Cutaneous phaeohyphomycosis caused by Exophiala xenobiotica : a case report

We report a case of phaeohyphomycosis that affected the leg of a 45-year-old Brazilian man, car mechanic and renal transplanted. The direct mycological examination evidenced dematiaceous septated hyphae. The pathogenic fungal species was identified as Exophiala xenobiotica. Antifungal activity in vitro revealed terbinafine as the best antifungal. For treatment, it was chosen surgical excision of the entire lesion and used systemic itraconazole. Phaeohyphomycosis caused by Exophiala xenobiotica is extremely rare and is closely related to transplant patients

Atypical presentation of secondary syphilis: annular lesions in an elderly patient

Syphilis is a chronic bacterial sexually transmitted infectious disease caused by Treponema pallidum. Different age groups are affected by heterogeneous clinical forms of the disease. We report a case of atypical secondary syphilis in an elderly patient with diffuse annular erythematous lesions on the chest, back, upper and lower limbs diagnosed by histopathological, immunohistochemical and serological tests

Sharing and community curation of mass spectrometry data with Global Natural Products Social Molecular Networking

The potential of the diverse chemistries present in natural products (NP) for biotechnology and medicine remains untapped because NP databases are not searchable with raw data and the NP community has no way to share data other than in published papers. Although mass spectrometry techniques are well-suited to high-throughput characterization of natural products, there is a pressing need for an infrastructure to enable sharing and curation of data. We present Global Natural Products Social molecular networking (GNPS, http://gnps.ucsd.edu), an open-access knowledge base for community wide organization and sharing of raw, processed or identified tandem mass (MS/MS) spectrometry data. In GNPS crowdsourced curation of freely available community-wide reference MS libraries will underpin improved annotations. Data-driven social-networking should facilitate identification of spectra and foster collaborations. We also introduce the concept of ‘living data’ through continuous reanalysis of deposited data

La critica letteraria di Nicolò Tommaseo

Continua in 1932 (11), pp. 824-835; (12), pp. 909-932Università degli Studi di Triest

Case for diagnosis

Líquen nítido é uma dermatose rara, caracterizada por pápulas arredondadas normocrômicas de diâmetro, variando entre 1-2 mm, e geralmente assintomáticas. Sem predileção por sexo ou raça, acomete, principalmente, crianças e adultos jovens, na maioria dos casos, possuindo curso clínico imprevisível e tendendo à regressão espontânea, anos após o início da doença. As lesões são em geral localizadas, mas raros relatos da doença cursando com lesões disseminadas existem.Lichen nitidus is a rare dermatosis, characterized by round, skin-colored papules whose size varies between 1-2 mm and are generally asymptomatic. It does not have predilection for gender or race, affecting mainly children and young adults. Its clinical course is unpredictable, but most cases tend to spontaneously regress years after the onset of the disease. Lesions are often localized, but rare reports of disseminated disease exist

Case for diagnosis

Líquen nítido é uma dermatose rara, caracterizada por pápulas arredondadas normocrômicas de diâmetro, variando entre 1-2 mm, e geralmente assintomáticas. Sem predileção por sexo ou raça, acomete, principalmente, crianças e adultos jovens, na maioria dos casos, possuindo curso clínico imprevisível e tendendo à regressão espontânea, anos após o início da doença. As lesões são em geral localizadas, mas raros relatos da doença cursando com lesões disseminadas existem.Lichen nitidus is a rare dermatosis, characterized by round, skin-colored papules whose size varies between 1-2 mm and are generally asymptomatic. It does not have predilection for gender or race, affecting mainly children and young adults. Its clinical course is unpredictable, but most cases tend to spontaneously regress years after the onset of the disease. Lesions are often localized, but rare reports of disseminated disease exist

Insulin binding and internalization in rat hepatocytes during prenatal and postnatal life

Insulin binding to isolated rat hepatocytes was studied during prenatal and postnatal life. Results show that in hepatocytes isolated from prenatal, postnatal and adult rat there is a constant increase in the number of insulin binding sites per cell, whereas the affinity of plasma membrane receptors for the hormonal ligand remains unaltered from prenatal to adult hepatocytes. Autoradiographic studies indicate a greater internalization of hormone during prenatal life and, taking into account the increase of cell size, suggest an unchanged surface density of receptor sites before and after birth. © 1981