著者
Fredj F. Ben Han J. Irie M. Funamizu N. Ghrabi A. Isoda H.
出版者
Elsevier
雑誌
Ecotoxicology and environmental safety (ISSN:01476513)
巻号頁・発行日
vol.84, pp.54-62, 2012-10
被引用文献数
6 5

Irrigation with treated wastewater (TWW) is a vital alternative for arid and semi-arid lands but it poses pollution-risk to soil, vegetation and groundwater. Therefore, in the present study, in vitro bioassays were used to evaluate the adverse effects of TWW and irrigated-soil extract sample, on mammalian cells, with respect to heavy metal—Ni, Cd, Pb, Fe, Al-content. The heat shock protein (HSP) 47, E-screen, and transepithelial electrical resistance (TEER) assays served to investigate the stress response of treated-HSP47-transfected Chinese hamster ovary (CHO) cells, the estrogenic activity of the samples in MCF-7 breast cancer cells, and the barrier function (BF) of Caco-2 cells. Furthermore, proteomics analyses were performed to shed light on involved mechanisms and to establish pollution biomarkers. Results showed that the TWW elicited a stress response on HSP cells from 0.1% concentration while soil extract samples exhibited a stress at 1%. TWW induced an estrogenic activity at 10%; up-regulating cell proliferation and tumor-related proteins. Soil extract triggered the enhanced expression of HSP70 family proteins as survival mechanisms against their cytotoxicity toward MCF-7 cells. Moreover, depending on the concentration, 1% of soil extract from 20 cm depth (T20) resulted in a disruption of BF in Caco-2 cells involving cell metabolism, protein synthesis and tumor marker proteins, whereas, 5% of T20 induced the expression of BF-related proteins associated to heat shock, oxidative stress, cell proliferation and glycolytic metabolic pathway. These biological techniques were found to be extremely useful to evaluate the impact of wastewater reuse and to establish specific biomarkers that are common proteins for humans, other mammals and plants. Future studies should focus on exposure quantifications.
著者
A. Prysyazhnyuk A. Romanenko N. Gudzenko M. Fuzik Z. Fedorenko
出版者
CODATA
雑誌
Data Science Journal (ISSN:16831470)
巻号頁・発行日
vol.8, pp.BR6-BR12, 2009-09-24 (Released:2009-09-24)
参考文献数
17

The study goal was to investigate thyroid cancer morbidity in population groups affected by the Chernobyl catastrophe. The study period comprised 1994-2006 for clean-up workers and 1990-2006 for Chernobyl evacuees and residents of contaminated territories. A significant increase of thyroid cancer incidence was registered in all observed population groups. The most significant excess over the national level was identified in clean-up workers. This amounted to a factor of 5.9, while it was 5.5 for the evacuees and 1.7 for the residents. The highest thyroid cancer risk was observed in persons exposed to radioiodine in childhood and adolescence.
著者
田中 雅一 DEANTONI Andrea. DE ANTONI A.
出版者
京都大学
雑誌
特別研究員奨励費
巻号頁・発行日
2010

本研究は「現代の京都における死に関する宗教的象徴(シンボリズム)と境界的(リミナルな)空間」を検討することである。本年度に本研究は調査上でのデータ収集と参考研究に基づき進んだ。調査上でのデータ収集は次の三点に注目した:(1)「京都怪談夜バス」観光ツアーで参与観察(7月-9月)(2)それが訪れる心霊スポットと言われている場所での調査(3)インターネットと雑誌における「心霊スポット」についての語分析とその噂の広まり方の検討(1)ツアーに参加した上で、ツアーの構築戦略に注目し、その実践と関わっている業者、ガイドさん、そして観光客に対するインタービューを行った。観光客の中でMixiの「心霊スポット」やオカルト等に関するコミュニティに参加している方々が多いと理解した上で、Mixi上でも調査とインタービューを行った。さらに同コミュニティが準備するイベントにも参加し、参与観察によるデータ収集を行った。(2)「心霊スポット」のローカルな歴史を調べた後、居住者にインタービューを行った結果、彼らの記憶とアイデンティティ構築過程、彼らの「心霊スポット」という語に対する認識を検討した。また、京都の不動産業者に対するインタービューによって、その地域のイメージと「心霊スポット」の噂における地域の経済(主に土地の値段)に対する影響を検討した。(3)専門雑誌における京都の「心霊ポット」に対する語の分析を行った。それに、専用ソフトウエアーを用い、インターネット(ウェブサイト、Wikipedia、SNS等)における「心霊スポット」の噂の構築過程・広まり方、それによって起きる抵抗を検討した。参考研究によって、観光学と人類学に注目し、上記のデータに基づき、理論的なアプローチを検討した。主に、モノの人類学という新たな理論的なアプローチに基づき、「心霊スポット」に関わる人たちの体験に注目し、それの関係性上での構築過程を分析した。
著者
Tokiko KUSHIRO-BANKER Robert D. KEEGAN Michelle A. DeCOURCEY Tamara L. GRUBB Stephen A. GREENE Robert ARMSTRONG
出版者
公益社団法人 日本獣医学会
雑誌
Journal of Veterinary Medical Science (ISSN:09167250)
巻号頁・発行日
pp.12-0062, (Released:2012-09-14)
被引用文献数
2

