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Sahabudin E, Kubo S, Yuzir MAM, Othman N, Nadia Md Akhir F, Suzuki K, Yoneda K, Maeda Y, Suzuki I, Hara H, Iwamoto K. The cadmium tolerance and bioaccumulation mechanism of Tetratostichococcus sp. P1: insight from transcriptomics analysis. Bioengineered 2024; 15:2314888. [PMID: 38375815 DOI: 10.1080/21655979.2024.2314888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Accepted: 02/01/2024] [Indexed: 02/21/2024] Open
Abstract
Cadmium (Cd) has become a severe issue in relatively low concentration and attracts expert attention due to its toxicity, accumulation, and biomagnification in living organisms. Cd does not have a biological role and causes serious health issues. Therefore, Cd pollutants should be reduced and removed from the environment. Microalgae have great potential for Cd absorption for waste treatment since they are more environmentally friendly than existing treatment methods and have strong metal sorption selectivity. This study evaluated the tolerance and ability of the microalga Tetratostichococcus sp. P1 to remove Cd ions under acidic conditions and reveal mechanisms based on transcriptomics analysis. The results showed that Tetratostichococcus sp. P1 had a high Cd tolerance that survived under the presence of Cd up to 100 µM, and IC50, the half-maximal inhibitory concentration value, was 57.0 μM, calculated from the change in growth rate based on the chlorophyll content. Long-term Cd exposure affected the algal morphology and photosynthetic pigments of the alga. Tetratostichococcus sp. P1 removed Cd with a maximum uptake of 1.55 mg g-1 dry weight. Transcriptomic analysis revealed the upregulation of the expression of genes related to metal binding, such as metallothionein. Group A, Group B transporters and glutathione, were also found upregulated. While the downregulation of the genes were related to photosynthesis, mitochondria electron transport, ABC-2 transporter, polysaccharide metabolic process, and cell division. This research is the first study on heavy metal bioremediation using Tetratostichococcus sp. P1 and provides a new potential microalga strain for heavy metal removal in wastewater.[Figure: see text]Abbreviations:BP: Biological process; bZIP: Basic Leucine Zipper; CC: Cellular component; ccc1: Ca (II)-sensitive cross complementary 1; Cd: Cadmium; CDF: Cation diffusion facilitator; Chl: Chlorophyll; CTR: Cu TRansporter families; DAGs: Directed acyclic graphs; DEGs: Differentially expressed genes; DVR: Divinyl chlorophyllide, an 8-vinyl-reductase; FPN: FerroportinN; FTIR: Fourier transform infrared; FTR: Fe TRansporter; GO: Gene Ontology; IC50: Growth half maximal inhibitory concentration; ICP: Inductively coupled plasma; MF: molecular function; NRAMPs: Natural resistance-associated aacrophage proteins; OD: Optical density; RPKM: Reads Per Kilobase of Exon Per Million Reads Mapped; VIT1: Vacuolar iron transporter 1 families; ZIPs: Zrt-, Irt-like proteins.
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Affiliation(s)
- Eri Sahabudin
- Department of Chemical and Environmental Engineering, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia
| | - Shohei Kubo
- Graduate School of Science and Technology, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Muhamad Ali Muhammad Yuzir
- Department of Chemical and Environmental Engineering, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia
| | - Nor'azizi Othman
- Department of Chemical and Environmental Engineering, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia
| | - Fazrena Nadia Md Akhir
- Department of Chemical and Environmental Engineering, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia
| | - Kengo Suzuki
- Department of Chemical and Environmental Engineering, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia
- Euglena Co. Ltd, Minato‑ku, Japan
- Microalgae Production Control Technology Laboratory, Yokohama, Kanagawa, Japan
| | - Kohei Yoneda
- Institute of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yoshiaki Maeda
- Institute of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Iwane Suzuki
- Institute of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Hirofumi Hara
- Department of Biotechnology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Japan
| | - Koji Iwamoto
- Department of Chemical and Environmental Engineering, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia
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Ayano M, Tsubouchi K, Suzuki K, Kimoto Y, Arinobu Y, Akashi K, Horiuchi T, Okamoto I, Niiro H. Comparing the safety and efficacy of nintedanib starting dose in patients with connective tissue disease-associated interstitial lung diseases. Scand J Rheumatol 2024:1-8. [PMID: 38563202 DOI: 10.1080/03009742.2024.2327159] [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: 12/15/2023] [Accepted: 03/04/2024] [Indexed: 04/04/2024]
Abstract
OBJECTIVE This study aimed to analyse whether initiating nintedanib treatment at a reduced dose could improve the treatment continuation rate while maintaining efficacy in patients with connective tissue disease (CTD)-associated interstitial lung disease. METHOD In total, 51 patients (age 61.6 ± 13.2 years; 38 women, 13 men) were retrospectively analysed. The primary endpoint was the cumulative discontinuation rate due to adverse events. Secondary endpoints included changes in drug dosage, efficacy evaluated based on annual changes in forced vital capacity (FVC), and safety assessed based on the frequency of adverse events. RESULTS Eighteen patients who started treatment at the standard dose of 300 mg (standard dosage group) were compared with 33 patients who started treatment at a reduced dose (reduced dosage group). Systemic sclerosis was the most common CTD (n = 32), followed by idiopathic inflammatory myopathies and, rarely, rheumatoid arthritis. Both groups exhibited comparable cumulative discontinuation rates due to adverse events and similar frequencies of adverse events. No significant differences were observed in maintenance doses between the two groups; however, patients in the reduced dosage group had a lower cumulative dose for up to 52 weeks than those in the standard dosage group. No significant differences were observed in changes in FVC between the two groups. CONCLUSION There was no evidence for a difference between the two groups in terms of discontinuation rates, efficacy, and safety. To provide further evidence, future studies using more precise dose-escalation protocols are warranted.
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Affiliation(s)
- M Ayano
- Department of Medicine and Biosystemic Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Tsubouchi
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Suzuki
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Y Kimoto
- Department of Medicine and Biosystemic Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Y Arinobu
- Department of Medicine and Biosystemic Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Akashi
- Department of Medicine and Biosystemic Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Horiuchi
- Department of Internal Medicine, Kyushu University Beppu Hospital, Beppu, Japan
| | - I Okamoto
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - H Niiro
- Department of Medical Education, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Kouzu K, Tsujimoto H, Ishinuki T, Shinji S, Shinkawa H, Tamura K, Uchino M, Ohge H, Shimizu J, Haji S, Mohri Y, Yamashita C, Kitagawa Y, Suzuki K, Kobayashi M, Kobayashi M, Hanai Y, Nobuhara H, Imaoka H, Yoshida M, Mizuguchi T, Mayumi T, Kitagawa Y. The effectiveness of fascial closure with antimicrobial-coated sutures in preventing incisional surgical site infections in gastrointestinal surgery: a systematic review and meta-analysis. J Hosp Infect 2024; 146:174-182. [PMID: 37734678 DOI: 10.1016/j.jhin.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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 09/11/2023] [Accepted: 09/11/2023] [Indexed: 09/23/2023]
Abstract
The aim of this study was to conduct a systematic review and meta-analysis of the efficacy of fascial closure using antimicrobial-sutures specifically for the prevention of surgical site infections (SSIs) in gastrointestinal surgery, as part of the revision of the SSI prevention guidelines of the Japanese Society of Surgical Infectious Diseases (JSSI). We searched CENTRAL, PubMed and ICHUSHI-Web in May 2023, and included randomized controlled trials (RCTs) comparing antimicrobial-coated and non-coated sutures for fascial closure in gastrointestinal surgery (PROSPERO No. CRD42023430377). Three authors independently screened the RCTs. We assessed the risk of bias and the GRADE criteria for the extracted data. The primary outcome was incisional SSI and the secondary outcomes were abdominal wall dehiscence and the length of postoperative hospital stay. This study was supported partially by the JSSI. A total of 10 RCTs and 5396 patients were included. The use of antimicrobial-coated sutures significantly lowered the risk of incisional SSIs compared with non-coated suture (risk ratio: 0.79, 95% confidence intervals: 0.64-0.98). In subgroup analyses, antimicrobial-coated sutures reduced the risk of SSIs for open surgeries, and when monofilament sutures were used. Antimicrobial-coated sutures did not reduce the incidence of abdominal wall dehiscence and the length of hospital stay compared with non-coated sutures. The certainty of the evidence was rated as moderate according to the GRADE criteria, because of risk of bias. In conclusion, the use of antimicrobial-coated sutures for fascial closure in gastrointestinal surgery is associated with a significantly lower risk of SSI than non-coated sutures.
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Affiliation(s)
- K Kouzu
- Department of Surgery, National Defense Medical College, Japan
| | - H Tsujimoto
- Department of Surgery, National Defense Medical College, Japan.
| | - T Ishinuki
- Department of Nursing, Division of Surgical Science, Sapporo Medical University, Japan
| | - S Shinji
- Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery, Nippon Medical School, Japan
| | - H Shinkawa
- Department of Hepatobiliary-Pancreatic Surgery, Osaka Metropolitan University Graduate School of Medicine, Japan
| | - K Tamura
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Japan
| | - M Uchino
- Department of Gastroenterological Surgery, Division of Inflammatory Bowel Disease, Hyogo Medical University, Japan
| | - H Ohge
- Department of Infectious Diseases, Hiroshima University Hospital, Japan
| | - J Shimizu
- Department of Surgery, Toyonaka Municipal Hospital, Japan
| | - S Haji
- Department of Surgery, Soseikai General Hospital, Japan
| | - Y Mohri
- Department of Surgery, Mie Prefectural General Medical Center, Japan
| | - C Yamashita
- Department of Anesthesiology and Critical Care Medicine, Fujita Health University School of Medicine, Japan
| | - Y Kitagawa
- Department of Infection Control, National Center for Geriatrics and Gerontology, Japan
| | - K Suzuki
- Department of Infectious Disease Medicine, School of Medicine, University of Occupational and Environmental Health, Japan
| | - M Kobayashi
- Department of Anesthesiology, Hokushinkai Megumino Hospital, Japan
| | - M Kobayashi
- Laboratory of Clinical Pharmacokinetics, School of Pharmacy, Kitasato University, Japan
| | - Y Hanai
- Department of Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Toho University, Japan
| | - H Nobuhara
- Department of Dentistry, Hiroshima Prefectural Hospital, Japan
| | - H Imaoka
- Department of Gastrointestinal and Pediatric Surgery, Mie University Graduate School of Medicine, Japan
| | - M Yoshida
- Department of Hepato-Biliary-Pancreatic and Gastrointestinal Surgery, International University of Health and Welfare, School of Medicine, Japan
| | - T Mizuguchi
- Department of Nursing, Division of Surgical Science, Sapporo Medical University, Japan
| | - T Mayumi
- Department of Intensive Care Unit, Japan Community Healthcare Organization Chukyo Hospital, Japan
| | - Y Kitagawa
- Keio University, School of Medicine, Japan
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Uchida Y, Koyama D, Manabe K, Suzuki K, Asano N, Endo M, Fukatsu M, Sano T, Hayashi K, Takano M, Takahashi H, Kimura S, Ikezoe T. High Efficacy and Safety of Asciminib in a Chronic Myeloid Leukemia Patient with Chronic Kidney Disease Following Renal Transplantation. Intern Med 2024; 63:717-720. [PMID: 37407456 PMCID: PMC10982009 DOI: 10.2169/internalmedicine.2179-23] [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: 04/24/2023] [Accepted: 05/29/2023] [Indexed: 07/07/2023] Open
Abstract
Chronic myeloid leukemia (CML) is a myeloproliferative neoplasm driven by the BCR::ABL1 tyrosine kinase. Tyrosine kinase inhibitors (TKIs) have been established as standard therapies for CML. However, some CML patients experience TKI intolerance. Asciminib was approved for CML patients either intolerant or refractory to TKI therapy. We herein report a 63-year-old CML patient who underwent renal transplantation and exhibited TKI intolerance. He was switched to asciminib, which achieved a deep molecular response without exacerbation of the renal function. Our experience revealed that asciminib is effective and safe for CML patients complicated with chronic kidney disease.
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Affiliation(s)
- Yasuhiro Uchida
- Department of Hematology, Fukushima Medical University, Japan
| | - Daisuke Koyama
- Department of Hematology, Fukushima Medical University, Japan
| | - Kazuya Manabe
- Department of Hematology, Fukushima Medical University, Japan
| | - Kengo Suzuki
- Department of Hematology, Fukushima Medical University, Japan
| | - Naomi Asano
- Department of Hematology, Fukushima Medical University, Japan
| | - Mamiko Endo
- Department of Hematology, Fukushima Medical University, Japan
| | | | - Takahiro Sano
- Department of Hematology, Fukushima Medical University, Japan
| | | | - Motoki Takano
- Department of Hematology, Fukushima Medical University, Japan
| | | | - Satoshi Kimura
- Department of Hematology, Fukushima Medical University, Japan
| | - Takayuki Ikezoe
- Department of Hematology, Fukushima Medical University, Japan
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Yamashita K, Hanaki R, Mori A, Suzuki K, Tomo T, Tokunaga E. Reddening of the Unicellular Green Alga Euglena gracilis by Dried Bonito Stock and Intense Red Light Irradiation. Plants (Basel) 2024; 13:510. [PMID: 38498509 PMCID: PMC10892402 DOI: 10.3390/plants13040510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 01/23/2024] [Accepted: 02/05/2024] [Indexed: 03/20/2024]
Abstract
This study confirms for the first time that the significant red coloration of Euglena gracilis is induced by bonito stock (BS), a traditional Japanese food, and intense red light exposure (605~660 nm, 1000~1300 µmol photons/m2/s). Under the condition, excessive photosynthetic activity destroyed many chloroplasts, while carotenoids were maintained, resulting in the formation of reddened cells. The HPLC analysis revealed that diadinoxanthin was the primary carotenoid present in reddened cells. Additionally, an undefined xanthophyll, not produced under normal culture conditions, was synthesized and suggested to contain a C=O bond. While it has been reported that strong light stress can increase the total carotenoid content of cells, this study did not verify this claim, and it should be investigated further in future research. Under white light irradiation conditions (90 μmol photons/m2/s) in BS medium, no reddening of cells was observed, and good growth was achieved (over four times the cell density in CM medium on the seventh day). This cell suspension is considered to have a high nutritional value because it is composed of functional food, BS and E. gracilis. The fact that this method does not involve genetic modification suggests the possibility of industrial applications, including food use, even in reddened cells.
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Affiliation(s)
- Kyohei Yamashita
- Department of Physics, Faculty of Science Division I, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan (E.T.)
| | - Ryusei Hanaki
- Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Ayaka Mori
- Department of Physics, Faculty of Science Division I, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan (E.T.)
| | - Kengo Suzuki
- Euglena Co., Ltd., 1-6, Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Kanagawa, Japan
| | - Tatsuya Tomo
- Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Eiji Tokunaga
- Department of Physics, Faculty of Science Division I, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan (E.T.)
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Nomura T, Kim J, Ishikawa M, Suzuki K, Mochida K. High-efficiency genome editing by Cas12a ribonucleoprotein complex in Euglena gracilis. Microb Biotechnol 2024; 17:e14393. [PMID: 38332568 PMCID: PMC10884871 DOI: 10.1111/1751-7915.14393] [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: 04/13/2023] [Revised: 11/18/2023] [Accepted: 12/19/2023] [Indexed: 02/10/2024] Open
Abstract
Transgene-free genome editing based on clustered regularly interspaced short palindromic repeats (CRISPR) technology is key to achieving genetic engineering in microalgae for basic research and industrial applications. Euglena gracilis, a unicellular phytoflagellate microalga, is a promising biomaterial for foods, feeds, cosmetics and biofuels. However, methods for the genetic manipulation of E. gracilis are still limited. Here, we developed a high-efficiency, transgene-free genome editing method for E. gracilis using Lachnospiraceae bacterium CRISPR-associated protein 12a (LbCas12a) ribonucleoprotein (RNP) complex, which complements the previously established Cas9 RNP-based method. Through the direct delivery of LbCas12a-containing RNPs, our method reached mutagenesis rates of approximately 77.2-94.5% at two different E. gracilis target genes, Glucan synthase-like 2 (EgGSL2) and a phytoene synthase gene (EgcrtB). Moreover, in addition to targeted mutagenesis, we demonstrated efficient knock-in and base editing at the target site using LbCas12a-based RNPs with a single-stranded DNA donor template in E. gracilis. This study extends the genetic engineering capabilities of Euglena to accelerate its basic use for research and engineering for bioproduction.
