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Suzuki Y, Nagaoka T, Terayama Y, Nagata Y, Yoshida T, Tsutsumi T, Kuriyama S, Matsushita M, Joki Y, Takasu K, Konishi H, Takahashi K. Prognostic analysis of pulmonary hypertension with lung parenchymal lesion: Comparison of mortality with and without connective tissue disease. Respir Investig 2024; 62:167-175. [PMID: 38142548 DOI: 10.1016/j.resinv.2023.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 09/29/2023] [Accepted: 11/22/2023] [Indexed: 12/26/2023]
Abstract
BACKGROUND The prognosis of pulmonary hypertension (PH) associated with connective tissue diseases related to interstitial pneumonia (CTD-IP PH) is relatively good among patients with PH and lung disease. However, the impact of pulmonary vasodilator treatment on the prognosis of CTD-IP PH compared with that of PH-induced chronic lung disease (group-3 PH) remains unclear. METHODS From 2012 to 2022, 50 patients with lung parenchymal lesions diagnosed with PH (mean pulmonary arterial pressure >20 mmHg) at Juntendo University Hospital were divided into two groups: CTD-IP PH (30 patients) and group 3-PH (20 patients). The impact of pulmonary vasodilator treatment and the use of long-term oxygen therapy (LTOT) on the prognosis of each group was examined retrospectively. RESULTS The prognosis of CTD-IP PH was significantly better compared to group-3 PH. While the treatment with pulmonary vasodilators did not affect the prognosis in group 3-PH, the prognosis of the patients treated with vasodilators in the CTD-IP PH group was significantly better than that of the non-treated patients. Treatment with multi-pulmonary vasodilators did not affect the prognosis in CTD-IP PH. Although the prognosis for the patients with LTOT was poor in all registered patients in the present study, treatment with pulmonary vasodilators improved the prognosis even under the use of LTOT in CTD-IP PH (P = 0.002). In a multivariate analysis of the CTD-IP PH group, pulmonary vasodilator treatment was an independent factor for better prognosis. CONCLUSION Treatment with a pulmonary vasodilator for CTD-IP PH may improve the prognosis, even in patients requiring LTOT.
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Affiliation(s)
- Yoshifumi Suzuki
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo, Japan.
| | - Tetsutaro Nagaoka
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo, Japan.
| | - Yuriko Terayama
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo, Japan.
| | - Yuichi Nagata
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo, Japan.
| | - Takashi Yoshida
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo, Japan.
| | - Takeo Tsutsumi
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo, Japan.
| | - Sachiko Kuriyama
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo, Japan.
| | - Masakazu Matsushita
- Department of Internal Medicine and Rheumatology, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo, Japan.
| | - Yusuke Joki
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - Kiyoshi Takasu
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - Hakuoh Konishi
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - Kazuhisa Takahashi
- Department of Respiratory Medicine, Juntendo University Faculty of Medicine and Graduate School of Medicine, Tokyo, Japan.
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Joki Y, Konishi H, Takasu K, Minamino T. Tofogliflozin, a sodium-glucose cotransporter 2 inhibitor, improves pulmonary vascular remodeling due to left heart disease in mice. J Cardiol 2023; 81:347-355. [PMID: 36244565 DOI: 10.1016/j.jjcc.2022.10.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 09/21/2022] [Accepted: 09/27/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Group 2 pulmonary hypertension (PH) represents PH caused by left heart disease (PH-LHD). LHD induces left-sided filling and PH, finally leading to pulmonary vascular remodeling. Tofogliflozin (TOFO) is a sodium-glucose cotransporter 2 (SGLT2) inhibitor used in the treatment of diabetes. Recent studies have shown that SGLT2 inhibitors have beneficial effects on heart failure, but the effects of SGLT2 inhibitors on PH-LHD remain unclear. We hypothesized that TOFO has protective effects against pulmonary vascular remodeling in PH-LHD mice. METHODS We generated two murine models of PH-LHD: a transverse aortic constriction (TAC) model; and a high-fat diet (HFD) model. C57BL/6J mice were subjected to TAC and treated with TOFO (3 mg/kg/day) for 3 weeks. AKR/J mice were fed HFD and treated with TOFO (3 mg/kg/day) for 20 weeks. We then measured physical data and right ventricular systolic pressure (RVSP) and performed cardiography. Human pulmonary artery smooth muscle cells (PASMCs) were cultured and treated with TOFO. RESULTS Mice treated with TOFO demonstrated increased urine glucose levels. TAC induced left ventricular hypertrophy and increased RVSP. TOFO treatment improved RVSP. HFD increased body weight (BW) and RVSP compared with the normal chow group. TOFO treatment ameliorated increases in BW and RVSP induced by HFD. Moreover, PASMCs treated with TOFO showed suppressed migration. CONCLUSIONS TOFO treatment ameliorated right heart overload and pulmonary vascular remodeling for PH-LHD models, suggesting that SGLT2 inhibitors are effective for treating PH-LHD.
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Affiliation(s)
- Yusuke Joki
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hakuoh Konishi
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - Kiyoshi Takasu
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Tohru Minamino
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
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Joki Y, Konishi H, Ebinuma H, Takasu K, Minamino T. Circulating sLR11 levels predict severity of pulmonary hypertension due to left heart disease. PLoS One 2021; 16:e0261753. [PMID: 34965280 PMCID: PMC8716052 DOI: 10.1371/journal.pone.0261753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 12/07/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Heart failure is a severe condition often involving pulmonary hypertension (PH). Soluble low-density lipoprotein receptor with 11 ligand-binding repeats (sLR11) has been associated with pulmonary artery hypertension. We examined whether sLR11 correlates with PH in left heart disease and can be used as a predictive marker. METHOD We retrospectively analyzed patients with severe mitral regurgitation who underwent right heart catheterization before surgery for valve replacement or valvuloplasty from November 2005 to October 2012 at Juntendo University. We measured sLR11 levels before right heart catheterization and analyzed correlations with pulmonary hemodynamics. We compared prognoses between a group with normal sLR11 (≤9.4 ng/ml) and a group with high sLR11 (>9.4 ng/ml). Follow-up was continued for 5 years, with end points of hospitalization due to HF and death due to cardiovascular disease. RESULTS Among 34 patients who met the inclusion criteria, sLR11 correlated with mean pulmonary artery pressure (r = 0.54, p<0.001), transpulmonary pressure gradient (r = 0.42, p = 0.012), pulmonary vascular resistance (r = 0.36, p<0.05), and log brain natriuretic peptide (BNP). However, logBNP did not correlate with pulmonary vascular resistance (p = 0.6). Levels of sLR11 were significantly higher in the 10 patients with PH (14.4±4.3 ng/ml) than in patients without PH (9.9±3.9 ng/ml; p = 0.002). At 5 years, the event rate was higher in the high-sLR11 group than in the normal-sLR11 group. The high-sLR11 group showed 5 hospitalizations due to HF (25.0%) and 2 deaths (10.0%), whereas the normal-sLR11 group showed no hospitalizations or deaths. Analyses using receiver operating characteristic curves showed a higher area under the concentration-time curve (AUC) for sLR11 level (AUC = 0.85; 95% confidence interval (CI) = 0.72-0.98) than for BNP (AUC = 0.80, 95%CI = 0.62-0.99) in the diagnosis of PH in left heart disease. CONCLUSIONS Concentration of sLR11 is associated with severity of PH and offers a strong predictor of severe mitral regurgitation in patients after surgery.
