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Yokoyama D, Tsuboi Y, Abe H, Nagahata R, Konno H, Yoshida M, Kikuchi J. Quantification of microbial community assembly processes during degradation on diverse plastispheres based on physicochemical characters and phylogenetic bin-based null model analysis. Sci Total Environ 2024; 931:172401. [PMID: 38677413 DOI: 10.1016/j.scitotenv.2024.172401] [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] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/31/2024] [Accepted: 04/09/2024] [Indexed: 04/29/2024]
Abstract
To understand the differences in degradation processes depending on the chemical properties of polymers, it is necessary to both quantify the microbiome composition and evaluate the process of microbial turnover (i.e., community assembly processes) in a variety of polymer materials. In this study, using a phylogenetic bin-based null model analysis (i.e., iCAMP), we evaluated community assembly processes from original estuary water to 37 types of polymers, which provide overwhelmingly diverse niches for microbes, in 14-day incubation experiments. First, we evaluated the polymer properties related to degradation rates. Polymers with higher adipic acid (AdA) monomer exhibited higher motility, hydrophilicity, and degradation rates, whereas those with higher aromatic monomer exhibited the opposite trends. Second, microbiome composition analysis was performed, and the microbiomes were significantly changed by the AdA or aromatic content. This was consistent with the polymer properties, suggesting that polymer motility and hydrophilicity attributable to the first-order structure modify the accessibility of the enzyme to the reaction site and hence the degradation rate, resulting in differences in microbiome community composition. Finally, we determined community assembly processes from estuary water to plastics using a phylogenetic bin-based null model analysis. The importance of heterogeneous selection was higher in mobile, hydrophilic, and fast-degrading polymers, while that of homogeneous selection was lower. This suggests that the environmental difference between before and after incubation becomes significant under rapid degradation, which select microbes adapted to biofilm environments. In addition, the more stochastic turnover prevailed, the more variation in the communities (i.e., β-diversity) increased. This suggests that turnover processes not dictated by the environment lead to instability in community compositions.
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Affiliation(s)
- Daiki Yokoyama
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan; Graduate School of Medical Life Science, Yokohama City University, 1-7-29 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Yuri Tsuboi
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Hideki Abe
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Ritsuko Nagahata
- Research Institute for Chemical Process Technology, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Hideo Konno
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Masaru Yoshida
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Jun Kikuchi
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan; Graduate School of Medical Life Science, Yokohama City University, 1-7-29 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan; Graduate School of Bioagricultural Sciences, Nagoya University, 1 Furo-cho, Chikusa-ku, Nagoya, Aichi 464-0810, Japan.
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Okada KI, Yokoyama D, Aiba SI, Kitayama K. Exploration capacity versus specific enzymatic activity of ectomycorrhizas in response to primary productivity and soil phosphorus availability in Bornean tropical rainforests. Sci Rep 2024; 14:2842. [PMID: 38310149 PMCID: PMC10838334 DOI: 10.1038/s41598-024-53234-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 01/30/2024] [Indexed: 02/05/2024] Open
Abstract
Ectomycorrhizal (ECM) fungi are functionally important in biogeochemical cycles in tropical ecosystems. Extracellular enzymatic activity of ECM on a ground-area basis is the product of two attributes; exploration capacity (ECM surface-area) and specific enzymatic activity. Here, we elucidated which attribute better explained the ECM enzymatic activity in response to different levels of soil phosphorus (P) and Nitrogen (N) availability in five Bornean tropical rainforests. We determined the surface area of ECM root tips as well as the enzymatic activities per ECM surface area for carbon (C), N and P degrading enzymes in each site. We evaluated the relationship of ECM enzyme activities with the resource availabilities of C (Above-ground net primary production; ANPP), N, and P of ECM by a generalized linear mixed model. The ECM enzymatic activities on a ground-area basis were more significantly determined by specific enzymatic activity than by the exploration capacity. Specific enzymatic activities were generally negatively affected by C (ANPP) and soil P availability. ECM fungi enhance the specific enzyme activity rather than the exploration capacity to maintain the capacity of nutrient acquisition. The less dependence of ECM fungi on the exploration capacity in these forests may be related to the limitation of C supply from host trees. We highlighted the adaptive mechanisms of ECM fungi on nutrient acquisition in tropical ecosystems through the response of enzymatic activity to nutrient availability across the elements.
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Affiliation(s)
- Kei-Ichi Okada
- Faculty of Bioindustry, Tokyo University of Agriculture, Abashiri, Japan.
- Graduate School of Environment and Information Sciences, Yokohama National University, Yokohama, Japan.
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan.
| | - Daiki Yokoyama
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
- Center for Sustainable Resource Science, RIKEN, Yokohama, Japan
| | - Shin-Ichiro Aiba
- Faculty of Environmental Earth Science, Hokkaido University, Sapporo, Japan
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Koike T, Mukai M, Kishima K, Yokoyama D, Uda S, Hasegawa S, Tajima T, Izumi H, Nomura E, Sugiyama T, Tajiri T. The association between surgical site infection and postoperative colorectal cancer recurrence and the effect of laparoscopic surgery on prognosis. Langenbecks Arch Surg 2024; 409:40. [PMID: 38225456 DOI: 10.1007/s00423-024-03234-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 01/09/2024] [Indexed: 01/17/2024]
Abstract
PURPOSE Studies have shown that surgical site infection (SSI) incidence is lower in patients undergoing laparoscopic surgery. Therefore, we reported the SSI countermeasures adopted by our institution and aimed to evaluate the association between SSI occurrence and postoperative colorectal cancer recurrence and the usefulness of laparoscopic surgery for prognosis. METHODS Among the patients with colorectal cancer who underwent radical surgery at our hospital between January 2015 and December 2017, 197 with stage I-III cancer without distant metastases were included. We retrospectively analyzed patients' electronic medical records and classified them into the non-SSI (without SSI, n = 159) and SSI (with SSI, n = 38) groups. We calculated and compared the 5-year relapse-free survival (RFS) and overall survival (OS) rates. Additionally, we assessed the relationship between prognosis in the non-SSI, incisional SSI, and organ/space SSI groups and the usefulness of laparoscopic surgery. RESULTS The 5-year RFS and OS were 80.5% versus 63.2% (P = 0.024; hazard ratio [HR], 2.065; 95% confidence interval [CI], 1.099-3.883) and 88.7% versus 84.2% (P = 0.443; HR, 1.436; 95% CI, 0.570-3.617), respectively. The SSI group had a significantly worse 5-year RFS prognosis. Regarding the relationship with laparoscopic surgery, the SSI incidence was 45.0% (9/20 cases) and 16.4% (29/177 cases) with laparotomy and laparoscopic surgery, respectively, indicating a significantly reduced SSI occurrence with laparoscopic surgery (P = 0.005). CONCLUSION Patients with SSI were at high risk for colorectal cancer recurrence, and laparoscopic surgery may be useful for reducing SSI.
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Affiliation(s)
- Takuya Koike
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo, Japan.
| | - Masaya Mukai
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo, Japan
| | - Kyoko Kishima
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo, Japan
| | - Daiki Yokoyama
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo, Japan
| | - Shuji Uda
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo, Japan
| | - Sayuri Hasegawa
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo, Japan
| | - Takayuki Tajima
- Department of Surgery, Tokai University Tokyo Hospital, Shibuya-Ku, Tokyo, Japan
| | - Hideki Izumi
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo, Japan
| | - Eiji Nomura
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo, Japan
| | - Tomoko Sugiyama
- Department of Pathology, Tokai University Hachioji Hospital, Hachioji, Tokyo, Japan
| | - Takuma Tajiri
- Department of Pathology, Tokai University Hachioji Hospital, Hachioji, Tokyo, Japan
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Kudo H, Han N, Yokoyama D, Matsumoto T, Chien MF, Kikuchi J, Inoue C. Bayesian network highlights the contributing factors for efficient arsenic phytoextraction by Pteris vittata in a contaminated field. Sci Total Environ 2023; 899:165654. [PMID: 37478955 DOI: 10.1016/j.scitotenv.2023.165654] [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] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 07/17/2023] [Accepted: 07/17/2023] [Indexed: 07/23/2023]
Abstract
Phytoextraction is a low-cost and eco-friendly method for removing pollutants, such as arsenic (As), from contaminated soil. One of the most studied As hyperaccumulators for soil remediation include Pteris vittata. Although phytoextraction using plant-assisted microbes has been considered a promising soil remediation method, microbial harnessing has not been achieved due to the complex and difficult to understand interactions between microbes and plants. This problem can possibly be addressed with a multi-omics approach using a Bayesian network. However, limited studies have used Bayesian networks to analyze plant-microbe interactions. Therefore, to understand this complex interaction and to facilitate efficient As phytoextraction using microbial inoculants, we conducted field cultivation experiments at two sites with different total As contents (62 and 8.9 mg/kg). Metabolome and microbiome data were obtained from rhizosphere soil samples using nuclear magnetic resonance and high-throughput sequencing, respectively, and a Bayesian network was applied to the obtained multi-omics data. In a highly As-contaminated site, inoculation with Pseudomonas sp. strain m307, which is an arsenite-oxidizing microbe having multiple copies of the arsenite oxidase gene, increased As concentration in the shoots of P. vittata to 157.5 mg/kg under this treatment; this was 1.5-fold higher than that of the other treatments. Bayesian network demonstrated that strain m307 contributed to As accumulation in P. vittata. Furthermore, the network showed that microbes belonging to the MND1 order positively contributed to As accumulation in P. vittata. Based on the ecological characteristics of MND1, it was suggested that the rhizosphere of P. vittata inoculated with strain m307 was under low-nitrogen conditions. Strain m307 may have induced low-nitrogen conditions via arsenite oxidation accompanied by nitrate reduction, potentially resulting in microbial iron reduction or the prevention of microbial iron oxidation. These conditions may have enhanced the bioavailability of arsenate, leading to increased As accumulation in P. vittata.
