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Wrinkle

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https://www.readbyqxmd.com/read/28644625/chemically-modified-surface-having-a-dual-structured-hierarchical-topography-for-controlled-cell-growth
#1
Lun Peng, Shenglin Zhou, Bo Yang, Meimei Bao, Gaojian Chen, Xiaohua Zhang
This report describes a technique for fabricating dual-structured hierarchical surface topography on the surface of polydimethylsiloxane (PDMS) films through simply replicating prefabricated patterns and wrinkling PDMS films. To enhance the biocompatibility of PDMS films we synthesize a biocompatible dopamine-glycopolymer, which is utilized to modify the chemical feature of the PDMS surface. Dopamine component in this copolymer is introduced for the formation of a carbohydrate layer on the surface of PDMS films due to its excellent adhesion...
June 23, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28643824/-perioral-treatment-options-in-cosmetic-facial-surgery
#2
F Bierenbroodspot, H J Schouten, R H Schepers, J Jansma
The perioral region is unique and important in the face, both from a functional and an aesthetic point of view. There is a strong relationship between the perioral soft tissues, such as the lips and the corners of the mouth, and the underlying dentition and the jaws. Perioral ageing phenomena, such as depressed corners of the mouth, volume loss and wrinkles, can be improved, however, to a limited extent with intraoral treatment. These ageing phenomena can usually be treated more effectively with several extraoral treatment modalities that also enhance perioral aesthetics...
June 2017: Nederlands Tijdschrift Voor Tandheelkunde
https://www.readbyqxmd.com/read/28643699/nonequilibrium-ferroelectric-ferroelastic-10%C3%A2-nm-nanodomains-wrinkles-period-doubling-and-power-law-relaxation
#3
James F Scott, Donald M Evans, Ram S Katiyar, Raymond G P McQuaid, J Marty Gregg
Since the 1935 work of Landau-Lifshitz and of Kittel in 1946 all ferromagnetic, ferroelectric, and ferroelastic domains have been thought to be straight-sided with domain widths proportional to the square root of the sample thickness. We show in the present work that this is not true. We also discover period doubling domains predicted by Metaxas et al (2008 Phys. Rev. Lett. 99 217208) and modeled by Wang and Zhao (2015 Sci. Rep. 5 8887). We examine non-equilibrium ferroic domain structures in perovskite oxides with respect to folding, wrinkling, and relaxation and suggest that structures are kinetically limited and in the viscous flow regime predicted by Metaxas et al in 2008 but never observed experimentally...
June 23, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28643360/a-new-wrinkle-in-oligoarylene-architecture
#4
Graham J Bodwell
Bowl me over! A breathtaking bowl-shaped oligoarylene has been created. The structure is analogous to that of corranulene, but instead of twenty sp(2) -hybridized carbon atoms, the new nanometer-sized molecule has been constructed using twenty 1,3,5-trisubstituted benzene rings.
June 23, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28643008/correction-of-rhytides-peau-d-orange-and-thin-dermis-of-the-face-by-neocollagenesis-using-novel-collagen-stimulating-slurry-protocol
#5
Steven Dominguez, Marek Dobke
We reviewed 200 patient records from 2009 to 2015 of individuals who presented at the authors offices for facial wrinkle reduction and who on physical examination had rhytides, peau d'orange, or thin dermis and underwent novel adipose slurry injections. The patients were evaluated at week 2, 1, 3 and 6 months revealing an 80, 60 and 40% improvement in rhytides and dermis density, respectively. We present the protocol and description of a reasonable alternative or adjunct to manufactured fillers that is comprised of autologous adipose, stem cells, and growth factor slurry...
June 22, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28642916/the-antioxidant-effect-of-beackea-frutescence-microemulsions-dietary-supplements-on-skin-absorption-studies
#6
Mohd Zul Helmi Rozaini, Armiza Ahmad, Azizul Idris, Chen Fei Low, Mohd Effendy Abdul Wahid
Objective: To study the effect of two different microemulsions containing Beackea frutescence supplements composed of nerolidool, selenium and vitamin E on absorption effect related to skin health and skin aging. Materials and methods: A total of 39 volunteers with normal and healthy skin were divided into three groups (n = 13) and supplemented for a period of 12 weeks. Group 1 received a mixture of lutein (3 mg/day), lycopene (3 mg/day), α-tocopherol (10 mg/day), selenium (75 μg/day) and β-nerolidool (4...
December 2016: Acta Biomaterialia Odontologica Scandinavica
https://www.readbyqxmd.com/read/28639749/evaluation-of-the-in%C3%A2-vivo-cosmetic-efficacy-of-the-mfiii-blue-cell-serum-gel-one-and-two-month-test-results
#7
Dina Tukhvatullina, Alain Béguin, Henry Pong, Maria Del Mar Cabarbas, Dmitry Klokol, Mike Ks Chan, Michelle B F Wong
INTRODUCTION: Skin is changing over time showing signs of aging: dryness, increase in visual and tactile roughness, decrease in collagen content and stiffness, and eventually formation of deep and surface wrinkles, and fine lines. METHODS: Eight-week open experimental study was conducted to test efficacy of MFIII Blue Cell Serum Gel. Main criteria to determine product efficacy by following skin biophysical techniques were as follows: skin moisturization, firmness, epidermal and dermal density, skin surface properties and sebum level, reduction in fine lines and wrinkles...
