著者
Koji Inagaki Yoshiyuki Yamashita
出版者
The Society of Chemical Engineers, Japan
雑誌
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN (ISSN:00219592)
巻号頁・発行日
vol.50, no.2, pp.136-141, 2017-02-20 (Released:2017-02-20)
参考文献数
10

Simulated moving-bed chromatography (SMBC) separation of a solution containing three different saccharides was investigated by real-time, inline monitoring of the concentration of each saccharide with Fourier transform near-infrared spectroscopy (FT-NIRS). We built partial least squares (PLS) regression models to estimate the saccharide concentrations based on preprocessed spectral data in the wavenumber range 6,100–5,440 cm−1 that excludes the water absorption band. To verify the calibration model, we performed separation of the raw material solution of the test set using SMBC, and confirmed that the predicted concentration of each saccharide from the calibration model corresponds well with the actual measured concentration of each saccharide obtained by HPLC. The collection range can be adjusted online using the monitoring values in order to maximize the purity and yield of the target saccharides.
著者
Naokazu Sato Koji Inagaki Masahiro Takanashi Reiko Muto Noritoshi Kato Shoichi Maruyama Toshiyuki Akahori
出版者
The Japanese Society of Internal Medicine
雑誌
Internal Medicine (ISSN:09182918)
巻号頁・発行日
pp.1107-22, (Released:2023-02-15)
参考文献数
27

Myoglobin is a well-known cause of acute kidney injury (AKI) due to rhabdomyolysis. However, whether or not removing serum myoglobin by on-line hemodiafiltration (OHDF) improves the kidney function remains unclear. We herein report a patient with a history of methamphetamine abuse who developed AKI due to rhabdomyolysis. A urinalysis and blood collection results obtained before and after OHDF demonstrated that OHDF improved the kidney function by removing a large amount of serum myoglobin rather than via urinary excretion. In conclusion, OHDF may prevent AKI progression effectively when the urine volume is insufficient.
著者
Reiko Muto Koji Inagaki Naokazu Sato Tetsuro Sameshima Yuka Nagakura Satoshi Baba Noritoshi Kato Shoichi Maruyama Toshiyuki Akahori
出版者
The Japanese Society of Internal Medicine
雑誌
Internal Medicine (ISSN:09182918)
巻号頁・発行日
pp.4731-20, (Released:2020-08-12)
参考文献数
32
被引用文献数
2

The relationship between anti-neutrophil cytoplasmic antibody (ANCA) titer levels and relapse risk in patients with ANCA-associated vasculitis (AAV) following clinical remission remains controversial. We herein report a case showing ectopic relapse of AAV in the pituitary with no ANCA elevation after renal remission. Magnetic resonance imaging revealed an enlarged pituitary gland. A pituitary biopsy showed geographic necrosis with multinucleated giant cells. We diagnosed this case as relapse of AAV in the pituitary. One month after rituximab therapy, the pituitary gland volume had decreased. The intensification of therapy due to the possibility of vasculitis relapse may facilitate better control of AAV.