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Photo aging

Harlene Hayne, Katja Jaeger, Trine Sonne, Julien Gross
The visual recognition memory (VRM) paradigm has been widely used to measure memory during infancy and early childhood; it has also been used to study memory in human and nonhuman adults. Typically, participants are familiarized with stimuli that have no special significance to them. Under these conditions, greater attention to the novel stimulus during the test (i.e., novelty preference) is used as the primary index of memory. Here, we took a novel approach to the VRM paradigm and tested 1-, 2-, and 3-year olds using photos of meaningful stimuli that were drawn from the participants' own environment (e...
November 2016: Developmental Psychobiology
X Yang, D LE, Y L Zhang, L Z Liang, G Yang, W J Hu
OBJECTIVE: To explore a crown form classification method for upper central incisor which is more objective and scientific than traditional classification method based on the standardized photography technique. To analyze the relationship between crown form of upper central incisors and papilla filling in periodontally healthy Chinese Han-nationality youth. METHODS: In the study, 180 periodontally healthy Chinese youth ( 75 males, and 105 females ) aged 20-30 (24...
October 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
Zhenbin Wang, Qing Wang, Lin Wang, Weidong Xu, Yuanqing He, Yunliang Li, Song He, Haile Ma
BACKGROUND: Collagen hydrolysates (CHs) has been demonstrated to have positive effect on skin photo-aging by topical application or oral ingestion. However, there's little report about its influence on skin chronological aging so far. RESULTS: Nine-month-old female ICR mice were given normal AIN-93M diets containing the CHs (2.5%, 5% and 10%, respectively) from Nile tilapia scale. After 6 months, the collagen content and antioxidant enzymes (superoxide dismutase and glutathione peroxidase) activities significantly increased (p < 0...
October 17, 2016: Journal of the Science of Food and Agriculture
Nancy Roxana Machaca Quea, Fabian Emura, Fernando Barreda Bolaños, Yuliana Salvador Arias, Fernando Antonio Arévalo Suárez, Alejandro Piscoya Rivera
Background and study aims: In the Western world, gastric cancer (GC) usually presents at an advanced stage, carrying a high mortality rate. Studies have reported that 14 % to 26 % of GCs are missed at endoscopy up to 3 years before diagnosis. Systematic Alphanumeric Coded Endoscopy (SACE) has been proposed to improve quality of esophagogastroduodenoscopy (EGD) by facilitating a complete examination of the upper gastrointestinal tract. This prospective cross-sectional study was designed to determine the frequency of gastric intraepithelial neoplasia (GIN) by using the SACE approach in cohort of patients from low socioeconomic level...
October 2016: Endoscopy International Open
G Meenakshi, A Sivasamy
Semiconductor zinc oxide nanorods (NRZnO) were prepared by sol-gel technique using zinc acetate as the precursor and ammonia as the precipitating agent. The prepared photocatalyst were characterized by X-ray diffraction (XRD), Fourier Transform Infrared (FTIR), UV-Visible diffuse reflectance spectroscopy (UV-Vis-DRS), X-ray photoelectron spectroscopy (XPS), Field Emission-Scanning Electron Microscopy (FE-SEM), Atomic Force Microscopy (AFM), High Resolution-Tunneling Microscope (HR-TEM), Brunauer, Emmett and Teller (BET) and electron paramagnetic resonance spectroscopy (EPR) analysis...
October 13, 2016: Ecotoxicology and Environmental Safety
Bryson E Finch, Emily S Stefansson, Chris J Langdon, Suzanne M Pargee, Susanna M Blunt, Susan J Gage, William A Stubblefield
Polycyclic aromatic hydrocarbons (PAHs) have been reported to absorb ultraviolet (UV) light, resulting in enhanced toxicity. Early developmental stages of bivalves may be particularly susceptible to photo-enhanced toxicity during oil spills. In the current study, toxicity tests were conducted with sperm and three larval ages of the eastern oyster (Crassostrea virginica) to evaluate the photo-enhanced toxicity of low-energy water-accommodated fractions (WAFs) of two weathered Macondo crude oils collected from the Deepwater Horizon incident...
October 7, 2016: Marine Pollution Bulletin
Roksana Malak, Agnieszka Krawczyk-Wasielewska, Ewa Mojs, Bartosz Grobelny, Katarzyna B Głodowska, José Carlos Millán-Calenti, Laura Núñez-Naveira, Włodzimierz Samborski
BACKGROUND The person with dementia should be treated as an unique person regarding symptoms directly associated with dementia, such as problems with memory, hallucinations, and delusions, as well as other physical, mental, or neurological deficits. The symptoms not directly typical of dementia, such as musculoskeletal disorders or depression, should be also be considered in order to improve the quality of life of a person with dementia. That is why professional caregivers have to broaden their current knowledge not only of medical symptoms but also of the patient's psychosocial condition and increase their inquisitiveness about the individual condition of the patient...
