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Kikuchi N, Goto T, Katsumata N, Murakami Y, Shinohara T, Maebayashi Y, Sakakibara A, Saito C, Hasebe Y, Hoshiai M, Nemoto A, Naito A. Correlation between the Closure Time of Patent Ductus Arteriosus in Preterm Infants and Long-Term Neurodevelopmental Outcome. J Cardiovasc Dev Dis 2024; 11:26. [PMID: 38248896 PMCID: PMC10816731 DOI: 10.3390/jcdd11010026] [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: 12/15/2023] [Revised: 01/09/2024] [Accepted: 01/15/2024] [Indexed: 01/23/2024] Open
Abstract
In patent ductus arteriosus (PDA) in preterm infants, the relationship between treatment timing and long-term developmental prognosis remains unclear. The purpose of this study was to clarify the relationship between the age in days when ductus arteriosus closure occurred and long-term development. Preterm infants with a birth weight of less than 1500 g who were admitted to our NICU over a period of 9 years (2011-2019) and were diagnosed with PDA were included. A new version of the K-type developmental test for corrected ages of 1.5 and 3 years was used as an index of development. The relationship between the duration of PDA and the developmental index was evaluated using Pearson's correlation coefficient, and multiple regression analysis was performed. Development quotient (DQ) at the ages of 1.5 and 3 years showed a correlation with the PDA closure date and the standard deviation (SD) value of the term birth weight. Multiple regression analysis showed a positive correlation of the DQ at 1.5 and 3 years with the SD value of the term birth weight and a negative correlation with the PDA closure date. In addition, a stronger correlation was found in the "posture/motor" sub-item at 3 years. On the other hand, the analysis including preterm infants without PDA showed that preterm infants with PDA closure on the 6th day or later after birth had a significantly lower 3-year-old DQ than preterm infants with a PDA exposure within 5 days. In conclusion, it is suggested that the decrease in cerebral blood flow due to PDA in preterm infants has an adverse effect on long-term neurodevelopment. Appropriate interventions, including surgical treatment for PDA in preterm infants without delay, ideally within 5 days of birth, may be effective in improving the developmental prognosis.
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Affiliation(s)
- Natsumi Kikuchi
- Department of Neonatology, Perinatal Center, Yamanashi Prefectural Central Hospital, Kofu 400-8506, Japan; (N.K.); (N.K.); (Y.M.); (T.S.); (Y.M.); (A.S.); (C.S.); (A.N.); (A.N.)
- Department of Pediatrics, School of Medicine, Yamanashi University, Kofu 409-3821, Japan;
| | - Taichiro Goto
- Lung Cancer and Respiratory Disease Center, Yamanashi Prefectural Central Hospital, Kofu 400-8506, Japan
| | - Nobuyuki Katsumata
- Department of Neonatology, Perinatal Center, Yamanashi Prefectural Central Hospital, Kofu 400-8506, Japan; (N.K.); (N.K.); (Y.M.); (T.S.); (Y.M.); (A.S.); (C.S.); (A.N.); (A.N.)
| | - Yasushi Murakami
- Department of Neonatology, Perinatal Center, Yamanashi Prefectural Central Hospital, Kofu 400-8506, Japan; (N.K.); (N.K.); (Y.M.); (T.S.); (Y.M.); (A.S.); (C.S.); (A.N.); (A.N.)
| | - Tamao Shinohara
- Department of Neonatology, Perinatal Center, Yamanashi Prefectural Central Hospital, Kofu 400-8506, Japan; (N.K.); (N.K.); (Y.M.); (T.S.); (Y.M.); (A.S.); (C.S.); (A.N.); (A.N.)
| | - Yuki Maebayashi
- Department of Neonatology, Perinatal Center, Yamanashi Prefectural Central Hospital, Kofu 400-8506, Japan; (N.K.); (N.K.); (Y.M.); (T.S.); (Y.M.); (A.S.); (C.S.); (A.N.); (A.N.)
| | - Aiko Sakakibara
- Department of Neonatology, Perinatal Center, Yamanashi Prefectural Central Hospital, Kofu 400-8506, Japan; (N.K.); (N.K.); (Y.M.); (T.S.); (Y.M.); (A.S.); (C.S.); (A.N.); (A.N.)
| | - Chisato Saito
- Department of Neonatology, Perinatal Center, Yamanashi Prefectural Central Hospital, Kofu 400-8506, Japan; (N.K.); (N.K.); (Y.M.); (T.S.); (Y.M.); (A.S.); (C.S.); (A.N.); (A.N.)
| | - Yohei Hasebe
- Department of Pediatrics, School of Medicine, Yamanashi University, Kofu 409-3821, Japan;
| | - Minako Hoshiai
- Cardiovascular Center, Yamanashi Prefectural Central Hospital, Kofu 400-8506, Japan;
| | - Atsushi Nemoto
- Department of Neonatology, Perinatal Center, Yamanashi Prefectural Central Hospital, Kofu 400-8506, Japan; (N.K.); (N.K.); (Y.M.); (T.S.); (Y.M.); (A.S.); (C.S.); (A.N.); (A.N.)
| | - Atsushi Naito
- Department of Neonatology, Perinatal Center, Yamanashi Prefectural Central Hospital, Kofu 400-8506, Japan; (N.K.); (N.K.); (Y.M.); (T.S.); (Y.M.); (A.S.); (C.S.); (A.N.); (A.N.)
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2
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Watanabe D, Hasebe Y, Mitsui H, Oishi N, Kasai S, Akahane K, Kojika S, Inukai T. Prenatal Torsion of Radial Polydactyly: A Gangrenous Mass at the Base of the Thumb. Acta Med Okayama 2023; 77:651-653. [PMID: 38145940 DOI: 10.18926/amo/66158] [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] [Subscribe] [Scholar Register] [Indexed: 12/27/2023]
Abstract
A patient was born with a mass at the base of the thumb approximately 1.5 cm in diameter on the radial side of the fingers. The mass had globular swelling filled with hemorrhagic fluid and was dark red. X-rays and histology of the excised specimen suggested the diagnosis of gangrene and torsion of polydactyly. Prenatal torsion of polydactyly is not a common occurrence; moreover, prenatal torsion of polydactyly has only been found in ulnar polydactyly. Our case is a novel case of radial polydactyly that was gangrenous at birth owing to prenatal torsion. Diagnosing such a mass at the base of the thumb is important.
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Affiliation(s)
- Daisuke Watanabe
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi
| | - Yohei Hasebe
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi
| | - Hiroshi Mitsui
- Department of Dermatology, Faculty of Medicine, University of Yamanashi
| | - Naoki Oishi
- Department of Pathology, Faculty of Medicine, University of Yamanashi
| | - Shin Kasai
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi
| | - Koshi Akahane
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi
| | - Satoru Kojika
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi
| | - Takeshi Inukai
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi
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3
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Sunaga Y, Watanabe A, Katsumata N, Toda T, Yoshizawa M, Kono Y, Hasebe Y, Koizumi K, Hoshiai M, Kawakami E, Inukai T. A simple scoring model based on machine learning predicts intravenous immunoglobulin resistance in Kawasaki disease. Clin Rheumatol 2023; 42:1351-1361. [PMID: 36627530 PMCID: PMC9832252 DOI: 10.1007/s10067-023-06502-1] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 12/25/2022] [Accepted: 12/30/2022] [Indexed: 01/12/2023]
Abstract
INTRODUCTION In Kawasaki disease (KD), accurate prediction of intravenous immunoglobulin (IVIG) resistance is crucial to reduce a risk for developing coronary artery lesions. OBJECTIVE To establish a simple scoring model predicting IVIG resistance in KD patients based on the machine learning model. METHODS A retrospective cohort study of 1002 KD patients diagnosed at 12 facilities for 10 years, in which 22.7% were resistant to initial IVIG treatment. We performed machine learning with diverse models using 30 clinical variables at diagnosis in 801 and 201 cases for training and test datasets, respectively. SHAP was applied to identify the variables that influenced the prediction model. A scoring model was designed using the influential clinical variables based on the Shapley additive explanation results. RESULTS Light gradient boosting machine model accurately predicted IVIG resistance (area under the receiver operating characteristic curve (AUC), 0.78; sensitivity, 0.50; specificity, 0.88). Next, using top three influential features (days of illness at initial therapy, serum levels of C-reactive protein, and total cholesterol), we designed a simple scoring system. In spite of its simplicity, it predicted IVIG resistance (AUC, 0.72; sensitivity, 0.49; specificity, 0.82) as accurately as machine learning models. Moreover, accuracy of our scoring system with three clinical features was almost identical to that of Gunma score with seven clinical features (AUC, 0.73; sensitivity, 0.53; specificity, 0.83), a well-known logistic regression scoring model. CONCLUSION A simple scoring system based on the findings in machine learning seems to be a useful tool to accurately predict IVIG resistance in KD patients.
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Affiliation(s)
- Yuto Sunaga
- Faculty of Medicine, Department of Pediatrics, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Atsushi Watanabe
- Faculty of Medicine, Department of Pediatrics, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Nobuyuki Katsumata
- Faculty of Medicine, Department of Pediatrics, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
- Department of Neonatology, Yamanashi Prefectural Central Hospital, Kofu, Yamanashi, Japan
| | - Takako Toda
- Faculty of Medicine, Department of Pediatrics, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan.
- Department of Pediatric Cardiology, National Cerebral and Cardiovascular Center, Osaka, Japan.
| | - Masashi Yoshizawa
- Faculty of Medicine, Department of Pediatrics, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Yosuke Kono
- Faculty of Medicine, Department of Pediatrics, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Yohei Hasebe
- Faculty of Medicine, Department of Pediatrics, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Keiichi Koizumi
- Faculty of Medicine, Department of Pediatrics, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
- Department of Pediatrics, Fujiyoshida Municipal Hospital, Fujiyoshida, Yamanashi, Japan
| | - Minako Hoshiai
- Faculty of Medicine, Department of Pediatrics, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
- Department of Pediatrics, Yamanashi Prefectural Central Hospital, Kofu, Yamanashi, Japan
| | - Eiryo Kawakami
- Artificial Intelligence Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
- Institute for Advanced Academic Research (IAAR), Chiba University, Chiba, Japan
- Advanced Data Science Project, RIKEN Information R&D and Strategy Headquarters, Kanagawa, Japan
| | - Takeshi Inukai
- Faculty of Medicine, Department of Pediatrics, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
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4
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Sunaga Y, Watanabe A, Katsumata N, Toda T, Yoshizawa M, Kono Y, Hasebe Y, Koizumi K, Hoshiai M, Kawakami E, Inukai T. Correction to: A simple scoring model based on machine learning predicts intravenous immunoglobulin resistance in Kawasaki disease. Clin Rheumatol 2023; 42:1501. [PMID: 36918446 PMCID: PMC10102140 DOI: 10.1007/s10067-023-06555-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Affiliation(s)
- Yuto Sunaga
- Faculty of Medicine, Department of Pediatrics, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Atsushi Watanabe
- Faculty of Medicine, Department of Pediatrics, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Nobuyuki Katsumata
- Faculty of Medicine, Department of Pediatrics, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
- Department of Neonatology, Yamanashi Prefectural Central Hospital, Kofu, Yamanashi, Japan
| | - Takako Toda
- Faculty of Medicine, Department of Pediatrics, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan.
