1354 results about "Skin cell" patented technology

The present invention relates to the discovery of a transdermal delivery system that can deliver high molecular weight pharmaceuticals and cosmetic agents to skin cells. A novel transdermal delivery system with therapeutic and cosmetic application and methods of use of the foregoing is disclosed.

In vivo methods are provided for using an electric field to delivery therapeutic or immunizing treatment to a subject by applying non-invasive, user-friendly electrodes to the surface of the skin. Thus, therapeutic or immunizing agents can be delivered into cells of skin for local and systemic treatments or for immunization with optimal gene expression and minimal tissue damage. In particular, therapeutic agents include naked or formulated nucleic acid, polypeptides and chemotherapeutic agents.

The present invention relates generally to composition and methods for topical application to skin. More particularly, it relates to treatment of scars and rosacea, and other aspects of skin care. A composition is disclosed having a skin toner for cleansing a skin surface, removing dead skin cells, restoring alkali balance, and shrinking skin pores; and a skin moisturizer for increasing water content in the external layers of the skin.

An improved method is provided to enhance skin appearance and health, in which skin is cleaned (or exfoliated) and conditioned by use of microelements affixed to a base element or hand-held patch. For the microstructure used in the improved method, the dimensions of the microelements are controlled so as to remove a certain number of layers of skin cells and to accumulate and retain those skin cells, along with other foreign substances, into areas between the microelements. In another embodiment of the improved method, a conditioning compound or therapeutic active can be applied to the exfoliated skin to enhance the skin. Moreover, the amount of skin cells accumulated using the improved method represents a self-limiting maximum quantity that cannot be substantially exceeded regardless of the number of attempts by a user to re-use the microstructure apparatus associated with the improved method. Some of the microelement shapes are purposefully designed with distal ends that exhibit sharp edges rather than sharp tips to reduce skin irritation resulting from use of the improved method.

A method and device for inducing or promoting growth and proliferation of skin cells or tissue or for controlling bacterial skin infection is described. The skin cells are irradiated with a low-intensity broad spectrum light at a wavelength of between about 340 to 3,000 nm. The increase in rate of cultivated cells is useful for example to obtain skin-like tissue needed for skin grafts or for promoting healing of skin wounds or lesions. Light-induced skin bacteria control is useful for example in the treatment of bacterial infections of the skin.

A method of isolating epithelial cells from a human skin tissue or internal organ tissue using trypsin and ethylenediamine tetraacetic acid (EDTA) simultaneously with the application of magnetic stirring, a method of preconditioning isolated biological cells by the application of physical stimulus, i.e., strain, are provided. Epithelial cells can be isolated by the method with increased yield, colony forming efficiency (CFE), and colony size. Also, the increased percentage of stem cells in isolated cells is advantageous in therapeutic tissue implantation by autologous or allogeneic transplantation. In skin cells preconditioned by the application of strain, cell division is facilitated, and the secretion of extracellular matrix components and growth factors and the activity of matrix metalloproteinases (MMPs) are improved. When preconditioned cells are implanted by autologous or allogeneic transplantation to heal a damaged tissue, the improved cell adhesion, mobility, and viability provides a biological adjustment effect against a variety of stresses or physical stimuli which the cells would undergo after implantation, with improved capability of integration into host tissue, thereby markedly improving the probability of success in skin grafting.

In vivo methods are provided for using an electric field to delivery therapeutic or immunizing treatment to a subject by applying non-invasive, user-friendly electrodes to the surface of the skin. Thus, therapeutic or immunizing agents can be delivered into cells of skin for local and systemic treatments or for immunization with optimal gene expression and minimal tissue damage. In particular, therapeutic agents include naked or formulated nucleic acid, polypeptides and chemotherapeutic agents.

