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Nonoyama K, Matsuo Y, Sugita S, Eguchi Y, Denda Y, Murase H, Kato T, Imafuji H, Saito K, Morimoto M, Ogawa R, Takahashi H, Mitsui A, Kimura M, Takiguchi S. Expression of ZKSCAN3 protein suppresses proliferation, migration, and invasion of pancreatic cancer through autophagy. Cancer Sci 2024. [PMID: 38671550 DOI: 10.1111/cas.16173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 03/04/2024] [Accepted: 03/24/2024] [Indexed: 04/28/2024] Open
Abstract
Elevated autophagy activity enhances the malignancy of pancreatic cancer (PaCa), and autophagy is recognized as a novel therapeutic target. Zinc finger protein with KRAB and SCAN domains 3 (ZKSCAN3) is a transcription factor that suppresses autophagy, but its association with PaCa is unknown. We analyzed the function of ZKSCAN3 in PaCa and investigated whether autophagy regulation through ZKSCAN3 could become a new therapeutic target for PaCa. Using reverse transcription-quantitative polymerase chain reaction and western blotting, we observed that ZKSCAN3 expression was upregulated in several PaCa cell lines compared with normal pancreatic ductal epithelial cells. Additionally, comparing ZKSCAN3 expression with the prognosis of PaCa patients using web databases, we found that higher ZKSCAN3 expression in PaCa was associated with extended overall survival. Knocking down ZKSCAN3 promoted the proliferation of PaCa cells. Moreover, following ZKSCAN3 knockdown, PaCa cells exhibited significantly enhanced migratory and invasive properties. Conversely, overexpression of ZKSCAN3 significantly suppressed the proliferation, migration and invasion of PaCa cells. Additionally, the knockdown of ZKSCAN3 increased the expression of LC3-II, a marker of autophagy, whereas ZKSCAN3 overexpression decreased LC3-II expression. In a xenograft mouse model, tumors formed by MIA PaCa-2 cells in which ZKSCAN3 was knocked down significantly increased in size compared with the control group. In conclusion, ZKSCAN3 expression was upregulated in several pancreatic cancer cells. Additionally, it was revealed that ZKSCAN3 is negatively correlated with the malignancy of PaCa through autophagy. These results suggest that autophagy regulation via ZKSCAN3 may be a new therapeutic target for PaCa.
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Affiliation(s)
- Keisuke Nonoyama
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Yoichi Matsuo
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Saburo Sugita
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Yuki Eguchi
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Yuki Denda
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Hiromichi Murase
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Tomokatsu Kato
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Hiroyuki Imafuji
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Kenta Saito
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Mamoru Morimoto
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Ryo Ogawa
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Hiroki Takahashi
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Akira Mitsui
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Masahiro Kimura
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Shuji Takiguchi
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
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Denda Y, Matsuo Y, Sugita S, Eguchi Y, Nonoyama K, Murase H, Kato T, Imafuji H, Saito K, Morimoto M, Ogawa R, Takahashi H, Mitsui A, Kimura M, Takiguchi S. The Natural Product Parthenolide Inhibits Both Angiogenesis and Invasiveness and Improves Gemcitabine Resistance by Suppressing Nuclear Factor κB Activation in Pancreatic Cancer Cell Lines. Nutrients 2024; 16:705. [PMID: 38474833 DOI: 10.3390/nu16050705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 02/18/2024] [Accepted: 02/28/2024] [Indexed: 03/14/2024] Open
Abstract
We previously established pancreatic cancer (PaCa) cell lines resistant to gemcitabine and found that the activity of nuclear factor κB (NF-κB) was enhanced upon the acquisition of gemcitabine resistance. Parthenolide, the main active ingredient in feverfew, has been reported to exhibit antitumor activity by suppressing the NF-κB signaling pathway in several types of cancers. However, the antitumor effect of parthenolide on gemcitabine-resistant PaCa has not been elucidated. Here, we confirmed that parthenolide significantly inhibits the proliferation of both gemcitabine-resistant and normal PaCa cells at concentrations of 10 µM and higher, and that the NF-κB activity is significantly inhibited, even by 1 µM parthenolide. In Matrigel invasion assays and angiogenesis assays, the invasive and angiogenic potentials were higher in gemcitabine-resistant than normal PaCa cells and were inhibited by a low concentration of parthenolide. Furthermore, Western blotting showed suppressed MRP1 expression in gemcitabine-resistant PaCa treated with a low parthenolide concentration. In a colony formation assay, the addition of 1 µM parthenolide improved the sensitivity of gemcitabine-resistant PaCa cell lines to gemcitabine. These results suggest that parthenolide may be used as a novel therapeutic agent for the treatment of gemcitabine-resistant PaCa.
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Affiliation(s)
- Yuki Denda
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, 1-Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Yoichi Matsuo
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, 1-Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Saburo Sugita
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, 1-Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Yuki Eguchi
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, 1-Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Keisuke Nonoyama
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, 1-Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Hiromichi Murase
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, 1-Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Tomokatsu Kato
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, 1-Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Hiroyuki Imafuji
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, 1-Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Kenta Saito
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, 1-Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Mamoru Morimoto
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, 1-Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Ryo Ogawa
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, 1-Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Hiroki Takahashi
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, 1-Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Akira Mitsui
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, 1-Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Masahiro Kimura
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, 1-Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Shuji Takiguchi
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, 1-Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
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Quan N, Eguchi Y, Geiler-Samerotte K. Intra- FCY1: a novel system to identify mutations that cause protein misfolding. Front Genet 2023; 14:1198203. [PMID: 37745845 PMCID: PMC10512024 DOI: 10.3389/fgene.2023.1198203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 08/22/2023] [Indexed: 09/26/2023] Open
Abstract
Protein misfolding is a common intracellular occurrence. Most mutations to coding sequences increase the propensity of the encoded protein to misfold. These misfolded molecules can have devastating effects on cells. Despite the importance of protein misfolding in human disease and protein evolution, there are fundamental questions that remain unanswered, such as, which mutations cause the most misfolding? These questions are difficult to answer partially because we lack high-throughput methods to compare the destabilizing effects of different mutations. Commonly used systems to assess the stability of mutant proteins in vivo often rely upon essential proteins as sensors, but misfolded proteins can disrupt the function of the essential protein enough to kill the cell. This makes it difficult to identify and compare mutations that cause protein misfolding using these systems. Here, we present a novel in vivo system named Intra-FCY1 that we use to identify mutations that cause misfolding of a model protein [yellow fluorescent protein (YFP)] in Saccharomyces cerevisiae. The Intra-FCY1 system utilizes two complementary fragments of the yeast cytosine deaminase Fcy1, a toxic protein, into which YFP is inserted. When YFP folds, the Fcy1 fragments associate together to reconstitute their function, conferring toxicity in media containing 5-fluorocytosine and hindering growth. But mutations that make YFP misfold abrogate Fcy1 toxicity, thus strains possessing misfolded YFP variants rise to high frequency in growth competition experiments. This makes such strains easier to study. The Intra-FCY1 system cancels localization of the protein of interest, thus can be applied to study the relative stability of mutant versions of diverse cellular proteins. Here, we confirm this method can identify novel mutations that cause misfolding, highlighting the potential for Intra-FCY1 to illuminate the relationship between protein sequence and stability.
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Affiliation(s)
- N. Quan
- Biodesign Center for Mechanisms of Evolution, Arizona State University, Tempe, AZ, United States
- School of Life Sciences, Arizona State University, Tempe, AZ, United States
| | - Y. Eguchi
- Biodesign Center for Mechanisms of Evolution, Arizona State University, Tempe, AZ, United States
| | - K. Geiler-Samerotte
- Biodesign Center for Mechanisms of Evolution, Arizona State University, Tempe, AZ, United States
- School of Life Sciences, Arizona State University, Tempe, AZ, United States
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Matsumura C, Koyama N, Okuno K, Nakamura N, Sako M, Kurosawa H, Nomura T, Eguchi Y, Ohba K, Yano Y. Survival Prediction of Patients Who Were Terminally Ill Using the EORTC QLQ-C15-PAL Scores and Laboratory Test Values. Palliat Med Rep 2023; 4:202-207. [PMID: 37637762 PMCID: PMC10457602 DOI: 10.1089/pmr.2023.0015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/10/2023] [Indexed: 08/29/2023] Open
Abstract
Background Prognostics for patients with cancer is especially important for the supportive care of those who are terminally ill. We previously found that symptom scores as patient-reported outcomes (PROs)-such as dyspnea and fatigue scores-some biochemical parameters, the palliative performance scale (PPS) scores, and symptom clusters were useful prognostic factors; however, the predictability of a prognosis based on these factors remains unclear. Objective To identify appropriate three-week survival predictive factor(s), in terms of performance, in patients who were terminally ill. Design We collected symptom scores as PROs using the Japanese version of the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 15 Palliative Care (EORTC QLQ-C15-PAL). Setting/Subjects We used data from terminally ill patients with cancer who were hospitalized at the palliative care unit of the Higashisumiyoshi-Morimoto Hospital (Osaka, Japan) from June 2018 to December 2019 (n = 130), as well as additional data obtained from the same clinical study from January to March 2020 (n = 31). Measurements To evaluate predictive performance, indices such as sensitivity, specificity, positive predictive value, negative predictive value, and overall accuracy were calculated. Results We found that the presence of a symptom cluster showed high sensitivity but low specificity and that a higher PPS value (>30) showed high specificity but low sensitivity, suggesting that these factors could provide relevant information for survival prognosis (less than or equal to three weeks). Conclusion Symptom clusters obtained from patients is important for effective supportive care of those who are terminally ill.
