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Abe C, Shimatani K, Tsumura K, Takaguchi K, Nakayama Y, Hayashi T, Mori C, Suzuki N. Impact of COVID-19 on the mental health of primary schoolchildren during the later phase of the pandemic: A case report of an 18-month longitudinal survey in a Japanese primary school. Public Health Pract (Oxf) 2024; 7:100471. [PMID: 38328526 PMCID: PMC10847696 DOI: 10.1016/j.puhip.2024.100471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 01/17/2024] [Accepted: 01/19/2024] [Indexed: 02/09/2024] Open
Abstract
Background Drastic changes such as school closures and stay-at-home measures due to the global COVID-19 pandemic, may have long-term negative effects on children's mental health; however, longitudinal studies after 2021 are limited. This study aimed to observe the long-term effects of the COVID-19 pandemic on children's mental health by exploring changes in their mental health over a period of 18 months. Study design We conducted a longitudinal study at Chiba Prefecture in Japan, focusing on schoolchildren's mental health changes. Methods Data were obtained from the Strengths and Difficulties Questionnaire (SDQ) questionnaire conducted at single primary school three times from October 2021 to March 2023 which and included 183 participants. This study adopted a linear-mixed model to evaluate changes in children's SDQ scores, with sex and grade as the independent variables, and participants as a random effect. Results Regarding changes in SDQ scores, there were no significant changes in the total difficulty scores or in each subscale; Emotional Symptoms, Conduct Problems, Hyperactivity/Inattention, Peer Problems, and Prosocial Behavior. There was no statistically significant interaction between changes in SDQ scores and sex. Conclusions This report indicates that the impact of the COVID-19 pandemic on the mental health of Japanese primary schoolchildren was negligible in the later phase of the pandemic. However, the impact may differ from country to country owing to factors such as social restrictions during the COVID-19 pandemic.
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Affiliation(s)
- C. Abe
- Department of Architecture, Division of Creative Engineering, Graduate School of Science and Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba-shi, Chiba, 263-8522, Japan
| | - K. Shimatani
- Center for Preventive Medical Sciences, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba-shi, Chiba, 263-8522, Japan
| | - K. Tsumura
- Center for Preventive Medical Sciences, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba-shi, Chiba, 263-8522, Japan
| | - K. Takaguchi
- Center for Preventive Medical Sciences, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba-shi, Chiba, 263-8522, Japan
| | - Y. Nakayama
- Center for Preventive Medical Sciences, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba-shi, Chiba, 263-8522, Japan
| | - T. Hayashi
- Department of Architecture and Urban Science, Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba-shi, Chiba, 263-8522, Japan
| | - C. Mori
- Center for Preventive Medical Sciences, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba-shi, Chiba, 263-8522, Japan
- Department of Bioenvironmental Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan, 1-8-1 Inohana, Chuo-ku, Chiba-shi, Chiba, 260-8670, Japan
| | - N. Suzuki
- Center for Preventive Medical Sciences, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba-shi, Chiba, 263-8522, Japan
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Kimura T, Kubota M, Kihara T, Suzuki N, Hattori A, Saito M. First ray mobility in hallux rigidus, hallux valgus, and normal feet based on weightbearing computed tomography and three-dimensional analysis: A case-control study. J Orthop Sci 2024:S0949-2658(24)00059-9. [PMID: 38670826 DOI: 10.1016/j.jos.2024.04.002] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 03/22/2024] [Accepted: 04/12/2024] [Indexed: 04/28/2024]
Abstract
BACKGROUND Hallux valgus and hallux rigidus are disorders affecting the first ray and are associated with hypermobility of this structure. This study aimed to investigate the three-dimensional mobility of each joint of the first ray between feet with hallux valgus or hallux rigidus and healthy feet using weightbearing and nonweightbearing computed tomography (CT). METHODS This case-control study analyzed 17 feet of 11 healthy volunteers (control group), 16 feet of 16 patients with hallux valgus (HV group), and 16 feet of 11 patients with hallux rigidus (HR group). First, nonweightbearing foot CT imaging was performed in the supine position on a loading device with no load applied, with the legs extended and the ankle in the neutral position. Next, a load equivalent to body weight was applied for weightbearing CT imaging. Distal bone displacement relative to the proximal bone was quantified three-dimensionally under both conditions. RESULTS In the HV group, the talonavicular joint showed significantly greater eversion (P = 00.011) compared with the control group and significantly greater dorsiflexion (P = 00.027) and eversion (P < 00.01) compared with the HR group. In the medial cuneiform joint, the HV group showed significantly greater eversion (P < 00.01) and abduction (P = 00.011) than the control group. For the first tarsometatarsal joint, the HV group showed significantly greater dorsiflexion (P = 00.014), inversion (P = 00.028), and adduction (P < 00.01) than the control group, and greater inversion (P < 00.01) and adduction (P < 00.01) than the HR group. Dorsiflexion of the first tarsometatarsal joint was significantly greater in the HR group compared with the control group (P = 00.026). CONCLUSION Hypermobility of the first ray appears to be three-dimensional: in hallux valgus, it is centered at the first tarsometatarsal joint, while in hallux rigidus it is mainly in the sagittal plane at the first tarsometatarsal joint only. This difference may explain the different deformities ultimately observed in each condition.
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Affiliation(s)
- Tadashi Kimura
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, Tokyo, Japan; Institute for High Dimensional Medical Imaging, The Jikei University School of Medicine, Tokyo, Japan.
| | - Makoto Kubota
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Takumi Kihara
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, Tokyo, Japan; Institute for High Dimensional Medical Imaging, The Jikei University School of Medicine, Tokyo, Japan
| | - Naoki Suzuki
- Institute for High Dimensional Medical Imaging, The Jikei University School of Medicine, Tokyo, Japan
| | - Asaki Hattori
- Institute for High Dimensional Medical Imaging, The Jikei University School of Medicine, Tokyo, Japan
| | - Mitsuru Saito
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, Tokyo, Japan
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Suzuki N, Otomaru K, Isobe N. Concentrations of antimicrobial components in milk of Japanese Black cows and their differences from dairy cows. J Vet Med Sci 2024; 86:436-439. [PMID: 38447988 DOI: 10.1292/jvms.23-0365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2024] Open
Abstract
The components of milk from beef cows remain to be elucidated. This study examined the differences in the antimicrobial components of milk between dairy and beef cows. Quarter milk was collected from both Japanese Black (beef type) and Holstein (dairy type) cows to compare the concentrations of antimicrobial components. The concentration of lingual antimicrobial peptide (LAP) was higher, whereas that of the other antimicrobial components (lactoferrin, S100A7, and S100A8) was lower in beef cows than in dairy cows. Overall, these results indicate that the differences in antimicrobial components between beef and dairy cows may be associated with the difference in the prevalence of mastitis between them.
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Affiliation(s)
- Naoki Suzuki
- Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan
| | - Konosuke Otomaru
- Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
| | - Naoki Isobe
- Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan
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Yamashita S, Takahashi Y, Hashimoto J, Murakami A, Nakamura R, Katsuno M, Izumi R, Suzuki N, Warita H, Aoki M. Nationwide survey of patients with multisystem proteinopathy in Japan. Ann Clin Transl Neurol 2024; 11:938-945. [PMID: 38287512 PMCID: PMC11021623 DOI: 10.1002/acn3.52011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 01/13/2024] [Accepted: 01/16/2024] [Indexed: 01/31/2024] Open
Abstract
OBJECTIVE Multisystem proteinopathy (MSP) is an inherited disorder in which protein aggregates with TAR DNA-binding protein of 43 kDa form in multiple organs. Mutations in VCP, HNRNPA2B1, HNRNPA1, SQSTM1, MATR3, and ANXA11 are causative for MSP. This study aimed to conduct a nationwide epidemiological survey based on the diagnostic criteria established by the Japan MSP study group. METHODS We conducted a nationwide epidemiological survey by administering primary and secondary questionnaires among 6235 specialists of the Japanese Society of Neurology. RESULTS In the primary survey, 47 patients with MSP were identified. In the secondary survey of 27 patients, inclusion body myopathy was the most common initial symptom (74.1%), followed by motor neuron disease (11.1%), frontotemporal dementia (FTD, 7.4%), and Paget's disease of bone (PDB, 7.4%), with no cases of parkinsonism. Inclusion body myopathy occurred most frequently during the entire course of the disease (81.5%), followed by motor neuron disease (25.9%), PDB (18.5%), FTD (14.8%), and parkinsonism (3.7%). Laboratory findings showed a high frequency of elevated serum creatine kinase levels and abnormalities on needle electromyography, muscle histology, brain magnetic resonance imaging, and perfusion single-photon emission computed tomography. INTERPRETATION The low frequency of FTD and PDB may suggest that FTD and PDB may be widely underdiagnosed and undertreated in clinical practice.
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Affiliation(s)
- Satoshi Yamashita
- Department of NeurologyGraduate School of Medical Sciences, Kumamoto UniversityKumamotoJapan
- Department of NeurologyInternational University of Health and Welfare Narita HospitalNaritaJapan
| | - Yuji Takahashi
- Department of NeurologyNational Center Hospital, National Center of Neurology and PsychiatryTokyoJapan
| | - Jun Hashimoto
- Department of Orthopaedic SurgeryNational Hospital Organization Osaka Minami Medical CenterOsakaJapan
| | - Ayuka Murakami
- Department of NeurologyNagoya University Graduate School of MedicineNagoyaJapan
| | - Ryoichi Nakamura
- Department of NeurologyNagoya University Graduate School of MedicineNagoyaJapan
- Department of NeurologyAichi Medical University School of MedicineNagakuteAichiJapan
| | - Masahisa Katsuno
- Department of NeurologyNagoya University Graduate School of MedicineNagoyaJapan
- Department of Clinical Research EducationNagoya University Graduate School of MedicineNagoyaJapan
| | - Rumiko Izumi
- Department of NeurologyTohoku University Graduate School of MedicineSendaiJapan
| | - Naoki Suzuki
- Department of NeurologyTohoku University Graduate School of MedicineSendaiJapan
| | - Hitoshi Warita
- Department of NeurologyTohoku University Graduate School of MedicineSendaiJapan
| | - Masashi Aoki
- Department of NeurologyTohoku University Graduate School of MedicineSendaiJapan
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Muraoka S, Asai T, Hamasaki H, Fukui T, Suzuki N, Nishizawa T, Araki Y, Saito R. Delayed leukoencephalopathy following non-coil embolization flow diverter stent deployment for an intracranial aneurysm. Neuroradiology 2024; 66:427-429. [PMID: 38212489 DOI: 10.1007/s00234-024-03281-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 01/01/2024] [Indexed: 01/13/2024]
Abstract
This report examines delayed leukoencephalopathy as a postoperative complication after the use of flow diverter (FD) devices for endovascular cerebral aneurysm treatment. A case involving a 78-year-old female treated with a pipeline embolization device for a left internal carotid artery aneurysm is presented. Despite adherence to dual anti-platelet therapy, the patient developed intermittent headaches and memory issues 3 months post-operation. MRI revealed T1-enhancing foci and T2 hyperintense signal abnormalities in the left cerebral hemisphere, without new ischemic lesions, indicating potential embolic events or foreign body reactions. Following aphasia, a change from clopidogrel to prasugrel and the initiation of steroid pulse therapy led to the resolution of symptoms and MRI abnormalities over 6 months. This case underscores the reversibility of delayed leukoencephalopathy with appropriate intervention.
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Affiliation(s)
- Shinsuke Muraoka
- Department of Neurosurgery, Kariya Toyota General Hospital, Kariya, Aichi, Japan.
| | - Takumi Asai
- Department of Neurosurgery, Kariya Toyota General Hospital, Kariya, Aichi, Japan
| | - Hajime Hamasaki
- Department of Neurosurgery, Kariya Toyota General Hospital, Kariya, Aichi, Japan
| | - Takahiko Fukui
- Department of Neurosurgery, Kariya Toyota General Hospital, Kariya, Aichi, Japan
| | - Naoki Suzuki
- Department of Neurosurgery, Kariya Toyota General Hospital, Kariya, Aichi, Japan
| | - Toshihisa Nishizawa
- Department of Neurosurgery, Kariya Toyota General Hospital, Kariya, Aichi, Japan
| | - Yoshio Araki
- Department of Neurosurgery, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital, Nagoya, Aichi, Japan
| | - Ryuta Saito
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
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Izumi R, Ikeda K, Niihori T, Suzuki N, Shirota M, Funayama R, Nakayama K, Warita H, Tateyama M, Aoki Y, Aoki M. Nuclear pore pathology underlying multisystem proteinopathy type 3-related inclusion body myopathy. Ann Clin Transl Neurol 2024; 11:577-592. [PMID: 38158701 DOI: 10.1002/acn3.51977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 11/28/2023] [Accepted: 12/05/2023] [Indexed: 01/03/2024] Open
Abstract
OBJECTIVE Multisystem proteinopathy type 3 (MSP3) is an inherited, pleiotropic degenerative disorder caused by a mutation in heterogeneous nuclear ribonucleoprotein A1 (hnRNPA1), which can affect the muscle, bone, and/or nervous system. This study aimed to determine detailed histopathological features and transcriptomic profile of HNRNPA1-mutated skeletal muscles to reveal the core pathomechanism of hereditary inclusion body myopathy (hIBM), a predominant phenotype of MSP3. METHODS Histopathological analyses and RNA sequencing of HNRNPA1-mutated skeletal muscles harboring a c.940G > A (p.D314N) mutation (NM_031157) were performed, and the results were compared with those of HNRNPA1-unlinked hIBM and control muscle tissues. RESULTS RNA sequencing revealed aberrant alternative splicing events that predominantly occurred in myofibril components and mitochondrial respiratory complex. Enrichment analyses identified the nuclear pore complex (NPC) and nucleocytoplasmic transport as suppressed pathways. These two pathways were linked by the hub genes NUP50, NUP98, NUP153, NUP205, and RanBP2. In immunohistochemistry, these nucleoporin proteins (NUPs) were mislocalized to the cytoplasm and aggregated mostly with TAR DNA-binding protein 43 kDa and, to a lesser extent, with hnRNPA1. Based on ultrastructural observation, irregularly shaped myonuclei with deep invaginations were frequently observed in atrophic fibers, consistent with the disorganization of NPCs. Additionally, regarding the expression profiles of overall NUPs, reduced expression of NUP98, NUP153, and RanBP2 was shared with HNRNPA1-unlinked hIBMs. INTERPRETATION The shared subset of altered NUPs in amyotrophic lateral sclerosis (ALS), as demonstrated in prior research, HNRNPA1-mutated, and HNRNPA1-unlinked hIBM muscle tissues may provide evidence regarding the underlying common nuclear pore pathology of hIBM, ALS, and MSP.
