keyword
MENU ▼
Read by QxMD icon Read
search

Wrinkle

keyword
https://www.readbyqxmd.com/read/27919803/germ-cell-proliferation-and-cluster-behavior-in-ovarioles-of-sialis-flavilatera-megaloptera-sialidae-during-larval-growth
#1
Ralph Rübsam, Jürgen Büning
Telotrophic meroistic insect ovaries are assigned to four different types. The Sialis type is found in Sialidae (Megaloptera), Raphidioptera and a coleopteran subgroup (Myxophaga: Hydroscaphidae). King and Büning (1985) proposed a hypothetical model for the development of this ovariole type, a detailed description of ovarian development in Sialis was missing so far. Using light and electron microscopy, we investigated developing ovaries of Sialis flavilatera starting in the 10(th) month of the biennial larval phase until adulthood...
December 2, 2016: Arthropod Structure & Development
https://www.readbyqxmd.com/read/27918844/novel-method-for-facial-rejuvenation-using-er-yag-laser-equipped-with-a-spatially-modulated-ablation-module-an-open-prospective-uncontrolled-cohort-study
#2
N V Volkova, L K Glazkova, V V Khomchenko, N S Sadick
Facial aging is a complex biological process that affects the skin and superficial musculoaponeurotic system (SMAS). A new technology (RecoSMA) for skin rejuvenation based on acoustic-interference method using Er:YAG laser (2936 nm) equipped with a special module SMA that targets both the dermis and SMAS was evaluated in an open-label prospective cohort study of 100 female patients treated for facial rejuvenation. Measure of clinical improvement included investigator-rated clinical photography using the Modified Fitzpatrick Wrinkle Scale, and ultrasound measurements in the dermis a week, 30 days and six months post treatment...
December 5, 2016: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/27913950/mechanics-reveals-the-biological-trigger-in-wrinkly-fingers
#3
P Sáez, A M Zöllner
Fingertips wrinkle due to long exposure to water. The biological reason for this morphological change is unclear and still not fully understood. There are two main hypotheses for the underlying mechanism of fingertip wrinkling: the 'shrink' model (in which the wrinkling is driven by the contraction of the lower layers of skin, associated with the shrinking of the underlying vasculature), and the 'swell' model (in which the wrinkling is driven by the swelling of the upper layers of the skin, associated with osmosis)...
December 2, 2016: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/27913355/hierarchically-micro-and-nanopatterned-topographical-cues-for-modulation-of-cellular-structure-and-function
#4
Hoon Seonwoo, Won-Gyu Bae, Sunho Park, Hong-Nam Kim, Kyoung Soon Choi, Ki Taek Lim, Hoon Hyun, Jin-Woo Kim, Jangho Kim, Jong Hoon Chung
Living cells receive biochemical and physical information from the surrounding microenvironment and respond to this information. Multiscale hierarchical substrates with micro- and nanogrooves have been shown to mimic the native extracellular matrix (ECM) better than conventional nanopatterned substrates; therefore, substrates with hierarchical topographical cues are considered suitable for investigating the role of physical factors in tissue functions. In this study, precisely controllable, multiscale hierarchical substrates that could mimic the micro- and nanotopography of complex ECMs were fabricated and used to culture various cell types, including fibroblasts, endothelial cells, osteoblasts, and human mesenchymal stem cells...
December 1, 2016: IEEE Transactions on Nanobioscience
https://www.readbyqxmd.com/read/27913241/evaluation-of-highly-branched-cyclic-dextrin-in-inhalable-particles-of-combined-antibiotics-for-the-pulmonary-delivery-of-anti-tuberculosis-drugs
#5
Kazunori Kadota, Arisa Senda, Hideaki Tagishi, John Oluwasogo Ayorinde, Yuichi Tozuka
This work aims to identify a suitable formulation for the pulmonary delivery of combinations of inhalational drugs using highly branched cyclic dextrin (HBCD) macromolecules. We compared the effectiveness between powders prepared from HBCD with those prepared from five alternative excipients (lactose, maltose, sucrose, β-cyclodextrin and methyl β-cyclodextrin) in the pulmonary delivery of a single-dosage form of two anti-tuberculosis drugs (isoniazid and rifampicin). Fine particles of untreated active pharmaceutical ingredients (APIs) and combination products using excipients were prepared by spray drying...