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Affiliation(s)
- Chikako Matsumura
- Education and Research Center for Clinical Pharmacy, Kyoto Pharmaceutical University, Kyoto, Japan
| | - Nanako Koyama
- Education and Research Center for Clinical Pharmacy, Kyoto Pharmaceutical University, Kyoto, Japan
- Department of Pharmacy, Yodogawa Christian Hospital, Osaka, Japan
| | - Kaho Okuno
- Education and Research Center for Clinical Pharmacy, Kyoto Pharmaceutical University, Kyoto, Japan
| | - Nobuhiko Nakamura
- Education and Research Center for Clinical Pharmacy, Kyoto Pharmaceutical University, Kyoto, Japan
| | - Morito Sako
- Department of Pharmacy, Tachibana Medical Corporation Higashisumiyoshi-Morimoto Hospital, Osaka, Japan
| | - Hideo Kurosawa
- Department of Pharmacy, Tachibana Medical Corporation Higashisumiyoshi-Morimoto Hospital, Osaka, Japan
| | - Takehisa Nomura
- Department of Pharmacy, Tachibana Medical Corporation Higashisumiyoshi-Morimoto Hospital, Osaka, Japan
| | - Yuki Eguchi
- Palliative Care Unit, Tachibana Medical Corporation Higashisumiyoshi-Morimoto Hospital, Osaka, Japan
| | - Kazuki Ohba
- Department of Palliative Care, Tachibana Medical Corporation Higashisumiyoshi-Morimoto Hospital, Osaka, Japan
| | - Yoshitaka Yano
- Education and Research Center for Clinical Pharmacy, Kyoto Pharmaceutical University, Kyoto, Japan
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Miyai H, Fujita K, Saito M, Fujii Y, Saito T, Kato J, Sawai M, Eguchi Y, Hirokawa T, Yamamoto M, Kobayashi K, Takiguchi S. Solo surgery in robot-assisted gastrectomy versus laparoscopic gastrectomy for gastric cancer: a propensity score-matched analysis. Surg Endosc 2023:10.1007/s00464-023-10113-x. [PMID: 37308761 DOI: 10.1007/s00464-023-10113-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 05/03/2023] [Indexed: 06/14/2023]
Abstract
BACKGROUND Robot-assisted gastrectomy (RG) for gastric cancer is still not well standardized. This study aimed to explore the feasibility and effectiveness of solo surgery in robot-assisted gastrectomy (SRG) for gastric cancer compared to laparoscopic gastrectomy (LG). METHODS This was a single-center retrospective comparative study between SRG and conventional LG. Between April 2015 and December 2022, 510 patients underwent gastrectomy, and data from a prospectively collected database were analyzed. We identified 372 patients who underwent LG (n = 267) and SRG (n = 105) and the remaining 138 patients were excluded because of remnant gastric cancer, esophagogastric junction cancer, open gastrectomy, concurrent surgery for concomitant malignancies, RG before starting SRG, or cases in which the author was unable to perform or supervise gastrectomy. Propensity score matching was performed at a ratio of 1:1 to reduce bias from confounding patient-related variables, and short-term outcomes were compared between the groups. RESULTS After propensity score matching, 90 pairs of patients who underwent LG and SRG were selected. In the propensity-matched cohort, the operation time was significantly shorter in the SRG group than that in the LG group (SRG = 305.7 ± 74.0 min vs. LG = 340.3 ± 91.65 min, p < 0.0058), less estimated blood loss was observed in the SRG group than that in the LG group (SRG = 25.6 ± 50.6 mL vs. LG = 76.1 ± 104.2 mL, p < 0.0001) and postoperative hospital stay was shorter in the SRG group than that in the LG group (SRG = 7.1 ± 0.8 days vs. LG = 9.1 ± 7.7 days, p = 0.015). CONCLUSION We found that SRG for gastric cancer was technically feasible and effective with favorable short-term outcomes, including shorter operative time, less estimated blood loss, shorter hospital stays, and lower postoperative morbidity than those in LG.
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Affiliation(s)
- Hirotaka Miyai
- Department of Gastroenterological Surgery, Kariya Toyota General Hospital, Kariya, Aichi, 448-8505, Japan.
| | - Kohei Fujita
- Department of Gastroenterological Surgery, Kariya Toyota General Hospital, Kariya, Aichi, 448-8505, Japan
| | - Masaki Saito
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, 467-8601, Japan
| | - Yoshiaki Fujii
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, 467-8601, Japan
| | - Tsuyoshi Saito
- Department of Gastroenterological Surgery, Kariya Toyota General Hospital, Kariya, Aichi, 448-8505, Japan
| | - Jyunki Kato
- Department of Gastroenterological Surgery, Kariya Toyota General Hospital, Kariya, Aichi, 448-8505, Japan
| | - Misato Sawai
- Department of Gastroenterological Surgery, Kariya Toyota General Hospital, Kariya, Aichi, 448-8505, Japan
| | - Yuki Eguchi
- Department of Gastroenterological Surgery, Kariya Toyota General Hospital, Kariya, Aichi, 448-8505, Japan
| | - Takahisa Hirokawa
- Department of Gastroenterological Surgery, Kariya Toyota General Hospital, Kariya, Aichi, 448-8505, Japan
| | - Minoru Yamamoto
- Department of Gastroenterological Surgery, Kariya Toyota General Hospital, Kariya, Aichi, 448-8505, Japan
| | - Kenji Kobayashi
- Department of Gastroenterological Surgery, Kariya Toyota General Hospital, Kariya, Aichi, 448-8505, Japan
| | - Shuji Takiguchi
- Department of Gastroenterological Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, 467-8601, Japan
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Eguchi Y, Nakai T, Kojima M, Wakabayashi M, Sakamoto N, Sakashita S, Miyazaki S, Taki T, Watanabe R, Watanuki R, Yamauchi C, Iwatani T, Mukohara T, Onishi T, Ishii G. A pathologic method for extracting good prognosis group in triple negative breast cancer after neoadjuvant chemotherapy. Cancer Sci 2022; 113:1507-1518. [PMID: 35143092 PMCID: PMC8990870 DOI: 10.1111/cas.15273] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 12/17/2021] [Accepted: 01/07/2022] [Indexed: 11/28/2022] Open
Abstract
The area of residual tumor (ART) is a prognostic factor in patients treated with neoadjuvant chemotherapy (NAC) for lung, pancreatic, and rectal cancers. This study aimed to evaluate the usefulness of ART as a method for predicting the prognosis of triple-negative breast cancer (TNBC) patients after neoadjuvant chemotherapy. We included 143 patients with TNBC treated with NAC. The ART at the maximum cut surface of the residual tumor was measured. We divided the patients into three groups: ART-0 (ART=0 mm2 ), ART-low (0 mm2 < ART ≤ 136mm2 ), and ART-high (ART > 136 mm2 ), and compared their clinicopathological factors and prognosis. There were no significant differences in both recurrence-free survival (RFS) and overall survival (OS) between ART-0 and ART-low; however, the ART-high group had significantly shorter RFS and OS than the ART-0 and ART-low groups. Multivariate analysis showed that ART-0, and -low and ypN (-) were independent favorable prognostic factors for RFS. Groups with both ART-low and ypN(-) as well as those with ART-0 and ypN(-) showed significantly longer OS and RFS than the other groups (p<0.05). Moreover, there was no significant difference in the RFS and OS between the ART-0 and ypN(-) groups and the ART-low and ypN(-) groups (p=0.249 and p=0.554, respectively). We concluded that ART is a candidate histopathological evaluation method for predicting the prognosis of TNBC patients treated with NAC. Furthermore, postoperative chemotherapy could be omitted in patients with ART-0 and ypN(-) (pathological complete response) and those with ART-low and ypN(-).
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Affiliation(s)
- Yuki Eguchi
- Department of Pathology and Clinical Laboratories, National Cancer Center Hospital East, Kashiwa, Chiba, Japan.,Advanced Clinical Research on Cancer Course, Juntendo University Graduate School of Medicine, Bunkyo-ku, Tokyo, Japan.,Department of Breast Surgery, National Cancer Center Hospital East, Kashiwa, Chiba, Japan
| | - Tokiko Nakai
- Department of Pathology and Clinical Laboratories, National Cancer Center Hospital East, Kashiwa, Chiba, Japan
| | - Motohiro Kojima
- Department of Pathology and Clinical Laboratories, National Cancer Center Hospital East, Kashiwa, Chiba, Japan
| | - Masashi Wakabayashi
- Clinical Research Support Office, National Cancer Center Hospital East, Kashiwa, Chiba, Japan
| | - Naoya Sakamoto
- Department of Pathology and Clinical Laboratories, National Cancer Center Hospital East, Kashiwa, Chiba, Japan
| | - Shingo Sakashita
- Department of Pathology and Clinical Laboratories, National Cancer Center Hospital East, Kashiwa, Chiba, Japan
| | - Saori Miyazaki
- Department of Pathology and Clinical Laboratories, National Cancer Center Hospital East, Kashiwa, Chiba, Japan
| | - Tetsuro Taki
- Department of Pathology and Clinical Laboratories, National Cancer Center Hospital East, Kashiwa, Chiba, Japan
| | - Reiko Watanabe
- Department of Pathology and Clinical Laboratories, National Cancer Center Hospital East, Kashiwa, Chiba, Japan
| | - Rurina Watanuki
- Department of Breast Surgery, National Cancer Center Hospital East, Kashiwa, Chiba, Japan
| | - Chisako Yamauchi
- Department of Breast Surgery, National Cancer Center Hospital East, Kashiwa, Chiba, Japan
| | - Tsuguo Iwatani
- Department of Breast Surgery, National Cancer Center Hospital East, Kashiwa, Chiba, Japan
| | - Toru Mukohara
- Department of Medical Oncology, National Cancer Center Hospital East, Kashiwa, Chiba, Japan
| | - Tatsuya Onishi
- Department of Breast Surgery, National Cancer Center Hospital East, Kashiwa, Chiba, Japan
| | - Genichiro Ishii
- Department of Pathology and Clinical Laboratories, National Cancer Center Hospital East, Kashiwa, Chiba, Japan.,Advanced Clinical Research on Cancer Course, Juntendo University Graduate School of Medicine, Bunkyo-ku, Tokyo, Japan.,Division of Pathology, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center Hospital East, Kashiwa, Chiba, Japan
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Koyama N, Matsumura C, Tahara Y, Sako M, Kurosawa H, Nomura T, Eguchi Y, Ohba K, Yano Y. Symptom clusters and their influence on prognosis using EORTC QLQ-C15-PAL scores in terminally ill patients with cancer. Support Care Cancer 2021; 30:135-143. [PMID: 34241700 PMCID: PMC8636418 DOI: 10.1007/s00520-021-06380-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 04/13/2021] [Indexed: 01/06/2023]
Abstract
Purpose The aims of the present study were to investigate the symptom clusters in terminally ill patients with cancer using the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 15 Palliative Care (EORTC QLQ-C15-PAL), and to examine whether these symptom clusters influenced prognosis. Methods We analyzed data from 130 cancer patients hospitalized in the palliative care unit from June 2018 to December 2019 in an observational study. Principal component analysis was used to detect symptom clusters using the scored date of 14 items in the QLQ-C15-PAL, except for overall QOL, at the time of hospitalization. The influence of the existence of these symptom clusters and Palliative Performance Scale (PPS) on survival was analyzed by Cox proportional hazards regression analysis, and survival curves were compared between the groups with or without existing corresponding symptom clusters using the log-rank test. Results The following symptom clusters were identified: cluster 1 (pain, insomnia, emotional functioning), cluster 2 (dyspnea, appetite loss, fatigue, and nausea), and cluster 3 (physical functioning). Cronbach’s alpha values for the symptom clusters ranged from 0.72 to 0.82. An increased risk of death was significantly associated with the existence of cluster 2 and poor PPS (log-rank test, p = 0.016 and p < 0.001, respectively). Conclusion In terminally ill patients with cancer, three symptom clusters were detected based on QLQ-C15-PAL scores. Poor PPS and the presence of symptom cluster that includes dyspnea, appetite loss, fatigue, and nausea indicated poor prognosis.
