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1.
J Clin Neurosci ; 47: 190-197, 2018 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-29074315

RESUMEN

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.


Asunto(s)
Carcinoma Basocelular/patología , Neoplasias de Cabeza y Cuello/patología , Cuero Cabelludo/patología , Neoplasias Cutáneas/patología , Anciano , Anciano de 80 o más Años , Carcinoma Basocelular/cirugía , Duramadre/patología , Femenino , Neoplasias de Cabeza y Cuello/cirugía , Humanos , Masculino , Persona de Mediana Edad , Procedimientos de Cirugía Plástica/métodos , Neoplasias Cutáneas/cirugía , Cráneo/patología , Colgajos Quirúrgicos
2.
Cardiovasc Drugs Ther ; 22(4): 275-82, 2008 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-18327703

RESUMEN

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.


Asunto(s)
Cafeína/farmacología , Café , Interacciones Alimento-Droga , Ácidos Heptanoicos/farmacología , Inhibidores de Hidroximetilglutaril-CoA Reductasas/farmacología , Infarto del Miocardio/prevención & control , Daño por Reperfusión Miocárdica/prevención & control , Miocardio/patología , Pirroles/farmacología , Administración Oral , Animales , Atorvastatina , Presión Sanguínea/efectos de los fármacos , Cafeína/administración & dosificación , Modelos Animales de Enfermedad , Frecuencia Cardíaca/efectos de los fármacos , Masculino , Infarto del Miocardio/patología , Infarto del Miocardio/fisiopatología , Daño por Reperfusión Miocárdica/patología , Daño por Reperfusión Miocárdica/fisiopatología , Miocardio/metabolismo , Fosforilación , Proteínas Proto-Oncogénicas c-akt/metabolismo , Ratas , Ratas Sprague-Dawley , Receptores Purinérgicos P1/efectos de los fármacos , Receptores Purinérgicos P1/metabolismo
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