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Arai S, Yamaoka Y, Shiomi A, Kagawa H, Hino H, Manabe S, Chen K, Nanishi K, Maeda C, Notsu A, Kinugasa Y. Efficacy of laparoscopic surgery for loop colostomy: a propensity-score-matched analysis. Tech Coloproctol 2023; 27:1319-1326. [PMID: 37725263 DOI: 10.1007/s10151-023-02856-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 08/09/2023] [Indexed: 09/21/2023]
Abstract
PURPOSE Colostomy is a common procedure for fecal diversion, but the optimal colostomy approach is unclear in terms of surgical outcomes and stoma-related complications. The purpose of this study was to examine the efficacy and feasibility of laparoscopic loop colostomy. METHODS This retrospective cohort study included patients who underwent loop colostomy at Shizuoka Cancer Center in Japan between April 2010 and March 2022. Patients were divided into two groups based on surgical approach: the laparoscopic (LAP) and open (OPEN) groups. Surgical outcomes and the incidences of stoma-related complications such as stomal prolapse (SP), parastomal hernia (PSH), and skin disorders (SD) were compared with and without propensity score matching. RESULTS Of the 388 eligible patients, 180 (46%) were in the LAP group and 208 (54%) were in the OPEN group. The male-to-female ratio was 5.5:4.5 in the Lap group and was 5.3:4.7 in the OPEN group, respectively. The median age was 68 years (range, 31-88 years) in the LAP group and 65 years (range, 23-93 years) in the OPEN group, respectively. The LAP group, compared with the OPEN group, had a shorter operative time and lower incidences of surgical site infection (3.9% versus 16.3%, respectively; p < 0.01) and SD (11.7% versus 24.5%, respectively; p < 0.01). There was no significant difference between the LAP and OPEN groups in the incidence of SP (17.3% versus 17.3%, respectively) or PSH (8.9% versus 6.7%, respectively). After propensity score matching, the incidences of surgical site infection and SD were significantly lower in the LAP group than in the OPEN group, while there were no significant differences in the operative time or the incidences of SP and PSH. CONCLUSION Our results suggest that laparoscopic surgery could be beneficial and feasible in loop colostomy.
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Affiliation(s)
- S Arai
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center, Shizuoka, Japan
- Department of Gastrointestinal Surgery, Tokyo Medical and Dental University, Tokyo, Japan
| | - Y Yamaoka
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center, Shizuoka, Japan.
| | - A Shiomi
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center, Shizuoka, Japan
| | - H Kagawa
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center, Shizuoka, Japan
| | - H Hino
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center, Shizuoka, Japan
| | - S Manabe
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center, Shizuoka, Japan
| | - K Chen
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center, Shizuoka, Japan
| | - K Nanishi
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center, Shizuoka, Japan
| | - C Maeda
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center, Shizuoka, Japan
| | - A Notsu
- Clinical Research Promotion Unit, Shizuoka Cancer Center, Shizuoka, Japan
| | - Y Kinugasa
- Department of Gastrointestinal Surgery, Tokyo Medical and Dental University, Tokyo, Japan
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Kato T, Yoshizawa A, Manabe S, Takanashi S, Kawamura A, Yoshizawa S, Kuwaki K. Xenoimmune Response Can Elicit Postoperative Bioprosthetic Valve Degeneration. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Nishiuchi M, Sakaki H, Dover NP, Miyahara T, Shiokawa K, Manabe S, Miyatake T, Kondo K, Kondo K, Iwata Y, Watanabe Y, Kondo K. Ion species discrimination method by linear energy transfer measurement in Fujifilm BAS-SR imaging plate. Rev Sci Instrum 2020; 91:093305. [PMID: 33003787 DOI: 10.1063/5.0016515] [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] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 09/04/2020] [Indexed: 06/11/2023]
Abstract
We have developed a novel discrimination methodology to identify ions in multispecies beams with similar charge-to-mass ratios, but different atomic numbers. After an initial separation by charge-to-mass ratios using co-linear electric and magnetic fields, individual ions can be discriminated by considering the linear energy transfer of ions irradiating a stimulable phosphor plate (Fujifilm imaging plate) by comparison with the Monte Carlo calculation. We apply the method to energetic multispecies laser-driven ion beams and use it to identify silver ions produced by the interaction between a high contrast, high intensity laser pulse; and a sub-micrometer silver foil target. We also show that this method can be used to calibrate the imaging plate for arbitrary ion species in the range of Z ≥ 6 with dE/dx > 0.1 MeV/μm without requiring individual calibration.
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Affiliation(s)
- M Nishiuchi
- Kansai Photon Science Institute (KPSI), National Institutes for Quantum and Radiological Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
| | - H Sakaki
- Kansai Photon Science Institute (KPSI), National Institutes for Quantum and Radiological Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
| | - N P Dover
- Kansai Photon Science Institute (KPSI), National Institutes for Quantum and Radiological Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
| | - T Miyahara
- Kansai Photon Science Institute (KPSI), National Institutes for Quantum and Radiological Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
| | - K Shiokawa
- Kansai Photon Science Institute (KPSI), National Institutes for Quantum and Radiological Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
| | - S Manabe
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
| | - T Miyatake
- Kansai Photon Science Institute (KPSI), National Institutes for Quantum and Radiological Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
| | - Ko Kondo
- Kansai Photon Science Institute (KPSI), National Institutes for Quantum and Radiological Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
| | - Ke Kondo
- Research Group for Radiation Materials Engineering, Nuclear Science and Engineering Center, Japan Atomic Energy Agency (JAEA), 2-4 Shirakata, Tokai-mura, Ibaraki 319-1195, Japan
| | - Y Iwata
- Department of Accelerator and Medical Physics, National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology (QST), 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan
| | - Y Watanabe
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
| | - Ki Kondo
- Kansai Photon Science Institute (KPSI), National Institutes for Quantum and Radiological Science and Technology (QST), 8-1-7 Umemidai, Kizugawa, Kyoto 619-0215, Japan
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Yamaoka Y, Shiomi A, Kagawa H, Hino H, Manabe S, Kato S, Hanaoka M. Which is more important in the management of splenic flexure colon cancer: strict central lymph node dissection or adequate bowel resection margin? Tech Coloproctol 2020; 24:873-882. [PMID: 32548666 DOI: 10.1007/s10151-020-02260-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 06/10/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND What qualifies as optimal lymph node (LN) dissection in the surgical management of splenic flexure colon cancer (SFCC) still remains controversial because few studies have evaluated the distribution of LN metastasis of SFCC. The aim of this study was to clarify detailed distribution of LN metastasis and long-term outcomes of SFCC. METHODS This retrospective study enrolled patients who had curative colectomy for primary transverse or descending colon cancer of pathological stage I, II, or III at a single high-volume cancer center between April 2002 and December 2018. The 538 eligible patients were divided into three groups: patients with SFCC (SFCC group, n = 168), patients with proximal transverse colon cancer (PTCC group, n = 290), and patients with distal descending colon cancer (DDCC group, n = 80). LNs were classified into horizontal (pericolic) and vertical (intermediate and main) nodes. Intermediate and main LN station numbers were defined according to the Japanese Society for Cancer of the Colon and Rectum classification. Distributions of LN metastasis and long-term outcomes were compared. RESULTS In the SFCC group, the mean age was 67.3 ± 10.5 years and 110 patients (65.5%) were male. The proportion of patients with LN metastasis in the intermediate or main region was significantly lower in the SFCC group (8%) than in the PTCC (37%) (p < 0.01) or DDCC group (29%) (p < 0.01) in pathological stage III patients. In the SFCC group, the incidence of pericolic LN metastasis on the oral side of tumor (43%) was significantly higher than in the PTCC group (21%) (p < 0.01) and was similar to that in the DDCC group (42%) (p = 0.51), while in the SFCC group, the incidence of pericolic LN metastasis on the anal side of tumor (17%) was lower than in the PTCC group (31%) and was also similar to that in the DDCC group (21%). There were no significant differences in disease-specific survival rates among all groups. CONCLUSIONS LN metastasis occurred mainly in the pericolic region, especially on the oral side of the tumor in SFCC. It may, therefore, be important to have an adequate bowel resection margin, especially on the oral side, for SFCC.
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Affiliation(s)
- Y Yamaoka
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center Hospital, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka, 411-8777, Japan.
| | - A Shiomi
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center Hospital, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka, 411-8777, Japan
| | - H Kagawa
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center Hospital, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka, 411-8777, Japan
| | - H Hino
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center Hospital, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka, 411-8777, Japan
| | - S Manabe
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center Hospital, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka, 411-8777, Japan
| | - S Kato
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center Hospital, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka, 411-8777, Japan
| | - M Hanaoka
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center Hospital, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka, 411-8777, Japan
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Hino H, Yamaguchi T, Kinugasa Y, Shiomi A, Kagawa H, Yamakawa Y, Numata M, Furutani A, Yamaoka Y, Manabe S, Suzuki T, Kato S. Robotic-assisted multivisceral resection for rectal cancer: short-term outcomes at a single center. Tech Coloproctol 2017; 21:879-886. [PMID: 29134385 DOI: 10.1007/s10151-017-1710-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 10/22/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND The safety and feasibility of robotic-assisted multivisceral resection for locally advanced rectal cancer remain unclear. The aim of this study was to assess the short-term outcomes of this procedure at our institution. METHODS From December 2011 to December 2016, patients who underwent robotic-assisted multivisceral resection for rectal cancer were investigated. Patient demographics, treatment characteristics, perioperative outcomes, and pathological results were evaluated retrospectively. RESULTS There were 31 patients; 17 men (54.8%) and 14 women (45.2%), with a median age of 65 years (range 40-82 years). Twenty-one patients (67.7%) had a cT4 tumor, 9 patients (29.0%) had a pT4b tumor, and all patients except one (96.8%) underwent complete resection of the primary tumor with negative resection margins. Eleven patients (35.5%) received neoadjuvant chemoradiation. The most commonly resected organ was the vaginal wall (n = 12, 38.7%), followed by the prostate (n = 10, 32.3%). Lateral lymph node dissection was performed in 20 patients (64.5%). The median operative time was 394 min (range 189-549 min), and the median blood loss was 41 mL (range 0-502 mL). None of the patients received intraoperative blood transfusions or required conversion to open. Overall, postoperative complications occurred in 11 patients (35.5%). The most frequent complication was urinary retention (n = 5, 16.1%), and none of the patients developed serious complications classified as Clavien-Dindo grades III-V. CONCLUSIONS Robotic-assisted multivisceral resection for rectal cancer is safe and technically feasible.
