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Tocan V, Nakamura-Utsunomiya A, Sonoda Y, Matsuoka W, Mizuguchi S, Muto Y, Hijioka T, Nogami M, Sasaoka D, Nagamatsu F, Oba U, Kawakubo N, Hamada H, Mushimoto Y, Chong PF, Kaku N, Koga Y, Sakai Y, Oda Y, Tajiri T, Ohga S. High-Titer Anti-ZSCAN1 Antibodies in a Toddler Clinically Diagnosed with Apparent Rapid-Onset Obesity with Hypothalamic Dysfunction, Hypoventilation, and Autonomic Dysregulation Syndrome. Int J Mol Sci 2024; 25:2820. [PMID: 38474067 DOI: 10.3390/ijms25052820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 02/24/2024] [Accepted: 02/25/2024] [Indexed: 03/14/2024] Open
Abstract
Severe obesity in young children prompts for a differential diagnosis that includes syndromic conditions. Rapid-Onset Obesity with Hypothalamic Dysfunction, Hypoventilation, and Autonomic Dysregulation (ROHHAD) syndrome is a potentially fatal disorder characterized by rapid-onset obesity associated with hypoventilation, neural crest tumors, and endocrine and behavioral abnormalities. The etiology of ROHHAD syndrome remains to be established, but recent research has been focusing on autoimmunity. We report on a 2-year-old girl with rapid-onset obesity during the first year of life who progressed to hypoventilation and encephalitis in less than four months since the start of accelerated weight gain. The patient had a high titer of anti-ZSCAN1 antibodies (348; reference range < 40), and the increased values did not decline after acute phase treatment. Other encephalitis-related antibodies, such as the anti-NDMA antibody, were not detected. The rapid progression from obesity onset to central hypoventilation with encephalitis warns about the severe consequences of early-onset ROHHAD syndrome. These data indicate that serial measurements of anti-ZSCAN1 antibodies might be useful for the diagnosis and estimation of disease severity. Further research is needed to determine whether it can predict the clinical course of ROHHAD syndrome and whether there is any difference in antibody production between patients with and without tumors.
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Affiliation(s)
- Vlad Tocan
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Akari Nakamura-Utsunomiya
- Department of Genetic Medicine/Pediatrics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8511, Japan
- Department of Pediatrics, Hiroshima City North Medical Center Asa Citizens Hospital, Hiroshima 731-0293, Japan
- Division of Neonatal Screening, National Center for Child Health and Development, Tokyo 157-8535, Japan
| | - Yuri Sonoda
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Wakato Matsuoka
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
- Emergency and Critical Care Center, Kyushu University Hospital, Fukuoka 812-8582, Japan
| | - Soichi Mizuguchi
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
- Emergency and Critical Care Center, Kyushu University Hospital, Fukuoka 812-8582, Japan
| | - Yuichiro Muto
- Department of Pediatrics, Japanese Red Cross Kumamoto Hospital, Kumamoto 861-8520, Japan
| | - Takaaki Hijioka
- Department of Pediatrics, Japanese Red Cross Kumamoto Hospital, Kumamoto 861-8520, Japan
- Department of Pediatrics, Graduate School of Medical Sciences, Kumamoto University, Kumamoto 860-8556, Japan
| | - Masao Nogami
- Department of Pediatrics, Japanese Red Cross Kumamoto Hospital, Kumamoto 861-8520, Japan
| | - Daiki Sasaoka
- Department of Pediatrics, Graduate School of Medical Sciences, Kumamoto University, Kumamoto 860-8556, Japan
| | - Fusa Nagamatsu
- Department of Pediatrics, Graduate School of Medical Sciences, Kumamoto University, Kumamoto 860-8556, Japan
| | - Utako Oba
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Naonori Kawakubo
- Department of Pediatric Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Hiroshi Hamada
- Department of Pediatric Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Yuichi Mushimoto
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Pin Fee Chong
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Noriyuki Kaku
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
- Emergency and Critical Care Center, Kyushu University Hospital, Fukuoka 812-8582, Japan
| | - Yuhki Koga
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Yasunari Sakai
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Yoshinao Oda
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Tatsuro Tajiri
- Department of Pediatric Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Shouichi Ohga
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
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2
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Kyogoku M, Mizuguchi S, Miyasho T, Endo Y, Inata Y, Tachibana K, Fujino Y, Yamashita K, Takeuchi M. Estimating the change in pleural pressure using the change in central venous pressure in various clinical scenarios: a pig model study. Intensive Care Med Exp 2024; 12:4. [PMID: 38224398 PMCID: PMC10789683 DOI: 10.1186/s40635-023-00590-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 12/21/2023] [Indexed: 01/16/2024] Open
Abstract
BACKGROUND We have previously reported a simple correction method for estimating pleural pressure (Ppl) using central venous pressure (CVP). However, it remains unclear whether this method is applicable to patients with varying levels of intravascular volumes and/or chest wall compliance. This study aimed to investigate the accuracy of our method under different conditions of intravascular volume and chest wall compliance. RESULTS Ten anesthetized and paralyzed pigs (43.2 ± 1.8 kg) were mechanically ventilated and subjected to lung injury by saline lung lavage. Each pig was subjected to three different intravascular volumes and two different intraabdominal pressures. For each condition, the changes in the esophageal pressure (ΔPes) and the estimated ΔPpl using ΔCVP (cΔCVP-derived ΔPpl) were compared to the directly measured change in pleural pressure (Δd-Ppl), which was the gold standard estimate in this study. The cΔCVP-derived ΔPpl was calculated as κ × ΔCVP, where "κ" was the ratio of the change in airway pressure to the change in CVP during the occlusion test. The means and standard deviations of the Δd-Ppl, ΔPes, and cΔCVP-derived ΔPpl for all pigs under all conditions were 7.6 ± 4.5, 7.2 ± 3.6, and 8.0 ± 4.8 cmH2O, respectively. The repeated measures correlations showed that both the ΔPes and cΔCVP-derived ΔPpl showed a strong correlation with the Δd-Ppl (ΔPes: r = 0.95, p < 0.0001; cΔCVP-derived ΔPpl: r = 0.97, p < 0.0001, respectively). In the Bland-Altman analysis to test the performance of the cΔCVP-derived ΔPpl to predict the Δd-Ppl, the ΔPes and cΔCVP-derived ΔPpl showed almost the same bias and precision (ΔPes: 0.5 and 1.7 cmH2O; cΔCVP-derived ΔPpl: - 0.3 and 1.9 cmH2O, respectively). No significant difference was found in the bias and precision depending on the intravascular volume and intraabdominal pressure in both comparisons between the ΔPes and Δd-Ppl, and cΔCVP-derived ΔPpl and Δd-Ppl. CONCLUSIONS The CVP method can estimate the ΔPpl with reasonable accuracy, similar to Pes measurement. The accuracy was not affected by the intravascular volume or chest wall compliance.
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Affiliation(s)
- Miyako Kyogoku
- Department of Intensive Care, Osaka Women's and Children's Hospital, 840 Murodo-Cho, Izumi, Osaka, 594-1101, Japan
| | - Soichi Mizuguchi
- Department of Emergency and Critical Care Center, Kyushu University, Fukuoka, Japan
| | - Taku Miyasho
- Laboratory of Animal Biological Responses, Department of Veterinary Science School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan
| | - Yusuke Endo
- Laboratory of Animal Biological Responses, Department of Veterinary Science School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan
- Laboratory for Critical Care, Department of Emergency Medicine-Cardio Pulmonary, Feinstein Institutes for Medical Research, Manhasset, NY, USA
| | - Yu Inata
- Department of Intensive Care, Osaka Women's and Children's Hospital, 840 Murodo-Cho, Izumi, Osaka, 594-1101, Japan
| | - Kazuya Tachibana
- Department of Anesthesiology, Osaka Women's and Children's Hospital, Osaka, Japan
| | - Yuji Fujino
- Department of Anesthesiology and Intensive Care Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Kazuto Yamashita
- Department of Anesthesiology, Rakuno Gakuen University, Hokkaido, Japan
| | - Muneyuki Takeuchi
- Department of Intensive Care, Osaka Women's and Children's Hospital, 840 Murodo-Cho, Izumi, Osaka, 594-1101, Japan.
