INTRODUCTION AND OBJECTIVES Cerebrospinal fluid leaks associated to meningoencephaloceles of the sphenoid lateral recess are rare entities. A congenital bony defect at this level results in the persistence of Sternberg's canal, or a lateral craniopharyngeal canal, which is supposed to be the origin of these lesions. Our objective was to show that the endoscopic transpterygoid approach is an eff...

(EC 2.6.1.5,1 L-tyrosrne : 2-oxoglutarate aminotransferase), alanine aminotransferase (EC 2.6.1.2, L-alaflme :2-oxoglutarate aminotransferase), and aspartate aminotrans ferase (EC 2.6.1.1, L-aspartate : 2-oxoglutarate aminotransferase) in tumor-bearing rats. From the results and studies on various analogous conditions, the metabolism of tumor-bearing animals is discussed. It was found that the ...

Despite evidence that smoking behaviour increases in the context of stress, there has yet to be a clear-cut demonstration that nicotine intake is similarly enhanced. Although nicotine intake has been shown to reduce reported anxiety in the context of stress, the controlling conditions (type of stressor, intensity, temporal relationships, etc.) need further exploration. Recent findings involving...