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排序方式: 共有1063条查询结果,搜索用时 15 毫秒
41.
Yosuke Matsuo Kentaro Takahara Yuki Sago Masayo Kushiro Hitoshi Nagashima Hiroyuki Nakagawa 《Toxins》2015,7(9):3700-3714
The existence of glucose conjugates of fumonisin B2 (FB2) and fumonisin B3 (FB3) in corn powder was confirmed for the first time. These “bound-fumonisins” (FB2 and FB3 bound to glucose) were identified as N-(1-deoxy-d-fructos-1-yl) fumonisin B2 (NDfrc-FB2) and N-(1-deoxy-d-fructos-1-yl) fumonisin B3 (NDfrc-FB3) respectively, based on the accurate mass measurements of characteristic ions and fragmentation patterns using high-resolution liquid chromatography-Orbitrap mass spectrometry (LC-Orbitrap MS) analysis. Treatment on NDfrc-FB2 and NDfrc-FB3 with the o-phthalaldehyde (OPA) reagent also supported that d-glucose binding to FB2 and FB3 molecules occurred to their primary amine residues. 相似文献
42.
Satoshi Yamaji Shinobu Imai Fumio Saito Hiroshi Yagi Toshio Kushiro Takahisa Uchiyama 《Circulation journal》2006,70(2):190-197
BACKGROUND: Computed tomography (CT) is widely used in clinical practice, but there has not been a detailed report of its effect on the functioning of pacemakers. METHODS AND RESULTS: During CT, ECGs were recorded in 11 patients with pacemakers and the electromagnetic field in the CT room was also measured. The effect of CT on a pacemaker was also investigated in a human body model with and without shielding by rubber or lead. Transient malfunctions of pacemakers during CT occurred in 6 of 11 patients. The model showed that malfunctioning of the pacemaker was induced by CT scanning and this was prevented by lead but not by rubber. The alternating electrical field was 150 V/m on the CT scanning line, which was lower than the level influencing pacemaker functions. The alternating magnetic field was 15 muT on the CT scanning line, which was also lower than the level influencing pacemaker functions. CONCLUSIONS: Malfunctions of the pacemaker during CT may be caused by diagnostic radiant rays and although they are transient, the possibility of lethal arrhythmia cannot be ignored. 相似文献
43.
Izumida N Asano Y Doi S Wakimoto H Fukamizu S Kimura T Ueyama T Sakurada H Kawano S Sawanobori T Hiraoka M 《International journal of cardiology》2004,95(2-3):261-268
BACKGROUND: The characteristics of unique ECG findings in the Brugada syndrome have not been well explained. METHODS: To clarify their characteristics and mechanisms, body surface maps (BSM) were recorded from patients with the Brugada syndrome (13 cases; a mean age of 48 years) before and after administration of isoproterenol (ISP) or Na channel blockers (12 cases). RESULTS: ST elevation in V1-V3 was decreased by 0.1 mV or more after ISP infusion in 8 of 11 cases and elevated after Na channel blockers in 8 of 12. In ventricular activation time (VAT) isochronal map, delayed conduction was noted on upper anterior chest in 11 and on anterior left chest in two. Delayed conduction areas were decreased by ISP and expanded by Na channel blockers. QRST isointegral map showed normal findings in baseline with minimal changes after ISP or Na channel blockers. Activation recovery interval (ARI) isochronal map showed prolonged area on upper anterior chest in baseline, being reduced by ISP and expanded by Na channel blockers. ARI dispersion (ARI-d), defined as difference between the maximum and minimum value of ARI, was larger in Brugada patients than that of normal subjects in baseline, and decreased after ISP and increased after Na channel blockers. CONCLUSION: ST elevation in the Brugada syndrome is primarily caused by abnormality in depolarization rather than in repolarization. BSM can provide better information to clarify a mechanism of ECG changes adding its diagnostic value for this unique syndrome. 相似文献
44.
