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https://www.readbyqxmd.com/read/28088806/effects-of-aloe-sterol-supplementation-on-skin-elasticity-hydration-and-collagen-score-a-12-week-double-blind-randomized-controlled-trial
#1
Miyuki Tanaka, Yuki Yamamoto, Eriko Misawa, Kazumi Nabeshima, Marie Saito, Koji Yamauchi, Fumiaki Abe, Fukumi Furukawa
BACKGROUND/AIMS: Our previous study confirmed that Aloe sterol stimulates collagen and hyaluronic acid production in human dermal fibroblasts. This study aims to investigate whether Aloe sterol intake affects skin conditions. METHODS: We performed a 12-week, randomized, double-blind, placebo-controlled study to evaluate the effects of oral Aloe sterol supplementation on skin elasticity, hydration, and the collagen score in 64 healthy women (age range 30-59 years; average 44...
January 14, 2017: Skin Pharmacology and Physiology
https://www.readbyqxmd.com/read/28086769/effect-of-ginseng-extract-on-the-tgf-%C3%AE-1-signaling-pathway-in-ccl4-induced-liver-fibrosis-in-rats
#2
Mohamed M Hafez, Sherifa S Hamed, Manal F El-Khadragy, Zeinab K Hassan, Salim S Al Rejaie, Mohamed M Sayed-Ahmed, Naif O Al-Harbi, Khalid A Al-Hosaini, Mohamed M Al-Harbi, Ali R Alhoshani, Othman A Al-Shabanah, Shakir Dekhal Alsharari
BACKGROUND: Liver diseases are major global health problems. Ginseng extract has antioxidant, immune-modulatory and anti-inflammatory activities. This study investigated the effect of ginseng extract on carbon tetrachloride (CCl4)-induced liver fibrosis in rats. METHODS: Male Wistar rats were divided into four groups: control group, ginseng group, CCl4 group and CCl4 + ginseng group. Liver injury was induced by the intraperitoneal (I.P) injection of 3 ml/kg CCl4 (30% in olive oil) weekly for 8 weeks...
January 13, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28078603/a-comparison-of-the-anti-inflammatory-effects-of-cis-9-trans-11-conjugated-linoleic-acid-to-celecoxib-in-the-collagen-induced-arthritis-model
#3
Jake M Olson, Alexander W Haas, Jennifer Lor, Holly S McKee, Mark E Cook
Cyclooxygenase (COX)-2 inhibitors, such as celecoxib, for chronic inflammatory disease are associated with adverse health events, while cis-9, trans-11 (c9t11) conjugated linoleic acid (CLA) is anti-inflammatory without adverse events attributed to pure intake. Mechanistically, celecoxib and c9t11 disrupt the arachidonic acid cascade; however, the equivalency of anti-inflammatory effects between these compounds is unknown. Therefore, to test the hypothesis that 0.5% dietary c9t11 reduces inflammation equivalently to a celecoxib dose intended to treat rheumatoid arthritis (RA; 5 mg/kg bw), arthritic mice received diets containing one of the following supplements: 1% corn oil (CO, w/w), 0...
January 11, 2017: Lipids
https://www.readbyqxmd.com/read/28071973/collagen-cross-linking-biophysical-biochemical-and-biological-response-analysis
#4
L Delgado, Kieran Fuller, Dimitrios I Zeugolis
Extracted forms of collagen are subjected to chemical cross-linking to enhance their stability. However, traditional cross-linking approaches are associated with toxicity and inflammation. This work investigates the stabilisation capacity, cytotoxicity and inflammatory response of collagen scaffolds cross-linked with glutaraldehyde, carbodiimide, 4-arm polyethylene glycol succinimidyl glutarate, genipin and oleuropein. Although all cross-linking methods reduced free amine groups, variable data were obtained with respect to denaturation temperature, resistance to collagenase digestion and mechanical properties...
January 10, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28069103/does-cu-supplementation-affect-the-mechanical-and-structural-properties-and-mineral-content-of-red-deer-antler-bone-tissue
#5
P Gambín, M P Serrano, L Gallego, A García, J Cappelli, F Ceacero, T Landete-Castillejos
The main factors affecting the mechanical (and other) properties of bone, including antler, are the proportions of ash (especially Ca and P) and collagen content. However, some trace minerals may also play more important roles than would be expected, given their low levels in bone and antler. One such trace mineral is Cu. Here, we studied the effects of Cu supplementation on the mechanical and structural characteristics, and mineral content of antlers from yearling and adult (4 years of age) red deer fed a balanced diet...
