keyword
MENU ▼
Read by QxMD icon Read
search

Elastin

keyword
https://www.readbyqxmd.com/read/28210389/the-use-of-lipohydroxy-acid-in-skin-care-and-acne-treatment
#1
REVIEW
Joshua A Zeichner
Lipohydroxy acid is a derivative of salicylic acid with unique properties that explain its clinical effects in the skin. Lipohydroxy acid has skin renewing, exfoliating, and acne treating properties and is a commonly used ingredient in personal skin care products. The slow penetration of lipohydroxy acid results in an individual cell-by-cell exfoliation that is associated with excellent tolerability. Lipohydroxy acid has been shown to induce dermal thickening by stimulating glycosaminoglycans, collagen, and elastin production...
November 2016: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/28208793/chitosan-recombinamer-layer-by-layer-coatings-for-multifunctional-implants
#2
Jeevan Prasaad Govindharajulu, Xi Chen, Yuping Li, Jose Carlos Rodriguez-Cabello, Mrinal Battacharya, Conrado Aparicio
The main clinical problems for dental implants are (1) formation of biofilm around the implant-a condition known as peri-implantitis and (2) inadequate bone formation around the implant-lack of osseointegration. Therefore, developing an implant to overcome these problems is of significant interest to the dental community. Chitosan has been reported to have good biocompatibility and anti-bacterial activity. An osseo-inductive recombinant elastin-like biopolymer (P-HAP), that contains a peptide derived from the protein statherin, has been reported to induce biomineralization and osteoblast differentiation...
February 9, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28203099/a-new-dermocosmetic-containing-retinaldehyde-delta-tocopherol-glucoside-and-glycylglycine-oleamide-for-managing-naturally-aged-skin-results-from-in-vitro-to-clinical-studies
#3
Céline Rouvrais, Daniel Bacqueville, Patrick Bogdanowicz, Marie-José Haure, Laure Duprat, Christine Coutanceau, Nathalie Castex-Rizzi, Hélène Duplan, Valérie Mengeaud, Sandrine Bessou-Touya
INTRODUCTION: Natural aging of skin tissues, the addition of the cumulative action of the time and radiation exposure result in skin atrophy, wrinkles and degeneration of the extracellular matrix (ECM). The aim of the study was to investigate the beneficial effect of a combination containing retinaldehyde (RAL), delta-tocopherol glucoside (delta-TC) and glycylglycine ole-amide (GGO) and of a dermocosmetic containing the combination. MATERIALS AND METHODS: The protective effect of the combination was assessed through in vitro gene expression of ultraviolet (UV)-irradiated fibroblasts...
2017: Clinical, Cosmetic and Investigational Dermatology
https://www.readbyqxmd.com/read/28196941/histopathological-differences-between-the-anterior-and-posterior-brain-arteries-as-a-function-of-aging
#4
William Roth, Susan Morgello, James Goldman, Jay P Mohr, Mitchell S V Elkind, Randolph S Marshall, Jose Gutierrez
BACKGROUND AND PURPOSE: We tested the hypothesis that posterior brain arteries differ pathologically from anterior brain arteries and that this difference varies with age. METHODS: Brain large arteries from 194 autopsied individuals (mean age 56±17 years, 63% men, 25% nonwhite, 17% with brain infarcts) were analyzed to obtain the areas of arterial layers and lumen as well as the relative content of elastin, collagen, and amyloid. Visual rating was used to determine the prevalence of atheroma, calcification, vasa vasorum, pattern of intima thickening, and internal elastic lamina gaps...
February 14, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28192773/a-bioinspired-elastin-based-protein-for-a-cytocompatible-underwater-adhesive
#5
M Jane Brennan, Bridget F Kilbride, Jonathan J Wilker, Julie C Liu
The development of adhesives that can be applied and create strong bonds underwater is a significant challenge for materials engineering. When the adhesive is intended for biomedical applications, further criteria, such as biocompatibility, must be met. Current biomedical adhesive technologies do not meet these needs. In response, we designed a bioinspired protein system that shows promise to achieve biocompatible underwater adhesion coupled with environmentally responsive behavior that is "smart" - that is, it can be tuned to suit a specific application...