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Affiliation(s)
- Nanako Koyama
- Education and Research Center for Clinical Pharmacy, Kyoto Pharmaceutical University, 5 Nakauchi-choYamashina-ku, MisasagiKyoto, 607-8414, Japan
| | - Chikako Matsumura
- Education and Research Center for Clinical Pharmacy, Kyoto Pharmaceutical University, 5 Nakauchi-choYamashina-ku, MisasagiKyoto, 607-8414, Japan
| | - Yuuna Tahara
- Education and Research Center for Clinical Pharmacy, Kyoto Pharmaceutical University, 5 Nakauchi-choYamashina-ku, MisasagiKyoto, 607-8414, Japan
| | - Morito Sako
- Department of Pharmacy, Tachibana Medical Corporation Higashisumiyoshi-Morimoto Hospital, Osaka, Japan
| | - Hideo Kurosawa
- Department of Pharmacy, Tachibana Medical Corporation Higashisumiyoshi-Morimoto Hospital, Osaka, Japan
| | - Takehisa Nomura
- Department of Pharmacy, Tachibana Medical Corporation Higashisumiyoshi-Morimoto Hospital, Osaka, Japan
| | - Yuki Eguchi
- Palliative Care Unit, Tachibana Medical Corporation Higashisumiyoshi-Morimoto Hospital, Osaka, Japan
| | - Kazuki Ohba
- Department of Palliative Care, Tachibana Medical Corporation Higashisumiyoshi-Morimoto Hospital, Osaka, Japan
| | - Yoshitaka Yano
- Education and Research Center for Clinical Pharmacy, Kyoto Pharmaceutical University, 5 Nakauchi-choYamashina-ku, MisasagiKyoto, 607-8414, Japan.
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Koyama N, Matsumura C, Shitashimizu Y, Sako M, Kurosawa H, Nomura T, Eguchi Y, Ohba K, Yano Y. The role of EORTC QLQ-C15-PAL scores and inflammatory biomarkers in predicting survival in terminally ill patients with cancer. BMC Cancer 2021; 21:304. [PMID: 33757453 PMCID: PMC7988985 DOI: 10.1186/s12885-021-08049-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 03/16/2021] [Indexed: 01/19/2023] Open
Abstract
Background The clinical use of patient-reported outcomes as compared to inflammatory biomarkers for predicting cancer survival remains a challenge in palliative care settings. We evaluated the role of the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 15 Palliative scores (EORTC QLQ-C15-PAL) and the inflammatory biomarkers C-reactive protein (CRP), albumin (Alb), and neutrophil-lymphocyte ratio (NLR) for survival prediction in patients with advanced cancer. Methods This was an observational study in terminally ill patients with cancer hospitalized in a palliative care unit between June 2018 and December 2019. Patients’ data collected at the time of hospitalization were analyzed. Cox regression was performed to examine significant factors influencing survival. A receiver operating characteristic (ROC) analysis was performed to estimate cut-off values for predicting survival within 3 weeks, and a log-rank test was performed to compare survival curves between groups divided by the cut-off values. Results Totally, 130 patients participated in the study. Cox regression suggested that the QLQ-C15-PAL dyspnea and fatigue scores and levels of CRP, Alb, and NLR were significantly associated with survival time, and cut-off values were 66.67, 66.67, 3.0 mg/dL, 2.5 g/dL, and 8.2, respectively. The areas under ROC curves of these variables were 0.6–0.7. There were statistically significant differences in the survival curves between groups categorized using each of these cut-off values (p < .05 for all cases). Conclusion Our findings suggest that the assessment of not only objective indicators for the systemic inflammatory response but also patient-reported outcomes using EORTC QLQ-C15-PAL is beneficial for the prediction of short-term survival in terminally ill patients with cancer. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-08049-3.
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Affiliation(s)
- Nanako Koyama
- Education and Research Center for Clinical Pharmacy, Kyoto Pharmaceutical University, 5-Nakauchi-cho, Misasagi, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Chikako Matsumura
- Education and Research Center for Clinical Pharmacy, Kyoto Pharmaceutical University, 5-Nakauchi-cho, Misasagi, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Yoshihiro Shitashimizu
- Education and Research Center for Clinical Pharmacy, Kyoto Pharmaceutical University, 5-Nakauchi-cho, Misasagi, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Morito Sako
- Department of Pharmacy, Tachibana Medical Corporation Higashisumiyoshi-Morimoto Hospital, Osaka, Japan
| | - Hideo Kurosawa
- Department of Pharmacy, Tachibana Medical Corporation Higashisumiyoshi-Morimoto Hospital, Osaka, Japan
| | - Takehisa Nomura
- Department of Pharmacy, Tachibana Medical Corporation Higashisumiyoshi-Morimoto Hospital, Osaka, Japan
| | - Yuki Eguchi
- Palliative Care Unit, Tachibana Medical Corporation Higashisumiyoshi-Morimoto Hospital, Osaka, Japan
| | - Kazuki Ohba
- Department of Palliative Care, Tachibana Medical Corporation Higashisumiyoshi-Morimoto Hospital, Osaka, Japan
| | - Yoshitaka Yano
- Education and Research Center for Clinical Pharmacy, Kyoto Pharmaceutical University, 5-Nakauchi-cho, Misasagi, Yamashina-ku, Kyoto, 607-8414, Japan.
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9
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Kimura M, Eguchi Y, Kuwabara Y, Mitsui A, Nagasaki T, Nakaya S, Sugita S, Sawai S. A simple and reliable procedure for laparoscopic port-site closure. Langenbecks Arch Surg 2021; 406:1233-1237. [PMID: 33598848 DOI: 10.1007/s00423-021-02121-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 02/04/2021] [Indexed: 12/15/2022]
Abstract
PURPOSE One of the complications in laparoscopic surgery is port-site hernia. It is a rare but potentially dangerous complication. Especially when using ports with a size 10 mm or more, it is required to securely close the port site. However, this procedure is often difficult especially for obese patients. METHODS We herein devised a new closure method by using a device developed for port site. These techniques are methods that can close the port site by a combination of putting in and out of thread and port rotation without removing a port. The port-site closure with these techniques was done for 53 port sites of 41 patients. RESULTS The port site was closed horizontally or vertically, depending on the shape of the port site for two patients. Modified Z-suture was done for other 37 patients. To date, we have not noted any complications from this new method, including port-site hernia. CONCLUSION With our technique, we could save operation time and reduce stress of us especially for obese patients. We would like to increase the number of patients and verify the safety and usefulness in further study.
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Affiliation(s)
- Masahiro Kimura
- Department of Surgery, Nagoya City East Medical Center, 2-23 Wakamizu 1, Chikusa-ku, Nagoya, 464-8547, Japan.
| | - Yuki Eguchi
- Department of Surgery, Nagoya City East Medical Center, 2-23 Wakamizu 1, Chikusa-ku, Nagoya, 464-8547, Japan
| | | | - Akira Mitsui
- Department of Surgery, Nagoya City West Medical Center, Nagoya, Japan
| | - Takaya Nagasaki
- Department of Surgery, Nagoya City East Medical Center, 2-23 Wakamizu 1, Chikusa-ku, Nagoya, 464-8547, Japan
| | - Seiji Nakaya
- Department of Surgery, Nagoya City East Medical Center, 2-23 Wakamizu 1, Chikusa-ku, Nagoya, 464-8547, Japan
| | - Saburo Sugita
- Department of Surgery, Nagoya City East Medical Center, 2-23 Wakamizu 1, Chikusa-ku, Nagoya, 464-8547, Japan
| | - Satomi Sawai
- Department of Surgery, Nagoya City East Medical Center, 2-23 Wakamizu 1, Chikusa-ku, Nagoya, 464-8547, Japan
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10
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Hagui E, Kimura M, Katada T, Nagasaki T, Nakaya S, Eguchi Y, Sugita S, Sawai M, Kuwabara Y, Mitsui A. Port site hernia repair using the VersaOne™ Fascial Closure System: a case report. J Surg Case Rep 2020; 2020:rjaa552. [PMID: 33391661 PMCID: PMC7765712 DOI: 10.1093/jscr/rjaa552] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 11/27/2020] [Indexed: 11/13/2022] Open
Abstract
The use of laparoscopic surgery has become widespread in recent years. One of its complications is port site hernia (PHS). It can be difficult to close the fascia at the time of laparoscopy, especially in obese patients, and there is a risk of herniation through a fascial defect with incomplete closure. It is important to ascertain closure of the defect when repairing PHS to prevent recurrence. We report a 47-year-old woman who developed a PHS at the superior aspect of the umbilicus. We repaired the defect using the VersaOneTM Fascial Closure System with laparoscopic guidance. This system allows the port site to be reliably closed while observing the suture from the abdominal cavity. The incision is the same size as a port site. If the abdominal wall is thick and the PHS has a diameter of ~10 mm, this method is considered to be indicated, regardless of the site.
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Affiliation(s)
- Emi Hagui
- Department of Surgery, Nagoya City East Medical Center, Nagoya, Aichi, Japan
| | - Masahiro Kimura
- Department of Surgery, Nagoya City East Medical Center, Nagoya, Aichi, Japan
| | - Takeyasu Katada
- Department of Surgery, Nagoya City East Medical Center, Nagoya, Aichi, Japan
| | - Takaya Nagasaki
- Department of Surgery, Nagoya City East Medical Center, Nagoya, Aichi, Japan
| | - Seiichi Nakaya
- Department of Surgery, Nagoya City East Medical Center, Nagoya, Aichi, Japan
| | - Yuki Eguchi
- Department of Surgery, Nagoya City East Medical Center, Nagoya, Aichi, Japan
| | - Saburo Sugita
- Department of Surgery, Nagoya City East Medical Center, Nagoya, Aichi, Japan
| | - Misato Sawai
- Department of Surgery, Nagoya City East Medical Center, Nagoya, Aichi, Japan
| | - Yoshiyuki Kuwabara
- Department of Surgery, Nagoya City West Medical Center, Nagoya, Aichi, Japan
| | - Akira Mitsui
- Department of Surgery, Nagoya City West Medical Center, Nagoya, Aichi, Japan
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11
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Matsumura C, Koyama N, Sako M, Kurosawa H, Nomura T, Eguchi Y, Ohba K, Yano Y. Comparison of Patient Self-Reported Quality of Life and Health Care Professional-Assessed Symptoms in Terminally ill Patients With Cancer. Am J Hosp Palliat Care 2020; 38:283-290. [PMID: 32705893 DOI: 10.1177/1049909120944157] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Few studies evaluated whether health care professionals accurately assess several symptoms for patients with cancer in palliative care units. We determined the agreement level for several symptoms related to quality of life (QOL) between patient-reported QOL assessment and health care professional-assessed symptoms based on the Support Team Assessment Schedule (STAS). METHOD An observational study was performed with terminally ill patients with cancer hospitalized in the palliative care unit between June 2018 and December 2019. Patients and health care professionals independently assessed 7 symptoms at the time of hospitalization and after 1 week. Patients completed the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C15-PAL). In examining the proportions of exact agreement, "exact agreement" referred to the pairs of the scores (QLQ-C15-PAL vs STAS) being (1 vs 0), (2 vs 1), (3 vs 2 or 3), or (4 vs 4). The relationships of physical functioning between QLQ-C15-PAL and Palliative Performance Scale (PPS) were examined. RESULTS Of 130 patients, approximately 60% had PPS scores from 40 to 60. The highest mean score on QLQ-C15-PAL was for fatigue (63.8). The exact agreement on symptoms between patients and health care professionals ranged from 15.4% (fatigue) to 57.7% (nausea and vomiting). The mean of the transformed QLQ-C15-PAL and proportions of exact agreement were negatively correlated (R 2 = 0.949, P < .05). The physical function scores in QLQ-C15-PAL for each PPS group showed no differences. CONCLUSION We expect patient-reported outcomes including QLQ-C15-PAL to be added to health care professionals' assessment of serious symptoms such as fatigue in terminally ill patients with cancer.
