Ultraviolet Therapy
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.
Spectrophotometry, Ultraviolet
Radiation Effects
PUVA Therapy
Erythema
Sunscreening Agents
Microscopy, Ultraviolet
HIV associated eosinophilic folliculitis--differential diagnosis and management. (1/159)
Eosinophilic folliculitis (EF) is a chronic, intensely pruritic condition of unknown pathogenesis that causes marked morbidity in those HIV patients whom it affects. There is a wide differential diagnosis of itchy skin conditions in HIV which are amenable to different treatments. It is therefore essential to take a biopsy of each suspected case and examine multiple sections of the biopsy to confirm or refute a diagnosis of EF. Treatment of EF can be difficult but we hope that by suggesting a rational approach to this and considering possible therapeutic options more patients may be helped with this troublesome dermatosis. (+info)UVA-1 cold light treatment of SLE: a double blind, placebo controlled crossover trial. (2/159)
OBJECTIVE: Treatment of patients with systemic lupus erythematosus (SLE) often implies strong drugs with possibly serious side effects. Thus there is a need for new immunosuppressive treatments. Long wave ultraviolet A (UVA-1) cold light therapy is an anti-inflammatory, immunomodulatory treatment with a possible systemic effect and few side effects. In the current study low dose UVA-1 cold light treatment was tested to determine whether it reduces disease activity in SLE. METHODS: Eleven patients with SLE were treated with UVA-1 cold light treatment and a placebo light treatment in a double blind, placebo controlled, crossover study. In two consecutive 12 week periods the patients were treated in the first three weeks with UVA-1 and placebo treatment or vice versa. The primary variables were the SLE Disease Activity Index (SLEDAI) and SLE Activity Measure (SLAM). RESULTS: The mean SLAM and SLEDAI showed a significant decrease of 30.4% (p=0.0005) and 37.9% (p=0.016) respectively after three weeks of UVA-1 and a non-significant decline of 9.3% (p=0.43) and 12.2% (p=0.54) respectively after three weeks of placebo treatment. In this small trial the difference in reduction of the disease activity indices during UVA-1 compared with during placebo treatment failed to reach the conventional border of significance (p=0.07). The total score of quality of life measure RAND-36 did not improve significantly, but the subscore for vitality did improve. CONCLUSION: Low dose UVA-1 cold light treatment was strongly suggestive of lowering disease activity in this double blind placebo controlled study, and no side effects occurred. (+info)Photoactivation of DNA thiobases as a potential novel therapeutic option. (3/159)
The thiopurines, 6-thioguanine and 6-mercaptopurine, are antileukemic agents that are incorporated into DNA following retrieval by the purine salvage pathway (see [1] for a review). Their toxicity requires active DNA mismatch repair (MMR), and thiopurine resistance is an acknowledged phenotype of MMR-defective cells [2, 3]. In addition to these direct cytotoxic effects, DNA thiobases have distinctive photochemical properties [4], the therapeutic potential of which has not been extensively evaluated. We report here that the thiopyrimidine nucleoside 4-thiothymidine is incorporated into DNA. It does not induce MMR-related toxicity, but it interacts synergistically with UVA light and dramatically sensitizes cultured human cells to very low, nonlethal UVA doses. 4-thiothymidine induced UVA dose enhancements of around 100-fold in DNA repair-proficient cells. Nucleotide excision repair-defective xeroderma pigmentosum cells were sensitized up to 1000-fold, implicating bulky DNA photoproducts in the lethal effect. The synergistic action of thiothymidine plus UVA required thymidine kinase, indicating a selective toxicity toward rapidly proliferating cells. Cooperative UVA cytotoxicity is a general property of DNA thiobases, and 6-thioguanine and 4-thiodeoxyuridine were also UVA sensitizers. Thiobase/UVA treatment may offer a novel therapeutic approach for the clinical management of nonmalignant conditions like psoriasis or for superficial tumors that are accessible to phototherapy. (+info)Modulation of cathepsin G expression in severe atopic dermatitis following medium-dose UVA1 phototherapy. (4/159)
BACKGROUND: During the last decade, medium-dose UVA1 phototherapy (50 J/cm2) has achieved great value within the treatment of severe atopic dermatitis (AD). The purpose of our study was to investigate to what extent UVA1 irradiation is able to modulate the status of protease activity by the use of a monoclonal antibody labeling cathepsin G. METHODS: In order to further elucidate the mechanisms by which medium-dose UVA1 irradiation leads to an improvement of skin status in patients with AD, biopsy specimens from 15 patients before and after treatment were analyzed immunohistochemically for proteolytic activation. RESULTS: Compared to lesional skin of patients with AD before UVA1 irradiation, the number of cells positive for cathepsin G within the dermal infiltrate decreased significantly after treatment. The decrease of cathepsin G+ cells was closely linked to a substantial clinical improvement in skin condition. CONCLUSIONS: In summary, our findings demonstrated that medium-dose UVA1 irradiation leads to a modulation of the expression of cathepsin G in the dermal inflammatory infiltrate in patients with severe AD. Cathepsin G may attack laminin, proteoglycans, collagen I and insoluble fibronectin, to provoke proinflammatory events, to degrade the basement membrane, to destroy the tissue inhibitor of metalloproteinases and to increase the endothelial permeability. Therefore, its down-regulation by UVA1 phototherapy may induce the reduction of skin inflammation as well as improvement of the skin condition. (+info)Endovascular treatment using low-power ultraviolet laser for delayed vasospasm in the rabbit carotid artery model. (5/159)