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Chong PF, Higashi K, Matsuoka W, Arimura K, Sangatsuda Y, Iwaki K, Sonoda Y, Ichimiya Y, Kamori A, Kawakami A, Mizuguchi S, Kaku N, Sakai Y, Ohga S. Persistent intracranial hyper-inflammation in ruptured cerebral aneurysm after COVID-19: case report and review of the literature. BMC Neurol 2024; 24:17. [PMID: 38166683 PMCID: PMC10759412 DOI: 10.1186/s12883-023-03493-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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 12/06/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND The systemic manifestations of coronavirus disease 2019 (COVID-19) include hyperinflammatory reactions in various organs. Recent studies showed evidence for the frequent involvement of central nervous system in affected patients; however, little is known about clinical features of cerebrovascular diseases in childhood-onset COVID-19. CASE PRESENTATION A 10-year-old boy recovered from SARS-CoV-2 infection without complication. On 14 days after infection, he presented with loss of consciousness. A head computed tomography detected a ruptured cerebral aneurysm at the left posterior cerebral artery accompanying subarachnoid hemorrhage (SAH). Immediate surgical intervention did not rescue the patient, resulting in the demise 7 days after admission. Serological and genetic tests excluded the diagnosis of vasculitis and connective tissue disorders. Retrospective analysis showed markedly higher levels of interleukin (IL)-1β, IL-6 and IL-8 in the cerebrospinal fluid than the serum sample concurrently obtained. A review of literature indicated that adult patients with COVID-19 have a risk for the later development of SAH during the convalescent phase of COVID-19. CONCLUSIONS SAH is a severe complication of COVID-19 in children and adults who have asymptomatic cerebrovascular aneurysms. The markedly high levels of cytokines detected in the cerebrospinal fluid suggested that intracranial hyperinflammatory condition might be one of the possible mechanisms involved in the rupture of a preexisting cerebrovascular aneurysms.
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Affiliation(s)
- Pin Fee Chong
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Kanako Higashi
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
- Emergency and Critical Care Center, Kyushu University Hospital, Fukuoka, 812-8582, Japan
| | - Wakato Matsuoka
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
- Emergency and Critical Care Center, Kyushu University Hospital, Fukuoka, 812-8582, Japan
| | - Koichi Arimura
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Yuhei Sangatsuda
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Katsuma Iwaki
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Yuri Sonoda
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
- Research Center for Environment and Developmental Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Yuko Ichimiya
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Akiko Kamori
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Akiko Kawakami
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
- Emergency and Critical Care Center, Kyushu University Hospital, Fukuoka, 812-8582, Japan
| | - Soichi Mizuguchi
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
- Emergency and Critical Care Center, Kyushu University Hospital, Fukuoka, 812-8582, Japan
| | - Noriyuki Kaku
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
- Emergency and Critical Care Center, Kyushu University Hospital, Fukuoka, 812-8582, Japan
| | - Yasunari Sakai
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan.
| | - Shouichi Ohga
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
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4
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Hatakeyama K, Shono Y, Hashimoto T, Sakamoto T, Nishihara M, Iyonaga T, Mizuguchi S, Sakamoto T, Maki J, Akahoshi T. Emphysematous pyelonephritis with ST elevation accompanied by reciprocal changes mimicking acute coronary syndrome. Am J Emerg Med 2023:S0735-6757(23)00330-3. [PMID: 37423820 DOI: 10.1016/j.ajem.2023.06.038] [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: 06/14/2023] [Accepted: 06/19/2023] [Indexed: 07/11/2023] Open
Abstract
Patients with infectious diseases including sepsis can develop ST segment changes on an electrocardiogram (ECG) in the absence of coronary artery disease. However, ST elevation with "reciprocal ST segment depression (RSTD)", which is recognized as a specific finding for ST-elevated myocardial infarction, is rare in such patients. Although a small number of cases have reported ST-segment elevation in gastritis, cholecystitis, and sepsis, regardless of coronary artery disease, none presented with reciprocal changes. Here, we describe a rare case of a patient with emphysematous pyelonephritis complicating septic shock who developed ST elevation accompanied by reciprocal changes with no coronary occlusion. Emergency physicians should consider the possibility of acute coronary syndrome mimicking, and choose non-invasive diagnostic procedures when investigating the causes of ECG abnormalities associated with critically ill patients.
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Affiliation(s)
- Kiwamu Hatakeyama
- Emergency and Critical Care Center, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, Japan
| | - Yuji Shono
- Emergency and Critical Care Center, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, Japan.
| | - Takuma Hashimoto
- Department of Anesthesiology and Critical Care Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Taiki Sakamoto
- Emergency and Critical Care Center, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, Japan; Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Masaaki Nishihara
- Emergency and Critical Care Center, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, Japan; Department of Cardiovascular Medicine, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Takeshi Iyonaga
- Emergency and Critical Care Center, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, Japan; Department of Cardiovascular Medicine, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Soichi Mizuguchi
- Emergency and Critical Care Center, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, Japan
| | - Takafumi Sakamoto
- Department of Cardiovascular Medicine, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Jun Maki
- Department of Anesthesiology and Critical Care Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Tomohiko Akahoshi
- Emergency and Critical Care Center, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, Japan
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Nakashima Y, Gotoh K, Mizuguchi S, Setoyama D, Takata Y, Kanno T, Kang D. Attenuating Effect of Chlorella Extract on NLRP3 Inflammasome Activation by Mitochondrial Reactive Oxygen Species. Front Nutr 2021; 8:763492. [PMID: 34692754 PMCID: PMC8531207 DOI: 10.3389/fnut.2021.763492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 09/13/2021] [Indexed: 11/21/2022] Open
Abstract
The NOD-like receptor family, pyrin domain-containing protein 3 (NLRP3) inflammasome has been linked to the pathogenesis of a wide variety of human diseases. Although many drugs and inhibitors have been developed to treat NLRP3-associated diseases, only limited clinical data support their efficacy and safety. Chlorella, a unicellular green alga that is widely and safely used as a food supplement, contains various antioxidants. In this study, we obtained a fat-soluble extract from Chlorella (CE) and demonstrated that it reduced NLRP3 inflammasome activation by inhibiting mitochondrial reactive oxygen species and caspase-1 activation. In addition, CE supplementation attenuated lipopolysaccharide-induced interleukin 1β transcription through activation of hypoxia-inducible factor 1α in vitro and in vivo. As Chlorella is a safe and useful food supplement, it may be a practical pharmacological approach for treating NLRP3-driven diseases.
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Affiliation(s)
- Yuya Nakashima
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Department of Research and Development, Chlorella Industry Co., Ltd., Fukuoka, Japan
| | - Kazuhito Gotoh
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Soichi Mizuguchi
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Daiki Setoyama
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yurie Takata
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Toshihiro Kanno
- Department of Research and Development, Chlorella Industry Co., Ltd., Fukuoka, Japan
| | - Dongchon Kang
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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6
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Ichimiya Y, Mizuguchi S, Motomura Y, Koga Y, Kaku N, Hata N, Yoshimoto K, Sakata A, Suzuki SO, Iwaki T, Sakai Y, Ohga S. Acute-phase electroencephalography for an infantile atypical teratoid/rhabdoid tumor. Clin Neurol Neurosurg 2021; 209:106922. [PMID: 34509751 DOI: 10.1016/j.clineuro.2021.106922] [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: 06/12/2021] [Revised: 08/13/2021] [Accepted: 08/26/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Primary brain tumor is a leading cause of death in cancer-bearing children. Acutely progressive patterns of electroencephalography (EEG) remain to be investigated for children with rapidly growing brain tumors. CASE REPORT A 14-month-old boy was transferred to our department for prolonged seizures and unrecovered consciousness on his fifth day of illness. The EEG recording on admission showed highly disorganized background activity with high-voltage rhythmic delta waves. Serial EEG monitoring revealed a rapid transition of the background activity to the suppression-burst pattern, and then to generalized suppression of cortical activity within a few hours after admission. Magnetic resonance imaging detected a midline tumor at the pineal gland extending to the midbrain and pons. The tumor was pathologically confirmed as atypical teratoid/rhabdoid tumor (AT/RT) with absent expression of SMARCB1. He died of tumor progression on the 20th day after admission. CONCLUSION AT/RT is an additional category of brain tumors that cause the clinically and electro-physiologically critical condition in a few days after the onset.
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Affiliation(s)
- Yuko Ichimiya
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Soichi Mizuguchi
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshitomo Motomura
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yuhki Koga
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Noriyuki Kaku
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Nobuhiro Hata
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University Hospital, Fukuoka Japan
| | - Koji Yoshimoto
- Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University Hospital, Fukuoka Japan; Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Ayumi Sakata
- Department of Clinical Chemistry and Laboratory Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - Satoshi O Suzuki
- Department of Neuropathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Toru Iwaki
- Department of Neuropathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yasunari Sakai
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Shouichi Ohga
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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7
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Mizuguchi S, Gotoh K, Nakashima Y, Setoyama D, Takata Y, Ohga S, Kang D. Mitochondrial Reactive Oxygen Species Are Essential for the Development of Psoriatic Inflammation. Front Immunol 2021; 12:714897. [PMID: 34421919 PMCID: PMC8378889 DOI: 10.3389/fimmu.2021.714897] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 07/16/2021] [Indexed: 12/13/2022] Open
Abstract
Psoriasis is a common immune-mediated, chronic, inflammatory skin disease that affects approximately 2-3% of the population worldwide. Although there is increasing evidence regarding the essential roles of the interleukin (IL)-23/IL-17 axis and dendritic cell (DC)-T cell crosstalk in the development of skin inflammation, the contributions of mitochondrial function to psoriasis are unclear. In a mouse model of imiquimod (IMQ)-induced psoriasiform skin inflammation, we found that hematopoietic cell-specific genetic deletion of p32/C1qbp, a regulator of mitochondrial protein synthesis and metabolism, protects mice from IMQ-induced psoriatic inflammation. Additionally, we demonstrate that p32/C1qbp is an important regulator of IMQ-induced DC activation, both in vivo and in vitro. We also found that p32/C1qbp-deficient DCs exhibited impaired production of IL-1β, IL-23, and mitochondrial reactive oxygen species (mtROS) after IMQ stimulation. Because the inhibition of mtROS suppressed IMQ-induced DC activation and psoriatic inflammation, we presume that p32/C1qbp and mtROS can serve as therapeutic targets in psoriasis.
