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Ishikawa K, Maeda T, Funayama E, Murao N, Miura T, Sasaki Y, Seo D, Mitamura S, Oide S, Yamamoto Y, Sasaki S. Fluoroscopy- and Endoscopy-Guided Transoral Sclerotherapy Using Foamed Polidocanol for Oropharyngolaryngeal Venous Malformations in a Hybrid Operation Room: A Case Series. J Clin Med 2024; 13:2369. [PMID: 38673643 PMCID: PMC11050875 DOI: 10.3390/jcm13082369] [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: 02/19/2024] [Revised: 04/16/2024] [Accepted: 04/16/2024] [Indexed: 04/28/2024] Open
Abstract
Background: Treatment of oropharyngolaryngeal venous malformations (VMs) remains challenging. This study evaluated the effectiveness and safety of fluoroscopy- and endoscopy-guided transoral sclerotherapy for oropharyngolaryngeal VMs in a hybrid operation room (OR). Methods: Patients with oropharyngolaryngeal VMs who underwent transoral sclerotherapy in a hybrid OR were enrolled. Results: Fourteen patients (six females, eight males; median age of 26 years; range, 4-71 years) were analyzed. The symptoms observed were breathing difficulties (n = 3), snoring (n = 2), sleep apnea (n = 1), and swallowing difficulties (n = 1). Lesions were extensive in the face and neck (n = 9) and limited in the oropharyngolarynx (n = 5). A permanent tracheostomy was performed on two patients, while a temporary tracheostomy was performed on five patients. The treated regions were the soft palate (n = 8), pharynx (n = 7), base of the tongue (n = 4), and epiglottis (n = 1). The median number of sclerotherapy sessions was 2.5 (range, 1-9). The median follow-up duration was 81 months (range, 6-141). Treatment outcomes were graded as excellent (n = 2), good (n = 7), or fair (n = 5). The post-treatment complication was bleeding (n = 1), resulting in an urgent tracheostomy. Conclusions: Fluoroscopy- and endoscopy-guided transoral sclerotherapy in a hybrid OR can be effective and safe for oropharyngolaryngeal VMs.
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Affiliation(s)
- Kosuke Ishikawa
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan; (T.M.); (Y.S.); (D.S.); (S.M.); (S.O.)
- Center for Vascular Anomalies, Department of Plastic and Reconstructive Surgery, Tonan Hospital, Sapporo 060-0004, Japan
| | - Taku Maeda
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan; (T.M.); (Y.S.); (D.S.); (S.M.); (S.O.)
| | - Emi Funayama
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan; (T.M.); (Y.S.); (D.S.); (S.M.); (S.O.)
| | - Naoki Murao
- Center for Vascular Anomalies, Department of Plastic and Reconstructive Surgery, Tonan Hospital, Sapporo 060-0004, Japan
| | - Takahiro Miura
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan; (T.M.); (Y.S.); (D.S.); (S.M.); (S.O.)
| | - Yuki Sasaki
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan; (T.M.); (Y.S.); (D.S.); (S.M.); (S.O.)
- Center for Vascular Anomalies, Department of Plastic and Reconstructive Surgery, Tonan Hospital, Sapporo 060-0004, Japan
| | - Dongkyung Seo
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan; (T.M.); (Y.S.); (D.S.); (S.M.); (S.O.)
- Center for Vascular Anomalies, Department of Plastic and Reconstructive Surgery, Tonan Hospital, Sapporo 060-0004, Japan
| | - Shintaro Mitamura
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan; (T.M.); (Y.S.); (D.S.); (S.M.); (S.O.)
- Center for Vascular Anomalies, Department of Plastic and Reconstructive Surgery, Tonan Hospital, Sapporo 060-0004, Japan
| | - Shunichi Oide
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan; (T.M.); (Y.S.); (D.S.); (S.M.); (S.O.)
- Center for Vascular Anomalies, Department of Plastic and Reconstructive Surgery, Tonan Hospital, Sapporo 060-0004, Japan
| | - Yuhei Yamamoto
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan; (T.M.); (Y.S.); (D.S.); (S.M.); (S.O.)
| | - Satoru Sasaki
- Center for Vascular Anomalies, Department of Plastic and Reconstructive Surgery, Tonan Hospital, Sapporo 060-0004, Japan
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Abe Y, Kikuchi R, Sasaki Y, Mizumoto N, Yagi M, Onozato Y, Watabe T, Goto H, Miura T, Sato R, Ito M, Tsuchiya H, Ueno Y. Long-term course of untreated asymptomatic esophageal eosinophilia and minimally symptomatic eosinophilic esophagitis. Endosc Int Open 2024; 12:E545-E553. [PMID: 38628394 PMCID: PMC11018394 DOI: 10.1055/a-2280-8277] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 01/04/2024] [Indexed: 04/19/2024] Open
Abstract
Background and study aims The long-term course of untreated asymptomatic esophageal eosinophilia (aEE) and minimally symptomatic eosinophilic esophagitis (mEoE) are not well understood. This study aimed to clarify this course. Patients and methods A total of 36 patients with EE who were endoscopically followed up for more than 5 years, and who underwent more than one endoscopy evaluation after the first diagnosis, were investigated. These patients were divided into two groups according to the presence or absence of the continuous treatment: no treatment group (NT group, n=22) and proton pump inhibitor/potassium competitive acid blocker group (Tx group, n=14). Symptoms and endoscopic and histological findings were retrospectively reviewed according to endoscopic phenotypes. Endoscopic assessment was performed using the EoE endoscopic reference score (EREFS). Results The median follow-up period was 84.5 months in the Tx group and 92 months in the NT group. During the follow-up period, about half of the patients in the Tx-diffuse group persisted EREFS >3, while the remaining half had EREFS ≤2. The total EREFS in the NT-diffuse group remained almost unchanged (median: 2-4) without apparent exacerbation. In contrast, EREFS in the NT-localized group exhibited an unchanged or gradually decreasing trend, with statistical significance from the first diagnosis to 72 to 83 months after. Conclusions Untreated aEE and mEoE are not likely to worsen even without treatment at least for a median follow-up of 7 years. Instead, the localized type may spontaneously improve, implying a different pathogenesis in the presence of the diffuse type. Further studies should clarify the long-term prognosis.
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Affiliation(s)
- Yasuhiko Abe
- Division of Endoscopy, Yamagata University Hospital, Yamagata, Japan
| | - Ryosuke Kikuchi
- Department of Gastroenterology, JR Sendai Hospital, Sendai, Japan
| | - Yu Sasaki
- Department of Gastroenterology, Yamagata Daigaku Igakubu Daigakuin Igakukei Kenkyuka, Yamagata, Japan
| | - Naoko Mizumoto
- Department of Gastroenterology, Yamagata Daigaku Igakubu Daigakuin Igakukei Kenkyuka, Yamagata, Japan
| | - Makoto Yagi
- Department of Gastroenterology, Yamagata Daigaku Igakubu Daigakuin Igakukei Kenkyuka, Yamagata, Japan
| | - Yusuke Onozato
- Department of Gastroenterology, Yamagata Daigaku Igakubu Daigakuin Igakukei Kenkyuka, Yamagata, Japan
| | - Takahiro Watabe
- Department of Gastroenterology, Yamagata Daigaku Igakubu Daigakuin Igakukei Kenkyuka, Yamagata, Japan
| | - Hiroki Goto
- Department of Gastroenterology, Yamagata Daigaku Igakubu Daigakuin Igakukei Kenkyuka, Yamagata, Japan
| | - Takahiro Miura
- Department of Gastroenterology, Yamagata Daigaku Igakubu Daigakuin Igakukei Kenkyuka, Yamagata, Japan
| | - Ryou Sato
- Department of Gastroenterology, Yamagata Daigaku Igakubu Daigakuin Igakukei Kenkyuka, Yamagata, Japan
| | - Minami Ito
- Department of Gastroenterology, Yamagata Daigaku Igakubu Daigakuin Igakukei Kenkyuka, Yamagata, Japan
| | - Hiroko Tsuchiya
- Department of Gastroenterology, Yamagata Daigaku Igakubu Daigakuin Igakukei Kenkyuka, Yamagata, Japan
| | - Yoshiyuki Ueno
- Department of Gastroenterology, Yamagata Daigaku Igakubu Daigakuin Igakukei Kenkyuka, Yamagata, Japan
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Kusajima EG, Yamamoto Y, Ishikawa K, Miura T, Funayama E, Osawa M, Takagi R, Maeda T. Sentinel node restoration by vascularized lymph node transfer in mice. Microsurgery 2024; 44:e30981. [PMID: 36321604 DOI: 10.1002/micr.30981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 09/30/2022] [Accepted: 10/21/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Recent reports have indicated that vascularized lymph node transfer (VLNT) may improve the impaired immunity in lymphedema but there has been no report concerning anti-cancer immunity. In the early tumor immune response, dendritic cells (DCs) participate in tumor recognition and antigen presentation in local lymphatics. Here, we investigated the impact of VLNT on DC dynamics against cancer in mouse models. METHODS Forty-seven 8-week-old C57BL/6 N male mice were divided into three surgical groups: a VLNT model in which a vascularized inguinal lymph node (LN) flap was transferred into the ipsilateral fossa after a popliteal LN was removed; a LN dissection (LND) model in which the popliteal LN was dissected; and a control model in which a skin incision was made at the popliteal fossa and an ipsilateral inguinal LN was removed. Postoperative lymphatic flows were observed by indocyanine green lymphography and B16-F10-luc2 mouse melanoma were implanted into the ipsilateral footpad. The proportion of DCs in the transplanted nodes was measured by CD11c immunohistochemistry using digital imaging analysis 4 days after cancer implantation. Metastases to the lungs and LNs were quantitatively evaluated by luciferase assay 4 weeks after cancer implantation. RESULTS After VLNT, lymphatic reconnection was observed in 59.2% of mice. The proportion of DCs was significantly higher in the VLNT group with lymphatic reconnection (8.6% ± 1.0%) than in the naïve LN (4.3% ± 0.4%) (p < .001). The tumor burden of lung metastases was significantly less in the VLNT group with lymphatic reconnection compared with the LND group (p = .049). CONCLUSIONS Metastasis decreased in mice with reconnected lymphatics after VLNT. A possible explanation was that lymphatic restoration may have contributed to the tumor immune response by allowing DC migration to LNs.
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Affiliation(s)
- Erika G Kusajima
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Yuhei Yamamoto
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Kosuke Ishikawa
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Takahiro Miura
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Emi Funayama
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Masayuki Osawa
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Ryo Takagi
- Department of Biostatistics, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Taku Maeda
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
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Muraoka Y, Miura T, Miyagi M, Okazaki T, Katsumata T, Obata K, Ebihara S. Geriatric Nutritional Risk Index Predicts High Activities of Daily Living at Discharge in Older Patients with Heart Failure after Cardiac Rehabilitation. J Clin Med 2023; 12:7662. [PMID: 38137731 PMCID: PMC10743407 DOI: 10.3390/jcm12247662] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/06/2023] [Accepted: 12/10/2023] [Indexed: 12/24/2023] Open
Abstract
BACKGROUND Hospitalization often leads to a decline in activities of daily living (ADL) in older patients with heart failure. Although cardiac rehabilitation (CR) improves ADL, it can be difficult to perform CR due to the deconditioning of these patients. This study aimed to examine the factors associated with ADL at discharge in older patients with heart failure who underwent CR. METHODS A total of 86 of 110 older heart failure patients aged ≥ 75 years (average age, 86.9 ± 5.7 years) transferred to our institution for CR were enrolled and classified into high ADL at discharge (n = 54) and low ADL at discharge (n = 32) groups. Physical characteristics, comorbidities, medications, blood test data, echocardiographic data, and nutritional status (Geriatric Nutritional Risk Index [GNRI]) were retrospectively examined from medical records. ADL were assessed using the Barthel Index (BI) at admission and discharge. Considering multicollinearity, the relationship between high ADL (BI ≥ 60) at discharge and these assessments at admission was analyzed using multiple logistic regression analysis. The receiver operating characteristic curve was analyzed to calculate the cutoff values for the parameters identified by the multiple logistic regression analysis. RESULTS The GNRI was the only independent factor predicting high ADL at discharge (p = 0.041; odds ratio [OR], 1.125; 95% confidence interval [CI], 1.005-1.260). The area under the receiver operating characteristic curve for the GNRI was 0.770 (95% CI, 0.664-0.876). The cutoff value for the GNRI was 83.4 (sensitivity, 85.2%; specificity, 62.5%). CONCLUSION These findings suggest that the GNRI score at admission predicts high ADL at discharge in older patients with heart failure who underwent CR.
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Affiliation(s)
| | | | | | | | | | | | - Satoru Ebihara
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai 980-8574, Japan; (Y.M.); (T.M.); (M.M.); (T.O.); (T.K.); (K.O.)
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Namai-Takahashi A, Takahashi J, Ogawa Y, Sakuyama A, Xu L, Miura T, Kohzuki M, Ito O. Effects of Exercise Training on Mitochondrial Fatty Acid β-Oxidation in the Kidneys of Dahl Salt-Sensitive Rats. Int J Mol Sci 2023; 24:15601. [PMID: 37958585 PMCID: PMC10649976 DOI: 10.3390/ijms242115601] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 10/21/2023] [Accepted: 10/24/2023] [Indexed: 11/15/2023] Open
Abstract
Exercise training (Ex) has anti-hypertensive and renal protective effects. In this study, we investigate the effects of Ex on mitochondrial fatty acid metabolism in the kidneys of Dahl salt-sensitive (Dahl-S) rats fed a high-salt (HS) diet. Eight-week-old, male Dahl-S rats were divided into three groups: (1) normal-salt diet, sedentary (NS-Sed), (2) HS diet, sedentary (HS-Sed), and (3) HS-Ex. The NS and HS groups were fed a diet containing 0.6% and 8% NaCl, respectively. The HS-Ex group performed treadmill running for 8 weeks (5 days/week; 60 min/day at 16-20 m/min, 0% gradient). Renal function and the expression of enzymes and regulators of β-oxidation and electron transport chain (ETC) complexes were assessed. HS increased systolic blood pressure and proteinuria, and Ex ameliorated these defects. HS also reduced creatinine clearance, and Ex ameliorated it. HS reduced the renal expression of enzymes of β-oxidation (carnitine palmitoyltransferase type I (CPTI) and acyl-CoA dehydrogenases (CADs)) and the related transcription factors peroxisome proliferator-activated receptor α (PPARα) and PPARγ-coactivator-1α (PGC-1α), and Ex restored this. HS also reduced the renal expression of enzymes in ETC complexes, and Ex restored this expression. Ex ameliorates HS-induced renal damage by upregulating enzymes involved in fatty acid β-oxidation and ETC complexes via increases in PPAR-α and PGC-1α expressions in the kidneys of Dahl-S rats. These results suggest that Ex may have beneficial effects on HS-induced mitochondrial dysfunction in the kidney.
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Affiliation(s)
- Asako Namai-Takahashi
- Division of General Medicine and Rehabilitation, Faculty of Medicine, Tohoku Medical Pharmaceutical University, Sendai 981-8558, Japan
| | - Junta Takahashi
- Department of Internal Medicine and Rehabilitation Science, Graduate School of Medicine, Tohoku University, Sendai 980-8575, Japan
| | - Yoshiko Ogawa
- Department of Internal Medicine and Rehabilitation Science, Graduate School of Medicine, Tohoku University, Sendai 980-8575, Japan
| | - Akihiro Sakuyama
- Department of Internal Medicine and Rehabilitation Science, Graduate School of Medicine, Tohoku University, Sendai 980-8575, Japan
| | - Lusi Xu
- Division of General Medicine and Rehabilitation, Faculty of Medicine, Tohoku Medical Pharmaceutical University, Sendai 981-8558, Japan
| | - Takahiro Miura
- Department of Internal Medicine and Rehabilitation Science, Graduate School of Medicine, Tohoku University, Sendai 980-8575, Japan
| | - Masahiro Kohzuki
- Department of Internal Medicine and Rehabilitation Science, Graduate School of Medicine, Tohoku University, Sendai 980-8575, Japan
| | - Osamu Ito
- Division of General Medicine and Rehabilitation, Faculty of Medicine, Tohoku Medical Pharmaceutical University, Sendai 981-8558, Japan
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Sasaki Y, Ishikawa K, Miura T, Funayama E, Yamamoto Y, Maeda T. Partially involuting congenital hemangioma with pyogenic granuloma-induced rapid progression following incisional biopsy in infancy: A case report. Clin Case Rep 2023; 11:e7941. [PMID: 37854254 PMCID: PMC10580700 DOI: 10.1002/ccr3.7941] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/01/2023] [Accepted: 09/12/2023] [Indexed: 10/20/2023] Open
Abstract
We present a case of partially involuting congenital hemangioma (PICH) that showed rapid growth with ulceration after incisional biopsy. PICH does not typically grow after birth. However, if growth occurs due to stimuli like biopsy, it is essential to consider the possibility of pyogenic granuloma complication.