BACKGROUND AND PURPOSE: We previously reported that pretreatment with external ultraviolet (UV) irradiation at 325 nm before blood exposure prevented the development of chronic vasospasm in rabbit common carotid arteries. The purpose of this study was to investigate the preventive effect of endovascular UV light on vasospasm after blood immersion by using the same animal model. METHODS: The right common carotid arteries in 63 rabbits were enclosed in silicon cuffs on day 0. Sheaths were empty or filled with clotted blood. Thirty minutes after the placement of the sheaths, either alone or with blood, the common carotid arteries were subjected to UV or visible light (442 nm) irradiation via an endovascular approach at a fluence rate of 0.17 W/cm(2). The animals were killed on day 2, 9, or 30. Digital subtraction angiography was performed on days 0 and 2 and at the end point to evaluate the degree of vasospasm. RESULTS: UV treatment significantly prevented the development of vasospasm on day 2. On days 9 and 30, there were no significant differences between UV-treated animals and control animals. The preventive effect reached an approximate plateau with an irradiation time of 10 s. No severe vascular injury, such as perforation, occurred in response to UV treatment during the observation period. UV light was significantly more effective than visible light in preventing vasospasm (P <.001). CONCLUSION: These results suggest that endovascular UV irradiation after blood exposure has a prophylactic effect on vasospasm and suggest a dependence on irradiation wavelength and duration of irradiation. (+info)Management of guttate and generalized psoriasis vulgaris: prospective randomized study. (6/159)
AIM: To assess the efficacy of betamethasone dipropionate 0.05% cream plus ultraviolet B (UVB) radiation with and without additional penicillin therapy in the treatment of guttate psoriasis, and to compare the efficacies of oral psoralen plus ultraviolet A (PUVA) therapy and systemic retinoids therapy for treatment of generalized psoriasis. METHODS: Sixty patients with guttate (n = 20) and generalized psoriasis vulgaris (n = 40) of various intensity and duration treated at the Department of Dermatology, Medical School in Skopje, from February 2000 to January 2002, were included in this prospective, open-label, randomized, parallel group study. The clinical features of the patients were quantified according to the mean psoriasis area and severity index (PASI) values. Student s t-test for paired samples and two independent samples were used in statistical analysis. RESULTS: The final PASI values were not significantly different for the patients receiving different treatments of guttate psoriasis or generalized psoriasis. The initial PASI values for guttate psoriasis patients treated with betamethasone dipropionate plus UVB with and without penicillin treatment (5.7 +/- 2.1 and 5.9 +/- 2.5, respectively) declined to 0.5 +/- 0.8 and 1.0 +/- 0.9, respectively, after the therapy. The initial PASI values in generalized psoriasis patients receiving PUVA dropped from 24.1 +/- 3.6 to 1.7 +/- 1.5 by the end of the therapy. Finally, pre-treatment PASI values in patients with generalized psoriasis receiving retinoids decreased from 24.6 +/- 3.5 to 0.9 +/- 1.1 after treatment. However, patients receiving systemic retinoids for generalized psoriasis had statistically higher incidence of side effects than patients receiving PUVA therapy (t = 6.458, df = 38, p < 0.001). CONCLUSION: Penicillin should be applied in addition to local corticosteroids with UVB in the treatment of guttate psoriasis, since the disease may be triggered by a streptococcal infection. In cases of generalized psoriasis vulgaris, PUVA therapy caused fewer side effects than did systemic retinoids. (+info)Trypanosoma cruzi inactivation in human platelet concentrates and plasma by a psoralen (amotosalen HCl) and long-wavelength UV. (7/159)
Trypanosoma cruzi, the protozoan pathogen that causes Chagas' disease, can be found in the blood of infected individuals for their entire life span. This presents a serious challenge in safeguarding blood products. Transmission of T. cruzi from blood products is a frequent occurrence in Latin America, where Chagas' disease is endemic. This study was designed to determine whether T. cruzi could be inactivated in human platelet concentrates and plasma by a photochemical treatment process with long-wavelength UV A light (UVA, 320 to 400 nm) plus the psoralen amotosalen HCl (Cerus Corporation). Units of platelet concentrates (300 ml) and plasma (300 ml) were intentionally contaminated with approximately 10(6) T. cruzi trypomastigotes, the T. cruzi form found in the bloodstream, per ml. The viability of T. cruzi after photochemical inactivation was determined by their ability to replicate in 3T3 fibroblasts. Controls, including treatment with 150 micro M amotosalen or 3 J/cm(2) UVA alone, did not lead to reduction of the viability of T. cruzi in plasma or platelet concentrates. However, treatment with 150 micro M amotosalen plus 3 J/cm(2) UVA inactivated T. cruzi to undetectable levels in plasma and platelet concentrates. This represented a >5.4-log reduction of T. cruzi in platelet concentrates and >5.0-log reduction of T. cruzi in plasma. We conclude that the amotosalen plus UVA photochemical inactivation technology is effective in inactivating high levels of protozoan pathogens, such as T. cruzi, in platelet concentrates and plasma, as has been previously shown for numerous viruses and bacteria. (+info)Altered decorin expression of systemic sclerosis by UVA1 (340-400 nm) phototherapy: immunohistochemical analysis of 3 cases. (8/159)
BACKGROUND: Ultraviolet A1 (340-400 nm, UVA1) phototherapy is highly effective in sclerotic lesions of systemic sclerosis (SSc). Histological evaluation of skin specimens obtained before and after UVA1 phototherapy revealed loosening of collagen bundles and the appearance of small collagen fibers. We have previously shown that UVA1 irradiation induced collagenase in vitro study by using SSc fibroblasts. The increased levels of mRNA and protein of decorin in SSc fibroblasts were reported. In this study, we focus on the lesional expression of small dermatan sulfate proteoglycan, decorin that has a role of binding to collagen and fibrillogenesis. CASE PRESENTATION: We employed immunohistochemical analysis of decorin before and after UVA1 phototherapy. The skin specimens from three patients who were effectively treated with UVA1 phototherapy were analysed. Monoclonal antibody 6B6 as the specific reactivity to decorin was used. The increased decorin was focally accumulated in the newly synthesized collagen fibers in the sclerotic lesion of SSc. After UVA1 phototherapy, decorin was decreased in upper to middle dermis, although decorin was slightly increased in papillary dermis. CONCLUSIONS: These results suggest that decreased and normalized levels of accumulated decorin may relate to the efficacy of sclerotic lesions in UVA1 phototherapy. (+info)Ultraviolet Therapy, also known as Phototherapy, is a medical treatment that uses artificially produced ultraviolet (UV) light to treat various skin conditions such as psoriasis, eczema, and vitiligo.
Ultraviolet (UV) therapy, also known as phototherapy, is a medical treatment that uses ultraviolet light to treat various skin conditions. The UV light can be delivered through natural sunlight or artificial sources, such as specialized lamps or lasers.