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Affiliation(s)
- Hiroshi Kudo
- Graduate School of Environmental Studies, Tohoku University, 6-6-20 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan.
| | - Ning Han
- Graduate School of Environmental Studies, Tohoku University, 6-6-20 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan
| | - Daiki Yokoyama
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan.; Graduate School of Medical Life Science, Yokohama City University, 1-7-29 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Tomoko Matsumoto
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Mei-Fang Chien
- Graduate School of Environmental Studies, Tohoku University, 6-6-20 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan
| | - Jun Kikuchi
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan.; Graduate School of Medical Life Science, Yokohama City University, 1-7-29 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan; Graduate School of Bioagricultural Sciences, Nagoya University, 1 Furo-cho, Chikusa-ku, Nagoya, Aichi 464-0810, Japan
| | - Chihiro Inoue
- Graduate School of Environmental Studies, Tohoku University, 6-6-20 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan
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Yokoyama D, Kikuchi J. Inferring microbial community assembly in an urban river basin through geo-multi-omics and phylogenetic bin-based null-model analysis of surface water. Environ Res 2023; 231:116202. [PMID: 37211183 DOI: 10.1016/j.envres.2023.116202] [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] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 05/01/2023] [Accepted: 05/18/2023] [Indexed: 05/23/2023]
Abstract
Understanding the community assembly process is a central issue in microbial ecology. In this study, we analyzed the community assembly of particle-associated (PA) and free-living (FL) surface water microbiomes in 54 sites from the headstream to the river mouth of an urban river in Japan, the river basin of which has the highest human population density in the country. Analyses were conducted from two perspectives: (1) analysis of deterministic processes considering only environmental factors using a geo-multi-omics dataset and (2) analysis of deterministic and stochastic processes to estimate the contributions of heterogeneous selection (HeS), homogeneous selection (HoS), dispersal limitation (DL), homogenizing dispersal (HD), and drift (DR) as community assembly processes using a phylogenetic bin-based null model. The variation in microbiomes was successfully explained from a deterministic perspective by environmental factors, such as organic matter-related, nitrogen metabolism, and salinity-related parameters, using multivariate statistical analysis, network analysis, and habitat prediction. In addition, we demonstrated the dominance of stochastic processes (DL, HD, and DR) over deterministic processes (HeS and HoS) in community assembly from both deterministic and stochastic perspectives. Our analysis revealed that as the distance between two sites increased, the effect of HoS sharply decreased while the effect of HeS increased, particularly between upstream and estuary sites, indicating that the salinity gradient could potentially enhance the contribution of HeS to community assembly. Our study highlights the importance of both stochastic and deterministic processes in community assembly of PA and FL surface water microbiomes in urban riverine ecosystems.
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Affiliation(s)
- Daiki Yokoyama
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan; Graduate School of Medical Life Science, Yokohama City University, 1-7-29 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan.
| | - Jun Kikuchi
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan; Graduate School of Medical Life Science, Yokohama City University, 1-7-29 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan; Graduate School of Bioagricultural Sciences, Nagoya University, 1 Furo-cho, Chikusa-ku, Nagoya, Aichi 464-0810, Japan
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Yokoyama D, Takamura A, Tsuboi Y, Kikuchi J. Large-scale omics dataset of polymer degradation provides robust interpretation for microbial niche and succession on different plastisphere. ISME Commun 2023; 3:67. [PMID: 37400632 PMCID: PMC10317964 DOI: 10.1038/s43705-023-00275-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 05/29/2023] [Accepted: 06/21/2023] [Indexed: 07/05/2023]
Abstract
While biodegradable polymers have received increased attention due to the recent marine plastic problem, few studies have compared microbiomes and their degradation processes among biodegradable polymers. In this study, we set up prompt evaluation systems for polymer degradation, allowing us to collect 418 microbiome and 125 metabolome samples to clarify the microbiome and metabolome differences according to degradation progress and polymer material (polycaprolactone [PCL], polybutylene succinate-co-adipate [PBSA], polybutylene succinate [PBS], polybutylene adipate-co-terephthalate [PBAT], and poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) [PHBH]). The microbial community compositions were converged to each polymer material, and the largest differences were observed between PHBH and other polymers. Such gaps were probably formed primarily by the presence of specific hydrolase genes (i.e., 3HB depolymerase, lipase, and cutinase) in the microorganisms. Time-series sampling suggested several steps for microbial succession: (1) initial microbes decrease abruptly after incubation starts; (2) microbes, including polymer degraders, increase soon after the start of incubation and show an intermediate peak; (3) microbes, including biofilm constructers, increase their abundance gradually. Metagenome prediction showed functional changes, where free-swimming microbes with flagella adhered stochastically onto the polymer, and certain microbes started to construct a biofilm. Our large-dataset-based results provide robust interpretations for biodegradable polymer degradation.
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Affiliation(s)
- Daiki Yokoyama
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan
- Graduate School of Medical Life Science, Yokohama City University, 1-7-29 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan
| | - Ayari Takamura
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan
| | - Yuuri Tsuboi
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan
| | - Jun Kikuchi
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan.
- Graduate School of Medical Life Science, Yokohama City University, 1-7-29 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0045, Japan.
- Graduate School of Bioagricultural Sciences, Nagoya University, 1 Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-0810, Japan.
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Higami S, Mukai M, Yokoyama D, Uda S, Abe R, Mamuro N, Kishima K, Hasegawa S, Tajima T, Nomura E, Makuuchi H. A single-center retrospective analysis of the efficacy and safety of a modified regimen of irinotecan plus S-1 (IRIS) with molecular targeting agents as second-line chemotherapy in Japanese patients with recurrent or nonresectable colorectal cancer. J Gastrointest Oncol 2023; 14:663-675. [PMID: 37201062 PMCID: PMC10186548 DOI: 10.21037/jgo-22-899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 03/21/2023] [Indexed: 05/20/2023] Open
Abstract
Background As the second-line chemotherapy for stage IV recurrent or nonresectable colorectal cancer, our hospital started a modified treatment regimen comprising of irinotecan plus S-1 (IRIS) [tegafur/gimeracil/oteracil (S-1)] plus molecular targeting agents (MTAs), i.e., an epidermal growth factor receptor (EGFR) inhibitor such as panitumumab (P-mab) or cetuximab (C-mab) or vascular endothelial growth factor (VEGF) inhibitor such as bevacizumab (B-mab) since October 2012. The purpose of this study is to evaluate the efficacy and safety of this modified regimen. Methods This retrospective study included 41 patients with advanced recurrent colorectal cancer at our hospital whom at least 3 courses of chemotherapy were conducted from January 2015 to December 2021. Based on the location of the primary tumor, patients were classified into two group (right-sided group, proximal to the splenic curve, and left-sided, distal to the splenic curve). We assessed archived data on RAS and BRAF status and UGT1A1 polymorphisms and use of the VEGF inhibitor bevacizumab (B-mab) and the EGFR inhibitors panitumumab (P-mab) and cetuximab (C-mab). In addition, progression-free survival rate (36M-PFS) and the overall survival rate (36M-OS) were calculated. Furthermore, the respective median survival time (MST), the median number of treatment courses; the objective response rate (ORR) and clinical benefit rate (CBR) and the incidence of adverse events (AEs) were assessed as well. Results There were 11 patients (26.8%) in the right-sided group, and 30 patients (73.2%) in the left-sided group. There were 19 patients with RAS wild type (46.3%) (1 in the right sided group and 18 in the left sided group). P-mab was used for 16 of these patients (84.2%), C-mab for 2 (10.5%), and B-mab for 1 (5.3%); the remaining 22 patients (53.7%). Ten patients in the right group and 12 patients in the left group were a mutated type and received B-mab. BRAF testing was performed in 17 patients (41.5%); as more than 50% of patients (58.5%) were included before the assay's introduction. Five patients in the right-sided group and 12 patients in the left-sided group had wild type. There was no mutated type. UGT1A1 polymorphism was tested in 16/41 patients: Eight were wild type (8/41 patients, 19.5%) and 8, mutated type. Regarding the *6/*28 double heterozygous type, there was only 1 patient in the right-sided group and the remaining 7 patients were in the left-sided group. The total number of chemotherapy courses was 299, and the median number, 6.0 (range, 3-20). PFS, OS, and MST were as follows: 36M-PFS (total/Rt/Lt), 6.2%/0.0%/8.5% (MST; 7.6/6.3/8.9 months); and 36M-OS (total/Rt/Lt), 32.1%/0.0%/44.0% (MST; 22.1/18.8/28.6 months). The ORR and CBR were 24.4% and 75.6%, respectively. The majority of AEs were grades 1 or 2 and were improved with conservative treatment. Grade 3 leukopenia was observed in 2 cases (4.9%), neutropenia in 4 cases (9.8%), and malaise/nausea/diarrhea/perforation in 1 case each (2.4%). Grade 3 leukopenia (2 patients) and neutropenia (3 patients) were more commonly observed in the left-sided group. Diarrhea and perforation were also common in the left-sided group. Conclusions This second-line modified IRIS regimen with MTAs is safe and effective and results in good PFS and OS.