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Affiliation(s)
- H Hino
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center Hospital, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka, 411-8777, Japan
| | - T Yamaguchi
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center Hospital, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka, 411-8777, Japan.
| | - Y Kinugasa
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center Hospital, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka, 411-8777, Japan
| | - A Shiomi
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center Hospital, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka, 411-8777, Japan
| | - H Kagawa
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center Hospital, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka, 411-8777, Japan
| | - Y Yamakawa
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center Hospital, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka, 411-8777, Japan
| | - M Numata
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center Hospital, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka, 411-8777, Japan
| | - A Furutani
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center Hospital, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka, 411-8777, Japan
| | - Y Yamaoka
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center Hospital, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka, 411-8777, Japan
| | - S Manabe
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center Hospital, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka, 411-8777, Japan
| | - T Suzuki
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center Hospital, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka, 411-8777, Japan
| | - S Kato
- Division of Colon and Rectal Surgery, Shizuoka Cancer Center Hospital, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka, 411-8777, Japan
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Kawano H, Matsumoto T, Hamaguchi E, Manabe S, Nakagawa M, Yamada A, Fujimoto M, Tada F. Antiemetic efficacy of combined aprepitant and dexamethasone in patients at high-risk of postoperative nausea and vomiting from epidural fentanyl analgesia. Minerva Anestesiol 2015; 81:362-368. [PMID: 25220550] [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: 06/03/2023]
Abstract
BACKGROUND Postoperative opioid analgesia increases the incidence of postoperative nausea and vomiting (PONV). We investigated whether a combination of the neurokinin-1 antagonist aprepitant and dexamethasone decreases PONV incidence compared with dexamethasone alone in high-risk patients receiving continuous epidural fentanyl. METHODS Sixty nonsmoking female patients scheduled for elective knee osteoarthritis surgery were randomly allocated to receive oral aprepitant 80 mg (aprepitant+dexamethasone group, N.=30) 2 h before anesthesia induction or no oral aprepitant (dexamethasone group, N.=30). All patients received intravenous dexamethasone 8 mg immediately before anesthesia induction. Anesthesia was maintained with remifentanil and sevoflurane. Continuous infusion of epidural analgesia, including fentanyl, was provided during and after surgery. We assessed complete response (no PONV and no rescue antiemetic use), incidence of nausea and vomiting, nausea severity scale, vomiting frequency, rescue antiemetic use, and postoperative pain at 2 and 24 h after surgery. RESULTS The cumulative incidence of vomiting at 24 h was 3% in the aprepitant+dexamethasone group and 27% in the dexamethasone group (P=0.011). The incidence and frequency of vomiting in the late postoperative period was also significantly lower in the aprepitant+dexamethasone group than in the dexamethasone group. However, there were no significant group differences in the proportion of patients who experienced a complete response, the incidence and severity of nausea, and rescue antiemetic use at 24 h. CONCLUSION The combination of aprepitant and dexamethasone was more effective in preventing postoperative vomiting compared with dexamethasone alone in patients at high-risk of PONV from continuous epidural fentanyl analgesia.
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Affiliation(s)
- H Kawano
- Department of Anesthesiology and Clinical Research, National Hospital Organization Zentsuji Hospital, Zentsuji, Japan -
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Hirokawa W, Iwase A, Goto M, Takikawa S, Nagatomo Y, Nakahara T, Bayasula B, Nakamura T, Manabe S, Kikkawa F. The post-operative decline in serum anti-Mullerian hormone correlates with the bilaterality and severity of endometriosis. Hum Reprod 2011; 26:904-10. [DOI: 10.1093/humrep/der006] [Citation(s) in RCA: 144] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Manabe S, Miura Y, Takemura T, Ashida N, Nakagawa R, Mineno T, Matsumura Y. Development of ICF code selection tools for mental health care. Methods Inf Med 2010; 50:150-7. [PMID: 21170470 DOI: 10.3414/me10-01-0062] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2010] [Accepted: 10/25/2010] [Indexed: 11/09/2022]
Abstract
BACKGROUND The International Classification of Functioning, Disability and Health (ICF) has been available as a means of coding life functions but the coding process is cumbersome due to the large number of ICF codes. In the current study, we developed ICF code selection tools to support the coding of activity and participation data recorded in domiciliary mental health care reports. METHODS We first developed a search system to facilitate the selection of ICF codes by tracking back through codes' conceptual trees using a directory tool. We performed a morphological analysis on the training data set to correlate nouns with the ICF codes and obtained an analysis corpus to which numerical scores representing the frequencies of associated ICF codes for each noun were assigned. Based on the obtained corpus we developed a full-text search tool, which could simplify ICF coding relative to that performed using the directory tool. We then evaluated the usefulness of the former tool on the test data set. RESULTS Using the full-text search tool, correct ICF codes were recorded in the first candidate list for only 54.2% of sentences. However, correct ICF codes appeared on the combined candidate lists for 90.1% of sentences and on the top three candidate lists for 71.7%. In a specific case (General Tasks and Demands), 100% of the correct codes were included on the combined candidate lists. CONCLUSION We developed selection tools that effectively supported ICF coding, although it was impossible to fully automate ICF coding. This indicated that ICF codes could more effectively be applied to mental health care.
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Affiliation(s)
- S Manabe
- Department of Integrated Medicine, Medical Informatics, Osaka University Graduate School of Medicine, Suita,Osaka, Japan
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Suster Kenda N, Gergolet M, Yazbeck C, Chauvin C, Oger P, Kahn V, Gout C, Koskas M, Rougier N, Iwase A, Hirokawa W, Goto M, Nagatomo Y, Bayasula B, Kobayashi H, Kobayashi H, Nakahara T, Takikawa S, Manabe S, Kikkawa F, Colpi GM, Castiglioni M, Vaccalluzzo L, Sulpizio P, Colpi EM, Giacchetta D, Tesoriere G, Gazzano G, Rabanal A, Prieto B, Matorras R, Urquijo E, Diez S, Brouard I, Astorquiza TM. Session 43: Reproductive Surgery: Female & Male. Hum Reprod 2010. [DOI: 10.1093/humrep/de.25.s1.43] [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: 11/12/2022] Open
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Gleick PH, Adams RM, Amasino RM, Anders E, Anderson DJ, Anderson WW, Anselin LE, Arroyo MK, Asfaw B, Ayala FJ, Bax A, Bebbington AJ, Bell G, Bennett MVL, Bennetzen JL, Berenbaum MR, Berlin OB, Bjorkman PJ, Blackburn E, Blamont JE, Botchan MR, Boyer JS, Boyle EA, Branton D, Briggs SP, Briggs WR, Brill WJ, Britten RJ, Broecker WS, Brown JH, Brown PO, Brunger AT, Cairns J, Canfield DE, Carpenter SR, Carrington JC, Cashmore AR, Castilla JC, Cazenave A, Chapin FS, Ciechanover AJ, Clapham DE, Clark WC, Clayton RN, Coe MD, Conwell EM, Cowling EB, Cowling RM, Cox CS, Croteau RB, Crothers DM, Crutzen PJ, Daily GC, Dalrymple GB, Dangl JL, Darst SA, Davies DR, Davis MB, De Camilli PV, Dean C, DeFries RS, Deisenhofer J, Delmer DP, DeLong EF, DeRosier DJ, Diener TO, Dirzo R, Dixon JE, Donoghue MJ, Doolittle RF, Dunne T, Ehrlich PR, Eisenstadt SN, Eisner T, Emanuel KA, Englander SW, Ernst WG, Falkowski PG, Feher G, Ferejohn JA, Fersht A, Fischer EH, Fischer R, Flannery KV, Frank J, Frey PA, Fridovich I, Frieden C, Futuyma DJ, Gardner WR, Garrett CJR, Gilbert W, Goldberg RB, Goodenough WH, Goodman CS, Goodman M, Greengard P, Hake S, Hammel G, Hanson S, Harrison SC, Hart SR, Hartl DL, Haselkorn R, Hawkes K, Hayes JM, Hille B, Hökfelt T, House JS, Hout M, Hunten DM, Izquierdo IA, Jagendorf AT, Janzen DH, Jeanloz R, Jencks CS, Jury WA, Kaback HR, Kailath T, Kay P, Kay SA, Kennedy D, Kerr A, Kessler RC, Khush GS, Kieffer SW, Kirch PV, Kirk K, Kivelson MG, Klinman JP, Klug A, Knopoff L, Kornberg H, Kutzbach JE, Lagarias JC, Lambeck K, Landy A, Langmuir CH, Larkins BA, Le Pichon XT, Lenski RE, Leopold EB, Levin SA, Levitt M, Likens GE, Lippincott-Schwartz J, Lorand L, Lovejoy CO, Lynch M, Mabogunje AL, Malone TF, Manabe S, Marcus J, Massey DS, McWilliams JC, Medina E, Melosh HJ, Meltzer DJ, Michener CD, Miles EL, Mooney HA, Moore PB, Morel FMM, Mosley-Thompson ES, Moss B, Munk WH, Myers N, Nair GB, Nathans J, Nester EW, Nicoll RA, Novick RP, O'Connell JF, Olsen PE, Opdyke ND, Oster GF, Ostrom E, Pace NR, Paine RT, Palmiter RD, Pedlosky J, Petsko GA, Pettengill GH, Philander SG, Piperno DR, Pollard TD, Price PB, Reichard PA, Reskin BF, Ricklefs RE, Rivest RL, Roberts JD, Romney AK, Rossmann MG, Russell DW, Rutter WJ, Sabloff JA, Sagdeev RZ, Sahlins MD, Salmond A, Sanes JR, Schekman R, Schellnhuber J, Schindler DW, Schmitt J, Schneider SH, Schramm VL, Sederoff RR, Shatz CJ, Sherman F, Sidman RL, Sieh K, Simons EL, Singer BH, Singer MF, Skyrms B, Sleep NH, Smith BD, Snyder SH, Sokal RR, Spencer CS, Steitz TA, Strier KB, Südhof TC, Taylor SS, Terborgh J, Thomas DH, Thompson LG, Tjian RT, Turner MG, Uyeda S, Valentine JW, Valentine JS, Van Etten JL, van Holde KE, Vaughan M, Verba S, von Hippel PH, Wake DB, Walker A, Walker JE, Watson EB, Watson PJ, Weigel D, Wessler SR, West-Eberhard MJ, White TD, Wilson WJ, Wolfenden RV, Wood JA, Woodwell GM, Wright HE, Wu C, Wunsch C, Zoback ML. Climate change and the integrity of science. Science 2010; 328:689-90. [PMID: 20448167 DOI: 10.1126/science.328.5979.689] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Fukui T, Shimokawa T, Manabe S, Takanashi S. [Early and mid-term outcome of off-pump coronary artery bypass grafting in patients with acute myocardial infarction]. Kyobu Geka 2009; 62:36-40. [PMID: 19195184] [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: 05/27/2023]
