current European legislation, the safety assessment of each individual cosmetic ingredient of any formulation is the basis for the safety evaluation of a cosmetic product. Also, animal testing in the European Union is prohibited for cosmetic ingredients and products since 2004 and 2009, respectively. Additionally, the commercialization of any cosmetic products containing ingredients tested on animal models was forbidden in 2009. In consequence of these boundaries, the European Centre for the Validation of Alternative Methods (ECVAM) proposes a list of validated cell-based in vitro models for predicting the safety and toxicity of cosmetic ingredients...
January 16, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28104093/surgical-management-of-delayed-irreducible-gartland-iii-supracondylar-fractures-in-children-open-reduction-and-internal-fixation-versus-external-fixation
#11
Jin Li, DeHao Fu, Chong Yu, ShangYu Wang, RenHao Ze, Xin Tang
BACKGROUND: Percutaneous pinning has been accepted as the "gold standard" for displaced supracondylar humeral fracture (SHF) in children. However, to secure an anatomic reduction and to reduce the rotated fragment, open reduction is often necessary when there is inadequate stabilization or a satisfactory reduction has failed to be achieved. The study aimed to compare the efficacy of the open reduction and bioabsorbable poly-d,l-lactic acid (PDLLA) pin fixation method with the closed reduction and lateral external fixation method in irreducible delayed Gartland type III SHF in children...
February 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28103978/-cosmetological-thinking-and-methods-in-tcm-in-the-sui-tang-dynasty
#12
Y J Wu
In the heyday of Chinese feudal society, women's status in the society of the Sui-Tang period was improved in the Tang Dynasty.The demand for female to stay young and anti-aging had attracted lots of attention in the society, thus providing a favorable social environment for the formation and development of Chinese herbal cosmetology. The important representative medical works on traditional Chinese medicine (TCM) were published in the Sui and Tang Dynasties, such as Bei ji qian jin yao fang (Essential Recipes for Emergent Use Worth A Thousand Gold), Qian jin yi fang (Supplement to Recipes Worth A Thousand Gold), Wai tai mi yao (Arcane Essentials from the Imperial Library) etc...
November 28, 2016: Zhonghua Yi Shi za Zhi, Chinese Journal of Medical History
https://www.readbyqxmd.com/read/28103929/chemical-composition-and-some-biological-activities-of-the-essential-oils-from-basil-ocimum-different-cultivars
#13
Arpi Avetisyan, Anahit Markosian, Margarit Petrosyan, Naira Sahakyan, Anush Babayan, Samvel Aloyan, Armen Trchounian
BACKGROUND: The plants belonging to the Ocimum genus of the Lamiaceae family are considered to be a rich source of essential oils which have expressed biological activity and use in different area of human activity. There is a great variety of chemotypes within the same basil species. Essential oils from three different cultivars of basil, O. basilicum var. purpureum, O. basilicum var. thyrsiflora, and O. citriodorum Vis. were the subjects of our investigations. METHODS: The oils were obtained by steam distillation in a Clevenger-type apparatus...
January 19, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28103903/intraoperative-radiotherapy-iort-as-boost-in-breast-cancer
#14
REVIEW
Felix Sedlmayer, Roland Reitsamer, Frederik Wenz, Elena Sperk, Christoph Fussl, Julia Kaiser, Ingrid Ziegler, Franz Zehentmayr, Heinz Deutschmann, Peter Kopp, Gerd Fastner
The term IORT (intraoperative radiotherapy) is currently used for various techniques that show huge differences in dose delivery and coverage of the tissue at risk. The largest evidence for boost IORT preceding whole breast irradiation (WBI) originates from intraoperative electron treatments (IOERT) with single doses around 10 Gy. At median follow-up periods at 6 years, outstandingly low local recurrence rates of less than 1% are observed. Higher local relapse rates were described for G3 tumors and triple negative breast cancers as well as for IORT following primary systemic treatment for locally advanced tumors...
January 19, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28103760/the-use-of-a-direct-manufacturing-prosthetic-socket-system-in-a-rural-community-in-south-africa-a-pilot-study-and-lessons-for-future-research
#15
Liezel Ennion, Anton Johannesson, Anthea Rhoda
BACKGROUND: Challenges exist with the provision of appropriate mobility assistive devices in rural areas. The use of the direct manufacturing prosthetic socket system is a possible solution to these challenges. OBJECTIVES: The objective of this study was to test and explore the clients' perspectives with the application of this device. STUDY DESIGN: Within a mixed-methods approach, a longitudinal sequential explanatory design was applied. METHODS: The Orthotic and Prosthetic User's Survey was administered to explore the use of the direct manufacturing prosthetic socket system in terms of function, health-related quality of life and client satisfaction...