- Department of Pediatric Cardiology, National Cerebral and Cardiovascular Center, Osaka, Japan.
| | - Masashi Yoshizawa
- Faculty of Medicine, Department of Pediatrics, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Yosuke Kono
- Faculty of Medicine, Department of Pediatrics, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Yohei Hasebe
- Faculty of Medicine, Department of Pediatrics, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Keiichi Koizumi
- Faculty of Medicine, Department of Pediatrics, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
- Department of Pediatrics, Fujiyoshida Municipal Hospital, Fujiyoshida, Yamanashi, Japan
| | - Minako Hoshiai
- Faculty of Medicine, Department of Pediatrics, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
- Department of Pediatrics, Yamanashi Prefectural Central Hospital, Kofu, Yamanashi, Japan
| | - Eiryo Kawakami
- Artificial Intelligence Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
- Institute for Advanced Academic Research (IAAR), Chiba University, Chiba, Japan
- Advanced Data Science Project, RIKEN Information R&D and Strategy Headquarters, Kanagawa, Japan
| | - Takeshi Inukai
- Faculty of Medicine, Department of Pediatrics, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
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5
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Kono Y, Sano F, Hasebe Y, Inukai T, Kaga Y. Status epilepticus as the first symptom in a patient with coronavirus disease 2019. Pediatr Int 2023; 65:e15544. [PMID: 37243971 DOI: 10.1111/ped.15544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 12/08/2022] [Accepted: 03/31/2023] [Indexed: 05/29/2023]
Affiliation(s)
- Yosuke Kono
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Fumikazu Sano
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Yohei Hasebe
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Takeshi Inukai
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Yoshimi Kaga
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
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6
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Fukushi I, Ikeda K, Takeda K, Yoshizawa M, Kono Y, Hasebe Y, Pokorski M, Okada Y. Minocycline prevents hypoxia-induced seizures. Front Neural Circuits 2023; 17:1006424. [PMID: 37035503 PMCID: PMC10073501 DOI: 10.3389/fncir.2023.1006424] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 02/27/2023] [Indexed: 04/11/2023] Open
Abstract
Severe hypoxia induces seizures, which reduces ventilation and worsens the ictal state. It is a health threat to patients, particularly those with underlying hypoxic respiratory pathologies, which may be conducive to a sudden unexpected death in epilepsy (SUDEP). Recent studies provide evidence that brain microglia are involved with both respiratory and ictal processes. Here, we investigated the hypothesis that microglia could interact with hypoxia-induced seizures. To this end, we recorded electroencephalogram (EEG) and acute ventilatory responses to hypoxia (5% O2 in N2) in conscious, spontaneously breathing adult mice. We compared control vehicle pre-treated animals with those pre-treated with minocycline, an inhibitory modulator of microglial activation. First, we histologically confirmed that hypoxia activates microglia and that pre-treatment with minocycline blocks hypoxia-induced microglial activation. Then, we analyzed the effects of minocycline pre-treatment on ventilatory responses to hypoxia by plethysmography. Minocycline alone failed to affect respiratory variables in room air or the initial respiratory augmentation in hypoxia. The comparative results showed that hypoxia caused seizures, which were accompanied by the late phase ventilatory suppression in all but one minocycline pre-treated mouse. Compared to the vehicle pre-treated, the minocycline pre-treated mice showed a delayed occurrence of seizures. Further, minocycline pre-treated mice tended to resist post-ictal respiratory arrest. These results suggest that microglia are conducive to seizure activity in severe hypoxia. Thus, inhibition of microglial activation may help suppress or prevent hypoxia-induced ictal episodes.
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Affiliation(s)
- Isato Fukushi
- Faculty of Health Sciences, Aomori University of Health and Welfare, Aomori, Japan
- Clinical Research Center, Murayama Medical Center, Musashimurayama, Japan
- *Correspondence: Isato Fukushi
| | - Keiko Ikeda
- Homeostatic Mechanism Research Unit, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, Japan
| | - Kotaro Takeda
- Clinical Research Center, Murayama Medical Center, Musashimurayama, Japan
- Faculty of Rehabilitation, School of Health Sciences, Fujita Health University, Toyoake, Japan
| | - Masashi Yoshizawa
- Clinical Research Center, Murayama Medical Center, Musashimurayama, Japan
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, Chuo, Japan
| | - Yosuke Kono
- Clinical Research Center, Murayama Medical Center, Musashimurayama, Japan
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, Chuo, Japan
| | - Yohei Hasebe
- Clinical Research Center, Murayama Medical Center, Musashimurayama, Japan
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, Chuo, Japan
| | | | - Yasumasa Okada
- Clinical Research Center, Murayama Medical Center, Musashimurayama, Japan
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7
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Watanabe D, Hasebe Y, Kasai S, Shinohara T, Maebayashi Y, Katsumata N, Nemoto A, Naitoh A. PTPN11 c.853T>C (p.Phe285Leu) mutation in Noonan syndrome with chylothorax. Nagoya J Med Sci 2022; 84:871-876. [PMID: 36544606 PMCID: PMC9748315 DOI: 10.18999/nagjms.84.4.871] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 12/14/2021] [Indexed: 12/24/2022]
Abstract
Recent advances in molecular and genetic approaches have identified a number of genes responsible for Noonan syndrome (NS). However, there has been limited analysis of the genotype-phenotype correlation of NS patients. Here, we report the case of a Japanese patient with NS possessing a c.853T>C (p.Phe285Leu) mutation in the gene encoding protein-tyrosine phosphatase, nonreceptor-type 11 (PTPN11). To clarify genotype-phenotype correlations, the accumulation of data on the clinical course of patients with genetically confirmed NS is important. We summarized the cases with mutations at PTPN11 position 285 and found that c854T>C (p.Phe285Ser) is the most common mutation at this position. In these reports, although little is mentioned about the genotype-phenotype correlation, two patients with NS possessing the PTPN11 c854T>C (p.Phe285Ser) mutation accompanied by chylothorax are described. There is still a lack of detailed information about the phenotype associated with the c.853T>C (p.Phe285Leu) mutation observed in this case. More research is needed to better understand these cases.
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Affiliation(s)
- Daisuke Watanabe
- Department of Neonatology, Perinatal Center, Yamanashi Prefectural Central Hospital, Kofu, Japan
| | - Yohei Hasebe
- Department of Neonatology, Perinatal Center, Yamanashi Prefectural Central Hospital, Kofu, Japan
| | - Shin Kasai
- Department of Neonatology, Perinatal Center, Yamanashi Prefectural Central Hospital, Kofu, Japan
| | - Tamao Shinohara
- Department of Neonatology, Perinatal Center, Yamanashi Prefectural Central Hospital, Kofu, Japan
| | - Yuki Maebayashi
- Department of Neonatology, Perinatal Center, Yamanashi Prefectural Central Hospital, Kofu, Japan
| | - Nobuyuki Katsumata
- Department of Neonatology, Perinatal Center, Yamanashi Prefectural Central Hospital, Kofu, Japan
| | - Atsushi Nemoto
- Department of Neonatology, Perinatal Center, Yamanashi Prefectural Central Hospital, Kofu, Japan
| | - Atsushi Naitoh
- Department of Neonatology, Perinatal Center, Yamanashi Prefectural Central Hospital, Kofu, Japan
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8
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Shinohara T, Hasebe Y, Watanabe D, Sakurayama T, Maebayashi Y, Numano F, Saito T, Koizumi K, Nemoto A, Saito A, Oyama T, Oyachi N, Hoshiai M, Naitoh A. Giant pulmonary bulla causing respiratory compromise in a very low‐birthweight infant. Clin Case Rep 2022; 10:e6577. [DOI: 10.1002/ccr3.6577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 06/02/2022] [Accepted: 10/19/2022] [Indexed: 11/16/2022] Open
Affiliation(s)
- Tamao Shinohara
- Department of Neonatology Yamanashi Prefectural Central Hospital Yamanashi Japan
| | - Yohei Hasebe
- Department of Pediatrics University of Yamanashi Faculty of Medicine Graduate School of Medicine Yamanashi Japan
| | - Daisuke Watanabe
- Department of Pediatrics University of Yamanashi Faculty of Medicine Graduate School of Medicine Yamanashi Japan
| | - Tomohide Sakurayama
- Department of Neonatology Yamanashi Prefectural Central Hospital Yamanashi Japan
| | - Yuki Maebayashi
- Department of Neonatology Yamanashi Prefectural Central Hospital Yamanashi Japan
| | - Fuminori Numano
- Department of Pediatric Surgery Yamanashi Prefectural Central Hospital Yamanashi Japan
| | - Tomohiro Saito
- Department of Pediatrics Yamanashi Prefectural Central Hospital Yamanashi Japan
| | - Keiichi Koizumi
- Department of Pediatrics Fujiyoshida Municipal Hospital Yamanashi Japan
| | - Atsushi Nemoto
- Department of Neonatology Yamanashi Prefectural Central Hospital Yamanashi Japan
| | - Akitoshi Saito
- Department of Radiology Yamanashi Prefectural Central Hospital Yamanashi Japan
| | - Toshio Oyama
- Department of Pathology Yamanashi Prefectural Central Hospital Yamanashi Japan
| | - Noboru Oyachi
- Department of Pediatric Surgery Yamanashi Prefectural Central Hospital Yamanashi Japan
| | - Minako Hoshiai
- Department of Pediatrics Yamanashi Prefectural Central Hospital Yamanashi Japan
| | - Atsushi Naitoh
- Department of Neonatology Yamanashi Prefectural Central Hospital Yamanashi Japan
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9
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Yoshizawa M, Fukushi I, Takeda K, Kono Y, Hasebe Y, Koizumi K, Ikeda K, Pokorski M, Toda T, Okada Y. Role of microglia in blood pressure and respiratory responses to acute hypoxic exposure in rats. J Physiol Sci 2022; 72:26. [PMID: 36229778 DOI: 10.1186/s12576-022-00848-y] [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: 10/21/2021] [Accepted: 09/02/2022] [Indexed: 11/10/2022]
Abstract
Microglia modulate cardiorespiratory activities during chronic hypoxia. It has not been clarified whether microglia are involved in the cardiorespiratory responses to acute hypoxia. Here we investigated this issue by comparing cardiorespiratory responses to two levels of acute hypoxia (13% O2 for 4 min and 7% O2 for 5 min) in conscious unrestrained rats before and after systemic injection of minocycline (MINO), an inhibitor of microglia activation. MINO increased blood pressure but not lung ventilation in the control normoxic condition. Acute hypoxia stimulated cardiorespiratory responses in MINO-untreated rats. MINO failed to significantly affect the magnitude of hypoxia-induced blood pressure elevation. In contrast, MINO tended to suppress the ventilatory responses to hypoxia. We conclude that microglia differentially affect cardiorespiratory regulation depending on the level of blood oxygenation. Microglia suppressively contribute to blood pressure regulation in normoxia but help maintain ventilatory augmentation in hypoxia, which underscores the dichotomy of central regulatory pathways for both systems.