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Affiliation(s)
- Yusuke Joki
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Bunkyo City, Tokyo, Japan
| | - Hakuoh Konishi
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Bunkyo City, Tokyo, Japan
- * E-mail:
| | - Hiroyuki Ebinuma
- Tsukuba Research Institute, Sekisui Medical Co Ltd, Ryugasaki, Japan
| | - Kiyoshi Takasu
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Bunkyo City, Tokyo, Japan
| | - Tohru Minamino
- Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Bunkyo City, Tokyo, Japan
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Hiki M, Iwata H, Takasu K, Nojiri S, Ishikawa G, Chikata Y, C Mattson P, Kasai T, Miyazaki T, Inoue K, Fujiwara Y, Sumiyoshi M, Kinugawa K, Daida H. Elevated Heart Rate in Combination with Elevated Blood Pressure Predicts Lower Cardiovascular Mortality in Acute Decompensated Heart Failure. Int Heart J 2020; 61:308-315. [PMID: 32173710 DOI: 10.1536/ihj.19-521] [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] [Indexed: 11/18/2022]
Abstract
Despite its clinical relevance, a subclass of acute decompensated heart failure (ADHF) with elevated blood pressure, known as hypertensive ADHF (HT-ADHF), has been less intensively evaluated. This study aimed to characterize the prognostic nature and pathophysiology of HT-ADHF. A total of 509 consecutive patients with first-time ADHF hospitalization were subjects of the study. Participants were divided into two groups: an HT-ADHF group (systolic blood pressure, SBP > 140 mmHg at presentation) and a non-HT-ADHF group (SBP ≤ 140 mmHg). Median follow-up duration measured 253 days. Unadjusted Kaplan-Meier analysis demonstrated both a lower cardiovascular mortality rate in the HT-ADHF group and similar incidences of heart failure rehospitalization in both groups. Adjusted Cox hazard analysis showed an association of elevated SBP at presentation with significantly lower cardiovascular mortality, though no such association was observed with heart failure rehospitalization. Moreover, elevated heart rate in combination with elevated SBP at presentation predicted a significantly lower risk of cardiovascular mortality (Hazard Ratio: 0.32, 95% CI: 0.14-0.77, P = 0.01). Also, significantly lower cardiovascular mortality was observed in this subtype, compared with other types of ADHF.
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Affiliation(s)
- Masaru Hiki
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Hiroshi Iwata
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Kiyoshi Takasu
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Shuko Nojiri
- Medical Technology Innovation Center, Juntendo University
| | - Go Ishikawa
- Department of Cardiovascular Medicine, Juntendo University Nerima Hospital
| | - Yuichi Chikata
- Department of Cardiovascular Medicine, Juntendo University Nerima Hospital
| | | | - Takatoshi Kasai
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Tetsuro Miyazaki
- Department of Cardiovascular Medicine, Juntendo University Urayasu Hospital
| | - Kenji Inoue
- Department of Cardiovascular Medicine, Juntendo University Nerima Hospital
| | - Yasumasa Fujiwara
- Department of Cardiovascular Medicine, Juntendo University Nerima Hospital
| | - Masataka Sumiyoshi
- Department of Cardiovascular Medicine, Juntendo University Nerima Hospital
| | | | - Hiroyuki Daida
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
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5
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Takano AM, Iwata H, Miyosawa K, Kimura A, Mukaida H, Osawa S, Kubota K, Doi S, Funamizu T, Takasu K, Okai I, Tamura H, Isoda K, Okazaki S, Suwa S, Miyauchi K, Sumiyoshi M, Amano A, Daida H. Reduced Number of Platelets During Intra-Aortic Balloon Pumping Counterpulsation Predicts Higher Cardiovascular Mortality After Device Removal in Association with Systemic Inflammation. Int Heart J 2020; 61:89-95. [DOI: 10.1536/ihj.19-349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Asuka Minami Takano
- Department of Clinical Engineering, Juntendo University Graduate School of Medicine
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Hiroshi Iwata
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Katsutoshi Miyosawa
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Atsushi Kimura
- Department of Clinical Engineering, Juntendo University Nerima Hospital
| | - Hiroshi Mukaida
- Department of Clinical Engineering, Juntendo University Graduate School of Medicine
| | - Shota Osawa
- Department of Clinical Engineering, Juntendo University Graduate School of Medicine
| | - Kyoko Kubota
- Department of Clinical Engineering, Juntendo University Shizuoka Hospital
| | - Shinichiro Doi
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Takehiro Funamizu
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Kiyoshi Takasu
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Iwao Okai
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Hiroshi Tamura
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Kikuo Isoda
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Shinya Okazaki
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Satoru Suwa
- Department of Cardiovascular Medicine, Juntendo University Shizuoka Hospital
| | - Katsumi Miyauchi
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Masataka Sumiyoshi
- Department of Cardiovascular Medicine, Juntendo University Nerima Hospital
| | - Atsushi Amano
- Department of Cardiovascular Surgery, Juntendo University Graduate School of Medicine
| | - Hiroyuki Daida
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
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6
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Hiki M, Iwata H, Takasu K, Ishikawa G, Chikata Y, Kasai T, Miyazaki T, Inoue K, Fujiwara Y, Sumiyoshi M, Daida H. LOW HEART RATE IN COMBINATION WITH LOW BLOOD PRESSURE IN PATIENTS WITH ACUTE DECOMPENSATED HEART FAILURE ASSOCIATES WITH INCREASED RISK OF CARDIOVASCULAR MORTALITY. J Am Coll Cardiol 2018. [DOI: 10.1016/s0735-1097(18)31379-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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7
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Edahiro Y, Takaku T, Konishi H, Tsukune Y, Fujioka I, Takasu K, Gotoh A, Daida H, Komatsu N. [Chronic myeloid leukemia complicated by pulmonary hypertension during dasatinib therapy: a single-center retrospective study]. Rinsho Ketsueki 2017; 58:2213-2218. [PMID: 29212971 DOI: 10.11406/rinketsu.58.2213] [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] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Pulmonary artery hypertension (PAH) has been reported to be a severe adverse event associated with dasatinib therapy. Among the 76 chronic myeloid patients who were treated with dasatinib at our hospital, six patients showed high estimated pulmonary arterial systolic pressure, as observed by echocardiography. PAH was confirmed using right heart catheterization in three (3.9%) patients with increased mean pulmonary artery pressure (mPAP). In one patient, although mPAP was higher than the normal range, it did not fulfill the criteria of pulmonary hypertension. After the discontinuation of dasatinib, BNP and dyspnea were improved in five patients. Therefore, it should be noted that dasatinib can cause PAH at higher rates than those reported previously, and if PAH is confirmed or suspected during dasatinib therapy, then dasatinib should be immediately discontinued.
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Affiliation(s)
- Yoko Edahiro
- Department of Hematology, Juntendo University School of Medicine
| | - Tomoiku Takaku
- Department of Hematology, Juntendo University School of Medicine
| | - Hakuoh Konishi
- Department of Cardiovascular Medicine, Juntendo University School of Medicine
| | - Yutaka Tsukune
- Department of Hematology, Juntendo University School of Medicine
| | - Isao Fujioka
- Department of Hematology, Juntendo University School of Medicine
| | - Kiyoshi Takasu
- Department of Cardiovascular Medicine, Juntendo University School of Medicine
| | - Akihiko Gotoh
- Department of Hematology, Juntendo University School of Medicine
| | - Hiroyuki Daida
- Department of Cardiovascular Medicine, Juntendo University School of Medicine
| | - Norio Komatsu
- Department of Hematology, Juntendo University School of Medicine
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Takasu K, Miyazaki T, Negoro K, Yatsu S, Shimizu M, Murata A, Kato T, Suda S, Hiki M, Kasai T, Miyauchi K, Daida H. Successful Treatment of Congestive Heart Failure Due to Severe Aortic Valve Stenosis With Low Dose Tolvaptan in Elderly Patients. Int Heart J 2017; 58:378-384. [PMID: 28539565 DOI: 10.1536/ihj.16-226] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Medical therapy for severe aortic valve stenosis (AS) is necessary for inoperable patients due to comorbid conditions. Tolvaptan (TLV), unlike other diuretics, resulted in modest changes in filling pressures associated with an increase in urine output, suggesting that TLV improves congestive heart failure (CHF) due to severe AS without hemodynamic instability.We retrospectively investigated 14 consecutive patients ≥ 80 years of age admitted due to decompensated CHF with severe AS at Juntendo University Hospital from April 2014 to November 2015. Seven of the 14 patients were treated with TLV. We examined the safety and efficacy of TLV treatment for severe AS.Mean age was 90.0 ± 6.3 years and mean aortic valve area was 0.57 ± 0.22 cm2. Urine volume at day 1 of TLV treatment was increased and urine osmolality significantly decreased at day 1 of TLV treatment (all P < 0.05). New York Heart Association classification and brain natriuretic peptide levels significantly improved 1 week after treatment and at discharge (all P < 0.05) whereas brain natriuretic peptide levels did not improve in the patients without TLV. Severe adverse events did not occur during TLV treatment. During the first 3 days, blood pressure and heart rate were relatively stable. TLV treatment did not affect serum creatinine, blood urea nitrogen, or the estimated glomerular filtration rate.In elderly patients with severe AS, TLV treatment improved CHF without hemodynamic instability. Further prospective studies are needed to assess the safety and efficacy of TLV in decompensated heart failure due to severe AS.