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Affiliation(s)
- Yuki Sasaki
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of MedicineHokkaido UniversitySapporoJapan
| | - Kosuke Ishikawa
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of MedicineHokkaido UniversitySapporoJapan
| | - Takahiro Miura
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of MedicineHokkaido UniversitySapporoJapan
| | - Emi Funayama
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of MedicineHokkaido UniversitySapporoJapan
| | - Yuhei Yamamoto
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of MedicineHokkaido UniversitySapporoJapan
| | - Taku Maeda
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of MedicineHokkaido UniversitySapporoJapan
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Sasaki Y, Ishikawa K, Hatanaka KC, Oyamada Y, Sakuhara Y, Shimizu T, Saito T, Murao N, Onodera T, Miura T, Maeda T, Funayama E, Hatanaka Y, Yamamoto Y, Sasaki S. Targeted next-generation sequencing for detection of PIK3CA mutations in archival tissues from patients with Klippel-Trenaunay syndrome in an Asian population : List the full names and institutional addresses for all authors. Orphanet J Rare Dis 2023; 18:270. [PMID: 37667289 PMCID: PMC10478188 DOI: 10.1186/s13023-023-02893-1] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 08/26/2023] [Indexed: 09/06/2023] Open
Abstract
BACKGROUND Klippel-Trenaunay syndrome (KTS) is a rare slow-flow combined vascular malformation with limb hypertrophy. KTS is thought to lie on the PIK3CA-related overgrowth spectrum, but reports are limited. PIK3CA encodes p110α, a catalytic subunit of phosphatidylinositol 3-kinase (PI3K) that plays an essential role in the PI3K/AKT/mammalian target of rapamycin (mTOR) signaling pathway. We aimed to demonstrate the clinical utility of targeted next-generation sequencing (NGS) in identifying PIK3CA mosaicism in archival formalin-fixed paraffin-embedded (FFPE) tissues from patients with KTS. RESULTS Participants were 9 female and 5 male patients with KTS diagnosed as capillaro-venous malformation (CVM) or capillaro-lymphatico-venous malformation (CLVM). Median age at resection was 14 years (range, 5-57 years). Median archival period before DNA extraction from FFPE tissues was 5.4 years (range, 3-7 years). NGS-based sequencing of PIK3CA achieved an amplicon mean coverage of 119,000x. PIK3CA missense mutations were found in 12 of 14 patients (85.7%; 6/8 CVM and 6/6 CLVM), with 8 patients showing the hotspot variants E542K, E545K, H1047R, and H1047L. The non-hotspot PIK3CA variants C420R, Q546K, and Q546R were identified in 4 patients. Overall, the mean variant allele frequency for identified PIK3CA variants was 6.9% (range, 1.6-17.4%). All patients with geographic capillary malformation, histopathological lymphatic malformation or macrodactyly of the foot had PIK3CA variants. No genotype-phenotype association between hotspot and non-hotspot PIK3CA variants was found. Histologically, the vessels and adipose tissues of the lesions showed phosphorylation of the proteins in the PI3K/AKT/mTOR signaling pathway, including p-AKT, p-mTOR, and p-4EBP1. CONCLUSIONS The PI3K/AKT/mTOR pathway in mesenchymal tissues was activated in patients with KTS. Amplicon-based targeted NGS could identify low-level mosaicism from low-input DNA extracted from FFPE tissues, potentially providing a diagnostic option for personalized medicine with inhibitors of the PI3K/AKT/mTOR signaling pathway.
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Affiliation(s)
- Yuki Sasaki
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo, 060-8638, Japan
- Center for Vascular Anomalies, Department of Plastic and Reconstructive Surgery, Tonan Hospital, Hokkaido, Japan
| | - Kosuke Ishikawa
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo, 060-8638, Japan.
- Center for Vascular Anomalies, Department of Plastic and Reconstructive Surgery, Tonan Hospital, Hokkaido, Japan.
| | - Kanako C Hatanaka
- Center for Development of Advanced Diagnostics, Institute of Health Science Innovation for Medical Care, Hokkaido University Hospital, Hokkaido, Japan
| | - Yumiko Oyamada
- Department of Diagnostic Pathology, Tonan Hospital, Hokkaido, Japan
| | - Yusuke Sakuhara
- Department of Diagnostic and Interventional Radiology, Tonan Hospital, Hokkaido, Japan
| | - Tadashi Shimizu
- Department of Diagnostic and Interventional Radiology, Tonan Hospital, Hokkaido, Japan
| | - Tatsuro Saito
- Research Division of Genome Companion Diagnostics, Hokkaido University Hospital, Hokkaido, Japan
- Riken Genesis Co., Ltd, Tokyo, Japan
| | - Naoki Murao
- Center for Vascular Anomalies, Department of Plastic and Reconstructive Surgery, Tonan Hospital, Hokkaido, Japan
| | - Tomohiro Onodera
- Department of Orthopedic Surgery, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, Hokkaido, Japan
| | - Takahiro Miura
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo, 060-8638, Japan
| | - Taku Maeda
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo, 060-8638, Japan
| | - Emi Funayama
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo, 060-8638, Japan
| | - Yutaka Hatanaka
- Center for Development of Advanced Diagnostics, Institute of Health Science Innovation for Medical Care, Hokkaido University Hospital, Hokkaido, Japan
- Research Division of Genome Companion Diagnostics, Hokkaido University Hospital, Hokkaido, Japan
| | - Yuhei Yamamoto
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo, 060-8638, Japan
| | - Satoru Sasaki
- Center for Vascular Anomalies, Department of Plastic and Reconstructive Surgery, Tonan Hospital, Hokkaido, Japan
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Hoshino Y, Osawa M, Funayama E, Ishikawa K, Miura T, Hojo M, Yamamoto Y, Maeda T. Therapeutic Potential of the Prolyl Hydroxylase Inhibitor Roxadustat in a Mouse Hindlimb Lymphedema Model. Lymphat Res Biol 2023; 21:372-380. [PMID: 36880955 DOI: 10.1089/lrb.2022.0071] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023] Open
Abstract
Background: Lymphedema is an intractable disease with no curative treatment available. Conservative treatment is the mainstay, and new drug treatment options are strongly needed. The purpose of this study was to investigate the effect of roxadustat, a prolyl-4-hydroxylase inhibitor, on lymphangiogenesis and its therapeutic effect on lymphedema in a radiation-free mouse hindlimb lymphedema model. Methods and Results: Male C57BL/6N mice (8-10 weeks old) were used for the lymphedema model. Mice were randomized to an experimental group receiving roxadustat or a control group. The circumferential ratio of the hindlimbs was evaluated, and lymphatic flow of the hindlimbs was compared by fluorescent lymphography up to 28 days postoperatively. The roxadustat group showed an early improvement in hindlimb circumference and stasis of lymphatic flow. The number and area of lymphatic vessels on postoperative day 7 were significantly larger and smaller, respectively, in the roxadustat group compared with the control group. Skin thickness and macrophage infiltration on postoperative day 7 were significantly reduced in the roxadustat group compared with the control group. The relative mRNA expression of hypoxia-inducible factor-1α (Hif-1α), vascular endothelial growth factor receptor-3 (VEGFR-3), vascular endothelial growth factor-C (VEGF-C), and Prospero homeobox 1 (Prox1) on postoperative day 4 was significantly higher in the roxadustat group compared with the control group. Conclusions: Roxadustat demonstrated a therapeutic effect in a murine model of hindlimb lymphedema through promotion of lymphangiogenesis through the activation of HIF-1α, VEGF-C, VEGFR-3, and Prox1, suggesting the potential of roxadustat as a therapeutic option in lymphedema.
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Affiliation(s)
- Yoshitada Hoshino
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Masayuki Osawa
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Emi Funayama
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Kosuke Ishikawa
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Takahiro Miura
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Masahiro Hojo
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Yuhei Yamamoto
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Taku Maeda
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan
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9
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Nakae S, Ogiso S, Mori I, Miura T, Haga Y, Hatakeyama S, Kimura K, Sugi T, Kimura A, Kurata T. Geospatial intelligence system for evaluating the work environment and physical load of factory workers . Annu Int Conf IEEE Eng Med Biol Soc 2023; 2023:1-5. [PMID: 38083748 DOI: 10.1109/embc40787.2023.10340890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
This study aimed to assess the effectiveness of methods for evaluating the environmental and physical loads on workers in manufacturing plants, considering their locations. Participants were employees of DENSO CORPORATION's manufacturing facilities, and environmental sensors (for temperature and humidity) and BLE beacons were installed to cover the work area. Questionnaires were completed by the participants twice to assess their thermal comfort and fatigue in the work environment. The results showed that a regression prediction model with an adjusted R-squared of 0.418 for fixed-point temperature and 0.495 for perceived temperature was developed for thermal comfort. No linear relationship was found between environmental factors and fatigue, and a decision tree analysis was conducted. Relative humidity and activity level, along with temperature, were selected as predictor variables. The findings suggest that it is possible to estimate the work environment and workload without adding additional measurement-related burdens or challenges. This highlights the usefulness of the proposed method, which takes into account the environmental distribution throughout the work area rather than relying solely on conventional fixed-point observation data, for assessing workers' exposure to the environment and preventing occupational accidents.Clinical Relevance- The proposed approach, combining indoor localization with environmental status, can estimate the condition of workers and is expected to be a good solution for preventing occupational accidents and enhancing workers' health.
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Miura T, Yamamoto Y, Funayama E, Ishikawa K, Maeda T. Development of a simultaneous and noninvasive measuring method using high-frame rate videography and motion analysis software for the assessment of facial palsy recovery in a rat model. J Plast Reconstr Aesthet Surg 2023; 82:211-218. [PMID: 37192584 DOI: 10.1016/j.bjps.2023.04.026] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Accepted: 04/11/2023] [Indexed: 05/18/2023]
Abstract
BACKGROUND For the development of new therapeutic and reconstructive methods for facial nerve palsy, it is critical to validate them in animal models. This study developed a novel evaluation method using a high-speed camera and motion analysis software for rat facial paralysis models. The validity of the new method was verified using normal rats and rats with facial paralysis. METHODS The whisker movement was recorded using a high-frame video camera. The video files were processed using motion analysis software, and the angular velocities were measured. The score was calculated as the percentage of movement on the side that had palsy compared with the movement on the normal side. Normal rats were used to examine which of the four indices of angular velocity is appropriate for this evaluation method. Using this method, two types of facial nerve palsy models were compared. Furthermore, the three agents that were predicted to promote axon regeneration from previous studies were evaluated. RESULTS The two averages of the protraction and retraction movement velocities of the whiskers were considered as the most appropriate indicators for this new method. Compared with the saline group, all agent groups showed significant differences in the improvement of facial palsy recovery. CONCLUSIONS This method is an evaluation method for the effects of therapeutic intervention for facial nerve paralysis in real time without sacrificing animals.
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Affiliation(s)
- Takahiro Miura
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-8638, Japan
| | - Yuhei Yamamoto
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-8638, Japan
| | - Emi Funayama
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-8638, Japan
| | - Kosuke Ishikawa
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-8638, Japan
| | - Taku Maeda
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo 060-8638, Japan.
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11
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Yoshioka-Maeda K, Matsumoto H, Honda C, Shiomi M, Taira K, Hosoya N, Sato M, Sumikawa Y, Fujii H, Miura T. New Web-Based System for Recording Public Health Nursing Practices and Determining Best Practices: Protocol of an Exploratory Sequential Design. JMIR Res Protoc 2023; 12:e45342. [PMID: 37307040 DOI: 10.2196/45342] [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: 12/25/2022] [Revised: 03/14/2023] [Accepted: 04/04/2023] [Indexed: 06/13/2023] Open
Abstract
BACKGROUND Digitalization and information and communication technology (ICT) promote effective, efficient individual and community care. Clinical terminology or taxonomy and its framework visualize individual patients' and nursing interventions' classifications to improve their outcomes and care quality. Public health nurses (PHNs) provide lifelong individual care and community-based activities while developing projects to promote community health. The linkage between these practices and clinical assessment remains tacit. Owing to Japan's lagging digitalization, supervisory PHNs face difficulties in monitoring each department's activities and staff members' performances and competencies. Randomly selected prefectural or municipal PHNs collect data on daily activities and required hours every 3 years. No study has adopted these data for public health nursing care management. PHNs need ICTs to manage their work and improve care quality; it may help identify health needs and suggest best public health nursing practices. OBJECTIVE We aim to develop and validate an electronic recording and management system for evaluating different public health nursing practice needs, including individual care, community-based activities, and project development, and for determining their best practices. METHODS We used a 2-phase exploratory sequential design (in Japan) comprising 2 phases. In phase 1, we developed the system's architectural framework and a hypothetical algorithm to determine the need for practice review through a literature review and a panel discussion. We designed a cloud-based practice recording system, including a daily record system and a termly review system. The panels included 3 supervisors who were prior PHNs at the prefectural or municipal government, and 1 was the executive director of the Japanese Nursing Association. The panels agreed that the draft architectural framework and hypothetical algorithm were reasonable. The system was not linked to electronic nursing records to protect patient privacy. Phase 2 validated each item through interviews with supervisory PHNs using a web-based meeting system. A nationwide survey was distributed to supervisory and midcareer PHNs across local governments. RESULTS This study was funded in March 2022 and approved by all ethics review boards from July to September and November 2022. Data collection was completed in January 2023. Five PHNs participated in the interviews. In the nationwide survey, responses were obtained from 177 local governments of supervisory PHNs and 196 midcareer ones. CONCLUSIONS This study will reveal PHNs' tacit knowledge about their practices, assess needs for different approaches, and determine best practices. Additionally, this study will promote ICT-based practices in public health nursing. The system will enable PHNs to record their daily activities and share them with their supervisors to reflect on and improve their performance, and the quality of care to promote health equity in community settings. The system will support supervisory PHNs in creating performance benchmarks for their staff and departments to promote evidence-based human resource development and management. TRIAL REGISTRATION UMIN-ICDR UMIN000049411; https://tinyurl.com/yfvxscfm. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) DERR1-10.2196/45342.
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Affiliation(s)
- Kyoko Yoshioka-Maeda
- Department of Community Health Nursing, Division of Health Sciences & Nursing, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Japan
| | - Hiroshige Matsumoto
- Department of Community Health Nursing, Division of Health Sciences & Nursing, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Japan
| | - Chikako Honda
- Department of Community Health Nursing, Division of Health Sciences & Nursing, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Japan
| | - Misa Shiomi
- Department of Innovative Public Health Nursing, Graduate School of Medicine, Kyoto University, Kyoto City, Japan
| | - Kazuya Taira
- Department of Innovative Public Health Nursing, Graduate School of Medicine, Kyoto University, Kyoto City, Japan
| | - Noriko Hosoya
- Department of Nursing, Faculty of Healthcare Sciences, Chiba Prefectural University of Health Sciences, Chiba City, Japan
| | - Miki Sato
- Department of Health Promotion, National Institute of Public Health, Wako City, Japan
| | - Yuka Sumikawa
- Department of Gerontological Homecare & Long-term Care Nursing, Division of Health Sciences & Nursing, The University of Tokyo, Bunkyo-ku, Japan
| | - Hitoshi Fujii
- Department of Medical Statistics, School of Nursing, Mejiro University, Saitama City, Japan
| | - Takahiro Miura
- Human Augmentation Research Center, National Institute of Advanced Industrial Science and Technology, Kashiwa City, Japan
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12
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Son BK, Miura T, Yabu KI, Sumikawa Y, Kim D, Lyu W, Yang Y, Tanaka M, Tanaka T, Yoshizawa Y, Iijima K. The Co-Design/Co-Development and Evaluation of an Online Frailty Check Application for Older Adults: Participatory Action Research with Older Adults. Int J Environ Res Public Health 2023; 20:6101. [PMID: 37372688 DOI: 10.3390/ijerph20126101] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/04/2023] [Accepted: 06/08/2023] [Indexed: 06/29/2023]
Abstract
Frailty is an age-related condition characterized by a decline in physical capacity with an increased vulnerability to stressors. During the COVID-19 pandemic, there was considerable progression in frailty in older adults. Therefore, an online frailty check (FC) is required for continuous screening, especially acceptable to older adults. We aimed to co-design/co-develop an online FC application with FC supporters who were facilitators in a pre-existing onsite FC program in the community. It consisted of a self-assessment of sarcopenia and an 11-item questionnaire assessing dietary, physical, and social behaviors. Opinions obtained from FC supporters (median 74.0 years) were categorized and implemented. The usability was assessed using the system usability scale (SUS). For both FC supporters and participants (n = 43), the mean score was 70.2 ± 10.3 points, which implied a "marginally high" acceptability and a "good" adjective range. Multiple regression analysis showed that the SUS score was significantly correlated with onsite-online reliability, even after adjusting for age, sex, education level, and ICT proficiency (b = 0.400, 95% CI: 0.243-1.951, p = 0.013). We also validated the online FC score, which showed a significant association between onsite and online FC scores (R = 0.670, p = 0.001). In conclusion, the online FC application is an acceptable and reliable tool to check frailty for community-dwelling older adults.
