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Toga A, Balaji A, Hemmi O, Ishii K, Tokunaga S, Katoh S, Izumida R. Examining the Efficacy of Drain Tip Cultures in Predicting Postoperative Surgical Site Infections in Hip Arthroplasty: A 15-Year Retrospective Study. Cureus 2023; 15:e46395. [PMID: 37927684 PMCID: PMC10620546 DOI: 10.7759/cureus.46395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/28/2023] [Indexed: 11/07/2023] Open
Abstract
Background Postoperative surgical site infections (SSIs) are a significant complication of surgical procedures, leading to increased morbidity, prolonged hospital stays, and substantial healthcare costs; however, the use of drain tip cultures to diagnose SSIs in patients is controversial. The objective of this study was to evaluate the efficacy of drain tip cultures for the prediction of postoperative SSIs in patients recovering from hip arthroplasty. Methodology The data were collected from 1204 patients who underwent hip arthroplasty procedures over 15 years, and statistical analysis was performed to evaluate the diagnostic value of drain tip culture in determining surgical site infection. We also used these data to evaluate whether preexisting conditions such as hypertension or diabetes affected the probability of a patient getting an SSI. Results Drain tip cultures were positive in 12 of 1,112 cases of primary hip arthroplasty, but only one of these 12 patients was ultimately diagnosed with an SSI (sensitivity, 12.5%; specificity, 99.0%; p = 0.0834). Results from postoperative drain tip cultures performed in patients undergoing revision arthroplasty included two false positives and three false negatives; interestingly, no true positives were detected in any of the revision arthroplasty cases we evaluated (sensitivity, 0%; specificity, 97.8%; p = 0.9355). Conclusion Our results indicate that drain tip cultures have no statistically significant predictive value for the diagnosis of postoperative SSIs and thus should not be used as a primary diagnostic or predictive tool for SSIs. We recommend exploring other diagnostic tools for the postoperative diagnosis of SSIs. Standardized guidelines should therefore be established to improve the predictive value of the different methods.
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Affiliation(s)
- Akira Toga
- Department of Orthopaedic Surgery, Edogawa Hospital, Tokyo, JPN
- Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, JPN
| | - Ayush Balaji
- Department of Orthopaedic Surgery, Edogawa Hospital, Tokyo, JPN
- Medicine, Hull York Medical School, York, GBR
| | - Osamu Hemmi
- Keiyu Artificial Joint Center, Edogawa Hospital, Tokyo, JPN
| | - Ken Ishii
- Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, JPN
- Keiyu Artificial Joint Center, Edogawa Hospital, Tokyo, JPN
- Spine Surgery, Society for Minimally Invasive Spinal Treatment (MIST), Tokyo, JPN
| | | | - Shojiro Katoh
- Department of Orthopaedic Surgery, Edogawa Hospital, Tokyo, JPN
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Balaji A, Toga A, Sanghai A, Chishti H, Turner L, Katoh S. Combined Femoral Osteotomy and Contralateral Hip Arthroplasty to Correct Limb Alignment and Arthritis in a Scoliosis and Polio Patient: A Case Report. Cureus 2023; 15:e39010. [PMID: 37323332 PMCID: PMC10264140 DOI: 10.7759/cureus.39010] [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] [Accepted: 05/09/2023] [Indexed: 06/17/2023] Open
Abstract
We describe the first case of a 62-year-old female symptomatic patient with multiple comorbidities presenting with coronal limb malalignment due to scoliosis and osteoarthritis who underwent a combined total hip arthroplasty and biplane opening wedge osteotomy of the distal femur in one procedure. It is essential to realize that in patients who present with multiple comorbidities, combining different established procedures should be considered as a therapeutic option. We detail the operative procedure, preoperative considerations, and postoperative rehabilitation. By reviewing the literature on operative techniques, we highlight how our findings can be applied to similar cases with multiple comorbidities. Our report underscores the importance of considering combined procedures as a viable therapeutic option for patients with complex medical histories.
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Affiliation(s)
- Ayush Balaji
- Hull York Medical School, University of York, York, GBR
- Department of Orthopaedic Surgery, Edogawa Hospital, Tokyo, JPN
| | - Akira Toga
- Department of Orthopaedic Surgery, Edogawa Hospital, Tokyo, JPN
| | - Aman Sanghai
- Hull York Medical School, University of York, York, GBR
| | | | - Luke Turner
- Hull York Medical School, University of York, York, GBR
| | - Shojiro Katoh
- Department of Orthopaedic Surgery, Edogawa Hospital, Tokyo, JPN
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Senthilkumar R, Yoshioka H, Katoh S, Iwasaki M, Surya Prakash V, Balamurugan M, Dedeepiya VD, Preethy S, Abraham SJK. Engraftment and Proliferation of Thermoreversible-Gelation-Polymer-Encapsulated Human Corneal Limbal-Stem-Cells on Ocular Surface of a Cadaver Cornea. Curr Eye Res 2023; 48:564-572. [PMID: 36852699 DOI: 10.1080/02713683.2023.2180039] [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: 03/01/2023]
Abstract
PURPOSE Corneal limbal stem cell (LSC) transplantation has been reported as a potential approach to treat the damaged corneal epithelium. Scaffolds such as human amniotic membrane (hAM) are commonly employed for the in vitro culture and as a carrier during in vivo transplantation. However, they carry the risk of biological contamination and donor to donor variability. To overcome these disadvantages, we herein report the capabilities of a synthetic thermoreversible gelation polymer (TGP) scaffold to serve as an encapsulation support during LSC transplantation and to enable engraftment for corneal regeneration. METHODS Sixteen discarded human corneas were used to isolate the corneal epithelium which was cultured in TGP and hAM. The cell proliferation and characteristics between TGP and hAM culture methods were evaluated by microscopic observation, 3H Thymidine incorporation assay, immunoperoxidase and immunofluorescence staining. RESULTS The 3H Thymidine assay's results showed that TGP allowed human-donor cornea-derived LSCs to proliferate well in vitro, compared to hAM and the cells encapsulated in TGP and transplanted ex vivo onto a human cadaver donor cornea denuded of its epithelium, migrated on the ocular surface, and proliferated to form a continuous layer in 25 days. Immunoperoxidase and Immunofluorescence staining of TGP-cultured cells were positive for LSC markers (p63, ABCG2, Connexin 43 and Integrin β), proving that the TGP helps to preserve the limbal cells' stemness. CONCLUSION TGP is found to be a multipurpose scaffold for (i) in vitro culture, (ii) ex vivo encapsulation, and in vivo transplantation (iii), enabling engraftment of LSCs in this study, with potentials to extend its application in cell-based therapies in several regenerative medicine approaches.
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Affiliation(s)
- Rajappa Senthilkumar
- Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), Chennai, Tamil Nadu, India.,JBM Inc., Higashi-Koiwa, Tokyo, Japan
| | | | - Shojiro Katoh
- Edogawa Evolutionary Lab of Science (EELS), Higashi-Koiwa, Tokyo, Japan.,Edogawa Hospital, Higashi-Koiwa, Tokyo, Japan
| | - Masaru Iwasaki
- Center for Advancing Clinical Research (CACR), Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | | | - Madasamy Balamurugan
- Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Karaikal, Puducherry, India
| | | | - Senthilkumar Preethy
- Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), Chennai, Tamil Nadu, India
| | - Samuel J K Abraham
- JBM Inc., Higashi-Koiwa, Tokyo, Japan.,Center for Advancing Clinical Research (CACR), Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan.,Mary-Yoshio Translational Hexagon (MYTH), Nichi-In Centre for Regenerative Medicine (NCRM), Chennai, Tamil Nadu, India.,Antony- Xavier Interdisciplinary Scholastics (AXIS), GN Corporation Co. Ltd., Kofu, Yamanashi, Japan
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Horiguchi A, Shinchi M, Ojima K, Hirano Y, Kushibiki T, Mayumi Y, Miyai K, Miura I, Iwasaki M, Suryaprakash V, Senthilkumar R, Preethy S, Katoh S, Abraham SJK. Engraftment of Transplanted Buccal Epithelial Cells onto the Urethrotomy Site, Proven Immunohistochemically in Rabbit Model; a Feat to Prevent Urethral Stricture Recurrence. Stem Cell Rev Rep 2023; 19:275-278. [PMID: 36306011 PMCID: PMC9823073 DOI: 10.1007/s12015-022-10466-1] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/11/2022] [Indexed: 01/29/2023]
Affiliation(s)
- Akio Horiguchi
- Department of Urology, National Defence Medical College, Tokorozawa, Saitama Japan
| | - Masayuki Shinchi
- Department of Urology, National Defence Medical College, Tokorozawa, Saitama Japan
| | - Kenichiro Ojima
- Department of Urology, National Defence Medical College, Tokorozawa, Saitama Japan
| | - Yusuke Hirano
- Department of Urology, National Defence Medical College, Tokorozawa, Saitama Japan
| | - Toshihiro Kushibiki
- Department of Medical Engineering, National Defence Medical College, Tokorozawa, Saitama Japan
| | - Yoshine Mayumi
- Department of Medical Engineering, National Defence Medical College, Tokorozawa, Saitama Japan
| | - Kosuke Miyai
- Departmet of Basic Pathology, National Defence Medical College, Tokorozawa, Saitama Japan
| | - Ichiro Miura
- Department of Clinical Laboratory, Hokkaido Institutional Society, Obihiro Hospital, Obihiro, Hokkaido Japan ,Department of Human Pathology, Juntendo University, Tokyo, Japan
| | - Masaru Iwasaki
- Center for Advancing Clinical Research (CACR), University of Yamanashi -Faculty of Medicine, 1110, Shimokato, Chuo, Yamanashi 409-3898 Japan
| | - Vaddi Suryaprakash
- Department of Urology, Yashoda Hospitals, Raj Bhavan Rd, Matha Nagar, Somajiguda, Hyderabad, Telangana 500082 India
| | - Rajappa Senthilkumar
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai, 600034 Tamil Nadu India
| | - Senthilkumar Preethy
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai, 600034 Tamil Nadu India
| | - Shojiro Katoh
- Edogawa Evolutionary Lab of Science (EELS), 2-24-18, Higashi-Koiwa, Edogawa, Tokyo, 133-0052 Japan
| | - Samuel J. K. Abraham
- Center for Advancing Clinical Research (CACR), University of Yamanashi -Faculty of Medicine, 1110, Shimokato, Chuo, Yamanashi 409-3898 Japan ,Edogawa Evolutionary Lab of Science (EELS), 2-24-18, Higashi-Koiwa, Edogawa, Tokyo, 133-0052 Japan ,The Mary-Yoshio Translational Hexagon (MYTH), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai, 600034 Tamil Nadu India ,Division of Research & Development, JBM Inc, Tokyo, Japan ,Antony- Xavier Interdisciplinary Scholastics (AXIS), GN Corporation Co. Ltd, 3-8, Wakamatsu, Kofu, Yamanashi, 400-0866 Japan ,University of Yamanashi - School of Medicine, Chuo, Japan
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Katoh S, Yoshioka H, Suzuki S, Nakajima H, Iwasaki M, Senthilkumar R, Preethy S, Abraham SJK. An efficient polymer cocktail-based transportation method for cartilage tissue, yielding chondrocytes with enhanced hyaline cartilage expression during in vitro culturing. J Orthop 2022; 29:60-64. [PMID: 35145328 PMCID: PMC8814592 DOI: 10.1016/j.jor.2022.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 01/27/2022] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Chondrocytes are used in cell-based therapies such as autologous chondrocyte implantation (ACI) and matrix-associated cartilage implantation (MACI). To transport the cartilage tissue to the laboratory for in vitro culturing, phosphate-buffered saline (PBS), Euro-Collins solution (ECS) and Dulbecco's Modified Eagle's Medium (DMEM) are commonly employed at 4-8 °C. METHODS In this study, eight samples of human cartilage biopsy tissues from elderly patients with severe osteoarthritis undergoing arthroscopy, which would otherwise have been discarded, were used. The cartilage tissue samples were compared to assess the cell yield between two transportation groups: i) a thermo-reversible gelation polymer (TGP) based method without cool preservation (∼25 °C) and ii) ECS transport at 4 °C. These samples were subjected to in vitro culture in a two-dimensional (2D) monolayer for two weeks and subsequently in a three-dimensional (3D) TGP scaffold for six weeks. RESULTS The cell count obtained from the tissues transported in TGP was higher (0.2 million cells) than those transported in ECS (0.08 million cells) both after initial processing and after in vitro culturing for 2 weeks in 2D (18 million cells compared with 10 million cells). In addition, mRNA quantification demonstrated significantly higher expression of Col2a1 and SOX-9 in 3D-TGP cultured cells and lower expression of COL1a1 in RT-PCR, characteristic of the hyaline cartilage phenotype, than in 2D culture. CONCLUSION This study confirms that the TGP cocktail is suitable for both the transport of human cartilage tissue and for in vitro culturing to yield better-quality cells for use in regenerative therapies.
