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Matsuda M, Suzuki M, Ajiro Y, Shinozaki T, Sakagami S, Yonezawa K, Shimizu M, Funada J, Takenaka T, Morita Y, Iguchi M, Abe M, Akao M, Hasegawa K, Wada H. Involvement of growth differentiation factor 15 in paradoxical relationship between body mass index and mortality in patients with suspected or known coronary artery disease; The ANOX Study. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2391] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Obesity is a well-established risk factor for type 2 diabetes mellitus, hypertension and dyslipidemia, leading to coronary artery disease (CAD). Nevertheless, body mass index (BMI) is inversely associated with cardiovascular (CV) mortality in patients with cardiac disorders, termed “obesity paradox”. However, the underlying mechanism remains unclear.
Purpose
To clarify important factors involved in the pathogenesis of obesity paradox.
Methods
Using data from a multicenter, prospective cohort of 2,418 patients with suspected or known CAD enrolled in the ANOX study, we assessed the relationship between BMI at baseline and the incidence of CV death over 3 years, and investigated the involvement of several endocrine factors which were previously reported to have some roles in obesity and heart diseases, such as adiponectin, N-terminal pro-brain natriuretic peptide (NT-proBNP) and growth differentiation factor 15 (GDF-15), in the relationship between BMI and CV death.
Results
In Kaplan-Meier analyses, the lower quartiles of BMI and the higher quartiles of adiponectin levels were paradoxically associated with the higher cumulative incidence of CV death. To clarify the important factors involved in the paradoxical association between BMI or adiponectin and mortality, we first investigated independent determinants for BMI and adiponectin levels respectively, using multiple stepwise regression analyses among many clinical factors, and then narrow down the prognostic factors commonly associated with BMI and adiponectin, which were age, hemoglobin and NT-proBNP. Interestingly, circulating levels of GDF15 were significantly correlated with NT-proBNP levels, and the presence of anemia raised the gradient of the correlation line in a scatter plot (without anemia, r=0.139, p<0.0001; with anemia, r=0.228, p<0.0001). Moreover, the highest GDF15 quartile showed significantly lower BMI and higher adiponectin levels compared to the lower quartiles (p<0.001 and p<0.001, respectively, by Student t-test). In Cox proportional hazard models, hazard ratios (HRs) of BMI (per 1-unit increase) were 0.90 (95% confidence interval [CI], 0.85–0.96) for CV death. Additional adjustment for hemoglobin, NT-proBNP, adiponectin or GDF15 diminished the statistical significance (HR, 0.92 [95% CI, 0.87–0.99], 0.95 [0.89–1.01], 0.92 [0.87–0.99], or 0.93 [0.87–0.99], respectively).
Conclusions
The lower BMI and the higher adiponectin levels were paradoxically associated with the higher incidence of CV death in patients with CAD. This paradox may be mediated by cardiac endocrine factors induced by cardiac stresses, including GDF-15 in addition to natriuretic peptides.
Funding Acknowledgement
Type of funding sources: Public Institution(s). Main funding source(s): The ANOX study is supported by a Grant-in-Aid for Clinical Research from the National Hospital Organization.
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Affiliation(s)
- M Matsuda
- National Hospital Organization Kure Medical Center and Chugoku Cancer Center , Kure , Japan
| | - M Suzuki
- National Hospital Organization Saitama Hospital , Wako , Japan
| | - Y Ajiro
- National Hospital Organization Yokohama Medical Center , Yokohama , Japan
| | - T Shinozaki
- National Hospital Organization Sendai Medical Center , Sendai , Japan
| | - S Sakagami
- National Hospital Organization Kanazawa Medical Center , Kanazawa , Japan
| | - K Yonezawa
- National Hospital Organization Hakodate National Hospital , Hakodate , Japan
| | - M Shimizu
- National Hospital Organization Kobe Medical Center , Kobe , Japan
| | - J Funada
- National Hospital Organization Ehime Medical Center , Toon , Japan
| | - T Takenaka
- National Hospital Organization Hokkaido Medical Center , Sapporo , Japan
| | - Y Morita
- National Hospital Organization Sagamihara National Hospital , Sagamihara , Japan
| | - M Iguchi
- National Hospital Organization Kyoto Medical Center , Kyoto , Japan
| | - M Abe
- National Hospital Organization Kyoto Medical Center , Kyoto , Japan
| | - M Akao
- National Hospital Organization Kyoto Medical Center , Kyoto , Japan
| | - K Hasegawa
- National Hospital Organization Kyoto Medical Center , Kyoto , Japan
| | - H Wada
- National Hospital Organization Kyoto Medical Center , Kyoto , Japan
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2
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Suzuki M, Kotani K, Matsuda M, Ajiro Y, Shinozaki T, Sakagami S, Yonezawa K, Shimizu M, Funada J, Takenaka T, Wada M, Abe M, Akao M, Hasegawa K, Wada H. Serum amyloid A-low-density-lipoprotein complex and mortality in patients with suspected or known coronary artery disease: the ANOX study. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1161] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Serum amyloid A-low-density-lipoprotein (SAA-LDL) is a complex formed from the oxidative interaction between SAA and LDLs. A relatively small-scale study has shown that circulating SAA-LDL levels may serve as a prognostic marker in patients with stable coronary artery disease (CAD). However, the prognostic value of SAA-LDL should be confirmed in a larger-scale cohort study.
Methods
Using data from a multicenter, prospective cohort of 2416 patients with suspected or known CAD enrolled in the ANOX (Development of Novel Biomarkers Related to Angiogenesis or Oxidative Stress to Predict Cardiovascular Events) study, we assessed the prognostic value of serum levels of SAA-LDL. The primary outcome was all-cause death. The secondary outcomes were cardiovascular death and major adverse cardiovascular events (MACE) defined as a composite of cardiovascular death, nonfatal myocardial infarction, and nonfatal stroke. Patients were followed up over 3 years.
Results
Stepwise regression analysis including baseline data on potential clinical confounders (i.e., age, sex, body mass index, hypertension, dyslipidemia, diabetes, current smoking, estimated glomerular filtration rate, the Gensini score, previous myocardial infarction, previous stroke, previous heart failure hospitalization, atrial fibrillation, malignancies, anemia, antihypertensive drug use, statin use, and aspirin use) and established cardiovascular biomarkers (i.e., N-terminal pro-brain natriuretic peptide, high-sensitivity cardiac troponin I [hs-cTnI], and high-sensitivity C-reactive protein [hs-CRP]) revealed that independent determinants of SAA-LDL levels were female sex, dyslipidemia, the Gensini score, absence of statin use, hs-cTnI, and hs-CRP. After adjusting for potential clinical confounders and established cardiovascular biomarkers, the highest quartile of SAA-LDL levels (vs. the lowest quartile) was significantly associated with the incidence of all-cause death (hazard ratio [HR], 1.51; 95% confidence interval [CI], 1.02–2.26), but not with that of cardiovascular death (HR, 1.11; 95% CI, 0.59–2.10) or MACE (HR, 1.57; 95% CI, 0.97–2.57). Stratified analyses revealed that this association was pronounced in patients with low hs-cTnI (<75th percentile) (HR, 1.85; 95% CI, 1.06–3.30) and in patients with low hs-CRP levels (≤1.0 mg/L) (HR, 2.30; 95% CI, 1.17–4.79).
Conclusions
Elevated SAA-LDL levels were independently associated with the risk of all-cause death in patients with suspected or known CAD. The SAA-LDL level appears to serve as a prognostic biomarker for risk stratification in relatively low-risk patients with low hs-cTnI (<75th percentile) or low hs-CRP (≤1.0 mg/L).
Funding Acknowledgement
Type of funding sources: Public Institution(s). Main funding source(s): The ANOX study is supported by a Grant-in-Aid for Clinical Research from the National Hospital Organization.
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Affiliation(s)
- M Suzuki
- National Hospital Organization Saitama Hospital , Wako , Japan
| | - K Kotani
- Jichi Medical University , Shimotsuke , Japan
| | - M Matsuda
- National Hospital Organization Kure Medical Center and Chugoku Cancer Center , Kure , Japan
| | - Y Ajiro
- National Hospital Organization Yokohama Medical Center , Yokohama , Japan
| | - T Shinozaki
- National Hospital Organization Sendai Medical Center , Sendai , Japan
| | - S Sakagami
- National Hospital Organization Kanazawa Medical Center , Kanazawa , Japan
| | - K Yonezawa
- National Hospital Organization Hakodate National Hospital , Hakodate , Japan
| | - M Shimizu
- National Hospital Organization Kobe Medical Center , Kobe , Japan
| | - J Funada
- National Hospital Organization Ehime Medical Center , Toon , Japan
| | - T Takenaka
- National Hospital Organization Hokkaido Medical Center , Sapporo , Japan
| | - M Wada
- National Hospital Organization Kyoto Medical Center , Kyoto , Japan
| | - M Abe
- National Hospital Organization Kyoto Medical Center , Kyoto , Japan
| | - M Akao
- National Hospital Organization Kyoto Medical Center , Kyoto , Japan
| | - K Hasegawa
- National Hospital Organization Kyoto Medical Center , Kyoto , Japan
| | - H Wada
- National Hospital Organization Kyoto Medical Center , Kyoto , Japan
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Wada H, Shinozaki T, Suzuki M, Sakagami S, Ajiro Y, Funada J, Matsuda M, Shimizu M, Takenaka T, Morita Y, Yonezawa K, Kotani K, Abe M, Akao M, Hasegawa K. Impact of atrial fibrillation on soluble fms-like tyrosine kinase-1 and cardiovascular events in patients with suspected or known coronary artery disease: the EXCEED-J study. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1390] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Soluble fms-like tyrosine kinase-1 (sFlt-1), a vascular endothelial growth factor (VEGF) antagonist, has been suggested as a marker of endothelial dysfunction. Circulating sFlt-1 levels are associated with adverse outcomes in patients with preeclampsia, chronic kidney disease, and heart failure. Atrial fibrillation (AF) and coronary artery disease (CAD) are both associated with endothelial dysfunction. However, whether sFlt-1 can predict cardiovascular (CV) events and whether AF modifies the relationship between sFlt-1 and CV events in patients with suspected or known CAD are unknown.
Methods
We performed a nationwide, multicenter, prospective cohort study to determine the prognostic value of sFlt-1 and other biomarkers in patients with suspected or known CAD undergoing elective angiography. Heparin-free fasting serum was collected from the peripheral vein to determine levels of sFlt-1, VEGF, placental growth factor, cystatin C, neutrophil gelatinase-associated lipocalin, N-terminal pro-brain natriuretic peptide (NT-proBNP), high-sensitivity cardiac troponin-I (hs-cTnI), and high-sensitivity C-reactive protein (hs-CRP). The primary outcome was 3-point major adverse CV events (3P-MACE) defined as a composite of CV death, nonfatal myocardial infarction, and nonfatal stroke. The secondary outcomes were all-cause death, CV death, and 5P-MACE defined as a composite of 3P-MACE, heart failure hospitalization, and coronary/peripheral artery revascularization.
Results
3311 patients were consecutively enrolled between Nov 2013 and May 2017. After excluding 56 ineligible patients, 3255 patients (324 AF and 2931 non-AF) were followed up over 3 years (follow-up rate, 99%). During the follow-up, 156 patients developed 3P-MACE, 215 died from any cause, 82 died from cardiovascular disease, and 1361 developed 5P-MACE. The sFlt-1 level was significantly higher in AF compared to non-AF patients (p<0.001). Stepwise regression analysis revealed that the sFlt-1 level was independently associated with AF. After adjusting for potential clinical confounders, serum levels of sFlt-1, NT-proBNP, hs-cTnI and cystatin C, but not other biomarkers, were significantly associated with 3P-MACE in the entire cohort. These associations were still significant in non-AF patients, whereas only the sFlt-1 level was significantly associated with 3P-MACE in AF patients. Serum levels of sFlt-1, but not other biomarkers, were also significantly associated with CV death in AF patients. Among the biomarkers, only the hs-CRP level was significantly associated with all-cause death, and no biomarker was significantly associated with 5P-MACE in AF patients. Furthermore, sFlt-1 provided an incremental prognostic information for 3P-MACE to the model with potential clinical confounders in AF, but not in non-AF patients.