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Affiliation(s)
- Bo-Kyung Son
- Institute of Gerontology, The University of Tokyo, Tokyo 113-8656, Japan
- Institute for Future Initiatives, The University of Tokyo, Tokyo 113-0033, Japan
- Department of Geriatric Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Takahiro Miura
- Institute of Gerontology, The University of Tokyo, Tokyo 113-8656, Japan
- Human Augmentation Research Center (HARC), National Institute of Advanced Industrial Science and Technology (AIST), Kashiwa 277-0882, Japan
| | - Ken-Ichiro Yabu
- Institute of Gerontology, The University of Tokyo, Tokyo 113-8656, Japan
- Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Tokyo 153-8904, Japan
| | - Yuka Sumikawa
- Division of Health Sciences and Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
| | - Dongyool Kim
- Department of Agribusiness Management, Faculty of International Agriculture and Food Studies, Tokyo University of Agriculture, Tokyo 156-8502, Japan
| | - Weida Lyu
- Institute of Gerontology, The University of Tokyo, Tokyo 113-8656, Japan
- Department of Geriatric Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | - Yingxue Yang
- Graduate School of Education, The University of Tokyo, Tokyo 113-0033, Japan
| | - Moeko Tanaka
- Division of Health Sciences and Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
| | - Tomoki Tanaka
- Institute of Gerontology, The University of Tokyo, Tokyo 113-8656, Japan
| | - Yasuyo Yoshizawa
- Institute of Gerontology, The University of Tokyo, Tokyo 113-8656, Japan
| | - Katsuya Iijima
- Institute of Gerontology, The University of Tokyo, Tokyo 113-8656, Japan
- Institute for Future Initiatives, The University of Tokyo, Tokyo 113-0033, Japan
- Department of Geriatric Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
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13
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Port M, Barquinero JF, Endesfelder D, Moquet J, Oestreicher U, Terzoudi G, Trompier F, Vral A, Abe Y, Ainsbury L, Alkebsi L, Amundson S, Badie C, Baeyens A, Balajee A, Balázs K, Barnard S, Bassinet C, Beaton-Green L, Beinke C, Bobyk L, Brochard P, Brzoska K, Bucher M, Ciesielski B, Cuceu C, Discher M, D,Oca M, Domínguez I, Doucha-Senf S, Dumitrescu A, Duy P, Finot F, Garty G, Ghandhi S, Gregoire E, Goh V, Güçlü I, Hadjiiska L, Hargitai R, Hristova R, Ishii K, Kis E, Juniewicz M, Kriehuber R, Lacombe J, Lee Y, Lopez Riego M, Lumniczky K, Mai T, Maltar-Strmečki N, Marrale M, Martinez J, Marciniak A, Maznyk N, McKeever S, Meher P, Milanova M, Miura T, Gil OM, Montoro A, Domene MM, Mrozik A, Nakayama R, O’Brien G, Oskamp D, Ostheim P, Pajic J, Pastor N, Patrono C, Pujol-Canadell M, Rodriguez MP, Repin M, Romanyukha A, Rößler U, Sabatier L, Sakai A, Scherthan H, Schüle S, Seong K, Sevriukova O, Sholom S, Sommer S, Suto Y, Sypko T, Szatmári T, Takahashi-Sugai M, Takebayashi K, Testa A, Testard I, Tichy A, Triantopoulou S, Tsuyama N, Unverricht-Yeboah M, Valente M, Van Hoey O, Wilkins R, Wojcik A, Wojewodzka M, Younghyun L, Zafiropoulos D, Abend M. RENEB Inter-Laboratory Comparison 2021: Inter-Assay Comparison of Eight Dosimetry Assays. Radiat Res 2023; 199:535-555. [PMID: 37310880 PMCID: PMC10508307 DOI: 10.1667/rade-22-00207.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 01/10/2023] [Indexed: 06/15/2023]
Abstract
Tools for radiation exposure reconstruction are required to support the medical management of radiation victims in radiological or nuclear incidents. Different biological and physical dosimetry assays can be used for various exposure scenarios to estimate the dose of ionizing radiation a person has absorbed. Regular validation of the techniques through inter-laboratory comparisons (ILC) is essential to guarantee high quality results. In the current RENEB inter-laboratory comparison, the performance quality of established cytogenetic assays [dicentric chromosome assay (DCA), cytokinesis-block micronucleus assay (CBMN), stable chromosomal translocation assay (FISH) and premature chromosome condensation assay (PCC)] was tested in comparison to molecular biological assays [gamma-H2AX foci (gH2AX), gene expression (GE)] and physical dosimetry-based assays [electron paramagnetic resonance (EPR), optically or thermally stimulated luminescence (LUM)]. Three blinded coded samples (e.g., blood, enamel or mobiles) were exposed to 0, 1.2 or 3.5 Gy X-ray reference doses (240 kVp, 1 Gy/min). These doses roughly correspond to clinically relevant groups of unexposed to low exposed (0-1 Gy), moderately exposed (1-2 Gy, no severe acute health effects expected) and highly exposed individuals (>2 Gy, requiring early intensive medical care). In the frame of the current RENEB inter-laboratory comparison, samples were sent to 86 specialized teams in 46 organizations from 27 nations for dose estimation and identification of three clinically relevant groups. The time for sending early crude reports and more precise reports was documented for each laboratory and assay where possible. The quality of dose estimates was analyzed with three different levels of granularity, 1. by calculating the frequency of correctly reported clinically relevant dose categories, 2. by determining the number of dose estimates within the uncertainty intervals recommended for triage dosimetry (±0.5 Gy or ±1.0 Gy for doses <2.5 Gy or >2.5 Gy), and 3. by calculating the absolute difference (AD) of estimated doses relative to the reference doses. In total, 554 dose estimates were submitted within the 6-week period given before the exercise was closed. For samples processed with the highest priority, earliest dose estimates/categories were reported within 5-10 h of receipt for GE, gH2AX, LUM, EPR, 2-3 days for DCA, CBMN and within 6-7 days for the FISH assay. For the unirradiated control sample, the categorization in the correct clinically relevant group (0-1 Gy) as well as the allocation to the triage uncertainty interval was, with the exception of a few outliers, successfully performed for all assays. For the 3.5 Gy sample the percentage of correct classifications to the clinically relevant group (≥2 Gy) was between 89-100% for all assays, with the exception of gH2AX. For the 1.2 Gy sample, an exact allocation to the clinically relevant group was more difficult and 0-50% or 0-48% of the estimates were wrongly classified into the lowest or highest dose categories, respectively. For the irradiated samples, the correct allocation to the triage uncertainty intervals varied considerably between assays for the 1.2 Gy (29-76%) and 3.5 Gy (17-100%) samples. While a systematic shift towards higher doses was observed for the cytogenetic-based assays, extreme outliers exceeding the reference doses 2-6 fold were observed for EPR, FISH and GE assays. These outliers were related to a particular material examined (tooth enamel for EPR assay, reported as kerma in enamel, but when converted into the proper quantity, i.e. to kerma in air, expected dose estimates could be recalculated in most cases), the level of experience of the teams (FISH) and methodological uncertainties (GE). This was the first RENEB ILC where everything, from blood sampling to irradiation and shipment of the samples, was organized and realized at the same institution, for several biological and physical retrospective dosimetry assays. Almost all assays appeared comparably applicable for the identification of unexposed and highly exposed individuals and the allocation of medical relevant groups, with the latter requiring medical support for the acute radiation scenario simulated in this exercise. However, extreme outliers or a systematic shift of dose estimates have been observed for some assays. Possible reasons will be discussed in the assay specific papers of this special issue. In summary, this ILC clearly demonstrates the need to conduct regular exercises to identify research needs, but also to identify technical problems and to optimize the design of future ILCs.
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Affiliation(s)
- M. Port
- Bundeswehr Institute of Radiobiology, Munich, Germany
| | | | | | - J. Moquet
- UK Health Security Agency, Radiation, Chemical and Environmental Hazards Division, Oxfordshire, United Kingdom
| | | | - G. Terzoudi
- National Centre for Scientific Research “Demokritos”, Health Physics, Radiobiology & Cytogenetics Laboratory, Agia Paraskevi, Greece
| | - F. Trompier
- Institut de Radioprotection et de Surete Nucleaire, Fontenay aux Roses, France
| | - A. Vral
- Ghent University, Radiobiology Research Unit, Gent, Belgium
| | - Y. Abe
- Department of Radiation Biology and Protection, Nagasaki University, Japan
| | - L. Ainsbury
- UK Health Security Agency and Office for Health Improvement and Disparities, Cytogenetics and Pathology Group, Oxfordshire, England
| | - L Alkebsi
- Department of Radiation Measurement and Dose Assessment, National Institute of Radiological Sciences, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - S.A. Amundson
- Columbia University, Irving Medical Center, Center for Radiological Research, New York, New York
| | - C. Badie
- UK Health Security Agency, Radiation, Chemical and Environmental Hazards Division, Oxfordshire, United Kingdom
| | - A. Baeyens
- Ghent University, Radiobiology Research Unit, Gent, Belgium
| | - A.S. Balajee
- Cytogenetic Biodosimetry Laboratory, Oak Ridge Institute for Science and Education, Oak Ridge, Tennessee
| | - K. Balázs
- Radiation Medicine Unit, Department of Radiobiology and Radiohygiene, National Public Health Centre, Budapest, Hungary
| | - S. Barnard
- UK Health Security Agency, Radiation, Chemical and Environmental Hazards Division, Oxfordshire, United Kingdom
| | - C. Bassinet
- Institut de Radioprotection et de Surete Nucleaire, Fontenay aux Roses, France
| | | | - C. Beinke
- Bundeswehr Institute of Radiobiology, Munich, Germany
| | - L. Bobyk
- Institut de Recherche Biomédicale des Armées (IRBA), Bretigny Sur Orge, France
| | | | - K. Brzoska
- Institute of Nuclear Chemistry and Technology, Warsaw, Poland
| | - M. Bucher
- Bundesamt für Strahlenschutz, Oberschleißheim, Germany
| | - B. Ciesielski
- Medical University of Gdansk, Department of Physics and Biophysics, Gdansk, Poland
| | - C. Cuceu
- Genevolution, Porcheville, France
| | - M. Discher
- Paris-Lodron-University of Salzburg, Department of Environment and Biodiversity, 5020 Salzburg, Austria
| | - M.C. D,Oca
- Università Degli Studi di Palermo, Dipartimento di Fisica e Chimica “Emilio Segrè,” Palermo, Italy
| | - I. Domínguez
- Universidad de Sevilla, Departamento de Biología Celular, Sevilla, Spain
| | | | - A. Dumitrescu
- National Institute of Public Health, Radiation Hygiene Laboratory, Bucharest, Romania
| | - P.N. Duy
- Dalat Nuclear Research Institute, Radiation Technlogy & Biotechnology Center, Dalat City, Vietnam
| | - F. Finot
- Genevolution, Porcheville, France
| | - G. Garty
- Columbia University, Irving Medical Center, Center for Radiological Research, New York, New York
| | - S.A. Ghandhi
- Columbia University, Irving Medical Center, Center for Radiological Research, New York, New York
| | - E. Gregoire
- Institut de Radioprotection et de Surete Nucleaire, Fontenay aux Roses, France
| | - V.S.T. Goh
- Department of Radiobiology, Singapore Nuclear Research and Safety Initiative (SNRSI), National University of Singapore, Singapore
| | - I. Güçlü
- TENMAK, Nuclear Energy Research Institute, Technology Development and Nuclear Research Department, Türkey
| | - L. Hadjiiska
- National Centre of Radiobiology and Radiation Protection, Sofia, Bulgaria
| | - R. Hargitai
- Radiation Medicine Unit, Department of Radiobiology and Radiohygiene, National Public Health Centre, Budapest, Hungary
| | - R. Hristova
- National Centre of Radiobiology and Radiation Protection, Sofia, Bulgaria
| | - K. Ishii
- Department of Radiation Measurement and Dose Assessment, National Institute of Radiological Sciences, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - E. Kis
- Radiation Medicine Unit, Department of Radiobiology and Radiohygiene, National Public Health Centre, Budapest, Hungary
| | - M. Juniewicz
- Medical University of Gdansk, Department of Physics and Biophysics, Gdansk, Poland
| | - R. Kriehuber
- Department of Safety and Radiation Protection, Forschungszentrum Jülich, Jülich, Germany
| | - J. Lacombe
- University of Arizona, Center for Applied Nanobioscience & Medicine, Phoenix, Arizona
| | - Y. Lee
- Laboratory of Biological Dosimetry, Korea Institute of Radiological & Medical Sciences, Seoul, Republic of Korea
| | | | - K. Lumniczky
- Radiation Medicine Unit, Department of Radiobiology and Radiohygiene, National Public Health Centre, Budapest, Hungary
| | - T.T. Mai
- Dalat Nuclear Research Institute, Radiation Technlogy & Biotechnology Center, Dalat City, Vietnam
| | - N. Maltar-Strmečki
- Ruðer Boškovic Institute, Division of Physical Chemistry, Zagreb, Croatia
| | - M. Marrale
- Università Degli Studi di Palermo, Dipartimento di Fisica e Chimica “Emilio Segrè,” Palermo, Italy
| | - J.S. Martinez
- Institut de Radioprotection et de Surete Nucleaire, Fontenay aux Roses, France
| | - A. Marciniak
- Medical University of Gdansk, Department of Physics and Biophysics, Gdansk, Poland
| | - N. Maznyk
- Radiation Cytogenetics Laboratory, S.P. Grigoriev Institute for Medical Radiology and Oncology of Ukrainian National Academy of Medical Science, Kharkiv, Ukraine
| | - S.W.S. McKeever
- Radiation Dosimetry Laboratory, Oklahoma State University, Stillwater, Oklahoma
| | | | - M. Milanova
- University of Defense, Faculty of Military Health Sciences, Hradec Králové, Czech Republic
| | - T. Miura
- Institute of Radiation Emergency Medicine, Hirosaki University, Hirosaki, Japan
| | - O. Monteiro Gil
- Instituto Superior Técnico/ Campus Tecnológico e Nuclear, Lisbon, Portugal
| | - A. Montoro
- Servicio de Protección Radiológica. Laboratorio de Dosimetría Biológica, Valencia, Spain
| | - M. Moreno Domene
- Hospital General Universitario Gregorio Marañón, Laboratorio de dosimetría biológica, Madrid, Spain
| | - A. Mrozik
- Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland
| | - R. Nakayama
- Institute of Radiation Emergency Medicine, Hirosaki University, Hirosaki, Japan
| | - G. O’Brien
- UK Health Security Agency, Radiation, Chemical and Environmental Hazards Division, Oxfordshire, United Kingdom
| | - D. Oskamp
- Department of Safety and Radiation Protection, Forschungszentrum Jülich, Jülich, Germany
| | - P. Ostheim
- Bundeswehr Institute of Radiobiology, Munich, Germany
| | - J. Pajic
- Serbian Institute of Occupational Health, Belgrade, Serbia
| | - N. Pastor
- Universidad de Sevilla, Departamento de Biología Celular, Sevilla, Spain
| | - C. Patrono
- Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Rome, Italy
| | | | - M.J. Prieto Rodriguez
- Hospital General Universitario Gregorio Marañón, Laboratorio de dosimetría biológica, Madrid, Spain
| | - M. Repin
- Columbia University, Irving Medical Center, Center for Radiological Research, New York, New York
| | | | - U. Rößler
- Bundesamt für Strahlenschutz, Oberschleißheim, Germany
| | | | - A. Sakai
- Department of Radiation Life Sciences, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - H. Scherthan
- Bundeswehr Institute of Radiobiology, Munich, Germany
| | - S. Schüle
- Bundeswehr Institute of Radiobiology, Munich, Germany
| | - K.M. Seong
- Laboratory of Biological Dosimetry, Korea Institute of Radiological & Medical Sciences, Seoul, Republic of Korea
| | | | - S. Sholom
- Radiation Dosimetry Laboratory, Oklahoma State University, Stillwater, Oklahoma
| | - S. Sommer
- Institute of Nuclear Chemistry and Technology, Warsaw, Poland
| | - Y. Suto
- Department of Radiation Measurement and Dose Assessment, National Institute of Radiological Sciences, National Institutes for Quantum Science and Technology, Chiba, Japan
| | - T. Sypko
- Radiation Cytogenetics Laboratory, S.P. Grigoriev Institute for Medical Radiology and Oncology of Ukrainian National Academy of Medical Science, Kharkiv, Ukraine
| | - T. Szatmári
- Radiation Medicine Unit, Department of Radiobiology and Radiohygiene, National Public Health Centre, Budapest, Hungary
| | - M. Takahashi-Sugai
- Department of Radiation Life Sciences, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - K. Takebayashi
- Institute of Radiation Emergency Medicine, Hirosaki University, Hirosaki, Japan
| | - A. Testa
- Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Rome, Italy
| | - I. Testard
- CEA-Saclay, Gif-sur-Yvette Cedex, France
| | - A. Tichy
- University of Defense, Faculty of Military Health Sciences, Hradec Králové, Czech Republic
| | - S. Triantopoulou
- National Centre for Scientific Research “Demokritos”, Health Physics, Radiobiology & Cytogenetics Laboratory, Agia Paraskevi, Greece
| | - N. Tsuyama
- Department of Radiation Life Sciences, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - M. Unverricht-Yeboah
- Department of Safety and Radiation Protection, Forschungszentrum Jülich, Jülich, Germany
| | - M. Valente
- CEA-Saclay, Gif-sur-Yvette Cedex, France
| | - O. Van Hoey
- Belgian Nuclear Research Center SCK CEN, Mol, Belgium
| | | | - A. Wojcik
- Stockholm University, Stockholm, Sweden
| | - M. Wojewodzka
- Institute of Nuclear Chemistry and Technology, Warsaw, Poland
| | - Lee Younghyun
- Laboratory of Biological Dosimetry, Korea Institute of Radiological & Medical Sciences, Seoul, Republic of Korea
| | - D. Zafiropoulos
- Laboratori Nazionali di Legnaro - Istituto Nazionale di Fisica Nucleare, Legnaro, Italy
| | - M. Abend
- Bundeswehr Institute of Radiobiology, Munich, Germany
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Miura H, Miura T, Kohzuki M, Takahashi T, Akizuki M, Ebihara S. Exercise intensity of real-time remotely delivered yoga via videoconferencing: Comparison with in-person yoga. Complement Ther Clin Pract 2023; 52:101770. [PMID: 37244081 DOI: 10.1016/j.ctcp.2023.101770] [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: 11/01/2022] [Revised: 04/18/2023] [Accepted: 05/08/2023] [Indexed: 05/29/2023]
Abstract
BACKGROUND AND PURPOSE Yoga has been studied as a rehabilitation option, but barriers to attendance remain. Videoconferencing, where participants can receive online, real-time instruction and supervision, may reduce the barriers. However, whether exercise intensity is equivalent to that of in-person yoga, and the relationship between proficiency and intensity remain unclear. The present study aimed to investigate whether the intensity of exercise is different between real-time remotely-delivered yoga via videoconferencing (RDY) and in-person yoga (IPY) and its relationship to proficiency. MATERIALS AND METHODS Healthy yoga beginners (n = 11) and yoga practitioners (n = 11) performed yoga (Sun Salutation) consisting of 12 physical postures in real-time remotely delivered via videoconferencing and in-person (RDY, IPY, respectively), each for 10 min on different days, in random order, using an expiratory gas analyzer. Oxygen consumption was collected, metabolic equivalents (METs) were calculated based on the data, exercise intensity was compared between RDY and IPY, and differences of METs between beginners and practitioners in both interventions were also assessed. RESULTS Twenty-two participants (mean age ± standard deviation, 47.2 ± 10.8 years) completed the study. There were no significant differences in METs between RDY and IPY (5.0 ± 0.5, 5.0 ± 0.7, respectively, P = 0.92), and no difference by proficiency level in both RDY (beginners: 5.0 ± 0.4, practitioners: 5.0 ± 0.6, P = 0.77) and IPY (beginners: 5.0 ± 0.7, practitioners: 5.0 ± 0.7, P = 0.91). No serious adverse events occurred in both interventions. CONCLUSION The exercise intensity of RDY is equivalent to IPY regardless of proficiency with no adverse events in RDY occurring in this study.
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Affiliation(s)
- Hisako Miura
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-0872, Japan.
| | - Takahiro Miura
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-0872, Japan.
| | - Masahiro Kohzuki
- Yamagata Prefectural University of Health Sciences, 260 Kamiyanagi, Yamagata City, Yamagata, 990-2212, Japan.
| | - Tamao Takahashi
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-0872, Japan.
| | - Mina Akizuki
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-0872, Japan.
| | - Satoru Ebihara
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-0872, Japan.
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15
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Miura T, Okochi N, Suzuki J, Ifukube T. Binaural Listening with Head Rotation Helps Persons with Blindness Perceive Narrow Obstacles. Int J Environ Res Public Health 2023; 20:ijerph20085573. [PMID: 37107855 PMCID: PMC10138724 DOI: 10.3390/ijerph20085573] [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] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 03/31/2023] [Accepted: 04/11/2023] [Indexed: 05/11/2023]
Abstract
Orientation and mobility (O&M) are important abilities that people with visual impairments use in their independent performance of daily activities. In orientation, people with total blindness pinpoint nonsounding objects and sounding objects. The ability to perceive nonsounding objects is called obstacle sense, wherein people with blindness recognize the various characteristics of an obstacle using acoustic cues. Although body movement and listening style may enhance the sensing of obstacles, experimental studies on this topic are lacking. Elucidating their contributions to obstacle sense may lead to the further systematization of techniques of O&M training. This study sheds light on the contribution of head rotation and binaural hearing to obstacle sense among people with blindness. We conducted an experiment on the perceived presence and distance of nonsounding obstacles, which varied width and distance, for participants with blindness under the conditions of binaural or monaural hearing, with or without head rotation. The results indicated that head rotation and binaural listening can enhance the localization of nonsounding obstacles. Further, when people with blindness are unable to perform head rotation or use binaural hearing, their judgment can become biased in favor of the presence of an obstacle due to risk avoidance.
