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Kobayashi Y, Fujikawa T, Haruna A, Kawano R, Ozawa M, Haze T, Komiya S, Suzuki S, Ohki Y, Fujiwara A, Saka S, Hirawa N, Toya Y, Tamura K. Omega-3 Fatty Acids Reduce Remnant-like Lipoprotein Cholesterol and Improve the Ankle-Brachial Index of Hemodialysis Patients with Dyslipidemia: A Pilot Study. Medicina (Kaunas) 2023; 60:75. [PMID: 38256336 PMCID: PMC10818298 DOI: 10.3390/medicina60010075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 12/22/2023] [Accepted: 12/28/2023] [Indexed: 01/24/2024]
Abstract
Background and Objectives: Omega-3 fatty acids have potent lipid-lowering and antiplatelet effects; however, randomized controlled trials have yet to examine the effect of high-dose omega-3 fatty acid administration on peripheral artery disease (PAD) in hemodialysis patients with dyslipidemia. Therefore, this study aimed to evaluate the effects of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) on the ankle-brachial index (ABI) and remnant-like lipoprotein cholesterol (RLP-C) levels, which are indicators of PAD severity. Materials and Methods: Thirty-eight participants (mean age: 73.6 ± 12.7 years) were randomly assigned using stratified block randomization to either conventional therapy alone or conventional therapy supplemented with high-dose EPA/DHA (EPA: 1860 mg; DHA: 1500 mg) for a three-month intervention period. Patients in the conventional therapy alone group who opted to continue were provided with a low-dose EPA/DHA regimen (EPA: 930 mg; DHA: 750 mg) for an additional three months. The baseline and 3-month values for RLP-C, an atherogenic lipid parameter, and the ABI were recorded. Results: The results of the 3-month assessments revealed that the mean RLP-C changes were -3.25 ± 3.15 mg/dL and 0.44 ± 2.53 mg/dL in the EPA/DHA and control groups, respectively (p < 0.001), whereas the changes in the mean ABI values were 0.07 ± 0.11 and -0.02 ± 0.09 in the EPA/DHA and control groups, respectively (p = 0.007). In the EPA/DHA group, a significant negative correlation was found between the changes in RLP-C levels and the ABI (r = -0.475, p = 0.04). Additionally, the change in the RLP-C levels independently influenced the change in the ABI in the EPA/DHA group, even after adjusting for age, sex, and statin use (p = 0.042). Conclusions: Add-on EPA/DHA treatment improved the effectiveness of conventional therapy (such as statin treatment) for improving the ABI in hemodialysis patients with dyslipidemia by lowering RLP-C levels. Therefore, clinicians involved in dialysis should focus on RLP-C when considering residual cardiovascular disease risk in hemodialysis patients and should consider screening patients with elevated levels.
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Affiliation(s)
- Yusuke Kobayashi
- Center for Novel and Exploratory Clinical Trials (Y-NEXT), Yokohama City University, Yokohama 236-0004, Japan
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama 236-0004, Japan (K.T.)
| | - Tetsuya Fujikawa
- Center for Health Service Sciences, Yokohama National University, Yokohama 240-8501, Japan
| | - Aiko Haruna
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama 236-0004, Japan (K.T.)
- Department of Nephrology and Hypertension, Yokohama City University Medical Center, Yokohama 232-0024, Japan (N.H.)
| | - Rina Kawano
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama 236-0004, Japan (K.T.)
- Department of Nephrology and Hypertension, Yokohama City University Medical Center, Yokohama 232-0024, Japan (N.H.)
| | - Moe Ozawa
- Department of Nephrology and Hypertension, Saiseikai Yokohamashi Nanbu Hospital, Yokohama 234-0054, Japan
| | - Tatsuya Haze
- Center for Novel and Exploratory Clinical Trials (Y-NEXT), Yokohama City University, Yokohama 236-0004, Japan
- Department of Nephrology and Hypertension, Yokohama City University Medical Center, Yokohama 232-0024, Japan (N.H.)
| | - Shiro Komiya
- Department of Nephrology and Hypertension, Saiseikai Yokohamashi Nanbu Hospital, Yokohama 234-0054, Japan
| | - Shota Suzuki
- Department of Nephrology and Hypertension, Yokohama City University Medical Center, Yokohama 232-0024, Japan (N.H.)
| | - Yuki Ohki
- Department of Nephrology and Hypertension, Yokohama City University Medical Center, Yokohama 232-0024, Japan (N.H.)
| | - Akira Fujiwara
- Department of Nephrology and Hypertension, Yokohama City University Medical Center, Yokohama 232-0024, Japan (N.H.)
| | - Sanae Saka
- Department of Nephrology and Hypertension, Saiseikai Yokohamashi Nanbu Hospital, Yokohama 234-0054, Japan
| | - Nobuhito Hirawa
- Department of Nephrology and Hypertension, Yokohama City University Medical Center, Yokohama 232-0024, Japan (N.H.)
| | - Yoshiyuki Toya
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama 236-0004, Japan (K.T.)
| | - Kouichi Tamura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama 236-0004, Japan (K.T.)
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Fujikawa T, Kawano K, Yanagawa Y, Katagiri S. 126 Effect of oestrus synchronisation protocol with a high dose of oestradiol and an intravaginal progesterone-releasing device on the endometrial epidermal growth factor concentrations and fertility in recipient cows. Reprod Fertil Dev 2022. [DOI: 10.1071/rdv35n2ab126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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Ueda E, Fujikawa T, Toya Y, Kuji T, Kakimoto-Shino M, Kawai Y, Kawano T, Azushima K, Wakui H, Tamura K. Clinical significance of a novel reticulocyte-based erythropoietin resistance index in HD patients: A retrospective study. Ther Apher Dial 2021; 26:915-923. [PMID: 34863017 DOI: 10.1111/1744-9987.13772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 11/26/2021] [Accepted: 11/29/2021] [Indexed: 11/29/2022]
Abstract
INTRODUCTION The erythropoietin resistance index (ERI) is an indicator of erythropoiesis-stimulating agent (ESA) responsiveness and is typically calculated using Hb. However, Hb does not directly reflect ESA-induced erythropoiesis because of its long-term nature. We thus designed a novel ERI calculated with reticulocyte Hb (RetHb), a real-time index, and investigated its association with mortality in HD patients. METHODS We calculated the ERI using the change in RetHb before and after ESA administration (ERIΔRetHb ) and retrospectively analyzed its association with 3-year all-cause mortality using Kaplan-Meier survival curves and Cox regression analyses. RESULTS A total of 102 patients were included. Patients with the highest ERIΔRetHb had the worst prognosis according to the Kaplan-Meier survival curves (Log-rank p = 0.02). Multivariate Cox regression analysis showed that the ERIΔRetHb was significantly and independently associated with all-cause mortality (hazard ratio: 9.82, 95% CI [1.50, 64.41], p = 0.02). CONCLUSION The ERIΔRetHb was significantly and independently associated with all-cause mortality in HD patients.
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Affiliation(s)
- Eiko Ueda
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan.,Department of Medicine, Yokohama City University Medical Center, Yokohama, Japan
| | - Tetsuya Fujikawa
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan.,Center for Health Service Sciences, Yokohama National University, Yokohama, Japan
| | - Yoshiyuki Toya
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Tadashi Kuji
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan.,Yokodai Central Clinic, Yokohama, Japan
| | - Midori Kakimoto-Shino
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Yuki Kawai
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan.,Department of Medicine, Yokohama City University Medical Center, Yokohama, Japan
| | | | - Kengo Azushima
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Hiromichi Wakui
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kouichi Tamura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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Kawai Y, Toya Y, Wakui H, Fujikawa T, Ueda E, Azushima K, Kinguchi S, Mitsuhashi H, Kawano T, Kuji T, Yamaguchi S, Ohnishi T, Tamura K. Potential effective treatment of shortening continuous erythropoietin receptor activator treatment interval combined with iron supplementation in hemodialysis patients. J Pharmacol Sci 2021; 147:118-125. [PMID: 34294362 DOI: 10.1016/j.jphs.2021.05.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/28/2021] [Accepted: 05/19/2021] [Indexed: 11/29/2022] Open
Abstract
Our previous randomized controlled trial comparing the total dose of weekly versus biweekly continuous erythropoietin receptor activator (CERA) therapy to maintain optimal hemoglobin (Hb) levels showed no significant differences between the two therapies. This post-hoc analysis assessed whether the total dose of weekly versus biweekly CERA therapy to maintain Hb levels among HD patients differed among groups with or without iron supplementation. Of 107 patients, 40 received intravenous iron supplementation due to iron deficiency (iron group) and 67 did not (non-iron group). In the iron group, the weekly therapy tended to require a lower total CERA dose compared with the biweekly therapy (274 ± 274 vs 381 ± 223 μg/12 weeks, P = 0.051). Changes in circulating hepcidin levels, a negative regulator of intestinal iron uptake, after 2 weeks of CERA treatment were significantly lower in the weekly therapy compared with the biweekly therapy (-4.2 ± 6.3 vs 11.1 ± 7.3 ng/mL, P = 0.015). In the non-iron group, there were no significant differences in total CERA dose or changes in hepcidin levels between the two therapies. Shortening the CERA treatment interval combined with iron supplementation may lead to the more efficient treatment of HD patients with iron deficiency.
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Affiliation(s)
- Yuki Kawai
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan
| | - Yoshiyuki Toya
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan
| | - Hiromichi Wakui
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan.
| | - Tetsuya Fujikawa
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan; Center for Health Service Sciences, Yokohama National University, 79-8 Tokiwadai, Hodogaya-ku, Yokohama, 240-8501, Japan
| | - Eiko Ueda
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan
| | - Kengo Azushima
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan
| | - Sho Kinguchi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan
| | - Hiroshi Mitsuhashi
- Kohsaikai Kamioooka Jinsei Clinic, 1-10-1 Kamioookanishi, Konan-ku, Yokohama, 233-0002, Japan
| | - Tomoyuki Kawano
- Kohsaikai Bunkojin Clinic, 356-3 Yatsucho, Kanazawa-ku, Yokohama, 236-0016, Japan
| | - Tadashi Kuji
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan; Yokodai Central Clinic, 3-9-31 Yokodai, Isogo-ku, Yokohama, 235-0045, Japan
| | - Satoshi Yamaguchi
- Kohsaikai Yokohama Jinsei Hospital, 3-1-28 Konan, Konan-ku, Yokohama, 233-0003, Japan
| | - Toshimasa Ohnishi
- Kohsaikai Kamioooka Jinsei Clinic, 1-10-1 Kamioookanishi, Konan-ku, Yokohama, 233-0002, Japan
| | - Kouichi Tamura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan
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Kawai Y, Toya Y, Wakui H, Fujikawa T, Ueda E, Azushima K, Mitsuhashi H, Kawano T, Kuji T, Yamaguchi S, Ohnishi T, Tamura K. Comparison of the effects of weekly and biweekly intravenous CERA administration on erythropoiesis: A randomized controlled trial. J Clin Hypertens (Greenwich) 2021; 23:870-878. [PMID: 33481341 PMCID: PMC8678717 DOI: 10.1111/jch.14171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 12/16/2020] [Accepted: 12/22/2020] [Indexed: 11/28/2022]
Abstract
Although continuous erythropoietin receptor activators (CERAs) are widely used erythropoiesis‐stimulating agents for correcting renal anemia in patients undergoing hemodialysis (HD), few reports have examined weekly CERA administration. In this randomized controlled trial, we compared the efficacy and changes in the parameters of iron metabolism and erythropoiesis between weekly and biweekly CERA administration. In total, 120 patients undergoing maintenance HD were randomized to the weekly or biweekly group. The primary end point was the total CERA dose needed to maintain the target hemoglobin (Hb) levels during a 12‐week evaluation period. There was no significant difference in the total dose between the weekly and biweekly groups (median 175.0 [interquartile range (IQR) 93.8–337.5] µg/12 weeks vs. 300.0 [IQR 125.0–375.0] µg/12 weeks, P = .18). The mean Hb levels during the evaluation period were 10.9 ± 0.8 g/dL in the weekly group and 10.7 ± 0.8 g/dL in the biweekly group (P = .25). Weekly CERA administration was well tolerated. Weekly CERA administration similarly managed anemia as biweekly administration in patients undergoing HD.
