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Ohno A, Kaku T, Fujimori N. Spy basket retrieval method of an embedded hepaticogastrostomy stent (with videos). Endosc Ultrasound 2023; 12:167-168. [PMID: 35899901 PMCID: PMC10134930 DOI: 10.4103/eus-d-21-00213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Akihisa Ohno
- Department of Gastroenterology, Clinical Research Institute, National Hospital Organization Kyushu Medical Center; Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Toyoma Kaku
- Department of Gastroenterology, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Nao Fujimori
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Ohno A, Fujimori N, Kaku T, Takamatsu Y, Matsumoto K, Murakami M, Teramatsu K, Takeno A, Hijioka M, Kawabe K, Harada N, Nakamuta M, Aso A, Oono T, Ogawa Y. Feasibility and Efficacy of Endoscopic Ultrasound-Guided Hepaticogastrostomy Without Dilation: A Propensity Score Matching Analysis. Dig Dis Sci 2022; 67:5676-5684. [PMID: 35689110 DOI: 10.1007/s10620-022-07555-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 03/23/2022] [Indexed: 01/05/2023]
Abstract
BACKGROUND Recently, endoscopic ultrasound-guided hepaticogastrostomy (EUS-HGS) procedures have been gradually established; nonetheless, some adverse events (AEs) have been reported. Dilation procedures using a non-cautery or cautery device increase the incidence of AEs in EUS-HGS. AIMS We evaluated EUS-HGS procedures without dilation and the factors associated with dilation. METHODS We enrolled 79 patients who underwent EUS-HGS between July 2015 and March 2021 at two centers, 72 of whom had technical success (72/79, 91%). During the EUS-HGS procedures, we defined patients without dilation procedures as the dilation (-) group. We divided the patients into two groups: the dilation (+) (35 patients) and dilation (-) (37 patients) groups. We performed a propensity score matching analysis to adjust for confounding bias between the two groups. Multivariable logistic regression analysis was conducted to identify factors associated with dilation. RESULTS There was no difference in clinical success rate between the dilation (+) and dilation (-) groups (91% vs. 95%, P = 0.545). The AE rate (P = 0.013) and long procedure time (P = 0.017) were significantly higher in the dilation (+) group than in the dilation (-) group before and after propensity score matching. Factors associated with dilation were plastic stent placement (odds ratio [OR], 6.96; 95% confidence interval [CI], 1.68-28.7; P = 0.007) and puncture angle of ≤ 90° (OR, 44.6; 95% CI, 5.1-390; P < 0.001). CONCLUSIONS A dilation procedure in EUS-HGS may not always be necessary. However, patients with an angle of ≤ 90° between the needle and intrahepatic biliary tract or plastic stent deployment require dilation procedures.
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Affiliation(s)
- Akihisa Ohno
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, Fukuoka, Japan
- Department of Gastroenterology, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Nao Fujimori
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, Fukuoka, Japan.
| | - Toyoma Kaku
- Department of Gastroenterology, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Yu Takamatsu
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, Fukuoka, Japan
| | - Kazuhide Matsumoto
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, Fukuoka, Japan
| | - Masatoshi Murakami
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, Fukuoka, Japan
| | - Katsuhito Teramatsu
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, Fukuoka, Japan
| | - Ayumu Takeno
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, Fukuoka, Japan
| | - Masayuki Hijioka
- Department of Gastroenterology, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Ken Kawabe
- Department of Gastroenterology, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Naohiko Harada
- Department of Gastroenterology, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Makoto Nakamuta
- Department of Gastroenterology, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Akira Aso
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, Fukuoka, Japan
| | - Takamasa Oono
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, Fukuoka, Japan
| | - Yoshihiro Ogawa
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka City, Fukuoka, Japan
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Murakami M, Fujimori N, Kaku T. Peroral direct cholangioscopy using balloon endoscopy for massive bile duct stones after Roux-en-Y hepaticojejunostomy. Endoscopy 2022; 55:E177-E178. [PMID: 36368668 PMCID: PMC9829827 DOI: 10.1055/a-1959-1500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Masatoshi Murakami
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan,Department of Gastroenterology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Nao Fujimori
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Toyoma Kaku
- Department of Gastroenterology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
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Ohno A, Fujimori N, Kaku T, Hijioka M, Kawabe K, Harada N, Nakamuta M, Oono T, Ogawa Y. The feasibility of percutaneous transhepatic gallbladder aspiration for acute cholecystitis after self-expandable metallic stent placement for malignant biliary obstruction: a 10-year retrospective analysis in a single center. Clin Endosc 2022; 55:784-792. [PMID: 36266237 PMCID: PMC9726445 DOI: 10.5946/ce.2021.244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 02/25/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND/AIMS Patients with acute cholecystitis (AC) after metallic stent (MS) placement for malignant biliary obstruction (MBO) have a high surgical risk. We performed percutaneous transhepatic gallbladder aspiration (PTGBA) as the first treatment for AC. We aimed to identify the risk factors for AC after MS placement and the poor response factors of PTGBA. METHODS We enrolled 401 patients who underwent MS placement for MBO between April 2011 and March 2020. The incidence of AC was 10.7%. Of these 43 patients, 37 underwent PTGBA as the first treatment. The patients' responses to PTGBA were divided into good and poor response groups. RESULTS There were 20 patients in good response group and 17 patients in poor response group. Risk factors for cholecystitis after MS placement included cystic duct obstruction (p<0.001) and covered MS (p<0.001). Cystic duct obstruction (p=0.003) and uncovered MS (p=0.011) demonstrated significantly poor responses to PTGBA. Cystic duct obstruction is a risk factor for cholecystitis and poor response factor for PTGBA, whereas covered MS is a risk factor for cholecystitis and an uncovered MS is a poor response factor of PTGBA for cholecystitis. CONCLUSION The onset and poor response factors of AC after MS placement were different between covered and uncovered MS. PTGBA can be a viable option for AC after MS placement, especially in patients with covered MS.
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Affiliation(s)
- Akihisa Ohno
- Department of Gastroenterology, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan,Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Nao Fujimori
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Toyoma Kaku
- Department of Gastroenterology, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan,Correspondence: Toyoma Kaku Department of Gastroenterology, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, 1-8-1 Jigyohama, Chuo-ku, Fukuoka 810-8563, Japan E-mail:
| | - Masayuki Hijioka
- Department of Gastroenterology, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Ken Kawabe
- Department of Gastroenterology, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Naohiko Harada
- Department of Gastroenterology, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Makoto Nakamuta
- Department of Gastroenterology, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Takamasa Oono
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshihiro Ogawa
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Takamatsu Y, Fujimori N, Miyagahara T, Suehiro Y, Kaku T, Kawabe K, Ohno A, Matsumoto K, Murakami M, Teramatsu K, Takeno A, Oono T, Ogawa Y. The Glasgow Prognostic Score and stricture site can predict prognosis after endoscopic duodenal stent placement for malignant gastric outlet obstruction. Sci Rep 2022; 12:9746. [PMID: 35697819 PMCID: PMC9192609 DOI: 10.1038/s41598-022-13209-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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 05/23/2022] [Indexed: 11/24/2022] Open
Abstract
Endoscopic duodenal stent (DS) placement for malignant gastric outlet obstruction (GOO) is rapidly increasing in clinical practice; however, the most suitable patient candidates for DS placement have not been determined. One hundred and thirty-five patients with GOO who underwent DS placement in three Japanese referral centers between January 2010 and October 2019 were retrospectively evaluated. Overall survival (OS) after DS placement, technical/clinical success rates, adverse events, and predictive factors affecting OS after DS placement were also analyzed. The median OS after DS placement of all patients was 81 (7–901) days. Technical and clinical success rates were 99.3% and 83.7%, respectively. The GOO Scoring System score significantly increased before and after DS placement (0.9 vs. 2.7, P < 0.001). The procedure-related complication rate was 6.0%. All 19 patients (14.1%) with stent occlusion underwent endoscopic re-intervention successfully. Multivariate analyses revealed chemotherapy after DS placement (P = 0.01), stricture site in D3 (distal part of the papilla) (P = 0.01), and a Glasgow Prognostic Score (GPS) of 0–1 before duodenal stent placement (P < 0.001) were factors significantly associated with prolonged OS. In conclusion, patients with a GPS of 0–1 and D3 stricture who are tolerant of chemotherapy are suitable candidates for DS placement.