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Affiliation(s)
- Shojiro Katoh
- Edogawa Evolutionary Lab of Science, Edogawa Hospital Campus, 2-24-18, Higashi Koiwa, Edogawa-Ku, Tokyo, 133-0052, Japan,Department of Orthopaedic Surgery, Edogawa Hospital, 2-24-18, Higashi Koiwa, Edogawa-Ku, Tokyo, 133-0052, Japan
| | - Hiroshi Yoshioka
- Mebiol Inc., 1-25-8, Nakahara, Hiratsuka, 254-0075, Kanagawa, Japan
| | - Shoji Suzuki
- Department of Clinical Education, University of Yamanashi -Faculty of Medicine, 1110, Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Hiroyuki Nakajima
- II Department of Surgery, University of Yamanashi -Faculty of Medicine, 1110, Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Masaru Iwasaki
- Centre for Advancing Clinical Research (CACR), University of Yamanashi -Faculty of Medicine, 1110, Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Rajappa Senthilkumar
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai, 600034, Tamil Nadu, India
| | - Senthilkumar Preethy
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai, 600034, Tamil Nadu, India
| | - Samuel JK. Abraham
- Centre for Advancing Clinical Research (CACR), University of Yamanashi -Faculty of Medicine, 1110, Shimokato, Chuo, Yamanashi, 409-3898, Japan,The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai, 600034, Tamil Nadu, India,The Mary-Yoshio Translational Hexagon (MYTH), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai, 600034, Tamil Nadu, India,JBM Inc., 3-1-14, Higashi Koiwa, Edogawa-Ku, Tokyo, 133-0052, Japan,Antony- Xavier Interdisciplinary Scholastics (AXIS), GN Corporation Co. Ltd., 3-8, Wakamatsu, Kofu, Yamanashi, 400-0866, Japan,Corresponding author. Centre for Advancing Clinical Research (CACR), University of Yamanashi, Faculty of Medicine, 3-8, Wakamatsu, Kofu, 400-0866, Yamanashi, Japan.
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Horiguchi A, Ojima K, Shinchi M, Mayumi Y, Kushibiki T, Katoh S, Takeda M, Iwasaki M, Yoshioka H, Suryaprakash V, Balamurugan M, Senthilkumar R, Abraham SJK. In Vitro Culture Expansion and Characterization of Buccal Mucosal Epithelial Cells for Tissue Engineering Applications in Urethral Stricture After Transportation Using a Thermoreversible Gelation Polymer. Biopreserv Biobank 2021; 20:97-103. [PMID: 34962137 DOI: 10.1089/bio.2021.0079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Introduction: The transportation of tissues from hospitals to clinical laboratories for cell therapy is an essential component of regenerative medicine. Previously, we used laboratory-cultured mucosal cells from buccal epithelium expanded and encapsulated using a scaffold-hybrid approach to the urethral stricture (BEES-HAUS) procedure. In this study, to improve the outcomes, we compared the thermoreversible gelation polymer (TGP) transportation procedure with conventional culture methods, and reported its advantages. Methods: Human buccal mucosal tissues in Phase I of the study were transported in Euro-Collins solution (ECS) and the cells obtained were cultured in two-dimensional (2D) Dulbecco's modified Eagle's medium (DMEM), CnT-Prime epithelial 2D differentiation medium (CnT-PR), and a three-dimensional (3D)-TGP scaffold. In Phase II, tissues were transported in a TGP cocktail and the ECS. The cells were cultured in 2D-DMEM and 3D-TGP, quantified, and characterized by immunohistochemistry. Results: The cells in 3D-TGP culture maintained epithelial morphology in a better manner compared with 2D-DMEM, in which they developed fibroblast-like morphology. The TGP-transported cells grew rapidly. Immunohistochemical analysis results for AE1/AE3, EGFR, integrin-β1, p63, and p75 were intensely positive in 3D-TGP. Conclusion: The TGP-based cocktail used in human buccal tissue transportation yielded cells with better morphology maintenance. The TGP scaffold provides an optimal in vitro environment wherein epithelial cells better maintain their native phenotype compared to those cultured through conventional methods. These results suggest using TGP for the transportation and culture of human buccal tissues for clinical applications. In addition, the use of a TGP-based cocktail for the transport of other tissues for regenerative medicine applications is worth further analysis.
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Affiliation(s)
- Akio Horiguchi
- Department of Urology, National Defence Medical College, Tokorozawa, Saitama, Japan
| | - Kenichiro Ojima
- Department of Urology, National Defence Medical College, Tokorozawa, Saitama, Japan
| | - Masayuki Shinchi
- Department of Urology, National Defence Medical College, Tokorozawa, Saitama, Japan
| | - Yoshine Mayumi
- Department of Urology, National Defence Medical College, Tokorozawa, Saitama, Japan
| | - Toshihiro Kushibiki
- Department of Medical Engineering, National Defence Medical College, Tokorozawa, Saitama, Japan
| | - Shojiro Katoh
- Edogawa Evolutionary Lab of Science (EELS), Edogawa Hospital, Tokyo, Japan.,Department of Orthopedic Surgery, Edogawa Hospital, Edogawa, Tokyo, Japan
| | - Masayuki Takeda
- Department of Urology, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | - Masaru Iwasaki
- Center for Advancing Clinical Research (CACR), Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan
| | | | | | - Madasamy Balamurugan
- Department of Pathology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Karaikal, Puducherry, India
| | - Rajappa Senthilkumar
- Fujio-Eiji Academic Terrain (FEAT), Nichi-In Center for Regenerative Medicine (NCRM), Chennai, Tamil Nadu, India
| | - Samuel J K Abraham
- Center for Advancing Clinical Research (CACR), Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan.,Fujio-Eiji Academic Terrain (FEAT), Nichi-In Center for Regenerative Medicine (NCRM), Chennai, Tamil Nadu, India.,R & D Division, JBM Inc., Edogawa, Tokyo, Japan.,Mary-Yoshio Translational Hexagon (MYTH), Nichi-In Center for Regenerative Medicine (NCRM), Chennai, Tamil Nadu, India.,Antony-Xavier Interdisciplinary Scholastics (AXIS), GN Corporation Co. Ltd., Kofu, Yamanashi, Japan
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Katoh S, Fujimaru A, Iwasaki M, Yoshioka H, Senthilkumar R, Preethy S, Abraham SJK. Reversal of senescence-associated beta-galactosidase expression during in vitro three-dimensional tissue-engineering of human chondrocytes in a polymer scaffold. Sci Rep 2021; 11:14059. [PMID: 34234261 PMCID: PMC8263703 DOI: 10.1038/s41598-021-93607-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 06/28/2021] [Indexed: 11/25/2022] Open
Abstract
Regenerative medicine applications require cells that are not inflicted with senescence after in vitro culture for an optimal in vivo outcome. Methods to overcome replicative senescence include genomic modifications which have their own disadvantages. We have evaluated a three-dimensional (3D) thermo-reversible gelation polymer (TGP) matrix environment for its capabilities to reverse cellular senescence. The expression of senescence-associated beta-galactosidase (SA-βgal) by human chondrocytes from osteoarthritis-affected cartilage tissue, grown in a conventional two-dimensional (2D) monolayer culture versus in 3D-TGP were compared. In 2D, the cells de-differentiated into fibroblasts, expressed higher SA-βgal and started degenerating at 25 days. SA-βgal levels decreased when the chondrocytes were transferred from the 2D to the 3D-TGP culture, with cells exhibiting a tissue-like growth until 42-45 days. Other senescence associated markers such as p16INK4a and p21 were also expressed only in 2D cultured cells but not in 3D-TGP tissue engineered cartilage. This is a first-of-its-kind report of a chemically synthesized and reproducible in vitro environment yielding an advantageous reversal of aging of human chondrocytes without any genomic modifications. The method is worth consideration as an optimal method for growing cells for regenerative medicine applications.
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Affiliation(s)
- Shojiro Katoh
- Edogawa Evolutionary Lab of Science, Edogawa Hospital Campus, 2-24-18, Higashi Koiwa, Edogawa-Ku, Tokyo, 133-0052, Japan
- Department of Orthopaedic Surgery, Edogawa Hospital, 2-24-18, Higashi Koiwa, Edogawa-Ku, Tokyo, 133-0052, Japan
| | - Atsuki Fujimaru
- Department of Orthopaedic Surgery, Edogawa Hospital, 2-24-18, Higashi Koiwa, Edogawa-Ku, Tokyo, 133-0052, Japan
| | - Masaru Iwasaki
- Centre for Advancing Clinical Research (CACR), University of Yamanashi-Faculty of Medicine, 1110, Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Hiroshi Yoshioka
- Mebiol Inc., 1-25-8, Nakahara, Hiratsuka, Kanagawa, 254-0075, Japan
| | - Rajappa Senthilkumar
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai, Tamil Nadu, 600034, India
| | - Senthilkumar Preethy
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai, Tamil Nadu, 600034, India
| | - Samuel J K Abraham
- Centre for Advancing Clinical Research (CACR), University of Yamanashi-Faculty of Medicine, 1110, Shimokato, Chuo, Yamanashi, 409-3898, Japan.
- The Mary-Yoshio Translational Hexagon (MYTH), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai, Tamil Nadu, 600034, India.
- JBM Inc., 3-1-14, Higashi Koiwa, Edogawa-Ku, Tokyo, 133-0052, Japan.
- Antony- Xavier Interdisciplinary Scholastics (AXIS), GN Corporation Co. Ltd., 3-8, Wakamatsu, Kofu, Yamanashi, 400-0866, Japan.
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Katoh S, Dedeepiya VD, Kuroda S, Iwasaki M, Senthilkumar R, Preethy S, Abraham SJK. Potential of Combination of Bone Marrow Nucleated and Mesenchymal Stem Cells in Complete Spinal Cord Injury. Curr Stem Cell Res Ther 2021; 16:385-399. [PMID: 33121414 DOI: 10.2174/1574888x15666201029160542] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 07/31/2020] [Accepted: 09/05/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Cell-based therapies represent one of the definitive treatment approaches to SCI which, to become a routine clinical application, is marred by several known unknowns. The Bone Marrow Mononuclear Cells (BMMNCs) and Mesenchymal Stem Cells (MSCs) represent the most clinically applied cell types for SCI in humans, with safety established, and to an extent, efficacy reported. METHODS In this review, we have analysed the clinical studies performed using BMMNC and MSC for complete SCI separately, and the potential for applying those cells in combination. We have also analysed those factors whose outcome in animal studies of SCI could be evaluated in depth but the clinical outcome cannot be evaluated intrinsically owing to practical difficulties. CONCLUSION A combination of these two cell types, BMMNC and MSC, has been proven to be advantageous than applying them separately. Therefore, a thorough evaluation including the rationale and potential implications of applying these two therapies has been presented here, and we hypothesize that such a combination is likely to improvise the outcome of a wholesome approach to spinal cord regeneration after SCI.