Conclusions
Serum levels of sFlt-1 were significantly associated with 3P-MACE in patients with suspected or known CAD. This association was pronounced in AF patients.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): The EXCEED-J study is supported by Health Labour Sciences Research Grant (2013-2014), AMED (2015-2017, Grant Number JP17ek0210008) and Grant-in-Aid for Clinical Research from the National Hospital Organization (2018-2020).
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Affiliation(s)
- H Wada
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - T Shinozaki
- National Hospital Organization Sendai Medical Center, Sendai, Japan
| | - M Suzuki
- National Hospital Organization Saitama Hospital, Wako, Japan
| | - S Sakagami
- National Hospital Organization Kanazawa Medical Center, Kanazawa, Japan
| | - Y Ajiro
- National Hospital Organization Yokohama Medical Center, Yokohama, Japan
| | - J Funada
- National Hospital Organization Ehime Medical Center, Toon, Japan
| | - M Matsuda
- National Hospital Organization Kure Medical Center and Chugoku Cancer Center, Kure, Japan
| | - M Shimizu
- National Hospital Organization Kobe Medical Center, Kobe, Japan
| | - T Takenaka
- National Hospital Organization Hokkaido Medical Center, Sapporo, Japan
| | - Y Morita
- National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan
| | - K Yonezawa
- National Hospital Organization Hakodate National Hospital, Hakodate, Japan
| | - K Kotani
- Jichi Medical University,, Shimotsuke, Japan
| | - M Abe
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Akao
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - K Hasegawa
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
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4
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Kitano D, Yonezawa K, Iwae S, Sakakibara S. Internal jugular vein thrombosis and pulmonary thromboembolism after head and neck reconstructive surgery. J Plast Reconstr Aesthet Surg 2020; 74:1239-1245. [PMID: 33288470 DOI: 10.1016/j.bjps.2020.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 10/07/2020] [Accepted: 11/12/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Free flap failure secondary to internal jugular vein thrombosis (IJVT) is a significant complication after head and neck reconstructive surgery. A consensus has not yet been reached among reconstructive surgeons regarding the treatment of IJVT. METHODS We retrospectively evaluated the incidence of IJVT in 118 patients who underwent free flap reconstruction at Hyogo Cancer Center, Akashi, Japan. The occurrence of IJVT-related flap circulation crisis and pulmonary thromboembolism (PTE) was studied. This study was approved by the institutional ethics committee, and written informed consent was obtained from each patient. RESULTS From 118 patients who underwent head and neck reconstructive surgery, we included 116 internal jugular veins (IJVs) preserved after neck dissection in the present study. IJVT was confirmed in 25 (21.6%) IJVs from 23 patients. One patient (0.8%) developed venous congestion due to IJVT, which resulted in total flap necrosis. Two patients (1.7%) exhibited PTE associated with IJVT. They were treated with direct oral anticoagulants for 3 months and were discharged without any sequelae. CONCLUSION Our results suggest that IJVT after head and neck reconstructive surgery caused not only flap circulation crisis but also PTE. Reconstructive surgeons should be aware of the potential risks due to serious complications associated with IJVT.
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Affiliation(s)
- D Kitano
- Department of Plastic Surgery, Hyogo Cancer Center, 13-70, Kitaoji-cho, Akashi, Hyogo 673-8558, Japan; Department of Plastic Surgery, Kobe University Graduate School of Medicine, 7-5-2, Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan
| | - K Yonezawa
- Department of Head and Neck Surgery, Hyogo Cancer Center, 13-70, Kitaoji-cho, Akashi, Hyogo 673-0021, Japan
| | - S Iwae
- Department of Head and Neck Surgery, Hyogo Cancer Center, 13-70, Kitaoji-cho, Akashi, Hyogo 673-0021, Japan
| | - S Sakakibara
- Department of Plastic Surgery, Hyogo Cancer Center, 13-70, Kitaoji-cho, Akashi, Hyogo 673-8558, Japan; Department of Plastic Surgery, Kobe University Graduate School of Medicine, 7-5-2, Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan.
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5
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Wada H, Unoki T, Suzuki M, Matsuda M, Ajiro Y, Shinozaki T, Sakagami S, Yonezawa K, Shimizu M, Funada J, Takenaka T, Kotani K, Abe M, Akao M, Hasegawa K. Impact of glucose tolerance status on the relationship between vascular endothelial growth factor D and mortality in patients with suspected coronary artery disease: a subanalysis of the ANOX study. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3061] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Vascular endothelial growth factor D (VEGF-D) is a secreted glycoprotein that can act as lymphangiogenic and angiogenic growth factors through binding to its specific receptors, VEGFR-3 and VEGFR-2. VEGF-D signaling via VEGFR-3 plays an important role in lipoprotein metabolisms which may contribute to coronary artery disease (CAD). We recently reported that serum levels of VEGF-D are independently associated with mortality in patients with suspected or known CAD. However, the impact of glucose tolerance status on the relationship between VEGF-D and mortality in patients with suspected CAD is unclear.
Methods
Serum VEGF-D levels were measured in 1,717 patients with suspected CAD undergoing elective coronary angiography, enrolled in the development of novel biomarkers related to angiogenesis or oxidative stress to predict CV events (ANOX) study, and followed up for 3 years. After excluding 67 patients with no HbA1c data, 1,650 patients were divided into 3 groups according to the glucose tolerance status: diabetes (DM, n=693), prediabetes (preDM, n=541) defined as an HbA1c of 5.7 to 6.4%, and normal glucose tolerance (NGT, n=416) defined as an HbA1c of 5.6% or less. The outcomes were total death, CV death, and major adverse CV events (MACE) defined as a composite of CV death, nonfatal myocardial infarction, and nonfatal stroke.
Results
During the follow-up, 80 DM, 45 preDM, and 30 NGT patients died from any cause, 24 DM, 13 preDM, and 12 NGT died from CV disease, and 54 DM, 30 preDM, and 19 NGT developed MACE. After adjustment for established risk factors, VEGF-D levels were significantly associated with total death (hazard ratio [HR] for 1-SD increase, 1.28; 95% confidence interval [CI], 1.12–1.47), but not with CV death (HR, 1.20; 95% CI, 0.93–1.52) or MACE (HR, 1.23; 95% CI, 0.997–1.48) in DM; VEGF-D levels were not significantly associated with total death (HR, 0.97; 95% CI, 0.70–1.34), CV death (HR, 1.39; 95% CI, 0.92–2.11), or MACE (HR, 1.09; 95% CI, 0.74–1.50) in preDM; VEGF-D levels were not significantly associated with total death (HR, 1.34; 95% CI, 0.98–1.84), CV death (HR, 1.32; 95% CI, 0.78–2.13), or MACE (HR, 1.01; 95% CI, 0.66–1.46) in NGT. Even after incorporation of N-terminal pro-brain natriuretic peptide, contemporary sensitive cardiac troponin I, and high-sensitivity C-reactive protein into a model with established risk factors, the addition of VEGF-D levels further improved the prediction of total death (P=0.040 for continuous net reclassification improvement [NRI], P=0.007 for integrated discrimination improvement [IDI]), but not that of CV death or MACE in DM, while it did not significantly improved the prediction of total death, CV death, or MACE either in preDM or in NGT.
Conclusions
The VEGF-D level was independently associated with total death in DM, but not in preDM or in NGT. The relationship between VEGF-D and total mortality may depend on the presence of DM in patients with suspected CAD.
Funding Acknowledgement
Type of funding source: Public Institution(s). Main funding source(s): The ANOX study is supported by a Grant-in-Aid for Clinical Research from the National Hospital Organization.
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Affiliation(s)
- H Wada
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - T Unoki
- Saiseikai Kumamoto Hospital, Kumamoto, Japan
| | - M Suzuki
- National Hospital Organization Saitama Hospital, Wako, Japan
| | - M Matsuda
- National Hospital Organization Kure Medical Center and Chugoku Cancer Center, Kure, Japan
| | - Y Ajiro
- National Hospital Organization Yokohama Medical Center, Yokohama, Japan
| | - T Shinozaki
- National Hospital Organization Sendai Medical Center, Sendai, Japan
| | - S Sakagami
- National Hospital Organization Kanazawa Medical Center, Kanazawa, Japan
| | - K Yonezawa
- National Hospital Organization Hakodate National Hospital, Hakodate, Japan
| | - M Shimizu
- National Hospital Organization Kobe Medical Center, Kobe, Japan
| | - J Funada
- National Hospital Organization Ehime Medical Center, Toon, Japan
| | - T Takenaka
- National Hospital Organization Hokkaido Medical Center, Sapporo, Japan
| | - K Kotani
- Jichi Medical University, Shimotsuke, Japan
| | - M Abe
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Akao
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - K Hasegawa
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
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6
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Iguchi M, Suzuki M, Matsuda M, Ajiro Y, Shinozaki T, Sakagami S, Yonezawa K, Shimizu M, Funada J, Takenaka T, Wada M, Abe M, Akao M, Hasegawa K, Wada H. Impact of anemia on the relationship between vascular endothelial growth factor C and mortality in patients with suspected or known coronary artery disease: a subanalysis of the ANOX study. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1347] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background
The lymphatic system has been suggested to play an important role in cholesterol metabolism and cardiovascular (CV) disease. Recently, we demonstrated that serum levels of vascular endothelial growth factor C (VEGF-C), a central player of lymphangiogenesis, are inversely and independently associated with the risk of all-cause mortality in patients with suspected or known coronary artery disease (CAD). However, the impact of anemia on the relationship between VEGF-C and mortality in those patients is unclear.
Methods
Serum VEGF-C levels were measured in 2,418 patients with suspected or known CAD undergoing elective coronary angiography, enrolled in the development of novel biomarkers related to angiogenesis or oxidative stress to predict CV events (ANOX) study, and followed up for 3 years. Anemia was defined as a hemoglobin level of less than 13 g/dL in men and <12 g/dL in women. Patients were divided into 2 groups according to the presence (anemic, n=882) or absence (non-anemic, n=1,536) of anemia. The primary outcome was all-cause death. The secondary outcomes were CV death, and major adverse CV events (MACE) defined as a composite of CV death, nonfatal myocardial infarction, and nonfatal stroke.
Results
During the follow-up, 164 anemic and 90 non-anemic patients died from any cause, 64 anemic and 24 non-anemic patients died from CV disease, and 96 anemic and 69 non-anemic patients developed MACE. After adjustment for established risk factors, VEGF-C levels were significantly and inversely associated with all-cause death (hazard ratio [HR] for 1-SD increase, 0.71; 95% confidence interval [CI], 0.59–0.84), CV death (HR, 0.60; 95% CI, 0.44–0.79), and MACE (HR, 0.76; 95% CI, 0.60–0.95) in anemic, while VEGF-C levels were not significantly associated with all-cause death (HR, 0.87; 95% CI, 0.69–1.11), CV death (HR, 1.32; 95% CI, 0.85–1.93), or MACE (HR, 1.12; 95% CI, 0.87–1.42) in non-anemic patients. Even after incorporation of N-terminal pro-brain natriuretic peptide, contemporary sensitive cardiac troponin I, and high-sensitivity C-reactive protein into a model with established risk factors, the addition of VEGF-C levels further improved the prediction of all-cause death (P<0.001 for continuous net reclassification improvement [NRI], P=0.006 for integrated discrimination improvement [IDI]) and CV death (P<0.001 for NRI, P=0.005 for IDI), but not that of MACE (P=0.021 for NRI, P=0.059 for IDI) in anemic, whereas the addition of VEGF-C levels did not improved the prediction of all-cause death (P=0.234 for NRI, P=0.415 for IDI), CV death (P=0.190 for NRI, P=0.392 for IDI) or MACE (P=0.897 for NRI, P=0.128 for IDI) in non-anemic patients.
Conclusions
The VEGF-C level was inversely and independently associated with all-cause and CV mortality in anemic, but not in non-anemic patients with suspected or known CAD. The inverse relationship between VEGF-C and mortality may depend on the presence of anemia.
Funding Acknowledgement
Type of funding source: Public Institution(s). Main funding source(s): The ANOX study is supported by a Grant-in-Aid for Clinical Research from the National Hospital Organization.
