We examined subjective symptoms, lifestyle, and serum carotenoid levels of hyperglycemia according to the glycohemoglobin A_1c (HbA_1c) level among 320 male factory workers and 177 male office workers of a steel factory. In this cross-sectional study, office workers with a low vegetable intake and low serum levels of carotenoids, such as α- and β-carotenes, showed a greater prevalence of hyperglycemia than did those with higher levels, whereas the same trend was not seen among the steel-factory workers. Almost all subjects showing hyperlipemia among the factory workers tended to have mental-load factors, such as sleeplessness and frequent urination at night.
In conclusion, healthcare management of hyperlipemia screened by peripheral Hb_1cC levels appears to be important to prevent Hb_1cC levels from exceeding 5.6%. Among the office workers, high serum β-carotene levels, which reflected positive lifestyle factors such as a high intake of green-yellow vegetables, were suggested to be important. For factory workers, a low frequency of mental-load factors was found to be important.

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Among 2, 503 people checked in a brain health examination program during the previous year, 51 cases of suspected unruptured cerebral aneurysm were found on MR angiogram (MRA) . The frequency of suspected unruptured aneurysm was the highest in patients in their sixties. The distribution of suspected unruptured aneurysms was 26 in the internal carotid artery area, 14 in the middle cerebral artery area, 9 in the anterior cerebral artery area and 2 in the vertebro-basilar artery area. In 15 of 29 cases (52%), the unruptured aneurysms were could be observed by 3 D-CTA. The rate of diagnostic consistency of MRA with 3 D-CTA in the middle cerebral artery area and in the internal carotid artery area was 92% and 20%, respectively. The positive predictive value of MRA diagnosis of aneurysms larger and smaller than 4 mm in the maximum diameter on MRA was 82% and 33%, respectively.
In the middle cerebral artery area, unruptured aneurysms could be correctly detected on MRA in a regular health examination program. In the internal carotid artery area, correct MRA diagnosis of aneurysm is difficult.

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[in Japanese]

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