October 10, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
K Y Tian, Q Q Li, X J Liu, X X Wang, Z L Li, X Wang
Objective: To establish a computer-aided surgical simulation procedure based on the natural head position(NHP) for orthognathic surgery and to access the effect for correcting facial asymmetry for skeletal Class Ⅲ deformity. Methods: Thirty-five patients(male: 14 and female: 21, mean age: [21.5±2.3] years) of skeletal Class Ⅲ deformity with facial asymmetry were included and divided into virtual group (16 patients) and control group(19 patients). The computer-aided surgical simulation procedure was used in the virtual group and the intermediate and final splints were fabricated using the rapid protyping technique...
October 9, 2016: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
Daniela Pinna, Monica Galeotti, Adriana Rizzo, Emma Cantisani, Giorgia Sciutto, Martina Zangheri, Silvia Prati, Rocco Mazzeo, Aldo Roda
The research complements the complex study carried out to understand the source of brown discolourations of ten marble statues in the Church of Orsanmichele in Florence, Italy. Originally located in exterior niches, the statues were restored to reverse the extensive alterations they had undergone throughout the centuries. One of the major alterations was the application of a dark brown patina that dated just after 1789. After the statues were placed indoors, brownish discolourations started to appear on their surfaces...
October 8, 2016: Environmental Science and Pollution Research International
Chien-Lin Pan, Ming-Hong Chen, Fu-I Tung, Tse-Ying Liu
: Many non-antibiotic strategies, such as photocatalysis and photodynamic therapy, have been proposed to inhibit and/or kill bacteria. However, these approaches still have drawbacks such as insufficient bacterial specificity and the limited penetration depth of ultraviolet and near-infrared light. To overcome these limitations, we developed a bacteria-specific anti-bacterial technique via using low-dose X-ray. Graphene oxide quantum dots (GQDs, a multifunctional vehicle) conjugated with vancomycin (Van, a bacteria-targeting ligand) were assembled with Protoporphyrin IX (PpIX, a photo/radiation sensitizer) to yield a novel Van-GQDs/PpIX complex that specifically attached to Escherichia coli and efficiently generated intracellular reactive oxygen species following X-ray activation...
October 3, 2016: Acta Biomaterialia
A Bianco Prevot, F Baino, D Fabbri, F Franzoso, G Magnacca, R Nisticò, A Arques
Caffeine-photosensitized degradation has been studied in the presence of bio-based materials derived from urban biowaste after aerobic aging. A peculiar fraction (namely bio-based substances (BBSs)), soluble in all the pH range, has been used as photosensitizing agent. Several caffeine photodegradation tests have been performed, and positive results have been obtained in the presence of BBSs and H2O2, without and with additional Fe(II) (photo-Fenton-like process). Moreover, hybrid magnetite-BBS nanoparticles have been synthesized and characterized, in order to improve the sensitizer recovery and reuse after the caffeine degradation...
September 30, 2016: Environmental Science and Pollution Research International
Jonas Gugger, Nikolaos Pandis, Spiros Zinelis, Raphael Patcas, George Eliades, Theodore Eliades
INTRODUCTION: Our objective was to analyze the surface and bulk properties alterations of clinically aged composites used for fixed retention. METHODS: Twenty-six lingual retainers bonded for different time periods (2.2-17.4 years) were retrieved from postorthodontic patients. Fifteen lingual retainers had been cemented by a chemically cured adhesive (Maximum Cure, Reliance Orthodontic Products, Itasca, Ill), and 11 were treated with a photo-cured adhesive (Flow-Tain, Reliance Orthodontic Products)...
October 2016: American Journal of Orthodontics and Dentofacial Orthopedics
Meredith A Olson, Christine M Lohse, Nneka I Comfere
BACKGROUND: The skin biopsy requisition form (RF) serves as a key communication tool for transfer of relevant information related to skin biopsy between clinicians and pathologists. Clinical information in the skin biopsy RF is frequently missing or incomplete. OBJECTIVE: To determine the rates of provision of critical clinical information necessary for histopathologic interpretation in the skin biopsy RF and encounter visit note (EVN). METHODS: A retrospective review of 300 RFs and corresponding EVNs from May 1 to 7, 2012, in a tertiary care dermatology practice...