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Affiliation(s)
- Shojiro Katoh
- Edogawa Evolutionary Laboratory of Science (EELS), Edogawa Hospital, 2-24-18 Higashikoiwa, Edogawa, 133-0052, Tokyo, Japan
| | - Vidyasagar D Dedeepiya
- The Mary-Yoshio Translational Hexagon (MYTH), Nichi-In Centre for Regenerative Medicine (NCRM), Chennai-600094, India
| | - Satoshi Kuroda
- Department of Neurosurgery, Graduate School of Medicine and Pharmacological Science, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Masaru Iwasaki
- Faculty of Medicine, 1110, Yamanashi University, Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Rajappa Senthilkumar
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), Chennai-600094, India
| | - Senthilkumar Preethy
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), Chennai-600094, India
| | - Samuel J K Abraham
- Edogawa Evolutionary Laboratory of Science (EELS), Edogawa Hospital, 2-24-18 Higashikoiwa, Edogawa, 133-0052, Tokyo, Japan
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Horiguchi A, Ojima K, Shinchi M, Kushibiki T, Mayumi Y, Miyai K, Katoh S, Takeda M, Iwasaki M, Prakash VS, Balamurugan M, Rajmohan M, Preethy S, Abraham SJK. Successful engraftment of epithelial cells derived from autologous rabbit buccal mucosal tissue, encapsulated in a polymer scaffold in a rabbit model of a urethral stricture, transplanted using the transurethral approach. Regen Ther 2021; 18:127-132. [PMID: 34189194 PMCID: PMC8203727 DOI: 10.1016/j.reth.2021.05.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 05/06/2021] [Accepted: 05/15/2021] [Indexed: 11/19/2022] Open
Abstract
Background A pilot study reported an autologous buccal mucosal cell transplant in humans through the trans-urethral route using the buccal epithelium expanded and encapsulated in scaffold-hybrid approach to urethral stricture (BEES-HAUS), a minimally invasive approach to treat urethral stricture. Although successful outcomes were achieved in that study, for further validation, it is essential to prove that the transplanted buccal epithelium was engrafted over the urothelium through histological examination of the urethra, harvested post-transplant, which is infeasible in humans. Herein, we report the successful creation of an animal model of urethral stricture and the engraftment of epithelial cells derived from autologous buccal mucosal tissue, encapsulated in a thermo-reversible gelation polymer (TGP) scaffold, transplanted by trans-urethral route. Methods An animal model of urethral stricture was created in Japanese white male rabbits using electro-coagulation. Buccal tissue was harvested from the rabbits and subjected to enzyme digestion, followed by 5-7 days of in vitro culture in conventional two-dimensional (2D) culture and in a 3D platform of thermo-reversible gelation polymer (3D-TGP) culture. The cells harvested from the groups were mixed and encapsulated and transplanted with TGP, by transurethral catheterization. Fourteen days later, the urethra was harvested and subjected to histological examination. The buccal biopsy tissue, cells after digestion and cells post-culture were also subjected to histological examination. Urethrogram and endoscopy images were recorded at different time points. Results The stricture was successfully created, with the coagulated area markedly stenosed. Histological staining of the cells after in vitro processing showed that the cells grew with native epithelial and rounded cell morphology in 3D-TGP while they differentiated into fibroblast like-cells in 2D culture. Histological staining of the urethral tissue after transplantation revealed the engraftment of the transplanted buccal mucosal cells, with stratified squamous epithelium over the specialized stratified urothelium in the urethrotomy site. Conclusion We used histology to prove the successful engraftment of TGP-encapsulated buccal mucosal epithelial cells in an animal model of urethral injury with healing of the injured tissue. The model of urethral stricture and cell therapy, using a transurethral approach, recapitulates the previously reported BEES-HAUS approach and lays the foundation for larger multi-centric translational clinical studies.
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Affiliation(s)
- Akio Horiguchi
- Department of Urology, National Defence Medical College, Tokorozawa, Saitama, Japan
| | - Kenichiro Ojima
- Department of Urology, National Defence Medical College, Tokorozawa, Saitama, Japan
| | - Masayuki Shinchi
- Department of Urology, National Defence Medical College, Tokorozawa, Saitama, Japan
| | - Toshihiro Kushibiki
- Department of Medical Engineering, National Defence Medical College, Tokorozawa, Saitama, Japan
| | - Yoshine Mayumi
- Department of Medical Engineering, National Defence Medical College, Tokorozawa, Saitama, Japan
| | - Kosuke Miyai
- Department of Basic Pathology, National Defence Medical College, Tokorozawa, Saitama, Japan
| | - Shojiro Katoh
- Edogawa Evolutionary Lab of Science (EELS), 2-24-18, Higashi-Koiwa, Edogawa, Tokyo, 133-0052, Japan
- Edogawa Hospital, 2-24-18, Higashi-Koiwa, Edogawa, Tokyo, 133-0052, Japan
| | - Masayuki Takeda
- Department of Urology, Yamanashi University-Faculty of Medicine, 1110, Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Masaru Iwasaki
- Center for Advancing Clinical Research (CACR), University of Yamanashi -Faculty of Medicine, 1110, Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Vaddi Surya Prakash
- Department of Urology, Yashoda Hospitals, Raj Bhavan Rd, Matha Nagar, Somajiguda, Hyderabad, Telangana, 500082, India
| | - Madasamy Balamurugan
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai, 600034, Tamil Nadu, India
| | | | | | - Samuel JK. Abraham
- Center for Advancing Clinical Research (CACR), University of Yamanashi -Faculty of Medicine, 1110, Shimokato, Chuo, Yamanashi, 409-3898, Japan
- JBM Inc., 3-1-14, Higashi-Koiwa, Edogawa, Tokyo, 133-0052, Japan
- The Mary-Yoshio Translational Hexagon (MYTH), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai, 600034, Tamil Nadu, India
- The Antony-Xavier Interdisciplinary Scholastics (AXIS), GN Corporation Co. Ltd., 3-8, Wakamatsu, Kofu, Yamanashi, 400-0866, Japan
- Corresponding author. University of Yamanashi, School of Medicine, 3-8, Wakamatsu, Kofu, Yamanashi, 400-0866. Japan.
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Ishikawa M, Ota Y, Naritaka H, Katoh S. Endoscopic ultrasound imaging with high flow mode for endonasal transsphenoidal pituitary surgery. J Clin Neurosci 2021; 89:329-335. [PMID: 34119288 DOI: 10.1016/j.jocn.2021.05.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/07/2021] [Accepted: 05/08/2021] [Indexed: 11/16/2022]
Abstract
Intraoperative ultrasound during transsphenoidal surgery (TSS) for pituitary tumors has been reported. In reports of endonasal ultrasound (US), Doppler US vessel images were informative and effective in endoscopic TSS. We performed endoscopic US imaging with high flow mode, which is a novel technology, to visualize small vessels during endonasal endoscopic TSS. Six patients (five with pituitary adenomas and one with Rathoke's cleft cyst) underwent endoscopic US-assisted TSS. A small endoscopic US probe (Olympus, BF-UC260FW; diameter, 6.9 mm) was inserted transsphenoidally to the sellar floor and into the sella turcica, and endoscopic US monitoring was performed. By rotating the endoscopic US probe, the internal carotid artery, anterior cerebral artery, middle cerebral artery, various small vessels, optic nerve, and residual tumor were clearly visualized on the endoscopic US images. Real-time animated vessel images around the tumor could be generated when needed during TSS. The tumors were removed without leakage of cerebrospinal fluid in the six patients, and their visual acuity was restored. Endoscopic US with high flow mode can visualize not only main cerebral arteries but also intracranial small vessels on B-mode US images. Pituitary tumors were clearly recognized and removed safely and precisely by monitoring the cerebral artery and its small branches as landmarks.
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Affiliation(s)
- Mami Ishikawa
- Department of Neurosurgery, Edogawa Hospital, Tokyo, Japan.
| | - Yasushi Ota
- Department of Otorhinolaryngology, Toho University Sakura Medical Center, Chiba, Japan
| | - Heiji Naritaka
- Department of Neurosurgery, Edogawa Hospital, Tokyo, Japan
| | - Shojiro Katoh
- Department of Orthpedics, Edogawa Hospital, Tokyo, Japan
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Balaji A, Toga A, Kano J, Fujimaru A, Matsumoto T, Katoh S. Unicompartmental Knee Arthroplasty for Severe Osteoarthritis and Pseudarthrosis in a Patient with Neurofibromatosis. Orthop Res Rev 2021; 13:63-71. [PMID: 34017204 PMCID: PMC8131347 DOI: 10.2147/orr.s304651] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 04/22/2021] [Indexed: 11/23/2022] Open
Abstract
We describe the case of a 76-year-old Asian female patient who presented with severe pain and a valgus deformity of the right knee. Her past medical history included neurofibromatosis, which resulted in a severe anterior slope of the right knee, limb shortening, and congenital pseudarthrosis. She was diagnosed with severe anterolateral osteoarthritis and eburnation of the right knee that was treated surgically with a lateral unicompartmental knee arthroplasty (UKA). Bone and cartilage fragments were removed from the joint space and a UKA implant (Zimmer®) with dimensions of 29 mm × 50 mm was inserted. Perioperative imaging revealed that the procedure resulted in the correction of the valgus deformity. Pain was reduced and the patient was able to walk for 10 meters with support during the immediate postoperative period. One week post-surgery, the patient sustained an oblique tibial fracture that extended from the medial edge of the implant to the medial slope of the proximal tibia. This complication may have been attributed to large implant size or sagittal overcutting. The fracture was treated surgically with a rotated anterolateral locking plate (A.L.P.S®) inserted into the distal tibia. The patient was capable of ambulation at full weight load at two months after the second procedure. It is critical to recognize that there are no standard protocols that can be used to guide the treatment of neurofibromatosis-induced osteoarthritis. The specific preoperative condition of the individual patient plays a large role in determining the appropriate treatment option. In this case, the availability of custom-fitted UKA implants might have improved outlook, we understand that these devices are costly and may not be available at all hospitals. However, we strongly believe that the "gold standard" in these cases is patient-specific treatment that addresses the issues of the highest concern using the resources that are available at that time.
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Affiliation(s)
- Ayush Balaji
- Department of Orthopedic Surgery, Edogawa Hospital, Tokyo, Japan
| | - Akira Toga
- Department of Orthopedic Surgery, Edogawa Hospital, Tokyo, Japan
| | - Jun Kano
- Department of Orthopedic Surgery, Edogawa Hospital, Tokyo, Japan
| | - Atsuki Fujimaru
- Department of Orthopedic Surgery, Edogawa Hospital, Tokyo, Japan
| | | | - Shojiro Katoh
- Department of Orthopedic Surgery, Edogawa Hospital, Tokyo, Japan
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Katoh S, Yoshioka H, Senthilkumar R, Preethy S, Abraham SJK. Enhanced miRNA-140 expression of osteoarthritis-affected human chondrocytes cultured in a polymer based three-dimensional (3D) matrix. Life Sci 2021; 278:119553. [PMID: 33932445 DOI: 10.1016/j.lfs.2021.119553] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 03/20/2021] [Accepted: 04/21/2021] [Indexed: 01/05/2023]
Abstract
AIMS We have evaluated the potential of a three-dimensional (3D) thermoreversible gelation polymer (TGP) matrix in enhancing miRNA 140 expression (a biomarker correlating with homeostasis and cartilage regeneration) during the in vitro expansion of osteoarthritis (OA)-affected human chondrocytes. MATERIALS AND METHODS OA-chondrocytes were cultured in two-dimensional (2D) monolayer followed by culture in 3D-TGP. miRNA 140 expression levels in cell culture supernatant followed by expression in the cell lysate of both 2D and 3D-TGP cultures were analyzed. KEY FINDINGS The expression of miRNA 140 in cell culture supernatant from the 3D-TGP group was 0.001 to 0.002% that in 2D culture supernatant while in the cell lysate, miRNA 140 expression in the 3D-TGP was nearly 30-fold higher than that of 2D group. SIGNIFICANCE The 3D-TGP matrix allows enhanced expression of miRNA 140 in OA-affected human chondrocytes in vitro which after necessary validations can be applied in clinical transplantation to significantly improve the outcome.
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Affiliation(s)
- Shojiro Katoh
- Edogawa Evolutionary Lab of Science, Edogawa Hospital Campus, 2-24-18, Higashi Koiwa, Edogawa, Tokyo 133-0052, Japan; Department of Orthopaedic Surgery, Edogawa Hospital, 2-24-18, Higashi Koiwa, Edogawa, Tokyo 133-0052, Japan
| | - Hiroshi Yoshioka
- Mebiol Inc., 1-25-8, Nakahara, Hiratsuka 254-0075, Kanagawa, Japan
| | - Rajappa Senthilkumar
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai 600034, Tamil Nadu, India
| | - Senthilkumar Preethy
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai 600034, Tamil Nadu, India
| | - Samuel J K Abraham
- The Mary-Yoshio Translational Hexagon (MYTH), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai 600034, Tamil Nadu, India; JBM Inc., 3-1-14, Higashi Koiwa, Edogawa, Tokyo 133-0052, Japan; University of Yamanashi -Faculty of Medicine, 1110, Shimokato, Chuo, Yamanashi 409-3898, Japan; GN Corporation Co. Ltd., 3-8, Wakamatsu, Kofu, Yamanashi 400-0866, Japan.