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Affiliation(s)
- Masashi Yoshizawa
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan.,Clinical Research Center, Murayama Medical Center, Tokyo, Japan
| | - Isato Fukushi
- Clinical Research Center, Murayama Medical Center, Tokyo, Japan.,Faculty of Health Sciences, Aomori University of Health and Welfare, Aomori, Japan
| | - Kotaro Takeda
- Clinical Research Center, Murayama Medical Center, Tokyo, Japan.,Faculty of Rehabilitation, School of Health Sciences, Fujita Health University, Toyoake, Japan
| | - Yosuke Kono
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan.,Clinical Research Center, Murayama Medical Center, Tokyo, Japan
| | - Yohei Hasebe
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan.,Clinical Research Center, Murayama Medical Center, Tokyo, Japan
| | - Keiichi Koizumi
- Department of Pediatrics, Fujiyoshida Municipal Hospital, Yamanashi, Japan
| | - Keiko Ikeda
- Institute of Innovative Research, Homeostatic Mechanism Research Unit, Tokyo Institute of Technology, Yokohama, Japan
| | | | - Takako Toda
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Yasumasa Okada
- Clinical Research Center, Murayama Medical Center, Tokyo, Japan.
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Fukushi I, Yokota S, Takeda K, Terada J, Umeda A, Yoshizawa M, Kono Y, Hasebe Y, Onimaru H, Pokorski M, Okada Y. Dual orexin receptor blocker suvorexant attenuates hypercapnic ventilatory augmentation in mice. Brain Res 2022; 1795:148061. [PMID: 36037880 DOI: 10.1016/j.brainres.2022.148061] [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: 07/19/2022] [Revised: 08/14/2022] [Accepted: 08/23/2022] [Indexed: 11/17/2022]
Abstract
Suvorexant (Belsomra(R)), a dual orexin receptor antagonist widely used in the treatment of insomnia, inhibits the arousal system in the brain. However, the drug's ventilatory effects have not been fully explored. This study aims to investigate the expression of orexin receptors in respiratory neurons and the effects of suvorexant on ventilation. Immunohistology of brainstem orexin receptor OX2R expression was performed in adult mice (n=4) in (1) rostral ventral respiratory group (rVRG) neurons projecting to the phrenic nucleus (PhN) retrogradely labeled by Fluoro-Gold (FG) tracer, (2) neurons immunoreactive for paired like homeobox 2b (Phox2b) in the parafacial respiratory group/retrotrapezoid nucleus (pFRG/RTN), and (3) neurons immunoreactive for neurokinin 1 receptor (NK1R) and somatostatin (SST) in the preBötzinger complex (preBötC). Additionally, we measured in vivo ventilatory responses to hyperoxic hypercapnia (5% CO2) and hypoxia (10% O2) before and after suvorexant pretreatment (10 and cumulative 100 mg/kg) in unrestrained mice (n=10) in a body plethysmograph. We found the OX2R immunoreactive materials in pFRG/RTN Phox2b and preBötC NK1R/SST immunoreactive neurons but not in FG-labeled rVRG neurons, which suggests the involvement of orexin in respiratory control. Further, suvorexant expressly suppressed the hypercapnic ventilatory augmentation, otherwise unaffecting ventilation. Central orexin is involved in shaping the hypercapnic ventilatory chemosensitivity. Suppression of hypercapnic ventilatory augmentation by the orexin receptor antagonist suvorexant calls for caution in its use in pathologies that may progress to hypercapnic respiratory failure, or sleep-disordered breathing. Clinical trials are required to explore the role of targeted pharmacological inhibition of orexin in ventilatory pathologies.
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Affiliation(s)
- Isato Fukushi
- Faculty of Health Sciences, Aomori University of Health and Welfare, Aomori, Japan; Clinical Research Center, Murayama Medical Center, Musashimurayama, Japan.
| | - Shigefumi Yokota
- Department of Anatomy and Neuroscience, Shimane University School of Medicine, Izumo, Japan
| | - Kotaro Takeda
- Clinical Research Center, Murayama Medical Center, Musashimurayama, Japan; Faculty of Rehabilitation, School of Health Sciences, Fujita Health University, Toyoake, Japan
| | - Jiro Terada
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Akira Umeda
- Department of Respiratory Medicine, International University of Health and Welfare Shioya Hospital, Yaita, Japan
| | - Masashi Yoshizawa
- Clinical Research Center, Murayama Medical Center, Musashimurayama, Japan; Department of Pediatrics, Faculty of Medicine, University of Yamanashi, Chuo, Japan
| | - Yosuke Kono
- Clinical Research Center, Murayama Medical Center, Musashimurayama, Japan; Department of Pediatrics, Faculty of Medicine, University of Yamanashi, Chuo, Japan
| | - Yohei Hasebe
- Clinical Research Center, Murayama Medical Center, Musashimurayama, Japan; Department of Pediatrics, Faculty of Medicine, University of Yamanashi, Chuo, Japan
| | - Hiroshi Onimaru
- Department of Physiology, Showa University School of Medicine, Tokyo, Japan
| | | | - Yasumasa Okada
- Clinical Research Center, Murayama Medical Center, Musashimurayama, Japan
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11
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Endo A, Nemoto A, Hanawa K, Ishikawa T, Koshiishi M, Maebayashi Y, Hasebe Y, Naito A, Kobayashi Y, Isobe K, Kawano Y, Hanawa T. Index for the appropriate vancomycin dosing in premature neonates and infants. Pediatr Int 2022; 64:e14905. [PMID: 34197665 PMCID: PMC9255595 DOI: 10.1111/ped.14905] [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: 01/26/2021] [Revised: 06/13/2021] [Accepted: 06/30/2021] [Indexed: 12/03/2022]
Abstract
BACKGROUND In neonates, vancomycin (VCM) is used to treat Gram-positive bacterial infections. However, VCM blood concentrations are affected by gestational age, bodyweight (BW), and renal function. The initial VCM dose adjustment can therefore be difficult, and few reports have evaluated this issue. In this study, we investigated the factors determining the appropriate VCM dosing schedule in neonates, especially premature infants. METHODS The VCM dosage and trough concentrations were retrospectively investigated from the initial treatment to maintenance therapy in neonatal intensive care unit patients who underwent therapeutic drug monitoring. We examined the average single-administration VCM dosage during maintenance therapy. We then compared the actual VCM dose with that calculated using an index comprising six items that influence the VCM daily dose (postnatal age, gestational age, BW, serum creatinine level, urine output, and lactate level). RESULTS Twenty premature infants were included. The average BW of patients at the initial VCM administration was 975 g. During maintenance therapy, the average VCM dose was 8.4 mg/kg, and the median trough concentration was 12.4 μg/mL. When we applied the six-item index, 18 of 20 patients (90%) had concordant results between the actual VCM dosing schedule and the VCM calculated using the index. CONCLUSIONS The average VCM dose and six-item index can facilitate the transition from the initial VCM dose to an appropriate dose in many cases and contribute to early treatment in low-birthweight infants with more variable BW, distribution volumes, and renal function. In conclusion, our six-item index may help standardize VCM administration in premature infants.
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Affiliation(s)
- Aiju Endo
- Department of Pharmacy, Yamanashi Prefectural Central Hospital, Yamanashi, Japan
| | - Atsushi Nemoto
- Department of Neonatology, Yamanashi Prefectural Central Hospital, Yamanashi, Japan
| | - Kazumi Hanawa
- Department of Pharmacy, Yamanashi Prefectural Central Hospital, Yamanashi, Japan
| | - Takahiro Ishikawa
- Department of Pharmacy, Yamanashi Prefectural Central Hospital, Yamanashi, Japan
| | - Mai Koshiishi
- Department of Pharmacy, Yamanashi Prefectural Central Hospital, Yamanashi, Japan
| | - Yuki Maebayashi
- Department of Neonatology, Yamanashi Prefectural Central Hospital, Yamanashi, Japan
| | - Yohei Hasebe
- Department of Neonatology, Yamanashi Prefectural Central Hospital, Yamanashi, Japan
| | - Atsushi Naito
- Department of Neonatology, Yamanashi Prefectural Central Hospital, Yamanashi, Japan
| | - Yoshifumi Kobayashi
- Department of Pharmacy, Yamanashi Prefectural Central Hospital, Yamanashi, Japan
| | - Katsuhiko Isobe
- Department of Pharmacy, Yamanashi Prefectural Central Hospital, Yamanashi, Japan
| | - Yayoi Kawano
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, Chiba, Japan
| | - Takehisa Hanawa
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, Chiba, Japan
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12
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Katsumata N, Harama D, Toda T, Sunaga Y, Yoshizawa M, Kono Y, Hasebe Y, Koizumi K, Hoshiai M, Saito T, Hokibara S, Kobayashi K, Goto M, Sano T, Tsuruta M, Nakamura M, Mizorogi S, Ohta M, Mochizuki M, Sato H, Yokomichi H, Inukai T. Prevention Measures for COVID-19 and Changes in Kawasaki Disease Incidence. J Epidemiol 2021; 31:573-580. [PMID: 34483151 PMCID: PMC8502831 DOI: 10.2188/jea.je20210132] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 08/12/2021] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Kawasaki disease is suspected to be triggered by previous infection. The prevention measures for coronavirus disease 2019 (COVID-19) have reportedly reduced transmission of certain infectious diseases. Under these circumstances, the prevention measures for COVID-19 may reduce the incidence of Kawasaki disease. METHODS We conducted a retrospective study using registration datasets of patients with Kawasaki disease who were diagnosed in all 11 inpatient pediatric facilities in Yamanashi Prefecture. The eligible cases were 595 cases that were diagnosed before the COVID-19 pandemic (from January 2015 through February 2020) and 38 cases that were diagnosed during the COVID-19 pandemic (from March through November 2020). Incidence of several infectious disease were evaluated using data from the Infectious Disease Weekly Report conducted by the National Institute of Infectious Diseases. RESULTS Epidemics of various infectious diseases generally remained at low levels during the first 9 months (March through November 2020) of the COVID-19 pandemic. Moreover, the incidence of COVID-19 was 50-80 times lower than the incidence in European countries and the United States. The total number of 38 cases with Kawasaki disease for the 9 months during the COVID-19 pandemic was 46.3% (-3.5 standard deviations [SDs] of the average [82.0; SD, 12.7 cases] for the corresponding 9 months of the previous 5 years. None of the 38 cases was determined to be triggered by COVID-19 based on their medical histories and negative results of severe acute respiratory syndrome coronavirus 2 testing at admission. CONCLUSION These observations provide a new epidemiological evidence for the notion that Kawasaki disease is triggered by major infectious diseases in children.