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Affiliation(s)
- Takahiro Miura
- National Institute of Advanced Industrial Science and Technology (AIST), Kashiwa 277-0882, Japan
- Correspondence:
| | - Naoyuki Okochi
- Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Tokyo 153-8904, Japan
| | | | - Tohru Ifukube
- Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Tokyo 153-8904, Japan
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16
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Barquinero JF, Abe Y, Aneva N, Endesfelder D, Georgieva D, Goh V, Gregoire E, Hristova R, Lee Y, Martínez JS, Meher PK, Miura T, Port M, Pujol-Canadell M, Prieto-Rodriguez MJ, Seong KM, Suto Y, Takebayashi K, Tsuyama N, Wojcik A, Yoon HJ, Abend M. RENEB Inter-Laboratory Comparison 2021: The FISH-Based Translocation Assay. Radiat Res 2023:492245. [PMID: 37057978 DOI: 10.1667/rade-22-00203.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 03/07/2023] [Indexed: 04/15/2023]
Abstract
Translocation analysis using fluorescence in situ hybridization (FISH) is the method of choice for dose assessment in case of chronic or past exposures to ionizing radiation. Although it is a widespread technique, unlike dicentrics, the number of FISH-based inter-laboratory comparisons is small. For this reason, although the current Running the European Network of Biological and Physical retrospective Dosimetry (RENEB) inter-laboratory comparison 2021 was designed as a fast response to a real emergency scenario, it was considered a good opportunity to perform an inter-laboratory comparison using the FISH technique to gain further experience. The Bundeswehr Institute of Radiobiology provided peripheral blood samples from one healthy human volunteer. Three test samples were irradiated with blinded doses of 0, 1.2, and 3.5 Gy, respectively. Samples were then sent to the seven participating laboratories. The FISH technique was applied according to the standard procedure of each laboratory. Both, the frequency of translocations and the estimated dose for each sample were sent to the coordinator using a special scoring sheet for FISH. All participants sent their results in due time. However, although it was initially requested to send the results based on the full analysis, evaluating 500 equivalent cells, most laboratories only sent the results based on triage, with a smaller number of analyzed cells. In the triage analysis, there was great heterogeneity in the number of equivalent cells scored. On the contrary, for the full analysis, this number was more homogeneous. For all three samples, one laboratory showed outlier yields compared to the other laboratories. Excluding these results, in the triage analysis, the frequency of translocations in sample no. 1 ranged from 0 to 0.013 translocations per cell, and for samples no. 2 and no. 3 the genomic mean frequency were 0.27 ± 0.03 and 1.47 ± 0.14, with a coefficient of variation of 0.29 and 0.23 respectively. Considering only results obtained in the triage analysis for sample no. 1, all laboratories, except one, classified this sample as the non-irradiated one. For sample no. 2, excluding the outlier value, the mean reported dose was 1.74 ± 0.16 Gy indicating a mean deviation of about 0.5 Gy to the delivered dose of 1.2 Gy. For sample no. 3 the mean dose estimated was 4.21 ± 0.21 Gy indicating a mean deviation of about 0.7 Gy to the delivered dose of 3.5 Gy. In the frame of RENEB, this is the second FISH-based inter-laboratory comparison. The whole exercise was planned as a response to an emergency, therefore, a triage analysis was requested for all the biomarkers except for FISH. Although a full analysis was initially requested for FISH, most of the laboratories reported only a triage-based result. The main reason is that it was not clearly stated what was required before starting the exercise. Results show that most of the laboratories successfully discriminated unexposed and irradiated samples from each other without any overlap. A good agreement in the observed frequencies of translocations was observed but there was a tendency to overestimate the delivered doses. Efforts to improve the harmonization of this technique and subsequent exercises to elucidate the reason for this trend should be promoted.
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Affiliation(s)
- J-F Barquinero
- Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
| | - Y Abe
- Department of Radiation Biology and Protection, Atomic Bomb Disease Institute, Nagasaki University (ABDI), Nagasaki, Japan
| | - N Aneva
- National Centre of Radiobiology and Radiation Protection (NCRRP), Sofia, Bulgaria
| | - D Endesfelder
- Bundesamt für Strahlenschutz (BfS), Oberschleissheim, Germany
| | - D Georgieva
- National Centre of Radiobiology and Radiation Protection (NCRRP), Sofia, Bulgaria
| | - Vst Goh
- Singapore Nuclear Research and Safety Initiative (SNRSI), Singapore
| | - E Gregoire
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay aux Roses, France
| | - R Hristova
- National Centre of Radiobiology and Radiation Protection (NCRRP), Sofia, Bulgaria
| | - Y Lee
- Korea Institute of Radiological & Medical Sciences, Laboratory of Biological Dosimetry (KIRAMS), Seoul, Korea
| | - J-S Martínez
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay aux Roses, France
| | - P-K Meher
- Centre for Radiation Protection Research, Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University (SU), Stockholm, Sweden
| | - T Miura
- Department of Risk Analysis and Biodosimetry, Institute of Radiation Emergency Medicine, Hirosaki University (IREM), Aomori, Japan
| | - M Port
- Bundeswehr Institute of Radiobiology affiliated to the University of Ulm (BIR), Munich, Germany
| | | | - M J Prieto-Rodriguez
- Hospital General Universitario Gregorio Marañón, Laboratorio de dosimetría biológica (SERMAS), Madrid, Spain
| | - K-M Seong
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay aux Roses, France
| | - Y Suto
- Biodosimetry Group, National Institutes for Quantum Science and Technology (QST), Chiba, Japan
| | - K Takebayashi
- Department of Risk Analysis and Biodosimetry, Institute of Radiation Emergency Medicine, Hirosaki University (IREM), Aomori, Japan
| | - N Tsuyama
- Department of Radiation Life Sciences, Fukushima Medical University (FMU), Fukushima, Japan
| | - A Wojcik
- Centre for Radiation Protection Research, Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University (SU), Stockholm, Sweden
| | - H-J Yoon
- Korea Institute of Radiological & Medical Sciences, Laboratory of Biological Dosimetry (KIRAMS), Seoul, Korea
| | - M Abend
- Bundeswehr Institute of Radiobiology affiliated to the University of Ulm (BIR), Munich, Germany
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17
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Endesfelder D, Oestreicher U, Bucher M, Beinke C, Siebenwirth C, Ainsbury E, Moquet J, Gruel G, Gregoire E, Martinez JS, Vral A, Baeyens A, Valente M, Montoro A, Terzoudi G, Triantopoulou S, Pantelias A, Gil OM, Prieto MJ, Domene MM, Zafiropoulos D, Barquinero JF, Pujol-Canadell M, Lumniczky K, Hargitai R, Kis E, Testa A, Patrono C, Sommer S, Hristova R, Kostova N, Atanasova M, Sevriukova O, Domínguez I, Pastor N, Güçlü I, Pajic J, Sabatier L, Brochard P, Tichy A, Milanova M, Finot F, Petrenci CC, Wilkins RC, Beaton-Green LA, Seong KM, Lee Y, Lee YH, Balajee AS, Maznyk N, Sypko T, Pham ND, Tran TM, Miura T, Suto Y, Akiyamam M, Tsuyama N, Abe Y, Goh VST, Chua CEL, Abend M, Port M. RENEB Inter-Laboratory Comparison 2021: The Dicentric Chromosome Assay. Radiat Res 2023:492028. [PMID: 37018160 DOI: 10.1667/rade-22-00202.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Accepted: 02/03/2023] [Indexed: 04/06/2023]
Abstract
After large-scale radiation accidents where many individuals are suspected to be exposed to ionizing radiation, biological and physical retrospective dosimetry assays are important tools to aid clinical decision making by categorizing individuals into unexposed/minimally, moderately or highly exposed groups. Quality-controlled inter-laboratory comparisons of simulated accident scenarios are regularly performed in the frame of the European legal association RENEB (Running the European Network of Biological and Physical retrospective Dosimetry) to optimize international networking and emergency readiness in case of large-scale radiation events. In total 33 laboratories from 22 countries around the world participated in the current RENEB inter-laboratory comparison 2021 for the dicentric chromosome assay. Blood was irradiated in vitro with X rays (240 kVp, 13 mA, ∼75 keV, 1 Gy/min) to simulate an acute, homogeneous whole-body exposure. Three blood samples (no. 1: 0 Gy, no. 2: 1.2 Gy, no. 3: 3.5 Gy) were sent to each participant and the task was to culture samples, to prepare slides and to assess radiation doses based on the observed dicentric yields from 50 manually or 150 semi-automatically scored metaphases (triage mode scoring). Approximately two-thirds of the participants applied calibration curves from irradiations with γ rays and about 1/3 from irradiations with X rays with varying energies. The categorization of the samples in clinically relevant groups corresponding to individuals that were unexposed/minimally (0-1 Gy), moderately (1-2 Gy) or highly exposed (>2 Gy) was successfully performed by all participants for sample no. 1 and no. 3 and by ≥74% for sample no. 2. However, while most participants estimated a dose of exactly 0 Gy for the sham-irradiated sample, the precise dose estimates of the samples irradiated with doses >0 Gy were systematically higher than the corresponding reference doses and showed a median deviation of 0.5 Gy (sample no. 2) and 0.95 Gy (sample no. 3) for manual scoring. By converting doses estimated based on γ-ray calibration curves to X-ray doses of a comparable mean photon energy as used in this exercise, the median deviation decreased to 0.27 Gy (sample no. 2) and 0.6 Gy (sample no. 3). The main aim of biological dosimetry in the case of a large-scale event is the categorization of individuals into clinically relevant groups, to aid clinical decision making. This task was successfully performed by all participants for the 0 Gy and 3.5 Gy samples and by 74% (manual scoring) and 80% (semi-automatic scoring) for the 1.2 Gy sample. Due to the accuracy of the dicentric chromosome assay and the high number of participating laboratories, a systematic shift of the dose estimates could be revealed. Differences in radiation quality (X ray vs. γ ray) between the test samples and the applied dose effect curves can partly explain the systematic shift. There might be several additional reasons for the observed bias (e.g., donor effects, transport, experimental conditions or the irradiation setup) and the analysis of these reasons provides great opportunities for future research. The participation of laboratories from countries around the world gave the opportunity to compare the results on an international level.
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Affiliation(s)
- D Endesfelder
- Bundesamt für Strahlenschutz, BfS, Oberschleissheim, Germany
| | - U Oestreicher
- Bundesamt für Strahlenschutz, BfS, Oberschleissheim, Germany
| | - M Bucher
- Bundesamt für Strahlenschutz, BfS, Oberschleissheim, Germany
| | - C Beinke
- Bundeswehr Institute of Radiobiology, Munich, Germany
| | - C Siebenwirth
- Bundeswehr Institute of Radiobiology, Munich, Germany
| | - E Ainsbury
- UK Health Security Agency, Radiation, Chemicals and Environmental Hazards Directorate, Chilton, Oxfordshire, United Kingdom
| | - J Moquet
- UK Health Security Agency, Radiation, Chemicals and Environmental Hazards Directorate, Chilton, Oxfordshire, United Kingdom
| | - G Gruel
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-Santé, SERAMED, LRAcc Fontenay-aux-Roses 92262, France
| | - E Gregoire
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-Santé, SERAMED, LRAcc Fontenay-aux-Roses 92262, France
| | - J S Martinez
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-Santé, SERAMED, LRAcc Fontenay-aux-Roses 92262, France
| | - A Vral
- Faculty of Medicine and Health Sciences, Universiteit Gent, Gent, Belgium
| | - A Baeyens
- Faculty of Medicine and Health Sciences, Universiteit Gent, Gent, Belgium
| | - M Valente
- Armed Forces Biomedical Research Institute, Department of Radiation Biological, Effects Brétigny-sur-Orge, France
| | - A Montoro
- Laboratorio de Dosimetría Biológica Servicio de Protección Radiológica Hospital Universitario Politécnico la Fe, Spain
| | - G Terzoudi
- National Centre for Scientific Research "Demokritos," Health Physics, Radiobiology & Cytogenetics Laboratory, Athens, Greece
| | - S Triantopoulou
- National Centre for Scientific Research "Demokritos," Health Physics, Radiobiology & Cytogenetics Laboratory, Athens, Greece
| | - A Pantelias
- National Centre for Scientific Research "Demokritos," Health Physics, Radiobiology & Cytogenetics Laboratory, Athens, Greece
| | - O Monteiro Gil
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico (IST), Universidade de Lisboa, Lisboa, Portugal
| | - M J Prieto
- Hospital General Universitario Gregorio Marañón; Servicio de Oncología Radioterápica; Laboratorio de dosimetría biológica, Madrid, Spain
| | - M M Domene
- Hospital General Universitario Gregorio Marañón; Servicio de Oncología Radioterápica; Laboratorio de dosimetría biológica, Madrid, Spain
| | - D Zafiropoulos
- Laboratori Nazionali di Legnaro - Istituto Nazionale di Fisica Nucleare, Legnaro, Italy
| | | | | | - K Lumniczky
- Radiation Medicine Unit, Department of Radiobiology and Radiohygiene, National Public Health Centre, Budapest, Hungary
| | - R Hargitai
- Radiation Medicine Unit, Department of Radiobiology and Radiohygiene, National Public Health Centre, Budapest, Hungary
| | - E Kis
- Radiation Medicine Unit, Department of Radiobiology and Radiohygiene, National Public Health Centre, Budapest, Hungary
| | - A Testa
- Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile, Rome, Italy
| | - C Patrono
- Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile, Rome, Italy
| | - S Sommer
- Institute of Nuclear Chemistry and Technology, Warsaw, Poland
| | - R Hristova
- National Centre of Radiobiology and Radiation Protection, Sofia, Bulgaria
| | - N Kostova
- National Centre of Radiobiology and Radiation Protection, Sofia, Bulgaria
| | - M Atanasova
- National Centre of Radiobiology and Radiation Protection, Sofia, Bulgaria
| | - O Sevriukova
- Laboratori Nazionali di Legnaro - Istituto Nazionale di Fisica Nucleare, Legnaro, Italy
| | - I Domínguez
- Universidad de Sevilla, Departamento de Biología Celular, Facultad de Biología, Sevilla, Spain
| | - N Pastor
- Universidad de Sevilla, Departamento de Biología Celular, Facultad de Biología, Sevilla, Spain
| | - I Güçlü
- Nükleer Arş Ens. Yarımburgaz mah. Nükleer Arş yolu, Turkey
| | - J Pajic
- Serbian Institute of Occupational Health, Belgrade, Serbia
| | - L Sabatier
- PROCyTOX, Commissariat à l'Energie Atomique et aux Energies Alternatives (CEA), Fontenay-aux-Roses, France and Université Paris-Saclay, France
| | - P Brochard
- PROCyTOX, Commissariat à l'Energie Atomique et aux Energies Alternatives (CEA), Fontenay-aux-Roses, France and Université Paris-Saclay, France
| | - A Tichy
- Department of Radiobiology, Faculty of Military Health Sciences, University of Defence, Hradec Králové, Czech Republic
| | - M Milanova
- Department of Radiobiology, Faculty of Military Health Sciences, University of Defence, Hradec Králové, Czech Republic
| | - F Finot
- Genevolution, Porcheville, France
| | | | - R C Wilkins
- Consumer and Clinical Radiation Protection Bureau, Health Canada, Ottawa, Canada
| | - L A Beaton-Green
- Consumer and Clinical Radiation Protection Bureau, Health Canada, Ottawa, Canada
| | - K M Seong
- Lab of Biological Dosimetry, National Radiation Emergency Medical Center, Korea Institute of Radiological & Medical Sciences, Seoul, Republic of Korea
| | - Y Lee
- Lab of Biological Dosimetry, National Radiation Emergency Medical Center, Korea Institute of Radiological & Medical Sciences, Seoul, Republic of Korea
| | - Y H Lee
- Lab of Biological Dosimetry, National Radiation Emergency Medical Center, Korea Institute of Radiological & Medical Sciences, Seoul, Republic of Korea
| | - A S Balajee
- Cytogenetic Biodosimetry Laboratory; Radiation Emergency Assistance Center/Training Site (REAC/TS); Oak Ridge Institute for Science and Education; Oak Ridge Associated Universities; Oak Ridge, Tennessee
| | - N Maznyk
- aa Radiation Cytogenetics Laboratory; S.P. Grigoriev Institute for Medical Radiology and Oncology of Ukrainian National Academy of Medical Science, Kharkiv, Ukraine
| | - T Sypko
- aa Radiation Cytogenetics Laboratory; S.P. Grigoriev Institute for Medical Radiology and Oncology of Ukrainian National Academy of Medical Science, Kharkiv, Ukraine
| | - N D Pham
- bb Biodosimetry Laboratory, Center for Radiation Technology & Biotechnology; Dalat Nuclear Research Institute; Dalat City, Vietnam
| | - T M Tran
- bb Biodosimetry Laboratory, Center for Radiation Technology & Biotechnology; Dalat Nuclear Research Institute; Dalat City, Vietnam
| | - T Miura
- cc Department of Risk Analysis and Biodosimetry Institute of Radiation Emergency Medicine, Hirosaki University, Hirosaki, Japan
| | - Y Suto
- dd National Institutes for Quantum Science and Technology, Chiba, Japan
| | - M Akiyamam
- dd National Institutes for Quantum Science and Technology, Chiba, Japan
| | - N Tsuyama
- ee Department of Radiation Life Sciences, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Y Abe
- ff Department of Radiation Biology and Protection, Atomic Bomb Disease Institute, Nagasaki University, Japan
| | - V S T Goh
- ff Department of Radiation Biology and Protection, Atomic Bomb Disease Institute, Nagasaki University, Japan
| | - C E L Chua
- gg Department of Radiobiology, Singapore Nuclear Research and Safety Initiative (SNRSI), National University of Singapore, Singapore
| | - M Abend
- Bundeswehr Institute of Radiobiology, Munich, Germany
| | - M Port
- Bundeswehr Institute of Radiobiology, Munich, Germany
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Ishikawa K, Sasaki S, Furukawa H, Maeda T, Miura T, Sasaki Y, Yamamoto Y, Funayama E. Effectiveness and safety of percutaneous sclerotherapy using absolute ethanol and/or polidocanol for maxillofacial venous malformations involving the masticatory muscles: A case series. Oral Surg Oral Med Oral Pathol Oral Radiol 2023; 135:355-362. [PMID: 36241599 DOI: 10.1016/j.oooo.2022.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/14/2022] [Accepted: 07/21/2022] [Indexed: 11/26/2022]
Abstract
OBJECTIVE This study evaluated the effectiveness and safety of percutaneous sclerotherapy for maxillofacial venous malformations. STUDY DESIGN Patients who had venous malformations involving the masticatory muscles and who underwent sclerotherapy were enrolled in this retrospective study. RESULTS Twenty-four patients (13 female, 11 male; mean age 21 years) were analyzed. Major clinical symptoms were swelling (100%) and intralesional pain (54%). Intramuscular lesions involved the masseter muscle only in 38% of cases, both the masseter and temporalis muscles in 33%, all masticatory muscles in 21%, and the temporalis muscle only in 8%. Extramuscular involvement was observed in 58% of patients. Absolute ethanol and polidocanol were used as sclerosants. The mean number of sclerotherapy sessions per patient was 6.6 (range, 1-32). The mean follow-up duration after the first sclerotherapy session was 64.8 months (range, 6-178). The complications included paralysis of the facial nerve (25%), intraoral ulceration (8%), and hemoglobinuria (8%). The effectiveness of treatment was rated as excellent in 33% of cases, good in 46%, and fair in 21%. Better results were obtained in patients without extramuscular involvement. CONCLUSION Percutaneous sclerotherapy can be effective and safe for maxillofacial intramuscular venous malformations, especially for localized lesions of the masseter muscle.