An improved method and apparatus is provided as a system to enhance skin appearance and health, in which skin is cleaned (or exfoliated) and conditioned by use of microelements affixed to a base element or hand-held patch. The dimensions of the microelements are controlled so as to remove a certain number of layers of skin cells and to accumulate those skin cells, along with other foreign substances, into areas between the microelements. In addition, a conditioning compound or therapeutic active can be applied to the exfoliated skin to enhance the skin. Moreover, the amount of accumulated skin cells represents a self-limiting maximum quantity that cannot be substantially exceeded regardless of the number of attempts by a user to re-use the microstructure apparatus. Some of the microstructures are designed with very close-packed microelements, which in some cases have flexible substrates.

Compositions and methods for enhancing repair of damaged DNA in skin cells. Topical compositions comprising at least one agent that upregulates circadian gene expression in skin cells and at least one non-circadian agent that delays mitosis in skin cells. Preferably, such compositions comprise one or more keratinocyte clock and per1 gene activators, along with SIRT1 or one or more sirt1 activators. More preferably, the sirt1 activator is a synergistic combination of specific peptidic sirt1 activators and resveratrol. Preferably, such compositions are easy to use, efficacious, cosmetically acceptable, chemically, thermodynamically and light stable, safe for topical use, have little or no side effects, and commercially feasible in a personal care marketplace.

A microdermabrasion device is disclosed for removing cells from a patient's skin. The device includes a partial vacuum channel for drawing skin into intimate contact with an abrasive surface and drawing away removed skin cells.

Methods and pharmaceutical compositions for inducing or accelerating a healing process of a damaged skin or skin wound, comprise modulating expression and / or activity of at least two PKC isoforms in skin cells colonizing the damaged skin or skin wound area.

Topical use of teprenone in a cosmetic or dermopharmaceutical composition as an active preventing and / or limiting the skin cells sénescence and / or protecting the general state of the skin.

The invention discloses a double-layer membranous tissue repair material and a preparation method thereof, wherein, a cell-free membranous biological derivative material is used as a surface layer, and a fibroblast is compounded in the interior of a biological support material to form a substrate, and then the surface layer and the substrate are combined in a chimeric way to form the double-layer membranous tissue repair material; a compact surface layer structure can effectively reduce the loss of water, electrolytes and protein from surface of wound, avoid the invading and the reproduction of bacteria to the impaired surface of wound as well as prevent the infection of the surface of wound, thus being beneficial to epitheliosis and epithelial growth; the substrate can directly repair the surface of wound, promote the ingrowth of cells around the surface of wound and the angiogenesis, induce the differentiation from stem cells to skin cells and quicken wound healing; compared with the existing products, the tissue repair material has the advantages of being capable of promoting the regeneration of skin, improving the elasticity, the flexibility and the mechanical abrasion resistance of skin after the surface of wound is healed, reducing hyperplasia of scar tissues, controlling the contracture, having excellent biocompatibility, increasing the success rate of transplant and improving the quality of healing; the invention has wide material resources and simple production method; the double-layer membranous tissue repair material prepared is applicable to the clinical treatment of skin defect caused by inflammation, ulcer, thermal burns, iatrogenicity and the like.

A device, a system employing the device, and method of performing skin treatment are provided for skin treatment. The device includes a vacuum head base defining a chamber therein and having a substantially smooth treatment tip attached and extending from an end thereof or integral therewith. The tip has at least one central opening that is open to the chamber, and is adapted to contact the skin and traverse the skin in a substantially nonabrasive manner. A vacuum access opening is provided through a side wall of the vacuum head base and adapted to connect with a source of vacuum. A tissue stop member is located within the chamber. It may have an abrasive surface for exfoliating skin cells, or a smoother surface for traversing the skin without substantial abrasion.