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Grants
- KAKENHI (20K16571) Grant-in-Aid for Early-Career Scientists from Japan Society for the Promotion of Science (JSPS)
- KAKENHI (20H03586) Grant-in-Aid for Scientific Research (B) from Japan Society for the Promotion of Science (JSPS)
- KAKENHI (23H02821) Grant-in-Aid for Scientific Research (B) from Japan Society for the Promotion of Science (JSPS)
- KAKENHI (20K07897) Grant-in-Aid for Scientific Research (C) from Japan Society for the Promotion of Science (JSPS)
- 23FC1008 Grants-in-Aid from the Research Committee of CNS Degenerative Diseases, Research on Policy Planning and Evaluation for Rare and Intractable Diseases, Health, Labour and Welfare Sciences Research Grants, the Ministry of Health, Labour and Welfare, Japan
- 23FC1010 Grants-in-Aid from the Research Committee of CNS Degenerative Diseases, Research on Policy Planning and Evaluation for Rare and Intractable Diseases, Health, Labour and Welfare Sciences Research Grants, the Ministry of Health, Labour and Welfare, Japan
- 20FC1036 Grants-in-Aid for Research on Rare and Intractable Diseases from the Ministry of Health, Labour and Welfare of Japan
- 23FC1014 Grants-in-Aid for Research on Rare and Intractable Diseases from the Ministry of Health, Labour and Welfare of Japan
- Haruki ALS Research Foundation
- 2-5 Intramural Research Grant for Neurological and Psychiatric Disorders Provided from National Center of Neurology and Psychiatry of Japan
- 5-6 Intramural Research Grant for Neurological and Psychiatric Disorders Provided from National Center of Neurology and Psychiatry of Japan
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Affiliation(s)
- Rumiko Izumi
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
- Department of Medical Genetics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kensuke Ikeda
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tetsuya Niihori
- Department of Medical Genetics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Naoki Suzuki
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Matsuyuki Shirota
- Division of Interdisciplinary Medical Science, United Centers for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ryo Funayama
- Division of Cell Proliferation, United Centers for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Keiko Nakayama
- Division of Cell Proliferation, United Centers for Advanced Research and Translational Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hitoshi Warita
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Maki Tateyama
- Department of Neurology, National Hospital Organization Iwate Hospital, Ichinoseki, Japan
| | - Yoko Aoki
- Department of Medical Genetics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Masashi Aoki
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
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Tsugami Y, Suzuki N, Nii T, Isobe N. Effect of sodium butyrate treatment at the basolateral membranes on the tight junction barrier function via a monocarboxylate transporter in goat mammary epithelial cells. Exp Cell Res 2024; 436:113944. [PMID: 38296017 DOI: 10.1016/j.yexcr.2024.113944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 01/18/2024] [Accepted: 01/21/2024] [Indexed: 02/09/2024]
Abstract
In lactating mammary glands, tight junctions (TJs) prevent blood from mixing with milk and maintain epithelial cell polarity, which is important for milk production. This study aimed to investigate the effect of sodium acetate and sodium butyrate (SB) stimulation direction on the TJ barrier function, which is measured with regard to transepithelial electrical resistance and fluorescein flux, in goat mammary epithelial cells. The expression and localization of the TJ proteins claudin-3 and claudin-4 were examined using Western blotting and immunofluorescence. SB treatment in the lower chamber of cell culture inserts adversely affected the TJ barrier function, whereas sodium acetate barely had any effect, regardless of stimulation direction. In addition, SB treatment in the lower chamber significantly upregulated claudin-3 and claudin-4, whereas TJ proteins showed intermittent localization. Moreover, SB induced endoplasmic reticulum (ER) stress. ARC155858, a monocarboxylate transporter-1 inhibitor, alleviated the adverse impact of SB on TJs and the associated ER stress. Interestingly, sodium β-hydroxybutyrate, a butyrate metabolite, did not affect the TJ barrier function. Our findings indicate that sodium acetate and SB influence the TJ barrier function differently, and excessive cellular uptake of SB can disrupt TJs and induce ER stress.
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Affiliation(s)
- Yusaku Tsugami
- National Institute of Animal Health, National Agriculture and Food Research Organization, 4 Hitsujigaoka, Toyohira, Sapporo, Hokkaido, 062-0045, Japan; Graduate School of Integrated Sciences for Life, Hiroshima University, 1-4-4 Kagamiyama Higashi-Hiroshima, Hiroshima, 739-8528, Japan.
| | - Naoki Suzuki
- Graduate School of Integrated Sciences for Life, Hiroshima University, 1-4-4 Kagamiyama Higashi-Hiroshima, Hiroshima, 739-8528, Japan.
| | - Takahiro Nii
- Graduate School of Integrated Sciences for Life, Hiroshima University, 1-4-4 Kagamiyama Higashi-Hiroshima, Hiroshima, 739-8528, Japan.
| | - Naoki Isobe
- Graduate School of Integrated Sciences for Life, Hiroshima University, 1-4-4 Kagamiyama Higashi-Hiroshima, Hiroshima, 739-8528, Japan.
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Suzuki N, Harada R, Tsugami Y, Nii T, Isobe N. Concentrations of antimicrobial components in milk at dry off and postpartum and their relationships to new high somatic cell counts at quarter level in dairy cows. J DAIRY RES 2024:1-3. [PMID: 38361416 DOI: 10.1017/s0022029924000050] [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] [Indexed: 02/17/2024]
Abstract
We investigated the antimicrobial components in cow milk at dry off and postpartum and their contribution in preventing new high SCC at quarter level. Milk samples from 72 quarters of 19 lactating cows were collected at last milking before dry off and at 7 d after parturition. Milk yield of each cow was recorded and SCC, IgG, IgA, lactoferrin, lingual antimicrobial peptide (LAP), and S100A7 concentrations in each quarter milk sample were measured. The postpartum milk yield was significantly higher than that at dry off. The IgG, IgA and lactoferrin concentrations in milk at dry off were significantly higher than those at postpartum, whereas the LAP concentration was lower. Quarters with SCC < 300 000 cells/ml at both dry off and postpartum were classified as persistent low SCC (PL) whereas those that rose above that same threshold postpartum were classified as new high SCC (NH). At dry off, IgG and LAP concentrations in milk were significantly higher in PL than in NH. These results suggest that high LAP concentrations during the dry period may contribute toward the prevention of new high SCC.
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Affiliation(s)
- Naoki Suzuki
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima 7369-8528, Japan
| | - Rika Harada
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima 7369-8528, Japan
| | - Yusaku Tsugami
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima 7369-8528, Japan
| | - Takahiro Nii
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima 7369-8528, Japan
| | - Naoki Isobe
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima 7369-8528, Japan
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9
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Izumi R, Warita H, Niihori T, Furusawa Y, Nakano M, Oya Y, Kato K, Shiga T, Ikeda K, Suzuki N, Nishino I, Aoki Y, Aoki M. Comprehensive Analysis of a Japanese Pedigree with Biallelic ACAGG Expansions in RFC1 Manifesting Motor Neuronopathy with Painful Muscle Cramps. Cerebellum 2024:10.1007/s12311-024-01666-1. [PMID: 38324175 DOI: 10.1007/s12311-024-01666-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/28/2024] [Indexed: 02/08/2024]
Abstract
Cerebellar ataxia, neuropathy, and vestibular areflexia syndrome (CANVAS) is an autosomal recessive multisystem neurologic disorder caused by biallelic intronic repeats in RFC1. Although the phenotype of CANVAS has been expanding via diagnostic case accumulation, there are scant pedigree analyses to reveal disease penetrance, intergenerational fluctuations in repeat length, or clinical phenomena (including heterozygous carriers). We identified biallelic RFC1 ACAGG expansions of 1000 ~ repeats in three affected siblings having sensorimotor neuronopathy with spinocerebellar atrophy initially presenting with painful muscle cramps and paroxysmal dry cough. They exhibit almost homogeneous clinical and histopathological features, indicating motor neuronopathy. Over 10 years of follow-up, painful intractable muscle cramps ascended from legs to trunks and hands, followed by amyotrophy and subsequent leg pyramidal signs. The disease course combined with the electrophysical and imagery data suggest initial and prolonged hyperexcitability and the ensuing spinal motor neuron loss, which may progress from the lumbar to the rostral anterior horns and later expand to the corticospinal tract. Genetically, heterozygous ACAGG expansions of similar length were transmitted in unaffected family members of three successive generations, and some of them experienced muscle cramps. Leukocyte telomere length assays revealed comparatively shorter telomeres in affected individuals. This comprehensive pedigree analysis demonstrated a non-anticipating ACAGG transmission and high penetrance of manifestations with a biallelic state, especially motor neuronopathy in which muscle cramps serve as a prodromal and disease progress marker. CANVAS and RFC1 spectrum disorder should be considered when diagnosing lower dominant motor neuron disease, idiopathic muscle cramps, or neuromuscular hyperexcitability syndromes.
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Affiliation(s)
- Rumiko Izumi
- Department of Neurology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, Miyagi, 980-8574, Japan
- Department of Medical Genetics, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Hitoshi Warita
- Department of Neurology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, Miyagi, 980-8574, Japan
| | - Tetsuya Niihori
- Department of Medical Genetics, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Yoshihiko Furusawa
- Department of Neurology, National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Misa Nakano
- Department of Neurology, Suita Municipal Hospital, Osaka, Japan
| | - Yasushi Oya
- Department of Neurology, National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Kazuhiro Kato
- Department of Neurology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, Miyagi, 980-8574, Japan
- Department of Neurology, South Miyagi Medical Center, Miyagi, Japan
| | - Takuro Shiga
- Department of Neurology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, Miyagi, 980-8574, Japan
| | - Kensuke Ikeda
- Department of Neurology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, Miyagi, 980-8574, Japan
| | - Naoki Suzuki
- Department of Neurology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, Miyagi, 980-8574, Japan
| | - Ichizo Nishino
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Yoko Aoki
- Department of Medical Genetics, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Masashi Aoki
- Department of Neurology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, Miyagi, 980-8574, Japan.
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10
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Toyoshima M, Suzuki N, Mitsuzawa S, Soga T, Izumi R, Mitsui K, Miyagi S, Aoki M, Kato M. Amyotrophic Lateral Sclerosis with a Priority Request for a Postmortem Kidney Donation to a Relative. Intern Med 2024; 63:305-307. [PMID: 37225489 PMCID: PMC10864066 DOI: 10.2169/internalmedicine.1574-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 02/26/2023] [Indexed: 05/26/2023] Open
Abstract
The patient was 57 years old when he was diagnosed with amyotrophic lateral sclerosis (ALS) at 1 year after developing bulbar symptoms. At 58 years old, he stated that he was considering donating his kidney to his son suffering from diabetic nephropathy. We confirmed the patient's intentions through repeated interviews before his death at 61 years old. Nephrectomy was performed 30 min after his cardiac death. Organ donation spontaneously proposed by an ALS patient should be considered in order to meet the requests of patients who want their families and other patients to live longer, thereby imparting a beneficial legacy through their deaths.
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Affiliation(s)
- Masaya Toyoshima
- Department of Neurology, Shodo-kai Southern Tohoku General Hospital, Japan
- Department of Neurology, Tohoku University Hospital, Japan
| | - Naoki Suzuki
- Department of Neurology, Shodo-kai Southern Tohoku General Hospital, Japan
- Department of Neurology, Tohoku University Hospital, Japan
| | - Shio Mitsuzawa
- Department of Neurology, Shodo-kai Southern Tohoku General Hospital, Japan
- Department of Neurology, Tohoku University Hospital, Japan
| | - Temma Soga
- Department of Neurology, Shodo-kai Southern Tohoku General Hospital, Japan
- Department of Neurology, Tohoku University Hospital, Japan
| | - Rumiko Izumi
- Department of Neurology, Shodo-kai Southern Tohoku General Hospital, Japan
- Department of Neurology, Tohoku University Hospital, Japan
| | - Kazuhiro Mitsui
- Department of Surgery, Shodo-kai Southern Tohoku General Hospital, Japan
| | | | - Masashi Aoki
- Department of Neurology, Tohoku University Hospital, Japan
| | - Masaaki Kato
- Department of Neurology, Shodo-kai Southern Tohoku General Hospital, Japan
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11
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Sun J, Suzuki N, Nii T, Isobe N. Effect of different inflammation states on the antimicrobial components in milk of goat udders after milking cessation. Anim Sci J 2024; 95:e13926. [PMID: 38348633 DOI: 10.1111/asj.13926] [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: 11/15/2023] [Revised: 01/09/2024] [Accepted: 01/26/2024] [Indexed: 02/15/2024]
Abstract
The aim of this study was to examine the effects of milking cessation under different inflammatory conditions on the changes in antimicrobial components in milk and the process of mammary gland involution. Twenty udder halves were divided into two groups: those with (LPS) and without (control) lipopolysaccharide infusion, followed by cessation of milking for 8 weeks. Milk samples were collected weekly. Udder tissue was collected 4 weeks after milking cessation to measure the area of the lobule and connective tissue. After milking cessation, the somatic cell count (SCC) in the control group increased, whereas that in the LPS group did not. Lactoferrin (LF) and cathelicidin (Cath)-2 concentrations increased in both groups, whereas only LF was significantly lower in the LPS group than in the control group at week 4. The Cath-7 and S100A8 concentrations were significantly lower in the LPS group than in the control group. The lobule area was higher, and the connective tissue area was lower in the LPS group than in the control group. These results indicate that inflammation at milking cessation decreased the concentrations of some antimicrobial components and interfered with mammary gland involution. Therefore, animals with mastitis should recover prior to the onset of the dry period.
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Affiliation(s)
- Jinkun Sun
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Japan
| | - Naoki Suzuki
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Japan
- Research Center for Animal Science, Hiroshima University, Higashi-Hiroshima, Japan
| | - Takahiro Nii
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Japan
- Research Center for Animal Science, Hiroshima University, Higashi-Hiroshima, Japan
| | - Naoki Isobe
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Japan
- Research Center for Animal Science, Hiroshima University, Higashi-Hiroshima, Japan
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12
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Suzuki N, Ikeda Y, Oomori G, Yamada S, Okuda T, Minami S. Gastrointestinal: Type 2 autoimmune pancreatitis diagnosed with endoscopic ultrasound-guided fine needle biopsy. J Gastroenterol Hepatol 2023. [PMID: 38159080 DOI: 10.1111/jgh.16459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 12/11/2023] [Indexed: 01/03/2024]
Affiliation(s)
- N Suzuki
- Department of Gastroenterology, Oji General Hospital, Tomakomai, Hokkaido, Japan
| | - Y Ikeda
- Department of Gastroenterology, Oji General Hospital, Tomakomai, Hokkaido, Japan
| | - G Oomori
- Department of Gastroenterology, Oji General Hospital, Tomakomai, Hokkaido, Japan
| | - S Yamada
- Department of Gastroenterology, Oji General Hospital, Tomakomai, Hokkaido, Japan
| | - T Okuda
- Department of Gastroenterology, Oji General Hospital, Tomakomai, Hokkaido, Japan
| | - S Minami
- Department of Gastroenterology, Oji General Hospital, Tomakomai, Hokkaido, Japan
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13
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Jaisue J, Nii T, Suzuki N, Sugino T, Isobe N. Effect of intramammary lipopolysaccharide challenge after repeated intrauterine infusion of lipopolysaccharide on the inflammation status of goat mammary glands. Theriogenology 2023; 212:104-110. [PMID: 37717513 DOI: 10.1016/j.theriogenology.2023.09.006] [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: 06/22/2023] [Revised: 09/05/2023] [Accepted: 09/08/2023] [Indexed: 09/19/2023]
Abstract
Previous studies have shown that a single infusion of lipopolysaccharide (LPS) into the uterus induces mammary gland inflammation. However, repeated LPS infusions return the mammary glands to their basal state of inflammation. To confirm that this is a state of tolerance to LPS, we examined whether tolerance induced by repeated intrauterine LPS infusions limits mammary gland inflammation following subsequent intramammary LPS infusions. In the first experiment, three goats were treated with repeated intrauterine infusions of LPS dissolved in black ink for 5 consecutive days. Blood and milk samples were collected at 2, 4, 6, 12, 24, 48, 72, 96, and 120 h and smeared on glass slides to confirm the translocation of LPS from the uterus to the mammary gland. Black particles were detected in the blood and milk samples more than 2 h after the first infusion and in the connective tissue of the mammary gland after day 5. In the second experiment, goats were divided into two groups: an intrauterine infusion group (IU; n = 7) and a control group (CON; n = 6). The IU group received an intrauterine infusion of 100 μg of LPS in saline for 5 days. Subsequently, LPS was infused into the mammary glands of both groups to examine the effect of intrauterine treatment on the mammary inflammatory response after intramammary LPS infusion. Blood and milk samples were collected at 6, 12, and 24 h, and then daily until 7 d after the intramammary LPS challenge. Interestingly, a significant increase in the milk somatic cell count (SCC), IL-8, IL-1β, and TNF-α concentrations were observed in the CON group compared to the IU group. This suggests that pretreatment with repeated intrauterine infusions of LPS suppresses the inflammatory responses to subsequent intramammary LPS challenges.