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Affiliation(s)
- Yuki Kawai
- Department of Medical Science and Cardiorenal Medicine Yokohama City University Graduate School of Medicine Yokohama Japan
| | - Yoshiyuki Toya
- Department of Medical Science and Cardiorenal Medicine Yokohama City University Graduate School of Medicine Yokohama Japan
| | - Hiromichi Wakui
- Department of Medical Science and Cardiorenal Medicine Yokohama City University Graduate School of Medicine Yokohama Japan
| | - Tetsuya Fujikawa
- Department of Medical Science and Cardiorenal Medicine Yokohama City University Graduate School of Medicine Yokohama Japan
- Center for Health Service Sciences Yokohama National University Yokohama Japan
| | - Eiko Ueda
- Department of Medical Science and Cardiorenal Medicine Yokohama City University Graduate School of Medicine Yokohama Japan
| | - Kengo Azushima
- Department of Medical Science and Cardiorenal Medicine Yokohama City University Graduate School of Medicine Yokohama Japan
| | | | | | - Tadashi Kuji
- Department of Medical Science and Cardiorenal Medicine Yokohama City University Graduate School of Medicine Yokohama Japan
- Yokodai Central Clinic Yokohama Japan
| | | | | | - Kouichi Tamura
- Department of Medical Science and Cardiorenal Medicine Yokohama City University Graduate School of Medicine Yokohama Japan
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Ohki K, Wakui H, Uneda K, Azushima K, Haruhara K, Kinguchi S, Urate S, Yamada T, Yamaji T, Kobayashi R, Kanaoka T, Minegishi S, Ishigami T, Fujikawa T, Toya Y, Tamura K. Effects of Erythropoietin-Stimulating Agents on Blood Pressure in Patients with Non-Dialysis CKD and Renal Anemia. Kidney Dis (Basel) 2020; 6:299-308. [PMID: 32903814 PMCID: PMC7445655 DOI: 10.1159/000507396] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 03/20/2020] [Indexed: 06/11/2023]
Abstract
INTRODUCTION Erythropoietin-stimulating agents (ESAs) are used to treat renal anemia in patients with non-dialysis CKD, but this can lead to increases in blood pressure (BP). OBJECTIVE We investigated the effects of continuous erythropoietin receptor activator (CERA) and darbepoetin alfa (DA) on office/ambulatory BP in 36 patients with non-dialysis CKD and renal anemia who did not receive ESA treatment. METHODS Participants were randomly assigned to CERA or DA, and received ESA treatment for 24 weeks. ESA doses were adjusted to maintain hemoglobin (Hb) at 10-12 g/dL. Primary outcomes were office/ambulatory BP after 24 weeks of ESA treatment. Hb levels were within the target range at 24 weeks. RESULTS Office/ambulatory BP, renal function, and other parameters were not significantly different between groups. However, we could not exclude the possibility that differences may exist because our sample size was small. Therefore, we also performed analysis of all of the data that were compiled from the groups of per-protocol population. Although office/ambulatory BP profiles had not worsened after 24 weeks of ESA treatment, more than half of the patients required an increase in the antihypertensive agent dose. CONCLUSIONS CERA and DA may have similar effects on BP profiles in patients with non-dialysis CKD and renal anemia. ESA treatment often requires increases in the doses of antihypertensive agents.
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Affiliation(s)
| | - Hiromichi Wakui
- *Dr. Hiromichi Wakui, Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9, Fukuura, Kanazawa-ku, Yokohama 236-0004 (Japan),
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Wakui H, Yamaji T, Azushima K, Uneda K, Haruhara K, Nakamura A, Ohki K, Kinguchi S, Kobayashi R, Urate S, Suzuki T, Kamimura D, Minegishi S, Ishigami T, Kanaoka T, Matsuo K, Miyazaki T, Fujikawa T, Yamashita A, Tamura K. Effects of Rikkunshito treatment on renal fibrosis/inflammation and body weight reduction in a unilateral ureteral obstruction model in mice. Sci Rep 2020; 10:1782. [PMID: 32024850 PMCID: PMC7002622 DOI: 10.1038/s41598-020-58214-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 01/13/2020] [Indexed: 11/09/2022] Open
Abstract
Chronic kidney disease (CKD) progresses to end-stage renal failure via renal tubulointerstitial fibrosis. Malnutrition, inflammation, and arteriosclerosis interact to exacerbate the poor prognosis of CKD, and their effective management is thus essential. The traditional Japanese medicine Rikkunshito (RKT) exerts appetite-stimulating effects via ghrelin, which attenuates inflammation and fibrosis. We evaluated the therapeutic effect of RKT in unilateral ureter obstruction (UUO)-induced renal fibrosis/inflammation and body weight loss in mice. UUO and sham-operated mice were fed a standard diet or diet containing 3.0% RKT. Renal fibrosis was investigated by histopathology and macrophage infiltration was determined by immunohistochemistry. Expression levels of genes associated with fibrosis, inflammation, ghrelin, and mitochondrial function were determined by quantitative reverse transcription-polymerase chain reaction and western blot analyses. RKT treatment partially prevented UUO-induced weight loss but failed to attenuate renal fibrosis and inflammation. Renal expression of sirtuin 1, a ghrelin-downstream signalling molecule, and gene expression of peroxisome proliferator-activated receptor-γ coactivator 1α and Bcl-2/adenovirus E1B interacting protein 3 were unaffected by RKT. These results indicate that RKT inhibits weight loss but does not improve renal fibrosis or inflammation in a rapidly progressive renal fibrosis mouse model. RKT may have a protective effect on weight loss associated with CKD.
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Affiliation(s)
- Hiromichi Wakui
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan.
| | - Takahiro Yamaji
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kengo Azushima
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan. .,Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, Singapore, Singapore.
| | - Kazushi Uneda
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kotaro Haruhara
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan.,Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Akiko Nakamura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kohji Ohki
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Sho Kinguchi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Ryu Kobayashi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Shingo Urate
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Toru Suzuki
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Daisuke Kamimura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Shintaro Minegishi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Tomoaki Ishigami
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Tomohiko Kanaoka
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kohei Matsuo
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Tomoyuki Miyazaki
- Department of Physiology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Tetsuya Fujikawa
- Center for Health Service Sciences, Yokohama National University, Yokohama, Japan
| | - Akio Yamashita
- Department of Molecular Biology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kouichi Tamura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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Honkawa Y, Fujikawa T, Miura N, Kubota C. 113 Effect of antioxidants on motility and fertility of liquid-stored bovine sperm. Reprod Fertil Dev 2020. [DOI: 10.1071/rdv32n2ab113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
It is difficult to maintain sperm in liquid storage for a long time, compared with permanent frozen storage in liquid nitrogen. Antioxidants have been reported to improve the quality and fertility of liquid-stored semen. In this study, we investigated whether antioxidants can extend the motility and fertility of frozen-thawed sperm in liquid storage. Frozen-thawed semen from one Japanese black bull (one ejaculate) was diluted in Tris-citrate-fructose (TCF) diluent with 10% (v/v) egg yolk to a sperm concentration of 1×107 spermmL−1. The antioxidants β-mercaptoethanol (βMe) and glutathione (GSH) were added independently, at various concentrations (0.1, 0.5, 1, and 5mM) to sperm suspensions, and these preparations were compared with Control (no added antioxidant). Sperm suspensions were packaged in centrifuge tubes and placed at 17°C in air and monitored daily until sperm motility had stopped (up to 14 days). Sperm motility was analysed by the Sperm Motility Analysis System (SMAS; Ditect Co. Ltd), and the percentage of progressively motile sperm (straight-line velocity (VSL) of >25μm s−1; Grade A classified by WHO manual), compared with that recorded on Day 0 (100%), was determined each day. For evaluation of fertilizing ability, after incubation in liquid storage for 0, 3, 5, and 7 days, sperm were used for IVF with invitro-matured oocytes (30 oocytes per treatment, three replicates). Embryo development was recorded as the proportion of embryos that reached blastocyst by 8 days after IVF. Data for motility were analysed using one-way ANOVA with Tukey test, and embryo development using chi-squared test. A P-value<0.05 was considered statistically significant. At 7 days, the percentage of progressively motile sperm was significantly higher for 0.5, 1, and 5mM βMe than for Control (30.8%, 48.1%, and 50.3%, vs. 0%, respectively). Treatments with 1 and 5mM βMe maintained some sperm progressive motility for 14 days (9.5% and 14.5%). Treatment with GSH showed the same trend at 7 days (32.2%, 36.3%, and 13.7% for 0.5, 1, and 5mM, vs. 0% for Control); 1 and 5mM GSH maintained sperm progressive motility over 10 days (24.8% and 4.4%). In both antioxidant treatments, embryo development was achieved with sperm stored for up to 5 days (Day 0 vs. Day 5 for 0.1mM βMe: 17.6% vs. 13.8%; for 1.0mM GSH: 26.0% vs. 6.7%; for Control: 17.6% vs. 0%). In this study, antioxidants extended both motility and fertility of frozen-thawed bovine sperm in liquid storage. This result suggests the possibility of application to AI using liquid-stored bovine semen.
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Sawai A, Motomura T, Oshima T, Sawai S, Fujikawa T, Fujii H, Bannai Y, Takeda Y, Ohno M, Tochikubo O. Influence of Acute Mental Arithmetic Stress on Taste and Pungency. J Nutr Sci Vitaminol (Tokyo) 2019; 65:224-232. [PMID: 31257262 DOI: 10.3177/jnsv.65.224] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Mental stress is a known risk factor for disease. This study investigated changes in sensations of taste and pungency before and after mental stress. Thirty healthy male university students rested for 20 min, performed mental arithmetic tasks for 10 min, and then underwent measurement of changes in their taste and ability to discern pungency. Taste was measured with the "Taste Disk®," and pungency was measured by a filter-paper disc method using capsaicin solution. Subjects were not told the order of the reagent solutions used. To quantify pain sensation, a weak current applied to the central inner forearm skin by a Pain Vision® quantitative pain sensation analyzer was gradually increased. The degree of stress was measured by portable electrocardiography (ECG). During mental stress, the cognitive threshold of salty taste, sweet taste, and bitterness was significantly decreased, whereas the sensations of pungency and forearm skin pain were increased and showed significant correlation. Based on sympathetic nerve activity analyzed with the ECG, the subjects were divided into the mental stress group and non-mental stress group. The mental stress group experienced an increase in the pungency threshold and sensation of forearm skin pain with significantly high correlations obtained, whereas no correlation was found between these factors in the non-mental stress group. Acute mental stress increased the sensitivity to taste but decreased the sensitivity to the sensation of pungency on the tongue and pain on the skin. Sympathetic activity activated by stress may affect taste and the sensation of pungency.