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Katoh S, Rao SK, Suryaprakash V, Horiguchi A, Kushibiki T, Ojima K, Shinchi M, Iwasaki M, Takeda M, Senthilkumar R, Rajmohan M, Karthick R, Preethy S, Abraham SJ. A 3D Polymer Scaffold Platform for Enhanced in vitro Culture of Human & Rabbit Buccal Epithelial Cells for Cell Therapies. Tokai J Exp Clin Med 2021; 46:1-6. [PMID: 33835468] [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] [Received: 06/01/2020] [Accepted: 11/20/2020] [Indexed: 06/12/2023]
Abstract
BACKGROUND Buccal mucosal epithelial cells show promising application for various regenerative medicine approaches. In this study, we examined the feasibility of culturing rabbit and human buccal mucosal epithelial cells in a novel thermoreversible gelation polymer (TGP) scaffold, without feeder layers or other foreign proteins. METHODS & RESULTS The results of this 28-day in vitro culture, u sing the conventional technique (2D) and TGP (3D) showed that the epithelial cell morphology could be maintained only in the TGP group while cells in the 2D group de-differentiated to fibroblast morphology in both human and rabbit samples. CK3 expression, a marker for epithelial differentiation was higher in 3D-TGP cultured cells than 2D. CONCLUSION TGP based in vitro cell culture is a prospective methodology to culture buccal mucosal epithelial cells efficiently without using foreign biological components for tissue engineering applications.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Samuel Jk Abraham
- II Department of Surgery & Center for Advancing Clinical Research (CACR), University of Yamanashi, Faculty of Medicine, 1110, Shimokato, Chuo, Yamanashi 409-3898, Japan.
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14
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Namitha B, Chitra MR, Bhavya M, Parikumar P, Katoh S, Yoshioka H, Iwasaki M, Senthilkumar R, Rajmohan M, Karthick R, Preethy S, Abraham SJK. A novel human donor cornea preservation cocktail incorporating a thermo-reversible gelation polymer (TGP), enhancing the corneal endothelial cell density maintenance and explant culture of corneal limbal cells. Biotechnol Lett 2021; 43:1241-1251. [PMID: 33768381 PMCID: PMC8113287 DOI: 10.1007/s10529-021-03116-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 03/12/2021] [Indexed: 12/13/2022]
Abstract
Purpose McCarey-Kaufman’s (MK) medium and Optisol-GS medium are the most commonly employed media for human donor corneal preservation. In this study, we evaluated the preservation efficacy of discarded human donor corneas using a Thermo-reversible gelation polymer (TGP) added to these two media. Methods Thirteen human corneal buttons collected from deceased donors, which were otherwise discarded due to low endothelial cell density (ECD) were used. They were stored in four groups: MK medium, MK medium with TGP, Optisol-GS and Optisol-GS with TGP at 4 °C for 96 h. Slit lamp examination and specular microscopy were performed. Corneal limbal tissues from these corneas were then cultured using explant methodology one with and the other without TGP scaffold, for 21 days. Results MK + TGP and Optisol-GS + TGP preserved corneas better than without TGP, which was observed by maintenance of ECD which was significantly higher in Optisol-GS + TGP than MK + TGP (p-value = 0.000478) and corneal thickness remaining the same for 96 h. Viable corneal epithelial cells could be grown from the corneas stored only in MK + TGP and Optisol-GS + TGP. During culture, the TGP scaffold helped maintain the native epithelial phenotype and progenitor/stem cell growth was confirmed by RT-PCR characterization. Conclusion TGP reconstituted with MK and Optisol—GS media yields better preservation of human corneal buttons in terms of relatively higher ECD maintenance and better in vitro culture outcome of corneal limbal tissue. This method has the potential to become a standard donor corneal transportation-preservation methodology and it can also be extended to other tissue or organ transportation upon further validation.
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Affiliation(s)
| | | | - Mathevan Bhavya
- Regional Institute of Ophthalmology, Egmore, Chennai, Tamilnadu, India
| | - Periasamy Parikumar
- The Light Eye Hospital, Salem Main Rd, Dharmapuri, Tamil Nadu, 636701, India
| | - Shojiro Katoh
- Edogawa Evolutionary Lab of Science (EELS), Edogawa Hospital Campus, 2-24-18, Higashi Koiwa, Edogawa-Ku, Tokyo, 133-0052, Japan.,JBM Inc., 3-1-14, Higashi Koiwa, Edogawa-Ku, Tokyo, 133-0052, Japan
| | - Hiroshi Yoshioka
- Mebiol Inc., 1-25-8, Nakahara, Hiratsuka, Kanagawa, 254-0075, Japan
| | - Masaru Iwasaki
- Centre for Advancing Clinical Research (CACR), Faculty of Medicine, Yamanashi University, 1110, Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Rajappa Senthilkumar
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai, Tamil Nadu, 600034, India
| | - Mathaiyan Rajmohan
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai, Tamil Nadu, 600034, India
| | - Ramalingam Karthick
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai, Tamil Nadu, 600034, India
| | - Senthilkumar Preethy
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai, Tamil Nadu, 600034, India
| | - Samuel J K Abraham
- Centre for Advancing Clinical Research (CACR), Faculty of Medicine, Yamanashi University, 1110, Shimokato, Chuo, Yamanashi, 409-3898, Japan. .,The Mary-Yoshio Translational Hexagon (MYTH), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai, Tamil Nadu, 600034, India. .,JBM Inc., 3-1-14, Higashi Koiwa, Edogawa-Ku, Tokyo, 133-0052, Japan. .,GN Corporation Co. Ltd., 3-8, Wakamatsu, Kofu, Yamanashi, 400-0866, Japan.
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Katoh S, Yoshioka H, Senthilkumar R, Preethy S, Abraham SJK. Enhanced expression of hyaluronic acid in osteoarthritis-affected knee-cartilage chondrocytes during three-dimensional in vitro culture in a hyaluronic-acid-retaining polymer scaffold. Knee 2021; 29:365-373. [PMID: 33690017 DOI: 10.1016/j.knee.2021.02.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 02/01/2021] [Accepted: 02/15/2021] [Indexed: 02/02/2023]
Abstract
BACKGROUND Chondrocyte transplantation to address cartilage damage is an established solution. Because hyaluronic acid (HA) is an essential component for homeostasis of the cartilage, in order to arrive at methodologies to utilize its advantages in cell-based therapies, we compared the HA retention capability of a thermoreversible gelation polymer scaffold-based environment (3D-TGP) with conventional in vitro cell culture methodologies. METHODS Chondrocytes derived from osteoarthritis-affected knee joint cartilage of elderly patients were used and accomplished in three phases. In Phase I, the levels of HA secreted by chondrocytes were measured in culture supernatant. In Phase II, retention capacity of externally added HA was quantified indirectly by measuring the HA released in culture supernatant, and in Phase III, the expression of CD44 on cells was analysed by immunohistochemistry. RESULTS In Phase I, the average HA in the 3D supernatant was 3% that of 2D. In phase II, 80% of externally added HA was detected in the 2D on day 7, while in 3D-TGP, only 0.1% was released until day 21. In Phase III, 2D yielded individual cells that started degenerating from the third week; in 3D-TGP cells grew for a longer duration, formed a tissue-like architecture with extracellular matrix with significantly intense staining of CD44 than 2D. CONCLUSION The capability of the 3D-TGP culture environment to retain HA and support chondrocytes to grow with a tissue-like architecture expressing higher HA content is considered advantageous as it serves as an in vitro culture platform that enables tissue engineering of cartilage tissue with native hyaline phenotype and higher HA expression. The in vitro environment being conducive, based on this data, we also recommend that the TGP be tried as an encapsulation material in clinical studies of chondrocyte implantation for optimal clinical outcome.
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Affiliation(s)
- Shojiro Katoh
- Edogawa Evolutionary Lab of Science, Edogawa Hospital Campus, Edogawa-Ku, Tokyo, Japan; Department of Orthopaedic Surgery, Edogawa Hospital, Edogawa-Ku, Tokyo, Japan
| | | | - Rajappa Senthilkumar
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), Chennai, Tamil Nadu, India
| | - Senthilkumar Preethy
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), Chennai, Tamil Nadu, India
| | - Samuel J K Abraham
- II Department of Surgery & CACR, Yamanashi University-Faculty of Medicine, Yamanashi, Japan; The Mary-Yoshio Translational Hexagon (MYTH), Nichi-In Centre for Regenerative Medicine (NCRM), Chennai, Tamil Nadu, India; JBM Inc., Edogawa-Ku, Tokyo, Japan; GN Corporation Co. Ltd., Yamanashi, Japan.
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Katoh S, Yoshioka H, Iwasaki M, Senthilkumar R, Rajmohan M, Karthick R, Preethy S, Abraham SJ. A three-dimensional in vitro culture environment of a novel polymer scaffold, yielding chondroprogenitors and mesenchymal stem cells in human chondrocytes derived from osteoarthritis-affected cartilage tissue. J Orthop 2021; 23:138-141. [PMID: 33510554 DOI: 10.1016/j.jor.2021.01.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 01/10/2021] [Indexed: 01/30/2023] Open
Abstract
Objective We evaluated the expression of stem/progenitor biomarkers in osteoarthritic tissue derived chondrocytes cultured using a three-dimensional (3D) thermo-reversible gelation polymer (TGP). Methods The chondrocytes from discarded biopsy tissues obtained from human elderly patients with osteoarthritis were cultured using the 3D-TGP up to six weeks. Results The chondrocytes grew in a tissue-like manner, without de-differentiation into fibroblasts, and the cells thus tissue-engineered were proven positive for CD49e, OCT4, CD-105 and STRO-1 by immunohistochemistry. Conclusion This study establishes the efficacy of this 3D-TGP platform for clinically useable in-vitro tissue-engineered cartilage for improvising the clinical outcome of cell therapy for cartilage repair.