Abstract
Coronary artery bypass grafting (CABG) is one of the options for treating acute myocardial infarction (AMI). However, the mortality of conventional CABG is reported to be high. Therefore, we assessed the outcomes of off-pump coronary artery bypass grafting (OPCAB) in patients with AMI. Between September 2004 and October 2007, 50 patients with AMI, mean age 71.7 years, were operated on. Anterior, inferior and lateral infarctions were observed in 30, 16 and 4 patients, respectively. The time from AMI to operation was <24 hours in 13 patients, <3 days in 5, <7 days in 9, <14 days in 10 and >14 days in 13. Intra-aortic balloon pumping was used in 44% of the patients. Mean number of anastomoses per patient was 4.0. There was no in-hospital mortality. Low output syndrome was observed in 1 patient, and stroke in 2. Ejection fraction of the left ventricle significantly improved after the operation (p<0.01). The graft patency rate was 97.3%. Actuarial survival was 95.9% at 3.5 years. We concluded that OPCAB is a safe and effective procedure with favorable early and midterm survival outcomes in patients with AMI.
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Affiliation(s)
- T Fukui
- Department of Cardiovascular Surgery, Sakakibara Heart Institute, Fuchu, Japan
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Watanabe T, Okada T, Okada C, Onishi T, Watanabe H, Okamoto Y, Kitamura Y, Manabe S, Matsubara S, Kageji T, Iwai A. An aspergillotic aneurysm of the internal carotid artery following allogeneic bone marrow transplantation: successful management with catheter coil embolization and long-term antifungal agents. Transpl Infect Dis 2008; 11:49-53. [PMID: 18713137 DOI: 10.1111/j.1399-3062.2008.00336.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report a case of a mycotic aneurysm of the internal carotid artery and cerebral hemorrhagic infarction resulting from Aspergillus middle ear infection in a patient with severe aplastic anemia who received unrelated bone marrow transplantation. Although a mycotic aneurysm is a rare complication, and most often fatal, the patient was successfully treated with catheter coil embolization of the internal carotid artery and long-term systemic antifungal therapy. This case emphasizes the need for the rapid diagnosis of potential fungal involvement of the vascular system and suggests the necessity for aggressive treatment, such as with the modality illustrated in this case.
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Affiliation(s)
- T Watanabe
- Department of Pediatrics, Tokushima University Hospital, Tokushima, Japan.
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13
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Broccoli AJ, Manabe S. The Effects of the Laurentide Ice Sheet on North American Climate during the Last Glacial Maximum. ACTA ACUST UNITED AC 2008. [DOI: 10.7202/032684ar] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
ABSTRACT
A climate model, consisting of an atmospheric general circulation model coupled with a simple model of the oceanic mixed layer, is used to investigate the effects of the continental ice distribution of the last glacial maximum (LGM) on North American climate. This model has previously been used to simulate the LGM climate, producing temperature changes reasonably in agreement with paleoclimatic data. The LGM distribution of continental ice according to the maximum reconstruction of HUGHES et al. (1981) is used as input to the model. In response to the incorporation of the expanded continental ice of the LGM, the model produces major changes in the climate of North America. The ice sheet exerts an orographic effect on the tropospheric flow, resulting in a splitting of the midlatitude westerlies in all seasons but summer. Winter temperatures are greatly reduced over a wide region south of the Laurentide ice sheet, although summer cooling is less extensive. An area of reduced soil moisture develops in the interior of North America just south of the ice margin. At the same time, precipitation increases in a belt extending from the extreme southeastern portion of the ice sheet eastward into the North Atlantic. Some of these findings are similar to paleoclimatic inferences based on geological evidence.
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Simazaki D, Fujiwara J, Manabe S, Matsuda M, Asami M, Kunikane S. Removal of selected pharmaceuticals by chlorination, coagulation-sedimentation and powdered activated carbon treatment. Water Sci Technol 2008; 58:1129-1135. [PMID: 18824814 DOI: 10.2166/wst.2008.472] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Removal property of nine pharmaceuticals (clofibric acid, diclofenac, fenoprofen, gemfibrozil, ibuprofen, indomethacin, ketoprofen, naproxen and propyphenazone) by chlorination, coagulation-sedimentation and powdered activated carbon treatment was examined by laboratory-scale experiments under the conditions close to actual drinking water treatment processes. Indomethacin and propyphenazone were completely degraded by chlorination within 30 minutes, but others remained around 30% (naproxen and diclofenac) or more than 80% of the initial concentration after 24 hours. A couple of unidentified peaks in a chromatogram of the chlorinated samples suggested the formation of unknown chlorination by-products. Competitive adsorption was observed when the mixed solution of the target pharmaceuticals was subjected to batch adsorption test with powdered activated carbon. Clofibric acid and ibuprofen, which were relatively less hydrophobic among the nine compounds, persisted around 60% of the initial concentration after 3 hours of contact time. Removal performance in actual drinking water treatment would become lower due to existence of other competitive substances in raw water (e.g. natural organic matter). Coagulation-sedimentation using polyaluminium chloride hardly removed most of the pharmaceuticals even under its optimal dose for turbidity removal. It is suggested that the most part of pharmaceuticals in raw water might persist in the course of conventional drinking water treatments.
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Affiliation(s)
- D Simazaki
- National Institute of Public Health, 2-3-6 Minami, Wako, Saitama, Japan.
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15
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Ueno A, Manabe S, Uchikawa Y. Acoustic feedback system with digital signal processor to alert the subject and quantitative visualization of arousal reaction induced by the sound using dynamic characteristics of saccadic eye movement: a preliminary study. Conf Proc IEEE Eng Med Biol Soc 2007; 2005:6149-52. [PMID: 17281668 DOI: 10.1109/iembs.2005.1615898] [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] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A new system has been developed to assess human alertness and to alert the subject with acoustic stimulation in accordance with the assessed level of alertness. Dynamic characteristics of saccadic eye movement (saccade: SC) were used to calculate an alertness index. Digital signal processor was adopted for the calculation. The system was tested through eye tracking tasks. The results indicated that the developed system could awaken the subject by feeding sound back to the subject. Also, arousal reaction induced by the sound was visualized quantitatively by analyzing values of the alertness index after the stimulation. These results indicate applicability of the system not only to awakening device for accident prevention, but also to a tool for investigating effects of the stimulation.
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Affiliation(s)
- A Ueno
- Department of Electronic and Computer Engineering, Tokyo Denki University, Saitama, Japan
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16
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Abstract
Previous studies have shown that high blood pressure causes chronic inflammation. Hypertensive patients are reported to have high-circulating levels of proinflammatory cytokines such as interleukin-6 (IL-6) and high sensitive C-reactive protein (hs-CRP). The pulsatility index (PI) and resistive index (RI) are used as markers of peripheral vascular resistance. In the present study, we evaluated the relationship between carotid haemodynamics and the proinflammatory cytokines, IL-6 and hs-CRP. In all, 41 patients with essential hypertension participated. The intima-media thickness (IMT), peak systolic velocity (pVs), peak diastolic velocity (pVd) and mean velocity (mV) in the common carotid artery were measured using ultrasound Doppler flow methods, and PI [(pVs-pVd)/mV] and RI [(pVs-pVd)/pVs] were calculated. Serum IL-6 and hs-CRP concentrations were measured by an enzyme-linked immunosorbent assay. IMT was positively correlated with age and pulse pressure. Both PI and RI were positively correlated with pulse pressure, IL-6 and hs-CRP. A multiple regression analysis revealed that PI and RI were independently associated with hs-CRP. These results suggested that carotid haemodynamic parameters such as PI and RI are associated with atherosclerosis and inflammation in hypertensive patients.
