Biomaterial Database

Molecular mechanisms of cutaneous aging. Age-associated connective tissue alterations in the dermis. 1989

J Uitto, and M J Fazio, and D R Olsen

Department of Dermatology, Jefferson Medical College, Philadelphia, PA 19107.

Clinically detectable, age-associated cutaneous changes result from two independent processes: chronologic aging and actinic irradiation. Several lines of evidence suggest that these two processes have different biologic, biochemical, and molecular mechanisms. This review summarizes the current understanding of age-associated alterations in the biochemistry and molecular biology of the extracellular matrix.

UI	MeSH Term	Description	Entries
D003094	Collagen	A polypeptide substance comprising about one third of the total protein in mammalian organisms. It is the main constituent of SKIN; CONNECTIVE TISSUE; and the organic substance of bones (BONE AND BONES) and teeth (TOOTH).	Avicon,Avitene,Collagen Felt,Collagen Fleece,Collagenfleece,Collastat,Dermodress,Microfibril Collagen Hemostat,Pangen,Zyderm,alpha-Collagen,Collagen Hemostat, Microfibril,alpha Collagen
D004549	Elastin		alpha-Elastin,kappa-Elastin,alpha Elastin,kappa Elastin
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000368	Aged	A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available.	Elderly
D000375	Aging	The gradual irreversible changes in structure and function of an organism that occur as a result of the passage of time.	Senescence,Aging, Biological,Biological Aging
D012867	Skin	The outer covering of the body that protects it from the environment. It is composed of the DERMIS and the EPIDERMIS.
D012879	Skin Physiological Phenomena	The functions of the skin in the human and animal body. It includes the pigmentation of the skin.	Skin Physiological Processes,Skin Physiology,Physiology, Skin,Skin Physiological Concepts,Skin Physiological Phenomenon,Skin Physiological Process,Concept, Skin Physiological,Concepts, Skin Physiological,Phenomena, Skin Physiological,Phenomenas, Skin Physiological,Phenomenon, Skin Physiological,Phenomenons, Skin Physiological,Physiological Concept, Skin,Physiological Concepts, Skin,Physiological Phenomena, Skin,Physiological Phenomenas, Skin,Physiological Phenomenon, Skin,Physiological Phenomenons, Skin,Process, Skin Physiological,Processes, Skin Physiological,Skin Physiological Concept,Skin Physiological Phenomenas,Skin Physiological Phenomenons
D014466	Ultraviolet Rays	That portion of the electromagnetic spectrum immediately below the visible range and extending into the x-ray frequencies. The longer wavelengths (near-UV or biotic or vital rays) are necessary for the endogenous synthesis of vitamin D and are also called antirachitic rays; the shorter, ionizing wavelengths (far-UV or abiotic or extravital rays) are viricidal, bactericidal, mutagenic, and carcinogenic and are used as disinfectants.	Actinic Rays,Black Light, Ultraviolet,UV Light,UV Radiation,Ultra-Violet Rays,Ultraviolet Light,Ultraviolet Radiation,Actinic Ray,Light, UV,Light, Ultraviolet,Radiation, UV,Radiation, Ultraviolet,Ray, Actinic,Ray, Ultra-Violet,Ray, Ultraviolet,Ultra Violet Rays,Ultra-Violet Ray,Ultraviolet Black Light,Ultraviolet Black Lights,Ultraviolet Radiations,Ultraviolet Ray