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Affiliation(s)
- Shojiro Katoh
- Edogawa Evolutionary Lab of Science, Edogawa Hospital Campus, 2-24-18, Higashi Koiwa, Edogawa-Ku, Tokyo, 133-0052, Japan.,Department of Orthopaedic Surgery, Edogawa Hospital, 2-24-18, Higashi Koiwa, Edogawa-Ku, Tokyo, 133-0052, Japan
| | - Hiroshi Yoshioka
- Mebiol Inc, 1-25-8, Nakahara, Hiratsuka, 254-0075, Kanagawa, Japan
| | - Masaru Iwasaki
- Centre for Advancing Clinical Research (CACR), University of Yamanashi -Faculty of Medicine, 1110, Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Rajappa Senthilkumar
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai, 600034, Tamil Nadu, India
| | - Mathaiyan Rajmohan
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai, 600034, Tamil Nadu, India
| | - Ramalingam Karthick
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai, 600034, Tamil Nadu, India
| | - Senthilkumar Preethy
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai, 600034, Tamil Nadu, India
| | - Samuel Jk Abraham
- Centre for Advancing Clinical Research (CACR), University of Yamanashi -Faculty of Medicine, 1110, Shimokato, Chuo, Yamanashi, 409-3898, Japan.,The Mary-Yoshio Translational Hexagon (MYTH), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai, 600034, Tamil Nadu, India.,JBM Inc, 3-1-14, Higashi Koiwa, Edogawa-Ku, Tokyo, 133-0052, Japan.,GN Corporation Co. Ltd, 3-8, Wakamatsu, Kofu, Yamanashi, 400-0866, Japan
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Toga A, Balaji A, Matsumoto T, Fujimaru A, Murakami H, Katoh S. Flexor Tendon Entrapment of the Index Finger After Monteggia Fracture in a Pediatric Patient. Orthop Res Rev 2020; 12:189-193. [PMID: 33364860 PMCID: PMC7751315 DOI: 10.2147/orr.s284278] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 11/24/2020] [Indexed: 11/23/2022] Open
Abstract
The present case report describes a pediatric patient who presented with flexor digitorum profundus (FDP) entrapment after a forearm fracture. The patient was diagnosed with a Bado type I Monteggia fracture. The fracture was reduced using closed reduction under fluoroscopy followed by Kirschner’s wire fixation. This case is unique because the FDP was found entrapped in the fracture site 2 weeks post-operation and was managed using conservative therapy. FDP entrapment is typically managed by surgical intervention, and there have been no previous reports of conservative management. The FDP was released using passive extension of the index finger under general anesthesia, and no irreversible damage to the tendon or muscle was found. This case report demonstrates the potential for conservative therapy in the management of FDP entrapment after forearm fractures. ![]()
Point your SmartPhone at the code above. If you have a QR code reader the video abstract will appear. Or use: https://youtu.be/NfvdI7qaZgE
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Affiliation(s)
- Akira Toga
- Department of Orthopedic Surgery, Edogawa Hospital, Tokyo, Japan
| | | | | | - Atsuki Fujimaru
- Department of Orthopedic Surgery, Edogawa Hospital, Tokyo, Japan
| | - Hideaki Murakami
- Department of Orthopedic Surgery, Edogawa Hospital, Tokyo, Japan
| | - Shojiro Katoh
- Department of Orthopedic Surgery, Edogawa Hospital, Tokyo, Japan
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Ikewaki N, Rao KS, Archibold AD, Iwasaki M, Senthilkumar R, Preethy S, Katoh S, Abraham SJK. Coagulopathy associated with COVID-19 - Perspectives & Preventive strategies using a biological response modifier Glucan. Thromb J 2020; 18:27. [PMID: 33082714 PMCID: PMC7563912 DOI: 10.1186/s12959-020-00239-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [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: 07/22/2020] [Accepted: 09/22/2020] [Indexed: 01/08/2023] Open
Abstract
Direct endothelial injury by viruses and dysregulation of clotting mechanisms due to cytokine storm are the major precipitating factors of mortality in COVID-19; both are attributed to a fundamental dysregulation of the immune system. While immune dysregulation can be attributed to several factors, the risk of associated thrombogenic disruption varies across individuals. This variation depends on several factors, such as comorbidities, including diabetes, hypertension, and cardiovascular diseases. When considering ethnic variations, the vulnerability of Caucasians, African Americans and Hispanics needs to be addressed before arriving at strategies to handle thromboembolic complications, which have been identified in recent reports as the leading causes of mortality in COVID-19. Although evaluation of D-dimer and prothrombin during admission is considered to predict prognosis and mortality, there are no preventive or prophylactic strategies before hospital admission. Herein, we present our perspectives on the effect of regular supplementation with the biological response modifier beta glucan based on its relevance to immune modulation. This effect is of paramount importance in decreasing the development of severe COVID-19 and reducing mortality against the background of coagulopathy, especially in vulnerable populations.
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Affiliation(s)
- Nobunao Ikewaki
- Department of Medical Life Science, Kyushu University of Health and Welfare, Nobeoka, Miyazaki Japan.,Institute of Immunology, Junsei Educational Institute, Nobeoka, Miyazaki Japan
| | - Kosagi-Sharaf Rao
- Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), City of Knowledge, Panama City, Panama
| | - Armando Durant Archibold
- Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), City of Knowledge, Panama City, Panama
| | - Masaru Iwasaki
- II Department of Surgery & Centre for Advancing Clinical Research (CACR), Yamanashi University- School of Medicine, Chuo, Japan
| | - Rajappa Senthilkumar
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), Chennai, India
| | - Senthilkumar Preethy
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), Chennai, India
| | - Shojiro Katoh
- Edogawa Evolutionary Laboratory of Science (EELS), Edogawa Hospital, Tokyo, Japan
| | - Samuel J K Abraham
- II Department of Surgery & Centre for Advancing Clinical Research (CACR), Yamanashi University- School of Medicine, Chuo, Japan.,Edogawa Evolutionary Laboratory of Science (EELS), Edogawa Hospital, Tokyo, Japan.,The Mary-Yoshio Translational Hexagon (MYTH), Nichi-In Centre for Regenerative Medicine (NCRM), Chennai, India.,GN Corporation Co. Ltd, Kofu, Japan
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19
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Ishikawa M, Masamoto K, Hachiya R, Kagami H, Inaba M, Naritaka H, Katoh S. Neurosurgical intraoperative ultrasonography using contrast enhanced superb microvascular imaging -vessel density and appearance time of the contrast agent. Br J Neurosurg 2020:1-10. [PMID: 32648779 DOI: 10.1080/02688697.2020.1772958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Background: Ultrasonography (US) provides real-time information on structures within the skull during neurosurgical operations. Superb microvascular imaging (SMI) is the latest imaging technique for detecting very low-velocity flow with minimal motion artifacts, and we have reported on this technique for intraoperative US monitoring. We combined SMI with administration of contrast agent to obtain detailed information during neurosurgical operations.Materials and methods: Twenty patients diagnosed with brain tumor (10 meningiomas, 5 glioblastomas, 2 hemangioblastomas, 1 schwannoma, 1 malignant lymphoma, 1 brain abscess) underwent neurosurgery under US with SMI and contrast agent techniques. Vessel density and appearance time following contrast administration were analyzed.Results: Flow in numerous vessels was not visualized by SMI alone, but appeared following injection of contrast agent in all cases. Flow in tumors was drastically enhanced by contrast agent in schwannoma, hemangioblastoma and meningioma, compared to normal brain tissue. Flows in the dilated and bent vessels of glioblastoma were also enhanced, although flow in hypoechoic lymphoma remained inconspicuous. The characteristics of tumor vessels were clearly visualized and tumor borders were demonstrated by the difference between tumor flow and brain flow, by the increased tumor vessel density and decreased appearance time of contrast agent compared to normal brain vessels.Conclusions: The combination of SMI and contrast agent techniques for intraoperative US monitoring could provide innovative flow images of tumor and normal brain. The neurosurgeon obtains information about tumor flow and tumor borderline before tumor resection.
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Affiliation(s)
- Mami Ishikawa
- Department of Neurosurgery, Tachikawa Hospital, Tokyo, Japan.,Department of Neurosurgery, Edogawa Hospital, Tokyo, Japan
| | - Kazuto Masamoto
- Faculty of Informatics and Engineering, University of Electro-Communications, Tokyo, Japan
| | - Ryota Hachiya
- Faculty of Informatics and Engineering, University of Electro-Communications, Tokyo, Japan
| | - Hiroshi Kagami
- Department of Neurosurgery, Saiseikai Yokohamashi Tobu Hospital, Yokohama, Japan
| | - Makoto Inaba
- Department of Neurosurgery, Saiseikai Yokohamashi Tobu Hospital, Yokohama, Japan
| | - Heiji Naritaka
- Department of Neurosurgery, Edogawa Hospital, Tokyo, Japan
| | - Shojiro Katoh
- Department of Orthopedics, Edogawa Hospital, Tokyo, Japan
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20
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Rao KS, Suryaprakash V, Senthilkumar R, Preethy S, Katoh S, Ikewaki N, Abraham SJK. Role of Immune Dysregulation in Increased Mortality Among a Specific Subset of COVID-19 Patients and Immune-Enhancement Strategies for Combatting Through Nutritional Supplements. Front Immunol 2020; 11:1548. [PMID: 32733487 PMCID: PMC7363949 DOI: 10.3389/fimmu.2020.01548] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 06/12/2020] [Indexed: 12/28/2022] Open
Abstract
Background: The COVID-19 pandemic has been causing varying severities of illness. Some are asymptomatic and some develop severe disease leading to mortality across ages. This contrast triggered us explore the causes, with the background that a vaccine for effective immunization or a drug to tackle COVID-19 is not too close to reality. We have discussed strategies to combat COVID-19 through immune enhancement, using simple measures including nutritional supplements. Discussion: A literature search on mortality-related comorbid conditions was performed. For those conditions, we analyzed the pro-inflammatory cytokines, which could cause the draining of the immune reservoir. We also analyzed the immune markers necessary for the defense mechanism/immune surveillance against COVID-19, especially through simple means including immune enhancing nutritional supplement consumption, and we suggest strategies to combat COVID-19. Major comorbid conditions associated with increased mortality include cardiovascular disease (CVD), diabetes, being immunocompromised by cancer, and severe kidney disease with a senile immune system. Consumption of Aureobasidium pullulans strain (AFO-202) beta 1,3-1,6 glucan supported enhanced IL-8, sFAS macrophage activity, and NK cells' cytotoxicity, which are major defense mechanisms against viral infection. Conclusion: People with co-morbid conditions who are more prone to COVID-19-related deaths due to immune dysregulation are likely to benefit from consuming nutritional supplements that enhance the immune system. We recommend clinical studies to validate AFO-202 beta glucan in COVID-19 patients to prove its efficacy in overcoming a hyper-inflammation status, thus reducing the mortality, until a definite vaccine is made available.
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Affiliation(s)
- Kosagi-Sharaf Rao
- Centre for Neuroscience, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Panama City, Panama
| | | | - Rajappa Senthilkumar
- The Fujio-Eiji Academic Terrain, Nichi-In Centre for Regenerative Medicine, Chennai, India
| | - Senthilkumar Preethy
- The Fujio-Eiji Academic Terrain, Nichi-In Centre for Regenerative Medicine, Chennai, India
| | - Shojiro Katoh
- Edogawa Evolutionary Laboratory of Science, Edogawa Hospital, Tokyo, Japan
| | - Nobunao Ikewaki
- Department of Medical Life Science, Kyushu University of Health and Welfare, Nobeoka, Japan
- Institute of Immunology, Junsei Educational Institute, Nobeoka, Japan
| | - Samuel J. K. Abraham
- The Mary-Yoshio Translational Hexagon, Nichi-In Centre for Regenerative Medicine, Chennai, India
- School of Medicine, Yamanashi University, Yamanashi, Japan
- GN Corporation Co. Ltd., Kofu, Japan
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21
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Katoh S, Fujimaru A, Senthilkumar R, Preethy S, Abraham SJ. Articular chondrocytes from osteoarthritic knee joints of elderly, in vitro expanded in thermo-reversible gelation polymer (TGP), exhibiting higher UEA-1 expression in lectin microarray. Regen Ther 2020; 14:234-237. [PMID: 32435676 PMCID: PMC7229400 DOI: 10.1016/j.reth.2020.03.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 03/11/2020] [Accepted: 03/12/2020] [Indexed: 11/30/2022] Open
Abstract
Autologous chondrocytes in vitro expanded, are used as tools of regenerative therapies for cartilage injuries. However, inability to maintain the hyaline phenotype both in vitro and post in vivo transplantation, remains one of the major hurdles for long term efficacy under clinical settings. We have reported earlier, hyaline phenotype maintenance of both human and rabbit chondrocytes for a long duration both in vitro when cultured conditions using a Thermo-reversible Gelation Polymer (TGP) scaffold-based methodology and in vivo post-transplantation animal model of cartilage damage. Having intrigued by such encouraging outcome, we in this study, analysed the similar TGP culture environment whether would be able to allow in vitro expansion of severe osteoarthritis affected cartilage tissue from elderly patients and evaluated the cells using lectin microarray characterization for pluripotency. Cartilage tissue were obtained from patients (n = 7; age: 60–85 years) undergoing total knee arthroplasty for severe osteoarthritis. Chondrocytes were isolated and cultured in two groups: i. conventional culture without scaffold (2D) and ii. using a TGP scaffold-based culture (3D) up to 18 weeks. In addition to earlier reported findings such as maintenance of hyaline phenotype having been confirmed in this study as well, surface glycoprotein analysis by lectin microarray demonstrated that the α1-2 Fuc recognition lectin (UEA-1) (marker reported in literature for pluripotent stem cells) was found to be more highly expressed in 3D culture compared to 2D culture and even increased over time in 3D culture. We have developed an environment where osteoarthritis affected chondrocytes from the elderly could be cultured up to 18 weeks in vitro using TGP scaffold which express pluripotent cell associated surface glycoproteins compared to the conventional methodology. Good quality chondrocytes were grown from cartilage tissue of elderly with severe osteoarthritis for 18 weeks in vitro. Inflamed donor chondrocytes could be revived to form normal tissue in a 3D in vitro TGP scaffold environment. Pluripotent stem cell marker UEA-1 in Lectin microarray was positive in TGP- Polymer scaffold grown cartilage.
