• Title/Summary/Keyword: dermatological

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Phototoxic Dermatosis among Coal-tar Pitch Workers (콜타르 피치를 취급하는 근로자의 광독성 피부질환)

  • Jung, Cheol;Lim, Hyun-Sul;Kim, Doo-Hie;Sung, Yeol-Oh
    • Journal of Preventive Medicine and Public Health
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    • v.30 no.1 s.56
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    • pp.145-155
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    • 1997
  • Interview survey and dermatological examination have been performed to investigate the health problems of workers continuously exposed to coal-tar pitch. The phototoxicity of coal-tar pitch was confirmed by the photopatch tests for six healthy adults. The main results are followings; 1. There was no special history of allergic diseases in both the exposed and non-exposed group. 2. The frequency of the phototoxic dermatosis and the coal-tar acne in the exposed group was significantly greate.(p<0.05) than that of the control group. In the exposed group, the phototoxic dermatosis and the coal-tar acne were observed in nine workers(90%) and seven workers(70%), respectively. However, those, disease were not observed in the control group. 3. Five results(83%) were positive to the photopatch test for coal-ta. pitch 48 hours after UVA irradiation. But the lesion was subsiding 72 hours after UVA irradiation. 4. Malignant cancers were not reported among workers ever exposed to coal-tar pitch. In conclusion, it appears that workers exposed to coal-tar pitch have high risks of phototoxic dermatosis and coal-tar acne. A health policy should be provided to prevent phototoxic dermatosis among coal-tar pitch workers. More studies are required to determine malignancy.

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Herbal Drugs through Chosun Maiyak Corporation 《朝鮮賣藥株式會社》in Japanese Colonial period (조선매약주식회사를 통해 본 일제강점기 한약의 모습)

  • Baek, Kyu-Hwan;Park, Gyu-Ri;Lee, Sang-Jae
    • Herbal Formula Science
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    • v.23 no.1
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    • pp.15-24
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    • 2015
  • Objectives l: This study is to investigate the emergence of herbal medicine during Japanese colonial period by reviewing newspaper advertisements and brochures about patient medicine of Chosun Maiyak Corporation. Methods : 69 kinds of patent medications and 584 newspaper advertisements are throughly reviewed to investigate dosage form, drug effect, sales unit and method, price, and advertisement pattern. Results : Lyungsinwhan represented more than half of the total advertisements, followed by Yungmihwan, Sahyangsohabwon, Yeollyeonggobondan, and Chiljehyangbuhwan. Lyungsinwhan was advertised mostly in spring and summer whereas Yungmihwan and Yeollyeonggobondan were advertised in spring and fall. Dosage form included pill(丸), mixture(膏), powder(散), and liquid(水, 液), while pill and mixture prevailed over other forms. Drug effect included dermatological, pediatric, digestive, and gynecological effects in the increasing order of drug numbers. Sales unit and price were found to vary significantly. Sales method included nationwide network distribution of medicine through postcards and stores. Conclusion : Herbal medicine during the colonial period was distributed in various kinds of forms with different effects and advertisement patterns through diverse sales unit and price.

Hypnotherapy for Warts : A Case Report (사마귀의 최면치료 1례)

  • Park, Hee-Gwan
    • Korean Journal of Psychosomatic Medicine
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    • v.6 no.2
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    • pp.188-192
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    • 1998
  • Brief hypnotherapy with daily self-hypnosis was used to a 20-year-old male patient who had severe warts on the fingers of both hands for 6 years. He had had several dermatological treatments, including attempts to remove the warts with topical chemotherapy, but the warts had always recurred. During the hypnotic session, it was suggested that the warts would begin to feel cool and disappear with imaginary laser. He responded well to ideosensory suggestions and was free of the warts within 5 sessions. Inquiry after 7 months revealed that no recurrence had taken place. Finally, it is stimulating to think that harmony between mind and body involving cell-mediated immunity can intervene in conditioning the course of the skin diseases.