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Affiliation(s)
- Toshihisa Nomura
- RIKEN Center for Sustainable Resource ScienceYokohamaJapan
- RIKEN Baton Zone ProgramYokohamaJapan
- Faculty of AgricultureYamagata UniversityTsuruokaJapan
| | - June‐Silk Kim
- RIKEN Center for Sustainable Resource ScienceYokohamaJapan
- Institute of Plant Science and ResourcesOkayama UniversityOkayamaJapan
| | - Marumi Ishikawa
- RIKEN Baton Zone ProgramYokohamaJapan
- Euglena Co., Ltd.TokyoJapan
| | - Kengo Suzuki
- RIKEN Baton Zone ProgramYokohamaJapan
- Euglena Co., Ltd.TokyoJapan
| | - Keiichi Mochida
- RIKEN Center for Sustainable Resource ScienceYokohamaJapan
- RIKEN Baton Zone ProgramYokohamaJapan
- Kihara Institute for Biological ResearchYokohama City UniversityYokohamaKanagawaJapan
- Graduate School of NanobioscienceYokohama City UniversityYokohamaKanagawaJapan
- School of Information and Data SciencesNagasaki UniversityNagasakiJapan
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Yuzawa S, Nakashio M, Ichimura S, Shimoda M, Nakashima A, Marukawa-Hashimoto Y, Kawano Y, Suzuki K, Yoshitomi K, Kawahara M, Tanaka KI. Ergothioneine Prevents Neuronal Cell Death Caused by the Neurotoxin 6-Hydroxydopamine. Cells 2024; 13:230. [PMID: 38334622 PMCID: PMC10854700 DOI: 10.3390/cells13030230] [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: 11/28/2023] [Revised: 01/16/2024] [Accepted: 01/22/2024] [Indexed: 02/10/2024] Open
Abstract
Neuronal cell death is a key mechanism involved in the development and exacerbation of Parkinson's disease (PD). The excessive production of reactive oxygen species (ROS) is a major cause leading to neuronal death; therefore, compounds that prevent oxidative stress-dependent neuronal death may be promising as a preventive method for PD. Ergothioneine is a natural amino acid with antioxidant properties, and its protective functions in the body are attracting attention. However, there has been no investigation into the protective functions of ergothioneine using in vivo and in vitro PD models. Thus, in this study, we analyzed the efficacy of ergothioneine against 6-hydroxydopamine (6-OHDA)-dependent neuronal cell death using immortalized hypothalamic neurons (GT1-7 cells). First, we found that ergothioneine prevents 6-OHDA-dependent neuronal cell death by suppressing ROS overproduction in GT1-7 cells. The cytoprotective effect of ergothioneine was partially abolished by verapamil, an inhibitor of OCTN1, which is involved in ergothioneine uptake. Furthermore, ergothioneine-rich Rice-koji (Ergo-koji) showed cytoprotective and antioxidant effects similar to those of ergothioneine. Taken together, these results suggest that ergothioneine or foods containing ergothioneine may be an effective method for preventing the development and progression of PD.
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Affiliation(s)
- Saho Yuzawa
- Laboratory of Bio-Analytical Chemistry, Research Institute of Pharmaceutical Sciences, Faculty of Pharmacy, Musashino University, 1-1-20 Shinmachi, Nishitokyo, Tokyo 202-8585, Japan; (S.Y.); (M.N.); (S.I.); (M.S.); (M.K.)
| | - Motonari Nakashio
- Laboratory of Bio-Analytical Chemistry, Research Institute of Pharmaceutical Sciences, Faculty of Pharmacy, Musashino University, 1-1-20 Shinmachi, Nishitokyo, Tokyo 202-8585, Japan; (S.Y.); (M.N.); (S.I.); (M.S.); (M.K.)
| | - Suzuna Ichimura
- Laboratory of Bio-Analytical Chemistry, Research Institute of Pharmaceutical Sciences, Faculty of Pharmacy, Musashino University, 1-1-20 Shinmachi, Nishitokyo, Tokyo 202-8585, Japan; (S.Y.); (M.N.); (S.I.); (M.S.); (M.K.)
| | - Mikako Shimoda
- Laboratory of Bio-Analytical Chemistry, Research Institute of Pharmaceutical Sciences, Faculty of Pharmacy, Musashino University, 1-1-20 Shinmachi, Nishitokyo, Tokyo 202-8585, Japan; (S.Y.); (M.N.); (S.I.); (M.S.); (M.K.)
| | - Ayaka Nakashima
- Euglena, Co., Ltd., 5-29-11 G-BASE Tamachi 2nd Floor Shiba, Minato-ku, Tokyo 108-0014, Japan; (A.N.); (Y.M.-H.); (K.S.)
| | - Yuka Marukawa-Hashimoto
- Euglena, Co., Ltd., 5-29-11 G-BASE Tamachi 2nd Floor Shiba, Minato-ku, Tokyo 108-0014, Japan; (A.N.); (Y.M.-H.); (K.S.)
| | - Yusuke Kawano
- Euglena, Co., Ltd., 5-29-11 G-BASE Tamachi 2nd Floor Shiba, Minato-ku, Tokyo 108-0014, Japan; (A.N.); (Y.M.-H.); (K.S.)
| | - Kengo Suzuki
- Euglena, Co., Ltd., 5-29-11 G-BASE Tamachi 2nd Floor Shiba, Minato-ku, Tokyo 108-0014, Japan; (A.N.); (Y.M.-H.); (K.S.)
| | - Kenichi Yoshitomi
- Sakichi, Co., Ltd., 5-531 Kuromaru-Machi, Omura, Nagasaki 856-0808, Japan;
| | - Masahiro Kawahara
- Laboratory of Bio-Analytical Chemistry, Research Institute of Pharmaceutical Sciences, Faculty of Pharmacy, Musashino University, 1-1-20 Shinmachi, Nishitokyo, Tokyo 202-8585, Japan; (S.Y.); (M.N.); (S.I.); (M.S.); (M.K.)
| | - Ken-ichiro Tanaka
- Laboratory of Bio-Analytical Chemistry, Research Institute of Pharmaceutical Sciences, Faculty of Pharmacy, Musashino University, 1-1-20 Shinmachi, Nishitokyo, Tokyo 202-8585, Japan; (S.Y.); (M.N.); (S.I.); (M.S.); (M.K.)
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8
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Hirata K, Yamamoto Y, Hatanaka K, Kinoshita K, Abiko S, Suzuki K, Tanaka T, Ishibe E, Nakajima K, Naruse H, Umehara M, Tsuruga Y, Nakanishi K, Munakata S, Shimoyama N. Hepatobiliary and pancreatic: Tiny pigmented intra-hepatic ducts stones as the cause of jaundice and liver failure. J Gastroenterol Hepatol 2023; 38:2052. [PMID: 37680105 DOI: 10.1111/jgh.16350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 07/26/2023] [Accepted: 08/26/2023] [Indexed: 09/09/2023]
Affiliation(s)
- K Hirata
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - Y Yamamoto
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Hatanaka
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Kinoshita
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - S Abiko
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Suzuki
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - T Tanaka
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - E Ishibe
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Nakajima
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - H Naruse
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - M Umehara
- Department of Gastroenterological Surgery, Hakodate Municipal Hospital, Hakodate, Japan
| | - Y Tsuruga
- Department of Gastroenterological Surgery, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Nakanishi
- Department of Gastroenterological Surgery, Hakodate Municipal Hospital, Hakodate, Japan
| | - S Munakata
- Department of Cancer Pathology, Hakodate Municipal Hospital, Hakodate, Japan
| | - N Shimoyama
- Department of Cancer Pathology, Hakodate Municipal Hospital, Hakodate, Japan
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Higuchi M, Suzuki K, Kaminishi Y. Acute limb ischemia due to arterial dissection caused by mechanical compression of vascular tissue by the robotic arm during robot-assisted surgery: a case report. QJM 2023; 116:789-791. [PMID: 37225399 DOI: 10.1093/qjmed/hcad105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Indexed: 05/26/2023] Open
Affiliation(s)
- M Higuchi
- Department of Cardiology, Mito Saiseikai General Hospital, 3-3-10 Futabadai, Mito, Ibaraki Prefecture 311-4145, Japan
| | - K Suzuki
- Department of Cardiovascular Surgery, Mito Saiseikai General Hospital, 3-3-10 Futabadai, Mito Ibaraki Prefecture 311-4145, Japan
| | - Y Kaminishi
- Department of Cardiovascular Surgery, Mito Saiseikai General Hospital, 3-3-10 Futabadai, Mito Ibaraki Prefecture 311-4145, Japan
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10
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Tanaka H, Mizuma K, Nakamura Y, Hirata A, Miyazaki J, Suzuki K, Seta H, Watanabe H, Suzuki T, Watanabe R, Murayama N, Okamura T, Nakamura S. Predicting habitual water intake from lifestyle questions. Eur Rev Med Pharmacol Sci 2023; 27:8829-8841. [PMID: 37782192 DOI: 10.26355/eurrev_202309_33803] [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: 10/03/2023]
Abstract
OBJECTIVE Previous studies have used selective recall and descriptive dietary record methods, requiring considerable effort for assessing food and water intake. This study created a simplified lifestyle questionnaire to predict habitual water intake (SQW), accurately and quickly assessing the habitual water intake. We also evaluated the validity using descriptive dietary records as a cross-sectional study. SUBJECTS AND METHODS First, we used crowdsourcing and machine learning to collect data, predict water intake records, and create questionnaires. We collected 305 lifestyle-related questions as predictor variables and selective recall methods for assessing water intake as an outcome variable. Random forests were used for the machine learning models because of their interpretability and accurate estimation. Random forest and single regression correlation analysis were augmented by the synthetic minority oversampling that trained the model. We separated the data by sex and evaluated our model using unseen hold-out testing data, predicting the individual and overall habitual water intake from various sources, including non-alcoholic beverages, alcohol, and food. RESULTS We found a 0.60 Spearman's correlation coefficient for total water intake between the predicted and the selective recall method values, reflecting the target value to be achieved. This question set was then used for feasibility tests. The descriptive dietary record method helped to obtain a ground-truth value. We categorized the data by gender, season, and source: non-alcoholic beverages, alcohol, food, and total water intake, and the correlation was confirmed. Consequently, our results showed a Pearson's correlation coefficient of 0.50 for total water intake between the predicted and the selective recall method values. CONCLUSIONS We hypothesize that dissemination of SQW can lead to better health management by easily determining the habitual water intake.
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Affiliation(s)
- H Tanaka
- Division of Information Science, Nara Institute of Science and Technology, Ikoma, Nara, Japan.
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11
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Lee G, Jeong WH, Kim B, Jeon S, Smith AM, Seo J, Suzuki K, Kim JY, Lee H, Choi H, Chung DS, Choi J, Choi H, Lim SJ. Design and Synthesis of CdHgSe/HgS/CdZnS Core/Multi-Shell Quantum Dots Exhibiting High-Quantum-Yield Tissue-Penetrating Shortwave Infrared Luminescence. Small 2023; 19:e2301161. [PMID: 37127870 DOI: 10.1002/smll.202301161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/18/2023] [Indexed: 05/03/2023]
Abstract
Cdx Hg1- x Se/HgS/Cdy Zn1- y S core/multi-shell quantum dots (QDs) exhibiting bright tissue-penetrating shortwave infrared (SWIR; 1000-1700 nm) photoluminescence (PL) are engineered. The new structure consists of a quasi-type-II Cdx Hg1- x Se/HgS core/inner shell domain creating luminescent bandgap tunable across SWIR window and a wide-bandgap Cdy Zn1- y S outer shell boosting the PL quantum yield (QY). This compositional sequence also facilitates uniform and coherent shell growth by minimizing interfacial lattice mismatches, resulting in high QYs in both organic (40-80%) and aqueous (20-70%) solvents with maximum QYs of 87 and 73%, respectively, which are comparable to those of brightest visible-to-near infrared QDs. Moreover, they maintain bright PL in a photocurable resin (QY 40%, peak wavelength ≈ 1300 nm), enabling the fabrication of SWIR-luminescent composites of diverse morphology and concentration. These composites are used to localize controlled amounts of SWIR QDs inside artificial (Intralipid) and porcine tissues and quantitatively evaluate the applicability as luminescent probes for deep-tissue imaging.
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Affiliation(s)
- Gyudong Lee
- Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), 333 Techno Jungang Daero, Hyeonpung-Eup, Dalseong-Gun, Daegu, 42988, Republic of Korea
- Division of Nanotechnology, DGIST, 333 Techno Jungang Daero, Hyeonpung-Eup, Dalseong-Gun, Daegu, 42988, Republic of Korea
| | - Woo Hyeon Jeong
- Division of Nanotechnology, DGIST, 333 Techno Jungang Daero, Hyeonpung-Eup, Dalseong-Gun, Daegu, 42988, Republic of Korea
- Department of Chemistry and Research Institute for Natural Science, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Beomjoo Kim
- Department of Robotics Engineering, DGIST, 333 Techno Jungang Daero, Hyeonpung-Eup, Dalseong-Gun, Daegu, 42988, Republic of Korea
- DGIST-ETH Microrobotics Research Center, DGIST, 333 Techno Jungang Daero, Hyeonpung-Eup, Dalseong-Gun, Daegu, 42988, Republic of Korea
| | - Sungwoong Jeon
- DGIST-ETH Microrobotics Research Center, DGIST, 333 Techno Jungang Daero, Hyeonpung-Eup, Dalseong-Gun, Daegu, 42988, Republic of Korea
- IMsystem Corp., DGIST, 333 Techno Jungang Daero, Hyeonpung-Eup, Dalseong-Gun, Daegu, 42988, Republic of Korea
| | - Andrew M Smith
- Department of Bioengineering, University of Illinois Urbana-Champaign (UIUC), Urbana, IL, 61801, USA
- Department of Materials Science and Engineering, UIUC, Urbana, IL, 61801, USA
- Cancer Center at Illinois, UIUC, Urbana, IL, 61801, USA
- Carle Illinois College of Medicine, UIUC, Urbana, IL, 61801, USA
| | - Jongcheol Seo
- Department of Chemistry, POSTECH, 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongsangbuk-Do, 37673, Republic of Korea
| | - Kengo Suzuki
- Applied Spectroscopy System Department, Hamamatsu Photonics K.K., 812 Joko-Cho, Higashi-Ku, Hamamatsu City, 431-3196, Japan
| | - Jin-Young Kim
- DGIST-ETH Microrobotics Research Center, DGIST, 333 Techno Jungang Daero, Hyeonpung-Eup, Dalseong-Gun, Daegu, 42988, Republic of Korea
- Division of Biotechnology, DGIST, 333 Techno Jungang Daero, Hyeonpung-Eup, Dalseong-Gun, Daegu, 42988, Republic of Korea
| | - Hyunki Lee
- DGIST-ETH Microrobotics Research Center, DGIST, 333 Techno Jungang Daero, Hyeonpung-Eup, Dalseong-Gun, Daegu, 42988, Republic of Korea
- Division of Intelligent Robot, DGIST, 333 Techno Jungang Daero, Hyeonpung-Eup, Dalseong-Gun, Daegu, 42988, Republic of Korea
| | - Hongsoo Choi
- Department of Robotics Engineering, DGIST, 333 Techno Jungang Daero, Hyeonpung-Eup, Dalseong-Gun, Daegu, 42988, Republic of Korea
- DGIST-ETH Microrobotics Research Center, DGIST, 333 Techno Jungang Daero, Hyeonpung-Eup, Dalseong-Gun, Daegu, 42988, Republic of Korea
| | - Dae Sung Chung
- Department of Chemical Engineering, POSTECH, 77 Cheongam-Ro, Nam-Gu, Pohang, Gyeongsangbuk-Do, 37673, Republic of Korea
| | - Jongmin Choi
- Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), 333 Techno Jungang Daero, Hyeonpung-Eup, Dalseong-Gun, Daegu, 42988, Republic of Korea
| | - Hyosung Choi
- Department of Chemistry and Research Institute for Natural Science, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Sung Jun Lim
- Division of Nanotechnology, DGIST, 333 Techno Jungang Daero, Hyeonpung-Eup, Dalseong-Gun, Daegu, 42988, Republic of Korea
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12
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Amadutsumi T, Urashima Y, Urashima K, Suzuki K, Kurachi K, Nishihara M, Neo M, Myotoku M, Kobori T, Obata T. Semisolid Enteral Nutrients Alter the Pharmacokinetics of Orally Administered Levetiracetam in Rats. Pharmazie 2023; 78:117-121. [PMID: 37592422 DOI: 10.1691/ph.2023.3575] [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
Enteral nutrients (ENs) affect the plasma drug concentration of orally co-administered drugs, particularly those of antiepileptic drugs, such as phenytoin and carbamazepine. However, few studies have reported the interactions of levetiracetam (LEV), an upcoming antiepileptic drug, with ENs. In this study we aimed to investigate the pharmacokinetics of LEV in 55 rats after oral co-administration of LEV with liquid or semisolid ENs. Compared with the control group, co-administration with Terumeal ® Soft significantly decreased the plasma LEV concentration at 0.5, 1, and 2 h and area under the plasma concentration-time curve from 0 to 3 h (AUC0→3h) (P < 0.01). However, the AUC0→3h of LEV remained unchanged following the administration of Terumeal ® Soft 2 h after the initial LEV administration. Moreover, co-administration with semisolid Racol® NF delayed the absorption of LEV without decreasing the AUC0→3h, whereas liquid Racol ® NF did not alter LEV pharmacokinetics. Thus, co-administration of LEV with Terumeal® Soft reduced the absorption of LEV from the gastrointestinal tract, which was prevented by administering Terumeal ® Soft 2 h after LEV administration. Semisolid Racol ® NF altered LEV pharmacokinetics without decreasing its gastrointestinal absorption. Our findings suggested that careful monitoring of the plasma LEV levels is necessary when co-administering LEV with Terumeal ® Soft, semisolid Racol ® NF, or any other semisolid ENs, to prevent the inadvertent effects of the interaction between LEV and ENs.
