摘要:
A method for reducing or preventing the effects of inflammation arising from injured tissue, which method comprises the steps of: a. bringing the injured tissue, or pre-injured tissue, into contact with a photosensitizing agent capable of penetrating into the tissue, resulting in the desired degree of biodistribution in less than one hour; and b. exposing the tissue thus contacted to light having a wavelength absorbed by the photosensitizing agent for a time sufficient to reduce or prevent inflammation in the exposed tissue, but not so long as to cause necrosis or erythema of the exposed tissue, or a pharmaceutical composition or an article for reducing or preventing the effects of inflammation arising from injured tissue. The composition comprises: a. from about 1 &mgr;/mL to about 2 mg/mL of a photosensitizing agent capable of penetrating into the injured tissue, or pre-injured tissue, resulting in the desired degree of biodistribution less than one hour; and b. a pharmaceutically acceptable carrier. The article comprises: a. a photosensitizing agent capable of penetrating into the injured tissue, or pre-injured tissue, resulting in the desired degree of biodistribution in less than one hour, and b. an absorbent applicator.
摘要:
Photodynamic therapy to prevent secondary cataracts is effected using photosensitizers such as green porphyrins as photoactive agents to destroy remnant lens epithelial cells.
摘要:
This invention relates generally to the field of pharmacotherapeutics and the use of photodynamic therapy (“PDT”). In particular, the invention provides a method for reducing or preventing the effects of inflammation arising from normal dose photodynamic therapy (PDT), which method comprises exposing a target tissue in a subject that has been treated with normal dose PDT treatment to low dose light having a wavelength absorbed by a photosensitizing agent used in said normal dose PDT treatment for a time sufficient to reduce or prevent the effects of inflammation arising from said normal dose PDT treatment. The method is particularly useful in reducing or preventing the effects of inflammation arising from normal dose PDT treatment of ocular tissues.
摘要:
A method of administering photodynamic therapy begins with administering to an animal an effective amount of a photosensitizing agent which is less than about one half of the usual clinical dose for the photosensitizing agent. Then, following a post injection interval which is less about one quarter of the usual post injection interval, an effective dose of light which is less than about one half of the usual clinical dose of light used in conjunction with the photosensitizing agent is administered to the animal.
摘要:
Green porphyrins (Gp), compounds important in photodynamic therapy, have been associated with lipocomplexes to reduce the required amount of photosensitizer through higher effective absorption and increased specificity. BPDs, especially in conjunction with the HDL fraction of plasma lipoproteins, has been shown to be particularly effective in this context. Pharmaceutical compositions in which these combinations are the active ingredients for use in diagnosis and treatment of tumors are also disclosed.
摘要:
A method for reducing or preventing the effects of inflammation arising from injured tissue, which method comprises the steps of: a. bringing the injured tissue, or pre-injured tissue, into contact with a photosensitizing agent capable of penetrating into the tissue, resulting in the desired degree of biodistribution in less than one hour; and b. exposing the tissue thus contacted to light having a wavelength absorbed by the photosensitizing agent for a time sufficient to reduce or prevent inflammation in the exposed tissue, but not so long as to cause necrosis or erythema of the exposed tissue, or a pharmaceutical composition or an article for reducing or preventing the effects of inflammation arising from injured tissue. The composition comprises: a. from about 1 &mgr;g/mL to about 2 mg/mL of a photosensitizing agent capable of penetrating into the injured tissue, or pre-injured tissue, resulting in the desired degree of biodistribution less than one hour; and b. a pharmaceutically acceptable carrier. The article comprises: a. a photosensitizing agent capable of penetrating into the injured tissue, or pre-injured tissue, resulting in the desired degree of biodistribution in less than one hour; and b. an absorbent applicator.
摘要:
Photodynamic therapy to prevent secondary cataracts is effected using photosensitizers such as green porphyrins as photoactive agents to destroy remnant lens epithelial cells.
摘要:
The invention provides a method to inhibit the formation of neovasculature while maintaining viability of the underlying tissue by subjecting a subject in which angiogenesis is to be inhibited to sublethal photodynamic therapy. The invention also provides a model for assessing sublethal PDT protocols to inhibit angiogenesis in particular target tissues.
摘要:
A method of administering photodynamic therapy begins with administering to an animal an effective amount of a photosensitizing agent which is less than about one half of the usual clinical dose for the photosensitizing agent. Then, following a post injection interval which is less about one quarter of the usual post injection interval, an effective dose of light which is less than about one half of the usual clinical dose of light used in conjunction with the photosensitizing agent is administered to the animal.
摘要:
Photodynamic therapy (PDT) is used to stimulate and/or restore hair growth in areas of hair loss. Methods and compositions relating to PDT treatment for alopecia are disclosed. In light of PDT use to remove unwanted hair by inactivating or destroying hair follicles or destroying the tissue feeding the hair follicles, such methods and compositions relate to a surprising and unexpected discovery. PDT permits a means to treat conditions relating to hair loss such as androgenic alopecia, alopecia areata and drug-induced alopecia.