January 30, 2017: Biomaterials
https://www.readbyqxmd.com/read/28190824/morphometric-changes-in-the-aortic-arch-with-advancing-age-in-fetal-to-mature-thoroughbred-horses
#6
Chihiro Endoh, Kazuya Matsuda, Minoru Okamoto, Nobuo Tsunoda, Hiroyuki Taniyama
Aortic rupture is a well recognized cause of sudden death in thoroughbred horses. Some microscopic lesions, such as those caused by cystic medial necrosis and medionecrosis, can lead to aortic rupture. However, these microscopic lesions are also observed in normal horses. On the other hand, a previous study of aortic rupture suggested that underlying elastin and collagen deposition disorders might be associated with aortic rupture. Therefore, the purpose of this study was to compare the structural components of the tunica media of the aortic arch, which is composed of elastin, collagen, smooth muscle cells and mucopolysaccharides (MPS), in fetal to mature thoroughbred horses...
February 11, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28186202/inhibition-of-receptor-interacting-protein-kinase-1-with-necrostatin-1s-ameliorates-disease-progression-in-elastase-induced-mouse-abdominal-aortic-aneurysm-model
#7
Qiwei Wang, Ting Zhou, Zhenjie Liu, Jun Ren, Noel Phan, Kartik Gupta, Danielle M Stewart, Stephanie Morgan, Carmel Assa, K Craig Kent, Bo Liu
Abdominal aortic aneurysm (AAA) is a common aortic disease with a progressive nature. There is no approved pharmacological treatment to effectively slow aneurysm growth or prevent rupture. Necroptosis is a form of programmed necrosis that is regulated by receptor-interacting protein kinases (RIPs). We have recently demonstrated that the lack of RIP3 in mice prevented aneurysm formation. The goal of the current study is to test whether perturbing necroptosis affects progression of existing aneurysm using the RIP1 inhibitors Necrostatin-1 (Nec-1) and an optimized form of Nec-1, 7-Cl-O-Nec-1 (Nec-1s)...
February 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28180980/myofibroblast-in-the-ligamentum-flavum-hypertrophic-activity
#8
Junseok W Hur, Taegeun Bae, Sunghyeok Ye, Joo-Hyun Kim, Sunhye Lee, Kyoungmi Kim, Seung-Hwan Lee, Jin-Soo Kim, Jang-Bo Lee, Tai-Hyoung Cho, Jung-Yul Park, Junho K Hur
PURPOSE: Majority of the previous studies compared lumbar spinal stenosis (LSS) and lumbar disc herniation (LDH) patients for analyses of LFH. However, the separation of normal/hypertrophied LF has often been ambiguous and the severity of hypertrophic activity differed. Here, we present a novel analysis scheme for LFH in which myofibroblast is proposed as a major etiological factor for LFH study. METHODS: Seventy-one LF patient tissue samples were used for this study...
February 8, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28179583/pravastatin-activates-activator-protein-2-alpha-to-argument-the-angiotensin-ii-induced-abdominal-aortic-aneurysms
#9
Hui Ma, Wen-Jing Liang, Mei-Rong Shan, Xue-Qing Wang, Sheng-Nan Zhou, Yuan Chen, Tao Guo, Peng Li, Hai-Ya Yu, Chao Liu, Ya-Ling Yin, Yu-Lin Wang, Bo Dong, Xin-Yan Pang, Shuang-Xi Wang
We have previously reported that activation of AMP-activated kinase alpha 2 (AMPKα2) by nicotine or angiotensin II (AngII) instigates formation of abdominal aortic aneurysms (AAA) in Apoe-/- mice. Statins, used to treat hyperlipidemia widely, activate AMPK in vascular cells. We sought to examine the effects of pravastatin on AAA formation and uncover the molecular mechanism. The AAA model was induced by AngII and evaluated by incidence, elastin degradation, and maximal abdominal aortic diameter in Apoe-/- mice...