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Affiliation(s)
- Kiyoshi Takasu
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Tetsuro Miyazaki
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Kanako Negoro
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Shoichiro Yatsu
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Megumi Shimizu
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Azusa Murata
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Takao Kato
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Shoko Suda
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Masaru Hiki
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Takatoshi Kasai
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Katsumi Miyauchi
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Hiroyuki Daida
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
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Hiki M, Miyazaki T, Shimada K, Sugita Y, Shimizu M, Aikawa T, Ouchi S, Shiozawa T, Takasu K, Takahashi S, Takagi A, Miyauchi K, Daida H. Significance of Serum Polyunsaturated Fatty Acid Level Imbalance in Patients with Acute Venous Thromboembolism. J Atheroscler Thromb 2017; 24:1016-1022. [PMID: 28344195 PMCID: PMC5656763 DOI: 10.5551/jat.37424] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Aim: Polyunsaturated fatty acids (PUFAs) take part in various biological events linked to the pathogenesis of venous thromboembolism (VTE), including inflammation, endothelial dysfunction, and hypercoagulability. Several studies have demonstrated the association between PUFAs and the occurrence of VTE. However, the role of PUFAs in the pathogenesis of VTE remains unclear. Methods: We enrolled 45 patients with acute VTE and 37 age-, gender-, and body mass indexmatched healthy volunteers to examine their PUFA levels. Serum omega 3 (eicosapentaenoic acid: EPA and docosahexaenoic acid: DHA) and omega 6 (dihomogammalinolenic acid: DGLA and arachidonic acid: AA) fatty acids levels were measured within 24 h of admission. Results: Patients with VTE showed significantly higher AA and lower EPA levels, and lower EPA/AA ratios than the controls. Multivariate analysis revealed that AA was an independent marker for VTE. In addition, we divided the patients based on their median age (58 years old). The younger patients with VTE showed significantly lower EPA/AA levels than their age-matched controls, whereas older patients with VTE showed a significantly higher AA/DGLA levels than the older controls. Conclusions: High serum AA levels and low EPA levels are associated with the development of acute VTE, suggesting that the imbalance of PUFAs may be a potential therapeutic target for preventing acute VTE.
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Affiliation(s)
- Masaru Hiki
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Tetsuro Miyazaki
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Kazunori Shimada
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Yurina Sugita
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Megumi Shimizu
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Tatsuro Aikawa
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Shohei Ouchi
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Tomoyuki Shiozawa
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Kiyoshi Takasu
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Shuhei Takahashi
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Atsutoshi Takagi
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Katsumi Miyauchi
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
| | - Hiroyuki Daida
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine
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Abstract
Venous thrombus was recognized in the upper extremity of a 53-year-old man after blood donation. The patient presented with a 15-day history of swelling in the left upper-extremity that started 6 hours after apheresis. Contrast-enhanced computed tomography revealed clots in the deep veins of the left arm and the peripheral pulmonary artery. Blood donation had proceeded smoothly, and the patient had no thrombotic predisposition, except for a smoking habit. The thrombus resolved following anticoagulant therapy, and the patient' s clinical course was uncomplicated. Despite a thorough investigation, the cause of this thrombus remains unknown.
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Affiliation(s)
- Yuichiro Haba
- Department of General Medicine, Juntendo University School of Medicine, Japan
| | - Hiroko Oshima
- Department of General Medicine, Juntendo University School of Medicine, Japan
| | - Toshio Naito
- Department of General Medicine, Juntendo University School of Medicine, Japan
| | - Kiyoshi Takasu
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Japan
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11
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Hiki M, Iwata H, Takasu K, Yatsu S, Murata A, Kato T, Suda S, Kasai T, Miyazaki T, Daida H. Circadian Rhythm Associated with the Onset of Clinical Scenario 1 (CS1) Acute Decompensated Heart Failure (ADHF). J Card Fail 2016. [DOI: 10.1016/j.cardfail.2016.07.106] [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: 11/27/2022]
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12
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Jiang L, Konishi H, Nurwidya F, Satoh K, Takahashi F, Ebinuma H, Fujimura K, Takasu K, Jiang M, Shimokawa H, Bujo H, Daida H. Deletion of LR11 Attenuates Hypoxia-Induced Pulmonary Arterial Smooth Muscle Cell Proliferation With Medial Thickening in Mice. Arterioscler Thromb Vasc Biol 2016; 36:1972-9. [PMID: 27493099 DOI: 10.1161/atvbaha.116.307900] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Accepted: 07/19/2016] [Indexed: 11/16/2022]
Abstract
OBJECTIVE We aimed to determine whether LR11 (low-density lipoprotein receptor with 11 binding repeats) is a potential key regulator of smooth muscle cell (SMC) proliferation during the progression of hypoxia-induced medial thickening in mice and whether sLR11 (soluble LR11) can serve as a biomarker in patients with pulmonary arterial hypertension. APPROACH AND RESULTS The role of LR11 in pulmonary arterial hypertension was investigated using mouse and cell models of induced hypoxia. The expression of LR11 and of hypoxia-inducible factor-1α was significantly increased in lung tissues from C57Bl/6 mice after 3 weeks of exposure to hypoxia compared with normoxia. Serum sLR11 levels were also increased. Physiological and histochemical analyses showed that increased right ventricular systolic pressure, right ventricular hypertrophy, and medial thickening induced under hypoxia in wild-type mice were attenuated in LR11(-/-) mice. The proliferation rates stimulated by hypoxia or platelet-derived growth factor-BB were attenuated in SMC derived from LR11(-/-) mice, compared with those from wild-type mice. Exogenous sLR11 protein increased the proliferation rates of SMC from wild-type mice. The expression of LR11 and hypoxia-inducible factor-1α was increased in cultured SMC under hypoxic conditions, and hypoxia-inducible factor-1α knockdown almost abolished the induction of LR11. Serum sLR11 levels were significantly higher in patients with, rather than without, pulmonary arterial hypertension. sLR11 levels positively correlated with pulmonary vascular resistance and mean pulmonary arterial pressure. CONCLUSIONS LR11 regulated SMC proliferation during the progression of hypoxia-induced medial thickening in mice. The findings obtained from mice, together with those in humans, indicate that sLR11 could serve as a novel biomarker that reflects the pathophysiology of proliferating medial SMC in pulmonary arterial hypertension.
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Affiliation(s)
- Le Jiang
- From the Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan (L.J., H.K., K.T., H.D.); Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan (F.N., F.T.); Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan (K.S., H.S.); Tsukuba Research Institute, Sekisui Medical Co Ltd, Ryugasaki, Japan (H.E., K.F.); and Department of Clinical-Laboratory and Experimental-Research Medicine, Toho University Sakura Medical Center, Sakura, Japan (M.J., H.B.)
| | - Hakuoh Konishi
- From the Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan (L.J., H.K., K.T., H.D.); Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan (F.N., F.T.); Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan (K.S., H.S.); Tsukuba Research Institute, Sekisui Medical Co Ltd, Ryugasaki, Japan (H.E., K.F.); and Department of Clinical-Laboratory and Experimental-Research Medicine, Toho University Sakura Medical Center, Sakura, Japan (M.J., H.B.).
| | - Fariz Nurwidya
- From the Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan (L.J., H.K., K.T., H.D.); Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan (F.N., F.T.); Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan (K.S., H.S.); Tsukuba Research Institute, Sekisui Medical Co Ltd, Ryugasaki, Japan (H.E., K.F.); and Department of Clinical-Laboratory and Experimental-Research Medicine, Toho University Sakura Medical Center, Sakura, Japan (M.J., H.B.)
| | - Kimio Satoh
- From the Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan (L.J., H.K., K.T., H.D.); Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan (F.N., F.T.); Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan (K.S., H.S.); Tsukuba Research Institute, Sekisui Medical Co Ltd, Ryugasaki, Japan (H.E., K.F.); and Department of Clinical-Laboratory and Experimental-Research Medicine, Toho University Sakura Medical Center, Sakura, Japan (M.J., H.B.)
| | - Fumiyuki Takahashi
- From the Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan (L.J., H.K., K.T., H.D.); Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan (F.N., F.T.); Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan (K.S., H.S.); Tsukuba Research Institute, Sekisui Medical Co Ltd, Ryugasaki, Japan (H.E., K.F.); and Department of Clinical-Laboratory and Experimental-Research Medicine, Toho University Sakura Medical Center, Sakura, Japan (M.J., H.B.)
| | - Hiroyuki Ebinuma
- From the Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan (L.J., H.K., K.T., H.D.); Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan (F.N., F.T.); Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan (K.S., H.S.); Tsukuba Research Institute, Sekisui Medical Co Ltd, Ryugasaki, Japan (H.E., K.F.); and Department of Clinical-Laboratory and Experimental-Research Medicine, Toho University Sakura Medical Center, Sakura, Japan (M.J., H.B.)