In medical settings, controlled doses of UV light are used to target specific areas of the skin. The most common type of UV therapy is narrowband UVB (NB-UVB) phototherapy, which uses a specific wavelength of UVB light to treat conditions such as psoriasis, eczema, vitiligo, and dermatitis.
The goal of UV therapy is to reduce inflammation, slow skin cell growth, and improve the overall appearance of the skin. It is important to note that while UV therapy can be effective in treating certain skin conditions, it also carries risks such as skin aging and an increased risk of skin cancer. Therefore, it should only be administered under the supervision of a qualified healthcare professional.
Ultraviolet rays are a part of the electromagnetic spectrum with wavelengths shorter than visible light, which can cause sunburn, skin damage, and eye damage, and are used in various medical applications such as disinfection and treatment of skin conditions.
According to the medical definition, ultraviolet (UV) rays are invisible radiations that fall in the range of the electromagnetic spectrum between 100-400 nanometers. UV rays are further divided into three categories: UVA (320-400 nm), UVB (280-320 nm), and UVC (100-280 nm).
UV rays have various sources, including the sun and artificial sources like tanning beds. Prolonged exposure to UV rays can cause damage to the skin, leading to premature aging, eye damage, and an increased risk of skin cancer. UVA rays penetrate deeper into the skin and are associated with skin aging, while UVB rays primarily affect the outer layer of the skin and are linked to sunburns and skin cancer. UVC rays are the most harmful but fortunately, they are absorbed by the Earth's atmosphere and do not reach the surface.
Healthcare professionals recommend limiting exposure to UV rays, wearing protective clothing, using broad-spectrum sunscreen with an SPF of at least 30, and avoiding tanning beds to reduce the risk of UV-related health problems.
Spectrophotometry, Ultraviolet (UV) is a technique that measures the intensity of ultraviolet light absorbed by a substance, which can be used to identify and quantify the concentration of specific components within a sample, based on their unique UV absorption patterns.
Spectrophotometry, Ultraviolet (UV-Vis) is a type of spectrophotometry that measures how much ultraviolet (UV) and visible light is absorbed or transmitted by a sample. It uses a device called a spectrophotometer to measure the intensity of light at different wavelengths as it passes through a sample. The resulting data can be used to determine the concentration of specific components within the sample, identify unknown substances, or evaluate the physical and chemical properties of materials.
UV-Vis spectroscopy is widely used in various fields such as chemistry, biology, pharmaceuticals, and environmental science. It can detect a wide range of substances including organic compounds, metal ions, proteins, nucleic acids, and dyes. The technique is non-destructive, meaning that the sample remains unchanged after the measurement.
In UV-Vis spectroscopy, the sample is placed in a cuvette or other container, and light from a source is directed through it. The light then passes through a monochromator, which separates it into its component wavelengths. The monochromatic light is then directed through the sample, and the intensity of the transmitted or absorbed light is measured by a detector.
The resulting absorption spectrum can provide information about the concentration and identity of the components in the sample. For example, if a compound has a known absorption maximum at a specific wavelength, its concentration can be determined by measuring the absorbance at that wavelength and comparing it to a standard curve.
Overall, UV-Vis spectrophotometry is a versatile and powerful analytical technique for quantitative and qualitative analysis of various samples in different fields.
Radiation effects refer to the damages and changes in biological tissues, cells, and genetic materials caused by exposure to different types and levels of ionizing radiation, which can lead to a range of short-term and long-term health impacts, depending on the dosage, duration, and frequency of exposure.
Radiation effects refer to the damages that occur in living tissues when exposed to ionizing radiation. These effects can be categorized into two types: deterministic and stochastic. Deterministic effects have a threshold dose below which the effect does not occur, and above which the severity of the effect increases with the dose. Examples include radiation-induced erythema, epilation, and organ damage. Stochastic effects, on the other hand, do not have a threshold dose, and the probability of the effect occurring increases with the dose. Examples include genetic mutations and cancer induction. The severity of the effect is not related to the dose in this case.
PUVA therapy is a type of photochemotherapy that involves the use of oral methoxsalen (a psoralen drug) followed by exposure to long-wave ultraviolet A (UVA) light, typically utilized in the treatment of skin conditions such as psoriasis and eczema.
PUVA therapy is a type of treatment that uses both medication and light to treat certain skin conditions, such as psoriasis, eczema, and cutaneous T-cell lymphoma. The name "PUVA" stands for Psoralen + UVA, which refers to the two main components of the therapy:
1. Psoralen: This is a medication that makes the skin more sensitive to light. It can be taken orally or applied directly to the skin in the form of a cream or bath.
2. UVA: This stands for Ultraviolet A, which is a type of light that is part of the natural sunlight spectrum. In PUVA therapy, the skin is exposed to a controlled dose of UVA light in a special booth or room.
When psoralen is introduced into the body, it absorbs into the skin and makes it more sensitive to UVA light. When the skin is then exposed to UVA light, it triggers a chemical reaction that slows down the growth of affected skin cells. This helps to reduce inflammation, scaling, and other symptoms associated with the skin condition being treated.
It's important to note that PUVA therapy can have side effects, including sunburn, itching, redness, and an increased risk of skin cancer over time. As such, it is typically used as a second-line treatment when other therapies have not been effective, and it is closely monitored by a healthcare professional to ensure its safe and effective use.
'Erythema' is a clinical term that refers to the reddening of the skin or mucous membranes, often as a result of increased blood flow due to congestion in the capillaries, and can be an indicator of various underlying conditions such as inflammation, infection, or irritation.
Erythema is a term used in medicine to describe redness of the skin, which occurs as a result of increased blood flow in the superficial capillaries. This redness can be caused by various factors such as inflammation, infection, trauma, or exposure to heat, cold, or ultraviolet radiation. In some cases, erythema may also be accompanied by other symptoms such as swelling, warmth, pain, or itching. It is a common finding in many medical conditions and can vary in severity from mild to severe.
Sunscreening agents are chemical or physical substances that absorb, reflect, or scatter UV radiation, protecting the skin from harmful effects such as sunburn, premature aging, and skin cancer development.
