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111.
Hironori Tsujimoto Hiroyuki Horiguchi Risa Takahata Satoshi Ono Yoshihisa Yaguchi Shinsuke Nomura Nozomi Ito Manabu Harada Hiromi Nagata Yusuke Ishibashi Keita Kouzu Satoshi Tsuchiya Yujiro Itazaki Seiichiro Fujishima Yoji Kishi Hideki Ueno 《Journal of gastroenterology and hepatology》2020,35(5):788-794
112.
Hiromi Tateno MD PhD Ryuji Sakakibara MD PhD Shunsuke Shiina BSci Hirokazu Doi PhD Fuyuki Tateno MD PhD Mitsutoshi Sato PhD Tohru Masaka PhD Masahiko Kishi MD PhD Yohei Tsuyusaki MD Yosuke Aiba MD Tsuyoshi Ogata MSc Yasuo Suzuki MD PhD 《Journal of the American Geriatrics Society》2015,63(11):2416-2418
113.
114.
Protective effects of coenzyme q(10) on decreased oxidative stress resistance induced by simvastatin 总被引:1,自引:1,他引:1
Kettawan A Takahashi T Kongkachuichai R Charoenkiatkul S Kishi T Okamoto T 《Journal of Clinical Biochemistry and Nutrition》2007,40(3):194-202
The effects of simvastatin, an inhibitor of 3-hydroxy-3-methylglutaryl CoA reductase (HMG-CoA reductase), on oxidative stress resistance and the protective effects of coenzyme Q (CoQ) were investigated. When simvastatin was administered orally to mice, the levels of oxidized and reduced CoQ(9) and CoQ(10) in serum, liver, and heart, decreased significantly when compared to those of control. The levels of thiobarbituric acid reactive substances induced by Fe(2+)-ascorbate in liver and heart mitochondria also increased significantly with simvastatin. Furthermore, cultured cardiac myocytes treated with simvastatin exhibited less resistance to oxidative stress, decreased time to the cessation of spontaneous beating in response to H(2)O(2) addition, and decreased responsiveness to electrical field stimulation. These results suggested that oral administration of simvastatin suppresses the biosynthesis of CoQ, which shares the same biosynthesis pathway as cholesterol up to farnesyl pyrophosphate, thus compromising the physiological function of reduced CoQ, which possesses antioxidant activity. However, these undesirable effects induced by simvastatin were alleviated by coadministering CoQ(10) with simvastatin to mice. Simvastatin also reduced the activity of NADPH-CoQ reductase, a biological enzyme that converts oxidized CoQ to the corresponding reduced CoQ, while CoQ(10) administration improved it. These findings may also support the efficacy of coadministering CoQ(10) with statins. 相似文献
115.
Enhancement of ultrasound-induced apoptosis and cell lysis by echo-contrast agents 总被引:10,自引:0,他引:10
Feril LB Kondo T Zhao QL Ogawa R Tachibana K Kudo N Fujimoto S Nakamura S 《Ultrasound in medicine & biology》2003,29(2):331-337
To determine the effects of echo-contrast agents (ECAs) on ultrasound (US)-induced apoptosis and cell lysis, human myelomonocytic lymphoma U937 cells in suspension were exposed to 1 MHz continuous waves US for 1 min at an intensity of 0.5, 1.0, 2.0 or 4.0 W/cm(2) with or without non-shell type ECA, Levovist (2 mg/ml), and shell type, Optison (1 microl/ml) or YM454 (1 microl/ml). Levovist minimally enhanced the US-induced apoptosis at 1.0 W/cm(2) while Optison and YM454 did at 2.0 and 4.0 W/cm(2), as detected by flow cytometry. Cell lysis was also augmented when Levovist was combined with US at 2.0 W/cm(2), and when Optison was combined with US at 2.0 and 4.0 W/cm(2). YM454 showed the highest rate of enhanced cell lysis at 1.0, 2.0 and 4.0 W/cm(2). Therefore, this study shows that Optison and YM454 are effective in augmenting the US-induced cell killing, but not Levovist. Another result indicates that cavitation plays a role in the augmented effects and that inertial cavitation appears necessary for Optison and YM454 to effect their actions. In addition, results show that the rate of apoptosis is lower in the presence of ECAs with higher free radical scavenging activity, suggesting a possible role for free radicals in apoptosis. These findings suggest that some ECAs have potential to be adjuncts in cases wherein augmented US-induced cell killing is needed, such as in cancer therapy with US. 相似文献
116.
Nonredundant roles for CD1d-restricted natural killer T cells and conventional CD4+ T cells in the induction of immunoglobulin E antibodies in response to interleukin 18 treatment of mice 总被引:2,自引:0,他引:2 下载免费PDF全文
117.