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Affiliation(s)
| | - Y Urashima
- Laboratory of Clinical Pharmaceutics, Faculty of Pharmacy, Osaka Ohtani University, 3-11-1 Nishikiorikita, Tondabayashi, Osaka 584-8540, Japan Tokio Obata, Laboratory of Clinical Pharmaceutics, Faculty of Pharmacy, Osaka Ohtani University, 3-11-1 Nishikiorikita, Tondabayashi, Osaka 584-8540, Japan ,
| | | | | | | | | | | | | | | | - T Obata
- Laboratory of Clinical Pharmaceutics, Faculty of Pharmacy, Osaka Ohtani University, 3-11-1 Nishikiorikita, Tondabayashi, Osaka 584-8540, Japan
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13
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Madokoro Y, Kato D, Tsuda Y, Arakawa I, Suzuki K, Sato T, Mizuno M, Uchida Y, Ojika K, Matsukawa N. Direct Enhancement Effect of Hippocampal Cholinergic Neurostimulating Peptide on Cholinergic Activity in the Hippocampus. Int J Mol Sci 2023; 24:ijms24108916. [PMID: 37240261 DOI: 10.3390/ijms24108916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 05/15/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
The cholinergic efferent network from the medial septal nucleus to the hippocampus is crucial for learning and memory. This study aimed to clarify whether hippocampal cholinergic neurostimulating peptide (HCNP) has a rescue function in the cholinergic dysfunction of HCNP precursor protein (HCNP-pp) conditional knockout (cKO). Chemically synthesized HCNP or a vehicle were continuously administered into the cerebral ventricle of HCNP-pp cKO mice and littermate floxed (control) mice for two weeks via osmotic pumps. We immunohistochemically measured the cholinergic axon volume in the stratum oriens and functionally evaluated the local field potential in the CA1. Furthermore, choline acetyltransferase (ChAT) and nerve growth factor (NGF) receptor (TrkA and p75NTR) abundances were quantified in wild-type (WT) mice administered HCNP or the vehicle. As a result, HCNP administration morphologically increased the cholinergic axonal volume and electrophysiological theta power in HCNP-pp cKO and control mice. Following the administration of HCNP to WT mice, TrkA and p75NTR levels also decreased significantly. These data suggest that extrinsic HCNP may compensate for the reduced cholinergic axonal volume and theta power in HCNP-pp cKO mice. HCNP may function complementarily to NGF in the cholinergic network in vivo. HCNP may represent a therapeutic candidate for neurological diseases with cholinergic dysfunction, e.g., Alzheimer's disease and Lewy body dementia.
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Affiliation(s)
- Yuta Madokoro
- Department of Neurology, Nagoya City University, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Daisuke Kato
- Department of Neurology, Nagoya City University, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Yo Tsuda
- Department of Neurology, Nagoya City University, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Itsumi Arakawa
- Department of Neurology, Nagoya City University, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Kengo Suzuki
- Department of Neurology, Nagoya City University, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Toyohiro Sato
- Department of Neurology, Nagoya City University, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Masayuki Mizuno
- Department of Neurology, Nagoya City University, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Yuto Uchida
- Department of Neurology, Nagoya City University, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Kosei Ojika
- Department of Neurology, Nagoya City University, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Noriyuki Matsukawa
- Department of Neurology, Nagoya City University, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
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14
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Yoshizaki Y, Yamasaki M, Nagata T, Suzuki K, Yamada R, Kato T, Murase N, Kuzuya A, Asai A, Higuchi K, Kaji K, Yoshiji H, Ohya Y. Drug Delivery with Hyaluronic Acid-Coated Polymeric Micelles in Liver Fibrosis Therapy. ACS Biomater Sci Eng 2023. [PMID: 37159164 DOI: 10.1021/acsbiomaterials.3c00327] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Developing delivery vehicles that achieve drug accumulation in the liver and transferability into hepatic stellate cells (HSCs) across the liver sinusoidal endothelium is essential to establish a treatment for hepatic fibrosis. We previously developed hyaluronic acid (HA)-coated polymeric micelles that exhibited affinity to liver sinusoidal endothelial cells. HA-coated micelles possess a core-shell structure of self-assembled biodegradable poly(l-lysine)-b-poly(lactic acid) AB-diblock copolymer (PLys+-b-PLLA), and its exterior is coated with HA through polyion complex formation via electrostatic interaction between anionic HAs and cationic PLys segments. In this study, we prepared HA-coated micelles entrapping olmesartan medoxomil (OLM), an anti-fibrotic drug, and evaluated their possibility as drug delivery vehicles. HA-coated micelles exhibited specific cellular uptake into LX-2 cells (human HSC line) in vitro. In vivo imaging analysis after intravenous (i.v.) injection of HA-coated micelles into mice revealed that the micelles exhibited high accumulation in the liver. Observation of mouse liver tissue sections suggested that HA-coated micelles were distributed in liver tissue. Furthermore, i.v. injection of HA-coated micelles entrapping OLM showed a remarkable anti-fibrotic effect against the liver cirrhosis mouse model. Therefore, HA-coated micelles are promising candidates as drug delivery vehicles for the clinical management of liver fibrosis.
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Affiliation(s)
- Yuta Yoshizaki
- Organization for Research and Development of Innovative Science and Technology (ORDIST), Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Manami Yamasaki
- Faculty of Chemistry, Materials, Bioengineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
| | - Takuya Nagata
- Faculty of Chemistry, Materials, Bioengineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
| | - Kengo Suzuki
- Faculty of Chemistry, Materials, Bioengineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
| | - Rio Yamada
- Faculty of Chemistry, Materials, Bioengineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
| | - Takuma Kato
- Faculty of Chemistry, Materials, Bioengineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
| | - Nobuo Murase
- Organization for Research and Development of Innovative Science and Technology (ORDIST), Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
| | - Akinori Kuzuya
- Faculty of Chemistry, Materials, Bioengineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
- Kansai University Medical Polymer Research Center (KUMP-RC), Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
| | - Akira Asai
- Osaka Medical and Pharmaceutical University, 2-7, Daigakumachi, Takatsuki, Osaka 569-8680, Japan
| | - Kazuhide Higuchi
- Osaka Medical and Pharmaceutical University, 2-7, Daigakumachi, Takatsuki, Osaka 569-8680, Japan
| | - Kosuke Kaji
- Nara Medical University, 840 Shijo, Kashihara, Nara 634-8521, Japan
| | - Hitoshi Yoshiji
- Nara Medical University, 840 Shijo, Kashihara, Nara 634-8521, Japan
| | - Yuichi Ohya
- Faculty of Chemistry, Materials, Bioengineering, Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
- Kansai University Medical Polymer Research Center (KUMP-RC), Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan
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15
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Bakku RK, Yamamoto Y, Inaba Y, Hiranuma T, Gianino E, Amarianto L, Mahrous W, Suzuki H, Suzuki K. New insights into raceway cultivation of Euglena gracilis under long-term semi-continuous nitrogen starvation. Sci Rep 2023; 13:7123. [PMID: 37130945 PMCID: PMC10154353 DOI: 10.1038/s41598-023-34164-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 04/25/2023] [Indexed: 05/04/2023] Open
Abstract
This study aimed to investigate the physiological responses of Euglena gracilis (E. gracilis) when subjected to semicontinuous N-starvation (N-) for an extended period in open ponds. The results indicated that the growth rates of E. gracilis under the N- condition (11 ± 3.3 g m-2 d-1) were higher by 23% compared to the N-sufficient (N+, 8.9 ± 2.8 g m-2 d-1) condition. Furthermore, the paramylon content of E.gracilis was above 40% (w/w) of dry biomass in N- condition compared to N+ (7%) condition. Interestingly, E. gracilis exhibited similar cell numbers regardless of nitrogen concentrations after a certain time point. Additionally, it demonstrated relatively smaller cell size over time, and unaffected photosynthetic apparatus under N- condition. These findings suggest that there is a tradeoff between cell growth and photosynthesis in E. gracilis, as it adapts to semi-continuous N- conditions without a decrease in its growth rate and paramylon productivity. Notably, to the author's knowledge, this is the only study reporting high biomass and product accumulation by a wild-type E. gracilis strain under N- conditions. This newly identified long-term adaptation ability of E. gracilis may offer a promising direction for the algal industry to achieve high productivity without relying on genetically modified organisms.
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Affiliation(s)
- Ranjith Kumar Bakku
- Algae Energy Technology Research Institute, 649-17 Nishiyama, Taki-cho, Taki-gun, Mie, 519-2171, Japan.
- Euglena Co., Ltd., G-BASE Tamachi 2nd and 3rd Floor, 5-29-11, Shiba, Minato-ku, Tokyo, 108-0014, Japan.
| | - Yoshimasa Yamamoto
- Algae Energy Technology Research Institute, 649-17 Nishiyama, Taki-cho, Taki-gun, Mie, 519-2171, Japan
- Euglena Co., Ltd., G-BASE Tamachi 2nd and 3rd Floor, 5-29-11, Shiba, Minato-ku, Tokyo, 108-0014, Japan
| | - Yu Inaba
- Algae Energy Technology Research Institute, 649-17 Nishiyama, Taki-cho, Taki-gun, Mie, 519-2171, Japan
- Euglena Co., Ltd., G-BASE Tamachi 2nd and 3rd Floor, 5-29-11, Shiba, Minato-ku, Tokyo, 108-0014, Japan
| | - Taro Hiranuma
- Algae Energy Technology Research Institute, 649-17 Nishiyama, Taki-cho, Taki-gun, Mie, 519-2171, Japan
- Euglena Co., Ltd., G-BASE Tamachi 2nd and 3rd Floor, 5-29-11, Shiba, Minato-ku, Tokyo, 108-0014, Japan
| | - Enrico Gianino
- Algae Energy Technology Research Institute, 649-17 Nishiyama, Taki-cho, Taki-gun, Mie, 519-2171, Japan
- Euglena Co., Ltd., G-BASE Tamachi 2nd and 3rd Floor, 5-29-11, Shiba, Minato-ku, Tokyo, 108-0014, Japan
| | - Lawi Amarianto
- Algae Energy Technology Research Institute, 649-17 Nishiyama, Taki-cho, Taki-gun, Mie, 519-2171, Japan
- Euglena Co., Ltd., G-BASE Tamachi 2nd and 3rd Floor, 5-29-11, Shiba, Minato-ku, Tokyo, 108-0014, Japan
| | - Waleed Mahrous
- Algae Energy Technology Research Institute, 649-17 Nishiyama, Taki-cho, Taki-gun, Mie, 519-2171, Japan
- Euglena Co., Ltd., G-BASE Tamachi 2nd and 3rd Floor, 5-29-11, Shiba, Minato-ku, Tokyo, 108-0014, Japan
| | - Hideyuki Suzuki
- Algae Energy Technology Research Institute, 649-17 Nishiyama, Taki-cho, Taki-gun, Mie, 519-2171, Japan.
- Euglena Co., Ltd., G-BASE Tamachi 2nd and 3rd Floor, 5-29-11, Shiba, Minato-ku, Tokyo, 108-0014, Japan.
| | - Kengo Suzuki
- Euglena Co., Ltd., G-BASE Tamachi 2nd and 3rd Floor, 5-29-11, Shiba, Minato-ku, Tokyo, 108-0014, Japan
- Microalgae Production Control Technology Laboratory, RIKEN 1-7-22, Suehiro, Tsurumi, Yokohama, Kanagawa, 230-0045, Japan
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16
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Tamaki S, Ozasa K, Nomura T, Ishikawa M, Yamada K, Suzuki K, Mochida K. Zeaxanthin is required for eyespot formation and phototaxis in Euglena gracilis. Plant Physiol 2023; 191:2414-2426. [PMID: 36611254 PMCID: PMC10069888 DOI: 10.1093/plphys/kiad001] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 12/08/2022] [Accepted: 12/09/2022] [Indexed: 05/31/2023]
Abstract
The eyespot apparatus is an organelle that forms carotenoid-rich globules in diverse flagellated microalgae and functions in phototaxis. The euglenophytes have structurally and functionally distinct eyespot apparatuses from chlorophytes. β-Carotene is the most abundant pigment detected in chlorophytes' eyespots, while xanthophylls such as zeaxanthin and diadinoxanthin have been suggested to function in euglenophytes' eyespots. Here, we investigated the association between carotenoid composition and eyespot formation via pathway-scale mutagenesis using clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 9 (Cas9)-mediated genome editing in the euglenophyte Euglena gracilis. Lycopene cyclase (lcy) mutants exhibited sole lycopene accumulation, defective red eyespots, and phototactic insensitivity. Conversely, β-carotene hydroxylase (cytochrome P450 97h1, cyp97h1) mutants accumulated β-carotene and its hydroxylated products β-cryptoxanthin and zeaxanthin and formed phototactic eyespot apparatuses, while cyp97h1 cyp97f2 double mutants were deficient in β-carotene hydroxylation and mostly lacked functional eyespots. Thus, zeaxanthin is required for the stable formation of functional eyespots in E. gracilis, highlighting evolutionary differences between euglenophytes and chlorophytes in the metabolic regulation of photoreactive organelle formation.
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Affiliation(s)
- Shun Tamaki
- Microalgae Production Control Technology Laboratory, RIKEN Baton Zone Program, Yokohama 230-0045, Japan
| | - Kazunari Ozasa
- RIKEN Center for Advanced Photonics, Wako, Saitama 351-0198, Japan
| | - Toshihisa Nomura
- Microalgae Production Control Technology Laboratory, RIKEN Baton Zone Program, Yokohama 230-0045, Japan
- RIKEN Center for Sustainable Resource Science, Yokohama 230-0045, Japan
| | - Marumi Ishikawa
- Microalgae Production Control Technology Laboratory, RIKEN Baton Zone Program, Yokohama 230-0045, Japan
| | - Koji Yamada
- Microalgae Production Control Technology Laboratory, RIKEN Baton Zone Program, Yokohama 230-0045, Japan
- euglena Co., Ltd., Tokyo 108-0014, Japan
| | - Kengo Suzuki
- Microalgae Production Control Technology Laboratory, RIKEN Baton Zone Program, Yokohama 230-0045, Japan
- euglena Co., Ltd., Tokyo 108-0014, Japan
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17
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Ryan C, Cao S, Sekiguchi M, Haraguchi A, Murata A, Nakashima A, Suzuki K, Shibata S. Euglena gracilis-derived β-glucan paramylon entrains the peripheral circadian clocks in mice. Front Nutr 2023; 10:1113118. [PMID: 37051126 PMCID: PMC10084324 DOI: 10.3389/fnut.2023.1113118] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 03/09/2023] [Indexed: 03/29/2023] Open
Abstract
Paramylon, a β-1,3-glucan storage polysaccharide derived from Euglena gracilis, has various health benefits, such as anti-obesity effects and modulation of immune function. However, whether paramylon intake affects the circadian clock remains unknown. In this study, we examined the effect of paramylon intake on the circadian clock. The results showed that the paramylon intake regulated peripheral clocks in mice. Furthermore, cecal pH and short-chain fatty acid concentrations after paramylon intake were measured. The correlation between changes in the expression of clock-related genes and alterations in the intestinal environment was confirmed. In addition, peripheral clock entrainment by paramylon intake was not observed in antibiotic-treated mice whose gut microbiota was weakened. These findings suggest that the regulation of the circadian clock by paramylon intake was mediated by changes in gut microbiota. In addition, the entraining effect of paramylon intake was also confirmed in mice bred under conditions mimicking social jetlag, which implies that paramylon intake may contribute to recovery from social jetlag. Thus, the appropriate consumption of paramylon may have a beneficial effect on health from a chrono-nutritional perspective.
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Affiliation(s)
- Conn Ryan
- Laboratory of Physiology and Pharmacology, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - Siyuan Cao
- Laboratory of Physiology and Pharmacology, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - Masataka Sekiguchi
- Laboratory of Physiology and Pharmacology, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - Atsushi Haraguchi
- Laboratory of Physiology and Pharmacology, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | | | | | | | - Shigenobu Shibata
- Laboratory of Physiology and Pharmacology, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
- *Correspondence: Shigenobu Shibata,
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Takahashi Y, Shimamoto K, Toyokawa C, Suzuki K, Osanai T. Gravity sedimentation of eukaryotic algae Euglena gracilis accelerated by ethanol cultivation. Appl Microbiol Biotechnol 2023; 107:3021-3032. [PMID: 36941437 DOI: 10.1007/s00253-023-12476-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 03/02/2023] [Accepted: 03/06/2023] [Indexed: 03/23/2023]
Abstract
Euglena gracilis (E. gracilis) is a unicellular microalga with various applications in medicine, agriculture, aquaculture, health supplement, and jet fuel production. Euglena possibly solves population growth and exhaustion of fossil resources. Efficient cell harvesting is needed for the industry, and the gravity sedimentation method is low cost and does not require any equipment, although it has low efficiency. This study showed that the gravity sedimentation of E. gracilis cells is improved by cultivation in the presence of ethanol (EtOH). The gravity sedimentation of E. gracilis cells cultivated under 0.5% or 1.0% EtOH conditions was faster than that cultivated without EtOH. The mean calculated cell diameter was also found to be largest in cells cultivated under 0.5% or 1.0% EtOH conditions compared to that in cells cultivated without EtOH. Intracellular paramylon content, cell shapes, and motility differed between cells cultivated under 0.5% or 1.0% EtOH conditions and in the absence of EtOH. The results suggest that E. gracilis cultivation with EtOH leads to increased cell productivity, paramylon production, and efficient cell harvesting. KEY POINTS: • Euglena gracilis is an edible microalga producing value-added metabolites. • Ethanol addition upregulates E. gracilis growth and paramylon accumulation. • Gravity sedimentation is accelerated by ethanol-grown E. gracilis cells.
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Affiliation(s)
- Yu Takahashi
- School of Agriculture, Meiji University, 1-1-1 Higashimita, Tama-Ku, Kawasaki, Kanagawa, 214-8571, Japan
| | - Kosuke Shimamoto
- School of Agriculture, Meiji University, 1-1-1 Higashimita, Tama-Ku, Kawasaki, Kanagawa, 214-8571, Japan
| | - Chihana Toyokawa
- euglena Co., Ltd., 5-33-1 Shiba, Minato-Ku, Tokyo, 108-0014, Japan
- RIKEN, 1-7-22, Suehirocho, Tsurumi-Ku, Yokohama, Kanagawa, 230-0045, Japan
| | - Kengo Suzuki
- euglena Co., Ltd., 5-33-1 Shiba, Minato-Ku, Tokyo, 108-0014, Japan
- RIKEN, 1-7-22, Suehirocho, Tsurumi-Ku, Yokohama, Kanagawa, 230-0045, Japan
| | - Takashi Osanai
- School of Agriculture, Meiji University, 1-1-1 Higashimita, Tama-Ku, Kawasaki, Kanagawa, 214-8571, Japan.