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Affiliation(s)
- Yu Takamatsu
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Nao Fujimori
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
| | - Tsukasa Miyagahara
- Department of Gastroenterology, Nakatsu Municipal Hospital, Nakatsu, Japan
| | - Yuta Suehiro
- Department of Gastroenterology, Nakatsu Municipal Hospital, Nakatsu, Japan
| | - Toyoma Kaku
- Department of Gastroenterology, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Ken Kawabe
- Department of Gastroenterology, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Akihisa Ohno
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Kazuhide Matsumoto
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Masatoshi Murakami
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Katsuhito Teramatsu
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Ayumu Takeno
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Takamasa Oono
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Yoshihiro Ogawa
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
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Ohno A, Kaku T, Fujimori N. Balloon guidewire technique during EUS-guided hepaticogastrostomy. Endosc Ultrasound 2021:329900. [PMID: 34755704 PMCID: PMC9526101 DOI: 10.4103/eus-d-21-00067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Akihisa Ohno
- Department of Gastroenterology; Department of Gastroenterology, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Toyoma Kaku
- Department of Gastroenterology; Department of Gastroenterology, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Nao Fujimori
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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7
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Ohno A, Kaku T, Hijioka M, Harada N, Nakamuta M, Kawabe K. Argon plasma coagulation performed as a treatment for restenosis after placement of two duodenal self-expandable metallic stents. Endoscopy 2021; 53:E240-E241. [PMID: 32968983 DOI: 10.1055/a-1248-1991] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Akihisa Ohno
- Department of Gastroenterology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan.,Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Toyoma Kaku
- Department of Gastroenterology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan.,Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Masayuki Hijioka
- Department of Gastroenterology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan.,Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Naohiko Harada
- Department of Gastroenterology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan.,Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Makoto Nakamuta
- Department of Gastroenterology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan.,Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Ken Kawabe
- Department of Gastroenterology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan.,Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
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Minaga K, Takenaka M, Ogura T, Tamura T, Kuroda T, Kaku T, Uenoyama Y, Noguchi C, Nishikiori H, Imai H, Sagami R, Fujimori N, Higuchi K, Kudo M, Chiba Y, Kitano M. Endoscopic ultrasound-guided biliary drainage for malignant biliary obstruction with surgically altered anatomy: a multicenter prospective registration study. Therap Adv Gastroenterol 2020; 13:1756284820930964. [PMID: 32774461 PMCID: PMC7391429 DOI: 10.1177/1756284820930964] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 05/11/2020] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Endoscopic treatment for malignant biliary obstruction (MBO) in patients bearing surgically altered anatomy (SAA) is not well-established. Although endoscopic ultrasound-guided biliary drainage (EUS-BD) has emerged as a new treatment option for MBO, limited data are available regarding the efficacy and safety of EUS-BD in patients with SAA. We conducted a multicenter prospective registration study to evaluate the efficacy and safety of EUS-BD in this population. METHODS This study involved 10 referral centers in Japan. Patients with SAA who were scheduled to receive EUS-BD for unresectable MBO between May 2016 and September 2018 were prospectively registered. The primary endpoint was technical success and the secondary outcomes were clinical success, procedure time, procedure-related adverse events (AEs), stent patency, and overall survival. RESULTS In total, 40 patients were prospectively enrolled. The surgical reconstruction methods were gastrectomy with Roux-en-Y reconstruction (47.5%), gastrectomy with Billroth-II reconstruction (15%), pancreaticoduodenectomy (27.5%), and hepaticojejunostomy with Roux-en-Y reconstruction (10%). EUS-BD was performed for primary biliary drainage in 31 patients and for rescue biliary drainage in nine patients. Transmural stenting alone (60%), antegrade stenting alone (5%), and a combination of the two techniques (35%) were selected for patients treated with EUS-BD. Technical and clinical success rates were 100% (95% confidence interval, 91.2-100.0%) and 95% (95% confidence interval, 83.1-99.4%), respectively. Mean procedure time was 36.5 min. Early AEs were noted in six patients (15%): three self-limited bile leak, one bile peritonitis, and two pneumoperitonea. Late AEs occurred in six patients (15%): one jejunal ulcer and five stent occlusions. Stent patency rate after 3 months of survival was 95.7% (22/23). Median overall survival was 96 days. CONCLUSION EUS-BD for MBO in patients with SAA appears to be effective and safe not only as a rescue drainage technique after failed endoscopic retrograde cholangiography but also as a primary drainage technique. CLINICAL TRIAL REGISTRATION UMIN000022101.
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Affiliation(s)
- Kosuke Minaga
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Mamoru Takenaka
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Takeshi Ogura
- Second Department of Internal Medicine, Osaka Medical College, Takatsuki, Japan
| | - Takashi Tamura
- Second Department of Internal Medicine, Wakayama Medical University, Wakayama, Japan
| | - Taira Kuroda
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, To-on, Japan
| | - Toyoma Kaku
- Department of Gastroenterology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Yoshito Uenoyama
- Department of Gastroenterology, Japanese Red Cross Wakayama Medical Center, Wakayama, Japan
| | - Chishio Noguchi
- Department of Gastroenterology, Shinbeppu Hospital, Beppu, Japan
| | | | - Hajime Imai
- Department of Gastroenterology, Minami Wakayama Medical Center, Tanabe, Japan
| | - Ryota Sagami
- Department of Gastroenterology, New Tokyo Hospital, Matsudo, Chiba
| | - Nao Fujimori
- Department of Gastroenterology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Kazuhide Higuchi
- Second Department of Internal Medicine, Osaka Medical College, Takatsuki, Japan
| | - Masatoshi Kudo
- Department of Gastroenterology and Hepatology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - Yasutaka Chiba
- Clinical Research Center, Kindai University Hospital, Osaka-Sayama, Japan
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Ohno A, Kaku T, Kawabe K. Fine-needle-aspiration using forward-viewing echoendoscope for the recurrence of intraductal tubulopapillary neoplasm. Dig Endosc 2020; 32:e102-e103. [PMID: 32472606 DOI: 10.1111/den.13700] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 04/09/2020] [Accepted: 04/14/2020] [Indexed: 02/08/2023]
Affiliation(s)
- Akihisa Ohno
- Department of Gastroenterology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan.,Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Toyoma Kaku
- Department of Gastroenterology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan.,Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Ken Kawabe
- Department of Gastroenterology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan.,Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
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10
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Ito H, Wada Y, Takami Y, Ryu T, Ureshino H, Imamura H, Sasaki S, Ohno A, Hijioka M, Kaku T, Kawabe K, Kawauchi S, Saitsu H. A case of small cell neuroendocrine carcinoma of the ampulla of Vater. Surg Case Rep 2020; 6:150. [PMID: 32592083 PMCID: PMC7320127 DOI: 10.1186/s40792-020-00915-9] [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: 05/27/2020] [Accepted: 06/17/2020] [Indexed: 11/11/2022] Open
Abstract
Background Gastroenteric neuroendocrine carcinomas (NECs) account for 6.2% of gastroenteric neuroendocrine tumors (NETs), and only 1% or less of gastroenteric NETs occur in the ampulla of Vater (AoV). Clinical features of NEC of the AoV remain obscure. Case presentation A 65-year-old man visited a general practitioner because of jaundice, and an abdominal contrast-enhanced computed tomography scan revealed a tumor of 11 mm in diameter, which was enhanced in the arterial phase at the duodenal papilla, with dilation of the upstream bile duct. Gastrointestinal scope revealed an unexposed tumor of the AoV. Based on a biopsy of the site, a moderately differentiated tubular adenocarcinoma was suspected, and pancreatoduodenectomy was performed. Histopathological examination revealed dysplasia and highly proliferative small tumor cells, with solid and nodular formation at the AoV. Histological analysis showed a high mitotic count, and immunohistochemical staining revealed a Ki-67 index of 40–50% and cells positive for synaptophysin, chromogranin A, and p53. Small cell-type NEC was finally diagnosed. Four months post pancreatoduodenectomy, multiple liver metastases developed, and systemic chemotherapy was administered. Salvage liver resection for liver metastases was performed 14 months after the pancreatoduodenectomy. Unfortunately, multiple liver metastases developed 2 months after liver resection, and the patient died 18 months after the pancreatoduodenectomy. Conclusions Neuroendocrine carcinoma originating from the bile duct is very rare; therefore, in this article, we provide a review of the literature and a case report.
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Affiliation(s)
- Hiroharu Ito
- Department of Hepato-Biliary-Pancreatic Surgery, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, 1-8-1 Jigyohama, Chuo-ku, Fukuoka, 810-8563, Japan
| | - Yoshiyuki Wada
- Department of Hepato-Biliary-Pancreatic Surgery, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, 1-8-1 Jigyohama, Chuo-ku, Fukuoka, 810-8563, Japan.
| | - Yuko Takami
- Department of Hepato-Biliary-Pancreatic Surgery, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, 1-8-1 Jigyohama, Chuo-ku, Fukuoka, 810-8563, Japan
| | - Tomoki Ryu
- Department of Hepato-Biliary-Pancreatic Surgery, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, 1-8-1 Jigyohama, Chuo-ku, Fukuoka, 810-8563, Japan
| | - Hiroki Ureshino
- Department of Hepato-Biliary-Pancreatic Surgery, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, 1-8-1 Jigyohama, Chuo-ku, Fukuoka, 810-8563, Japan
| | - Hajime Imamura
- Department of Hepato-Biliary-Pancreatic Surgery, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, 1-8-1 Jigyohama, Chuo-ku, Fukuoka, 810-8563, Japan
| | - Shin Sasaki
- Department of Hepato-Biliary-Pancreatic Surgery, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, 1-8-1 Jigyohama, Chuo-ku, Fukuoka, 810-8563, Japan
| | - Akihisa Ohno
- Department of Gastroenterology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Masayuki Hijioka
- Department of Gastroenterology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Toyoma Kaku
- Department of Gastroenterology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Ken Kawabe
- Department of Gastroenterology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Shigeto Kawauchi
- Department of Pathology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Hideki Saitsu
- Department of Hepato-Biliary-Pancreatic Surgery, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, 1-8-1 Jigyohama, Chuo-ku, Fukuoka, 810-8563, Japan
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Murakami M, Kaku T, Hijioka M, Kai R, Yasumori K, Harada N, Nakamuta M, Kawabe K. [Massive biliary hemorrhage due to rupture of pseudoaneurysm after endoscopic biliary plastic stenting for pancreatic cancer]. Nihon Shokakibyo Gakkai Zasshi 2019; 116:754-763. [PMID: 31511462 DOI: 10.11405/nisshoshi.116.754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
A 51-year-old woman underwent endoscopic biliary drainage with a plastic stent for obstructive jaundice due to unresectable pancreatic head cancer. During chemotherapy following heavy ion therapy for the cancer, she presented with acute cholangitis and massive rectal bleeding. The massive hemorrhage was caused by rupture of the biliary duct due to a pseudoaneurysm in the right hepatic artery. The position of the aneurysm coincided with the liver-side end of the plastic stent. Sustained irritation of the arterial and bile duct walls by the stent was considered to have contributed to formation of the aneurysm.