Atsushi Miyamoto Atsuko Kurosaki Shuhei Moriguchi Yui Takahashi Kazumasa Ogawa Kyoko Murase Shigeo Hanada Hironori Uruga Hisashi Takaya Nasa Morokawa Takeshi Fujii Junichi Hoshino Kazuma Kishi 《Respiratory investigation》2019,57(2):140-149
Background
This study aimed to determine the radiologic predictors and clarify the clinical features related to survival in patients with combined pulmonary fibrosis and emphysema (CPFE) and lung cancer.Methods
We retrospectively reviewed the medical chart data and high-resolution computed tomography (HRCT) findings for 81 consecutive patients with CPFE and 92 primary lung cancers (70 men, 11 women; mean age, 70.9 years). We selected 8 axial HRCT images per patient, and visually determined the normal lung, modified Goddard, and fibrosis scores. Multivariate analysis was performed using the Cox proportional hazards regression model.Results
The major clinical features were a high smoking index of 54.8 pack-years and idiopathic pulmonary fibrosis (n = 44). The major lung cancer profile was a peripherally located squamous cell carcinoma (n = 40) or adenocarcinoma (n = 31) adjacent to emphysema in the upper/middle lobe (n = 27) or fibrosis in the lower lobe (n = 26). The median total normal lung, modified Goddard, and fibrosis scores were 10, 8, and 8, respectively. TNM Classification of malignant tumors (TNM) stage I, II, III, and IV was noted in 37, 7, 26, and 22 patients, respectively. Acute exacerbation occurred in 20 patients. Multivariate analysis showed that a higher normal lung score and TNM stage were independent radiologic and clinical predictors of poor survival at the time of diagnosis of lung cancer.Conclusions
A markedly reduced area of normal lung on HRCT was a relevant radiologic predictor of survival. 相似文献118.
Cutaneous squamous cell carcinoma,thyroid cancer and Langerhans cell histiocytosis in a patient with X‐linked recessive Mendelian susceptibility to mycobacterial diseases with a nuclear factor‐κB essential modifier mutation 下载免费PDF全文
Yuta Inoue Akira Shimizu Mariko Suto Chikako Kishi Ayumi Takahashi Masahito Yasuda Mayuko Iijima Hirokazu Arakawa Osamu Ishikawa 《The Journal of dermatology》2018,45(8):1017-1019
Nuclear factor (NF)‐κB essential modifier (NEMO), also known as IκB kinase subunit‐γ (IKKγ), is a pivotal molecule in the NF‐κB signaling pathway. Mutations of NEMO cause incontinentia pigmenti and X‐linked ectodermal dysplasia with immunodeficiency. Mendelian susceptibility to mycobacterial diseases (MSMD), which confers an almost selective predisposition to mycobacterial infection, is also caused by NEMO mutations. We herein report the first case of a patient with X‐linked recessive (XR) MSMD who developed cutaneous squamous cell carcinoma, thyroid cancer and Langerhans cell histiocytosis. The relationship between NEMO mutation and oncogenesis is discussed. 相似文献
119.
Aida Y Shibata Y Osaka D Abe S Inoue S Fukuzaki K Tokairin Y Igarashi A Yamauchi K Nemoto T Nunomiya K Kishi H Sato M Watanabe T Konta T Kawata S Kato T Kubota I 《International journal of medical sciences》2011,8(6):470-478
Background: Tissue hypoxia induces the degradation of adenosine triphosphate, resulting in the production of uric acid (UA). Patients with chronic obstructive pulmonary disease (COPD) have been reported to have high serum levels of UA (sUA), compared with control subjects. However, the relationship between sUA levels and spirometric measures has not been investigated in detail in a general population.Methods: Subjects aged 40 years or older (n = 2,917), who had participated in a community-based annual health check in Takahata, Japan, in 2004 and 2005, were enrolled in the study. These subjects performed spirometry, their blood pressure was measured, and a blood sample was taken.Results: sUA levels were significantly higher in males than in females. Percent predicted forced vital capacity [FVC %predicted] (r = -0.13) and forced expiratory volume in 1 s [FEV1 %predicted] (r = -0.118) were inversely correlated with sUA levels in females but not in males. Univariate regression analysis indicated that age, body mass index (BMI), ethanol intake, mean blood pressure (BP), and serum creatinine (sCr) were significantly associated with sUA levels in males. In females, age, BMI, mean BP, hemoglobin A1c, sCr, FVC %predicted, and FEV1 %predicted were significantly associated with sUA levels. Multiple linear regression analysis showed that for both genders, FVC %predicted and FEV1 %predicted were predictive for sUA levels, independently of the other clinical parameters. Subjects with lung restriction had higher sUA levels than subjects without lung restriction. In addition, subjects with moderate and severe airflow limitation had higher sUA levels than subjects without airflow limitation or those with mild airflow limitation.Conclusion: FVC %predicted and FEV1 %predicted were significantly associated with sUA levels in a general population. 相似文献
120.
Selective elimination of double-positive immature thymocytes by a thymic epithelial cell line 总被引:6,自引:0,他引:6
M Nakashima K Mori K Maeda H Kishi K Hirata M Kawabuchi T Watanabe 《European journal of immunology》1990,20(1):47-53
A cloned epithelial cell line, TEL-2, has been established from the stroma tissues of normal mouse thymus. Incubation of mouse thymocytes on TEL-2 cells resulted in the selective elimination of double-positive (CD4+CD8+) cells from the culture, whereas single-positive (CD4+CD8- or CD4-CD8+) thymocytes remaining in the culture were concentrated in non-integrated cell population. The CD3- or CD3 low-positive thymocytes were also eliminated by the TEL-2 cells from the culture, followed by the concentration of CD3 high-positive cells in the culture. Only intact viable thymocytes were integrated into TEL-2 cells. Electron microscopic examination showed that the integrated cells into TEL-2 cytoplasm were gradually degenerated. Mature single-positive T cells, mature B cells or double-negative thymocytes were not integrated into TEL-2 cells. The TEL-2 cell may provide information on the mechanism of selective disappearance of double-positive immature cells from the thymus. 相似文献