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Affiliation(s)
- M Iguchi
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Suzuki
- National Hospital Organization Saitama Hospital, Wako, Japan
| | - M Matsuda
- National Hospital Organization Kure Medical Center and Chugoku Cancer Center, Kure, Japan
| | - Y Ajiro
- National Hospital Organization Yokohama Medical Center, Yokohama, Japan
| | - T Shinozaki
- National Hospital Organization Sendai Medical Center, Sendai, Japan
| | - S Sakagami
- National Hospital Organization Kanazawa Medical Center, Kanazawa, Japan
| | - K Yonezawa
- National Hospital Organization Hakodate National Hospital, Hakodate, Japan
| | - M Shimizu
- National Hospital Organization Kobe Medical Center, Kobe, Japan
| | - J Funada
- National Hospital Organization Ehime Medical Center, Toon, Japan
| | - T Takenaka
- National Hospital Organization Hokkaido Medical Center, Sapporo, Japan
| | - M Wada
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Abe
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Akao
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - K Hasegawa
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - H Wada
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
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7
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Wada H, Takagi D, Suzuki M, Matsuda M, Ajiro Y, Shinozaki T, Sakagami S, Yonezawa K, Shimizu M, Funada J, Takenaka T, Wada K, Abe M, Akao M, Hasegawa K. Impact of chronic kidney disease on the relationship between vascular endothelial growth factor C and mortality in patients with suspected coronary artery disease: a subanalysis of the ANOX study. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3321] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
The lymphatic system has been suggested to play an important role in cholesterol metabolism and cardiovascular (CV) disease. Recently, we demonstrated that serum levels of vascular endothelial growth factor C (VEGF-C), a central player of lymphangiogenesis, are inversely and independently associated with the risk of all-cause mortality in patients with suspected or known coronary artery disease (CAD). However, the impact of chronic kidney disease (CKD) on the relationship between VEGF-C and mortality in patients with suspected CAD is unclear.
Methods
Serum VEGF-C levels were measured in 1,717 patients with suspected but no history of CAD undergoing elective coronary angiography, enrolled in the development of novel biomarkers related to angiogenesis or oxidative stress to predict CV events (ANOX) study, and followed up for 3 years. Patients were divided into 2 groups according to the presence (CKD, n=674) or absence (non-CKD, n=1,043) of CKD. The primary outcome was all-cause death. The secondary outcomes were CV death, and major adverse CV events (MACE) defined as a composite of CV death, nonfatal myocardial infarction, and nonfatal stroke.
Results
During the follow-up, 95 CKD and 66 non-CKD patients died from any cause, 37 CKD and 13 non-CKD died from CV disease, and 61 CKD and 43 non-CKD developed MACE. After adjustment for established risk factors, VEGF-C levels were significantly and inversely associated with all-cause death (hazard ratio [HR] for 1-SD increase, 0.72; 95% confidence interval [CI], 0.57–0.90) and CV death (HR, 0.69; 95% CI, 0.48–0.97), but not with MACE (HR, 0.78; 95% CI, 0.60–1.03) in CKD, while VEGF-C levels were significantly and inversely associated with all-cause death (HR, 0.69; 95% CI, 0.52–0.91), but not with CV death (HR, 0.91; 95% CI, 0.50–1.66) or MACE (HR, 1.09; 95% CI, 0.81–1.44) in non-CKD. Even after incorporation of N-terminal pro-brain natriuretic peptide, contemporary sensitive cardiac troponin I, and high-sensitivity C-reactive protein into a model with established risk factors, the addition of VEGF-C levels further improved the prediction of all-cause death (P=0.047 for continuous net reclassification improvement [NRI], P=0.048 for integrated discrimination improvement [IDI]), but not that of CV death (P=0.016 for NRI, P=0.245 for IDI) or MACE (P=0.166 for NRI, P=0.311 for IDI) in CKD, whereas the addition of VEGF-C levels did not improve the prediction of all-cause death (P=0.053 for NRI, P=0.012 for IDI), CV death (P=0.864 for NRI, P=0.602 for IDI) or MACE (P=0.999 for NRI, P=0.154 for IDI) in non-CKD.
Conclusions
The VEGF-C level inversely and independently predicted all-cause mortality in CKD, but not in non-CKD patients with suspected CAD. The inverse relationship between VEGF-C and all-cause mortality in patients with suspected CAD seems to be remarkable in the presence of CKD.
Funding Acknowledgement
Type of funding source: Public Institution(s). Main funding source(s): The ANOX study is supported by a Grant-in-Aid for Clinical Research from the National Hospital Organization.
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Affiliation(s)
- H Wada
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - D Takagi
- Saiseikai Kumamoto Hospital, Kumamoto, Japan
| | - M Suzuki
- National Hospital Organization Saitama Hospital, Wako, Japan
| | - M Matsuda
- National Hospital Organization Kure Medical Center and Chugoku Cancer Center, Kure, Japan
| | - Y Ajiro
- National Hospital Organization Yokohama Medical Center, Yokohama, Japan
| | - T Shinozaki
- National Hospital Organization Sendai Medical Center, Sendai, Japan
| | - S Sakagami
- National Hospital Organization Kanazawa Medical Center, Kanazawa, Japan
| | - K Yonezawa
- National Hospital Organization Hakodate National Hospital, Hakodate, Japan
| | - M Shimizu
- National Hospital Organization Kobe Medical Center, Kobe, Japan
| | - J Funada
- National Hospital Organization Ehime Medical Center, Toon, Japan
| | - T Takenaka
- National Hospital Organization Hokkaido Medical Center, Sapporo, Japan
| | - K Wada
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Abe
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Akao
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - K Hasegawa
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
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8
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Wada H, Suzuki M, Matsuda M, Ajiro Y, Shinozaki T, Sakagami S, Yonezawa K, Shimizu M, Funada J, Takenaka T, Wada M, Iguchi M, Abe M, Akao M, Hasegawa K. Impact of anemia on the relationships of growth differentiation factor 15 with mortality and cardiovascular events in patients with suspected or known coronary artery disease: the ANOX study. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2934] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Growth differentiation factor 15 (GDF-15) is a stress-responsive cytokine that plays an important role in the regulation of the inflammatory response, growth and cell differentiation. An elevated GDF-15 was found in various conditions including anemia and stable coronary artery disease (CAD), and it was reported to predict mortality and cardiovascular (CV) events in general population and in patients with established CAD. However, the impact of anemia on the relationships of GDF-15 with mortality and CV events in patients with suspected or known CAD is unclear.
Methods
Serum GDF-15 levels were measured in 2,418 patients with suspected or known CAD undergoing elective coronary angiography, enrolled in the development of novel biomarkers related to angiogenesis or oxidative stress to predict CV events (ANOX) study, and followed up for 3 years. Anemia was defined as a hemoglobin level of less than 13 g/dL in men and <12 g/dL in women. Patients were divided into 2 groups according to the presence (anemic, n=882) or absence (non-anemic, n=1,536) of anemia. The primary outcome was all-cause death. The secondary outcomes were CV death, and major adverse CV events (MACE) defined as a composite of CV death, nonfatal myocardial infarction, and nonfatal stroke.
Results
During the follow-up, 164 anemic and 90 non-anemic patients died from any cause, 64 anemic and 24 non-anemic patients died from CV disease, and 96 anemic and 69 non-anemic patients developed MACE. After adjustment for established risk factors, GDF-15 levels were significantly associated with all-cause death (hazard ratio [HR] for 1-SD increase, 1.75; 95% confidence interval [CI], 1.51–2.04), CV death (HR, 1.67; 95% CI, 1.30–2.13), and MACE (HR, 1.46; 95% CI, 1.18–1.81) in anemic, while GDF-15 levels were also significantly associated with all-cause death (HR, 1.47; 95% CI, 1.27–1.69), CV death (HR, 1.56; 95% CI, 1.18–1.99), and MACE (HR, 1.25; 95% CI, 1.004–1.50) in non-anemic patients. Even after incorporation of N-terminal pro-brain natriuretic peptide, contemporary sensitive cardiac troponin I, and high-sensitivity C-reactive protein into a model with established risk factors, the addition of GDF-15 levels further improved the prediction of all-cause death (P<0.001 for continuous net reclassification improvement [NRI], P<0.001 for integrated discrimination improvement [IDI]), CV death (P=0.026 for NRI, P=0.023 for IDI), and MACE (P=0.025 for NRI, P=0.042 for IDI) in anemic, whereas it did not improved the prediction of all-cause death (P=0.072 for NRI, P=0.079 for IDI), CV death (P=0.289 for NRI, P=0.179 for IDI) or MACE (P=0.397 for NRI, P=0.230 for IDI) in non-anemic patients.
Conclusions
The GDF-15 level significantly improved the prediction of all-cause death, CV death, and MACE in anemic, but not in non-anemic patients with suspected or known CAD. The relationships of GDF-15 with mortality and CV events seem to be remarkable in the presence of anemia.
Funding Acknowledgement
Type of funding source: Public Institution(s). Main funding source(s): The ANOX study is supported by a Grant-in-Aid for Clinical Research from the National Hospital Organization.
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Affiliation(s)
- H Wada
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Suzuki
- National Hospital Organization Saitama Hospital, Wako, Japan
| | - M Matsuda
- National Hospital Organization Kure Medical Center and Chugoku Cancer Center, Kure, Japan
| | - Y Ajiro
- National Hospital Organization Yokohama Medical Center, Yokohama, Japan
| | - T Shinozaki
- National Hospital Organization Sendai Medical Center, Sendai, Japan
| | - S Sakagami
- National Hospital Organization Kanazawa Medical Center, Kanazawa, Japan
| | - K Yonezawa
- National Hospital Organization Hakodate National Hospital, Hakodate, Japan
| | - M Shimizu
- National Hospital Organization Kobe Medical Center, Kobe, Japan
| | - J Funada
- National Hospital Organization Ehime Medical Center, Toon, Japan
| | - T Takenaka
- National Hospital Organization Hokkaido Medical Center, Sapporo, Japan
| | - M Wada
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Iguchi
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Abe
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Akao
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - K Hasegawa
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
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9
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Wada H, Suzuki M, Matsuda M, Ajiro Y, Shinozaki T, Sakagami S, Yonezawa K, Shimizu M, Funada J, Takenaka T, Morita Y, Wada K, Abe M, Akao M, Hasegawa K. Impact of smoking status on the relationships of growth differentiation factor 15 with mortality and cardiovascular events in patients with suspected or known coronary artery disease: the ANOX study. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3018] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Growth differentiation factor 15 (GDF-15) is a stress-responsive cytokine that plays an important role in the regulation of the inflammatory response, growth and cell differentiation. An elevated GDF-15 was found in various conditions including cigarette smoking and stable coronary artery disease (CAD), and it was reported to predict mortality and cardiovascular (CV) events in general population and in patients with established CAD. However, the impact of smoking status on the relationships of GDF-15 with mortality and CV events in patients with suspected or known CAD is unclear.
Methods
Serum GDF-15 levels were measured in 2,418 patients with suspected or known CAD undergoing elective coronary angiography, enrolled in the development of novel biomarkers related to angiogenesis or oxidative stress to predict CV events (ANOX) study, and followed up for 3 years. Patients were divided into 3 groups according to the smoking status: current (n=428), past (n=1,035), and never smokers (n=955). The outcomes were total death, CV death, and major adverse CV events (MACE) defined as a composite of CV death, nonfatal myocardial infarction, and nonfatal stroke.
Results
During the follow-up, 48 current, 120 past, and 86 never smokers died from any cause, 17 current, 47 past, and 24 never smokers died from CV disease, and 35 current, 80 past, and 50 never smokers developed MACE. After adjustment for established risk factors, GDF-15 levels were significantly associated with total death (hazard ratio [HR] for 1-SD increase, 1.30; 95% confidence interval [CI], 1.03–1.65), but not with CV death (HR, 1.09; 95% CI, 0.69–1.62) or MACE (HR, 0.95; 95% CI, 0.64–1.34) in current smokers; GDF-15 levels were significantly associated with total death (HR, 1.73; 95% CI, 1.46–2.05) and CV death (HR, 1.41; 95% CI, 1.09–1.85), but not with MACE (HR, 1.20; 95% CI, 0.96–1.48) in past smokers; GDF-15 levels were significantly associated with total death (HR, 1.62; 95% CI, 1.32–1.95), CV death (HR, 1.76; 95% CI, 1.22–2.46), and MACE (HR, 1.64; 95% CI, 1.27–2.07) in never smokers. Even after incorporation of N-terminal pro-brain natriuretic peptide, contemporary sensitive cardiac troponin I, and high-sensitivity C-reactive protein into a model with established risk factors, the addition of GDF-15 levels further improved the prediction of total death (P<0.001 for continuous net reclassification improvement [NRI], P=0.001 for integrated discrimination improvement [IDI]) and MACE (P<0.001 for NRI, P=0.045 for IDI), but not that of CV death, in never smokers, while it did not significantly improved the prediction of total death, CV death, or MACE either in current or in past smokers.