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Affiliation(s)
- Nobuyuki Katsumata
- Department of Pediatrics, University of Yamanashi, Yamanashi, Japan
- Departments of Neonatology, Yamanashi Central Prefectural Hospital, Yamanashi, Japan
| | - Daisuke Harama
- Department of Pediatrics, University of Yamanashi, Yamanashi, Japan
- Department of Pediatrics, Yamanashi Central Prefectural Hospital, Yamanashi, Japan
| | - Takako Toda
- Department of Pediatrics, University of Yamanashi, Yamanashi, Japan
| | - Yuto Sunaga
- Department of Pediatrics, University of Yamanashi, Yamanashi, Japan
| | | | - Yosuke Kono
- Department of Pediatrics, University of Yamanashi, Yamanashi, Japan
| | - Yohei Hasebe
- Department of Pediatrics, University of Yamanashi, Yamanashi, Japan
| | - Keiichi Koizumi
- Department of Pediatrics, Fujiyoshida Municipal Hospital, Yamanashi, Japan
| | - Minako Hoshiai
- Department of Pediatrics, Yamanashi Central Prefectural Hospital, Yamanashi, Japan
| | - Tomohiro Saito
- Department of Pediatrics, Yamanashi Central Prefectural Hospital, Yamanashi, Japan
| | - Sho Hokibara
- Department of Pediatrics, Kofu Municipal Hospital, Kofu, Yamanashi, Japan
| | - Koji Kobayashi
- Department of Pediatrics, Yamanashi Kosei Hospital, Yamanashi, Japan
| | - Miwa Goto
- Department of Pediatrics, National Hospital Organization Kofu National Hospital, Yamanashi, Japan
| | - Tomoaki Sano
- Department of Pediatrics, Yamanashi Red Cross Hospital, Yamanashi, Japan
| | - Makoto Tsuruta
- Department of Pediatrics, Kofu-kyoritsu Hospital, Yamanashi, Japan
| | - Makoto Nakamura
- Department of Pediatrics, Fujiyoshida Municipal Hospital, Yamanashi, Japan
| | - Sonoko Mizorogi
- Department of Pediatrics, Nirasaki City Hospital, Yamanashi, Japan
| | - Masanori Ohta
- Department of Pediatrics, Tsuru Municipal General Hospital, Yamanashi, Japan
| | - Mie Mochizuki
- Department of Pediatrics, Kyonan Medical Center Fujikawa Hospital, Yamanashi, Japan
| | - Hiroki Sato
- Department of Pediatrics, Suwa Central Hospital, Nagano, Japan
| | - Hiroshi Yokomichi
- Department of Health Sciences, University of Yamanashi, Yamanashi, Japan
| | - Takeshi Inukai
- Department of Pediatrics, University of Yamanashi, Yamanashi, Japan
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13
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Fukushi I, Takeda K, Pokorski M, Kono Y, Yoshizawa M, Hasebe Y, Nakao A, Mori Y, Onimaru H, Okada Y. Activation of Astrocytes in the Persistence of Post-hypoxic Respiratory Augmentation. Front Physiol 2021; 12:757731. [PMID: 34690820 PMCID: PMC8531090 DOI: 10.3389/fphys.2021.757731] [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] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 09/15/2021] [Indexed: 11/16/2022] Open
Abstract
Acute hypoxia increases ventilation. After cessation of hypoxia loading, ventilation decreases but remains above the pre-exposure baseline level for a time. However, the mechanism of this post-hypoxic persistent respiratory augmentation (PHRA), which is a short-term potentiation of breathing, has not been elucidated. We aimed to test the hypothesis that astrocytes are involved in PHRA. To this end, we investigated hypoxic ventilatory responses by whole-body plethysmography in unanesthetized adult mice. The animals breathed room air, hypoxic gas mixture (7% O2, 93% N2) for 2min, and again room air for 10min before and after i.p. administration of low (100mg/kg) and high (300mg/kg) doses of arundic acid (AA), an astrocyte inhibitor. AA suppressed PHRA, with the high dose decreasing ventilation below the pre-hypoxic level. Further, we investigated the role of the astrocytic TRPA1 channel, a putative ventilatory hypoxia sensor, in PHRA using astrocyte-specific Trpa1 knockout (asTrpa1−/−) and floxed Trpa1 (Trpa1f/f) mice. In both Trpa1f/f and asTrpa1−/− mice, PHRA was noticeable, indicating that the astrocyte TRPA1 channel was not directly involved in PHRA. Taken together, these results indicate that astrocytes mediate the PHRA by mechanisms other than TRPA1 channels that are engaged in hypoxia sensing.
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Affiliation(s)
- Isato Fukushi
- Faculty of Health Sciences, Uekusa Gakuen University, Chiba, Japan.,Clinical Research Center, Murayama Medical Center, Musashimurayama, Japan
| | - Kotaro Takeda
- Clinical Research Center, Murayama Medical Center, Musashimurayama, Japan.,Faculty of Rehabilitation, School of Healthcare, Fujita Health University, Toyoake, Japan
| | - Mieczyslaw Pokorski
- Institute of Health Sciences, University of Opole, Opole, Poland.,Faculty of Health Sciences, The Jan Dlugosz University in Czestochowa, Czestochowa, Poland
| | - Yosuke Kono
- Clinical Research Center, Murayama Medical Center, Musashimurayama, Japan.,Department of Pediatrics, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Masashi Yoshizawa
- Clinical Research Center, Murayama Medical Center, Musashimurayama, Japan.,Department of Pediatrics, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Yohei Hasebe
- Clinical Research Center, Murayama Medical Center, Musashimurayama, Japan.,Department of Pediatrics, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Akito Nakao
- Laboratory of Molecular Biology, Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - Yasuo Mori
- Laboratory of Molecular Biology, Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - Hiroshi Onimaru
- Department of Physiology, Showa University School of Medicine, Tokyo, Japan
| | - Yasumasa Okada
- Clinical Research Center, Murayama Medical Center, Musashimurayama, Japan
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14
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Yamamoto N, Nakano M, Hayashi H, Hasebe Y, Ueda N, Noda T, Kusano K, Yasuda S. Predictive value of QRS duration normalized to left ventricular volume for responding to cardiac resynchronization therapy in patients with mid-QRS duration enrolled in the multicenter registry. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0401] [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: 11/12/2022] Open
Abstract
Abstract
Background
For cardiac resynchronization therapy (CRT), patients with chronic heart failure (HF) and wide (>150msec) QRS duration (QRSd) received class I/A indication. However, its beneficial effect seemed to be limited for those with mid- (120–150msec) QRSd. Recent studies demonstrated that QRSd normalized to left ventricular end-diastolic volume (QRSd/ LVEDV) improved prediction of clinical outcome in patients with CRT. Therefore, we sought to investigate predictive value of QRSd/LVEDV for responding to CRT in patients with mid-QRSd.
Methods
This was retrospective multi-center observational cohort study. A total 506 consecutive patients who underwent CRT implantation in Tohoku University Hospital and National Cerebral and Cardiovascular Center were evaluated. Exclusion criteria were QRSd less than 120ms, upgrade procedures from other implanted non-CRT devices and bradycardia requiring pacing. We evaluated clinical variables, data of electrocardiogram and transthoracic echocardiography at baseline and 6 months after CRT implantation. Primary endpoint was a HF hospitalization after CRT implantation. Distribution of free from HF hospitalization during follow-up was calculated using Kaplan-Meier curves, and the effects of covariate on the time to endpoint were investigated using a Cox proportional hazards model.
Results
After 199 patients were excluded based on exclusion criterion, remaining 307 patients were included for the analysis. Mean age was 62±14 [SD] years, and 238 (77%) were male. Mean LVEF and LVEDV were 25±9% and 234±82ml, respectively, and 24% of patients had ischemic etiology of HF. During the median 948 days of follow-up, CRT patients with mid QRSd (n=126; 136±10msec), as compared with those with wide QRSd (n=181; 174±17msec), tended to have higher incidence of HF hospitalization (Wilcoxon p=0.03). Multivariate analysis showed that QRSd and QRSd/LVEDV were significant predictors for HF hospitalization in CRT patients with mid QRSd, and cut-off values (137msec of QRSd and 0.65 of QRSd/LVEDV), which was calculated by receiver operative curve analysis, was used for risk stratification. QRSd<137msec was significant negative predictors for HF hospitalization (p=0.005), and Mid-QRSd patients with QRSd≥137msec demonstrated equivalent clinical outcome with those with wide QRSd. Moreover, patients with QRSd/LVEDV≥0.65 tended to have lower incidence of HF hospitalization as compared with those without it among patients with QRSd<137msec (n=64, Figure).
Conclusion
The present study demonstrates that QRSd normalized to left ventricular end-diastolic volume (QRSd/ LVEDV) could be clinical value in predicting outcome in CRT patients with mid-QRSd. These findings indicate normalized QRSd reflects myocardial conduction properties and contribute to risk stratification.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- N Yamamoto
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - M Nakano
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - H Hayashi
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Y Hasebe
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - N Ueda
- National Cerebral & Cardiovascular Center, Suita, Japan
| | - T Noda
- National Cerebral & Cardiovascular Center, Suita, Japan
| | - K Kusano
- National Cerebral & Cardiovascular Center, Suita, Japan
| | - S Yasuda
- Tohoku University Graduate School of Medicine, Sendai, Japan
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15
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Watanabe H, Kise H, Toda T, Kono Y, Hasebe Y, Yoshizawa M, Sunaga Y, Shimizu T, Kaga S, Hamasaki M, Funayama S, Morisaka H, Motosugi U, Onishi H. Direct Reverse Flow From the Left to Right Pulmonary Arteries in Tetralogy of Fallot With Absent Pulmonary Valve, Evaluated by 4D Flow Magnetic Resonance Imaging. Circ J 2021; 85:1402. [PMID: 34011826 DOI: 10.1253/circj.cj-21-0199] [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] [Indexed: 11/09/2022]
Affiliation(s)
| | - Hiroaki Kise
- Pediatric Heart Disease and Adult Congenital Heart Disease Center, Showa University Hospital
| | - Takako Toda
- Department of Pediatrics, University of Yamanashi
| | - Yosuke Kono
- Department of Pediatrics, University of Yamanashi
| | - Yohei Hasebe
- Department of Pediatrics, University of Yamanashi
| | | | - Yuto Sunaga
- Department of Pediatrics, University of Yamanashi
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16
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Fukushi I, Takeda K, Pokorski M, Kono Y, Yoshizawa M, Hasebe Y, Nakao A, Mori Y, Onimaru H, Okada Y. Astrocytes mediate the post‐hypoxic persistent respiratory augmentation. FASEB J 2021. [DOI: 10.1096/fasebj.2021.35.s1.04606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Isato Fukushi
- Uekusa Gakuen UniversityChiba
- Clinical Research CenterUekusa Gakuen UniversityChiba
| | - Kotaro Takeda
- Clinical Research CenterMurayama Medical CenterMusashimurayama
- Faculty of RehabilitationSchool of HealthcareMurayama Medical CenterMusashimurayama
| | - Mieczyslaw Pokorski
- Faculty of Health SciencesThe Jan Dlugosz University in CzestochowaCzestochowa
- Institute of Health SciencesThe Jan Dlugosz University in CzestochowaCzestochowa
| | - Yosuke Kono
- Clinical Research CenterMurayama Medical CenterMusashimurayama
- Department of Pediatrics, Faculty of MedicineMurayama Medical CenterMusashimurayama
| | - Masashi Yoshizawa
- Clinical Research CenterMurayama Medical CenterMusashimurayama
- Department of Pediatrics, Faculty of MedicineMurayama Medical CenterMusashimurayama
| | - Yohei Hasebe
- Clinical Research CenterMurayama Medical CenterMusashimurayama
- Department of Pediatrics, Faculty of MedicineMurayama Medical CenterMusashimurayama
| | - Akito Nakao
- Laboratory of Molecular BiologyDepartment of Synthetic Chemistry and Biological ChemistryGraduate School of EngineeringKyoto UniversityKyoto
| | - Yasuo Mori
- Laboratory of Molecular BiologyDepartment of Synthetic Chemistry and Biological ChemistryGraduate School of EngineeringKyoto UniversityKyoto
| | - Hiroshi Onimaru
- Department of PhysiologyShowa University School of MedicineTokyo
| | - Yasumasa Okada
- Clinical Research CenterMurayama Medical CenterMusashimurayama
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17
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Shinohara T, Hasebe Y, Watanabe D, Numano F, Saito T, Koizumi K, Nemoto A, Tandou T, Oyama T, Oyachi N, Hoshiai M, Naito A. Giant Pulmonary Bulla Underlying Bronchopulmonary Dysplasia in a Very Low-birth-weight Infant: a Case Report.. [DOI: 10.21203/rs.3.rs-378547/v1] [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] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
Abstract
Background: Acquired cystic lung disease is a serious respiratory complication of bronchopulmonary dysplasia in premature infants. Most cases of acquired cystic lung disease underlying bronchopulmonary dysplasia involve pulmonary interstitial emphysema. Although this is a reversible condition, there are a few instances where surgery might be necessary. An accurate diagnosis is important to decide the therapeutic strategy for acquired cystic lung disease. Here, we report a rare case of a giant pulmonary bulla in an infant treated with bullectomy. Case presentation: A male infant born at 23 weeks of gestation with a birth weight of 524 g was initially diagnosed with respiratory distress syndrome. During mechanical ventilatory support, he presented with recurrent pneumothorax and a gradually expanding pulmonary cyst in the right lung. Chest CT at 5 months of age revealed a large cyst located in the subpleural area adjacent to the multiple cystic air spaces. These findings are consistent with the diagnosis of giant pulmonary bulla with pulmonary interstitial emphysema underlying bronchopulmonary dysplasia . At 9 months of age, the giant pulmonary bulla expanded further due to acute bronchitis for which he developed respiratory failure and obstructive shock. This warranted a bullectomy for the giant pulmonary bulla. After the operation, the unresected pulmonary interstitial emphysema lesion did not expand further. He is currently three years old and has no respiratory problems. Conclusions: This case demonstrated that chest CT is useful for providing valuable anatomical information necessary in deciding the treatment strategy for acquired cystic lung disease in infants.