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Affiliation(s)
- Asuka Sawai
- Department of Nutrition and Life Science, Kanagawa Institute of Technology
| | - Takuma Motomura
- Department of Nutrition and Life Science, Kanagawa Institute of Technology
| | - Tatsuhiro Oshima
- Department of Nutrition and Life Science, Kanagawa Institute of Technology
| | - Shinya Sawai
- Department of Applied Physics, National Defense Academy
| | - Tetsuya Fujikawa
- Center for Health Service Sciences, Yokohama National University
| | | | - Yuichi Bannai
- Department of Information Media, Kanagawa Institute of Technology
| | - Yuichi Takeda
- Center for Basic Education and Integrated Learning, Kanagawa Institute of Technology
| | - Masato Ohno
- National Institute of Technology, Yonago College
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10
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Kinguchi S, Wakui H, Azushima K, Haruhara K, Koguchi T, Ohki K, Uneda K, Matsuda M, Haku S, Yamaji T, Yamada T, Kobayashi R, Minegishi S, Ishigami T, Yamashita A, Fujikawa T, Tamura K. Effects of ATRAP in Renal Proximal Tubules on Angiotensin-Dependent Hypertension. J Am Heart Assoc 2019; 8:e012395. [PMID: 30977419 PMCID: PMC6507205 DOI: 10.1161/jaha.119.012395] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Background We have previously shown that ATRAP (angiotensin II receptor-associated protein; Agtrap) interacts with AT1R (angiotensin II type 1 receptor) and promotes constitutive internalization of AT 1R so as to inhibit hyperactivation of its downstream signaling. In response to angiotensin II , systemic ATRAP deficiency exacerbates angiotensin II -mediated hypertension via hyperactivation of renal tubular AT 1R. Although ATRAP expression is abundant in renal proximal tubules, little is known about the actual function of renal proximal tubule ATRAP in angiotensin-mediated hypertension. Methods and Results In this study, we examined the in vivo functional role of renal proximal tubule ATRAP in angiotensin-dependent hypertension. We succeeded in generating proximal tubule-specific ATRAP knockout ( PT - KO ) mice for the first time using the Cre/loxP system with Pepck-Cre. Detailed analysis of renal ATRAP expression in PT - KO mice estimated by immunohistochemical and laser-capture microdissection analysis revealed that ATRAP mRNA expression decreased by ≈80% in proximal regions of the nephron in PT - KO mice compared with wild-type ( WT ) mice. We compared blood pressure of PT - KO and WT mice using both tail-cuff and radiotelemetric methods. Blood pressure of PT - KO mice was comparable with that of WT mice at baseline. Moreover, no significant differences were noted in pressor response to angiotensin II (600 ng/kg per min or 1000 ng/kg per minute) infusion between PT - KO and WT mice. In addition, angiotensin II -mediated cardiac hypertrophy was identical between PT - KO and WT mice. Conclusions ATRAP deficiency in proximal tubules did not exacerbate angiotensin-dependent hypertension in vivo. The results indicate that renal proximal tubule ATRAP has a minor role in angiotensin-dependent hypertension in vivo.
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Affiliation(s)
- Sho Kinguchi
- 1 Department of Medical Science and Cardiorenal Medicine Yokohama City University Graduate School of Medicine Yokohama Japan
| | - Hiromichi Wakui
- 1 Department of Medical Science and Cardiorenal Medicine Yokohama City University Graduate School of Medicine Yokohama Japan
| | - Kengo Azushima
- 1 Department of Medical Science and Cardiorenal Medicine Yokohama City University Graduate School of Medicine Yokohama Japan.,2 Cardiovascular and Metabolic Disorders Program Duke-NUS Medical School Singapore Singapore
| | - Kotaro Haruhara
- 1 Department of Medical Science and Cardiorenal Medicine Yokohama City University Graduate School of Medicine Yokohama Japan
| | - Tomoyuki Koguchi
- 1 Department of Medical Science and Cardiorenal Medicine Yokohama City University Graduate School of Medicine Yokohama Japan
| | - Kohji Ohki
- 1 Department of Medical Science and Cardiorenal Medicine Yokohama City University Graduate School of Medicine Yokohama Japan
| | - Kazushi Uneda
- 1 Department of Medical Science and Cardiorenal Medicine Yokohama City University Graduate School of Medicine Yokohama Japan
| | - Miyuki Matsuda
- 1 Department of Medical Science and Cardiorenal Medicine Yokohama City University Graduate School of Medicine Yokohama Japan
| | - Sona Haku
- 1 Department of Medical Science and Cardiorenal Medicine Yokohama City University Graduate School of Medicine Yokohama Japan
| | - Takahiro Yamaji
- 1 Department of Medical Science and Cardiorenal Medicine Yokohama City University Graduate School of Medicine Yokohama Japan
| | - Takayuki Yamada
- 1 Department of Medical Science and Cardiorenal Medicine Yokohama City University Graduate School of Medicine Yokohama Japan
| | - Ryu Kobayashi
- 1 Department of Medical Science and Cardiorenal Medicine Yokohama City University Graduate School of Medicine Yokohama Japan
| | - Shintaro Minegishi
- 1 Department of Medical Science and Cardiorenal Medicine Yokohama City University Graduate School of Medicine Yokohama Japan
| | - Tomoaki Ishigami
- 1 Department of Medical Science and Cardiorenal Medicine Yokohama City University Graduate School of Medicine Yokohama Japan
| | - Akio Yamashita
- 3 Department of Molecular Biology Yokohama City University Graduate School of Medicine Yokohama Japan
| | - Tetsuya Fujikawa
- 4 Center for Health Service Sciences Yokohama National University Yokohama Japan
| | - Kouichi Tamura
- 1 Department of Medical Science and Cardiorenal Medicine Yokohama City University Graduate School of Medicine Yokohama Japan
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11
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Abstract
Carboxylated poly-l-lysine (CPLL) is an ampholytic polymer compound and a polyamino acid with a known functional resemblance to antifreeze proteins. We previously reported that CPLL is an effective cryoprotectant for bovine cells, sperm, and slow-frozen embryos. In this study, we investigated CPLL as a cryoprotectant for vitrified bovine embryos. We developed bovine embryos in vitro and vitrified them at the blastocyst stage. Embryos were equilibrated (3min) and vitrified (1min). Vitrified embryos were cryopreserved in LN (Cryotop® device; Kitazato Corp., Tokyo, Japan) for at least 1 week, thawed with a 0.3M sucrose warming solution, and then cultured in a basal medium (Gibco® medium 199, Grand Island, NY, USA; supplemented with 100µM 2-mercaptoethanol, 10% fetal bovine serum, and antibiotics) at 38.5°C in a humidified atmosphere (5% CO2, 5% O2, 90% N2). We evaluated the embryos morphologically for survival and hatched rate at 0, 24, 48, and 72h post-thawing. In control, the equilibration solution (ES) consisted of 7.5% (vol/vol) dimethyl sulfoxide (DMSO) and 7.5% (vol/vol) ethylene glycol, and the vitrification solution (VS) consisted of 16.5% (vol/vol) DMSO and 16.5% (vol/vol) ethylene glycol and 0.5M sucrose. In this study, CPLL was added to ES and VS at various concentrations instead of DMSO. The CPLL was added at 16.5, 11.0, 5.5, and 2.2% (wt/vol) to VS; respectively, these solutions were named P16.5, P11.0, P5.5, and P2.2. The ES was used 45% CPLL of VS each. Embryos underwent the above procedure concurrently, with testing replicated at least 3 times. We evaluated 88, 34, 38, 44, and 28 embryos with each solution (control, P16.5, P11.0, P5.5, and P2.2, respectively). Results were analysed statistically with a chi-square test and residual analysis, regarding P<0.05 as significant. Survival rates were significantly greater in P11.0 at 24h post-thawing (55.7% v. 89.5%; P<0.05) and in P11.0 and P5.5 at 48h post-thawing (47.7% v. 78.9% and 47.7% v. 79.5%, respectively; P<0.05) relative to controls but showed no significant differences at 0h post-thawing. Hatched rates were significantly greater in P11.0 and P5.5 through 72h post-thawing relative to controls (44.7% v. 22.7% and 52.3% v. 22.7%, respectively; P<0.05). The CPLL improved post-thawing embryo survival and hatched rates when applied during vitrification, thus demonstrating cryoprotective effectiveness. We conclude that CPLL acts as a low-toxicity cryoprotectant for vitrified bovine embryos, and our results are consistent with previous reports of protective CPLL effects for cells and cell membranes.
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12
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Suzuki S, Shino M, Fujikawa T, Itoh Y, Ueda E, Hashimoto T, Kuji T, Kobayashi N, Ohnishi T, Hirawa N, Tamura K, Toya Y. Plasma Cystine Levels and Cardiovascular and All-Cause Mortality in Hemodialysis Patients. Ther Apher Dial 2018; 22:476-484. [PMID: 29968399 DOI: 10.1111/1744-9987.12669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 12/19/2017] [Accepted: 12/27/2017] [Indexed: 12/27/2022]
Abstract
Oxidative stress accelerates the development of cardiovascular disease. Plasma cystine, a thiol oxidative stress marker, is related to several established factors for cardiovascular disease risk and prognosis. Although a comprehensive oxidative stress index is clinically required for hemodialysis patients with high oxidative stress, there are few reports concerning thiol oxidative stress markers predicting their prognosis. We investigated the relationship between plasma amino acids including cystine levels and cardiovascular disease-related and all-cause mortality in 132 maintenance hemodialysis patients. Higher cystine levels were associated with old age, longer hemodialysis duration, hemodialysis-associated hypotension, higher cardiothoracic ratio, higher blood urea nitrogen, and lower ankle-brachial index. Multivariate Cox regression analysis revealed that high plasma cystine was independently related with both cardiovascular disease mortality and all-cause mortality. Thus, high plasma cystine levels predict the prognosis of hemodialysis patients. High cystine levels necessitate a careful investigation for the cause of oxidative stress and comorbidities like vascular injury.
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Affiliation(s)
- Shota Suzuki
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Midori Shino
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Tetsuya Fujikawa
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan.,Center for Health Service Sciences, Yokohama National University, Yokohama, Japan
| | - Yoko Itoh
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan.,Soubudai Nieren Clinic, Zama, Japan
| | - Eiko Ueda
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Tatsuo Hashimoto
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Tadashi Kuji
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan.,Yokodai Central Clinic, Yokohama, Japan
| | | | | | - Nobuhito Hirawa
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kouichi Tamura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Yoshiyuki Toya
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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13
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Sawai A, Igarashi R, Saitou M, Enami N, Sawai S, Fujikawa T, Takahashi K, Tochikubo O. Relationship between the risk of metabolic syndrome and the lifestyle index measured by the PULSENSE wristwatch-type stress-calorie monitor in middle-aged subjects. Gazz Med Ital - Arch Sci Med 2018. [DOI: 10.23736/s0393-3660.17.03535-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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14
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Kuji T, Kaneda T, Nishihara M, Shibata K, Satta H, Imoto K, Kawata SI, Koguchi N, Fujikawa T. SP349BASAL HEMOGLOBIN PRODUCTION AND REQUIRED DOSE OF ERYTHROPOIESIS-STIMULATING AGENTS IN HEMODIALYSIS PATIENTS WITH ANEMIA. Nephrol Dial Transplant 2018. [DOI: 10.1093/ndt/gfy104.sp349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Tadashi Kuji
- Internal Medicine, Yokodai Central Clinic, Yokohama, Japan
| | - Tomoko Kaneda
- Internal Medicine, Yokohama Minami Clinic, Yokohama, Japan
| | | | | | | | | | | | - Naoaki Koguchi
- Internal Medicine, Yokodai Central Clinic, Yokohama, Japan
| | - Tetsuya Fujikawa
- Center for Health Service Sciences, Yokohama National University, Yokohama, Japan
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15
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Kobayashi Y, Ishiguro H, Fujikawa T, Kobayashi H, Sumida K, Kagimoto M, Okuyama Y, Ehara Y, Katsumata M, Fujita M, Fujiwara A, Saka S, Yatsu K, Hirawa N, Toya Y, Yasuda G, Umemura S, Tamura K. Atherosclerosis of the carotid bulb is associated with the severity of orthostatic hypotension in non-diabetic adult patients: a cross-sectional study. Clin Exp Hypertens 2018; 41:1-8. [PMID: 29672186 DOI: 10.1080/10641963.2018.1465073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 03/20/2018] [Accepted: 04/10/2018] [Indexed: 10/17/2022]
Abstract
BACKGROUND The carotid bulb has a high density of baroreceptors that play an important role in maintaining blood pressure. We hypothesized that atherosclerosis of the carotid bulb would reflect the severity of orthostatic hypotension more accurately than would atherosclerosis of other carotid artery segments. METHODS This cross-sectional study included 198 non-diabetic adults. We measured the cardio-vascular ankle index as an index of arterial stiffness, intima-media thickness in each carotid artery segment (internal carotid artery, carotid bulb, distal and proximal portions, respectively, of the common carotid artery) as a measure of atherosclerosis, and heart rate variability as a measure of cardiac autonomic function. The sit-to-stand test was used to assess severity of orthostatic hypotension. RESULTS Intima-media thickness of the carotid bulb was correlated with orthostatic systolic blood pressure change (r = -0.218, p = 0.002), cardio-ankle vascular index (r = 0.365, p < 0.001) and heart rate variability parameters. Multivariate regression analysis revealed that among all of the segments, only intima-media thickness of the carotid bulb was an independent predictor of orthostatic systolic blood pressure change (p = 0.022). CONCLUSION Atherosclerosis of the carotid bulb was associated with severity of orthostatic hypotension, arterial stiffening and cardiac autonomic dysfunction than that of other carotid artery segments.
