著者
亀井 康富 江原 達弥 高橋 真由美 小川 佳宏
出版者
公益社団法人 日本農芸化学会
雑誌
化学と生物 (ISSN:0453073X)
巻号頁・発行日
vol.48, no.12, pp.839-843, 2010-12-01 (Released:2011-12-01)
参考文献数
32
被引用文献数
1

これまで遺伝素因によるところが大きいと考えられてきた「太りやすい」体質の原因に,栄養環境を含めた環境因子が少なからず影響を与えていることが明らかとなりつつある.胎児期~新生児期は器官が形成される可塑性の高い時期であり,この時期の栄養状態や摂取する食品成分により成人期の肥満や生活習慣病の易感受性が決定される可能性がある.ここでは,代謝疾患である生活習慣病のエピジェネティクス制御に関する最近の研究の動向を概説し,今後を展望する.
著者
斎藤 博久
出版者
日本小児アレルギー学会
雑誌
日本小児アレルギー学会誌 (ISSN:09142649)
巻号頁・発行日
vol.19, no.5, pp.729-736, 2005-12-31 (Released:2010-08-05)
参考文献数
34

遺伝子が転写されるためには転写因子の存在のほか, 転写因子と結合する部位がクロマチンとして結合可能な立体構造をとる必要がある. このクロマチンの構造はエピジェネティックなメカニズムつまりDNAメチル化とヒストン修飾により調節されている. 従来, 遺伝子解析研究といえばDNA配列の個人差を研究する遺伝子配列解析と組織や細胞のmRNAを定量する遺伝子発現解析の2通りの研究手法が主流であった. エピジェネティック研究はこの2つの研究手法の中間に位置づけられる研究分野である. 従来の遺伝子解析手法では得られなかったアレルギー性炎症や組織リモデリングに関わる機序解明が期待できる.
著者
木本 哲夫 山本 祐規子 日野 恵子 古谷 聡美 阿賀 創 橋本 貴治 花谷 利春 新井 成之 池田 雅夫 福田 恵温 栗本 雅司
出版者
日本生薬学会
雑誌
Natural medicines = 生薬學雜誌 (ISSN:13403443)
巻号頁・発行日
vol.53, no.2, pp.72-79, 1999
参考文献数
9
被引用文献数
5

From the plant commonly known as Indigo Plant (Polygonum tinctorium Lour., Shimane, Japan) , Tryptanthrin was isolated which had cytotoxic effects on malignant tumor cells. The cytotoxic effects on human solid cancer cells, leukemia cells, murine glioblastoma cell, colon cancer and malignant melanoma cells in vitro were assayed. Tryptanthrin induced remarkable necrotic and apoptotic changes in the malignant tumor cells.
出版者
早稲田大学法学会
雑誌
早稲田法学 (ISSN:03890546)
巻号頁・発行日
vol.76, no.4, pp.249-284, 2001-03-31
著者
Lee Sang-Min Byun Hi-Ryong Tanaka Hiroshi L.
出版者
American Meteorological Society
雑誌
Journal of applied meteorology and climatology (ISSN:15588424)
巻号頁・発行日
vol.51, no.6, pp.1087-1098, 2012-06
被引用文献数
29 1

The drought climate of Japan from 1902 to 2009 was analyzed using an effective drought index (EDI). Drought regions were identified by hierarchical cluster analysis using drought characteristics (duration, severity, and onset and end dates) obtained from 50 observation stations. The results indicated that droughts could be divided into four groups (G1–G4) that reflected the local climate. The four groups were related to precipitation as follows. The summer rainy season affected groups G2–G4, in which droughts occurred mainly during spring and summer and were relieved before and after the rainy season. The G1 group was not affected by the summer rainy season and droughts were spread evenly throughout the year; it even had cases of droughts relieved by winter snow. All groups included dry conditions over the 108-yr period, and the driest conditions occurred in the late twentieth century. The statistical analysis of drought data showed that a total of 23 country-wide droughts occurred and that the most extreme droughts occurred in 1939–41 and 1984–85, with an EDI of −1.55. In addition, four dry seasons (1939–45, 1997–98, 1994–97, and 2005–09) were found using regime shift analysis. Regional droughts occurred 54, 54, 49, and 59 times in groups G1–G4, respectively. On average, short-term droughts with a duration shorter than 6 months occurred 3.5 times per decade, whereas long-term droughts extending over 1 yr occurred 0.3 times per decade. The drought duration and intensity were used to calculate the statistical return period of country-wide droughts. The 1939–41 drought had the longest return period, at 104.7 yr. The 1987–88 and 1995–97 droughts had return periods of 65.9 and 65.5 yr, respectively.
著者
Nagao M Iso H Yamagishi K Date C Tamakoshi A the JACC Study Group
出版者
Nature Publishing Group
雑誌
European journal of clinical nutrition (ISSN:09543007)
巻号頁・発行日
vol.66, no.6, pp.687-693, 2012-06
被引用文献数
60