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Affiliation(s)
- Masatoshi Murakami
- Department of Gastroenterology, National Hospital Organization Kyushu Medical Center.,Department of Clinical Research Center, National Hospital Organization Kyushu Medical Center
| | - Toyoma Kaku
- Department of Gastroenterology, National Hospital Organization Kyushu Medical Center.,Department of Clinical Research Center, National Hospital Organization Kyushu Medical Center
| | - Masayuki Hijioka
- Department of Gastroenterology, National Hospital Organization Kyushu Medical Center.,Department of Clinical Research Center, National Hospital Organization Kyushu Medical Center
| | - Ryozo Kai
- Department of Radiology, National Hospital Organization Kyushu Medical Center
| | - Kotaro Yasumori
- Department of Radiology, National Hospital Organization Kyushu Medical Center.,Department of Clinical Research Center, National Hospital Organization Kyushu Medical Center
| | - Naohiko Harada
- Department of Gastroenterology, National Hospital Organization Kyushu Medical Center.,Department of Clinical Research Center, National Hospital Organization Kyushu Medical Center
| | - Makoto Nakamuta
- Department of Gastroenterology, National Hospital Organization Kyushu Medical Center.,Department of Clinical Research Center, National Hospital Organization Kyushu Medical Center
| | - Ken Kawabe
- Department of Gastroenterology, National Hospital Organization Kyushu Medical Center.,Department of Clinical Research Center, National Hospital Organization Kyushu Medical Center
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Sato Y, Hara T, Takami Y, Wada Y, Ryu T, Sasaki S, Yoshitomi M, Momosaki S, Murakami M, Hijioka M, Kaku T, Kawabe K, Saitsu H. Conversion surgery for initially unresectable carcinoma of the ampulla of Vater following pathological complete response to chemotherapy: a case report. Surg Case Rep 2019; 5:122. [PMID: 31363940 PMCID: PMC6667511 DOI: 10.1186/s40792-019-0680-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 07/19/2019] [Indexed: 01/07/2023] Open
Abstract
Background Carcinoma of the ampulla of Vater with distant metastases is regarded as unresectable. Systemic chemotherapy is basically the treatment of choice for such tumors. Case presentation A 68-year-old woman was referred to our hospital and diagnosed with carcinoma of the ampulla of Vater with lymph node and multiple liver metastases. She underwent systemic chemotherapy with a combination of gemcitabine and cisplatin. After 19 months of treatment, the primary tumor and liver metastases were difficult to detect on follow-up images. Shrinkage of the enlarged lymph nodes was also confirmed. Surgical resection was performed with curative intent after a multidisciplinary meeting. Pathological examination of the resected specimen showed no residual tumors. Systemic chemotherapy achieved a pathological complete response. The postoperative course was uneventful, and the patient remained free of recurrent disease at 10 months of follow-up. Conclusion This case shows the possibility of conversion surgery after systemic chemotherapy for carcinoma of the ampulla of Vater.
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Affiliation(s)
- Yo Sato
- Department of Hepato-Biliary-Pancreatic Surgery, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, 1-8-1 Jigyohama Chuo-ku, Fukuoka, 810-8563, Japan
| | - Takanobu Hara
- Department of Hepato-Biliary-Pancreatic Surgery, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, 1-8-1 Jigyohama Chuo-ku, Fukuoka, 810-8563, Japan.
| | - Yuko Takami
- Department of Hepato-Biliary-Pancreatic Surgery, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, 1-8-1 Jigyohama Chuo-ku, Fukuoka, 810-8563, Japan
| | - Yoshiyuki Wada
- Department of Hepato-Biliary-Pancreatic Surgery, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, 1-8-1 Jigyohama Chuo-ku, Fukuoka, 810-8563, Japan
| | - Tomoki Ryu
- Department of Hepato-Biliary-Pancreatic Surgery, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, 1-8-1 Jigyohama Chuo-ku, Fukuoka, 810-8563, Japan
| | - Shin Sasaki
- Department of Hepato-Biliary-Pancreatic Surgery, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, 1-8-1 Jigyohama Chuo-ku, Fukuoka, 810-8563, Japan
| | - Munehiro Yoshitomi
- Department of Hepato-Biliary-Pancreatic Surgery, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, 1-8-1 Jigyohama Chuo-ku, Fukuoka, 810-8563, Japan
| | - Seiya Momosaki
- Department of Pathology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Masatoshi Murakami
- Department of Gastroenterology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Masayuki Hijioka
- Department of Gastroenterology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Toyoma Kaku
- Department of Gastroenterology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Ken Kawabe
- Department of Gastroenterology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Hideki Saitsu
- Department of Hepato-Biliary-Pancreatic Surgery, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, 1-8-1 Jigyohama Chuo-ku, Fukuoka, 810-8563, Japan
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13
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Sonoda K, Yahata H, Okugawa K, Kaneki E, Nakatsuki K, Naka M, Terado N, Ookubo F, Oda Y, Kaku T, Kato K. Isthmic-vaginal cytological findings after a trachelectomy for early-stage cervical cancer. Cytopathology 2016; 28:243-245. [PMID: 27650701 DOI: 10.1111/cyt.12379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- K Sonoda
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - H Yahata
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Okugawa
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - E Kaneki
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Nakatsuki
- Division of Diagnostic Pathology, Kyushu University Hospital, Fukuoka, Japan
| | - M Naka
- Division of Diagnostic Pathology, Kyushu University Hospital, Fukuoka, Japan
| | - N Terado
- Division of Diagnostic Pathology, Kyushu University Hospital, Fukuoka, Japan
| | - F Ookubo
- Division of Diagnostic Pathology, Kyushu University Hospital, Fukuoka, Japan
| | - Y Oda
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Kaku
- Department of Health Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - K Kato
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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14
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Minoda Y, Itaba S, Kaku T, Makihara K, Matsuoka J, Murao H, Hamada T, Nakamura K. [Synchronous gastrointestinal stromal tumors of the rectum and duodenum: a case report]. Nihon Shokakibyo Gakkai Zasshi 2016; 112:1991-7. [PMID: 26537326 DOI: 10.11405/nisshoshi.112.1991] [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] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
An 85-year-old woman with anemia underwent colonoscopy, which revealed a 25-mm submucosal tumor with ulceration in the lower rectum. Histological examination of a biopsy showed that the lesion was a gastrointestinal stromal tumor (GIST). Subsequent esophagogastroduodenoscopy revealed a submucosal tumor in the duodenum, and examination of a biopsy obtained by endoscopic ultrasound-guided fine-needle aspiration also confirmed that this lesion was a GIST. The rectal lesion was surgically resected to control bleeding and was confirmed as a GIST histologically. Simultaneous development of GISTs in the rectum and duodenum is extremely rare.
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Affiliation(s)
- Yosuke Minoda
- Department of Gastroenterology, Kyushu Rosai Hospital
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15
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Matsuoka J, Itaba S, Makihara Y, Murao H, Umeno N, Minoda Y, Kaku T, Kuniyoshi M, Hamada T, Nakamura K. [Three cases of pedunculated gastric hamartomatous inverted polyps resected endoscopically]. Nihon Shokakibyo Gakkai Zasshi 2016; 112:1030-6. [PMID: 26050726 DOI: 10.11405/nisshoshi.112.1030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
We report three cases of pedunculated gastric hamartomatous inverted polyps (HIPs) that were successfully treated by endoscopic polypectomy. The first case involved an 87-year-old woman with mild anemia. Esophagogastroduodenoscopy (EGD) revealed a pedunculated, reddish polyp located at the greater curvature of the upper stomach. The second case involved a 34-year-old woman in whom a pedunculated polyp was found at the gastric fundus during routine EGD. The third patient was a 59-year-old woman with epigastric discomfort. EGD revealed a pedunculated polyp in the gastric fundus. Polypectomy was successfully performed in all three cases. Histological examination revealed that the tumors comprised submucosal proliferation of cystically dilated gastric glands and hyperplastic glands;thus, we diagnosed gastric HIPs, which are rare and typically difficult to diagnose. Gastric HIPs should be considered in the differential diagnosis of elevated gastric lesions.