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Affiliation(s)
- Kosuke Ishikawa
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Satoru Sasaki
- Department of Plastic and Reconstructive Surgery, Center for Vascular Anomalies, Tonan Hospital, Sapporo, Hokkaido, Japan
| | - Hiroshi Furukawa
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan; Department of Plastic and Reconstructive Surgery, Aichi Medical University, Nagakute, Aichi, Japan
| | - Taku Maeda
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Takahiro Miura
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Yuki Sasaki
- Department of Plastic and Reconstructive Surgery, Center for Vascular Anomalies, Tonan Hospital, Sapporo, Hokkaido, Japan
| | - Yuhei Yamamoto
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Emi Funayama
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan.
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Miura T, Asatani K, Sakata I. Revisiting the uniformity and inconsistency of slow-cited papers in science. J Informetr 2023. [DOI: 10.1016/j.joi.2023.101378] [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: 01/19/2023]
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Yoshioka-Maeda K, Honda C, Sumikawa Y, Okamoto Y, Shimada M, Fujii H, Iwasaki-Motegi R, Miura T, Otsuki M. Developing a Virtual Reality Simulation Program for Improving Nursing Students' Clinical Reasoning Skills in Home Settings: A Protocol Paper. Nurs Rep 2022; 12:968-979. [PMID: 36548166 PMCID: PMC9786314 DOI: 10.3390/nursrep12040093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/24/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022] Open
Abstract
Most nursing simulation programs focus on persons' healthcare needs in hospital settings, and little is known about how to identify them in home settings. This study aims to develop and validate a virtual reality (VR) simulation program for nursing students to improve their clinical reasoning skills and confidence in assessing persons' healthcare needs in home settings. We developed a VR simulation program based on a literature review and expert discussion. In Phase 1, home visit nurses or public health nurses will validate the program through their interviews in 2022. In Phase 2, we will conduct a pilot and main single-blinded randomized trial for nursing students to confirm the effectiveness from 2022 and 2023. Participants will be randomly allocated into an intervention group using VR simulations and a control group receiving videos regarding three kinds of community residents' lives [1:1]. After obtaining informed consent, the students will submit their anonymous data to the researchers to prevent associating their grade evaluation. The primary outcome will be their clinical reasoning skills. The second outcome will include their satisfaction and self-confidence. This study will examine the effectiveness of improving their clinical reasoning skills and confidence in assessing persons' healthcare needs in home settings.
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Affiliation(s)
- Kyoko Yoshioka-Maeda
- Department of Community Health Nursing, Division of Health Sciences and Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
- Correspondence: ; Tel.: +81-3-5841-3597
| | - Chikako Honda
- Department of Community Health Nursing, Division of Health Sciences and Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
| | - Yuka Sumikawa
- Department of Gerontological Home Care and Long-Term Care Nursing/Palliative Care Nursing, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
| | - Yuko Okamoto
- Department of Nursing Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo 116-8551, Japan
| | - Megumi Shimada
- Department of Nursing Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo 116-8551, Japan
| | - Hitoshi Fujii
- Department of Medical Statistics, School of Nursing, Mejiro University, Saitama 339-8501, Japan
| | - Riho Iwasaki-Motegi
- Department of Health Promotion, National Institute of Public Health, Saitama 351-0197, Japan
| | - Takahiro Miura
- Human Augmentation Research Center, National Institute of Advanced Industrial Science and Technology, Chiba 277-0882, Japan
| | - Mai Otsuki
- Human Augmentation Research Center, National Institute of Advanced Industrial Science and Technology, Chiba 277-0882, Japan
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Ebihara S, Miura T, Yoshida N, Nakazawa C, Takahashi R, Ebihara T. Sarcopenic dysphagia and aspiration pneumonia in older people. Geriatr Gerontol Int 2022; 22:1057-1058. [PMID: 36320152 DOI: 10.1111/ggi.14503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 10/16/2022] [Indexed: 12/12/2022]
Affiliation(s)
- Satoru Ebihara
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takahiro Miura
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Naoki Yoshida
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Chihiro Nakazawa
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ryo Takahashi
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takae Ebihara
- Department of Geriatric Medicine, Graduate School of Medicine, Kyorin University School of Medicine, Tokyo, Japan
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Yonemori K, Fujiwara K, Hasegawa K, Yunokawa M, Ushijima K, Suzuki S, Shikama A, Minobe S, Usami T, Kim JW, Kim BG, Wang PH, Chang TC, Yamamoto K, Han S, McKenzie J, Barresi G, Miura T, Makker V, Kim Y. 177O Lenvatinib plus pembrolizumab versus treatment of physician’s choice in patients with previously treated advanced endometrial cancer: Study 309/KEYNOTE-775 Asian subgroup. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.213] [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: 12/05/2022] Open
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Maeda T, Yamamoto Y, Hayashi T, Furukawa H, Ishikawa K, Miura T, Hojo M, Funayama E. Restoration of lymph flow by flap transfer can prevent severe lower extremity lymphedema after inguino-pelvic lymphadenectomy. Surg Today 2022; 53:588-595. [PMID: 36309621 DOI: 10.1007/s00595-022-02608-2] [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] [Received: 07/26/2022] [Accepted: 09/07/2022] [Indexed: 10/31/2022]
Abstract
PURPOSE Severe lymphedema is difficult to treat because of the associated extensive scar formation. Therefore, preventing scar formation might alleviate the severity of lymphedema following lymphadenectomy. In this study, we evaluated the usefulness of flap transfer, performed immediately after lymphadenectomy, for preventing scar formation. METHODS Twenty-three patients with subcutaneous malignancy in a lower extremity, who underwent inguino-pelvic lymphadenectomy, were divided into groups based on whether flap transfer was performed. The severity of lymphedema was categorized according to the ratio of the circumference of the affected extremity to that of the unaffected extremity, as mild (< 20% increase in volume), moderate (20-40%), or severe (> 40%). RESULTS In the 18 patients who underwent lymphadenectomy without flap transfer, lymphedema was classified as mild in 7, moderate in 7, and severe in 4. In the five patients who underwent lymphadenectomy with flap transfer, lymphedema was classified as mild in 4 and moderate in 1. This difference between the groups did not reach significance. CONCLUSIONS The findings of this study suggest that flap transfer may help prevent scar formation and contribute to the restoration of lymph flow after lymphadenectomy.
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Zhang Y, Li S, Uenaka T, Furuuchi K, Yonemori K, Shimizu T, Nishio S, Yunokawa M, Matsumoto K, Takehara K, Hasegawa K, Hirashima Y, Kato H, Otake Y, Miura T, Matsui J. Phase I Biomarker Analysis Results of MORAb-202 (Farletuzumab Ecteribulin) Effects on Vascular Remodeling and Immune Modulation in Patients With Ovarian Cancer. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)01032-2] [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: 11/03/2022]
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Tanaka T, Matsumura R, Miura T. Influence of Varied Load Assistance with Exoskeleton-Type Robotic Device on Gait Rehabilitation in Healthy Adult Men. Int J Environ Res Public Health 2022; 19:9713. [PMID: 35955068 PMCID: PMC9368586 DOI: 10.3390/ijerph19159713] [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] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/04/2022] [Accepted: 08/05/2022] [Indexed: 06/15/2023]
Abstract
This study aimed to clarify how the power-assist function of the hybrid assistive limb (HAL®), an exoskeleton-type gait-assist device, affected the gait characteristics of patients who wear it, specifically focusing on the "misalignment" of the robot joints and landmarks with the corresponding body parts. Five healthy adult men were video-recorded wearing the HAL® as they walked normally on a treadmill under seven conditions corresponding to the strengths and sites of robotic power assistance. For kinematic analysis, reflective markers were attached to the HAL® and the wearer at key locations, and participants were recorded walking past a set of four video cameras for each condition. A motion analysis system was used for analysis. The walking motion was segmented into eight-phase gait cycles. Knee misalignment, or the relative offset in position of the HAL®/wearer knee joints, was calculated from kinematic data and joint angles. These values were compared with respect to two factors: assist level and gait phase. Statistical analysis consisted of parametric and nonparametric tests for comparing the values of misalignment of each gait phase, followed by multiple comparisons to confirm significant differences. The results showed that the knee misalignment was greatest in the pre-swing phase and was significantly lower overall in conditions with high levels of power assistance. The result of greater knee misalignment in the pre-swing phase may be attributed to the structural properties of the HAL® lower-limb exoskeleton. This provides valuable insight regarding the walking stages that should be given special attention during the evaluation of synchrony between exoskeleton-type gait-assist robots and their wearers.
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Affiliation(s)
- Toshiaki Tanaka
- The Research Center for Advanced Science and Technology, Institute of Gerontology, The University of Tokyo, Tokyo 113-8656, Japan
- Department of Physical Therapy, Faculty of Health Sciences, Hokkaido University of Science, Sapporo 006-8585, Japan
| | - Ryo Matsumura
- Department of Physical Therapy, Faculty of Health Sciences, Hokkaido University of Science, Sapporo 006-8585, Japan
| | - Takahiro Miura
- National Institute of Advanced Industrial Science and Technology (AIST), Kashiwa 277-0882, Japan
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Ebina K, Etani Y, Tsuboi H, Nagayama Y, Kashii M, Miyama A, Kunugiza Y, Hirao M, Okamura G, Noguchi T, Takami K, Goshima A, Miura T, Fukuda Y, Kurihara T, Okada S, Nakata K. Effects of prior osteoporosis treatment on the treatment response of romosozumab followed by denosumab in patients with postmenopausal osteoporosis. Osteoporos Int 2022; 33:1807-1813. [PMID: 35362725 DOI: 10.1007/s00198-022-06386-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 03/25/2022] [Indexed: 01/28/2023]
Abstract
UNLABELLED In patients with postmenopausal osteoporosis, prior osteoporosis treatment affected the bone mineral density increase of following treatment with 12 months of romosozumab, although it did not affect that of following treatment with 12 months of denosumab after romosozumab. PURPOSE To investigate the effects of prior osteoporosis treatment on the response to treatment with romosozumab (ROMO) followed by denosumab (DMAb) in patients with postmenopausal osteoporosis. METHODS In this prospective, observational, multicenter study, treatment-naïve patients (Naïve; n = 55) or patients previously treated with bisphosphonates (BP; n = 37), DMAb (DMAb; n = 45) or teriparatide (TPTD; n = 17) (mean age, 74.6 years; T-scores of the lumbar spine [LS] - 3.2 and total hip [TH] - 2.6) were switched to ROMO for 12 months, followed by DMAb for 12 months. Bone mineral density (BMD) and serum bone turnover markers were evaluated for 24 months. RESULTS A BMD increase was observed at 12 and 24 months in the following patients: Naïve (18.2% and 22.0%), BP (10.2% and 12.1%), DMAb (6.6% and 9.7%), and TPTD (10.8% and 15.0%) (P < 0.001 between the groups at both 12 and 24 months) in LS and Naïve (5.5% and 8.3%), BP (2.9% and 4.1%), DMAb (0.6% and 2.2%), and TPTD (4.3% and 5.4%) (P < 0.01 between the groups at 12 months and P < 0.001 at 24 months) in TH, respectively. The BMD increase in LS from 12 to 24 months was negatively associated with the levels of bone resorption marker at 24 months. Incidences of major fragility fractures for the respective groups were as follows: Naïve (5.5%), BP (16.2%), DMAb (11.1%), and TPTD (5.9%). CONCLUSIONS Previous treatment affected the BMD increase of following treatment with ROMO, although it did not affect that of following treatment with DMAb after ROMO.
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Affiliation(s)
- K Ebina
- Department of Musculoskeletal Regenerative Medicine, Osaka University, Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan.
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan.
| | - Y Etani
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - H Tsuboi
- Department of Orthopaedic Surgery, Osaka Rosai Hospital, 1179-3 Nagasone-cho, Kita-ku, Sakai, 591-8025, Japan
| | - Y Nagayama
- Nagayama Rheumatology and Orthopaedic Clinic, 4-3-25 Hiokisounishi-machi, Higashi-ku, Sakai, 599-8114, Japan
| | - M Kashii
- Department of Orthopaedic Surgery, Toyonaka Municipal Hospital, 4-14-1 Shibahara-cho, Toyonaka, Osaka, 560-8565, Japan
| | - A Miyama
- Department of Orthopaedic Surgery, Osaka Toneyama Medical Center, 5-1-1 Toneyama, Toyonaka, Osaka, 560-8552, Japan
| | - Y Kunugiza
- Department of Orthopaedic Surgery, Japan Community Health Care Organization, Hoshigaoka Medical Center, 4-8-1 Hoshigaoka, Hirakata, Osaka, 573-8511, Japan
| | - M Hirao
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - G Okamura
- Department of Orthopaedic Surgery, Osaka Rosai Hospital, 1179-3 Nagasone-cho, Kita-ku, Sakai, 591-8025, Japan
| | - T Noguchi
- Department of Orthopaedic Surgery, National Hospital Organization Osaka Minami Medical Center, 2-1 Kidohigashi, Kawachinagano, Osaka, 586-8521, Japan
| | - K Takami
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - A Goshima
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - T Miura
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Y Fukuda
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - T Kurihara
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - S Okada
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - K Nakata
- Department of Health and Sport Sciences, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
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Sakuyama A, Ogawa Y, Xu L, Komatsu M, Miura T, Namai-Takahashi A, Kohzuki M, Ito O. Effects of Exercise Training on the Renin-Angiotensin System in the Kidneys of Dahl Salt-Sensitive Rats. Med Sci Sports Exerc 2022; 54:1105-1113. [PMID: 35220367 DOI: 10.1249/mss.0000000000002901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PURPOSE Exercise training (Ex) has antihypertensive and renal protective effects; however, the precise mechanisms remain unclear. The renal renin-angiotensin system (RAS) plays a vital role in renal function and pathology. Therefore, we investigated the effects of Ex on the renal RAS components in Dahl salt-sensitive (Dahl-S) rats. METHODS Male Dahl-S rats were divided into four groups: normal salt diet + sedentary, normal salt diet + Ex, high-salt diet (HS, 8% NaCl) + sedentary, and HS + Ex. Treadmill running was performed for 8 wk in the Ex groups. RESULTS Ex attenuated the HS-induced renal dysfunction and glomerular injury without causing blood pressure alterations. HS increased urinary excretion of both total and intact angiotensinogen. Ex decreased the HS-induced increased urinary excretion of total angiotensinogen. However, it did not change the HS-induced urinary excretion of intact angiotensinogen, indicating reduced intact angiotensinogen cleaving. Ex restored the HS-induced increased angiotensinogen and angiotensin II type 1 receptor expressions in the outer medulla and the HS-induced increased angiotensin-converting enzyme expression in the cortex. Ex restored the HS-induced decreased renin expression in the cortex and outer medulla, and the HS-induced decreased angiotensin-converting enzyme 2, angiotensin II type 2 receptor, and Mas receptor expressions in the outer medulla. CONCLUSIONS Ex attenuates HS-induced renal dysfunction, glomerular injury, and renal RAS dysregulation in Dahl-S rats.
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Affiliation(s)
| | - Yoshiko Ogawa
- Department of Sport and Medical Science, Faculty of Medical Technology, Teikyo University, Tokyo, JAPAN
| | - Lusi Xu
- Division of General Medicine and Rehabilitation, Tohoku Medical and Pharmaceutical University Faculty of Medicine, Sendai, JAPAN
| | - Miwa Komatsu
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, JAPAN
| | - Takahiro Miura
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, JAPAN
| | - Asako Namai-Takahashi
- Division of General Medicine and Rehabilitation, Tohoku Medical and Pharmaceutical University Faculty of Medicine, Sendai, JAPAN
| | - Masahiro Kohzuki
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, JAPAN
| | - Osamu Ito
- Division of General Medicine and Rehabilitation, Tohoku Medical and Pharmaceutical University Faculty of Medicine, Sendai, JAPAN
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Yamashita Y, Miura T, Kawamura S, Sumii K, Okuno M, Taguchi I, Kawabata G. [Treatment of Parastomal Hernia Following Robot-Assisted Radical Cystectomy and Cutaneous Ureterostomy : A Case Report]. Hinyokika Kiyo 2022; 68:197-199. [PMID: 35850509 DOI: 10.14989/actauroljap_68_6_197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The patient was an 82-year-old woman with localized muscle-invasive bladder cancer, who underwent robot-assisted radical cystectomy and cutaneous ureterostomy. On the 3rd day after the operation, she suddenly complained of abdominal pain. Abdominal computed tomographic scans revealed parastomal hernia. The patient underwent manual reduction of hernia, but had repeated recurrences of parastomal hernia within a few days. On the 14th day we performed a laparoscopic hernia repair. Observation of the stoma site revealed a laceration of the peritoneum and fascia, and the small intestine was prolapsed. We pulled the small intestine out and ligated the laceration with Mediflex® Suture Grasper Closure Device. After re-operation, there was no recurrence of bladder cancer and parastomal hernia, and the stoma appliances could be put on without any trouble.