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Affiliation(s)
- Yusuke Kobayashi
- a Division of Nephrology and Hypertension , Saiseikai Yokohamashi Nanbu Hospital , Yokohama , Japan
- b Department of Internal Medicine , The Kobayashi Medical Clinic , Yokohama , Japan
| | - Hiroaki Ishiguro
- c Department of Medical Science and Cardiorenal Medicine , Yokohama City University Graduate School of Medicine , Yokohama , Japan
| | - Tetsuya Fujikawa
- c Department of Medical Science and Cardiorenal Medicine , Yokohama City University Graduate School of Medicine , Yokohama , Japan
- d Center for Health Service Sciences , Yokohama National University , Yokohama , Japan
| | - Hideo Kobayashi
- b Department of Internal Medicine , The Kobayashi Medical Clinic , Yokohama , Japan
| | - Koichiro Sumida
- c Department of Medical Science and Cardiorenal Medicine , Yokohama City University Graduate School of Medicine , Yokohama , Japan
| | - Minako Kagimoto
- c Department of Medical Science and Cardiorenal Medicine , Yokohama City University Graduate School of Medicine , Yokohama , Japan
| | - Yuki Okuyama
- a Division of Nephrology and Hypertension , Saiseikai Yokohamashi Nanbu Hospital , Yokohama , Japan
- c Department of Medical Science and Cardiorenal Medicine , Yokohama City University Graduate School of Medicine , Yokohama , Japan
| | - Yosuke Ehara
- c Department of Medical Science and Cardiorenal Medicine , Yokohama City University Graduate School of Medicine , Yokohama , Japan
| | - Mari Katsumata
- c Department of Medical Science and Cardiorenal Medicine , Yokohama City University Graduate School of Medicine , Yokohama , Japan
| | - Megumi Fujita
- c Department of Medical Science and Cardiorenal Medicine , Yokohama City University Graduate School of Medicine , Yokohama , Japan
| | - Akira Fujiwara
- e Department of Nephrology and Hypertension , Yokohama City University Medical Center , Yokohama , Japan
| | - Sanae Saka
- e Department of Nephrology and Hypertension , Yokohama City University Medical Center , Yokohama , Japan
| | - Keisuke Yatsu
- c Department of Medical Science and Cardiorenal Medicine , Yokohama City University Graduate School of Medicine , Yokohama , Japan
| | - Nobuhito Hirawa
- e Department of Nephrology and Hypertension , Yokohama City University Medical Center , Yokohama , Japan
| | - Yoshiyuki Toya
- c Department of Medical Science and Cardiorenal Medicine , Yokohama City University Graduate School of Medicine , Yokohama , Japan
| | - Gen Yasuda
- e Department of Nephrology and Hypertension , Yokohama City University Medical Center , Yokohama , Japan
| | - Satoshi Umemura
- f Department of Internal Medicine , Yokohama Rosai Hospital , Yokohama , Japan
| | - Kouichi Tamura
- c Department of Medical Science and Cardiorenal Medicine , Yokohama City University Graduate School of Medicine , Yokohama , Japan
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16
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Kon R, Tsubota Y, Minami M, Kato S, Matsunaga Y, Kimura H, Murakami Y, Fujikawa T, Sakurai R, Tomimoto R, Machida Y, Ikarashi N, Sugiyama K. CPT-11-Induced Delayed Diarrhea Develops via Reduced Aquaporin-3 Expression in the Colon. Int J Mol Sci 2018; 19:ijms19010170. [PMID: 29316651 PMCID: PMC5796119 DOI: 10.3390/ijms19010170] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 12/19/2017] [Accepted: 12/31/2017] [Indexed: 02/08/2023] Open
Abstract
While irinotecan (CPT-11) has a potent anti-cancer effect, it also causes serious diarrhea as an adverse reaction. In this study, we analyzed the pathogenic mechanism of CPT-11-induced delayed diarrhea by focusing on water channel aquaporin-3 (AQP3) in the colon. When rats received CPT-11, the expression level of AQP3 was reduced during severe diarrhea. It was found that the expression levels of inflammatory cytokines and the loss of crypt cells were increased in the colon when CPT-11 was administered. When celecoxib, an anti-inflammatory drug, was concomitantly administered, both the diarrhea and the reduced expression of AQP3 induced by CPT-11 were suppressed. The inflammation in the rat colon during diarrhea was caused via activated macrophage by CPT-11. These results showed that when CPT-11 is administered, the expression level of AQP3 in the colon is reduced, resulting in delayed diarrhea by preventing water transport from the intestinal tract. It was also suggested that the reduced expression of AQP3 might be due to the inflammation that occurs following the loss of colonic crypt cells and to the damage caused by the direct activation of macrophages by CPT-11. Therefore, it was considered that anti-inflammatory drugs that suppress the reduction of AQP3 expression could prevent CPT-11-induced delayed diarrhea.
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Affiliation(s)
- Risako Kon
- Global Research Center for Innovative Life Science, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan.
| | - Yuika Tsubota
- Department of Clinical Pharmacokinetics, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan.
| | - Moe Minami
- Department of Clinical Pharmacokinetics, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan.
| | - Saki Kato
- Department of Clinical Pharmacokinetics, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan.
| | - Yukari Matsunaga
- Department of Clinical Pharmacokinetics, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan.
| | - Hiroshi Kimura
- Department of Clinical Pharmacokinetics, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan.
| | - Yuta Murakami
- Department of Clinical Pharmacokinetics, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan.
| | - Tetsuya Fujikawa
- Department of Clinical Pharmacokinetics, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan.
| | - Ryoya Sakurai
- Department of Clinical Pharmacokinetics, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan.
| | - Rei Tomimoto
- Department of Clinical Pharmacokinetics, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan.
| | - Yoshiaki Machida
- Division of Applied Pharmaceutical Education and Research, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan.
| | - Nobutomo Ikarashi
- Department of Clinical Pharmacokinetics, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan.
| | - Kiyoshi Sugiyama
- Department of Functional Molecular Kinetics, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan.
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17
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Affiliation(s)
- R Negayama
- The Post-graduate Education Center, Mitoyo General Hospital, 708 Himehama Toyohama, Kanonji, Kagawa, 769-1695, Japan
| | - T Fujikawa
- Department of General Internal Medicine, Mitoyo General Hospital, 708 Himehama Toyohama, Kanonji, Kagawa, 769-1695, Japan
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18
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Fujikawa T, Imamura S, Tokumaru M, Ando T, Gen Y, Hyon SH, Kubota C. 43 Cryopreservation of Bovine Sperm Using Antifreeze Polyamino-Acid. Reprod Fertil Dev 2018. [DOI: 10.1071/rdv30n1ab43] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Carboxylated poly-l-lysine (CPLL), an ampholytic polymer compound, is reported to have a cryoprotective property similar to that of antifreeze proteins. We previously reported the effectiveness of CPLL as cryoprotective material for bovine sperm (43rd Annual Conference of International Embryo Technology Society, Austin, TX, USA; http://www.iets.org/2017/IETS_2017_Program_Book_FINAL.pdf). In this research, we investigated additional aspects of CPLL for bovine sperm. The conventional cryopreservation medium used for Control group consisted of 6.5% (v/v) glycerin, and the cryopreservation medium used for the CPLL group consisted of 3.25% (v/v) glycerin and 0.5% CPLL (w/v). In experiment 1, sperm motility was measured 1, 3, and 6 h after thawing. The post-thaw motility was assessed by using Sperm Motility Analysis System (DITECT Corp., Tokyo, Japan). The CPLL treatment yielded better motility rate at 6 h (Control v. CPLL; 23.7% v. 38.5%; P < 0.01), average path velocity (μm s−1) at 1 and 3 h (Control v. CPLL; 49.8 v. 57.7, 35.8 v. 42.8; P < 0.01), straight-line velocity (μm s−1) at 1 h (Control v. CPLL; 35.2 v. 45.7; P < 0.01), and curvilinear velocity (μm/s) at 1 and 3 h (Control v. CPLL; 93.7 v. 106.2, 59.9 v. 68.4; P < 0.01) than the Control. In experiment 2, sperm membrane integrity was assessed by using the LIVE/DEAD Sperm Viability Kit (Thermo Fisher Scientific K.K., Kanagawa, Japan). The CPLL group yielded greater sperm membrane integrity rate than control (Control v. CPLL; 49.6% v. 60.6%; P < 0.01). In experiment 3, AI was carried out on 111 cows (Control v. CPLL; 49 v. 62) and the conception rate of the CPLL group was significantly higher than that of the control group (53.1% v. 79.0%; P < 0.01). Previously, we reported the effectiveness of CPLL for bovine sperm. In this study, we clarified how CPLL works to improve the conception rate of AI: CPLL maintains post-thaw motility and protects the sperm membrane. These results suggest that CPLL has potential as a new cryoprotective material for bovine sperm.
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19
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Kobayashi Y, Yatsu K, Nakata-Shimokihara K, Inoue N, Fujikawa T, Hirawa N, Umemura S, Satoh F, Rossi GP, Tamura K. Monozygotic twins discordant for primary aldosteronism: a case report. J Hum Hypertens 2017; 31:754-755. [DOI: 10.1038/jhh.2017.41] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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20
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Kobayashi Y, Yatsu K, Nakata-Shimokihara K, Inoue N, Fujikawa T, Hirawa N, Umemura S, Satoh F, Rossi GP, Tamura K. Monozygotic twins discordant for primary aldosteronism: a case report. J Hum Hypertens 2017; 31:760. [PMID: 28974781 DOI: 10.1038/jhh.2017.53] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
This corrects the article DOI: 10.1038/jhh.2017.41.
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21
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Fujikawa T, Castorena CM, Lee S, Elmquist JK. The hypothalamic regulation of metabolic adaptations to exercise. J Neuroendocrinol 2017; 29:10.1111/jne.12533. [PMID: 28887871 PMCID: PMC6264914 DOI: 10.1111/jne.12533] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 09/01/2017] [Indexed: 12/16/2022]
Abstract
Our modern lifestyle is characterised by easy access to nutrient dense foods combined with limited physical activity. A sedentary lifestyle is one of several factors that have contributed to the global obesity epidemic and it also predisposes to chronic illnesses such as diabetes and cardiovascular disease. Although many studies have focused on the benefits of exercise in peripheral tissues, the contributions of the central nervous system to these exercise-induced metabolic adaptations are relatively unknown. The present review highlights the role of the ventromedial hypothalamus in regulating the metabolic response to exercise.
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Affiliation(s)
- T Fujikawa
- Division of Hypothalamic Research, Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX, USA
- Department of Cellular and Integrative Physiology, The University of Texas Health San Antonio, San Antonio, TX, USA
| | - C M Castorena
- Division of Hypothalamic Research, Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - S Lee
- Division of Hypothalamic Research, Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - J K Elmquist
- Division of Hypothalamic Research, Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX, USA
- Department of Pharmacology, The University of Texas Southwestern Medical Center, Dallas, TX, USA
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Kobayashi Y, Fujikawa T, Yatsu K, Iwamoto T, Hirawa N, Kobayashi H, Umemura S, Tamura K. Abstract P492: Lower Body Mass Index is Associated With Arterial Stiffening and Severity of Orthostatic Hypotension in Middle-aged and Older Patients With Abdominal Obesity. Hypertension 2017. [DOI: 10.1161/hyp.70.suppl_1.p492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Recently, patients with both sarcopenia and abdominal obesity are known to exhibit subclinical atherosclerosis and high mortality risk. Sarcopenic obesity is considered to be latent in those without increase in body mass index (BMI) despite having abdominal obesity. We aimed to investigate whether arterial stiffening and severity of orthostatic hypotension, which is the risk of cardiovascular disease, is associated with lower BMI in patients with abdominal obesity.