Kimura-Matsumoto M Ishikawa Y Komiyama K Tsuruta T Murakami M Masuda S Akasaka Y Ito K Ishiguro S Morita H Sato S Ishii T 《Atherosclerosis》2008,196(1):81-91
Secretory phospholipase A2s (sPLA2s) contribute to the hydrolysis of phospholipid. Among them, sPLA2-IIA, -V, and -X have been regarded as enhancers of lipid accumulation in arterial intima. However, the distribution and production of the other types of sPLA2 in human aortic wall remain unclear. Therefore, in this study, the distribution and production of seven types of sPLA2 including IIA, IID, IIE, IIF, III, V, and X in atherosclerosis development in the human aorta were comprehensively examined by immunohistochemistry and in situ hybridization (ISH). The extent of sPLA2s expression increased with atherosclerosis development, but only sPLA2-IIF was never observed in the normal aorta. Double-immunostaining demonstrated that sPLA2-V expression was limited to smooth muscle cells (SMCs), although the other sPLA2s were expressed in both macrophages and SMCs. ISH using sPLA2 cDNAs revealed that the expression pattern of each mRNA was consistent with the results of immunohistochemistry for each corresponding sPLA2. These results indicate that the seven types of sPLA2 are expressed with various patterns in all stages of atherosclerosis development and may play an atherogenic role through degradation of phospholipid. 相似文献
45.
Hiroyuki Hanakawa MD Yorihisa Orita MD PhD Yasuharu Sato MD PhD Soshi Takao MD PhD Hidenori Marunaka MD Tokiwa Morishita MD Yasuhiko Yamashita MD Yasutaka Hori MD Shuhei Domae MD Ikuo Inokuchi MD PhD Seiko Akagi MD Eisei Kondo MD PhD Noriko Iwaki MD Kana Motomiya MD Hirokazu Okumura MD PhD Tadashi Yoshino MD PhD Kazunori Nishizaki MD PhD 《Head & neck》2014,36(4):551-556
46.
Tomoko Omiya Yoshihiko Yamazaki Megumi Shimada Kazuko Ikeda Seiko Ishiuchi-Ishitani Yoko Sumikawa Tsuno 《AIDS care》2014,26(11):1370-1378
In developed countries, human immunodeficiency virus (HIV) has become a chronic disease. The aims of this study were to clarify the physical, social, and psychological factors affecting Japanese HIV patients in a stable condition and to identify factors related to mental health of employed and unemployed HIV patients. The target subjects were people with HIV infection who were treated as outpatients at core hospitals for acquired immune deficiency syndrome (AIDS) treatment in Japan. A questionnaire including items from the Hospital Anxiety and Depression Scale (HADS) was sent to each medical facility with a request for participation from the HIV-infected outpatients. Responses from 1199 patients were analyzed. Mental health was reportedly better in the employed patients than in the unemployed patients. The unemployed patients were more likely to have resigned from their jobs because of poor health, to have resigned voluntarily, or to have been unfairly dismissed. Once the patients stopped working because of HIV, returning to work became difficult. In the employed patients, a good workplace environment was strongly related to lower scores on HADS. Higher HADS scores were recorded for employed patients infected with HIV for six years or more. For the unemployed patients, a relationship was observed between strong feelings of stigmatization and HADS scores. Quitting a job because of an experience related to HIV status may be related to feelings of stigmatization. 相似文献
47.
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49.
Fujii Hiroyuki Tsuji Taisuke Yuba Tatsuya Tanaka Shunya Suga Yoshifumi Matsuyama Aosa Omura Ayaka Shiotsu Shinsuke Takumi Chieko Ono Seiko Horiguchi Masahito Hiraoka Noriya 《Clinical rheumatology》2020,39(11):3171-3175
Clinical Rheumatology - We treated two patients with severe respiratory failure due to coronavirus disease 2019 (COVID-19). Case 1 was a 73-year-old woman, and Case 2 was a 65-year-old-man. Neither... 相似文献
50.
Matsumoto Yorihiko Fukushima Satsuki Shimahara Yusuke Kawamoto Naonori Tadokoro Naoki Kuroda Kensuke Nakajima Seiko Watanabe Takuya Seguchi Osamu Yanase Masanobu Fukushima Norihide Shimizu Hideyuki Kobayashi Junjiro Fujita Tomoyuki 《Journal of artificial organs》2020,23(1):19-26
Journal of Artificial Organs - Hemolysis is closely related with pump thrombosis and thromboembolic events in patients with continuous flow left ventricular assist devices. We retrospectively... 相似文献