| | - Kengo Fujimura
- From the Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan (L.J., H.K., K.T., H.D.); Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan (F.N., F.T.); Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan (K.S., H.S.); Tsukuba Research Institute, Sekisui Medical Co Ltd, Ryugasaki, Japan (H.E., K.F.); and Department of Clinical-Laboratory and Experimental-Research Medicine, Toho University Sakura Medical Center, Sakura, Japan (M.J., H.B.)
| | - Kiyoshi Takasu
- From the Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan (L.J., H.K., K.T., H.D.); Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan (F.N., F.T.); Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan (K.S., H.S.); Tsukuba Research Institute, Sekisui Medical Co Ltd, Ryugasaki, Japan (H.E., K.F.); and Department of Clinical-Laboratory and Experimental-Research Medicine, Toho University Sakura Medical Center, Sakura, Japan (M.J., H.B.)
| | - Meizi Jiang
- From the Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan (L.J., H.K., K.T., H.D.); Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan (F.N., F.T.); Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan (K.S., H.S.); Tsukuba Research Institute, Sekisui Medical Co Ltd, Ryugasaki, Japan (H.E., K.F.); and Department of Clinical-Laboratory and Experimental-Research Medicine, Toho University Sakura Medical Center, Sakura, Japan (M.J., H.B.)
| | - Hiroaki Shimokawa
- From the Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan (L.J., H.K., K.T., H.D.); Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan (F.N., F.T.); Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan (K.S., H.S.); Tsukuba Research Institute, Sekisui Medical Co Ltd, Ryugasaki, Japan (H.E., K.F.); and Department of Clinical-Laboratory and Experimental-Research Medicine, Toho University Sakura Medical Center, Sakura, Japan (M.J., H.B.)
| | - Hideaki Bujo
- From the Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan (L.J., H.K., K.T., H.D.); Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan (F.N., F.T.); Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan (K.S., H.S.); Tsukuba Research Institute, Sekisui Medical Co Ltd, Ryugasaki, Japan (H.E., K.F.); and Department of Clinical-Laboratory and Experimental-Research Medicine, Toho University Sakura Medical Center, Sakura, Japan (M.J., H.B.)
| | - Hiroyuki Daida
- From the Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan (L.J., H.K., K.T., H.D.); Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan (F.N., F.T.); Department of Cardiovascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan (K.S., H.S.); Tsukuba Research Institute, Sekisui Medical Co Ltd, Ryugasaki, Japan (H.E., K.F.); and Department of Clinical-Laboratory and Experimental-Research Medicine, Toho University Sakura Medical Center, Sakura, Japan (M.J., H.B.)
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13
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Koda K, Hyakkoku K, Ogawa K, Takasu K, Imai S, Sakurai Y, Fujita M, Ono H, Yamamoto M, Fukuda I, Yamane S, Morita A, Asaki T, Kanemasa T, Sakaguchi G, Morioka Y. Sensitization of TRPV1 by protein kinase C in rats with mono-iodoacetate-induced joint pain. Osteoarthritis Cartilage 2016; 24:1254-62. [PMID: 26970286 DOI: 10.1016/j.joca.2016.02.010] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [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: 07/28/2015] [Revised: 02/10/2016] [Accepted: 02/26/2016] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To assess the functional changes of Transient receptor potential vanilloid 1 (TRPV1) receptor and to clarify its mechanism in a rat mono-iodoacetate (MIA)-induced joint pain model (MIA rats), which has joint degeneration with cartilage loss similar to osteoarthritis. METHODS Sensitization of TRPV1 in MIA rats was assessed by transient spontaneous pain behavior induced by capsaicin injection in knee joints and electrophysiological changes of dorsal root ganglion (DRG) neurons innervating knee joints in response to capsaicin. Mechanisms of TRPV1 sensitization were analyzed by a newly developed sandwich enzyme-linked immunosorbent assay that detects phosphorylated TRPV1, followed by functional and expression analyses of protein kinase C (PKC) in vivo and in vitro, which involves TRPV1 phosphorylation. RESULTS Pain-related behavior induced by intra-articular injection of capsaicin was significantly increased in MIA rats compared with sham rats. In addition, capsaicin sensitivity, evaluated by capsaicin-induced inward currents, was significantly increased in DRG neurons of MIA rats. Protein levels of TRPV1 remained unchanged, but phosphorylated TRPV1 at Ser800 increased in DRG neurons of MIA rats. Phosphorylated-PKCɛ (p-PKCɛ) increased and co-localized with TRPV1 in DRG neurons of MIA rats. Capsaicin-induced pain-related behavior in MIA rats was inhibited by intra-articular pretreatment of the PKC inhibitor bisindolylmaleimide I. In addition, intra-articular injection of the PKC activator phorbol 12-myristate 13-acetate increased capsaicin-induced pain-related behavior in normal rats. CONCLUSION TRPV1 was sensitized at the knee joint and at DRG neurons of MIA rats through PKC activation. Thus, TRPV1 sensitization might be involved in chronic pain caused by osteoarthritis.
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Affiliation(s)
- K Koda
- Pain & Neuroscience, Discovery Research Laboratories for Core Therapeutic Areas, Shionogi & Co., Ltd., 1-1 Futaba-cho, 3-chome, Toyonaka, Osaka 561-0825, Japan.
| | - K Hyakkoku
- Pain & Neuroscience, Discovery Research Laboratories for Core Therapeutic Areas, Shionogi & Co., Ltd., 1-1 Futaba-cho, 3-chome, Toyonaka, Osaka 561-0825, Japan.
| | - K Ogawa
- Pain & Neuroscience, Discovery Research Laboratories for Core Therapeutic Areas, Shionogi & Co., Ltd., 1-1 Futaba-cho, 3-chome, Toyonaka, Osaka 561-0825, Japan.
| | - K Takasu
- Pain & Neuroscience, Discovery Research Laboratories for Core Therapeutic Areas, Shionogi & Co., Ltd., 1-1 Futaba-cho, 3-chome, Toyonaka, Osaka 561-0825, Japan.
| | - S Imai
- Antibody Therapeutics, Discovery Research Laboratory for Innovative Frontier Medicines, Shionogi & Co., Ltd., 1-1 Futaba-cho, 3-chome, Toyonaka, Osaka 561-0825, Japan.
| | - Y Sakurai
- Pain & Neuroscience, Discovery Research Laboratories for Core Therapeutic Areas, Shionogi & Co., Ltd., 1-1 Futaba-cho, 3-chome, Toyonaka, Osaka 561-0825, Japan.
| | - M Fujita
- Pain & Neuroscience, Discovery Research Laboratories for Core Therapeutic Areas, Shionogi & Co., Ltd., 1-1 Futaba-cho, 3-chome, Toyonaka, Osaka 561-0825, Japan.
| | - H Ono
- Pain & Neuroscience, Discovery Research Laboratories for Core Therapeutic Areas, Shionogi & Co., Ltd., 1-1 Futaba-cho, 3-chome, Toyonaka, Osaka 561-0825, Japan.
| | - M Yamamoto
- Pain & Neuroscience, Discovery Research Laboratories for Core Therapeutic Areas, Shionogi & Co., Ltd., 1-1 Futaba-cho, 3-chome, Toyonaka, Osaka 561-0825, Japan.
| | - I Fukuda
- Biomarker, Biotechnology-Based Medicine, Discovery Research Laboratory for Innovative Frontier Medicines, Shionogi & Co., Ltd., 1-1 Futaba-cho, 3-chome, Toyonaka, Osaka 561-0825, Japan.
| | - S Yamane
- Antibody Therapeutics, Discovery Research Laboratory for Innovative Frontier Medicines, Shionogi & Co., Ltd., 1-1 Futaba-cho, 3-chome, Toyonaka, Osaka 561-0825, Japan.
| | - A Morita
- Biomarker, Biotechnology-Based Medicine, Discovery Research Laboratory for Innovative Frontier Medicines, Shionogi & Co., Ltd., 1-1 Futaba-cho, 3-chome, Toyonaka, Osaka 561-0825, Japan.
| | - T Asaki
- Pain & Neuroscience, Discovery Research Laboratories for Core Therapeutic Areas, Shionogi & Co., Ltd., 1-1 Futaba-cho, 3-chome, Toyonaka, Osaka 561-0825, Japan.
| | - T Kanemasa
- Pain & Neuroscience, Discovery Research Laboratories for Core Therapeutic Areas, Shionogi & Co., Ltd., 1-1 Futaba-cho, 3-chome, Toyonaka, Osaka 561-0825, Japan.
| | - G Sakaguchi
- Pain & Neuroscience, Discovery Research Laboratories for Core Therapeutic Areas, Shionogi & Co., Ltd., 1-1 Futaba-cho, 3-chome, Toyonaka, Osaka 561-0825, Japan.
| | - Y Morioka
- Pain & Neuroscience, Discovery Research Laboratories for Core Therapeutic Areas, Shionogi & Co., Ltd., 1-1 Futaba-cho, 3-chome, Toyonaka, Osaka 561-0825, Japan.