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Yamada S, Tsuboi Y, Yokoyama D, Kikuchi J. Polymer composition optimization approach based on feature extraction of bound and free water using time-domain nuclear magnetic resonance. J Magn Reson 2023; 351:107438. [PMID: 37084520 DOI: 10.1016/j.jmr.2023.107438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 03/30/2023] [Accepted: 04/05/2023] [Indexed: 05/03/2023]
Abstract
As global environmental sustainability becomes increasingly emphasized, the development of eco-friendly materials, including solutions to the issue of marine plastics, is thriving. However, the material parameter space is vast, making efficient search a challenge. Time-domain nuclear magnetic resonance offers material property information through the complex T2 relaxation curves resulting from multiple mobilities. In this research, we used the Carr-Purcell-Meiboom-Gill (CPMG) pulse sequence to evaluate the binding state of water (water affinity) in polymers synthesized with various monomer compositions, which were immersed in seawater. We also assessed the T2 relaxation property of the polymers using the magic sandwich echo, double quantum filter, and magic-and-polarization echo filter techniques. We separated the T2 relaxation curves of CPMG into free and bound water for polymers by employing semisupervized nonnegative matrix factorization. By employing the features of separated bound water and polymer properties, a polymer composition optimization method offered crucial factors to monomers through random forests, predicted the components of the polymer using generative topography mapping regression, and determined expected values using Bayesian optimization for polymer composition candidates with the desired high water affinity and high rigidity.
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Affiliation(s)
- Shunji Yamada
- RIKEN Center for Sustainable Resource Science, 1-7-22, Tsurumi-ku, Yokohama 230-0045, Japan
| | - Yuuri Tsuboi
- RIKEN Center for Sustainable Resource Science, 1-7-22, Tsurumi-ku, Yokohama 230-0045, Japan
| | - Daiki Yokoyama
- RIKEN Center for Sustainable Resource Science, 1-7-22, Tsurumi-ku, Yokohama 230-0045, Japan
| | - Jun Kikuchi
- RIKEN Center for Sustainable Resource Science, 1-7-22, Tsurumi-ku, Yokohama 230-0045, Japan; Graduate School of Bioagricultural Sciences, Nagoya University, 1 Furo-cho, Chikusa-ku, Nagoya, Aichi 464-0810, Japan; Graduate School of Medical Life Science, Yokohama City University, 1-7-29 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan.
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Shima H, Murata I, Feifei W, Sakata K, Yokoyama D, Kikuchi J. Identification of salmoniformes aquaculture conditions to increase creatine and anserine levels using multiomics dataset and nonnumerical information. Front Microbiol 2022; 13:991819. [PMID: 36386693 PMCID: PMC9650253 DOI: 10.3389/fmicb.2022.991819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 09/28/2022] [Indexed: 11/30/2022] Open
Abstract
Aquaculture is attracting attention as a sustainable protein source. Salmoniformes, which are generally called salmon, are consumed in large quantities worldwide and are popularly used for aquaculture. In this study, the relationship between muscle metabolites, intestinal microbiota, and nonnumerical information about the ecology of salmoniformes was investigated to improve the efficiency of aquaculture using nuclear magnetic resonance and next-generation sequencing with bioinformatics approach. It was revealed that salmoniformes are rich in anserine and creatine, which are useful for human health care, along with collagen and lipids. The important factors in increasing these useful substances and manage the environment of salmoniformes aquaculture should be noted.
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Affiliation(s)
- Hideaki Shima
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Izumi Murata
- Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
| | - Wei Feifei
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Kenji Sakata
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Daiki Yokoyama
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Jun Kikuchi
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
- Graduate School of Medical Life Science, Yokohama City University, Yokohama, Japan
- Graduate School of Bioagriculuture Sciences, Nagoya University, Nagoya, Japan
- *Correspondence: Jun Kikuchi,
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Tajima T, Mukai M, Uda S, Izumi H, Yokoyama D, Hasegawa S, Makuuchi H. Conversion surgery by hand-assisted laparoscopic surgery following chemotherapy for rectal cancer with H3 liver metastases: a case report. J Gastrointest Oncol 2022; 13:2639-2646. [PMID: 36388681 PMCID: PMC9660080 DOI: 10.21037/jgo-22-245] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 07/20/2022] [Indexed: 07/28/2023] Open
Abstract
BACKGROUND Recent advancements in molecularly targeted chemotherapy for stage IV colorectal cancer have enabled the possibility of complete resection in primary colorectal cancer, which often involves distant liver or lung metastases, by aggressive surgical resection followed by multi-combination chemotherapy. CASE DESCRIPTION A 73-year-old man treated previously for hyperuricemia, hypertension, and a dissecting abdominal aortic aneurysm was referred to us after an incidental finding of multiple liver masses on abdominal ultrasound during follow-up for the aneurysm. A detailed examination by contrast-enhanced computed tomography revealed a ring-enhancing mass larger than 5 cm in diameter in segment 3 of the liver and more than 6 low-density areas with total diameter of 1 to 2 cm in both lobes. A barium enema examination revealed a Borrmann type 2 lesion covering two-thirds of the circumference of the colon, with a 5-cm major axis in the rectosigmoid colon. Biopsy revealed a well-differentiated adenocarcinoma. The patient was diagnosed with stage IV rectal cancer. Because there was no intestinal obstruction, we administered 9 cycles of bevacizumab with capecitabine and oxaliplatin as chemotherapy. Subsequent diagnostic imaging revealed the metastatic lesions in liver segment 3 had reduced to 2 low-density areas with a diameter of 8 mm, and the other hepatic metastases had disappeared; the main tumor had flattened and shrunk. Therefore, we used hand-assisted laparoscopic surgery (HALS) to perform anterior resection of the rectosigmoid colon and partial resection of liver segment 3 as conversion therapy. The patient was discharged 10 days after surgery. The rectal lesion was a well-differentiated adenocarcinoma with a depth of invasion of p-MP and a spread of L0, V0, and pN0. The partial hepatectomy did not indicate viable cancer cells; only necrotic, lysed tissue was observed. Postoperative chemotherapy involved 4 cycles of bevacizumab with capecitabine and oxaliplatin. At more than 42 months postoperatively, no metastasis or recurrence has been observed. CONCLUSIONS This rare case demonstrates that conversion surgery can be a viable option following systemic chemotherapy in patients with advanced colon cancer and H3 liver metastases.
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Affiliation(s)
- Takayuki Tajima
- Department of Surgery, Tokai University Tokyo Hospital, Tokyo, Japan
| | - Masaya Mukai
- Department of Surgery, Tokai University Hachioji Hospital, Tokyo, Japan
| | - Shuji Uda
- Department of Surgery, Tokai University Hachioji Hospital, Tokyo, Japan
| | - Hideki Izumi
- Department of Surgery, Tokai University Hachioji Hospital, Tokyo, Japan
| | - Daiki Yokoyama
- Department of Surgery, Tokai University Hachioji Hospital, Tokyo, Japan
| | - Sayuri Hasegawa
- Department of Surgery, Tokai University Hachioji Hospital, Tokyo, Japan
| | - Hiroyasu Makuuchi
- Department of Surgery, Tokai University Hachioji Hospital, Tokyo, Japan
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Yokoyama D, Suzuki S, Asakura T, Kikuchi J. Microbiome and Metabolome Analyses in Different Closed-Circulation Aquarium Systems and Their Network Visualization. ACS Omega 2022; 7:30399-30404. [PMID: 36061672 PMCID: PMC9434780 DOI: 10.1021/acsomega.2c03701] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 07/21/2022] [Indexed: 05/30/2023]
Abstract
Understanding the causes of microbiome formation and its relationship to environmental conditions is important to properly maintain recirculating aquaculture systems (RASs). Although RAS has been applied to numerous fish types and environmental conditions (e.g., loading intensity), the effects of these environmental conditions (i.e., fish type and loading intensity) on microbiome composition are limitedly known. Therefore, we established three experimental aquarium tanks to explore the effects of fish type, loading intensity, filter pore size, and rearing day on microbiome compositions: (1) a tank for Acanthogobius flavimanus, (2) for Girella punctata, and (3) for G. punctata with higher loading intensity. Multivariate analysis showed that the microbial community composition differed among the tanks, indicating that the fish type and loading intensity significantly affected microbiome formation in rearing water. Some microbes, such as Sediminicola and Glaciecola, were detected at a higher loading intensity, indicating that these microbes might be an indicator of eutrophic conditions in the aquacultural systems. In addition, a partial correlation network revealed a connection between microbes and metabolites in the aquarium tanks. Such a microbe-metabolite network might be a clue to control the microbiome by adjusting the molecule abundance in the aquacultural environment.