November 29, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27910259/safety-efficacy-and-usage-compliance-of-home-use-device-utilizing-rf-and-light-energies-for-treating-periorbital-wrinkles
#6
Michael H Gold, Julie Biron, Liora Levi, Whitney Sensing
BACKGROUND: The aging process is often associated with undesirable effects on facial skin such as skin redundancy, reduction of elasticity, and increased wrinkling. Radiofrequency (RF) and light-emitting diodes (LEDs) are widely used, clinically proven technologies for skin rejuvenation. STUDY OBJECTIVE: This study aimed to evaluate the safety, efficacy, and usage compliance of the home-use device, utilizing RF and LED energies, for self-treatment of periorbital wrinkles and improvement of skin appearance...
December 2, 2016: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/27906442/the-role-of-fillers-in-aesthetic-medicine-medico-legal-aspects
#7
E Marinelli, G Montanari Vergallo, G Reale, A di Luca, I Catarinozzi, S Napoletano, S Zaami
In recent years there has been an exponential increase of fillers use in aesthetic medicine. The popularity of this anti-wrinkle product is based on their capacity to offer significant improvement in the aesthetic field, particularly to skin rejuvenating processes with non-invasive and less expensive techniques, if compared to the surgical methods (i.e. surgical lifting). The great number of fillers on the market is composed of a large heterogenic number of biomaterials. The aim of this review was to provide an overview and a classification of the filling materials that are most commonly used...
November 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/27904582/the-role-of-peroxisome-proliferator-activated-receptor-coactivator-1-gene-in-skin-aging
#8
REVIEW
Shahrzad Aghaei, Mohammad Ali Nilforoushzadeh, Maryam Aghaei
Skin aging is a continuous process that exhibits fine and deep wrinkles, thin and transparent skin, loss of underlying fat, dry skin and itch, following decreased collagen and elastin synthesis. Both extrinsic and intrinsic agents are considered in the pathogenesis on skin aging. Extrinsic factors such as sun exposure, windy and dry weather, nutrition, and lifestyle may induce premature aging, toxic-free radicals, and reactive oxygen species due to decreasing normal function of mitochondria which play the major intrinsic factors in premature skin aging...
2016: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/27899318/new-wrinkling-substrate-assay-reveals-traction-force-fields-of-leader-and-follower-cells-undergoing-collective-migration
#9
Sho Yokoyama, Tsubasa S Matsui, Shinji Deguchi
Physical forces play crucial roles in coordinating collective migration of epithelial cells, but details of such force-related phenomena remain unclear partly due to the lack of robust methodologies to probe the underlying force fields. Here we develop a method for fabricating silicone substrates that detect cellular traction forces with a high sensitivity. Specifically, a silicone elastomer is exposed to oxygen plasma under heating. Removal of the heat shrinks the substrate so as to reduce its critical buckling strain in a spatially uniform manner...
November 27, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27897210/fabrication-of-ws2-gan-p-n-junction-by-wafer-scale-ws2-thin-film-transfer
#10
Yang Yu, Patrick W K Fong, Shifeng Wang, Charles Surya
High quality wafer-scale free-standing WS2 grown by van der Waals rheotaxy (vdWR) using Ni as a texture promoting layer is reported. The microstructure of vdWR grown WS2 was significantly modified from mixture of crystallites with their c-axes both parallel to (type I) and perpendicular to (type II) the substrate to large type II crystallites. Wafer-scale transfer of vdWR grown WS2 onto different substrates by an etching-free technique was demonstrated for the first time that utilized the hydrophobic property of WS2 and hydrophilic property of sapphire...