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Isolation of inhibitors of NF-$\kappa$B activation by UV stimuli in transfectant HaCaT cells from Acanthopanacis sessilifflorum

  • Kim, Seong-Kie;Kim, Yeong-Shik;Ahn, Kwang-Seok;Ryu, Shi-Yong;Heor, Jung-Hee;Kim, Young-Sup
    • Proceedings of the PSK Conference
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    • 2002.10a
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    • pp.390.3-391
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    • 2002
  • Nuclear-kappa B(NF-$\kappa$B) plays a role in the regulation of genes responsible for inflammatory and immune responses as well as growth control of cells. A cell-based assay system for guiding NF-KB activity was developed to determine the influence of activated NF-KB in human keratinocytes. It suggested that this system could be used to determine the quantitative measurement of NF-$\kappa$B activity in the human skin and allow the monitoring of anti-inflammatory agent for dermatological means from various environmental stimuli. (omitted)

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Screening of Inhibitory Effects of an Oriental Herb on Melanogenesis (한약재에서의 멜라닌 생성 억제 효과 검색)

  • Kang, Kyoung-Ah;Han, Sang-Sook;Lee, Mu-Hyoung;Kim, Youn-Jung
    • Journal of East-West Nursing Research
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    • v.14 no.2
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    • pp.74-80
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    • 2008
  • Purpose: To screen candidate oriental herb material for antimelanogenics. Methods: Oriental herbs (n=100) were screened for mushroom tyrosinase inhibitory activity in vitro using the HM3KO human melanin cell line cultured in DMEM supplemented with 10% fetal bovine serum. Cytotoxicity was assessed by a cell viability assay involving 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), Trypan Blue exclusion, and cell enumeration. Results: Tyrosinase inhibitory effects on 100 oriental herbs was evident. Of these, 11 herbs inhibited tyrosinase activity by 40% without being cytotoxic to HM3KO cells. Three herb varieties significantly decreased melanin synthesis in HM3KO cells. Conclusions: Oriental herb can have antimelanogenic effects indicating their potential for functional therapeutic use in dermatological whitening.

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The Review on the Experimental Studies of Allergic Contact Dermatitis Published in The Journal of Korean Medical Ophthalmology & Otolaryngology & Dermatology (한방안이비인후피부과학회지에 게재된 알레르기성 접촉 피부염의 실험논문에 대한 고찰)

  • Cho, Young-Sun;Kim, Gyung-Jun
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.29 no.4
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    • pp.78-94
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    • 2016
  • Objectives : This study was carried out to analyze the trends of clinical studies of allergic contact dermatitis published in the Journal of Korean Medical Ophthalmology & Otolaryngology & Dermatology. Methods : We studied 10 research papers on allergic contact dermatitis published in JKOOD. We analyzed about experiment methods, pharmacodynamic effects, therapeutic effects in published papers. Results : 1. The number of searched journal is 10 papers. 2. All experiments was performed using DNCB primed mouse. To demonstrate therapeutic effect of drugs, previous researches observed dermatological and histopathogical conditions, erythema, melasma, white blood cell count, Lymphocyte ratio to white blood cell. 3. Most of drugs have heat-clearing and detoxifying effects. 4. Every drugs have positive effect in treating allergic contact dermatitis. Conclusions : Figuring out how experiment proceeded and tendency of drugs in researching allergic contact dermatitis is significance of this paper. Further research about drugs and their treating methods should be carried out to improve curative effectiveness for allergic contact dermatitis.

Clinical and Mycological Observations on Equine Ringworm Due to Microsporum gypseujm (말에 있어서 Microsporum gypseum에 의한 백선증의 임상학적 및 진균학적 관찰)

  • Pal Mahendra;Matsusaka Naonori;Lee Chang Woo
    • Journal of Veterinary Clinics
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    • v.11 no.1
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    • pp.343-346
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    • 1994
  • Microsporum gypseum was identified as the prime cause of dermatitis in two young horses who were housed in unhygienic stables. The lesions were mainly distributed on the thorax, abdomen and rump. The diagnosis was established on the direct demonstration of dermatophyte in the cutaneous lesions and isolation of the fungus in pure and heavy growth from the infected hairs and skin scales on mycological medium at 3$0^{\circ}C$. Microscopoc morphology of the isolate in 'PHOL' stain many macroconidia and few microconidia. Epidemoilogical investigation revealed the prevalence of M. gypseum in the soil of stables. Mycological examination is highly imperative to distinguish the disease from other dermatological disorders. This apperas to be the first report of equine dermatitis due to M. gypseum in Westenn India.