Conclusions
The GDF-15 level was independently associated with total death and MACE in never, but not in current or past smokers with suspected or known CAD. The relationships of GDF-15 with mortality and CV events seem to be attenuated by the presence of current and past smoking.
Funding Acknowledgement
Type of funding source: Public Institution(s). Main funding source(s): The ANOX study is supported by a Grant-in-Aid for Clinical Research from the National Hospital Organization.
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Affiliation(s)
- H Wada
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Suzuki
- National Hospital Organization Saitama Hospital, Wako, Japan
| | - M Matsuda
- National Hospital Organization Kure Medical Center and Chugoku Cancer Center, Kure, Japan
| | - Y Ajiro
- National Hospital Organization Yokohama Medical Center, Yokohama, Japan
| | - T Shinozaki
- National Hospital Organization Sendai Medical Center, Sendai, Japan
| | - S Sakagami
- National Hospital Organization Kanazawa Medical Center, Kanazawa, Japan
| | - K Yonezawa
- National Hospital Organization Hakodate National Hospital, Hakodate, Japan
| | - M Shimizu
- National Hospital Organization Kobe Medical Center, Kobe, Japan
| | - J Funada
- National Hospital Organization Ehime Medical Center, Toon, Japan
| | - T Takenaka
- National Hospital Organization Hokkaido Medical Center, Sapporo, Japan
| | - Y Morita
- National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan
| | - K Wada
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Abe
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Akao
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - K Hasegawa
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
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10
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Unoki T, Suzuki M, Matsuda M, Ajiro Y, Shinozaki T, Sakagami S, Yonezawa K, Shimizu M, Funada J, Takenaka T, Wada K, Abe M, Akao M, Hasegawa K, Wada H. P3639Vascular endothelial growth factor-C and mortality in patients with suspected but no history of coronary heart disease: a subanalysis of the ANOX study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0496] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
The lymphatic system has been suggested to play an important role in cholesterol metabolism and cardiovascular disease. Recently, we demonstrated that serum levels of vascular endothelial growth factor-C (VEGF-C), a central player of lymphangiogenesis, are inversely and independently associated with the risk of all-cause mortality in patients with suspected or known coronary heart disease (CHD). However, the prognostic value of VEGF-C in patients with suspected but no history of CHD is still unclear.
Methods
Serum VEGF-C levels were measured in 1,717 patients with suspected but no history of CHD undergoing elective coronary angiography, enrolled in the development of novel biomarkers related to angiogenesis or oxidative stress to predict cardiovascular events (ANOX) study, and followed up for 3 years. The primary outcome was all-cause death. The secondary outcomes were cardiovascular death, and major adverse cardiovascular events (MACE) defined as a composite of cardiovascular death, nonfatal myocardial infarction, and nonfatal stroke.
Results
During the follow-up, 161 patients died from any cause, 50 died from cardiovascular disease, and 104 developed MACE. After adjustment for established risk factors, VEGF-C levels were significantly and inversely associated with all-cause death (hazard ratio [HR] for 1-SD increase, 0.69; 95% confidence interval [CI], 0.58–0.83) and cardiovascular death (HR, 0.72; 95% CI, 0.52–0.998), but not with MACE (HR, 0.91; 95% CI, 0.74–1.13). Even after incorporation of N-terminal pro-brain natriuretic peptide, contemporary sensitive cardiac troponin-I, and high-sensitivity C-reactive protein into a model with established risk factors, the addition of VEGF-C levels further improved the prediction of all-cause death (continuous net reclassification improvement [NRI], 0.282; 95% CI, 0.121–0.443; P<0.001; integrated discrimination improvement [IDI], 0.009; 95% CI, 0.003–0.016; P=0.005), but not that of cardiovascular death (NRI, 0.178; 95% CI, r=−0.103–0.458; P=0.214; IDI, 0.004; 95% CI, r=−0.002–0.009; P=0.194) or MACE (NRI, 0.037; 95% CI, r=−0.162–0.235; P=0.717; IDI, 0.000; 95% CI, r=−0.0004–0.0005; P=0.872).
Conclusions
In patients with suspected but no history of CHD undergoing elective coronary angiography, a low VEGF-C value may predict all-cause mortality independent of established risk factors and cardiovascular biomarkers.
Acknowledgement/Funding
The ANOX study is supported by a Grant-in-Aid for Clinical Research from the National Hospital Organization
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Affiliation(s)
- T Unoki
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Suzuki
- National Hospital Organization Saitama National Hospital, Saitama, Japan
| | - M Matsuda
- National Hospital Organization Kure Medical Center, Kure, Japan
| | - Y Ajiro
- National Hospital Organization Yokohama Medical Center, Yokohama, Japan
| | - T Shinozaki
- National Hospital Organization Sendai Medical Center, Sendai, Japan
| | - S Sakagami
- National Hospital Organization Kanazawa Medical Center, Kanazawa, Japan
| | - K Yonezawa
- National Hospital Organization Hakodate National Hospital, Hakodate, Japan
| | - M Shimizu
- National Hospital Organization Kobe Medical Center, Kobe, Japan
| | - J Funada
- National Hospital Organization Ehime Medical Center, Toon, Japan
| | - T Takenaka
- National Hospital Organization Hokkaido Medical Center, Sapporo, Japan
| | - K Wada
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Abe
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Akao
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - K Hasegawa
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - H Wada
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
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11
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Unoki T, Suzuki M, Matsuda M, Ajiro Y, Shinozaki T, Sakagami S, Yonezawa K, Shimizu M, Funada J, Takenaka T, Morita Y, Abe M, Akao M, Hasegawa K, Wada H. 5195Growth differentiation factor-15 and mortality in suspected or known coronary heart disease patients with diabetes: a subanalysis of the ANOX study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0054] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Diabetes is a risk factor for coronary heart disease (CHD), but further risk stratification in patients with diabetes is necessary to improve the prediction and prevention of cardiovascular events and deaths. Growth differentiation factor-15 (GDF-15) is a stress-responsive cytokine, which plays an important role in the regulation of the inflammatory response, growth and cell differentiation. Elevated GDF-15 was found in various diseases including diabetes and stable CHD, and was reported to predict mortality and cardiovascular events in general or established CHD population. However, the prognostic value of GDF-15 in suspected or known CHD patients with diabetes is unknown.
Methods
Serum GDF-15 levels were measured in 1,087 suspected or known CHD patients with diabetes undergoing elective coronary angiography, enrolled in the development of novel biomarkers related to angiogenesis or oxidative stress to predict cardiovascular events (ANOX) study, and followed up for 3 years. The primary outcome was all-cause death. The secondary outcomes were cardiovascular death, and major adverse cardiovascular events (MACE) defined as a composite of cardiovascular death, nonfatal myocardial infarction, and nonfatal stroke.
Results
During the follow-up, 147 patients died from any cause, 47 died from cardiovascular disease, and 94 developed MACE. After adjustment for established risk factors, GDF-15 levels were significantly associated with all-cause death (hazard ratio [HR] for 1-SD increase, 1.66; 95% confidence interval [CI], 1.48–1.86), cardiovascular death (HR, 1.63; 95% CI, 1.34–1.99), and MACE (HR, 1.41; 95% CI, 1.20–1.65). Even after incorporation of N-terminal pro-brain natriuretic peptide, contemporary sensitive cardiac troponin-I, and high-sensitivity C-reactive protein into a model with established risk factors, the addition of GDF-15 levels further improved the prediction of all-cause death (continuous net reclassification improvement [NRI], 0.344; 95% CI, 0.172–0.517; P<0.001; integrated discrimination improvement [IDI], 0.049; 95% CI, 0.026–0.072; P<0.001), but not that of cardiovascular death (NRI, −0.013; 95% CI, −0.300–0.274; P=0.931; IDI, 0.023; 95% CI, 0.003–0.043; P=0.026) or MACE (NRI, 0.059; 95% CI, −0.151–0.268; P=0.583; IDI, 0.005; 95% CI, −0.004–0.015; P=0.244).
Conclusions
In suspected or known CHD patients with diabetes undergoing elective coronary angiography, elevated GDF-15 levels may predict all-cause mortality independent of established risk factors and cardiovascular biomarkers.
Acknowledgement/Funding
The ANOX study is supported by a Grant-in-Aid for Clinical Research from the National Hospital Organization.
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Affiliation(s)
- T Unoki
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Suzuki
- National Hospital Organization Saitama National Hospital, Saitama, Japan
| | - M Matsuda
- National Hospital Organization Kure Medical Center, Kure, Japan
| | - Y Ajiro
- National Hospital Organization Yokohama Medical Center, Yokohama, Japan
| | - T Shinozaki
- National Hospital Organization Sendai Medical Center, Sendai, Japan
| | - S Sakagami
- National Hospital Organization Kanazawa Medical Center, Kanazawa, Japan
| | - K Yonezawa
- National Hospital Organization Hakodate National Hospital, Hakodate, Japan
| | - M Shimizu
- National Hospital Organization Kobe Medical Center, Kobe, Japan
| | - J Funada
- National Hospital Organization Ehime Medical Center, Toon, Japan
| | - T Takenaka
- National Hospital Organization Hokkaido Medical Center, Sapporo, Japan
| | - Y Morita
- National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan
| | - M Abe
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Akao
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - K Hasegawa
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - H Wada
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
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12
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Wada H, Suzuki M, Matsuda M, Ajiro Y, Shinozaki T, Sakagami S, Yonezawa K, Shimizu M, Funada J, Takenaka T, Morita Y, Wada M, Abe M, Akao M, Hasegawa K. P5529Vascular endothelial growth factor-D and mortality in suspected or known coronary heart disease patients with diabetes: a subanalysis of the ANOX study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0476] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Diabetes is a risk factor for coronary heart disease (CHD), but further risk stratification in patients with diabetes is necessary to improve the prediction and prevention of cardiovascular events and deaths. Vascular endothelial growth factor-D (VEGF-D) is a secreted glycoprotein that can act as lymphangiogenic and angiogenic growth factors through binding to its specific receptors, VEGFR-3 (Flt-4) and VEGFR-2 (KDR/Flk-1). VEGF-D signaling via VEGFR-3 plays an important role in lipoprotein metabolisms which may contribute to CHD. VEGF-D signaling has been used as a therapeutic target of human diseases such as lymphangioleiomyomatosis and refractory angina. Furthermore, in clinical settings, the VEGF-D level is already established as a diagnostic biomarker for lymphangioleiomyomatosis. However, the prognostic value of VEGF-D in suspected or known CHD patients with diabetes is unknown.
Methods
Serum VEGF-D levels were measured in 1,087 suspected or known CHD patients with diabetes undergoing elective coronary angiography, enrolled in the development of novel biomarkers related to angiogenesis or oxidative stress to predict cardiovascular events (ANOX) study, and followed up for 3 years. The primary outcome was all-cause death. The secondary outcomes were cardiovascular death, and major adverse cardiovascular events (MACE) defined as a composite of cardiovascular death, nonfatal myocardial infarction, and nonfatal stroke.