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14
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Matsumoto H, Kasai T, Kattel S, Suda S, Hiki M, Takasu K, Miyazaki T, Takagi A, Miyauchi K, Daida H. Long-Term Outcome of Patients with Acute Decompensated Heart Failure and Elevated Blood Glucose Level on Admission. J Card Fail 2015. [DOI: 10.1016/j.cardfail.2015.08.164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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Takasu K, Matsumoto H, Nishiyama H, Kasai T, Miyazaki T, Takagi A, Konishi H, Ohmura H, Miyauchi K, Daida H. Pulmonary Hypertension Associated with Obesity Hypoventilation Syndrome: A Case Report. J Card Fail 2014. [DOI: 10.1016/j.cardfail.2014.07.166] [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]
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16
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Dohi T, Kasai T, Miyauchi K, Takasu K, Kajimoto K, Kubota N, Amano A, Daida H. Prognostic impact of chronic kidney disease on 10-year clinical outcomes among patients with acute coronary syndrome. J Cardiol 2012; 60:438-42. [DOI: 10.1016/j.jjcc.2012.08.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Revised: 07/21/2012] [Accepted: 08/13/2012] [Indexed: 02/01/2023]
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17
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Kinoshita Y, Takasu K, Yuri T, Nagumo S, Kobayashi TK, Shikata N, Tsubura A. Cytological findings in urothelial carcinoma of the bladder with trophoblastic differentiation. Cytopathology 2012; 24:405-8. [DOI: 10.1111/j.1365-2303.2012.00993.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Ogawa K, Takasu K, Shinohara S, Yoneda Y, Kato A. Pharmacological characterization of lysophosphatidic acid-induced pain with clinically relevant neuropathic pain drugs. Eur J Pain 2011; 16:994-1004. [DOI: 10.1002/j.1532-2149.2011.00096.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/26/2011] [Indexed: 11/06/2022]
Affiliation(s)
| | - K. Takasu
- Pain and Neurology, Discovery Research Laboratories; Shionogi & Co., Ltd; Shiga; Japan
| | - S. Shinohara
- Pain and Neurology, Discovery Research Laboratories; Shionogi & Co., Ltd; Shiga; Japan
| | - Y. Yoneda
- Laboratory of Molecular Pharmacology, Division of Pharmaceutical Sciences; Kanazawa University Graduate School of Natural Science and Technology; Ishikawa; Japan
| | - A. Kato
- Pain and Neurology, Discovery Research Laboratories; Shionogi & Co., Ltd; Shiga; Japan
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19
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Tanabe M, Takeuchi Y, Takasu K, Ono H. 166 PREGABALIN SUPRASPINALLY ACTIVATES THE DESCENDING NORADRENERGIC PAIN INHIBITORY SYSTEM AFTER PERIPHERAL NERVE INJURY. Eur J Pain 2007. [DOI: 10.1016/j.ejpain.2007.03.181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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20
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Tanabe M, Tokuda Y, Takasu K, Ono K, Honda M, Ono H. The synthetic TRH analogue taltirelin exerts modality-specific antinociceptive effects via distinct descending monoaminergic systems. Br J Pharmacol 2007; 150:403-14. [PMID: 17220907 PMCID: PMC2189720 DOI: 10.1038/sj.bjp.0707125] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [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: 12/14/2022] Open
Abstract
BACKGROUND AND PURPOSE Exogenously administered thyrotropin-releasing hormone (TRH) is known to exert potent but short-acting centrally-mediated antinociceptive effects. We sought to investigate the mechanisms underlying these effects using the synthetic TRH analogue taltirelin, focusing on the descending monoaminergic systems in mice. EXPERIMENTAL APPROACH The mice received systemic or local injections of taltirelin combined with either central noradrenaline (NA) or 5-hydroxytryptamine (5-HT) depletion by 6-hydroxydopamine (6-OHDA) or DL-p-chlorophenylalanine (PCPA), respectively, or blockade of their receptors. The degree of antinociception was determined using the tail flick and tail pressure tests. KEY RESULTS Subcutaneously (s.c.) administered taltirelin exhibited dose-dependent antinociceptive effects in the tail flick and tail pressure tests. These effects appeared to be primarily supraspinally mediated, since intracerebroventricularly (i.c.v.) but not intrathecally (i.t.) injected taltirelin generated similar effects. Depletion of central NA abolished only the analgesic effect of taltirelin (s.c. and i.c.v.) on mechanical nociception. By contrast, depletion of central 5-HT abolished only its analgesic effect on thermal nociception. Intraperitoneal (i.p.) and i.t. injection of the alpha2-adrenoceptor antagonist yohimbine respectively reduced the analgesic effect of taltirelin (s.c. and i.c.v.) on mechanical nociception. By contrast, the 5-HT1A receptor antagonist WAY-100635 (i.p. and i.t.) reduced the effect of taltirelin (s.c. and i.c.v.) on thermal nociception. Neither the 5-HT2 receptor antagonist ketanserin nor the opioid receptor antagonist naloxone altered the antinociceptive effect of taltirelin. CONCLUSIONS AND IMPLICATIONS These findings suggest that taltirelin activates the descending noradrenergic and serotonergic pain inhibitory systems, respectively, to exert its analgesic effects on mechanical and thermal nociception.
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Affiliation(s)
- M Tanabe
- Laboratory of CNS Pharmacology, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan.
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21
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Olson DM, Rains GC, Meiners T, Takasu K, Tertuliano M, Tumlinson JH, Wäckers FL, Lewis WJ. Parasitic wasps learn and report diverse chemicals with unique conditionable behaviors. Chem Senses 2003; 28:545-9. [PMID: 12907592 DOI: 10.1093/chemse/28.6.545] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.0] [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: 11/13/2022] Open
Abstract
Parasitoids exploit numerous chemical cues to locate hosts and food. Whether they detect and learn chemicals foreign to their natural history has not been explored. We show that the parasitoid Microplitis croceipes can associate, with food or hosts, widely different chemicals outside their natural foraging encounters. When learned chemicals are subsequently detected, this parasitoid manifests distinct behaviors characteristic with expectations of food or host, commensurate with prior training. This flexibility of parasitoids to rapidly link diverse chemicals to resource needs and subsequently report them with recognizable behaviors offers new insights into their foraging adaptability, and provides a model for further dissection of olfactory learning related processes.
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Affiliation(s)
- D M Olson
- Crop Management and Research Laboratory, Agricultural Research Service, United States Department of Agriculture, PO Box 748, Tifton, GA 31793, USA
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22
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Affiliation(s)
- Y Funabiki
- Department of Neurology, Kyoto City Hospital, Kyoto, Japan
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23
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Abstract
Intramolecular cascade reaction has received much attention as a powerful methodology to construct a polycyclic framework in organic synthesis. We have been developing "boomerang-type cascade reaction" to construct a variety of polycyclic skeletons efficiently. In the above reactions, a nucleophilic function of substrates changes the character into an electrophile after the initial reaction, and the electrophilic group acts as a nucleophile in the second reaction. That is, the reaction center stepwise moves from one functional group back to the same one via other functional groups. The stream of the electron concerning the cascade reaction is like a locus of boomerang. We show here three different boomerang-type reactions via ionic species or free radicals. 1) Diastereoselective Michael-aldol reaction based on the chiral auxiliary method and enantioselective Michael-aldol reaction by the use of external chiral sources. 2) Short and efficient total syntheses of longifolane sesquiterpenes utilizing intramolecular double Michael addition as a key step. 3) Development of boomerang-type radical cascade reaction of halopolyenes to construct terpenoid skeletons and its regioselectivity.