The objective of this study was to evaluate glomerular filtration rate (GFR) and the cardiovascular effects of the combination of tepoxalin (TPX) and medetomidine (MED) in dogs. Six healthy dogs of either sex (5 males, 1 female), aged 2.5 ± 2.2 years and weighing 14.7 ± 4.4 kg, were studied. Each dog received four randomized treatments with a minimum of 1 week between treatments: no medication as the control group (C); MED (750 μg/m2, intravenously [IV]); TPX (10 mg/kg orally for 3 days); and MT (TPX 10 mg/kg orally for 3 days plus MED 750 μg/m2, IV). Iohexol (300 mg iodine/kg, IV) was injected in all dogs in each treatment as an indicator of GFR. Blood samples for serum iohexol clearance analysis were collected before and 1, 2, 5, 10, 15, 20, 60, 120, 240, and 360 min after the iohexol administration. Rectal temperature, heart rate, respiratory rate, and direct arterial pressure (AP) were obtained before and 5, 10, 15, 20, 60, 120, 240, and 360 min after the iohexol injection. GFR did not differ between treatments. Heart rate was significantly lower in the MED and MT groups than in C or TPX. Mean AP was significantly higher with MT than TPX, but only at 5 min after the iohexol injection. TPX, MED and the combination of these two drugs do not alter GFR. The combination has minimal effect on cardiovascular variables at these doses in healthy dogs.
著者
Brooks Rodney A. 柴田 正良
出版者
青土社
雑誌
現代思想
巻号頁・発行日
vol.18, no.3, pp.p85-105, 1990-03
被引用文献数
8
著者
Claudine A Feio Maria C Izar Silvia S Ihara Soraia H Kasmas Celma M Martins Max N Feio Luís A Maués Ney C Borges Ronilson A Moreno Rui M Póvoa Francisco A Fonseca
出版者
一般社団法人 日本動脈硬化学会
雑誌
Journal of Atherosclerosis and Thrombosis (ISSN:13403478)
巻号頁・発行日
vol.19, no.3, pp.237-245, 2012 (Released:2012-03-26)
参考文献数
29
被引用文献数
10 32

Aim: Euterpe Oleracea (açai) is a fruit from the Amazon region whose chemical composition may be beneficial for individuals with atherosclerosis. We hypothesized that consumption of Euterpe Oleracea would reduce atherosclerosis development by decreasing cholesterol absorption and synthesis.Methods: Male New Zealand rabbits were fed a cholesterol-enriched diet (0.5%) for 12 weeks, when they were randomized to receive Euterpe Oleracea extract (n = 15) or water (n = 12) plus a 0.05% cholesterol-enriched diet for an additional 12 weeks. Plasma phytosterols and desmosterol were determined by ultra-performance liquid chromatography and mass spectrometry. Atherosclerotic lesions were estimated by computerized planimetry and histomorphometry.Results: At sacrifice, animals treated with Euterpe Oleracea had lower levels of total cholesterol (p =0.03), non-HDL-cholesterol (p = 0.03) and triglycerides (p = 0.02) than controls. These animals had smaller atherosclerotic plaque area in their aortas (p = 0.001) and a smaller intima/media ratio (p = 0.002) than controls, without differences in plaque composition. At the end of the study, campesterol, β-sitosterol, and desmosterol plasma levels did not differ between groups; however, animals treated with Euterpe Oleracea showed lower desmosterol/campesterol (p = 0.026) and desmosterol/ β-sitosterol (p =0.006) ratios than controls.Conclusions: Consumption of Euterpe Oleracea extract markedly improved the lipid profile and attenuated atherosclerosis. These effects were related in part to a better balance in the synthesis and absorption of sterols.
著者
R. et A. Douady
出版者
CEDIC : F. Nathan
巻号頁・発行日
1979