Sunscreening agents, also known as sunscreens or sunblocks, are substances that protect the skin from the harmful effects of ultraviolet (UV) radiation from the sun. They work by absorbing, reflecting, or scattering UV radiation, preventing it from reaching the skin and causing damage such as sunburn, premature aging, and skin cancer.
Sunscreening agents can be chemical or physical. Chemical sunscreens contain organic compounds that absorb UV radiation and convert it into heat, which is then released from the skin. Examples of chemical sunscreens include oxybenzone, avobenzone, octinoxate, and homosalate.
Physical sunscreens, on the other hand, contain inorganic compounds that reflect or scatter UV radiation away from the skin. The most common physical sunscreen agents are zinc oxide and titanium dioxide.
Sunscreening agents are usually formulated into creams, lotions, gels, sprays, or sticks and are applied to the skin before sun exposure. They should be reapplied every two hours or after swimming, sweating, or toweling off to ensure continued protection. It is recommended to use a broad-spectrum sunscreen with an SPF (Sun Protection Factor) of at least 30, which blocks both UVA and UVB radiation.
Microscopy, Ultraviolet (UV Microscopy) is a type of microscopic examination that uses ultraviolet light to visualize and analyze specimens, often employing fluorescence or refractive properties to reveal unique features, mainly used in forensics, biology, and material science research.
Ultraviolet microscopy (UV microscopy) is a type of microscopy that uses ultraviolet light to visualize specimens. In this technique, ultraviolet radiation is used as the illumination source, and a special objective lens and filter are used to detect the resulting fluorescence emitted by the specimen.
The sample is usually stained with a fluorescent dye that absorbs the ultraviolet light and re-emits it at a longer wavelength, which can then be detected by the microscope's detector system. This technique allows for the visualization of structures or components within the specimen that may not be visible using traditional brightfield microscopy.
UV microscopy is commonly used in biological research to study the structure and function of cells, tissues, and proteins. It can also be used in forensic science to analyze evidence such as fingerprints, fibers, and other trace materials. However, it's important to note that UV radiation can be harmful to living tissue, so special precautions must be taken when using this technique.
'Sunlight' is not typically medically defined, however it refers to the solar radiation emitted by the sun in the form of electromagnetic waves, including ultraviolet (UV) rays, visible light, and infrared radiation, which can have various medical effects, such as vitamin D production in the skin upon UV exposure, but also potential harm, including sunburn and skin cancer risk with excessive UV exposure.
I'm sorry for any confusion, but "sunlight" is not a term with a specific medical definition. However, sunlight does have various implications in the field of medicine. It is the light that comes from the sun, which is a star at the center of our solar system. Sunlight is essential for the production of vitamin D in humans, and it can also have effects on mood and sleep patterns due to its influence on circadian rhythms.
In a medical context, sunlight is often discussed in relation to its potential health benefits and risks. For instance, moderate sun exposure can help increase vitamin D levels, which are important for bone health, immune function, and other bodily processes. However, excessive sun exposure can lead to harmful effects, such as sunburn, premature skin aging, and an increased risk of skin cancer.
It's essential to balance the benefits and risks of sunlight exposure by practicing safe sun habits, such as wearing protective clothing, using a broad-spectrum sunscreen with an SPF of at least 30, seeking shade during peak sunlight hours, and avoiding intentional tanning.
In radiation medicine, Dose-Response Relationship refers to the correlation between the amount of radiation exposure (dose) and the biological response or adverse effect (effect), where a higher dose generally results in a greater response or effect, often following a predictable pattern or curve.
A dose-response relationship in radiation refers to the correlation between the amount of radiation exposure (dose) and the biological response or adverse health effects observed in exposed individuals. As the level of radiation dose increases, the severity and frequency of the adverse health effects also tend to increase. This relationship is crucial in understanding the risks associated with various levels of radiation exposure and helps inform radiation protection standards and guidelines.
The effects of ionizing radiation can be categorized into two types: deterministic and stochastic. Deterministic effects have a threshold dose below which no effect is observed, and above this threshold, the severity of the effect increases with higher doses. Examples include radiation-induced cataracts or radiation dermatitis. Stochastic effects, on the other hand, do not have a clear threshold and are based on probability; as the dose increases, so does the likelihood of the adverse health effect occurring, such as an increased risk of cancer.
Understanding the dose-response relationship in radiation exposure is essential for setting limits on occupational and public exposure to ionizing radiation, optimizing radiation protection practices, and developing effective medical countermeasures in case of radiation emergencies.
Ultraviolet light therapy
... or ultraviolet phototherapy is a treatment for psoriasis, atopic skin disorder, vitiligo and other ... It consists of irradiation of the skin with the UVA ultraviolet light, from a fluorescent bulb or LED lamps. Tanning beds are ... Black, R.J.; Gavin, A.T. (2005). "Photocarcinogenic risk of narrowband ultraviolet B (TL-01) phototherapy: early follow-up data ... Indoor tanning Light therapy Hearn, R.M.R.; Kerr, A.C.; Rahim, J.; Ferguson, R.S.; Dawe, R.S. (2008). "Incidence of skin ...
Professional Medical Film
... infrared and ultraviolet light treatment; massage; exercise; functional retraining; occupational therapy (9 min; color). PMF ... Occupational Therapy (Three parts) PMF 5116A (1949) - Time Out: Occupational Therapy in Tuberculosis; Usefulness of ... occupational therapy treatment; medical officer's responsibility for prescribing and guiding therapy; introduction to simple ... heat and ultraviolet; measurements of range of motion; overcoming a definite weakness or loss of function; heavy resistance ...
Electrotherapy
Electrotherapeutic terminology in physical therapy. American Physical Therapy Association. 2001. ISBN 978-1-887759-88-5. OCLC ... ISBN 978-0-691-05952-5. Licht, Sidney (1967). "History of Electrotherapy". Therapeutic electricity and ultraviolet radiation. ... The American Physical Therapy Association, a professional organization representing physical therapists, accepts the use of ... Aziz Z, Cullum N, Flemming K (2015). "Electromagnetic therapy for treating venous leg ulcers" (PDF). Cochrane Database of ...
