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21.
Hiroshi Furukawa Shomi Oka Aya Kawasaki Kota Shimada Shoji Sugii Takashi Matsushita Atsushi Hashimoto Akiko Komiya Naoshi Fukui Kouji Kobayashi Atsumu Osada Atsushi Ihata Yuya Kondo Tatsuo Nagai Keigo Setoguchi Akiko Okamoto Akira Okamoto Noriyuki Chiba Eiichi Suematsu Hajime Kono Masao Katayama Shunsei Hirohata Takayuki Sumida Kiyoshi Migita Minoru Hasegawa Manabu Fujimoto Shinichi Sato Shouhei Nagaoka Kazuhiko Takehara Shigeto Tohma Naoyuki Tsuchiya 《PloS one》2016,11(4)
ObjectiveSeveral studies on associations between human leukocyte antigen (HLA) allele frequencies and susceptibility to systemic sclerosis (SSc) have been reported. Anti-centromere antibodies (ACA) and anti-topoisomerase I antibodies (ATA) are found in SSc patients. Here, we sought to identify HLA alleles associated with SSc in Japanese, and explored their associations with SSc phenotypes including the presence of autoantibodies.MethodsAssociations of HLA-DRB1, DQB1, and DPB1 were analyzed in 463 Japanese SSc patients and 413 controls.ResultsWe found that DRB1*13:02 (P = 0.0011, Pc = 0.0319, odds ratio [OR] 0.46, 95% confidence interval [CI] 0.29–0.73), DRB1*14:06 (P = 6.60X10-5, Pc = 0.0020, OR 0.05, 95%CI 0.01–0.41), DQB1*03:01 (P = 0.0009, Pc = 0.0150, OR 0.56, 95%CI 0.40–0.79), and DPB1*02:01 (P = 5.16X10-6, Pc = 8.77X10-5, OR 0.52, 95%CI 0.39–0.69) were protectively associated with SSc. In addition, these four alleles seemed to be independently associated with the protection against the susceptibility of SSc. On the other hand, we could not find predisposing alleles for overall SSc. With respect to SSc subsets, a tendency for these four alleles to be protectively associated was observed. However, there was a significant association between DRB1*01:01, DRB1*10:01, DQB1*05:01, and DPB1*04:02 and the susceptibility to SSc with ACA. On the other hand, the presence of DRB1*15:02, DQB1*06:01, DPB1*03:01, and DPB1*09:01 was associated with SSc with ATA.ConclusionThus, the present study has identified protective associations of the four HLA class II alleles with overall Japanese SSc and predisposing associations of HLA class II alleles with Japanese SSc subsets. 相似文献
22.
Junichi Satoh Hiroyuki Koshino Kouta Sekino Shinsaku Ito Ryo Katsuta Kouji Takeda 《Bioscience, biotechnology, and biochemistry》2016,80(2):363-367
A new compound in cucumber, Cucumis sativus, nutrient solution that appears under iron-deficient conditions, but not under ordinary culture conditions, has been revealed by HPLC analysis. The chemical structure of this compound was identified using LC-MS and NMR techniques as that of 4′-ketoriboflavin. This is the first report to show that 4′-ketoriboflavin can be found in metabolites from organisms. 相似文献
23.
Kouji Ohnishi Yasunao Hattori Kazuya Kobayashi Kenichi Akaji 《Bioorganic & medicinal chemistry》2019,27(2):425-435
A non-prime site substituent and warheads combined with a decahydroisoquinolin scaffold was evaluated as a novel inhibitor for severe acute respiratory syndrome (SARS) chymotrypsin-like protease (3CLpro). The decahydroisoquinolin scaffold has been demonstrated to be an effective hydrophobic center to interact with S2 site of SARS 3CLpro, but the lack of interactions at S3 to S4 site is thought to be a major reason for the moderate inhibitory activity. In this study, the effects of an additional non-prime site substituent on the scaffold as well as effects of several warheads are evaluated. For the introduction of a desired non-prime site substituent, amino functionality was introduced on the decahydroisoquinolin scaffold, and the scaffold was constructed by Pd(II) catalyzed diastereoselective ring formation. The synthesized decahydroisoquinolin inhibitors showed about 2.4 times potent inhibitory activities for SARS 3CLpro when combined with a non-prime site substituent. The present results indicated not only the expected additional interactions with the SARS 3CLpro but also the possibility of new inhibitors containing a fused-ring system as a hydrophobic scaffold and a new warhead such as thioacetal. 相似文献
24.
Komatsu K Wakatsuki S Yamada S Yamamura K Miyazaki J Sehara-Fujisawa A 《Developmental biology》2007,303(1):82-92
The heart is divided into four chambers by membranous septa and valves. Although evidence suggests that formation of the membranous septa requires migration of neural crest cells into the developing heart, the functional significance of these neural crest cells in the development of the endocardial cushion, an embryonic tissue that gives rise to the membranous appendages, is largely unknown. Mice defective in the protease region of Meltrin beta/ADAM19 show ventricular septal defects and defects in valve formation. In this study, by expressing Meltrin beta in either endothelial or neural crest cell lineages, we showed that Meltrin beta expressed in neural crest cells but not in endothelial cells was required for formation of the ventricular septum and valves. Although Meltrin beta-deficient neural crest cells migrated into the heart normally, they could not properly fuse the right and left ridges of the cushion tissues in the proximal outflow tract (OT), and this led to defects in the assembly of the OT and AV cushions forming the ventricular septum. These results genetically demonstrated a critical role of cardiac neural crest cells expressing Meltrin beta in triggering fusion of the proximal OT cushions and in formation of the ventricular septum. 相似文献
25.
Takeshi Kikko Daisuke Ishizaki Taiga Yodo Shizuo Aino Kunihiko Kuwamura Haruo Okamoto Morihito Nemoto Kazuki Yoneda Nobuyuki Oue Akihisa Sakai Yasuhiro Fujioka Yoshiaki Kai Takuya Sato Kouji Nakayama 《Journal of fish biology》2019,95(2):668-672
Otolith growth increments in wild-caught alizarin complex one (ALC)-marked honmoroko Gnathopogon caerulescens were examined to verify the veracity of the age determination method in cyprinids. ALC-marked G. caerulescens recaptured from their natural environment had lapilli increment counts outside the ALC ring mark that had formed on a daily basis during the juvenile stage. This apparently being the first direct evidence of daily periodicity of otolith increment formation in wild-caught cyprinids. 相似文献
26.
Asadulghani Nitta K Kaneko Y Kojima K Fukuzawa H Kosaka H Nakamoto H 《Archives of microbiology》2004,182(6):487-497
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