Results
During the follow-up, 147 patients died from any cause, 47 died from cardiovascular disease, and 94 developed MACE. After adjustment for established risk factors, VEGF-D levels were significantly associated with all-cause death (hazard ratio [HR] for 1-SD increase, 1.34; 95% confidence interval [CI], 1.21–1.47), cardiovascular death (HR, 1.40; 95% CI, 1.18–1.62), and MACE (HR, 1.22; 95% CI, 1.07–1.40). Even after incorporation of N-terminal pro-brain natriuretic peptide, contemporary sensitive cardiac troponin-I, and high-sensitivity C-reactive protein into a model with established risk factors, the addition of VEGF-D levels further improved the prediction of all-cause death (continuous net reclassification improvement [NRI], 0.258; 95% CI, 0.088–0.429; P=0.003; integrated discrimination improvement [IDI], 0.013; 95% CI, 0.002–0.024; P=0.022), but not that of cardiovascular death (NRI, 0.046; 95% CI, −0.245–0.336; P=0.759; IDI, 0.013; 95% CI, −0.005–0.031; P=0.146) or MACE (NRI, 0.064; 95% CI, −0.146–0.274; P=0.552; IDI, 0.001; 95% CI, −0.002–0.004; P=0.557).
Conclusions
In suspected or known CHD patients with diabetes undergoing elective coronary angiography, elevated VEGF-D levels may predict all-cause mortality independent of established risk factors and cardiovascular biomarkers.
Acknowledgement/Funding
The ANOX study is supported by a Grant-in-Aid for Clinical Research from the National Hospital Organization
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Affiliation(s)
- H Wada
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Suzuki
- National Hospital Organization Saitama National Hospital, Saitama, Japan
| | - M Matsuda
- National Hospital Organization Kure Medical Center, Kure, Japan
| | - Y Ajiro
- National Hospital Organization Yokohama Medical Center, Yokohama, Japan
| | - T Shinozaki
- National Hospital Organization Sendai Medical Center, Sendai, Japan
| | - S Sakagami
- National Hospital Organization Kanazawa Medical Center, Kanazawa, Japan
| | - K Yonezawa
- National Hospital Organization Hakodate National Hospital, Hakodate, Japan
| | - M Shimizu
- National Hospital Organization Kobe Medical Center, Kobe, Japan
| | - J Funada
- National Hospital Organization Ehime Medical Center, Toon, Japan
| | - T Takenaka
- National Hospital Organization Hokkaido Medical Center, Sapporo, Japan
| | - Y Morita
- National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan
| | - M Wada
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Abe
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Akao
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - K Hasegawa
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
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13
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Wada H, Suzuki M, Matsuda M, Ajiro Y, Shinozaki T, Sakagami S, Yonezawa K, Shimizu M, Funada J, Takenaka T, Morita Y, Wada M, Abe M, Akao M, Hasegawa K. P5526Vascular endothelial growth factor-D and mortality in suspected or known coronary heart disease patients with chronic kidney disease: a subanalysis of the ANOX study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0474] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Chronic kidney disease (CKD) is an independent risk factor for the development and progression of coronary heart disease (CHD). Vascular endothelial growth factor-D (VEGF-D) is a secreted glycoprotein that can act as lymphangiogenic and angiogenic growth factors through binding to its specific receptors, VEGFR-3 (Flt-4) and VEGFR-2 (KDR/Flk-1). VEGF-D signaling via VEGFR-3 plays an important role in lipoprotein metabolisms which may contribute to CHD. VEGF-D signaling has been used as a therapeutic target of human diseases such as lymphangioleiomyomatosis and refractory angina. Furthermore, in clinical settings, the VEGF-D level is already established as a diagnostic biomarker for lymphangioleiomyomatosis. However, the prognostic value of VEGF-D in suspected or known CHD patients with CKD is unknown.
Methods
Serum VEGF-D levels were measured in 999 suspected or known CHD patients with CKD undergoing elective coronary angiography, enrolled in the development of novel biomarkers related to angiogenesis or oxidative stress to predict cardiovascular events (ANOX) study, and followed up for 3 years. The primary outcome was all-cause death. The secondary outcomes were cardiovascular death, and major adverse cardiovascular events (MACE) defined as a composite of cardiovascular death, nonfatal myocardial infarction, and nonfatal stroke.
Results
During the follow-up, 154 patients died from any cause, 61 died from cardiovascular disease, and 96 developed MACE. After adjustment for established risk factors, VEGF-D levels were significantly associated with all-cause death (hazard ratio [HR] for 1-SD increase, 1.41; 95% confidence interval [CI], 1.27–1.56), cardiovascular death (HR, 1.48; 95% CI, 1.28–1.71), and MACE (HR, 1.34; 95% CI, 1.18–1.53). Even after incorporation of N-terminal pro-brain natriuretic peptide, contemporary sensitive cardiac troponin-I, and high-sensitivity C-reactive protein into a model with established risk factors, the addition of VEGF-D levels further improved the prediction of all-cause death (continuous net reclassification improvement [NRI], 0.272; 95% CI, 0.100–0.445; P=0.002; integrated discrimination improvement [IDI], 0.015; 95% CI, 0.003–0.027; P=0.013), but not that of cardiovascular death (NRI, 0.230; 95% CI, −0.029 to 0.488; P=0.082; IDI, 0.012; 95% CI, −0.007 to 0.031; P=0.207) or MACE (NRI, 0.102; 95% CI, −0.106 to 0.310; P=0.337; IDI, 0.005; 95% CI, −0.005 to 0.015; P=0.337).
Conclusions
In suspected or known CHD patients with CKD undergoing elective coronary angiography, elevated VEGF-D levels may predict all-cause mortality independent of established risk factors and cardiovascular biomarkers.
Acknowledgement/Funding
The ANOX study is supported by a Grant-in-Aid for Clinical Research from the National Hospital Organization
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Affiliation(s)
- H Wada
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Suzuki
- National Hospital Organization Saitama National Hospital, Saitama, Japan
| | - M Matsuda
- National Hospital Organization Kure Medical Center, Kure, Japan
| | - Y Ajiro
- National Hospital Organization Yokohama Medical Center, Yokohama, Japan
| | - T Shinozaki
- National Hospital Organization Sendai Medical Center, Sendai, Japan
| | - S Sakagami
- National Hospital Organization Kanazawa Medical Center, Kanazawa, Japan
| | - K Yonezawa
- National Hospital Organization Hakodate National Hospital, Hakodate, Japan
| | - M Shimizu
- National Hospital Organization Kobe Medical Center, Kobe, Japan
| | - J Funada
- National Hospital Organization Ehime Medical Center, Toon, Japan
| | - T Takenaka
- National Hospital Organization Hokkaido Medical Center, Sapporo, Japan
| | - Y Morita
- National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan
| | - M Wada
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Abe
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Akao
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - K Hasegawa
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
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14
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Iguchi M, Suzuki M, Matsuda M, Ajiro Y, Shinozaki T, Sakagami S, Yonezawa K, Shimizu M, Funada J, Takenaka T, Morita Y, Abe M, Akao M, Hasegawa K, Wada H. P3765Low vascular endothelial growth factor-C was a predictor for cardiovascular events in patients with atrial fibrillation and suspected or known coronary artery disease: a subanalysis of the ANOX study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0616] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Lymphatic system has been considered to play an important role in cardiovascular disease. We recently reported that vascular endothelial growth factor-C (VEGF-C), a central player in lymphangiogenesis, predicted all-cause mortality in patients with suspected or known coronary artery disease (CAD). However, relationship between VEGF-C and atrial fibrillation (AF) remains unclear.
Methods
The ANOX study is a multicenter, prospective cohort study of 2,418 patients with suspected CAD, to determine the predictive value of possible novel biomarkers related to angiogenesis or oxidative stress for major adverse cardiovascular events (MACE) among patients undergoing elective angiography. Blood samples were collected from the arterial catheter sheath at the beginning of coronary angiography. Serum levels of VEGF-C, as well as N-terminal pro-brain natriuretic peptide (NT-proBNP), high-sensitivity troponin-I (cTnI), and high-sensitivity C-reactive protein (hsCRP), were measured. The outcome was a MACE defined as a composite of cardiovascular death, nonfatal myocardial infarction, and nonfatal stroke.
Results
Of a total of 2,418 patients, 261 patients had AF at baseline. AF group were older, and had more chronic kidney disease, history of heart failure, and history of stroke, but less diabetes, dyslipidemia, and CAD. The median level of NT-proBNP, cTnI, and hsCRP were higher in AF group [AF vs non-AF: NT-proBNP, 1048 pg/ml vs 162 pg/ml (p<0.0001); cTnI, 0.0003 ng/ml, vs 0.0 ng/ml (p<0.0001); hsCRP, 1.43 ug/ml vs 0.88 ug/ml (p=0.0005)], whereas median level of VEGF-C was lower in AF group [3107 pg/ml vs 3590 pg/ml (p<0.0001)]. AF was associated with lower VEGF-C and higher hsCRP after adjustment for potential confounders. During the 3-year follow-up, 29 (11.1%) patients in AF group and 136 (6.3%) patients in non-AF group developed MACE (p=0.007). Incidence of stroke was higher in AF group (17 (6.5%) vs 52 (2.4%); p<0.0009), despite that the incidence of cardiovascular death and myocardial infarction were similar between the groups. We divided the entire cohort into two groups based on the lowest quartile of VEGF-C or highest quartile of other biomarkers, lowest quartile of VEGF-C (log rank p=0.0004), as well as highest quartile of cTnI (log rank p=0.0009), were significantly associated with MACE in AF group. After adjustment for established risk factors and these biomarkers, both lowest quartile of VEGF-C (HR, 2.73; 95% CI, 1.27–6.06) and highest quartile of cTnI (HR, 2.54; 95% CI, 1.08–6.09) were significantly associated with MACE in AF group.
Conclusions
AF was associated with lower level of VEGF-C, and low VEGF-C as well as high cTnI might serve as an independent predictor of MACE in patients with AF and suspected or known CAD.
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Affiliation(s)
- M Iguchi
- National Hospital Organization Kyoto Medical Center, Department of Cardiology, Kyoto, Japan
| | - M Suzuki
- National Hospital Organization Saitama National Hospital, Saitama, Japan
| | - M Matsuda
- National Hospital Organization Kure Medical Center, Kure, Japan
| | - Y Ajiro
- National Hospital Organization Yokohama Medical Center, Yokohama, Japan
| | - T Shinozaki
- National Hospital Organization Sendai Medical Center, Sendai, Japan
| | - S Sakagami
- National Hospital Organization Kanazawa Medical Center, Kanazawa, Japan
| | - K Yonezawa
- National Hospital Organization Hakodate National Hospital, Hakodate, Japan
| | - M Shimizu
- National Hospital Organization Kobe Medical Center, Kobe, Japan
| | - J Funada
- National Hospital Organization Ehime Medical Center, Toon, Japan
| | - T Takenaka
- National Hospital Organization Hokkaido Medical Center, Sapporo, Japan
| | - Y Morita
- National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan
| | - M Abe
- National Hospital Organization Kyoto Medical Center, Department of Cardiology, Kyoto, Japan
| | - M Akao
- National Hospital Organization Kyoto Medical Center, Department of Cardiology, Kyoto, Japan
| | - K Hasegawa
- National Hospital Organization Kyoto Medical Center, Division of Translational Research, Kyoto, Japan
| | - H Wada
- National Hospital Organization Kyoto Medical Center, Division of Translational Research, Kyoto, Japan
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15
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Takagi D, Suzuki M, Matsuda M, Ajiro Y, Shinozaki T, Sakagami S, Yonezawa K, Shimizu M, Funada J, Takenaka T, Wada K, Abe M, Akao M, Hasegawa K, Wada H. P3635Vascular endothelial growth factor-D and mortality in patients with suspected but no history of coronary heart disease: a subanalysis of the ANOX study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0493] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Vascular endothelial growth factor-D (VEGF-D) is a secreted glycoprotein that can act as lymphangiogenic and angiogenic growth factors through binding to its specific receptors, VEGFR-3 (Flt-4) and VEGFR-2 (KDR/Flk-1). VEGF-D signaling via VEGFR-3 plays an important role in lipoprotein metabolisms which may contribute to coronary heart disease (CHD). VEGF-D signaling has been used as a therapeutic target of human diseases such as lymphangioleiomyomatosis and refractory angina. In clinical settings, the VEGF-D level is already established as a diagnostic biomarker for lymphangioleiomyomatosis. However, the prognostic value of VEGF-D in patients with suspected but no history of CHD is unknown.
Methods
Serum VEGF-D levels were measured in 1,717 patients with suspected but no history of CHD undergoing elective coronary angiography, enrolled in the development of novel biomarkers related to angiogenesis or oxidative stress to predict cardiovascular events (ANOX) study, and followed up for 3 years. The primary outcome was all-cause death. The secondary outcomes were cardiovascular death, and major adverse cardiovascular events (MACE) defined as a composite of cardiovascular death, nonfatal myocardial infarction, and nonfatal stroke.