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Affiliation(s)
- Soichi Mizuguchi
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kazuhito Gotoh
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yuya Nakashima
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Daiki Setoyama
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yurie Takata
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shouichi Ohga
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Dongchon Kang
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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8
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Tetsuhara K, Kaku N, Watanabe Y, Kumamoto M, Ichimiya Y, Mizuguchi S, Higashi K, Matsuoka W, Motomura Y, Sanefuji M, Hiwatashi A, Sakai Y, Ohga S. Predictive values of early head computed tomography for survival outcome after cardiac arrest in childhood: a pilot study. Sci Rep 2021; 11:12090. [PMID: 34103642 PMCID: PMC8187472 DOI: 10.1038/s41598-021-91628-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 05/28/2021] [Indexed: 12/17/2022] Open
Abstract
Predicting outcomes of children after cardiac arrest (CA) remains challenging. To identify useful prognostic markers for pediatric CA, we retrospectively analyzed the early findings of head computed tomography (CT) of patients. Subjects were non-traumatic, out-of-hospital CA patients < 16 years of age who underwent the first head CT within 24 h in our institute from 2006 to 2018 (n = 70, median age: 4 months, range 0–163). Of the 24 patients with return of spontaneous circulation, 14 survived up to 30 days after CA. The degree of brain damage was quantitatively measured with modified methods of the Alberta Stroke Program Early CT Score (mASPECTS) and simplified gray-matter-attenuation-to-white-matter-attenuation ratio (sGWR). The 14 survivors showed higher mASPECTS values than the 56 non-survivors (p = 0.035). All 3 patients with mASPECTS scores ≥ 20 survived, while an sGWR ≥ 1.14 indicated a higher chance of survival than an sGWR < 1.14 (54.5% vs. 13.6%). Follow-up magnetic resonance imaging for survivors validated the correlation of the mASPECTS < 15 with severe brain damage. Thus, low mASPECTS scores were associated with unfavorable neurological outcomes on the Pediatric Cerebral Performance Category scale. A quantitative analysis of early head CT findings might provide clues for predicting survival of pediatric CA.
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Affiliation(s)
- Kenichi Tetsuhara
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Emergency and Critical Care Center, Kyushu University Hospital, Fukuoka, Japan
| | - Noriyuki Kaku
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan. .,Emergency and Critical Care Center, Kyushu University Hospital, Fukuoka, Japan.
| | - Yuka Watanabe
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Masaya Kumamoto
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yuko Ichimiya
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Soichi Mizuguchi
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kanako Higashi
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Wakato Matsuoka
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Emergency and Critical Care Center, Kyushu University Hospital, Fukuoka, Japan
| | - Yoshitomo Motomura
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Masafumi Sanefuji
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Akio Hiwatashi
- Department of Radiology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yasunari Sakai
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shouichi Ohga
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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9
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Gotoh K, Takata Y, Nakashima Y, Mizuguchi S, Komori K, Kang D. Metabolic analysis of mouse bone-marrow-derived dendritic cells using an extracellular flux analyzer. STAR Protoc 2021; 2:100401. [PMID: 33851138 PMCID: PMC8039729 DOI: 10.1016/j.xpro.2021.100401] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Dendritic cell (DC) maturation induced by Toll-like receptor (TLR) agonists requires the activation of downstream metabolic changes. Here, we provide a detailed protocol to measure glycolysis, mitochondrial respiration, and fatty acid oxidation in mouse bone-marrow-derived DCs with the Seahorse XF24 extracellular flux (XF) analyzer. XF analysis with the Seahorse bioanalyzer has become a standard method to measure bioenergetic functions in cells, and this protocol can be adapted to other immune cells. For complete information on using this protocol, please refer to Gotoh et al. (2018). Measuring energy metabolism in dendritic cells with an extracellular flux analyzer Analyzing TLR-induced glycolytic changes in dendritic cells Analyzing mitochondrial stress test and fatty acid oxidation in dendritic cells
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Affiliation(s)
- Kazuhito Gotoh
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Yurie Takata
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Yuya Nakashima
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Soichi Mizuguchi
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Keishi Komori
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Dongchon Kang
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
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10
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Gotoh K, Kunisaki Y, Mizuguchi S, Setoyama D, Hosokawa K, Yao H, Nakashima Y, Yagi M, Uchiumi T, Semba Y, Nogami J, Akashi K, Arai F, Kang D. Mitochondrial Protein Synthesis Is Essential for Terminal Differentiation of CD45 - TER119 -Erythroid and Lymphoid Progenitors. iScience 2020; 23:101654. [PMID: 33103089 PMCID: PMC7578749 DOI: 10.1016/j.isci.2020.101654] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 09/06/2020] [Accepted: 10/05/2020] [Indexed: 12/11/2022] Open
Abstract
p32/C1qbp regulates mitochondrial protein synthesis and is essential for oxidative phosphorylation in mitochondria. Although dysfunction of p32/C1qbp impairs fetal development and immune responses, its role in hematopoietic differentiation remains unclear. Here, we found that mitochondrial dysfunction affected terminal differentiation of newly identified erythroid/B-lymphoid progenitors among CD45– Ter119– CD31– triple-negative cells (TNCs) in bone marrow. Hematopoietic cell-specific genetic deletion of p32/C1qbp (p32cKO) in mice caused anemia and B-lymphopenia without reduction of hematopoietic stem/progenitor cells. In addition, p32cKO mice were susceptible to hematopoietic stress with delayed recovery from anemia. p32/C1qbp-deficient CD51– TNCs exhibited impaired mitochondrial oxidation that consequently led to inactivation of mTORC1 signaling, which is essential for erythropoiesis. These findings uncover the importance of mitochondria, especially at the stage of TNCs during erythropoiesis, suggesting that dysregulation of mitochondrial protein synthesis is a cause of anemia and B-lymphopenia with an unknown pathology. p32/C1qbp is essential for development of erythrocytes and B-lymphocytes p32/C1qbp is necessary for terminal erythrocyte differentiation from CD44+ CD51– TNCs p32/C1qbp regulates mitochondrial OXPHOS and mTORC1 signaling pathway in CD51– TNCs
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Affiliation(s)
- Kazuhito Gotoh
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
- Corresponding author
| | - Yuya Kunisaki
- Department of Stem Cell Biology and Medicine/Cancer Stem Cell Research, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
- Department of Medicine and Biosystemic Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
- Center for Cellular and Molecular Medicine, Kyushu University Hospital, Fukuoka 812-8582, Japan
- Corresponding author
| | - Soichi Mizuguchi
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Daiki Setoyama
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Kentaro Hosokawa
- Department of Stem Cell Biology and Medicine/Cancer Stem Cell Research, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Hisayuki Yao
- Department of Stem Cell Biology and Medicine/Cancer Stem Cell Research, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Yuya Nakashima
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Mikako Yagi
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
- Department of Health Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Takeshi Uchiumi
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
- Department of Health Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Yuichiro Semba
- Center for Cellular and Molecular Medicine, Kyushu University Hospital, Fukuoka 812-8582, Japan
| | - Jumpei Nogami
- Center for Cellular and Molecular Medicine, Kyushu University Hospital, Fukuoka 812-8582, Japan
| | - Koichi Akashi
- Department of Medicine and Biosystemic Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Fumio Arai
- Department of Stem Cell Biology and Medicine/Cancer Stem Cell Research, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Dongchon Kang
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan
- Corresponding author
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11
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Mizuguchi S, Takahama M, Nakajima R, Nomura N, Suzuki S, Kanno Y, Yamamoto R. P2.05-19 The Patency of Right Upper Lobe Bronchus After Y-Stent Placement Affect Outcome on Malignant Tracheobronchial Stenosis. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1618] [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: 11/29/2022]
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12
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Gotoh K, Morisaki T, Setoyama D, Sasaki K, Yagi M, Igami K, Mizuguchi S, Uchiumi T, Fukui Y, Kang D. Mitochondrial p32/C1qbp Is a Critical Regulator of Dendritic Cell Metabolism and Maturation. Cell Rep 2018; 25:1800-1815.e4. [DOI: 10.1016/j.celrep.2018.10.057] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 09/18/2018] [Accepted: 10/15/2018] [Indexed: 12/12/2022] Open
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13
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Sanefuji M, Ichimiya Y, Kaku N, Sasazuki M, Yonemoto K, Torio M, Mizuguchi S, Motomura Y, Muraoka M, Lee S, Baba H, Ohkubo K, Sonoda Y, Ishizaki Y, Sakai Y, Ohga S. Vascular pathomechanism in acute encephalopathy with biphasic seizures and late reduced diffusion. J Neurol Sci 2018; 395:141-146. [PMID: 30317181 DOI: 10.1016/j.jns.2018.10.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 09/30/2018] [Accepted: 10/02/2018] [Indexed: 10/28/2022]
Abstract
Acute encephalopathy with biphasic seizures and late reduced diffusion (AESD) is a childhood-onset encephalopathy, but the precise pathophysiology remains unclear. We encountered a child with Moyamoya syndrome and AESD. He exhibited left-predominant stenosis of the middle cerebral artery (MCA), and later developed broad lesions in the left hemisphere, raising the possibility that insufficient blood supply relates to formation of the lesions. To test the hypothesis, we investigated the relationship between MCA volume and lesion extent in seven AESD children without preexisting diseases. The MCA volume and lesion extent were quantified with time of flight images for construction of magnetic resonance angiography and apparent diffusion coefficient maps, respectively. Lateralization indices ([right - left]/[right + left]) of the MCA volume and lesion extent were calculated. We found that the lateralization indices were negatively correlated (r = -0.786, p = .036), that is, when the MCA volume was smaller in one side than the other side, the lesions were likely to develop more extensively in the ipsilateral side than the contralateral side. This indicates the association of insufficient blood supply with the lesions. The present study provides the first observation to suggest the involvement of vascular mechanism in AESD and has potential implications for novel therapeutic approach.