June 22, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28634008/aging-associated-modifications-of-collagen-affect-its-degradation-by-matrix-metalloproteinases
#8
Preety Panwar, Georgina S Butler, Andrew Jamroz, Pouya Azizi, Christopher M Overall, Dieter Brömme
The natural aging process and various pathologies correlate with alterations in the composition and the structural and mechanical integrity of the connective tissue. Collagens represent the most abundant matrix proteins and provide for the overall stiffness and resilience of tissues. The structural changes of collagens and their susceptibility to degradation are associated with skin wrinkling, bone and cartilage deterioration, as well as cardiovascular and respiratory malfunctions. Here, matrix metalloproteinases (MMPs) are major contributors to tissue remodeling and collagen degradation...
June 17, 2017: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/28629129/dietary-management-of-skin-health-the-role-of-genistein
#9
REVIEW
Natasha Irrera, Gabriele Pizzino, Rosario D'Anna, Mario Vaccaro, Vincenzo Arcoraci, Francesco Squadrito, Domenica Altavilla, Alessandra Bitto
In women, aging and declining estrogen levels are associated with several cutaneous changes, many of which can be reversed or improved by estrogen supplementation. Two estrogen receptors-α and β-have been cloned and found in various tissue types. Epidermal thinning, declining dermal collagen content, diminished skin moisture, decreased laxity, and impaired wound healing have been reported in postmenopausal women. Experimental and clinical studies in postmenopausal conditions indicate that estrogen deprivation is associated with dryness, atrophy, fine wrinkling, and poor wound healing...
June 17, 2017: Nutrients
https://www.readbyqxmd.com/read/28628686/off-face-usage-of-poly-l-lactic-acid-for-body-rejuvenation
#10
Ahmad Jabbar, Suleima Arruda, Neil Sadick
<p>Injectable soft-tissue augmentation agents have become popular alternatives to surgical procedures for the aging face and body. In contrast to temporary, space-occupying replacement fillers such as collagen-based and hyaluronic acid products, poly-l-lactic acid (PLLA) has been demonstrated to gradually promotes deposition of collagen via a biostimulatory response, with therapeutic effects lasting approximately two years. In 2004, the FDA approved its use for rejuvenation of facial contours secondary to lipoatrophy associated with antiretroviral therapy for HIV infection...
May 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28625328/platelet-rich-plasma-for-the-treatment-of-photodamage-of-the-skin-of-the-hands
#11
J O Cabrera-Ramírez, A G Puebla-Mora, A González-Ojeda, D García-Martínez, J A Cortés-Lares, A R Márquez-Valdés, G I Contreras-Hernández, J Bracamontes-Blanco, J A Saucedo Ortiz, C Fuentes-Orozco
BACKGROUND: Platelet-rich plasma (PRP) provides growth factors that stimulate fibroblast activation and induce the synthesis of collagen and other components of the extracellular matrix. The objective of this study was to evaluate the effect of PRP in the treatment of photodamage of the skin of the hands. MATERIAL AND METHODS: This was an experimental study. Eighteen patients with aging of the skin of the dorsum of the hands (type III of the Glogau photoaging scale or class II of the Fitzpatrick wrinkle and elastosis scale) were included...
June 15, 2017: Actas Dermo-sifiliográficas
https://www.readbyqxmd.com/read/28617579/programming-feature-size-in-thermal-wrinkling-of-metal-polymer-bilayer-by-modulating-substrate-visco-elasticity
#12
Anuja Das, Aditya Banerji, Rabibrata Mukherjee
We report a novel strategy to create stress induced self-organized wrinkles in a metal polymer bilayer with programmable periodicity (λS) varying over a wide range, from ≈ 20 m down to ≈ 800 nm by modulating the viscoelasticity of the bottom polymer layer. Substrates with different visco-elasticity are prepared by pre-curing thin films of a thermo-curable poly-dimethylsiloxane (PDMS) elastomer (Sylgard 184) for different durations (tP) prior to deposition of the top aluminum layer by thermal evaporation...
June 15, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28612301/erratum-to-the-clinical-experience-and-efficacy-of-radiofrequency-device-for-wrinkle-treatment
#13
Yeon A No, Beom Joon Kim, Myeung Nam Kim, Chang Kwun Hong
No abstract text is available yet for this article.
June 14, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28609855/two-new-species-of-tardigrada-eutardigrada-ramazzottiidae-macrobiotidae-from-the-supralittoral-zone-of-the-atlantic-iberian-peninsula-rocky-shores
#14
Paulo Fontoura, Marcos Rubal, Puri Veiga
Two new species of Eutardigrada were found in supralittoral lichens, growing on rocky shores at two localities of the Western Atlantic coast of the Iberian Peninsula. Ramazzottius littoreus sp. nov., found in San Cibrao (North of Spain), has the dorsal cuticle sculptured with small tubercles and claws with accessory points similar to R. oberhaeuseri. It can be distinguished from all the other known Ramazzottius species with the same type of cuticular sculpture by the dotted egg shell and the peculiar reticulation visible at the bulbous base of egg processes...