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Affiliation(s)
- Jirapat Jaisue
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8528, Japan
| | - Takahiro Nii
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8528, Japan
| | - Naoki Suzuki
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8528, Japan
| | - Toshihisa Sugino
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8528, Japan
| | - Naoki Isobe
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8528, Japan.
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14
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Kuribayashi ST, Yamagishi T, Suzuki N, Asari G, Abo R, Yamamoto H, Yasutomi K, Ohara T, Tachibana Y, Shimada T, Sunagawa T. Association of a promotional campaign for local dining facilities with the occurrence of COVID-19 in Asahikawa City, Japan, in November 2021. Public Health Pract (Oxf) 2023; 6:100403. [PMID: 38099089 PMCID: PMC10719406 DOI: 10.1016/j.puhip.2023.100403] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/08/2023] [Accepted: 06/12/2023] [Indexed: 12/17/2023] Open
Abstract
Objectives As social restrictions of COVID-19 are being eased worldwide, preventing SARS-CoV-2 transmission among staff members and customers in dining facilities is essential to continuously running business because restaurants and bars are high-risk locations for COVID-19 outbreaks. In 2021, COVID-19 outbreaks occurred at restaurants or bars in Asahikawa city, Japan two weeks after the launch of a promotional campaign for local dining facilities. We investigated this event to assess the association between the promotional campaign and the occurrence of SARS-CoV-2 infection. Study design Cohort study. Methods We assessed the association between the occurrence of COVID-19 cases in the restaurants and bars and their participation in the campaign by calculating risk ratio and 95% confidence interval. Results Cases were identified among workers or customers in 4.0% (4/101) of the participating restaurants or bars and in 1.2% (39/3257) of the non-participating restaurants or bars. The risk ratio was 3.3 (95% confidence interval 1.2-9.0). Conclusion The association between the occurrence of SARS-CoV-2 infection in the restaurants or bars and participation in the campaign is undeniable. Promotional campaigns to vitalize dining facilities should be accompanied by enhanced infection prevention measures, especially ventilation.
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Affiliation(s)
| | - Takuya Yamagishi
- Antimicrobial Resistance Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Naoki Suzuki
- Asahikawa City Public Health Office, Hokkaido, Japan
| | - Go Asari
- Asahikawa City Public Health Office, Hokkaido, Japan
| | - Rieko Abo
- Asahikawa City Public Health Office, Hokkaido, Japan
| | | | | | - Tsukasa Ohara
- Hokkaido Government Department of Health and Welfare, Hokkaido, Japan
| | - Yasuko Tachibana
- Hokkaido Government Department of Health and Welfare, Hokkaido, Japan
| | - Tomoe Shimada
- Center for Field Epidemiology Intelligence, Research, and Professional Development, National Institute of Infectious Diseases, Tokyo, Japan
| | - Tomimasa Sunagawa
- Center for Field Epidemiology Intelligence, Research, and Professional Development, National Institute of Infectious Diseases, Tokyo, Japan
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15
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Yamashita S, Tawara N, Zhang Z, Nakane S, Sugie K, Suzuki N, Nishino I, Aoki M. Pathogenic role of anti-cN1A autoantibodies in sporadic inclusion body myositis. J Neurol Neurosurg Psychiatry 2023; 94:1018-1024. [PMID: 37451693 DOI: 10.1136/jnnp-2023-331474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 07/05/2023] [Indexed: 07/18/2023]
Abstract
BACKGROUND Sporadic inclusion body myositis (sIBM) is an intractable muscle disease that frequently affects elderly people. Autoantibodies recognising cytosolic 5'-nucleotidase 1A (cN1A) were found in the sera of patients with sIBM. However, the pathogenic role of the autoantibodies remained unknown. This study investigated the pathogenic properties of the autoantibodies using active cN1A peptides immunisation. METHODS Wild-type C57BL6 mice were injected with three different mouse cN1A peptides corresponding to the previously reported epitope sequences of human cN1A. After confirming the production of autoantibodies to the corresponding cN1A peptides in each group, changes in body weight, exercise capacity by treadmill test and histological changes in mice injected with cN1A peptides or controls were investigated. RESULTS Autoantibodies against cN1A were detected in serum samples from mice injected with cN1A peptide. Some groups of mice injected with cN1A peptide showed significant weight loss and decreased motor activity. The number of myofibres with internal nuclei increased in all the peptide-injected groups, with surrounding or invading CD8-positive T cells into myofibres, abnormal protein aggregates and overexpression of p62 and LC3. CONCLUSIONS Active cN1A peptide immunisation partially reproduced the clinical and histological aspects of sIBM in wild-type mice. The murine model demonstrates the pathogenic properties of anti-cN1A autoantibodies to cause sIBM-like histological changes.
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Affiliation(s)
- Satoshi Yamashita
- Department of Neurology, Kumamoto University, Kumamoto, Japan
- Department of Neurology, International University of Health and Welfare Narita Hospital, Narita, Japan
| | - Nozomu Tawara
- Department of Neurology, Kumamoto University, Kumamoto, Japan
| | - Ziwei Zhang
- Department of Neurology, Kumamoto University, Kumamoto, Japan
| | - Shunya Nakane
- Department of Neurology, Kumamoto University, Kumamoto, Japan
- Department of Neurology, Nippon Medical School, Bunkyo-ku, Tokyo, Japan
| | - Kazuma Sugie
- Department of Neurology, Nara Medical University School of Medicine, Kashihara, Japan
| | - Naoki Suzuki
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ichizo Nishino
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Japan
| | - Masashi Aoki
- Department of Neurology, Tohoku University School of Medicine, Sendai, Miyagi, Japan
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16
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Suzuki N, Okuyama M, Kamiya K. Effects and Limitations of Naldemedine for Opioid-Induced Urinary Retention: A Case Report. J Palliat Med 2023; 26:1593-1595. [PMID: 37347929 DOI: 10.1089/jpm.2023.0269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/24/2023] Open
Abstract
A 78-year-old man with postoperative recurrence of esophageal cancer was admitted to the hospital due to chest pain and dyspnea. Oral short-acting opioids provided some relief, but chest pain persisted and worsened, leading to the initiation of a transdermal fentanyl patch. However, the patient developed opioid-induced urinary retention, which was treated with a naldemedine, a medication used for opioid-induced constipation and urinary retention. Opioid switching led to recurrent urinary retention, requiring placement of a urinary catheter. The patient ultimately required continuous deep sedation for refractory symptoms and died several days later.
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Affiliation(s)
- Naoki Suzuki
- Department of Palliative Medicine, Yamagata Prefectural Central Hospital, Yamagata, Japan
| | - Megumi Okuyama
- Department of Palliative Medicine, Yamagata Prefectural Central Hospital, Yamagata, Japan
| | - Kohei Kamiya
- MY Wells Community Care Workshop, Inc., Yamagata, Japan
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17
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Suzuki N, Purba FY, Inagawa H, Hattori Y, Isobe N. Effects of oral administration of lipopolysaccharide derived from Pantoea agglomerans on innate immunity of mammary glands in dairy goats. Vet Immunol Immunopathol 2023; 265:110664. [PMID: 37918120 DOI: 10.1016/j.vetimm.2023.110664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 10/19/2023] [Accepted: 10/20/2023] [Indexed: 11/04/2023]
Abstract
This study aimed to evaluate the effect of orally administered lipopolysaccharide (LPS) derived from Pantoea agglomerans (LPSpa) on innate immune functions, including the concentrations of antimicrobial components and interleukin (IL)-10 in goat milk, for the prevention of goat mastitis. Twelve Tokara goats were divided into two groups of six goats. Goats in the LPSpa and control groups were orally administrated with 0.4 g/kg dextrin with or without 0.02 mg/kg LPSpa for 7 days (day 0-6), respectively. After treatment (i.e., day 7), 1 μg LPS from Escherichia coli O111 (LPSec) was infused into one side of the udder in both groups to induce mastitis. Milk from all sides of the udder, saliva, and feces were collected on days 0 and 7. After LPSec infusion into the udders, milk was collected from the infused side of the udder on days 8, 10, and 12. Milk yields and somatic cell counts were recorded during the examination period. The concentrations of immunoglobulin (Ig) A in saliva, feces, and milk and the concentrations of lactoferrin, goat β defensin-1 (GBD1), S100A7, and IL-10 in milk were measured. After LPSpa oral administration, the concentrations of GBD-1 and IL-10 in the milk of the LPSpa group were significantly higher on day 7 than those in the control group, and the concentration of IgA in the feces tended to be higher than that in the control group. After LPSec intramammary infusion, S100A7 concentration on day 12 was significantly lower in the LPSpa group than in the control group. These findings suggest that the oral administration of LPSpa may prevent mastitis by increasing the concentration of GBD1 in milk.
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Affiliation(s)
- Naoki Suzuki
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8528, Japan
| | - Fika Yuliza Purba
- Veterinary Medicine Study Program, Faculty of Medicine, Hasanuddin University, Makassar 90245, Indonesia
| | - Hiroyuki Inagawa
- Control of Innate Immunity, Technology Research Association, Takamatsu, Kagawa 761-0301, Japan; Macrophi Inc., Takamatsu, Kagawa 761-0301, Japan
| | | | - Naoki Isobe
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8528, Japan.
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18
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Nakamura R, Tohnai G, Nakatochi M, Atsuta N, Watanabe H, Ito D, Katsuno M, Hirakawa A, Izumi Y, Morita M, Hirayama T, Kano O, Kanai K, Hattori N, Taniguchi A, Suzuki N, Aoki M, Iwata I, Yabe I, Shibuya K, Kuwabara S, Oda M, Hashimoto R, Aiba I, Ishihara T, Onodera O, Yamashita T, Abe K, Mizoguchi K, Shimizu T, Ikeda Y, Yokota T, Hasegawa K, Tanaka F, Nakashima K, Kaji R, Niwa JI, Doyu M, Terao C, Ikegawa S, Fujimori K, Nakamura S, Ozawa F, Morimoto S, Onodera K, Ito T, Okada Y, Okano H, Sobue G. Genetic factors affecting survival in Japanese patients with sporadic amyotrophic lateral sclerosis: a genome-wide association study and verification in iPSC-derived motor neurons from patients. J Neurol Neurosurg Psychiatry 2023; 94:816-824. [PMID: 37142397 DOI: 10.1136/jnnp-2022-330851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 04/18/2023] [Indexed: 05/06/2023]
Abstract
BACKGROUND Several genetic factors are associated with the pathogenesis of sporadic amyotrophic lateral sclerosis (ALS) and its phenotypes, such as disease progression. Here, in this study, we aimed to identify the genes that affect the survival of patients with sporadic ALS. METHODS We enrolled 1076 Japanese patients with sporadic ALS with imputed genotype data of 7 908 526 variants. We used Cox proportional hazards regression analysis with an additive model adjusted for sex, age at onset and the first two principal components calculated from genotyped data to conduct a genome-wide association study. We further analysed messenger RNA (mRNA) and phenotype expression in motor neurons derived from induced pluripotent stem cells (iPSC-MNs) of patients with ALS. RESULTS Three novel loci were significantly associated with the survival of patients with sporadic ALS-FGF1 at 5q31.3 (rs11738209, HR=2.36 (95% CI, 1.77 to 3.15), p=4.85×10-9), THSD7A at 7p21.3 (rs2354952, 1.38 (95% CI, 1.24 to 1.55), p=1.61×10-8) and LRP1 at 12q13.3 (rs60565245, 2.18 (95% CI, 1.66 to 2.86), p=2.35×10-8). FGF1 and THSD7A variants were associated with decreased mRNA expression of each gene in iPSC-MNs and reduced in vitro survival of iPSC-MNs obtained from patients with ALS. The iPSC-MN in vitro survival was reduced when the expression of FGF1 and THSD7A was partially disrupted. The rs60565245 was not associated with LRP1 mRNA expression. CONCLUSIONS We identified three loci associated with the survival of patients with sporadic ALS, decreased mRNA expression of FGF1 and THSD7A and the viability of iPSC-MNs from patients. The iPSC-MN model reflects the association between patient prognosis and genotype and can contribute to target screening and validation for therapeutic intervention.