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19
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Kawai T, Shimohira M, Nakayama K, Sato T, Ohta K, Suzuki K, Sawada Y, Wei Ng K, Huei Leong S, Hiwatashi A. Abstract No. 230 Robot-Assisted CT-Guided Biopsy with an Artificial Intelligence-Based Needle-Path Generator: A Phantom Study. J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.291] [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: 02/26/2023] Open
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20
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Shimohira M, Kawai T, Ohta K, Suzuki K, Nakayama K, Hiwatashi A. Abstract No. 162 Pulmonary Arteriovenous Malformations: Which Factors Are Associated with Symptomatic Neurologic Complications in Solitary Lesions? J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.217] [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: 02/26/2023] Open
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21
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Itoh T, Yamamoto D, Takita-Mori Y, Atsuji K, Yokoyama K, Nakashima A, Suzuki K. Development of cultivation feed diet for disk abalone (<i>Haliotis discus discus</i> Reeve) using food processing by-products. J JPN SOC FOOD SCI 2023. [DOI: 10.3136/nskkk.nskkk-d-22-00044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Tomohiro Itoh
- Laboratory for Molecular Chemistry of Aquatic Materials, Department of Life Sciences, Graduate School of Bioresources, Mie University
| | - Dai Yamamoto
- Minami-ise town hall Fisheries, Agriculture and forestry Division, Nansei Fisheries seeding Facility
| | - Yuko Takita-Mori
- Minami-ise town hall Fisheries, Agriculture and forestry Division, Nansei Fisheries seeding Facility
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22
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Hidaka R, Masuda Y, Ogawa K, Tanaka T, Kanazawa M, Suzuki K, Stading M, Iijima K, Matsuo K. Impact of the Comprehensive Awareness Modification of Mouth, Chewing and Meal (CAMCAM) Program on the Attitude and Behavior Towards Oral Health and Eating Habits as Well as the Condition of Oral Frailty: A Pilot Study. J Nutr Health Aging 2023; 27:340-347. [PMID: 37248757 DOI: 10.1007/s12603-023-1913-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 03/29/2023] [Indexed: 05/31/2023]
Abstract
OBJECTIVES Preserving sufficient oral function and maintaining aadequate nutrition are essential for preventing physical frailty and the following long-term care. We recently developed the 6-month Comprehensive Awareness Modification of Mouth, Chewing And Meal (CAMCAM) program, in which participants gather monthly to learn about oral health and nutrition while eating a textured lunch together. This study examined whether the CAMCAM program could improve attitude and behavior towards oral health, mastication, and diet as well as ameliorate oral frailty in community-dwelling older adults. DESIGN Single-arm pre-post comparison study. SETTING AND PARTICIPANTS A total of 271 community-dwelling adults (72.3 ± 5.7 years of age; 159 women [58.7%]) in 4 Japanese municipalities were recruited, of which 249 participants (92%) were assessed at the final evaluation. INTERVENTION Participants gathered once a month at community centers to learn about oral health and nutrition while eating a "munchy" textured lunch containing proper nutrition. MEASUREMENTS Oral frailty, frailty, and eating behavior were evaluated with the Oral Frailty Index-8 (OFI-8), Kihon checklist (KCL), and CAMCAM checklist, respectively. Participants were divided into Oral frailty (OF) and Robust groups according to OFI-8 scores. The differences in KCL and CAMCAM checklist results between the OF and Robust groups were statistically tested along with changes in scores after the program. RESULTS KCL and CAMCAM checklist scores were significantly lower in the OF group at the initial assessment. OFI-8 and KCL findings were significantly improved in the OF group after completing the program (all P <0.05). Regarding the CAMCAM checklist, awareness of chewing improved significantly in the Robust group (P=0.009), with a similar tendency in the OF group (P=0.080). CONCLUSION The findings of this pilot study suggest that the CAMCAM program may improve both oral and systemic frailty in addition to attitudes towards chewing, oral health, and meals, especially in individuals with oral frailty. The CAMCAM program merits expansion as a community-based frailty prevention program.
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Affiliation(s)
- R Hidaka
- Koichiro Matsuo, Department of Oral Health Sciences for Community Welfare, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo, Tokyo 113-8549, Japan, Phone: +81-3-5803-4545, E-mail:
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23
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Upreti D, Ishiguro S, Phillips M, Nakashima A, Suzuki K, Comer J, Tamura M. Euglena gracilis Extract Protects From Tobacco Smoke Carcinogen-Induced Lung Cancer by Altering Gut Microbiota Metabolome. Integr Cancer Ther 2023; 22:15347354231195323. [PMID: 37646331 PMCID: PMC10469252 DOI: 10.1177/15347354231195323] [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: 03/22/2023] [Revised: 07/12/2023] [Accepted: 08/01/2023] [Indexed: 09/01/2023] Open
Abstract
Extracts from Euglena gracilis have been shown to prevent cancer growth in mouse models. However, the molecular mechanism of this anti-cancer activity has not been determined nor has the effect of Euglena extracts on tobacco smoke carcinogen-induced carcinogenesis. Here, we investigate the hypothesis that this anti-cancer activity is a result of changes in the intestinal microbiota induced by oral administration of the extract. We found that a Euglena gracilis water extract prevents lung tumorigenesis induced by a tobacco smoke-specific carcinogen (NNK) in mice treated either 2 weeks before or 10 weeks after NNK injection. Both of these treatment regimens are associated with significant increases in 27 microbiota metabolites found in the mouse feces, including large increases in triethanolamine, salicylate, desaminotyrosine, N-acetylserine, glycolate, and aspartate. Increases in the short-chain fatty acids (SCFAs) including acetate, propionate and butyrate are also observed. We also detected a significant attenuation of lung carcinoma cell growth through the induction of cell cycle arrest and apoptosis caused by low levels of SCFAs. This study provides strong evidence of anti-cancer activity in Euglena gracilis extracts against tobacco smoke carcinogen-induced tumorigenesis and demonstrates that this activity is linked to increased production of specific gut microbiota metabolites and the resultant induction of cell cycle arrest and apoptosis of lung carcinoma cells.
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Affiliation(s)
- Deepa Upreti
- Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine, Manhattan, KS, USA
| | - Susumu Ishiguro
- Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine, Manhattan, KS, USA
| | - Morgan Phillips
- Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine, Manhattan, KS, USA
| | | | | | - Jeffrey Comer
- Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine, Manhattan, KS, USA
| | - Masaaki Tamura
- Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine, Manhattan, KS, USA
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24
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Nishi Y, Murakami Y, Teshima S, Tsukano K, Otsuka M, Hirata H, Tsuchiya M, Suzuki K. Endotoxin activity and leukocytic STAT3 mRNA alterations differ according to age in lipopolysaccharide-challenged calves. Res Vet Sci 2022; 152:300-306. [DOI: 10.1016/j.rvsc.2022.08.028] [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] [Received: 12/22/2021] [Revised: 08/26/2022] [Accepted: 08/27/2022] [Indexed: 11/27/2022]
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25
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Suzuki K, Nishio N, Kimura H, Tokura T, Kishi S, Ozaki N, Fujimoto Y, Sone M. Comparison of quality of life and psychological distress in patients with tongue cancer undergoing a total/subtotal glossectomy or extended hemiglossectomy and free flap transfer: a prospective evaluation. Int J Oral Maxillofac Surg 2022; 52:621-629. [PMID: 36470693 DOI: 10.1016/j.ijom.2022.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 11/18/2022] [Accepted: 11/23/2022] [Indexed: 12/03/2022]
Abstract
The aim of this study was to assess changes in the quality of life and psychological distress of patients with tongue cancer undergoing total/subtotal glossectomy (TG) or extended hemiglossectomy (HG) and free flap transfer. Differences between the two groups were compared using the Short Form 8-Item Health Survey (SF-8) and Hospital Anxiety and Depression Scale (HADS). Of the 43 patients with tongue cancer, 24 (56%) underwent TG and 19 (44%) underwent HG. The general health and social functioning scores in the SF-8 and depression in the HADS were significantly worse in the TG group than in the HG group at 12 months after surgery, indicating that patients in the TG group may experience social isolation and psychological distress, and have difficulty in employability even 12 months after surgery. In contrast, all items of the SF-8 in the HG group were nearly equal to those in the general population. Due to the extensive psychological impact on patients with tongue cancer who are planned for an extended resection, curative surgery with free flap transfer and multidisciplinary psychiatric support are essential to improve quality of life and manage psychological distress.
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26
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Suzuki K, Ohi Y, Sato T, Tsuda Y, Madokoro Y, Mizuno M, Adachi K, Uchida Y, Haji A, Ojika K, Matsukawa N. Reduction of glutamatergic activity through cholinergic dysfunction in the hippocampus of hippocampal cholinergic neurostimulating peptide precursor protein knockout mice. Sci Rep 2022; 12:19161. [PMID: 36357544 PMCID: PMC9649636 DOI: 10.1038/s41598-022-23846-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 11/07/2022] [Indexed: 11/11/2022] Open
Abstract
Cholinergic activation can enhance glutamatergic activity in the hippocampus under pathologic conditions, such as Alzheimer's disease. The aim of the present study was to elucidate the relationship between glutamatergic neural functional decline and cholinergic neural dysfunction in the hippocampus. We report the importance of hippocampal cholinergic neurostimulating peptide (HCNP) in inducing acetylcholine synthesis in the medial septal nucleus. Here, we demonstrate that HCNP-precursor protein (pp) knockout (KO) mice electrophysiologically presented with glutamatergic dysfunction in the hippocampus with age. The impairment of cholinergic function via a decrease in vesicular acetylcholine transporter in the pre-synapse with reactive upregulation of the muscarinic M1 receptor may be partly involved in glutamatergic dysfunction in the hippocampus of HCNP-pp KO mice. The results, in combination with our previous reports that show the reduction of hippocampal theta power through a decrease of a region-specific choline acetyltransferase in the stratum oriens of CA1 and the decrease of acetylcholine concentration in the hippocampus, may indicate the defined cholinergic dysfunction in HCNP-pp KO mice. This may also support that HCNP-pp KO mice are appropriate genetic models for cholinergic functional impairment in septo-hippocampal interactions. Therefore, according to the cholinergic hypothesis, the model mice might are potential partial pathological animal models for Alzheimer's disease.
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Affiliation(s)
- Kengo Suzuki
- grid.260433.00000 0001 0728 1069Department of Neurology, Graduate School of Medical Sciences, Nagoya City University, 1 Kawasumi, Mizuho-Ku, Nagoya, 467-8602 Japan
| | - Yoshiaki Ohi
- grid.411253.00000 0001 2189 9594Laboratory of Neuropharmacology, School of Pharmacy, Aichi Gakuin University, 1-100 Kusumoto, Chikusa-Ku, Nagoya, 464-8650 Japan
| | - Toyohiro Sato
- grid.260433.00000 0001 0728 1069Department of Neurology, Graduate School of Medical Sciences, Nagoya City University, 1 Kawasumi, Mizuho-Ku, Nagoya, 467-8602 Japan
| | - Yo Tsuda
- grid.260433.00000 0001 0728 1069Department of Neurology, Graduate School of Medical Sciences, Nagoya City University, 1 Kawasumi, Mizuho-Ku, Nagoya, 467-8602 Japan
| | - Yuta Madokoro
- grid.260433.00000 0001 0728 1069Department of Neurology, Graduate School of Medical Sciences, Nagoya City University, 1 Kawasumi, Mizuho-Ku, Nagoya, 467-8602 Japan
| | - Masayuki Mizuno
- grid.260433.00000 0001 0728 1069Department of Neurology, Graduate School of Medical Sciences, Nagoya City University, 1 Kawasumi, Mizuho-Ku, Nagoya, 467-8602 Japan
| | - Kenichi Adachi
- grid.260433.00000 0001 0728 1069Department of Neurology, Graduate School of Medical Sciences, Nagoya City University, 1 Kawasumi, Mizuho-Ku, Nagoya, 467-8602 Japan
| | - Yuto Uchida
- grid.260433.00000 0001 0728 1069Department of Neurology, Graduate School of Medical Sciences, Nagoya City University, 1 Kawasumi, Mizuho-Ku, Nagoya, 467-8602 Japan
| | - Akira Haji
- grid.411253.00000 0001 2189 9594Laboratory of Neuropharmacology, School of Pharmacy, Aichi Gakuin University, 1-100 Kusumoto, Chikusa-Ku, Nagoya, 464-8650 Japan
| | - Kosei Ojika
- grid.260433.00000 0001 0728 1069Department of Neurology, Graduate School of Medical Sciences, Nagoya City University, 1 Kawasumi, Mizuho-Ku, Nagoya, 467-8602 Japan
| | - Noriyuki Matsukawa
- grid.260433.00000 0001 0728 1069Department of Neurology, Graduate School of Medical Sciences, Nagoya City University, 1 Kawasumi, Mizuho-Ku, Nagoya, 467-8602 Japan
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27
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Ishikawa M, Nomura T, Tamaki S, Ozasa K, Suzuki T, Toyooka K, Hirota K, Yamada K, Suzuki K, Mochida K. CRISPR/Cas9-mediated generation of non-motile mutants to improve the harvesting efficiency of mass-cultivated Euglena gracilis. Plant Biotechnol J 2022; 20:2042-2044. [PMID: 35916139 PMCID: PMC9616515 DOI: 10.1111/pbi.13904] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 07/22/2022] [Accepted: 07/28/2022] [Indexed: 06/15/2023]
Affiliation(s)
- Marumi Ishikawa
- Microalgae Production Control Technology Laboratory, RIKEN Baton Zone Program, RIKEN Cluster for ScienceTechnology and Innovation HubYokohamaJapan
| | - Toshihisa Nomura
- Microalgae Production Control Technology Laboratory, RIKEN Baton Zone Program, RIKEN Cluster for ScienceTechnology and Innovation HubYokohamaJapan
- Bioproductivity Informatics Research TeamRIKEN Center for Sustainable Resource ScienceYokohamaJapan
| | - Shun Tamaki
- Microalgae Production Control Technology Laboratory, RIKEN Baton Zone Program, RIKEN Cluster for ScienceTechnology and Innovation HubYokohamaJapan
| | - Kazunari Ozasa
- Advanced Laser Processing Research TeamRIKEN Center for Advanced PhotonicsWakoJapan
| | - Tomoko Suzuki
- Mass Spectrometry and Microscopy Unit, Technology Platform DivisionRIKEN Center for Sustainable Resource ScienceKanagawaJapan
- Center for Gene ResearchNagoya UniversityAichiJapan
| | - Kiminori Toyooka
- Mass Spectrometry and Microscopy Unit, Technology Platform DivisionRIKEN Center for Sustainable Resource ScienceKanagawaJapan
| | - Kikue Hirota
- Microalgae Production Control Technology Laboratory, RIKEN Baton Zone Program, RIKEN Cluster for ScienceTechnology and Innovation HubYokohamaJapan
| | - Koji Yamada
- Microalgae Production Control Technology Laboratory, RIKEN Baton Zone Program, RIKEN Cluster for ScienceTechnology and Innovation HubYokohamaJapan
- euglena Co., Ltd.TokyoJapan
| | - Kengo Suzuki
- Microalgae Production Control Technology Laboratory, RIKEN Baton Zone Program, RIKEN Cluster for ScienceTechnology and Innovation HubYokohamaJapan
- euglena Co., Ltd.TokyoJapan
| | - Keiichi Mochida
- Microalgae Production Control Technology Laboratory, RIKEN Baton Zone Program, RIKEN Cluster for ScienceTechnology and Innovation HubYokohamaJapan
- Bioproductivity Informatics Research TeamRIKEN Center for Sustainable Resource ScienceYokohamaJapan
- Kihara Institute for Biological ResearchYokohama City UniversityYokohamaJapan
- Graduate School of NanobioscienceYokohama City UniversityYokohamaJapan
- School of Information and Data SciencesNagasaki UniversityNagasakiJapan
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28
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Ebenezer TE, Low RS, O'Neill EC, Huang I, DeSimone A, Farrow SC, Field RA, Ginger ML, Guerrero SA, Hammond M, Hampl V, Horst G, Ishikawa T, Karnkowska A, Linton EW, Myler P, Nakazawa M, Cardol P, Sánchez-Thomas R, Saville BJ, Shah MR, Simpson AGB, Sur A, Suzuki K, Tyler KM, Zimba PV, Hall N, Field MC. Euglena International Network (EIN): Driving euglenoid biotechnology for the benefit of a challenged world. Biol Open 2022; 11:bio059561. [PMID: 36412269 PMCID: PMC9836076 DOI: 10.1242/bio.059561] [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] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Euglenoids (Euglenida) are unicellular flagellates possessing exceptionally wide geographical and ecological distribution. Euglenoids combine a biotechnological potential with a unique position in the eukaryotic tree of life. In large part these microbes owe this success to diverse genetics including secondary endosymbiosis and likely additional sources of genes. Multiple euglenoid species have translational applications and show great promise in production of biofuels, nutraceuticals, bioremediation, cancer treatments and more exotically as robotics design simulators. An absence of reference genomes currently limits these applications, including development of efficient tools for identification of critical factors in regulation, growth or optimization of metabolic pathways. The Euglena International Network (EIN) seeks to provide a forum to overcome these challenges. EIN has agreed specific goals, mobilized scientists, established a clear roadmap (Grand Challenges), connected academic and industry stakeholders and is currently formulating policy and partnership principles to propel these efforts in a coordinated and efficient manner.