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Affiliation(s)
- Tamao Shinohara
- Yamanashi Prefecture Central Hospital: Yamanashi Kenritsu Chuo Byoin
| | - Yohei Hasebe
- University of Yamanashi Hospital: Yamanashi Daigaku Igakubu Fuzoku Byoin
| | - Daisuke Watanabe
- Yamanashi Prefecture Central Hospital: Yamanashi Kenritsu Chuo Byoin
| | - Fuminori Numano
- Yamanashi Prefecture Central Hospital: Yamanashi Kenritsu Chuo Byoin
| | - Tomohiro Saito
- Yamanashi Prefecture Central Hospital: Yamanashi Kenritsu Chuo Byoin
| | - Keiichi Koizumi
- Yamanashi Prefecture Central Hospital: Yamanashi Kenritsu Chuo Byoin
| | - Atsushi Nemoto
- Yamanashi Prefecture Central Hospital: Yamanashi Kenritsu Chuo Byoin
| | - Tomoko Tandou
- Yamanashi Prefecture Central Hospital: Yamanashi Kenritsu Chuo Byoin
| | - Toshio Oyama
- Yamanashi Prefecture Central Hospital: Yamanashi Kenritsu Chuo Byoin
| | - Noboru Oyachi
- Yamanashi Prefecture Central Hospital: Yamanashi Kenritsu Chuo Byoin
| | - Minako Hoshiai
- Yamanashi Prefecture Central Hospital: Yamanashi Kenritsu Chuo Byoin
| | - Atsushi Naito
- Yamanashi Prefecture Central Hospital: Yamanashi Kenritsu Chuo Byoin
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18
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Kono Y, Yokota S, Fukushi I, Arima Y, Onimaru H, Okazaki S, Takeda K, Yazawa I, Yoshizawa M, Hasebe Y, Koizumi K, Pokorski M, Toda T, Sugita K, Okada Y. Structural and functional connectivity from the dorsomedial hypothalamus to the ventral medulla as a chronological amplifier of sympathetic outflow. Sci Rep 2020; 10:13325. [PMID: 32770006 PMCID: PMC7414200 DOI: 10.1038/s41598-020-70234-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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] [Received: 04/26/2020] [Accepted: 07/27/2020] [Indexed: 12/15/2022] Open
Abstract
Psychological stress activates the hypothalamus, augments the sympathetic nervous output, and elevates blood pressure via excitation of the ventral medullary cardiovascular regions. However, anatomical and functional connectivity from the hypothalamus to the ventral medullary cardiovascular regions has not been fully elucidated. We investigated this issue by tract-tracing and functional imaging in rats. Retrograde tracing revealed the rostral ventrolateral medulla was innervated by neurons in the ipsilateral dorsomedial hypothalamus (DMH). Anterograde tracing showed DMH neurons projected to the ventral medullary cardiovascular regions with axon terminals in contiguity with tyrosine hydroxylase-immunoreactive neurons. By voltage-sensitive dye imaging, dynamics of ventral medullary activation evoked by electrical stimulation of the DMH were analyzed in the diencephalon-lower brainstem-spinal cord preparation of rats. Although the activation of the ventral medulla induced by single pulse stimulation of the DMH was brief, tetanic stimulation caused activation of the DMH sustained into the post-stimulus phase, resulting in delayed recovery. We suggest that prolonged excitation of the DMH, which is triggered by tetanic electrical stimulation and could also be triggered by psychological stress in a real life, induces further prolonged excitation of the medullary cardiovascular networks, and could contribute to the pathological elevation of blood pressure. The connectivity from the DMH to the medullary cardiovascular networks serves as a chronological amplifier of stress-induced sympathetic excitation. This notion will be the anatomical and pathophysiological basis to understand the mechanisms of stress-induced sustained augmentation of sympathetic activity.
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Affiliation(s)
- Yosuke Kono
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, 409-3898, Japan.,Clinical Research Center, Murayama Medical Center, 2-37-1 Gakuen, Musashimurayama, Tokyo, 208-0011, Japan
| | - Shigefumi Yokota
- Department of Anatomy and Morphological Neuroscience, Shimane University School of Medicine, Izumo, Shimane, 693-8501, Japan
| | - Isato Fukushi
- Clinical Research Center, Murayama Medical Center, 2-37-1 Gakuen, Musashimurayama, Tokyo, 208-0011, Japan.,Faculty of Health Sciences, Uekusa Gakuen University, Chiba, 264-0007, Japan
| | - Yosuke Arima
- Department of Anatomy and Morphological Neuroscience, Shimane University School of Medicine, Izumo, Shimane, 693-8501, Japan
| | - Hiroshi Onimaru
- Department of Physiology, Showa University School of Medicine, Shinagawa, Tokyo, 142-8555, Japan
| | - Shuntaro Okazaki
- Faculty of Human Sciences, Waseda University, Tokorozawa, Saitama, 359-1192, Japan
| | - Kotaro Takeda
- Faculty of Rehabilitation, School of Healthcare, Fujita Health University, Toyoake, Aichi, 470-1192, Japan
| | - Itaru Yazawa
- Global Research Center for Innovative Life Science, Hoshi University, Shinagawa, Tokyo, 142-8501, Japan
| | - Masashi Yoshizawa
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, 409-3898, Japan.,Clinical Research Center, Murayama Medical Center, 2-37-1 Gakuen, Musashimurayama, Tokyo, 208-0011, Japan
| | - Yohei Hasebe
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, 409-3898, Japan.,Clinical Research Center, Murayama Medical Center, 2-37-1 Gakuen, Musashimurayama, Tokyo, 208-0011, Japan
| | - Keiichi Koizumi
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, 409-3898, Japan
| | | | - Takako Toda
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, 409-3898, Japan
| | - Kanji Sugita
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, 409-3898, Japan
| | - Yasumasa Okada
- Clinical Research Center, Murayama Medical Center, 2-37-1 Gakuen, Musashimurayama, Tokyo, 208-0011, Japan.
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Yoshizawa M, Fukushi I, Takeda K, Kono Y, Hasebe Y, Koizumi K, Toda T, Okada Y. Microglial Involvement in Stress‐induced Prolonged Sympathetic Nervous Excitation in Rats. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.02865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - Kotaro Takeda
- Murayama medical center
- School of Health Sciences Fujita Health University
| | - Yousuke Kono
- Faculty of medicine University of Yamanashi
- Murayama medical center
| | - Yohei Hasebe
- Faculty of medicine University of Yamanashi
- Murayama medical center
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20
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Okada Y, Yoshizawa M, Fukushi I, Takeda K, Kono Y, Hasebe Y, Koizumi K, Toda T. Role of Microglia in Ventilatory and Blood Pressure Responses to Acute Hypoxia. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.02871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | | | - Kotaro Takeda
- Murayama Medical Center
- School of Healthcare Fujita Health University
| | - Yosuke Kono
- Murayama Medical Center
- Faculty of Medicine University of Yamanashi
| | - Yohei Hasebe
- Murayama Medical Center
- Faculty of Medicine University of Yamanashi
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21
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Koizumi K, Hoshiai M, Moriguchi T, Katsumata N, Toda T, Kise H, Hasebe Y, Kono Y, Sunaga Y, Yoshizawa M, Watanabe A, Harii N, Goto J, Kagami K, Abe M, Matsuda K, Sugita K. Plasma Exchange Downregulates Activated Monocytes and Restores Regulatory T Cells in Kawasaki Disease. Ther Apher Dial 2018; 23:92-98. [PMID: 30239141 DOI: 10.1111/1744-9987.12754] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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: 03/10/2018] [Revised: 07/01/2018] [Accepted: 08/17/2018] [Indexed: 01/10/2023]
Abstract
In Kawasaki disease (KD), the effect of plasma exchange (PE) on immune cells has not been fully elucidated. Therefore, we examined the changes in the number of CD14+ CD16+ activated monocytes, regulatory T (Treg ), and T-helper type 17 (Th17) cells in KD patients treated with PE. The percentage of total monocytes and subclasses of lymphocytes, including CD4+ and CD8+ T cells, and CD19+ B cells, showed no significant difference before and after PE. However, the percentage of CD14+ CD16+ monocytes in total leukocytes decreased significantly after PE (1.1% ± 1.5% vs. 2.1% ± 2.3%, P < 0.05). Furthermore, while the percentage of Th17 cells in CD4+ T cells did not change, the percentage of Treg cells in CD4+ T cells increased significantly after PE (11.1% ± 5.1% vs. 8.0% ± 4.4%, P < 0.05). Therefore, PE downregulates activated monocytes and upregulates Treg cells toward normal levels and thus attenuates inflammation in KD.