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Affiliation(s)
- Ryoichi Nakamura
- Department of Neurology, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
- Department of Neurology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Genki Tohnai
- Department of Neurology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
- Division of ALS Research, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - Masahiro Nakatochi
- Public Health Informatics Unit, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Naoki Atsuta
- Department of Neurology, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
- Department of Neurology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Hirohisa Watanabe
- Department of Neurology, Fujita Health University, Toyoake, Aichi, Japan
- Brain and Mind Research Center, Nagoya University, Nagoya, Aichi, Japan
| | - Daisuke Ito
- Department of Neurology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Masahisa Katsuno
- Department of Neurology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
- Department of Clinical Research Education, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Akihiro Hirakawa
- Department of Clinical Biostatistics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan
| | - Yuishin Izumi
- Department of Neurology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Mitsuya Morita
- Division of Neurology, Department of Internal Medicine, Jichi Medical University, Shimotsuke, Tochigi, Japan
| | - Takehisa Hirayama
- Department of Neurology, Toho University Faculty of Medicine, Ota-ku, Tokyo, Japan
| | - Osamu Kano
- Department of Neurology, Toho University Faculty of Medicine, Ota-ku, Tokyo, Japan
| | - Kazuaki Kanai
- Department of Neurology, Fukushima Medical University School of Medicine, Fukushima, Japan
- Department of Neurology, Juntendo University School of Medicine, Bunkyo-ku, Tokyo, Japan
| | - Nobutaka Hattori
- Department of Neurology, Juntendo University School of Medicine, Bunkyo-ku, Tokyo, Japan
| | - Akira Taniguchi
- Department of Neurology, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Naoki Suzuki
- Department of Neurology, Tohoku University School of Medicine, Sendai, Miyagi, Japan
| | - Masashi Aoki
- Department of Neurology, Tohoku University School of Medicine, Sendai, Miyagi, Japan
| | - Ikuko Iwata
- Department of Neurology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Ichiro Yabe
- Department of Neurology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Kazumoto Shibuya
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Satoshi Kuwabara
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Masaya Oda
- Department of Neurology, Vihara Hananosato Hospital, Miyoshi, Hiroshima, Japan
| | - Rina Hashimoto
- Department of Neurology, National Hospital Organization Higashinagoya National Hospital, Nagoya, Aichi, Japan
| | - Ikuko Aiba
- Department of Neurology, National Hospital Organization Higashinagoya National Hospital, Nagoya, Aichi, Japan
| | - Tomohiko Ishihara
- Department of Neurology, Brain Research Institute, Niigata University, Niigata, Japan
| | - Osamu Onodera
- Department of Neurology, Brain Research Institute, Niigata University, Niigata, Japan
| | - Toru Yamashita
- Department of Neurology, Okayama University Graduate School of Medicine, Okayama, Japan
| | - Koji Abe
- Department of Neurology, Okayama University Graduate School of Medicine, Okayama, Japan
| | - Kouichi Mizoguchi
- Department of Neurology, National Hospital Organization Shizuoka Medical Center, Shizuoka, Japan
| | - Toshio Shimizu
- Department of Neurology, Tokyo Metropolitan Neurological Hospital, Fuchu, Tokyo, Japan
| | - Yoshio Ikeda
- Department of Neurology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Takanori Yokota
- Department of Neurology and Neurological Science, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan
| | - Kazuko Hasegawa
- Division of Neurology, National Hospital Organization, Sagamihara National Hospital, Sagamihara, Kanagawa, Japan
| | - Fumiaki Tanaka
- Department of Neurology and Stroke Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Kenji Nakashima
- Department of Neurology, National Hospital Organization, Matsue Medical Center, Matsue, Shimane, Japan
| | - Ryuji Kaji
- Department of Neurology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Jun-Ichi Niwa
- Department of Neurology, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - Manabu Doyu
- Department of Neurology, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - Chikashi Terao
- Laboratory for Statistical and Translational Genetics, RIKEN Center for Integrative Medical Sciences, Yokohama, Kanagawa, Japan
| | - Shiro Ikegawa
- Laboratory for Bone and Joint Diseases, RIKEN Center for Integrative Medical Sciences, Yokohama, Kanagawa, Japan
| | - Koki Fujimori
- Department of Physiology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Shiho Nakamura
- Department of Physiology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Fumiko Ozawa
- Department of Physiology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Satoru Morimoto
- Department of Physiology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Kazunari Onodera
- Department of Neurology, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - Takuji Ito
- Department of Neurology, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - Yohei Okada
- Department of Neurology, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - Hideyuki Okano
- Department of Physiology, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - Gen Sobue
- Brain and Mind Research Center, Nagoya University, Nagoya, Aichi, Japan
- Aichi Medical University, Nagakute, Aichi, Japan
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19
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Aoki M, Izumi R, Suzuki N. [Efficacy of Aceneuramic Acid for Distal Myopathy with Rimmed Vacuoles]. Brain Nerve 2023; 75:1149-1154. [PMID: 37849366 DOI: 10.11477/mf.1416202492] [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: 10/19/2023]
Abstract
Distal myopathy with rimmed vacuoles (DMRV), also known as GNE myopathy, is a rare disease affecting the distal muscles, such as the tibialis anterior muscle. The GNE gene, which codes for a key enzyme in the sialic acid biosynthesis pathway, is mutated in a homozygous or compound heterozygous manner, and the lack of sialic acid in skeletal muscle is the critical underlying mechanism in DMRV pathogenesis. DMRV mouse models were established, and supplementation with sialic acid improved the phenotypes of the models. A phase 1 clinical trial using aceneuramic acid was conducted at Tohoku University Hospital, Japan, followed by trials using a slow-release product. A phase II/III study, subsequent extended trial, and confirmatory trial were also conducted. Regulatory approval is currently under review.
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Affiliation(s)
- Masashi Aoki
- Department of Neurology, Tohoku University School of Medicine
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20
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Hidekawa C, Yoshimi R, Saigusa Y, Tamura J, Kojitani N, Suzuki N, Sakurai N, Yoshioka Y, Sugiyama-Kawahara Y, Kunishita Y, Kishimoto D, Higashitani K, Sato Y, Komiya T, Nagai H, Hamada N, Maeda A, Tsuchida N, Hirahara L, Soejima Y, Takase-Minegishi K, Kirino Y, Yajima N, Sada KE, Miyawaki Y, Ichinose K, Ohno S, Kajiyama H, Sato S, Shimojima Y, Fujiwara M, Nakajima H. Protective effect of hydroxychloroquine on infections in patients with systemic lupus erythematosus: an observational study using the LUNA registry. Front Immunol 2023; 14:1227403. [PMID: 37720209 PMCID: PMC10504661 DOI: 10.3389/fimmu.2023.1227403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 08/14/2023] [Indexed: 09/19/2023] Open
Abstract
Objectives Infection is a leading cause of death in patients with systemic lupus erythematosus (SLE). Alt hough hydroxychloroquine (HCQ) has been reported to inhibit infection, evidence from Asian populations remains insufficient. We investigated this effect in Japanese SLE patients. Methods Data from the Lupus Registry of Nationwide Institutions were used in this study. The patients were ≥20 years old and met the American College of Rheumatology (ACR) classification criteria revised in 1997. We defined "severe infections" as those requiring hospitalization. We analyzed the HCQ's effect on infection suppression using a generalized estimating equation (GEE) logistic regression model as the primary endpoint and performed a survival analysis for the duration until the first severe infection. Results Data from 925 patients were used (median age, 45 [interquartile range 35-57] years; female, 88.1%). GEE analysis revealed that severe infections were significantly associated with glucocorticoid dose (odds ratio [OR] 1.968 [95% confidence interval, 1.379-2.810], p<0.001), immunosuppressants (OR 1.561 [1.025-2.380], p=0.038), and baseline age (OR 1.043 [1.027-1.060], p<0.001). HCQ tended to suppress severe infections, although not significantly (OR 0.590 [0.329-1.058], p=0.077). Survival time analysis revealed a lower incidence of severe infections in the HCQ group than in the non-HCQ group (p<0.001). In a Cox proportional hazards model, baseline age (hazard ratio [HR] 1.029 [1.009-1.050], p=0.005) and HCQ (HR 0.322 [0.142-0.728], p=0.006) were significantly related to incidence. Conclusion HCQ may help extend the time until the occurrence of infection complications and tends to decrease infection rates.
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Affiliation(s)
- Chiharu Hidekawa
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Ryusuke Yoshimi
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
- Clinical Laboratory Department, Yokohama City University Hospital, Yokohama, Japan
| | - Yusuke Saigusa
- Department of Biostatistics, Yokohama City University School of Medicine, Yokohama, Japan
| | - Jun Tamura
- Department of Biostatistics, Yokohama City University School of Medicine, Yokohama, Japan
| | - Noriko Kojitani
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Naoki Suzuki
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Natsuki Sakurai
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Yuji Yoshioka
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Yumiko Sugiyama-Kawahara
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Yosuke Kunishita
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Daiga Kishimoto
- Center for Rheumatic Diseases, Yokohama City University Medical Center, Yokohama, Japan
| | - Kana Higashitani
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Yuichiro Sato
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Takaaki Komiya
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Hideto Nagai
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Naoki Hamada
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Ayaka Maeda
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Naomi Tsuchida
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Lisa Hirahara
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Yutaro Soejima
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kaoru Takase-Minegishi
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Yohei Kirino
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Nobuyuki Yajima
- Division of Rheumatology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Ken-ei Sada
- Department of Clinical Epidemiology, Kochi Medical School, Kochi University, Nankoku, Japan
| | - Yoshia Miyawaki
- Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Kunihiro Ichinose
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Shigeru Ohno
- Center for Rheumatic Diseases, Yokohama City University Medical Center, Yokohama, Japan
| | - Hiroshi Kajiyama
- Department of Rheumatology and Applied Immunology, Faculty of Medicine, Saitama Medical University, Morohongo, Japan
| | - Shuzo Sato
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Yasuhiro Shimojima
- Department of Medicine (Neurology and Rheumatology), Shinshu University School of Medicine, Matsumoto, Japan
| | - Michio Fujiwara
- Department of Rheumatology, Yokohama Rosai Hospital, Yokohama, Japan
| | - Hideaki Nakajima
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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21
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Mori-Yoshimura M, Suzuki N, Katsuno M, Takahashi MP, Yamashita S, Oya Y, Hashizume A, Yamada S, Nakamori M, Izumi R, Kato M, Warita H, Tateyama M, Kuroda H, Asada R, Yamaguchi T, Nishino I, Aoki M. Efficacy confirmation study of aceneuramic acid administration for GNE myopathy in Japan. Orphanet J Rare Dis 2023; 18:241. [PMID: 37568154 PMCID: PMC10416530 DOI: 10.1186/s13023-023-02850-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 08/02/2023] [Indexed: 08/13/2023] Open
Abstract
BACKGROUND A rare muscle disease, GNE myopathy is caused by mutations in the GNE gene involved in sialic acid biosynthesis. Our recent phase II/III study has indicated that oral administration of aceneuramic acid to patients slows disease progression. METHODS We conducted a phase III, randomized, placebo-controlled, double-blind, parallel-group, multicenter study. Participants were assigned to receive an extended-release formulation of aceneuramic acid (SA-ER) or placebo. Changes in muscle strength and function over 48 weeks were compared between treatment groups using change in the upper extremity composite (UEC) score from baseline to Week 48 as the primary endpoint and the investigator-assessed efficacy rate as the key secondary endpoint. For safety, adverse events, vital signs, body weight, electrocardiogram, and clinical laboratory results were monitored. RESULTS A total of 14 patients were enrolled and given SA-ER (n = 10) or placebo (n = 4) tablets orally. Decrease in least square mean (LSM) change in UEC score at Week 48 with SA-ER (- 0.115 kg) was numerically smaller as compared with placebo (- 2.625 kg), with LSM difference (95% confidence interval) of 2.510 (- 1.720 to 6.740) kg. In addition, efficacy was higher with SA-ER as compared with placebo. No clinically significant adverse events or other safety concerns were observed. CONCLUSIONS The present study reproducibly showed a trend towards slowing of loss of muscle strength and function with orally administered SA-ER, indicating supplementation with sialic acid might be a promising replacement therapy for GNE myopathy. TRIAL REGISTRATION NUMBER ClinicalTrials.gov (NCT04671472).
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Affiliation(s)
- Madoka Mori-Yoshimura
- Department of Neurology, National Center Hospital, National Center of Neurology and Psychiatry (NCNP), Tokyo, Japan
| | - Naoki Suzuki
- Department of Neurology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, 980-8574, Japan
| | - Masahisa Katsuno
- Department of Neurology, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Department of Clinical Research Education, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | | | - Satoshi Yamashita
- Department of Neurology, Kumamoto University Hospital, Kumamoto, Japan
| | - Yasushi Oya
- Department of Neurology, National Center Hospital, National Center of Neurology and Psychiatry (NCNP), Tokyo, Japan
| | - Atsushi Hashizume
- Department of Neurology, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Department of Clinical Research Education, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Shinichiro Yamada
- Department of Neurology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | | | - Rumiko Izumi
- Department of Neurology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, 980-8574, Japan
| | - Masaaki Kato
- Department of Neurology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, 980-8574, Japan
| | - Hitoshi Warita
- Department of Neurology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, 980-8574, Japan
| | - Maki Tateyama
- Department of Neurology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, 980-8574, Japan
| | - Hiroshi Kuroda
- Department of Neurology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, 980-8574, Japan
| | - Ryuta Asada
- Innovative and Clinical Research Promotion Center, Gifu University Hospital, Gifu, Japan
| | - Takuhiro Yamaguchi
- Division of Biostatistics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ichizo Nishino
- Department of Neuromuscular Research, National Institute of Neuroscience and Department of Genome Medicine Development, Medical Genome Center, National Center of Neurology and Psychiatry (NCNP), Tokyo, Japan
| | - Masashi Aoki
- Department of Neurology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, 980-8574, Japan.
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22
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Kose E, Nakagawa S, Niki K, Hashizume J, Kawazoe T, Suzuki N, Uchida M, Takase H. Pharmacist Interventions for Adverse Drug Reactions in Palliative Care: A Multicentre Pilot Study. Pharmazie 2023; 78:141-149. [PMID: 37592417 DOI: 10.1691/ph.2023.3554] [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: 08/19/2023]
Abstract
This study aimed to investigate adverse reactions to medications administered during palliative care and compare the responses of Board-Certified Pharmacists in Palliative Pharmacy (BCPPP) and non-BCPPP professionals. Methods: This multicentre prospective survey included hospital and community pharmacists who are members of the Japanese Society for Pharmaceutical Palliative Care and Sciences. Study participants included patients who experienced new drug reactions during the study period and responded to the requested survey items. The follow-up period for each eligible patient began on the day the pharmacists initiated the intervention and ended at discharge, death, or after one month of intervention. The primary endpoint was the impact of pharmacist intervention on adverse drug reactions. The pharmacists included in the study evaluated the severity of adverse drug reactions to assess the effect of their intervention using an integrated palliative care outcome scale before and after the intervention. Key findings: During the survey period, 79 adverse drug reaction intervention reports from 69 patients were obtained from 54 pharmacists (28 certified and 26 non-certified). The response rate was 1.62% (54/3,343). The management of palliative pharmacotherapy side effects by BCPPP and non-BCPPP significantly improved the patients' activities of daily living (P < 0.001). The BCPPP group intervened for significantly more patients with adverse drug reactions and overall adverse drug reactions than the non-BCPPP group (P < 0.023 and P < 0.013, respectively). Conclusion: BCPPP interventions can improve symptom management.
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Affiliation(s)
- E Kose
- Department of Pharmacy; These authors contributed equally to this work
| | - S Nakagawa
- Department of Clinical Pharmacy; Nippon Medical School Tamanagayama Hospital; Research Promotion Committee; These authors contributed equally to this work; Corresponding author: Sari Nakagawa, Department of Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Kobe Gakuin University, 1-1-3 Minatojima, Chuo-ku, Kobe-shi, Hyogo 650-8586, Japan,
| | - K Niki
- Faculty of Pharmaceutical Sciences, Kobe Gakuin University; Department of Clinical Pharmacy Research and Education; Nippon Medical School Tamanagayama Hospital; Research Promotion Committee
| | - J Hashizume
- Graduate School of Pharmaceutical Sciences, Osaka University; Department of Hospital Pharmacy
| | - T Kawazoe
- Nagasaki University Hospital; Department of Clinical Pharmacy; Nippon Medical School Tamanagayama Hospital; Research Promotion Committee
| | - N Suzuki
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University; Department of Pharmacy
| | - M Uchida
- National Hospital Organization Sendai Medical Center; Department of Education and Research Center for Pharmacy Practice; Nippon Medical School Tamanagayama Hospital; Research Promotion Committee
| | - H Takase
- Faculty of Pharmaceutical Sciences, Doshisha Women's College of Liberal Arts; Department of Pharmacy; Nippon Medical School Tamanagayama Hospital; Research Promotion Committee
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23
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Li D, Johmura Y, Morimoto S, Doi M, Nakanishi K, Ozawa M, Tsunekawa Y, Inoue-Yamauchi A, Naruse H, Matsukawa T, Takeshita Y, Suzuki N, Aoki M, Nishiyama A, Zeng X, Konishi C, Suzuki N, Nishiyama A, Harris AS, Morita M, Yamaguchi K, Furukawa Y, Nakai K, Tsuji S, Yamazaki S, Yamanashi Y, Shimada S, Okada T, Okano H, Toda T, Nakanishi M. LONRF2 is a protein quality control ubiquitin ligase whose deficiency causes late-onset neurological deficits. Nat Aging 2023; 3:1001-1019. [PMID: 37474791 DOI: 10.1038/s43587-023-00464-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 06/29/2023] [Indexed: 07/22/2023]
Abstract
Protein misfolding is a major factor of neurodegenerative diseases. Post-mitotic neurons are highly susceptible to protein aggregates that are not diluted by mitosis. Therefore, post-mitotic cells may have a specific protein quality control system. Here, we show that LONRF2 is a bona fide protein quality control ubiquitin ligase induced in post-mitotic senescent cells. Under unperturbed conditions, LONRF2 is predominantly expressed in neurons. LONRF2 binds and ubiquitylates abnormally structured TDP-43 and hnRNP M1 and artificially misfolded proteins. Lonrf2-/- mice exhibit age-dependent TDP-43-mediated motor neuron (MN) degeneration and cerebellar ataxia. Mouse induced pluripotent stem cell-derived MNs lacking LONRF2 showed reduced survival, shortening of neurites and accumulation of pTDP-43 and G3BP1 after long-term culture. The shortening of neurites in MNs from patients with amyotrophic lateral sclerosis is rescued by ectopic expression of LONRF2. Our findings reveal that LONRF2 is a protein quality control ligase whose loss may contribute to MN degeneration and motor deficits.
