[Approach to sick building problem in schools: a workshop "Saga Forum on Environment" project].

Objective: Saga University has the "Saga Forum of Environment" project conducted in collaboration with the Saga city local government. In this project, a workshop was held to study the sick building syndrome at schools. The purpose of this workshop was to evaluate indoor air pollution levels in elementary and junior high schools in Saga city.

Lack of aldehyde dehydrogenase ameliorates oxidative stress induced by single-dose ethanol administration in mouse liver.

Polymorphism of aldehyde dehydrogenase 2 (ALDH2), denoted ALDH2*2, is far more common in East Asian countries. Acetaldehyde, an intermediate metabolite of ethanol, is metabolized very slowly in people who have ALDH2*2, as the mutated ALDH2 lacks acetaldehyde metabolizing activity. On the other hand, it is well established that metabolism of ethanol causes oxidative stress in liver tissue.

Analysis of urinary metabolites of polycyclic aromatic hydrocarbons in incineration workers.

Incineration workers are exposed to various pyrolysis products of organic materials, heavy metals and polycyclic aromatic hydrocarbons (PAHs). In this study, the exposure of incineration workers to PAHs was evaluated by measuring urinary metabolites of pyrene and naphthalene. The concentrations of urinary 1-hydroxypyrene (1OHP), a metabolite of pyrene, and 2-naphthol (2NP), a metabolite of naphthalene, were measured among 100 workers in 4 different types of incinerators, both before and after their work shifts.

[Surgery for metastatic brain and spinal tumor from colorectal cancer].

Unlabelled: The results of invasive treatment of brain metastasis of colorectal cancer (6 cases) and spinal metastasis of colorectal cancer (3 cases), aimed at alleviating the symptoms, were analyzed. In all 6 cases of brain metastasis, metastases were also found in some other remote sites (often the liver). The average period from resection of the primary lesion to resection of the brain metastasis was 3 years and 3 months for this group.