著者

Hiroyuki Ariyasu Hiroshi Iwakura Naoichiro Yukawa Toshinori Murayama Masayuki Yokode Harue Tada Kenichi Yoshimura Satoshi Teramukai Tatsuya Ito Akira Shimizu Atsushi Yonezawa Kenji Kangawa Tsuneyo Mimori Takashi Akamizu

出版者

(社)日本内分泌学会

雑誌

Endocrine Journal (ISSN:09188959)

巻号頁・発行日

pp.EJ14-0088, (Released:2014-04-17)

被引用文献数

6 20

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The majority of patients with systemic sclerosis (SSc) have gastrointestinal (GI) tract involvement, but therapies using prokinetic agents are usually unsatisfactory. Ghrelin stimulates gastric motility in healthy human volunteers. In this study, we investigated whether ghrelin could improve gastric emptying in patients with gastrointestinal symptoms due to SSc. The study was performed in a randomized, double-blind, placebo-controlled crossover fashion on two occasions. Ten SSc patients with GI tract involvement received an infusion of either ghrelin (5.0 μg/kg) or saline, and gastric emptying rate was evaluated by 13C-acetic acid breath test. Gastric emptying was significantly accelerated by ghrelin infusion in patients with SSc (ghrelin vs. saline: 43.3 ± 11.4 min vs. 53.4 ± 5.4 min, P≡0.03). No serious adverse effects were observed. Our results suggest that ghrelin might represent a new therapeutic approach for GI tract involvement in patients with SSc.

著者

Hiroyuki Arai Shinya Yamamoto Takeshi Matsubara Takafumi Miyake Akira Tochio Akiko Mii Akira Shimizu Sachiko Minamiguchi Eri Muso Motoko Yanagita

出版者

The Japanese Society of Internal Medicine

雑誌

Internal Medicine (ISSN:09182918)

巻号頁・発行日

pp.1283-22, (Released:2023-01-15)

参考文献数

28

被引用文献数

2

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Ponatinib is a novel multi-tyrosine kinase inhibitor (TKI) with potent inhibitory activity against refractory chronic myeloid leukemia (CML). Despite its high clinical efficacy, ponatinib induces various adverse events due to its multi-target characteristic. However, renal complications associated with ponatinib are rare. A 76-year-old woman had a history of chronic myeloid leukemia (CML) resistant to imatinib and nilotinib. Our patient developed proteinuria and renal function deterioration during treatment with ponatinib but not with imatinib or nilotinib. We herein report the first case of a patient with secondary focal segmental glomerulosclerosis (FSGS) with partial glomerular collapse induced by ponatinib treatment.

著者

Keisuke Kagawa Takeru Gonai Hidenori Ichige Yutaka Fujita Iwao Terakado Akira Shimizu Tsuyoshi Iimura

出版者

The Japanese Society for Horticultural Science

雑誌

The Horticulture Journal (ISSN:21890102)

巻号頁・発行日

pp.UTD-362, (Released:2022-08-05)

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In the replanting of Japanese pear, the growth of young trees after replanting is often suppressed due to soil sickness syndrome and white root rot. Pre-planting soil disinfection by hot water drip irrigation (HWD) treatment was developed as a control technique for white root rot. In addition, it is also expected to reduce the risk of soil sickness and promote tree growth. We therefore investigated the HWD treatment of pre-planting soil to promote the growth of young trees and obtain high yields at an early stage after replanting Japanese pear. HWD treatment of the pre-planting soil accelerated the growth of young trees in the first two years after planting and increased the yield in the third year compared to untreated soil. The HWD and water treatments of soil lowered the risk of soil sickness syndrome, suggesting that washing out growth-inhibiting substances with water promoted the growth of young trees. The HWD treatment flushed out nitrate-nitrogen from the soil and temporarily increased ammonia nitrogen due to decreased nitrifying activity one day after treatment. However, the change in nitrogen in the soil did not significantly affect growth, and the pH of the soil did not change significantly before and after the treatment. This suggests that the growth-promoting effect was not solely due to changes in soil chemistry, but rather due to the reduction in the risk of soil sickness. These results suggest that HWD treatment of pre-planting soil effectively reduces the risk of soil sickness and promotes the growth of young trees during the replanting of Japanese pear.

著者

Ryo Kamata Fujio Shiraishi Shinji Takahashi Akira Shimizu Daisuke Nakajima Shiho Kageyama Takushi Sasaki Kyosuke Temma

出版者

日本毒性学会

雑誌

The Journal of Toxicological Sciences (ISSN:03881350)

巻号頁・発行日

vol.38, no.6, pp.903-912, 2013-12-01 (Released:2013-11-09)

参考文献数

27

被引用文献数

7

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In the 1950s to 1970s developed countries reported declines in populations of raptorial and fish-eating birds and dichlorodiphenyltrichloroethane (DDT) and its metabolites were considered causative substances because they accumulated significantly in the tissues of wild birds and animals. However, except for the estrogenic effects of o,p’-DDT, a minor component of commercial DDT, there has been no compelling evidence that DDT directly affects avian reproductive systems. To assess the possible impact of DDT on development and reproduction of birds, exposure experiments to the major component of commercial DDT, p,p’-DDT, and its persistent metabolite, p,p’-dichlorodiphenyldichloroethylene (DDE), were performed using Japanese quail (Coturnix japonica) eggs; the test substances (3 to 100 μg/g) were injected into the yolk prior to incubation, and hatched chicks were raised to adulthood. p,p’-DDT had no significant effects on the morphology and function of the reproductive systems, although the hatchability of treated eggs was reduced at the highest dose (100 μg/g). High doses of p,p’-DDE slightly enhanced the eggshell forming ability of female quails; eggshell mass and thickness were increased at 30 μg/g or more although no morphological changes were observed in the oviduct. Transcriptions of the CYP11A1 gene in the ovaries, and of AHR and ARNT in the livers, of adult females were significantly increased at 3 μg/g or more of p,p’-DDT. Except for low hatchability, transovarian exposure to p,p’-DDT or p,p’-DDE did not markedly impair the avian reproductive systems, but the hormonal actions of these compounds are likely to change reproductive and hepatic functions even after maturation.