• 제목/요약/키워드: Skin Disease

검색결과 1,442건 처리시간 0.031초

Involvement of HIF-1α in UVB-Induced Epidermal Hyperplasia

  • Cho, Young-Suk;Kim, Chan-Hyung;Park, Jong-Wan
    • Molecules and Cells
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    • 제28권6호
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    • pp.537-543
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    • 2009
  • Keratinocyte overgrowth after UVB exposure is believed to contribute to skin photoageing and cancer development. However, little is known about the transcription factors that epigenetically regulate keratinocyte response to UVB. Recently, $HIF-1{\alpha}$ was found to play a role in epidermal homeostasis by controlling the keratinocyte cell cycle, and thus, we hypothesized that $HIF-1{\alpha}$ is involved in UVB-induced keratinocyte growth. In cultured keratinocytes, $HIF-1{\alpha}$ was found to be down-regulated shortly after UVB exposure and to be involved in UVB-induced proliferation. In mice repeatedly treated with UVB, the epidermis became hyperplasic and keratinocytes lacked $HIF-1{\alpha}$ in nuclei. Based on these results, we suggest that the deregulation of $HIF-1{\alpha}$ is associated with UVB-induced hyperplasia of the epidermis. This work provides insight of the molecular mechanism underlying UV-induced photoageing and skin cancer development.

Clinical Effectiveness of a Unani Regimen in the Management of Hasāh al-kuliya (Nephrolithiasis): A Case Report

  • Qaiyyum, Ifra Abdul;Nawab, Mohammad
    • 셀메드
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    • 제10권3호
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    • pp.23.1-23.5
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    • 2020
  • Hasāh al-kuliya (Nephrolithiasis) is a common disease with a worldwide prevalence of about 12%. A 64 years old male patient, who visited the outpatient department of National Research Institute of Unani Medicine for Skin Disorder (NRIUMSD), Hyderabad, presented with complaints of mild dull pain in right flank region and burning micturition for one month. The ultrasonography of whole abdomen confirmed that there was one stone of 5 mm in calyceal region of each kidney. The patient was treated with the Unani regimen comprising of three formulations Majoon, Hajrul Yahood (5 gm), Jawarish Zarooni Sada (5 gm) and Habb-i-Mudir (1000 mg) for 6 months. The patient did not report any acute pain during the therapy. After 6 months of treatment the ultrasonography of whole abdomen showed absence of the stone from each kidney, ureters and bladder. There was no recurrence of the disease during next 6 months of post treatment follow up. This case report documented the successful medical treatment and prevention of recurrence of bilateral nephrolithiasis through Unani medicines. It concluded that the Unani regimen was effective and safe in the management of bilateral nephrolithiasis.

간농양, 신농양이 동반된 괴저성 농창 1례 (A Case of Ecthyma Gangrenosum Associated with Liver Abscess and Renal Abscess)

  • 서지영;김신영;한만용;이규형
    • Pediatric Infection and Vaccine
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    • 제9권1호
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    • pp.104-109
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    • 2002
  • 녹농균은 면역질환이 있거나, 기저의 악성질환이 있을 때 주로 감염되며, 건강한 환아에서 감염되는 경우는 흔하지 않다. 저자들은 특별한 면역질환이나 기저질환 없이 녹농균감염이 간, 신장, 피부 등에 다발적으로 발생하여 간농양과 신농양, 신우신염을 동반한 괴저성 농창으로 진단된 1례를 경험하였기에 보고하는 바이다. 괴저성 농창은 조기 진단과 조기 치료가 예후에 중요한데, 본 증례에서는 비교적 조기 진단과 치료가 이루어져 좋은 예후를 보인 것으로 사료된다.

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Immunohistochemistry of Janus Kinase 1 (JAK1) Expression in Vitiligo