BACKGROUND/OBJECTIVES:Although high or low (no) meat consumption was associated with elevated or reduced mortality from cardiovascular disease, respectively, few studies have investigated the association between moderate meat consumption and cardiovascular disease. We aimed to evaluate the associations between moderate meat consumption and cardiovascular disease mortality.SUBJECTS/METHODS:We conducted a prospective cohort study of 51,683 Japanese (20,466 men and 31,217 women) aged 40-79 years living in all of Japan (The Japan Collaborative Cohort Study; JACC Study). Consumptions of meat (beef, pork, poultry, liver and processed meat) were assessed via a food frequency questionnaire administrated at baseline survey. Hazard ratios (HRs) of mortality from cardiovascular disease were estimated from Cox proportional hazards regression models according to quintiles of meat consumption after adjustment for potential confounding variables.RESULTS:During 820,076 person-years of follow-up, we documented 2685 deaths due to total cardiovascular disease including 537 ischemic heart diseases and 1209 strokes. The multivariable HRs (95% confidence interval) for the highest versus lowest quintiles of meat consumption (77.6 versus 10.4 g/day) among men were 0.66 (0.45-0.97) for ischemic heart disease, 1.10 (0.84-1.43) for stroke and 1.00 (0.84-1.20) for total cardiovascular disease. The corresponding HRs (59.9 versus 7.5 g/day) among women were 1.22 (0.81-1.83), 0.91 (0.70-1.19) and 1.07 (0.90-1.28). The associations were similar when the consumptions of red meat, poultry, processed meat and liver were examined separately.CONCLUSION:Moderate meat consumption, up to ~100 g/day, was not associated with increased mortality from ischemic heart disease, stroke or total cardiovascular disease among either gender.
著者
原 如宏
出版者
日経BP社
雑誌
日経パソコン (ISSN:02879506)
巻号頁・発行日
no.648, pp.95-98, 2012-04-23

1通ずつの表示に変更/IEよりChromeがお薦め/CcやBccも簡単/Ccを含めて、全員に返信
著者
井口 将秀 千田 豊 中嶋 秀夫 小川 剛史 片山 義紀 小方 大成 峯村 敏幸 宮部 圭介 渡海 大輔 新見 健一郎
出版者
公益社団法人 低温工学・超電導学会 (旧 社団法人 低温工学協会)
雑誌
低温工学 (ISSN:03892441)
巻号頁・発行日
vol.47, no.3, pp.193-199, 2012-03-25 (Released:2012-07-04)
参考文献数
11
被引用文献数
5 2

The Japan Atomic Energy Agency (JAEA) has conducted activities in Japan since March 2009 in order to establish the manufacturing procedure for the ITER toroidal field (TF) coil structures. A TF coil structure consists of a TF coil case and components. The activities include ensuring that the structural materials and welding procedure comply with the Japan Society of Mechanical Engineers (JSME) code for fusion devices, and demonstrating the manufacturing method and procedures using full-scale segments of the TF coil structure. From the results of these activities, the JAEA confirmed that the quality control method of actual series TF coil structures complies with the JSME code. Therefore, the quality of structural materials and weld joints using gas tungsten arc welding (GTAW) satisfy the ITER requirements. In addition, the JAEA obtained knowledge regarding the welding deformation of the actual TF coil structures. This paper describes the results of these compliance and development activities for ITER TF coil structures.

1 0 0 0 OA 天気図

著者
中央気象台 編
出版者
中央気象台
巻号頁・発行日
vol.昭和12年7月 至9月, 1938