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Affiliation(s)
- Masafumi Sanefuji
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Research Center for Environment and Developmental Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Yuko Ichimiya
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Emergency and Critical Care Center, Kyushu University Hospital, Fukuoka, Japan
| | - Noriyuki Kaku
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Emergency and Critical Care Center, Kyushu University Hospital, Fukuoka, Japan
| | - Momoko Sasazuki
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kosuke Yonemoto
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Michiko Torio
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Soichi Mizuguchi
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Emergency and Critical Care Center, Kyushu University Hospital, Fukuoka, Japan
| | - Yoshitomo Motomura
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Emergency and Critical Care Center, Kyushu University Hospital, Fukuoka, Japan
| | - Mamoru Muraoka
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Emergency and Critical Care Center, Kyushu University Hospital, Fukuoka, Japan
| | - Sooyoung Lee
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Department of Intensive Care, Fukuoka Children's Hospital, Fukuoka, Japan
| | - Haruhisa Baba
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Department of Pediatrics, National Fukuoka-Higashi Medical Center, Fukuoka, Japan
| | - Kazuhiro Ohkubo
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yuri Sonoda
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Research Center for Environment and Developmental Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshito Ishizaki
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yasunari Sakai
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shouichi Ohga
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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14
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Mizuguchi S, Takahama M, Nakajima R, Inoue H, Ito R, Nomura N, Yamamoto R. P1.05-10 Usefulness of Respiratory Dilatation Balloon in Tracheobronchial Stenosis Requiring Silicone Y-Stent Treatment. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.762] [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: 11/30/2022]
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15
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Ichimiya Y, Kaku N, Sanefuji M, Torio M, Mizuguchi S, Motomura Y, Muraoka M, Lee S, Baba H, Sonoda Y, Ishizaki Y, Sasazuki M, Sakai Y, Maehara Y, Ohga S. Predictive indicators for the development of epilepsy after acute encephalopathy with biphasic seizures and late reduced diffusion. Epilepsy Res 2018; 143:70-74. [PMID: 29669310 DOI: 10.1016/j.eplepsyres.2018.04.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 04/02/2018] [Accepted: 04/09/2018] [Indexed: 11/29/2022]
Abstract
Acute encephalopathy with biphasic seizures and late reduced diffusion (AESD) is a newly defined clinicoradiologic syndrome characterized by biphasic seizures and altered consciousness followed by restricted diffusion in the white matter on magnetic resonance imaging in acute phase. Intractable epilepsy commonly occurs as the late complication. This study aimed to search predisposing factors to the development of epilepsy after AESD. Consecutively treated 22 patients with AESD in our institution from 2006 to 2016 were grouped into those with post-encephalopathic epilepsy (PEE, n = 10) or without PEE (n = 12). There was no difference between two groups in age at the onset of AESD, duration of the initial seizures, or the follow-up periods after discharge. PEE group patients more frequently showed coma or involuntary movements during the course of AESD than non-PEE group patients (36% vs. 8%, p = 0.008). The quantitative analysis of apparent diffusion coefficient (ADC) map revealed that PEE group showed broader areas with reduced diffusion in the posterior lobes at the onsets of AESD than non-PEE group (0.113 vs. 0.013, p = 0.035). On the other hand, the atrophy on day 30-ADC map did not correlate with the development or control of epilepsy. These results suggest that the clinical severity and ADC profiles in acute phase, rather than the brain atrophy in convalescent phase, may predict the development of post-AESD epilepsy.
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Affiliation(s)
- Yuko Ichimiya
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Emergency and Critical Care Center, Kyushu University Hospital, Fukuoka, Japan
| | - Noriyuki Kaku
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Emergency and Critical Care Center, Kyushu University Hospital, Fukuoka, Japan
| | - Masafumi Sanefuji
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Research Center for Environment and Developmental Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Michiko Torio
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Soichi Mizuguchi
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Emergency and Critical Care Center, Kyushu University Hospital, Fukuoka, Japan
| | - Yoshitomo Motomura
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Emergency and Critical Care Center, Kyushu University Hospital, Fukuoka, Japan
| | - Mamoru Muraoka
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Emergency and Critical Care Center, Kyushu University Hospital, Fukuoka, Japan
| | - Sooyoung Lee
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Department of Intensive Care, Fukuoka Children's Hospital, Fukuoka, Japan
| | - Haruhisa Baba
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Department of Pediatrics, National Fukuoka-Higashi Medical Center, 1-1-1 Chidori, Koga, Fukuoka 811-3195, Japan
| | - Yuri Sonoda
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Research Center for Environment and Developmental Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshito Ishizaki
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Momoko Sasazuki
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yasunari Sakai
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshihiko Maehara
- Emergency and Critical Care Center, Kyushu University Hospital, Fukuoka, Japan
| | - Shouichi Ohga
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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16
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Ichimiya Y, Kaku N, Sakai Y, Yamashita F, Matsuoka W, Muraoka M, Akamine S, Mizuguchi S, Torio M, Motomura Y, Hirata Y, Ishizaki Y, Sanefuji M, Torisu H, Takada H, Maehara Y, Ohga S. Transient dysautonomia in an acute phase of encephalopathy with biphasic seizures and late reduced diffusion. Brain Dev 2017; 39:621-624. [PMID: 28413125 DOI: 10.1016/j.braindev.2017.03.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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] [Received: 11/28/2016] [Revised: 03/02/2017] [Accepted: 03/17/2017] [Indexed: 01/01/2023]
Abstract
Paroxysmal sympathetic hyperactivity (PSH) is a dysautonomic condition that is associated with various types of acquired brain injuries. Traumatic brain lesions have been documented as the leading cause of PSH. However, detailed clinical features of pediatric PSH caused by intrinsic brain lesions remain to be elusive. We present a 3-year-old boy, who had been diagnosed as having cerebral palsy, developmental delay and epilepsy after perinatal hypoxia-induced brain injury. He developed status epilepticus with fever on the third day of respiratory infection. Whereas the seizure was terminated by systemic infusion of midazolam, consciousness remained disturbed for the next 48h. Serial magnetic resonance imaging studies revealed that acute encephalopathy with biphasic seizures and late reduced diffusion (AESD) evolved on 3days after the seizure. Therapeutic hypothermia was immediately introduced, however, the brain lesion extended to the whole subcortical white matters on day 8. The intermittent bilateral dilation of pupils with increased blood pressure and tachycardia were observed until day 12. Real-time monitoring of electroencephalograms ruled out the recurrent attacks of seizures. The abnormal signs of autonomic nervous system gradually ceased and never relapsed after recovery from the hypothermia. PSH or a transient condition of dysautonomia may emerge and persist during the acute phase of AESD.