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Affiliation(s)
- Soichi Itaba
- Department of Gastroenterology, Kyushu Rosai Hospital, Fukuoka, Japan
| | - Toyoma Kaku
- Department of Gastroenterology, Kyushu Rosai Hospital, Fukuoka, Japan
| | - Yosuke Minoda
- Department of Gastroenterology, Kyushu Rosai Hospital, Fukuoka, Japan
| | - Hiroyuki Murao
- Department of Gastroenterology, Kyushu Rosai Hospital, Fukuoka, Japan
| | - Kazuhiko Nakamura
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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17
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Tsuruta K, Andoh F, Kurahara I, Kaku T, Fukushima J, Shimada H. A simple method for clinical application of push/pull hemodiafiltration. Contrib Nephrol 2015; 108:71-8. [PMID: 8039399 DOI: 10.1159/000423359] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- K Tsuruta
- Department of Hemodialysis, Shimada Hospital, Kumamoto, Japan
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18
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Shimokawa M, Ohki M, Kaku T. Correlation of progression-free and post-progression survival with overall survival in phase III trials of first-line chemotherapy for advanced epithelial ovarian cancer. EUR J GYNAECOL ONCOL 2015; 36:370-375. [PMID: 26390685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
PURPOSE OF INVESTIGATION The authors examined the relation between post-progression survival (PPS) and overall survival (OS) in phase III trials of first-line chemotherapy for advanced epithelial ovarian cancer. MATERIALS AND METHODS The authors partitioned OS into progression-free survival (PFS) and PPS and evaluated the relation between OS and either PFS or PPS. They also examined whether any association might be affected by the year of completion of trial enrollment. RESULTS The average PPS was longer in recent trials than in older trials (26.9 vs. 20.2 months,p = 0.0002). For all trials, PPS was strongly associated with OS (r = 0.94), whereas PFS was more moderately but still strongly correlated with OS (r = 0.83). The average proportion of median OS accounted for by median PPS significantly increased from 54.1% in older trials to 60.3% in recent trials (p = 0.0001). CONCLUSION The present findings indicate that, especially for recent trials, PPS is more highly associated than PFS with OS in first-line chemotherapy for advanced epithelial ovarian cancer.
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Toomine Y, Watanabe S, Ohishi Y, Tamiya S, Sugishima S, Kobayashi H, Oda Y, Kaku T. Endometrial metaplasia: correlation of histological and cytological specimens obtained from 103 cases undergoing hysterectomy for endometrial carcinoma. Cytopathology 2013; 25:78-85. [DOI: 10.1111/cyt.12055] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/25/2013] [Indexed: 11/29/2022]
Affiliation(s)
- Y. Toomine
- Department of Health Sciences; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - S. Watanabe
- Department of Health Sciences; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - Y. Ohishi
- Department of Health Sciences; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - S. Tamiya
- Department of Pathology; Kitakyushu Municipal Medical Center; Kitakyushu Japan
| | - S. Sugishima
- Department of Health Sciences; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - H. Kobayashi
- Department of Obstetrics and Gynecology; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - Y. Oda
- Department of Anatomic Pathology; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
| | - T. Kaku
- Department of Health Sciences; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
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20
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Yamaoka M, Hara T, Kaku T, Hitaka T, Tasaka A, Kusaka M. 298 Effect of Investigational Agent Orteronel (TAK-700) On Estrogen- and Corticoid-synthesis Pathways in Hypophysectomized Female Rats and On Serum Estradiol in Female Cynomolgus Monkeys. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)72096-8] [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: 10/27/2022]
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21
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Igarashi H, Ito T, Hisano T, Fujimori N, Niina Y, Yasuda M, Kaku T, Matsuo S, Oono T, Yoshinaga M, Sakai H, Takayanagi R. Paclitaxel-based chemotherapy for advanced pancreatic cancer after gemcitabine-based therapy failure: a case series of 5 patients. Case Rep Oncol 2011; 4:534-41. [PMID: 22187539 PMCID: PMC3242710 DOI: 10.1159/000334704] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Background/Objectives Gemcitabine (GEM) is a gold-standard chemotherapy agent for advanced pancreatic cancer. Because of the malignant character of the disease, nearly all patients show disease progression despite treatment with GEM-based chemotherapy; therefore, second-line chemotherapy may be beneficial for these patients. We report a retrospective analysis of 5 patients with advanced pancreatic cancer, treated with a paclitaxel-containing regimen as second-, third- or fourth-line chemotherapy after various therapies, such as a GEM-based regimen, S-1 regimen, and chemoradiation. We retrospectively analyzed the efficacy and adverse events, and evaluated the paclitaxel-containing regimens. A review of the literature is also discussed. Results The median overall survival from the start of salvage therapy was 10.7 months. The disease control rate of the paclitaxel-containing regimen according to RECIST criteria was 60%, including complete response in 0 patients, partial response in 3, and stable disease in 2. Two patients had malignant ascites at the start of this salvage therapy, and in both of them the ascites and clinical complaints improved. Grade 3 and 4 hematological adverse events were observed in 2 patients and 1 patient, respectively. Conclusion Salvage paclitaxel-based therapy could be beneficial to advanced pancreatic cancer patients who maintain good performance status after several chemotherapy failures.
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Affiliation(s)
- Hisato Igarashi
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan. igaras @ med.kyushu-u.ac.jp
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22
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Yoshinaga M, Taki K, Somada S, Sakiyama Y, Kubo N, Kaku T, Tsuruta S, Kusumoto T, Sakai H, Nakamura K, Takayanagi R, Muto Y. The expression of both peroxisome proliferator-activated receptor delta and cyclooxygenase-2 in tissues is associated with poor prognosis in colorectal cancer patients. Dig Dis Sci 2011; 56:1194-200. [PMID: 20824502 DOI: 10.1007/s10620-010-1389-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [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] [Received: 12/28/2009] [Accepted: 08/05/2010] [Indexed: 01/31/2023]
Abstract
BACKGROUND The role of peroxisome proliferator-activated receptor delta (PPAR δ) in the development and progression of colorectal cancer (CRC) remains controversial. AIMS We investigated the impact of PPAR δ expression in tissues on liver metastasis of CRC. METHODS We analyzed samples of primary CRC and matched normal adjacent tissues from 52 patients for the expression of PPAR δ, cyclooxygenase (COX)-2, vascular endothelial growth factor (VEGF)-A, and CXC chemokine receptor 4 (CXCR4). Correlations of the molecules expressions with clinical characteristics and prognosis of patients were studied. RESULTS The number of patients positive for PPAR δ, COX-2, CXCR4, and VEGF-A was 25, 33, 18, and 19, respectively. Among the PPAR δ (+)/COX-2 (+), PPAR δ (-)/COX-2 (+), PPAR δ (+)/COX-2 (-), and PPAR δ (-)/COX-2 (-) patient groups, PPAR δ (+)/COX-2 (+) patients had the highest incidence of liver metastasis (p<0.01). PPAR δ (+)/COX-2 (+) expression was a significant independent prognostic factor (HR=7.108, 95% CI 1.231-41.029, p=0.0283) by Cox proportional analysis. PPAR δ (+)/COX-2 (+) patients had the highest positivity for CXCR4 or VEGF-A in tissues (p<0.01). Among the patients in the CXCR4 (+)/VEGF-A (+), CXCR4 (+)/VEGF-A (-), CXCR4 (-)/VEGF-A (+), and CXCR4 (-)/VEGF-A (-) groups, CXCR4 (+)/VEGF-A (+) patients had the highest incidence of liver metastasis (p<0.01). CONCLUSIONS The expression of both PPAR δ and COX-2 in tissues may lead to liver metastasis and consequent poor prognosis in CRC patients.
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Affiliation(s)
- Masahiro Yoshinaga
- Department of Gastroenterology, Hepatology, and Nutrition, National Hospital Organization Beppu Medical Center, 1473 Uchikamado, Beppu, Oita, 874-0011, Japan.
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Kawabe T, Yoshinaga M, Kitamura Y, Murao H, Taki K, Kaku T, Yamashita S, Tsuruta S, Yoshikawa Y, Sakai H. [Recurrent advanced gastric cancer diagnosed 20 years after partial gastrectomy]. Nihon Shokakibyo Gakkai Zasshi 2011; 108:238-244. [PMID: 21307628] [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: 05/30/2023]
Abstract
A 67-year-old woman underwent partial gastrectomy (por2+sig, stage IIIA) for gastric cancer. She was admitted to our hospital because of swelling of her left neck lymph nodes 20 years after surgery. A biopsy specimen revealed poorly differentiated adenocarcinoma with signet-ring cell carcinoma. We diagnosed recurrence of gastric cancer and gave chemotherapy, but she died of myelosuppression and disseminated intravascular coagulation 2 years later. On autopsy, we examined all organs except the brain, but the primary lesion was not recognized. We concluded that this case was late recurrence after partial gastrectomy for advanced gastric cancer.
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Affiliation(s)
- Takeshi Kawabe
- Department of Gastroenterology, Beppu Medical Center, Japan.