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Development of a Novel, Anti-idiotypic Monoclonal Anti-prolactin Antibody That Mimics the Physiological Functions of Prolactin

  • Wang, Meng;Zhang, Dian-Cai;Wang, Shen-Tian;Li, Ming-Long
    • Asian-Australasian Journal of Animal Sciences
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    • v.29 no.4
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    • pp.571-579
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    • 2016
  • In this work, we prepared a panel of monoclonal anti-idiotypic antibodies to ovine prolactin (oPRL) by the hybridoma technique. Among these antibodies, one anti-idotypic antibody (designated B7) was chosen for further characterization by a series of experiments. We first demonstrated that B7 behaved as a typical $Ab2{\beta}$ based on a series of enzyme-linked immunosorbent assays. Subsequently, the results of a competitive receptor-binding assay confirmed that B7 could specifically bind to the prolactin receptor (PRLR) expressed on target cells. Finally, we examined its biological activities in CHO-PRLR and Nb2 cells and observed that B7 could activate Janus kinase 2-signal transducer and activator of transcription signalling in CHO-PRLR and Nb2 cells and induce BaF3 proliferation. The present study suggests that i) B7 can serve as a PRLR agonist or PRL mimic and has potential applications in regulating mammary gland development, milk production and maintenance of lactation in domestic animals and ii) B7 may be a biological reagent that can be used to explore the mechanism of PRLR-mediated intracellular signalling.

Facial asymmetry: a case report of localized linear scleroderma patient with muscular strain and spasm

  • Kim, Jae-Hyung;Lee, Suck-Chul;Kim, Chul-Hoon;Kim, Bok-Joo
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.37
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    • pp.29.1-29.7
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    • 2015
  • Facial asymmetry is found in patients with or without cosmetic facial alterations. Some patients have facial asymmetry that manifests underlying skeletal problems, while others have only limited soft-tissue facial asymmetry. Orthognathic surgery brings about a dermatic change, as soft tissue covers underlying bones. Limited soft-tissue asymmetry, meanwhile, is difficult to correct. The treatment modalities for the creation or restoration of an esthetically pleasing appearance were autogenous fat grafts, cartilage graft, and silicon injections. A young female patient had right-side facial asymmetry. The clinical assessment involved visual inspection of the face and palpation to differentiate soft tissue and bone. Although the extra-oral examination found facial asymmetry with skin atrophy, the radiographic findings revealed no mandibular atrophy or deviation. She was diagnosed as localized scleroderma with muscle spasm. In conclusion, facial asymmetry patients with skeletal asymmetry can be esthetically satisfied by orthognathic surgery; however, facial atrophy patients with skin or subdermal tissue contraction need treatment by cosmetic dermatological surgery and orthodontic correction.

Tyrosinase Inhibitory and Antioxidant Activities of Korean Mistletoe (Viscum album var. coloratum) Extract and Its Fractions

  • Lyu, Su-Yun;Moon, You-Sun;Park, Won-Bong
    • Preventive Nutrition and Food Science
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    • v.10 no.3
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    • pp.244-250
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    • 2005
  • The copper-containing enzyme, tyrosinase, catalyzes the oxidation of tyrosine into dihydroxy phenylalanine (DOPA) and subsequently DOPAquinone. It is responsible, not only for the pigment melanin biosynthesis in human skin, but also for browning in foods. In the present study, tyrosinase inhibitory and antioxidant activities of Korean mistletoe extract and its fractions were investigated. As a result, both water and methanol (MeOn) extracts inhibited the tyrosinase activity. Among the fractions, the fraction eluted with $95\%$ MeOn significantly inhibited the tyrosinase activity. The fraction was further purified, and the purified fraction C strongly inhibited the enzyme activity up to $92\%$. In addition, water and methanol extracts exerted radical scavenging effects. The fractions eluted with $70\%\;MeOn\;and\;95\%$ Me on showed high radical scavenging activities. In conclusion, these results suggest that Korean mistletoe extract and its fractions might be useful for the treatment of various dermatological disorders such as epidermal hyperpigmentation and for improving food quality.