Results
During the follow-up, 161 patients died from any cause, 50 died from cardiovascular disease, and 104 developed MACE. After adjustment for established risk factors, VEGF-D levels were significantly associated with all-cause death (hazard ratio [HR] for 1-SD increase, 1.29; 95% confidence interval [CI], 1.17–1.42), cardiovascular death (HR, 1.37; 95% CI, 1.20–1.56), and MACE (HR, 1.22; 95% CI, 1.08–1.37). Even after incorporation of N-terminal pro-brain natriuretic peptide, contemporary sensitive cardiac troponin-I, and high-sensitivity C-reactive protein into a model with established risk factors, the addition of VEGF-D levels further improved the prediction of all-cause death (continuous net reclassification improvement [NRI], 0.165; 95% CI, 0.004–0.325; P=0.044; integrated discrimination improvement [IDI], 0.012; 95% CI, 0.002–0.023; P=0.013), but not that of cardiovascular death (NRI, 0.078; 95% CI, r=−0.203–0.359; P=0.586; IDI, 0.014; 95% CI, r=−0.009–0.037; P=0.235) or MACE (NRI, r=−0.011; 95% CI, r=−0.207–0.184; P=0.337; IDI, 0.003; 95% CI, r=−0.003–0.009; P=0.354).
Conclusions
In patients with suspected but no history of CHD undergoing elective coronary angiography, elevated VEGF-D levels may predict all-cause mortality independent of established risk factors and cardiovascular biomarkers.
Acknowledgement/Funding
The ANOX study is supported by a Grant-in-Aid for Clinical Research from the National Hospital Organization.
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Affiliation(s)
- D Takagi
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Suzuki
- National Hospital Organization Saitama National Hospital, Saitama, Japan
| | - M Matsuda
- National Hospital Organization Kure Medical Center, Kure, Japan
| | - Y Ajiro
- National Hospital Organization Yokohama Medical Center, Yokohama, Japan
| | - T Shinozaki
- National Hospital Organization Sendai Medical Center, Sendai, Japan
| | - S Sakagami
- National Hospital Organization Kanazawa Medical Center, Kanazawa, Japan
| | - K Yonezawa
- National Hospital Organization Hakodate National Hospital, Hakodate, Japan
| | - M Shimizu
- National Hospital Organization Kobe Medical Center, Kobe, Japan
| | - J Funada
- National Hospital Organization Ehime Medical Center, Toon, Japan
| | - T Takenaka
- National Hospital Organization Hokkaido Medical Center, Sapporo, Japan
| | - K Wada
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Abe
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Akao
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - K Hasegawa
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - H Wada
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
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16
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Kawakami Y, Suzuki K, Miyake T, Hayashi Y, Akahonai M, Fukuda K, Yonezawa K, Morita R, Nakase H. Hepatobiliary and Pancreatic: Hepatic alveolar echinococcosis mimics cholangiocarcinoma: Role of EUS-FNA. J Gastroenterol Hepatol 2018; 33:1941. [PMID: 29896875 DOI: 10.1111/jgh.14279] [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] [Received: 03/19/2018] [Accepted: 04/27/2018] [Indexed: 12/09/2022]
Affiliation(s)
- Y Kawakami
- Department of Gastroenterology, Kushiro City General Hospital, Kushiro, Japan
| | - K Suzuki
- Department of Gastroenterology, Kushiro City General Hospital, Kushiro, Japan
| | - T Miyake
- Department of Gastroenterology, Kushiro City General Hospital, Kushiro, Japan
| | - Y Hayashi
- Department of Gastroenterology, Kushiro City General Hospital, Kushiro, Japan
| | - M Akahonai
- Department of Gastroenterology, Kushiro City General Hospital, Kushiro, Japan
| | - K Fukuda
- Department of Gastroenterology, Kushiro City General Hospital, Kushiro, Japan
| | - K Yonezawa
- Department of Gastroenterology, Kushiro City General Hospital, Kushiro, Japan
| | - R Morita
- Department of Pathology, Kushiro City General Hospital, Kushiro, Japan
| | - H Nakase
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Sapporo, Japan
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17
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Wada H, Suzuki M, Matsuda M, Ajiro Y, Shinozaki T, Sakagami S, Yonezawa K, Shimizu M, Funada J, Takenaka T, Morita Y, Wada K, Abe M, Akao M, Hasegawa K. P6253Vascular endothelial growth factor-C and cardiovascular mortality in patients with suspected and a history of coronary artery disease: from the ANOX study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6253] [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: 11/14/2022] Open
Affiliation(s)
- H Wada
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Suzuki
- National Hospital Organization Saitama National Hospital, Saitama, Japan
| | - M Matsuda
- National Hospital Organization Kure Medical Center, Kure, Japan
| | - Y Ajiro
- National Hospital Organization Yokohama Medical Center, Yokohama, Japan
| | - T Shinozaki
- National Hospital Organization Sendai Medical Center, Sendai, Japan
| | - S Sakagami
- National Hospital Organization Kanazawa Medical Center, Kanazawa, Japan
| | - K Yonezawa
- National Hospital Organization Hakodate National Hospital, Hakodate, Japan
| | - M Shimizu
- National Hospital Organization Kobe Medical Center, Kobe, Japan
| | - J Funada
- National Hospital Organization Ehime Medical Center, Toon, Japan
| | - T Takenaka
- National Hospital Organization Hokkaido Medical Center, Sapporo, Japan
| | - Y Morita
- National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan
| | - K Wada
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Abe
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Akao
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - K Hasegawa
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
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18
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Takagi D, Suzuki M, Matsuda M, Ajiro Y, Shinozaki T, Sakagami S, Yonezawa K, Shimizu M, Funada J, Takenaka T, Morita Y, Abe M, Akao M, Hasegawa K, Wada H. P5336Vascular endothelial growth factor-C and cardiovascular and all-cause mortality in patients with chronic kidney disease and suspected coronary artery disease: from the ANOX study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5336] [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: 11/12/2022] Open
Affiliation(s)
- D Takagi
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Suzuki
- National Hospital Organization Saitama National Hospital, Saitama, Japan
| | - M Matsuda
- National Hospital Organization Kure Medical Center, Kure, Japan
| | - Y Ajiro
- National Hospital Organization Yokohama Medical Center, Yokohama, Japan
| | - T Shinozaki
- National Hospital Organization Sendai Medical Center, Sendai, Japan
| | - S Sakagami
- National Hospital Organization Kanazawa Medical Center, Kanazawa, Japan
| | - K Yonezawa
- National Hospital Organization Hakodate National Hospital, Hakodate, Japan
| | - M Shimizu
- National Hospital Organization Kobe Medical Center, Kobe, Japan
| | - J Funada
- National Hospital Organization Ehime Medical Center, Toon, Japan
| | - T Takenaka
- National Hospital Organization Hokkaido Medical Center, Sapporo, Japan
| | - Y Morita
- National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan
| | - M Abe
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Akao
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - K Hasegawa
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - H Wada
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
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19
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Unoki T, Suzuki M, Matsuda M, Ajiro Y, Shinozaki T, Sakagami S, Yonezawa K, Shimizu M, Funada J, Takenaka T, Morita Y, Abe M, Akao M, Hasegawa K, Wada H. P2520Vascular endothelial growth factor-C and mortality in patients with diabetes and suspected coronary artery disease: from the ANOX study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2520] [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: 11/13/2022] Open
Affiliation(s)
- T Unoki
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Suzuki
- National Hospital Organization Saitama National Hospital, Saitama, Japan
| | - M Matsuda
- National Hospital Organization Kure Medical Center, Kure, Japan
| | - Y Ajiro
- National Hospital Organization Yokohama Medical Center, Yokohama, Japan
| | - T Shinozaki
- National Hospital Organization Sendai Medical Center, Sendai, Japan
| | - S Sakagami
- National Hospital Organization Kanazawa Medical Center, Kanazawa, Japan
| | - K Yonezawa
- National Hospital Organization Hakodate National Hospital, Hakodate, Japan
| | - M Shimizu
- National Hospital Organization Kobe Medical Center, Kobe, Japan
| | - J Funada
- National Hospital Organization Ehime Medical Center, Toon, Japan
| | - T Takenaka
- National Hospital Organization Hokkaido Medical Center, Sapporo, Japan
| | - Y Morita
- National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan
| | - M Abe
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M Akao
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - K Hasegawa
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - H Wada
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
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20
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Bussolotti F, Yang J, Yamaguchi T, Yonezawa K, Sato K, Matsunami M, Tanaka K, Nakayama Y, Ishii H, Ueno N, Kera S. Hole-phonon coupling effect on the band dispersion of organic molecular semiconductors. Nat Commun 2017; 8:173. [PMID: 28765525 PMCID: PMC5539254 DOI: 10.1038/s41467-017-00241-z] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 06/13/2017] [Indexed: 11/09/2022] Open
Abstract
The dynamic interaction between the traveling charges and the molecular vibrations is critical for the charge transport in organic semiconductors. However, a direct evidence of the expected impact of the charge-phonon coupling on the band dispersion of organic semiconductors is yet to be provided. Here, we report on the electronic properties of rubrene single crystal as investigated by angle resolved ultraviolet photoelectron spectroscopy. A gap opening and kink-like features in the rubrene electronic band dispersion are observed. In particular, the latter results in a large enhancement of the hole effective mass (> 1.4), well above the limit of the theoretical estimations. The results are consistent with the expected modifications of the band structures in organic semiconductors as introduced by hole-phonon coupling effects and represent an important experimental step toward the understanding of the charge localization phenomena in organic materials.The charge transport properties in organic semiconductors are affected by the impact of molecular vibrations, yet it has been challenging to quantify them to date. Here, Bussolotti et al. provide direct experimental evidence on the band dispersion modified by molecular vibrations in a rubrene single crystal.
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Affiliation(s)
- F Bussolotti
- Institute for Molecular Science, Myodaiji, Okazaki, 444-8585, Japan. .,Institute of Materials Research and Engineering (IMRE), 2 Fusionopolis Way, Innovis, Singapore, #08-03, Singapore.
| | - J Yang
- Graduate School of Advanced Integration Science, Chiba University, Chiba, 263-8522, Japan.,College of Physical Science and Technology, Yangzhou University, Jiangsu, 225009, People's Republic of China
| | - T Yamaguchi
- Institute for Molecular Science, Myodaiji, Okazaki, 444-8585, Japan.,SOKENDAI (The Graduate University for Advanced Studies), Hayama, Kanagawa, 240-0193, Japan
| | - K Yonezawa
- Institute for Molecular Science, Myodaiji, Okazaki, 444-8585, Japan
| | - K Sato
- Graduate School of Advanced Integration Science, Chiba University, Chiba, 263-8522, Japan
| | - M Matsunami
- Institute for Molecular Science, Myodaiji, Okazaki, 444-8585, Japan.,Toyota Technological Institute, 2-12-1 Hisakata, Tempaku-ku, Nagoya, 468-8511, Japan
| | - K Tanaka
- Institute for Molecular Science, Myodaiji, Okazaki, 444-8585, Japan.,SOKENDAI (The Graduate University for Advanced Studies), Hayama, Kanagawa, 240-0193, Japan
| | - Y Nakayama
- Graduate School of Advanced Integration Science, Chiba University, Chiba, 263-8522, Japan.,Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda-shi, Chiba-ken, 278-8510, Japan
| | - H Ishii
- Graduate School of Advanced Integration Science, Chiba University, Chiba, 263-8522, Japan
| | - N Ueno
- Graduate School of Advanced Integration Science, Chiba University, Chiba, 263-8522, Japan
| | - S Kera
- Institute for Molecular Science, Myodaiji, Okazaki, 444-8585, Japan. .,Graduate School of Advanced Integration Science, Chiba University, Chiba, 263-8522, Japan. .,SOKENDAI (The Graduate University for Advanced Studies), Hayama, Kanagawa, 240-0193, Japan.