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Affiliation(s)
- Chikako Matsumura
- Education and Research Center for Clinical Pharmacy, Kyoto Pharmaceutical University, Kyoto, Japan
| | - Nanako Koyama
- Education and Research Center for Clinical Pharmacy, Kyoto Pharmaceutical University, Kyoto, Japan
| | - Morito Sako
- Department of Pharmacy, Tachibana Medical Corporation 38428Higashisumiyoshimorimoto Hospital, Osaka, Japan
| | - Hideo Kurosawa
- Department of Pharmacy, Tachibana Medical Corporation 38428Higashisumiyoshimorimoto Hospital, Osaka, Japan
| | - Takehisa Nomura
- Department of Pharmacy, Tachibana Medical Corporation 38428Higashisumiyoshimorimoto Hospital, Osaka, Japan
| | - Yuki Eguchi
- Palliative Care Unit, Tachibana Medical Corporation 38428Higashisumiyoshimorimoto Hospital, Osaka, Japan
| | - Kazuki Ohba
- Department of Palliative Care, Tachibana Medical Corporation Higashisumiyoshimorimoto Hospital, Osaka, Japan
| | - Yoshitaka Yano
- Education and Research Center for Clinical Pharmacy, Kyoto Pharmaceutical University, Kyoto, Japan
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12
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Younossi ZM, Tanaka A, Eguchi Y, Henry L, Beckerman R, Mizokami M. Treatment of hepatitis C virus leads to economic gains related to reduction in cases of hepatocellular carcinoma and decompensated cirrhosis in Japan. J Viral Hepat 2018; 25:945-951. [PMID: 29478258 DOI: 10.1111/jvh.12886] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Accepted: 01/17/2018] [Indexed: 12/11/2022]
Abstract
Hepatocellular carcinoma (HCC) is a serious complication of hepatitis C virus (HCV) infection. Sustained virologic response (SVR) for HCV is associated with a reduction in cirrhosis, HCC and mortality and their associated costs. Japanese HCV patients are older with higher prevalence of HCC. Here we used a decision-analytic Markov model to estimate the economic benefit of HCV cure by reducing HCC and DCC burden in Japan. A cohort of 10 000 HCV genotype 1b (GT1b) Japanese patients was modelled with a hybrid decision tree and Markov state-transition model capturing natural history of HCV over a lifetime horizon. Treatment options were approved all-oral direct-acting anti-virals (DAAs) vs no treatment. Treatment efficacy was based on clinical trials and transition rates and costs obtained from Japan-specific data. Cases of HCC, decompensated cirrhosis (DCC) and quality-adjusted life years (QALYs) were projected for patients treated with DAAs vs NT. QALYs were monetized using a willingness-to-pay threshold of ¥4-to-¥6 million. Incremental savings with treatment were calculated by adding the projected cost of complications avoided to the monetized gains in QALYs. The model showed that DAA treatment vs no treatment, reduces 2057 cases of HCC and 1478 cases of decompensated cirrhosis and saves ¥850 446.73 and ¥338 229.90 per patient (ppt). Additionally, treatment can lead to additional 2.64 QALYs gained per patient. The indirect economic gains associated with treatment-related QALY improvements were ¥10 576 000, ¥13 220 000 and ¥15 864 000 ppt (willingness-to-pay thresholds of ¥4 million, ¥5 million and ¥6 million). Total economic savings of treatment with DAAs (vs no treatment) was ¥7 526 372.63, ¥10 170 372.63 and ¥12 814 372.63, at these different willingness-to-pay thresholds. In conclusion treatment of HCV GT1b with all-oral DAAs in Japan can lead to significant direct and indirect savings related to avoidance of HCC and DCC.
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Affiliation(s)
- Z M Younossi
- Inova Health System, Betty and Guy Beatty Center for Integrated Research, Falls Church, VA, USA.,Department of Medicine, Center for Liver Diseases, Inova Fairfax Hospital, Falls Church, VA, USA
| | - A Tanaka
- Department of Medicine, Teikyo University School of Medicine, Tokyo, Japan
| | - Y Eguchi
- Liver Center, Saga University Hospital, Saga University, Saga, Japan
| | - L Henry
- Center for Outcomes Research in Liver Diseases, Washington, DC, USA
| | | | - M Mizokami
- National Center for Global Health and Medicine, Tokyo, Japan
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13
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Kimura M, Nagasaki T, Kuwabara Y, Tanaka H, Hato M, Taniwaki S, Mitsui A, Shibata Y, Mizuno K, Mori Y, Ochi N, Ueno S, Eguchi Y. Eversion stripping of the esophagus with intraesophageal insufflation-A case report. Int J Surg Case Rep 2017; 36:86-89. [PMID: 28550789 PMCID: PMC5447379 DOI: 10.1016/j.ijscr.2017.05.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 03/06/2017] [Revised: 04/19/2017] [Accepted: 05/05/2017] [Indexed: 01/03/2023] Open
Abstract
The indications for stripping of the esophagus have decreased due to the widespread of endoscopic mucosal resection and thoracoscopic surgery. Even if indications for this procedure have decreased, this is an important option in the armamentarium of the esophageal surgeon.
Introduction Patients with esophageal cancer frequently cannot tolerate thoracotomy due to their overall debilitated condition. Moreover, some patients have severe adhesions in the thoracic cavity. Eversion stripping of the esophagus is an option for resection in these patients. Presentation of case A 64-year-old man was admitted to our institution with the chief complaint of epigastric pain. Endoscopic examination showed a protruding lesion 22 cm from the incisors, with a superficial and circumferential mucosal irregularity on the distal side of the lesion. Biopsy revealed squamous cell carcinoma. Clinical stage was T1b(sm)N0M0, cStage I. In addition to the poor pulmonary status of the patient, adhesions in the intrathoracic cavity were predicted. The decision was made to perform esophageal resection without a thoracotomy. In order to ensure complete invagination of the esophagus, the esophagus was insufflated prior to stripping. The stripping process was observed with a gastroscope. During the stripping, the esophagus did not bunch up, and stripping was smooth and with minimal resistance. Discussion The stripping resection of the esophagus is an important option for the esophageal surgeon. In this case report, we describe a new eversion stripping method of the esophagus. This easy and reliable stripping method incorporates intraesophageal insufflation. Conclusion The indications for blunt esophageal dissection without thoracotomy have been decreasing. On the other hand, our method seems to be useful in optimal case of stripping of esophagus.
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Affiliation(s)
- Masahiro Kimura
- Department of Surgery, Nagoya City East Medical Center, Japan.
| | - Takaya Nagasaki
- Department of Surgery, Nagoya City East Medical Center, Japan
| | | | - Hironori Tanaka
- Department of Surgery, Nagoya City East Medical Center, Japan
| | - Motoki Hato
- Department of Surgery, Nagoya City East Medical Center, Japan
| | | | - Akira Mitsui
- Department of Surgery, Nagoya City West Medical Center, Japan
| | | | - Kotaro Mizuno
- Department of Surgery, Nagoya City East Medical Center, Japan
| | - Yoichiro Mori
- Department of Surgery, Nagoya City East Medical Center, Japan
| | - Nobuo Ochi
- Department of Surgery, Nagoya City East Medical Center, Japan
| | - Shuhei Ueno
- Department of Surgery, Nagoya City East Medical Center, Japan
| | - Yuki Eguchi
- Department of Surgery, Nagoya City East Medical Center, Japan
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14
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Eguchi Y, Oikawa Y, Suzuki M, Orita S, Yamauchi K, Suzuki M, Aoki Y, Watanabe A, Takahashi K, Ohtori S. Diffusion tensor imaging of radiculopathy in patients with lumbar disc herniation. Bone Joint J 2016; 98-B:387-94. [DOI: 10.1302/0301-620x.98b3.36036] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Aims The aim of this study was to evaluate the time course of changes in parameters of diffusion tensor imaging (DTI) such as fractional anisotropy (FA) and apparent diffusion coefficient (ADC) in patients with symptomatic lumbar disc herniation. We also investigated the correlation between the severity of neurological symptoms and these parameters. Patients and Methods A total of 13 patients with unilateral radiculopathy due to herniation of a lumbar disc were investigated with DTI on a 1.5T MR scanner and underwent micro discectomy. There were nine men and four women, with a median age of 55.5 years (19 to 79). The changes in the mean FA and ADC values and the correlation between these changes and the severity of the neurological symptoms were investigated before and at six months after surgery. Results The mean FA values were significantly lower (p = 0.0005) and mean ADC values were significantly higher (p = 0.0115) in compressed nerves than in intact nerves. Although the FA values increased significantly at six months after surgical treatment (p = 0.020), the ADC values decreased but not significantly (p = 0.498). There were strong correlations between the DTI parameters such as the FA value and the severity of the neurological symptoms as assessed using the Japanese Orthopaedic Association (JOA) score and the Roland-Morris Disability Questionnaire (RDQ). Conclusion This preliminary study suggests that it may be possible to use DTI to diagnose, quantitatively evaluate and follow-up patients with lumbar nerve entrapment. Take home message: DTI is a potential tool for functional diagnosis of lumbar nerve damage. Cite this article: Bone Joint J 2016;98-B:387–94.
