Abdominal Apoplexy after Pulmonary Lobectomy for Lung Cancer / Apoplejía abdominal tras una lobectomía pulmonar por cáncer de pulmón

ABSTRACT Abdominal apoplexy is a rare clinical entity, and its clinical manifestations are diverse. This case report is of a 52-year-old man who developed right upper abdominal pain with unstable haemodynamics 32 hours after right upper pulmonary lobectomy for lung carcinoma. Abdominal computed tomography showed a ruptured right gastric artery aneurysm.

RESUMEN La apoplejía abdominal es una entidad clínica rara, y sus manifestaciones clínicas son diversas. Este es un reporte de caso de un hombre de 52 años que presentó dolor abdominal superior derecho con hemodinámica inestable, 32 horas después de una lobectomía pulmonar superior derecha por carcinoma del pulmón. La tomografía computarizada abdominal mostró una ruptura de aneurisma de la arteria gástrica derecha.

Histone demethylase retinoblastoma binding protein 2 regulates the expression of -smooth muscle actin and vimentin in cirrhotic livers

Liver cirrhosis is one of the most common diseases of Chinese patients. Herein, we report the high expression of a newly identified histone 3 lysine 4 demethylase, retinoblastoma binding protein 2 (RBP2), and its role in liver cirrhosis in humans. The siRNA knockdown of RBP2 expression in hepatic stellate cells (HSCs) reduced levels of α-smooth muscle actin (α-SMA) and vimentin and decreased the proliferation of HSCs; and overexpression of RBP2 increased α-SMA and vimentin levels. Treatment with transforming growth factor β (TGF-β) upregulated the expression of RBP2, α-SMA, and vimentin, and the siRNA knockdown of RBP2 expression attenuated TGF-β-mediated upregulation of α-SMA and vimentin expression and HSC proliferation. Furthermore, RBP2 was highly expressed in cirrhotic rat livers. Therefore, RBP2 may participate in the pathogenesis of liver cirrhosis by regulating the expression of α-SMA and vimentin. RBP2 may be a useful marker for the diagnosis and treatment of liver cirrhosis.