November 29, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27895625/evaluation-of-virulence-factors-in-vitro-resistance-to-osmotic-stress-and-antifungal-susceptibility-of-candida-tropicalis-isolated-from-the-coastal-environment-of-northeast-brazil
#11
Diana L Zuza-Alves, Sayama S T Q de Medeiros, Luanda B F C de Souza, Walicyranison P Silva-Rocha, Elaine C Francisco, Maria C B de Araújo, Reginaldo G Lima-Neto, Rejane P Neves, Analy S de Azevedo Melo, Guilherme M Chaves
Several studies have been developed regarding human health risks associated with the recreational use of beaches contaminated with domestic sewage. These wastes contain various micro-organisms, including Candida tropicalis. In this context, the objective of this study was to characterize C. tropicalis isolates from the sandy beach of Ponta Negra, Natal, Rio Grande do Norte, Brazil, regarding the expression of in vitro virulence factors, adaptation to osmotic stress and susceptibility to antifungal drugs. We analyzed 62 environmental isolates and observed a great variation among them for the various virulence factors evaluated...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27891474/an-evaluation-of-use-of-botulinum-toxin-type-a-in-the-management-of-dynamic-forehead-wrinkles-a-clinical-study
#12
Avvaru Susmita, Naga Neelima Devi Kolli, Sridhar Meka, Srinivas Pandi Chakravarthi, Vivekanand Sabanna Kattimani, Krishna Prasad Lingamaneni, Latheef Saheb Shaik
INTRODUCTION: The pursuit of youth and beauty has undergone a resurgence of interest which is evidenced by increasing cosmetic procedures. Botulinum Toxin Type A (Botox) is one among the many procedures invented for facial rejuvenation which denervates certain muscles of facial expression responsible for facial wrinkles. It has been applied in the forehead, glabella, lateral canthal area and neck. In maxillofacial area hyperactive forehead wrinkles show sagging. AIM: This study was aimed to clinically evaluate the efficacy of Botox injection in the elimination of hyperdynamic forehead wrinkles and the objectives were to compare pre-operative and post-operative improvement in the number of wrinkles, photographic grading and patient satisfaction responses after 1(st) week, 4(th) week and 16(th) week...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27885522/efficacy-and-safety-of-fractional-co2-laser-versus-fractional-er-yag-laser-in-the-treatment-of-facial-skin-wrinkles
#13
Reza M Robati, Elmira Asadi
Ablative fractional lasers were introduced for treating facial rhytides. Few studies have compared fractional CO2 and Er:YAG lasers on cutaneous photodamages by a split trial. The aim of the present study was to compare these modalities in a randomized controlled double-blind split-face design with multiple sessions and larger sample size compared to previous studies done before. Forty patients with facial wrinkles were enrolled. Patients were randomly assigned to receive three monthly treatments on each side of the face, one with a fractional CO2 and one with a fractional Er:YAG laser...
November 24, 2016: Lasers in Medical Science
https://www.readbyqxmd.com/read/27882973/the-evolving-quality-of-frictional-contact-with-graphene
#14
Suzhi Li, Qunyang Li, Robert W Carpick, Peter Gumbsch, Xin Z Liu, Xiangdong Ding, Jun Sun, Ju Li
Graphite and other lamellar materials are used as dry lubricants for macroscale metallic sliding components and high-pressure contacts. It has been shown experimentally that monolayer graphene exhibits higher friction than multilayer graphene and graphite, and that this friction increases with continued sliding, but the mechanism behind this remains subject to debate. It has long been conjectured that the true contact area between two rough bodies controls interfacial friction. The true contact area, defined for example by the number of atoms within the range of interatomic forces, is difficult to visualize directly but characterizes the quantity of contact...
November 23, 2016: Nature
https://www.readbyqxmd.com/read/27880964/protective-effects-of-standardized-siegesbeckia-glabrescens-extract-and-its-active-compound-kirenol-against-uvb-induced-photoaging-through-inhibition-of-mapk-nf-%C3%AE%C2%BAb-pathways
#15
Jongwook Kim, Mi-Bo Kim, Jun Gon Yun, Jae Kwan Hwang
Anti-photoaging effects of standardized Siegesbeckia glabrescens extract (SGE) and its major active compound kirenol were investigated using Hs68 human dermal fibroblasts and hairless mice, respectively. UVB-irradiated hairless mice that received oral SGE (600 mg/kg/day) showed reduced wrinkle formation and skinfold thickness compared to the UVB-irradiated control. Furthermore, SGE treatment increased the mRNA levels of collagen synthesis genes (COL1A1, COL3A1, COL4A1, and COL7A1) and activated antioxidant enzyme (catalase), while suppressing the matrix metalloproteinases (MMPs; MMP-2, -3, -9, and -13) expression...