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Affiliation(s)
- Yuko Ichimiya
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Emergency and Critical Care Center, Kyushu University, Fukuoka, Japan
| | - Noriyuki Kaku
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Emergency and Critical Care Center, Kyushu University, Fukuoka, Japan
| | - Yasunari Sakai
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Fumiya Yamashita
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Wakato Matsuoka
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Emergency and Critical Care Center, Kyushu University, Fukuoka, Japan
| | - Mamoru Muraoka
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Emergency and Critical Care Center, Kyushu University, Fukuoka, Japan
| | - Satoshi Akamine
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Soichi Mizuguchi
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Emergency and Critical Care Center, Kyushu University, Fukuoka, Japan
| | - Michiko Torio
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshitomo Motomura
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Emergency and Critical Care Center, Kyushu University, Fukuoka, Japan
| | - Yuichiro Hirata
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Emergency and Critical Care Center, Kyushu University, Fukuoka, Japan
| | - Yoshito Ishizaki
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Masafumi Sanefuji
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroyuki Torisu
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Department of Pediatrics, Fukuoka Dental College Medical and Dental Hospital, Fukuoka, Japan
| | - Hidetoshi Takada
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshihiko Maehara
- Emergency and Critical Care Center, Kyushu University, Fukuoka, Japan
| | - Shouichi Ohga
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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17
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Lee S, Sanefuji M, Torio M, Kaku N, Ichimiya Y, Mizuguchi S, Baba H, Sakai Y, Ishizaki Y, Torisu H, Kira R, Hara T, Ohga S. Involuntary movements and coma as the prognostic marker for acute encephalopathy with biphasic seizures and late reduced diffusion. J Neurol Sci 2016; 370:39-43. [PMID: 27772782 DOI: 10.1016/j.jns.2016.09.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 09/07/2016] [Accepted: 09/09/2016] [Indexed: 10/21/2022]
Abstract
Acute encephalopathy with biphasic seizures and late reduced diffusion (AESD) occurs in children associated with infection. It is characterized by a prolonged febrile seizure in the first phase, and a cluster of seizures, deterioration of consciousness and the white matter lesions with reduced diffusion in the second phase. The patients often have severe neurological sequelae, but the prognostic indicators remain unknown. The present study aimed to clarify the characteristics of AESD patients who subsequently exhibited severe neurological sequelae. We retrospectively analyzed the clinical and laboratory findings along with the brain imaging in patients who had severe (n=8) and non-severe neurodevelopmental outcomes (n=12). Severe group more frequently showed coma (p=0.014) or involuntary movements including dystonia and oral dyskinesia (p=0.018) before the second phase than non-severe group. Severe group exhibited higher levels of serum alanine aminotransferase than non-severe group (p=0.001). Quantitatively assessed MRI in the second phase revealed that severe group had more extensive lesions than non-severe group, in the anterior (p=0.015) and posterior parts (p=0.011) of the cerebrum and basal ganglia (p=0.020). Early appearing involuntary movements or coma might account for the extension of acute brain lesions and the poor neurological outcomes in AESD patients.
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Affiliation(s)
- Sooyoung Lee
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; Emergency and Critical Care Center, Kyushu University Hospital, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; Fukuoka Children's Hospital, 50101 Kashiiteriha, Higashi-ku, Fukuoka 813-0017, Japan
| | - Masafumi Sanefuji
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; Research Center for Environment and Developmental Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
| | - Michiko Torio
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Noriyuki Kaku
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; Emergency and Critical Care Center, Kyushu University Hospital, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Yuko Ichimiya
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; Emergency and Critical Care Center, Kyushu University Hospital, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Soichi Mizuguchi
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; Emergency and Critical Care Center, Kyushu University Hospital, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Haruhisa Baba
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; Emergency and Critical Care Center, Kyushu University Hospital, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; Department of Pediatrics, National Fukuoka-Higashi Medical Center, 1-1-1 Chidori, Koga, Fukuoka 811-3195, Japan
| | - Yasunari Sakai
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Yoshito Ishizaki
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Hiroyuki Torisu
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; Section of Pediatrics, Department of Medicine, Fukuoka Dental College, 2-15-1 Tamura, Sawara-ku, Fukuoka 814-0193, Japan
| | - Ryutaro Kira
- Fukuoka Children's Hospital, 50101 Kashiiteriha, Higashi-ku, Fukuoka 813-0017, Japan
| | - Toshiro Hara
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; Fukuoka Children's Hospital, 50101 Kashiiteriha, Higashi-ku, Fukuoka 813-0017, Japan
| | - Shouichi Ohga
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
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Moon K, Mizuguchi S, Tachibana K, Takeuchi M. Tidal volume accuracy during non-invasive ventilation with modern neonatal mechanical ventilators. Crit Care 2015. [PMCID: PMC4470642 DOI: 10.1186/cc14342] [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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Mizuguchi S, Gray H, Calabrese LS, Haff GG, Sands WA, Ramsey MW, Cardinale M, Stone MH. Repeated change-of-direction test for collegiate male soccer players. J Sports Med Phys Fitness 2014; 54:417-423. [PMID: 24721988] [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: 06/03/2023]
Abstract
AIM The aim of the study was to investigate the applicability of a repeated change-of-direction (RCoD) test for NCAA Division-I male soccer players. METHODS The RCoD test consisted of 5 diagonal direction changes per repetition with a soccer ball to be struck at the end. Each player performed 15 repetitions with approximately 10 seconds to jog back between repetitions. Data were collected in two sessions. In the first session, 13 players were examined for heart rate responses and blood lactate concentrations. In the second session, 22 players were examined for the test's ability to discriminate the primary from secondary players (78.0±16.1 and 10.4±13.3 minutes per match, respectively). RESULTS Heart rate data were available only from 9 players due to artifacts. The peak heart rate (200.2±6.6 beats∙min-1: 99.9±3.0% maximum) and blood lactate concentration (14.8±2.4 mmol∙L-1 immediately after) resulted in approximately 3.5 and 6.4-fold increases from the resting values, respectively. These values appear comparable to those during intense periods of soccer matches. In addition, the average repetition time of the test was found to discriminate the primary (4.85±0.23 s) from the secondary players (5.10±0.24 s) (P=0.02). CONCLUSION The RCoD test appears to induce physiological responses similar to intense periods of soccer matches with respect to heart rate and blood lactate concentration. Players with better average repetition times tend to be those who play major minutes.