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Affiliation(s)
- S Manabe
- The Second Department of Internal Medicine, Ehime University School of Medicine, Toon City, Ehime, Japan
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17
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Fukuzawa K, Kogure K, Morita M, Hama S, Manabe S, Tokumura A. Enhancement of nitric oxide and superoxide generations by alpha-tocopheryl succinate and its apoptotic and anticancer effects. Biochemistry (Mosc) 2004; 69:50-7. [PMID: 14972018 DOI: 10.1023/b:biry.0000016351.77553.74] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Tocopheryl succinate (TS), a succinyl ester of alpha-tocopherol (alpha-T), has been reported to have various biological activities. In this communication, we review the current findings about TS including our recent studies of its effects on nitric oxide (NO) and superoxide (O2-) generations implicated in cancer and atherosclerosis. First, we investigated the effect of TS on NO production in vascular smooth muscle cells (VSMC) under atherosclerosis-like conditions using lipopolysaccharide (LPS) and interferon-gamma (IFN). TS enhanced LPS/IFN-dependent NO production, but alpha-T itself did not. The enhancement by TS of NO production was inhibited by alpha-T but not by antioxidants such as ascorbic acid and 2[3]-t-butyl-4-hydroxyanisole (BHA). TS enhanced the amount of protein kinase Calpha (PKCalpha) in VSMC, and PKC inhibitors inhibited TS-enhanced NO production, suggesting that the enhancing effect of TS on NO production is caused by up-regulation of PKC. Second, we found that TS induced apoptosis in VSMC associated with increase in O2- generation via NADPH-dependent oxidase. We further observed that a mouse breast cancer cell line C127I was more susceptible for TS-induced apoptosis than a mouse breast normal cell line NmuMG, and that superoxide dismutase, alpha-T, and BHA inhibited TS-caused morphological cell damage in C127I. From these results, O2- itself and/or other reactive oxygen species are assumed to associate with TS-induced cell toxicity, and antioxidative defense systems are supposed to be lowered in cancer cells. Finally, we found that intravenous injection of TS vesicles completely inhibited the growth of melanoma cells B16-F1 inoculated on the back of hairless mice and enhanced their survival time.
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Affiliation(s)
- K Fukuzawa
- Faculty of Pharmaceutical Sciences, Tokushima University, Tokushima, 770-8505, Japan.
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18
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Manabe S, Tabuchi N, Toyama M, Kuriu K, Mizuno T, Sunamori M. Measurement of ulnar flow is helpful in predicting ischemia after radial artery harvest. Thorac Cardiovasc Surg 2002; 50:325-8. [PMID: 12457306 DOI: 10.1055/s-2002-35732] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
BACKGROUND Despite a negative Allen test, some patients develop hand ischemia after radial artery harvesting. The presence of large interosseous collaterals may reduce the sensitivity of Allen test. To evaluate the combination of ulnar flow measurements and the Allen test as an effective screening technique, we performed Doppler ultrasonography during Allen's maneuver. METHODS The Allen test was used to select candidates for harvesting radial artery from 80 patients undergoing coronary bypass surgery. RESULTS Of 71 patients with a negative Allen test, one patient developed hand ischemia. This patient was one of six (7.5 %) possessing low ulnar flow levels (less than 40 ml/min/m(2) during compression of the radial artery). This low-flow group had a higher risk for ischemia of the 71 patients with a negative Allen test. The post-operative flow differed greatly from the pre-operative flow in eight patients (11.3 %), which was likely due to large sacrificed interosseous collaterals. CONCLUSION Combined use of ulnar flow measurement with the Allen test appears to increase the sensitivity of the Allen test. Neither test, however, is sufficient for a group of patients with large interosseous collaterals.
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Affiliation(s)
- S Manabe
- Department of Cardiothoracic Surgery, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
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19
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Manabe S, Ito Y. Wang resin-type linker containing a nitro group for polymer support oligosaccharide synthesis: polymer-supported glycosyl donor. Chem Pharm Bull (Tokyo) 2001; 49:1234-5. [PMID: 11558624 DOI: 10.1248/cpb.49.1234] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A nitro-introduced Wang resin-type linker for soluble and insoluble polymer support oligosaccharide synthesis is described. The linker was used for connecting glycosyl donors and polymer supports, and was completely stable under the glycosylation conditions tested. The cleavage of the linker was performed under reductive conditions without affecting the protecting groups to release disaccharides.
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Affiliation(s)
- S Manabe
- RIKEN (The Institute of Physical and Chemical Research), Wako, Saitama, Japan
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20
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Affiliation(s)
- H Ando
- RIKEN (The Institute of Physical and Chemical Research) and CREST, Japan Science and Technology Corporation (JST), 2-1 Hirosawa, Wako-shi Saitama 351-0198, Japan
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21
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Iwata H, Manabe S, Yoshida A, Pereira EM, Inoue T. The complete nucleotide sequences of L3 and S7 segments of Ibaraki virus encoding for the major inner capsid proteins, VP3 and VP7. J Vet Med Sci 2001; 63:73-8. [PMID: 11217068 DOI: 10.1292/jvms.63.73] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The complete nucleotide sequences of the genes encoding two of the major inner capsid proteins of Ibaraki virus (IBAV), belonging to epizootic hemorrhagic disease virus serotype 2 (EHDV-2) were determined. The L3 RNA segment is 2768 nucleotides in length which encodes VP3 polypeptides of 899 amino acid residues (M.W. 103 kDa). The S7 RNA segment, which encodes the VP7 core protein, is 1162 nucleotides in length and encodes 349 amino acids (M.W. 38 kDa). These RNA segments had the characteristic consensus motifs of Orbivirus RNA segments in termini, namely 5'-GUUAAA... and ...ACUUAC-3'. The comparison of the IBAV L3 and S7 sequences with those of other two EHDV-2 isolates revealed the higher homologies of 93% and 92% against EHDV-2 Australia isolate (EHDV-2AUS) and lower homologies of 80% and 81% against EHDV-2 North America isolate, respectively. The phylogenetic analysis based on L3 and S7 genes also indicated close relationships between IBAV and EHDV-2AUS.
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Affiliation(s)
- H Iwata
- Department of Veterinary Hygiene, Faculty of Agriculture, Yamaguchi University, Japan
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22
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Manabe S, Oh H, Amino K, Hata N, Yamakawa R. Ultrasound biomicroscopic analysis of posterior chamber intraocular lenses with transscleral sulcus suture. Ophthalmology 2000; 107:2172-8. [PMID: 11097591 DOI: 10.1016/s0161-6420(00)00412-7] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
OBJECTIVE To investigate the postoperative problems of intraocular lenses (IOLs) with transscleral sulcus suture. DESIGN Retrospective observational case series. PARTICIPANTS Forty-one subjects (43 eyes) were included. INTERVENTION All eyes had undergone transscleral sulcus suture of IOLs. Surgeries were all performed by surgeons in our clinic using the same technique. MAIN OUTCOME MEASURES Ultrasound biomicroscopy of the suture sites, their surrounding structures, and central anterior chamber depth. Other parameters studied included visual acuity, aqueous flare, and routine ophthalmic examinations. RESULTS Thirty-two of 86 haptics were sutured at the ciliary sulcus (CS) region and 29 at the ciliary process region, which was the space between CS and pars plicata, and 25 posterior to pars plicata. We designated the cases with at least one haptic located in the CS region as the anterior group, and the other cases as the posterior group. In the anterior group, anterior chamber depth was significantly more shallow than in the fellow eye in which IOLs were fixed in the bag (P = 0.049). There was a statistically greater incidence of IOL iris contact in the anterior group than in the posterior group (P = 0.00057). Pigment dispersion was seen in seven cases, all of which were classified as anterior group. Eyes in the posterior group had more aqueous flare than their fellow eyes (P = 0.014). Two cases, in which more than two lines of postoperative best-corrected visual acuity was lost because of macular degeneration after cystoid macular edema, showed marked elevation of aqueous flare in the sutured eyes compared with their fellow eyes. Forty-one of 86 haptics had vitreous incarceration. CONCLUSIONS This technique has many limitations: the difficulty of suturing precisely at the ciliary sulcus, IOL iris contact, pigment dispersion, high aqueous flare, and vitreous incarceration. These induce two major postoperative complications: chronic inflammation and influence on the adjacent vitreous such as vitreous incarceration. The suturing technique and instruments need to be improved to diminish such complications.
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Affiliation(s)
- S Manabe
- Department of Ophthalmology, Tenri Yorozu Hospital, Nara, Japan
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23
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Watanabe T, Furukawa T, Sharyo S, Ohashi Y, Yasuda M, Takaoka M, Manabe S. Effect of troglitazone on the liver of a Gunn rat model of genetic enzyme polymorphism. J Toxicol Sci 2000; 25:423-31. [PMID: 11201173 DOI: 10.2131/jts.25.5_423] [Citation(s) in RCA: 11] [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] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
There is a possibility that serious liver dysfunction rarely observed in diabetic patients given troglitazone is attributable to idiosyncratic abnormalities in liver drug-metabolism. In addition, the results of blood biochemical examinations in serious cases of liver dysfunction showed a tendency for a high level of total bilirubin (T-Bil) over a long period compared with other indicators of liver dysfunction. Thus, we focused on genetic variation of UDP-glucuronosyltransferases (UGTs) that are involved in the conjugation of troglitazone and bilirubin. In this study, Gunn rats, which are hereditarily deficient in the UGT1 family of UGT isozymes, and Wistar rats, the parent strain of Gunn rats, were treated with troglitazone for 3 months at dose levels of 0, 100 or 400 mg/kg to investigate two possibilities: first, whether the genetic deficiency in UGT1s induces an alteration of the metabolic profile of troglitazone followed by liver dysfunction, and second, whether the dosing of troglitazone to Gunn rats which show hyperbilirubinemia result in liver dysfunction. As a result, the metabolic profile of troglitazone in Gunn rats was much the same as that of Wistar rats, suggesting that genetic deficiencies in UGT1s did not influence the metabolic profile of troglitazone. Moreover, no elevation of blood biochemical parameters, such as asparate aminotransferase (AST) and alanine aminotransferase (ALT), or histopathological liver injuries, such as hepatocellular degeneration and necrosis, were observed in either strain of rats, and hyperbilirubinemia in Gunn rats was not aggravated by the dosing of troglitazone. These results strongly suggest that troglitazone was not metabolized by UGT1s but by other UGT isozyme (s) in rats, and that glucuronidation of troglitazone did not compete with glucuronidation of bilirubin in vivo. Thus, it is suggested that high levels of total bilirubin in patients with liver dysfunction induced by troglitazone are attributable to hypofunction due to hepatocellular injury, not to metabolic competition of bilirubin with troglitazone. Moreover, it is also suggested that the deficiency in the UGT1 family of UGT isozymes itself may not be the cause of liver dysfunction associated with troglitazone treatment.
