- 著者
- Chizuko Kuriyama Kouki Mori Yoshinori Nakagawa Saeko Hoshikawa Hiroshi Ozaki Sadayoshi Ito Minoru Inoue Masahiro Ohta Katsumi Yoshida
- 出版者
- The Japan Endocrine Society
- 雑誌
- Endocrine Journal (ISSN:09188959)
- 巻号頁・発行日
- pp.1009240485, (Released:2010-10-15)
- 被引用文献数
- 4 4
Red blood cell (RBC) zinc (Zn) concentration reflects a patient’s mean thyroid hormone level over the preceding several months. The aim of this study was to examine whether RBC Zn level can be used as an indicator to distinguish painless thyroiditis-associated transient hypothyroidism (TH) from permanent hypothyroidism (PH). RBC Zn level was measured in 30 untreated PH patients with Hashimoto’s thyroiditis and 7 untreated TH patients with painless thyroiditis in whom preceding transient thyrotoxicosis had been confirmed. RBC Zn concentration was significantly lower in TH patients than that in PH patients. There was a positive correlation between RBC Zn and serum TSH, and the latter was clearly lower in TH patients than that in PH patients. However, RBC Zn level was again significantly lower in TH patients than PH patients despite of the comparable serum TSH levels in both groups when RBC Zn was evaluated in patients with serum TSH levels of less than 50 mU/L. Thus TH patients could be identified with RBC Zn measurement, allowing us avoidance of unnecessarily prolonged T4 administration to them.
- 著者
- Ken SASAKI Hiroyo MORIKAWA Takashi KISHIBE Ayaka MOKAMI Toshihiko HARADA Masahiro OHTA
- 出版者
- Japan Society for Bioscience, Biotechnology, and Agrochemistry
- 雑誌
- Bioscience, Biotechnology, and Biochemistry (ISSN:09168451)
- 巻号頁・発行日
- pp.1203292864, (Released:2012-04-07)
- 参考文献数
- 15
- 被引用文献数
- 16
About 90% of the radioactive Cs in the sediment mud of a school’s swimming pool in Fukushima, Japan was removed by treatment for 3 d using the alginate immobilized photosynthetic bacterium Rhodobcater sphaeroides SSI. Even though batch treatment was carried out 3 times repeatedly, the activity of immobilized cells in removing Cs was maintained at levels of about 84% (second batch) and 78% (third batch). Cs was strongly attached to the sediment mud because, even with HNO3 treatment at pH of 2.00–1.60 for 24 h, it was not eluted into the water. Furthermore, more than 75% of the Cs could be removed without solubilization with HNO3. This suggests that the Cs attached to the sediment mud was transformed into immobilized cells via the Cs+ ion by the negative charge of the immobilized cell surface and/or the potassium transport system of the photosynthetic bacterium.