The invention includes devices and methods for obtaining samples of blood or other bodily fluids with reduced levels of contamination. Fluid obtained from a subject may be contaminated by skin cells, bacteria, fungi, viruses, phages, their respective RNA, DNA, and / or other undesirable molecules, or disinfectants. A first amount of fluid is injected from the subject through an distal needle and a proximal needle penetrates a first portion of a device having a sequestration chamber with sub-atmospheric pressure therein. A first portion of the fluid, containing contaminants, is deposited into the sequestration chamber. The proximal needle is then moved through a second portion of the sequestration chamber and into a collection container. Because contaminants are removed from the sample, analysis and diagnosis of a subject's condition becomes more reliable and accurate. Additional devices and methods can be used to obtain relatively uncontaminated samples from cell culturing vessels.

The invention discloses a cosmetic composition for caring and improving aged or nutrient-deficient skin or skin subjected to environmental damage. The composition comprises nanogold, high-energy source and / or peptides for skin cell metabolism, and one or more antioxidants. The components have favorable coordinating actions, and can improve the skin in the aspects of visual appearance, physiological functions, clinical characteristics and biophysical features.

The invention is directed compositions containing growth agents synthesized from cultured cells from skin. Skin cells such as keratinocytes and dermal fibroblasts are cultured in vitro in cell medium and in the course of culture the cultured cells synthesize and secrete agents into the cell medium. The medium containing agents are collected and incorporated into pharmaceutical or cosmetic preparations to treat an individual. The preparation is applied and has a rejuvenating effect on the cells and tissue.

Methods and devices are disclosed for collecting fingerprint and genetic information from an individual during a single collection session. A skin site is illuminated by direct imaging of the skin site using light reflected from the illuminated skin site. A cell of the individual, such as a skin cell, is retrieved from the collection surface.

Bacterial agents for preparing compositions which are for cosmetic, pharmaceutical or veterinary use and which are intended to stabilize and / or regulate the cutaneous ecosystem of mammals. These bacterial agents are extracts of a bacterium, or a bacterium and are selected for their adhesion to skin cells and anti-adhesion to pathogens of the cutaneous system. The invention also relates to compositions containing such agents.

A laminar skin-bone fixation transcutaneous implant adapted for implantation in a residual limb of an amputee comprising a biocompatible bone implant post having a first segment adapted for bone implantation, a transcutaneous segment attached to one or more biocompatible porous layers adapted for vascularization and stable sealable ingrowth by skin cells, and a third segment adapted for adapted for attachment to a prosthesis. The implant may include an uppermost biocompatible non-porous elastomer layer having a multiplicity of perforations. Methods for use of the implant and an article of manufacture for its packaging are also taught.

To provide an emulsifier for cosmetic use which not only has improved emulsifying power and feel during use, but wherein the emulsifier itself has a skin cell growth-promoting property. An emulsifier for cosmetic use comprising an aqueous solution of silk protein composed mainly of amorphous silk fibroin, wherein the aqueous solution of silk protein composed mainly of amorphous silk fibroin is an aqueous solution of silk protein obtained by dissolving unscoured, partially scoured or scoured spun silkworm fibers (cocoon filaments) with a neutral salt and then dialyzing the solution.

The present invention proposes formative agent of protein complex, in which a polyphenol is useful component, and the agent is useful as gene complex, cell adhesion inhibitor or immune tolerogen. The polyphenol of forming the agent is selected from catechin group consisting of epigallocatechin-gallate, tannic acids, or proanto-dianisidine, a protein of the protein complex is selected from proteins consisting of animal proteins composed of polypeptide chain of peptide-combined amino acids, vegetative proteins, nucleus proteins, glycogen proteins, lipo-proteins and metal proteins, the gene complex comprises by compositing genes by polyphenol catechins in order to introduce genes to cells of animals or human bodies, a cell composed of the cell adhesion inhibitor is selected from cells consisting of an animal cell including a stem cell, skin cell, mucosa cell, hepatocyte, islet cell, neural cell, cartilage cell, endothelial cell, epidermal cell, osteocyte or muscle cell isolated from human or animal organism, or sperm, ovum or fertilized egg of domestic animals or fishes and a tissue or an organ for transplantation of the immune tolerogen is selected from the tissue or the organ consisting of skin, blood vessel, cornea, kidney, heart, liver, umbilical cord, bowels, nerve, lung, placenta or pancreas.