Methods:
We studied middle-aged and older patients with normal to high BMI (BMI ≥ 18.5) and being treated with life-style related diseases. The patients were divided into 2 groups (with or without abdominal obesity) according to waist circumference (WC) (abdominal obesity: men; WC ≥ 85 cm, women; WC ≥ 90 cm). We measured cardio-vascular ankle index (CAVI) for an index of arterial stiffness. We assessed sit-to-stand test for measuring orthostatic systolic blood pressure (SBP) change.
Results:
One thousand and forty-six patients were included in the study. Mean age of the patients was 68.0 ± 10.1 years (42.5% were men), hypertension dyslipidemia and diabetes mellitus was observed in 83.3%, 74.3% and 20.2% of the patients respectively. There was a significant negative correlation with BMI and CAVI in patients with abdominal obesity (r=-0.309, p<0.001, n=434), whereas no significant association was observed in patients without abdominal obesity (p=N.S., n=612). There was a significant positive correlation with BMI and orthostatic SBP change in patients with abdominal obesity (r=0.213, p<0.001) and in patients without abdominal obesity (r=0.117, P=0.004). Multivariate regression analysis revealed that BMI was an independent determinant of CAVI and orthostatic SBP change in patients with abdominal obesity (p<0.001, p<0.001, respectively), and was an independent determinant of orthostatic SBP change in patients without abdominal obesity (p=0.004).
Conclusion:
In patients with abdominal obesity, lower BMI was an independent determinant of arterial stiffening and severity of orthostatic hypotension. Further investigation by evaluating body composition is necessary and now ongoing to assess the risk of lower BMI in patients with abdominal obesity.
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Azushima K, Wakui H, Uneda K, Haku S, Kobayashi R, Ohki K, Kinguchi S, Haruhara K, Fujikawa T, Toya Y, Umemura S, Tamura K. Within-visit blood pressure variability and cardiovascular risk factors in hypertensive patients with non-dialysis chronic kidney disease. Clin Exp Hypertens 2017. [DOI: 10.1080/10641963.2017.1313850] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Kengo Azushima
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
- Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, Singapore
| | - Hiromichi Wakui
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kazushi Uneda
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Sona Haku
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Ryu Kobayashi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kohji Ohki
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Sho Kinguchi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kotaro Haruhara
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Tetsuya Fujikawa
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Yoshiyuki Toya
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Satoshi Umemura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kouichi Tamura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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Lai YC, Fujikawa T, Ando T, Kitahara G, Koiwa M, Kubota C, Miura N. Rapid Communication: MiR-92a as a housekeeping gene for analysis of bovine mastitis-related microRNA in milk1. J Anim Sci 2017; 95:2732-2735. [DOI: 10.2527/jas.2017.1384] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
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Kawano T, Kuji T, Fujikawa T, Ueda E, Shino M, Yamaguchi S, Ohnishi T, Tamura K, Hirawa N, Toya Y. Timing-adjusted iron dosing enhances erythropoiesis-stimulating agent-induced erythropoiesis response and iron utilization. Ren Replace Ther 2017. [DOI: 10.1186/s41100-017-0103-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Katsumata M, Hirawa N, Sumida K, Kagimoto M, Ehara Y, Okuyama Y, Fujita M, Fujiwara A, Kobayashi M, Kobayashi Y, Yamamoto Y, Saka S, Yatsu K, Fujikawa T, Toya Y, Yasuda G, Tamura K, Umemura S. Effects of tolvaptan in patients with chronic kidney disease and chronic heart failure. Clin Exp Nephrol 2017; 21:858-865. [PMID: 28190113 PMCID: PMC5648735 DOI: 10.1007/s10157-016-1379-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 12/30/2016] [Indexed: 11/24/2022]
Abstract
BACKGROUND Tolvaptan, a vasopressin V2 receptor blocker, has a diuretic effect for patients with heart failure. However, there were a few data concerning the effects of tolvaptan in patients with chronic kidney disease (CKD). METHODS We retrospectively analyzed 21 patients with chronic heart failure and CKD. Tolvaptan was co-administered with other diuretics in-use, every day. We compared clinical parameters before and after the treatments with tolvaptan. Furthermore, we examined the correlations between baseline data and the change of body weight. RESULTS Tolvaptan decreased the body weight and increased the urine volume (p = 0.001). The urine osmolality significantly decreased throughout the study period. Urinary Na/Cr ratio and FENa changed significantly after 4 h, and more remarkable after 8 h (p = 0.003, both). Serum creatinine increased slightly after 1 week of treatment (p = 0.012). The alteration of body weight within the study period correlated negatively with the baseline urine osmolality (r = -0.479, p = 0.038), the baseline urine volume (r = -0.48, p = 0.028), and the baseline inferior vena cava diameter (IVCD) (r = -0.622, p = 0.017). Hyponatremia was improved to the normal value, and the augmentations of the sodium concentration were negatively associated with the basal sodium levels (p = 0.01, r = -0.546). CONCLUSIONS Tolvaptan is effective in increasing diuresis and improved hyponatremia, even in patients with CKD. The baseline urine osmolality, urine volume, and IVCD may be useful predictors for diuretic effects of tolvaptan.
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Affiliation(s)
- Mari Katsumata
- Department of Nephrology and Hypertension, Yokohama City University Medical Center, 45-7 Urafune-cho, Minami-ku, Yokohama, 232-0024, Japan
| | - Nobuhito Hirawa
- Department of Nephrology and Hypertension, Yokohama City University Medical Center, 45-7 Urafune-cho, Minami-ku, Yokohama, 232-0024, Japan
| | - Koichiro Sumida
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University School of Medicine, Yokohama, Japan
| | - Minako Kagimoto
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University School of Medicine, Yokohama, Japan
| | - Yosuke Ehara
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University School of Medicine, Yokohama, Japan
| | - Yuki Okuyama
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University School of Medicine, Yokohama, Japan
| | - Megumi Fujita
- Department of Nephrology and Hypertension, Yokohama City University Medical Center, 45-7 Urafune-cho, Minami-ku, Yokohama, 232-0024, Japan
| | - Akira Fujiwara
- Department of Nephrology and Hypertension, Yokohama City University Medical Center, 45-7 Urafune-cho, Minami-ku, Yokohama, 232-0024, Japan
| | - Mayumi Kobayashi
- Department of Nephrology and Hypertension, Yokohama City University Medical Center, 45-7 Urafune-cho, Minami-ku, Yokohama, 232-0024, Japan
| | - Yusuke Kobayashi
- Department of Nephrology, Yokosuka City Hospital, Yokosuka, Japan
| | - Yuichiro Yamamoto
- Department of Nephrology and Hypertension, Yokohama City University Medical Center, 45-7 Urafune-cho, Minami-ku, Yokohama, 232-0024, Japan
| | - Sanae Saka
- Department of Nephrology and Hypertension, Yokohama City University Medical Center, 45-7 Urafune-cho, Minami-ku, Yokohama, 232-0024, Japan
| | - Keisuke Yatsu
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University School of Medicine, Yokohama, Japan
| | - Tetsuya Fujikawa
- Center for Health Service Sciences, Yokohama National University, Yokohama, Japan
| | - Yoshiyuki Toya
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University School of Medicine, Yokohama, Japan
| | - Gen Yasuda
- Department of Nephrology and Hypertension, Yokohama City University Medical Center, 45-7 Urafune-cho, Minami-ku, Yokohama, 232-0024, Japan
| | - Kouichi Tamura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University School of Medicine, Yokohama, Japan
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Fujikawa T, Kubota C, Ando T, Gen Y, Hyon SH. 52 CRYOPRESERVATION OF BOVINE SOMATIC CELL USING ANTIFREEZE POLYAMINO-ACID (CARBOXYLATED POLY-L-LYSINE). Reprod Fertil Dev 2017. [DOI: 10.1071/rdv29n1ab52] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Cryopreservation is used for long-term preservation of biological materials containing cell and tissue, somatic cells are important to commercial application in gene bank and medical engineer. For cell cryopreservation, dimethyl sulfoxide (DMSO) have been used widely as cryoprotective material for long time. Carboxylated poly-l-lysine (CPLL) is an ampholytic polymer compound obtained by converting 65% amino groups to carboxyl groups after synthesising ε-poly-l-lysine aqueous solution and succinic anhydride. It is reported that the addition of CPLL into cryopreservation medium improves the post-thaw survival rate of murine L929 cells, human induced pluripotent stem cells and murine embryo. In this research, the effectiveness of CPLL as bovine somatic cell cryoprotective material was examined. In experiment 1, using bovine fibroblast cells from skin, the cryopreservation media were prepared as follows: 10% (vol/vol) DMSO, 5% (vol/vol) DMSO + 5% (wt/vol) CPLL, 5% (wt/vol) CPLL, 7.5% (wt/vol) CPLL, 10% (wt/vol) CPLL and 20% (wt/vol) CPLL were dissolved in DMEM and pH was adjusted to 7.4. Cells were resuspended in 1 mL of cryopreservation medium at a cell density of 5 × 105 and stored in a −80°C freezer. After storage for at least 1 wk, cells were thawed. The 5% CPLL showed significantly higher post-thaw survival rate than 10% DMSO (96.5% v. 86.7%; P < 0.05), and 7.5% CPLL and 20% CPLL showed significantly higher proliferation rates than 10% DMSO at 72 h after thawing (10% DMSO v. 7.5% CPLL v. 20% CPLL ; 99.4% v. 173.6% v. 207.4%; P < 0.05). Although it is necessary to remove the cryoprotective material after thawing, the proliferation rate at 72 h after thawing of 5% CPLL and 10% CPLL without removal of cryoprotective material were significantly higher than that when removing cryoprotective material (111.2% v. 269.6%, 113.0% v. 210.0%). In addition, there was no difference between the removal treatment of CPLL and the NOT removal treatment of CPLL at the thawing. In experiment 2, using bovine cumulus cells, the cryopreservation media were prepared as follows: 10% (vol/vol) DMSO, 5% (vol/vol) DMSO + 5% (wt/vol) CPLL, 5% (wt/vol) CPLL, 10% (wt/vol) CPLL, 20% (wt/vol) CPLL, 25% (wt/vol) CPLL, and 30% (wt/vol) CPLL were dissolved in DMEM and other conditions were the same as experiment 1. There was no significant difference for post-thaw survival rate (93.7, 91.8, 89.2, 89.2, 95.3, 91.6, and 90.2%). At 72 h after thawing, 10% DMSO, 5% DMSO + 5% CPLL and 25% CPLL showed higher proliferation rate (10% DMSO v. 5% DMSO + 5% CPLL v. 25% CPLL; 258.4% v. 281.4% v. 257.4%). The significant differences in survival rate were determined by chi-squared test, and in proliferation were determined by ANOVA. In bovine somatic cells, it was possible to cryopreserve cells using CPLL without DMSO. The cryoprotective effect of CPLL is equal or superior to that of DMSO, the conventional cryoprotective material. Further, when using CPLL, it was possible to culture without removing the cryopreservation medium after thawing. These results suggest that CPLL has promise as a new cryoprotective material for bovine somatic cells.