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Affiliation(s)
- Keiichi Koizumi
- Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Minako Hoshiai
- Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Takeshi Moriguchi
- Department of Emergency and Critical Care Medicine, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Nobuyuki Katsumata
- Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Takako Toda
- Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Hiroaki Kise
- Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Yohei Hasebe
- Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Yosuke Kono
- Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Yuto Sunaga
- Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Masashi Yoshizawa
- Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Atsushi Watanabe
- Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Norikazu Harii
- Department of Emergency and Critical Care Medicine, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Junko Goto
- Department of Emergency and Critical Care Medicine, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Keiko Kagami
- Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Masako Abe
- Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Kenichi Matsuda
- Department of Emergency and Critical Care Medicine, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Kanji Sugita
- Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
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22
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Koizumi K, Hoshiai M, Katsumata N, Toda T, Kise H, Hasebe Y, Kono Y, Sunaga Y, Yoshizawa M, Watanabe A, Kagami K, Abe M, Sugita K. Infliximab regulates monocytes and regulatory T cells in Kawasaki disease. Pediatr Int 2018. [PMID: 29543362 DOI: 10.1111/ped.13555] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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: 12/28/2022]
Abstract
BACKGROUND The effect of infliximab (IFX) on immune cells has not been fully reported in Kawasaki disease (KD). To investigate the mechanism of IFX in KD, we examined changes in the abundance of CD14+ CD16+ activated monocytes, regulatory T cells (Treg ) cells, and T-helper type 17 (Th17) cells following treatment with IFX. METHODS We collected peripheral blood from patients with i.v. immunoglobulin (IVIG)-resistant KD and analyzed absolute CD14+ CD16+ monocyte, Treg (CD4+ CD25+ FOXP3+ ) and Th17 cell (CD4+ IL-17A+ ) counts on flow cytometry. We also measured changes in serum soluble interleukin (IL)-2 receptor (IL-2R), IL-6, and tumor necrosis factor (TNF)-α on enzyme-linked immunosorbent assay. RESULTS Treg cells and Th17 cells significantly increased after IFX treatment compared with baseline (126 ± 85 cells/μL vs 62 ± 53 cells/μL, P < 0.01; 100 ± 111 cells/μL vs 28 ± 27 cells/μL, P < 0.05, respectively). In contrast, in a subgroup of patients with CD14+ CD16+ monocytes above the normal range before IFX, the CD14+ CD16+ monocytes significantly decreased following IFX treatment (72 ± 51 cells/μL vs 242 ± 156 cells/μL, P < 0.05).. Serum TNF-α did not change, but soluble IL-2R and IL-6 decreased after IFX treatment. CONCLUSION IFX could downregulate activated monocytes and upregulate Treg cells towards the normal range. IFX treatment thus contributes to the process of attenuating inflammation in KD.
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Affiliation(s)
- Keiichi Koizumi
- Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Minako Hoshiai
- Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Nobuyuki Katsumata
- Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Takako Toda
- Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Hiroaki Kise
- Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Yohei Hasebe
- Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Yosuke Kono
- Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Yuto Sunaga
- Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Masashi Yoshizawa
- Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Atsushi Watanabe
- Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Keiko Kagami
- Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Masako Abe
- Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Kanji Sugita
- Department of Pediatrics, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
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23
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Koizumi K, Hosiai M, Katsumata N, Toda T, Kise H, Hasebe Y, Kono Y, Sunaga Y, Yoshizawa M, Watanabe A, Moriguchi T, Matsuda K, Sugita K. P3794Plasma exchange regulates CD14+CD16+ activated monocytes and CD4+CD25+FOXP3+ regulatory T cells in Kawasaki disease. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3794] [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] [Indexed: 11/12/2022] Open
Affiliation(s)
- K Koizumi
- Faculty of Medicine, University of Yamanashi, Department of Pediatrics, Chuo, Yamanashi, Japan
| | - M Hosiai
- Faculty of Medicine, University of Yamanashi, Department of Pediatrics, Chuo, Yamanashi, Japan
| | - N Katsumata
- Faculty of Medicine, University of Yamanashi, Department of Pediatrics, Chuo, Yamanashi, Japan
| | - T Toda
- Faculty of Medicine, University of Yamanashi, Department of Pediatrics, Chuo, Yamanashi, Japan
| | - H Kise
- Faculty of Medicine, University of Yamanashi, Department of Pediatrics, Chuo, Yamanashi, Japan
| | - Y Hasebe
- Faculty of Medicine, University of Yamanashi, Department of Pediatrics, Chuo, Yamanashi, Japan
| | - Y Kono
- Faculty of Medicine, University of Yamanashi, Department of Pediatrics, Chuo, Yamanashi, Japan
| | - Y Sunaga
- Faculty of Medicine, University of Yamanashi, Department of Pediatrics, Chuo, Yamanashi, Japan
| | - M Yoshizawa
- Faculty of Medicine, University of Yamanashi, Department of Pediatrics, Chuo, Yamanashi, Japan
| | - A Watanabe
- Faculty of Medicine, University of Yamanashi, Department of Pediatrics, Chuo, Yamanashi, Japan
| | - T Moriguchi
- Faculty of Medicine, University of Yamanashi, Department of Emergency and Critical Care Medicine, Chuo, Yamanashi, Japan
| | - K Matsuda
- Faculty of Medicine, University of Yamanashi, Department of Emergency and Critical Care Medicine, Chuo, Yamanashi, Japan
| | - K Sugita
- Faculty of Medicine, University of Yamanashi, Department of Pediatrics, Chuo, Yamanashi, Japan
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24
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Kono K, Okada Y, Onimaru H, Yokota S, Arima Y, Fukushi I, Koizumi K, Hasebe Y, Yoshizawa M, Kise H, Hoshiai M, Sugita K, Toda T. P1859Functional and anatomical connectivity from the dorsomedial hypothalamus to the ventral medullary cardiovascular regions: possible neural substrate mediating stress-induced sympathoexcitation. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1859] [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] [Indexed: 11/12/2022] Open
Affiliation(s)
- K Kono
- University of Yamanashi, Pediatrics, Yamanashi, Japan
| | - Y Okada
- National Hospital Organization Murayama Medical Center, Clinical Research Center, Tokyo, Japan
| | - H Onimaru
- Showa University, Department of Physiology, Tokyo, Japan
| | - S Yokota
- Shimane University School of Medicine, Department of Anatomy and Morphological Neuroscience, Shimane, Japan
| | - Y Arima
- Shimane University School of Medicine, Department of Anatomy and Morphological Neuroscience, Shimane, Japan
| | - I Fukushi
- National Hospital Organization Murayama Medical Center, Clinical Research Center, Tokyo, Japan
| | - K Koizumi
- University of Yamanashi, Pediatrics, Yamanashi, Japan
| | - Y Hasebe
- University of Yamanashi, Pediatrics, Yamanashi, Japan
| | - M Yoshizawa
- University of Yamanashi, Pediatrics, Yamanashi, Japan
| | - H Kise
- University of Yamanashi, Pediatrics, Yamanashi, Japan
| | - M Hoshiai
- University of Yamanashi, Pediatrics, Yamanashi, Japan
| | - K Sugita
- University of Yamanashi, Pediatrics, Yamanashi, Japan
| | - T Toda
- University of Yamanashi, Pediatrics, Yamanashi, Japan
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25
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Kimura Y, Nakano M, Sakata Y, Nochioka K, Hasebe Y, Abe R, Chiba T, Fukasawa K, Oikawa T, Kasahara S, Miki K, Sato M, Shiroto T, Miyata S, Shimokawa H. 4376Clinical impacts of wide ORS morphologies on deterioration of left ventricular ejection fraction and fatal arrhythmias in patients with relatively preserved left ventricular ejection function. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.4376] [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] [Indexed: 11/13/2022] Open
Affiliation(s)
- Y Kimura
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - M Nakano
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - Y Sakata
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - K Nochioka
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - Y Hasebe
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - R Abe
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - T Chiba
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - K Fukasawa
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - T Oikawa
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - S Kasahara
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - K Miki
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - M Sato
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - T Shiroto
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - S Miyata
- Tohoku University Graduate School of Medicine, Department of Evidence-based Cardiovascular Medicine, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
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Hasebe Y, Yokota S, Takeda K, Sugama S, Kono Y, Koizumi K, Fukushi I, Hoshiai M, Kakinuma Y, Pokorski M, Horiuchi J, Sugita K, Okada Y. P4780Activation of astrocytes is requred for the persistence of post-stress blood pressure elevation. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4780] [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] [Indexed: 11/14/2022] Open
Affiliation(s)
- Y Hasebe
- University of Yamanashi, Department of Pediatrics, Graduate School of Medicine, Yamanashi, Japan
| | - S Yokota
- Shimane University, Anatomy and Morphological Neuroscience, Izumo, Japan
| | - K Takeda
- Fujita Health University, Faculty of Rehabilitation, School of Health Sciences, Mie, Japan
| | - S Sugama
- Nippon Medical School, Department of Physiology, Tokyo, Japan
| | - Y Kono
- University of Yamanashi, Department of Pediatrics, Graduate School of Medicine, Yamanashi, Japan
| | - K Koizumi
- University of Yamanashi, Department of Pediatrics, Graduate School of Medicine, Yamanashi, Japan
| | - I Fukushi
- National Hospital Organization Murayama Medical Center, Clinical Research Center, Musashimurayama, Tokyo, Japan
| | - M Hoshiai
- University of Yamanashi, Department of Pediatrics, Graduate School of Medicine, Yamanashi, Japan
| | - Y Kakinuma
- Nippon Medical School, Department of Physiology, Tokyo, Japan
| | - M Pokorski
- Opole Medical School, Faculty of Physiotherapy, Opole, Poland
| | - J Horiuchi
- Toyo University, Department of Biomedical Engineering, Graduate School of Science & Engineering, Saitama, Japan
| | - K Sugita
- University of Yamanashi, Department of Pediatrics, Graduate School of Medicine, Yamanashi, Japan
| | - Y Okada
- National Hospital Organization Murayama Medical Center, Clinical Research Center, Musashimurayama, Tokyo, Japan
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Suzuki K, Akasaka K, Otsudo T, Mizoguchi Y, Ono K, Tamura A, Hattori H, Hasebe Y, Takei K, Yamamoto M, Hall T. Functional movement screen score and baseball performance in Japanese high school baseball players after corrective exercises. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.1084] [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: 11/28/2022]
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Ono K, Akasaka K, Otsudo T, Mizoguchi Y, Suzuki K, Tamura A, Hattori H, Hasebe Y, Takei K, Yamamoto M, Hall T. Effects of neuromuscular training on ankle sprain in junior high school basketball players. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.1075] [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: 11/16/2022]
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Akasaka K, Hasebe Y, Otsudo T, Hattori H, Tamura A. The effect of nordic hamstring exercise on preventing hamstrings injury on hamstring injury rate and time-loss injury rate in high school soccer players in Japan. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.1082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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30
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Koizumi K, Hoshiai M, Moriguchi T, Toda T, Katsumata N, Kise H, Hasebe Y, Kouno Y, Goto J, Harii N, Matsuda K, Kaga S, Suzuki S, Sugita K. Correction to: Outcomes of plasma exchange for severe dilated cardiomyopathy in children. Heart Vessels 2018; 33:1584-1585. [PMID: 29671045 DOI: 10.1007/s00380-018-1163-z] [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: 11/30/2022]
Abstract
In original publication of the article, some of the co-author's names were not included. The correct author group is published in this article.