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Affiliation(s)
- Y. Eguchi
- Shimoshizu National Hospital, 934-5, Shikawatashi, Yotsukaido, Chiba, 284-0003, Japan
| | - Y. Oikawa
- Chiba Children’s Hospital, 579-1
Heta-Chou, Midori-ku, Chiba, 266-0007, Japan
| | - M. Suzuki
- Shimoshizu National Hospital, 934-5, Shikawatashi, Yotsukaido, Chiba, 284-0003, Japan
| | - S. Orita
- Chiba University, 1-8-1
Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - K. Yamauchi
- Chiba University, 1-8-1
Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - M. Suzuki
- Chiba University, 1-8-1
Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Y. Aoki
- Eastern Chiba Medical Center, 3-6-2, Okayamadai, Togane, Chiba, 283-8686, Japan
| | - A. Watanabe
- Eastern Chiba Medical Center, 3-6-2, Okayamadai, Togane, Chiba, 283-8686, Japan
| | - K. Takahashi
- Chiba University, 1-8-1
Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - S. Ohtori
- Chiba University, 1-8-1
Inohana, Chuo-ku, Chiba, 260-8670, Japan
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15
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Nishida N, Ohashi J, Sugiyama M, Tsuchiura T, Yamamoto K, Hino K, Honda M, Kaneko S, Yatsuhashi H, Koike K, Yokosuka O, Tanaka E, Taketomi A, Kurosaki M, Izumi N, Sakamoto N, Eguchi Y, Sasazuki T, Tokunaga K, Mizokami M. Effects of HLA-DPB1 genotypes on chronic hepatitis B infection in Japanese individuals. ACTA ACUST UNITED AC 2015; 86:406-12. [PMID: 26449183 DOI: 10.1111/tan.12684] [Citation(s) in RCA: 9] [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: 07/07/2015] [Revised: 09/04/2015] [Accepted: 09/15/2015] [Indexed: 01/26/2023]
Abstract
Significant associations of HLA-DP alleles with chronic hepatitis B (CHB) infection are evident in Asian and Arabian populations, including Japanese, Han Chinese, Korean, and Saudi Arabian populations. Here, significant associations between CHB infection and five DPB1 alleles (two susceptibility alleles, DPB1(*) 05:01 and (*) 09:01, and three protective alleles, DPB1(*) 02:01, (*) 04:01, and (*) 04:02) were confirmed in a population comprising of 2582 Japanese individuals. Furthermore, odds ratios for CHB were higher for those with both DPB1 susceptibility alleles than for those with only one susceptibility allele; therefore, effects of susceptibility alleles were additive for risk of CHB infection. Similarly, protective alleles showed an additive effect on protection from CHB infection. Moreover, heterozygotes of any protective allele showed stronger association with CHB than did homozygotes, suggesting that heterozygotes may bind a greater variety of hepatitis B-derived peptides, and thus present these peptides more efficiently to T-cell receptors than homozygotes. Notably, compound heterozygote of the protective allele (any one of DPB1*02:01, *04:01, and *04:02) and the susceptible allele DPB1*05:01 was significantly associated with protection against CHB infection, which indicates that one protective HLA-DPB1 molecule can provide dominant protection. Identification of the HLA-DPB1 genotypes associated with susceptibility to and protection from CHB infection is essential for future analysis of the mechanisms responsible for immune recognition of hepatitis B virus antigens by HLA-DPB1 molecules.
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Affiliation(s)
- N Nishida
- Department of Hepatic Disease, The Research Center for Hepatitis and Immunology, National Center for Global Health and Medicine, Chiba, Japan.,Department of Human Genetics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - J Ohashi
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - M Sugiyama
- Department of Hepatic Disease, The Research Center for Hepatitis and Immunology, National Center for Global Health and Medicine, Chiba, Japan
| | - T Tsuchiura
- Department of Hepatic Disease, The Research Center for Hepatitis and Immunology, National Center for Global Health and Medicine, Chiba, Japan
| | - K Yamamoto
- Department of Medical Chemistry, Kurume University School of Medicine, Kurume, Japan
| | - K Hino
- Department of Hepatology and Pancreatology, Kawasaki Medical School, Kurashiki, Japan
| | - M Honda
- Department of Gastroenterology, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - S Kaneko
- Department of Gastroenterology, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - H Yatsuhashi
- Clinical Research Center, National Nagasaki Medical Center, Nagasaki, Japan
| | - K Koike
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - O Yokosuka
- Department of Gastroenterology and Nephrology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - E Tanaka
- Department of Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - A Taketomi
- Department of Gastroenterological Surgery I, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - M Kurosaki
- Division of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Tokyo, Japan
| | - N Izumi
- Division of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Tokyo, Japan
| | - N Sakamoto
- Department of Gastroenterology and Hepatology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Y Eguchi
- Division of Hepatology, Saga Medical School, Saga, Japan
| | - T Sasazuki
- Institute for Advanced Study, Kyushu University, Fukuoka, Japan
| | - K Tokunaga
- Department of Human Genetics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - M Mizokami
- Department of Hepatic Disease, The Research Center for Hepatitis and Immunology, National Center for Global Health and Medicine, Chiba, Japan
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16
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Murakami T, Eguchi Y, Oyama K, Watanabe O. Reduced-scale water test of natural circulation for decay heat removal in loop-type sodium-cooled fast reactor. Nuclear Engineering and Design 2015. [DOI: 10.1016/j.nucengdes.2015.04.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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Eguchi Y, Gando S, Ishikura H, Saitoh D, Mimuro J, Takahashi H, Kitajima I, Tsuji H, Matsushita T, Sakata Y. Efficacy of early administration of thrombomodulin alfa in patients with sepsis-induced disseminated intravascular coagulation: subanalysis from post-marketing surveillance data. Crit Care 2014. [PMCID: PMC4068652 DOI: 10.1186/cc13438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
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18
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Ohuchi M, Hashimoto K, Ushiba A, Kishimoto T, Yamane T, Hamamoto T, Tabata T, Tsujita Y, Matsushiga M, Takahashi K, Matsumura K, Fujino K, Eguchi Y. Plasma platelet-derived microparticles to platelet count ratio as a marker of mortality in critically ill patients. Crit Care 2014. [PMCID: PMC4068881 DOI: 10.1186/cc13400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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19
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Abstract
Materials with millimeter to centimeter dimensions containing multiple cavities were fabricated based on Pickering emulsion engineering.
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Affiliation(s)
- S. Fujii
- Department of Applied Chemistry, Faculty of Engineering
- Osaka Institute of Technology
- Osaka, Japan
| | - Y. Eguchi
- Department of Applied Chemistry, Faculty of Engineering
- Osaka Institute of Technology
- Osaka, Japan
| | - Y. Nakamura
- Department of Applied Chemistry, Faculty of Engineering
- Osaka Institute of Technology
- Osaka, Japan
- Nanomaterials Microdevices Research Center
- Osaka Institute of Technology
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Eguchi Y, Nakae H, Furuya T, Isono M, Kishi Y, Yoshioka T. Plasma filtration with dialysis (plasma diafiltration) in critically ill patients with acute liver failure. Crit Care 2014. [PMCID: PMC4069413 DOI: 10.1186/cc13589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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21
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Hirano S, Shimada H, Higuchi M, Ikoma Y, Shinotoh H, Furukawa S, Moriguchi S, Eguchi Y, Nogami T, Nagashima T, Suzuki M, Takahata K, Sasaki T, Kodaka F, Fujiwara H, Kimura Y, Yamada M, Maruyama M, Takano H, Zhang MR, Kuwabara S, Ito H, Suhara T. In vivo visualization of tau pathology in Alzheimer's disease patients by [11c]PBB3-PET. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.1190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Takahashi H, Mizuta T, Oeda S, Isoda H, Nakashita S, Kawaguchi Y, Izumi N, Hirai M, Kurose K, Iwane S, Eguchi Y, Kimura S, Anzai K, Ozaki I. An automated rapid detection system using the quenching probe method for detecting interleukin 28B and inosine triphosphatase single nucleotide polymorphisms in chronic hepatitis C. J Viral Hepat 2013; 20:e124-6. [PMID: 23490380 DOI: 10.1111/jvh.12026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2012] [Accepted: 10/01/2012] [Indexed: 12/09/2022]
Abstract
Single nucleotide polymorphisms (SNPs) in the interleukin 28B gene (IL28B) are good pretreatment predictors of anti-hepatitis C virus (HCV) therapy with interferon. SNPs of the inosine triphosphatase (ITPA) gene are associated with reduced haemoglobin levels during treatment with ribavirin. The i-densy™ (Arkray, Inc.), which is based on the quenching probe (QP) method, automatically detects target genes in blood samples by fluorescence quenching within 100 min. Using a QP and primer set, a gene amplification response is generated that can quickly and easily detect a specific gene's arrangement by fluorometry. The present study was conducted to compare the utility of i-densy (QP method) with that of conventional direct sequencing (DS) for detecting SNPs in the IL28B and ITPA genes in chronic hepatitis C patients. Between June 2011 and January 2012, 73 consecutive patients underwent genotyping of IL28B, and 54 patients underwent genotyping of ITPA. All of the patients were seropositive for HCV-RNA. The IL28B and ITPA genotypes were tested for bi-allelic polymorphisms in rs8099917 (T/T, T/G and G/G; minor allele, G) and rs1127354 (C/C, C/A and A/A; minor allele, A), respectively. The results obtained with the QP method were identical to those obtained with the conventional DS method. The frequency of the IL28B genotypes TT, GT and GG were 74%, 24.7% and 1.4%, respectively, and those of the ITPA genotypes CC, AC and AA were 68.5%, 29.6% and 1.9%, respectively. These results indicate that the i-densy using the QP method can automatically, quickly and easily identify genotypes of IL28B and ITPA.
