Ultraviolet Therapy
Mostrando 13-23 de 23 artigos, teses e dissertações.
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13. Diagnostico de neoplasias malignas atraves da ação fotodinamica do derivado de hematoporfirina (HpD) : desenvolvimento de modelo experimental local
In this study, we present experimental results on the detection of malignant tumors using photodynamic therapy with the use of a hematoporphyrin derivative activated by a light source with a wavelength of approximately 365nm. The results showed that the photosensitizer used presented greater retention on the malignant tissues when compared with normal tissue
Publicado em: 1992
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14. Psoriasis Therapy: A Current Perspective
Psoriasis is a common papulosquamous skin disease which frequently presents a therapeutic challenge to physicians. Topical therapy with steroids, coal tars and anthralin are effective when used properly for many patients. More severely affected patients may require phototherapy using coal tars and anthralin plus ultraviolet radiation. Systemic methotrexate a
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15. An Address ON THE VALUE OF ULTRA-VIOLET RAY THERAPY IN CHILDHOOD*
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16. Ability of Bacillus subtilis protoplasts to repair irradiated bacteriophage deoxyribonucleic acid via acquired and natural enzymatic systems.
A novel form of "enzyme therapy" was achieved by utilizing protoplasts of Bacillus subtilis. Photoreactivating enzyme of Escherichia coli was successfully inserted into the protoplasts of B. subtilis treated with polyethylene glycol. This enzyme was used to photoreactivate ultraviolet-damaged bacteriophage deoxyribonucleic acid (DNA). Furthermore, in polyeth
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17. Signature p53 mutation at DNA cross-linking sites in 8-methoxypsoralen and ultraviolet A (PUVA)-induced murine skin cancers.
A combination of psoralen and ultraviolet A radiation (PUVA) is widely used in the treatment of psoriasis. However, PUVA treatment increases the risk of developing skin cancer in psoriasis patients and induces skin cancer in mice. Since the DNA damage induced by PUVA is quite different from that induced by UV, we investigated whether PUVA-induced mouse skin
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18. Regression of Labrador keratopathy following cataract extraction.
Labrador keratopathy (LK) is an acquired corneal degeneration thought to be caused by chronic exposure to solar irradiation. Reports so far suggest that it is a progressive or at least a stationary condition. There are no detailed reports on recommended therapy. A prospective clinical study was conducted to show regression of LK following extracapsular catar
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19. Isolation and characterization of a polyene-resistant variant of Candida tropicalis.
An atypical variant of Candida tropicalis was recovered from multiple specimens from a patient who had been a recipient of a bone marrow transplant. This yeast variant showed atypical morphology on corn meal agar distinguishable from typical isolates of C. tropicalis by the production of clusters of blastospores. Isolates of the variant produced acid, but no
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20. Enzyme plus light therapy to repair DNA damage in ultraviolet-B-irradiated human skin
Ultraviolet-B (UVB) (290–320 nm) radiation-induced cyclobutane pyrimidine dimers within the DNA of epidermal cells are detrimental to human health by causing mutations and immunosuppressive effects that presumably contribute to photocarcinogenesis. Conventional photoprotection by sunscreens is exclusively prophylactic in nature and of no value once DNA dam
The National Academy of Sciences.
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21. Established immunity precludes adenovirus-mediated gene transfer in rat carotid arteries. Potential for immunosuppression and vector engineering to overcome barriers of immunity.
Preclinical arterial gene transfer studies with adenoviral vectors are typically performed in laboratory animals that lack immunity to adenovirus. However, human patients are likely to have prior exposures to adenovirus that might affect: (a) the success of arterial gene transfer; (b) the duration of recombinant gene expression; and (c) the likelihood of a d
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22. Cutaneous T-Cell Lymphoma in a Cardiac Transplant Recipient
Mycosis fungoides, an uncommon form of cutaneous T-cell lymphoma, arises in the skin and frequently progresses to generalized lymphadenopathy. Although the cause of cutaneous T-cell lymphoma is unknown, chronic immunosuppression may play a role. A few cases have been reported in renal transplant recipients; however, ours appears to be the 1st report of cutan
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23. The Tumor Suppressor p53 Can Both Stimulate and Inhibit Ultraviolet Light–induced Apoptosis
We have previously shown that the tumor suppressor p53 can play a protective role against UV-induced apoptosis in human fibroblasts. In the present study, we investigated whether the protective function of p53 expression is established before or after UV irradiation. Using a stable human cell line expressing a murine temperature-sensitive p53 in which p
The American Society for Cell Biology.