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Affiliation(s)
- K Takasu
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
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24
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Takasu K, Ueno M, Ihara M. Facile and stereoselective access to nonracemic tricyclic cyclobutanes by asymmetric intramolecular Michael-aldol reaction: thermodynamic equilibrium and activation by iodonium ion. J Org Chem 2001; 66:4667-72. [PMID: 11421790 DOI: 10.1021/jo010207q] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Intramolecular Michael-aldol reactions of (-)-phenylmenthyl enoates tethered to cycloalkanone affords tricyclic cyclobutanes with high degrees of diastereochemical control. Kinetic and thermodynamic studies revealed that the Michael-aldol reaction is reversible under conditions in which trimethylsilyl iodide is used in the presence of hexamethyldisilazane at ambient temperature. Different levels of diastereoselectivity are observed when this cyclization process is carried out under kinetic vs thermodynamic conditions. Finally, an influence of added iodonium donors on the reaction rate has been noted.
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Affiliation(s)
- K Takasu
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aobayama, Sendai 980-8578, Japan.
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25
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Takasu K, Tanaka K, Fuji K. Conformation of 1,4-dineopentyl-2,5-cis-diphenylpiperazine and its diammonium salts: remarkable change in conformation depending upon the counter anion. Chem Pharm Bull (Tokyo) 2001; 49:655-6. [PMID: 11383628 DOI: 10.1248/cpb.49.655] [Citation(s) in RCA: 3] [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: 11/22/2022]
Abstract
The free base of 1,4-dineopentyl-2,5-diphenylpiperazine takes a chair conformation in CDCl3, while the conformation of its diammonium salts changes depending upon the counter anion.
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Affiliation(s)
- K Takasu
- Institute for Chemical Research, Kyoto University, Uji, Japan
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26
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Takasu K, Miyamoto H, Tanaka K, Taga T, Bando M, Fuji K. Conformational difference between mono- and diprotonated cis-2,5-diphenylpiperazinium salts in the solid state. Chem Pharm Bull (Tokyo) 2000; 48:2014-6. [PMID: 11145163 DOI: 10.1248/cpb.48.2014] [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: 11/22/2022]
Abstract
Monohydrochlorides of cis-2,5-diphenylpiperazine assume a chair conformation, while the corresponding dihydrochlorides assume a boat form regardless of the substituent(s) at the nitrogen atom.
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Affiliation(s)
- K Takasu
- Institute for Chemical Research, Kyoto University, Uji, Japan
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27
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Abstract
BACKGROUND We describe a rare case of malignant melanoma originating from the male urethra. METHODS/RESULTS This case, which presented a tan-colored lesion at the distal urethra on urethroscopy, was considered as transitional cell carcinoma by transurethral biopsy. Pathologic examination of widely resected urethra revealed scattering cells, which included melanin granules in cytoplasm, and then immunohistochemical stains established the diagnosis as amelanotic melanoma. Although partial penectomy and inguinal lymph node dissection were subsequently performed, 7 months later, total cystourethrectomy was required because of multifocal recurrence at the residual urethra. CONCLUSIONS In cases of amelanotic melanoma, it should be noted that a lack of melanin granules in tumor cells may lead pathologists and urologists to a misdiagnosis due to the histologic non-specific appearance. With respect to surgical management, of significance is the fact that malignant melanoma may progress multifocally along the total urethra; therefore, total urethrectomy should be considered as radical surgery for the primary site, even if the tumor is confined to the distal urethra.
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Affiliation(s)
- J Watanabe
- Department of Urology, Hamamatsu Rosai Hospital, Japan.
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28
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Takasu K, Mizutani S, Noguchi M, Makita K, Ihara M. Total synthesis of (+/-)-culmorin and (+/-)-longiborneol: an efficient construction of Tricyclo[6.3.0.0(3,9)]undecan-10-one by intramolecular double Michael addition. J Org Chem 2000; 65:4112-9. [PMID: 10866628 DOI: 10.1021/jo000185s] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The treatment of 4-[(5E)-6-methoxycarbonyl-5-hexenyl]-3, 4-dimethyl-2-cyclopenten-1-one (5) with LHMDS, TMSI-HMDS, Bu(2)OTf-HMDS, or TMSCl-NEt(3)-ZnCl(2) caused the intramolecular double Michael addition to afford tricyclo[6.3.0.0(3, 9)]undecan-10-one 12 in high yields with perfect stereoselectivity. The methodology was further elaborated to achieve efficient total syntheses of (+/-)-culmorin (1) and (+/-)-longiborneol (2). The common precursor 13 of them was obtained from 14 in 94% yield as a single isomer by the treatment with LHMDS. After the conversion of 13 into the corresponding acid 24 by hydrolysis, oxidative decarboxylation using S-(1-oxido-2-pyridinyl)-1,1,3, 3-tetramethylthiouronium hexafluorophosphate (HOTT, 27), followed by the Birch reduction, stereoselectively afforded (+/-)-culmorin (1). (+/-)-Longiborneol (2) was synthesized from 24 by the standard transformation. Additionally, the treatment of 24 with Pb(OAc)(4) led to 28 via uncommon migration. Its structure was determined by X-ray analysis after the transformation into the diketone 29.
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Affiliation(s)
- K Takasu
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aobayama, Sendai 980-8578, Japan
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29
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Watanabe J, Shimizu Y, Yamamoto S, Sasaguri T, Oida T, Souma T, Doi H, Hida S, Takasu K, Aoshima S. [Papillary adenocarcinoma of the prostate: report of 3 cases]. Hinyokika Kiyo 2000; 46:273-6. [PMID: 10845161] [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: 02/16/2023]
Abstract
We report here 3 cases of papillary adenocarcinoma of the prostate. In all 3 cases, the tumors were discernible on cystourethroscopy and transurethral biopsy established the diagnosis, whereas no significant finding was found on digital rectal examination. Although androgen deprivation therapy was administered in all cases, different surgical procedures were employed according to the stage in each case. In case 1, since the papillary tumor was confined within the prostatic urethra, complete resection was accomplished by transurethral resection (TUR). In case 2, since pelvic lymph nodes metastases were found, local radiation therapy was added. In case 3, since the patient had vesical invasion of tumor total cysto-prostatectomy was performed. Papillary adenocarcinoma of the prostate originates from the prostatic duct, resulting in existence at the "central portion" of the prostate gland. Cystourethroscopy and transurethral biopsy is helpful for diagnosis of this disease, whereas rectal digital examination is useless. As a surgical procedure for the primary site, TUR may be efficient for tumors confined within the prostatic urethra, although more extensive surgery may be necessary for those with a more invasive profile.
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Affiliation(s)
- J Watanabe
- Department of Urology, Hamamatsu Rousai Hospital
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30
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Abstract
Glomus tumours are relatively rare in the head and neck. We present a glomus tumour of the nasal cavity and paranasal sinuses in a 55-year-old man and describe the CT appearances of this tumour and its histopathology.
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Affiliation(s)
- T Shimono
- Department of Radiology, Kyoto City Hospital, Kyoto, Japan
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31
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Abstract
We present rare case of a uterine adenomatoid tumor. In order to characterize the diversity of immunoreactive antigens associated with mesothelial differentiation, we immunohistochemically examined the tumor's epithelioid and myofibromatoid components, as well as the biphasic pattern of its adenomatoid changes. Immunostaining of tumor cells was positive for high- and low-molecular-weight cytokeratins and vimentin. Specific immunoreactions with antibodies against desmin, alpha-actin, and the S-100 protein also were observed. The present adenomatoid tumor can be explained in terms of various transformations and typical alterations in mesothelioma cells: (1) the mesothelial cells had differentiated to epithelial and stromal components, concomitant with the presence of predominant reactive foci; (2) intermediate cells expressed different types of cytoskeletal intermediate filament proteins (IMPs); and (3) the patterns of fibromatoid and leiomyoid differentiation resembled those of a benign mesothelioma of the ovarian or oviductal peritoneum. Our immunohistochemical investigations indicated that the present tumor exhibited the histogenesis of a true mesothelioma, an adenomatoid mesothelioma.