Dermal fibroblasts permanently loose their ability to synthesize elastin, the major component of elastic fibers, shortly after puberty. This progressive loss of elastic fibers cannot be replaced, resulting in the physical signs of aging. The present invention provides methods and compositions containing the polyphenols ellagic acid and / or tannic acid for protection against degradation of cutaneous elastic fibers by the elastolytic enzymes. The use of ellagic acid and / or tannic acid increased the overall deposition of elastic fibers in healthy and damaged skin cells. The protection of both intra-tropoelastin and extra-cellular mature elastic fibers from proteolytic enzymes by ellagic acid and tannic acid caused an increase in the net deposition of elastic fibers. Therefore, embodiments of the present invention provide methods and composition for the treatment of skin and prevention and treatment of degradation of dermal elastic fibers.

The present invention provides systems, apparatus and methods for removing the outer layer, or stratum corneum, of a patient's skin. In one aspect of the invention, a method includes positioning an active electrode adjacent to or near a target site on a patient's outer skin, and applying a sufficient high frequency voltage to the active electrode to remove the stratum corneum without removing the entire epidermis layer. In this manner, the present invention removes dead and / or damaged skin cells on the surface of the skin which improves the overall appearance of the skin. In addition, this process helps to stimulate the bodies own rejuvenation process. In some embodiments, this rejuvenation process occurs by the actual removal of the stratum corneum, which accelerates the regrowth of new cell layers in the skin. In other embodiments, thermal energy is applied to the underlying epidermis and / or dermis to stimulate the growth of new collagen. In both of these embodiments, the skin appears healthier and, in some cases, small wrinkles are removed or reduced.

An apparatus and method for the production of substitute skin that advantageously reduces the amount of donor dermal cells needed from non-wound areas of a patient having a wound to be auto-grafted is reduced by using all of the harvested skin cells. A 3D printer is used to construct a wound graft product from the harvested skin cells without wasting any of the harvested skin cells. In a case of an irregularly shaped wound, wastage of harvested skin associated with trimming is avoided.

The invention provides a beauty and skincare enzyme liquid and an application thereof. The beauty and skincare enzyme liquid is prepared from the following raw materials in parts by weight: 1-10 parts of malt, 5-10 parts of yeast and 0.1-3 parts of effective raw materials, wherein the effective raw materials are selected from 4-10 of the following components: ginseng, peach kernel, apricot kernel, poria cocos, coix seed, wolfberry fruit, licorice root, scutellaria baicalensis root, puerarin, rhodiola rosea root, bletilla striata root, burdock root, rose, dandelion, tea leaf, lophatherum gracile, centella leaf, chrysanthemum, gardenia, purslane, scabish, hop and herba leonuri. An enzyme mask essence liquid containing the beauty and skincare enzyme liquid is capable of helping activation of skin cells, promoting metabolism, effectively repairing aged skin, improving the antioxidant ability, increasing the moisture content of the skin and locking water and moisturizing in a long-acting manner, and plays a nourishing role when moisturizing, so that the skin is smooth and elastic.

The invention relates to the cosmetic technology field, and especially relates to a cosmetic or skin care product preparation rich in growth factors and a preparation method therefor. A cosmetic or skin care product preparation rich in growth factors and composed of main ingredients: cell growth factors, micromolecule polypeptides, water, grease, surfactants, humectants, anti-oxidants and preservatives and a preparation method are provided. Through mutual cooperation of ingredients, the composition preparation can accelerate metabolism of skin cells, restore fractured shallow epidermal layer fibrocytes, has protruding rapid restoration function to skin wound surfaces, and has a plurality of functions of whitening, wrinkle removing, calmness, anti-allergy, skin smoothing, anti-wrinkle, brightening, refreshing, anti-aging, anti-radiation, stain prevention and reduction and the like.