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Affiliation(s)
- ThankGod Echezona Ebenezer
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, Cambridge CB10 1SD, UK
| | - Ross S. Low
- Organisms and Ecosystems, Earlham Institute, Norwich Research Park, Norwich NR4 7UZ, UK
| | | | - Ishuo Huang
- Office of Regulatory Science, United States Food and Drug Administration, Center for Food Safety and Applied Nutrition, College Park, MD 20740, USA
| | - Antonio DeSimone
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Pisa 56127, Italy
| | - Scott C. Farrow
- Discovery Biology, Noblegen Inc., Peterborough, Ontario K9L 1Z8, Canada
- Environmental and Life Sciences Graduate Program, Trent University, Peterborough, Ontario K9L 0G2, Canada
| | - Robert A. Field
- Department of Chemistry and Manchester Institute of Biotechnology, University of Manchester, Manchester M1 7DN, UK
| | - Michael L. Ginger
- School of Applied Sciences, University of Huddersfield, Huddersfield HD1 3DH, UK
| | - Sergio Adrián Guerrero
- Laboratorio de Enzimología Molecular, Instituto de Agrobiotecnología del Litoral. CCT CONICET Santa Fe, Santa Fe 3000, Argentina
| | - Michael Hammond
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, České Budějovice 370 05, Czech Republic
| | - Vladimír Hampl
- Charles University, Faculty of Science, Department of Parasitology, BIOCEV, Vestec 25250, Czech Republic
| | - Geoff Horst
- Kemin Industries, Research and Development, Plymouth, MI 48170, USA
| | - Takahiro Ishikawa
- Institute of Agricultural and Life Sciences, Academic Assembly, Shimane University, Matsue 690-8504, Japan
| | - Anna Karnkowska
- Institute of Evolutionary Biology, Faculty of Biology, University of Warsaw, Warsaw 02-089, Poland
| | - Eric W. Linton
- Department of Biology, Central Michigan University, Mt. Pleasant, MI 48859, USA
| | - Peter Myler
- Center for Global Infectious Disease Research, Seattle Children's Research Institute and Department of Biomedical Informatics & Medical Education, University of Washington, WA 98109, USA
| | - Masami Nakazawa
- Department of Applied Biochemistry, Faculty of Agriculture, Osaka Metropolitan University, Sakai, Osaka, 599-8531, Japan
| | - Pierre Cardol
- Department of Life Sciences, Institut de Botanique, Université de Liège, Liège 4000, Belgium
| | | | - Barry J. Saville
- Forensic Science, Environmental and Life Sciences Graduate Program, Trent University, Peterborough K9L 0G2, Canada
| | - Mahfuzur R. Shah
- Discovery Biology, Noblegen Inc., Peterborough, Ontario K9L 1Z8, Canada
| | - Alastair G. B. Simpson
- Department of Biology and Institute for Comparative Genomics, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - Aakash Sur
- Center for Global Infectious Disease Research, Seattle Children's Research Institute and Department of Biomedical Informatics & Medical Education, University of Washington, WA 98109, USA
| | - Kengo Suzuki
- R&D Company, Euglena Co., Ltd., 2F Yokohama Bio Industry Center (YBIC), 1-6 Suehiro, Tsurumi, Yokohama, Kanagawa, 230-0045, Japan
| | - Kevin M. Tyler
- Biomedical Research Centre, Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK
- Center of Excellence for Bionanoscience Research, King Abdul Aziz University, Jeddah, Saudi Arabia
| | - Paul V. Zimba
- PVZimba, LLC, 12241 Percival St, Chester, VA 23831, USA
- Rice Rivers Center, VA Commonwealth University, Richmond, VA 23284, USA
| | - Neil Hall
- Organisms and Ecosystems, Earlham Institute, Norwich Research Park, Norwich NR4 7UZ, UK
- School of Biological Sciences, University of East Anglia, Norwich, NR4 7TJ, Norfolk, UK
| | - Mark C. Field
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, České Budějovice 370 05, Czech Republic
- School of Life Sciences, University of Dundee, Dundee DD1 5EH, UK
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29
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Hirata K, Naruse H, Yamamoto Y, Hatanaka K, Kinoshita K, Abiko S, Suzuki K, Nakajima K, Katagiri M, Takano M, Ozasa M, Umemura M, Nakajima S, Aoyama K, Sasaki T, Kuwatani M, Sakamoto N, Tanikawa S, Okazaki N, Tanaka S. Gastrointestinal: Rare malignant biliary stricture with rapid progression. J Gastroenterol Hepatol 2022; 37:1839. [PMID: 35307882 DOI: 10.1111/jgh.15802] [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: 09/14/2021] [Revised: 12/21/2021] [Accepted: 01/12/2022] [Indexed: 12/09/2022]
Affiliation(s)
- K Hirata
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - H Naruse
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - Y Yamamoto
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Hatanaka
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Kinoshita
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - S Abiko
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Suzuki
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - K Nakajima
- Department of Gastroenterology, Hakodate Municipal Hospital, Hakodate, Japan
| | - M Katagiri
- Department of Gastroenterology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - M Takano
- Department of Gastroenterology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - M Ozasa
- Department of Gastroenterology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - M Umemura
- Department of Gastroenterology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - S Nakajima
- Department of Gastroenterology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - K Aoyama
- Department of Gastroenterology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - T Sasaki
- Department of Gastroenterology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - M Kuwatani
- Department of Gastroenterology and Hepatology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - N Sakamoto
- Department of Gastroenterology and Hepatology, Hokkaido University Faculty of Medicine and Graduate School of Medicine, Sapporo, Japan
| | - S Tanikawa
- Department of Cancer Pathology, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - N Okazaki
- Department of Cancer Pathology, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - S Tanaka
- Department of Cancer Pathology, Hokkaido University Faculty of Medicine, Sapporo, Japan
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Uchida S, Hattori A, Fukui M, Matsunaga T, Takamochi K, Suzuki K. EP02.03-025 Long-Term Oncological Outcomes and Risk Factors of Recurrence After Segmentectomy for Primary Lung Cancer. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Broadley D, van Lessen M, Takeoka A, Arai R, Suzuki K, Abe A, Nagahama T, Takaoka A, Funk W, Erdmann H, Bíró T, Bertolini M. 640 Exploring the synergic effects of a plant and a peptide on hair follicle pigmentation. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ishiguro S, Roth M, Welti R, Loyd M, Thakkar R, Phillips M, Robben N, Upreti D, Nakashima A, Suzuki K, Comer J, Tamura M. A Water Extract from Chlorella sorokiniana Cell Walls Stimulates Growth of Bone Marrow Cells and Splenocytes. Nutrients 2022; 14:nu14142901. [PMID: 35889858 PMCID: PMC9322350 DOI: 10.3390/nu14142901] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 07/11/2022] [Accepted: 07/13/2022] [Indexed: 02/01/2023] Open
Abstract
A water extract derived from the isolated cell walls of Chlorella sorokiniana (C. sorokiniana, Chlorella water extract, CWE) was analyzed for the presence of lipopolysaccharide (LPS)-related material via the Limulus amebocyte lysate (LAL) assay and evaluated for its growth stimulation effect on the bone marrow cells and splenocytes in vitro cell cultures. The extract contained low levels of LPS-related material, and a mass spectrum suggested that the extract contained many components, including a low level of a lipid A precursor, a compound known as lipid X, which is known to elicit a positive response in the LAL assay. Treatment with the CWE dose- and time-dependently stimulated the growth of mouse bone marrow cells (BMCs) and splenocytes (SPLs). Treatment with the CWE also increased specific BMC subpopulations, including antigen-presenting cells (CD19+ B cells, 33D1+ dendritic cells and CD68+ macrophages), and CD4+ and CD8+ T cells, but decreased the number of LY6G+ granulocytes. Treatment with the CWE also increased cytokine mRNA associated with T cell activation, including TNFα, IFNγ, and granzyme B in human lymphoblasts. The present study indicates that the cell wall fraction of C.sorokiniana contains an LPS-like material and suggests a candidate source for the bioactivity that stimulates growth of both innate and adaptive immune cells.
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Affiliation(s)
- Susumu Ishiguro
- Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine, Manhattan, KS 66506, USA; (S.I.); (M.L.); (R.T.); (M.P.); (N.R.); (D.U.); (J.C.)
| | - Mary Roth
- Division of Biology, Kansas Lipidomics Research Center, Kansas State University, Manhattan, KS 66506, USA; (M.R.); (R.W.)
| | - Ruth Welti
- Division of Biology, Kansas Lipidomics Research Center, Kansas State University, Manhattan, KS 66506, USA; (M.R.); (R.W.)
| | - Mayme Loyd
- Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine, Manhattan, KS 66506, USA; (S.I.); (M.L.); (R.T.); (M.P.); (N.R.); (D.U.); (J.C.)
| | - Ravindra Thakkar
- Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine, Manhattan, KS 66506, USA; (S.I.); (M.L.); (R.T.); (M.P.); (N.R.); (D.U.); (J.C.)
| | - Morgan Phillips
- Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine, Manhattan, KS 66506, USA; (S.I.); (M.L.); (R.T.); (M.P.); (N.R.); (D.U.); (J.C.)
| | - Nicole Robben
- Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine, Manhattan, KS 66506, USA; (S.I.); (M.L.); (R.T.); (M.P.); (N.R.); (D.U.); (J.C.)
| | - Deepa Upreti
- Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine, Manhattan, KS 66506, USA; (S.I.); (M.L.); (R.T.); (M.P.); (N.R.); (D.U.); (J.C.)
| | - Ayaka Nakashima
- Euglena Co., Ltd., Minato-ku, Tokyo 108-0014, Japan; (A.N.); (K.S.)
| | - Kengo Suzuki
- Euglena Co., Ltd., Minato-ku, Tokyo 108-0014, Japan; (A.N.); (K.S.)
| | - Jeffrey Comer
- Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine, Manhattan, KS 66506, USA; (S.I.); (M.L.); (R.T.); (M.P.); (N.R.); (D.U.); (J.C.)
| | - Masaaki Tamura
- Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine, Manhattan, KS 66506, USA; (S.I.); (M.L.); (R.T.); (M.P.); (N.R.); (D.U.); (J.C.)
- Correspondence: ; Tel.: +1-(785)-532-4825; Fax: +1-(785)-532-4557
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Upreti D, Ishiguro S, Nakashima A, Suzuki K, Comer J, Tamura M. Abstract 5944: Euglena water extract attenuates lung tumorigenesis induced by tobacco-specific carcinogen through modulation of gut microbiota metabolites. Cancer Res 2022. [DOI: 10.1158/1538-7445.am2022-5944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Lung cancer is the leading cause of cancer-related mortality in the world. Our previous studies have shown that the oral administration of Euglena water extract significantly inhibits the growth of grafted lung carcinoma tumors in mice. Euglena gracilis, a single-celled alga used as a nutritional dietary supplement, possesses a broad range of medicinal properties including anticancer activity against a few types of cancers. Most studies describing this anticancer activity have used xenograft cancer mouse models, but not carcinogen-induced cancer models. Since tobacco smoke carcinogen-induced lung carcinoma in mice mimics human lung cancer development, in this study, we investigated the anti-cancer properties and the underlying mechanism of the E. gracilis water extract against lung tumorigenesis induced by 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK). A/J mice (n=10 per treatment group) were used and the treatment regimen consisted of: (i) PBS control, (ii) Euglena water extract 2 weeks before NNK injection (pre-NNK) and (iii) this extract 10 weeks after NNK injection (post-NNK). We examined the metabolite landscape of the gut microbiota by a high-throughput metabolomics approach. The Euglena water extract treatment greatly attenuated NNK-induced tumorigenesis in lungs of A/J mice. A Partial Least-Squares Discriminant Analysis demonstrated a separation of the fecal metabolites between the control and treatment groups. Using the untargeted metabolomics, we identified 20 potential metabolites that were differentially expressed in the Euglena extract (pre- and post-NNK) treatment groups as compared to the control group. Specifically, succinate, malate, triethanolamine, acetylserine were increased with the Euglena water extract treatment in comparison to the control. These metabolites are involved in the biosynthesis of short-chain fatty acids (SCFA). Furthermore, using the targeted analysis of SCFA, we observed a significant increase in acetic acid in the feces of mice treated with Euglena water extract both before and after NNK exposure; however, butyric and propionic acids were significantly higher in only post-treated mice. Moreover, in vitro treatment of both human and murine lung cancer cells with SCFA significantly suppressed their proliferation. The present study indicated that treating with the Euglena water extract both pre- and post-NNK exposure greatly inhibits NNK-induced lung tumorigenesis in mice even after early tumorigenesis has been established. This study also found that Euglena water extract increases the levels of SCFA and their precursors in the feces of the treated mice indicating a role of gut microbiota in suppressing the NNK-induced tumorigenesis. This study was supported by 2017 EUGLENA-RC2 (MT and JC), Kansas State University Johnson Cancer Research Center (MT and JC), and NIH grant P20 GM103418 (MT).
Citation Format: Deepa Upreti, Susumu Ishiguro, Ayaka Nakashima, Kengo Suzuki, Jeffrey Comer, Masaaki Tamura. Euglena water extract attenuates lung tumorigenesis induced by tobacco-specific carcinogen through modulation of gut microbiota metabolites [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2022; 2022 Apr 8-13. Philadelphia (PA): AACR; Cancer Res 2022;82(12_Suppl):Abstract nr 5944.
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Affiliation(s)
| | | | - Ayaka Nakashima
- 2Central Research Laboratory, Euglena Co. Ltd., Tokyo, Japan
| | - Kengo Suzuki
- 2Central Research Laboratory, Euglena Co. Ltd., Tokyo, Japan
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Murata O, Suzuki K, Takeuchi T. AB0545 THYMUS VARIANTS ON IMAGING IN PATIENTS WITH PRIMARY SJÖGREN’S SYNDROME AND POLYMYOSITIS/DERMATOMYOSITIS PATIENTS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.4255] [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
BackgroundThe thymus, a primary lymphoid organ, plays a crucial role in immune system homeostasis [1,2]. Although several studies of an association between radiographic thymus variants and serological features in systemic autoimmune diseases such as systemic scleroderma, have been reported [3-6], information in patients with other systemic autoimmune disease, especially in primary Sjögren’s syndrome (pSS) or polymyositis/dermatomyositis (PM/DM) patients, is quite limited.ObjectivesWe investigated the association between radiographic thymus variants and clinical and immunological features in patients with pSS and PM/DM, and clarified its significance.MethodsPatients with pSS and PM/DM were randomly selected from all patients who had visited our department and underwent chest CT scan between April 2009 and March 2019. Patients with thymoma or thymic cyst and those aged less than 30 years were excluded. Thymic enlargement and thymus attenuation score in axial images of CT scans were quantitatively interpreted. We defined thymic enlargement as a thickness of more than 13 mm and graded the score by a four-point scale (score 0-3) according to previous studies [7, 8]. Association with radiographic thymus variants and clinical and immunological features was statistically analyzed.Results72 pSS and 47 PM/DM patients were enrolled. 90% and 63.8% were women and mean age was 62.7 ± 12.2 and 56.2 ± 13.7 years in pSS and PM/DM patients, respectively. Thymic enlargement was found in 16 (22.2%) and 14 (29.8%) patients with pSS and PM/DM, respectively. Thymus attenuation (score ≥ 2) was found in 11 (15.3%) and 9 (19.1%) patients with pSS and PM/DM, respectively. These findings were more frequent than in non-connective tissue diseases patients (9.1% and 9.1%, respectively). In pSS patients, radiographic thymus variants, both thymic enlargement and the thymus attenuation score, were significantly positively associated with body weight (P < 0.0073 and 0.037, respectively). Although there was no significant difference between immunological features such as titres of serum RF, the ratio of RF-positivity, SS-A antibody-positivity or SS-B antibody-positivity, and radiographic thymus variants, titres of serum RF tended to be positively associated with thymic enlargement (P = 0.057). In PM/DM patients, thymic enlargement was significantly positively associated with titres of serum RF (P = 0.046), and the thymus attenuation score was significantly positively associated with titres of serum IgG (P = 0.042) and significantly negatively associated with age (P = 0.033). There was no significant difference between the ratio of myositis specific antibody-positivity and radiographic thymus variants.ConclusionRadiographic thymus variants were frequently observed in pSS and PM/DM patients, and particularly, in case of PM/DM, may reflect an abnormal immune response involved in the pathogenesis.References[1]Gorozny JJ, et al. Trends Immunol 2001;22:251-255,[2]Seddon B, et al. Immunol Today 2000;21:94-99,[3]Truffault F, et al. Clin Rev Allergy Immunol 2017; 52:108-124,[4]Berrih-Aknin S, et al. J Autoimmun 2014;52:90-110,[5]Colaci M, et al. Rheumatology 2014;53:732-36,[6]Murata O, et al. Rheumatology 2021;60:5595-5600,[7]Ackman JB, et al. Radiology 2013;268:245-53,[8]Naidich DP, et al. Philadelphia: Lippincott-Raven 1999:57-73.AcknowledgementsI have no acknowledgements to declare.Disclosure of InterestsNone declared
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Ichimura T, Ogawa C, Murata H, Miyahara K, Yuge S, Tsukioka R, Kado K, Yoshimura T, Suzuki K, Nomura H, Shimizu H. Community pharmacists' measurement of health-related quality of life in outpatients taking high-risk drugs. Pharmazie 2022; 77:202-206. [PMID: 35751159 DOI: 10.1691/ph.2022.1914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Patients experiencing severe side effects when taking high-risk drugs may have a significantly reduced health-related quality of life (QOL); therefore, it is important to identify changes in the health-related QOL in these patients. This study aimed to determine the health-related QOL in community pharmacy outpatients taking high-risk drugs. This prospective observational study was conducted in 29 community pharmacies with 71 pharmacists in 12 regions and cities in Japan from October to December 2020 and 760 patients were enrolled. Using descriptive questionnaires of EuroQOL-5-dimensions-5-levels (EQ-5D-5L), community pharmacists obtained health-related QOL data from outpatients taking high-risk drugs. The mean health-related QOL of all outpatients was 0.869. The health-related QOL decreased with increasing age. The outpatient health-related QOL was 0.700, 0.763, 0.785, and 0.817 when taking antiepileptic, antidepressant, digitalis, and antiarrhythmic drugs, respectively, which was lower than the average health-related QOL of all outpatients. Mobility and pain/ discomfort accounted for a large proportion of the decline in the health-related QOL with increasing age. There were no significant differences in personal care with increasing age; however, the number of outpatients with mobility, normal activity, and pain challenges decreased with age. In contrast, outpatients aged <65 years with anxiety/depression showed a lower than overall average health-related QOL. To the best of our knowledge, this is the first study in Japan to report an investigation by community pharmacists regarding health-related QOL assessment in outpatients taking high-risk drugs.