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Affiliation(s)
- Y Satoh
- Department of Gynecology, Meiji College of Oriental Medicine, Kyoto, Japan
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32
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Katsuyama E, Kaneoka A, Higuchi K, Takasu K. Myoepithelioma of the soft palate. Acta Cytol 1997; 41:1856-8. [PMID: 9390158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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33
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Saitoh H, Okuno Y, Suzuki M, Takasu K, Kim YC, Mukaihara S, Kataoka M, Hayakawa K, Nishimura K. Various manifestations of early and minimally advanced gastric cancer in gastrointestinal series (GIS). Radiat Med 1997; 15:259-65. [PMID: 9445146] [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
Preoperative gastrointestinal series (GIS) have been used to assess the precise localization and extent of early and minimally advanced gastric cancers, which are sometimes difficult to define en face by endoscopy. The purpose of this study was to relate various GIS manifestations of gastric cancer with the pathological condition. We reviewed 99 gastric cancer cases (107 lesions), which were treated between 1992 and 1995, in which the lesions were depicted by GIS assisted by a nasogastric tube. The pathological conditions were determined from the resected specimens. Differences in anatomic location and in some morphological characteristics contribute to differences in histological classification. We conclude that lesion depiction by GIS assisted by nasogastric tube reflects the cancer's pathological characteristics, including histological type, malignant cycle, and modification by desmoplastic reaction.
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Affiliation(s)
- H Saitoh
- Department of Radiology, Kyoto City Hospital, Mibu, Kyoto, Japan
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34
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Kaneoka A, Obata T, Takasu K. [Immunohistochemical study of thymidine phosphorylase in uterine cervical intraepithelial neoplasia]. Rinsho Byori 1997; 45:483-6. [PMID: 9170977] [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
Studies have shown that thymidine phosphorylase (TdRPase) activity in various tumors is higher than that in normal tissues. We studied the immunohistochemical localization of TdRPase in uterine cervical intraepithelial neoplasia (CIN) using monoclonal antibody against TdRPase. Sixty-nine patients were studied: CIN 1, 14; CIN 2, 15; CIN 3 (severe dysplasia), 23; CIN 3 (carcinoma in situ), 17. Immunoreactivity for TdRPase was found in 29% of CIN 1, 40% of CIN 2, 70% of CIN 3 (severe dysplasia), and 88% of CIN 3 (carcinoma in situ), showing increasing incidence with the progression of tumor grade. Furthermore, in higher grade tumor, more immunoreactive cells were found with increased intensity of immunoreaction. Both nucleus and cytoplasm of atypical cells showed immunoreactivity in most TdRPase positive cases, while either nucleus or cytoplasm was positive in a few cases. The stromal tissues were negative for the antibody except 3 cases of CIN 3 (carcinoma in situ) in which the stromal tissues adjacent to the tumor was positive. Our data suggest that immunoreactivity of TdRPase in CIN may correlate with the grade of CIN.
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Affiliation(s)
- A Kaneoka
- Department of Laboratory Medicine, Kyoto City Hospital
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35
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Doi M, Takasu K, Samori T. [Blood chemical analysis. A. Effects of sample collection and subsequent processing on the test results--determination of blood ammonia level by direct deproteinization colorimetry]. Rinsho Byori 1996; Suppl 103:156-61. [PMID: 9190400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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36
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Abstract
Nonmedullary thyroid carcinoma was diagnosed in three of nine cases of primary hyperparathyroidism. In all three cases, diagnosis of primary hyperparathyroidism was made before that of thyroid carcinoma. In the first case, follicular carcinoma was incidentally detected during parathyroidectomy. In the second case, thyroid tumor was discovered during imaging studies for hyperparathyroidism. Papillary carcinoma and ectopic parathyroid was diagnosed postoperatively. In the third case, a thyroid lesion had been mistaken for a putative parathyroid lesion, but the diagnosis of papillary carcinoma was obtained. These cases suggest that preoperative examination for hyperparathyroidism should be carefully evaluated, considering possible concomitant thyroid lesions.
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Affiliation(s)
- M Tanaka
- Department of Internal Medicine, Kyoto City Hospital
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37
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Tokunaga Y, Mukaihara S, Tanaka M, Fujita T, Yokoyama T, Okamura R, Noguchi M, Takasu K, Ozawa K. Presacral epidermal cyst found in an adult male with a high CEA content: report of an unusual case. Surg Today 1994; 24:556-60. [PMID: 7919742 DOI: 10.1007/bf01884579] [Citation(s) in RCA: 13] [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: 01/27/2023]
Abstract
A 63-year-old Japanese man presented with constipation, having noticed flat stools for several years. Digital examination of the rectum, followed by barium enema, colono-fiberscopy, computed tomography (CT), and magnetic resonance imaging (MRI) revealed an oval mass located between the retrorectal and presacral space without any mucosal lesion. This mass had narrowed the rectal lumen by compressing the rectum anteriorly. Although the plasma levels of the tumor markers were within the normal range, those of the tumor contents were elevated with a carcinoembryonic antigen (CEA) of 118 ng/mL, while the alpha-fetoprotein (AFP) value was 1 ng/mL. The tumor was completely extirpated through an abdominal incision, and there has been no evidence of recurrence thus far. Histological examination showed that the tumor wall was made of keratinized stratified squamous epithelium without any cutaneous adnexal structure, and hence it was diagnosed as an epidermal cyst. CEA was identified in these benign epithelial cells by immunoperoxidase staining using a monoclonal antibody. To the best of our knowledge, there have been only four other cases with a presacral epidermal cyst documented in the Japanese literature, all of whom were female. Our patient is the first reported case of an adult male with a presacral epidermal cyst.
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Affiliation(s)
- Y Tokunaga
- Department of Surgery, Kyoto City Hospital, Japan
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38
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Hamamoto Y, Koyama H, Takasu K, Tateishi S. [An autopsy case of adenosquamous cell carcinoma of the extrahepatic bile duct with endobronchial mass obstructing the left main bronchus and masquerading as asthma]. Nihon Kyobu Shikkan Gakkai Zasshi 1994; 32:161-7. [PMID: 8164404] [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: 01/29/2023]
Abstract
A 65-year-old male was admitted with diagnosis of bronchial asthma. On admission, he was orthopneic, cyanotic and distressed. Marked hypoxemia with PaO2 of 31.1 mmHg was noted, but no obvious localized airway obstruction on plain chest X-ray film could be detected. These was minimal response to intensive treatment with steroid in addition to various bronchodilators on the presumed diagnosis of bronchial asthma. Two weeks later, chest X-ray disclosed complete atelectasis of the left lung. Stenosis of the left main bronchus with enlarged mediastinal lymph nodes on chest CT was suggested. Endoscopic examination disclosed complete obstruction of the left main bronchus just beyond the carina and polypoid tumors in the right main bronchus and basal segment bronchus. The biopsy specimens revealed squamous cell carcinoma. Chemotherapy with CDDP and VDS resulted in disappearance of atelectasis after one week and marked relief of respiratory distress. Four months later, at the completion of irradiation therapy, an abdominal tumor associated with pain appeared and bone scintigram showed multiple bone metastases. After four times chemotherapy including CDDP, hypercalcemia and renal hypofunction developed, and the patient died. Autopsy disclosed a tumor in the extrahepatic bile duct, cystic lesions of the pancreas and swelling of subcarinal lymph nodes, but no tumorous lesion in the lung and endobronchial tissue. Histological examination of the extrahepatic bile duct tumor revealed adenosquamous cell carcinoma, with predominantly squamous cell carcinoma. Other metastatic lesions consisted of squamous cell carcinoma. These findings are compatible with pulmonary metastases of adenosquamous cell carcinoma of the extrahepatic bile duct.
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Affiliation(s)
- Y Hamamoto
- Division of Chest Disease, Kyoto City Hospital
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39
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Koshiyama H, Ohgaki K, Hida S, Takasu K, Yumitori K, Shimatsu A, Koh T. Metastatic renal cell carcinoma to the pituitary gland presenting with hypopituitarism. J Endocrinol Invest 1992; 15:677-81. [PMID: 1479150 DOI: 10.1007/bf03345815] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A 57-year-old man with pituitary metastasis from renal cell carcinoma is reported. He underwent right nephrectomy and total pancreatectomy for renal cell carcinoma and its pancreatic metastasis, respectively. Imaging studies showed an intrasellar mass lesion. The examination revealed panhypopituitarism, diabetes insipidus and bitemporal hemianospia. Metastatic renal cell carcinoma was diagnosed by the biopsy of the pituitary tumor. Metastatic renal cell carcinoma to the pituitary gland, which is extremely rare, appears to have unique features of presenting with hypopituitarism and visual disturbance more frequently than other metastatic pituitary tumors.