January 10, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28063256/dissection-of-the-host-pathogen-interaction-in-human-tuberculosis-using-a-bioengineered-3-dimensional-model
#6
Liku B Tezera, Magdalena K Bielecka, Andrew Chancellor, Michaela T Reichmann, Basim Al Shammari, Patience Brace, Alex Batty, Annie Tocheva, Sanjay Jogai, Ben G Marshall, Marc Tebruegge, Suwan N Jayasinghe, Salah Mansour, Paul T Elkington
Cell biology differs between traditional cell culture and 3-dimensional (3-D) systems, and is modulated by the extracellular matrix. Experimentation in 3-D presents challenges, especially with virulent pathogens. Mycobacterium tuberculosis (Mtb) kills more humans than any other infection and is characterised by a spatially organised immune response and extracellular matrix remodelling. We developed a 3-D system incorporating virulent mycobacteria, primary human blood mononuclear cells and collagen-alginate matrix to dissect the host-pathogen interaction...
January 7, 2017: ELife
https://www.readbyqxmd.com/read/28060847/enhanced-chondrogenic-differentiation-of-human-umbilical-cord-wharton-s-jelly-derived-mesenchymal-stem-cells-by-gsk-3-inhibitors
#7
Prapot Tanthaisong, Sumeth Imsoonthornruksa, Apichart Ngernsoungnern, Piyada Ngernsoungnern, Mariena Ketudat-Cairns, Rangsun Parnpai
Articular cartilage is an avascular, alymphatic, and aneural system with very low regeneration potential because of its limited capacity for self-repair. Mesenchymal stem cells (MSCs) are the preferred choice for cell-based therapies. Glycogen synthase kinase 3 (GSK-3) inhibitors are compounds that can induce the Wnt signaling pathway, which is involved in chondrogenesis and cartilage development. Here, we investigated the influence of lithium chloride (LiCl) and SB216763 synergistically with TGF-β3 on chondrogenic differentiation in human mesenchymal stem cells derived from Wharton's jelly tissue (hWJ-MSCs)...
2017: PloS One
https://www.readbyqxmd.com/read/28049007/cellular-aging-towards-osteoarthritis
#8
REVIEW
Yu-Sheng Li, Wen-Feng Xiao, Wei Luo
Osteoarthritis (OA) is a common form of degenerative joint disease. Aging process is supposed to be a leading predictor for developing OA. In this review, we have discussed the potential roles of aging in OA, a better understanding of which might delay or stop the development and progression of OA. Different cellular signaling mechanisms are involved process of aging that induces age-related changes in chondrocytes. These changes influence the expression of catabolic factors resulting in increased production of matrix metalloproteinases and cytokines, reduced levels of collagen type II and aggrecan synthesis, and increased production of reactive oxygen species (ROS)...
December 31, 2016: Mechanisms of Ageing and Development
https://www.readbyqxmd.com/read/28041746/evaluation-of-cultured-human-dermal-and-dermo-epidermal-substitutes-focusing-on-extracellular-matrix-components-comparison-of-protein-and-rna-analysis
#9
Corien Oostendorp, Sarah Meyer, Monia Sobrio, Joyce van Arendonk, Ernst Reichmann, Willeke F Daamen, Toin H van Kuppevelt
Treatment of full-thickness skin defects with split-thickness skin grafts is generally associated with contraction and scar formation and cellular skin substitutes have been developed to improve skin regeneration. The evaluation of cultured skin substitutes is generally based on qualitative parameters focusing on histology. In this study we focused on quantitative evaluation to provide a template for comparison of human bio-engineered skin substitutes between clinical and/or research centers, and to supplement histological data...
December 29, 2016: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28009413/role-of-dextran-in-maintaining-adhesive-and-stiffness-properties-of-prestripped-dmek-lenticules
#10
Mohit Parekh, Alessandro Ruzza, Rosa Di Mundo, Stefano Ferrari, Giuseppina Recchia, Hossein Elbadawy, Giuseppe Carbone, Diego Ponzin
PURPOSE: To investigate the adhesive and stiffness properties of prestripped Descemet membrane endothelial keratoplasty (DMEK) lenticules in different preservation conditions (with and without dextran). METHODS: The study included 3 conditions: (C1) tissues collected from tissue culture media (TCM), stripped and preserved in TCM; (C2) tissues collected from transport media (TM) (TCM supplemented with 6% dextran T-500), stripped and preserved in TM; and (C3) tissues collected from TCM, stripped and preserved in TM...
