著者
後藤 忍 江口 洋
出版者
一般社団法人 日本土壌肥料学会
雑誌
日本土壌肥料学雑誌 (ISSN:00290610)
巻号頁・発行日
vol.68, no.6, pp.640-644, 1997-12-05 (Released:2017-06-28)
参考文献数
9
被引用文献数
5

The release rates of Ca, Mg and K from six green manure (clotararia, pigeon pea, sesbania, guinia grass, sorghum and oats) and three composts prepared from poultry manure, cattle feces and sugar-cane leaves were measured. Green manure and composts wrapped in glass-fiber filter paper were placed in Ap horizon of a Dark Red soil and analyzed for Ca, Mg and K after 1, 3, 6 and 12 months. In addition, the chemical forms of Ca, Mg and K in the original organic materials were characterized by successive extraction with water, 1 tool L^<-1> NaCl, 2% acetic acid and 0.6 mol L^<-1>HCl. For all the materials, more than 90% of K and Mg was water soluble and water plus 1 mol L^<-1> NaCl soluble, respectively, whereas the water-soluble fraction was variable for Ca, ranging from 4 to 68%. The release rate followed the order of K>Mg>Ca for all the materials, reflecting the proportion of water-soluble fraction. For three bases, the release rate was higher for the green manure than for the composts. The amount of K released from the materials in the first 1 month was highly correlated with the water-soluble K, giving the regression of y=1.04χ-0.04 (r=0.99^<**>), where χ and y stand for the amounts of water-soluble K and released K, respectively. Similar relations with lower correlation coefficients were found for Mg, y=1.02χ+0.03 (r=0.84^<**>), and Ca, y-0.67χ+0.08 (r=0.78^*).
著者
武田 則之 安田 圭吾 林 慎 後藤 忍 青山 かおり 伊藤 康文 堀谷 登美子 北田 雅久 野津 和巳 岡 暢之 加藤 譲 三浦 清
出版者
THE JAPAN DIABETES SOCIETY
雑誌
糖尿病 (ISSN:0021437X)
巻号頁・発行日
vol.32, no.10, pp.767-771, 1989

症例は23歳女性.1983年9月一過性のthyrotoxicosisで受診.禰漫性の甲状腺腫を認め, 抗甲状腺マイクロゾーム抗体 (MCHA) 陽性.759経口糖負荷試験で血糖前値137mg/d<I>l</I>, 2時間値271mg/d<I>l</I>.1年後妊娠し, 1984年12月帝王切開で女児出産.妊娠中free thyroxine値は正常でMCHAの抗体価は低下した.妊娠中インスリンを使用したが, 産後にSU剤に変更出産3ヵ月後にpostpartum thyroiditisによると考えられるthyrotoxicosisと糖尿病性ケトアシドーシス (DKA) を同時に発症.DKA改善後も1日30単位以上のインスリンを必要とした.抗ラ氏島細胞抗体 (ICA) は妊娠中も出産後も持続性に陽性.血中C-peptide基礎値は妊娠18週0.4ng/m<I>l</I>, 26週0.7ng/m<I>l</I>であったが, DKA発症以後は測定感度以下で, グルカゴン試験時のC-peptide反応頂値も0.7ng/m<I>l</I>と低値HLADR4を有していた.本例はNIDDMの病像で発見され, 産後にIDDMの病像が顕性化した症例と考えられた.妊娠, 出産に伴う免疫機能の変動と, IDDMの進展との関連, が示唆された.