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Affiliation(s)
- T Ichimura
- Study group for Comprehensive Cost-Effectiveness Analysis of Pharmacotherapy, Koto-ku, Tokyo; Department of Hospital Pharmaceutics, School of Pharmacy, Showa University, Shinagawa-ku, Tokyo
| | - C Ogawa
- Study group for Comprehensive Cost-Effectiveness Analysis of Pharmacotherapy, Koto-ku, Tokyo; Department of Pharmacy, National Hospital Organization Tokyo Medical Center, Meguro-ku, Tokyo
| | - H Murata
- Study group for Comprehensive Cost-Effectiveness Analysis of Pharmacotherapy, Koto-ku, Tokyo; QOL Co., Ltd., Minato-ku, Tokyo
| | | | - S Yuge
- Nihon Chouzai Co., Ltd., Chiyoda-ku, Tokyo
| | - R Tsukioka
- AIN PHARMACIEZ INC., Sapporo city, Hokkaido
| | - K Kado
- KRAFT Inc., Chiyoda-ku, Tokyo
| | | | - K Suzuki
- Division of Applied Pharmaceutical Education and Research, Hoshi University, Shinagawa-ku, Tokyo
| | - H Nomura
- Department of Date Science / Pharmacy, National Cancer Center Hospital East, Kashiwa city, Chiba
| | - H Shimizu
- Study group for Comprehensive Cost-Effectiveness Analysis of Pharmacotherapy, Koto-ku, Tokyo; Department of Pharmacy, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Koto-ku, Tokyo; Department of Nursing, School of Nursing and Rehabilitation Sciences, Showa University, Shinagawa-ku, Tokyo, Japan;,
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Kajio N, Suzuki K, Matsumoto K, Iijima H, Nakamura S, Ishizawa Y, Inamo J, Takeshita M, Yoshimoto K, Kaneko Y, Takeuchi T. POS0530 MOLECULAR SIGNATURE IN SUSTAINED CLINICAL REMISSION INDUCED BY TOCILIZUMAB IN PATIENTS WITH RHEUMATOID ARTHRITIS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.1680] [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: 11/04/2022]
Abstract
BackgroundClinical remission is a clinical goal in the treatment of rheumatoid arthritis (RA). Sustained, biologics-free and true remission is an unachieved goal of the “treat-to-target” approach in most patients, and the determinants for achievement are still unclear. In our recent prospective study using multiomics analysis, we proposed that a molecular signature in peripheral whole blood can be a predictor for subsequent disease activity or activities of daily living.1 We also showed that tocilizumab (TCZ) induced deep clinical remission associated with gene expression in peripheral CD4+ T cells.2ObjectivesTo consolidate and expand our hypothesis, we investigated the significance of molecular signatures in sustained remission in a larger scale cohort.MethodsTo build and validate the diagnostic model, we collected 73 peripheral blood samples from 30 patients with active RA, 30 patients in clinical remission induced by TCZ and 13 healthy controls. We then collected another 23 samples at a point before TCZ was halted due to sustained clinical remission. In total, 96 samples were analyzed by a multiomics platform, which included RNA sequencing and comprehensive proteomics.ResultsWe first developed an optimized partial least-squares regression (PLSR) model using data from 5,436 genes and 255 proteins extracted in our previous model.1 The odds ratio in the model clearly reflected the clinical state with high fidelity (Figure 1). In that study, TCZ induced nearly half of the patients with clinical remission into molecular remission, with an odds ratio of less than zero. To clarify the characteristics of the molecular signature at sustained clinical remission under TCZ continuation, 23 samples were applied to the model. The odds ratio was largely the same as that for clinical remission. Next, we investigated the association with disease flare after cessation of TCZ. At some points before cessation, the median odds ratio in patients who experienced disease flare after stopping TCZ tended to be higher than that in patients with sustained remission after stopping TCZ in the transcriptomics model but not in the proteomics model. Thirty-five differentially expressed genes were identified between the two groups under the conditions of a >1.5-fold change and P-value<0.05.Figure 1.Odds ratio in the partial least-squares regression model using transcriptomics (A) and proteomics (B) data from rheumatoid arthritis and healthy control groupsConclusionOur larger scale study validated the idea in our previous study that TCZ induces molecular remission. A certain substantial gap associated with prognosis after quitting TCZ may exist as a molecular signature of sustained clinical remission induced by TCZ. These multiomics data sets enable us to understand sustained clinical remission at a molecular level.References[1]Nat Commun. 9(1):2775, 2018, 2) Sci Rep.11(1):16691, 2021Graphs:AcknowledgementsWe acknowledge funding by Chugai Pharmaceutical Co., Ltd.Disclosure of InterestsNobuhiko Kajio: None declared, Katsuya Suzuki Speakers bureau: AbbVie, AsahiKasei, Astellas, Ayumi, Bristol-Myers Squibb, Chugai, Eisai, Eli Lilly, Gilead, Janssen, Mitsubishi Tanabe, Pfizer, Sanofi, Viatris, Consultant of: AbbVie, Asahi Kasei, Janssen, Pfizer, Grant/research support from: Chugai, Daiichi-Sankyo, Eli Lilly, Mitsubishi Tanabe, Ono, Takeda, Kotaro Matsumoto: None declared, Hiroshi Iijima: None declared, Seiji Nakamura: None declared, Yohei Ishizawa: None declared, Jun Inamo: None declared, Masaru Takeshita: None declared, Keiko Yoshimoto: None declared, Yuko Kaneko Speakers bureau: Chugai, Consultant of: Chugai, Grant/research support from: Chugai, Tsutomu Takeuchi Speakers bureau: Chugai, Consultant of: Chugai, Grant/research support from: Chugai.
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Hiramoto K, Saito S, Hanaoka H, Suzuki K, Kikuchi J, Fukui H, Takano R, Miyoshi F, Seki N, Sugahara K, Kaneko Y, Takeuchi T. POS0459 APTAMER-BASED PROTEOMIC SCREENING IN IDENTIFICATION OF PATHOGENIC SIGNAL PATHWAY AND URINARY BIOMARKERS ASSOCIATED WITH HISTOLOGICAL FINDINGS IN LUPUS NEPHRITIS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.2698] [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: 11/04/2022]
Abstract
BackgroundThe current gold standard for the diagnosis and classification, assessment of the severity of lupus nephritis (LN) is a renal biopsy. On the other hand, since the procedure is highly invasive, there is a pressing need to identify biomarkers for predicting the presence and its histological severity of LN. In addition, the background pathogenesis of each histological findings is not clearly understood.ObjectivesThe purpose of this study was to elucidate the urine biomarkers for predicting the presence and the severity of histological findings of LN, and to search the pathogenic signal pathway.MethodsUrine samples from 24 biopsy-proven active LN patients were initially screened for the levels of 1305 distinct human proteins using an aptamer-based-targeted proteomic assay. We developed histological scoring system based on ISN/RPS lesion definitions and classification, NIH activity and chronicity score. Two experienced evaluators assessed the histological scores. Cluster analysis and pathway analysis were performed.ResultsA total of 24 LN patients were included: 20 (83%) had a proliferative histological class (III or IV +/-V), 4 (17%) pure membranous (V). Through cluster analysis, several histological subgroups were extracted according to correlation with each histological finding, and proteins which corelated with each histological scores were analyzed. We focused on two subgroups: one in which including active glomerular histological findings (endocapillary hypercellularity, karyorrhexis, neutrophil infiltration, subendothelial deposits) and the other in which including interstitial histological findings (interstitial inflammation, interstitial fibrosis, tubular atrophy). Histological scores in the former group showed strong positive correlation with protein group which contained 59 proteins (Group A), including CCL21, CXCL10, VCAM1. Histological scores in the latter group corelated with another protein group which contained 85 proteins (Group B), including MCP-1, CCL11. Ingenuity Pathway Analysis showed 16 pathways (PDGF Signaling, Granulocyte Adhesion and Diapedesis, etc) were upregulated in Group A and 11 pathways (IL-17 signaling, Fibrosis signaling pathway, etc) upregulated in Group B. Among group A and group B urine proteins, those showed strong correlation between respective histological findings were validated with ELISA assays.ConclusionAn aptamer-based-targeted proteomic assay screening by combining with renal histological scoring system suggested several urine proteins can predict the severity and the presence of major renal histological findings, and suggested to be related with the pathogenesis in patients with LN.Disclosure of InterestsKazuoto Hiramoto: None declared, Shuntaro Saito: None declared, Hironari Hanaoka: None declared, Katsuya Suzuki: None declared, Jun Kikuchi: None declared, Hiroyuki Fukui: None declared, Ryo Takano Employee of: Mitsubishi Tanabe Pharma Corporation Sohyaku, Fumihiko Miyoshi Employee of: Mitsubishi Tanabe Pharma Corporation Sohyaku, Noriyasu Seki Employee of: Mitsubishi Tanabe Pharma Corporation Sohyaku, Kunio Sugahara Employee of: Mitsubishi Tanabe Pharma Corporation Sohyaku, Yuko Kaneko: None declared, Tsutomu Takeuchi: None declared.
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Kondo Y, Takeshita M, Uwamino Y, Namkoong H, Saito S, Kikuchi J, Hanaoka H, Suzuki K, Hasegawa N, Murata M, Kaneko Y. POS0257 COMPARISON OF SARS-CoV-2 VACCINE RESPONSE IN PATIENTS WITH INFLAMMATORY RHEUMATIC DISEASE; mRNA-1273 VACCINE INDUCES HIGHER HUMORAL IMMUNOGENICITY THAN BNT162b2. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.4214] [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: 11/04/2022]
Abstract
BackgroundThe SARS-CoV-2 messenger RNA (mRNA) vaccines BNT162b2 (Pfizer-BioNTech) and mRNA-1273 (Moderna) have benefitted all countries amid the coronavirus disease 2019 (COVID-19) crisis. Whereas both of them have shown efficacy in preventing COVID-19 illness in healthy participants, there is paucity of data about immunogenicity and safety of mRNA COVID-19 vaccines in patients with autoimmune, inflammatory rheumatic disease. Recent observational studies evaluated mainly BNT162b2, suggesting that glucocorticoids, immunosuppressive agents impair SARS-CoV-2 vaccine responses. However, difference in immune reactions and safety between BNT162b2 and mRNA-1273 have not been clarified in patients with inflammatory rheumatic diseases.ObjectivesTo assess humoral and T cell immune responses and safety profiles after two doses of different mRNA vaccine against SARS-CoV-2; BNT162b2 and mRNA-1273.MethodsWe enrolled consecutive, previously uninfected patients with inflammatory rheumatic diseases receiving mRNA vaccine including BNT162b2 and mRNA-1273. Healthy participants receiving BNT162b2 were also recruited as control. Blood samples were obtained 3weeks, 2 months, 3 months, 4 months, and 6 months after second dose of vaccines. We measured titres of neutralizing antibodies against SARS-CoV-2 and calculated seroconversion rates to evaluate humoral responses. We also assessed T-cell immunity responses by using interferon releasing assay against SARS-CoV-2 in a part of the patients. Answers to questionnaires about adverse reactions were obtained from participants.ResultsA total of 974 patients with inflammatory rheumatic diseases and healthy 630 control participants were enrolled. Among them, 796 patients received BNT162b2, 178 patients received mRNA-1273, and all control participants received BNT162b2. Seroconversion rates and neutralizing antibody titres 3 weeks after vaccination were significantly higher in patients with mRNA-1273 and healthy participants with BNT162b2 compared with patients with BNT162b2; seroconversion rates, 97.2% vs 99.5% vs 83.3%, p<0.001; titers of neutralizing antibodies, 29.4±33.9 IU/mL vs 23.9±14.2 IU/mL vs 10.8±16.5 IU/mL, p<0.001, respectively. On another front, T cell reaction against SARS-CoV-2 was similar in both patients with mRNA-1273 and BNT162b2; interferon gamma levels for antigen 1, 1.2±2.1 IU/mL vs 0.8±2.5 IU/mL, p=0.23; and for antigen 2, 1.4±1.9 IU/mL vs 1.0±2.1 IU/mL, p=0.11, respectively. Regarding adverse reaction of each mRNA vaccine, the frequency of systemic adverse reactions including fever and general fatigue are also significantly higher in patients with mRNA-1273 and healthy controls than patients with BNT162b2; fever, 48.0% vs 44.9% vs 10.2%, p<0.001; general fatigue, 70.4% vs 61.8% vs 31.2%, p<0.001, respectively). In longitudinal measurement, neutralizing antibody titres in patients with BNT162b2 were decreased more rapidly than those in healthy controls; 3.3±3.2 IU/mL in patients with BNT162b2 at 4 months and 3.2±4.7 IU/mL in healthy controls with BNT162b2 at 6 months. We identified age, glucocorticoid dose (prednisolone > 7.5mg), use of immunosuppressants including methotrexate, mycophenolate, cyclophosphamide, and tacrolimus are associated with rapid attenuation of humoral responses in patients with BNT162b2.ConclusionOur results demonstrated a significant higher humoral immunogenicity and frequency of systemic adverse reaction of the SARS-CoV-2 mRNA-1273 (Moderna) compared with the BNT162b2 (Pfizer-BioNTech) in inflammatory rheumatic disease patients. Glucocorticoid and immunosuppressive agents impaired induction and sustention of neutralizing antibody, and earlier third booster vaccination may be required within 4 months, especially for those receiving BNT162b2.References[1]Steensels D, Pierlet N, Penders J et al. JAMA. 2021;326(15):1533–1535.[2]Friedman MA, Curtis JR and Winthrop KL. Ann Rheum Dis 2021;80:1255–1265.Disclosure of InterestsNone declared
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Hashimoto T, Aikawa S, Akaishi T, Asano H, Bazzi M, Bennett DA, Berger M, Bosnar D, Butt AD, Curceanu C, Doriese WB, Durkin MS, Ezoe Y, Fowler JW, Fujioka H, Gard JD, Guaraldo C, Gustafsson FP, Han C, Hayakawa R, Hayano RS, Hayashi T, Hays-Wehle JP, Hilton GC, Hiraiwa T, Hiromoto M, Ichinohe Y, Iio M, Iizawa Y, Iliescu M, Ishimoto S, Ishisaki Y, Itahashi K, Iwasaki M, Ma Y, Murakami T, Nagatomi R, Nishi T, Noda H, Noumi H, Nunomura K, O'Neil GC, Ohashi T, Ohnishi H, Okada S, Outa H, Piscicchia K, Reintsema CD, Sada Y, Sakuma F, Sato M, Schmidt DR, Scordo A, Sekimoto M, Shi H, Shirotori K, Sirghi D, Sirghi F, Suzuki K, Swetz DS, Takamine A, Tanida K, Tatsuno H, Trippl C, Uhlig J, Ullom JN, Yamada S, Yamaga T, Yamazaki T, Zmeskal J. Measurements of Strong-Interaction Effects in Kaonic-Helium Isotopes at Sub-eV Precision with X-Ray Microcalorimeters. Phys Rev Lett 2022; 128:112503. [PMID: 35363014 DOI: 10.1103/physrevlett.128.112503] [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] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 01/25/2022] [Indexed: 06/14/2023]
Abstract
We have measured the 3d→2p transition x rays of kaonic ^{3}He and ^{4}He atoms using superconducting transition-edge-sensor microcalorimeters with an energy resolution better than 6 eV (FWHM). We determined the energies to be 6224.5±0.4(stat)±0.2(syst) eV and 6463.7±0.3(stat)±0.1(syst) eV, and widths to be 2.5±1.0(stat)±0.4(syst) eV and 1.0±0.6(stat)±0.3(stat) eV, for kaonic ^{3}He and ^{4}He, respectively. These values are nearly 10 times more precise than in previous measurements. Our results exclude the large strong-interaction shifts and widths that are suggested by a coupled-channel approach and agree with calculations based on optical-potential models.