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Key Words
- 2D, Two-dimensional
- 3D, Three-dimensional
- ACI, Autologous chondrocyte implantation
- CO2, Carbon dioxide
- Cartilage
- Chondrocytes
- ESC, Embryonic stem cells
- Hyaline phenotype
- Lectin microarray
- MACI, matrix-associated chondrocyte implantation
- Osteoarthritis
- PBS, Phosphate-buffered saline
- Pluripotency
- TGP, Thermo-reversible gelation polymer
- Thermo-reversible gelation polymer (TGP) scaffold
- hPSCs, Human pluripotent stem cells
- iPSC, Induced pluripotent stem cells
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Affiliation(s)
- Shojiro Katoh
- Edogawa Evolutionary Lab of Science, Edogawa Hospital Campus, 2-24-18, Higashikoiwa, Edogawa, Tokyo 133-0052, Japan.,Department of Orthopaedic Surgery, Edogawa Hospital, 2-24-18, Higashikoiwa, Edogawa, Tokyo 133-0052, Japan
| | - Atsuki Fujimaru
- Department of Orthopaedic Surgery, Edogawa Hospital, 2-24-18, Higashikoiwa, Edogawa, Tokyo 133-0052, Japan
| | - Rajappa Senthilkumar
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai 600034, Tamil Nadu, India
| | - Senthilkumar Preethy
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai 600034, Tamil Nadu, India
| | - Samuel Jk Abraham
- The Mary-Yoshio Translational Hexagon (MYTH), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai 600034, Tamil Nadu, India.,JBM Inc., 3-1-14, Higashikoiwa, Edogawa, Tokyo 133-0052, Japan.,Yamanashi University-Faculty of Medicine, 1110, Shimokato, Chuo, Yamanashi 409-3898, Japan.,GN Corporation Co. Ltd., 3-8, Wakamatsu, Kofu, Yamanashi 400-0866, Japan
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22
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Katoh S, Obayashi T, Ganesh JS, Iwasaki M, Preethy S, Abraham SJK. Cross-Protection Induced by Encephalitis Vaccines against COVID-19 Might be a Reason for Relatively Lower Mortality Rate in Some Countries. Arch Acad Emerg Med 2020; 8:e54. [PMID: 32440665 PMCID: PMC7212070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
COronaVIrus Disease 2019 (COVID-19) is an on-going pandemic attributed to a novel virus named SARS-CoV-2. Comparing the statistics of incidence and death rates between nations reveals that there is discrepancy amongst countries in these regards, even between countries that share borders. We herein present information from the literature indicating how cross-protection against COVID-19 conferred by the encephalitis vaccine could be the reason for lower fatality rate in the countries where immunization against encephalitis is widespread or included in national programs. This may pave the way for arriving at efficient prevention strategies as well as vaccine development.
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Affiliation(s)
- Shojiro Katoh
- Edogawa Evolutionary Lab of Science, Edogawa Hospital Campus, 2-24-18, Higashi-Koiwa, Edogawa, Tokyo 133-0052, Japan.,Edogawa Hospital, 2-24-18, Higashi-Koiwa, Edogawa, Tokyo 133-0052, Japan
| | - Toshihiko Obayashi
- Edogawa Hospital, 2-24-18, Higashi-Koiwa, Edogawa, Tokyo 133-0052, Japan
| | | | - Masaru Iwasaki
- Yamanashi University-Faculty of Medicine, 1110, Shimokato, Chuo, Yamanashi 409-3898, Japan
| | - Senthilkumar Preethy
- The Fujio-Eiji Academic Terrain (FEAT), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai 600034, Tamil Nadu, India
| | - Samuel JK Abraham
- Yamanashi University-Faculty of Medicine, 1110, Shimokato, Chuo, Yamanashi 409-3898, Japan.,The Mary-Yoshio Translational Hexagon (MYTH), Nichi-In Centre for Regenerative Medicine (NCRM), PB 1262, Chennai 600034, Tamil Nadu, India
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23
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Katoh S, Watanabe T, Arimoto T, Narumi T, Aono T, Goto J, Sugai T, Takahashi T, Tamura H, Nishiyama S, Takahashi H, Shishido T, Watanabe M. P3355Stress-induced left ventricular dyssynchrony predicts future cardiac events in patients with known or suspected coronary artery disease. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Prognostic value of stress induced left ventricular (LV) dyssynchrony has not been fully understood.
The aim of this study was to evaluate the possible impact between cardiovascular events and stress induced worsening LV dyssynchrony.
Methods and results
One hundred and eighty consecutive subjects with known or suspected coronary artery disease (CAD) (142 men, mean age 68±12 years) underwent both gated myocardial single photon emission computed tomography (SPECT) with 99mTc-sestamibi or tetrofosmin according to a standard same day stress-rest protocol and coronary angiography or coronary computed tomography. The summed difference score (SDS) was calculated in every subjects. LV ejection fraction (EF) and phase Entropy at after stress and rest were determined by cardioREPO software. We determined %ΔEntropy = (stress Entropy - rest Entropy)/rest Entropy x100, as an indicator of stress-induced LV dyssynchrony. In the study population, the mean SDS was 2.7±3.9 and LVEF was 58±16%, stress and rest Entropy were 0.62±0.15 and 0.57±0.13, respectively.
%ΔEntropy was higher in patients with CAD than in those without CAD (3.3±11.5 vs. 10.2±15.0, respectively). Moreover, there was a strict correlation between the presence of CAD and %ΔEntropy, indicator of stress induced LV dyssynchrony (non-CAD vs. CAD and/or 1 vessel disease vs. multivessel disease: 4.3±12.5 vs. 8.8±15.6 vs. 12.7±14.3, respectively. p<0.05)
We examined all study subjects and they were divided into 2 groups by cut off value of the %ΔEntropy constructed with receiver operating characteristic curve (=15.4). Kaplan-Meier analysis revealed that future cardiovascular event rate was significantly higher in %ΔEntropy >15.4 group (20/57) than in %ΔEntropy <15.4 group (24/123) (Log-rank p<0.01). On the other hand, summed stress score and SDS were no significant differences between 2 groups.
However, SDS was higher in patients with future cardiovascular event than in those without cardiovascular event (4.4±5.4 vs. 2.2±3.2, respectively. p=0.001).
Conclusion
In patients with known or suspected CAD, stress-induced worsening LV dyssynchrony may predict the presence of CAD and future cardiac events.
Acknowledgement/Funding
None
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Affiliation(s)
- S Katoh
- Yamagata University School of Medicine, Yamagata, Japan
| | - T Watanabe
- Yamagata University School of Medicine, Yamagata, Japan
| | - T Arimoto
- Yamagata University School of Medicine, Yamagata, Japan
| | - T Narumi
- Yamagata University School of Medicine, Yamagata, Japan
| | - T Aono
- Yamagata University School of Medicine, Yamagata, Japan
| | - J Goto
- Yamagata University School of Medicine, Yamagata, Japan
| | - T Sugai
- Yamagata University School of Medicine, Yamagata, Japan
| | - T Takahashi
- Yamagata University School of Medicine, Yamagata, Japan
| | - H Tamura
- Yamagata University School of Medicine, Yamagata, Japan
| | - S Nishiyama
- Yamagata University School of Medicine, Yamagata, Japan
| | - H Takahashi
- Yamagata University School of Medicine, Yamagata, Japan
| | - T Shishido
- Yamagata University School of Medicine, Yamagata, Japan
| | - M Watanabe
- Yamagata University School of Medicine, Yamagata, Japan
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24
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Affiliation(s)
- S. Katoh
- Department of Internal Medicine, Murakami Memorial Hospital, Asahi University, Gifu City
| | - K. Ida
- Department of Internal Medicine, Murakami Memorial Hospital, Asahi University, Gifu City
| | - A. Mizunoya
- Central Clinical Laboratory, Kyoto Prefectural University of Medicine, Kyoto - Japan
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25
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Katoh S, Kojima T, Morimoto S, Inoue K, Ida K, Nakaji S. Non-Machinery-Based System for Cell-Free, Concentrated Autogenous Ascitic Fluid Reinfusion. Int J Artif Organs 2018. [DOI: 10.1177/039139889501800708] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A non-machinery-based system for the reinfusion of ascitic fluid was developed and assessed. In fundamental studies utilizing bovine serum, this procedure proved economical, quick and useful. The most suitable filter was PS-R (#405-2). Bovine serum with a protein concentration below 3.0 g/dl was treated using this system. Samples containing blood (prepared to 0.5% hematocrit) were also treated, but the treatment time required was double that of serum with the same protein concentration. In both cases the protein recovery ratios were about 90%. We conducted clinical studies on 62 occasions (machinery-based system; 31 times, non-machinery-based system; 31 times) on 19 cases of ascites refractory to treatment with various drugs including diuretics. Clarification of the differences between the non-machinery and the machinery-based system, indicated the former to be superior. This new procedure is easier because of its use of no machinery, and the high protein recovery ratio proved its usefulness.
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Affiliation(s)
- S. Katoh
- Department of Internal Medicine, Murakami Memorial Hospital, Asahi University, Gifu
| | - T. Kojima
- Department of Internal Medicine, Murakami Memorial Hospital, Asahi University, Gifu
| | - S. Morimoto
- Department of Internal Medicine, Murakami Memorial Hospital, Asahi University, Gifu
| | - K. Inoue
- Department of Internal Medicine, Murakami Memorial Hospital, Asahi University, Gifu
| | - K. Ida
- Department of Internal Medicine, Murakami Memorial Hospital, Asahi University, Gifu
| | - S. Nakaji
- Medical Research and Development Department, Kuraray Co., Okayama - Japan
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26
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Kodama M, Katoh S. A clinical study of biochemical markers in Parkinson disease, and drug-induced Parkinsonism. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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27
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Katoh S, Shikama T, Suzuki T, Suzuki K, Daidoji H, Takahashi K, Fukui A, Tamada Y, Yahagi T, Matsui M, Goto T. P3349Stress-induced LV diastolic dysfunction predicts future cardiac events in patients with preserved ejection fraction. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3349] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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28
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Ito A, Shintaku I, Satoh M, Ioritani N, Tochigi T, Numata I, Namima T, Kambe K, Kyan A, Ueno S, Katoh S, Adachi H, Yamashita S, Yamaguchi T, Arai Y, Aizawa M, Kawamura S, Aoki H, Takeda A, Namiki S, Ikeda Y, Tokuyama S. Intravesical Seeding of Upper Urinary Tract Urothelial Carcinoma Cells During Nephroureterectomy: An Exploratory Analysis from the THPMG Trial. Jpn J Clin Oncol 2013; 43:1139-44. [DOI: 10.1093/jjco/hyt129] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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29
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Chhabra HS, Harvey LA, Muldoon S, Chaudhary S, Arora M, Brown DJ, Biering-Sorensen F, Wyndaele JJ, Charlifue S, Horsewell J, Ducharme S, Green D, Simpson D, Glinsky J, Weerts E, Upadhyay N, Aito S, Wing P, Katoh S, Kovindha A, Krassioukov A, Weeks C, Srikumar V, Reeves R, Siriwardane C, Hasnan N, Kalke YB, Lanig I. www.elearnSCI.org: a global educational initiative of ISCoS. Spinal Cord 2013; 51:176-82. [DOI: 10.1038/sc.2012.177] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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30
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Miyahara H, Nakashima R, Inoue M, Katsuda T, Yamaji H, Katoh S. Optimization and Performance of Silica-Based Media for Industrial-Scale Antibody Purification. Chem Eng Technol 2011. [DOI: 10.1002/ceat.201100245] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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31
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Ishikawa T, Hosoda M, Sorimachi A, Tokonami S, Katoh S, Ogashiwa S. Radiological characterization of commercially available “radon spa sources”. J Radioanal Nucl Chem 2010. [DOI: 10.1007/s10967-010-0812-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [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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32
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Kondo A, Takamatsu H, Katoh S, Sada E. Adsorption equilibrium in immunoaffnity chromatography with antibodies to synthetic peptides. Biotechnol Bioeng 2010; 35:146-51. [PMID: 18592504 DOI: 10.1002/bit.260350206] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The effects of charged residues in peptide antigens on the binding characteristics of polyclonal antipeptide antibodies were studied using immunoadsorbents prepared by coupling the antibodies to CNBr-activated Sepharose 4B. Among the antipeptide antibodies, an antibody to the peptide without charged residues showed the most stable interaction with the peptide to the changes in pH. Conversely, the binding affinity of antibodies to the pep-tides with histidine residues having a unique pKa value of 6.0 decreased steeply with pH at around 6.0. The binding affinity of an antibody to the peptide with many charged residues decreased steeply with an increase in the ionic strength (adjusted by NaCl). Since circular dichroism (CD) spectrum measurements indicate that these peptides show disordered structures in the pH range of adsorption measurement, the dependence of peptide-antibody interaction on environmental conditions is attributed to the characteristics of side chains of the peptides. These results indicate that the dependence of the binding affinity of antipeptide antibodies on pH and the ionic strength is dominantly affected by the number and the pKa values of charged residues in the peptides.