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Affiliation(s)
- Keiichi Koizumi
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3848, Japan.
| | - Minako Hoshiai
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3848, Japan
| | - Takeshi Moriguchi
- Department of Emergency and Critical Care Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Takako Toda
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3848, Japan
| | - Nobuyuki Katsumata
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3848, Japan
| | - Hiroaki Kise
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3848, Japan
| | - Yohei Hasebe
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3848, Japan
| | - Yousuke Kouno
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3848, Japan
| | - Junko Goto
- Department of Emergency and Critical Care Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Norikazu Harii
- Department of Emergency and Critical Care Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Kenichi Matsuda
- Department of Emergency and Critical Care Medicine, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Shigeaki Kaga
- Department of Surgery, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Shoji Suzuki
- Department of Surgery, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Kanji Sugita
- Department of Pediatrics, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3848, Japan
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Hasebe Y, Akasaka K, Otsudo T, Takei K, Yamamoto M. Injury and disorder prevalence and current injury prevention methods in high school soccer players in Japan. Phys Ther Sport 2017. [DOI: 10.1016/j.ptsp.2017.08.007] [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: 11/17/2022]
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32
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Fukushi I, Takeda K, Yokota S, Hasebe Y, Sato Y, Pokorski M, Horiuchi J, Okada Y. Effects of arundic acid, an astrocytic modulator, on the cerebral and respiratory functions in severe hypoxia. Respir Physiol Neurobiol 2016; 226:24-9. [DOI: 10.1016/j.resp.2015.11.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 11/12/2015] [Accepted: 11/13/2015] [Indexed: 12/18/2022]
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Koizumi K, Hoshiai M, Toda T, Katsumata N, Kise H, Hasebe Y, Kouno Y, Kaga S, Suzuki S, Sugita K. Outcomes of plasma exchange for severe dilated cardiomyopathy in children. Heart Vessels 2016; 32:61-67. [DOI: 10.1007/s00380-016-0830-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Accepted: 03/25/2016] [Indexed: 12/29/2022]
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Kise H, Suzuki S, Hoshiai M, Toda T, Koizumi K, Hasebe Y, Kono Y, Honda Y, Kaga S, Sugita K. Benefits of Balloon-Dilatable Bilateral Pulmonary Artery Banding in Patients With Hypoplastic Left Heart Syndrome and Other Complex Cardiac Anomalies. J Interv Cardiol 2015; 28:594-9. [PMID: 26643005 DOI: 10.1111/joic.12250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVES The purpose of this study was to evaluate the potential of balloon-dilatable bilateral pulmonary artery banding (b-PAB) and its impact on the configuration of the pulmonary artery (PA). BACKGROUND We have previously used balloon-dilatable b-PAB as first-stage palliation for patients with hypoplastic left heart syndrome (HLHS) and other complex cardiac anomalies. METHODS Two pliable tapes were placed around each branch of the PA and tightened with 7-0 polypropylene sutures in a manner that allowed for the subsequent adjustment of PA diameters. We retrospectively examined the adjustability of PA diameters by balloon dilation and the need for surgical PA angioplasty at later stages. RESULTS From January 2010 to October 2013, we performed b-PAB in 8 patients, including 3 borderline cases between biventricular repair (BVR) and univentricular repair (UVR). The b-PAB procedures were performed at a median age of 6.5 days (range, 2-10 days). Balloon dilations were performed in 10 lesions in 4 patients. All of the procedures were performed safely. Two patients reached definite BVR. The remaining 6 patients underwent open palliative procedures with univentricular physiologies that resulted in 2 deaths unrelated to the initial b-PAB. In all but 1 of the patients, the PA configuration was properly maintained and did not require surgical pulmonary angioplasty. CONCLUSIONS Balloon-dilatable b-PAB can be performed safely and prevents PA distortion at later stages. This technique should be considered for patients with complex cardiac anomalies if uncertainty exists regarding the optimal surgical strategy (BVR or UVR) in early infancy.
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Affiliation(s)
- Hiroaki Kise
- Department of Pediatrics, University of Yamanashi Hospital, Chuo-City, Yamanashi, Japan
| | - Shoji Suzuki
- Department of Surgery, University of Yamanashi Hospital, Chuo-City, Yamanashi, Japan
| | - Minako Hoshiai
- Department of Pediatrics, University of Yamanashi Hospital, Chuo-City, Yamanashi, Japan
| | - Takako Toda
- Department of Pediatrics, University of Yamanashi Hospital, Chuo-City, Yamanashi, Japan
| | - Keiichi Koizumi
- Department of Pediatrics, University of Yamanashi Hospital, Chuo-City, Yamanashi, Japan
| | - Yohei Hasebe
- Department of Pediatrics, University of Yamanashi Hospital, Chuo-City, Yamanashi, Japan
| | - Yosuke Kono
- Department of Pediatrics, University of Yamanashi Hospital, Chuo-City, Yamanashi, Japan
| | - Yoshihiro Honda
- Department of Surgery, University of Yamanashi Hospital, Chuo-City, Yamanashi, Japan
| | - Shigeaki Kaga
- Department of Surgery, University of Yamanashi Hospital, Chuo-City, Yamanashi, Japan
| | - Kanji Sugita
- Department of Pediatrics, University of Yamanashi Hospital, Chuo-City, Yamanashi, Japan
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Harada D, Matsuda K, Moriguchi T, Harii N, Goto J, Yanagisawa M, Sugawara H, Takamino J, Yoshino T, Hasebe Y. Comparison of the efficacy between continuoushemodiafiltration with polymethylmethacrylate (PMMA) membrane hemofilter CH-1.8W® and with pmma membrane dialyzer BK-2.1P® in the treatment of critically ill patients. Intensive Care Med Exp 2015. [PMCID: PMC4798107 DOI: 10.1186/2197-425x-3-s1-a62] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Fukushi I, Takeda K, Hasebe Y, Horiuchi J, Okada Y. Maintenance of ventilation under a hypoxic condition requires activated astrocytes. Auton Neurosci 2015. [DOI: 10.1016/j.autneu.2015.07.046] [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: 11/16/2022]
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Kise H, Miyata A, Tomita H, Fujii T, Fujimoto K, Kiguchi H, Oyama N, Soga T, Hata Y, Hirata M, Itoh A, Ishino K, Hasebe Y, Hoshiai M. Novel curved balloon catheter for dilating postoperative angled lesions associated with congenital heart disease. J Interv Cardiol 2014; 27:408-13. [PMID: 24773256 DOI: 10.1111/joic.12122] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVES This study aimed to analyze the surface stress generated by a novel curved balloon and assess its efficacy for treating angular lesions associated with congenital heart disease. BACKGROUND Obstructions at the anastomosis of aortopulmonary shunts and cavopulmonary connections may occur postoperatively. Catheter interventions are often performed for such lesions; however, acute angulation may cause balloon slippage or inappropriate stress on the vessel wall. METHODS We dilated the curved balloon in a curved vessel model and measured the resultant wall stress and its distribution. Clinical evaluations were performed using this balloon in angled lesions. RESULTS In the curved vessel model, curved balloons generated uniform stress on the lesser and greater curvatures (curved type, lesser/greater = 0.343 MPa/0.327 MPa; P = 0.61), whereas straight balloons caused disproportionate stress (straight type, lesser/greater = 0.358 MPa/0.254 MPa; P = 0.19). However, the difference in average stress was not statistically significant. Furthermore, the stress was uniform along the entire length of the curved balloon, but differed between the mid and end portions of the straight balloon. Curved balloon dilations were performed for 10 lesions in 7 patients. The curved balloon conformed well to the angulated lesion without slipping. The median percent change in the minimal lumen diameter (MLD) was 64% (range, 0-206%). In 5 lesions, MLD increased by ≥50%. Oxygen saturation increased by 5% (0-9%). CONCLUSIONS Although further clinical evaluation is necessary, this novel curved balloon may be a reasonable alternative in angled lesions, providing better conformability and preventing excessive stress to the vessel wall adjacent to the stenosis.
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Affiliation(s)
- Hiroaki Kise
- Cardiovascular Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
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Suzuki S, Kise H, Kaga S, Hoshiai M, Koizumi K, Hasebe Y, Motohashi S, Matsumoto M. Hybrid procedures for an infant with hypoplastic left heart syndrome with intact atrial septum. Gen Thorac Cardiovasc Surg 2013; 63:472-5. [DOI: 10.1007/s11748-013-0304-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Accepted: 07/27/2013] [Indexed: 10/26/2022]
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Nishimiya K, Matsumoto Y, Takahashi J, Shindo T, Hanawa K, Hasebe Y, Tsuburaya R, Shiroto T, Ito K, Shimokawa H. Essential role of polymer-coating in the pathogenesis of coronary hyperconstricting responses after drug-eluting stent implantation in pigs in vivo. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.p1234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Abstract
OBJECTIVE This study sought to determine the predictors of discontinuation of care for the disabled elderly at home using multivariate regression analysis. METHODS In January to February 2005, using a self-administered questionnaire, data were collected from 193 caregivers of frail elderly listed on a roster for utilization of day service or short stay service from two Home Visit Nursing Care Stations. Family caregivers were defined as co-resident family members who provided a minimum of 1 h of daily care for at least 3 months. Multiple stepwise logistic regression analysis was performed to detect predictors of a discontinuation for the disabled elderly at home. RESULTS The mean age of caregivers was around 59.0 years, accounting for about 80% of the women among caregivers. Of those caregivers, the proportion of desire to institutionalization (high DI) (56.8%) was higher than that of desire to care at home (low DI) (43.2%). Among the following three factors selected by multivariate stepwise logistic regression analysis, the strength of the relationship was stronger in frequent mood swings and irritability as carerecipient characteristic (adjusted OR = 5.93; 95% CI, 2.09-16.8) than in no advanced or skilled care (adjusted OR = 3.13; 95% CI, 1.41-7.14) and a high caregiver burden (adjusted OR = 1.12; 95% CI, 1.03-1.23) as caregiver's one. CONCLUSIONS Our results suggest that the carerecipients' psychological characteristics may be more strongly related to the decision to continue care for disabled elderly at home than that of the caregivers'.
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Affiliation(s)
- K Okamoto
- Department of Epidemiology, Aichi Prefectural College of Nursing & Health, Nagoya, 463-8502, Japan.
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Ando Y, Mitsugi N, Yano K, Hasebe Y, Karube I. Initial fermentation of sea sludge using aerobic and thermophilic microorganisms in a mangrove soil. Bioresour Technol 2001; 80:83-85. [PMID: 11554605 DOI: 10.1016/s0960-8524(01)00075-x] [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] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
As sea sludge has the potential to cause eutrophication and red tide resulting in the death of shellfish and offensive odors, an effective method to treat it is needed. It was found that adding soil taken from a mangrove swamp to sea sludge promoted an initial fermentation of the sludge constituents. The result suggested that certain microorganisms that were thought to inhabit the sub-tropical mangrove soil had the potential to play a significant role in the fermentation and that the use of the microorganisms in the mangrove soil might be useful for composting sea sludge.