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Yamaoka M, Hara T, Miki H, Hitaka T, Kaku T, Ito T, Kawaguchi N, Yamasaki H, Tasaka A, Kusaka M. 163 Effect of a novel, investigational 17,20-lyase inhibitor, TAK-700, on enzyme activity and serum androgen levels in human H295R cells and cynomolgus monkeys. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)71868-1] [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: 10/18/2022] Open
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Hara T, Yamaoka M, Hitaka T, Kaku T, Tasaka A, Kusaka M. 167 Effects of a novel, investigational 17,20-lyase inhibitor, TAK-700, on androgen synthesis in male rats: in vivo and in vitro specificity studies. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)71872-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Liu K, Wang W, Liu Q, Wang C, Meng Q, Zhang J, Guo X, Kaku T. OL-008 The effects of JBP485 on expression and function of Pept1 in indomethacin-induced acute intestine injury in rats and damaged Caco-2 cells. Int J Infect Dis 2010. [DOI: 10.1016/s1201-9712(10)60012-4] [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] Open
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Kang L, Zheng MQ, Morishima M, Wang Y, Kaku T, Ono K. Bepridil up-regulates cardiac Na+ channels as a long-term effect by blunting proteasome signals through inhibition of calmodulin activity. Br J Pharmacol 2009; 157:404-14. [PMID: 19371335 DOI: 10.1111/j.1476-5381.2009.00174.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND AND PURPOSE Bepridil is an anti-arrhythmic agent with anti-electrical remodelling effects that target many cardiac ion channels, including the voltage-gated Na+ channel. However, long-term effects of bepridil on the Na+ channel remain unclear. We explored the long-term effect of bepridil on the Na+ channel in isolated neonatal rat cardiomyocytes and in a heterologous expression system of human Na(v)1.5 channel. EXPERIMENTAL APPROACH Na+ currents were recorded by whole-cell voltage-clamp technique. Na+ channel message and protein were evaluated by real-time RT-PCR and Western blot analysis. KEY RESULTS Treatment of cardiomyocytes with 10 micromol.L(-1) bepridil for 24 h augmented Na+ channel current (I(Na)) in a dose- and time-dependent manner. This long-term effect of bepridil was mimicked or masked by application of W-7, a calmodulin inhibitor, but not KN93 [2-[N-(2-hydroxyethyl)-N-(4-methoxy benzenesulphonyl)]-amino-N-(4-chlorocinnamyl)-N-methylbenzylamine], a Ca2+/calmodulin-dependent kinase inhibitor. During inhibition of protein synthesis by cycloheximide, the I(Na) increase due to bepridil was larger than the increase without cycloheximide. Bepridil and W-7 significantly slowed the time course of Na(v)1.5 protein degradation in neonatal cardiomyocytes, although the mRNA levels of Na(v)1.5 were not modified. Bepridil and W-7 did not increase I(Na) any further in the presence of the proteasome inhibitor MG132 [N-[(phenylmethoxy)carbonyl]-L-leucyl-N-[(1S)-1-formyl-3-methylbutyl]-L-leucinamide]. Bepridil, W-7 and MG132 but not KN93 significantly decreased 20S proteasome activity in a concentration-dependent manner. CONCLUSIONS AND IMPLICATIONS We conclude that long-term exposure of cardiomyocytes to bepridil at therapeutic concentrations inhibits calmodulin action, which decreased degradation of the Na(v)1.5 alpha-subunit, which in turn increased Na+ current.
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Affiliation(s)
- L Kang
- Department of Pathophysiology, Oita University School of Medicine, Oita 879-5593, Japan
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Shirai K, Ishisaki A, Kaku T, Tamura M, Furuichi Y. Multipotency of clonal cells derived from swine periodontal ligament and differential regulation by fibroblast growth factor and bone morphogenetic protein. J Periodontal Res 2009; 44:238-47. [DOI: 10.1111/j.1600-0765.2008.01140.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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29
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Yasuda M, Ito T, Oono T, Kawabe K, Kaku T, Igarashi H, Nakamura T, Takayanagi R. Fractalkine and TGF-β1 levels reflect the severity of chronic pancreatitis in humans. World J Gastroenterol 2008; 14:6488-95. [PMID: 19030200 PMCID: PMC2773334 DOI: 10.3748/wjg.14.6488] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To clarify whether serum chemokine and cytokine levels can become useful biological and functional markers to assess the severity of chronic pancreatitis (CP). This study aimed at clarifying whether serum chemokine and cytokine levels can become useful biological and functional markers to assess the severity of CP.
METHODS: Serum monocyte chemoattractant protein-1 (MCP-1), transforming growth factor beta-1 (TGF-β1), and soluble type fractalkine (s-fractalkine) concentrations were examined in patients with CP (n = 109) and healthy controls (n = 116). Severity of disease was classified in patients with CP by a staging system. Relationships between stage-specific various clinical factors and serum MCP-1, TGF-β1, and s-fractalkine levels were investigated. Furthermore, 57 patients with non-alcoholic CP were similarly evaluated in order to exclude influence of alcohol intake.
RESULTS: Patients with CP showed significant higher levels of serum TGF-β1 and s-fractalkine, but not MCP-1, compared to the controls. Serum TGF-β1 in the severe stage and s-fractalkine in the mild and the severe stage of CP significantly increased compared to those of controls. However, it was observed that both TGF-β1 and s-fractalkine levels were affected by alcohol intake. In patients with non-alcoholic CP, serum TGF-β1 showed significant increase in the moderate stage of CP, and serum s-fractalkine revealed significant increase in the early stage of CP.
CONCLUSION: It is suggested that the measurement of serum F-fractalkine is useful to diagnose early-stage CP. Moreover, the combined determination of both, s-fractalkine and TGF-β1, in human sera may be helpful in evaluating the severity status of CP.
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Sasajima Y, Mikami Y, Kaku T, Kiyokawa T, Ohishi Y, Hamada T, Sasaki T, Fujita H, Moriya T, Kasamatsu T, Tsuda H. Gross features of lobular endocervical glandular hyperplasia in comparison with minimal-deviation adenocarcinoma and stage Ib endocervical-type mucinous adenocarcinoma of the uterine cervix. Histopathology 2008; 53:487-90. [DOI: 10.1111/j.1365-2559.2008.03095.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Igarashi H, Ito T, Kawabe K, Hisano T, Arita Y, Kaku T, Takayanagi R. Chemoradiotherapy with twice-weekly administration of low-dose gemcitabine for locally advanced pancreatic cancer. World J Gastroenterol 2008; 14:5311-5. [PMID: 18785284 PMCID: PMC2744062 DOI: 10.3748/wjg.14.5311] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To evaluate the chemoradiotherapy for locally advanced pancreatic cancer utilizing low dose gemcitabine as a radiation sensitizer administered twice weekly.
METHODS: We performed a retrospective analysis of chemoradiotherapy utilizing gemcitabine administered twice weekly at a dose of 40 mg/m2. After that, maintenance systemic chemotherapy with gemcitabine, at a dose of 1000 mg/m2, was administered weekly for 3 wk with 1-wk rest until disease progression or unacceptable toxicity developed.
RESULTS: Eighteen patients with locally advanced unresectable pancreatic cancer were enrolled. Three of those patients could not continue with the therapy; one patient had interstitial pneumonia during radiation therapy and two other patients showed liver metastasis or peritoneal metastasis during an early stage of the therapy. The median survival was 15.0 mo and the overall 1-year survival rate was 60%, while the median progression-free survival was 8.0 mo. The subgroup which showed the reduction of tumor development, more than 50% showed a tendency for a better prognosis; however, other parameters including age, gender and performance status did not correlate with survival. The median survival of the groups that died of liver metastasis and peritoneal metastasis were 13.0 mo and 27.7 mo, respectively.
CONCLUSION: Chemoradiotherapy with low-dose gemcitabine administered twice weekly could be effective to patients with locally advanced pancreatic cancer; however, patients developing liver metastases had a worse prognosis. Another chemoradiotherapy strategy might be needed for those patients, such as administrating one or two cycles of chemotherapy initially, followed by chemoradiotherapy for the cases with no distant metastases.
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Noguchi Y, Ono T, Kaku T, Igarashi H, Ito T. [A tumor of the pancreatic tail requiring differential diagnosis]. Nihon Shokakibyo Gakkai Zasshi 2008; 105:99-103. [PMID: 18303600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
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Ito T, Yasuda M, Kawabe K, Oono T, Kaku T, Hisano T. [Nutrition therapy for patients with chronic pancreatitis]. Nihon Shokakibyo Gakkai Zasshi 2007; 104:1722-1727. [PMID: 18057848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Affiliation(s)
- Tetsuhide Ito
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University
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Kaku T, Oono T, Zhao H, Gibo J, Kawabe K, Ito T, Takayanagi R. IS-741 attenuates local migration of monocytes and subsequent pancreatic fibrosis in experimental chronic pancreatitis induced by dibutyltin dichloride in rats. Pancreas 2007; 34:299-309. [PMID: 17414052 DOI: 10.1097/mpa.0b013e31802fc1fa] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
OBJECTIVES Chronic pancreatitis consists of excessive leukocyte infiltration and fibrosis. IS-741 has been reported to be an antiinflammatory drug through an inhibitory action on cell adhesion. In this study, we investigated whether IS-741 could inhibit the progression of pancreatic fibrosis through monocyte infiltration. Moreover, we investigated the effect of IS-741 on rat pancreatic stellate cells (PSCs). METHODS Chronic pancreatitis was induced by dibutyltin dichloride in rats. From days 7 to 28 after dibutyltin dichloride application, IS-741 or distilled water was administered. At days 14 and 28, histological [hematoxylin-eosin stain and immunostain for ED1 and [alpha] smooth muscle actin (alpha-SMA)] and biochemical evaluations (intrapancreatic amylase, protein, cytokines, chemokines, and alpha-SMA) were performed. In vitro, rat PSCs were incubated with cytokine, chemokine, and growth factor simultaneously with IS-741, and their proliferation and activation were examined. RESULTS Histologically, IS-741 inhibited pancreatic fibrosis and decreased the number of ED1- and [alpha]-SMA-positive cells. The intrapancreatic expression of cytokines, chemokine, and [alpha]-SMA were also decreased. In vitro, IS-741 has no direct effect on the proliferation, alpha-SMA expression, and collagen synthesis of PSCs. CONCLUSIONS These results suggest that IS-741 suppressed macrophage infiltration and subsequent pancreatic fibrosis and that the infiltration of monocytes into pancreas is essential for pancreatic fibrosis.