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Affiliation(s)
- A Kondo
- Chemical Engineering Department, Kyoto University, Kyoto 606, Japan
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33
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Katoh S, Maeda S, Fukuoka H, Wada T, Moriya S, Mori A, Yamaguchi K, Senda S, Miyagi T. A crucial role of sialidase Neu1 in hyaluronan receptor function of CD44 in T helper type 2-mediated airway inflammation of murine acute asthmatic model. Clin Exp Immunol 2010; 161:233-41. [PMID: 20491786 DOI: 10.1111/j.1365-2249.2010.04165.x] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
CD44 is a highly glycosylated cell adhesion molecule that is involved in lymphocyte infiltration of inflamed tissues. We have demonstrated previously that sialic acid residues of CD44 negatively regulates its receptor function and CD44 plays an important role in the accumulation of T helper type 2 (Th2) cells in the airway of a murine model of acute asthma. Here we evaluated the role of sialidase in the hyaluronic acid (HA) receptor function of CD44 expressed on CD4+ T cells, as well as in the development of a mite antigen-induced murine model of acute asthma. Splenic CD4+ T cell binding of HA was examined with flow cytometry. Expression of sialidases (Neu1, Neu2, Neu3 and Neu4) in spleen cells was evaluated by quantitative real-time reverse transcription-polymerase chain reaction. Airway inflammation and airway hyperresponsiveness (AHR) were evaluated in the asthmatic Neu1-deficient mouse strain SM/J model. Splenic CD4+ T cells from asthmatic model mice displayed increased HA receptor activity of CD44 after culture with the antigen, along with characteristic parallel induction of sialidase (Neu1) expression. This induction of HA binding was suppressed significantly by a sialidase inhibitor and was not observed in SM/J mice. Th2 cytokine concentration and absolute number of Th2 cells in the bronchoalveolar lavage fluid, and AHR were decreased in SM/J mice. In conclusion, HA receptor activity of CD44 and acute asthmatic reactions, including Th2-mediated airway inflammation and AHR, are dependent upon Neu1 enzymatic activity. Our observation suggests that Neu1 may be a target molecule for the treatment of asthma.
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Affiliation(s)
- S Katoh
- Department of Cell Regulation, Faculty of Medicine, Kagawa University, Kanagawa, Japan.
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Higashino K, Sairyo K, Katoh S, Nakano S, Enishi T, Yasui N. The effect of rheumatoid arthritis on the anatomy of the female cervical spine. ACTA ACUST UNITED AC 2009; 91:1058-63. [DOI: 10.1302/0301-620x.91b8.22300] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The effect of rheumatoid arthritis on the anatomy of the cervical spine has not been clearly documented. We studied 129 female patients, 90 with rheumatoid arthritis and 39 with other pathologies (the control group). There were 21 patients in the control group with a diagnosis of cervical spondylotic myelopathy, and 18 with ossification of the posterior longitudinal ligament. All had plain lateral radiographs taken of the cervical spine as well as a reconstructed CT scan. The axial diameter of the width of the pedicle, the thickness of the lateral mass, the height of the isthmus and internal height were measured. The transverse diameter of the transverse foramen (d1) and that of the spinal canal (d2) were measured, and the ratio d1/d2 calculated. The width of the pedicles and the thickness of the lateral masses were significantly less in patients with rheumatoid arthritis than in those with other pathologies. The area of the transverse foramina in patients with rheumatoid arthritis was significantly greater than that in the other patients. The ratio of d1 to d2 was not significantly different. A high-riding vertebral artery was noted in 33.9% of the patients with rheumatoid arthritis and in 7.7% of those with other pathologies. This difference was statistically significant. In the rheumatoid group there was a significant correlation between isthmus height and vertical subluxation and between internal height and vertical subluxation.
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Affiliation(s)
- K. Higashino
- Department of Orthopedics, School of Medicine The University of Tokushima, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
| | - K. Sairyo
- Department of Orthopedics, School of Medicine The University of Tokushima, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
| | - S. Katoh
- Department of Orthopedics, School of Medicine The University of Tokushima, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
| | - S. Nakano
- Department of Orthopedics, School of Medicine The University of Tokushima, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
| | - T. Enishi
- Department of Orthopedics, School of Medicine The University of Tokushima, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
| | - N. Yasui
- Department of Orthopedics, School of Medicine The University of Tokushima, 3-18-15 Kuramoto, Tokushima 770-8503, Japan
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Maruko A, Ohtake Y, Katoh S, Ohkubo Y. Transglutaminase down-regulates the dimerization of epidermal growth factor receptor in rat perivenous and periportal hepatocytes. Cell Prolif 2009; 42:647-56. [PMID: 19614676 DOI: 10.1111/j.1365-2184.2009.00622.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVE Recently, we found that transglutaminase 2 (TG2) might be involved in the difference in proliferative capacities between periportal hepatocytes (PPH) and perivenous hepatocytes (PVH) through down-regulation of high-affinity epidermal growth factor receptor (EGFR). However, it is uncertain whether this high-affinity EGFR contributes to the hepatocyte growth signalling pathway. Here, we have investigated the influence of TG2 on EGF-induced EGFR dimerization and its phosphorylation, which are important steps in the hepatocyte proliferative/growth signalling pathway, in PPH and PVH. MATERIALS AND METHODS PPH and PVH were isolated using the digitonin/collagenase perfusion technique. Amounts of TG2, EGFR dimerization and its phosphorylation were determined by Western blot analysis. RESULTS Pretreatment with monodansylcadaverine, an inhibitor of TG2, greatly increased EGF-induced EGFR dimerization and its phosphorylation in PVH compared with PPH. Conversely, treatment with retinoic acid, an inducer of TG2, significantly decreased EGF-induced EGFR dimerization and its phosphorylation with a significant increase in TG2 expression and its catalysed products, isopeptide bonds, in both subpopulations. It was found that EGFR served as a substrate for TG2. CONCLUSION The present data showed good correlation with our previous data on EGF-induced DNA synthesis and EGFR-binding affinity to EGF. These results suggest that zonal difference in cell growth between PPH and PVH may be caused by down-regulation of EGFR dimerization and subsequent autophosphorylation through TG2-mediated cross-linking of EGFR.
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Affiliation(s)
- A Maruko
- Department of Radiopharmacy, Tohoku Pharmaceutical University, Aoba-ku, Sendai, Miyagi, Japan
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Yuan Q, Kubo T, Doi K, Morita K, Takeshita R, Katoh S, Shiba T, Gong P, Akagawa Y. Effect of combined application of bFGF and inorganic polyphosphate on bioactivities of osteoblasts and initial bone regeneration. Acta Biomater 2009; 5:1716-24. [PMID: 19251495 DOI: 10.1016/j.actbio.2009.01.034] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2008] [Revised: 12/29/2008] [Accepted: 01/24/2009] [Indexed: 01/09/2023]
Abstract
Basic fibroblast growth factor (bFGF) and inorganic polyphosphate (poly(P)) have been recognized as therapeutic agents that enhance bone regeneration. It has also been shown that poly(P) may enhance the mitogenic activity of bFGF. The purpose of this study is to evaluate the combined effect of bFGF and poly(P) on bioactivities of osteoblasts and initial bone regeneration in vitro and in vivo. MC3T3-E1 cells were treated with bFGF, poly(P) or bFGF+poly(P), then subjected to cell proliferation assay, alkaline phosphatase (ALP) activity measurement, quantitative real-time reverse transcription-polymerase chain reaction and Alizarin S Red staining. In an in vivo study, bFGF-, poly(P)- and bFGF+poly(P)-modified interconnected porous hydroxyapatite (IPHA) complexes were fabricated, and placed into the femurs of rabbits to evaluate new bone formation histologically and histomorphometrically. The highest enhancement of cell proliferation were observed in those treated with bFGF+poly(P) on days 5 and 7. Cells treated with bFGF+poly(P) also exhibited increased ALP activity on days 5 and 10, up-regulated mRNA levels of osteocalcin and osteopontin, and enhanced calcification when compared to the non-treated cells. In vivo, the highest bone formation ratio was observed in bFGF+poly(P)-modified IPHA complexes. This study indicated that co-application of bFGF and poly(P) may provide enhanced bone formation by modulating cell proliferation and the mineralization process. It is anticipated that a combined application of bFGF and poly(P) can provide a novel method for bone regeneration in clinical use.
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Sairyo K, Sakai T, Higashino K, Hirao B, Katoh S, Yasui N. Minimally Invasive Excision of Lumbar Epidural Lipomatosis Using a Spinal Endoscope. ACTA ACUST UNITED AC 2008; 51:43-6. [DOI: 10.1055/s-2007-1004569] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Higashino K, Sairyo K, Katoh S, Sakai T, Kosaka H, Yasui N. Minimally invasive technique for direct repair of the pars defects in young adults using a spinal endoscope: a technical note. ACTA ACUST UNITED AC 2007; 50:182-6. [PMID: 17882757 DOI: 10.1055/s-2007-982511] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Pars defect (spondylolysis) of the lumbar spine can cause chronic low back pain, and it sometimes requires surgical intervention. Direct repair is selected for the surgery if young adult patients do not present significant disc degeneration and lumbar instability. In order to lessen damages of back muscles during surgery, we added the use of a spinal endoscope to the "Buck's screwing procedure" the direct repair. There are four steps in this procedure: 1) identification of the defect, 2) curettage (refresh) of the defect, 3) percutaneous insertion of the annulated screws and 4) cancellous bone grafting. All these steps can be done endoscopically. We treated 3 young adults--a baseball player, a professional cycle-racer and a sculptor--using this endoscopic procedure. There were no complications during or after the operation. Union was obtained in all defects within 3 months, and they returned to their previous activities within 6 months after the surgery.
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Affiliation(s)
- K Higashino
- Department of Orthopedics, The University of Tokushima, Tokushima, Japan
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Tonogai I, Sairyo K, Higashino K, Sakai T, Katoh S, Yasui N. Minimally invasive endoscopic removal of a herniated nucleus pulposus that had migrated to the S1 nerve root foramen. ACTA ACUST UNITED AC 2007; 50:173-7. [PMID: 17882755 DOI: 10.1055/s-2007-982510] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
In this report, we described an adult case with a lumbar herniated nucleus pulposus that had migrated to the S1 nerve root foramen from L5-S1 disc space. Endoscopically, the migrated mass was successfully removed after laminectomy at the S1 with a small skin incision of 20 mm in length. Unlike the other levels, the intraforaminally migrated mass along the S1 root can be excised without any removal of the facet joints; therefore, additional spinal fusion is not necessary. Thus, an S1 foraminal migrated mass can be a good surgical candidate for minimally invasive endoscopic surgery.
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Affiliation(s)
- I Tonogai
- Department of Orthopedics, The University of Tokushima School of Medicine, Tokushima, Japan
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Maruyama K, Sutani Y, Abe Y, Motohiro M, Tsujimoto S, Katoh S. PO22-716 THE EFFECTS OF TELMISARTAN IN PATIENTS WITH METABOLIC SYNDROME. ATHEROSCLEROSIS SUPP 2007. [DOI: 10.1016/s1567-5688(07)71726-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Inui A, Sairyo K, Katoh S, Higashino K, Sakai T, Shiiba M, Yasui N. Extruded lumbar osseous endplate causing long-term radiculopathy in an adult: an endoscopic excision. ACTA ACUST UNITED AC 2006; 49:55-7. [PMID: 16547884 DOI: 10.1055/s-2005-919165] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
In this report, we described an adult case that had a long-term radiculopathy due to an extruded osseous endplate of the lumbar spine at the L5-S1 intervertebral disc level. The osseous material inside the extruded material was not absorbed, and it had continued compressing the nerve root for one year. Endoscopically, the bony fragment was successfully removed. After the surgery, the patient's symptom disappeared, and neurological deficits became normalized. In conclusion, we propose that surgical intervention should be taken into account for the treatment of HNP, when the extruded material contains bony fragment such as osseous endplate.