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Fujikawa T, Kubota C, Ando T, Imamura S, Tokumaru M, Yamakuchi H, Gen Y, Hyon SH. 47 CRYOPRESERVATION OF BOVINE GERM CELL USING ANTIFREEZE POLYAMINO-ACID (CARBOXYLATED POLY-L-LYSINE). Reprod Fertil Dev 2017. [DOI: 10.1071/rdv29n1ab47] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Carboxylated poly-l-lysine (CPLL) is an ampholytic polymer compound, and it is obtained by converting 65% amino groups to carboxyl groups after synthesising ε-poly-l-lysine aqueous solution and succinic anhydride. CPLL has cryoprotective property similar to antifreeze protein, and addition of CPLL into cryopreservation medium improves the post-thaw survival rate of cells and embryos. In this research, we examined the effectiveness of CPLL as a bovine germ cell cryoprotective material. In experiment 1 (in sperm), the conventional cryopreservation medium used for control group was consisted of 6.5% (vol/vol) glycerin, and the cryopreservation medium used for CPLL group was consisted of 3.25% (vol/vol) glycerin and 0.5% CPLL (wt/vol). The post-thaw survival and motility were assessed by using Sperm Motility Analysis System (DITECT Corp., Tokyo, Japan). There was no significant difference for post-thaw survival rate and motility (control v. CPLL; 98.8% v. 96.6% and 69.7% v. 62.2%, respectively). Artificial insemination was carried out in 65 cows (control v. CPLL; 34 v. 31), and the conception rate of the CPLL group was higher than that of the control group (80.6% v. 67.6%; P = 0.23). In experiment 2 (embryos), the conventional cryopreservation medium used for control group was consisted of 5% (vol/vol) ethylene glycol and 6% (vol/vol) propylene glycol in PBS. In the CPLL group, 7% (wt/vol) CPLL was added to the conventional medium. In vitro fertilization embryos were cryopreserved at Day 7 and Day 8. There was no significant difference in survival rate at 0, 24, and 48 h and hatched rate until 72 h after thawing (control v. CPLL: 93.6% v. 93.2%, 69.0% v. 64.7%, 56.1% v. 56.3%, 12.9% v. 10.2%, respectively). Embryos obtained by superovulation treatment and in vivo fertilization at Day 7 were cryopreserved using above 2 media, and transferred non-surgically into synchronized recipient cows (1 embryo per animal). Embryo transfer (ET) was carried out in 81 cows (control v. CPLL: 31 v. 50), and recipients were diagnosed for pregnancy ultrasonically 50 days after embryo transfer. Conception rate of CPLL group was higher than control group (50.0% v. 29.0%; P = 0.063). In both experiments, the significant differences between control group and CPLL group were determined by chi-squared test. The effectiveness of CPLL in cells and embryos has been reported; however, there is no report using CPLL in bovine germ cells. In this research, CPLL improved the conception rate of AI and ET, probably due to its low toxicity and protection of the cell membrane. These results suggest that CPLL is available as a new cryoprotective material for bovine sperm and embryo in slow freezing methods.
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Lai* YC, Fujikawa T, Ando T, Kitahara G, Koiwa M, Kubota C, Miura N. Rapid Communication: as a housekeeping gene for analysis of bovine mastitis-related microRNA in milk. J Anim Sci 2017. [DOI: 10.2527/jas2017.1384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Uneda K, Tamura K, Wakui H, Azushima K, Haku S, Kobayashi R, Ohki K, Haruhara K, Kinguchi S, Ohsawa M, Fujikawa T, Umemura S. Comparison of direct renin inhibitor and angiotensin II receptor blocker on clinic and ambulatory blood pressure profiles in hypertension with chronic kidney disease. Clin Exp Hypertens 2016; 38:738-743. [DOI: 10.1080/10641963.2016.1200064] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Kazushi Uneda
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kouichi Tamura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Hiromichi Wakui
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kengo Azushima
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Sona Haku
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Ryu Kobayashi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kohji Ohki
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kotaro Haruhara
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Sho Kinguchi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Masato Ohsawa
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Tetsuya Fujikawa
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Satoshi Umemura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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Kobayashi Y, Fujikawa T, Kobayashi H, Sumida K, Suzuki S, Kagimoto M, Okuyama Y, Ehara Y, Katsumata M, Fujita M, Fujiwara A, Saka S, Yatsu K, Hashimoto T, Kuji T, Hirawa N, Toya Y, Yasuda G, Umemura S. Relationship between Arterial Stiffness and Blood Pressure Drop During the Sit-to-stand Test in Patients with Diabetes Mellitus. J Atheroscler Thromb 2016; 24:147-156. [PMID: 27453255 PMCID: PMC5305675 DOI: 10.5551/jat.34645] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Aim: Patients with orthostatic hypotension (OH) have high arterial stiffness. Patients with diabetes mellitus (DM) often have cardiac autonomic neuropathy that leads to OH; however, whether OH is an indicator of arterial stiffness progression is unclear. We aimed to investigate whether the cardioankle vascular index (CAVI) varies between DM patients with and without OH using the sit-to-stand test (STST). Methods: One hundred and fifty-nine patients with DM underwent CAVI assessment and blood pressure (BP) and heart rate change evaluation during the STST. OH was defined as a decline in systolic BP (SBP) and/or diastolic BP of at least 20 mmHg or 10 mmHg, respectively, in the initial and late upright positions compared with that in the sitting position. Results: OH was diagnosed in 42 patients (26.4%). DM patients with OH had significantly higher CAVI (9.36 ± 1.15 versus 8.89 ± 1.18, p = 0.026) than those without OH. CAVI was significantly inversely correlated with systolic and diastolic BP changes (R = −0.347, p <0.001 and R = −0.314, p <0.001, respectively) in the initial upright position. Multivariate regression analysis revealed that age, SBP changes, and low frequency component in the initial upright position were independent determinants of CAVI. Conclusion: Patients with DM having large BP drops occurring when moving from sitting to standing have high arterial stiffness. A significant BP drop during the STST necessitates careful evaluation of advanced arterial stiffness in patient with DM.
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Kuji T, Kawano T, Ueda E, Fujikawa T, Shino M, Yamaguchi S, Shibata K, Toshimasa O, Tamura K, Hirawa N, Toya Y, Umemura S. SP548EFFECT OF IRON DOSING ON IRON-RELATED PARAMETERS DURING ACTIVATED ERYTHROPOIESIS BY ERITHROPOIESIS STIMULATING AGENT IN HAEMODIALYSIS PATIENTS. Nephrol Dial Transplant 2016. [DOI: 10.1093/ndt/gfw174.03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Fujikawa T, Yamamoto S, Sekine Y, Oshima S, Kasai R, Mochida Y, Ozaki K, Sasaguri S. Operative Results and Clinical Features of Chronic Stanford Type B Aortic Dissection: Examination of 234 Patients Over 6 Years. Eur J Vasc Endovasc Surg 2015; 50:738-43. [PMID: 26427847 DOI: 10.1016/j.ejvs.2015.07.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Accepted: 07/08/2015] [Indexed: 10/23/2022]
Abstract
OBJECTIVE/BACKGROUND Recently, the indications for thoracic endovascular aortic repair (TEVAR) have been expanding, and the applicability of TEVAR for acute type B aortic dissection (TBAD) is proposed with regard to the high mortality of open surgery for chronic TBAD. TEVAR in the acute phase may lead to remodeling of the false lumen (FL), but it is controversial whether it completely resolves the aortic expansion in the chronic phase. In this study, operative results and the relationship between FL status and the time before surgical intervention were retrospectively analyzed. METHODS From January 2008 to September 2013, 234 patients underwent open surgery for chronic TBAD. Most patients were on left heart bypass. By considering Japanese aortic disease treatment guidelines and the smaller physique of Japanese patients, operative indications were aneurysm >50 mm in diameter or rapid aneurysm enlargement of >5 mm in a 6 month period. RESULTS In 180 cases, the FL was patent. The mean interval between onset of TBAD and operation was 61 ± 54 months. There was no significant difference between patients in the patent FL group and those in the thrombosed FL group (p = .44). Mean ratio of FL diameter to maximum aortic diameter (FL/AD) was 0.64 ± 0.21. There was no correlation between FL and AD before the operation (r = .12). Descending thoracic aortic replacement (DTAR) was performed in 127 cases and thoracic ascending aortic replacement (TAAR) in 107 cases (Crawford type I, n = 9; Crawford type II, n = 65; Crawford type III and IV, n = 22, respectively; Safi type V, n = 11). The overall operative mortality was 6.8%: 3.9% (5/127) for DTAR and 10.3% (11/107) for TAAR. The three year survival was 86.7, and the freedom from re-intervention rate was 97.0%. CONCLUSION Enlargement of uncomplicated TBAD in the chronic phase was poorly related to FL status and the results of open repair have improved. However, further prospective study is necessary.
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Affiliation(s)
- T Fujikawa
- Kawasaki Aortic Center, Kawasaki Saiwai Hospital, Kawasaki, Japan.
| | - S Yamamoto
- Kawasaki Aortic Center, Kawasaki Saiwai Hospital, Kawasaki, Japan
| | - Y Sekine
- Kawasaki Aortic Center, Kawasaki Saiwai Hospital, Kawasaki, Japan
| | - S Oshima
- Kawasaki Aortic Center, Kawasaki Saiwai Hospital, Kawasaki, Japan
| | - R Kasai
- Kawasaki Aortic Center, Kawasaki Saiwai Hospital, Kawasaki, Japan
| | - Y Mochida
- Kawasaki Aortic Center, Kawasaki Saiwai Hospital, Kawasaki, Japan
| | - K Ozaki
- Kawasaki Aortic Center, Kawasaki Saiwai Hospital, Kawasaki, Japan
| | - S Sasaguri
- Kawasaki Aortic Center, Kawasaki Saiwai Hospital, Kawasaki, Japan
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Kuji T, Fujikawa T, Shibata K, Satta H, Kawata SI, Kouguchi N, Shinzato T. FP681METHOD TO CALCULATE ESA DOSE TO ACHIEVE TARGET HAEMOGLOBIN LEVEL BY ANALYSING HAEMOGLOBIN KINETIC MODEL. Nephrol Dial Transplant 2015. [DOI: 10.1093/ndt/gfv182.29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Azushima K, Tamura K, Haku S, Wakui H, Kanaoka T, Ohsawa M, Uneda K, Kobayashi R, Ohki K, Dejima T, Maeda A, Hashimoto T, Oshikawa J, Kobayashi Y, Nomura K, Azushima C, Takeshita Y, Fujino R, Uchida K, Shibuya K, Ando D, Tokita Y, Fujikawa T, Toya Y, Umemura S. Effects of the oriental herbal medicine Bofu-tsusho-san in obesity hypertension: A multicenter, randomized, parallel-group controlled trial (ATH-D-14-01021.R2). Atherosclerosis 2015; 240:297-304. [DOI: 10.1016/j.atherosclerosis.2015.01.025] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Revised: 01/10/2015] [Accepted: 01/16/2015] [Indexed: 12/20/2022]
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Wakui H, Uneda K, Tamura K, Ohsawa M, Azushima K, Kobayashi R, Ohki K, Dejima T, Kanaoka T, Tsurumi-Ikeya Y, Matsuda M, Haruhara K, Nishiyama A, Yabana M, Fujikawa T, Yamashita A, Umemura S. Renal tubule angiotensin II type 1 receptor-associated protein promotes natriuresis and inhibits salt-sensitive blood pressure elevation. J Am Heart Assoc 2015; 4:e001594. [PMID: 25792129 PMCID: PMC4392439 DOI: 10.1161/jaha.114.001594] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
BACKGROUND Angiotensin II type 1 receptor (AT1R)-associated protein (ATRAP; Agtrap gene) promotes AT1R internalization along with suppression of pathological AT1R activation. In this study, we examined whether enhancement of ATRAP in the renal distal tubules affects sodium handling and blood pressure regulation in response to high salt (HS) loading, using ATRAP transgenic mice on a salt-sensitive C57BL/6J background. METHODS AND RESULTS Renal ATRAP transgenic (rATRAP-Tg) mice, which exhibit renal tubule-dominant ATRAP enhancement, and their wild-type littermate C57BL/6J mice on a normal salt diet (0.3% NaCl) at baseline were subjected to dietary HS loading (4% NaCl) for 7 days. In rATRAP-Tg mice, the dietary HS loading-mediated blood pressure elevation was suppressed compared with wild-type mice, despite similar baseline blood pressure. Although renal angiotensin II level was comparable in rATRAP-Tg and wild-type mice with and without HS loading, urinary sodium excretion in response to HS loading was significantly enhanced in the rATRAP-Tg mice. In addition, functional transport activity of the amiloride-sensitive epithelial Na(+) channel was significantly decreased under saline volume-expanded conditions in rATRAP-Tg mice compared with wild-type mice, without any evident change in epithelial Na(+) channel protein expression. Plasma membrane AT1R expression in the kidney of rATRAP-Tg mice was decreased compared with wild-type mice. CONCLUSIONS These results demonstrated that distal tubule-dominant enhancement of ATRAP inhibits pathological renal sodium reabsorption and blood pressure elevation in response to HS loading. The findings suggest that ATRAP-mediated modulation of sodium handling in renal distal tubules could be a target of interest in salt-sensitive blood pressure regulation.