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Affiliation(s)
- Dan Li
- Division of Cancer Cell Biology, The University of Tokyo, Tokyo, Japan
| | - Yoshikazu Johmura
- Division of Cancer Cell Biology, The University of Tokyo, Tokyo, Japan.
- Division of Cancer and Senescence Biology, Cancer Research Institute, Institute for Frontier Science Initiative, Kanazawa University, Kanazawa, Japan.
| | - Satoru Morimoto
- Department of Physiology, Keio University School of Medicine, Tokyo, Japan
| | - Miyuki Doi
- Department of Neuroscience and Cell Biology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Keiko Nakanishi
- Department of Pediatrics, Central Hospital, and Department of Disease Model, Institute for Developmental Research, Aichi Developmental Disability Center, Kasugai, Japan
| | - Manabu Ozawa
- Laboratory of Reproductive Systems Biology, The University of Tokyo, Tokyo, Japan
| | - Yuji Tsunekawa
- Division of Molecular and Medical Genetics, Center for Gene and Cell Therapy, The University of Tokyo, Tokyo, Japan
| | | | - Hiroya Naruse
- Department of Neurology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Takashi Matsukawa
- Department of Neurology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yukio Takeshita
- Department of Neurology and Clinical Neuroscience, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Naoki Suzuki
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Masashi Aoki
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ayumi Nishiyama
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Xin Zeng
- Laboratory of Functional Analysis in silico, Human Genome Center, The University of Tokyo, Tokyo, Japan
| | - Chieko Konishi
- Division of Cancer Cell Biology, The University of Tokyo, Tokyo, Japan
| | - Narumi Suzuki
- Division of Cancer Cell Biology, The University of Tokyo, Tokyo, Japan
| | - Atsuya Nishiyama
- Division of Cancer Cell Biology, The University of Tokyo, Tokyo, Japan
| | | | - Mariko Morita
- Division of Clinical Genome Research, The University of Tokyo, Tokyo, Japan
| | - Kiyoshi Yamaguchi
- Division of Clinical Genome Research, The University of Tokyo, Tokyo, Japan
| | - Yoichi Furukawa
- Division of Clinical Genome Research, The University of Tokyo, Tokyo, Japan
| | - Kenta Nakai
- Laboratory of Functional Analysis in silico, Human Genome Center, The University of Tokyo, Tokyo, Japan
| | - Shoji Tsuji
- Department of Neurology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Satoshi Yamazaki
- Division of Stem Cell Biology, Center for Stem Cell Biology and Regenerative Medicine, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Laboratory of Stem Cell Therapy, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Yuji Yamanashi
- Division of Genetics, The University of Tokyo, Tokyo, Japan
| | - Shoichi Shimada
- Department of Neuroscience and Cell Biology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Takashi Okada
- Division of Molecular and Medical Genetics, Center for Gene and Cell Therapy, The University of Tokyo, Tokyo, Japan
| | - Hideyuki Okano
- Department of Physiology, Keio University School of Medicine, Tokyo, Japan
| | - Tatsushi Toda
- Department of Neurology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Makoto Nakanishi
- Division of Cancer Cell Biology, The University of Tokyo, Tokyo, Japan.
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24
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Kihara T, Kimura T, Saito M, Suzuki N, Hattori A, Kubota M. Three-Dimensional Analysis of the Windlass Mechanism Using Weightbearing Computed Tomography in Healthy Volunteers. Foot Ankle Int 2023; 44:545-553. [PMID: 36964668 DOI: 10.1177/10711007231161011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/26/2023]
Abstract
BACKGROUND The windlass mechanism (WM) increases the longitudinal arch of the foot via tension of the plantar aponeurosis during dorsiflexion of the metatarsophalangeal (MTP) joint. The purpose of this study was to perform a 3-dimensional evaluation of the displacement of each joint and the height of the navicular during dorsiflexion of the first MTP joint by using weightbearing computed tomography (CT). METHODS Participants were 6 men and 8 women with 23 healthy feet. CT of the foot with a load equivalent to the participant's body weight was performed. The first MTP joint was in the neutral position and dorsiflexed 30 degrees. Between the conditions, we measured the (1) rotation of each bone, (2) rotation of the distal bone with respect to the proximal bone at each joint, and (3) height of the navicular. RESULTS With respect to the tibia, the calcaneus was at 0.8 ± 0.7 degrees dorsiflexion and 1.4 ± 0.9 degrees inversion, while the talus was at 2.0 ± 1.2 degrees dorsiflexion and 0.1 ± 0.8 degrees eversion. The navicular was at 1.3 ± 1.2 degrees dorsiflexion and 3.2 ± 2.1 degrees inversion, whereas the medial cuneiform was at 0.3 ± 0.6 degrees plantarflexion and 1.3 ± 1.1 degrees inversion. At the talonavicular joint, the navicular was at 0.7 ± 1.3 degrees plantarflexion, whereas at the cuneonavicular joint, the medial cuneiform bone was at 1.4 ± 1.4 degrees plantarflexion. The height of the navicular increased by 1.1 ± 0.6 mm. CONCLUSION We 3-dimensionally confirmed the dynamics of WM and found that the calcaneus, navicular, and medial cuneiform moved in all 3 planes. The results suggest that the cuneonavicular joint has the greatest movement among the joints. We believe that these findings will help to elucidate the pathogenesis of WM-related diseases and lead to advances in treatments for pathologies involving the longitudinal arch. LEVEL OF EVIDENCE Level IV, case series.
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Affiliation(s)
- Takumi Kihara
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, Tokyo, Japan
- Institute for High Dimensional Medical Imaging, The Jikei University School of Medicine, Tokyo, Japan
| | - Tadashi Kimura
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, Tokyo, Japan
- Institute for High Dimensional Medical Imaging, The Jikei University School of Medicine, Tokyo, Japan
| | - Mitsuru Saito
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Naoki Suzuki
- Institute for High Dimensional Medical Imaging, The Jikei University School of Medicine, Tokyo, Japan
| | - Asaki Hattori
- Institute for High Dimensional Medical Imaging, The Jikei University School of Medicine, Tokyo, Japan
| | - Makoto Kubota
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, Tokyo, Japan
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25
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Morimoto S, Takahashi S, Ito D, Daté Y, Okada K, Kato C, Nakamura S, Ozawa F, Chyi CM, Nishiyama A, Suzuki N, Fujimori K, Kondo T, Takao M, Hirai M, Kabe Y, Suematsu M, Jinzaki M, Aoki M, Fujiki Y, Sato Y, Suzuki N, Nakahara J, Okano H. Phase 1/2a clinical trial in ALS with ropinirole, a drug candidate identified by iPSC drug discovery. Cell Stem Cell 2023; 30:766-780.e9. [PMID: 37267913 DOI: 10.1016/j.stem.2023.04.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 01/12/2023] [Accepted: 04/24/2023] [Indexed: 06/04/2023]
Abstract
iPSC-based drug discovery led to a phase 1/2a trial of ropinirole in ALS. 20 participants with sporadic ALS received ropinirole or placebo for 24 weeks in the double-blind period to evaluate safety, tolerability, and therapeutic effects. Adverse events were similar in both groups. During the double-blind period, muscle strength and daily activity were maintained, but a decline in the ALSFRS-R, which assesses the functional status of ALS patients, was not different from that in the placebo group. However, in the open-label extension period, the ropinirole group showed significant suppression of ALSFRS-R decline and an additional 27.9 weeks of disease-progression-free survival. iPSC-derived motor neurons from participants showed dopamine D2 receptor expression and a potential involvement of the SREBP2-cholesterol pathway in therapeutic effects. Lipid peroxide represents a clinical surrogate marker to assess disease progression and drug efficacy. Limitations include small sample sizes and high attrition rates in the open-label extension period, requiring further validation.
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Affiliation(s)
- Satoru Morimoto
- Department of Physiology, Keio University School of Medicine, Tokyo 160-8582, Japan; Department of Neurology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Shinichi Takahashi
- Department of Physiology, Keio University School of Medicine, Tokyo 160-8582, Japan; Department of Neurology, Keio University School of Medicine, Tokyo 160-8582, Japan; Department of Neurology and Stroke, Saitama Medical University International Medical Center, Saitama 350-1298, Japan
| | - Daisuke Ito
- Department of Physiology, Keio University School of Medicine, Tokyo 160-8582, Japan; Department of Neurology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Yugaku Daté
- Department of Neurology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Kensuke Okada
- Department of Neurology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Chris Kato
- Department of Physiology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Shiho Nakamura
- Department of Physiology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Fumiko Ozawa
- Department of Physiology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Chai Muh Chyi
- Department of Physiology, Keio University School of Medicine, Tokyo 160-8582, Japan; Keio University Global Research Institute, Tokyo 108-8345, Japan
| | - Ayumi Nishiyama
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Miyagi 980-8575, Japan
| | - Naoki Suzuki
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Miyagi 980-8575, Japan
| | - Koki Fujimori
- Department of Physiology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Tosho Kondo
- Research Center of Neurology, ONO Pharmaceutical Co., Ltd., Osaka 541-8564, Japan
| | - Masaki Takao
- Department of Clinical Laboratory, National Center of Neurology and Psychiatry (NCNP), Tokyo 187-0031, Japan; Department of Neurology, Mihara Memorial Hospital, Isesaki, Gunmma 372-0006, Japan
| | - Miwa Hirai
- Department of Biochemistry, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Yasuaki Kabe
- Department of Biochemistry, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Makoto Suematsu
- Department of Biochemistry, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Masahiro Jinzaki
- Department of Radiology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Masashi Aoki
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Miyagi 980-8575, Japan
| | - Yuto Fujiki
- Keio University Hospital Clinical and Translational Research Center, Tokyo 160-8582, Japan
| | - Yasunori Sato
- Department of Preventive Medicine and Public Health, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Norihiro Suzuki
- Department of Neurology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Jin Nakahara
- Department of Neurology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Hideyuki Okano
- Department of Physiology, Keio University School of Medicine, Tokyo 160-8582, Japan.
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Suzuki N, Mori-Yoshimura M, Katsuno M, Takahashi MP, Yamashita S, Oya Y, Hashizume A, Yamada S, Nakamori M, Izumi R, Kato M, Warita H, Tateyama M, Kuroda H, Asada R, Yamaguchi T, Nishino I, Aoki M. Phase II/III Study of Aceneuramic Acid Administration for GNE Myopathy in Japan. J Neuromuscul Dis 2023:JND230029. [PMID: 37125562 DOI: 10.3233/jnd-230029] [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] [Indexed: 05/02/2023]
Abstract
BACKGROUND GNE myopathy is an ultra-rare muscle disease characterized by a reduction in the synthesis of sialic acid derived from pathogenic variants in the GNE gene. No treatment has been established so far. OBJECTIVE We evaluated the safety and efficacy of oral supplementation of aceneuramic acid in patients with GNE myopathy. METHODS This multicenter, placebo-controlled, double-blind study comprised genetically confirmed GNE myopathy patients in Japan who were randomly assigned into treatment groups of sialic acid-extended release (SA-ER) tablets (6 g/day for 48 weeks) or placebo groups (4:1). The primary endpoint of effectiveness was set as the change in total upper limb muscle strength (upper extremity composite [UEC] score) from the start of administration to the final evaluation time point. RESULTS Among the 20 enrolled patients (SA-ER group, 16; placebo group, 4), 19 completed this 48-week study. The mean value of change in UEC score (95% confidence interval [CI]) at 48 weeks was -0.1 kg (-2.1 to 2.0) in the SA-ER group and -5.1 kg (-10.4 to 0.3) in the placebo group. The least squares mean difference (95% CI) between the groups in the covariance analysis was 4.8 kg (-0.3 to 9.9; P = 0.0635). The change in UEC score at 48 weeks was significantly higher in the SA-ER group compared with the placebo group (P = 0.0013) in the generalized estimating equation test repeated measurement analysis. In one patient in the SA-ER group, who was found to be pregnant 2 weeks after drug administration fetal death with tangled umbilical cord occurred at 13 weeks after the discontinuation of treatment. No other serious adverse effects were observed. CONCLUSIONS The present study indicates that oral administration of SA-ER tablets is effective and safe in patients with GNE myopathy in Japan.
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Affiliation(s)
- Naoki Suzuki
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Madoka Mori-Yoshimura
- Department of Neurology, National Center Hospital, National Center of Neurology and Psychiatry (NCNP), Tokyo, Japan
| | - Masahisa Katsuno
- Department of Neurology, Nagoya University Hospital, Nagoya, Japan
- Department of Clinical Research Education, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | | | - Satoshi Yamashita
- Department of Neurology, Kumamoto University Hospital, Kumamoto, Japan
| | - Yasushi Oya
- Department of Neurology, National Center Hospital, National Center of Neurology and Psychiatry (NCNP), Tokyo, Japan
| | - Atsushi Hashizume
- Department of Neurology, Nagoya University Hospital, Nagoya, Japan
- Department of Clinical Research Education, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | | | | | - Rumiko Izumi
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Masaaki Kato
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hitoshi Warita
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Maki Tateyama
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hiroshi Kuroda
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ryuta Asada
- Clinical Research Center, Gifu University Hospital, Gifu, Japan
| | - Takuhiro Yamaguchi
- Division of Biostatistics, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ichizo Nishino
- Department of Neuromuscular Research, National Institute of Neuroscience and Department of Genome Medicine Development, Medical Genome Center, National Center of Neurology and Psychiatry (NCNP), Tokyo, Japan
| | - Masashi Aoki
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
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Branchi M, Maresca G, Tsurumaki A, Suzuki N, Croce F, Panero S, Voje J, Aihara Y, Navarra MA. Silicon-Based Composite Anodes for All-Solid-State Lithium-Ion Batteries Conceived by a Mixture Design Approach. ChemSusChem 2023; 16:e202202235. [PMID: 36583704 DOI: 10.1002/cssc.202202235] [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] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/25/2022] [Indexed: 06/17/2023]
Abstract
Silicon-based anodes composed of micrometric Si, graphite (MAG), LiI-Li3 PS4 solid electrolyte (LPSI), and carbon nanofiber (CNF), which can be prepared by straightforward manual grinding, are proposed in this study. The relation between composition and performance of the anodes is investigated through the mixture design approach, which allows discrimination of the effect of each component and also the combined effect of the components on the end performance. By increasing the fraction of LPSI in the anode, the capacity of the electrode is improved, and the best performance is obtained when the Si/MAG/LPSI ratio is 15 : 15 : 70. This composite integrated with 5 wt % CNF exhibits a capacity above 1200 mAh g-1 throughout 50 cycles in a bulk-type all-solid-state battery with LPSI as the electrolyte. Scanning electron microscopy (SEM) confirms that the presence of LPSI suppresses the aggregation of Si and improves the ratio of Si available for lithiation/delithiation.