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Affiliation(s)
- A Inui
- Department of Orthopedics, The University of Tokushima School of Medicine, Tokushima, Japan
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Hasan F, Kumada Y, Hashimoto N, Katsuda T, Terashima M, Katoh S. Fragmentation of Angiotensin-I Converting Enzyme Inhibitory Peptides from Bonito Meat Under Intestinal Digestion Conditions and their Characterization. Food and Bioproducts Processing 2006. [DOI: 10.1205/fbp.05152] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Higashino K, Katoh S, Sairyo K, Sakai T, Kosaka H, Yasui N. Preservation of C7 spinous process does not influence the long-term outcome after laminoplasty for cervical spondylotic myelopathy. Int Orthop 2006; 30:362-5. [PMID: 16738851 PMCID: PMC3172770 DOI: 10.1007/s00264-005-0062-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2005] [Accepted: 11/15/2005] [Indexed: 10/24/2022]
Abstract
Axial pain is one of the major complications after laminoplasty, and preservation of C7 spinous process during the procedure can reduce the axial pain. However, it has not been elucidated whether laminoplasty preserving the C7 spinous process can maintain neurological improvement for a long time. The purpose of our retrospective study was to investigate the long-term neurological outcome after open-door laminoplasty preserving the C7 spinous process for cervical spondylotic myelopathy (CSM). Clinical and radiological outcomes were analysed in 42 patients who underwent open-door laminoplasty preserving C7 spinous process and followed up for more than 5 years. Neurological function was evaluated by means of the Japanese Orthopaedic Association (JOA) scoring system for cervical myelopathy. Axial pain was assessed using a visual analog scale (VAS) at the last examination. Alignment and motion of the cervical spine were measured from radiographs, and magnetic resonance imaging (MRI) was used to evaluate postoperative compression at C7. The mean JOA score was 9.4 before surgery and 12.0 at the latest follow-up. The mean VAS score in 26 patients score was 9.7/100. No compression of the spinal cord was observed in any MRI at the latest follow-up. Preservation of the C7 spinous process does not influence the long-term outcome of CSM after laminoplasty. Although we did not have a comparative group, the procedure described here should be considered as the solution.
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Affiliation(s)
- K. Higashino
- Department of Orthopedics, Institute of Health Biosciences, University of Tokushima Graduate School, 23-18-15, Kuramoto, Tokushima, 770-8503 Japan
| | - S. Katoh
- Department of Orthopedics, Institute of Health Biosciences, University of Tokushima Graduate School, 23-18-15, Kuramoto, Tokushima, 770-8503 Japan
| | - K. Sairyo
- Department of Orthopedics, Institute of Health Biosciences, University of Tokushima Graduate School, 23-18-15, Kuramoto, Tokushima, 770-8503 Japan
| | - T. Sakai
- Department of Orthopedics, Institute of Health Biosciences, University of Tokushima Graduate School, 23-18-15, Kuramoto, Tokushima, 770-8503 Japan
| | - H. Kosaka
- Department of Orthopedics, Institute of Health Biosciences, University of Tokushima Graduate School, 23-18-15, Kuramoto, Tokushima, 770-8503 Japan
| | - N. Yasui
- Department of Orthopedics, Institute of Health Biosciences, University of Tokushima Graduate School, 23-18-15, Kuramoto, Tokushima, 770-8503 Japan
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Higashino K, Matsui Y, Yagi S, Takata Y, Goto T, Sakai T, Katoh S, Yasui N. The alpha2 type IX collagen tryptophan polymorphism is associated with the severity of disc degeneration in younger patients with herniated nucleus pulposus of the lumbar spine. Int Orthop 2006; 31:107-11. [PMID: 16586133 PMCID: PMC2267527 DOI: 10.1007/s00264-006-0117-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2006] [Revised: 01/20/2006] [Accepted: 02/10/2006] [Indexed: 10/24/2022]
Abstract
Tryptophan alleles in COL9A2 (Trp2) and COL9A3 (Trp3) have been linked to lumbar disc diseases in the Finnish population. Although such diseases consist of various pathogenetically different conditions, detailed analysis of each has not been well documented. The aim of this study was to clarify whether the collagen IX tryptophan alleles influence the symptomatic degeneration of the lumbar disc in Japanese patients with herniated nucleus pulposus. We performed a prospective study of 84 patients who underwent lumbar discectomy. The degree of disc degeneration was evaluated by magnetic resonance images in relation to the collagen IX genotype. Twenty patients (21.4%) had the Trp2 allele and no patients had the Trp3 allele. Patients under 40 years with the Trp2 allele showed more severe disc degeneration at the surgical level than did those without the Trp2 allele (odds ratio 6.00, P=0.043). In contrast, patients aged 40 years or over did not show significant association between disc degeneration and collagen IX genotype. Our results suggest that the Trp2 allele is an age-dependent risk factor for the severity of disc degeneration in younger patients with symptomatic herniated nucleus pulposus of the lumbar spine.
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Affiliation(s)
- K. Higashino
- Department of Orthopedics, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
| | - Y. Matsui
- Department of Orthopedic Surgery, Osaka University Medical School, 2-2, Yamadaoka, Suita, Osaka 565-0871 Japan
| | - S. Yagi
- Department of Orthopedic Surgery, Takamatsu Red Cross Hospital, Takamatsu, Japan
| | - Y. Takata
- Department of Orthopedics, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
| | - T. Goto
- Department of Orthopedics, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
| | - T. Sakai
- Department of Orthopedics, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
| | - S. Katoh
- Department of Orthopedics, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
| | - N. Yasui
- Department of Orthopedics, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
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Sasaki S, Kondo T, Sata F, Saijo Y, Katoh S, Nakajima S, Ishizuka M, Fujita S, Kishi R. Maternal smoking during pregnancy and genetic polymorphisms in the Ah receptor, CYP1A1 and GSTM1 affect infant birth size in Japanese subjects. Mol Hum Reprod 2006; 12:77-83. [PMID: 16481407 DOI: 10.1093/molehr/gal013] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Genetic susceptibility to tobacco smoke might have relation to adverse pregnancy outcomes. To estimate the effects of maternal smoking and genetic polymorphisms on infant birth weight and length, we conducted a prospective cohort study of 293 women who delivered singleton live births in Sapporo, Japan. Birth weight and length were significantly lower among infants born to continuously smoking women having the aryl hydrocarbon receptor (AhR) wild type genotype (Arg/Arg; 211 g +/- 76 g; 1.2 cm +/- 0.4 cm, p < 0.01 and p < 0.01, respectively), the CYP1A1 variant genotype (m1/m2 + m2/m2; 170 g +/- 64 g, 0.8 cm +/- 0.3 cm, p < 0.01 and p < 0.05, respectively), or the GSTM1 null genotype (171 g +/- 58 g, 0.6 cm +/- 0.3 cm, p < 0.01 and p < 0.05, respectively). When combinations of these genotypes were considered, birth weight and length were significantly lower for infants of continuously smoking women in the AhR wild type + CYP1A1 variant group (315 g +/- 116 g; 1.7 cm +/- 0.6 cm, p < 0.01 and p < 0.01, respectively) and in the CYP1A1 variant + GSTM1 null group (237 g +/- 92 g; 1.3 cm +/- 0.5 cm, p < 0.05 and p < 0.01, respectively). These genotypes did not confer adverse effects among women who had never smoked; therefore, maternal smoking in combination with maternal AhR, CYP1A1 and GSTM1 genetic polymorphisms may adversely affect infant birth size.
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Affiliation(s)
- S Sasaki
- Department of Public Health, Graduate School of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo 060-8638, Japan
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Hu G, Jousilahti P, Qiao Q, Katoh S, Tuomilehto J. Sex differences in cardiovascular and total mortality among diabetic and non-diabetic individuals with or without history of myocardial infarction. Diabetologia 2005; 48:856-61. [PMID: 15827741 DOI: 10.1007/s00125-005-1730-6] [Citation(s) in RCA: 111] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2004] [Accepted: 01/06/2005] [Indexed: 01/24/2023]
Abstract
AIMS/HYPOTHESIS We investigated the associations of type 2 diabetes and a history of myocardial infarction (MI) with coronary heart disease, stroke, cardiovascular and total mortality, and whether these effects are different in men and women. METHODS Study cohorts included 51,735 Finnish men and women aged 25-74 years. Smoking status and the history of MI and type 2 diabetes were recorded, and height, weight, blood pressure and serum cholesterol levels were measured at baseline. Additional data on the occurrence of diabetes and MI prior to baseline survey were obtained from national hospital discharge and drug registers through computerised register linkage. Mortality data were obtained from the national mortality register. RESULTS During a mean follow-up period of 17.2 years, 9,201 deaths were recorded. Hazard ratios (HRs) for coronary mortality were 2.1, 4.0 and 6.4 among men with diabetes alone, men with MI alone, and men with diabetes and MI, respectively, compared with men with neither diabetes nor a history of MI. The corresponding HRs among women were 4.9, 2.5 and 9.4, respectively. The equivalent HRs for cardiovascular and total mortality were 2.2, 3.3 and 6.0, and 1.8, 2.3 and 3.7 in men, and 4.4, 2.4 and 6.5, and 3.2, 1.7 and 4.4 in women, respectively. Diabetic men and women had similar total mortality rates, whereas total mortality rates were markedly higher among men in the other three diabetes-MI categories. CONCLUSIONS/INTERPRETATION Diabetes and MI markedly increase cardiovascular and all-cause mortality. In women, the association between diabetes and mortality was stronger than that between MI and mortality, whereas the converse was true among men.
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Affiliation(s)
- G Hu
- Diabetes and Genetic Epidemiology Unit, Department of Epidemiology and Health Promotion, National Public Health Institute, Mannerheimintie 166, 00300 Helsinki, Finland.
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Katoh S, Matsumoto N, Matsumoto K, Fukushima K, Matsukura S. Elevated interleukin-18 levels in bronchoalveolar lavage fluid of patients with eosinophilic pneumonia. Allergy 2004; 59:850-6. [PMID: 15230818 DOI: 10.1111/j.1398-9995.2004.00492.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Interleukin (IL)-18 can induce Th2 cytokine production particularly in collaboration with IL-2. Accumulation of Th2 cells and increased levels of Th2 cytokines are found in bronchoalveolar lavage fluid (BALF) from patients with eosinophilic pneumonia (EP). To evaluate the role of IL-18 in the pathogenesis of EP, we measured the concentration of IL-2, IL-12, IL-18, and Th2 cytokines in BALF from patients with EP. METHODS The concentrations of interferon (IFN)-gamma, IL-2, IL-5, IL-10, IL-12, IL-13, and IL-18 in BALF were measured in patients with idiopathic acute eosinophilic pneumonia (AEP), with idiopathic chronic eosinophilic pneumonia (CEP), with sarcoidosis and healthy volunteers (HV). RESULTS The BALF concentrations of Th2 cytokines, IL-5, IL-10, and IL-13, were higher in patients with EP than in sarcoidosis and control. The IL-2 level in BALF was higher in EP than in sarcoidosis and control. The IL-18 and IL-12 (p40 + p70) levels were higher in patients with EP than sarcoidosis, while the level of IL-12 (p70) was below the detection limit in patients with EP. There was a significant correlation between IL-2 level and both IL-5 and IL-13 in BALF of patients with EP. CONCLUSIONS Our findings suggest that IL-18 may contribute to Th2 cytokine-dominant responses in patients with EP in collaboration with IL-2.
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Affiliation(s)
- S Katoh
- Third Department of Internal Medicine, Miyazaki Medical College, 5200 Kihara, Kiyotake, Miyazaki 889-1692, Japan
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Niimi S, Hiramatsu Y, Katoh S. [Computed tomography findings of pulmonary benign lesion in the peripheral region]. Kyobu Geka 2004; 57:375-7. [PMID: 15151036] [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: 04/29/2023]
Abstract
We evaluated computed tomography (CT) images in 22 cases of pulmonary granulomas less than 2 cm in diameter which preoperative diagnosis was difficult. In these lesions, air-containing type, irregular undulation of margin, pleural indentation, accompanying shadow and involvement of pulmonary artery was observed on CT images. The accompanying shadow and the absence of pulmonary vein relate to the lesion may have relevance in pulmonary benign lesion.
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Affiliation(s)
- S Niimi
- Department of Respiratory Surgery, National Center for Geriatrics and Gerontology, Oobu, Japan
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