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Affiliation(s)
- T Hashimoto
- Advanced Science Research Center, Japan Atomic Energy Agency (JAEA), Tokai 319-1184, Japan
- RIKEN Cluster for Pioneering Research, RIKEN, Wako 351-0198, Japan
| | - S Aikawa
- Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551, Japan
| | - T Akaishi
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - H Asano
- RIKEN Cluster for Pioneering Research, RIKEN, Wako 351-0198, Japan
| | - M Bazzi
- Laboratori Nazionali di Frascati dell' INFN, Frascati I-00044, Italy
| | - D A Bennett
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - M Berger
- Stefan-Meyer-Institut für subatomare Physik, Vienna A-1030, Austria
| | - D Bosnar
- Department of Physics, Faculty of Science, University of Zagreb, Zagreb 10000, Croatia
| | - A D Butt
- Politecnico di Milano, Dipartimento di Elettronica, Milano 20133, Italy
| | - C Curceanu
- Laboratori Nazionali di Frascati dell' INFN, Frascati I-00044, Italy
| | - W B Doriese
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - M S Durkin
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - Y Ezoe
- Department of Physics, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - J W Fowler
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - H Fujioka
- Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551, Japan
| | - J D Gard
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - C Guaraldo
- Laboratori Nazionali di Frascati dell' INFN, Frascati I-00044, Italy
| | - F P Gustafsson
- Stefan-Meyer-Institut für subatomare Physik, Vienna A-1030, Austria
| | - C Han
- RIKEN Cluster for Pioneering Research, RIKEN, Wako 351-0198, Japan
| | - R Hayakawa
- Department of Physics, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - R S Hayano
- Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
| | - T Hayashi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara 252-5210, Japan
| | - J P Hays-Wehle
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - G C Hilton
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - T Hiraiwa
- Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki 567-0047, Japan
| | - M Hiromoto
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - Y Ichinohe
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - M Iio
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - Y Iizawa
- Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551, Japan
| | - M Iliescu
- Laboratori Nazionali di Frascati dell' INFN, Frascati I-00044, Italy
| | - S Ishimoto
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - Y Ishisaki
- Department of Physics, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - K Itahashi
- RIKEN Cluster for Pioneering Research, RIKEN, Wako 351-0198, Japan
| | - M Iwasaki
- RIKEN Cluster for Pioneering Research, RIKEN, Wako 351-0198, Japan
| | - Y Ma
- RIKEN Cluster for Pioneering Research, RIKEN, Wako 351-0198, Japan
| | - T Murakami
- Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
| | - R Nagatomi
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - T Nishi
- RIKEN Nishina Center for Accelerator-Based Science, RIKEN, Wako 351-0198, Japan
| | - H Noda
- Department of Earth and Space Science, Osaka University, Toyonaka 560-0043, Japan
| | - H Noumi
- Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki 567-0047, Japan
| | - K Nunomura
- Department of Physics, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - G C O'Neil
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - T Ohashi
- Department of Physics, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - H Ohnishi
- Research Center for Electron Photon Science (ELPH), Tohoku University, Sendai 982-0826, Japan
| | - S Okada
- RIKEN Cluster for Pioneering Research, RIKEN, Wako 351-0198, Japan
- Engineering Science Laboratory, Chubu University, Kasugai 487-8501, Japan
| | - H Outa
- RIKEN Cluster for Pioneering Research, RIKEN, Wako 351-0198, Japan
| | - K Piscicchia
- Laboratori Nazionali di Frascati dell' INFN, Frascati I-00044, Italy
| | - C D Reintsema
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - Y Sada
- Research Center for Electron Photon Science (ELPH), Tohoku University, Sendai 982-0826, Japan
| | - F Sakuma
- RIKEN Cluster for Pioneering Research, RIKEN, Wako 351-0198, Japan
| | - M Sato
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - D R Schmidt
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - A Scordo
- Laboratori Nazionali di Frascati dell' INFN, Frascati I-00044, Italy
| | - M Sekimoto
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - H Shi
- Stefan-Meyer-Institut für subatomare Physik, Vienna A-1030, Austria
| | - K Shirotori
- Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki 567-0047, Japan
| | - D Sirghi
- Laboratori Nazionali di Frascati dell' INFN, Frascati I-00044, Italy
| | - F Sirghi
- Laboratori Nazionali di Frascati dell' INFN, Frascati I-00044, Italy
| | - K Suzuki
- Stefan-Meyer-Institut für subatomare Physik, Vienna A-1030, Austria
| | - D S Swetz
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - A Takamine
- RIKEN Cluster for Pioneering Research, RIKEN, Wako 351-0198, Japan
| | - K Tanida
- Advanced Science Research Center, Japan Atomic Energy Agency (JAEA), Tokai 319-1184, Japan
| | - H Tatsuno
- Department of Physics, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - C Trippl
- Stefan-Meyer-Institut für subatomare Physik, Vienna A-1030, Austria
| | - J Uhlig
- Chemical Physics, Lund University, Lund 22100, Sweden
| | - J N Ullom
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - S Yamada
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - T Yamaga
- RIKEN Cluster for Pioneering Research, RIKEN, Wako 351-0198, Japan
| | - T Yamazaki
- Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
| | - J Zmeskal
- Stefan-Meyer-Institut für subatomare Physik, Vienna A-1030, Austria
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Hanada A, Morimoto R, Horio Y, Shichiri M, Nakashima A, Ogawa T, Suzuki K, Sumitani H, Ogata T, Isegawa Y. Influenza virus entry and replication inhibited by 8-prenylnaringenin from Citrullus lanatus var. citroides (wild watermelon). Food Sci Nutr 2022; 10:926-935. [PMID: 35282012 PMCID: PMC8907720 DOI: 10.1002/fsn3.2725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 12/11/2021] [Accepted: 12/22/2021] [Indexed: 12/05/2022] Open
Abstract
We previously demonstrated the anti-influenza activity of Citrullus lanatus var. citroides (wild watermelon, WWM); however, the active ingredient was unknown. Here, we performed metabolomic analysis to evaluate the ingredients of WWM associated with antiviral activity. Many low-molecular weight compounds were identified, with flavonoids accounting for 35% of all the compounds in WWM juice. Prenylated flavonoids accounted for 30% of the flavonoids. Among the measurable components of phytoestrogens in WWM juice, 8-prenylnaringenin showed the highest antiviral activity. We synthesized 8-prenylnaringenin and used liquid chromatography-mass spectrometry to quantitate the active ingredient in WWM. The antiviral activities of 8-prenylnaringenin were observed against H1N1 and H3N2 influenza A subtypes and influenza B viruses. Moreover, 8-prenylnaringenin was found to inhibit virus adsorption and late-stage virus replication, suggesting that the mechanisms of action of 8-prenylnaringenin may differ from those of amantadine and oseltamivir. We confirmed that 8-prenylnaringenin strongly inhibited the viral entry of all the influenza virus strains that were examined, including those resistant to the anti-influenza drugs oseltamivir and amantadine. This result indicates that 8-prenylnaringenin may activate the host cell's defense mechanisms, rather than directly acting on the influenza virus. Since 8-prenylnaringenin did not inhibit late-stage virus replication of oseltamivir-resistant strains, 8-prenylnaringenin may interact directly with viral neuraminidase. These results are the first report on the anti-influenza virus activity of 8-prenylnaringenin. Our results highlight the potential of WWM and phytoestrogens to develop effective prophylactic and therapeutic approaches to the influenza virus.
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Affiliation(s)
- Akari Hanada
- Department of Food Sciences and NutritionMukogawa Women’s UniversityNishinomiyaJapan
| | - Ryosuke Morimoto
- Department of Food Sciences and NutritionMukogawa Women’s UniversityNishinomiyaJapan
- Present address:
Faculty of Human Life ScienceShikoku UniversityTokushimaJapan
| | - Yuka Horio
- Department of Food Sciences and NutritionMukogawa Women’s UniversityNishinomiyaJapan
| | - Mototada Shichiri
- Biomedical Research InstituteNational Institute of Advanced Industrial Science and Technology (AIST)IkedaJapan
| | | | | | | | | | - Tokutaro Ogata
- Faculty of Health and Medical SciencesHokuriku UniversityKanazawaJapan
| | - Yuji Isegawa
- Department of Food Sciences and NutritionMukogawa Women’s UniversityNishinomiyaJapan
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Masuda A, Lee JM, Miyata T, Mon H, Sato K, Oyama K, Sakurai Y, Yasuda J, Takahashi D, Ueda T, Kato Y, Nishida M, Karasaki N, Kakino K, Ebihara T, Nagasato T, Hino M, Nakashima A, Suzuki K, Tonooka Y, Tanaka M, Moriyama T, Nakatake H, Fujita R, Kusakabe T. Optimization of SARS-CoV-2 Spike Protein Expression in the Silkworm and Induction of Efficient Protective Immunity by Inoculation With Alum Adjuvants. Front Immunol 2022; 12:803647. [PMID: 35095889 PMCID: PMC8789674 DOI: 10.3389/fimmu.2021.803647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 12/20/2021] [Indexed: 11/13/2022] Open
Abstract
The newly emerged severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is causing a spread of coronavirus disease 2019 (COVID-19) globally. In order to end the COVID-19 pandemic, an effective vaccine against SARS-CoV-2 must be produced at low cost and disseminated worldwide. The spike (S) protein of coronaviruses plays a pivotal role in the infection to host cells. Therefore, targeting the S protein is one of the most rational approaches in developing vaccines and therapeutic agents. In this study, we optimized the expression of secreted trimerized S protein of SARS-CoV-2 using a silkworm-baculovirus expression vector system and evaluated its immunogenicity in mice. The results showed that the S protein forming the trimeric structure was the most stable when the chicken cartilage matrix protein was used as the trimeric motif and could be purified in large amounts from the serum of silkworm larvae. The purified S protein efficiently induced antigen-specific antibodies in mouse serum without adjuvant, but its ability to induce neutralizing antibodies was low. After examining several adjuvants, the use of Alum adjuvant was the most effective in inducing strong neutralizing antibody induction. We also examined the adjuvant effect of paramylon from Euglena gracilis when administered with the S protein. Our results highlight the effectiveness and suitable construct design of the S protein produced in silkworms for the subunit vaccine development against SARS-CoV-2.
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Affiliation(s)
- Akitsu Masuda
- Laboratory of Insect Genome Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Jae Man Lee
- Laboratory of Creative Science for Insect Industries, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Takeshi Miyata
- Department of Biochemistry and Biotechnology, Faculty of Agriculture, Kagoshima University, Kagoshima, Japan
| | - Hiroaki Mon
- Laboratory of Insect Genome Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Keita Sato
- Department of Biochemistry and Biotechnology, Faculty of Agriculture, Kagoshima University, Kagoshima, Japan
| | - Kosuke Oyama
- Laboratory of Protein Structure, Function and Design, Faculty of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Yasuteru Sakurai
- Department of Emerging Infectious Diseases, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan.,National Research Center for the Control and Prevention of Infectious Diseases, Nagasaki University, Nagasaki, Japan
| | - Jiro Yasuda
- Department of Emerging Infectious Diseases, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan.,National Research Center for the Control and Prevention of Infectious Diseases, Nagasaki University, Nagasaki, Japan
| | - Daisuke Takahashi
- Laboratory of Protein Structure, Function and Design, Faculty of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Tadashi Ueda
- Laboratory of Protein Structure, Function and Design, Faculty of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Yuri Kato
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Motohiro Nishida
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, Japan
| | - Noriko Karasaki
- Laboratory of Insect Genome Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Kohei Kakino
- Laboratory of Insect Genome Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Takeru Ebihara
- Laboratory of Insect Genome Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Takumi Nagasato
- Laboratory of Insect Genome Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Masato Hino
- Laboratory of Sanitary Entomology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Ayaka Nakashima
- The Research and Development Department, Euglena Co., Ltd, Tokyo, Japan
| | - Kengo Suzuki
- The Research and Development Department, Euglena Co., Ltd, Tokyo, Japan
| | - Yoshino Tonooka
- Laboratory of Insect Genome Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Miyu Tanaka
- Laboratory of Insect Genome Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Takato Moriyama
- Laboratory of Insect Genome Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | | | - Ryosuke Fujita
- Laboratory of Sanitary Entomology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Takahiro Kusakabe
- Laboratory of Insect Genome Science, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
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Upreti D, Ishiguro S, Robben N, Nakashima A, Suzuki K, Comer J, Tamura M. Oral Administration of Water Extract from Euglena gracilis Alters the Intestinal Microbiota and Prevents Lung Carcinoma Growth in Mice. Nutrients 2022; 14:nu14030678. [PMID: 35277036 PMCID: PMC8839094 DOI: 10.3390/nu14030678] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 02/02/2022] [Accepted: 02/04/2022] [Indexed: 02/01/2023] Open
Abstract
The antitumor effects of a partially purified water extract from Euglena gracilis (EWE) and EWE treated by boiling (bEWE) were evaluated using orthotopic lung cancer syngeneic mouse models with Lewis lung carcinoma (LLC) cells. Daily oral administration of either EWE or bEWE started three weeks prior to the inoculation of LLC cells significantly attenuated tumor growth as compared to the phosphate buffered saline (PBS) control, and the attenuation was further enhanced by bEWE. The intestinal microbiota compositions in both extract-treated groups were more diverse than that in the PBS group. Particularly, a decrease in the ratio of Firmicutes to Bacteroidetes and significant increases in Akkermansia and Muribaculum were observed in two types of EWE-treated groups. Fecal microbiota transplantation (FMT) using bEWE-treated mouse feces attenuated tumor growth to an extent equivalent to bEWE treatment, while tumor growth attenuation by bEWE was abolished by treatment with an antibiotic cocktail. These studies strongly suggest that daily oral administration of partially purified water extracts from Euglena gracilis attenuates lung carcinoma growth via the alteration of the intestinal microbiota.
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Affiliation(s)
- Deepa Upreti
- Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine, Manhattan, KS 66506, USA; (D.U.); (S.I.); (N.R.); (J.C.)
| | - Susumu Ishiguro
- Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine, Manhattan, KS 66506, USA; (D.U.); (S.I.); (N.R.); (J.C.)
| | - Nicole Robben
- Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine, Manhattan, KS 66506, USA; (D.U.); (S.I.); (N.R.); (J.C.)
| | - Ayaka Nakashima
- Euglena Co., Ltd., Minato-ku, Tokyo 108-0014, Japan; (A.N.); (K.S.)
| | - Kengo Suzuki
- Euglena Co., Ltd., Minato-ku, Tokyo 108-0014, Japan; (A.N.); (K.S.)
| | - Jeffrey Comer
- Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine, Manhattan, KS 66506, USA; (D.U.); (S.I.); (N.R.); (J.C.)
| | - Masaaki Tamura
- Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine, Manhattan, KS 66506, USA; (D.U.); (S.I.); (N.R.); (J.C.)
- Correspondence: ; Tel.: +1-(785)-532-4825; Fax: +1-(785)-532-4557
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Tang T, Liu X, Yuan Y, Kiya R, Shen Y, Zhang T, Suzuki K, Tanaka Y, Li M, Hosokawa Y, Yalikun Y. Dual-frequency impedance assays for intracellular components in microalgal cells. Lab Chip 2022; 22:550-559. [PMID: 35072196 DOI: 10.1039/d1lc00721a] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Intracellular components (including organelles and biomolecules) at the submicron level are typically analyzed in situ by special preparation or expensive setups. Here, a label-free and cost-effective approach of screening microalgal single-cells at a subcellular resolution is available based on impedance cytometry. To the best of our knowledge, it is the first time that the relationships between impedance signals and submicron intracellular organelles and biomolecules are shown. Experiments were performed on Euglena gracilis (E. gracilis) cells incubated under different incubation conditions (i.e., aerobic and anaerobic) and 15 μm polystyrene beads (reference) at two distinct stimulation frequencies (i.e., 500 kHz and 6 MHz). Based on the impedance detection of tens of thousands of samples at a throughput of about 900 cells per second, three metrics were used to track the changes in biophysical properties of samples. As a result, the electrical diameters of cells showed a clear shrinkage in cell volume and intracellular components, as observed under a microscope. The morphology metric of impedance pulses (i.e., tilt index) successfully characterized the changes in cell shape and intracellular composition distribution. Besides, the electrical opacity showed a stable ratio of the intracellular components to cell volume under the cellular self-regulation. Additionally, simulations were used to support these findings and to elucidate how submicron intracellular components and cell morphology affect impedance signals, providing a basis for future improvements. This work opens up a label-free and high-throughput way to analyze single-cell intracellular components by impedance cytometry.
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Affiliation(s)
- Tao Tang
- Division of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan.
| | - Xun Liu
- Division of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan.
| | - Yapeng Yuan
- Center for Biosystems Dynamics Research (BDR), RIKEN, 1-3 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Ryota Kiya
- Division of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan.
| | - Yigang Shen
- Center for Biosystems Dynamics Research (BDR), RIKEN, 1-3 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Tianlong Zhang
- Division of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan.
- School of Engineering, Macquarie University, Sydney, 2109, Australia
| | | | - Yo Tanaka
- Center for Biosystems Dynamics Research (BDR), RIKEN, 1-3 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Ming Li
- School of Engineering, Macquarie University, Sydney, 2109, Australia
| | - Yoichiroh Hosokawa
- Division of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan.
| | - Yaxiaer Yalikun
- Division of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan.
- Center for Biosystems Dynamics Research (BDR), RIKEN, 1-3 Yamadaoka, Suita, Osaka, 565-0871, Japan
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Miyazawa Y, Nomura M, Syuto T, Seiji A, Sekine Y, Koike H, Hiroshi M, Suzuki K. The relationship between adherent perinephric fat and sex hormone levels in serum and perinephric fat tissue of patients treated by robotic assisted partial nephrectomy. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00298-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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45
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Kadono T, Tomaru Y, Sato N, Watanabe Y, Suzuki K, Yamada K, Adachi M. Characterization of Chaetoceros lorenzianus-infecting DNA virus-derived promoters of genes from open reading frames of unknown function in Phaeodactylum tricornutum. Mar Genomics 2022; 61:100921. [PMID: 35030498 DOI: 10.1016/j.margen.2021.100921] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 12/22/2021] [Accepted: 12/23/2021] [Indexed: 11/29/2022]
Abstract
Promoters are key elements for the regulation of gene expression. Recently, we investigated the activity of promoters derived from marine diatom-infecting viruses (DIVs) in marine diatoms. Previously, we focused on potential promoter regions of the replication-associated protein gene and the capsid protein gene of the DIVs. In addition to these genes, two genes of unknown function (VP1 and VP4 genes) have been found in the DIV genomes. In this study, the promoter regions of the VP1 gene and VP4 gene derived from a Chaetoceros lorenzianus-infecting DNA virus (named ClP3 and ClP4, respectively) were newly isolated. ClP4 was found to be a constitutive promoter and displayed the highest activity. In particular, the 3' region of ClP4 (ClP4 3' region) showed a higher promoter activity than full-length ClP4. The ClP4 3' region might involve high-level promoter activity of ClP4. In addition, the ClP4 3' region may be useful for substance production and metabolic engineering of diatoms.