  • Abdou, Asmaa Gaber;Maraee, Alaa;Yassien, Hossam;Sarhan, Mona
    • 대한병리학회지
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    • 제52권6호
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    • pp.363-368
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    • 2018
  • Background: Vitiligo is a chronic autoimmune disease in which the destruction of melanocytes causes white spots on the affected skin. Janus kinase (JAK) is a family of intracellular, non-receptor tyrosine kinases that transduce cytokine-mediated signals via the JAK-signal transducer and activator of transcription pathway. The aim of the present study is to explore the possible role of JAK1 in the pathogenesis of vitiligo using immunohistochemical methods. Methods: The current study was conducted in a sample of 39 patients who presented with vitiligo and 22 healthy individuals who were age and sex matched as a control group. We used immunohistochemistry to evaluate JAK1 status (intensity and distribution) and assess the percentage of residual melanocytes using human melanoma black 45 (HMB45). Results: Intense and diffuse JAK1 expression was significantly more likely to indicate vitiliginous skin compared to normal skin (p<.001). Strong and diffuse JAK1 expression was associated with short disease duration, female sex, and lower percentage of melanocytes (detected by HMB45) (p<.05). Conclusions: JAK1 may be involved in the pathogenesis of vitiligo, as indicated by intense and diffuse expression compared to control and association with lower percentage of melanocytes detected by HMB45 immunostaining.

Immunopathology and Immunotherapy of Inflammatory Skin Diseases

  • Ahreum Song;Sang Eun Lee;Jong Hoon Kim
    • IMMUNE NETWORK
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    • 제22권1호
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    • pp.7.1-7.20
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    • 2022
  • Recently, there have been impressive advancements in understanding of the immune mechanisms underlying cutaneous inflammatory diseases. To understand these diseases on a deeper level and clarify the therapeutic targets more precisely, numerous studies including in vitro experiments, animal models, and clinical trials have been conducted. This has resulted in a paradigm shift from non-specific suppression of the immune system to selective, targeted immunotherapies. These approaches target the molecular pathways and cytokines responsible for generating inflammatory conditions and reinforcing feedback mechanisms to aggravate inflammation. Among the numerous types of skin inflammation, psoriasis and atopic dermatitis (AD) are common chronic cutaneous inflammatory diseases. Psoriasis is a IL-17-mediated disease driven by IL-23, while AD is predominantly mediated by Th2 immunity. Autoimmune bullous diseases are autoantibody-mediated blistering disorders, including pemphigus and bullous pemphigoid. Alopecia areata is an organ-specific autoimmune disease mediated by CD8+ T-cells that targets hair follicles. This review will give an updated, comprehensive summary of the pathophysiology and immune mechanisms of inflammatory skin diseases. Moreover, the therapeutic potential of current and upcoming immunotherapies will be discussed.

Spatial Analysis of Skin Cancer Incidence in Iran

  • Pakzad, Reza;Ghoncheh, Mahshid;Pournamdar, Zahra;Pakzad, Iraj;Momenimovahed, Zohre;Salehiniya, Hamid;Towhidi, Farhad;Makhsosi, Behnam Reza
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권sup3호
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    • pp.33-37
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    • 2016
  • Skin cancer is one of the most common cancers worldwide, including in Iran. Variations in its incidence rate among geographical areas are due to various contributing factors. Since there has been a lack of studies on this topic in our country, the present spatial analysis of skin cancer incidence in Iran in 2009 was conducted using data from the cancer registry system for the country. The reported incidences of the disease were standardized on the basis of the World Health Organization population and the direct method. Then the data were inserted into the GIS software, and finally, using the analysis of hot spots (Getis-Ord Gi), high-risk areas were drawn. Provinces that were 1.9 SD higher or lower than the national average were considered hot spots or cold spots, with significance at the level of 0.05. In 2009, a total of 9,964 cases of skin cancer occurred, 3,696 in women and 6,268 in men (standardized incidence rates of 15.8 and 22.6, respectively). The results of the study showed that in men and women, the disease demonstrated high incidence in the central provinces and desert regions. In women, Yazd Province and in men, Qom Province had significant hot spots (p <0.05). While Isfahan, Markazi, Tehran and Kurdistan provinces were expected to be hot spots, the differences from the national average were not significant at the 0.05 level. As well, the provinces of Sistan Va Baluchistan, Kerman, and Hormozgan were identified as cold or low-risk disease regions (p <0.05). The central provinces of the country due to hot weather conditions, more solar radiation, and closer vicinity to the central desert of Iran demonstrated higher incidence rates for skin cancer, so further epidemiological studies into the etiology and early detection are essential in these areas.