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Affiliation(s)
- S Mizuguchi
- Center of Excellence for Sport Science and Coach Education, Department of Kinesiology Leisure, and Sport Science East Tennessee State University, Johnson City, TN, USA -
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Agarwal M, Nitta R, Dovat S, Li G, Arita H, Narita Y, Fukushima S, Tateishi K, Matsushita Y, Yoshida A, Miyakita Y, Ohno M, Collins VP, Kawahara N, Shibui S, Ichimura K, Kahn SA, Gholamin S, Junier MP, Chneiweiss H, Weissman I, Mitra S, Cheshier S, Avril T, Hamlat A, Le Reste PJ, Mosser J, Quillien V, Carrato C, Munoz-Marmol A, Serrano L, Pijuan L, Hostalot C, Villa SL, Ariza A, Etxaniz O, Balana C, Benveniste ET, Zheng Y, McFarland B, Drygin D, Bellis S, Bredel M, Lotsch D, Engelmaier C, Allerstorfer S, Grusch M, Pichler J, Weis S, Hainfellner J, Marosi C, Spiegl-Kreinecker S, Berger W, Bronisz A, Nowicki MO, Wang Y, Ansari K, Chiocca EA, Godlewski J, Brown K, Kwatra M, Brown K, Kwatra M, Bui T, Nitta R, Li G, Zhu S, Kozono D, Li J, Kushwaha D, Carter B, Chen C, Schulte J, Srikanth M, Das S, Zhang J, Lathia J, Yin L, Rich J, Olson E, Kessler J, Chenn A, Cherry A, Haas B, Lin YH, Ong SE, Stella N, Cifarelli CP, Griffin RJ, Cong D, Zhu W, Shi Y, Clark P, Kuo J, Hu S, Sun D, Bookland M, Darbinian N, Dey A, Robitaille M, Remke M, Faury D, Maier C, Malhotra A, Jabado N, Taylor M, Angers S, Kenney A, Ren X, Zhou H, Schur M, Baweja A, Singh M, Erdreich-Epstein A, Fu J, Koul D, Yao J, Saito N, Zheng S, Verhaak R, Lu Z, Yung WKA, Gomez G, Volinia S, Croce C, Brennan C, Cavenee W, Furnari F, Lopez SG, Qu D, Petritsch C, Gonzalez-Huarriz M, Aldave G, Ravi D, Rubio A, Diez-Valle R, Marigil M, Jauregi P, Vera B, Rocha AADL, Tejada-Solis S, Alonso MM, Gopal U, Isaacs J, Gruber-Olipitz M, Dabral S, Ramkissoon S, Kung A, Pak E, Chung J, Theisen M, Sun Y, Monrose V, Franchetti Y, Sun Y, Shulman D, Redjal N, Tabak B, Beroukhim R, Zhao J, Buonamici S, Ligon K, Kelleher J, Segal R, Haas B, Canton D, Diaz P, Scott J, Stella N, Hara K, Kageji T, Mizobuchi Y, Kitazato K, Okazaki T, Fujihara T, Nakajima K, Mure H, Kuwayama K, Hara T, Nagahiro S, Hill L, Botfield H, Hossain-Ibrahim K, Logan A, Cruickshank G, Liu Y, Gilbert M, Kyprianou N, Rangnekar V, Horbinski C, Hu Y, Vo C, Li Z, Ke C, Ru N, Hess KR, Linskey ME, Zhou YAH, Hu F, Vinnakota K, Wolf S, Kettenmann H, Jackson PJ, Larson JD, Beckmann DA, Moriarity BS, Largaespada DA, Jalali S, Agnihotri S, Singh S, Burrell K, Croul S, Zadeh G, Kang SH, Yu MO, Song NH, Park KJ, Chi SG, Chung YG, Kim SK, Kim JW, Kim JY, Kim JE, Choi SH, Kim TM, Lee SH, Kim SK, Park SH, Kim IH, Park CK, Jung HW, Koldobskiy M, Ahmed I, Ho G, Snowman A, Raabe E, Eberhart C, Snyder S, Agnihotri S, Gugel I, Remke M, Bornemann A, Pantazis G, Mack S, Shih D, Sabha N, Taylor M, Tatagiba M, Zadeh G, Krischek B, Schulte A, Liffers K, Kathagen A, Riethdorf S, Westphal M, Lamszus K, Lee JS, Xiao J, Patel P, Schade J, Wang J, Deneen B, Erdreich-Epstein A, Song HR, Leiss L, Gjerde C, Saed H, Rahman A, Lellahi M, Enger PO, Leung R, Gil O, Lei L, Canoll P, Sun S, Lee D, Ho ASW, Pu JKS, Zhang XQ, Lee NP, Dat PJR, Leung GKK, Loetsch D, Steiner E, Holzmann K, Spiegl-Kreinecker S, Pirker C, Hlavaty J, Petznek H, Hegedus B, Garay T, Mohr T, Sommergruber W, Grusch M, Berger W, Lukiw WJ, Jones BM, Zhao Y, Bhattacharjee S, Culicchia F, Magnus N, Garnier D, Meehan B, McGraw S, Hashemi M, Lee TH, Milsom C, Gerges N, Jabado N, Trasler J, Pawlinski R, Mackman N, Rak J, Maherally Z, Thorne A, An Q, Barbu E, Fillmore H, Pilkington G, Maherally Z, Tan SL, Tan S, An Q, Fillmore H, Pilkington G, Malhotra A, Choi S, Potts C, Ford DA, Nahle Z, Kenney AM, Matlaf L, Khan S, Zider A, Singer E, Cobbs C, Soroceanu L, McFarland BC, Hong SW, Rajbhandari R, Twitty GB, Gray GK, Yu H, Benveniste EN, Nozell SE, Minata M, Kim S, Mao P, Kaushal J, Nakano I, Mizowaki T, Sasayama T, Tanaka K, Mizukawa K, Nishihara M, Nakamizo S, Tanaka H, Kohta M, Hosoda K, Kohmura E, Moeckel S, Meyer K, Leukel P, Bogdahn U, Riehmenschneider MJ, Bosserhoff AK, Spang R, Hau P, Mukasa A, Watanabe A, Ogiwara H, Saito N, Aburatani H, Mukherjee J, Obha S, See W, Pieper R, Nakajima K, Hara K, Kageji T, Mizobuchi Y, Kitazato K, Fujihara T, Otsuka R, Kung D, Nagahiro S, Rajbhandari R, Sinha T, Meares G, Benveniste EN, Nozell S, Ott M, Litzenburger U, Rauschenbach K, Bunse L, Pusch S, Ochs K, Sahm F, Opitz C, von Deimling A, Wick W, Platten M, Peruzzi P, Chiocca EA, Godlewski J, Read R, Fenton T, Gomez G, Wykosky J, Vandenberg S, Babic I, Iwanami A, Yang H, Cavenee W, Mischel P, Furnari F, Thomas J, Ronellenfitsch MW, Thiepold AL, Harter PN, Mittelbronn M, Steinbach JP, Rybakova Y, Kalen A, Sarsour E, Goswami P, Silber J, Harinath G, Aldaz B, Fabius AWM, Turcan S, Chan TA, Huse JT, Sonabend AM, Bansal M, Guarnieri P, Lei L, Soderquist C, Leung R, Yun J, Kennedy B, Sisti J, Bruce S, Bruce R, Shakya R, Ludwig T, Rosenfeld S, Sims PA, Bruce JN, Califano A, Canoll P, Stockhausen MT, Kristoffersen K, Olsen LS, Poulsen HS, Stringer B, Day B, Barry G, Piper M, Jamieson P, Ensbey K, Bruce Z, Richards L, Boyd A, Sufit A, Burleson T, Le JP, Keating AK, Sundstrom T, Varughese JK, Harter P, Prestegarden L, Petersen K, Azuaje F, Tepper C, Ingham E, Even L, Johnson S, Skaftnesmo KO, Lund-Johansen M, Bjerkvig R, Ferrara K, Thorsen F, Takeshima H, Yamashita S, Yokogami K, Mizuguchi S, Nakamura H, Kuratsu J, Fukushima T, Morishita K, Tanaka H, Sasayama T, Tanaka K, Nakamizo S, Mizukawa K, Kohmura E, Tang Y, Vaka D, Chen S, Ponnuswami A, Cho YJ, Monje M, Tateishi K, Narita Y, Nakamura T, Cahill D, Kawahara N, Ichimura K, Tiemann K, Hedman H, Niclou SP, Timmer M, Tjiong R, Rohn G, Goldbrunner R, Timmer M, Tjiong R, Stavrinou P, Rohn G, Perrech M, Goldbrunner R, Tokita M, Mikheev S, Sellers D, Mikheev A, Kosai Y, Rostomily R, Tritschler I, Seystahl K, Schroeder JJ, Weller M, Wade A, Robinson AE, Phillips JJ, Gong Y, Ma Y, Cheng Z, Thompson R, Wang J, Fan QW, Cheng C, Gustafson W, Charron E, Zipper P, Wong R, Chen J, Lau J, Knobbe-Thosen C, Weller M, Jura N, Reifenberger G, Shokat K, Weiss W, Wu S, Fu J, Zheng S, Koul D, Yung WKA, Wykosky J, Hu J, Taylor T, Villa GR, Gomez G, Mischel PS, Gonias SL, Cavenee W, Furnari F, Yamashita D, Kondo T, Takahashi H, Inoue A, Kohno S, Harada H, Ohue S, Ohnishi T, Li P, Ng J, Yuelling L, Du F, Curran T, Yang ZJ, Zhu D, Castellino RC, Van Meir EG, Zhu W, Begum G, Wang Q, Clark P, Yang SS, Lin SH, Kahle K, Kuo J, Sun D. CELL BIOLOGY AND SIGNALING. Neuro Oncol 2013. [DOI: 10.1093/neuonc/not174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Beckham G, Mizuguchi S, Carter C, Sato K, Ramsey M, Lamont H, Hornsby G, Haff G, Stone M. Relationships of isometric mid-thigh pull variables to weightlifting performance. J Sports Med Phys Fitness 2013; 53:573-581. [PMID: 23903539] [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: 06/02/2023]
Abstract
AIM The purpose of this study was to evaluate the relationship between weightlifting performance (snatch, clean and jerk, and total) and variables obtained from the isometric mid-thigh pull (IMTP). METHODS Twelve weightlifters, ranging from novice to advanced, performed the IMTP 10 days after a competition. Correlations were used to evaluate relationships between variables of the IMTP and absolute and scaled competition results. RESULTS Unscaled competition results correlated strongly with IRFD (0-200ms: r=0.567-0.645, 0-250ms: r=0.722-0.781) while results correlated weakly with Peak IRFD (5ms window, r=0.360-0.426). Absolute peak force values correlated very strongly with absolute values for the competition performance (r=0.830-0.838). Force at 100ms, 150ms, 200ms and 250ms also correlated strongly with competition results (r=0.643-0.647, r=0.605-0.636, r=0.714-0.732, r=0.801-0.804). Similar findings were noted for allometrically scaled values. CONCLUSION Measures of average IRFD probably represent a more relevant variable to dynamic performance than does Peak IRFD (5ms). Maximum isometric strength also is likely to have a strong role in weightlifting performance.