Ultraviolet
Bhatia, Bhavnit K.; Bahr, Brooks A.; Murase, Jenny E. (2015). "Excimer laser therapy and narrowband ultraviolet B therapy for ... Biological effects of high-energy visible light Infrared Ultraviolet astronomy Ultraviolet catastrophe Ultraviolet index UV ... Ultraviolet lamps are also used as part of the analysis of some minerals and gems. In general, ultraviolet detectors use either ... Ultraviolet lasers can also be made by applying frequency conversion to lower-frequency lasers. Ultraviolet lasers have ...
Molecular lesion
"How does ultraviolet light kill cells?". Scientific American. Retrieved 2020-11-30. Woods, Derek; Turchi, John J. (2013-05-01 ... "Chemotherapy induced DNA damage response". Cancer Biology & Therapy. 14 (5): 379-389. doi:10.4161/cbt.23761. ISSN 1538-4047. ... and exogenous factors such as ionizing or ultraviolet radiation. Byproducts of oxidative respiration are the main source of ...
Photocarcinogen
Phototoxin Photodynamic therapy Singlet oxygen Bissonnette, Robert; Claveau, Joel; Gupta, Aditya K. (2006). "Ultraviolet a ... This drug is used in photodynamic therapy for many inflammatory skin conditions, where the drug is combined with skin exposure ...
Hospital-acquired infection
There have been a number of studies evaluating the use of no-touch cleaning systems particularly the use of ultraviolet C ... Justo, JA; Bookstaver, PB (2014). "Antibiotic lock therapy: review of technique and logistical challenges". Infection and Drug ... "Performance Feedback, Ultraviolet Cleaning Device, and Dedicated Housekeeping Team Significantly Improve Room Cleaning, Reduce ... An alternative treatment targeting localised infections is the use of irradiation by ultraviolet C. The methods used differ ...
Coal tar
It may be used in combination with ultraviolet light therapy. Coal tar may be used in two forms: crude coal tar (Latin: pix ... It may be used in combination with ultraviolet light therapy. Industrially it is a railroad tie preservative and used in the ...
Photosensitivity in humans
Sunlight, especially its ultraviolet radiation component, can cause increased or additional types of damage in predisposed ... Patients undergoing photodynamic therapy are at additional risk of adverse photosensitive reactions caused by compact ... One cause of cataracts is exposure to ultraviolet light. Provided the level of UV emission from lamps is within safe limits, ... Polymorphous light eruption is a condition affecting the skin thought to be caused by an adverse reaction to ultraviolet light ...
Photodynamic therapy
PUVA therapy uses psoralen as photosensitiser and UVA ultraviolet as light source, but this form of therapy is usually ... of the therapy and wrote the first white paper naming the therapy "Photodynamic Therapy" (PDT) with early clinical argon dye ... "Differential effects of 5-aminolaevulinic acid photodynamic therapy and psoralen + ultraviolet a therapy on p53 phosphorylation ... photodynamic therapy and intensity modulated radiation therapy for the treatment of malignant pleural mesothelioma". Cancer ...
Majocchi's disease
Some of these treatments include the application of topical steroids and ultraviolet therapy. The use of narrowband UVB and ...
Ypsilanti State Hospital
Physiotherapy is a treatment that exposes the patient to ultra-violet and infrared lights. Some of these treatments included ... The Ypsilanti State Hospital employed many different types of therapy and treatments for their patients. Within the hospitals ... In 1937 the Ypsilanti State Hospital was introduced to several different shock therapies, including electric shock. In 1959 ... ultraviolet radiations, electric light cabinet baths, bubble baths, hot fomentations, colloidal baths, and surgical dressings. ...
Goeckerman therapy
The patient is then exposed to broad-band ultraviolet B (UVB) radiation, although narrow-band UVB may also be used. Laboratory ... Lee, E.; Koo, J. (12 July 2009). "Modern modified 'ultra' Goeckerman therapy: A PASI assessment of a very effective therapy for ... CS1: long volume value, Articles with short description, Short description matches Wikidata, Light therapy, Psoriasis, Therapy) ... Goeckerman therapy is a regimen for treatment of moderate to severe plaque psoriasis using a combination of crude coal tar and ...
Bullous pemphigoid
Potential precipitating events that have been reported include exposure to ultraviolet light and radiation therapy. Onset of ... "Bullous Pemphigoid." Quick Answers to Medical Diagnosis and Therapy". Retrieved 2012-07-21. Kirtschig G, Middleton P, Bennett C ... therapy and somewhat safer. However, in difficult-to-manage or widespread cases, systemic prednisone and powerful steroid-free ...
Blood irradiation therapy
Light therapy Photodynamic therapy Photopheresis Hamblin MR (2017). "Ultraviolet Irradiation of Blood: "The Cure That Time ... Blood irradiation therapy is an alternative medical procedure in which the blood is exposed to low-level light (often laser ... Blood irradiation therapy is highly controversial, and has fallen from mainstream use since its heyday in the 1940s and 1950s. ... Transcutaneous therapy applies laser light on unbroken skin in areas with large numbers of blood vessels (such as the forearm ...
Dermatophyte
Should there be an outbreak or if a patient is not responding well to therapy, sometimes a fungal culture is indicated. A ... Additionally, a Wood's lamp examination (ultraviolet light) may be used to diagnose specific dermatophytes that fluoresce. ... Degreef, H. J.; DeDoncker, P. R. (September 1994). "Current therapy of dermatophytosis". Journal of the American Academy of ... fungal culture is also used when long-term oral therapy is being considered. Fungal culture medium can be used for positive ...
Basal-cell carcinoma
Risk factors include exposure to ultraviolet light, having lighter skin, radiation therapy, long-term exposure to arsenic and ... This therapy is also used in other skin cancer types. The 2008 study reported that PDT was a good treatment option for primary ... Photodynamic therapy (PDT) is a new modality for treatment of basal-cell carcinoma, which is administered by application of ... Radiation therapy may be contraindicated for treatment of nevoid basal-cell carcinoma syndrome. A 2008 study reported that ...
Psoriatic arthritis
Photochemotherapy with methoxy psoralen and long-wave ultraviolet light (PUVA therapy) are used for severe skin lesions. ... A review found tentative evidence of benefit of low level laser therapy and concluded that it could be considered for relief of ... "Low level laser therapy (Classes I, II and III) for treating rheumatoid arthritis". The Cochrane Database of Systematic Reviews ...