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Affiliation(s)
- Toyoma Kaku
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Abstract
OBJECTIVES Oral health status of vulnerable people in developing countries tends to be given lower priority than other health issues. Consequently, few studies have examined the oral health status of the poor and minorities in developing countries. We aim to examine the dental caries and periodontal status, and explore the risk indicators of dental caries between two ethnic groups in rural villages in southern Vietnam. METHODS We examined the caries status and its risk indicators of 150 participants (Co-Ho minority and Kinh majority) living in a hamlet of Dangphuong village in Vietnam. We also assessed periodontal status of the participants aged 14 and over by Community Periodontal Index. RESULTS We first found that dental caries were highly prevalent among both the Co-Ho minority and Kinh majority groups. Second, the higher numbers of dental caries among children with primary teeth were associated with a higher frequency of consuming sweets. Third, most people (87%) aged 14 and over had periodontal problems. Finally, the Kinh majority tended to have more dental caries than Co-Ho among people aged less than 30. CONCLUSION Oral health promotion should be considered as a part of the development programmes for vulnerable groups in Vietnam and other developing countries.
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Affiliation(s)
- M Uetani
- Department of International Community Health, The University of Tokyo, Tokyo, Japan
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Zhao HF, Ito T, Gibo J, Kawabe K, Oono T, Kaku T, Arita Y, Zhao QW, Usui M, Egashira K, Nawata H. Anti-monocyte chemoattractant protein 1 gene therapy attenuates experimental chronic pancreatitis induced by dibutyltin dichloride in rats. Gut 2005; 54:1759-67. [PMID: 16284287 PMCID: PMC1774795 DOI: 10.1136/gut.2004.049403] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.6] [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] [Revised: 03/17/2005] [Accepted: 03/29/2005] [Indexed: 12/17/2022]
Abstract
BACKGROUND Monocyte chemoattractant protein 1 (MCP-1) is a member of the C-C chemokine family and exerts strong chemoattractant activity in monocytes, macrophages, and lymphocytes. Rat pancreatic fibrosis induced by dibutyltin dichloride (DBTC) is considered to be an appropriate chronic pancreatitis model histologically and enzymatically, as has demonstrated in a previous study. AIM We examined the effect of human dominant negative inhibitor of MCP-1 (mutant MCP-1) on progression of chronic pancreatitis induced by DBTC in a rat model. METHODS We used the experimental model of chronic pancreatitis induced by DBTC in rats. Mutant MCP-1 or empty plasmid at a dose of 50 microg/body weight was administrated into rat thigh muscles on days 4, 11, and 18 after administration of DBTC. On days 14 and 28, we evaluated the effect of mutant MCP-1 morphologically and biochemically. RESULTS The mutant MCP-1 treated group inhibited early pancreatic inflammation and later pancreatic fibrosis histologically, and showed a decrease in serum MCP-1 concentration, intrapancreatic hydroxyproline, alpha-smooth muscle actin, and an increase in intrapancreatic amylase and protein content compared with the empty plasmid treated group. The mutant MCP-1 group also inhibited intrapancreatic mRNA expression of cytokines and chemokines. CONCLUSIONS : Our findings suggest that monocyte/macrophage recruitment and the systemic MCP-1 signal pathway contribute to progression of chronic pancreatitis, and that blockade of MCP-1 may suppress the development of pancreatic fibrosis.
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Affiliation(s)
- H F Zhao
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
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Kaku T, Kawano Y, Hirakawa T, Koga Y, Kobayashi H, Amada S, Ogawa S, Hagiwara T, Watanabe S, Nakano H. Cytological study of early cervical adenocarcinoma: special reference to the depth of invasion. Cytopathology 2005; 16:290-4. [PMID: 16303042 DOI: 10.1111/j.1365-2303.2005.00272.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Early cervical adenocarcinoma (ECA) with a tumour depth of <3 mm has a good prognosis. To clarify the cytological features of ECAs with depth <3 mm, these were compared with those of ECA with 3-5 mm and invasive adenocarcinoma (IA) invading the cervical wall with more than 5 mm in depth. METHODS The cervical cytological features of ECAs with depth <3 mm (14 cases) were compared with those of ECA with 3-5 mm (four cases) and IA (13 cases). Cytologically, the presence or absence of tumour diathesis, number of atypical cells, crowded cell groups, groups with glandular structures, feathering, groups with palisading borders, rosettes, clusters, cell shape and size, nuclear shape and size, nucleolar shape and size, chromatin distribution, border and character of cytoplasm, and single cell pattern were evaluated. RESULTS A tumour diathesis was seen in five of 14 ECA <3 mm in depth (36%), all four ECA with 3-5 mm (100%) and 11 of 13 IA with more than 5 mm (85%). Single cells, macronucleoli and coarsely granular chromatin pattern were less frequent in ECA of <3 mm than that in ECA with 3-5 mm and IA. The number of atypical cells and glandular structures in ECA was significantly less than that in IA. Cell crowding, feathering, palisading and rosettes were common in both ECA and IA. CONCLUSION The characteristic cytological features of ECA with depth <3 mm, having a good prognosis, were clean background, fewer single cells and macronucleoli, and less frequent coarsely granular chromatin pattern compared with those in ECA with 3-5 mm and IA. The number of atypical cells and glandular structures in ECA was significantly less than that in IA. Familiarity with the cytological features of ECA and its mimics is essential.
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Affiliation(s)
- T Kaku
- Department of Health Sciences, Faculty of Medicine, Kyushu University, Fukuoka, Japan.
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Abstract
OBJECTIVE The aim of this study was to determine whether or not we could distinguish uterine papillary serous carcinoma (UPSC) from other types of endometrial cancer by cytology. METHODS We examined the cytological findings of the endometrium from five cases with UPSC and compared them with 10 cases with endometrioid adenocarcinoma, grade 1 (G1). A morphometric analysis was performed. Cytological samples from the cervix and ascites of the patients with UPSC were also reviewed. RESULTS All five patients had FIGO stage III and IV tumours. Three patients died of the disease and two are still alive with disease. The tumour cells of UPSC tended to be shed in papillary clusters with a tumour diathesis. Psammoma bodies were seen only in UPSC. The frequency of irregular-shaped nuclei, membrane thickness and eccentric nuclei in UPSC was higher than in G1. The chromatin pattern was coarsely granular, and both anisonucleosis and bare nuclei were prominent in UPSC. Cytomorphometrically, the maximum diameter of the nuclei in UPSC was significantly greater than that in G1. The nucleoli were also more often seen in UPSC than in G1. The findings of the nuclei and nucleoli in the cervical and peritoneal fluid cytology closely resembled those in endometrial smears. The features of the cervical smears and peritoneal fluid cytology were different from those of endometrial cytology regarding clear background and small clusters of cells. CONCLUSION As the endometrial cytology findings accurately suggested the histological diagnosis of UPSC, the diagnosis of UPSC was confirmed in this study by endometrial cytology. The cytological diagnosis of UPSC should be based on the findings of tumour diathesis, psammoma bodies and papillary clusters composed of tumour cells with enlarged nuclei and numerous nucleoli.
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Affiliation(s)
- T Hagiwara
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kyushu University, Madashi, Fukuoka, Japan.