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Affiliation(s)
- Y Ando
- Research Center for Advanced Science and Technology, University of Tokyo, Japan
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Nakazaki H, Watanabe M, Hasebe Y, Takita W, Ooshiro M, Seo A, Kurihara A, Kobayashi K, Teramoto T, Hirano K. [Percutaneous cryosurgery for liver tumors]. Gan To Kagaku Ryoho 2001; 28:1599-602. [PMID: 11707989] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
A new cryoprobe developed in our department makes it possible to perform percutaneous cryoablation for small liver tumors. This cryoprobe is placed into each lesion using an ultrasonic guidance technique. In this study there were 10 patients with hepatocellular carcinoma and 5 patients with liver metastases from colorectal carcinoma. In 6 cases the tumor size was below 2 cm, in 6 cases between 2 and 3 cm, and in 3 cases over 3 cm. Using a cryoprobe of 3 mm in diameter, each lesion was frozen using liquid nitrogen for 15 or 20 minutes then thawed for 10 minutes, and repeated. The ice ball was found to enlarge to 3 cm in 20 minutes and 5 cm in 60 minutes experimentally. Six cases were CR, 5 PR, 2 NC and 2 PD. After cryoablation, liver function did not change and there were no complications. However, as the size of the ice ball was small (about 3 cm), this method was insufficiently effective in some cases. Percutaneous cryoablation using this probe should be performed for tumors smaller than 3 cm.
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Affiliation(s)
- H Nakazaki
- First Dept. of Surgery, Toho University School of Medicine
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Abstract
We have investigated the effects of inhaling odors of preference on physiological responses to physical exercise in college students. Rhythmic handgrip, maintaining a mercurial pressure by repetitive compression, increased blood pressure. In the participants exercised with inhaling odors of their choice, such as rose, jasmine and lavender, the increase in diastolic blood pressure during exercise was reduced by 24%. In contrast, the blood pressure increase during static handgrip, maintaining the power 30-40% of maximum, was not affected by the existence of favorite odors. Since the blood pressure increase during static handgrip is a lower brainstem reflex, the present result shows that the inhalation of favorite odors suppresses the muscle sympathetic vasoconstrictor activity and attenuates the blood pressure increase by affecting the central nervous system higher than the midbrain.
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Affiliation(s)
- M Nagai
- Department of Physiology, Yamanashi Institute of Environmental Sciences, Fujiyoshida, Japan.
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Hasebe Y, Thomson LR, Dorey CK. Pentoxifylline inhibition of vasculogenesis in the neonatal rat retina. Invest Ophthalmol Vis Sci 2000; 41:2774-8. [PMID: 10937597] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
Abstract
PURPOSE The zeta isozyme of protein kinase C (PKC) is essential for activation of the transcription factor nuclear factor (NF)kappaB and transcription of vascular endothelial growth factor (VEGF). This study examined the antiangiogenic potential of an existing drug, pentoxifylline (PTX), which inhibits PKC-dependent activation of NFkappaB and is reported to prevent hypoxia-induced expression of VEGF. METHODS Neovascularization was induced by maintaining neonatal rats for 10 full days in 80% oxygen, interrupted daily by 30 minutes in room air followed by a progressive return to 80% oxygen. On experimental day 11, they were placed in room air until they were killed on day 17. Daily intraperitoneal injections of PTX in saline (25 or 75 mg/kg per day), or saline alone, were administered from day 6 through day 16. Retinal neovascularization was scored, and avascular areas (AVAs) were measured in ADPase stained retinas. RESULTS PTX inhibited radial extension of retinal vessels, causing increases in AVA of 65% (P < 0.01) and 33% (P < 0.15) at the lower and upper doses, respectively. A significant increase in mean neovascular score was seen at the lower dose (P < 0.0001), but analysis of variance indicated that neovascularization was strongly and positively influenced by the AVA (P < 0.0001) and only weakly stimulated by PTX (P < 0.05). CONCLUSIONS Systemic PTX significantly inhibited VEGF-mediated retinal vasculogenesis, but was not effective in reducing neovascularization in the oxygen-exposed neonatal rat.
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Affiliation(s)
- Y Hasebe
- Schepens Eye Research Institute and Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, USA
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Naganobu K, Hasebe Y, Uchiyama Y, Hagio M, Ogawa H. A comparison of distilled water and normal saline as diluents for endobronchial administration of epinephrine in the dog. Anesth Analg 2000; 91:317-21. [PMID: 10910841 DOI: 10.1097/00000539-200008000-00016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [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
UNLABELLED We compared the effects of distilled water and normal saline as diluents for the endobronchial administration of epinephrine in anesthetized dogs by using a cross-over design. Six dogs received 2 mL of either normal saline or distilled water into the bronchus, and the other solution was administered 1 wk later. Eight dogs received 0.02 mg/kg epinephrine diluted in either distilled water (E + water) or normal saline (E + saline) to a total volume of 2 mL into the bronchus, and the other solution was administered 1 wk later. Normal saline or distilled water without epinephrine did not affect the plasma epinephrine concentration, mean arterial pressure (MAP), and PaO(2). The peak plasma epinephrine concentration was significantly larger after treatment with E + water (26.5 +/- 7.9 ng/mL) than after E + saline (2.1 +/- 0.7 ng/mL). E + water caused an increase in MAP of 91 +/- 24 mm Hg, whereas E + saline did not affect MAP. The maximal decrease in PaO(2) after the administration of E + water (14 +/- 5 mm Hg) was significantly greater than after E + saline (7 +/- 2 mm Hg). In conclusion, distilled water as the diluent for endobronchially administered epinephrine to a total volume of 2 mL allowed better absorption of epinephrine compared with normal saline without a serious detrimental effect on PaO(2). IMPLICATIONS Using a small volume of distilled water as the diluent for endobronchial epinephrine administration significantly increased epinephrine absorption and arterial pressure in comparison with normal saline, without having a serious detrimental effect on PaO(2), in an anesthetized, noncardiopulmonary, resuscitation dog model.
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Affiliation(s)
- K Naganobu
- Department of Veterinary Science, Faculty of Agriculture, Miyazaki University, Japan.
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Mahmud G, Igbal K, Hasebe Y, Nakasa T. Knowledge and practice (KAP) about maternal health and nutrition. Int J Gynaecol Obstet 2000. [DOI: 10.1016/s0020-7292(00)80505-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Matsukawa R, Hatakeda K, Ito S, Numata Y, Nakamachi H, Hasebe Y, Uchiyama S, Notoya M, Dubinsky Z, Karube I. Eicosapentaenoic acid release from the red alga Pachymeniopsis lanceolata by enzymatic degradation. Appl Biochem Biotechnol 1999; 80:141-50. [PMID: 10436916 DOI: 10.1385/abab:80:2:141] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [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: 11/11/2022]
Abstract
Forty-eight species of seaweeds from Japanese waters were screened for the valuable polyunsaturated fatty acids eicosapentaenoic acid (EPA). The eight species that contained the highest levels of these compounds were analyzed in detail. Of all species tested the red alga Pachymeniopsis lanceolata contained the highest EPA concentration, and it was present as both the free and bound forms. EPA constituted 38.7% of total fatty acids, and polar lipids were the main constituent of the total lipids in P. lanceolata. EPA was obtained from the marine algae P. lanceolata by enzymatic hydrolysis of the total lipids extract using phospholipase A2 (PLA2). The release of EPA reached a plateau after 10 min of enzymatic treatment. These results suggest that P. lanceolata is a useful natural source of EPA and that PLA2 treatment is a convenient method for obtaining EPA from the red alga.
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Affiliation(s)
- R Matsukawa
- Research Center for Advanced Science and Technology, University of Tokyo, Japan
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Abstract
The principle of the signal amplification of a uric acid sensor based on dithiothreitol (DTT)-mediated intermediate regeneration of uricase was applied to a flow-injection system with an immobilized uricase reactor and a DTT-containing carrier. Highly sensitive detection for nM to microM order of uric acid was achieved when 10 mM TRIS-HCl buffer (pH 10.0) containing 20 mM DTT was used as a carrier at 0.6 ml min-1 and 37 degrees C. The sensitivity of the uric acid was much improved over a batch method using a uricase membrane-coupling electrode, and the detection limit (ca. peak current 8 nA) of uric acid was found to be down to 3 x 10(-10) M (amplification factor; more than 10,000). This chemically amplified flow-system is very useful for the direct assay of uric acid in highly diluted biological fluids (urine and serum) without complicated pretreatment of the samples, because this sensor has the potential to detect trace amounts (nM to microM) of uric acid in highly diluted body fluids in which the concentration of interfering constituents was decreased to negligible levels. Good correlation was observed between this system and conventional spectrophotometry. The immobilized uricase reactor could be re-used for at least 4 months of repeated analysis without loss of activity and was stable if stored at 4 degrees C in 10 mM TRIS-HCl buffer, pH 9.0.
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Affiliation(s)
- Y Hasebe
- Department of Environmental Engineering, Faculty of Engineering, Saitama Institute of Technology, Japan.
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Abstract
The teleost dorsoventral axis cannot be morphologically distinguished before gastrulation. Previous studies by the current authors have shown that localized dorsalizing activity in the yolk cell (YC) induces the dorsal tissues in the overlying blastoderm. In order to examine whether or not dorsal blastomeres are committed to their dorsal fate before the gastrula stage, a variety of transplant operations were performed in goldfish blastoderms at the mid- to late-blastula stages. When the blastoderm was cut from the YC, rotated horizontally at 180 degrees, and recombined with the YC, the blastoderm frequently developed two axes, indicating that dorsal blastomeres of the blastula had already acquired the ability to differentiate into the organizer in the absence of dorsalizing signals from the YC. This result was further confirmed by experiments using ventralized embryos in which no dorsal structures formed: the axis formation was frequently observed in the normal blastoderm combined with the ventralized YC at the blastula stage. However, the axes formed in the absence of dorsal information from the YC exhibited a lower dorso-anterior index. Furthermore, the dorsal specification was not stably maintained when the dorsal cells were located far from the YC. These results suggest that the inductive and permissive influence of the YC may be required for the blastoderm to undergo full dorsal differentiation.
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Affiliation(s)
- E Yamaha
- Nanae Fish Culture Experimental Station, Faculty of Fisheries, Hokkaido University, Japan
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Takahashi-Nishimura M, Tanabe S, Hasebe Y. Effects of skin surface temperature distribution of thermal manikin on clothing thermal insulation. Appl Human Sci 1997; 16:181-9. [PMID: 9431704 DOI: 10.2114/jpa.16.181] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Effects of the distribution of skin surface temperature were investigated on thermal insulation of clothing for whole and each body part. The experiments were carried out with a thermal manikin in a climatic chamber. The two types of clothing ensemble were measured. The measurement with nude thermal manikin were also conducted. The three variations of skin temperature distribution were set with the thermal manikin. The values of the thermal insulation of nude skin surface (Ia), the total thermal insulation of clothing (It) and the basic thermal insulation of clothing (Icl) were measured with this thermal manikin under each skin temperature distribution. As a result, the values of Ia and It were not affected by skin temperature distributions of the range of typical experimental conditions. However, It is necessary to carefully use the values of the thermal insulation of clothing for the body parts, because these values were more influenced by the skin temperature distribution than those for the whole body.
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Affiliation(s)
- M Takahashi-Nishimura
- Department of Human Environmental Engineering, School of Human Life and Environmental Science, Ochanomizu University
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