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Affiliation(s)
- Daiki Yokoyama
- RIKEN
Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
- Graduate
School of Medical Life Science, Yokohama
City University, 1-7-29
Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Sosei Suzuki
- Graduate
School of Medical Life Science, Yokohama
City University, 1-7-29
Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Taiga Asakura
- RIKEN
Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
- Graduate
School of Medical Life Science, Yokohama
City University, 1-7-29
Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Jun Kikuchi
- RIKEN
Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
- Graduate
School of Medical Life Science, Yokohama
City University, 1-7-29
Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
- Graduate
School of Bioagricultural Sciences, Nagoya
University, 1 Furo-cho, Chikusa-ku, Nagoya, Aichi 464-0810, Japan
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Tajima T, Mukai M, Uda S, Izumi H, Yokoyama D, Hasegawa S, Nomura E. A 73-Year-Old Woman Treated for Rheumatoid Arthritis with Lower Rectal Carcinoma Who Underwent Abdominoperineal Resection, Lateral Regional Lymph Node Resection, and Partial Hepatectomy by Hand-Assisted Laparoscopic Surgery (HALS): A Case Report. Am J Case Rep 2022; 23:e936106. [PMID: 35818321 PMCID: PMC9288853 DOI: 10.12659/ajcr.936106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Patient: Female, 73-year-old
Final Diagnosis: Lateral lymph node metastases • liver metastases • rectum carcinoma
Symptoms: Hematochezia
Medication: —
Clinical Procedure: Hand-assisted laparoscopic surgery
Specialty: Gastroenterology and Hepatology • Rheumatology • Surgery
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Affiliation(s)
- Takayuki Tajima
- Department of Surgery, Tokai university Tokyo Hospital, Tokyo, Japan
| | - Masaya Mukai
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Japan
| | - Shuji Uda
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Japan
| | - Hideki Izumi
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Japan
| | - Daiki Yokoyama
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Japan
| | - Sayuri Hasegawa
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Japan
| | - Eiji Nomura
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Japan
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13
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Kawada K, Okada T, Masui K, Nishizaki D, Kasahara K, Yokoyama D, Obama K. Robotic supralevator total pelvic exenteration with lateral pelvic sidewall dissection for rectal cancer. Tech Coloproctol 2022; 26:761-762. [DOI: 10.1007/s10151-022-02625-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 04/21/2022] [Indexed: 11/28/2022]
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Yokoyama D, Suzuki S, Asakura T, Kikuchi J. Chemometric Analysis of NMR Spectra and Machine Learning to Investigate Membrane Fouling. ACS Omega 2022; 7:12654-12660. [PMID: 35474825 PMCID: PMC9025983 DOI: 10.1021/acsomega.1c06891] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 03/02/2022] [Indexed: 05/26/2023]
Abstract
Efficient membrane filtration requires the understanding of the membrane foulants and the functional properties of different membrane types in water purification. In this study, dead-end filtration of aquaculture system effluents was performed and the membrane foulants were investigated via nuclear magnetic resonance (NMR) spectroscopy. Several machine learning models (Random Forest; RF, Extreme Gradient Boosting; XGBoost, Support Vector Machine; SVM, and Neural Network; NN) were constructed, one to predict the maximum transmembrane pressure, for revealing the chemical compounds causing fouling, and the other to classify the membrane materials based on chemometric analysis of NMR spectra, for determining their effect on the properties of the different membrane types tested. Especially, RF models exhibited high accuracy; the important chemical shifts observed in both the regression and classification models suggested that the proportional patterns of sugars and proteins are key factors in the fouling progress and the classification of membrane types. Therefore, the proposed strategy of chemometric analysis of NMR spectra is suitable for membrane research, which aims at investigating comprehensively the fouling phenomenon and how the foulants and environmental conditions vary according to the filtration systems.
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Affiliation(s)
- Daiki Yokoyama
- RIKEN
Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
- Graduate
School of Medical Life Science, Yokohama
City University, 1-7-29
Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Sosei Suzuki
- Graduate
School of Medical Life Science, Yokohama
City University, 1-7-29
Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Taiga Asakura
- RIKEN
Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
- Graduate
School of Medical Life Science, Yokohama
City University, 1-7-29
Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Jun Kikuchi
- RIKEN
Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
- Graduate
School of Medical Life Science, Yokohama
City University, 1-7-29
Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
- Graduate
School of Bioagricultural Sciences, Nagoya
University, 1 Furo-cho, Chikusa-ku, Nagoya, Aichi 464-0810, Japan
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15
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Koike T, Mukai M, Hiraiwa S, Kishima K, Yokoyama D, Uda S, Hasegawa S, Tajima T, Nomura E, Sugiyama T, Tajiri T. Scatter patterns in lymph node metastases as a novel prognostic indicator in patients with stage III/N2 colorectal cancer. Mol Clin Oncol 2021; 15:239. [PMID: 34650806 PMCID: PMC8506660 DOI: 10.3892/mco.2021.2402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 07/14/2021] [Indexed: 12/03/2022] Open
Abstract
To classify patients with stage III/N2 colorectal cancer into high- and low-risk groups for recurrence, the present study compared clinicopathological features by immunohistochemical staining. The single-center analysis included 53/668 patients (7.9%) with stage III/N2 colorectal cancer who underwent radical resection between January 2006 and December 2014. The present study examined cancer cell distribution in metastatic lymph nodes and classified patients into a group with circumferential localization patterns like a cystic mass (CLP) and a group with scatter patterns like fireworks (SPF). Subsequently, 5-year relapse-free survival (5Y-RFS) and 5-year overall survival (5Y-OS) rates were compared and the histological type (differentiation degree) of the primary adenocarcinoma was included. The CLP group included 16 patients (30.2%) and the SPF group included 37 patients (69.8%). The 5Y-RFS rates in these groups were 75.0 vs. 37.8%, respectively (P=0.021), and the 5Y-OS rates were 81.3 vs. 48.6% (P=0.033). Patient clinicopathological characteristics exhibited no significant differences between groups. The adenocarcinoma was well differentiated in 14 patients (Well; 26.4%) and moderately (Mod; n=37) or poorly (Por; n=2) differentiated in 39 patients (Mod+Por; 73.6%). Patients were further classified into four groups: Well/CLP (n=6), Well/SPF (n=8), Mod+Por/CLP (n=10) and Mod+Por/SPF (n=29). For Well/CLP vs. Well/SPF, the 5Y-RFS rates were 66.7 vs. 25.0%, respectively (P=0.293), and for Mod+Por/CLP vs. Mod+Por/SPF (80.0 vs. 41.4%; P=0.052), the respective values for 5Y-OS were 66.7 vs. 50.0% (P=0.552) and 90.0 vs. 48.3% (P=0.059). Based on the aforementioned results, the CLP group was considered a low-risk group for recurrence with a relatively good prognosis; however, the SPF group was considered a high-risk group for recurrence with a poor prognosis, suggesting a need for more potent multi-combination chemotherapy in these patients from the early postoperative period.
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Affiliation(s)
- Takuya Koike
- Department of Surgery, Tokai University Hachioji Hospital, Tokyo 192-0032, Japan
| | - Masaya Mukai
- Department of Surgery, Tokai University Hachioji Hospital, Tokyo 192-0032, Japan
| | - Shinichiro Hiraiwa
- Department of Pathology, Tokai University Hachioji Hospital, Tokyo 192-0032, Japan
| | - Kyoko Kishima
- Department of Surgery, Tokai University Hachioji Hospital, Tokyo 192-0032, Japan
| | - Daiki Yokoyama
- Department of Surgery, Tokai University Hachioji Hospital, Tokyo 192-0032, Japan
| | - Shuji Uda
- Department of Surgery, Tokai University Hachioji Hospital, Tokyo 192-0032, Japan
| | - Sayuri Hasegawa
- Department of Surgery, Tokai University Hachioji Hospital, Tokyo 192-0032, Japan
| | - Takayuki Tajima
- Department of Surgery, Tokai University Tokyo Hospital, Tokyo 151-0053, Japan
| | - Eiji Nomura
- Department of Surgery, Tokai University Hachioji Hospital, Tokyo 192-0032, Japan
| | - Tomoko Sugiyama
- Department of Pathology, Tokai University Hachioji Hospital, Tokyo 192-0032, Japan
| | - Takuma Tajiri
- Department of Pathology, Tokai University Hachioji Hospital, Tokyo 192-0032, Japan
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16
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Niimi J, Nakamura H, Ueda K, Yokoyama D, Tasaka K, Nemoto F, Moriwaki T, Hatayama K, Naito H. Investigation of Fluoroscopy Time and Radiation Dose by the Number of Cerebral Angiography Operator Experiences. J Neuroendovasc Ther 2021; 16:187-191. [PMID: 37502451 PMCID: PMC10370992 DOI: 10.5797/jnet.oa.2021-0043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 06/22/2021] [Indexed: 07/29/2023]
Abstract
Objective We investigated the fluoroscopy time (FT) and radiation dose by the number of cerebral angiography (CA) operator experiences to clarify the learning curve of CA. Methods The subjects were cases for whom CA was performed at our hospital for 5 years between April 2015 and March 2020. Based on the number of CA operator experiences, they were classified into four groups: 1-50 cases (group A), 51-100 cases (group B), 101-200 cases (group C), and 201 cases and later (group D). The FT and radiation dose were retrospectively investigated. Results Of the 865 consecutive CA cases, 293 cases for follow-up, i.e. after treatment, 54 for arteriovenous shunt diseases, 21 lacking data, and 1 case requiring intervention for thrombosis during CA were excluded. In total, 496 CA cases were investigated. There were 61 cases in group A, 56 cases in group B, 44 cases in group C, and 335 cases in group D, and there was no significant difference in patient background factors among the groups. The median FT and radiation dose (interquartile range) in each group were 20.2 min (14.6) and 374 mGy (185.3) in group A, 14.8 min (12.1) and 366 mGy (167.9) in group B, 10.8 min (6) and 320 mGy (151.7) in group C, and 9.4 min (6.4) and 336 mGy (171) in group D. The FT was significantly shorter in group C than in group A, and significantly shorter in group D than in groups A, B, and C. The radiation dose was significantly lower in groups C and D than in groups A and B. Conclusion This study suggested that CA can be performed alone after experiencing approximately 100 cases as an operator.