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Shimada M, Kigawa J, Nishimura R, Suzuki M, Kita T, Sugiyama T, Hiura M, Kaku T, Tsuda H, Terakawa N. Clinical characteristics of mucinous adenocarcinoma of the ovary. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.5061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- M. Shimada
- Tottori Univ, Yonago, Japan; Hyogo Medcl Ctr for Adults, Akashi, Japan; Jichi Medcl Sch, Utsunomiya, Japan; National Defense Medcl Coll, Tokorozawa, Japan; Iwate Medcl Univ Sch of Medicine, Iwate, Japan; Shikoku Cancer Ctr Hosp, Matsuyama, Japan; Kyushu Univ, Hukuoka, Japan; Osaka City Gen Hosp, Osaka, Japan
| | - J. Kigawa
- Tottori Univ, Yonago, Japan; Hyogo Medcl Ctr for Adults, Akashi, Japan; Jichi Medcl Sch, Utsunomiya, Japan; National Defense Medcl Coll, Tokorozawa, Japan; Iwate Medcl Univ Sch of Medicine, Iwate, Japan; Shikoku Cancer Ctr Hosp, Matsuyama, Japan; Kyushu Univ, Hukuoka, Japan; Osaka City Gen Hosp, Osaka, Japan
| | - R. Nishimura
- Tottori Univ, Yonago, Japan; Hyogo Medcl Ctr for Adults, Akashi, Japan; Jichi Medcl Sch, Utsunomiya, Japan; National Defense Medcl Coll, Tokorozawa, Japan; Iwate Medcl Univ Sch of Medicine, Iwate, Japan; Shikoku Cancer Ctr Hosp, Matsuyama, Japan; Kyushu Univ, Hukuoka, Japan; Osaka City Gen Hosp, Osaka, Japan
| | - M. Suzuki
- Tottori Univ, Yonago, Japan; Hyogo Medcl Ctr for Adults, Akashi, Japan; Jichi Medcl Sch, Utsunomiya, Japan; National Defense Medcl Coll, Tokorozawa, Japan; Iwate Medcl Univ Sch of Medicine, Iwate, Japan; Shikoku Cancer Ctr Hosp, Matsuyama, Japan; Kyushu Univ, Hukuoka, Japan; Osaka City Gen Hosp, Osaka, Japan
| | - T. Kita
- Tottori Univ, Yonago, Japan; Hyogo Medcl Ctr for Adults, Akashi, Japan; Jichi Medcl Sch, Utsunomiya, Japan; National Defense Medcl Coll, Tokorozawa, Japan; Iwate Medcl Univ Sch of Medicine, Iwate, Japan; Shikoku Cancer Ctr Hosp, Matsuyama, Japan; Kyushu Univ, Hukuoka, Japan; Osaka City Gen Hosp, Osaka, Japan
| | - T. Sugiyama
- Tottori Univ, Yonago, Japan; Hyogo Medcl Ctr for Adults, Akashi, Japan; Jichi Medcl Sch, Utsunomiya, Japan; National Defense Medcl Coll, Tokorozawa, Japan; Iwate Medcl Univ Sch of Medicine, Iwate, Japan; Shikoku Cancer Ctr Hosp, Matsuyama, Japan; Kyushu Univ, Hukuoka, Japan; Osaka City Gen Hosp, Osaka, Japan
| | - M. Hiura
- Tottori Univ, Yonago, Japan; Hyogo Medcl Ctr for Adults, Akashi, Japan; Jichi Medcl Sch, Utsunomiya, Japan; National Defense Medcl Coll, Tokorozawa, Japan; Iwate Medcl Univ Sch of Medicine, Iwate, Japan; Shikoku Cancer Ctr Hosp, Matsuyama, Japan; Kyushu Univ, Hukuoka, Japan; Osaka City Gen Hosp, Osaka, Japan
| | - T. Kaku
- Tottori Univ, Yonago, Japan; Hyogo Medcl Ctr for Adults, Akashi, Japan; Jichi Medcl Sch, Utsunomiya, Japan; National Defense Medcl Coll, Tokorozawa, Japan; Iwate Medcl Univ Sch of Medicine, Iwate, Japan; Shikoku Cancer Ctr Hosp, Matsuyama, Japan; Kyushu Univ, Hukuoka, Japan; Osaka City Gen Hosp, Osaka, Japan
| | - H. Tsuda
- Tottori Univ, Yonago, Japan; Hyogo Medcl Ctr for Adults, Akashi, Japan; Jichi Medcl Sch, Utsunomiya, Japan; National Defense Medcl Coll, Tokorozawa, Japan; Iwate Medcl Univ Sch of Medicine, Iwate, Japan; Shikoku Cancer Ctr Hosp, Matsuyama, Japan; Kyushu Univ, Hukuoka, Japan; Osaka City Gen Hosp, Osaka, Japan
| | - N. Terakawa
- Tottori Univ, Yonago, Japan; Hyogo Medcl Ctr for Adults, Akashi, Japan; Jichi Medcl Sch, Utsunomiya, Japan; National Defense Medcl Coll, Tokorozawa, Japan; Iwate Medcl Univ Sch of Medicine, Iwate, Japan; Shikoku Cancer Ctr Hosp, Matsuyama, Japan; Kyushu Univ, Hukuoka, Japan; Osaka City Gen Hosp, Osaka, Japan
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Hagiwara T, Mori T, Kaku T. Development of endometrial cancer following radiation therapy for cervical carcinoma. EUR J GYNAECOL ONCOL 2005; 26:191-5. [PMID: 15857027] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
The clinical and histologic findings in five cases of endometrial cancer, which developed following radiation therapy for squamous cell carcinoma of the cervix, are described. The mean age at endometrial cancer diagnosis was 69 years and average latency period from initial therapy to development of endometrial carcinoma was 13.4 years. For endometrial cancer, one patient had Stage Ib, one patient had Stage IIIa, two patients had Stage IIIc, and one patient did not undergo laparotomy. The histological types were carcinosarcoma in two patients, endometrioid adenocarcinoma, grade 3 in one patient, and clear cell carcinoma in one patient. All patients died of disease within 33 months of diagnosis. Endometrial cancers that develop after radiation treatment have a preponderance of high-risk histological subtypes, and consequently have a poor prognosis. Long-term follow-up should be mandatory for patients surviving radiation therapy for cervical cancer in order to detect and effectively treat second malignancies.
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Affiliation(s)
- T Hagiwara
- Department of Obstetrics and Gynecology, Kitakyushu Municipal Medical Center, Japan
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Sonoda K, Miyamoto S, Hirakawa T, Kaku T, Nakashima M, Watanabe T, Akazawa K, Fujita T, Nakano H. Association between RCAS1 expression and clinical outcome in uterine endometrial cancer. Br J Cancer 2003; 89:546-51. [PMID: 12888828 PMCID: PMC2394364 DOI: 10.1038/sj.bjc.6601126] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
RCAS1, which acts as a ligand for a putative receptor on immune cells such as peripheral lymphocytes and natural killer cells, is strongly expressed in human cancers. RCAS1 can induce these cells to undergo apoptotic cell death, which suggests that RCAS1 expression may prohibit the stromal reaction occurring in a tumour. To clarify the clinical significance of RCAS1 expression in uterine endometrial cancer, we analysed the association between RCAS1 expression and clinicopathologic variables by statistical methods. With the use of immunohistochemical techniques, we performed a retrospective study of RCAS1 expression in resected tumour tissue from 147 patients with uterine endometrial cancer. We evaluated the statistical correlation between RCAS1 expression and clinicopathologic variables. RCAS1 was expressed in 106 of 147 patients with uterine endometrial cancer; 30 of these 147 patients showed RCAS1 overexpression. Overexpression of RCAS1 was significantly correlated with age at surgery, stage, extent of myometrial invasion, and positive peritoneal cytologic results. Multivariate analysis revealed that RCAS1 expression and metastasis were clinically significant prognostic factors for the overall survival. These findings indicated that analysis for RCAS1 expression can provide crucial information about the clinical behaviour of uterine endometrial cancer, which may be valuable for the management of patients with this disease.
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Affiliation(s)
- K Sonoda
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka 812-8582, Japan
| | - S Miyamoto
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka 812-8582, Japan
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kyushu University, Maidashi, Higashi-ku, Fukuoka, Fukuoka 812-8582, Japan. E-mail:
| | - T Hirakawa
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka 812-8582, Japan
| | - T Kaku
- School of Health Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka 812-8582, Japan
| | - M Nakashima
- Department of Molecular Immunology, Medical Institute of Bioregulation, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka 812-8582, Japan
| | - T Watanabe
- Department of Molecular Immunology, Medical Institute of Bioregulation, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka 812-8582, Japan
| | - K Akazawa
- Department of Medical Informatics, Niigata University Medical Hospital, Niigata University, Asahimachi-dori 1-754, Niigata 951-8520, Japan
| | - T Fujita
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka 812-8582, Japan
| | - H Nakano
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka 812-8582, Japan
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Nishide H, Cho MD, Kaku T, Okamoto Y. Investigation of the reactions of the OH radical with poly(acrylic acid) and poly(methacrylic acid) in aqueous solution using the Tb3+ fluorescence probe. Macromolecules 2002. [DOI: 10.1021/ma00061a034] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Liu F, Abiko Y, Nishimura M, Kusano K, Shi S, Kaku T. Expression of inflammatory cytokines and beta-defensin 1 mRNAs in porcine epithelial rests of Malassez in vitro. Med Electron Microsc 2001; 34:174-8. [PMID: 11793193 DOI: 10.1007/s007950100012] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2001] [Accepted: 08/07/2001] [Indexed: 11/27/2022]
Abstract
In the present study, we investigated the mRNA expression of inflammatory cytokines, including interleukin (IL)-1 alpha, IL-6, IL-8, and granulocyte macrophage colony-stimulating factor (GM-CSF), and beta defensin 1 (BD-1), an antimicrobial peptide, in the epithelial rests of Malassez in vitro. A reverse transcription-polymerase chain reaction (RT-PCR) assay was performed in order to observe the expression of these mRNAs. The effect of lipopolysaccharide (LPS) on the mRNA expression was also studied by quantitative RT-PCR assay, with a LightCycler, using the double-stranded DNA dye SYBR Green I. The mRNAs of the four kinds of inflammatory cytokines and BD-1 were detected in the epithelial cells under normal culture conditions. Immunocytochemical staining showed the expression of CD14, a receptor for LPS, on the epithelial cells. The mRNA expressions of IL-1 alpha, IL-6, IL-8, and GM-CSF were upregulated by stimulation with LPS, in a dose- and time-dependent manner. Epithelial cells incubated with 1000 ng/ml of LPS for 6 h showed the most significant upregulation of the cytokine mRNAs. On the other hand, no obvious alteration of BD-1 expression by LPS stimulation was observed. The results indicated that the epithelial rests of Malassez may actively participate in the inflammatory response to bacterial infection, and that they play an important role in the defense mechanism of the radicular cyst.