January 1, 2017: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/28103258/revisiting-greek-propolis-chromatographic-analysis-and-antioxidant-activity-study
#16
Konstantinos M Kasiotis, Pelagia Anastasiadou, Antonis Papadopoulos, Kyriaki Machera
Propolis is a bee product that has been extensively used in alternative medicine and recently has gained interest on a global scale as an essential ingredient of healthy foods and cosmetics. Propolis is also considered to improve human health and to prevent diseases such as inflammation, heart disease, diabetes and even cancer. However, the claimed effects are anticipated to be correlated to its chemical composition. Since propolis is a natural product, its composition is consequently expected to be variable depending on the local flora alignment...
2017: PloS One
https://www.readbyqxmd.com/read/28102816/clinicopathological-features-diagnosis-and-treatment-of-iga-nephropathy-with-minimal-change-disease-related-to-exposure-to-mercury-containing-cosmetics-a-case-report%C3%A2
#17
Hong-Xin Niu, Shen-Heng Li, Hong-Ying Li, Yi-Hua Chen, Wei-Wei Liu, Pei-Lin Li, Hai-Bo Long
AIM: Membranous nephropathy and minimal change disease (MCD) have been involved in mercury-induced nephrotic syndrome. IgA nephropathy is not known to be a common pathological type. In the present article, we report a case of IgA nephropathy with MCD following exposure to mercury-containing skin lightening cream. MATERIAL AND METHODS: The patient was a 39-year-old woman who presented with nephrotic syndrome. She had a 6-month history of using as many as 8 kinds of skin-lightening creams, and urinary mercury excretion was high...
January 19, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28101589/-intramedullary-nailing-in-diaphyseal-clavicle-fractures-using-minimally-invasive-percutaneous-reduction
#18
M Müller, T Freude, U Stöckle, T M Kraus
OBJECTIVE: Closed reduction and intramedullary nailing is common in diaphyseal clavicle fractures. The aim of this report is to demonstrate a surgical method with minimally invasive percutaneous reduction in cases where closed reduction fails. The procedure is associated with good cosmetic results. INDICATIONS: Percutaneous reduction using two reduction forceps enables intramedullary nailing without an open procedure. CONTRAINDICATIONS: Open, multifragmented or non-dislocated fractures, oblique fractures due to postoperative dislocation or shortening risk, fracture having potential to become compound fractures, neurovascular complications, pseudoarthroses...
January 18, 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28101465/nanostructured-lipid-carrier-for-topical-application-of-n-acetyl-glucosamine
#19
Lavin Aliasgharlou, Saeed Ghanbarzadeh, Hamideh Azimi, Mohammad Hossein Zarrintan, Hamed Hamishehkar
: Purpose: Hyperpigmentation occurs when melanin is overproduced in certain spots on the skin and is one of the most challenging skin conditions to treat. Although it is usually harmless, for cosmetic reasons, it is dreadfully bothersome to those who undergo it. It was reported that N-acetyl-glucosamine (NAGA) prevents melanin synthesis and alters the expression of numerous genes related to pigmentation. In spite of these advantages, NAGA cannot be employed in topical formulations due to its extremely polar characteristics...
December 2016: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28100887/production-of-a-health-beneficial-food-emulsifier-by-enzymatic-partial-hydrolysis-of-phospholipids-obtained-from-the-head-of-autumn-chum-salmon
#20
A K M Azad Shah, Toshihiro Nagao, Hideyuki Kurihara, Koretaro Takahashi
Phospholipids and their partial hydrolysates, namely lysophospholipids (LPLs), have been widely used in food, pharmaceutical, and cosmetic products as highly efficient emulsifiers. This study was conducted to produce docosahexaenoic acid (DHA)-esterified LPLs by enzymatic modification of phospholipids obtained from the head of autumn chum salmon (Oncorhynchus keta). The emulsifying properties of the obtained LPLs were also evaluated. Two different types of substrates of salmon head phospholipids were prepared via silica gel and cold acetone precipitation...
January 18, 2017: Journal of Oleo Science
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