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Affiliation(s)
- Mario Branchi
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Giovanna Maresca
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Akiko Tsurumaki
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Naoki Suzuki
- Samsung R&D Institute Japan, Minoh Semba Center Bldg., 2-1-11, Semba Nishi, 562-0036, Minoh City, Osaka, Japan
| | - Fausto Croce
- Department of Pharmacy, University "G.D'Annunzio" Chieti-Pescara, Via dei Vestini 31, 66100, Chieti, Italy
| | - Stefania Panero
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Jorunn Voje
- Elkem ASA Silicon Products, Fiskaaveien 100, 8040 Vågsbygd, N-4675, Kristiansand, Norway
| | - Yuichi Aihara
- Samsung R&D Institute Japan, Minoh Semba Center Bldg., 2-1-11, Semba Nishi, 562-0036, Minoh City, Osaka, Japan
| | - Maria Assunta Navarra
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
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Suzuki N, Nishiyama A, Warita H, Aoki M. Genetics of amyotrophic lateral sclerosis: seeking therapeutic targets in the era of gene therapy. J Hum Genet 2023; 68:131-152. [PMID: 35691950 PMCID: PMC9968660 DOI: 10.1038/s10038-022-01055-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 05/17/2022] [Accepted: 05/29/2022] [Indexed: 12/12/2022]
Abstract
Amyotrophic lateral sclerosis (ALS) is an intractable disease that causes respiratory failure leading to mortality. The main locus of ALS is motor neurons. The success of antisense oligonucleotide (ASO) therapy in spinal muscular atrophy (SMA), a motor neuron disease, has triggered a paradigm shift in developing ALS therapies. The causative genes of ALS and disease-modifying genes, including those of sporadic ALS, have been identified one after another. Thus, the freedom of target choice for gene therapy has expanded by ASO strategy, leading to new avenues for therapeutic development. Tofersen for superoxide dismutase 1 (SOD1) was a pioneer in developing ASO for ALS. Improving protocols and devising early interventions for the disease are vital. In this review, we updated the knowledge of causative genes in ALS. We summarized the genetic mutations identified in familial ALS and their clinical features, focusing on SOD1, fused in sarcoma (FUS), and transacting response DNA-binding protein. The frequency of the C9ORF72 mutation is low in Japan, unlike in Europe and the United States, while SOD1 and FUS are more common, indicating that the target mutations for gene therapy vary by ethnicity. A genome-wide association study has revealed disease-modifying genes, which could be the novel target of gene therapy. The current status and prospects of gene therapy development were discussed, including ethical issues. Furthermore, we discussed the potential of axonal pathology as new therapeutic targets of ALS from the perspective of early intervention, including intra-axonal transcription factors, neuromuscular junction disconnection, dysregulated local translation, abnormal protein degradation, mitochondrial pathology, impaired axonal transport, aberrant cytoskeleton, and axon branching. We simultaneously discuss important pathological states of cell bodies: persistent stress granules, disrupted nucleocytoplasmic transport, and cryptic splicing. The development of gene therapy based on the elucidation of disease-modifying genes and early intervention in molecular pathology is expected to become an important therapeutic strategy in ALS.
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Affiliation(s)
- Naoki Suzuki
- Department of Neurology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Japan.
| | - Ayumi Nishiyama
- Department of Neurology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Japan
| | - Hitoshi Warita
- Department of Neurology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Japan
| | - Masashi Aoki
- Department of Neurology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Japan.
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Hayashi M, Shinozuka Y, Kurumisawa T, Yagisawa T, Suenaga N, Shimizu Y, Suzuki N, Kawai K. Effects of Intramammary Antimicrobial Treatment on the Milk Microbiota Composition in Mild Clinical Bovine Mastitis Caused by Gram-Positive Bacteria. Animals (Basel) 2023; 13:ani13040713. [PMID: 36830498 PMCID: PMC9952509 DOI: 10.3390/ani13040713] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 02/13/2023] [Accepted: 02/15/2023] [Indexed: 02/19/2023] Open
Abstract
The purpose of this study was to clarify the effects of antimicrobial treatment for mild mastitis caused by Gram-positive bacteria on the milk microbiota in dairy cattle. Sixteen quarters of sixteen cows with mild clinical mastitis from the same herd were included in the study. On the day of onset (day 0), the cows were randomly allocated to a no-treatment (NT; n = 10) group or an intramammary antimicrobial treatment (AMT) group that received AMT starting on day 0 (AMT-AMT group; n = 6). The next day (day 1), the cows in the NT group were randomly allocated into an NT group (NT-NT group; n = 3) that received no treatment or an AMT group that received AMT starting on day 1 (NT-AMT group; n = 7). Milk samples were collected on days 0, 1, 3 and 7, and the milk microbiota of each sample was comprehensively analyzed via 16S rRNA gene amplicon sequencing of the milk DNA. During the treatment period, the milk microbiota of the NT-NT group did not change, but those of the NT-AMT and AMT-AMT groups changed significantly on days three and seven. Thus, the use of antimicrobials for mild mastitis caused by Gram-positive bacteria changes the milk microbiota composition.
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Affiliation(s)
- Mayu Hayashi
- School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Sagamihara 252-5201, Japan
| | - Yasunori Shinozuka
- School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Sagamihara 252-5201, Japan
- Mastitis Research Center, Azabu University, 1-17-71 Fuchinobe, Sagamihara 252-5201, Japan
- Correspondence: ; Tel./Fax: +81-42-769-1641
| | - Tomomi Kurumisawa
- School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Sagamihara 252-5201, Japan
| | - Takuya Yagisawa
- Hokkaido Agriculture Mutual Aid Association, 4-1-1, Sapporo 060-0004, Japan
| | - Nagomu Suenaga
- School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Sagamihara 252-5201, Japan
| | - Yuko Shimizu
- School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Sagamihara 252-5201, Japan
| | - Naoki Suzuki
- Graduate School of Integrated Sciences for Life, Hiroshima University, 1-4-4 Kagamiyama, Higashi-Hiroshima 739-8528, Japan
| | - Kazuhiro Kawai
- School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Sagamihara 252-5201, Japan
- Mastitis Research Center, Azabu University, 1-17-71 Fuchinobe, Sagamihara 252-5201, Japan
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Takahashi T, Suzuki N, Ishii R, Toyoda S, Shibata M, Azuma Y, Kurose Y. Egg laying performance and egg quality with Paracoccus carotinifaciens supplementation containing high astaxanthin levels. Br Poult Sci 2023; 64:47-55. [PMID: 36129068 DOI: 10.1080/00071668.2022.2126933] [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] [Indexed: 11/02/2022]
Abstract
1. This study assessed 1) the effects of Paracoccus carotinifaciens supplementation containing high astaxanthin levels on egg production performance and quality, 2) dynamics of carotenoids levels in the egg yolk and 3) taste of astaxanthin-rich egg yolk.2. Laying hens were fed diets containing different levels of P. carotinifaciens-derived astaxanthin (ASX; 0, 2, 4, 8, or 16 ppm) for 28 d (experiment 1) or a diet containing 16 ppm astaxanthin for 28 d followed by a 0 ppm astaxanthin diet for 28 days (experiment 2).3. Production performance, egg quality and egg yolk carotenoid levels were examined in experiment 1 (Ex1) and the dynamics of egg yolk carotenoid levels and egg yolk taste in experiment 2 (Ex2).4. ASX supplementation did not affect production performance or egg quality. ASX levels in the egg yolk became saturated after seven days of 16 ppm supplementation and decreased to less than one-tenth of the saturated levels seven days after supplementation cessation. Supplementation with 16 ppm ASX for 28 d did not affect egg yolk taste.5. Supplementation resulted in the production of ASX-rich eggs for a brief period without affecting production performance, egg quality or taste. Understanding the time taken for the incorporation of ASX into egg yolks is beneficial for value-added egg production and may help in minimising supplementation costs.
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Affiliation(s)
- T Takahashi
- Laboratory of Animal Metabolism and Function, School of Veterinary Medicine, Kitasato University, Towada, Aomori, Japan
| | - N Suzuki
- Research and Development Department, Kanematsu Agritech Co. Ltd, Koshigaya, Saitama, Japan
| | - R Ishii
- Laboratory of Animal Metabolism and Function, School of Veterinary Medicine, Kitasato University, Towada, Aomori, Japan
| | - S Toyoda
- Laboratory of Animal Metabolism and Function, School of Veterinary Medicine, Kitasato University, Towada, Aomori, Japan
| | - M Shibata
- Laboratory of Animal Metabolism and Function, School of Veterinary Medicine, Kitasato University, Towada, Aomori, Japan
| | - Y Azuma
- Laboratory of Animal and Human Nutritional Physiology, School of Veterinary Medicine, Kitasato University, Towada, Aomori, Japan
| | - Y Kurose
- Laboratory of Animal Metabolism and Function, School of Veterinary Medicine, Kitasato University, Towada, Aomori, Japan
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Shijo T, Ikeda R, Suzuki N, Ohta J, Suzuki J, Hirano-Kawamoto A, Kato K, Ikeda K, Izumi R, Mitsuzawa S, Warita H, Kato M, Aoki M, Katori Y. Videofluoroscopic Dysphagia Scale as an Additional Indicator of Gastrostomy in Patients with Amyotrophic Lateral Sclerosis with Dysphagia. TOHOKU J EXP MED 2023; 259:293-300. [PMID: 36696983 DOI: 10.1620/tjem.2023.j005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Pseudobulbar palsy and bulbar palsy cause dysphagia in patients with amyotrophic lateral sclerosis (ALS). Dysphagia in patients with ALS not only increases the risk of aspiration and pneumonia but also leads to malnutrition and weight loss, which are poor prognostic factors. Gastrostomy is the preferred route of feeding and nutritional support in patients with dysphagia. However, there are no established standards to determine the ideal timing of gastrostomy for patients with ALS. Therefore, we used the videofluoroscopic dysphagia scale (VDS), which objectively quantifies swallowing function, in videofluoroscopic swallowing study (VFSS) to investigate whether this scale at diagnosis can be a useful predictor for the timing of gastrostomy. We retrospectively evaluated 22 patients with ALS who were diagnosed at our hospital. We assessed the VDS scores in all patients within 3 months of diagnosis. A decline in the ALS functional rating scale revised (ALSFRS-R) scores was used as an indicator of disease progression. As a result, we found that the VDS score of the pharyngeal phase and the total VDS score were significantly correlated with the ΔALSFRS-R scores. These scores were also associated with the existing indicators for the timing of gastrostomy, i.e., decreased body weight and percent-predicted forced vital capacity. We demonstrated the noninferiority of the VDS scores relative to the existing indicators. In addition, the VDS score of the pharyngeal phase was significantly correlated with the time from diagnosis to gastrostomy. The VDS score could estimate the timing of gastrostomy in patients with ALS with dysphagia at diagnosis.
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Affiliation(s)
- Tomomi Shijo
- Department of Neurology, Tohoku University Graduate School of Medicine
| | - Ryoukichi Ikeda
- Department of Otolaryngology-Head and Neck Surgery, Tohoku University Graduate School of Medicine
| | - Naoki Suzuki
- Department of Neurology, Tohoku University Graduate School of Medicine
| | - Jun Ohta
- Department of Otolaryngology-Head and Neck Surgery, Tohoku University Graduate School of Medicine
| | - Jun Suzuki
- Department of Otolaryngology-Head and Neck Surgery, Tohoku University Graduate School of Medicine
| | - Ai Hirano-Kawamoto
- Department of Otolaryngology-Head and Neck Surgery, Tohoku University Graduate School of Medicine
| | - Kengo Kato
- Department of Otolaryngology-Head and Neck Surgery, Tohoku University Graduate School of Medicine
| | - Kensuke Ikeda
- Department of Neurology, Tohoku University Graduate School of Medicine
| | - Rumiko Izumi
- Department of Neurology, Tohoku University Graduate School of Medicine
| | - Shio Mitsuzawa
- Department of Neurology, Shodo-kai Southern Tohoku General Hospital
| | - Hitoshi Warita
- Department of Neurology, Tohoku University Graduate School of Medicine
| | - Masaaki Kato
- Department of Neurology, Shodo-kai Southern Tohoku General Hospital
| | - Masashi Aoki
- Department of Neurology, Tohoku University Graduate School of Medicine
| | - Yukio Katori
- Department of Otolaryngology-Head and Neck Surgery, Tohoku University Graduate School of Medicine
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Ohno R, Suzuki N, Tsugami Y, Nii T, Kobayashi K, Isobe N. Menthol application on healthy and inflamed goat udders changes antimicrobial components in milk. Anim Sci J 2023; 94:e13832. [PMID: 36991576 DOI: 10.1111/asj.13832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/01/2023] [Accepted: 03/09/2023] [Indexed: 03/31/2023]
Abstract
Mammary glands with mastitis are usually treated with antibiotics in combination with anti-inflammatory drug application on the udder skin. Menthol is an anti-inflammatory drug. The aim of the present study was to investigate the effect of surface application of menthol on goat udders on the production of antimicrobial components in milk. Goats (5 Shiba and 11 Tokara goats) were subjected to menthol application to the udder under both healthy and inflammatory conditions. An intramammary infusion of lipopolysaccharides was carried out to induce inflammatory conditions in the udder. Milk samples were collected to determine somatic cell count (SCC) and sodium ion (Na+ ), antimicrobial component and cytokine concentrations. In healthy udders, menthol application increased the concentration of antimicrobial components (S100A7 and S100A8), but not in the control. In the inflamed udder, antimicrobial component (lactoferrin, S100A7, and S100A8) and inflammatory cytokine (IL-1β) concentrations were higher in the menthol group than in the control group. These results suggest that menthol application on udders augments the antimicrobial component concentration in the mammary gland under both healthy and inflammatory conditions.
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Affiliation(s)
- Ruri Ohno
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Japan
| | - Naoki Suzuki
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Japan
- Research Center for Animal Science, Hiroshima University, Higashi-Hiroshima, Japan
| | - Yusaku Tsugami
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Japan
- Research Center for Animal Science, Hiroshima University, Higashi-Hiroshima, Japan
| | - Takahiro Nii
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Japan
- Research Center for Animal Science, Hiroshima University, Higashi-Hiroshima, Japan
| | - Ken Kobayashi
- Graduate School of Agriculture, Hokkaido University, Sapporo, Japan
| | - Naoki Isobe
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Japan
- Research Center for Animal Science, Hiroshima University, Higashi-Hiroshima, Japan
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Ohisa N, Suzuki N, Mohri S. Making sugar-free bread with wheat flour and halotolerant <i>Hyphopichia burtonii</i>-enriched culture. FSTR 2023. [DOI: 10.3136/fstr.fstr-d-22-00163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Jaisue J, Nii T, Suzuki N, Tsugami Y, Isobe N. Effect of repeated intrauterine infusion of lipopolysaccharides on mastitis in goats. Theriogenology 2022; 193:87-92. [PMID: 36156428 DOI: 10.1016/j.theriogenology.2022.09.009] [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: 06/01/2022] [Revised: 09/07/2022] [Accepted: 09/10/2022] [Indexed: 10/31/2022]
Abstract
A single infusion of lipopolysaccharide (LPSs) into the uterus induces inflammation in the mammary gland. This indicates that LPS can translocate from the uterus to the mammary gland. Natural endometritis is characterized by continuous intrauterine inflammation. The aim of the present study was to determine the effect of repeated intrauterine infusion of two different types of LPSs obtained from Escherichia coli O111:B4 (LPS-O111) and O55:B5 (LPS-O55) on the inflammatory status of the mammary glands of goats. Goats were assigned to three groups: LPS-O111, LPS-O55, and saline (control). Saline with (LPS-O111 and 55 groups) and without (control) 100 μg LPS was infused into the uterus continuously for 7 days. Decreased milk yield was detected in both LPS-O111 and LPS-O55 groups 2 days after the first LPS infusion. While somatic cell count (SCC) was significantly increased in all groups 1 day after the first LPS infusion, both LPS infusions further increased SCC 2 days after the first infusion and showed a significantly higher SCC than that in the control group. Plasma LPS-binding protein (LBP) was significantly higher in both LPS groups than in the control group during the days after infusion. In addition, pro-inflammatory cytokines, interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α), and IL-8, were significantly increased in both LPS infusion groups compared with those in the control group. The LPS-O111 infusion resulted in higher SCC, LBP, TNF-α, and IL-8 concentrations than those in the LPS-O55 group. These results suggest that repeated LPS infusion into the uterus can induce more severe mammary gland inflammation than a single infusion. Interestingly, the mammary tissues recovered from inflammation even though the LPS intrauterine infusion was continued.