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Affiliation(s)
| | | | | | - Kenta Sumii
- The Division of Urology, Kansai Rosai Hospital
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Nagai K, Fukuno S, Moriwaki R, Kuroda H, Omotani S, Miura T, Hatsuda Y, Myotoku M, Konishi H. Influence of concurrent and staggered dosing of semi-solid nutrients on the pharmacokinetics of orally administered carbamazepine in rats. Pharmazie 2022; 77:118-120. [PMID: 35459440 DOI: 10.1691/2022.1756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In the present study, we examined the effects of concurrent and staggered dosing of PG-soft ace-MP TM (PG), novel semi-solid enteral nutrients, on the pharmacokinetics of orally administered carbamazepine (CBZ) in rats due to the high possibility of drug interaction during the absorption process. The pharmacokinetic behavior of CBZ was considerably altered when administered concurrently with PG. The maximum serum CBZ concentration (Cmax) significantly decreased and the mean residence time (MRT) significantly increased. The elimination constant (ke) also significantly increased, but there were no significant changes in the area under the serum CBZ concentration versus time curve (AUC) and the time to reach Cmax (Tmax). However, these changes in the pharmacokinetic parameters were eliminated by waiting 20 min, the time interval equivalent to the Tmax described above, between CBZ administration and PG dosing. This study suggested that PG interferes with CBZ absorption from the digestive tract, although staggered administration of CBZ and PG prevented their interaction.
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Affiliation(s)
- K Nagai
- Laboratory of Clinical Pharmacy and Therapeutics, Osaka Ohtani University, Tondabayashi, Japan;,
| | - S Fukuno
- Laboratory of Clinical Pharmacy and Therapeutics, Osaka Ohtani University, Tondabayashi, Japan
| | - R Moriwaki
- Laboratory of Clinical Pharmacy and Therapeutics, Osaka Ohtani University, Tondabayashi, Japan
| | - H Kuroda
- Laboratory of Clinical Pharmacy and Therapeutics, Osaka Ohtani University, Tondabayashi, Japan
| | - S Omotani
- Laboratory of Practical Pharmacy and Pharmaceutical Care, Faculty of Pharmacy, Osaka Ohtani University, Tondabayashi, Japan
| | - T Miura
- Pharmaceutical Education Support Center, School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women's University, Nishinomiya, Japan
| | - Y Hatsuda
- Laboratory of Practical Pharmacy and Pharmaceutical Care, Faculty of Pharmacy, Osaka Ohtani University, Tondabayashi, Japan
| | - M Myotoku
- Laboratory of Practical Pharmacy and Pharmaceutical Care, Faculty of Pharmacy, Osaka Ohtani University, Tondabayashi, Japan
| | - H Konishi
- Laboratory of Clinical Pharmacy and Therapeutics, Osaka Ohtani University, Tondabayashi, Japan
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Miura T, Sakuyama A, Xu L, Qiu J, Namai-Takahashi A, Ogawa Y, Kohzuki M, Ito O. Febuxostat ameliorates high salt intake-induced hypertension and renal damage in Dahl salt-sensitive rats. J Hypertens 2022; 40:327-337. [PMID: 34495901 DOI: 10.1097/hjh.0000000000003012] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Several clinical studies have reported that xanthine oxidoreductase inhibitors have antihypertensive and renal protective effects but their mechanisms have not been fully determined. This study aims to clarify these mechanisms by examining the effects of febuxostat, which is a novel selective xanthine oxidoreductase inhibitor, in Dahl salt-sensitive rats. METHODS Eight-week-old male Dahl salt-sensitive rats were fed a normal salt (0.6% NaCl) or high salt (8% NaCl) diet for 8 weeks. A portion of the rats that were fed high salt diet were treated with febuxostat (3 mg/kg per day) simultaneously. Additionally, acute effects of febuxostat (3 mg/kg per day) were examined after high salt diet feeding for 4 or 8 weeks. RESULTS Treatment with febuxostat for 8 weeks attenuated high salt diet-induced hypertension, renal dysfunction, glomerular injury, and renal interstitial fibrosis. Febuxostat treatment reduced urinary excretion of H2O2 and malondialdehyde and renal thiobarbituric acid reactive substances content. High salt diet increased xanthine oxidoreductase activity and expression in the proximal tubules and medullary interstitium. Febuxostat completely inhibited xanthine oxidoreductase activity and attenuated the high salt diet-increased xanthine oxidoreductase expression. Febuxostat transiently increased urine volume and Na+ excretion without change in blood pressure or urinary creatinine excretion after high salt diet feeding for 4 or 8 weeks. CONCLUSION Febuxostat ameliorates high salt diet-induced hypertension and renal damage with a reduction of renal oxidative stress in Dahl salt-sensitive rats. The antihypertensive effect of febuxostat may be mediated in part by diuretic and natriuretic action.
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Affiliation(s)
- Takahiro Miura
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai
| | - Akihiro Sakuyama
- Department of Physical Therapy, Faculty of Health Science, Juntendo University, Tokyo
| | - Lusi Xu
- Division of General Medicine and Rehabilitation, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, Sendai
| | - Jiahe Qiu
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai
| | - Asako Namai-Takahashi
- Division of General Medicine and Rehabilitation, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, Sendai
| | - Yoshiko Ogawa
- Department of Sport and Medical Science, Faculty of Medical Technology, Teikyo University, Tokyo, Japan
| | - Masahiro Kohzuki
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai
| | - Osamu Ito
- Division of General Medicine and Rehabilitation, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, Sendai
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Abstract
We review recent progress in open quantum system approach to the description of quarkonium in the quark-gluon plasma. A particular emphasis is put on the Lindblad equations for quarkonium and its numerical simulations.
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Nishino A, Ogino R, Miura T, YABU KI, TSUTSUMI K, OKATA J, Nishide K, IFUKUBE T. Role of community centers in promoting sustainable regional life of community-dwelling older adults with frailty. Innov Aging 2021. [PMCID: PMC8681449 DOI: 10.1093/geroni/igab046.2874] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Japan’s long-term care insurance system, which is a formal service, focuses only on older adults requiring care and support. Therefore, to create supportive communities for frail older adults, appropriate measures have been taken to establish community centers within their walking distance. However, the specific functions of these centers largely remain unknown. Accordingly, this study is aimed at clarifying the role of community centers by analyzing their services and management systems. In February 2020, we conducted a questionnaire survey (36% response rate) and four semi-structured interviews in O city, which has 36 community centers (81.45㎢, 36.4% elderly population). Results from the questionnaires revealed that the most frequent users of the community center were in their 70s (61.5%); such centers tended to provide informal services, such as exercises and cafes. Meanwhile, 57.2% of community centers collaborate with formal service providers. Community centers tend to be operated together with parent facilities, such as hospitals and nursing homes(61.2%). The results of the onsite survey showed that, in three cases, the community centers were situated within 200 meters of the parent facility. The findings show that these community centers facilitated creation of a supportive community that provides informal services to the frail elderly. Furthermore, they are operated in cooperation with formal service providers, hospitals, and nursing care facilities and are located in close proximity to one another. To summarize, the community centers continue to play a role in providing seamless services to the frail elderly even as their physical functions evolve.
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Affiliation(s)
- Akiko Nishino
- Former The University of Tokyo, bunkyo-ku, Tokyo, Japan
| | | | - Takahiro Miura
- National Institute of Advanced Industrial Science and Technology (AIST), Kashiwa, Chiba, Japan
| | - Ken-ichiro YABU
- the University of Tokyo, the University of Tokyo, Tokyo, Japan
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Parisio F, Yoshioka K, Sakaguchi K, Goto R, Miura T, Pramudyo E, Ishibashi T, Watanabe N. A laboratory study of hydraulic fracturing at the brittle-ductile transition. Sci Rep 2021; 11:22300. [PMID: 34785676 PMCID: PMC8595383 DOI: 10.1038/s41598-021-01388-y] [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: 03/12/2021] [Accepted: 10/05/2021] [Indexed: 11/10/2022] Open
Abstract
Developing high-enthalpy geothermal systems requires a sufficiently permeable formation to extract energy through fluid circulation. Injection experiments above water’s critical point have shown that fluid flow can generate a network of highly conductive tensile cracks. However, what remains unclear is the role played by fluid and solid rheology on the formation of a dense crack network. The decrease of fluid viscosity with temperature and the thermally activated visco-plasticity in rock are expected to change the deformation mechanisms and could prevent the formation of fractures. To isolate the solid rheological effects from the fluid ones and the associated poromechanics, we devise a hydro-fracture experimental program in a non-porous material, polymethyl methacrylate (PMMA). In the brittle regime, we observe rotating cracks and complex fracture patterns if a non-uniform stress distribution is introduced in the samples. We observe an increase of ductility with temperature, hampering the propagation of hydraulic fractures close to the glass transition temperature of PMMA, which acts as a limit for brittle fracture propagation. Above the glass transition temperature, acoustic emission energy drops of several orders of magnitude. Our findings provide a helpful guidance for future studies of hydro-fracturing of supercritical geothermal systems.
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Affiliation(s)
- Francesco Parisio
- Chair of Soil Mechanics and Foundation Engineering, Technische Universitaet Bergakademie, Freiberg, Germany.
| | - Keita Yoshioka
- Department of Environmental Informatics, Helmholtz Centre for Environmental Research - UFZ, Leipzig, Germany
| | - Kiyotoshi Sakaguchi
- Department of Environmental Studies for Advanced Society, Graduate School of Environmental Studies, Tohoku University, Sendai, Japan
| | - Ryota Goto
- Department of Environmental Studies for Advanced Society, Graduate School of Environmental Studies, Tohoku University, Sendai, Japan
| | - Takahiro Miura
- Department of Environmental Studies for Advanced Society, Graduate School of Environmental Studies, Tohoku University, Sendai, Japan
| | - Eko Pramudyo
- Department of Environmental Studies for Advanced Society, Graduate School of Environmental Studies, Tohoku University, Sendai, Japan
| | - Takuya Ishibashi
- Fukushima Renewable Energy Institute, National Institute of Advanced Industrial Science and Technology (AIST), Koriyama, Japan
| | - Noriaki Watanabe
- Department of Environmental Studies for Advanced Society, Graduate School of Environmental Studies, Tohoku University, Sendai, Japan
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Katano S, Yano T, Ohori K, Kouzu H, Nagaoka R, Honma S, Shimomura K, Numazawa R, Koyama M, Nagano N, Fujito T, Nishikawa R, Hashimoto A, Katayose M, Miura T. Barthel Index score predicts mortality in elderly heart failure: a goal of comprehensive cardiac rehabilitation. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2809] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Accurate prediction of mortality in heart failure (HF) patients is crucial for decision-making regarding HF therapies, but a strategy for the prediction of mortality in elderly HF patients has not been established. In addition, although favorable effects of comprehensive cardiac rehabilitation (CR) on clinical outcomes and functional status in HF patients have been demonstrated, a goal of comprehensive CR during hospitalization for reducing mortality remains unclear.
Aims
We examined whether assessment of basic activities of daily living (ADL) by the Barthel Index (BI), the most widely used tool for assessment of basic ADL, is useful for predicting all-cause mortality in elderly HF patients who received comprehensive CR.
Methods
This study was a single-center, retrospective and observational study. We retrospectively examined 413 HF patients aged ≥65 years (mean age, 78±7 years; 50% female) who were admitted to our institute for management of HF and received comprehensive CR during hospitalization. Functional status for performing basic ADL ability was assessed by the BI within 3 days before discharge. The clinical endpoint was all-cause death during the follow-up period.
Results
Of 413 HF patients, 116 patients (28%) died during a follow-up period of median 1.90-years (interquartile range, 1.20–3.23 years). Results of an adjusted dose-dependent association analysis showed that the hazard ratio (HR) of mortality increases in an almost linear fashion as the BI score decreases and that the BI score corresponding the hazard ratio of 1.0 is 85 (Figure A). To minimize the differences in potential confounding factors between patient with low BI (<85) and patients with high BI (≥85), inverse probability treatment weighting (IPTW) was calculated using propensity score. Kaplan-Meier survival curves, in which selection bias was minimized by use of IPTW for confounders, showed that patients with low BI (<85) had a higher mortality rate than did patients with high BI (≥85) (Figure B). In multivariate Cox regression analyses, low BI was independently associated with higher mortality after adjustment for predictors including brain natriuretic peptide and prior HF hospitalization (IPTW-adjusted HR, 1.75 [95% confidence interval, 1.03–2.98], p<0.001). Inclusion of the BI into the adjustment model improved the accuracy of prediction of mortality (continuous net reclassification improvement, 0.292, p=0.008; integrated discrimination improvement, 0.017, p=0.022).
Conclusion
A BI score of <85 at the time of discharge is associated with increased mortality independently of known prognostic markers, and achievement of functional status of a BI score ≥85 by comprehensive CR during hospitalization may contribute to a favorable outcome in elderly HF patients.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): the Japan Society for the Promotion of Science
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Affiliation(s)
- S Katano
- Sapporo Medical University Hospital, Division of Rehabilitation, Sapporo, Japan
| | - T Yano
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - K Ohori
- Hokkaido Cardiovascular Hospital, Department of Cardiology, Sapporo, Japan
| | - H Kouzu
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - R Nagaoka
- Sapporo Medical University Hospital, Division of Rehabilitation, Sapporo, Japan
| | - S Honma
- Sapporo Cardiovascular Hospital, Department of Rehabilitation, Sapporo, Japan
| | - K Shimomura
- Hakodate Goryoukaku Hospital, Department of Rehabilitation, Hakodate, Japan
| | - R Numazawa
- Sapporo Medical University Hospital, Division of Rehabilitation, Sapporo, Japan
| | - M Koyama
- Sapporo Medical University, Department of Public Health, Sapporo, Japan
| | - N Nagano
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - T Fujito
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - R Nishikawa
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - A Hashimoto
- Sapporo Medical University, Division of Health Care Administration and Management, Sapporo, Japan
| | - M Katayose
- Sapporo Medical University, Second Division of Physical Therapy, Sapporo, Japan
| | - T Miura
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
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Ogawa T, Kouzu H, Osanami A, Tatekoshi Y, Oshima H, Mizuno M, Kuno A, Fujita Y, Ino S, Shimizu M, Ohwada W, Sato T, Yano T, Tanno M, Miura T. Intracellular localization of AMP deaminase and its novel role in BCAA and lipid metabolism in diabetic cardiomyopathy. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.3228] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background
A metabolomic study in the human heart suggested a pivotal role of amino acid (AA) metabolism in fatty acid oxidation, which is dysregulated in type 2 diabetes mellitus (T2DM) and heart failure. We previously reported that aberrant up-regulation of AMP deaminase 3 (AMPD3) impairs cardiac energetics in T2DM hearts, and AMPD3 was recently shown to be activated by fasting and to promote AA metabolism and fatty acid oxidation in skeletal muscle. A sodium glucose cotransporter 2 inhibitor (SGLT2i) has been shown to augment systemic AA metabolism, but its effect on cardiac AA metabolism remains unknown.
Purpose
We hypothesized that AMPD3 has a role in AA and lipid metabolism in cardiomyocytes and that the protective effect of an SGLT2i in diabetic hearts is mediated by modification of AA and lipid metabolism.
Methods and results
Proteomic analyses of AMPD3 immunoprecipitates in rat hearts revealed that AMPD3 interacted with the E1α and E2 components of the BCKDH complex, a rate-limiting enzyme of branched-chain AA (BCAA) catabolism. Immunoblotting using subcellular fractions revealed that BCKDH localized not only in the mitochondria matrix but also in the cytosol and endoplasmic reticulum (ER) and that AMPD3 interacted with BCKDH in the cytosol and ER. Despite comparable expression of BCKDH components and phosphorylation of E1α at Ser293, significant accumulation of BCAA was observed in T2DM rats (OLETF; 317±30 nmol/g) compared to that in control rats (LETO; 213±16 nmol/g), and the accumulation of BCAA was accompanied by up-regulation of AMPD3 in the cytosol and ER by 98% and 231%, respectively. In cardiomyocytes, disruption of BCAA catabolism by knockdown of BCKDH-E1α resulted in a 5.8-fold increase in AMPD3 at the transcriptional level and blunted lipid droplet biogenesis in response to a long-chain fatty acid challenge. Next, myocardial infarction (MI) was induced in LETO and OLETF pretreated with empagliflozin (10 mg/kg/day, 14 days) or a vehicle. Pathway analysis of cardiac metabolites revealed arginine biosynthesis and BCAA metabolism as the most significantly changed pathways with empagliflozin, with BCAA (791±187 nmol/g), glutamate, glutamine and urea being significantly increased. Empagliflozin restored myocardial ATP and survival after MI in OLETF to levels comparable to those in LETO. Electron microscopy showed a significantly higher prevalence of myocardium lipid droplets in OLETF, which was further increased by empagliflozin.
Conclusions
The results support the hypotheses that imbalance of extra-mitochondrial AMPD3-BCKDH interaction underlies dysregulated BCAA metabolism in T2DM hearts and that activation of cardiac AA metabolism by an SGLT2i normalizes fatty acid overload through sequestration into intracellular lipid droplets.
Funding Acknowledgement
Type of funding sources: Foundation. Main funding source(s): Boehringer Ingelheim
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Affiliation(s)
- T Ogawa
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - H Kouzu
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - A Osanami
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - Y Tatekoshi
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - H Oshima
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - M Mizuno
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - A Kuno
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - Y Fujita
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - S Ino
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - M Shimizu
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - W Ohwada
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - T Sato
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - T Yano
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - M Tanno
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - T Miura
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
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Nagase C, Tanno M, Kouzu H, Miki T, Nishida J, Murakami N, Kokubu N, Nagano N, Nishikawa R, Yoshioka N, Tsuchida A, Kita H, Ohnishi H, Miura T. Is GLP-1 insufficiency a coronary risk factor? A multicenter observational study, BOREAS-CAD2. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1064] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background and aim
Glucagon-like peptide-1 (GLP-1) regulates insulin secretion and also affords pleiotropic effects including protective effects on blood vessels. Multiple factors regulate GLP-1 secretion after meals, but a group of apparently healthy subjects showed blunted responses of GLP-1 secretion in our previous study. In this study, we examined the possibility that the reduced capacity of GLP-1 secretion is associated with increased extent of coronary artery stenosis in non-diabetic patients.