February 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28176898/effect-of-noncovalent-interaction-on-the-self-assembly-of-a-designed-peptide-and-its-potential-use-as-a-carrier-for-controlled-bfgf-release
#10
Yanfei Liu, Ling Zhang, Wei Wei
Peptide self-assembly is one of the promising bottom-up approaches for creating synthetic supermolecular architectures. Noncovalent interactions such as hydrophobic packing, electrostatic interaction, and polypeptide chain entropy (ΔSC) are the most relevant factors that affect the folding and self-assembly of peptides and the stability of supermolecular structures. The GVGV tetrapeptide is an abundant repeat in elastin, an extracellular matrix protein. In this study, four GVGV-containing peptides were designed with the aim of understanding the effects of these weak interactions on peptide self-assembly...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28169384/characterisation-of-hydration-and-nanophase-separation-during-the-temperature-response-in-hydrophobic-hydrophilic-elastin-like-polypeptide-elp-diblock-copolymers
#11
Katharina Widder, Sarah R MacEwan, Elisabeth Garanger, Vanesa Núñez, Sébastien Lecommandoux, Ashutosh Chilkoti, Dariush Hinderberger
To understand the complex nanoscale dehydration process during the lower critical solution temperature (LCST) based inverse phase transition of a class of thermoresponsive biopolymers, diblock elastin-like polypeptides (ELPs) were investigated by spin probing continuous wave electron paramagnetic resonance (CW EPR) spectroscopy. The diblock copolymers composed of a hydrophobic block and a hydrophilic block showed different mechanisms of a temperature-driven phase transition. While the phase transition temperature is a function of the hydrophobic mass fraction of the diblock ELPs, the hydrophilic block length determines the molecular structure of the polymer aggregates formed above the transition temperature...
February 7, 2017: Soft Matter
https://www.readbyqxmd.com/read/28167957/histological-and-immunohistochemical-evaluation-of-the-efficacy-of-a-new-cosmetic-formulation-in-the-treatment-of-skin-photoaging
#12
M T Truchuelo, N Jiménez, L Miguel-Gomez, A Hermosa, N Sánchez-Neila, J Cuevas
Objective. Mechanism of action of cosmetic products is not often studied. The aim of this study is to determine the histological, immunohistochemical, and clinical changes of a new cosmetic formulation. Methods. Prospective, single-blind, patient-controlled, randomized study in 10 volunteers with mild to moderate skin photoaging on the back of their hands. The product was applied on one hand and a standard cream on the other hand, twice a day for three months. Standardized photographs were taken on basal (T0) and final visit (T1) and skin biopsies were performed...
2017: Dermatology Research and Practice
https://www.readbyqxmd.com/read/28167392/perivascular-extracellular-matrix-hydrogels-mimic-native-matrix-microarchitecture-and-promote-angiogenesis-via-basic-fibroblast-growth-factor
#13
George R Fercana, Saigopalakrishna Yerneni, Marie Billaud, Jennifer C Hill, Paul VanRyzin, Tara D Richards, Brian M Sicari, Scott A Johnson, Stephen F Badylak, Phil G Campbell, Thomas G Gleason, Julie A Phillippi
Extracellular matrix (ECM)-derived bioscaffolds have been shown to elicit tissue repair through retention of bioactive signals. Given that the adventitia of large blood vessels is a richly vascularized microenvironment, we hypothesized that perivascular ECM contains bioactive signals that influence cells of blood vessel lineages. ECM bioscaffolds were derived from decellularized human and porcine aortic adventitia (hAdv and pAdv, respectively) and then shown have minimal DNA content and retain elastin and collagen proteins...
April 2017: Biomaterials
https://www.readbyqxmd.com/read/28164126/the-involvement-of-mir-29b-3p-in-arterial-calcification-by-targeting-matrix-metalloproteinase-2
#14
Wenhong Jiang, Zhanman Zhang, Han Yang, Qiuning Lin, Chuangye Han, Xiao Qin
Vascular calcification is a risk predictor and common pathological change in cardiovascular diseases that are associated with elastin degradation and phenotypic transformation of vascular smooth muscle cells via gelatinase matrix metalloproteinase-2 (MMP2). However, the mechanisms involved in this process remain unclear. In this study, we investigated the relationships between miR-29b-3p and MMP2, to confirm miR-29b-3p-mediated MMP2 expression at the posttranscriptional level in arterial calcification. In male Sprague Dawley rats, arterial calcification was induced by subcutaneous injection of a toxic dose of cholecalciferol...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28163239/enhanced-elastin-synthesis-and-maturation-in-human-vascular-smooth-muscle-tissue-derived-from-induced-pluripotent-stem-cells
#15
Joon H Eoh, Nian Shen, Jacqueline A Burke, Svenja Hinderer, Zhiyong Xia, Katja Schenke-Layland, Sharon Gerecht
: Obtaining vascular smooth muscle tissue with mature, functional elastic fibers is a key obstacle in tissue-engineered blood vessels. Poor elastin secretion and organization leads to a loss of specialization in contractile smooth muscle cells, resulting in over proliferation and graft failure. In this study, human induced-pluripotent stem cells (hiPSCs) were differentiated into early smooth muscle cells, seeded onto a hybrid poly(ethylene glycol) dimethacrylate/poly (L-lactide) (PEGdma-PLA) scaffold and cultured in a bioreactor while exposed to pulsatile flow, towards maturation into contractile smooth muscle tissue...