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Affiliation(s)
- H Koshiyama
- Department of Medicine, Kyoto City Hospital, Japan
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40
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Kong KH, Takasu K, Inoue H, Takahashi K. Tyrosine-7 in human class Pi glutathione S-transferase is important for lowering the pKa of the thiol group of glutathione in the enzyme-glutathione complex. Biochem Biophys Res Commun 1992; 184:194-7. [PMID: 1567427 DOI: 10.1016/0006-291x(92)91177-r] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Previously, we reported the importance of Tyr7 for the catalytic activity of human class Pi glutathione S-transferase [Kong et al. (1992) Biochem. Biophys. Res. Comm., 182, 1122]. As an extension of this study, we investigated the pH dependence of kinetic parameters of the wild-type enzyme and the Y7F mutant. The replacement of Tyr7 with phenylalanine was found to alter the pH dependence of Vmax and Vmax/KmCDNB of the enzyme for conjugation of GSH with 1-chloro-2,4-dinitrobenzene (CDNB). The pKa of the thiol of GSH in the wild-type enzyme-GSH complex was estimated to be about 2.4 pK units lower than that in the Y7F-GSH complex. Tyr7 is thus considered to be important for catalytic activity in lowering the pKa of the thiol of GSH in the enzyme-GSH complex.
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Affiliation(s)
- K H Kong
- Department of Biophysics and Biochemistry, Faculty of Science, University of Tokyo, Japan
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41
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Kim YC, Taniguchi T, Kawarazaki S, Takasu K. [A case report of the limited form Wegener's granulomatosis]. Nihon Kyobu Shikkan Gakkai Zasshi 1991; 29:1083-7. [PMID: 1753528] [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: 12/28/2022]
Abstract
The classical from of Wegener's granulomatosis (WG) is a necrotizing granulomatous angiitis that involves the upper and lower airways, and kidneys. A limited form of WG is characterized by pulmonary lesions identical to those of classical form WG without renal involvement. The authors report a case of limited form WG. A 58-year-old Japanese woman was admitted because of an abnormal pulmonary shadow. Pathological examination revealed granulomatous angiitis consistent with WG. No other organ involvement was found. The pulmonary shadow improved with cyclophosphamide therapy. The patient is now well and without evidence of exacerbation of the disease 18 month after the discharge.
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Affiliation(s)
- Y C Kim
- Department of Clinical Laboratory Medicine, Kyoto City Hospital, Japan
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42
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Soejima H, Okada K, Matsuzaki S, Takasu K, Tajima Y, Kajiwara Y, Tanaka K, Kohara N, Matsumoto T, Eto T. [A case of gastric cancer (IIb) on the submucosal tumor (leiomyoma) of the stomach]. Nihon Shokakibyo Gakkai Zasshi 1990; 87:2526-30. [PMID: 2277442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- H Soejima
- Second Department of Surgery, Nagasaki University School of Medicine
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43
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Kaneoka A, Kawabe T, Takasu K. [Cytological and immunocytochemical study of prostatic carcinoma cell in voided urine. Usefulness of prostate-specific antigen in cytology specimen]. Rinsho Byori 1990; 38:1295-300. [PMID: 1703246] [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: 12/28/2022]
Abstract
The presence of prostatic carcinoma cells in voided urine was seldom noticed and these cells might be hardly distinguished from transitional cell carcinoma cells of the urinary tracts on the Papanicolaou-stained slides. We investigated the cytological findings and the localizations of prostate-specific antigen (PSA) in 7 cases of prostatic carcinomas (4 adenocarcinomas, 2 squamous cell carcinomas, and 1 undifferentiated carcinoma) which showed tumor cells in voided urine. The cytological findings of each histological types were as follows: adenocarcinoma cells were observed in small clusters of round or columnar cells with eccentric nuclei and prominent nucleoli with occasion, squamous cell carcinoma cells were characteristically well-differentiated keratinizing ones varying in shape and in staining reaction, and undifferentiated carcinoma cells were polyhedral and large ones with dense cytoplasm. After destaining of the Papanicolaou-stained slides, the positivity for PSA was demonstrated by immunocytochemical stain with PSA antiserum in cytoplasms of the tumor cells of 6 cases except for 1 undifferentiated carcinoma. We recognized that immunocytochemical detection of PSA was a useful mean in cytological detection for prostatic carcinomas in voided urine.
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Affiliation(s)
- A Kaneoka
- Department of Laboratory Medicine, Kyoto City Hospital
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44
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Abstract
Skin involvement of Hodgkin's disease, which typically occurs in the advanced stage, is rare and is associated with a poor prognosis. We report a case of Hodgkin's disease which recurred solely in the skin and followed a favorable clinical course. A 44-year-old Japanese man was diagnosed as having a mediastinal Hodgkin's disease in January 1983. After a complete remission, recurrent skin tumors appeared in the left supraclavicular and anterior chest regions in March 1988. No evidence of lymph nodes or visceral organ involvement was detected. The tumors regressed after chemotherapy. There is no evidence of the disease 7 months after discharge.
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Affiliation(s)
- Y C Kim
- Department of Clinical Laboratory Medicine, Kyoto City Hospital, Japan
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45
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Kim YC, Mori K, Ikeda H, Takasu K. [An autopsy case of esophageal carcinoma with esophago-pericardial fistula caused by artificial esophageal tube]. Nihon Naika Gakkai Zasshi 1989; 78:831-4. [PMID: 2794664 DOI: 10.2169/naika.78.831] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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46
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Hamamoto Y, Kawarazaki S, Taniguchi T, Hashimoto K, Okada H, Nakashima M, Takasu K, Kim YC. [A case of spontaneous pneumothorax due to metastasis of urinary bladder carcinoma to the lung]. Nihon Kyobu Shikkan Gakkai Zasshi 1989; 27:225-9. [PMID: 2747078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
We reported a case of spontaneous pneumothorax associated with pulmonary metastasis of urinary bladder carcinoma. A 73-year-old male patient complaining of chest pain and dyspnea was admitted, who had undergone transurethral resection of the urinary bladder carcinoma and diagnosis of inactive pulmonary tuberculosis based on the chest X-ray film finding one year previously. On admission, chest X-ray film showed right pneumothorax, and the re-expanded chest X-ray film revealed a cystic lesion in the right upper lung field adjacent to the anterior chest wall, corresponding to the previous pulmonary lesion. Three months later, right thoracotomy was performed because of relapse accompanying by profuse air-leakage. There was a pleural fistula on the surface of the cystic lesion and necrotic tissue in it. Drainage bronchi were involved by surrounding tumorous tissue. Histological examination of the specimen from the cyst wall disclosed metastasis of transitional cell carcinoma of the bladder. The probable mechanism of the spontaneous pneumothorax probable consisted of stenosis of the right B3 bronchus caused by the metastatic tumor produced a check valve mechanism leading to cystic lesion, the rupture of which caused the spontaneous pneumothorax.
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47
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Aoki J, Yamamoto I, Kitamura N, Sone T, Itoh H, Torizuka K, Takasu K. End plate of the discovertebral joint: degenerative change in the elderly adult. Radiology 1987; 164:411-4. [PMID: 3602378 DOI: 10.1148/radiology.164.2.3602378] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Degenerative change at the end plate of the discovertebral joint was studied in the elderly adult by correlating the histologic and radiographic findings. Undecalcified ground sections were made from 21 autopsied lumbar spines that demonstrated no evidence of disease except age-related osteoporosis. Histologic examination showed that the cartilaginous end plates were degenerated to various extents and were replaced by subchondral bone proliferation (endochondral bone formation) in the direction of the joint space. In advanced cases, this histologic finding was reflected in radiographs as a subchondral sclerotic zone protruding toward the disk space. The degree of end-plate change was positively correlated with disk-space narrowing and the vacuum phenomenon (degeneration of the nucleus pulposus) but not with osteoporosis and vertebral compression. Anatomically and functionally, this may be the most common form of degeneration at the discovertebral joint end plate. Further study will be necessary to clarify the process.
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48
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Mochizuki T, Okazaki T, Ishikura H, Izumi Y, Tashima M, Sawada H, Uchino H, Konishi T, Ikeguchi S, Takasu K. Effect of diltiazem on the cardiotoxicity induced by adriamycin in rabbits. Nihon Gan Chiryo Gakkai Shi 1987; 22:539-49. [PMID: 3655481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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49
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Kaneoka A, Takasu K, Amawashi T. [Immunohistochemical demonstration of S 100 protein in melanin-producing tumors after bleaching for melanin]. Rinsho Byori 1987; 35:316-8. [PMID: 3302406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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50
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Gemma H, Honda A, Akiyama J, Kanaya T, Eto T, Hirata T, Hirasawa I, Takasu K, Tamura M, Suzuki H. [A case of miliary tuberculosis with nodular dissemination to the brain demonstrated by computed tomography]. Kekkaku 1985; 60:455-9. [PMID: 4068451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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