著者
Mafumi Owa Kazunori Aizawa Nobuyuki Urasawa Hiroyuki Ichinose Kazuya Yamamoto Koji Karasawa Mitsuru Kagoshima Jun Koyama Shu-ichi Ikeda
出版者
日本循環器学会
雑誌
JAPANESE CIRCULATION JOURNAL (ISSN:00471828)
巻号頁・発行日
vol.65, no.4, pp.349-352, 2001 (Released:2001-06-01)
参考文献数
13
被引用文献数
66 94

Four patients had the clinical features of `ampulla cardiomyopathy', consisting of acute-onset transient left ventricular apical akinesis with basal normokinesis, normal coronary angiogram, ST-segment elevation and subsequent giant T wave inversion, which mimicked acute coronary syndrome, the onset of which occurred shortly after extreme mental stress. Myocardial necrosis was minimal, although 2 patients showed elevated serum catecholamine levels in the acute phase. Each patient underwent serial cardiac radionuclide single-photon emission computed tomography of myocardial functional sympathetic innervation, fatty acid metabolism and perfusion using I-123-metaiodobenzyl-guanidine (MIBG), I-123-β-metyl-iodophenyl pentadecanoic acid (BMIPP) and thallium-201 (201Tl), respectively. In the acute phase, MIBG and BMIPP imaging showed an uptake defect in the apical region, whereas 201Tl uptake was mildly decreased. When assessed semi-quantitatively, the MIBG images had higher defect scores from the acute phase throughout the year of observation compared with BMIPP, and 201Tl. These observations suggest that the primary cause of ampulla cardiomyopathy is related to a disturbance of the cardiac sympathetic innervation. (Jpn Circ J 2001; 65: 349 - 352)
著者
Naoshi KONDO Makoto KURAMOTO Hiroshi SHIMIZU Yuichi OGAWA Mitsutaka KURITA Takahisa NISHIZU Vui Kiong CHONG Kazuya YAMAMOTO
出版者
Asian Agricultural and Biological Engineering Association
雑誌
Engineering in Agriculture, Environment and Food (ISSN:18818366)
巻号頁・発行日
vol.2, no.2, pp.54-59, 2009 (Released:2009-04-04)
参考文献数
14

As basic research to develop a machine vision system to detect rotten mandarin orange, the extraction and identification of fluorescent substances contained in rotten parts of mandarin orange were conducted, and the excitation and fluorescence wavelengths of the substance were determined. Although it has been reported that damaged orange fruit skins are often fluoresced by UV light, it was suggested that fluorescent substances exist not only in the rotten parts of skins but also the normal parts of skins from this research. The fluorescent substances were extracted from 1kg of mandarin peel, and NMR analysis and mass spectrometry were conducted. From this experiment, it was found that the fluorescent substance was quite possibly heptamethylflavone and that the excitation and fluorescent wavelengths of one of the substances were 360 to 375nm and 530 to 550nm, respectively.