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21
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Wada H, Suzuki M, Matsuda M, Ajiro Y, Shinozaki T, Sakagami S, Yonezawa K, Shimizu M, Funada J, Takenaka T, Morita Y, Murakami M, Abe M, Akao M, Hasegawa K. P659Impact of chronic kidney disease on biomarkers predicting severity of coronary artery disease in patients with suspected coronary heart disease: baseline data from the ANOX study. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.p659] [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: 11/12/2022] Open
Affiliation(s)
- H. Wada
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M. Suzuki
- National Hospital Organization Saitama National Hospital, Saitama, Japan
| | - M. Matsuda
- National Hospital Organization Kure Medical Center, Kure, Japan
| | - Y. Ajiro
- National Hospital Organization Yokohama Medical Center, Yokohama, Japan
| | - T. Shinozaki
- National Hospital Organization Sendai Medical Center, Sendai, Japan
| | - S. Sakagami
- National Hospital Organization Kanazawa Medical Center, Kanazawa, Japan
| | - K. Yonezawa
- National Hospital Organization Hakodate National Hospital, Hakodate, Japan
| | - M. Shimizu
- National Hospital Organization Kobe Medical Center, Kobe, Japan
| | - J. Funada
- National Hospital Organization Ehime Medical Center, Toon, Japan
| | - T. Takenaka
- National Hospital Organization Hokkaido Medical Center, Sapporo, Japan
| | - Y. Morita
- National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan
| | - M. Murakami
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M. Abe
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M. Akao
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - K. Hasegawa
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
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22
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Wada H, Suzuki M, Matsuda M, Ajiro Y, Shinozaki T, Sakagami S, Yonezawa K, Shimizu M, Funada J, Takenaka T, Morita Y, Kotani K, Abe M, Akao M, Hasegawa K. P855Serum-amyloid-A/LDL complex and NT-proBNP independently correlated with severe angiographic coronary artery disease in patients with suspected, but no history of coronary heart disease: the ANOX study. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.p855] [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: 11/12/2022] Open
Affiliation(s)
- H. Wada
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M. Suzuki
- National Hospital Organization Saitama National Hospital, Saitama, Japan
| | - M. Matsuda
- National Hospital Organization Kure Medical Center, Kure, Japan
| | - Y. Ajiro
- National Hospital Organization Yokohama Medical Center, Yokohama, Japan
| | - T. Shinozaki
- National Hospital Organization Sendai Medical Center, Sendai, Japan
| | - S. Sakagami
- National Hospital Organization Kanazawa Medical Center, Kanazawa, Japan
| | - K. Yonezawa
- National Hospital Organization Hakodate National Hospital, Hakodate, Japan
| | - M. Shimizu
- National Hospital Organization Kobe Medical Center, Kobe, Japan
| | - J. Funada
- National Hospital Organization Ehime Medical Center, Toon, Japan
| | - T. Takenaka
- National Hospital Organization Hokkaido Medical Center, Sapporo, Japan
| | - Y. Morita
- National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan
| | - K. Kotani
- Jichi Medical University, Shimotsuke, Japan
| | - M. Abe
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M. Akao
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - K. Hasegawa
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
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23
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Iguchi M, Suzuki M, Matsuda M, Ajiro Y, Shinozaki T, Sakagami S, Yonezawa K, Shimizu M, Funada J, Takenaka T, Morita Y, Abe M, Akao M, Hasegawa K, Wada H. P6476Serum-amyloid-A/LDL complex independently correlated with angiographic severity of coronary artery disease in patients with cancer: baseline data from the ANOX study. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p6476] [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: 11/12/2022] Open
Affiliation(s)
- M. Iguchi
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M. Suzuki
- National Hospital Organization Saitama National Hospital, Saitama, Japan
| | - M. Matsuda
- National Hospital Organization Kure Medical Center, Kure, Japan
| | - Y. Ajiro
- National Hospital Organization Yokohama Medical Center, Yokohama, Japan
| | - T. Shinozaki
- National Hospital Organization Sendai Medical Center, Sendai, Japan
| | - S. Sakagami
- National Hospital Organization Kanazawa Medical Center, Kanazawa, Japan
| | - K. Yonezawa
- National Hospital Organization Hakodate National Hospital, Hakodate, Japan
| | - M. Shimizu
- National Hospital Organization Kobe Medical Center, Kobe, Japan
| | - J. Funada
- National Hospital Organization Ehime Medical Center, Toon, Japan
| | - T. Takenaka
- National Hospital Organization Hokkaido Medical Center, Sapporo, Japan
| | - Y. Morita
- National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan
| | - M. Abe
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - M. Akao
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - K. Hasegawa
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - H. Wada
- National Hospital Organization Kyoto Medical Center, Kyoto, Japan
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24
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Hayakawa T, Fujimoto N, Zhang J, Shinya T, Ohuchi E, Mouri N, Yonezawa K, Sakai T, Yoshida S, Okada Y. A one-step sandwich enzyme immunoassay for tissue inhibitor of metalloproteinases-2. Contrib Nephrol 2015; 107:116-23. [PMID: 8004957 DOI: 10.1159/000422969] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- T Hayakawa
- Department of Biochemistry, School of Dentistry, Aichi-Gakuin University, Nagoya, Japan
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25
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Fujii K, Suzuki K, Goto A, Nakahata K, Matsunaga Y, Wakasugi H, Itoh M, Yonezawa K, Abe T, Shinomura Y. Pancreatic-colonic fistula successfully treated with endoscopic transpapillary nasopancreatic drainage. Endoscopy 2011; 43 Suppl 2 UCTN:E154-5. [PMID: 21563059 DOI: 10.1055/s-0030-1256259] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- K Fujii
- Department of Gastroenterology, Kushiro City General Hospital, Kushiro, Japan.
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26
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Stoffels B, Yonezawa K, Yamamoto Y, Schäfer N, Overhaus M, Klinge U, Kalff JC, Minor T, Tolba RH. Meloxicam, a COX-2 inhibitor, ameliorates ischemia/reperfusion injury in non-heart-beating donor livers. ACTA ACUST UNITED AC 2011; 47:109-17. [PMID: 21757922 DOI: 10.1159/000329414] [Citation(s) in RCA: 10] [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] [Received: 03/31/2011] [Accepted: 05/17/2011] [Indexed: 01/14/2023]
Abstract
BACKGROUND/AIMS Chronic organ donor shortage has led to the consideration to expand the donor pool with livers from non-heart-beating donors (NHBD), although a higher risk of graft dys- or nonfunction is associated with these livers. We examined the effects of selective cyclooxygenase-2 (COX-2) inhibition on hepatic warm ischemia (WI) reperfusion (I/R) injury of NHBD. METHODS Male Wistar rats were used as donors and meloxicam (5 mg/kg body weight) was administered into the preservation solution. Livers were excised after 60 min of WI in situ, flushed and preserved for 24 h at 4°C. Reperfusion was carried out in vitro at a constant flow for 45 min. During reperfusion (5, 15, 30 and 45 min), enzyme release of alanine aminotransferase and glutamate lactate dehydrogenase were measured as well as portal venous pressure, bile production and oxygen consumption. The production of malondialdehyde was quantified and TUNEL staining was performed. Quantitative PCR analyzed COX-2 mRNA. COX-2 immunohistochemistry and TxB(2) detection completed the measurements. RESULTS Meloxicam treatment led to better functional recovery concerning liver enzyme release, vascular resistance and metabolic activity over time in all animals. Oxidative stress and apoptosis were considerably reduced. CONCLUSION Cold storage using meloxicam resulted in significantly better integrity and function of livers retrieved from NHBD. Selective COX-2 inhibition is a new therapeutic approach achieving improved preservation of grafts from NHBD.
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Affiliation(s)
- B Stoffels
- Department of Gastroenterological Surgery, Graduate School of Medicine, University of Kyoto, Kyoto, Japan
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27
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Matunaga Y, Goto A, Fujii K, Nakamura H, Itoh M, Wakasugi H, Suzuki K, Yonezawa K, Abe T, Shinomura Y. Desquamative esophagitis due to pemphigus vulgaris. Endoscopy 2011; 42 Suppl 2:E285. [PMID: 21086254 DOI: 10.1055/s-0030-1255569] [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: 12/10/2022]
Affiliation(s)
- Y Matunaga
- Department of Gastroenterology, Kushiro City General Hospital, Japan
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28
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Yonezawa K, Horie O, Yoshioka A, Matsuki S, Tenjin T, Tsukamura Y, Yoneda M, Shibata K, Koike Y, Nomura T, Yokoyama M, Urahama N, Ito M. Association between the neutrophil myeloperoxidase index and subsets of bacterial infections. Int J Lab Hematol 2011; 32:598-605. [PMID: 20201994 DOI: 10.1111/j.1751-553x.2010.01227.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The mean myeloperoxidase index (MPXI) is calculated during the routine complete blood count performed using the autoanalyzer ADVIA120/2120. The pattern of changes in the neutrophil myeloperoxidase levels in patients with specific infectious diseases was analyzed by assessing the MPXI levels. In patients with bacterial sepsis, identified by positive blood-culture tests, with (n = 29) and without (n = 51) systemic inflammatory response syndrome, the mean MPXI significantly reduced to -3.18 and -2.06, respectively. In contrast, among patients with nontuberculous nonseptic bacterial infections (n = 40), the mean MPXI significantly elevated to 5.51, while tuberculosis patients (n = 37) and patients with viral infection (n = 60) showed an unchanged MPXI (mean values, -0.46 and -1.06, respectively). Among the parameters of inflammation, only the C-reactive protein values showed a weak correlation with the MPXI levels. [Conclusion] These results indicate that MPXI is correlated with some specific infectious states, i.e. MPXI is low in bacterial sepsis and high in nontuberculous nonseptic bacterial infections. MPXI appears to be an independent and useful biomarker for the diagnosis and follow-up of infectious diseases, especially when the MPXI values are obtained at regular intervals during the disease courses of the patients.
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Affiliation(s)
- K Yonezawa
- Laboratory of Hematology, Division of Medical Biophysics, Kobe University Graduate School of Health Sciences, Suma-ku, Kobe, Japan
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29
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Tagami T, Tosa R, Hirama H, Yonezawa K, Omura M, Akiyama G, Masuno T, Yamamoto Y, Kushimoto S, Yokota H. A prospective pilot study of the effect of neutrophil elastase on the pulmonary vascular permeability in patients with pneumonia. Crit Care 2010. [PMCID: PMC2934490 DOI: 10.1186/cc8411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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30
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Hasegawa Y, Goto A, Nishimura S, Sukawa Y, Fujii K, Suzuki K, Yonezawa K, Abe T, Shinomura Y, Yoshida Y. Cytomegalovirus gastritis after treatment with rituximab. Endoscopy 2009; 41 Suppl 2:E199. [PMID: 19637127 DOI: 10.1055/s-0029-1214855] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- Y Hasegawa
- Department of Gastroenterology, Kushiro City General Hospital, Kushiro, Japan
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31
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Sukawa Y, Goto A, Okuda H, Suzuki K, Hasegawa Y, Yonezawa K, Abe T, Shinomura Y. Unexplained melena associated with a history of endovascular stent grafting of abdominal aortic aneurysms: aortoduodenal fistula. Endoscopy 2009; 41 Suppl 2:E84. [PMID: 19370524 DOI: 10.1055/s-0029-1214484] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- Y Sukawa
- Department of Gastroenterology and Rheumatology, Kushiro City General Hospital, Kushiro City, Japan
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32
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Tagami T, Kushimoto S, Masuno T, Tosa R, Yonezawa K, Hirama H, Imazu Y, Matsuda K, Yamamoto Y, Kawai M, Yokota H. Validation of the extravascular lung water by single transpulmonary thermodilution in the clinical setting. Crit Care 2009. [PMCID: PMC4084112 DOI: 10.1186/cc7390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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33
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Song SW, Tolba RH, Yonezawa K, Manekeller S, Minor T. Exogenous superoxide dismutase prevents peroxynitrite-induced apoptosis in non-heart-beating donor livers. Eur Surg Res 2008; 41:353-61. [PMID: 18852490 DOI: 10.1159/000162294] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2007] [Accepted: 05/13/2008] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To investigate the role of oxygen free radicals in the induction of apoptosis in non-heart-beating donor (NHBD) livers, and if superoxide dismutase (SOD) ameliorates these alterations. METHODS Rat livers were perfused via the portal vein with histidine/tryptophan/alpha-ketoglutarate solution from heart-beating donors (HBD) or 60-min warm ischemia from NHBD, with or without the addition of SOD. After 24 h, cold storage livers were evaluated by isolated reperfusion. RESULTS NHBD showed significantly higher enzyme leakage and elevated portal venous pressure (PVP) versus HBD. Bile and total adenine nucleotides (TAN) were significantly decreased. Apoptosis was prominent in sinusoidal lining cells, coupled with strong nitrotyrosine staining (NTR). The concentrations of nitric oxide and lipoperoxides were largely increased. SOD medication reduced hepatic enzyme release by 30% and lipoperoxides by nearly 50%. Apoptosis and NTR were significantly decreased, and PVP was strikingly reduced to normal values. A 3-fold enhancement in bile production and 1.5-fold increase in TAN of the liver tissue were also observed. CONCLUSION NHBD livers are prone to severe reoxygenation injury promoted by oxygen free radicals, massive nitrite oxide production and peroxynitrite-induced apoptosis within the sinusoids. Antioxidant medication with SOD should be considered as a useful means of preserving NHBD livers.