November 23, 2016: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27874030/ultrasonic-spray-coating-polymer-and-small-molecular-organic-film-for-organic-light-emitting-devices
#16
Shihao Liu, Xiang Zhang, Letian Zhang, Wenfa Xie
Ultrasonic spray coating process (USCP) with high material -utilization, low manufacture costs and compatibility to streamline production has been attractive in researches on photoelectric devices. However, surface tension exists in the solvent is still a huge obstacle to realize smooth organic film for organic light emitting devices (OLEDs) by USCP. Here, high quality polymer anode buffer layer and small molecular emitting layer are successfully realized through USCP by introducing extra-low surface tension diluent and surface tension control method...
November 22, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27867018/chitin-synthase-1-gene-is-crucial-to-antifungal-host-defense-of-the-model-beetle-tribolium-castaneum
#17
Yuuki Hayakawa, Daiki Kato, Katsumi Kamiya, Chieka Minakuchi, Ken Miura
The importance of the insect cuticle as a primary protective barrier against entomopathogens has long been noted. In the present study, we addressed this issue by utilizing an experimental infection system composed of the model beetle T. castaneum and two entomopathogenic fungal species, Beauveria bassiana and Metarhizium anisopliae. The pupae were relatively susceptible to these fungi by the natural route of infection, with some refractoriness developed with age, while the adults exhibited much higher refractoriness...
November 17, 2016: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/27855126/mechanical-and-electronic-coupling-in-few-layer-graphene-and-hbn-wrinkles-a-first-principles-study
#18
Yufeng Guo, Jiapeng Qiu, Wanlin Guo
Wrinkle engineering is an important pathway to develop novel functional devices of two-dimensional materials. By combining first-principles calculations and continuum mechanics modelling, we have investigated the wrinkling of few-layer graphene and hexagonal boron nitride (hBN) and provide a way to estimate their bending stiffness. For few-layer wrinkles under the same strain, the magnitude of structural deformation of each constituent layer gradually decreases from bottom to top layers, while interlayer interaction increases with increasing layer number...
December 16, 2016: Nanotechnology
https://www.readbyqxmd.com/read/27853678/rejuvenation-of-facial-skin-and-improvement-in-the-dermal-architecture-by-transplantation-of-autologous-stromal-vascular-fraction-a-clinical-study
#19
Mohammad Amir Amirkhani, Alireza Shoae-Hassani, Masoud Soleimani, Somayeh Hejazi, Leila Ghalichi, Mohammad Ali Nilforoushzadeh
Introduction: The rejuvenation characteristics of fat tissue grafting has been established for many years. Recently it has been shown that stromal vascular fraction (SVF) of fat tissue contributes to its rejuvenation properties. As the SVF is a minimal processed cell population (based on FDA guidance), therefore it is a suitable cell therapy for skin rejuvenation. This clinical trial was aimed to evaluate the ultrastructural improvement of aging skin in the facial nasolabial region after transplantation of autologous SVF...
2016: BioImpacts: BI
https://www.readbyqxmd.com/read/27843928/frontal-alopecia-after-repeated-botulinum-toxin-type-a-injections-for-forehead-wrinkles-an-underestimated-entity
#20
Antonino Di Pietro, Bianca Maria Piraccini
BACKGROUND: Injections of botulinum toxin type A in the forehead have never been reported to cause hair side effects. OBJECTIVE: The aim of this paper is to report a new type of alopecia, which we have seen in women undergoing periodic injections of botulinum toxin type A for forehead wrinkles, and to differentiate it from other types of hair loss. METHODS: We conducted an observational study on 5 females recruited from a private and an institutional practice who complained of progressive recession of the hairline after periodic injections of botulinum toxin type A in the forehead...
September 2016: Skin Appendage Disorders
keyword
keyword
31230
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"