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8 papers 0 to 25 followers
https://www.readbyqxmd.com/read/23986871/in-vivo-evaluation-of-the-skin-tensile-strength-by-the-suction-method-pilot-study-coping-with-hysteresis-and-creep-extension
#1
Gérald E Piérard, Sébastien Piérard, Philippe Delvenne, Claudine Piérard-Franchimont
From an engineering standpoint, both the skin and subcutaneous tissue act as interconnected load-transmitting structures. They are subject to a variety of intrinsic and environmental influences. Changes in the cutaneous viscoelasticity represent an important aspect in a series of skin conditions. The aim of this work was to explore the methodology of biomechanical measurements in order to better appreciate the evolution and severity of some connective tissue diseases. The Cutometer MPA 580 (C+K electronic) was used in the steep and progressive suction procedures...
2013: ISRN Dermatology
https://www.readbyqxmd.com/read/26461827/topical-human-epidermal-growth-factor-in-the-treatment-of-senile-purpura-and-the-prevention-of-dermatoporosis
#2
Braden McKnight, Rachel Seidel, Ron Moy
BACKGROUND: Senile purpura presents itself as a largely unexplored challenge as it has been long thought of as a benign condition without long-term health sequelae. It is becoming increasingly accepted that skin aging not only results in cosmetic disturbances, but as a functional ones. With modern increases in lifespan, skin atrophy associated with solar damage is presenting as a clinically significant inability to mechanically protect patients. This chronic cutaneous insufficiency/fragility syndrome was recently termed dermatoporosis and senile purpura appears to be a visible marker of early stage dysfunction...
October 2015: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/17911985/dermatoporosis-a-chronic-cutaneous-insufficiency-fragility-syndrome-clinicopathological-features-mechanisms-prevention-and-potential-treatments
#3
REVIEW
Gürkan Kaya, Jean-Hilaire Saurat
BACKGROUND: Skin aging has long been considered only as a cosmetic problem. With the increase in lifespan, we are now more often experiencing a further dimension of skin aging, which is no longer only cosmetic, but also functional, in the sense that the skin has lost its protective mechanical function. Dermatoporosis is the name proposed to capture, in a holistic approach, all the aspects of this chronic cutaneous insufficiency/fragility syndrome. OBSERVATIONS: In this paper, we review the clinical aspects of dermatoporosis, its histological features and the current understanding of its etiological factors...
2007: Dermatology: International Journal for Clinical and Investigative Dermatology
https://www.readbyqxmd.com/read/22499444/new-therapeutic-targets-in-dermatoporosis
#4
G Kaya
Dermatoporosis is a novel term proposed to describe the chronic cutaneous insufficiency/fragility syndrome characterized by an extreme skin atrophy. Dermatoporosis is principally due to chronological aging and long-term and unprotected sun exposure, but it may also result from the chronic use of topical and systemic corticosteroids. We have recently proposed a membrane organelle, hyalurosome, composed of molecules involved in hyaluronate (HA) metabolism and cell signaling in the keratinocytes, such as principal HA receptor CD44, heparin-binding epidermal growth factor (HB-EGF), HB-EGF receptor erbB1 and HA synthase 3 (HAS3), which is functionally defective in dermatoporosis and may be a target for intervention...
April 2012: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/25138066/hyalurosome-gene-regulation-and-dose-dependent-restoration-of-skin-atrophy-by-retinaldehyde-and-defined-size-hyaluronate-fragments-in-dermatoporosis
#5
Damjan S Nikolic, Charis Ziori, Maria Kostaki, Lionel Fontao, Jean-Hilaire Saurat, Gürkan Kaya
BACKGROUND: Dermatoporosis is an emerging clinical condition caused by chronological skin aging, long-term sun exposure and chronic use of corticosteroids; however, genomic expression in dermatoporosis and the efficacy of different therapeutic approaches to prevent and treat dermatoporosis have not been investigated so far. OBJECTIVE: We examined the possible effect of topical retinaldehyde (RAL) and defined-size hyaluronate fragments (HAFi) on the expression of hyalurosome genes potentially involved in the pathogenesis of dermatoporosis...
2014: Dermatology: International Journal for Clinical and Investigative Dermatology
https://www.readbyqxmd.com/read/26403394/immunomodulatory-effects-of-vitamin-d-on-skin-inflammation
#6
REVIEW
E Toniato, E Spinas, A Saggini, S K Kritas, A Caraffa, P Antinolfi, R Saggini, F Pandolfi, P Conti
Vitamin D has a major role in calcium absorption and maintenance of healthy bones. Vitamin D is also involved in cancer, cardiovascular system, allergic diseases, immune regulation and immune disor¬ders. Irradiation of food as well as animals produces vitamin D and more than 90% of previtamin D3 synthesis in the skin occurs in the epidermis. Vitamin D receptor has been found in many cells including T and B lymphocytes, macrophages, mast cells, NK cells and Tregs, and it selectively binds with high affinity to its ligand...
July 2015: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/24160248/skin-repair-properties-of-d-limonene-and-perillyl-alcohol-in-murine-models
#7
Patrizia A d'Alessio, Massoud Mirshahi, Jean-Francois Bisson, Marie C Bene
The orange-peel derived terpene d-Limonene, probably through its metabolite, perillyl alcohol (POH), has been reported to have tissue-repair properties. Two murine models of respectively 12-O-Tetradecanoylphorbol-13-Acetate (TPA)-induced dermatitis and mechanical skin lesion were used here to assess the efficacy of d-Limonene or POH applied topically. Macroscopic and microscopic evaluation of skin lesions was performed as well as that of P-selectin expression, together with measurements of serum concentrations of IL-1β, IL-6 and TNF-α in the first model...
March 2014: Anti-inflammatory & Anti-allergy Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/23223147/inhibition-of-putative-hyalurosome-platform-in-keratinocytes-as-a-mechanism-for-corticosteroid-induced-epidermal-atrophy
#8
Laurent Barnes, Frédérique Ino, Fabienne Jaunin, Jean-Hilaire Saurat, Gürkan Kaya
The main limitation of using topical corticosteroids in dermatology is their atrophic effects on the skin. We have previously proposed a molecular platform composed of CD44, EGFR, and hyaluronate synthase (HAS) that is functionally defective in dermatoporosis, a chronic cutaneous insufficiency/fragility syndrome. In this study, we explored the molecular mechanisms of the skin atrophy induced by corticosteroids. We observed an important skin atrophy and a significant decrease of hyaluronic acid (HA), its main cell surface receptor CD44, and F-actin in mouse skin treated with topical clobetasol propionate (CP)...
April 2013: Journal of Investigative Dermatology
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