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Affiliation(s)
- Jirapat Jaisue
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8528, Japan
| | - Takahiro Nii
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8528, Japan
| | - Naoki Suzuki
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8528, Japan
| | - Yusaku Tsugami
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8528, Japan
| | - Naoki Isobe
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8528, Japan.
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Purba FY, Ishimoto Y, Nii T, Suzuki N, Isobe N. Effect of temporary cessation of milking and estradiol combination on the antimicrobial components in goat milk. Res Vet Sci 2022; 152:387-394. [PMID: 36108551 DOI: 10.1016/j.rvsc.2022.09.006] [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: 07/07/2022] [Revised: 08/23/2022] [Accepted: 09/01/2022] [Indexed: 11/17/2022]
Abstract
A temporary cessation of milking is widely used in Japan to treat mastitis in dairy cows. Exogenous administration of estradiol (E2) is known to inhibit milk production in dairy cows. Therefore, we aimed to evaluate the effects of the temporary cessation of milking in combination with E2 administration on the antimicrobial components of goat milk. Twelve goats, divided into two groups-with and without E2 injection (E2 and control group, respectively), were subjected to cessation of milking in both udder halves for 3 d (day 0-2). Milk yield in the E2 group was significantly lower than that in the control group on days 7 to 10. The concentrations of cathelicidin-2, IgA, and lactoferrin in the E2 group were significantly higher than those in the control group. These results suggest that the temporary cessation of milking with simultaneous E2 administration leads to a higher concentration of certain antimicrobial components in milk than that observed after using cessation of milking alone. Thus, this combination may contribute to a stronger innate immune system and a faster recovery from mastitis, and might prove to be an alternative to antibiotic treatment upon further research.
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Affiliation(s)
- Fika Yuliza Purba
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima 739-8528, Japan; Veterinary Medicine Study Program, Faculty of Medicine, Hasanuddin University, Makassar 90245, Indonesia
| | - Yoshihisa Ishimoto
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima 739-8528, Japan
| | - Takahiro Nii
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima 739-8528, Japan
| | - Naoki Suzuki
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima 739-8528, Japan
| | - Naoki Isobe
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima 739-8528, Japan.
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Woopen H, Sehouli J, Davis A, Lee Y, Cohen P, Ferrero A, Gleeson N, Jhingran A, Kajimoto Y, Mayadev J, Barretina-Ginesta M, Sundar S, Suzuki N, van Dorst E, Joly F. Erratum to “GCIG-Consensus guideline for long-term survivorship in gynecologic cancer: A position paper from the Gynecologic Cancer InterGroup (GCIG) symptom benefit committee” [Cancer Treatm. Rev. 107 (2022) 102396]. Cancer Treat Rev 2022; 109:102431. [DOI: 10.1016/j.ctrv.2022.102431] [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: 11/26/2022]
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Suzuki N, Ikeda Y, Ono M, Ohmori G, Maeda M. Gastrointestinal: Immune-related sclerosing cholangitis with pembrolizumab: Imaging and histological features. J Gastroenterol Hepatol 2022; 37:1652. [PMID: 35226968 DOI: 10.1111/jgh.15797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 01/12/2022] [Indexed: 12/09/2022]
Affiliation(s)
- N Suzuki
- Department of Gastroenterology, Steel Memorial Muroran Hospital, Muroran, Japan
| | - Y Ikeda
- Department of Gastroenterology, Steel Memorial Muroran Hospital, Muroran, Japan
| | - M Ono
- Department of Gastroenterology, Steel Memorial Muroran Hospital, Muroran, Japan
| | - G Ohmori
- Department of Gastroenterology, Steel Memorial Muroran Hospital, Muroran, Japan
| | - M Maeda
- Department of Gastroenterology, Steel Memorial Muroran Hospital, Muroran, Japan
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Iwama R, Nagai H, Suzuki N, Izumi R, Kumamoto H, Takahashi T. A case of giant dental calculus in a patient with centronuclear myopathy. Spec Care Dentist 2022. [PMID: 36031707 DOI: 10.1111/scd.12772] [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: 04/17/2022] [Revised: 07/09/2022] [Accepted: 08/09/2022] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Centronuclear myopathy is a hereditary congenital muscle disease. It is characterized by generalized muscle hypotonia from early childhood, elongated cacial appearance, mandibular undergroth, and dental malposition. In this report, we discuss the clinical course and management of a patient with centronuclearmyopathy, who developed a giant dental calculus in the floor of the mouth and underwent surgical excision. CASE REPORT A 37-year-old Japanese man was referred to our hospital, and reported a swelling in the floor of the mouth. The patient affects centronuclear myopathy and has generalized muscle weakness. CT images showed a high-density area in the floor of the mouth measuring 35 × 28 × 20 mm. The lesion was clinically diagnosed as giant dental calculus, and surgically removed. CONCLUSION We have experienced a case of giant dental calculus in a patient with centronuclear myopathy. In dental treatment, we must consider generalized muscle weakness.
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Affiliation(s)
- Ryosuke Iwama
- Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Hirokazu Nagai
- Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Naoki Suzuki
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Rumiko Izumi
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hiroyuki Kumamoto
- Division of Oral Pathology, Graduate School of Dentistry, Tohoku University, Sendai, Japan
| | - Tetsu Takahashi
- Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan
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Tsugami Y, Nakayama S, Suzuki N, Nii T, Isobe N. Investigating mammary glands of lactating goats for the presence of tertiary lymphoid organs. Front Immunol 2022; 13:941333. [PMID: 36032165 PMCID: PMC9399771 DOI: 10.3389/fimmu.2022.941333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 07/22/2022] [Indexed: 11/22/2022] Open
Abstract
Ectopic tertiary lymphoid organs (TLOs) have been identified in many organs, such as the lungs, nasal cavities, and kidneys of both mice and humans. Although lymphocyte aggregates have been observed in the mammary glands of ruminants, the details remain unclear. In this study, we investigated the mammary glands of lactating goats for the presence of TLOs. The localization of CD20 (B cells), CD3 (T cells), MECA79 (high endothelial venules), CD40 (follicular dendritic cells), BCL6 (germinal center), and IgA was examined by immunohistochemistry. The concentrations of IgG, IgA, lactoferrin, β-defensin-1, cathelicidin-2, cathelicidin-7, S100A7, and S100A8 in milk were measured by ELISA. The localization and amount of tight junction (TJ) proteins (claudin-3 and claudin-4) were examined using immunofluorescence and western blotting. We found that 19 out of 30 udders contained lymphocyte aggregates, which showed positive reactions against CD20, CD3, CD40, and MECA79. In addition, large-sized aggregations showed separate localization of B cells and T cells and a positive reaction against BCL6, although BCL6 was sparsely localized in the aggregations. These results indicate that mammary glands of lactating goats contain TLOs. The IgG and IgA concentrations in the milk of TLO-positive goats and the number of IgA-positive cells were higher than those in negative goats. Furthermore, claudin-4 was localized in the TJ region and the amount was higher in TLO-positive mammary glands than that in the negative group, indicating the presence of leakages at TJs. In conclusion, a majority of lactating goat udders have TLOs, which contribute to local immunity by producing immunoglobulins.
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Tsuge S, Fujii H, Tamai M, Mizushima I, Yoshida M, Suzuki N, Takahashi Y, Takeji A, Horita S, Fujisawa Y, Matsunaga T, Zoshima T, Nishioka R, Nuka H, Hara S, Tani Y, Suzuki Y, Ito K, Yamada K, Nakazaki S, Kawakami A, Kawano M. POS1339 FACTORS RELATED TO SERUM IgG4 ELEVATION AND DEVELOPMENT OF IgG4-RELATED DISEASE: DATA FROM RESIDENT EXAMINATION. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.2028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BackgroundElevated serum IgG4 levels are one of the characteristic findings in immunoglobulin G4 (IgG4)-related disease (IgG4-RD). Serum IgG4 levels have an impact to a certain extent on the diagnosis of IgG4-RD although there are some issues in their sensitivity and specificity. In the reports from Japan, China, USA, and Europe, elevated serum IgG4 levels were reported to be observed in 83-97% of patients with IgG4-RD [1-5]. In the past investigations of hospital patients, some studies reported that 10-15% of hospital patients with elevated serum IgG4 levels had IgG4-RD [6,7]. However, in general adults with no symptom, investigations of prevalence of elevated serum IgG4 levels and/or IgG4-RD have rarely been conducted.ObjectivesThis study aimed to investigate the frequency of serum IgG4 elevation in the general Japanese population and its associated factors using data from resident examinations.MethodsWe measured the serum IgG4 levels in 1,204 residents who underwent a general medical examination in Ishikawa prefecture, Japan. Logistic regression analysis was used to search for factors related to elevated serum IgG4 levels. Secondary examinations were conducted for participants in whom elevation was identified.ResultsThe mean serum IgG4 level was 44 mg/dL, and elevated serum IgG4 levels were observed in 42 patients (3.5%). Univariate logistic regression analyses showed that male sex, older age, lower estimated glomerular filtration rates based on cystatin C (eGFR-CysC), serum high-density lipoprotein cholesterol levels, and higher hemoglobin A1c (HbA1c) levels were associated with elevated serum IgG4 levels. Subgroup analyses in men showed that older age, lower eGFR-CysC levels, and higher serum HbA1c levels were associated with elevated serum IgG4 levels. In contrast, the analyses in women found no significant factors. One of the 10 residents who underwent secondary examinations was diagnosed with possible IgG4-related retroperitoneal fibrosis.ConclusionIn the general population, elevated serum IgG4 levels are more common in elderly men, which is similar to the epidemiological features of IgG4-RD.References[1]Inoue D, et al. IgG4-related disease: dataset of 235 consecutive patients. Medicine (Baltimore). 2015;94(15):e680.[2]Yamada K, et al. New clues to the nature of immunoglobulin G4-related disease: a retrospective Japanese multicenter study of baseline clinical features of 334 cases. Arthritis Res Ther. 2017;19(1):262[3]Culver EL, et al. Elevated serum IgG4 levels in diagnosis, treatment response, organ involvement, and relapse in a prospective IgG4-related disease UK cohort. Am J Gastroenterol 2016;111:733–43.[4]Lin W, et al. Clinical characteristics of immunoglobulin G4-related disease: a prospective study of 118 Chinese patients. Rheumatology (Oxford). 2015;54(11):1982–90.[5]Carruthers MN, et al. The diagnostic utility of serum IgG4 concentrations in IgG4-related disease. Ann Rheum Dis 2015;74:14-18.[6]James Yun, et al. Poor positive predictive value of serum immunoglobulin G4 concentrations in the diagnosis of immunoglobulin G4-related sclerosing disease. Asia Pac Allergy. 2014 Jul;4(3):172-176.[7]Taiwo N Ngwa, et al. Sreum immunoglobulin G4 level is a poor predictor of immunoglobulin G4–related disease. Pancreas. 2014 Jul;43(5):704-7.Disclosure of InterestsNone declared
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Suzuki N, Cintra FF, Cintra ML, Maciel MG, Amstalden E, Teixeira F, Kubba F. "A case of vanishing bone disease complicated by chylothorax- diagnosis and treatment". JRSM Open 2022; 13:20542704221103912. [PMID: 35774987 PMCID: PMC9237928 DOI: 10.1177/20542704221103912] [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] [Indexed: 11/17/2022] Open
Abstract
A 16-year old girl with Gorham-Stout disease is presented. She had progressive replacement of the bones of her left arm and shoulder girdle by fibroadipose tissue and numerous proliferated, non-neoplastic, lymphatic channels. The clinico-pathologic features of this condition are discussed, as are its possible complications and available therapeutic modalities.
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Affiliation(s)
- N Suzuki
- Department of Dermatology, Medical Sciences School, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - F F Cintra
- Department of Orthopedics, Medical Sciences School, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - M L Cintra
- Department of Pathology, Medical Sciences School, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - M G Maciel
- Department of Dermatology, Medical Sciences School, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Emi Amstalden
- Department of Pathology, Medical Sciences School, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - F Teixeira
- Department of Pathology, Medical Sciences School, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - F Kubba
- Department of Pathology, London Northwest University Healthcare NHS Trust, UK
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Yamauchi M, Ono A, Amioka K, Fujii Y, Uchikawa S, Fujino H, Nakahara T, Murakami E, Okamoto W, Kawaoka T, Miki D, Tsuge M, Imamura M, Nelson H, Kato Y, Kimura M, Suzuki N, Aikata H, Chayama K. P-141 Lenvatinib activates potential anti-tumor immunity by increasing infiltration of immune cells and interferon response in tumor microenvironment of advanced hepatocellular carcinoma. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.231] [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: 11/01/2022] Open
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Tsugami Y, Suzuki N, Nii T, Isobe N. Sodium Acetate and Sodium Butyrate Differentially Upregulate Antimicrobial Component Production in Mammary Glands of Lactating Goats. J Mammary Gland Biol Neoplasia 2022; 27:133-144. [PMID: 35678903 DOI: 10.1007/s10911-022-09519-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 05/10/2022] [Accepted: 05/11/2022] [Indexed: 10/18/2022] Open
Abstract
Short-chain fatty acids activate antimicrobial component production in the intestine. However, their effects on mammary glands remain unclear. We investigated the effects of acetate and butyrate on antimicrobial component production in mammary epithelial cells (MECs) or leukocytes cultured in vitro and in mammary glands of lactating Tokara goats in vivo. Our results showed that butyrate enhanced the production of β-defensin-1 and S100A7 in MECs. Additionally, the infusion of butyrate into mammary glands through the teats enhanced β-defensin-1 and S100A7 concentrations in milk. The infusion of acetate also increased β-defensin-1 and S100A7 concentrations along with those of cathelicidin-2 and interleukin-8, which are produced by leukocytes. Furthermore, acetate promoted cathelicidin-2 and interleukin-8 secretion in leukocytes in vitro. These findings suggest that acetate and butyrate differentially upregulate antimicrobial component production in mammary glands, which could help to develop appropriate treatment for mastitis, thereby reducing economic losses and improving animal welfare in farming environments.
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Affiliation(s)
- Yusaku Tsugami
- Graduate School of Integrated Sciences for Life, Hiroshima University, 1-4-4 Kagamiyama Higashi-Hiroshima, 739-8528, Hiroshima, Japan
| | - Naoki Suzuki
- Graduate School of Integrated Sciences for Life, Hiroshima University, 1-4-4 Kagamiyama Higashi-Hiroshima, 739-8528, Hiroshima, Japan
| | - Takahiro Nii
- Graduate School of Integrated Sciences for Life, Hiroshima University, 1-4-4 Kagamiyama Higashi-Hiroshima, 739-8528, Hiroshima, Japan
| | - Naoki Isobe
- Graduate School of Integrated Sciences for Life, Hiroshima University, 1-4-4 Kagamiyama Higashi-Hiroshima, 739-8528, Hiroshima, Japan.