2016: Journal of Pathology Informatics
Monika V Patidar, Ashish Ramchandra Deshmukh, Maruti Yadav Khedkar
BACKGROUND: Acne vulgaris is the most common disease of the skin affecting adolescents and young adults causing psychological distress. The combination of antibiotic resistance, adverse effects of topical and systemic anti acne medications and desire for high tech approaches have all led to new enthusiasm for light based acne treatment. Intense pulse light (IPL) therapy has three modes of action in acne vulgaris i.e., photochemical, photo thermal and photo immunological. AIMS: (1) to study efficacy of IPL therapy in facial acne vulgaris...
September 2016: Indian Journal of Dermatology
Sameep Kadakia, Alexander Ovchinsky
UNLABELLED: Achieving stable and desirable changes in tip rotation (TR) and tip projection (TP) is among the primary goals of modern day rhinoplasty. The tongue-in-groove (TIG) technique is one technique in rhinoplasty used to improve TR and/or TP. Performing TIG endonasally using a permanent suture can be quite cumbersome as the suture needs to be buried under the skin. We describe a variation of TIG technique for endonasal rhinoplasty using a permanent suture buried in small columellar skin incisions...
October 2016: Facial Plastic Surgery: FPS
Christopher W Baird, Patrick O Myers, Breanna Piekarski, Michele Borisuk, Amara Majeed, Sitaram M Emani, Stephen P Sanders, Meena Nathan, Pedro J Del Nido
OBJECTIVES: Dye-mediated photo-oxidation of pericardium is an alternative method to chemical treatment with glutaraldehyde for cross-linking collagen, providing biostability of the patch material while avoiding late calcification and cytotoxicity. There are few data available, on using photo-oxidation-treated pericardium, in congenital cardiac surgery. This study reports the outcomes using Photofix™ bovine pericardium in neonates, infants, children and young adults undergoing paediatric cardiac surgery...
September 27, 2016: Interactive Cardiovascular and Thoracic Surgery
Frederic Flament, Huixia Qiu
OBJECTIVES: These were two-fold: i) to record through standardized pictures, the possible changes in 31 facial signs induced, in a 6-month period, by the periodical shift from winter to summer in a group of 43 Chinese women and ii) to appraise the preventive effects of a strong photo-protective product, daily applied to the faces of an additional group (N=40) of women of same age-range and presenting same severities of facial signs in winter. METHODS: Facial signs (structural and pigmentation-related) were scored in blind by a panel of 12 experts from photographs taken under standard conditions...
September 28, 2016: International Journal of Cosmetic Science
Mikael Planes, Jérémie Brand, Simon Lewandowski, Stéphanie Remaury, Stéphane Solé, Cédric Le Coz, Stéphane Carlotti, Gilles Sèbe
This work investigates the possibility of using cellulose nanocrystals (CNCs) as biobased nanoadditives in protective polydimethylsiloxane (PDMS) space coatings, to improve the thermal and optical performances of the material. CNCs produced from wood pulp were functionalized in different conditions with the objective to improve their dispersibility in the PDMS matrix, increase their thermal stability and provide photoactive functions. Polysiloxane, cinnamate, chloroacetate and trifluoroacetate moieties were accordingly anchored at the CNCs surface by silylation, using two different approaches, or acylation with different functional vinyl esters...
October 7, 2016: ACS Applied Materials & Interfaces
Muhsin A Al-Dhalimi, Murtadha H Al-Janabi
BACKGROUND: Lasers have been the treatment of choice for Port-wine stain (PWS). However, only one type of laser is not a panacea for all PWS malformations. This is may be due to the great heterogeneity of phenotypic presentation of this congenital anomaly as color, depth, and the site of the lesion. For the treatment of PWS, flash lamp-pumped pulsed dye laser, carbon dioxide, argon, krypton, copper bromide, frequency-doubled neodymium:yttrium-aluminum-garnet (Nd:YAG), and also intense pulsed light sources can be used...
September 26, 2016: Lasers in Surgery and Medicine
S Grether-Beck, A Marini, T Jaenicke, W Stahl, J Krutmann
BACKGROUND: Increasing evidence suggests photo-protection by oral supplementation with ß-carotene and lycopene. OBJECTIVES: We examined the capacity of lycopene rich tomato nutrient complex (TNC) and lutein, to protect against UVA/B- and UVA1 radiation at a molecular level. METHODS: In a placebo-controlled, double blinded, randomized cross over study two actives containing either TNC or lutein were assessed for their capacity to decrease the expression of UVA1 radiation-inducible genes including heme oxygenase-1 (HO-1), intercellular adhesion molecule-1 (ICAM-1) and matrix metalloproteinase-1 (MMP-1)...
September 23, 2016: British Journal of Dermatology
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