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Affiliation(s)
- Jun Niimi
- Department of Neurosurgery, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan
| | - Hajime Nakamura
- Department of Neurosurgery, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan
| | - Kotaro Ueda
- Department of Neurosurgery, Asahi General Hospital, Asahi, Chiba, Japan
| | - Daiki Yokoyama
- Department of Neurosurgery, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan
| | - Kenta Tasaka
- Department of Neurosurgery, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan
| | - Fumio Nemoto
- Department of Neurosurgery, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan
| | - Takuya Moriwaki
- Department of Neurosurgery, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan
| | - Kazumi Hatayama
- Department of Neurosurgery, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan
| | - Hiromichi Naito
- Department of Neurosurgery, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan
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Yokoyama D, Mukai M, Uda S, Kishima K, Koike T, Hasegawa S, Izumi H, Yamamoto S, Tajima T, Nomura E, Makuuchi H. Efficacy of modified bevacizumab-XELOX therapy in Japanese patients with stage IV recurrent or non-resectable colorectal cancer. J Gastrointest Oncol 2021; 12:527-534. [PMID: 34012646 DOI: 10.21037/jgo-20-350] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Background Neoadjuvant chemotherapy (NAC) has been conducted for patients with non-resectable colorectal cancer; however, few reports of a systematic approach to NAC exist. At our hospital, bevacizumab with capecitabine and oxaliplatin (B-mab XELOX) has been used as chemotherapy for Stage IV colorectal cancer since 2014. We aimed to evaluate the efficacy and safety of NAC with a molecular-targeting agent for Stage IV colorectal cancer. Methods A retrospective, single-institute analysis was performed including 27 patients with advanced recurrent cancer following primary tumor resection and 43 patients with non-resectable tumors and remote metastasis. At the time of resection, 17 were receiving chemotherapy. All 70 patients received at least 3 cycles of B-mab XELOX (total: 920 cycles). We determined the 1-year progression-free survival (1Y-PFS), 1-year overall survival (1Y-OS), 3Y-PFS, 3Y-OS, and number of treatment cycles. The objective response rate, clinical benefit rate, and adverse events were assessed. The number of chemotherapy cycles, survival time, and R0 surgery rate were determined for patients who underwent RO conversion surgery. Results The 1Y-PFS was 28.5% [median survival time (MST): 7.4 months], 1Y-OS was 76.6% (MST not reached), 3Y-PFS was 5.5% (MST: 7.4 months), and 3Y-OS was 26.4% (MST: 25.2 months). The mean and median number of cycles of B-mab XELOX was 13.1 and 10.5, respectively. The objective response rate was 28.6%, and the clinical benefit rate was 58.6%. Grade 1 or Grade 2 adverse events occurred in 60 patients (85.7%); however, they all resolved without intervention. A single Grade 4 event (perforation of the primary tumor) occurred in 1 patient (1.4%). RO conversion surgery was performed in 7 patients (10.0%; primary + liver in 2 patients, primary + lung in 1 patient, liver in 3 patients, and primary in 1 patient). These patients received 3 to 10 cycles preoperatively (mean: 7.3; median: 6.5). R0 surgery was achieved in 5 of the 7 patients (71.4%). Postoperative survival ranged from 1 to 26 months (MST: 8 months). Conclusions This modified regimen was safe and effective in Japanese patients, and a high quality of life/quality-adjusted life-year was achieved. To further evaluate PFS and OS, more patients are being investigated.
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Affiliation(s)
- Daiki Yokoyama
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo, Japan
| | - Masaya Mukai
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo, Japan
| | - Shuji Uda
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo, Japan
| | - Kyouko Kishima
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo, Japan
| | - Takuya Koike
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo, Japan
| | - Sayuri Hasegawa
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo, Japan
| | - Hideki Izumi
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo, Japan
| | - Souichirou Yamamoto
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo, Japan
| | - Takayuki Tajima
- Department of Surgery, Tokai University Tokyo Hospital, Shibuya, Tokyo, Japan
| | - Eiji Nomura
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo, Japan
| | - Hiroyasu Makuuchi
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo, Japan
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Koike T, Mukai M, Abe R, Kamei Y, Yokoyama D, Uda S, Higami S, Hasegawa S, Nakamura T, Tajima T, Nomura E, Makuuchi H. Efficacy of hand-assisted laparoscopic surgery (HALS) in older adult patients (≥80 years) with primary colorectal cancer. J Gastrointest Oncol 2021; 13:1073-1080. [DOI: 10.21037/jgo-21-838] [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] [Received: 12/08/2021] [Accepted: 04/13/2022] [Indexed: 11/06/2022] Open
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Uda S, Mukai M, Kishima K, Yokoyama D, Hasegawa S, Koike T, Tajima T, Nomura E, Tomita K, Matsumoto T, Hasebe T, Makuuchi H. Pelvic local recurrence as first relapse predicts prognosis for clinical stage II/III lower rectal cancer: A clinicopathological investigation. Mol Clin Oncol 2020; 14:33. [PMID: 33414914 PMCID: PMC7783710 DOI: 10.3892/mco.2020.2195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 10/23/2020] [Indexed: 11/30/2022] Open
Abstract
The present study investigated the association between the mode of tumor recurrence and prognosis in 123 patients with clinical stage II/III rectal cancer. In the past 10 years, patients received systemic chemotherapy following radical (R0, with no macroscopic residual tumor lesions) resection using total or tumor-specific mesorectal excision. Patients with rectosigmoid cancer and T4 + chemoradiation therapy were excluded from the present study. The 5-year relapse-free survival rate (5Y-RFS), 5-year overall survival rate (5Y-OS), and associations between early post-operative complications, recurrence mode and prognosis, as well as the 5Y-OS of patients with relapsed cancer, were calculated. The overall 5Y-RFS and 5Y-OS were 71.4 and 83.5%, respectively, and the overall recurrence rate was 22.8% (28/123 patients). Among relapses, remote metastases were observed in 17/123 patients (13.8%): The lung in 8 patients (6.5%), the liver in 5 patients (4.1%) and elsewhere in 4 patients (3.3%). A total of 11 patients (8.9%) had pelvic local recurrence as the first relapse, which was located anterior to the sacrum in 7 patients (5.7%), at the anastomosis site in 2 patients (1.6%), and in the inner pelvis in 2 patients (1.6%). Among relapsed patients, the 5Y-OS was 69.3% in those with distant metastases and 27.3% in those with local relapse (P=0.02; no significant differences in patient demographics). The results indicated that advanced rectal cancer and control of pelvic local recurrence are manageable by R0 resection and postoperative chemotherapy. However, for patients whose initial relapse was pelvic local recurrence, the relapsed tumor initiated a new metastatic cascade to organs, such as the lung and liver, and affected prognosis.
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Affiliation(s)
- Shuji Uda
- Department of Digestive Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo 192-0032, Japan
| | - Masaya Mukai
- Department of Digestive Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo 192-0032, Japan
| | - Kyoko Kishima
- Department of Digestive Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo 192-0032, Japan
| | - Daiki Yokoyama
- Department of Digestive Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo 192-0032, Japan
| | - Sayuri Hasegawa
- Department of Digestive Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo 192-0032, Japan
| | - Takuya Koike
- Department of Digestive Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo 192-0032, Japan
| | - Takayuki Tajima
- Department of Surgery, Tokai University Tokyo Hospital, Shibuya, Tokyo 151-0053, Japan
| | - Eiji Nomura
- Department of Digestive Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo 192-0032, Japan
| | - Kousuke Tomita
- Department of Radiology, Tokai University Hachioji Hospital, Hachioji, Tokyo 192-0032, Japan
| | - Tomohiro Matsumoto
- Department of Radiology, Tokai University Hachioji Hospital, Hachioji, Tokyo 192-0032, Japan
| | - Terumitsu Hasebe
- Department of Radiology, Tokai University Hachioji Hospital, Hachioji, Tokyo 192-0032, Japan
| | - Hiroyasu Makuuchi
- Department of Digestive Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo 192-0032, Japan
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Niimi J, Ueda K, Yokoyama D, Tasaka K, Tsuruoka A, Nemoto F, Moriwaki T, Hatayama K, Naito H. Comparison of Treatment Results by Coil Embolization Procedures for Ruptured Cerebral Aneurysms. J Neuroendovasc Ther 2020; 15:228-232. [PMID: 37501687 PMCID: PMC10370926 DOI: 10.5797/jnet.oa.2020-0081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 08/14/2020] [Indexed: 07/29/2023]
Abstract
Objective In coil embolization of ruptured cerebral aneurysms, intraoperative cerebral aneurysm re-rupture and thromboembolism are of concern. A good embolic condition can be expected by adjunctive techniques, but there is an increased risk of complications. We investigated the treatment results by coil embolization procedures for ruptured cerebral aneurysms. Methods Between January 2016 and December 2019, 75 ruptured saccular cerebral aneurysms were treated by coil embolization at our hospital. The background factors, results of aneurysm embolization, intraoperative re-rupture, symptomatic cerebral embolism, and other factors were investigated retrospectively. We compared and examined these factors based on the procedure. Results The mean age was 62.8 and there were 57 female patients (76.0%). The single catheter technique (SCT) was used in 44 cases (58.7%) and the adjunctive technique was used in 31 cases (41.3%). Complete obliteration (CO) was achieved in 24 cases (32.0%), there was a neck remnant (NR) in 23 (30.7%), body filling (BF) was observed in 28 (37.3%), intraoperative re-rupture occurred in 7 (9.3%), and symptomatic cerebral embolism developed in 6 (8.0%), but no postoperative re-rupture was observed. Retreatment was required in only three cases of SCT. On comparison by procedure, the incidence of symptomatic cerebral embolism was significantly lower in SCT group than in the adjunctive technique group (2.3% vs 16.1%, p = 0.04). Conclusion Among the cases of coil embolization for ruptured cerebral aneurysms at our hospital, SCT resulted in a lower incidence of symptomatic cerebral embolism than adjunctive techniques. It is essential to select an appropriate procedure in each case by understanding the characteristics of each procedure.