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Affiliation(s)
- G Beckham
- Department of Exercise and Sports Science, Center of Excellence For Sport Science and Coach Education East Tennessee State University, Johnson City, TN, USA -
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Markovic N, McCaig LA, Stephen J, Mizuguchi S, Veldhuizen RAW, Lewis JF, Cepinskas G. Mediators released from LPS-challenged lungs induce inflammatory responses in liver vascular endothelial cells and neutrophilic leukocytes. Am J Physiol Gastrointest Liver Physiol 2009; 297:G1066-76. [PMID: 19815624 DOI: 10.1152/ajpgi.00278.2009] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [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: 01/31/2023]
Abstract
The systemic inflammatory response plays an important role in the progression of acute lung injury (ALI) to multiple organ dysfunction syndrome (MODS). However, the role of lung-derived inflammatory mediators in induction of the inflammatory response in remote organs is poorly understood. To address the above, we investigated the effects of lung inflammation on induction of inflammatory response(s) in the liver in vitro. Inflammation in mouse lungs was induced by intranasal administration of lipopolysaccharide (LPS; 1 mg/ml) followed by mechanical ventilation using the isolated perfused mouse lung method to obtain and characterize lung perfusate from the pulmonary circulation. LPS administration to mouse lungs resulted in an increased release of inflammation-relevant cytokines and chemokines into the perfusate (Luminex assay) compared with the saline-controls. Subsequently, primary mouse liver vascular endothelial cells (LVEC) or mouse polymorphonuclear leukocytes (PMN) in vitro were stimulated with the perfusate obtained from saline- or LPS-challenged lungs and assessed for various inflammation-relevant end points. The obtained results indicate that stimulation of LVEC with perfusate obtained from LPS-challenged lungs results in 1) reactive oxygen species (ROS) production; 2) activation of NF-kappaB; and 3) expression of E-selectin, ICAM-1, and VCAM-1 and a subsequent increase in PMN rolling and adhesion to LVEC. In addition, perfusate from LPS-challenged lung induced activation of PMN with respect to increased ROS production and upregulation of cell surface levels of adhesion molecules MAC-1 and VLA-4. Heat-inactivation of the perfusate obtained from LPS-challenged lungs was very effective in suppressing increased proadhesive phenotype (i.e., E-selectin and ICAM-1 expression) in LVEC, whereas targeted inhibition (immunoneutralization) of TNF-alpha and/or IL-6 in LPS-lung perfusate had no effect. Taken together, these findings indicate that multiple proinflammatory mediators (proteinaceous in nature) released from inflamed lungs act synergistically to induce systemic activation of circulating PMN and promote inflammatory responses in liver vascular endothelial cells.
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Affiliation(s)
- N Markovic
- Centre for Critical Illness Research, Lawson Health Research Institute, London, ON, Canada
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Tsukioka T, Inoue K, Iwata T, Izumi N, Mizuguchi S, Morita R, Suehiro S. [Bronchial artery embolization for treatment of mediastinal hemorrhage after pulmonary resection: report of a case]. Kyobu Geka 2005; 58:1169-72. [PMID: 16359020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
We report a rare case of mediastinal hemorrhage after pulmonary resection. A 64-year-old woman with hypersensitivity pneumonitis was diagnosed as adenocarcinoma of the lung by bronchoscopical examination. Left lower lobectomy and mediastinal lymph node dissection were performed. Sudden chest pain and dry cough developed 14 days after the operation. Her diastolic pressure rose transiently but electrocardiogram remained normal. Chest X-ray showed widening of the mediastinum and enhanced chest computed tomography (CT) showed extravasation of the contrast media just under the bifurcation of the trachea. Multi projection volume reconstruction revealed mediastinal hemorrhage from the bronchial artery. The chest pain disappeared after a successful bronchial artery embolization and the patient discharged 21 days later. Hemorrhage after pulmonary resection is a common complication, but no previous report has described mediastinal hemorrhage occurring 2 weeks after the operation. In a similar case, bronchial artery embolization is a reliable and minimally invasive therapy for mediastinal hemorrhage.
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Affiliation(s)
- Takuma Tsukioka
- Department of Thoracic Surgery, Osaka City University Hospital, Osaka, Japan
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Arai K, Ohno T, Saeki T, Mizuguchi S, Kamata K, Hayashi I, Saigenji K, Murata T, Narumiya S, Majima M. Endogenous prostaglandin I2 regulates the neural emergency system through release of calcitonin gene related peptide. Gut 2003; 52:1242-9. [PMID: 12912853 PMCID: PMC1773782 DOI: 10.1136/gut.52.9.1242] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND We previously reported that endogenous prostaglandin I(2), generated by a mild irritant, sensitised calcitonin gene related peptide (CGRP) containing sensory nerves and facilitated the release of CGRP and gastric mucosal protection against ethanol. Administration of capsaicin also inhibited ethanol induced gastric mucosal injury through immediate release of CGRP from primary sensory neurones, which is termed the neural emergency system. In the present study, we tested whether endogenous prostaglandin I(2) also modulates the cytoprotective action of capsaicin using prostaglandin I receptor knockout mice (IP(-/-)). METHODS The stomachs of IP(-/-) or their wild-type counterparts (IP(+/+)), anaesthetised with urethane (1.225 g/kg), were doubly cannulated from the oesophageal and duodenal sides, and the gastric mucosa was perfused (1 ml/min) with physiological saline. Perfusate was changed to 50% ethanol alone, or 50% ethanol containing capsaicin (16 approximately 1600 micro M). The injured area was estimated at the end of each perfusion experiment. In some animals, CGRP-(8-37), a CGRP antagonist (0.3 mg/kg), or indomethacin (1 mg/kg) was intravenously injected before perfusion of 50% ethanol containing capsaicin. RESULTS Capsaicin inhibited the injured area in a dose dependent manner. Fifty per cent ethanol containing capsaicin (480 micro M) immediately increased intragastric levels of CGRP although 50% ethanol alone did not. The protective action of capsaicin (480 micro M) against ethanol was completely abolished by intravenous injection of CGRP-(8-37). Indomethacin also inhibited the protective action of capsaicin, and this was accompanied by reduced levels of intragastric CGRP. Intragastric levels of prostaglandin E(2) were not increased by capsaicin treatment but those of 6-keto-prostaglandin F(1alpha), a metabolite of prostaglandin I(2), were markedly increased. No protective action of capsaicin was observed in IP(-/-) which lacked the ability to increase intragastric CGRP levels in response to ethanol containing capsaicin. The CGRP content of the stomach from untreated IP(-/-) did not differ from those in IP(+/+). Capsaicin (160 micro M) together with intragastric perfusion of beraprost sodium (PGI(2) analogue, 2.5 micro g/ml) showed enhanced protection against ethanol induced injury. This enhanced protection was completely blocked by intravenous injection of CGRP-(8-37). CONCLUSIONS The present results suggest that endogenous prostaglandin I(2) enhances the protective action of the capsaicin mediated neural emergency system against ethanol induced gastric mucosal injury through enhancement of CGRP release.
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Affiliation(s)
- K Arai
- Department of Internal Medicine, Kitasato University School of Medicine, Sagamihara, Kanagawa 228-8555, Japan
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Masuda T, Mizuguchi S, Tanaka T, Iritani K, Takeda Y, Yonemori S. Isolation and structure determination of new antioxidative ferulic acid glucoside esters from the rhizome of Alpinia speciosa, a Zingiberaceae plant used in Okinawan food culture. J Agric Food Chem 2000; 48:1479-1484. [PMID: 10820046 DOI: 10.1021/jf991294e] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [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
An assay-guided isolation gave three antioxidants including two newly identified compounds from the rhizomes of Alpinia speciosa, which is used as an important plant in the food culture of the Okinawa area of Japan. Spectroscopic analysis of the two new compounds revealed them to be new glucoside esters of ferulic acid. The antioxidant activity of the esters was measured using two different methods. Both compounds showed greater activity than that of Trolox in the TLC method; however, one of the compounds showed weaker inhibitory activity than that of Trolox and epicatechin against AMVN-induced methyl linoleate oxidation.
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Affiliation(s)
- T Masuda
- Tropical Biosphere Research Center, University of Ryukyus, Taketomi, Okinawa 907-1541, Japan.
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Nomura K, Mizuguchi S, Tajima T, Nomura KH. [Blood group antigens and cell adhesion]. Seikagaku 2000; 72:91-104. [PMID: 10737100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Affiliation(s)
- K Nomura
- Department of Biology, Graduate School of Science, Kyusyu University, Fukuoka
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Mizuguchi S, Amada K, Haruki M, Imanaka T, Morikawa M, Kanaya S. Identification of the gene encoding esterase, a homolog of hormone-sensitive lipase, from an oil-degrading bacterium, strain HD-1. J Biochem 1999; 126:731-7. [PMID: 10502682 DOI: 10.1093/oxfordjournals.jbchem.a022510] [Citation(s) in RCA: 6] [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: 11/14/2022] Open
Abstract
The gene encoding an esterase (HDE) was cloned from an oil-degrading bacterium, strain HD-1. HDE is a member of the hormone-sensitive lipase family and composed of 317 amino acid residues with a molecular weight of 33,633. The HDE-encoding gene was expressed in Escherichia coli, and the recombinant protein was purified and characterized. Amino acid sequence analysis indicated that the methionine residue was removed from its NH(2)-terminus. The good agreement of the molecular weights estimated by SDS-PAGE (35,000) and gel filtration (38,000) suggests that it acts in a monomeric form. HDE showed hydrolytic activity towards p-nitrophenyl esters of fatty acids with an acyl chain length of 2 to 14 and tributyrin, whereas it showed little hydrolytic activity towards p-nitrophenyl oleate (C(18)), tricaprylin and triolein. Determination of the kinetic parameters for the hydrolyses of the p-nitrophenyl substrates from C(2) to C(14) indicated that HDE shows a relatively broad substrate specificity. However, comparison of the k(cat)/K(m) values indicated that the C(10)-C(14) substrates are the most preferred ones. Such a preference for substrates with long acyl chains may be a characteristic of HDE.