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Affiliation(s)
- Takashi Kadono
- Laboratory of Aquatic Environmental Science, Faculty of Agriculture and Marine Science, Kochi University, Otsu-200, Monobe, Nankoku, Kochi 783-8502, Japan
| | - Yuji Tomaru
- Fisheries Technology Institute, Japan Fisheries Research and Education Agency, National Research and Development Agency, 2-17-5 Maruishi, Hatsukaichi, Hiroshima 739-0452, Japan
| | - Nao Sato
- Laboratory of Aquatic Environmental Science, Faculty of Agriculture and Marine Science, Kochi University, Otsu-200, Monobe, Nankoku, Kochi 783-8502, Japan
| | - Yumi Watanabe
- Laboratory of Aquatic Environmental Science, Faculty of Agriculture and Marine Science, Kochi University, Otsu-200, Monobe, Nankoku, Kochi 783-8502, Japan
| | - Kengo Suzuki
- euglena Co., Ltd, G-BASE Tamachi 2nd and 3rd floor 5-29-11 Shiba Minato-ku, Tokyo 108-0014, Japan; Microalgae Production Control Technology Laboratory, RIKEN, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan
| | - Koji Yamada
- euglena Co., Ltd, G-BASE Tamachi 2nd and 3rd floor 5-29-11 Shiba Minato-ku, Tokyo 108-0014, Japan; Microalgae Production Control Technology Laboratory, RIKEN, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan
| | - Masao Adachi
- Laboratory of Aquatic Environmental Science, Faculty of Agriculture and Marine Science, Kochi University, Otsu-200, Monobe, Nankoku, Kochi 783-8502, Japan.
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Tang T, Liu X, Yuan Y, Zhang T, Kiya R, Yang Y, Suzuki K, Tanaka Y, Li M, Hosokawa Y, Yalikun Y. Assessment of the electrical penetration of cell membranes using four-frequency impedance cytometry. Microsyst Nanoeng 2022; 8:68. [PMID: 35757522 PMCID: PMC9226050 DOI: 10.1038/s41378-022-00405-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 05/16/2022] [Accepted: 05/30/2022] [Indexed: 05/02/2023]
Abstract
The electrical penetration of the cell membrane is vital for determining the cell interior via impedance cytometry. Herein, we propose a method for determining the conductivity of the cell membrane through the tilting levels of impedance pulses. When electrical penetration occurs, a high-frequency current freely passes through the cell membrane; thus, the intracellular distribution can directly act on the high-frequency impedance pulses. Numerical simulation shows that an uneven intracellular component distribution can affect the tilting levels of impedance pulses, and the tilting levels start increasing when the cell membrane is electrically penetrated. Experimental evidence shows that higher detection frequencies (>7 MHz) lead to a wider distribution of the tilting levels of impedance pulses when measuring cell populations with four-frequency impedance cytometry. This finding allows us to determine that a detection frequency of 7 MHz is able to pass through the membrane of Euglena gracilis (E. gracilis) cells. Additionally, we provide a possible application of four-frequency impedance cytometry in the biomass monitoring of single E. gracilis cells. High-frequency impedance (≥7 MHz) can be applied to monitor these biomass changes, and low-frequency impedance (<7 MHz) can be applied to track the corresponding biovolume changes. Overall, this work demonstrates an easy determination method for the electrical penetration of the cell membrane, and the proposed platform is applicable for the multiparameter assessment of the cell state during cultivation.
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Affiliation(s)
- Tao Tang
- Division of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara, 630-0192 Japan
| | - Xun Liu
- Division of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara, 630-0192 Japan
| | - Yapeng Yuan
- Center for Biosystems Dynamics Research (BDR), RIKEN, 1-3 Yamadaoka, Suita, Osaka, 565-0871 Japan
| | - Tianlong Zhang
- Division of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara, 630-0192 Japan
- School of Engineering, Macquarie University, Sydney, 2109 NSW Australia
| | - Ryota Kiya
- Division of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara, 630-0192 Japan
| | - Yang Yang
- Institute of Deep-Sea Science and Engineering, Chinese Academy of Sciences, Sanya, Hainan 572000 P. R. China
| | | | - Yo Tanaka
- Center for Biosystems Dynamics Research (BDR), RIKEN, 1-3 Yamadaoka, Suita, Osaka, 565-0871 Japan
| | - Ming Li
- School of Engineering, Macquarie University, Sydney, 2109 NSW Australia
| | - Yoichiroh Hosokawa
- Division of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara, 630-0192 Japan
| | - Yaxiaer Yalikun
- Division of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara, 630-0192 Japan
- Center for Biosystems Dynamics Research (BDR), RIKEN, 1-3 Yamadaoka, Suita, Osaka, 565-0871 Japan
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Umei M, Akazawa H, Saga-Kamo A, Yagi H, Liu Q, Matsuoka R, Kadowaki H, Shindo A, Nakashima A, Yasuda K, Suzuki K, Komuro I. Oral Administration of Euglena Gracilis Z Alleviates Constipation and Cardiac Dysfunction in a Mouse Model of Isoproterenol-Induced Heart Failure. Circ Rep 2021; 4:83-91. [PMID: 35178484 PMCID: PMC8811226 DOI: 10.1253/circrep.cr-21-0094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 11/26/2021] [Accepted: 11/30/2021] [Indexed: 11/21/2022] Open
Abstract
Background:
Patients with heart failure (HF) often experience gastrointestinal problems such as constipation, diarrhea, and disturbances to drug absorption. In HF, hypoperfusion and congestion cause structural and functional changes in the gut, which, in turn, lead to impaired cardiac function.
Euglena gracilis
Z (hereafter “Euglena”), called
Midorimushi
in Japanese, is a microalga that is used as a food or nutritional supplement. It is unclear whether Euglena is beneficial for bowel habitus and cardiac function in subjects with HF. Methods and Results:
We injected C57BL/6 male mice subcutaneously with isoproterenol (ISO) (20 mg/kg/day) for 7 days to examine bowel movement in HF. Euglena was orally administered to mice on an
ad libitum-feeding to a normal chow containing 2% dietary mixture. ISO induced a decrease in bowel movement and an increase in fecal retention in the cecum, as well as a decrease in left ventricular (LV) contraction. Euglena accelerated intestinal transit, relieved fecal retention, and prevented the alterations in gut pathology in ISO-treated mice. Euglena also suppressed ISO-induced decreases in LV contraction, although it had no significant effect on LV hypertrophy. Conclusions:
The results suggested that oral administration of Euglena alleviated constipation and cardiac dysfunction in a mouse model of ISO-induced HF, and highlight the potential clinical benefit of Euglena in patients with HF in preventing constipation and contractile deterioration.
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Affiliation(s)
- Masahiko Umei
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo
| | - Hiroshi Akazawa
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo
| | - Akiko Saga-Kamo
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo
| | - Hiroki Yagi
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo
| | - Qing Liu
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo
| | - Ryo Matsuoka
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo
| | - Hiroshi Kadowaki
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo
| | - Akito Shindo
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo
| | | | | | | | - Issei Komuro
- Department of Cardiovascular Medicine, Graduate School of Medicine, The University of Tokyo
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48
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Kondo-Takuma Y, Mizuno M, Tsuda Y, Madokoro Y, Suzuki K, Sato T, Takase H, Uchida Y, Adachi KI, Hida H, Borlongan CV, Matsukawa N. Reduction of acetylcholine in the hippocampus of hippocampal cholinergic neurostimulating peptide precursor protein knockout mice. Sci Rep 2021; 11:22072. [PMID: 34764402 PMCID: PMC8586363 DOI: 10.1038/s41598-021-01667-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 11/02/2021] [Indexed: 12/18/2022] Open
Abstract
The cholinergic efferent network from the medial septal nucleus to the hippocampus plays an important role in learning and memory processes. This cholinergic projection can generate theta oscillations in the hippocampus to encode novel information. Hippocampal cholinergic neurostimulating peptide (HCNP), which induces acetylcholine (Ach) synthesis in the medial septal nuclei of an explant culture system, was purified from the soluble fraction of postnatal rat hippocampus. HCNP is processed from the N-terminal region of a 186-amino acid, 21-kDa HCNP precursor protein, also known as Raf kinase inhibitory protein and phosphatidylethanolamine-binding protein 1. Here, we confirmed direct reduction of Ach release in the hippocampus of freely moving HCNP-pp knockout mice under an arousal state by the microdialysis method. The levels of vesicular acetylcholine transporter were also decreased in the hippocampus of these mice in comparison with those in control mice, suggesting there was decreased incorporation of Ach into the synaptic vesicle. These results potently indicate that HCNP may be a cholinergic regulator in the septo-hippocampal network.
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Affiliation(s)
- Yuko Kondo-Takuma
- Department of Neurology, Nagoya City University Graduate School of Medical Sciences, Mizuho-ku, Nagoya, Aichi, 467-8601, Japan
| | - Masayuki Mizuno
- Department of Neurology, Nagoya City University Graduate School of Medical Sciences, Mizuho-ku, Nagoya, Aichi, 467-8601, Japan
| | - Yo Tsuda
- Department of Neurology, Nagoya City University Graduate School of Medical Sciences, Mizuho-ku, Nagoya, Aichi, 467-8601, Japan
| | - Yuta Madokoro
- Department of Neurology, Nagoya City University Graduate School of Medical Sciences, Mizuho-ku, Nagoya, Aichi, 467-8601, Japan
| | - Kengo Suzuki
- Department of Neurology, Nagoya City University Graduate School of Medical Sciences, Mizuho-ku, Nagoya, Aichi, 467-8601, Japan
| | - Toyohiro Sato
- Department of Neurology, Nagoya City University Graduate School of Medical Sciences, Mizuho-ku, Nagoya, Aichi, 467-8601, Japan
| | - Hiroshi Takase
- Core Laboratory, Nagoya City University Graduate School of Medical Sciences, Mizuho-ku, Nagoya, Aichi, 467-8601, Japan
| | - Yuto Uchida
- Department of Neurology, Nagoya City University Graduate School of Medical Sciences, Mizuho-ku, Nagoya, Aichi, 467-8601, Japan
| | - Ken-Ichi Adachi
- Department of Neurology, Nagoya City University Graduate School of Medical Sciences, Mizuho-ku, Nagoya, Aichi, 467-8601, Japan
| | - Hideki Hida
- Department of Neurophysiology and Brain Science, Nagoya City University Graduate School of Medical Sciences, Mizuho-ku, Nagoya, Aichi, 467-8601, Japan
| | - Cesario V Borlongan
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida, Morsani College of Medicine, 12901 Bruce B. Downs Blvd, Tampa, FL, 33612, USA
| | - Noriyuki Matsukawa
- Department of Neurology, Nagoya City University Graduate School of Medical Sciences, Mizuho-ku, Nagoya, Aichi, 467-8601, Japan.
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49
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Kuroki N, Abe D, Hasegawa K, Nagatomo R, Okochi M, Kato T, Aoyama T, Hirano H, Ohashi K, Takayama A, Hattori A, Kimata A, Hamabe Y, Suzuki K, Ueda T. Habitual exercise provides better prognosis for cardiac arrest with coronary artery disease. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Although regular physical activity has beneficial cardiovascular effects, exercise can trigger sudden cardiac arrest (SCA). Coronary artery disease (CAD) was identified as the most common cause of an exercise-related out-of-hospital cardiac arrest (OHCA). Regular exercise has been reported to reduce the risk of plaque rupture in animal studies and basic research. Therefore, we compared the coronary artery findings in CAD-OHCA patients with and without habitual exercise.
There have been few reports on whether regular exercise changes the prognosis in OHCA due to CAD (CAD-OHCA). We investigated the association between the better clinical outcome and the regular exercise in patients with CAD-OHCA.
Methods
This is a single-center retrospective analysis from 2006 to 2019. The consecutive 397 patients with OHCA due to myocardial ischemia underwent coronary angiography (CAG). After excluding 73 patients with vasospastic angina, the remaining 324 patients with CAD were enrolled in this study. We divided these patients into two groups according to whether they were habitually exercising (Exercise group: N=37) or not/unknown (Non-Exercise group: N=287).
Clinical outcome was a 30-day survival with minimal neurologic impairment represented by a Glasgow-Pittsburgh Cerebral Performance Categories Scale value 1 or 2.
Results
The patients in the Exercise Group were significantly younger (exercise vs. non-exercise, 57±12 vs. 64±12 years; P<0.01) than those in the non-exercise group. The Exercise group had a lower incidence of diabetes mellitus (22% vs. 42%; P=0.02) and a higher incidence of dyslipidemia (81% vs. 62%; P=0.02) than the non-exercise group. The time from collapse to cardiopulmonary resuscitation (1.4±4.0 vs. 3.0±4.8min) and from collapse to return of spontaneous circulation (11.9±10.0 vs. 28.0±25.3min) were shorter in Exercise group (all p<0.05). The ST-segment elevation was recorded on electrocardiography in fewer of the Exercise group (22% vs. 63%; P<0.01). The finding of culprit lesion in the coronary arteries on arrival resulted significant differences between the 2groups (good collateral and/or TIMI3 flow: 62% vs. 25%, the plaque rupture and/or thrombus: 22% vs. 73%) (all p<0.01) (Figure 1). Kaplan-Meier curve showed Exercise group has better neurological outcome at 30days compared than Non-Exercise (95% vs 51%; P<0.001, log-rank test) (Figure 2). Multivariable Cox proportional hazards models revealed that a habitual exercise was one of the predictors of a good neurological outcome (HR 0.21, 95% CI 0.05–0.92; P=0.039).
Conclusions
The patients with habitual exercise had less plaque rupture, less coronary thrombosis than non-exercise. The patients with regular exercise had better clinical outcomes than non-exercise after CAD-OHCA.
Funding Acknowledgement
Type of funding sources: Public Institution(s). Main funding source(s): Tokyo Metropolitan Goverment Figure 1. Findings of the culprit lesion in coronar arteriesFigure 2. Kaplan-Meier analysis
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Affiliation(s)
- N Kuroki
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
| | - D Abe
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
| | - K Hasegawa
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
| | - R Nagatomo
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
| | - M Okochi
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
| | - T Kato
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
| | - T Aoyama
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
| | - H Hirano
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
| | - K Ohashi
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
| | - A Takayama
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
| | - A Hattori
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
| | - A Kimata
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
| | - Y Hamabe
- Tokyo Metropolitan Bokutoh Hospital, Emergency and Intensive Care Center, Tokyo, Japan
| | - K Suzuki
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
| | - T Ueda
- Tokyo Metropolitan Bokutoh Hospital, Department of Cardiology, Tokyo, Japan
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50
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Takai S, Sudo M, Sakai M, Suzuki K, Sasaki Y, Kakuda T, Suzuki Y. Isolation of Rhodococcus equi from the gastrointestinal contents of earthworms (family Megascolecidae). Lett Appl Microbiol 2021; 74:27-31. [PMID: 34608644 DOI: 10.1111/lam.13577] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 09/29/2021] [Accepted: 10/01/2021] [Indexed: 11/27/2022]
Abstract
Rhodococcus equi was isolated from the gastrointestinal contents of earthworms (family Megascolecidae) and their surrounding soil collected from pastures of two horse-breeding farms in Aomori Prefecture, outdoor pig pens, forest in Towada campus, orange groves and forest where wild boars (Sus scrofa) are established in Tanabe, Wakayama Prefecture. The number of R. equi in the lower gastrointestinal contents of 23 earthworms collected from our campus was significantly larger than that of the upper gastrointestinal content. The mean numbers of R. equi from the gastrointestinal contents of earthworms collected from the various places were 2·3-fold to 39·7-fold more than those of the surrounding soil samples. In all, 1771 isolates from the earthworms and 489 isolates from the soil samples were tested for the presence of vapA and vapB genes using polymerase chain reaction. At the horse-breeding farm N, 9 of the 109 isolates (8·3%) from the earthworms and 7 of the 106 isolates (6·6%) from the soil samples were positive for the vapA gene. At the University's forest, one of the 250 isolates (0·4%) from the gastrointestinal contents of the earthworm was positive for the vapB gene. These results revealed that R. equi can be found in significant quantities in the gastrointestinal contents of earthworms, suggesting that they act as an accumulator of R. equi in the soil environment and as a source or reservoir of animal infection.
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Affiliation(s)
- S Takai
- Department of Animal Hygiene, School of Veterinary Medicine and Animal Sciences, Kitasato University, Towada, Japan
| | - M Sudo
- Department of Animal Hygiene, School of Veterinary Medicine and Animal Sciences, Kitasato University, Towada, Japan
| | - M Sakai
- Department of Animal Hygiene, School of Veterinary Medicine and Animal Sciences, Kitasato University, Towada, Japan
| | - K Suzuki
- Hikiiwa Park Center, Tanabe, Japan
| | - Y Sasaki
- Department of Animal Hygiene, School of Veterinary Medicine and Animal Sciences, Kitasato University, Towada, Japan
| | - T Kakuda
- Department of Animal Hygiene, School of Veterinary Medicine and Animal Sciences, Kitasato University, Towada, Japan
| | - Y Suzuki
- Department of Animal Hygiene, School of Veterinary Medicine and Animal Sciences, Kitasato University, Towada, Japan
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