• Electronics and Telecommunications Trends
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• v.25 no.5
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• pp.59-71
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• 2010

피부질환 치료를 위한 광선요법은 태양광, 레이저, 형광등, UV 램프 등 다양한 광원을 이용하여 광이 피부 내에서 생화학적 반응을 촉진하는 원리를 이용하여 피부 조직의 선택적 재생 또는 파괴 등을 통해 손상된 피부를 치료하는 광 의료 기술이다. 최근 발전하고 있는 LED 광원 기술은 광선요법에서 시용되어온 광원을 대체할 수 있는 기술로 각광을 받고 있다. 이에 본 고에서는 광선요법과 관련된 기초 원리를 살펴보고, LED가 피부질환 치료용 광원으로 사용될 때 고려되어야 하는 임상적, 기술적 문제점과 다양한 피부질환 치료에 있어서 LED 광원의 역할에 대해 살펴 보았다. 아울러, 피부질환 치료용 LED 치료기 관련 국내외 연구 개발 동향과 기업들이 출시한 LED 치료기의 특성을 살펴보았다. LED 치료기 관련 표준화 동향과 국내외 지식재산권 현황을 살펴보았으며, 향후 LED 기반의 피부질환 치료기의 개발 방향을 모색하였다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.5
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• pp.3131-3138
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• 2015

At a dermatology during the skin care, photodynamic therapy(PDT) is carried after 5-aminolevulinic acid(ALA), light sensitive material, is applied. At a skin care shop, using drug is prohibited. Thus, the aim of this research was to see the effect of the acne skin by irradiating PDT to the skin without applying ALA. The research method was that 24 female undergraduates who had acne on their face at the level of mild or comedonal, and the participants were divided into four groups(group1: no treatment, group 2: 420 nm of blue visible light, group 3: 660 nm of red visible light and group 4: blue and red visible light). The participants of group 2, 3 and 4 were irradiated with visible light for 20 minutes per week for 6 weeks, and they were compared to group 1. As a result of the research, the number of erythema, sebum, papules and pustules of those who were irradiated with visible light decreased, and the pore size of those also decreased while the amount of moisture increased. If an skin care shop applies PDT to the existing acne skin care, that PDT will influence on the program of a skin care shop is expected.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.48 no.3
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• pp.245-254
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• 2022

In this study, we tried to investigate the efficacy of combined light therapy using low-power lasers at 655 nm and LEDs emitting wavelengths at 625 ± 5 nm and 850 ± 10 nm in hair loss and scalp. A total of 33 subjects were enrolled in this clinical trial. Each subject used the LLLT and LED device on the scalp for 10 min on a daily basis for 12 weeks. After 12 weeks of LLLT and LED device use, there were significant improvements in redness, elasticity, and hydration of the scalp. Additionally, hair luster and tensile strength were improved. A remarkable decrease in total shed hairs was observed in all subjects at 4, 8, and 12 weeks without any serious adverse event. Combined light therapy using LLLT and LEDs proved to be an effective treatment for reducing hair loss and improving scalp condition.

• 모자간호학회지
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• v.3 no.2
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• pp.95-101
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• 1993

The purpose of this study is to define the effect of radiation hours on the physiologic jaundice infants. Since there in no full explanation of the way of phototherapy. Data was collected from February, 1993 through August, 1993 at E University Hospital. The subjects consisting of 179 normal newborn who is to receive phototherapy due to bilirubinemia in the early postnatal period. Six groups compared the effectiveness of phototherapy based on hours of radiation ; 6hrs, 9hrs, 12hrs, 15hrs, 18hrs, 21hrs. The results were as follows 1) Effectiveness of phototherapy which means serum total bilirubin decrements were significantly different in groups (F=9.812 p=.000). And follow up study was showed the subset in less than 15hrs groups and more than 15hrs groups. 2) There was no significant difference on the effect of phototherapy between aged after birth. 3) An hours of radiation and the number of stools was not revealed the relationship. The results obtained from this study suggest that 15hrs radiation per day is effective in phototherapy. In the furture, more replication of this study will be contribute for neonatal nursing care.

• The Journal of Dong Guk Oriental Medicine
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• v.8 no.1
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• pp.191-204
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• 1999

A literature study was progressed for Introduction of the conception of oriental medical diagnosis and treatment and establishment of studious foundation of current and oriental medical cooperation for Beçet's disease to be known chronic and repetitional disease. In current medicine, valid medicine for Beçet's disease, from Beçet's, a turkish doctor, announced it the very first, was not made and objective diagnostic method not existed. Through clinical cases in oriental medical treatment, it was known that, except herbal medication, acupuncture, medicine of external application and beam-therapy were applied.

