This study was designed to investigate the effects of green tea extract on aluminum-induced damage to phospholipid content in old rat cerebral tissue. The aim of this study was to investigate the possibility that aluminum is the cause of Alzheimer’s disease. Forty Sprague-Dawley old male rats weighing 350±10 g were divided into four groups, consisting of a control group (CON), 40 ppm aluminum sulfate group (Al-40), green tea water extract group (GTWE), and 40 ppm aluminum sulfate and green tea water extract groups (Al-40+GTWE) and kept on their respective diets for 12 weeks. In order to discover the influence of aluminum on cerebral tissue of old male rats, the serum aluminum concentration and phospholipid composition were compared between the aluminum-treated group and the normal group. The results showed that the serum aluminum concentration was higher in the aluminum sulfate-treated group than in the normal group. The cerebral tissue phospholipid concentration decreased significantly in the aluminum sulfate treated group as compared to the normal group. The results of this experiment show that increase of aluminum concentration in experimental animals causes the rise of serum aluminum and phospholipid concentrations, phenomena that are very similar to those shown in Alzheimer’s disease., The results of this experiment, together with reports that aluminum is a cause of neurofibrillary tangles in cerebral tissue, therefore demonstrate the possibility that aluminum is the cause of Alzheimer’s disease. Green tea water extract is also shown to be an effective therapeutic candidate for the treatment of Alzheimer’s disease.

This paper attempts to analyze and prove Yeats' gradual acceptance of the middle class and the people's democracy of South Ireland, just liberated from England. He always struggled against the Irish Catholic bourgeoisie and their practical and political nationalism during his lifetime for realizing his ideal vision of Ireland embodying the “Unity of Being”; he dreamed to establish a culturally aristocratic nation keeping order not by forced law and power but by imagination and desire of self-transcendence, while South Ireland pursued practical interests and became a theocracy. After burning his “rage and lust” against the mass culture of post-colonial Catholic Ireland, Yeats began to admit Catholic Ireland as it was with the perspective of the poetic transcendence, “tragic joy.” His recognition of the Catholic middle class at the end of his life is considered for attaining the sense of unity with Irish people, which was essential to his vision of nation. This paper traces his changing attitudes toward the middle class, especially focusing on such poems as “The Municipal Gallery Revisited,” “The Statues,” “Circus Animal's Desertion,” and “Cuchulain Comforted.”

Medicinal plants were screened for the inhibitory effects on human immunodeficiency virus type 1 pretense. Of the extracts tested, the strong inhibitory effects were observed in the acetone extracts of the pericarp of Camellia japonica. Camelliatannin H from the pericarp of C. japonica showed a potent inhibitory activity on HIV-1 pretense. Effects of the extract and compound from leaves of Zanthoxylum piperitum on the enzyme activities were investigated in the liver of bromobenzene-treated rats. The methanol extract and protocatechuic acid isolated from Z. pipetitum reduced the activity of aniline hydroxylase that increased by bromobenzene, while did not affect the activities of aminopyrin N-demethylase and glutathione S-transferase. The extract and protocatechuic acid recovered significantly the activity of epoxide hydrolase decreased by bromobenzene.