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Affiliation(s)
- T Watanabe
- Medicinal Safety Research Laboratories, Sankyo, Co., Ltd., 717 Horikoshi, Fukuroi, Shizuoka 437-0065, Japan
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24
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Manabe S, Sunamori M, Sakamoto T, Tanaka H, Ohshima N, Hasegawa S, Watanabe M, Yoshizaki T. [Coronary arterial revascularization in dialysis patients]. Kyobu Geka 2000; 53:825-30. [PMID: 10998859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
It is recently reported that among chronic renal dialysis patients myocardial infarction accounts 7.4% of all the cause of death in Japan. In order to improve the mortality of dialysis patients the treatment of ischemic heart disease (IHD) is a major problem. We review previous reports and discuss about the treatment of IHD in dialysis patients. The collected data from the previous reports written about CABG in dialysis patients shows that the mortality of CABG is 7.8% (30/387), the probability of perioperative myocardial infarction (PMI) 8.6% (21/243), brain infarction 1.6% (4/243) and major infection 5.8% (14/243). 3-year and 5-year mortality rate after CABG is reported to be 69-80% and 48-56%, respectively. The result of CABG is excellent and shows that this procedure improves the mortality of dialysis patients with IHD. The procedural mortality of PTCA is 5.6% (8/143), the probability of PMI is 7% (10/143). Many reports shows the high probability of the recurrence of chest pain (60-86%). This procedure when performed in dialysis patients is incomplete because of the calcification of the coronary artery. Even among the dialysis patients it is preferable to perform CABG positively.
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Affiliation(s)
- S Manabe
- Department of Cardiothoracic Surgery, School of Medicine, Tokyo Medical and Dental University, Japan
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25
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Abstract
As part of a program to explore the structural requirement of N-glycans in the carbohydrate-mediated biological interactions, N-linked pentasaccharide core structure was stereochemically modified in terms of glycosidic linkage. Three isomers, alpha-D-Man-(1-->3)-[alpha-D-Man-(1-->6)]-alpha-D-Man-(1-->4)-beta-D-GlcNAc-(1-->4)-beta-D-GlcNAc-L-Asn, alpha-D-Man-(1-->3)-[alpha-D-Man-(1-->6)]-beta-D-Man-(1-->4)-alpha-D-GlcNAc-(1-->4)-beta-D-GlcNAc-L-Asn, and alpha-D-Man-(1-->3)-[alpha-D-man-(1-->6)]-alpha-D-Man-(1-->4)-alpha-D-GlcNAc-(1-->4)-beta-D-GlcNAc-L-Asn, were synthesized. Synthesis of the pentasaccharide with natural linkage is also described.
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Affiliation(s)
- M Takatani
- The Institute of Physical and Chemical Research (RIKEN), Wako-shi, Saitama, Japan
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26
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Sun-Wada GH, Manabe S, Yoshimizu T, Yamaguchi C, Oka T, Wada Y, Futai M. Upstream regions directing heart-specific expression of the GATA6 gene during mouse early development. J Biochem 2000; 127:703-9. [PMID: 10739965 DOI: 10.1093/oxfordjournals.jbchem.a022660] [Citation(s) in RCA: 12] [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] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The expression of murine transcription factor GATA6 is restricted to tissues including the heart and gastrointestinal systems during embryogenesis, and is maintained throughout postnatal life. We have characterized the 5' upstream region (6.4 kb) of the mouse GATA6 gene, and identified two closely spaced transcription initiation sites. The flanking sequence lacks a typical TATA-box, and is rich in guanine and cytosine. The role of the 5' upstream region was examined using the lacZ reporter gene in transgenic mice. A construct containing the 5' flanking sequence (4.9 kb), untranslated exon 1 and 1.3 kb intron 1 could drive the gene expression in the embryonic and adult heart regions. Weak expression was also observed in the stomach, liver, and bronchial arch in addition to the cardiac region. Deletion of the 5' upstream region ( approximately 1.2 kb) or intron 1 abolished all this expression, indicating that at least two cis-acting control elements are necessary for heart-specific expression of GATA6 in vivo.
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Affiliation(s)
- G H Sun-Wada
- Division of Biological Sciences, The Institute of Scientific and Industrial Research, Osaka University, CREST of the Japan Science and Technology Corporation, Ibaraki, Osaka 567-0047, Japan
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27
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Furukawa T, Manabe S, Watanabe T, Sharyo S, Mori Y. Sex difference in the daily rhythm of hepatic P450 monooxygenase activities in rats is regulated by growth hormone release. Toxicol Appl Pharmacol 1999; 161:219-24. [PMID: 10620478 DOI: 10.1006/taap.1999.8808] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Daily fluctuations have been observed in the hepatic cytochrome P450 monooxygenase activities of rodents. It was confirmed in our previous study that the P450 activities assessed by measurement of 7-alkoxycoumarin O-dealkylase (ACD) showed obvious daily fluctuations in male rats with high values during the dark period. However, there is still very little information about the daily fluctuation of P450 activities in female rats. In the first experiment of the present study, the daily fluctuation of ACD activities in female rats was examined. The results indicated the absence of any apparent daily fluctuation in the hepatic ACD activities of the females, so the study confirmed a sex difference in the daily rhythm of the ACD activities. In the second experiment using hypophysectomized (Hpx) rats, it was investigated whether this sex difference in daily rhythm was attributable to growth hormone (GH) release, an activity which is known to affect the sex difference in the expression of P450 isoforms. It was found that the Hpx rats, given subcutaneous injections of GH twice during the light period to mimic a male pattern of GH secretion, showed obvious light-dark fluctuation in ACD activities with high values in the dark period, and similar results were obtained in sham-operated males. Conversely, the Hpx rats given continuous infusion of GH to mimic a female pattern of GH secretion did not show the light-dark fluctuation in ACD activities, and similar results were obtained in sham-operated females. In conclusion, there is a sex difference in the daily rhythm of the hepatic P450 activities in rats and this difference is apparently influenced by the difference in the patterns of GH secretions.
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Affiliation(s)
- T Furukawa
- Medicinal Safety Research Laboratories, Sankyo Co., Ltd., Shizuoka, Japan.
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28
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Innami R, Nagaoka H, Oonuki M, Manabe S. Diffuse myocardial infarction caused by isolated bilateral coronary ostial stenoses in a young woman: report of a case. Surg Today 1999; 29:1120-4. [PMID: 10554343 DOI: 10.1007/s005950050657] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A young Japanese woman who appeared to be free from any coronary risk factors was admitted to a local hospital with chest pain. Serological tests showed no evidence of inflammation; however, an electrocardiogram revealed diffuse myocardial ischemia and a coronary angiogram demonstrated isolated bilateral coronary ostial stenoses. Moreover, her serum creatine phosphokinase level was high. On the day following admission, the patient developed severe cardiogenic shock, and she was transferred to our hospital where emergency coronary artery bypass grafting with the saphenous veins was performed using retrograde tepid blood cardioplegia. Recovery of cardiac function was immediate and her postoperative course was uneventful. We suspect that fibromuscular dysplasia was the most likely cause of the ostial stenoses in this patient.
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Affiliation(s)
- R Innami
- Department of Thoracic Surgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8519, Japan
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29
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Furukawa T, Manabe S, Watanabe T, Sehata S, Sharyo S, Okada T, Mori Y. Daily fluctuation of hepatic P450 monooxygenase activities in male rats is controlled by the suprachiasmatic nucleus but remains unaffected by adrenal hormones. Arch Toxicol 1999; 73:367-72. [PMID: 10550478 DOI: 10.1007/s002040050675] [Citation(s) in RCA: 13] [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] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Hepatic P450 monooxygenase activities, which strongly influence the efficacy and/or toxicity of drugs, are known to fluctuate daily. We also know that the P450 activities assessed by measurement of 7-alkoxycoumarin O-dealkylase (ACD) activities fluctuate daily, with apparently high values during the dark period in male rats. However, there is little knowledge about the factors that regulate daily fluctuation of P450 monooxygenase activities. In the present study using rats, we induced lesions in the suprachiasmatic nucleus (SCN) of the brain, the known site of the body's internal clock, and examined the effects on the daily fluctuation of the ACD activities to clarify the relationship between the SCN and the daily fluctuation of P450 monooxygenase activities. In addition, adrenalectomy was performed to re-evaluate the influence of adrenal hormones on the P450 activities. Our results indicated that daily fluctuations of the hepatic ACD activities were completely eliminated in the SCN-lesioned rats. However, the ACD activities in the adrenalectomized rats showed apparent daily fluctuations with high values during the dark period and low values during the light period. Therefore, this study demonstrated that the daily fluctuation of the hepatic P450 monooxygenase activities in male rats is controlled by the SCN but remains unaffected by the adrenal hormones.
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Affiliation(s)
- T Furukawa
- Laboratory Animal Science and Toxicology Laboratories, Sankyo Co., Ltd., 717 Horikoshi, Fukuroi, Shizuoka 437-0065, Japan.