May 10, 2017: Zootaxa
https://www.readbyqxmd.com/read/28609168/forever-young-visual-representations-of-gender-and-age-in-online-dating-sites-for-older-adults
#15
Ateret Gewirtz-Meydan, Liat Ayalon
Online dating has become increasingly popular among older adults following broader social media adoption patterns. The current study examined the visual representations of people on 39 dating sites intended for the older population, with a particular focus on the visualization of the intersection between age and gender. All 39 dating sites for older adults were located through the Google search engine. Visual thematic analysis was performed with reference to general, non-age-related signs (e.g., facial expression, skin color), signs of aging (e...
June 13, 2017: Journal of Women & Aging
https://www.readbyqxmd.com/read/28607855/seri-surgical-scaffold-in-2-stage-breast-reconstruction-2-year-data-from-a-prospective-multicenter-trial
#16
Nolan Karp, Mihye Choi, David A Kulber, Susan Downey, Gloria Duda, Gabriel M Kind, Mark L Jewell, Diane K Murphy, Max R Lehfeldt, Neil Fine
BACKGROUND: Soft-tissue support devices are used during breast reconstruction. This study investigated long-term clinical data following SERI Surgical Scaffold (SERI) implantation, a bioresorbable, silk-derived scaffold for soft-tissue support. METHODS: This was a prospective, multicenter study in 103 subjects who received SERI during stage 1 of 2-stage breast reconstruction with subpectoral tissue expander placement (Natrelle Style 133V; Allergan plc, Dublin, Ireland) followed by subpectoral breast implant placement...
May 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28606525/inhaled-hyaluronic-acid-microparticles-extended-pulmonary-retention-and-suppressed-systemic-exposure-of-a-short-acting-bronchodilator
#17
Ying Li, Meihua Han, Tingting Liu, Dongmei Cun, Liang Fang, Mingshi Yang
The aim of this study was to investigate the feasibility of using hyaluronic acid (HA), a biomucoadhesive carbohydrate polymer to prolong the pulmonary retention and reduce the systemic exposure of inhaled medicine. Salbutamol sulphate (SAS), a model bronchodilator, was co-spray dried with HA into inhalable microparticles, which were subsequently characterized as spherical shape with wrinkled surface. The fine particle fraction of the microparticles tested by using the Next Generation Impactor was over 30% without the aid of any carrier, and the in vitro release of SAS lasted for 20h...
September 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28605051/ultrastructural-aspects-of-primary-anetoderma
#18
Joice Brião Göebel Pinto, Hiram Larangeira de Almeida, Luis Antônio Suíta de Castro, Nara Moreira Rocha
Anetoderma (anetos, Greek for slack) [1], also known as macular atrophy, is a rare elastolytic disorder characterized by circumscribed areas of flaccid skin due to focal loss of dermal elastic tissue, resulting in normochromic or erythematous papules and plaques with a wrinkled and atrophic surface.
June 12, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28604878/assessment-and-control-of-the-impermeability-of-graphene-for-atomically-thin-membranes-and-barriers
#19
Piran R Kidambi, Rebekah A Terry, Luda Wang, Michael S H Boutilier, Doojoon Jang, Jing Kong, Rohit Karnik
Two-dimensional materials such as graphene offer fundamentally transformative opportunities in membrane separations and as impermeable barriers, but the lack of facile methods to assess and control its 'impermeability' critically limits progress. Here we show that a simple etch of the growth catalyst (Cu) through defects in monolayer graphene synthesized by chemical vapor deposition (CVD) can be used to effectively assess graphene quality for membrane/barrier applications. Using feedback from the method to tune synthesis, we realize graphene with nearly no nanometer-scale defects as assessed by diffusion measurements, in contrast to commercially available graphene that is largely optimized for electronic applications...
June 12, 2017: Nanoscale
https://www.readbyqxmd.com/read/28595250/prospective-split-face-randomized-long-term-blinded-objective-comparison-of-the-performance-and-tolerability-of-two-new-hyaluronic-acid-fillers
#20
Patrick Trevidic, Pierre Andre, Laurent Benadiba, Jean-Jacques Deutsch, Olivier Galatoire, Philippe Garcia, Anne Grand-Vincent, Sylvie Boisnic, Jean-Charles Kerihuel, Catherine Salomon
BACKGROUND: There are requirements for long-term, objective comparisons of hyaluronic acid (HA) dermal fillers. OBJECTIVE: To compare efficacy and tolerability of ART FILLER Universal (AFU) and ART FILLER Fine lines (AFFL) with the existing HA fillers for the treatment of nasolabial folds and crow's feet. MATERIALS AND METHODS: Prospective, randomized, rater- and patient-blind, split-face comparison of AFU with JUVEDERM Ultra 3 (JUV) and AFFL with FIRST LINES PureSense (FLPS)...
June 6, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
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