نتایج جستجو برای: lichen communities

تعداد نتایج: 141598  

Journal: :Journal of bacteriology 2012
Hyoungseok Lee Seung Chul Shin Jungeun Lee Su Jin Kim Bum-Keun Kim Soon Gyu Hong Eun Hye Kim Hyun Park

The lichen-associated bacterial strain Sphingomonas sp. PAMC 26621 was isolated from an Arctic lichen Cetraria sp. on Svalbard Islands. Here we report the draft genome sequence of this strain, which could provide novel insights into the molecular principles of lichen-microbe interactions.

Journal: :Annals of dermatology 2009
Min Ji Kim Byung Yoon Kim Kyung Chan Park Sang Woong Youn

Lichen aureus is a rare type of chronic pigmented purpuric dermatosis. The eruptions consist of discrete or confluent golden to brownish lichenoid macules and papules, and are usually asymptomatic. Lichen aureus commonly occurs in young adults, but less frequently in children. We report the first case of multiple lichen aureus occurring in a Korean child.

Journal: :Giornale italiano di dermatologia e venereologia : organo ufficiale, Societa italiana di dermatologia e sifilografia 2011
Teresa Pusiol Maria Grazia Zorzi Doriana Morichetti Luigi Speziali

Hypertrophic lichen planus shows prominent hyperplasia and overlying orthokeratosis of the epidermis. To date, 50 cases of squamous cell carcinoma (SCC) have been reported as neoplastic transformation of hypertrophic lichen planus. We report a case of pseudoepitheliomatous hyperplasia (PEH) simultaneously found in hypertrophic lichen planus lesions simulating SCC, with special reference to the ...

Journal: :Dermatology online journal 2015
Feroze Kaliyadan Ali Al Ameer

A case of localized lichen planopilaris over the face, extending to the scalp is presented.This case highlights the different variations, which can occur in the presentation of localized lichen planus. The case was unique because of the extension of the lesions into the scalp. We also wanted to demonstrate the peculiar dermoscopic patterns of active lichen planopilaris when occurring over the f...

2017
Yukiko Takenaka Yoshiyuki Mizushina Nobuo Hamada Takao Tanahashi

Spore-derived mycobionts of the lichen Haematomma sp. were cultivated on malt-yeast extract medium supplemented with 10% sucrose to produce a new pyranonaphthoquinone, 4, as well as two known compounds (-)-usnic acid (2) and 5-deoxy-7-methylbostrycoidin (3). The structure of 4 was determined by spectroscopic methods. The inhibitory activities of 3, 4, and 6–8 against mammalian DNA polymerases (...

Journal: :International Journal of Medical Sciences 2004
Flávio Juliano Garcia Santos Pimenta Maria das Graças Rodrigues Pinheiro Ricardo Santiago Gomez

Lichen planus is a mucocutaneous disease of inflammatory nature and unknown etiology. It is characterized by a cell-mediated immunological response to induced antigenic change in skin and/or mucosa. The possible malignant transformation of lichen planus remains a subject of controversial discussions in the literature. hMSH2 is one of the human DNA mismatch repair (hMMR) genes and it plays an im...

2009
Sayed Mohammad Razavi Parichehr Ghalayani Mohammad Reza Salehi Hajar Attarzadeh Mahdi Shahmoradi

BACKGROUND Oral lichen planus (OLP) is a common chronic inflammatory mucocutaneous disease. Clinical diagnosis of OLP requires clinical work-up and histologic examination to rule out possible dysplasia and carcinoma. It is possible that oral mucosal viral infections including HPV infection may have a causative role in OLP pathogenesis. The aim of this study was to examine the coincidence of hum...

Journal: :Actas dermo-sifiliograficas 2012
M Gutiérrez-Pascual F J Vicente-Martín J L López-Estebaranz

Lichen sclerosus is a chronic inflammatory disease that can progress to malignancy. The literature indicates an association with anogenital squamous cell carcinoma and verrucous carcinoma. Two pathogenic pathways, differentiated vulvar and penile intraepithelial neoplasias, which have recently been described in relation to squamous cell carcinoma, are both highly associated with genital lichen ...

2017
Fabiane Andrade Mulinari-Brenner Marina Riedi Guilherme Murilo Calvo Peretti Betina Werner

Frontal fibrosing alopecia is a variant of lichen planopilaris with marginal progressive hair loss on the scalp, eyebrows and axillae. We report a case of frontal fibrosing alopecia and lichen planus pigmentosus in a postmenopausal woman, that started with alopecia on the eyebrows and then on the frontoparietal region, with periocular and cervical hyperpigmentation of difficult management. The ...

2017
Wiebren A. A. Tjalma Vasiliki Siozopoulou Manon T. Huizing

BACKGROUND Verrucous carcinoma of the vulva is extremely rare. It is a slow growing, low malignant variant of a squamous cell carcinoma with a cauliflower appearance. Women with lichen planus have an increased risk of developing vulval cancer. CASE PRESENTATION A 79-year-old woman consulted for vulval itching. On clinical examination, a 3-cm large verrucous clitoral cancer in an area of liche...

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