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Furukawa T, Manabe S, Ohashi Y, Sharyo S, Kimura K, Mori Y. Daily fluctuation of 7-alkoxycoumarin O-dealkylase activities in the liver of male F344 rats under ad libitum-feeding or fasting condition. Toxicol Lett 1999; 108:11-6. [PMID: 10472805 DOI: 10.1016/s0378-4274(99)00065-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
It has been reported that drug metabolizing enzyme activities in the liver fluctuate daily, though the daily fluctuation of 7-alkoxycoumarin O-dealkylase (ACD) activities catalyzed by P450 has not been examined. The ACD activities are known to be useful to clarify the extensive induction of P450-dependent oxygenases. In the present study, the hepatic ACD activities, as well as P450 content, were investigated periodically in male F344 rats under ad libitum-feeding or fasting condition. The ACD activities in ad libitum-fed rats were found to follow obvious daily fluctuations with high values during dark periods and with low values during light periods. This agreed with the other previous results of drug metabolizing enzyme activities measured with other substrates. Because the daily fluctuation was also observed in fasted rats, the fluctuation in ACD activities was clearly not affected by feeding, an external factor. P450 content, however, showed different fluctuation patterns from the ACD activities. This suggests that the fluctuation of ACD activities might not be related to the quantitative variation of P450 proteins.
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Affiliation(s)
- T Furukawa
- Laboratory Animal Science and Toxicology Laboratories, Sankyo Co., Ltd., Shizuoka, Japan.
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Totsuka S, Watanabe T, Koyanagi F, Tanaka K, Yasuda M, Manabe S. Increase in urinary excretion of 6beta-hydroxycortisol in common marmosets as a marker of hepatic CYP3A induction. Arch Toxicol 1999; 73:203-7. [PMID: 10463384 DOI: 10.1007/s002040050607] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The ratio of urinary 6beta-hydroxycortisol (6beta-OHF) to free cortisol (F), i.e., the 6beta-OHF/F ratio, has been reported to be a specific marker for human CYP3A induction by in vivo studies of human subjects. In the development of drugs, it is quite beneficial to predict human CYP3A induction in preclinical safety studies using urine samples from experimental animals. We examined the 6beta-OHF/F ratio in urine of common marmosets administered with rifampicin, a potent inducer of CYP3A, to evaluate the usefulness of common marmosets for the prediction of CYP3A induction. Rifampicin was orally administered to three groups of four male common marmosets at doses of 0, 10, and 20 mg/kg per day for 4 days. Amounts of 6beta-OHF and F in urine samples were determined by means of high-performance liquid chromatography (HPLC) during the experimental period. One day after the 4th dosing, animals were killed, and P450 contents and P450-catalyzed. 7-alkoxycoumarin O-dealkylase (ACD) activities in the liver were measured. Western blot analysis of liver microsomes was also performed using anti-rat P450 (CYP1A1, 2B1/2, 3A, and 4A) antibodies. The results indicated elevations in the 6beta-OHF/F ratios that were dependent on both the dosing period and dose levels adopted. The ratios on day 4 reached 4.7- and 5.3-fold the pre-administration values in the 10 and 20 mg/kg per day groups, respectively. P450 contents and ACD activities were also elevated in all of the groups. Western blot analysis showed specific increases in the protein which cross-reacts with anti-rat CYP3A antibody in all of the groups. Furthermore, the 6beta-OHF/F ratio was well correlated with the CYP3A contents in liver (r = 0.906). These results indicated that increase in urinary excretion of 6beta-OHF is a specific marker of the induction of hepatic CYP3A in common marmosets just as in humans. Consequently, the present study suggested that human CYP3A induction elicited by chemical agents can be predicted in common marmosets by measuring the urinary excretion of 6beta-OHF.
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Affiliation(s)
- S Totsuka
- Laboratory Animal Science and Toxicology Laboratories, Sankyo Co., Ltd., Fukuroi, Shizuoka, Japan
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Nakajima K, Maeno Y, Honda A, Yokoyama K, Tooriyama T, Manabe S. Effectiveness of a vaccine against red sea bream iridoviral disease in a field trial test. Dis Aquat Organ 1999; 36:73-75. [PMID: 10349554 DOI: 10.3354/dao036073] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Since 1990, red sea bream iridovirus (RSIV) has caused high mortalities in the summertime in cultured red sea bream Pagrus major in southwest Japan. To establish control measures for red sea bream iridoviral disease (RSIVD), the effectiveness of a formalin-killed viral vaccine was evaluated in a field trial. Two groups each consisting of 1000 juvenile red sea bream were either intraperitoneally inoculated with vaccine (vaccinated group) or were not vaccinated (non-vaccinated group). After vaccination, the fish were held for 1 wk, then transferred to a marine net pen and observed for 12 wk. The cumulative mortalities caused by RSIVD in the vaccinated group or control group were 19.2 and 68.5%, respectively. Additionally, the presence of virus antigen in the spleen was investigated and body weight was measured 6 and 12 wk post vaccination. In the vaccinated group, viral antigen was not detected. The increase in body weight of vaccinated fish was significantly (p < 0.05) greater than that of control fish. These results suggest that the vaccine against RSIVD was effective in 1 field trial.
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Affiliation(s)
- K Nakajima
- National Research Institute of Aquaculture, Fisheries Agency, Mie, Japan.
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Sato Y, Manabe S, Kuno H, Oizumi K. Amelioration of osteopenia and hypovitaminosis D by 1alpha-hydroxyvitamin D3 in elderly patients with Parkinson's disease. J Neurol Neurosurg Psychiatry 1999; 66:64-8. [PMID: 9886454 PMCID: PMC1736147 DOI: 10.1136/jnnp.66.1.64] [Citation(s) in RCA: 91] [Impact Index Per Article: 3.6] [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] [Indexed: 11/03/2022]
Abstract
OBJECTIVES A high prevalence of hip and other fractures in elderly patients with Parkinson's disease has been linked to reduced bone mass arising from a defect of renal synthesis of 1, 25-dihydroxyvitamin D (1, 25-[OH]2D). Treatment with 1alpha-hydroxyvitamin D3 (1alpha(OH)D3; an active form of vitamin D) was evaluated for maintaining bone mass and reducing the incidence of hip and other nonvertebral fractures in patients with Parkinson's disease. METHODS In a double blind, randomised trial, 86 elderly patients with Parkinson's disease (mean Hoehn and Yahr stage, 3; mean age 70.6 years) were randomised to receive either 1 microg 1alpha(OH)D3 daily (treatment group, n=43) or a placebo (n=43) for 18 months. Bone mineral densities in the second metacarpals were determined by computed radiographic densitometry. Serum bone turnover indices were measured serially, and incidence of nonvertebral fractures was recorded. RESULTS Bone mineral densities decreased 1.2% in the treatment group compared with 6.7% in the placebo group during 18 months (p<0.0001). At baseline in both groups, the serum concentration of 1, 25-[OH]2D was reduced. Parathyroid hormone was abnormally increased in 15 patients (17%) and correlated negatively with serum 25-hydroxyvitamin D, indicating compensatory hyperparathyroidism. Eight patients sustained fractures (six at the hip and two at other sites) in the placebo group, and one hip fracture occurred among treated patients (odds ratio 9.8; p=0.0028). CONCLUSION By increasing serum 1, 25-[OH]2D concentrations, treatment with 1alpha(OH)D3 can reduce the risk of hip and other non-vertebral fractures in osteoporotic elderly patients with Parkinson's disease by slowing the loss of bone mineral densities.
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Affiliation(s)
- Y Sato
- Department of Neurology, Futase Social Insurance Hospital, Iizuka, Japan.
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Abstract
Research efforts directed at the development of methodologies effective for solid-phase synthesis of oligosaccharides have resulted in a number of impressive achievements. In addition, closely related technologies, such as soluble polymer-supported synthesis and fluorous synthesis of the same class of molecules, have proved to be quite promising.
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Affiliation(s)
- Y Ito
- The Institute of Physical and Chemical Research 2-1 Hirosawa Wakoshi Saitama 351-0198 Japan.
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Tozawa Y, Ueki A, Manabe S, Matsushima K. Stress-induced increase in urinary isatin excretion in rats: reversal by both dexamethasone and alpha-methyl-P-tyrosine. Biochem Pharmacol 1998; 56:1041-6. [PMID: 9776316 DOI: 10.1016/s0006-2952(98)00199-3] [Citation(s) in RCA: 29] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The effects of acute food deprivation and acute cold exposure on 24-hr urinary isatin excretion in rats and a mechanism responsible for changes in urinary isatin excretion during stress were investigated. This is the first study to demonstrate by HPLC that urinary isatin excretion is increased by stress. Both types of stress induced a marked increase in urinary isatin excretion during the 24 hr following the initiation of stress. Dexamethasone administration prevented the increase in urinary isatin excretion induced by both of the different types of stress. Furthermore, administration of either the benzodiazepine receptor agonist diazepam or the tyrosine hydroxylase inhibitor alpha-methyl-p-tyrosine prevented the increase in urinary isatin excretion induced by acute food deprivation, whereas the dopamine-beta-hydroxylase inhibitor diethyldithiocarbamate proved ineffective. These observations suggest that during stress, activated catecholamine-synthesizing cells and corticotropin-releasing factor cells, both of which play central roles in stress responses, may be involved in total isatin production. Isatin may serve as an endogenously generated marker for some types of stress.