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Affiliation(s)
- S Mizuguchi
- Department of Material and Life Science, Graduate School of Engineering, Osaka University, Osaka, 565-0871, Japan
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Haruki M, Oohashi Y, Mizuguchi S, Matsuo Y, Morikawa M, Kanaya S. Identification of catalytically essential residues in Escherichia coli esterase by site-directed mutagenesis. FEBS Lett 1999; 454:262-6. [PMID: 10431819 DOI: 10.1016/s0014-5793(99)00813-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [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: 10/18/2022]
Abstract
Escherichia coli esterase (EcE) is a member of the hormone-sensitive lipase family. We have analyzed the roles of the conserved residues in this enzyme (His103, Glu128, Gly163, Asp164, Ser165, Gly167, Asp262, Asp266 and His292) by site-directed mutagenesis. Among them, Gly163, Asp164, Ser165, and Gly167 are the components of a G-D/E-S-A-G motif. We showed that Ser165, Asp262, and His292 are the active-site residues of the enzyme. We also showed that none of the other residues, except for Asp164, is critical for the enzymatic activity. The mutation of Asp164 to Ala dramatically reduced the catalytic efficiency of the enzyme by the factor of 10(4) without seriously affecting the substrate binding. This residue is probably structurally important to make the conformation of the active-site functional.
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Affiliation(s)
- M Haruki
- Department of Material and Life Science, Graduate School of Engineering, Osaka University, Suita, Japan
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Nomura KH, Kobayashi R, Hirabayashi Y, Fujisue-Sakai M, Mizuguchi S, Nomura K. Involvement of blood-group-B-active trisaccharides in Ca2+-dependent cell-cell adhesion in the Xenopus blastula. Dev Genes Evol 1998; 208:9-18. [PMID: 9518520 DOI: 10.1007/s004270050148] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [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: 02/06/2023]
Abstract
Despite their wide distribution in various organisms, no physiological roles have been proposed for the human blood-group-ABO (ABH)-active trisaccharides. Here we show that monoclonal antibodies against human blood-group-B-active trisaccharides (B-substance) completely block the Ca2+-dependent cell-cell adhesion system of frog (Xenopus laevis) embryonic cells. Synthetic B-substance or B-active glycopeptides also disrupt the Ca2+ -dependent cell-cell adhesion. These results suggest that blood-group-B-active substances play a role in cell-cell adhesion. Blood-group-B-active substances were found as glycoproteins and as glycosphingolipids. In order to identify B-active glycoproteins active in cell-cell adhesion, we purified B-active membrane glycoproteins by two-dimensional electrophoresis and found that they are 45- to 58-kDa proteins with pI(s) ranging from 4.0 to 5.3. They are glycosylphosphatidyl inositol (GPI) anchored. Amino acid sequence analysis showed that the purified B-active GPI-anchored proteins are homologues of soluble Xenopus cortical granule lectins (CGL). The results suggest that the B-active membrane glycoproteins are GPI-anchored forms of the lectin and are directly involved in frog Ca 2+-dependent cell-cell adhesion.
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Affiliation(s)
- K H Nomura
- Laboratory of Developmental Biology, Department of Biology, Faculty of Science 33, Fukuoka 812, Japan
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Nakanuma R, Watanabe K, Yamashita K, Mizuguchi S, Hashimoto Y, Nakamura T, Umezawa H. High-performance liquid chromatographic determination of deoxyspergualin in dog plasma with ultraviolet detection. J Chromatogr 1990; 527:208-13. [PMID: 2365782 DOI: 10.1016/s0378-4347(00)82102-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- R Nakanuma
- Research Laboratories of Pharmaceuticals Group, Nippon Kayaku Co., Ltd., Tokyo, Japan
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Yamashita K, Watanabe K, Koga R, Mizuguchi S, Hashimoto Y, Nakamura T, Umezawa H. Determination of deoxyspergualin by gas chromatography-selected-ion monitoring. J Chromatogr 1988; 424:39-48. [PMID: 3366837 DOI: 10.1016/s0378-4347(00)81074-9] [Citation(s) in RCA: 3] [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: 01/05/2023]
Abstract
A gas chromatographic-selected-ion monitoring method was developed for the sensitive and specific determination of deoxyspergualin in dog plasma using a capillary column and a C8-amide homologue of deoxyspergualin as an internal standard. Extraction and purification of deoxyspergualin from its constituents, 7-guanidinoheptanamide and glyoxylylspermidine, and its possible metabolites was achieved by using CM-Sephadex C-25 column chromatography with stepwise elution with sodium chloride solution. Treatment of deoxyspergualin with acetylacetone resulted in the formation of the volatile pyrimidine derivative of 7-guanidinoheptanamide accompanying hydrolytic cleavage in the alpha-hydroxyglycine moiety of deoxyspergualin. Deoxyspergualin could be determined in a concentration of 10 ng/ml in plasma. The method was applied to the determination of deoxyspergualin in plasma during and after intravenous infusion into dogs.
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Affiliation(s)
- K Yamashita
- Research Laboratory, Nippon Kayaku Co., Ltd., Tokyo, Japan
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Abstract
The influence of temperature, electrode plate metals and protamine on the membrane potential of an electrochemically prepared copper-DNA (Cu-DNA) membrane (size, 2.5 X 6 cm; thickness, 80 micron; Cu/P molar ratio, 0.4) was investigated. The results obtained showed that the membrane potential increased with temperature as well as with increasing order of ionization tendency of the divalent metals used, and decreased with an increase of protamine bound to the membrane. These results indicated that electrons accumulated on the anode side, and positive holes formed on the cathode side, of a Cu-DNA membrane prepared by electrolysis.
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Affiliation(s)
- E Watanabe
- Department of Food Engineering, Tokyo University of Fisheries, Japan
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Yamashita K, Watanabe K, Takayama H, Mizuguchi S, Ishibashi M, Miyazaki H, Tanaka W, Umezawa H. Assay of plasma leupeptin using the reversible binding of leupeptin to bovine pancreatic trypsin. Anal Biochem 1986; 156:503-7. [PMID: 3766949 DOI: 10.1016/0003-2697(86)90285-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A competitive binding radioassay for leupeptin has been developed utilizing the reversible binding of leupeptin to bovine pancreatic trypsin. An ethanol precipitation step was introduced to separate trypsin-bound leupeptin from its free form. Advantages of this method are simplicity of the procedure and avoidance of the preparation of antiserum. The possible metabolites of leupeptin exhibit no significant inhibitory effect on leupeptin-trypsin binding in this system. This method was applied to the determination of plasma leupeptin levels in dogs after oral administration of the peptide.
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Shimizu J, Shiraishi H, Sakurabayashi S, Sugiura F, Takizawa H, Miyazaki K, Matsumoto Y, Nishizato Y, Sato T, Watanabe Y, Masuda S, Watanbe Y, Otaka Y, Sakiyama T, Kitagawa T, Mizuguchi S, Ashizawa S. [A report on an adult case of type III glycogenosis with primary liver cancer and liver cirrhosis]. Nihon Shokakibyo Gakkai Zasshi 1982; 79:2328-32. [PMID: 6300490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Takayama H, Itoh M, Mizuguchi S, Abuki H, Ishibashi M, Miyazaki H. [Absorption, excretion, distribution and metabolism of 3H-labelled pepleomycin sulfate (author's transl)]. Jpn J Antibiot 1978; 31:895-909. [PMID: 83412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Absorption, excretion, distribution and metabolism of pepleomycin sulfate (NK631) were investigated in rats after intravenous administration of 3H-NK631 by whole-body autoradiography, CM-Sephadex column chromatography and high performance liquid chromatography. The highest radioactivity was found in kidney, followed by cartilage, blood, lung, esophagus, adrenal gland and skin at 0.5 hour after the administration and little radioactivity was observed in central nerve system. The NK631 and deamide NK631 were identified as major (90%) and minor metabolites in the 24-hour urine.
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Ishii Y, Nishizawa R, Mizuguchi S, Miyazaki H. Absorption, distribution and excretion of gastrin and gastrin-like tetrapeptide. Jpn J Pharmacol 1972; 22:139-46. [PMID: 4538406 DOI: 10.1254/jjp.22.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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37
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Chiba T, Ouchi H, Mizuguchi S, Oara I. [Surgery in a case of subclavian steal syndrome using a vein graft]. Shujutsu 1971; 25:1273-9. [PMID: 5145989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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