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1.
J Clin Neurosci ; 47: 190-197, 2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-29074315

RESUMO

Basal cell carcinoma (BCC) is the most common skin malignancy in humans. Giant BCC is a rarer entity that is characterised by aggressive biological behaviour. Intracranial invasion by a BCC on the scalp is extremely rare. The gold standard treatment of BCCs is represented by surgical excision with a wide variety of reconstructive techniques. In this paper, we describe the largest series to date of recurrent BCCs with intracranial extension involving the dura mater. We report recurrent giant BCC of the scalp with dura mater invasion in 7 patients. All patients in this series previously had more than 2 operations. Gadolinium-enhanced MRI revealed neoplastic invasion of the meninges and brain tissues. All patients had a multi-disciplinary team approach with the surgical margins ranging between 1 and 2 cm depending on the location and the size of the tumour. 5 of the patients underwent reconstruction of the skin defect by antero-lateral thigh flap, 1 patient underwent reconstruction with pedicled myocutaneous (trapezius) flap, and 1 with a pedicled myocutaneous latissimus dorsi flap. There was a mean follow-up of 5.3 years. 2 patients died due to cardio-pulmonary complications in the neuro-intensive care unit. A multi-disciplinary team approach and early aggressive tumour resection followed by sophisticated reconstructive and aesthetic procedures appears to be a reliable and realistic treatment modality for invasive BCC.


Assuntos
Carcinoma Basocelular/patologia , Neoplasias de Cabeça e Pescoço/patologia , Couro Cabeludo/patologia , Neoplasias Cutâneas/patologia , Idoso , Idoso de 80 Anos ou mais , Carcinoma Basocelular/cirurgia , Dura-Máter/patologia , Feminino , Neoplasias de Cabeça e Pescoço/cirurgia , Humanos , Masculino , Pessoa de Meia-Idade , Procedimentos de Cirurgia Plástica/métodos , Neoplasias Cutâneas/cirurgia , Crânio/patologia , Retalhos Cirúrgicos
2.
Cardiovasc Drugs Ther ; 22(4): 275-82, 2008 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-18327703

RESUMO

PURPOSE: We asked whether caffeinated coffee (CC) blunts the infarct size (IS)-limiting effects of atorvastatin (ATV). BACKGROUND: Adenosine receptor activation is essential for mediating the IS-limiting effects of statins. Caffeine is a nonspecific adenosine receptor blocker, and thus drinking CC may block the myocardial protective effects of statins. METHODS: Rat received 3-day ATV (10 mg/kg/day) or water by oral gavage once daily. Drinking water was replaced by water + sugar (7.5 g/100 ml), CC with sugar, or decaffeinated coffee (DC) with sugar. On the 4th day, rats were anesthetized and underwent 30 min of coronary artery occlusion and 4 h reperfusion. Area at risk was assessed by blue dye and infarct size by TTC. RESULTS: Body weight and area at risk was comparable among groups. IS was 25.1 +/- 3.9% of the area at risk in the control group. In rats not receiving ATV, CC (25.5 +/- 3.1%) and DC (34.0 +/- 2.8%) did not affect IS. IS was significantly reduced by ATV in the water + sugar (11.7 +/- 0.7%, p = 0.015) and DC (11.5 +/- 1.0%; p < 0.001) groups, but not in the CC group (32.3 +/- 3.0%; p = 0.719). ATV increased myocardial levels of Ser-473 phosphorylated Akt in the water + sugar and DC groups, but not in the CC group. CONCLUSIONS: CC, but not DC, abrogated the IS-limiting effects of ATV by blocking the adenosine receptors and preventing the phosphorylation of Akt. CC did not affect IS in rats not receiving ATV.


Assuntos
Cafeína/farmacologia , Café , Interações Alimento-Droga , Ácidos Heptanoicos/farmacologia , Inibidores de Hidroximetilglutaril-CoA Redutases/farmacologia , Infarto do Miocárdio/prevenção & controle , Traumatismo por Reperfusão Miocárdica/prevenção & controle , Miocárdio/patologia , Pirróis/farmacologia , Administração Oral , Animais , Atorvastatina , Pressão Sanguínea/efeitos dos fármacos , Cafeína/administração & dosagem , Modelos Animais de Doenças , Frequência Cardíaca/efeitos dos fármacos , Masculino , Infarto do Miocárdio/patologia , Infarto do Miocárdio/fisiopatologia , Traumatismo por Reperfusão Miocárdica/patologia , Traumatismo por Reperfusão Miocárdica/fisiopatologia , Miocárdio/metabolismo , Fosforilação , Proteínas Proto-Oncogênicas c-akt/metabolismo , Ratos , Ratos Sprague-Dawley , Receptores Purinérgicos P1/efeitos dos fármacos , Receptores Purinérgicos P1/metabolismo
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