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Affiliation(s)
- Hiromichi Wakui
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan (H.W., K.U., K.T., M.O., K.A., R.K., K.O., T.D., T.K., Y.T.I., M.M., K.H., M.Y., T.F., S.U.)
| | - Kazushi Uneda
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan (H.W., K.U., K.T., M.O., K.A., R.K., K.O., T.D., T.K., Y.T.I., M.M., K.H., M.Y., T.F., S.U.)
| | - Kouichi Tamura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan (H.W., K.U., K.T., M.O., K.A., R.K., K.O., T.D., T.K., Y.T.I., M.M., K.H., M.Y., T.F., S.U.)
| | - Masato Ohsawa
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan (H.W., K.U., K.T., M.O., K.A., R.K., K.O., T.D., T.K., Y.T.I., M.M., K.H., M.Y., T.F., S.U.)
| | - Kengo Azushima
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan (H.W., K.U., K.T., M.O., K.A., R.K., K.O., T.D., T.K., Y.T.I., M.M., K.H., M.Y., T.F., S.U.)
| | - Ryu Kobayashi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan (H.W., K.U., K.T., M.O., K.A., R.K., K.O., T.D., T.K., Y.T.I., M.M., K.H., M.Y., T.F., S.U.)
| | - Kohji Ohki
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan (H.W., K.U., K.T., M.O., K.A., R.K., K.O., T.D., T.K., Y.T.I., M.M., K.H., M.Y., T.F., S.U.)
| | - Toru Dejima
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan (H.W., K.U., K.T., M.O., K.A., R.K., K.O., T.D., T.K., Y.T.I., M.M., K.H., M.Y., T.F., S.U.)
| | - Tomohiko Kanaoka
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan (H.W., K.U., K.T., M.O., K.A., R.K., K.O., T.D., T.K., Y.T.I., M.M., K.H., M.Y., T.F., S.U.)
| | - Yuko Tsurumi-Ikeya
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan (H.W., K.U., K.T., M.O., K.A., R.K., K.O., T.D., T.K., Y.T.I., M.M., K.H., M.Y., T.F., S.U.)
| | - Miyuki Matsuda
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan (H.W., K.U., K.T., M.O., K.A., R.K., K.O., T.D., T.K., Y.T.I., M.M., K.H., M.Y., T.F., S.U.)
| | - Kotaro Haruhara
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan (H.W., K.U., K.T., M.O., K.A., R.K., K.O., T.D., T.K., Y.T.I., M.M., K.H., M.Y., T.F., S.U.)
| | - Akira Nishiyama
- Department of Pharmacology, Kagawa University School of Medicine, Kagawa, Japan (A.N.)
| | - Machiko Yabana
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan (H.W., K.U., K.T., M.O., K.A., R.K., K.O., T.D., T.K., Y.T.I., M.M., K.H., M.Y., T.F., S.U.)
| | - Tetsuya Fujikawa
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan (H.W., K.U., K.T., M.O., K.A., R.K., K.O., T.D., T.K., Y.T.I., M.M., K.H., M.Y., T.F., S.U.)
| | - Akio Yamashita
- Department of Molecular Biology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.Y.)
| | - Satoshi Umemura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan (H.W., K.U., K.T., M.O., K.A., R.K., K.O., T.D., T.K., Y.T.I., M.M., K.H., M.Y., T.F., S.U.)
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Fujikawa T, Takayama K. Spinal cord abscess and inflammatory bowel disease. QJM 2015; 108:253-4. [PMID: 25190264 DOI: 10.1093/qjmed/hcu181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- T Fujikawa
- Department of Internal Medicine, Seikeikai Hospital, 4-2-10 Koryo-Nakamachi, Sakai, Osaka 590-0024 and Department of Internal Medicine, Mitoyo General Hospital, 708 Himehama Toyohama, Kan-Onji, Kagawa 769-1601, Japan
| | - K Takayama
- Department of Orthopaedic Surgery, Seikeikai Hospital, 4-2-10 Koryo-Nakamachi, Sakai, Osaka 590-0024, Japan
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Fujikawa T, Yamamoto S, Sekine Y, Oshima S, Sasaguri S. Conventional total arch replacement in the endovascular era: 575 cases of single centre experience for six years. Heart Lung Circ 2015. [DOI: 10.1016/j.hlc.2014.12.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Niki K, Yamamura N, Ohori Y, Kazama M, Fujikawa T, Kövér L. Theoretical study of plasmon losses from Li 1s level in core-level photoemission spectra. SURF INTERFACE ANAL 2014. [DOI: 10.1002/sia.5504] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- K. Niki
- Graduate School of Advanced Integration Science; Chiba University; 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522 Japan
| | - N. Yamamura
- Graduate School of Advanced Integration Science; Chiba University; 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522 Japan
| | - Y. Ohori
- Graduate School of Advanced Integration Science; Chiba University; 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522 Japan
| | - M. Kazama
- Graduate School of Advanced Integration Science; Chiba University; 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522 Japan
| | - T. Fujikawa
- Graduate School of Advanced Integration Science; Chiba University; 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522 Japan
| | - L. Kövér
- Institute for Nuclear Research; Hungarian Academy of Sciences; 18/c Bem tér, H-4026 Debrecen Hungary
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Kuji T, Toya Y, Fujikawa T, Kakimoto-Shino M, Nishihara M, Shibata K, Tamura K, Hirawa N, Satta H, Kawata SI, Kouguchi N, Umemura S. Acceleration of iron utilization after intravenous iron administration during activated erythropoiesis in hemodialysis patients: a randomized study. Ther Apher Dial 2014; 19:131-7. [PMID: 25257861 DOI: 10.1111/1744-9987.12237] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This study aimed to evaluate the effect of different timings of iron administration during erythropoiesis activated by continuous erythropoietin receptor activator (CERA) on reticulocyte iron uptake in hemodialysis patients. In total, 110 patients were randomized to receive 40 mg intravenous elemental iron doses at all three hemodialysis sessions in the first week (IW1 group: n = 57) or in the third week (IW3 group: n = 53) after CERA administration. Following CERA administration at day 0, reticulocyte count increased, peaking at day 7. At days 7 and 14, the observed changes in Ret-He were higher in the IW1 group than in the IW3 group. Increases in total reticulocyte hemoglobin at day 7 were higher in the IW1 group than in the IW3 group. In contrast, there was only tendency toward greater total reticulocyte hemoglobin after iron administration in the third week in the IW3 group. Intravenous iron supplementation in the first week of CERA administration increases reticulocyte iron uptake; however, iron supplementation in the third week does not. The findings indicate that iron should be intravenously administered to increase the efficacy of CERA within 1 week of CERA administration during highly active erythropoiesis.
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Affiliation(s)
- Tadashi Kuji
- Yokodai Central Clinic, Yokohama, Kanagawa, Japan; Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine and School of Medicine, Yokohama, Kanagawa, Japan
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Fujikawa T. Operative Results and Clinical Features of Chronic Stanford Type B Aortic Dissection: The Examination of 234 Patients in Six Years. Eur J Vasc Endovasc Surg 2014. [DOI: 10.1016/j.ejvs.2014.06.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Locatelli F, Choukroun G, Fliser D, Moecks J, Wiggenhauser A, Gupta A, Swinkels DW, Lin V, Guss C, Pratt R, Carrilho P, Martins AR, Alves M, Mateus A, Gusmao L, Parreira L, Assuncao J, Rodrigues I, Stamopoulos D, Mpakirtzi N, Afentakis N, Grapsa E, Zitt E, Sturm G, Kronenberg F, Neyer U, Knoll F, Lhotta K, Weiss G, Robinson BM, Larkina M, Bieber B, Kleophas W, Li Y, Locatelli F, McCullough K, Nolen JG, Port FK, Pisoni RL, Kalicki RM, Uehlinger DE, Ogawa C, Kanda F, Tomosugi N, Maeda T, Kuji T, Fujikawa T, Shino M, Shibata K, Kaneda T, Nishihara M, Satta H, Kawata SI, Koguchi N, Tamura K, Hirawa N, Toya Y, Umemura S, Chanliau J, Martin H, Stamatelou K, Gonzalez-Tabares L, Manamley N, Farouk M, Addison J, Donck J, Schneider A, Gutjahr-Lengsfeld L, Ritz E, Scharnagl H, Gelbrich G, Pilz S, Macdougall IC, Wanner C, Drechsler C, Kuntsevich V, Charen E, Kobena D, Sheth N, Siktel H, Levin NW, Winchester JF, Kotanko P, Kaysen G, Kuragano T, Kida A, Yahiro M, Nanami M, Nagasawa Y, Hasuike Y, Nakanishi T, Stamopoulos D, Mpakirtzi N, Dimitratou V, Griveas I, Lianos E, Grapsa E, Sasaki Y, Yamazaki S, Fujita K, Kurasawa M, Yorozu K, Shimonaka Y, Suzuki N, Yamamoto M, Zwiech R, Szczepa ska J, Bruzda-Zwiech A, Rao A, Gilg J, Caskey F, Kirkpantur A, Balci MM, Turkvatan A, Afsar B, Alkis M, Mandiroglu F, Kim YO, Yoon SA, Kim YS, Choi SJ, Min JW, Cheong MA, Hasuike Y, Kida A, Oue M, Yamamoto K, Kimura T, Fukao W, Yahiro M, Kaibe S, Nanami M, Nakanishi T, Djuric PS, Ikonomovski J, Tosic J, Jankovic A, Majster Z, Stankovic Popovic V, Dimkovic N, Aicardi Spalloni V, Del Vecchio L, Longhi S, Violo L, La Milia V, Pontoriero G, Locatelli F, Shino M, Kuji T, Fujikawa T, Toya Y, Umemura S, Macdougall I, Rumjon A, Mangahis E, Goldstein L, Ryzlewicz T, Becker F, Kilgallon W, Fukasawa M, Otake Y, Yamagishi T, Kamiyama M, Kobayashi H, Takeda M, Toida T, Sato Y, Fujimoto S. DIALYSIS ANAEMIA. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Ochiai T, Shioya A, Honma H, Saitoh Y, Matsumura S, Ban D, Irie T, Kudo A, Nakamura N, Fujikawa T, Itai A, Tanaka S, Arii S, Yamaoka S, Tanabe M. Combination Treatment of IκB Kinase β Inhibitor IMD-0354 and Gemcitabine Suppresses Oncogenic Proliferation of Pancreatic Cancer Cells. J Surg Res 2014. [DOI: 10.1016/j.jss.2013.11.157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Kakimoto-Shino M, Toya Y, Kuji T, Fujikawa T, Umemura S. Changes in Hepcidin and Reticulocyte Hemoglobin Equivalent Levels in Response to Continuous Erythropoietin Receptor Activator Administration in Hemodialysis Patients: A Randomized Study. Ther Apher Dial 2014; 18:421-6. [DOI: 10.1111/1744-9987.12161] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Midori Kakimoto-Shino
- Department of Medical Science and Cardiorenal Medicine; Yokohama City University Graduate School of Medicine; Yokohama Kanagawa Japan
| | - Yoshiyuki Toya
- Department of Medical Science and Cardiorenal Medicine; Yokohama City University Graduate School of Medicine; Yokohama Kanagawa Japan
| | - Tadashi Kuji
- Department of Medical Science and Cardiorenal Medicine; Yokohama City University Graduate School of Medicine; Yokohama Kanagawa Japan
- Yokodai Central Clinic; Yokohama Kanagawa Japan
| | - Tetsuya Fujikawa
- Department of Medical Science and Cardiorenal Medicine; Yokohama City University Graduate School of Medicine; Yokohama Kanagawa Japan
- Center for Health Service Sciences; Yokohama National University; Yokohama Kanagawa Japan
| | - Satoshi Umemura
- Department of Medical Science and Cardiorenal Medicine; Yokohama City University Graduate School of Medicine; Yokohama Kanagawa Japan
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Yokomatsu A, Fujikawa T, Toya Y, Shino-Kakimoto M, Itoh Y, Mitsuhashi H, Tamura K, Hirawa N, Yasuda G, Umemura S. Loss of Amino Acids Into Dialysate During Hemodialysis Using Hydrophilic and Nonhydrophilic Polyester-Polymer Alloy and Polyacrylonitrile Membrane Dialyzers. Ther Apher Dial 2013; 18:340-6. [DOI: 10.1111/1744-9987.12145] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Atsuko Yokomatsu