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Affiliation(s)
- H Takahashi
- Department of Internal Medicine, Saga Medical School, Nabeshima, Saga, Japan
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Tani T, Shimizu T, Obata T, Tabata T, Eguchi Y, Shoji H, Akabori H, Sonoda H, Endo Y. O-15 DIRECT-HEMOPERFUSION WITH POLYMYXIN-B IMMOBILIZED FIBER REDUCES PLASMA ENDOTOXIN AND INFLAMMATORY MEDIATORS IN SEPTIC PATIENTS. Transfus Apher Sci 2012. [DOI: 10.1016/s1473-0502(12)70016-2] [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]
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Shimizu T, Tani T, Obata T, Tabata T, Eguchi Y, Shoji H, Akabori H, Sonoda H, Endo Y. P-48 ALTERATION IN PLASMA ENDOTOXIN LEVEL DURING A LONGER DURATION OF DIRECT HEMOPERFUSION WITH A POLYMYXIN B-IMMOBILIZED FIBER COLUMN IN A PATIENT WITH SEPTIC SHOCK. Transfus Apher Sci 2012. [DOI: 10.1016/s1473-0502(12)70084-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Shigemura T, Kishida S, Eguchi Y, Ohtori S, Nakamura J, Kojima M, Masuda Y, Takahashi K. Proton magnetic resonance spectroscopy of the thalamus in patients with osteoarthritis of the hip. Bone Joint Res 2012; 1:8-12. [PMID: 23610652 PMCID: PMC3626186 DOI: 10.1302/2046-3758.11.2000018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2011] [Accepted: 12/16/2011] [Indexed: 11/22/2022] Open
Abstract
Objectives The purpose of this study was to assess N-acetyl aspartate changes
in the thalamus in patients with osteoarthritis of the hip using
proton magnetic resonance spectroscopy. Methods Nine patients with osteoarthritis of the hip (symptomatic group,
nine women; mean age 61.4 years (48 to 78)) and nine healthy volunteers
(control group, six men, three women; mean age 30.0 years (26 to
38)) underwent proton magnetic resonance spectroscopy to assess
the changes of N-acetyl aspartate in the thalamus. Results The ratio of N-acetyl aspartate to creatine plus phosphocreatine
in the thalamus contralateral to the symptomatic hip in patients
with osteoarthritis of the hip was significantly lower than the
ratio of N-acetyl aspartate to creatine plus phosphocreatine in the
thalamus in the control group (1.611 (range; 1.194-1.882) vs 1.355
(range; 1.043-1.502), p < 0.001). And, a strong negative correlation
was detected between the ratio of N-acetyl aspartate to creatine
plus phosphocreatine in the thalamus contralateral to the symptomatic
hip in patients with osteoarthritis of the hip and pain duration
(r = -0.83, p = 0.018). Conclusions We evaluated the ratio of N-acetyl aspartate to creatine plus
phosphocreatine in the thalamus of patients with osteoarthritis
of the hip by using proton magnetic resonance spectroscopy. We concluded
that the ratio of N-acetyl aspartate to creatine plus phosphocreatine
in the thalamus contralateral to the symptomatic hip in patients
with osteoarthritis of the hip were significantly lower than those
in the thalamus of the control group, and that pain duration was
strongly related to the decrease of the ratio of N-acetyl aspartate
to creatine plus phosphocreatine.
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Affiliation(s)
- T Shigemura
- Graduate School of Medicine, Chiba University, Department of Orthopaedic Surgery, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
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Shigemura T, Kishida S, Eguchi Y, Ohtori S, Nakamura J, Kojima M, Masuda Y, Takahashi K. Proton magnetic resonance spectroscopy of the thalamus in patients with osteoarthritis of the hip. Bone Joint Res 2012. [DOI: 10.1302/2046-3758.1.1.2000018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Objectives The purpose of this study was to assess N-acetyl aspartate changes in the thalamus in patients with osteoarthritis of the hip using proton magnetic resonance spectroscopy. Methods Nine patients with osteoarthritis of the hip (symptomatic group, nine women; mean age 61.4 years (48 to 78)) and nine healthy volunteers (control group, six men, three women; mean age 30.0 years (26 to 38)) underwent proton magnetic resonance spectroscopy to assess the changes of N-acetyl aspartate in the thalamus. Results The ratio of N-acetyl aspartate to creatine plus phosphocreatine in the thalamus contralateral to the symptomatic hip in patients with osteoarthritis of the hip was significantly lower than the ratio of N-acetyl aspartate to creatine plus phosphocreatine in the thalamus in the control group (1.611 (1.194 to 1.882) vs 1.355 (1.043 to 1.502), p < 0.001). And, a strong negative correlation was detected between the ratio of N-acetyl aspartate to creatine plus phosphocreatine in the thalamus contralateral to the symptomatic hip in patients with osteoarthritis of the hip and pain duration (r = -0.83, p = 0.018). Conclusions We evaluated the ratio of N-acetyl aspartate to creatine plus phosphocreatine in the thalamus of patients with osteoarthritis of the hip by using proton magnetic resonance spectroscopy. We concluded that the ratio of N-acetyl aspartate to creatine plus phosphocreatine in the thalamus contralateral to the symptomatic hip in patients with osteoarthritis of the hip were significantly lower than those in the thalamus of the control group, and that pain duration was strongly related to the decrease of the ratio of N-acetyl aspartate to creatine plus phosphocreatine.
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Affiliation(s)
- T. Shigemura
- Graduate School of Medicine, Chiba University, Department
of Orthopaedic Surgery, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - S. Kishida
- Graduate School of Medicine, Chiba University, Department
of Orthopaedic Surgery, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Y. Eguchi
- Matsudo City Hospital, 4005
Kamihongo, Matsudo, 271-8511, Japan
| | - S. Ohtori
- Graduate School of Medicine, Chiba University, Department
of Orthopaedic Surgery, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - J. Nakamura
- Graduate School of Medicine, Chiba University, Department
of Orthopaedic Surgery, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - M. Kojima
- Chiba University Hospital, Department
of Radiology, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Y. Masuda
- Chiba University Hospital, Department
of Radiology, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - K. Takahashi
- Graduate School of Medicine, Chiba University, Department
of Orthopaedic Surgery, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
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Eguchi Y, Ohtori S, Orita S, Kamoda H, Arai G, Ishikawa T, Miyagi M, Inoue G, Suzuki M, Masuda Y, Andou H, Takaso M, Aoki Y, Toyone T, Watanabe A, Takahashi K. Quantitative evaluation and visualization of lumbar foraminal nerve root entrapment by using diffusion tensor imaging: preliminary results. AJNR Am J Neuroradiol 2011; 32:1824-9. [PMID: 21920866 DOI: 10.3174/ajnr.a2681] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE DTI can provide valuable structural information that may become an innovative tool in evaluating lumbar foraminal nerve root entrapment. The purpose of this study was to visualize the lumbar nerve roots and to measure their FA in healthy volunteers and patients with lumbar foraminal stenosis by using DTI and tractography with 3T MR imaging. MATERIALS AND METHODS Eight patients with lumbar foraminal stenosis and 8 healthy volunteers underwent 3T MR imaging. In all subjects, DTI was performed with echo-planar imaging at a b-value of 800 s/mm(2) and the lumbar nerve roots were visualized with tractography. Mean FA values in the lumbar nerve roots were quantified on DTI images. RESULTS In all subjects, the lumbar nerve roots were clearly visualized with tractography. In all patients, tractography also showed abnormalities such as tract disruption, nerve narrowing, and indentation in their course through the foramen. Mean FA values were significantly lower in entrapped roots than in intact roots. CONCLUSIONS We demonstrated that DTI and tractography of human lumbar nerves can visualize and quantitatively evaluate lumbar nerve entrapment with foraminal stenosis. We believe that DWI is a potential tool for the diagnosis of lumbar nerve entrapment.
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Affiliation(s)
- Y Eguchi
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chuo-ku, Japan.
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Eguchi Y. 12 Efficacy of plasma filtration with dialysis (plasma dia-filtration) for the patients with septic multiple organ failure including hyperbilirubinemia. Transfus Apher Sci 2010. [DOI: 10.1016/s1473-0502(10)70002-1] [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: 10/19/2022]
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Shimmura T, Hirahara S, Azuma T, Suzuki T, Eguchi Y, Uetake K, Tanaka T. Multi-factorial investigation of various housing systems for laying hens. Br Poult Sci 2010; 51:31-42. [DOI: 10.1080/00071660903421167] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Kuroita S, Sagara K, Eguchi Y, Yashima K, Yabe T, Shishido T, Dozono M, Yamada Y, Wakasa T, Noro T, Matsubara H, Zenihiro J, Tamii A, Okamura H, Hatanaka K, Saito T, Maeda Y, Kamada H, Tameshige Y. Measurement of 2H (p, pp) ncross sections at Ep= 250 MeV. EPJ Web of Conferences 2010. [DOI: 10.1051/epjconf/20100305022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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31
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Eguchi Y, Sagara K, Kuroita S, Yashima K, Shishido T, Yabe T, Ishikawa S. Systematic measurement of pdbreakup cross section at quasi-free scattering. EPJ Web of Conferences 2010. [DOI: 10.1051/epjconf/20100304007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Du H, Matsushima T, Spyvee M, Goto M, Shirota H, Gusovsky F, Chiba K, Kotake M, Yoneda N, Eguchi Y, DiPietro L, Harmange JC, Gilbert S, Li XY, Davis H, Jiang Y, Zhang Z, Pelletier R, Wong N, Sakurai H, Yang H, Ito-Igarashi H, Kimura A, Kuboi Y, Mizui Y, Tanaka I, Ikemori-Kawada M, Kawakami Y, Inoue A, Kawai T, Kishi Y, Wang Y. Discovery of a potent, metabolically stabilized resorcylic lactone as an anti-inflammatory lead. Bioorg Med Chem Lett 2009; 19:6196-9. [PMID: 19783437 DOI: 10.1016/j.bmcl.2009.08.096] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2009] [Revised: 08/26/2009] [Accepted: 08/31/2009] [Indexed: 10/20/2022]
Abstract
With bioactivity-guided phenotype screenings, a potent anti-inflammatory compound f152A1 has been isolated, characterized and identified as the known natural product LL-Z1640-2. Metabolic instability precluded its use for the study on animal disease models. Via total synthesis, a potent, metabolically stabilized analog ER-803064 has been created; addition of the (S)-Me group at C4 onto f152A1 has resulted in a dramatic improvement on its metabolic stability, while preserving the anti-inflammatory activities.
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Affiliation(s)
- H Du
- Eisai Research Institute of Boston, 4 Corporate Drive, Andover, MA 01810, USA
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Shimmura T, Azuma T, Eguchi Y, Uetake K, Tanaka T. Effects of separation of resources on behaviour, physical condition and production of laying hens in furnished cages. Br Poult Sci 2009; 50:39-46. [PMID: 19234928 DOI: 10.1080/00071660802613260] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
1. Based on our previous studies, we designed a medium-sized furnished cage with a dust bath and nest box on both sides of the cage (MFS) and evaluated its usefulness. 2. We used 180 White Leghorn layers. At the age of 17 weeks, the birds were distributed at random into one of the 4 cage designs: conventional cages (CC; 6 cages and 5 hens per cage), small (SF; 6 cages and 5 hens per cage) and medium furnished cages (MFL; 6 cages and 10 hens per cage) with a 'localised' dust bath and nest box on one side of the cage, and MFS (6 cages and 10 hens per cage). The total allocation of resources per bird was similar for all furnished cage designs. Behaviour, physical condition and production were measured in each cage. 3. Moving was more frequent in MFS and MFL than in CC and SF. The proportion of hens performing aggressive pecking and severe feather pecking was higher in MFL than CC and SF. These aggressive interactions occurred frequently in the dust bath area in MFL; however, these tendencies were not found in MFS. Egg production and egg mass were lower in MFL than in SF, while the production in MFS was similar to those in CC and SF. MFS hens laid eggs on the cage floor more often than in MFL. 4. In conclusion, these results demonstrate the possible usefulness of MFS. However, some inconsistent results and ways of improving MFS design were also identified.
