Abstract. We are exposed to many external and internal stresses in this day and age. Stress weakens the function of immune systems in living organisms and disturbs homeostasis. As a result, stress induces various psychosomatic diseases. Thus, ways of reducing stress and thus protecting humans from disease must be developed. One such method is called "the prevention of Mibyou" in Kampo, the Chinese traditional medicine. Many studies have reported the direct effects of medical ginseng on damaged target organs and recovery from disease. It also increases immune potential and may maintain homeostasis of living organisms through the autonomicendocrine systems. It is also thought to prevent the development of disease. We studied and considered the action of medical ginseng on living organisms that were exposed to various stresses such as cold environment and industrial work. Furthermore, we confirmed the preventive effects of medical ginseng on the common cold symptom complex, including flu, by clinical observation. Here, we report our experiences.

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The co-aggregation characteristics between Fusobacterium nucleatum and streptococci were examined to clarify the adherence factors participating in the co-aggregation. Nineteen strains of F. nucleatum were classified into 8 groups according to co-aggregation titer and inhibition by L-arginine, L-lysine and N-acetyl-D-galactosamine (or lactose). The inhibition activity was, however, very different from strain to strain. With two fusobacterial strains, two inhibitors, which were both inhibition negative on their own, completely inhibited the co-aggregation when used together in a mixture. In some co-aggregation pairs, the protease treatment of F. nucleatum inactivated one of the adherence factors, and resulted in the change of inhibition characteristics. These results indicate the multimodal co-aggregation of F. nucleatum with streptococci mediated by L-arginine-sensitive, L-lysine-sensitive, N-acetyl-D-galactosamine-sensitive and in some resistant factors, and that the adherence factor or factors participating the co-aggregation change according to the co-aggregation partners.

The long-term outcome of a VATS stapled bullectomy was unsatisfactory as a radical therapy for primary spontaneous pneumothorax. A symphysial procedure should therefore be added to VATS stapled bullectomy in order to prevent long-term postoperative recurrence.

Placement of a wide absorbable mesh with fibrin glue at the apical visceral pleura significantly reduced postoperative recurrence after thoracoscopic bullectomy for PSP. The mesh was thought to act as a foreign body on the pleura and induce local inflammatory adhesion between the apical pleurae after bullectomy. This was an easy and effective symphysial procedure.

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