February 2, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28159615/immobilization-of-r-%C3%AF-transaminase-on-mno2-nanorods-for-catalyzing-the-conversion-of-r-1-phenylethylamine
#16
Jian Sun, Wen-Hui Cui, Kun Du, Qian Gao, Mengmeng Du, Peijun Ji, Wei Feng
R-ɷ-transaminases transfer an amino group from an amino donor (e.g. (R)-1-phenylethylamine) onto an amino acceptor (e.g. pyruvate), resulting a co-product (e.g. d-alanine). This work intends to immobilize R-ɷ-Transaminase on MnO2 nanorods to achieve multienzyme catalysis. R-ɷ-Transaminase (RTA) and d-amino acid oxidase (DAAO) have been fused to an elastin-like polypeptide (ELP) separately through genetic engineering of the enzymes. ELP-RTA and ELP-DAAO have been separately immobilized on polydopamine-coated MnO2 nanorods...
January 31, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28158945/f%C3%A3-rster-resonance-energy-transfer-paired-hydrogel-forming-silk-elastin-like-recombinamers-by-recombinant-conjugation-of-fluorescent-proteins
#17
Arturo Ibáñez-Fonseca, Matilde Alonso, Francisco Javier Arias, José Carlos Rodríguez-Cabello
In the last decades, recombinant structural proteins have become very promising in addressing different issues such as the lack of traceability of biomedical devices or the design of more sensitive biosensors. Among them, we find elastin-like recombinamers (ELRs), which can be designed to self-assemble into diverse structures, such as hydrogels. Furthermore, they might be combined with other protein polymers, such as silk, to give silk-elastin-like recombinamers (SELRs), holding the properties of both proteins...
February 15, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28155705/re-examination-of-the-mechanical-anisotropy-of-porcine-thoracic-aorta-by-uniaxial-tensile-tests
#18
Qiang Chen, Yan Wang, Zhi-Yong Li
OBJECTIVE: Considering past studies on the orthotropic anisotropy of arteries in the circumferential and axial directions, this work aims to experimentally study the anisotropic behaviour of arteries by tensioning multi-directional strips of porcine thoracic aorta. METHODS: Histology is first analyzed by staining arterial sections of three orthotropic (axial, circumferential, and radial) planes. 168 stripped samples from 21 aortas are categorized into three loading-rate groups to investigate the influence of loading rates on the Young's modulus and ultimate stress...
December 28, 2016: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28151642/tyrosine-selective-functionalization-for-bio-orthogonal-cross-linking-of-engineered-protein-hydrogels
#19
Christopher M Madl, Sarah C Heilshorn
Engineered protein hydrogels have shown promise as artificial extracellular matrix materials for the 3D culture of stem cells due to the ability to decouple hydrogel biochemistry and mechanics. The modular design of these proteins allows for incorporation of various bioactive sequences to regulate cellular behavior. However, the chemistry used to cross-link the proteins into hydrogels can limit what bioactive sequences can be incorporated, in order to prevent nonspecific cross-linking within the bioactive region...
February 2, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28151005/allograft-heart-valves-current-aspects-and-future-applications
#20
Milan Lisy, Guenay Kalender, Katja Schenke-Layland, Kelvin G M Brockbank, Anna Biermann, Ulrich Alfred Stock
Human heart valve allografts continue to represent almost perfect substitutes for heart valves. They have optimal hemodynamic characteristics and are highly resistant to infections. The first clinical use of allograft heart valves was as homovitals being transplanted after antibiotic incubation without any preservation. Since 1968, relatively standardized frozen cryopreservation (SFC) has been employed, including storage in vapor-phase liquid nitrogen. Disadvantages, particularly in pediatric patients, are limited availability due to organ scarcity, inability to grow, degeneration, immune response, and long-term failure...
February 2, 2017: Biopreservation and Biobanking
keyword
keyword
14733
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"