Methods and results
Non-diabetic patients who were admitted for coronary angiography without a history of coronary interventions were enrolled. Coronary artery stenosis was quantified by Gensini score (GS), and GS ≥10 was used as an outcome variable based on results of earlier studies indicating its predictive value for cardiovascular events. The patients (mean age, 66.5±8.8 years; 71% males, n=173) underwent oral 75 g-glucose tolerant tests for determination of glucose, insulin and active GLP-1 levels. The area under the curve of plasma active GLP-1 (AUC-GLP-1) was determined as an index of GLP-1 secretion capacity. AUC-GLP-1 was not correlated with fasting glucose, AUC-glucose, serum lipids, indices of insulin sensitivity or estimated glomerular filtration rate. In multivariate logistic regression analysis for GS ≥10, AUC-GLP-1 < median, age and hypertension were selected as explanatory variables, though fasting GLP-1 level was not selected.
Conclusion
The findings indicate significant association of reduced GLP-1 secretion capacity with increased extent of coronary artery stenosis in non-diabetic patients. A causal relationship between change in GLP-1 secretion capacity and coronary stenosis remains to be examined by a longitudinal study
Funding Acknowledgement
Type of funding sources: Private company. Main funding source(s): This study was supported in part by a research grant from Investigator-Initiated Studies Program of Merck Sharp & Dohme Corp./MSD K.K.
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Affiliation(s)
- C Nagase
- Sapporo Medical University, Sapporo, Japan
| | - M Tanno
- Sapporo Medical University, Sapporo, Japan
| | - H Kouzu
- Sapporo Medical University, Sapporo, Japan
| | - T Miki
- Sapporo Medical University, Sapporo, Japan
| | - J Nishida
- Sapporo Medical University, Sapporo, Japan
| | - N Murakami
- Sapporo Medical University, Sapporo, Japan
| | - N Kokubu
- Sapporo Medical University, Sapporo, Japan
| | - N Nagano
- Sapporo Medical University, Sapporo, Japan
| | | | - N Yoshioka
- Sapporo Circulation Hospital, Sapporo, Japan
| | | | - H Kita
- JCHO Hokushin Hospital, Sapporo, Japan
| | - H Ohnishi
- Sapporo Medical University, Sapporo, Japan
| | - T Miura
- Sapporo Medical University, Sapporo, Japan
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Hatanaka N, Xu B, Yasugi M, Morino H, Tagishi H, Miura T, Shibata T, Yamasaki S. Chlorine dioxide is a more potent antiviral agent against SARS-CoV-2 than sodium hypochlorite. J Hosp Infect 2021; 118:20-26. [PMID: 34536532 PMCID: PMC8442261 DOI: 10.1016/j.jhin.2021.09.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [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: 09/06/2021] [Accepted: 09/09/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND A new coronavirus (SARS-CoV-2) abruptly emerged in Wuhan, China, in 2019 and rapidly spread globally to cause the COVID-19 pandemic. AIM To examine the anti-SARS-CoV-2 activity of the potent disinfectant Cleverin, the major disinfecting component of which is chlorine dioxide (ClO2); and to compare the results with that of sodium hypochlorite in the presence or absence of 0.5% or 1.0% foetal bovine serum (FBS). METHODS Concentrated SARS-CoV-2 viruses were treated with various concentrations of ClO2 and sodium hypochlorite and 50% tissue culture infective dose was calcurated to evaluate the antiviral activity of each chemical. FINDINGS When SARS-CoV-2 viruses were treated with 0.8 ppm ClO2 or sodium hypochlorite, viral titre was decreased only by 1 log10 TCID50/mL in 3 min. However, the viral titre was decreased by more than 4 log10 TCID50/mL when treated with 80 ppm of each chemical for 10 s regardless of presence or absence of FBS. It should be emphasized that treatment with 24 ppm of ClO2 inactivated more than 99.99% SARS-CoV-2 within 10 s or 99.99% SARS-CoV-2 in 1 min in the presence of 0.5% or 1.0% FBS, respectively. By contrast, 24 ppm of sodium hypochlorite inactivated only 99% or 90% SARS-CoV-2 in 3 min under similar conditions. Notably, except for ClO2, the other components of Cleverin such as sodium chlorite, decaglycerol monolaurate, and silicone showed no significant antiviral activity. CONCLUSION Altogether, the results strongly suggest that although ClO2 and sodium hypochlorite are strong antiviral agents in absence of organic matter but in presence of organic matter, ClO2 is a more potent antiviral agent against SARS-CoV-2 than sodium hypochlorite.
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Affiliation(s)
- N Hatanaka
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka, Japan; Asian Health Science Research Institute, Osaka Prefecture University, Osaka, Japan; Osaka International Research Center for Infectious Diseases, Osaka Prefecture University, Osaka, Japan
| | - B Xu
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka, Japan
| | - M Yasugi
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka, Japan; Asian Health Science Research Institute, Osaka Prefecture University, Osaka, Japan; Osaka International Research Center for Infectious Diseases, Osaka Prefecture University, Osaka, Japan
| | - H Morino
- Research and Development Center, Taiko Pharmaceutical Co. Ltd, Kyoto, Japan
| | - H Tagishi
- Research and Development Center, Taiko Pharmaceutical Co. Ltd, Kyoto, Japan
| | - T Miura
- Research and Development Center, Taiko Pharmaceutical Co. Ltd, Kyoto, Japan
| | - T Shibata
- Research and Development Center, Taiko Pharmaceutical Co. Ltd, Kyoto, Japan
| | - S Yamasaki
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Osaka, Japan; Asian Health Science Research Institute, Osaka Prefecture University, Osaka, Japan; Osaka International Research Center for Infectious Diseases, Osaka Prefecture University, Osaka, Japan.
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Otsuka S, Ujiie H, Ishikawa K, Miura T, Wakasa S, Kato T. Novel Treatment of Widespread Empyema Necessitatis. Ann Thorac Surg 2021; 112:e471. [PMID: 34492217 DOI: 10.1016/j.athoracsur.2021.08.008] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 07/25/2021] [Accepted: 08/02/2021] [Indexed: 11/26/2022]
Affiliation(s)
- Shinya Otsuka
- Department of Cardiovascular and Thoracic Surgery, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Hideki Ujiie
- Department of Cardiovascular and Thoracic Surgery, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Kosuke Ishikawa
- Department of Plastic and Reconstructive Surgery, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Takahiro Miura
- Department of Plastic and Reconstructive Surgery, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Satoru Wakasa
- Department of Cardiovascular and Thoracic Surgery, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Tatsuya Kato
- Department of Cardiovascular and Thoracic Surgery, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Hokkaido, Japan.
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Qiu J, Sato Y, Xu L, Miura T, Kohzuki M, Ito O. Chronic Exercise Protects against the Progression of Renal Cyst Growth and Dysfunction in Rats with Polycystic Kidney Disease. Med Sci Sports Exerc 2021; 53:2485-2494. [PMID: 34310502 PMCID: PMC8594502 DOI: 10.1249/mss.0000000000002737] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Introduction Polycystic kidney disease (PKD) is a genetic disorder characterized by the progressive enlargement of renal epithelial cysts and renal dysfunction. Previous studies have reported the beneficial effects of chronic exercise on chronic kidney disease. However, the effects of chronic exercise have not been fully examined in PKD patients or models. The effects of chronic exercise on the progression of PKD were investigated in a polycystic kidney (PCK) rat model. Methods Six-week-old male PCK rats were divided into a sedentary group and an exercise group. The exercise group underwent forced treadmill exercise for 12 wk (28 m·min−1, 60 min·d−1, 5 d·wk−1). After 12 wk, renal function and histology were examined, and signaling cascades of PKD progression, including arginine vasopressin (AVP), were investigated. Results Chronic exercise reduced the excretion of urinary protein, liver-type fatty acid–binding protein, plasma creatinine, urea nitrogen, and increased plasma irisin and urinary AVP excretion. Chronic exercise also slowed renal cyst growth, glomerular damage, and interstitial fibrosis and led to reduced Ki-67 expression. Chronic exercise had no effect on cAMP content but decreased the renal expression of B-Raf and reduced the phosphorylation of extracellular signal-regulated kinase (ERK), mammalian target of rapamycin (mTOR), and S6. Conclusion Chronic exercise slows renal cyst growth and damage in PCK rats, despite increasing AVP, with the downregulation of the cAMP/B-Raf/ERK and mTOR/S6 pathways in the kidney of PCK rats.
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Affiliation(s)
- Jiahe Qiu
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, Japan Division of General Medicine and Rehabilitation, Tohoku Medical and Pharmaceutical University Faculty of Medicine, Sendai, Japan
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Xu L, Hu G, Qiu J, Fan Y, Ma Y, Miura T, Kohzuki M, Ito O. High Fructose-Induced Hypertension and Renal Damage Are Exaggerated in Dahl Salt-Sensitive Rats via Renal Renin-Angiotensin System Activation. J Am Heart Assoc 2021; 10:e016543. [PMID: 34259014 PMCID: PMC8483472 DOI: 10.1161/jaha.120.016543] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 11/16/2022]
Abstract
Background High‐fructose diet (HFr) induces hypertension and renal damage. However, it has been unknown whether the HFr‐induced hypertension and renal damage are exaggerated in subjects with salt sensitivity. We tested impacts of HFr in Dahl salt‐sensitive (DS) and salt‐resistant (DR) rats. Methods and Results Male DS and DR rats were fed control diet or HFr (60% fructose) with normal‐salt content. After 12 weeks, plasma and urinary parameters, renal histological characteristics, and renal expression of renin‐angiotensin system components were examined. Furthermore, effects of renin‐angiotensin system inhibitors were also examined in DS rats fed the HFr. HFr elevated blood pressure in DS rats but not in DR rats. HFr increased urinary albumin and liver type fatty acid binding protein excretions in both rats, but the excretions were exaggerated in DS rats. HFr increased plasma lipids and uric acid in both rats, whereas HFr increased creatinine clearance in DS rats but not DR rats. Although HFr decreased plasma renin activity in DS rats, HFr‐induced glomerular injury, afferent arteriolar thickening, and renal interstitial fibrosis were exaggerated in DS rats. HFr increased renal expression of angiotensinogen, renin, (pro)renin receptor, angiotensin‐converting enzyme, and angiotensin II type 1 receptor in DS rat, whereas HFr increased only angiotensin‐converting enzyme expression and decreased renin and angiotensin II type 1 receptor expressions in DR rats. Enalapril and candesartan attenuated the HFr‐induced hypertension, albuminuria, glomerular hyperfiltration, and renal damage in DS rats. Conclusion HFr‐induced hypertension and renal damage are exaggerated in DS rats via renal renin‐angiotensin system activation, which can be controlled by renin‐angiotensin system inhibitors.
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Affiliation(s)
- Lusi Xu
- Department of Internal Medicine and Rehabilitation Science Tohoku University Graduate School of Medicine Sendai Japan
| | - Gaizun Hu
- Department of Pharmacology and Toxicology School of Medicine Virginia Commonwealth University Richmond VA
| | - Jiahe Qiu
- Department of Internal Medicine and Rehabilitation Science Tohoku University Graduate School of Medicine Sendai Japan
| | - Yuxuan Fan
- Department of Internal Medicine and Rehabilitation Science Tohoku University Graduate School of Medicine Sendai Japan
| | - Yixuan Ma
- Department of Internal Medicine and Rehabilitation Science Tohoku University Graduate School of Medicine Sendai Japan
| | - Takahiro Miura
- Department of Internal Medicine and Rehabilitation Science Tohoku University Graduate School of Medicine Sendai Japan
| | - Masahiro Kohzuki
- Department of Internal Medicine and Rehabilitation Science Tohoku University Graduate School of Medicine Sendai Japan
| | - Osamu Ito
- Department of Internal Medicine and Rehabilitation Science Tohoku University Graduate School of Medicine Sendai Japan.,Division of General Medicine and Rehabilitation Tohoku Medical and Pharmaceutical University Faculty of Medicine Sendai Japan
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Miura T, Asatani K, Sakata I. Large-scale analysis of delayed recognition using sleeping beauty and the prince. Appl Netw Sci 2021; 6:48. [PMID: 34226873 PMCID: PMC8242290 DOI: 10.1007/s41109-021-00389-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 06/12/2021] [Indexed: 06/13/2023]
Abstract
Delayed recognition in which innovative discoveries are re-evaluated after a long period has significant implications for scientific progress. The quantitative method to detect delayed recognition is described as the pair of Sleeping Beauty (SB) and its Prince (PR), where SB refers to citation bursts and its PR triggers SB's awakeness calculated based on their citation history. This research provides the methods to extract valid and large SB-PR pairs from a comprehensive Scopus dataset and analyses how PR discovers SB. We prove that the proposed method can extract long-sleep and large-scale SB and its PR best covers the previous multi-disciplinary pairs, which enables to observe delayed recognition. Besides, we show that the high-impact SB-PR pairs extracted by the proposed method are more likely to be located in the same field. This indicates that a hidden SB that your research can awaken may exist closer than you think. On the other hand, although SB-PR pairs are fat-tailed in Beauty Coefficient and more likely to integrate separate fields compared to ordinary citations, it is not possible to predict which citation leads to awake SB using the rarity of citation. There is no easy way to limit the areas where SB-PR pairs occur or detect it early, suggesting that researchers and administrators need to focus on a variety of areas. This research provides comprehensive knowledge about the development of scientific findings that will be evaluated over time.
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Affiliation(s)
- Takahiro Miura
- Department of Technology Management for Innovation, School of Engineering, The University of Tokyo, 7-3-1 Faculty of Engineering Bldg 3, Hongo, Bunkyo, Tokyo, 113-8656 Japan
| | - Kimitaka Asatani
- Department of Technology Management for Innovation, School of Engineering, The University of Tokyo, 7-3-1 Faculty of Engineering Bldg 3, Hongo, Bunkyo, Tokyo, 113-8656 Japan
| | - Ichiro Sakata
- Department of Technology Management for Innovation, School of Engineering, The University of Tokyo, 7-3-1 Faculty of Engineering Bldg 3, Hongo, Bunkyo, Tokyo, 113-8656 Japan
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Miura T, Yamamoto Y, Murao N, Maeda T, Osawa M, Hayashi T, Funayama E. Combined internal and external negative pressure wound therapy: breakthrough treatment for lymphocutaneous intractable fistula. Surg Today 2021; 51:1630-1637. [PMID: 33993364 DOI: 10.1007/s00595-021-02283-9] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 01/31/2021] [Indexed: 11/25/2022]
Abstract
PURPOSE Lymphocutaneous fistula after lymph node dissection is intractable, yet there is no established treatment strategy. This study demonstrates the wound closure time achieved by a new method of combined internal and external negative pressure wound therapy (CIEN) in patients with lymphocutaneous fistula. METHODS The subjects of this study were six consecutive patients with lymphocutaneous fistula after lymphatic surgery, who were treated with CIEN between 2018 and 2020. The CIEN technique can be summarized as follows: first, internal foam is inserted into the fistula from the opening of the fenestration. Next, a slightly larger area of external foam is applied above the fistula flap outside the external margin of the foam-filled fistula. After bridging the internal foam and external foam, negative-pressure wound therapy is carried out on this bridging foam block. RESULTS CIEN led to rapid and complete wound healing in all six patients. Fistula flap margin ischemia developed in one patient, but adjusting the mode and pressure settings resulted in improvement. Three patients suffered contact dermatitis. There were no signs of tumor or fistula recurrence in any patients after at least 3 months of follow-up. CONCLUSION CIEN is an effective and less invasive treatment modality than the conventional method of managing lymphocutaneous fistula.
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Affiliation(s)
- Takahiro Miura
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Yuhei Yamamoto
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Naoki Murao
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Taku Maeda
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Masayuki Osawa
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Toshihiko Hayashi
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Emi Funayama
- Department of Plastic and Reconstructive Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan.
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Fujii S, Miura T, Oikawa T, Qin XY, Kojima S, Kagechika H. Design, synthesis and antitumor activity of phthalazine-1,4-dione-based menaquinone analogs. Bioorg Med Chem Lett 2021; 43:128065. [PMID: 33915257 DOI: 10.1016/j.bmcl.2021.128065] [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: 03/19/2021] [Revised: 04/18/2021] [Accepted: 04/23/2021] [Indexed: 10/21/2022]
Abstract
New chemotherapeutics are needed to treat hepatocellular carcinoma (HCC), and menaquinones, homologs of vitamin K consisting of a 1,4-naphthoquinone core and a (poly)isoprene chain, are potential candidates. In this study, we designed and synthesized a series of phthalazine-1,4-dione-based menaquinone analogs. Among them, compounds bearing the intact isoprene chain exhibited selective antiproliferative activity towards HCC cell line JHH7, as compared with normal hepatocytes. The geranyl derivative 10 showed submicromolar potency, and might be a promising lead compound for anticancer agents.
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Affiliation(s)
- Shinya Fujii
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Takahiro Miura
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Tsuyoshi Oikawa
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Xian-Yang Qin
- Liver Cancer Prevention Research Unit, RIKEN Cluster for Pioneering Research, Wako, Saitama 351-0198, Japan
| | - Soichi Kojima
- Liver Cancer Prevention Research Unit, RIKEN Cluster for Pioneering Research, Wako, Saitama 351-0198, Japan
| | - Hiroyuki Kagechika
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan.
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Sato Y, Qiu J, Hirose T, Miura T, Sato Y, Kohzuki M, Ito O. Metformin slows liver cyst formation and fibrosis in experimental model of polycystic liver disease. Am J Physiol Gastrointest Liver Physiol 2021; 320:G464-G473. [PMID: 33439105 DOI: 10.1152/ajpgi.00120.2020] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Polycystic liver disease (PLD) is a hereditary liver disease in which the number of cysts increases over time, causing various abdominal symptoms and poor quality of life. Although effective treatment for PLD has not been established, we recently reported that long-term exercise ameliorated liver cyst formation and fibrosis with the activation of AMP-activated protein kinase (AMPK) in polycystic kidney (PCK) rats, a PLD model. Therefore, the aim of this study was to investigate whether metformin, an indirect AMPK activator, was effective in PCK rats. PCK rats were randomly divided into a control (Con) group and a metformin-treated (Met) group. The Met group was treated orally with metformin in drinking water. After 12 wk, liver function, histology, and signaling cascades of PLD were examined in the groups. Metformin did not affect the body weight or liver weight, but it reduced liver cyst formation, cholangiocyte proliferation, and fibrosis around the cyst. Metformin increased the phosphorylation of AMPK and tuberous sclerosis complex 2 and decreased the phosphorylation of mammalian target of rapamycin, S6, and extracellular signal-regulated kinase and the expression of cystic fibrosis transmembrane conductance regulator, aquaporin I, transforming growth factor-β, and type 1 collagen without changes in apoptosis or collagen degradation factors in the liver. Metformin slows the development of cyst formation and fibrosis with the activation of AMPK and inhibition of signaling cascades responsible for cellular proliferation and fibrosis in the liver of PCK rats.NEW & NOTEWORTHY This study indicates that metformin, an indirect AMPK activator slows liver cyst formation and fibrosis in PLD rat model. Metformin attenuates excessive cell proliferation in the liver with the inactivation of mTOR and ERK pathways. Metformin also reduces the expression of proteins responsible for cystic fluid secretion and liver fibrosis. Metformin and AMPK activators may be potent drugs for polycystic liver disease.