- Department of Medical Science and Cardiorenal Medicine; Yokohama City University Graduate School of Medicine; Yokohama Japan
| | - Tetsuya Fujikawa
- Department of Medical Science and Cardiorenal Medicine; Yokohama City University Graduate School of Medicine; Yokohama Japan
- Center for Health Service Sciences; Yokohama National University; Yokohama Japan
| | - Yoshiyuki Toya
- Department of Medical Science and Cardiorenal Medicine; Yokohama City University Graduate School of Medicine; Yokohama Japan
| | - Midori Shino-Kakimoto
- Department of Medical Science and Cardiorenal Medicine; Yokohama City University Graduate School of Medicine; Yokohama Japan
| | - Yoko Itoh
- Department of Medical Science and Cardiorenal Medicine; Yokohama City University Graduate School of Medicine; Yokohama Japan
| | - Hiroshi Mitsuhashi
- Department of Medical Science and Cardiorenal Medicine; Yokohama City University Graduate School of Medicine; Yokohama Japan
| | - Kouichi Tamura
- Department of Medical Science and Cardiorenal Medicine; Yokohama City University Graduate School of Medicine; Yokohama Japan
| | - Nobuhito Hirawa
- Division of Nephrology and Hypertension; Yokohama City University Medical Center; Yokohama Japan
| | - Gen Yasuda
- Division of Nephrology and Hypertension; Yokohama City University Medical Center; Yokohama Japan
| | - Satoshi Umemura
- Department of Medical Science and Cardiorenal Medicine; Yokohama City University Graduate School of Medicine; Yokohama Japan
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Azushima K, Tamura K, Wakui H, Maeda A, Ohsawa M, Uneda K, Kobayashi R, Kanaoka T, Dejima T, Fujikawa T, Yamashita A, Toya Y, Umemura S. Bofu-tsu-shosan, an oriental herbal medicine, exerts a combinatorial favorable metabolic modulation including antihypertensive effect on a mouse model of human metabolic disorders with visceral obesity. PLoS One 2013; 8:e75560. [PMID: 24130717 PMCID: PMC3794018 DOI: 10.1371/journal.pone.0075560] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2013] [Accepted: 08/13/2013] [Indexed: 11/19/2022] Open
Abstract
Accumulating evidence indicates that metabolic dysfunction with visceral obesity is a major medical problem associated with the development of hypertension, type 2 diabetes (T2DM) and dyslipidemia, and ultimately severe cardiovascular and renal disease. Therefore, an effective anti-obesity treatment with a concomitant improvement in metabolic profile is important for the treatment of metabolic dysfunction with visceral obesity. Bofu-tsu-shosan (BOF) is one of oriental herbal medicine and is clinically available to treat obesity in Japan. Although BOF is a candidate as a novel therapeutic strategy to improve metabolic dysfunction with obesity, the mechanism of its beneficial effect is not fully elucidated. Here, we investigated mechanism of therapeutic effects of BOF on KKAy mice, a model of human metabolic disorders with obesity. Chronic treatment of KKAy mice with BOF persistently decreased food intake, body weight gain, low-density lipoprotein cholesterol and systolic blood pressure. In addition, both tissue weight and cell size of white adipose tissue (WAT) were decreased, with concomitant increases in the expression of adiponectin and peroxisome proliferator-activated receptors genes in WAT as well as the circulating adiponectin level by BOF treatment. Furthermore, gene expression of uncoupling protein-1, a thermogenesis factor, in brown adipose tissue and rectal temperature were both elevated by BOF. Intriguingly, plasma acylated-ghrelin, an active form of orexigenic hormone, and short-term food intake were significantly decreased by single bolus administration of BOF. These results indicate that BOF exerts a combinatorial favorable metabolic modulation including antihypertensive effect, at least partially, via its beneficial effect on adipose tissue function and its appetite-inhibitory property through suppression on the ghrelin system.
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Affiliation(s)
- Kengo Azushima
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kouichi Tamura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
- * E-mail:
| | - Hiromichi Wakui
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Akinobu Maeda
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Masato Ohsawa
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kazushi Uneda
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Ryu Kobayashi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Tomohiko Kanaoka
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Toru Dejima
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Tetsuya Fujikawa
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Akio Yamashita
- Department of Molecular Biology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Yoshiyuki Toya
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Satoshi Umemura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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Fujikawa T. 294 * OPEN AORTIC REPAIR FOR THORACOABDOMINAL AORTIC ANEURYSM: A SINGLE-CENTRE FIVE-YEAR EXPERIENCE WITH 250 CASES. Interact Cardiovasc Thorac Surg 2013. [DOI: 10.1093/icvts/ivt372.294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Kanaoka T, Tamura K, Wakui H, Ohsawa M, Azushima K, Uneda K, Kobayashi R, Fujikawa T, Tsurumi-Ikeya Y, Maeda A, Yanagi M, Toya Y, Umemura S. L/N-type calcium channel blocker cilnidipine added to renin-angiotensin inhibition improves ambulatory blood pressure profile and suppresses cardiac hypertrophy in hypertension with chronic kidney disease. Int J Mol Sci 2013; 14:16866-81. [PMID: 23959116 PMCID: PMC3759940 DOI: 10.3390/ijms140816866] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Revised: 08/09/2013] [Accepted: 08/12/2013] [Indexed: 01/22/2023] Open
Abstract
Ambulatory blood pressure (BP) and heart rate (HR) profile are proposed to be related to renal deterioration and cardiovascular complication in hypertension and chronic kidney disease (CKD). In this study, we examined the beneficial effects cilnidipine, a unique L/N-type calcium channel blocker (CCB), in addition to renin-angiotensin system inhibitors, on ambulatory BP and HR profile, as well as cardiorenal function in hypertensive CKD patients. Forty-five patients were randomly assigned to the cilnidipine replacement group (n = 21) or the control CCBs group (n = 24) during a 24-week active treatment period. Although clinical BP values were similar in the cilnidipine and control CCBs groups after the treatment period, the results of ambulatory BP monitoring showed that the 24-h and daytime systolic BP levels in the cilnidipine group were significantly lower compared with the control group after the study. Furthermore, the left ventricular mass index (LVMI) was significantly decreased in the cilnidipine group compared to the control group after the study (LVMI, 135.3 ± 26.4 versus 181.2 ± 88.4, p = 0.031), with a significant difference in the changes in the LVMI between the cilnidipine and control groups (change in LVMI, −12.4 ± 23.7 versus 26.2 ± 64.4, p = 0.007). These results indicate that cilnidipine is beneficial for the suppression of pathological cardiac remodeling, at least partly, via a superior improving effect on ambulatory BP profile compared with control CCBs in hypertensive CKD patients.
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Affiliation(s)
| | - Kouichi Tamura
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +81-45-787-2635 (ext. 6326); Fax: +81-45-701-3738
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Yamaguchi T, Nakaoka H, Yamamoto K, Fujikawa T, Kim Y, Yano K, Haga S, Katayama K, Shibusawa T, Park SB, Maki K, Kimura R, Inoue I. Genome‐wide association study of degenerative bony changes of the temporomandibular joint. Oral Dis 2013; 20:409-15. [DOI: 10.1111/odi.12141] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Revised: 05/07/2013] [Accepted: 05/18/2013] [Indexed: 01/05/2023]
Affiliation(s)
- T Yamaguchi
- Department of Orthodontics School of Dentistry Showa University TokyoJapan
| | - H Nakaoka
- Division of Human Genetics National Institute of Genetics ShizuokaJapan
| | - K Yamamoto
- Division of Genome Analysis Research Center for Genetic Information Medical Institute of Bioregulation Kyushu University Fukuoka Japan
| | - T Fujikawa
- Department of Orthodontics School of Dentistry Showa University TokyoJapan
| | - Y‐I Kim
- Department of Orthodontics Pusan National University Dental Hospital Yangsan Korea
| | - K Yano
- Verde Orthodontic Dental Clinic TokyoJapan
| | - S Haga
- Department of Orthodontics School of Dentistry Showa University TokyoJapan
| | - K Katayama
- Department of Orthodontics School of Dentistry Showa University TokyoJapan
| | - T Shibusawa
- Department of Orthodontics School of Dentistry Showa University TokyoJapan
| | - SB Park
- Department of Orthodontics Pusan National University Dental Hospital Yangsan Korea
| | - K Maki
- Department of Orthodontics School of Dentistry Showa University TokyoJapan
| | - R Kimura
- Faculty of Medicine University of the Ryukyus Okinawa Japan
| | - I Inoue
- Division of Human Genetics National Institute of Genetics ShizuokaJapan
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Mikhail A, Kaplan M, Macdougall I, Schmidt RJ, Rastogi A, Wang W, Tong S, Mayo M, Oestreicher N, Schiller B, Green JM, Verma R, Leu K, Mortensen RB, Young PR, Schatz P, Wojchowski DM, Shimonaka Y, Sasaki Y, Yorozu K, Sasaki MN, Ikuta K, Kohgo Y, Shimonaka Y, Sasaki Y, Omori YM, Yorozu K, Hiramatsu M, Momoki N, Kakio Y, Shibuto N, Takeuchi H, Fukumoto M, Maruyama K, Matsuo Y, Sasaki Y, Omori Y, Yorozu K, Shimonaka Y, Robinson BM, Larkina M, Goodkin DA, Li Y, Locatelli F, Nolen J, Kleophas W, Pisoni RL, Sibbel S, Brunelli S, Krishnan M, Horie M, Hasegawa E, Minoshima KI, Shimonaka Y, Ambrus C, Kerkovits L, Szegedi J, Benke A, Toth E, Nagy L, Borbas B, Rozinka A, Nemeth J, Varga G, Kulcsar I, Gergely L, Szakony S, Kiss I, Danielson K, Qureshi AR, Heimburger O, Stenvinkel P, Lindholm B, Hylander-Rossner B, Germanis G, Hansson M, Beshara S, Barany P, Dueymes JM, Kolko A, Couchoud C, Combe C, Covic A, Goldsmith D, Zaoui P, Gesualdo L, London G, Dellanna F, Mann J, Turner M, Muenzberg M, MacDonald K, Denhaerynck K, Abraham I, Sanchez MB, Casero RC, Ortiz RV, Carmelo IG, Munoz SC, Gomez ER, Rodriguez CS, Kuji T, Fujikawa T, Kakimoto-Shino M, Shibata K, Toya Y, Umemura S, Topuzovic N, Mihaljevic I, Rupcic V, Sterner G, Clyne N, Mann J, Dellanna F, London G, Combe C, Covic A, Gesualdo L, Goldsmith D, Zaoui P, Turner M, Muenzberg M, MacDonald K, Denhaerynck K, Abraham I, Toblli J, Di Gennaro F, Chmielewski M, Jagodzinski P, Lichodziejewska-Niemierko M, Rutkowski B, Takasawa K, Takaeda C, Ueda H, Higuchi M, Maeda T, Tomosugi N, Moghazy TF, Jakic M, Zibar L, Romei Longhena G, Beck W, Liebchen A, Teatini U, Rottembourg JB, Guerin A, Diaconita M, Dansaert A, Koike K, Fukami K, Shimamatsu K, Kawaguchi A, Okuda S. Anaemia in CKD 5D. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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