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Affiliation(s)
- Y Tozawa
- Department of Molecular Preventive Medicine, School of Medicine, University of Tokyo, Japan
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36
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Manabe S, Matsushita H. [Present and future cancer risk assessment of carcinogenic heterocyclic amines in humans]. Nihon Eiseigaku Zasshi 1998; 53:521-8. [PMID: 9916489 DOI: 10.1265/jjh.53.521] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Heterocyclic amines are formed during high temperature cooking of foods such as meat and fish. Although heterocyclic amines are known mutagens and some of them are shown to be carcinogenic to experimental animals, the carcinogenic potential of heterocyclic amines in humans has yet to be established. The most important criteria in determining the relationship between heterocyclic amines and human cancers are the strength and consistency of the association, the presence of a dose-response relationship, and the biological plausibility of heterocyclic amines being human carcinogens. To date, there are too few data to evaluate the strength, consistency, and dose response of this relationship in humans. To investigate cancer risk posed by heterocyclic amines to humans, an accurate estimation of exposure is needed. Validated methods for exposure assessment of heterocyclic amines are not available. At present, without any available long-term biomarkers of heterocyclic amines, it is crucial to improve exposure assessment. Most studies concerning the cancer risk assessment of heterocyclic amines are based on the exposure levels calculated only by information on the consumption of cooked foods and the mean levels of heterocyclic amines in cooked foods. Inaccurate exposure assessment can lead to incorrect cancer risk. This review describes the present and future problems of the exposure assessment and cancer risk assessment of heterocyclic amines.
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Affiliation(s)
- S Manabe
- Department of Hygiene and Preventive Medicine, University of Tokyo, Japan
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Ashinya M, Yutaka M, Manabe S, Matsushita H, Okamoto K, Yagyu K, Koie T, Suzuki K, Kudo S, Yamada M, Liu Q, Nakaji S, Sugawara K, Fan J, Aoshima K, Katoh T, Teranishi H, Kasuya M. Abstracts from Japanese journal of hygiene (Nihon Eiseigaku Zasshi) vol. no.3. Environ Health Prev Med 1998; 3:175-9. [PMID: 21432499 DOI: 10.1007/bf02931710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Affiliation(s)
- M Ashinya
- Department of Preventive Medicine and Community Health, University of Occupational and Environmental Health, Kitakyushu
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38
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Shirachi M, Sata M, Suzuki H, Fukuizumi K, Tanikawa K, Itoh Y, Mizumoto T, Kondoh S, Kasahara M, Manabe S. Evaluation of third generation anti-HCV test kit (SYNPEP HCV-EIA II) using sera of inhabitants from HCV hyperendemic area. Kurume Med J 1998; 45:81-5. [PMID: 9658756 DOI: 10.2739/kurumemedj.45.81] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We examined the characteristics and usefulness of a third generation anti-HCV test kit, SYNPEP HCV-EIA II (Kyokuto Pharmaceutical Inc., Tokyo, Japan). The sera of inhabitants from a hepatitis C virus (HCV) hyperendemic area were used. The kit had even or more anti-HCV detection sensitivity and reproducibility than ORTHO HCV III ELISA Test System (Ortho-Clinical Diagnostic K.K., Tokyo, Japan) or HCV PHA 2nd Generation (Dinabot Co., Ltd., Tokyo, Japan). SYNPEP HCV-EIA II needed less total reaction time than other EIA kits, resulting in a simple procedure. Also, HCV RNA was detected in 90% of subjects who had a 7.5 or greater cut-off index (COI) of SYNPEP HCV-EIA II kit. In conclusion, SYNPEP HCV-EIA II require cheap cost and simple procedure and it could be applied to mass screening to find out HCV RNA positive persons who may need clinical care.
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Affiliation(s)
- M Shirachi
- Second Department of Medicine, Kurume University School of Medicine, Japan
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Sehata S, Manabe S, Takaoka M. Telomere length of regenerating proximal tubular epithelial cells in the rat kidney. Toxicol Lett 1998. [DOI: 10.1016/s0378-4274(98)80232-4] [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: 10/18/2022]
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Nagaoka H, Innami R, Ohnuki M, Hirooka K, Manabe S, Itoh F, Amemia H, Fujiwara H. [Emergency coronary artery bypass grafting in elderly patients]. Kyobu Geka 1997; 50:614-7. [PMID: 9251478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Emergency coronary artery bypass grafting (CABG) in elderly patients still remains to be a therapeutic challenge for cardiac surgeons. The purpose of this study was to review the operative results of our emergency CABG in elderly patients and evaluate it's problems comparing with younger patients. Consecutive forty-three patients underwent emergency CABG for the past ten years were divided into two groups, that is 13 patients aged 75 years or older (group 1) and 30 younger than 75 years old (group 2). There were three in-hospital deaths (mortality rate: 23.1%) in group 1 and three (10.0%) in group 2. The lowest postoperative Ccr (19.1 +/- 8.9 ml/ min) in group 1 was significantly lower (p < 0.02) than that (35.6 +/- 14.4 ml/min) in group 2. Respiratory Index on the first postoperative day, which indicates lung dysfunction when it comes up to 2.0 or more, showed 2.65 in mean value in group 1 compared with 1.31 in group 2 (p < 0.05). Severe infections like sepsis were developed in 4 patients (30.8%) in group 1 and 2 (6.7%) in group 2 (p < 0.05). In conclusion, it was clearly suggested that kidney protection by earlier myocardial revascularization, prevention of severe infection and earlier introduction of respiratory physiotherapy in the postoperative period were advisable to improve the operative results of emergency CABG in elderly patients.
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Affiliation(s)
- H Nagaoka
- Cardiovascular Center, Tsuchiura Kyodo General Hospital, Japan
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41
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Manabe S, Gao Q, Yuan J, Takahashi T, Ueki A. Determination of isatin in urine and plasma by high-performance liquid chromatography. J Chromatogr B Biomed Sci Appl 1997; 691:197-202. [PMID: 9140775 DOI: 10.1016/s0378-4347(96)00409-4] [Citation(s) in RCA: 29] [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] [Indexed: 02/04/2023]
Abstract
A method for the detection and determination of isatin (indole-2,3-dione) in urine and plasma by high-performance liquid chromatography has been developed. It consists of a two-step purification using two different columns with UV detection. With this method, we have reconfirmed that isatin is present in human urine. We have also demonstrated that isatin is present in human plasma and that the isatin levels in spot urine samples reflect the plasma isatin levels. In the present report we describe a rapid and sensitive means of determining urine and plasma isatin for laboratories equipped with a high-performance liquid chromatography system.
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Affiliation(s)
- S Manabe
- Department of Hygiene and Preventive Medicine, Faculty of Medicine, University of Tokyo, Japan
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Suzuki H, Manabe S, Wada O, Crawford MA. Rapid incorporation of docosahexaenoic acid from dietary sources into brain microsomal, synaptosomal and mitochondrial membranes in adult mice. INT J VITAM NUTR RES 1997; 67:272-8. [PMID: 9285258] [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: 02/05/2023]
Abstract
This study examined the incorporation of docosahexaenoic acid (DHA) from several dietary sources into the brain tissue and intracellular organelles in mice which had been fed a 5% palm oil (low n-3 fatty acid level) diet for 8 or 11 weeks. The percentages of DHA in the tissues of mice fed 5% representative oils for 30 days or 5% purified n-3 fatty acid diets for 6 days were analyzed using gas chromatography. The percentage of DHA in the brain was ranked in the following order: the salmon oil diet group > the sardine oil diet group > > the perilla oil diet group > > the lard and palm oil diet groups for the 30 day feeding trial; and the DHA diet group > > the eicosapentaenoic acid and alpha-linolenic acid diet groups for the 6 day feeding trial. The percentage of arachidonic acid showed a more dramatic decrease than that of docosapentaenoic acid. These results reflected the plasma fatty acid concentrations, but were not as pronounced as the changes observed in the plasma. The majority of the DHA incorporated into the brain was recovered in microsomal, synaptosomal, and mitochondrial fractions separated by density gradient centrifugation. These membrane fractions took up DHA within several days. These results suggest that the intake of DHA itself increases the DHA level of brain membranes more rapidly than intake of the precursors in animals fed a low n-3 fatty acid level diet.
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Affiliation(s)
- H Suzuki
- National Food Research Institute, Tsukuba, Japan
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Yamamoto S, Mitsumori K, Kodama Y, Matsunuma N, Manabe S, Okamiya H, Suzuki H, Fukuda T, Sakamaki Y, Sunaga M, Nomura G, Hioki K, Wakana S, Nomura T, Hayashi Y. Rapid induction of more malignant tumors by various genotoxic carcinogens in transgenic mice harboring a human prototype c-Ha-ras gene than in control non-transgenic mice. Carcinogenesis 1996; 17:2455-61. [PMID: 8968063 DOI: 10.1093/carcin/17.11.2455] [Citation(s) in RCA: 113] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
In this study, we investigated the carcinogenic response of transgenic mice carrying the human prototype c-Ha-ras gene, namely Tg rasH2/CB6F1 mice, to various genotoxic carcinogens and compared it with that of control non-transgenic CB6F1 mice (non-Tg mice). The present studies were conducted as the first step in the evaluation of the Tg rasH2/CB6F1 mouse as a model for the rapid carcinogenicity testing system. Short-term (< or = 6 months) rapid carcinogenicity tests of various genotoxic carcinogens, 4-nitroquinoline-1-oxide, cyclophosphamide, N,N-diethylnitrosamine, N-methyl-N-nitrosourea, N-methyl-N'-nitro-N-nitrosoguanidine and methylazoxymethanol, revealed that Tg rasH2/CB6F1 mice are more susceptible to these genotoxic carcinogens than control non-Tg mice. Tg rasH2/CB6F1 mice developed tumors more rapidly compared with non-Tg mice. Malignant tumors were observed only in the carcinogen-treated Tg rasH2/CB6F1 mice, but not in non-Tg mice treated with the same carcinogens. Each carcinogen induced tumors in corresponding target tissues of the Tg rasH2/CB6F1 mice. Only a very few lung adenomas but no other tumors were seen as spontaneous tumors during the 6 months of carcinogenicity tests. These results demonstrate that more rapid onset and higher incidence of more malignant tumors can be expected with high probability after treatment with various genotoxic carcinogens in the Tg rasH2/CB6F1 mice than in control non-Tg mice. The Tg rasH2/CB6F1 mouse seems to be a promising candidate as an animal model for the development of a rapid carcinogenicity testing system.
