著者

Ayako Saito Yoichi Takeuchi Saeko Kagaya Yoshie Ojima Hirotaka Fukami Hiroyuki Sato Ken Matsuda Tasuku Nagasawa

出版者

東北ジャーナル刊行会

雑誌

The Tohoku Journal of Experimental Medicine (ISSN:00408727)

巻号頁・発行日

vol.242, no.1, pp.53-62, 2017 (Released:2017-05-24)

参考文献数

36

被引用文献数

7

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Anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) is systemic vascular inflammation. Microscopic polyangiitis (MPA) is a major type of AAV in Japan. MPA often affects the kidneys and lungs, leading to death if untreated. Induction therapy (i.e., initial treatment) for MPA has not been optimized, although methylprednisolone and cyclophosphamide are commonly used. Recently, rituximab (RTX) (a monoclonal antibody against the protein CD20) has also been used to treat refractory AAV. RTX at 375 mg/m2/week for 4 weeks (i.e., the conventional lymphoma dosing schedule) is used, but the optimal dosing schedule is controversial. Indeed, a single-dose of RTX successfully controlled nephrotic syndrome. However, to date, the effectiveness of a single RTX dose in treating MPA has not been fully investigated in Japan. This was a retrospective observational study. Six newly diagnosed patients with MPA were initially treated with methylprednisolone and a single dose of RTX (375 mg/m2). We investigated the patients’ clinical features, as well as the efficacy and safety of RTX treatment. All patients attained remission on a tapered prednisolone dose of < 10 mg/day during the first 12 months. One patient relapsed after 12 months whereas another required hospitalization owing to infective spondyloarthritis. Adverse reactions to RTX infusion and late-onset neutropenia were not observed. Therefore, a single-dose treatment with RTX induced remission with few complications, and allowed tapering the prednisolone treatment. We conclude that a single dose of RTX is a promising induction therapy for MPA, reducing the cost associated with multiple doses.

著者

Akira Sugawara Akira Uruno Masataka Kudo Ken Matsuda Chul Woo Yang Sadayoshi Ito

出版者

The Japan Endocrine Society

雑誌

Endocrine Journal (ISSN:09188959)

巻号頁・発行日

vol.57, no.10, pp.847-852, 2010 (Released:2010-10-30)

参考文献数

37

被引用文献数

28 48

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Peroxisome proliferator-activated receptor (PPAR) γ is a nuclear hormone receptor that is trans-activated by its ligands including insulin-sensitizing thiazolidinediones. PPARγ has recently been reported to demonstrate pleiotropic beneficial effects in the vasculatures, independent of its blood glucose-lowering effects. Firstly, PPARγ ligands have been shown to lower blood pressure in both animals and human. The effect may possibly be mediated via the PPARγ-mediated inhibition of the angiotensin (Ang) II type 1 receptor expression as well as Ang II-mediated signaling pathways, which may result in the suppression of the renin-angiotensin system (RAS). Secondly, the progression of atherosclerosis was also prevented by PPARγ ligands in both animals and human. In addition to the PPARγ-mediated suppression of the RAS and the thromboxane A2 system, protective effects of PPARγ ligands on endothelial function may also be involved. Thirdly, reno-protective effects of PPARγ ligands, especially on reducing urinary albumin, have been observed in both animals and human not only in diabetic nephropathy but also in non-diabetic renal diseases. The reno-protective effects may be mediated, at least in part, via the PPARγ ligand-induced blood pressure-lowering effects, protective effects on endothelial function, and vasodilating effects on the glomerular efferent arterioles. Additionally, anti-cancer effects of PPARγ ligands have recently been reported. Taken together, usefulness and effectiveness of PPARγ ligands on lifestyle related diseases will be increasingly appreciated.

著者

Kenji Yano Ko Hosokawa Takeshi Masuoka Ken Matsuda Akiyoshi Takada Tetsuya Taguchi Yasuhiro Tamaki Shinzaburo Noguchi

出版者

The Japanese Breast Cancer Society

雑誌

Breast Cancer (ISSN:13406868)

巻号頁・発行日

vol.14, no.4, pp.406-413, 2007 (Released:2007-11-07)

参考文献数

22

被引用文献数

10

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Background: Skin-sparing mastectomy (SSM) is a type of breast cancer surgery presupposed as breast reconstruction surgery. Cosmetically, it is an extremely effective breast cancer operation because the greater part of the breast's native skin and infra-mammary fold are conserved. All cases of SSM and immediate breast reconstruction performed by the senior author during the last five years were reviewed.Methods: There are three implant options for breast reconstruction, namely, deep inferior epigastric perforator (DIEP) flap, latissimus dorsi myocutaneous (LDM) flap, and breast implant, and one of these was used for reconstruction after comprehensive evaluation.Results: From 2001 to 2005, immediate reconstructions following SSM were performed on 124 cases (128 breasts) by the same surgeon. Partial necrosis of the breast skin occurred in 4 cases of SSM. The mean follow-up was 33.6 months. During the follow-up, there was local recurrence following surgery in 3 cases. The overall aesthetic results of immediate breast reconstruction after SSM are better than those after non-SSM.Conclusion: SSM preserves the native breast skin and infra-mammary fold, and is an extremely useful breast cancer surgery for breast reconstruction. SSM is an excellent breast cancer surgical technique. We think this procedure should be considered in more facilities conducting breast reconstruction in Japan.