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Miyake, N.,Tsukaguchi, H.,Koshimizu, E.,Shono, A.,Matsunaga, S.,Shiina, M.,Mimura, Y.,Imamura, S.,Hirose, T.,Okudela, K.,Nozu, K.,Akioka, Y.,Hattori, M.,Yoshikawa, N.,Kitamura, A.,Cheong, H.,Kagami, S University of Chicago Press [etc.] 2015 American journal of human genetics Vol.97 No.4
The nuclear pore complex (NPC) is a huge protein complex embedded in the nuclear envelope. It has central functions in nucleocytoplasmic transport, nuclear framework, and gene regulation. Nucleoporin 107 kDa (NUP107) is a component of the NPC central scaffold and is an essential protein in all eukaryotic cells. Here, we report on biallelic NUP107 mutations in nine affected individuals who are from five unrelated families and show early-onset steroid-resistant nephrotic syndrome (SRNS). These individuals have pathologically focal segmental glomerulosclerosis, a condition that leads to end-stage renal disease with high frequency. NUP107 is ubiquitously expressed, including in glomerular podocytes. Three of four NUP107 mutations detected in the affected individuals hamper NUP107 binding to NUP133 (nucleoporin 133 kDa) and NUP107 incorporation into NPCs in vitro. Zebrafish with nup107 knockdown generated by morpholino oligonucleotides displayed hypoplastic glomerulus structures and abnormal podocyte foot processes, thereby mimicking the pathological changes seen in the kidneys of the SRNS individuals with NUP107 mutations. Considering the unique properties of the podocyte (highly differentiated foot-process architecture and slit membrane and the inability to regenerate), we propose a ''podocyte-injury model'' as the pathomechanism for SRNS due to biallelic NUP107 mutations.
Anti-tumor Promoting Activity of Some Malaysian Traditional Vegetables (Ulam)
L. Yang Mooi,A. M. Ali,A. B. Norhanom,K. Mat Salleh,A. Murakami,K. Koshimizu 한국생약학회 1999 Natural Product Sciences Vol.5 No.1
Ethanolic extracts of different parts of 10 loyal traditional vegetables (ulam) (Amarunthus gangeticus, Jussiaea linifolia, Eugenic polyantha, Trapa incisca, Trichosanthes anquina, Mangifera indica, Pachyrrhirus erosus, Barringtonia mcarostachya, Carica papaya, and Coleus tuberosus) were screened for in vitro anti-tumor promoting activity using the inhibition test of Epstein-Barr virus (EBV) activation in Raji cells induced by phorbol 12-myristate 13-acetate and sodium-n-butyrate. All the extracts were found to have strong inhibition activity toward EBV-activation, except for leaf extract of T. anquina. The extracts were non-cytotoxic to the Raji cells except for the extracts of A. gangeticus (leaves), B. mucrostachya (leaves), E. polyuntha (young leaves), and J. linifolia (leaves) where the viability of the cells were decreased significantly.
Effect to optical properties by changing the Al2O3 ratio in K2O-Al2O3-P2O5 glasses
D. Shiratori,Y. Isokawa,H. Samizo,M. Koshimizu,N. Kawaguchi,T. Yanagida 한양대학교 세라믹연구소 2019 Journal of Ceramic Processing Research Vol.20 No.4
In this study, we prepared glasses with the composition of 0.1% Ce-doped (100−x) KPO3-xAl2O3 and investigated luminescent characteristics. The glass samples with different Al2O3 ratio (x = 5, 10, 15, 20, 25, 30 and 40) were synthesized by the melt quenching method. The All samples had high transmittance (80−90%) at wavelengths longer than 350 nm except for x = 40, and by increasing the Al2O3 ratio, the transmittance of the samples was improved. From the measurements of photoluminescence (PL) decay curve, the luminescence decay time was confirmed to be typical for the 5d−4f transition of Ce3+ (~30 ns). The samples showed thermally-stimulated luminescence (TSL), and the sensitivity of dose response was confirmed to be linear in the dose range from 0.01 mGy to 1 Gy for the x = 25 and 30 samples which showed the highest sensitivity among the present samples. The scintillation spectra show the broad luminescence around 300−500 nm, and these emission intensities were increased by increasing the Al2O3 ratio.