Influence of dopamine on GABA release in striatum: evidence for D1-D2 interactions and non-synaptic influences

Serum samples of mice infected with 80 cercariae of Schistosoma mansoni for different time periods (2-20 weeks) were used in this study. It was observed that the concentrations of serum total cholesterol and triacylglycerol decreased significantly (P < 0.001, P < 0.0001 respectively) in infected as compared to control mice starting from the fourth week post infection. Similarly, the concentration of serum high density lipoprotein-cholesterol (HDL-C) decreased significantly (P > 0.001) in infected as compared to control mice. However, the serum lipoproteins profile was variable at different stages of infection. On the other hand, the liver weight increased significantly (P < 0.0001) in infected as compared to control mice starting from the sixth week post infection. These changes might be attributed to several metabolites released by S. mansoni which affect the host hepatic tissue resulting in decreased synthesis of these parameters and their release into the circulation.     

N(3) soordination by a purine analog. The crystal structure of trichloro(8-azaadeninium)zinc(II)

Duplication of the straight sinus is often noted in the venous phase of carotid angiograms. Since this vascular anomaly is rarely described in the literature, the authors present its incidence in a series of 700 cases, and consider its embryological origins and clinical significance.