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Affiliation(s)
- Jun Niimi
- Department of Neurosurgery, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan
| | - Kotaro Ueda
- Department of Neurosurgery, Asahi General Hospital, Asahi, Chiba, Japan
| | - Daiki Yokoyama
- Department of Neurosurgery, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan
| | - Kenta Tasaka
- Department of Neurosurgery, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan
| | - Atsushi Tsuruoka
- Department of Neurology, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan
| | - Fumio Nemoto
- Department of Neurosurgery, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan
| | - Takuya Moriwaki
- Department of Neurosurgery, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan
| | - Kazumi Hatayama
- Department of Neurosurgery, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan
| | - Hiromichi Naito
- Department of Neurosurgery, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan
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Yokoyama D, Horiguchi K, Higuchi Y, Hashiba J. Transnasal endoscopic resection of Epstein-Barr virus-associated cavernous sinus tumour. BMJ Case Rep 2020; 13:13/10/e236381. [PMID: 33127697 DOI: 10.1136/bcr-2020-236381] [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] [Indexed: 11/03/2022] Open
Abstract
Epstein-Barr virus-associated smooth muscle tumour (EBV-SMT) is a rare disease occurring in immunosuppressed patients, such as those with AIDS, post-transplantation immunodeficiency and congenital immunodeficiency. Intracranial EBV-SMT after solid organ transplantation has been reported. However, intracranial lesions after bone marrow transplantation are extremely rare. We report the case of a 47-year-old man with a history of acute myeloid leukaemia and bone marrow transplantation. He had symptoms of trigeminal neuralgia, and MRI revealed a left cavernous sinus tumour. He started taking oral gabapentin, but his symptoms did not improve. We performed transnasal endoscopic surgery. Postoperative MRI showed complete removal of the cavernous sinus lesion. Pathological examination showed spindle-shaped cells positive for smooth muscle markers and EBV-encoded small RNA in situ hybridisation. EBV-SMT was pathologically diagnosed. His symptoms improved after surgery. No tumour recurrence was noted on follow-up MRI after 15 months without adjuvant radiation or chemotherapy.
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Affiliation(s)
- Daiki Yokoyama
- Department of neurosurgery, Chiba University Hospital, Chiba, Japan
| | | | | | - Jun Hashiba
- Department of Diagnostic Radiology and Radiation Oncology, Chiba University Hospital, Chiba, Japan
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22
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Tajima Y, Hayasaka M, Ebihara K, Yokoyama D, Suda I. Predictors of Very Poor Outcome after Mechanical Thrombectomy for Acute Basilar Artery Occlusion. Neurol Med Chir (Tokyo) 2020; 60:507-513. [PMID: 32879183 PMCID: PMC7555156 DOI: 10.2176/nmc.oa.2020-0148] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Prognosis for patients with acute basilar artery occlusion (BAO) remains poor. Successful revascularization is a main predictor of favorable clinical outcomes after mechanical thrombectomy for BAO. However, even if mechanical thrombectomy is successful, some patients have a poor clinical outcome, including vegetative state and mortality. This study investigated the factors that are predictive of extremely poor clinical outcomes despite successful revascularization after mechanical thrombectomy for BAO. We evaluated 35 consecutive patients who presented with acute ischemic stroke due to BAO and who were successfully treated with mechanical thrombectomy. A very poor outcome was defined as a modified Rankin Scale (mRS) score of 5 or 6 at 3 months after treatment. The associations between the clinical, imaging, procedural factors, and poor outcome were evaluated. Using univariate analyses, there were significant differences in the preoperative National Institute of Health Stroke Scale (NIHSS) score (22.0 ± 9.0 vs. 30.5 ± 4.3, p <0.001), and infarct volume in brain stem (0.11 ± 0.19 cc vs. 2.55 ± 1.56 cc, p <0.001) between the control and very poor outcome groups. In receiver operating characteristic (ROC) curve analysis, the area under ROC curve of infarct volume in brain stem was 0.891 to predict very poor outcome. Preoperative infarct volume in brain stem is strong predictor for very poor outcome. The infarct volume in brain stem is useful for deciding treatment indications.
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Affiliation(s)
| | | | | | | | - Izumi Suda
- Department of Neurosurgery, Kimitsu Chuo Hospital
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23
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Izumi H, Yoshii H, Yokoyama D, Uda S, Abe R, Mukai M, Nomura E, Ito H, Mine T, Matsumoto T, Hasebe T, Makuuchi H. Internal biliary drainage for isolated posterior segmental biliary obstruction: a case report. J Med Case Rep 2018; 12:156. [PMID: 29860941 PMCID: PMC5985565 DOI: 10.1186/s13256-018-1699-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 04/27/2018] [Indexed: 11/12/2022] Open
Abstract
Background Biliary system anatomical abnormalities can be preoperatively detected on magnetic resonance imaging; therefore, some presume that the number of bile duct injuries should decline. However, once a bile duct injury occurs, repair may be difficult. There are various ways to repair bile duct injuries, but successful repair may be exceptionally difficult. Case presentation A 72-year-old Japanese man underwent a pancreaticoduodenectomy due to a diagnosis of middle bile duct cancer. We had a complication of an isolated posterior segmental biliary obstruction when pancreaticoduodenectomy was performed. We conducted a drip infusion cholecystocholangiography-computed tomography test to determine the positional relationship between his bile duct and elevated jejunum. To secure the bile duct we punctured the bile duct under computed tomography guidance, and the hepaticojejunal anastomosis site was visualized by inserting an endoscope. We vibrated the bile duct wall by inserting a guide wire through a puncture needle and verified the vibrations with the endoscope. We observed a partially compressed elevated jejunal wall upon guide wire insertion; therefore, we could verify a puncture needle penetration into the elevated jejunum by endoscope on insertion. We also successfully inserted an 8.5-Fr pigtail catheter into the elevated jejunum. We removed all drains after percutaneously inserting an uncovered metallic stent. Our patient’s subsequent clinical course was unremarkable. He visits our institution as an out-patient and has had no stent occlusion even after 6 months. Conclusions When repairing bile duct injuries, it is important to accurately determine the positional relationships between the injured bile duct and the surrounding organs.
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Affiliation(s)
- Hideki Izumi
- Department of Gastrointestinal Surgery, Tokai University Hachioji Hospital, 1838 Ishikawa, Hachioji, Tokyo, 192-0032, Japan.
| | - Hisamichi Yoshii
- Department of Gastrointestinal Surgery, Tokai University Hachioji Hospital, 1838 Ishikawa, Hachioji, Tokyo, 192-0032, Japan
| | - Daiki Yokoyama
- Department of Gastrointestinal Surgery, Tokai University Hachioji Hospital, 1838 Ishikawa, Hachioji, Tokyo, 192-0032, Japan
| | - Shuji Uda
- Department of Gastrointestinal Surgery, Tokai University Hachioji Hospital, 1838 Ishikawa, Hachioji, Tokyo, 192-0032, Japan
| | - Rin Abe
- Department of Gastrointestinal Surgery, Tokai University Hachioji Hospital, 1838 Ishikawa, Hachioji, Tokyo, 192-0032, Japan
| | - Masaya Mukai
- Department of Gastrointestinal Surgery, Tokai University Hachioji Hospital, 1838 Ishikawa, Hachioji, Tokyo, 192-0032, Japan
| | - Eiji Nomura
- Department of Gastrointestinal Surgery, Tokai University Hachioji Hospital, 1838 Ishikawa, Hachioji, Tokyo, 192-0032, Japan
| | - Hiroyuki Ito
- Department of Internal Medicine, Tokai University Hachioji Hospital, 1838 Ishikawa, Hachioji, Tokyo, 192-0032, Japan
| | - Takahiko Mine
- Department of Diagnostic Radiology, Tokai University Hachioji Hospital, 1838 Ishikawa, Hachioji, Tokyo, 192-0032, Japan
| | - Tomohiro Matsumoto
- Department of Diagnostic Radiology, Tokai University Hachioji Hospital, 1838 Ishikawa, Hachioji, Tokyo, 192-0032, Japan
| | - Terumitsu Hasebe
- Department of Diagnostic Radiology, Tokai University Hachioji Hospital, 1838 Ishikawa, Hachioji, Tokyo, 192-0032, Japan
| | - Hiroyasu Makuuchi
- Department of Gastrointestinal Surgery, Tokai University Hachioji Hospital, 1838 Ishikawa, Hachioji, Tokyo, 192-0032, Japan
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Kayano H, Nomura E, Kuramoto T, Yatabe K, Yoshii H, Yokoyama D, Machida T, Uda S, Koike T, Izumi H, Hasegawa S, Mukai M, Makuuchi H. Two Cases of Laparoscopic Diagnosis and Treatment of Intersigmoid Hernia. Tokai J Exp Clin Med 2017; 42:109-114. [PMID: 28681372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 05/24/2017] [Indexed: 09/28/2022]
Abstract
We present two cases of intestinal obstruction due to intersigmoid hernia that were diagnosed and treated laparoscopically. The first case was a 42-year-old woman with no surgical history. She was treated conservatively with the insertion of an ileus tube. Although the intestinal obstruction improved temporarily, since it subsequently worsened, laparoscopic surgery was performed, which revealed incarceration of the ileum in the intersigmoid fossa. Although there were no signs of necrosis after intestinal release, partial resection of the small bowel was performed before the hernial orifice was closed due to the evidence of serous damage. The second case was a 53-year-old man with no surgical history. An ileus tube was inserted for intestinal decompression, following which laparoscopic surgery was performed. Operative findings revealed incarceration of the ileum in the intersigmoid fossa, and, since there were no signs of necrosis after intestinal release, the hernial orifice was closed without performing intestinal resection. This condition is a good indication for laparoscopic surgery, given that intestinal necrosis is frequently absent and the operation can usually be completed simply by release of the incarcerated intestine and closure of the hernia orifice. Intersigmoid hernia should be suspected in cases of intestinal obstruction with no surgical history.