• Proceedings of the KOR-BRONCHOESO Conference
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• 1987.05a
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• pp.11.2-11
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• 1987

1987년 2월 1일 부터 1987년 3월28일까지 본 병원 인공신장실에서 혈액투석요법을 받고 있는 만성 신부전증 환자 20례 (남자 15례, 여자 5례)를 대상으로 2회의 청력검사를 시행하여 다음과 같은 결과를 얻었다. 1) 만성 신부전증으로 혈액투석요법을 받고 있는 환자 20례 중 7례 (35%)에서 청력손실을 보였다. 2) 연령분포상 20대에서는 2명중 청력손실을 보인 예는 없었으며, 30대는 7명중 1명, 40대는 5명중 4명, 60대는 1명중 1명에서 청력손실을 보였으며 7례 전례가 남자였다. 3) 청력손실의 양상은 전례에서 양측성이며 고음장애형이었다. 4) 임피던스 청력검사상 tympanogram A형이 2귀 였으며 2례(4귀)에서는 acoustic reflex가 나타나지 않았다. 5) 청력손실을 보인 7례중 3례에서 75% 이상의 SISI score를 나타내었고 어음청력검사상 25㏈ 이상의 청력손실을 보인 예는 없었다. 6) 전해질농도와 난청의 정도, 혈액투석회수와 청력손실의 정도에는 유의한 연관이 없었다.

• Journal of the Korean Applied Science and Technology
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• v.39 no.4
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• pp.552-559
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• 2022

Atopic dermatitis (AD) is a chronic inflammatory skin disease accompanied by severe itching, mainly before five. The aim of this study is to investigate the effects of 405 nm+850 nm LED light therapy on AD-like symptoms in NC/Nga mice. The mice were randomly placed in the normal (Vehicle), atopic dermatitis-induced (CON), and 405 nm + 850 nm LED light therapy (LED) groups. The LED experimental group conducted 405 nm+850 nm wavelength LED ray therapy for 10 minutes a day for seven days. LED light therapy research confirmed the improvement and improvement of Dermatics score and observed the reduction of epidermal tissue thickness caused by dermatitis. Based on the significant decrease of serum IL-1𝛽 and transdermal moisture loss and serum IgE concentration due to LED light therapy, LED light therapy can help restore normal skin conditions in mice that cause atopic dermatitis. This study showed the anti-atopic effect of infrared light and blue light. Light in mice with atopic dermatitis led to the simultaneous use of circular LEDs with two wavelengths.

• Journal of Veterinary Clinics
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• v.14 no.2
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• pp.168-171
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• 1997

The present experiment was conducted to compare the therapeutic effects of laser irradiation on Kyo-So Hyul with those of antidisrrheal drugs gentamycin, berberine and sulfisomidine for 173 piglets with diarrhea as major symptoms. The results obtained were as follows; antidiarrheal drugs were effective in fifty nine (78%) of seventy six piglets and ineffective in seventeen (22%) of seventy six piglets. Laser irradiation on the Kyo-So Hyul were proved as effective in eighty eight (91%) of ninety seven piglets and invalid in nine (9%) of ninety seven piglets.

• Journal of Chest Surgery
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• v.36 no.10
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• pp.794-797
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• 2003

Photodynamic therapy (PDT) is a local, endoscopically controlled nonoperative therapeutic technique based on selective sensitization of mucosal, malignant and precancerous lesions of the esophagus, trachea and bronchus prior to light-induced tissue destruction in the department of thoracic and cardiovascular surgery. PDT is effective and safe for palliative treatment of neoplasms in the stomach, esophagus, and lung. But skin phototoxicity is unsatisfactory, therefore optimization of management of post-PDT is necessary for preventing phototoxic side effects of skin. Careful patient education in photoprotection techniques, close patient follow-up, early dermatologic referral and medical treatment are recommended. We performed PDT in a patient with intrathoracic constructed stomach. We report this case with a brief review of literatures, therefore.

• Korean Journal of Psychosomatic Medicine
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• v.15 no.1
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• pp.14-21
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• 2007

Premenstural dysphoric disorder(PMDD) imposing 4-5% of women is possibly caused by an enhanced responsiveness to the changes of sex steroid hormones and the decrease of serotonin, melatonin and GABA. The common clinical features between PMDD and depression, seasonal affective disorder, panic disorder and anorexia nervosa suggest a relatedness between PMDD and each of them. The diagnostic criteria of DSM-IV-Tr for PMDD requires psychological symptoms, that commonly include irritability, anger, depression, mood swing, affect lability, tension, anxiety, fatigue and food craving. As of today, the best pharmacological treatment for PMDD is the selective serotonin reuptake inhibiter, and leuprolide, danazol, estradiol, spironolactone and bromocriptine are possible alternatives. Nonpharmacological treatments for patients with mild to moderate symptom severity are diet, exercise, light therapy, psychotherapy and keeping a diary.