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Affiliation(s)
- T Shimmura
- School of Veterinary Medicine, Azabu University, Sagamihara, Kanagawa, Japan
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Shimizu T, Hanasawa K, Sato K, Umeki M, Koga N, Naganuma T, Sato S, Shimonishi T, Ikeda T, Matsuno N, Ono S, Saitoh H, Satoh K, Otani Y, Endo Y, Eguchi Y, Tani T. The Clinical Significance of Serum Procalcitonin Levels following Direct Hemoperfusion with Polymyxin B-Immobilized Fiber Column in Septic Patients with Colorectal Perforation. Eur Surg Res 2008; 42:109-17. [DOI: 10.1159/000187169] [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] [Received: 05/19/2008] [Accepted: 09/17/2008] [Indexed: 11/19/2022]
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Shimmura T, Azuma T, Hirahara S, Eguchi Y, Uetake K, Tanaka T. Relation between social order and use of resources in small and large furnished cages for laying hens. Br Poult Sci 2008; 49:516-24. [DOI: 10.1080/00071660802302203] [Citation(s) in RCA: 20] [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: 10/21/2022]
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Shimmura T, Suzuki T, Hirahara S, Eguchi Y, Uetake K, Tanaka T. Pecking behaviour of laying hens in single-tiered aviaries with and without outdoor area. Br Poult Sci 2008; 49:396-401. [DOI: 10.1080/00071660802262043] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Hirata K, Ishida C, Eguchi Y, Sakai K, Ozoe F, Ozoe Y, Matsuda K. Role of a serine residue (S278) in the pore-facing region of the housefly L-glutamate-gated chloride channel in determining sensitivity to noncompetitive antagonists. Insect Mol Biol 2008; 17:341-350. [PMID: 18651916 DOI: 10.1111/j.1365-2583.2008.00806.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Gamma-hexachlorocyclohexane (gamma-HCH), fipronil and picrotoxinin are noncompetitive antagonists (NCAs) of L-glutamate-gated chloride channels (GluCls), yet their potencies are weaker than those on gamma-aminobutyric acid receptors (GABARs). The A302S mutation of Drosophila RDL (resistant to dieldrin) GABAR confers NCA resistance, and housefly GluCls (MdGluCls) possess S278 as the residue corresponding to the A302. Thus, the effects of S278A mutation on the NCA actions on MdGluCls were investigated. The S278A mutation resulted in enhanced blocking by NCAs of the MdGluCl response to 30 microM L-glutamate. However, such actions of gamma-HCH and picrotoxinin, but not of fipronil, on the S278A mutant were reduced with 200 microM L-glutamate. Further increases in the L-glutamate concentration led to potentiation by NCAs of the mutant response to L-glutamate.
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Affiliation(s)
- K Hirata
- Department of Applied Biological Chemistry, School of Agriculture, Kinki University, Nakamachi, Nara, Japan
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Eguchi Y. EFFICACY OF ANTI-COAGULATION AND ANTI-INFLAMATORY THERAPY FOR SEVERE SEPSIS. J Thromb Haemost 2007. [DOI: 10.1111/j.1538-7836.2007.tb01158.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ishiwata T, Kilgour RJ, Uetake K, Eguchi Y, Tanaka T. Choice of attractive conditions by beef cattle in a Y-maze just after release from restraint. J Anim Sci 2007; 85:1080-5. [PMID: 17121976 DOI: 10.2527/jas.2006-405] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [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: 11/13/2022] Open
Abstract
To provide useful information on how to moderate posthandling stress, the attractiveness of different conditions to beef cattle just after release from restraint was determined. Angus heifers were individually allowed to enter a choice area after 2 min of restraint in a squeeze chute and to choose between 2 pens. After the heifer had chosen a pen, it could freely access both test pens and the choice area for a further 5 min. In Exp. 1, each heifer was given 1 of the following choices: a pen with 3 familiar heifers (PEERS) vs. a pen with a pile of hay on a metal rack (FOOD; n = 34); PEERS vs. the bare pen (BARE; n = 34); and FOOD vs. BARE (n = 35). When the choice combination was PEERS vs. BARE, more heifers chose PEERS (P < 0.05). When the choice combination was PEERS vs. FOOD, more heifers than expected tended to choose PEERS (P < 0.10), whereas FOOD and BARE did not differ. The latency to choose either pen was shorter if PEERS was 1 of the 2 choices (P < 0.01). After choosing, more heifers entered the PEERS pen than the FOOD (P < 0.05) or BARE (P < 0.01) pens. In Exp. 2, another 86 heifers were given 1 of the following choices: a pen with a familiar handler standing inside (STI) vs. a pen with a novel object (NO; n = 29); a pen with the handler standing outside the pen (STO) vs. NO (n = 29); a pen in which the handler was sitting inside (SI) vs. NO (n = 28). Fewer heifers chose the pen with the human (STI, STO, and SI; all P < 0.01). Except for the choice of STO vs. NO, the number of heifers that had voluntarily chosen either pen was larger than expected (STI and SI; both P < 0.01). The number of times in which the NO pen was entered was greater than the STI and STO (P < 0.01), although the number of times in which the SI and NO pens were entered was not different. More heifers avoided the human, particularly a standing human. In conclusion, just after handling with restraint, returning cattle to the group of peers and not approaching the cattle needlessly should moderate their stress.
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Affiliation(s)
- T Ishiwata
- School of Veterinary Medicine, Azabu University, Sagamihara 229-8501, Japan
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Eguchi Y, Ihara M, Ochi E, Shibata Y, Matsuda K, Fushiki S, Sugama H, Hamasaki Y, Niwa H, Wada M, Ozoe F, Ozoe Y. Functional characterization of Musca glutamate- and GABA-gated chloride channels expressed independently and coexpressed in Xenopus oocytes. Insect Mol Biol 2006; 15:773-83. [PMID: 17201770 DOI: 10.1111/j.1365-2583.2006.00680.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Ligand-gated chloride channels (LGICs) are important targets for insecticides and parasiticides. Genes encoding subunits of two LGICs, a glutamate-gated chloride channel (MdGluCl-alpha) and a gamma-aminobutyric acid (GABA)-gated chloride channel (MdRdl), were cloned from house-flies (Musca domestica L.). These genes were first expressed independently in Xenopus laevis oocytes by cRNA injection in order to investigate the pharmacology of these ligand-gated channels using two-electrode voltage-clamp electrophysiology. It was found that L-glutamate and GABA activated the MdGluCl-alpha homo-oligomers with an EC(50) value of 30 microM and the MdRdl homo-oligomers with an EC(50) value of 101 microM, respectively. Both channels were chloride ion-permeable, and the MdRdl channel was more sensitive to chloride channel blockers, such as gamma-hexachlorocyclohexane (gamma-HCH), fipronil and picrotoxinin, than the MdGluCl-alpha channel. MdGluCl-alpha required only 1-2 days of incubation after cRNA injection to be expressed in oocytes, whereas 4-7 days of incubation was necessary to achieve MdRdl expression. However, when the cRNA of MdGluCl-alpha was injected at a dose of 1% (w/w) 1 day after the injection of the cRNA of MdRdl, a significant increase in the current amplitude of responses to GABA was observed, and the incubation period necessary for MdRdl expression became shorter. These results suggest that MdGluCl-alpha assists in the expression of MdRdl when the two are coexpressed.
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Affiliation(s)
- Y Eguchi
- Department of Applied Biological Chemistry, Faculty of Agriculture, Kinki University, Nara, Japan
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Zhang H, Ozaki I, Mizuta T, Hamajima H, Yasutake T, Eguchi Y, Ideguchi H, Yamamoto K, Matsuhashi S. Involvement of programmed cell death 4 in transforming growth factor-beta1-induced apoptosis in human hepatocellular carcinoma. Oncogene 2006; 25:6101-12. [PMID: 16682950 DOI: 10.1038/sj.onc.1209634] [Citation(s) in RCA: 201] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The programmed cell death 4 (PDCD4) gene was originally identified as a tumor-related gene in humans and acts as a tumor-suppressor in mouse epidermal carcinoma cells. However, its function and regulatory mechanisms of expression in human cancer remain to be elucidated. We therefore investigated the expression of PDCD4 in human hepatocellular carcinoma (HCC) and the role of PDCD4 in human HCC cells. Downregulation of PDCD4 protein was observed in all HCC tissues tested compared with corresponding noncancerous liver, as revealed by Western blotting or immunohistochemical staining. Human HCC cell line, Huh7, transfected with PDCD4 cDNA showed nuclear fragmentation and DNA laddering characteristic of apoptotic cells associated with mitochondrial changes and caspase activation. Transforming growth factor-beta1 (TGF-beta1) treatment of Huh7 cells resulted in increased PDCD4 expression and occurrence of apoptosis, also concomitant with mitochondrial events and caspase activation. Transfection of Smad7, a known antagonist to TGF-beta1 signaling, protected cells from TGF-beta1-mediated apoptosis and suppressed TGF-beta1-induced PDCD4 expression. Moreover, antisense PDCD4 transfectants were resistant to apoptosis induced by TGF-beta1. In conclusion, these data suggest that PDCD4 is a proapoptotic molecule involved in TGF-beta1-induced apoptosis in human HCC cells, and a possible tumor suppressor in hepatocarcinogenesis.
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Affiliation(s)
- H Zhang
- Department of Internal Medicine, Division of Hepatology and Metabolism, Saga Medical School, Saga University, Saga, Japan
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Cadden IS, Johnston BT, Connolly R, Gates D, Tsujimoto Y, Eguchi Y, McGinty A. An investigation into the role of Bcl-2 in neuroendocrine differentiation. Biochem Biophys Res Commun 2005; 326:442-8. [PMID: 15582597 DOI: 10.1016/j.bbrc.2004.11.046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2004] [Indexed: 11/26/2022]
Abstract
INTRODUCTION In addition to its role in apoptosis suppression, Bcl-2 has been reported to be co-expressed with neuroendocrine markers in several tissues, leading to speculation that this oncoprotein may promote neuroendocrine differentiation. AIM This study investigated whether Bcl-2 modulated neuroendocrine biopeptide expression. METHODS Levels of chromogranin A, neurone specific enolase, protein gene peptide 9.5, pancreatic polypeptide, and the chromogranin-derived peptides, intervening peptide and vasostatin-1 were examined by immunocytochemistry in rat phaeochromocytoma (PC12) cell lines genetically engineered to over-express Bcl-2 and their mock-transfected controls. Intensity of fluorescence was graded using a semi-quantitative scale from (-) indicating negative expression to (+++) indicating intense positivity. RESULTS Mann-Whitney U analysis indicated that no significant differences in expression existed between control and Bcl2 over-expressing cell lines for any of the six peptides examined. CONCLUSIONS The results of this study do not support the hypothesis that Bcl-2 promotes the acquisition of a neuroendocrine phenotype.