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Affiliation(s)
- Hajime Kayano
- Department of General and Gastroenterological Surgery, Tokai University Hachioji Hospital, 1838 Ishikawa-machi, Hachioji, Tokyo 192-0032, Japan.
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25
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Tajima T, Mukai M, Yokoyama D, Higami S, Uda S, Hasegawa S, Nomura E, Sadahiro S, Yasuda S, Makuuchi H. Comparison of hand-assisted laparoscopic surgery (HALS) and conventional laparotomy in patients with colorectal cancer: Final results from a single center. Oncol Lett 2017; 13:4953-4958. [PMID: 28588735 DOI: 10.3892/ol.2017.6035] [Citation(s) in RCA: 7] [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] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Accepted: 03/31/2017] [Indexed: 01/31/2023] Open
Abstract
In recent years, the use of laparoscopic surgery has been expanded to include radical curative resection. In a previous study, 212 patients with primary colorectal cancer (stages I-III) underwent radical curative resection by hand-assisted laparoscopic surgery (HALS) (n=98) or conventional laparotomy (CL) (n=114) and were compared with respect to 3-year relapse-free survival (3Y-RFS) and 3-year overall survival (3Y-OS). The study included 210/212 patients who were followed up to 5 years, including 96 patients who underwent HALS and 114 treated with CL. The two groups were matched for stage, clinical background, and postoperative management. Patient characteristics were compared and the 5Y-RFS and 5Y-OS were determined. The 5-year follow-up rate was 97.6%. In stage I-III patients, 5Y-RFS and 5Y-OS showed no significant differences between HALS and CL. The patients with stage I disease accounted for 41.7% (40/96) of the patients undergoing HALS, while stage I patients only accounted for 23.7% (27/114) of the patients undergoing CL, and the difference was significant (P=0.005). Stage II patients undergoing CL were older than those treated with HALS (P=0.017). However, there were no differences in the characteristics of stage III patients undergoing HALS or CL. In conclusion, HALS achieved a similar survival to CL in patients with stage I to III colorectal cancer. Compared with CL, HALS was performed more safely and achieved superior cosmetic results.
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Affiliation(s)
- Takayuki Tajima
- Department of Surgery, Tokai University School of Medicine, Isehara, Kanagawa 259-1193, Japan
| | - Masaya Mukai
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo 192-0032, Japan
| | - Daiki Yokoyama
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo 192-0032, Japan
| | - Shigeo Higami
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo 192-0032, Japan
| | - Shuji Uda
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo 192-0032, Japan
| | - Sayuri Hasegawa
- Department of Surgery, Tokai University School of Medicine, Isehara, Kanagawa 259-1193, Japan
| | - Eiji Nomura
- Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo 192-0032, Japan
| | - Sotaro Sadahiro
- Department of Surgery, Tokai University School of Medicine, Isehara, Kanagawa 259-1193, Japan
| | - Seiei Yasuda
- Department of Surgery, Tokai University School of Medicine, Isehara, Kanagawa 259-1193, Japan
| | - Hiroyasu Makuuchi
- Department of Surgery, Tokai University School of Medicine, Isehara, Kanagawa 259-1193, Japan.,Department of Surgery, Tokai University Hachioji Hospital, Hachioji, Tokyo 192-0032, Japan
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Mori T, Yokoyama D, Kitayama K. Contrasting effects of exogenous phosphorus application on N2O emissions from two tropical forest soils with contrasting phosphorus availability. Springerplus 2016; 5:1237. [PMID: 27536520 PMCID: PMC4971005 DOI: 10.1186/s40064-016-2587-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 06/15/2016] [Indexed: 11/21/2022]
Abstract
An incubation study was conducted to test the effects of phosphorus (P) addition on nitrous oxide (N2O) emissions from the soils taken from two tropical rain forests established on different parent materials [meta-sedimentary (MS) and ultrabasic (UB) rock] on Mt. Kinabalu, Borneo. Earlier studies suggest that the forest on UB soils is more strongly limited by P than that on MS soils is. In MS soils, P addition significantly reduced N2O emissions. Since neither ammonium (NH4+) nor nitrate (NO3−) contents were reduced by P addition, we assumed that the decrease in N2O emissions were not due to the previously-reported mechanism: P addition stimulated microbial nitrogen (N) immobilization and collateral inorganic N consumption, reducing resources for producing N2O. Since P addition enhanced the ratios of microbial biomass to CO2 and N2O emissions (indicators of nitrifying and/or denitrifying respiratory efficiency), it was suggested that the N required for the respiration of nitrifying and/or denitrifying bacteria was reduced, leading to reduced N2O emissions. On the other hand, P addition had no effects on N2O emissions in UB soils. The respiratory efficiency did not change significantly by P addition, possibly because the microbial community in the highly-P-depleted UB soils shifted by P addition, with which the enhancement of respiration efficiency did not co-vary. We concluded that (1) P addition may control N2O emissions through increasing respiratory efficiency, and (2) the effects may be different depending on the differences in P availability.
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Affiliation(s)
- Taiki Mori
- Forest Ecology Laboratory, Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto, 606-8502 Japan ; Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650 Guangdong China
| | - Daiki Yokoyama
- Forest Ecology Laboratory, Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto, 606-8502 Japan
| | - Kanehiro Kitayama
- Forest Ecology Laboratory, Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto, 606-8502 Japan
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Nakamura T, Chino O, Yokoyama D, Tanaka Y, Hanashi T, Kikuchi M, Ogawa T, Tajima T, Sadahiro S, Kondoh Y, Makuuchi H. A Surgical Case of Primary Splenic Malignant Lymphoma Complicating Chronic Hepatitis C. Tokai J Exp Clin Med 2016; 41:30-34. [PMID: 27050893] [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: 01/15/2016] [Accepted: 02/01/2016] [Indexed: 06/05/2023]
Abstract
The patient was a 70-year-old man. Hepatic dysfunction was found in 1988 and chronic hepatitis C was diagnosed in 1993. He received interferon-alpha therapy, but did not respond to it. Thereafter, he was treated with ursodeoxycholic acid. In September 2010, abdominal ultrasound showed a hypoechoic tumor (29 × 25 mm) in the lower pole of the spleen, and this lesion became larger one year later (74 × 66 × 71 mm). Abdominal CT revealed a hypovascular heterogeneous tumor with smooth margins on both dynamic and delayed phase scans. MRI displayed a tumor with a low signal intensity on T2WI. Abdominal angiography confirmed that the lesion was hypovascular. 67Ga scintigraphy showed abnormal accumulation confined to the spleen. Bone marrow biopsy did not reveal any abnormalities. Based on these findings, primary splenic malignant lymphoma (PSML) complicating chronic hepatitis C was diagnosed and splenectomy was performed. A tumor (78 × 60 mm) was found in the lower pole of the resected spleen and pathologic examination revealed diffuse large B cell lymphoma (DLBCL). Four courses of postoperative R-CHOP therapy were performed. At present, he continues to use ursodeoxycholic acid with no recurrence after four years. In conclusion, we report our experience of a patient who had PSML complicating chronic hepatitis C with discussion of the literature.
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MESH Headings
- Aged
- Antibodies, Monoclonal, Murine-Derived
- Antineoplastic Combined Chemotherapy Protocols/therapeutic use
- Cyclophosphamide
- Diffusion Magnetic Resonance Imaging
- Doxorubicin
- Hepatitis C, Chronic/complications
- Hepatitis C, Chronic/drug therapy
- Humans
- Lymphoma, Large B-Cell, Diffuse/diagnostic imaging
- Lymphoma, Large B-Cell, Diffuse/etiology
- Lymphoma, Large B-Cell, Diffuse/pathology
- Lymphoma, Large B-Cell, Diffuse/surgery
- Male
- Prednisone
- Radionuclide Imaging
- Rituximab
- Splenectomy
- Splenic Neoplasms/diagnostic imaging
- Splenic Neoplasms/etiology
- Splenic Neoplasms/pathology
- Splenic Neoplasms/surgery
- Tomography, X-Ray Computed
- Treatment Outcome
- Ursodeoxycholic Acid/therapeutic use
- Vincristine
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Affiliation(s)
- Tomoki Nakamura
- Department of Surgery, Tokai University School of Medicine Tokyo Hospital, 1-2-5 Yoyogi, Shibuya-ku, Tokyo 151-0053, Japan.
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Nakamura T, Chino O, Tajima T, Tanaka Y, Yokoyama D, Hanashi T, Sadahiro S, Makuuchi H. Ileal Intussusception Due to Metastasis from Squamous Cell Carcinoma of the Lung Resected 12 Years Previously. Tokai J Exp Clin Med 2015; 40:137-140. [PMID: 26662663] [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: 04/02/2015] [Accepted: 08/20/2015] [Indexed: 06/05/2023]
Abstract
An 88-year-old woman, with a history of resection of stage IIA lung cancer in 1998, was referred to our hospital in August 2010 complaining of upper abdominal pain, vomiting, and dark brown stools. After endoscopic examination, she was admitted with a diagnosis of Mallory-Weiss syndrome. Vomiting occurred when food intake was resumed after fasting. Intestinal obstruction was suspected on abdominal radiography, and complete small bowel obstruction was confirmed by contrast-enhanced imaging after placement of an ileus tube. A small intestinal tumor with intussusception was detected by computed tomography. At laparotomy, there was no ascites. Intussusception was found due to an ileal tumor located approximately 50 cm from the ileocecal valve, and we performed partial small bowel resection. The resected small intestine contained a submucosal tumor approximately 40 mm in diameter that had penetrated the bowel wall to reach the serosa. Pathological examination revealed a submucosal tumor that showed poor continuity with the surrounding mucosa, while the histology was squamous cell carcinoma. Immunohistochemistry showed that the tumor was CK7 positive, CK20 negative, TTF-1 negative, and CK10 positive. Based on these findings, we made a diagnosis of small intestinal metastasis at 12 years after radical resection of squamous cell carcinoma of the lung.