November 25, 2016: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28008936/enhanced-locomotion-efficiency-of-a-bio-inspired-walking-robot-using-contact-surfaces-with-frictional-anisotropy
#11
Poramate Manoonpong, Dennis Petersen, Alexander Kovalev, Florentin Wörgötter, Stanislav N Gorb, Marlene Spinner, Lars Heepe
Based on the principles of morphological computation, we propose a novel approach that exploits the interaction between a passive anisotropic scale-like material (e.g., shark skin) and a non-smooth substrate to enhance locomotion efficiency of a robot walking on inclines. Real robot experiments show that passive tribologically-enhanced surfaces of the robot belly or foot allow the robot to grip on specific surfaces and move effectively with reduced energy consumption. Supplementing the robot experiments, we investigated tribological properties of the shark skin as well as its mechanical stability...
December 23, 2016: Scientific Reports
https://www.readbyqxmd.com/read/28003207/breaking-down-starting-up-can-a-vitamin-c-enriched-gelatin-supplement-before-exercise-increase-collagen-synthesis
#12
Mark Levine, Pierre-Christian Violet
No abstract text is available yet for this article.
January 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/27997529/renal-dysfunction-in-early-adulthood-following-birth-asphyxia-in-male-spiny-mice-and-its-amelioration-by-maternal-creatine-supplementation-during-pregnancy
#13
Stacey J Ellery, Domenic A LaRosa, Luise Cullen-McEwen, Russell D Brown, Rod J Snow, David W Walker, Michelle M Kett, Hayley Dickinson
BACKGROUND: Acute Kidney Injury (AKI) affects ~70% of asphyxiated newborns, and increases their risk of developing chronic kidney disease (CKD) later in life. AKI is driven by renal oxygen deprivation during asphyxia, thus we hypothesized that creatine administered antenatally would protect the kidney from the long-term effects of birth asphyxia. METHODS: Pregnant spiny mice were fed standard chow or chow supplemented with 5% creatine from 20-days gestation (mid-getstation)...
December 20, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27995657/protective-effects-of-aloe-sterols-against-uvb-induced-photoaging-in-hairless-mice
#14
Eriko Misawa, Miyuki Tanaka, Marie Saito, Kazumi Nabeshima, Ruiqing Yao, Kouji Yamauchi, Fumiaki Abe, Yuki Yamamoto, Fukumi Furukawa
BACKGROUND: Aloe vera is a traditional medical plant whose gel has been widely used in skin care. Previously, we have identified Aloe sterols from Aloe vera as active ingredients. The present study investigated the protective effects of Aloe sterols without polysaccharides, against ultraviolet B (UVB)-induced skin photoaging in mice using Aloe vera gel extract (AVGE) obtained by supercritical fluid extraction. METHODS: AVGE was supplemented in the diet (12 or 120 ppm) and HR-1 hairless mice were exposed to UVB irradiation for 7 weeks...
December 20, 2016: Photodermatology, Photoimmunology & Photomedicine
https://www.readbyqxmd.com/read/27982117/galectin-3-induces-a-pro-degradative-inflammatory-gene-signature-in-human-chondrocytes-teaming-up-with-galectin-1-in-osteoarthritis-pathogenesis
#15
Daniela Weinmann, Karin Schlangen, Sabine André, Sebastian Schmidt, Sonja M Walzer, Bernd Kubista, Reinhard Windhager, Stefan Toegel, Hans-Joachim Gabius
Inflammatory chemo- and cytokines and matrix-degrading proteases underlie the progression of osteoarthritis (OA). Aiming to define upstream regulators for these disease markers, we pursued initial evidence for an upregulation of members of the adhesion/growth-regulatory galectin family. Immunohistochemical localization of galectin-3 (Gal-3) in sections of human cartilage with increasing levels of degeneration revealed a linear correlation reaching a chondrocyte positivity of 60%. Presence in situ was cytoplasmic, the lectin was secreted from OA chondrocytes in culture and binding of Gal-3 yielded lactose-inhibitable surface staining...