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Affiliation(s)
- S Yamamoto
- Department of Pharmacology, School of Medicine, Keio University, Shinjuku-ku, Tokyo, Japan
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Abstract
A fluorescent beta-carboline, 1-methyl-1,2,3,4-tetrahydro-beta-carboline-3- carboxylic acid (MTCA) was identified in human normal lenses and cataractous lenses. The mean total amounts of MTCA in normal lenses (n = 7), diabetic cataractous lenses (n = 15), and senile cataractous lenses (n = 15) were 0.64 +/- 0.76 ng, 1.79 +/- 0.94 ng, and 3.66 +/- 1.04 ng, respectively. The MTCA levels in human lenses increased linearly with the age of the lenses, and there was a significant correlation between the total amount of MTCA in human lenses and the age of the lens. In all types of lenses, the concentrations of MTCA in the insoluble-protein fraction [pg (mg protein)-1] were significantly higher than those in the water-soluble protein fraction. These results suggest that MTCA may be one of the age-related fluorogens. In vitro experiments revealed that MTCA, a condensation reaction product of tryptophan with acetaldehyde, can be formed in the mixture of tryptophan and glucose by low temperature heating. Furthermore, the MTCA levels in the homogenate of cataractous lenses were significantly increased with the heating time, when the homogenate without addition of glucose and tryptophan was heated at 60 degrees C. This indicates that enough material such as tryptophan for MTCA formation is present in human cataractous lenses. Therefore, it may be that MTCA is formed in human lens. However, we can not rule out the possibility that MTCA in the lens may be derived from other sources, and deposited in the lens since MTCA is reported to be present in various foodstuffs and alcoholic beverages.
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Affiliation(s)
- S Manabe
- Department of Hygiene and Preventive Medicine, University of Tokyo, Japan
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45
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Yamoto T, Ohashi Y, Furukawa T, Teranishi M, Manabe S, Makita T. Change of the sex-dependent response to clofibrate in F344 rat liver during postnatal development. Toxicol Lett 1996; 85:77-83. [PMID: 8650696 DOI: 10.1016/0378-4274(96)03643-0] [Citation(s) in RCA: 5] [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: 02/01/2023]
Abstract
Although it has been reported that male rats are more responsive than females to peroxisome proliferation induced by clofibrate, these sex differences have been confirmed in young adult rats. Using 4-, 8-, and 12-week-old F344 rats, postnatal change of the sex-dependent response to clofibrate was investigated. These animals were administered 200 mg/kg body wt./day clofibrate by gavage for 7 days. In 4-week-old rats clofibrate-dependent changes (hepatomegaly, induction of hepatic microsomal and peroxisomal enzymes, proliferation of smooth endoplasmic reticulum and peroxisomes of hepatocytes) were slight in both sexes. In 8- and 12-week-old rats clofibrate-induced changes of males were moderate, whereas those of females were slight. These results suggest that the responsiveness of immature rat to clofibrate is weak and in males the susceptibility is gradually strong during postnatal development.
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Affiliation(s)
- T Yamoto
- Laboratory Animal Science and Toxicology Laboratories, Sankyo Co. Ltd., Shizuoka, Japan
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Uno M, Ueda S, Manabe S, Matsumoto K. [Monoballism associated with internal carotid artery occlusion : a case report]. No Shinkei Geka 1996; 24:169-73. [PMID: 8849478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A 62-year-old man was admitted to our hospital with abrupt onset of monoballism in the left arm. Brain MRI showed a hemorrhagic lesion in the right subthalamic nucleus. MRA demonstrated occlusion of the right internal carotid artery occlusion. Cerebral angiogram indicated a leptomeningeal anastomosis to the right middle cerebral artery from the right posterior cerebral artery. SPECT with 99mTc-HMPAO demonstrated the reduction of cerebral blood flow in the right frontotemporal region. Right superficial temporal artery-middle cerebral artery anastomosis was performed 7 months after onset. Monoballism disappeared after surgery and the patient had a good clinical course during the postoperative period. Monoballism associated with internal carotid artery occlusion is rare, and we were able to show the subthalamic nucleus lesion with MRI soon after onset. We considered that the reason for this hemorrhage in the subthalamic nucleus was the hemodynamic stress to the posterior cerebral artery area caused by the ipsilateral occlusion of the internal carotid artery.
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Affiliation(s)
- M Uno
- Department of Neurological Surgery, School of Medicine, The University of Tokushima, Japan
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47
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Hanai K, Takaba K, Manabe S, Nakano M, Kohda A, Matsuo M. Evaluation of cardiac function by echocardiography in dogs treated with doxorubicin. J Toxicol Sci 1996; 21:1-10. [PMID: 8852283 DOI: 10.2131/jts.21.1] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [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: 02/02/2023]
Abstract
Cardiac functions were evaluated by echocardiography in dogs treated with doxorubicin. The dogs were administered 1.5 mg/kg body-weight doxorubicin intravenously at intervals of 3 weeks. Two-dimensional echocardiography of several sections of the heart was taken and fractional shortenings of chordal and papillary muscle levels were measured from M-mode echocardiogram to assess the left ventricular contractile function. And color Doppler and pulse Doppler examinations of mitral flow velocity were performed. Concomitantly, electrocardiogram (ECG) was also examined. The animals with decreased cardiac function were euthanized and the hearts were examined histologically. Fractional shortening was reduced gradually in the dogs treated with doxorubicin. And mitral regurgitation during systolic phase and changes of mitral flow velocity during diastolic phase were also revealed in the dogs with severe reduction of fractional shortening. These changes might indicate the reduction of cardiac functions, both of contractility and diastolic filling functions. ECG abnormalities, which were small changes, revealed only in the dogs that had severe reduction of fractional shortening and mitral regurgitation. In histological examination, myocardial degeneration was observed. And, the degree of myocardial damage might be relative to alteration of fractional shortening. Thus, the result demonstrates that the early alteration of cardiac function induced with doxorubicin can be detected by echocardiography in dogs. The result also indicates that cardiac function predicted by fractional shortening measured from M-mode echocardiogram might be correlated with histological changes of myocardium.
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Affiliation(s)
- K Hanai
- Environmental Health Science Laboratory, Sumitomo Chemical Co., Ltd., Osaka, Japan
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Manabe S. Removal of virus through novel membrane filtration method. Dev Biol Stand 1996; 88:81-90. [PMID: 9119166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
To protect against virus infections, the new technology of the virus removal membrane has been developed. The novel virus removal filter PLANOVA is validated for virus removal, that is, reproducible and predictable. The removal is based on the sieving mechanism. The removal of viruses by PLANOVA with a given mean pore size ranging between 10 and 75 nm is predictable when the geometrical size and the deformability of the virus are known in advance under the given filtration conditions. The high removability of viruses originates from the unique pore structure, that is the structure of the multi-layer (or multi-screen) each of which is composed of two types of pores, the capillary and void pores. The good recovery rate of proteins is attained by using material with a good hydroscopic property such as regenerated cellulose. Designing the worst case of the process and selecting model viruses in the process validation experiment are important in the practical application of PLANOVA. The integrity tests by the membrane producer and by the user have been established. Although PLANOVA has already worked well in the field of drug manufacture, the combination of virus removal using PLANOVA and virus inactivation treatment gives potentially wide application.
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Affiliation(s)
- S Manabe
- Fukuoka Women's University, Japan
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Yuan J, Manabe S. Evaluation of exposure level of N-methyl-beta-carboline-3-carboxamide (FG 7142), an anxiogenic agent in humans. Environ Pollut 1996; 94:267-271. [PMID: 15093486 DOI: 10.1016/s0269-7491(96)00107-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/1996] [Accepted: 09/03/1996] [Indexed: 05/24/2023]
Abstract
beta-Carboline-3-carboxylic acid methylamide (FG 7142), an anxiogenic agent, has been detected in human urine. The urinary excretion level of FG 7142 in non-smokers was found to be 0.503 +/- 0.25 ng per day (mean +/- S.D., n=10), while that in smokers was found to be 2.418 +/- 0.384 ng per day (n=10). This suggests that humans are exposed to FG 7142 and that smokers are exposed to higher levels of FG 7142 than non-smokers. Considering the previous findings that FG 7142 is present in cigarette smoke, indoor and outdoor air and smoke condensate of tree leaves, humans may be exposed to FG 7142 via the airways and lungs, although we cannot exclude the possibility of exposure via foodstuffs. Results of animal experiments suggest that FG 7142 which enters the bloodstream is excreted into the urine via the kidneys within 24 h in an unchanged form. Therefore, monitoring the level of FG 7142 in urine may be useful for monitoring the exposure level of FG 7142.
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Affiliation(s)
- J Yuan
- Department of Hygiene and Preventive Medicine, Faculty of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan
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Takumi K, Koga T, Kanoh M, Udaka J, Tsuji H, Manabe S. Immunochemical crossreactivity between globulins from buckwheat and indigo seeds. Biosci Biotechnol Biochem 1995; 59:1971-2. [PMID: 8534994 DOI: 10.1271/bbb.59.1971] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Immunochemical relationships between salt-soluble proteins (albumins plus globulins) from buckwheat and indigo seeds were shown by immunoblot and immunodiffusion analyses using rabbit antisera raised against buckwheat globulins. These antigenic crossreactivities were roughly consistent with their polypeptide components judged by two-dimensional electrophoresis and SDS-PAGE analyses.
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Affiliation(s)
- K Takumi
- Laboratory of Food and Nutrition, Faculty of Education, Ehime University, Japan
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