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Affiliation(s)
- Yoichi Sato
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Jiahe Qiu
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takuo Hirose
- Division of Endocrinology and Applied Medical Science, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takahiro Miura
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yasunori Sato
- Department of Human Pathology, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - Masahiro Kohzuki
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Osamu Ito
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, Japan.,Division of General Medicine and Rehabilitation, Tohoku Medical and Pharmaceutical University Faculty of Medicine, Sendai, Japan
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Terasaki K, Mizuno C, Fujiishi S, Amioka S, Nonaka T, Itani J, Takahashi Y, Miura T, Yasufuku T, Oya H, Katayama T, Okuda K, Matsumoto J, Mitsumoto Y, Sawai N, Mizuno M, Shima T, Okanoue T. Garcin Syndrome Due to Meningeal Carcinomatosis from Gastric Cancer. Intern Med 2021; 60:855-858. [PMID: 33087672 PMCID: PMC8024967 DOI: 10.2169/internalmedicine.5797-20] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
A 58-year-old woman presented to our hospital with complaints of dysphagia. Esophagogastroduodenoscopy showed an esophagogastric junction tumor with multiple duodenal intramural metastases, and computed tomography showed peritoneal metastasis. In the middle of her fourth cycle of chemotherapy, she displayed symptoms of a left-sided multi-cranial nerve palsy. She was diagnosed with Garcin syndrome caused by meningeal carcinomatosis from gastric cancer based on the results of gadolinium-enhanced brain magnetic resonance imaging and cytology of the cerebrospinal fluid. It is important not to overlook meningeal irritation symptoms or paralysis of cranial nerves and to consider the possibility of Garcin syndrome caused by meningeal carcinomatosis.
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Affiliation(s)
- Kei Terasaki
- Department of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Japan
| | - Chiemi Mizuno
- Department of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Japan
| | - Shinsaku Fujiishi
- Department of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Japan
| | - Shohei Amioka
- Department of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Japan
| | - Takahiro Nonaka
- Department of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Japan
| | - Junichiro Itani
- Department of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Japan
| | - Yusuke Takahashi
- Department of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Japan
| | - Takahiro Miura
- Department of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Japan
| | - Tomoko Yasufuku
- Department of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Japan
| | - Hirohisa Oya
- Department of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Japan
| | - Takayuki Katayama
- Department of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Japan
| | - Kotaro Okuda
- Department of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Japan
| | - Junko Matsumoto
- Department of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Japan
| | - Yasuhide Mitsumoto
- Department of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Japan
| | - Naoki Sawai
- Department of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Japan
| | - Masayuki Mizuno
- Department of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Japan
| | - Toshihide Shima
- Department of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Japan
| | - Takeshi Okanoue
- Department of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Japan
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Miyazaki S, Shimoji H, Suzuki R, Chinushi I, Takayanagi H, Yaguchi H, Miura T, Maekawa K. Expressions of conventional vitellogenin and vitellogenin-like A in worker brains are associated with a nursing task in a ponerine ant. Insect Mol Biol 2021; 30:113-121. [PMID: 33150669 DOI: 10.1111/imb.12682] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 04/18/2020] [Revised: 10/26/2020] [Accepted: 10/30/2020] [Indexed: 06/11/2023]
Abstract
In eusocial insect colonies, non-reproductive workers often perform different tasks. Tasks of an individual worker are shifted depending on various factors, e.g., age and colony demography. Although a vitellogenin (Vg) gene play regulatory roles in both reproductive and non-reproductive division of labours in a honeybee, it has been shown that the insect Vg underwent multiple gene duplications and sub-functionalisation, especially in apical ant lineages. The regulatory roles of duplicated Vgs were suggested to change evolutionarily among ants, whereas such roles in phylogenetically basal ants remain unclear. Here, we examined the expression patterns of conventional Vg (CVg), Vg-like A, Vg-like B and Vg-like C, as well as Vg receptor, during the task shift in an age-dependent manner and under experimental manipulation of colony demography in a primitive ant Diacamma sp. Expressions of CVg and Vg-like A in a brain were associated with a nursing task. It is suggested that associations of brain expressions of these Vgs with worker tasks were acquired in the basal ant lineage, and that such Vg functions could have sub-functionalised in the derived ant lineage.
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Affiliation(s)
- S Miyazaki
- Graduate School of Agriculture, Tamagawa University, Tokyo, Japan
| | - H Shimoji
- Faculty of Environmental Earth Science, Hokkaido University, Sapporo, Japan
- School of Science and Technology, Kwansei Gakuin University, Sanda, Japan
| | - R Suzuki
- Graduate School of Science and Engineering, University of Toyama, Toyama, Japan
| | - I Chinushi
- Graduate School of Agriculture, Tamagawa University, Tokyo, Japan
| | - H Takayanagi
- Faculty of Environmental Earth Science, Hokkaido University, Sapporo, Japan
| | - H Yaguchi
- School of Science and Technology, Kwansei Gakuin University, Sanda, Japan
- Graduate School of Science and Engineering, University of Toyama, Toyama, Japan
| | - T Miura
- Faculty of Environmental Earth Science, Hokkaido University, Sapporo, Japan
- Misaki Marine Biological Station, School of Science, The University of Tokyo, Miura, Japan
| | - K Maekawa
- Faculty of Science, Academic Assembly, University of Toyama, Toyama, Japan
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Abstract
BACKGROUND Polycystic liver disease (PLD) is a hereditary liver disease with progressive enlargement of fluid-filled liver cysts, which causes abdominal discomfort and worsens quality of life. Long-term exercise has beneficial effects in various organs, but the effects of long-term exercise on PLD are unclear. Therefore, the aim of this study was to investigate whether long-term exercise inhibits liver cyst formation and fibrosis. METHODS Polycystic kidney (PCK) rats, a model of PLD, were randomly divided into a sedentary group and a long-term exercise group, which underwent treadmill running for 12 wk (28 m·min, 60 min·d, 5 d·wk). Sprague-Dawley (SD) rats were set as a control group. After 12 wk, exercise capacity, histology, and signaling cascades of PLD were examined. RESULTS Compared with control SD rats, PCK rats showed a low exercise capacity before exercise protocol. After 12 wk, the exercise improved the exercise capacity and ameliorated liver cyst formation and fibrosis. The exercise significantly decreased the number of Ki-67-positive cells; the expression of cystic fibrosis transmembrane conductance regulator, aquaporin 1, transforming growth factor β, and type 1 collagen; and the phosphorylation of extracellular signal-regulated kinase, mammalian target of rapamycin and S6. It also increased the phosphorylation of AMP-activated protein kinase in the liver of PCK rats. CONCLUSIONS The present results indicated that long-term moderate-intensity exercise ameliorates liver cyst formation and fibrosis with the inhibition of signaling cascades responsible for cellular proliferation and fibrosis in PCK rats.
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Affiliation(s)
- Yoichi Sato
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, JAPAN
| | - Jiahe Qiu
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, JAPAN
| | - Takahiro Miura
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, JAPAN
| | - Masahiro Kohzuki
- Department of Internal Medicine and Rehabilitation Science, Tohoku University Graduate School of Medicine, Sendai, JAPAN
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Katano S, Yano T, Tsukada T, Kouzu H, Honma S, Inoue T, Takamura Y, Nagaoka R, Ohori K, Koyama M, Nagano N, Nishikawa R, Hashimoto A, Katayose M, Miura T. Clinical determinants and prognostic impact of osteoporosis in patients with chronic heart failure. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3418] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Despite accumulating evidence of a close association between orthopedic fractures and chronic heart failure (CHF), the clinical risk factors of osteoporosis, defined as reduction in bone mineral densities (BMDs), in CHF patients have not been systematically analyzed. In addition, the impact of osteoporosis on prognosis of CHF remains unclear.
Aims
We aimed to clarify the prevalence, clinical risk factors, and prognostic impact of osteoporosis in CHF patients.
Methods
We retrospectively examined 303 CHF patients (75 years, [interquartile range (IQR), 66–82 years]; 41% female). BMDs at the lumber spine, femoral neck, and total femur were measured by dual-energy X-ray absorptiometry (DEXA), and osteoporosis was diagnosed when BMD at any of the three sites was less than 70% of Young Adult Mean.
Results
The prevalence of osteoporosis in the CHF patients was 40%. Patients with osteoporosis were older (79 [IQR, 74–86] vs. 72 [IQR, 62–80] years), included a large percentage of females, had slower gait speed and had lower body mass index (BMI). Loop diuretics and warfarin were used more frequently and direct oral anticoagulants (DOACs) were used less frequently in patients with osteoporosis than in patients without osteoporosis. Multivariate logistic regression analysis indicated that sex (odds ratio [OR] 5.07, 95% Confidence Interval [CI] 2.68–9.61, p<0.01), BMI (OR, 0.83; 95% CI, 0.75–0.91; p<0.01), gait speed (OR, 0.80; 95% CI, 0.70–0.92; p<0.01), loop diuretics use (OR, 2.52; 95% CI, 1.20–5.27; p=0.01) and no DOACs use (OR, 0.43; 95% CI, 0.19–0.96; p=0.04) were independently associated with osteoporosis. During the mean follow-up period of 290±254 days, 92 patients (30.4%) had adverse events. When patients with osteoporosis were divided into subgroups according to the number of sites with BMD of an osteoporosis level, Kaplan-Meier survival curves showed that the rate of adverse events (death and cardiovascular events) was higher in patients with osteoporotic BMD at two or more sites than in patients without osteoporosis (51% vs. 23%, p=0.03) (Figure). In multivariate Cox regression analyses, osteoporotic BMD at two or more sites was an independent predictor of adverse events after adjustment for age, sex, and NT-proBNP level (Hazard ratio, 1.74; 95% CI, 1.01–2.99; p=0.04).
Conclusion
The risk of osteoporosis may be increased in users of loop diuretics and may be decreased in users of DOACs in CHF patients. Extent of osteoporosis is a novel predictor of adverse events in CHF patients.
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): The Japan Society for the Promotion of Science KAKENHI
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Affiliation(s)
- S Katano
- Sapporo Medical University Hospital, Division of Rehabilitation, Sapporo, Japan
| | - T Yano
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - T Tsukada
- Social Welfare Corporation, Hokkaido Social Work Association Obihiro Hospital, Cardiac Rehabilitation Center, Obihiro, Japan
| | - H Kouzu
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - S Honma
- Sapporo Cardiovascular Hospital, Department of Rehabilitation, Sapporo, Japan
| | - T Inoue
- Sapporo Medical University Hospital, Division of Rehabilitation, Sapporo, Japan
| | - Y Takamura
- Sapporo Medical University Hospital, Division of Rehabilitation, Sapporo, Japan
| | - R Nagaoka
- Sapporo Medical University Hospital, Division of Rehabilitation, Sapporo, Japan
| | - K Ohori
- Hokkaido Cardiovascular Hospital, Department of Cardiology, Sapporo, Japan
| | - M Koyama
- Sapporo Medical University, Department of Public Health, Sapporo, Japan
| | - N Nagano
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - R Nishikawa
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - A Hashimoto
- Sapporo Medical University, Division of Health Care Administration and Management, Sapporo, Japan
| | - M Katayose
- Sapporo Medical University, Second Division of Physical Therapy, Sapporo, Japan
| | - T Miura
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
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Nishikawa K, Nagae A, Miura T, Katoh T, Kanzaki Y, Abe N, Yokota D, Yanagisawa T, Senda K, Wakabayashi T, Oyama Y, Okina Y, Nakazawa S, Tsukada S, Kagoshima M. Impact of frailty on super elderly patients with peripheral artery disease from the I-PAD 3 year registry. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2391] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Unlike age, frailty is often not taken into account in treatment indications of Endovascular treatment (EVT). One of the reason is that there was little known the relationship between frailty and the outcome of EVT for super elderly patients with peripheral artery disease (PAD). We investigate impacts of frailty on the super elderly patient prognosis who underwent EVT.
Purpose
To investigate impacts of frailty on the super elderly patient prognosis who underwent EVT.
Methods
From August 2015 to July 2016, 335 consecutive patients who underwent EVT were enrolled in the I-PAD registry from 7 institutes in Nagano prefecture. Among them, we selected and analyzed 91 super elderly PAD patients (≥80 years-old) and divided them into two groups:those with moderate or higher frailty (Clinical Frailty Scale (CFS) ≥6, n=28) and those without (CFS ≤5, n=63). The primary endpoints were cardiovascular death and major adverse cardiovascular and limb events (MACLE), defined as a composite of cardiovascular death, myocardial infarction, stroke, admission for heart failure, major amputation and revascularization.
Results
The median follow-up period was 2.7 years. Freedom rate from cardiovascular death and MACLE were significantly lower among patients with moderate or higher frailty than among those without (47.0% vs. 58.0%, P=0.03; 39.1% vs. 68.5%, P<0.01).
Conclusion
The prognosis of super elderly patients with moderate or higher frailty is worse than those without.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
| | - A Nagae
- Shinshu University Hospital, Matsumoto, Japan
| | - T Miura
- Nagano Municipal Hospital, Nagano, Japan
| | - T Katoh
- Shinshu University Hospital, Matsumoto, Japan
| | - Y Kanzaki
- Shinonoi General Hospital, Nagano, Japan
| | - N Abe
- Nagano Red Cross Hospital, Nagano, Japan
| | - D Yokota
- Iida Hospital, Department of Cardiovascular Medicine, Iida, Japan
| | - T Yanagisawa
- Saku Central Hospital, Department of Cardiovascular Medicine, Saku, Japan
| | - K Senda
- Aizawa Hospital, Matsumoto, Japan
| | | | - Y Oyama
- Japanese Red Cross Society Suwa Hospital, Suwa, Japan
| | - Y Okina
- Joetsu General Hospital, Joetsu, Japan
| | | | - S Tsukada
- Joetsu General Hospital, Joetsu, Japan
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50
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Igaki Y, Osanami A, Tanno M, Sato T, Ogawa T, Yano T, Kouzu H, Miura T. Inhibition of xanthine oxidase ameliorates functional and metabolic impairment in type 2 diabetic hearts under pressure overload. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3618] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
We recently reported that upregulated AMP deaminase (AMPD), via reduction in the tissue adenine nucleotide pool, contributes to exacerbation of diastolic dysfunction under pressure overload in OLETF, a rat model of obese type 2 diabetes (T2DM). Upregulated AMPD also possibly promotes xanthine oxidase (XO)-mediated ROS production, since AMPD deaminases AMP to IMP, which is further converted to inosine, providing substrates of XO, hypoxanthine and xanthine. Here, we examined the hypothesis that inhibition of XO ameliorates the pressure overload-induced diastolic dysfunction by suppression of ROS-mediated mitochondrial dysfunction and/or vascular dysfunction in T2DM rats.
Methods and results
Metabolomic analyses revealed that levels of xanthine and uric acid in the LV myocardium were significantly higher by 37% and 51%, respectively, in OLETF than in LETO, non-diabetic control rats, under the condition of phenylephrine-induced pressure overloading (200–230 mmHg). Myocardial XO activity in OLETF was 57.9% higher than that in LETO, which may be attributed to 31% higher level of inosine, a positive regulator of XO, in OLETF than in LETO. The activity of XO was significantly attenuated by administration of topiroxostat, an XO inhibitor at 0.5 mg/kg/day for 14 days. Pressure volume loop analyses showed that the pressure overloading resulted in significantly higher LVEDP in OLETF than in LETO (18.3±1.5 vs. 12.2±1.3 mmHg, p<0.05, n=7), though LVEDPs at baseline were comparable in OLETF and LETO (5.6±0.4 vs. 4.7±0.7 mmHg). Treatment with topiroxostat significantly suppressed the pressure overload-induced elevation of LVEDP in OLETF (18.3±1.5 vs. 11.3±1.1 mmHg, p<0.05) but not in LETO. Under the condition of pressure overloading, Ea/Ees, an index for ventricular-arterial coupling, was higher in OLETF than in LETO (2.3±0.3 vs. 1.6±0.3, p<0.05), and it was also improved by topiroxostat in OLETF (1.2±0.2, p<0.05). Myocardial ATP content was lower in OLETF than in LETO (2966±400 vs. 1818±171 nmol/g wet tissue, p<0.05), and treatment with topiroxostat significantly restored the ATP level (2629±307 nmol/g wet tissue). The LV myocardium of OLETF under pressure overload showed significantly higher level of malondialdehyde and 4-hydroxynonenal, an indicator of lipid peroxidation, than that of LETO. Measurement of oxygen consumption rate by Seahorse XFe96 Analyzer in mitochondria isolated from LV tissues revealed that state 3 respiration was significantly suppressed in OLETF by 43% compared to LETO, and it was restored by treatment with topiroxostat.
Conclusion
Both activity and substrates of XO are increased in T2DM hearts, in which upregulation of AMPD may play a role. Inhibition of XO ameliorates pressure overload-induced diastolic dysfunction and improves ventricular-arterial coupling in diabetic hearts, most likely through protection of mitochondrial function from ROS-mediated injury.
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): Grant-in-aid for Scientific Research (#26461132, #17K09584) from the Japanese Society for the Promotion of Science
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Affiliation(s)
- Y Igaki
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - A Osanami
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - M Tanno
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - T Sato
- Sapporo Medical University, Department of Cellular physiology and Signal Transduction, Sapporo, Japan
| | - T Ogawa
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - T Yano
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - H Kouzu
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
| | - T Miura
- Sapporo Medical University, Department of Cardiovascular, Renal and Metabolic Medicine, Sapporo, Japan
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