December 16, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27980494/in-vivo-osteoinduction-evaluating-2-beta-coxatene-as-an-immunoinductive-compound-and-novel-ingredient-for-joint-support
#16
Katherine Spinks, James J Scaffidi
CONTEXT: Osteoarthritis (OA) is a degenerative joint disease characterized by progressive loss of articular cartilage. Many treatments lack the ability to stimulate the growth of native cartilage tissue while they simultaneously increase joint comfort. For the past few decades, dietary supplements have been investigated for the ability to both address joint inflammation and stimulate cartilage tissue. OBJECTIVES: The present study intended to examine the supplement's in vivo osteoinductive capabilities and clinical efficacy for overall joint health...
October 2016: Integrative Medicine
https://www.readbyqxmd.com/read/27940204/potentiation-of-hepatic-stellate-cell-activation-by-extracellular-atp-is-dependent-on-p2x7r-mediated-nlrp3-inflammasome-activation
#17
Shuang Jiang, Yu Zhang, Jin-Hua Zheng, Xia Li, You-Li Yao, Yan-Ling Wu, Shun-Zong Song, Peng Sun, Ji-Xing Nan, Li-Hua Lian
Purinergic receptor P2x7 (P2x7R) is a key modulator of liver inflammation and fibrosis. The present study aimed to investigate the role of P2x7R in hepatic stellate cells activation. Lipopolysaccharide (LPS) or the conditioned medium (CM) from LPS-stimulated RAW 264.7 mouse macrophages was supplemented to human hepatic stellate cells, LX-2 for 24h and P2x7R selective antagonist A438079 (10μM) was supplemented to LX-2 cells 1h before LPS or CM stimulation. In addition LX-2 cells were primed with LPS for 4h and subsequently stimulated for 30min with 3mM of adenosine 5'-triphosphate (ATP)...
December 8, 2016: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/27930090/sonoelastography-of-the-common-flexor-tendon-of-the-elbow-with-histologic-agreement-a-cadaveric-study
#18
Andrea S Klauser, Mathias J Pamminger, Ethan J Halpern, Mohamed M H Abd Ellah, Bernhard Moriggl, Mihra S Taljanovic, Christian Deml, Judith Sztankay, Guenter Klima, Leonhard Gruber, Werner R Jaschke
Purpose To determine the correlation of the results of conventional B-mode ultrasonography (US) and compression sonoelastography with histologic results in common flexor tendons of the elbow in human cadavers. Materials and Methods Twenty-five common flexor tendons were evaluated in 16 fresh, unembalmed cadavers of 11 women with a median age of 85 years (range, 71-101 years) and five men with a median age of 78 years (range, 70-88 years). Informed consent was provided according to the last will of the donors...
December 7, 2016: Radiology
https://www.readbyqxmd.com/read/27925619/moderate-hyperoxia-induces-extracellular-matrix-remodeling-by-human-fetal-airway-smooth-muscle-cells
#19
Elizabeth R Vogel, Rodney D Britt, Arij Faksh, Ine Kuipers, Hitesh Pandya, Y S Prakash, Richard J Martin, Christina M Pabelick
BACKGROUND: Premature infants are at increased risk for airway diseases, such as wheezing and asthma, because of early exposure to risk factors including hyperoxia. As in adult asthma, airway remodeling and increased extracellular matrix (ECM) deposition is involved. METHODS: We assessed the impact of 24-72 h of moderate hyperoxia (50%) on human fetal airway smooth muscle (fASM) ECM deposition through western blot, modified in-cell western, and zymography techniques...
December 7, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27898233/hyaluronan-stimulates-chondrogenic-gene-expression-in-human-meniscus-cells
#20
Takaaki Tanaka, Takayuki Furumatsu, Shinichi Miyazawa, Masataka Fujii, Hiroto Inoue, Yuya Kodama, Toshifumi Ozaki
: Purpose/Aim of the Study: Inner meniscus cells have a chondrocytic phenotype, whereas outer meniscus cells have a fibroblastic phenotype. In this study, we examined the effect of hyaluronan on chondrocytic gene expression in human meniscus cells. MATERIALS AND METHODS: Human meniscus cells were prepared from macroscopically intact lateral meniscus. Inner and outer meniscus cells were obtained from the inner and outer halves of the meniscus. The cells were stimulated with hyaluronan diluted in Dulbecco's modified Eagle's medium without serum to the desired concentration (0, 10, 100, and 1000 μg/mL) for 2-7 days...
November 29, 2016: Connective Tissue Research
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