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Affiliation(s)
- Tomoki Nakamura
- Department of Surgery, Tokai University Tokyo Hospital, 1-2-5 Yoyogi, Shibuya-ku, Tokyo 151-0053, Japan.
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Chino O, Makuuchi H, Kondo Y, Nakamura T, Tanaka Y, Hanashi T, Yokoyama D, Kajiwara H. Esophageal intramural pseudodiverticulosis treated by endoscopic balloon dilatation. Tokai J Exp Clin Med 2014; 39:137-140. [PMID: 25248429] [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: 06/18/2014] [Accepted: 06/27/2014] [Indexed: 06/03/2023]
Abstract
We here report a rare case of esophageal intramural pseudodiverticulosis with dysphagia. A 65-year-old man was suffering from intermittent dysphagia for 10 years, which had been worsening in recent months. Endoscopic examination revealed multiple, small, saccular diverticula and mild annular stricture with numerous white plaques from the cervical esophagus to the middle thoracic esophagus. Barium esophagography revealed stricture of the upper thoracic esophagus with multiple tiny flask-shaped outpouchings. Based on this characteristic appearance, we diagnosed esophageal intramural pseudodiverticulosis and inflammation of a narrow segment of the esophagus. Biopsy specimen showed acute and chronic esophagitis with Candida infection. Dysphagia persisted despite resolution of candidiasis, for which we successfully performed endoscopic balloon dilatation of the stricture. After the treatment, the patient has been well and has not been suffering from dysphagia.
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Affiliation(s)
- Osamu Chino
- Department of Surgery, Tokai University School of Medicine, Tokyo Hospital, 1-2-5, Yoyogi, Shibuya-ku, Tokyo 151-0053, Japan.
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Nishitai R, Manaka D, Hamasu S, Konishi S, Sakamoto K, Yoshino K, Kanto S, Yokoyama D, Uehara M. 435. Unfavorable Effect of Preoperative Chemotherapy for Initially Resectable Colorectal Liver Metastases. Eur J Surg Oncol 2012. [DOI: 10.1016/j.ejso.2012.06.394] [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: 10/27/2022] Open
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Matsuda K, Qiu Y, Furuse T, Kawamura Y, Yokoyama D, Kato A, Taniyama H. Bronchogenic and Esophageal Cyst With Laryngeal Malformations in a Thoroughbred Foal. Vet Pathol 2009; 47:351-3. [DOI: 10.1177/0300985809359319] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This report documents an unusual case of congenital foregut cyst with dysphagia and stridor in a Thoroughbred foal. Histologically, the bilocular cyst, near the junction of larynx and trachea, had an epithelial lining of bronchogenic and esophageal origin. Concomitant malformation of the laryngeal muscles and cartilage resulted in a combination of anomalies that have not been reported in the human or veterinary literature.
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Affiliation(s)
- K. Matsuda
- Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan
| | - Y. Qiu
- Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan
| | - T. Furuse
- Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan
| | - Y. Kawamura
- Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan
| | | | | | - H. Taniyama
- Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan
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Machida S, Tamada K, Oikawa T, Yokoyama D, Kaneko M, Kurosaka D. Sensitivity and specificity of photopic negative response of focal electoretinogram to detect glaucomatous eyes. Br J Ophthalmol 2009; 94:202-8. [PMID: 19692386 DOI: 10.1136/bjo.2009.161166] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
AIMS To determine the sensitivity and specificity of the photopic negative response (PhNR) of the focal electroretinograms (ERG; focal PhNR) to detect glaucomatous eyes with different degrees of visual field defects. METHODS One-hundred and fourteen eyes of 114 patients with open angle glaucoma and 42 eyes of 42 normal controls were studied. The focal ERGs were elicited by a 15 degrees stimulus spot centred on the macula, and on the supero-temporal and on the infero-temporal areas of the macula. The receiver operating characteristic curves were determined to obtain optimal cut-off values. Eyes were classified as being glaucomatous when their focal PhNRs were less than the cut-off values in either retinal area (combined criterion). RESULTS The focal PhNR amplitudes were significantly reduced with an advance in the stage of glaucoma. In early glaucoma, the sensitivities of the PhNR measured for each retinal area ranged from 58.1% to 80.7%. The sensitivities were significantly increased to 90.6% and 96.9% for the focal PhNR amplitude and the focal PhNR/b-wave amplitude ratio, respectively, when the combined criterion was employed. The specificity was >90%. CONCLUSIONS Focal PhNRs have diagnostic ability in detecting early glaucoma with high sensitivity and specificity, especially when the combined criterion is used.
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Affiliation(s)
- S Machida
- Department of Ophthalmology, Iwate Medical University School of Medicine, 19-1 Uchimaru, Morioka, Iwate 020-8505, Japan.
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Sogo Y, Ito A, Yokoyama D, Yamazaki A, LeGeros RZ. Synthesis of fluoride-releasing carbonate apatites for bone substitutes. J Mater Sci Mater Med 2007; 18:1001-7. [PMID: 17242999 DOI: 10.1007/s10856-006-0092-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2005] [Accepted: 02/15/2006] [Indexed: 05/13/2023]
Abstract
Fluoride (F-)-substituted B-type carbonate hydroxyapatite (CHAP) powders were prepared for application as bone substitute materials having the ability to enhance bone formation and to suppress bone resorption due to the therapeutic effect of F-. F- was adsorbed on CHAP in a sodium fluoride solution followed by heating at 700 degrees C in carbon dioxide flow to substitute F- for the hydroxyl ion in the CHAP structure. The F- contents in the F-substituted CHAP powders were 16-22 times greater than that in normal adult human bones. The carbonate ion contents in the F-substituted CHAP powders corresponded to or were higher than that in normal adult human bones. F-substituted CHAP powder with CO3(2-) and F- contents of 11.03 and 0.66 wt%, respectively, slowly released F- in a physiological salt solution to a sufficiently high F- level. The F- concentration slowly increased and reached 67.20 +/- 4.81 microg l(-1), which was 1.5-9.3 times higher than that in the body fluid of normal adult humans, near the therapeutic window of F-, and far lower than the estimated toxic level. Therefore, the F-substituted CHAP can promote bone formation. The present F-substituted CHAP has the advantage of slow F- release over sodium fluoride and sodium monofluorophosphate which are highly soluble salts and cannot be sintered into a ceramic body.
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Affiliation(s)
- Yu Sogo
- Institute for Human Science and Biomedical Engineering, National Institute of Advanced Industrial Science and Technology, Central 6, 1-1-1 Higashi, Tsukuba-shi, Ibaraki 305-8566, Japan.
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Yokoyama D, Namiki K, Fukasawa H, Miyazaki J, Nomura K, Yamada Y. Mössbauer study of films produced by laser deposition of iron oxides. J Radioanal Nucl Chem 2007. [DOI: 10.1007/s10967-007-0637-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Umehara S, Kishimoto T, Ogawa I, Hazama R, Yoshida S, Matsuoka K, Yokoyama D, Mukaida K, Ichihara K, Hirano Y, Yanagisawa A. CANDLES for double beta decay of48Ca. ACTA ACUST UNITED AC 2006. [DOI: 10.1088/1742-6596/39/1/093] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Yoshida S, Kishimoto T, Ogawa I, Hazama R, Umehara S, Matsuoka K, Yokoyama D, Mukaida K, Ichihara K, Tatewaki Y. CANDLES project for double beta decay of 48Ca. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.nuclphysbps.2004.11.051] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Yokoyama D, Saito-Ito A, Asao N, Tanabe K, Yamamoto M, Matsumura T. Modulation of the growth of Plasmodium falciparum in vitro by protein serine/threonine phosphatase inhibitors. Biochem Biophys Res Commun 1998; 247:18-23. [PMID: 9636646 DOI: 10.1006/bbrc.1998.8730] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.4] [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: 11/22/2022]
Abstract
To elucidate the physiological roles of the protein serine/threonine phosphatases of P. falciparum, first we identified and characterized phosphatase activities of Plasmodium falciparum enzymologically and pharmacologically. We have demonstrated that P. falciparum possesses phosphatase-1-like activities predominantly over phosphatase-2A-like activities, while erythrocytes possess mainly phosphatase-2A-like activities. Then, we examined the effects of okadaic acid and calyculin A, potent inhibitors of protein phosphatase 1 and 2A, on the growth of P. falciparum in vitro. Both of the drugs inhibited parasite growth dose dependently. The manner of growth inhibition by calyculin A and okadaic acid suggested that these drugs inhibit parasite growth mainly by inhibiting parasite phosphatase-1-like activities. Both drugs were shown to inhibit the growth of three different developmental stages of parasites--ring forms, trophozoites, and schizonts--and inhibit trophozoites the most. This is the first report on P. falciparum protein serine/threonine phosphatase activities, which are essential to regulate the erythrocytic stage of parasite growth.
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Affiliation(s)
- D Yokoyama
- Department of Medical Zoology, Kobe University School of Medicine, Japan
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