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Affiliation(s)
- F Liu
- Department of Oral Pathology, School of Dentistry, Health Sciences University of Hokkaido, 1757 Kanazawa, Ishikari-Tobetsu, Hokkaido 061-0293, Japan.
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Abiko Y, Murata M, Ito Y, Taira T, Nishimura M, Arisue M, Inoue T, Shimono M, Kuboki Y, Kaku T. Immunohistochemical localization of amelogenin in human odontogenic tumors, using a polyclonal antibody against bovine amelogenin. Med Electron Microsc 2001; 34:185-9. [PMID: 11793195 DOI: 10.1007/s007950100014] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2001] [Accepted: 08/30/2001] [Indexed: 11/25/2022]
Abstract
In the present study, we investigated the localization of amelogenin in odontogenic tumors, using an anti-amelogenin polyclonal antibody. In order to make the antibody, antisera against an amelogenin fraction obtained from the enamel matrix of unerupted bovine tooth was raised in rabbits. By Western blot analysis, a main band of 25 kDa and six minor bands (6.8, 12, 18, 20, 23, and 27 kDa) were detected under nonreducing conditions. Immunoreactivity for the amelogenin was observed in ameloblasts and in the immature enamel matrix of 4-day-old rats. In odontogenic tumors, positive reactions for amelogenin were localized in limited areas in adenomatoid odontogenic tumor, calcifying odontogenic cyst, primary intraosseous carcinoma and odontoma. The strongest immunoreactions were shown in enamel matrices in odontomas. Small mineralized foci in epithelial nests showed positive reactions, and a few reactions were observed in epithelium adjacent to the mineralized foci. In calcifying odontogenic cysts, some ghost cells in the lining epithelium were strongly stained. The results indicate that the present antibody for amelogenin is useful for the determination of odontogenic tumors, especially in those in which small mineralized foci are present in the epithelial nests.
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Affiliation(s)
- Y Abiko
- Department of Oral Pathology, School of Dentistry, Health Sciences University of Hokkaido, Hokkaido 061-0293, Japan.
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Kaku T, Yoshikawa H, Tsuda H, Sakamoto A, Fukunaga M, Kuwabara Y, Hataeg M, Kodama S, Kuzuya K, Sato S, Nishimura T, Hiura M, Nakano H, Iwasaka T, Miyazaki K, Kamura T. Conservative therapy for adenocarcinoma and atypical endometrial hyperplasia of the endometrium in young women: central pathologic review and treatment outcome. Cancer Lett 2001; 167:39-48. [PMID: 11323097 DOI: 10.1016/s0304-3835(01)00462-1] [Citation(s) in RCA: 196] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Thirty-nine patients with endometrioid adenocarcinoma (EA) and atypical hyperplasia (AH) of the endometrium who received conservative treatment to preserve fertility were collected from member institutions of the Japan Gynecologic Oncology Study Group. Twenty-nine and ten were originally diagnosed with EA without myometrial invasion and AH, respectively. We performed a central pathological review to make definite diagnoses, and the diagnosis of EA in 29 cases was changed to AH in ten, complex hyperplasia in three and atypical polypoid adenomyoma in three, and AH in ten was changed to EA in one and simple hyperplasia in one. Nine of 12 women (75%) with EA and 15 of 18 women (83%) with AH had an initial response to medroxyprogesterone acetate (MPA) treatment. Two of nine responders with EA later developed relapse, and one of them had metastasis to the left obturator lymph node. Two became pregnant, and one delivered one full-term infant. One of the responders with AH had a relapse in the endometrium. Five became pregnant, and four delivered four normal infants. The young women with endometrial carcinoma localized in the endometrium who wish to preserve fertility may be treated as successfully with MPA as those with AH.
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Affiliation(s)
- T Kaku
- Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, 812-8582, Fukuoka, Japan.
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Abstract
We have recently reported that the nitric oxide (NO) donor, sodium nitroprusside (SNP), induces seizures which are associated with an increase in the basal release of aspartate and glutamate from rat hippocampus (Kaku et al., 1998). In order to determine whether taurine release occurs with SNP-induced seizures, we examined the effects of NO-related compounds, i.e., the NO trapper, diethyldithiocarbamate (DETC), the superoxide radical scavenger, dithiothreitol (DTT), the xanthine oxidase inhibitor, oxypurinol and the guanylyl cyclase inhibitor, 1H-(1,2,4)oxadiazole(4,3-a)quinoxalin-1-one (ODQ), on SNP-induced seizures and in vivo taurine release from rat hippocampus using microdialysis. Perfusion with 0.5mM SNP provoked seizures and significantly increased taurine release, with the increase in release occurring primarily during reperfusion with artificial cerebrospinal fluid lacking SNP. Perfusion with 5mM DETC significantly abolished the SNP-induced seizures and reduced taurine release during and after perfusion with the drugs. Perfusion with 1mM DTT significantly reduced both the frequency of the SNP-induced seizures and taurine release during and after perfusion with the drugs. Perfusion with 1 mM oxypurinol or 0.5 mM ODQ did not reduce the frequency of the SNP-induced seizures, but tended to decrease taurine release during and after perfusion with the drugs. These results demonstrate that SNP-induced seizures are triggered by an increase in both NO and peroxynitrite and are related to an increase in taurine release from rat hippocampus.
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Affiliation(s)
- J Hada
- Department of Physiology, Hyogo College of Medicine, Nishinomiya, Japan
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Abiko Y, Nishimura M, Rahemtulla F, Mizoguchi I, Kaku T. Immunohistochemical localization of large chondroitin sulphate proteoglycan in porcine gingival epithelia. Eur J Morphol 2001; 39:99-104. [PMID: 11778745 DOI: 10.1076/ejom.39.2.99.7372] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
In this study, we report the immunohistochemical localization of versican in healthy porcine gingival epithelia. The monoclonal antibody (mAb), 5D5, specifically recognizes core proteins of large chondroitin sulphate proteoglycans such as versican, neurocan and brevican, but not the core protein of aggrecan. Because neurocan and brevican appear to be specific to nervous tissue, the large chondroitin sulphate proteoglycans examined in this study is most likely versican. In the keratinized layer of the attached gingival epithelium, the basal and spinous cell surfaces showed intense staining for mAb 5D5. In the parakeratinized layer of the sulcus epithelium, the localization was restricted to the basal and lower spinous layers. In the junctional epithelium, intense staining was observed in one or two cell layers near the enamel surface. Immunoelectron microscopy revealed high-density depositions of 5D5 immunoreactivity on epithelial cell surfaces. At the enamel surface, 5D5 immunoreactivity was localized to the dental cuticle of the junctional epithelium but was not present in the internal basal lamina. These results suggest that versican, a large chondroitin sulphate proteoglycan, is involved in epithelial differentiation and downgrowth.
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Affiliation(s)
- Y Abiko
- Department of Oral Pathology, School of Dentistry, Health Sciences University of Hokkaido, Japan.
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Abiko Y, Suraweera AK, Nishimura M, Arakawa T, Takuma T, Mizoguchi I, Kaku T. Differential expression of human beta-defensin 2 in keratinized and non-keratinized oral epithelial lesions; immunohistochemistry and in situ hybridization. Virchows Arch 2001; 438:248-53. [PMID: 11315621 DOI: 10.1007/s004280000303] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Human beta-defensin(hBD)-2, an antimicrobial peptide, is produced by various epithelial cells. Because hBD-2 expression in the oral epithelium has not been assessed, we investigated its localization in normal oral epithelium and epithelial lesions. hBD-2 expression was studied using immunohistochemistry and in situ hybridization on formalin-fixed, paraffin-embedded tissue sections from 30 cases of squamous cell carcinoma and 6 cases of leukoplakia. Immunostaining for hBD-2 was more intense in hyperkeratinized than in ortho- or non-keratinized epithelium. In contrast, signals for hBD-2 mRNA were frequently stronger in non-keratinized epithelium than in hyper- or ortho-keratinized epithelium. The results suggest that keratinization in oral epithelium plays an important role in the biological function of hBD-2 both at the mRNA level and in the retention of the peptide in the epithelium.
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Affiliation(s)
- Y Abiko
- Department of Oral Pathology, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Hokkaido 061-0293, Japan.
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Abstract
In the present study, we examined the effects of nitric oxide (NO)-related compounds, i.e. sodium nitroprusside (NO donor), diethyldithiocarbamate (NO trapper) and dithiothreitol (superoxide radical scavenger) on release of aspartate and adenosine from rat hippocampus using electrophysiological and microdialysis methods. Perfusion with 0.05 or 0.5 mM sodium nitroprusside significantly reduced high K(+)-evoked release of aspartate during high K(+) perfusion. Perfusion with 0.5 mM sodium nitroprusside always induced seizures and significantly increased release of aspartate and adenosine during washout of sodium nitroprusside. Diethyldithiocarbamate (5 mM) reversed the effects of sodium nitroprusside. Dithiothreitol (1 mM) significantly reduced the increase in adenosine release by sodium nitroprusside. These findings indicate that adenosine release is closely related to development of seizures, which are triggered by an increase in both NO itself and in part peroxynitrite, which results in reaction with superoxide radicals.
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Affiliation(s)
- T Kaku
- Department of Physiology, Hyogo College of Medicine, 1-1, Mukogawa-cho, Nishinomiya, Hyogo 663-8501, Japan
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