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Tsugami Y, Harada R, Nii T, Suzuki N, Isobe N. Effects of frequent teat stimulation on antimicrobial component production in mammary glands of lactating goats. Vet Immunol Immunopathol 2022; 249:110431. [DOI: 10.1016/j.vetimm.2022.110431] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 04/29/2022] [Accepted: 05/02/2022] [Indexed: 10/18/2022]
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Ishigakii K, Ikeda R, Suzuki J, Hirano-Kawamoto A, Ohta J, Kato K, Izumi R, Suzuki N, Aoki M, Kawase T, Katori Y. Patulous Eustachian Tube Patients With Oculopharyngeal Muscular Dystrophy. Otol Neurotol 2022; 43:e442-e445. [PMID: 35120077 DOI: 10.1097/mao.0000000000003494] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES To describe cases of patulous Eustachian tube (PET) or patent ET conditions in oculopharyngeal muscular dystrophy (OPMD). PATIENTS Four cases of PET or patent ET conditions with OPMD. MAIN OUTCOME MEASURES Clinical case records, objective ET function tests (tubo-tympano-aerodynamic graphy and sonotubometry), and swallowing function (videoendoscopic examination and Food Intake Level Scale) were analyzed. RESULTS Two cases of definite PET, one case of possible PET, and one case lacking aural symptoms with findings of patent ET. All patients have ptosis, and three cases have dysphagia. Body mass index indicated that three cases were underweight. Magnetic resonance imaging in case 4 showed atrophy and fat replacement of palatine and masticatory muscles. CONCLUSIONS It is important to consider PET or patent ET conditions when OPMD patients describe aural symptoms.
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Affiliation(s)
- Kento Ishigakii
- Department of Otolaryngology-Head and Neck Surgery, Tohoku University School of Medicine, Sendai
| | - Ryoukichi Ikeda
- Department of Otolaryngology-Head and Neck Surgery, Tohoku University School of Medicine, Sendai
- Sen-En Rifu Otological Surgery Center, Miyagi
| | - Jun Suzuki
- Department of Otolaryngology-Head and Neck Surgery, Tohoku University School of Medicine, Sendai
| | - Ai Hirano-Kawamoto
- Department of Otolaryngology-Head and Neck Surgery, Tohoku University School of Medicine, Sendai
| | - Jun Ohta
- Department of Otolaryngology-Head and Neck Surgery, Tohoku University School of Medicine, Sendai
| | - Kengo Kato
- Department of Otolaryngology-Head and Neck Surgery, Tohoku University School of Medicine, Sendai
| | - Rumiko Izumi
- Department of Neurology, Tohoku University Graduate School of Medicine, Aoba-ku, Sendai, Japan
| | - Naoki Suzuki
- Department of Neurology, Tohoku University Graduate School of Medicine, Aoba-ku, Sendai, Japan
| | - Masashi Aoki
- Department of Neurology, Tohoku University Graduate School of Medicine, Aoba-ku, Sendai, Japan
| | - Tetsuaki Kawase
- Department of Otolaryngology-Head and Neck Surgery, Tohoku University School of Medicine, Sendai
| | - Yukio Katori
- Department of Otolaryngology-Head and Neck Surgery, Tohoku University School of Medicine, Sendai
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Kakinoki Y, Yamada K, Tanino Y, Suzuki K, Ichikawa T, Suzuki N, Asari G, Nakamura A, Kukita S, Uehara A, Saito S, Kuroda S, Sakagami H, Nagashima Y, Takahashi K, Suzuki S. Impact of Antibody Cocktail Therapy Combined with Casirivimab and Imdevimab on Clinical Outcome for Covid-19 patients in A Real-Life Setting: A Single Institute Analysis. Int J Infect Dis 2022; 117:189-194. [PMID: 35176486 PMCID: PMC8843326 DOI: 10.1016/j.ijid.2022.01.067] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/18/2022] [Accepted: 01/30/2022] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Recent data from clinical trials suggest that antibody cocktail therapy with casirivimab and imdevimab is linked to reduction of the risk of hospitalization or death among high-risk patients with coronavirus disease 2019. However, it remains unclear how effective in a real-life clinical practice the therapy is. METHODS We retrospectively analyzed Covid-19 patients with high-risk factors who underwent the antibody cocktail therapy, compared to those who were not given the cocktail therapy while being isolated in non-medical facilities during the same period. RESULTS Data from 55 patients with receiving antibody cocktail therapy and 53 patients with initial isolation into non-medical facilities were analyzed. 22 (41.5 %) of 53 patients with isolation facilities were finally hospitalized to receive medical interventions. By contrast, 13 (23.6 %) of 55 patients with antibody cocktail therapy subsequently underwent further medical interventions. In multivariate analysis, the antibody cocktail therapy significantly reduced 70 % in need for further medical interventions compared with the isolation (odds ratio=0.30, 95%CI [0.10-0.87], p=0.027). Patients with 96% or above of Percutaneous oxygen saturation were significantly more favorable for the therapy. CONCLUSION The result indicates that the antibody cocktail therapy is associated with reducing the burdens on hospitals in Covid-19 pandemic era.
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Affiliation(s)
- Yasutaka Kakinoki
- Division of Internal Medicine, Asahikawa City Hospital, Asahikawa, Japan.
| | - Kazuki Yamada
- Division of Internal Medicine, Asahikawa City Hospital, Asahikawa, Japan
| | - Yoko Tanino
- Division of Internal Medicine, Asahikawa City Hospital, Asahikawa, Japan
| | - Keiko Suzuki
- Division of Internal Medicine, Asahikawa City Hospital, Asahikawa, Japan
| | - Takaya Ichikawa
- Division of Internal Medicine, Asahikawa City Hospital, Asahikawa, Japan
| | | | - Go Asari
- Asahikawa City Health Center, Asahikawa, Japan
| | - Ai Nakamura
- Division of Internal Medicine, Asahikawa City Hospital, Asahikawa, Japan
| | - Shin Kukita
- Division of Internal Medicine, Asahikawa City Hospital, Asahikawa, Japan
| | - Akito Uehara
- Division of Internal Medicine, Asahikawa City Hospital, Asahikawa, Japan
| | - Seisuke Saito
- Division of Internal Medicine, Asahikawa City Hospital, Asahikawa, Japan
| | - Shohei Kuroda
- Division of Internal Medicine, Asahikawa City Hospital, Asahikawa, Japan
| | - Hidemitsu Sakagami
- Division of Internal Medicine, Asahikawa City Hospital, Asahikawa, Japan
| | - Yuuki Nagashima
- Division of Internal Medicine, Asahikawa City Hospital, Asahikawa, Japan
| | - Kae Takahashi
- Division of Internal Medicine, Asahikawa City Hospital, Asahikawa, Japan
| | - Satoshi Suzuki
- Division of Internal Medicine, Asahikawa City Hospital, Asahikawa, Japan
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Abstract
This study aimed to determine whether causative pathogens in mastitic milk can be determined by Gram staining after the centrifugation of milk. Gram staining was performed using
unconcentrated and concentrated milk cells. Using this method, we found that the background of microscopic image of unconcentrated milk cells was complex and bacteria were difficult to
detect. In contrast, the background of the smears in the concentrated milk cells was translucent, and bacterial and somatic cells were clearly visible. The sensitivity and specificity of the
Gram staining of concentrated milk cells were 84.4% and 86.0% and 50.0% and 94.5% for the detection of gram-positive and gram-negative bacteria, respectively. The presented method provides a
simple and inexpensive means of determining mastitis-causing pathogens.
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Affiliation(s)
- Naoki Suzuki
- Graduate School of Integrated Sciences for Life, Hiroshima University
| | | | - Naoki Isobe
- Graduate School of Integrated Sciences for Life, Hiroshima University
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Li Y, Chen W, Ogawa K, Koide M, Takahashi T, Hagiwara Y, Itoi E, Aizawa T, Tsuchiya M, Izumi R, Suzuki N, Aoki M, Kanzaki M. Feeder-supported in vitro exercise model using human satellite cells from patients with sporadic inclusion body myositis. Sci Rep 2022; 12:1082. [PMID: 35058512 PMCID: PMC8776910 DOI: 10.1038/s41598-022-05029-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 01/05/2022] [Indexed: 11/27/2022] Open
Abstract
Contractile activity is a fundamental property of skeletal muscles. We describe the establishment of a “feeder-supported in vitro exercise model” using human-origin primary satellite cells, allowing highly-developed contractile myotubes to readily be generated by applying electrical pulse stimulation (EPS). The use of murine fibroblasts as the feeder cells allows biological responses to EPS in contractile human myotubes to be selectively evaluated with species-specific analyses such as RT-PCR. We successfully applied this feeder-supported co-culture system to myotubes derived from primary satellite cells obtained from sporadic inclusion body myositis (sIBM) patients who are incapable of strenuous exercise testing. Our results demonstrated that sIBM myotubes possess essentially normal muscle functions, including contractility development, de novo sarcomere formation, and contraction-dependent myokine upregulation, upon EPS treatment. However, we found that some of sIBM myotubes, but not healthy control myotubes, often exhibit abnormal cytoplasmic TDP-43 accumulation upon EPS-evoked contraction, suggesting potential pathogenic involvement of the contraction-inducible TDP-43 distribution peculiar to sIBM. Thus, our “feeder-supported in vitro exercise model” enables us to obtain contractile human-origin myotubes, potentially utilizable for evaluating exercise-dependent intrinsic and pathogenic properties of patient muscle cells. Our approach, using feeder layers, further expands the usefulness of the “in vitro exercise model”.
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Affiliation(s)
- Yuqing Li
- Department of Orthopaedic Surgery, Graduate School of Medicine, Tohoku University, Sendai, Japan.,Graduate School of Biomedical Engineering, Tohoku University, 6-6-04-110, Aramaki, Aoba-ku, Sendai, 980-8579, Japan
| | - Weijian Chen
- Graduate School of Biomedical Engineering, Tohoku University, 6-6-04-110, Aramaki, Aoba-ku, Sendai, 980-8579, Japan
| | - Kazumi Ogawa
- Department of Orthopaedic Surgery, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Masashi Koide
- Department of Orthopaedic Surgery, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Tadahisa Takahashi
- Department of Orthopaedic Surgery, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Yoshihiro Hagiwara
- Department of Orthopaedic Surgery, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Eiji Itoi
- Department of Orthopaedic Surgery, Graduate School of Medicine, Tohoku University, Sendai, Japan.,Department of Orthopaedic Surgery, Tohoku Rosai Hospital, Sendai, Japan
| | - Toshimi Aizawa
- Department of Orthopaedic Surgery, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | | | - Rumiko Izumi
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Naoki Suzuki
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Masashi Aoki
- Department of Neurology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Makoto Kanzaki
- Graduate School of Biomedical Engineering, Tohoku University, 6-6-04-110, Aramaki, Aoba-ku, Sendai, 980-8579, Japan.
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Shinozuka Y, Suzuki N, Kaneko S, Kawai K, Kurumisawa T, Shimizu Y, Imanishi T, Ohno A, Takahashi M, Isobe N. Regression tree analysis of the relationship between the concentrations of antimicrobial components and the microbiota of normal milk from dairy cows. J Vet Med Sci 2022; 84:310-318. [PMID: 35046240 PMCID: PMC8983300 DOI: 10.1292/jvms.21-0541] [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] [Indexed: 11/22/2022] Open
Abstract
The purpose of this study was to determine the concentrations of antimicrobial components (immunoglobulin A (IgA), lactoferrin (LF), lingual antimicrobial peptide (LAP), and S100A7) in normal milk and their relation to host factors (Age, somatic cell count (SCC), days in milk, richness, and alpha diversity of the milk microbiota) in dairy cows using multivariate regression tree analyses, and to clarify how the milk microbiota is related to the obtained results. Thirty normal milk samples were collected from a commercial dairy farm in June 2020. The thresholds that predicted the concentration of each antimicrobial component in milk were obtained by regression tree analysis, and the beta-diversity of the milk microbiota composition between groups divided according to each threshold was compared by an analysis of similarities test. The IgA and LF concentrations were mainly predicted by the SCC (177,500 and 70,000 cells/ml, respectively), and the LAP and S100A7 concentrations were predicted by Age (29.667 and 40.3 months, respectively). No relationship was observed between the concentration of IgA, LAP, or S100A7 and the milk microbiota composition between the groups divided by the threshold for prediction, but the milk microbiota composition was significantly different between the groups divided by the threshold for predicting the LF concentration. Our results indicated that the LF concentration in normal milk may be associated with the milk microbiota composition.
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Affiliation(s)
- Yasunori Shinozuka
- School of Veterinary Medicine, Azabu University.,Azabu University Mastitis Research Center
| | - Naoki Suzuki
- Graduate School of Integrated Sciences for Life, Hiroshima University
| | | | - Kazuhiro Kawai
- School of Veterinary Medicine, Azabu University.,Azabu University Mastitis Research Center
| | - Tomomi Kurumisawa
- School of Veterinary Medicine, Azabu University.,Azabu University Mastitis Research Center
| | | | - Tadashi Imanishi
- Department of Molecular Life Science, Tokai University School of Medicine
| | - Ayumu Ohno
- Department of Molecular Life Science, Tokai University School of Medicine
| | - Mano Takahashi
- Department of Molecular Life Science, Tokai University School of Medicine
| | - Naoki Isobe
- Graduate School of Integrated Sciences for Life, Hiroshima University
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50
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Suzuki N, Hirano M, Shinozuka Y, Kawai K, Okamoto Y, Isobe N. Effects of ozonized glycerin on inflammation of mammary glands induced by intramammary lipopolysaccharide infusion in goats. Anim Sci J 2022; 93:e13780. [PMID: 36345758 DOI: 10.1111/asj.13780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 10/03/2022] [Accepted: 10/24/2022] [Indexed: 11/10/2022]
Abstract
Although ozone shows antimicrobial activity against mastitis-causing pathogens in ruminants, its anti-inflammatory effect on mammary glands remains unclear. The aim of this study was to examine the anti-inflammatory effects of ozonized glycerin (OG) on experimentally induced inflammation in the mammary glands of six Shiba and two Tokara lactating goats. We infused 1 μg lipopolysaccharide (LPS) into all udders on day -1. On day 0, post LPS infusion, OG (ozone group), and glycerin (control group) were infused into the right and left sides of the udders, respectively. Milk samples were collected once daily from days -1 to 7. The somatic cell count and lactoperoxidase (LPO) activity, along with the interleukin-1β (IL-1β), tumor necrosis factor-α, IL-8, IL-10, lactoferrin, and sodium ion concentrations in milk were measured. IL-8, IL-10, and lactoferrin levels after LPS infusion in the ozone group were significantly lower than those in the control group, and the LPO activity tended to be lower than that observed in the control group. This study showed that OG has anti-inflammatory potential against LPS-induced inflammation in the mammary glands.
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Affiliation(s)
- Naoki Suzuki
- Graduate School of Integrated Sciences for Life Hiroshima University Higashi‐Hiroshima Hiroshima Japan
| | - Masato Hirano
- Graduate School of Integrated Sciences for Life Hiroshima University Higashi‐Hiroshima Hiroshima Japan
| | - Yasunori Shinozuka
- School of Veterinary Medicine Azabu University Sagamihara Kanagawa Japan
| | - Kazuhiro Kawai
- School of Veterinary Medicine Azabu University Sagamihara Kanagawa Japan
| | - Yoshiharu Okamoto
- Department of Veterinary Clinical Medicine, School of Veterinary Medicine Tottori University Tottori Japan
| | - Naoki Isobe
- Graduate School of Integrated Sciences for Life Hiroshima University Higashi‐Hiroshima Hiroshima Japan
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