Neonatal jaundice
2533 The phototherapy involved is not ultraviolet light therapy but rather a specific frequency of blue light. The light can be ... Massage therapy could be useful in addition to phototherapy in order to reduce the phototherapy duration. However, it does not ... Abdellatif, Mohammed (February 2020). "Massage therapy for the treatment of neonatal jaundice: A systematic review and network ...
Psoriasis
Narrowband UVB therapy has been demonstrated to have similar efficacy to psoralen and ultraviolet A phototherapy (PUVA). A 2013 ... "Narrow-band ultraviolet B phototherapy versus broad-band ultraviolet B or psoralen-ultraviolet A photochemotherapy for ... as well as psoralen and ultraviolet A (PUVA) therapy, can reduce the number of dendritic cells and favors a Th2 cell cytokine ... thought to be attributed to systemic therapy, particularly methotrexate. People treated with long term systemic therapy for ...
Marian Johnson-Thompson
She has also investigated the impact of ultraviolet (UV) laser therapy on the stability of viral DNA. She has studied the ...
Mycosis fungoides
The most commonly recommended first-line treatment for mycosis fungoides is psoralen plus ultraviolet A (PUVA therapy). PUVA is ... Suggested treatments include light therapy, ultraviolet light (mainly NB-UVB 312 nm), topical steroids, topical and systemic ... systemic therapies (e.g. retinoids, rexinoids), and biological therapies (e.g. interferons). Treatments are often used in ... Due to the possible adverse effects of treatment options in early disease it is recommended to begin therapy with topical and ...
As Everything Unfolds
In January 2023, the band announced their second album, Ultraviolet, would be released on 21 April. The group's sound ... "As Everything Unfolds: Post-hardcore's breakout stars on overcoming demons, new perspectives, and music as therapy". Kerrang!. ... "AS EVERYTHING UNFOLDS Announce New Album Ultraviolet; Title Track Music Video Posted". Brave Words & Bloody Knuckles. 19 ... and music as therapy". Kerrang. 7 April 2021. Heath, Michael (24 September 2018). "Introducing: As Everything Unfolds". Dead ...
Finger tip unit
... therapy utilization and severity of atopic eczema before and after explanation and demonstration of topical therapies by a ... What can be done to reduce personal ultraviolet radiation exposure? Chapter 13 in: Prevention of skin cancer. Editors Hill DJ, ... USA guidelines of care for the management of psoriasis with topical therapies include guidance of amount to be used based on ... A practical guide to topical therapy in children. Br J Dermatol 1998; 138: 293-296. Futamura M1, Ito K, Otsuji K, Hirayama M, ...
Alefacept
Scheinfeld N (2005). "Therapy-resistant psoriasis treated with alefacept and subsequent narrow band ultraviolet B phototherapy ... CD4+ cell counts should be obtained before initiation of therapy and during the 12-week course of therapy in intervals of 2 ... Therapy should be conducted under the supervision of a physician experienced in the use of immunosuppressant agents. Due to ... It is not known if some or all of these manifestations are attributable to alefacept-therapy, but it is recommended to ...
History of radiation therapy
Besnier suggested the use of radium for therapy along the same purposes as x-rays and ultraviolet rays. Becquerel for this ... and optical therapy), and systemic therapy (i.e. radiopharmaceutical therapy, such as radioligand therapy and unsealed source ... Intraoperative radiation therapy or IORT is a special type of radiation therapy that is delivered immediately after surgical ... "Radiation therapy" defined as the utilization of electromagnetic or particle radiation in medical therapy has 3 main branches, ...
City of Hope National Medical Center
Research conducted at the institute has contributed to discoveries in the areas of recombinant DNA technology, gene therapy and ... National Institute of Environmental Health Sciences grant to study ultraviolet light damage and its effect on mutagenesis - $2 ... focus on development and manufacture of stem cell therapies-five-year, $8.6 million. Selvam, Ashok (February 21, 2013). "Stone ... 32.5 million in grants from California Institute for Regenerative Medicine for novel therapy for brain tumors and development ...
Ergosterol
In human nutrition, ergosterol is a provitamin form of vitamin D2; exposure to ultraviolet (UV) light causes a chemical ... Expert Review of Anti-Infective Therapy. 11 (4): 347-358. doi:10.1586/eri.13.17. PMID 23566144. S2CID 24585556. Koyyalamudi SR ... "Vitamin D2 formation and bioavailability from Agaricus bisporus button mushrooms treated with ultraviolet irradiation". Journal ...
Light therapy
... and eczema with ultraviolet light is called ultraviolet light therapy. Exposure to light to wavelengths of 290-300 nanometers ... Blood irradiation therapy Chromotherapy Crib A'Glow Free-running sleep Low level laser therapy Photodynamic therapy Sun tanning ... Light therapy treatments for the skin usually involve exposure to ultraviolet light. The exposures can be to a small area of ... light box therapy and colored light therapy - are not supported by evidence. Photodynamic therapy (often with red light) is ...
Dora Colebrook
At that time, light therapy from white or ultraviolet light, was becoming increasing popular for an increasing range of ... she was again unable to show a clear benefit of light therapy. Her initial findings about light therapy were controversial ... also did not demonstrate a beneficial effect of light therapy. The study compared three treatments namely with UV light therapy ... She was still involved in controversy over the efficacy of light therapy into the late 1940s. Colebrook worked with her brother ...
Ultraviolet light therapy - Wikipedia
Ultraviolet light therapy or ultraviolet phototherapy is a treatment for psoriasis, atopic skin disorder, vitiligo and other ... It consists of irradiation of the skin with the UVA ultraviolet light, from a fluorescent bulb or LED lamps. Tanning beds are ... Black, R.J.; Gavin, A.T. (2005). "Photocarcinogenic risk of narrowband ultraviolet B (TL-01) phototherapy: early follow-up data ... Indoor tanning Light therapy Hearn, R.M.R.; Kerr, A.C.; Rahim, J.; Ferguson, R.S.; Dawe, R.S. (2008). "Incidence of skin ...
atopic dermatitis ultraviolet light therapy Archives - Eczema Free
Ecosvet home therapy device for ultraviolet blood irradiation (UVBI) : buy Ecosvet home therapy device for ultraviolet blood...