Breeding on High Lycopene and Beta Carotene with Multi-Disease Resistance in Tomato

  • Kim, Myung Kwon;Lee, Hee Bong
    • 한국육종학회지
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    • 제41권1호
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    • pp.1-8
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    • 2009
  • This study was carried out to breed and develop high quality and functional nutrient tomato with multi disease resistance as well as a stable growing adaptation for fresh market usage under protected plastic houses cultivation. The materials were used 5 inbred lines and their 6 hybrids of large tomato group, which have been bred and developed from 1999 to 2007 in Division of Plant Resource Department of Chungnam National University. Fruit weight showed hybrid vigor effect that $F_1$ hybrids weighed more than their parent lines, fruit shape formed three type of oblate, deep oblate and globe shape, in firmness and pericarp thickness have got a high significant correlation, inbred DN611 line was measured the most firm fruit with 6.04 mm pericarp thickness. In fruit color at maturity, pink color crossed to red color appeared all red fruit color in the $F_1$ hybrids, it means red skin color is a dominant gene compared to pink skin color is a recessive gene in tomato, while between fruit skin color and shoulder part color showed no any co-relationship. The sugar content and titratable acid of $F_1$ hybrids inherited an intermediate data of their parent lines, the flavor of KP543 inbred line and the hybrid (JB535 x KP543) revealed the better taste with high brix and proper titratable acid content$^{*}$. In beta carotene content DN611 line showed 2~3 times higher than other materials so that its 3 hybrids contained an increased level of beta carotene, lycopene content was not so much difference among inbred lines and $F_1$ hybrids, of them MD508 contained higher of 8.72 mg and hybrid (JB535 x JA517) had 8.05 mg lycopene content per 100 g fruit, overall pink skin color and red skin color measured a higher lycopene content than yellow and orange skin color at ripe stage. In disease resistance test by PCR marker for Fusarium race2 (I2), Nematode (Mi1), ToMV ($Tm2^2$), Cladosporium (Cf9), (JB535 x JA517) hybrid have got multi-resistance with homozygote band in Nematode, ToMV, Cladosporium and heterozygote band in Fusarium race2. Through this breeding program we could select high quality and functional nutrient with multi resistant $F_1$ hybrids and inbred lines in tomato which are two best hybrids (JB535 x MD508), (JB535 x JA517), additionally developed high beta carotene inbred line DN611 and increased the level of lycopene inbred line MD508. These results will be very useful to make a high quality tomato variety continuously.

피삼에 의한 송아지 광과민증 1례 (Photosensitization due to the ingestion of Japanese millet (Echinochloa crusgalli) in a Holstein calf)

  • 장광호;이주명
    • 대한수의학회지
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    • 제38권2호
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    • pp.436-440
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    • 1998
  • Photosensitization occurred in a 4-month old Holstein calf soon after going onto the pasture lush with green Japanese millet(Echinochloa crusgalli). Skin lesions were restricted to the unpigmented white area of skin. They were most pronounced on the dorsum of the body, diminishing in degree down the sides and were absent from the ventral part. The demarcation between lesions and normal skin was clearcut. There were edema, exudation and sloughing of affected skin on the left gluteal region, and erythema, edema and scab on right scapular region. Interception of the light, discontinuance of Japanese millet ingestion, and the administration of antihistamine and penicillin made the calf rapid recovery. This disease was considered photosensitization due to chlorphyll in ingested Japanese millet.

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양식산 넙치의 백화현상에 따른 아미노산 조성의 비교 (Comparison of Amino Acid by Appearance of Albinism in Cultured Flounder Paralichthys olivaceus)

  • 김종현
    • 한국식품영양학회지
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    • 제12권5호
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    • pp.496-501
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    • 1999
  • Albinism is a phenomenon that color of the body surface is changed to white orfaint brown from the specific color to the species by difficiency of pigments due to mutation or disease. This study was undertaken to investigate the experimental basis on the appearance of albinism in cultured flounder Paralichthys olivaceus. The skin and muscle from the normal and albinic flounder were used by measuring contents of amino acid free amino acid. The results were summarized as follows: Contents of amino acid in theskin and muscle are different from normal and albinic flounder. Phenolic and sulfuric amino acids in the skin of normal flounder were 2 times those of albinic ones. Especially tyrosine contents of the skin in normal flounder were 24 times higher than those. Methionine was 26 times higher than those Phenylalanine was 1.6 times higher. In free amino aicd phosphoserine and phosphoethanolamine were a little higher than that ones. The melanin formation of the skin in flounder was affected by substrates such as phenolic amino acid and cofactor such as sulfuric amino acid.

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