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Affiliation(s)
- I S Cadden
- Department of Medicine, Queen's University Belfast, Mulhouse Building, RGH, Belfast BT12 6BJ, N. Ireland, UK
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Ohuchi H, Satoh T, Eguchi Y, Mori K. Preliminary study of using imaging plates to map skin dose of patients in interventional radiology procedures. Radiat Prot Dosimetry 2005; 117:432-9. [PMID: 15985500 DOI: 10.1093/rpd/nch468] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
A method using europium-doped BaFBr imaging plates (IPs) has been studied for mapping entrance skin doses during interventional radiology (IR); the mapping is useful for detecting overlap between irradiation fields and determining the most exposed skin areas. IPs, which are two-dimensional radiation sensors made of photostimulated luminescence materials, have a linear dose response up to approximately 100 Gy, can accurately measure doses from 1 microGy to 10 Gy and can be used repeatedly. Because the energy dependence of IPs is rather high, the IPs were characterised in this study and a sensitivity variation of approximately 13% was observed for effective energies of 32.7 to 44.7 keV, which are used in IR procedures. Simulation of actual interventional cardiology procedures showed that the variation of sensitivity was within 5%, meaning that IPs are practical for measuring skin doses during IR. Moreover, the patient data can be stored online and easily called up when IR procedures must be repeated, helping to prevent radiation injuries.
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Affiliation(s)
- H Ohuchi
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aramaki-Aoba, Sendai 980-8578, Japan.
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Konishi H, Eguchi Y, Fujii M, Saotome T, Sasaki T, Takahashi K, Sudo M, Morii H, Minouchi T, Yamaji A. Unusual hypersensitivity to warfarin in a critically ill patient. J Clin Pharm Ther 2004; 29:485-90. [PMID: 15482394 DOI: 10.1111/j.1365-2710.2004.00583.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A patient was admitted to the intensive care unit because of respiratory failure, and warfarin therapy was started at 2 mg/day for the treatment of pulmonary embolism, together with other medications. Despite the low dosage of warfarin, international normalized ratio (INR) was markedly elevated from 1.15 to 11.28 for only 4 days, and bleeding symptoms concurrently developed. Vitamin K2 was infused along with discontinuation of warfarin. One day later, the INR was found to have decreased, and bleeding was also improved. An objective causality assessment indicated a probable relationship between clotting abnormality and warfarin administration, although the degree of elevation of the INR was unusual in the light of the daily warfarin dose and duration of its exposure. Based on the clinical status of the patient, it was suspected that several conditions contributed to the abnormal hypersensitivity to warfarin. Contributory factors probably included pharmacokinetic interactions with co-administrated drugs, vitamin K deficiency caused by decreased dietary intake, reduced gut bacterial production, impaired intestinal absorption and hepatic synthetic capacity, and increased consumption of clotting factors. In view of our experience in the present case, it should be stressed that close monitoring of coagulation capacity is necessary in critically ill patients in order to avoid fatal haemorrhage after initiating warfarin therapy regardless of the dosage.
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Affiliation(s)
- H Konishi
- Department of Hospital Pharmacy, Shiga University of Medical Science, Seta, Otsu, Japan.
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Hasegawa H, Eguchi Y, Endoh K, Yoshida T, Okabe H, Tani T. Effectiveness of coagulation factor XIII concentrate for reversing loss of tensile strength of rat intestinal anastomoses. Eur Surg Res 2004; 36:53-8. [PMID: 14730224 DOI: 10.1159/000075075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2002] [Accepted: 07/28/2003] [Indexed: 11/19/2022]
Abstract
BACKGROUND Blood coagulation factor XIII (F-XIII) promotes cross-linking of fibrin during blood coagulation. Impaired clot stabilization in patients with genetic deficiencies of F-XIII is associated with marked pathologies of wound healing. METHODS 60 rats given carbon tetrachloride underwent ileal anastomosis after which they received albumin (Alb animals) or F-XIII concentrate (F-XIII animals) immediately after surgery and daily thereafter until day 2 or 4 and were euthanized on day 3 or 5, respectively, or until day 5 and were euthanized on day 7, 10, or 21. We measured the plasma F-XIII activity and anastomotic tensile strength, followed by immunohistochemical localization of F-XIII subunit A within anastomoses. RESULTS On day 3, there were no significant differences between Alb and F-XIII animals for plasma F-XIII activity and tensile strength, and both groups of animals showed little immunostaining for F-XIII on anastomoses. Plasma F-XIII activities did not differ between Alb and F-XIII animals on day 5 (115.8 +/- 16.8 vs. 137.3 +/- 14.9%). Although the tensile strength in both groups was increased compared with that of day 3, that in F-XIII animals (129.8 +/- 3.3 gf) was significantly higher than that in Alb animals (100.8 +/- 5.3 gf, p = 0.014). F-XIII animals showed de novo collagen fibers and intense immunoreactivity of F-XIII in the extracellular matrix around the anastomoses. Similar differences occurred on day 7 but not days 10 and 21. CONCLUSIONS F-XIII concentrate may accelerate the early healing process of intestinal anastomosis because of the protein's accumulation in situ.
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Affiliation(s)
- H Hasegawa
- Department of Surgery, Shiga University of Medical Science, Otsu City, Shiga, Japan
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Kubota N, Goto I, Nakashima Y, Eguchi Y. Adsorption and Desorption of Serum Proteins Using Cellulosic Affinity Membrane Modified withN-Acetyl-l-phenylalanine. SEP SCI TECHNOL 2003. [DOI: 10.1081/ss-120016577] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Eguchi Y, Eguchi T. Amino acid sequence of Kalinowaski's Tinamou (Nothoprocta kalinowskii) hemoglobin and the rate of evolution of bird alphaD-globin. J Protein Chem 2001; 20:543-9. [PMID: 11838542 DOI: 10.1023/a:1013317112913] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Two hemoglobin components are recognized in erythrocytes of the adult Tinamou. We determined the amino acid sequences of Tinamou alphaD-, alphaA-, and beta-globins from intact globin chains and several chemically cleaved fragments. A remarkable feature of Tinamou hemoglobin was a deletion in the alphaD-globin chain. This has not been reported in the literature, except in pigeon embryonic alphaD-globin. The amino acid sequences of Tinamou globin were highly similar to those of Ostrich and Rhea hemoglobin. Comparison between Tinamou, Ostrich, and Rhea that suggested the evolution speed of globin, alphaD = alphaA > beta, was related with the early appearance birds. The important residues in Tinamou hemoglobin as the heme contact and oxygen binding regions were highly conserved in other species.
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Affiliation(s)
- Y Eguchi
- Research Laboratory Center, Faculty of Medicine, University of the Ryukyus, Okinawa, Japan.
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Abstract
BACKGROUND Wound healing is influenced by tissue oxygen tension and blood perfusion, but not by moderate anemia or hemodilution. The effect of perioperative profound hemodilution on small-intestinal wound healing remains unclear. METHODS We performed jejunectomy followed by end-to-end anastomosis in rabbits subjected to a variety of perioperative hemodilutions: HD((HES)), hemodiluted with hydroxyethylstarch; HD((P+HES)), hemodiluted with autologous plasma and hydroxyethylstarch; HD((HES))/R, hemodiluted with hydroxyethylstarch and retransfused afterward. Intraoperative hemoglobin levels were 5 g 100 ml(-1). On Postoperative Day 5, the tensile strength (TS) of the anastomosis was measured and histological specimen was obtained. The time courses of hemoglobin, serum albumin (Alb), plasma fibrinogen (Fbg), and plasma activity of factor XIII (F XIII) were measured. RESULTS TS in HD((HES))/R (236.0 +/- 52.2 gf) was similar to that in control (266.5 +/- 41.6 gf); however, TS in HD((HES)) (179.8 +/- 17.9 gf) and HD((P+HES)) (165.5 +/- 14.7 gf) decreased significantly. The histological findings in HD((HES))/R were similar to those of control, whereas they demonstrated a delayed healing process in HD((HES)) and HD((P+HES)). Hemoglobin levels were still lower on Postoperative Day 5 in HD((HES)) and HD((P+HES)), but increased to 10.0 g 100 ml(-1) after retransfusion in HD((HES))/R. Hemodilution caused significant decreases in Alb, Fbg, and F XIII, but the values after retransfusion in HD((HES))/R were similar to postoperative values in HD((P+HES)). CONCLUSION Intraoperative profound hemodilution does not interfere with small-intestinal wound healing as long as postoperative hemoglobin levels were maintained above 10 g 100 ml(-1). Postoperative levels of other plasma constituents may not influence wound healing.
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Affiliation(s)
- R Mandai
- Intensive Care Unit, Shiga University of Medical Science, Shiga, 520-2192, Japan.
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Abstract
We propose a system named AIGNET (Algorithms for Inference of Genetic Networks), and introduce two top-down approaches for the inference of interrelated mechanism among genes in genetic network that is based on the steady state and temporal analyses of gene expression patterns against some kinds of gene perturbations such as disruption or overexpression. The former analysis is performed by a static Boolean network model based on multi-level digraph, and the latter one is by S-system model. By integrating these two analyses, we show our strategy is flexible and rich in structure to treat gene expression patterns; we applied our strategy to the inference of a genetic network that is composed of 30 genes as a case study. Given the gene expression time-course data set under the conditions of wild-type and the deletion of one gene, our system enabled us to reconstruct the same network architecture as original one.
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Affiliation(s)
- Y Maki
- Dept. of Biochemical Engineering & Science, Kyushu Institute of Technology, 680-4, Kawazu, Iizuka-city, Fukuoka 820-8502, Japan
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Imai Y, Asakura Y, Kinoshita M, Sueyoshi T, Eguchi Y, Oota S, Fujiwara K, Suzuki K, Miyamae T. [Disseminated bone marrow metastases from gastric cancer: detection and monitoring the effectiveness of chemotherapy by bone marrow scintigraphy]. Kaku Igaku 2001; 38:237-40. [PMID: 11452490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
Disseminated bone marrow metastasis of cancer is a critical condition, frequently complicated by disseminated intravascular coagulation (DIC). A 32-year-old man with gastric cancer was diagnosed as having disseminated bone marrow metastases. Bone scintigraphy demonstrated many abnormal radionuclide accumulations in the whole body. Bone marrow aspiration revealed cancer cells. Bone marrow scintigraphy with 111In-Cl3 demonstrated central marrow failure and peripheral expansion. The remission of DIC was observed after sequential methotrexate and 5-FU therapy, then uptake of radionuclide in the central bone marrow was remarkably improved by bone marrow scan. After thirteen anti-cancer chemotherapies, recurrence of DIC was suspected because of the reduction of blood platelet count. Nevertheless, repeated bone marrow scan still demonstrated the central bone marrow clearly. The patient discharged from our hospital without the recurrence of DIC. We considered bone marrow scintigraphy is useful in the detection of disseminated bone marrow metastases of cancer and monitoring the effectiveness of chemotherapy.
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Affiliation(s)
- Y Imai
- Third Department of Internal Medicine, Saitama Medical School
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