Best Ecosvet home therapy device for ultraviolet blood irradiation (UVBI) on Kalinka-store.com. Low prices. Free international ... Ecosvet home therapy device for ultraviolet blood irradiation (UVBI) * Scenar therapy devices probes ULM clothes * Scenar ... Ecosvet home therapy device for ultraviolet blood irradiation (UVBI) *Scenar therapy devices probes ULM clothes * Scenar ... Ecosvet 1 Home Device For Ultraviolet Blood Irradiation (UVBI) therapy immune support against viral infection. $590.00$620.00 ...
Cytotoxic and genotoxic effects of acitretin, alone or in combination with psoralen-ultraviolet A or narrow-band ultraviolet B...
... alone or in combination with psoralen-ultraviolet A or narrow-band ultraviolet B-therapy in psoriatic patients ... alone or in combination with psoralen-ultraviolet A or narrow-band ultraviolet B-therapy in psoriatic patients. ... alone or in combination with psoralen-ultraviolet A or narrow-band ultraviolet B-therapy in psoriatic patients ...
Efficacy of targeted narrowband ultraviolet B therapy in vitiligo - Daavlin
Heterologous Type I Collagen as an Add-on Therapy to Narrowband Ultraviolet B for the Treatment of Vitiligo: A Pilot Study |...
Heterologous Type I Collagen as an Add-on Therapy to Narrowband Ultraviolet B for the Treatment of Vitiligo: A Pilot Study. ... Keywords: Vitiligo, heterologous type I collagen, narrowband ultraviolet B, phototherapy, collagen, ultraviolet ... We sought to evaluate the possible efficacy of heterologous type I collagen as an add-on therapy to narrowband ultraviolet B ( ... The initial results in this exploratory use of HTIC as an add-on therapy to NB-UVB for the treatment of vitiligo are ...
Tom Lowe - The Many Health Benefits Ultraviolet Blood Irradiation & Ozone Therapy On The Body - Extreme Health Radio
Ultraviolet blood irradiation goes by other names like biophotonic therapy, UBI, ultraviolet light therapy, ultraviolet ... Why dont you hear about ultraviolet blood irradiation therapy? It cuts into the profits of big pharma of course. Why use UBI ... Tom Lowe - The Many Health Benefits Ultraviolet Blood Irradiation & Ozone Therapy On The Body. * July 17, 2023 ... Tom Lowe joined us today to discuss his work with ultraviolet blood irradiation and ozone therapy for human health. ...
psoralen and ultraviolet A (PUVA) therapy - Siteman Cancer Center
PUVA therapy may increase the risk of getting skin cancer. Also called psoralen and ultraviolet A therapy.. ... PUVA therapy. (...THAYR-uh-pee) A type of photodynamic therapy used to treat skin conditions such as psoriasis, vitiligo, and ... Siteman Cancer Center at Barnes-Jewish Hospital and Washington University School of Medicine is expanding proton therapy for ... Immunity boosting treatment enhances CAR-T cell therapy for blood cancers. Advances in cellular immunotherapy that spur ...
Alopecia areata: MedlinePlus Medical Encyclopedia
Melanonychia: Background, Pathophysiology, Etiology
Ultraviolet and ionizing radiation enhance the growth of BCCs and trichoblastomas in patched heterozygous knockout mice |...
The Ptch mutant mice provide the first mouse model, to our knowledge, of ultraviolet and ionizing radiation-induced basal cell ... and that exposure to ultraviolet radiation or ionizing radiation results in an increase in the number and size of these tumors ... Risk of basal cell and squamous cell skin cancers after ionizing radiation therapy. J. Natl. Cancer Inst. 88, 1848-1852 (1996). ... Ultraviolet and ionizing radiation enhance the growth of BCCs and trichoblastomas in patched heterozygous knockout mice. * ...
Cirrhosis: Practice Essentials, Overview, Etiology
Gabapentin is an unreliable therapy. Patients with severe pruritus may require institution of ultraviolet light therapy or ... Furthermore, successful antiviral therapy reduces but does not eliminate the risk of HCC development. Antiviral therapies ... These therapies include percutaneous injection therapy with ethanol, radiofrequency and microwave thermal ablation, ... TIPS is the recommended rescue therapy in patients who experience recurrent hemorrhage despite the use of combination therapy ...
Cirrhosis: Practice Essentials, Overview, Etiology
Gabapentin is an unreliable therapy. Patients with severe pruritus may require institution of ultraviolet light therapy or ... Furthermore, successful antiviral therapy reduces but does not eliminate the risk of HCC development. Antiviral therapies ... These therapies include percutaneous injection therapy with ethanol, radiofrequency and microwave thermal ablation, ... TIPS is the recommended rescue therapy in patients who experience recurrent hemorrhage despite the use of combination therapy ...
Treatment of Pityriasis Rosea
Study uncovers role of ultraviolet radiation in development of rare leukemia in the skin
Can a vitamin transform natural killer cells into a cancer therapy? Scientists think the answer is yes. Sep 16, 2023 ... Study uncovers role of ultraviolet radiation in development of rare leukemia in the skin. by Dana-Farber Cancer Institute ... In a series of experiments, researchers found that when the normal counterparts of BPDCN cells are exposed to ultraviolet light ... "This may explain why so many BPDCN cells withstand ultraviolet radiation exposure in the skin, which gives them the opportunity ...
How Vitiligo Progresses: Your FAQs
Ultraviolet light is a therapy for vitiligo - but its a targeted therapy done with specialized equipment. Its only used on ... Ultraviolet light therapy doesnt mean sun exposure. Exposing yourself to the sun wont improve vitiligo, even though it seems ... Phototherapy: During phototherapy, your skin is exposed to ultraviolet light to help stimulate the production of skin pigment. ...
UV Phototherapy Lamp: The world's most advanced Ultra Violet therapy l
It is the ultraviolet part of the radiation produced by the sun that is used in phototherapy, in particular the Ultraviolet-A ( ... UV Phototherapy Lamp: The worlds most advanced Ultra Violet therapy lamp!. by DengZhiwei on August 19, 2020 ... uvb light therapy, uvb light therapy at home, uvb narrowband lamp, uvb narrowband light, Vitiligo ... Ultraviolet (UV) has wavelengths from about 380 nanometers to about 10 nm. The UV radiation may be divided into 3 regions:. * ...
