Neste estudo conduz-se uma revisão bibliográfica da literatura sobre dermatologia e gravidez abrangendo o período de 1962 a 2003. O banco de dados do Medline foi consultado com referência ao mesmo período. Não se incluiu a colestase intra-hepática da gravidez por não ser ela uma dermatose primária; contudo deve ser feito o diagnóstico diferencial entre suas manifestações na pele e as dermatoses específicas da gravidez. Este apanhado engloba as características clínicas e o prognóstico das alterações fisiológicas da pele durante a gravidez, as dermatoses influenciadas pela gravidez e as dermatoses específicas da gravidez. Ao final apresenta-se uma discussão sobre drogas e gravidez.
Dermoscopy is a method of increasing importance in the diagnoses of cutaneous diseases. On the scalp, dermoscopic aspects have been described in psoriasis, lichen planus, seborrheic dermatitis and discoid lupus. We describe the "comma" and "corkscrew hair" dermoscopic aspects found in a child of skin type 4, with tinea capitis. Keywords: Child; Dermoscopy; Tinea capitis Resumo: A dermatoscopia é um método que ganha cada vez mais importância na diagnose de diversas dermatoses. No couro cabeludo, já foram descritos os aspectos dermatoscópicos presentes na psoríase, no líquen plano, na dermatite seborréica e no lúpus discóide. Nós descrevemos padrão dermatoscópi-co de "cabelos em vírgula e em saca rolhas" encontrado em uma criança com fototipo 4, com tinha do couro cabeludo. Palavras-chave: Criança; Dermatoscopia; Tinha do couro cabeludo Received on 23.06
The actions of neurotrophic factors i.e. basic fibroblast growth factor (bFGF, FGF-2) to neurons are related not only to neuronal development and maintenance but also to synaptic plasticity regarding neurotransmission. We analyzed here the levels of FGF-2 immunoreactivity in the nucleus tractus solitarii (NTS) of Wistar Kyoto rats in response to alterations of neuronal activity promoted by the stimulation of the baroreceptor reflex following an aortic coarctation-induced-hypertension. The FGF-2 immunoreactivity (IR) was found in the cytoplasm of the neurons and in the nuclei of the glial cells in the NTS. A large number of NTS neurons expressed FOS immunoreactivity 4 h after coarctation, as an indication of neuronal activity. Stereological methods showed an increased number of FGF-2 immunoreactive (ir) neuronal profiles (90%) and glial profiles (149%) in the NTS of the 72 h aortic coarctated rats. 1-week later, FGF-2 ir neurons were still increased (54%) but no change was found in the number of FGF-2 ir glial profiles. The double immunoperoxidase method revealed that the majority of the FGF-2 ir glial cells was glial fibrillary acidic protein (GFAP) positive astrocytes. GFAP immunohistochemistry showed an astroglial reaction at 72 h time-interval (55%) but not 1 week after stimulation. The number of the cresyl violet positive neurons and OX42 ir profiles (marker of activated microglia) in the NTS of coarctated rats were not different from control by 1 week and 1 month after the surgery, indicating a lack of NTS injury in this period following coarctation hypertension. FGF-2 may be an important neurotrophic factor in areas involved in the control of blood pressure. The increased FGF-2 IR in the NTS cells following neuronal stimulation may represent trophic and plastic adaptive responses in this nucleus in an autocrine/paracrine fashion.
Leprosy is an important public health problem in Brazil. However, this disease is still poorly diagnosed in its early stages, leading to permanent disability and disfigurement. We examined eight patients with clinical and histological diagnosis of multibacillary leprosy who were being treated for other diseases for about three years without clinical hypothesis of leprosy. These cases illustrate the importance of medical education and public information about leprosy's signs and symptoms for prompt recognition and treatment, which are necessary to prevent permanent disabilities and eradicate the disease.
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