National Ambulatory Medical Care Survey, 1997
For example, ultrasonic, ultraviolet, infrared, whirlpool, diathermy, cold and manipulative therapy.. All specific forms of ... Heat therapy Hydrotherapy Therapeutic exercises Back adjustment Occupational therapy Recreational therapy Speech therapy ... 4405.0 Respiratory therapy Includes: Inhalation therapy Asthma treatment. 4410.0 Psychotherapy Includes: Group therapy ... SPECIFIC TYPES OF THERAPY (4400-4499). 4400.0 Physical medicine and rehabilitation Includes: Physical therapy ...
Ultra-High Performance Flexible Ultraviolet Sensors for Use in Wearables - Tech Briefs
To enable the development of wearable devices that possess advanced ultraviolet (UV) detection functions, scientists have ... VR Therapy Aims to Help Those with Hoarding Disorder. Quiz: Green Design & Manufacturing. How Much Do You Know About ... Ultra-High Performance Flexible Ultraviolet Sensors for Use in Wearables. To enable the development of wearable devices that ... possess advanced ultraviolet (UV) detection functions, scientists have created a new type of light sensor that is both flexible ...
Who Is Not Suitable for Ultraviolet Light Therapy Machine Treatment? - APK Technology Co., Ltd.
Precautions for Using an Ultraviolet Light Therapy Machine * Who Is Not Suitable for Ultraviolet Light Therapy Machine ... UV light therapy device has no upper limit on the number of irradiations. It can still be used for relapses even if many light ... Detailed Guidelines on the Usage of UV Light Therapy Device * Introduction to the Technical Principle and Function of the Blood ... Number of UV light therapy device treatments. When patients undergo UV phototherapy, they are mostly concerned about related ...
Thyroiditis - Glossary Definition
Ultraviolette Launches International-spec F77 for European Markets at EICMA 2023; F99 Factory Racing Platform makes Global...
ShiraTronics Announces Groundbreaking Milestone: Worlds First Trial Phase Procedures for their Chronic Migraine Therapy System ... Ultraviolette F99 Factory Racing Platform Ultraviolettes plans extend beyond International-spec F77, with the world premiere ... International-Spec Ultraviolette F77. The F77 is first Indian two-wheeler with state-of-the-art battery technology and avionics ... Ultraviolette launched the F77 in Europe with deliveries starting in Q2 2024 with three distinctive variants - Shadow, Laser, ...
Effect of Latitude on Seasonality of Tuberculosis, Australia, 2002-2011 - Volume 18, Number 11-November 2012 - Emerging...
The ultraviolet rays are absorbed and are beneficial to the general health, even counterbalancing a deficiency in vitamins, to ... Before the introduction of antimycobacterial therapy, several therapeutic approaches for tuberculosis were attempted. One ... Australia with latitude lines, divided into north, central, and south regions according to latitude and ultraviolet (UV) ... Australia with latitude lines, divided into north, central, and south regions according to latitude and ultraviolet (UV) ...
Psoriatic arthritis rash: Pictures, symptoms, and treatment
Treatments for the rash include topical medications, light therapy, and oral and intravenous drugs. Learn more here. ... Light therapy. Also known as phototherapy, light therapy uses ultraviolet (UV) light to treat a persons skin. Light therapy ... Different types of light therapy are available, including:. *Ultraviolet B (UVB) therapy. UVB therapy requires a person to ... Doctors often prescribe light therapy in combination with some topical treatments.. Light therapy can be beneficial for people ...
3 ways to boost your vitamin D levels - WATE 6 On Your Side
Try an ultraviolet lamp. There may not be much sunlight in the fall and winter, but you can obtain artificial light as a ... When there are few sources of natural sunlight outside, UV light therapy can be a great option. ... It contains ultraviolet B fluorescent bulbs to give you indoor sunshine. It has a compact size for easy storage and weighs 14 ... The nutrient is also naturally produced when ultraviolet rays from the sunlight hit the skin, triggering vitamin D synthesis. ...
A Strategic Plan for the Elimination of Tuberculosis in
the United States
... ultraviolet light; and drug therapy of uninfected persons who are exposed to infection sources. Vaccination with BCG does not ... ultraviolet lights in high-risk areas of buildings, chemotherapy for disease, and directly observed therapy. Some of these ... INH preventive therapy reduces the risk of tuberculosis by more than 90% among persons who complete a full course of treatment ... Preventive therapy would be a much more efficient intervention for reducing tuberculosis morbidity if there were better methods ...
Liang Deng, MD, PhD - MSK Dermatologist
... therapy-induced skin toxicity, and skin manifestations of infections in immune-compromised individuals. ... In my laboratory, we are studying the interface between poxviruses and the immune system in order to develop better therapies ... therapy-induced skin toxicity, and skin manifestations of infections in immune-compromised individuals. ...
Cabtreo (adapalene/benzoyl peroxide/clindamycin topical) dosing, indications, interactions, adverse effects, and more
Step Therapy. Drugs that have step therapy associated with each prescription. This restriction typically requires that certain ... May increase sensitivity to ultraviolet light; avoid or minimize sun exposure (including use of tanning beds and sun lamps) ... Use with concomitant topical acne therapy has not been evaluated. Colitis *Diarrhea, bloody diarrhea, and colitis reported with ... Drugs that have restrictions other than prior authorization, quantity limits, and step therapy associated with each ...
Light Therapy | GreenMedInfo | Therapeutic Action | Natural Medicine
This topic has 18 study abstracts on Light Therapy indicating that it may have therapeutic value in the treatment of Herpes ... The ultraviolet irradiation of autologous blood and endolymphatic antibiotic therapy in treating pneumonia in patients with ... Therapeutic Actions : Exercise: Green , Horticultural Therapy (Gardening), Light Therapy, Sauna Therapy, Shinrin-yoku (taking ... Magnet Therapy , Music. Additional Keywords : Acupressure, Depression, light therapy, Magnet Therapy, music, Stroke: ...
Mice drinking goji berry juice (Lycium barbarum) are protected from UV radiation-induced skin damage via antioxidant pathways