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Affiliation(s)
- S W Song
- Surgical Research Division, Department of Surgery, University of Bonn, Bonn, Germany
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34
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Komuro K, Nakanishi Y, Iwashiro N, Ohara M, Ishizaka M, Takeda S, Kaneko R, Ogasawara Y, Yonezawa K. Examination of sentinel lymph node in breast cancer by the combination of computed tomography lymphography, blue dye method and fluorescence navigation. EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)70492-0] [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: 10/22/2022] Open
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35
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Avruch J, Hara K, Lin Y, Liu M, Long X, Ortiz-Vega S, Yonezawa K. Insulin and amino-acid regulation of mTOR signaling and kinase activity through the Rheb GTPase. Oncogene 2006; 25:6361-72. [PMID: 17041622 DOI: 10.1038/sj.onc.1209882] [Citation(s) in RCA: 241] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Target of Rapamycin (TOR), a giant protein kinase expressed by all eucaryotic cells, controls cell size in response to nutrient signals. In metazoans, cell and organismal growth is controlled by nutrients and the insulin/insulin-like growth factor (IGF) system, and the understanding of how these inputs coordinately regulate TOR signaling has advanced greatly in the past 5 years. In single-cell eucaryotes and Caenorhabditis elegans, TOR is a dominant regulator of overall mRNA translation, whereas in higher metazoans, TOR controls the expression of a smaller fraction of mRNAs that is especially important to cell growth. TOR signals through two physically distinct multiprotein complexes, and the control of cell growth is mediated primarily by TOR complex 1 (TORC1), which contains the polypeptides raptor and LST8. Raptor is the substrate binding element of TORC1, and the ability of raptor to properly present substrates, such as the translational regulators 4E-BP and p70 S6 kinase, to the TOR catalytic domain is essential for their TOR-catalysed phosphorylation, and is inhibited by the Rapamycin/FKBP-12 complex. The dominant proximal regulator of TORC1 signaling and kinase activity is the ras-like small GTPase Rheb. Rheb binds directly to the mTOR catalytic domain, and Rheb-GTP enables TORC1 to attain an active configuration. Insulin/IGF enhances Rheb GTP charging through the ability of activated Akt to inhibit the Rheb-GTPase-activating function of the tuberous sclerosis heterodimer (TSC1/TSC2). Conversely, energy depletion reduces Rheb-GTP charging through the ability of the adenosine monophosphate-activated protein kinase to phosphorylate TSC2 and stimulate its Rheb-GTPase activating function, as well as by HIFalpha-mediated transcriptional responses that act upstream of the TSC1/2 complex. Amino-acid depletion inhibits TORC1 acting predominantly downstream of the TSC complex, by interfering with the ability of Rheb to bind to mTOR. The components of the insulin/IGF pathway to TORC1 are now well established, whereas the elements mediating the more ancient and functionally dominant input of amino acids remain largely unknown.
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Affiliation(s)
- J Avruch
- Diabetes Research Lab, Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114, USA.
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Satoh K, Kubota S, Kawakura K, Anzai T, Hanada A, Yonezawa K, Tateishi T, Takeda S, Iwai M. [Rapidly enlarging giant left ventricular pseudo-false aneurysm after myocardial infarction; report of a case]. Kyobu Geka 2006; 59:225-8. [PMID: 16528996] [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: 05/07/2023]
Abstract
A 71-year-old man was admitted to our hospital with acute myocardial infarction and cardiac tamponade. After pericardial drainage, his hemodynamics was improved. Because more than 3 days had been passed after the onset of myocardial infarction and he had severe renal dysfunction, emergent coronary angiography (CAG) was not performed. After improvement of his general status, coronary angiography and percutaneous catheter intervention was carried out, and his course was uneventful. But transthoracic echocardiography before discharge revealed a giant posterior psudoaneurysm. Patch closure and coronary artery bypass grafting was carried out under cardiopulmonary bypass, and postoperative course was uneventful. Postoperative left ventriculogram revealed disappearance of pseudoaneurysm, but relatively large akinetic area of posterior-inferior wall was left around a patch. Pseudo-false aneurysm was diagnosed by histological examination.
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Affiliation(s)
- K Satoh
- Department of Cardiovascular Surgery, National Hospital Organization, Hakodate, Japan
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37
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Murase Y, Kobayashi J, Asano A, Yamaaki N, Yonezawa K, Muramoto H, Mabuchi H. Effects of raloxifene on adipocytokines in Japanese osteoporotic postmenopausal women with and without type 2 diabetes. Horm Metab Res 2006; 38:130-3. [PMID: 16523415 DOI: 10.1055/s-2006-925140] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Y Murase
- Department of Molecular Genetics of Cardiovascular Disorders, Graduate School of Medical Science, Kanazawa University, Ishikawa, Japan.
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38
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Tolba RH, Yonezawa K, Song S, Burger C, Minor T. Synergistic value of fibrinolysis and hypothermic aerobic preservation with oxygen in the protection of livers from non-heart-beating donors: an experimental model. Transplant Proc 2005; 36:2927-30. [PMID: 15686662 DOI: 10.1016/j.transproceed.2004.11.094] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The chronic organ shortage has led to the reconsideration of marginal donor pools such as non-heart-beating donors (NHBD). The use of these livers is limited due to their minimal tolerance for cold preservation. The aim of this study was to examine the combination of two different therapeutic strategies for the preservation of livers from NHBD. The livers of male Wistar rats were harvested after the induction of cardiac arrest via phrenotomy (30, 90 minutes). Livers were perfused with 10 mL of UW solution (UW), followed by hypothermic preservation with or without insufflation of gaseous oxygen (O2). In one group a fibrinolytic preflush (10 mL of Ringer's containing 7500 IU of streptokinase) was performed with subsequent preservation with O2 (O2+SK). After storage (24 h/4 degrees C/UW) livers were reperfused in vitro. Livers retrieved from heart beating donors served as controls. The results showed that even after only 30 minutes of warm ischemia livers displayed a serious disturbance in vascular perfusion (portal venous pressure, PVP = 7.4 +/- 0.2* versus control: 4.1 +/- 0.5 mmHg), associated with a more than 10-fold increase in enzyme release (ALT: 26819 +/- 513* versus control 683 +/- 152 mU/g/L), which was consistent with a significant depression in bile synthesis (1.21 +/- 0.35* versus 19.36 +/- 2.16 microL/g/45 min). However, these impairments could be prevented with O2. Even after 90 minutes of WI, the function was significant better using aerobic preservation (ALT: 3204 +/- 549 mU/g/L). With a supplementary fibrinolytic preflush, we effectively preserved livers up to 90 minutes of WI with results comparable to livers from heart beating donors with no WI (ALT: 1623 +/- 432 mU/g/L). The combination of these two techniques represents a new therapeutic approach for livers with extended or unclear WI periods in non-heart-beating donors (*P <.05 versus control).
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Affiliation(s)
- R H Tolba
- University of Bonn Medical Center, Bonn, Germany
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39
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Abstract
Although mTOR is a member of the PI-kinase-related kinase family, mTOR possesses serine-threonine protein kinase activities, which phosphorylate itself and exogenous substrates. mTOR autophosphorylates in vitro and is phosphorylated in vivo on serine residues. Ser2481, which is located in a His-Ser-Phe motif near the conserved carboxyl-terminal mTOR tail, has been reported as an autophosphorylation site in vivo and in vitro. The significance of the autophosphorylation remains unclear. Another phosphorylation site on mTOR in vivo is Ser2448. This site appears not to be an autophosphorylation site but a site potentially phosphorylated by protein kinase B (PKB). mTOR immunopurified from culture cells or tissues phosphorylates in vitro p70 S6 kinase (p70) alpha and p70beta, mainly on Thr412 or Thr401, respectively, located in a Phe-Thr-Tyr motif. Another exogenous substrate phosphorylated by immunopurified mTOR in vitro is eIF4E-binding protein 1 (4E-BP1) at sites corresponding to those phosphorylated in vivo during insulin stimulation in a Ser/Thr-Pro motif. Recently, raptor, a 150-kDa TOR-binding protein that contains a carboxyl-terminal WD-repeat domain, was discovered as a scaffold for the mTOR-catalyzed phosphorylation of 4E-BP1 and for the mTOR-mediated phosphorylation and activation of p70alpha. Other potential substrates phosphorylated by mTOR are nPKCdelta, nPKCepsilon, STAT3, and p53. The requirement of raptor for binding to and phosphorylation by mTOR of these potential substrates would clarify their physiological importance in the mTOR signaling pathway.
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Affiliation(s)
- K Yonezawa
- Biosignal Research Center, Kobe University, 657-8501, Kobe, Japan.
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40
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Saegusa T, Ito Y, Yonezawa K, Inubushi Y, Tomita S. Synthetic reactions by complex catalysts. XXIII. Cyclopropanes from .alpha.-chloro ketones, esters, and nitriles, olefins, and a copper(I) oxide-isonitrile complex. J Am Chem Soc 2002. [DOI: 10.1021/ja00745a041] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [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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41
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Avruch J, Belham C, Weng Q, Hara K, Yonezawa K. The p70 S6 kinase integrates nutrient and growth signals to control translational capacity. Prog Mol Subcell Biol 2002; 26:115-54. [PMID: 11575164 DOI: 10.1007/978-3-642-56688-2_5] [Citation(s) in RCA: 136] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- J Avruch
- Diabetes Unit and Medical Services, Department of Molecular Biology, Massachusetts General Hospital, Boston, Massachusetts 02114, USA
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42
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Takei N, Kawamura M, Hara K, Yonezawa K, Nawa H. Brain-derived neurotrophic factor enhances neuronal translation by activating multiple initiation processes: comparison with the effects of insulin. J Biol Chem 2001; 276:42818-25. [PMID: 11551908 DOI: 10.1074/jbc.m103237200] [Citation(s) in RCA: 163] [Impact Index Per Article: 7.1] [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: 11/06/2022] Open
Abstract
The effects of neurotrophic factors on translational activation were investigated in cortical neurons. Brain-derived neurotrophic factor (BDNF) increased protein synthesis within 30 min, whereas insulin produced a weaker enhancement of protein synthesis. BDNF-triggered protein synthesis was inhibited by LY294002, PD98059, and rapamycin, whereas the effect of insulin was unaffected by PD98059. To explore the mechanisms underlying this effect, the protein phosphorylation cascades that lead to the activation of translation initiation in neurons were examined. BDNF induced the phosphorylation of both eukaryote initiation factor (eIF) 4E and its binding protein (eIF4E-binding protein-1). The former reaction was inhibited by PD98059, whereas the latter was inhibited by LY294002 or rapamycin. In agreement, BDNF induced the phosphorylation of mammalian TOR (target of rapamycin) and enhanced its kinase activity toward eIF4E-binding protein-1. In contrast, insulin failed to activate MAPK and did not induce the phosphorylation of eIF4E. Since BDNF and insulin increased the activity of eIF2B and eIF2, the only difference between them was eIF4E phosphorylation. Thus, this may explain the lower activity of insulin in potentiating neuronal protein synthesis. These results suggest strongly that BDNF simultaneously activates multiple signaling cascades consisting of phosphatidylinositol 3-kinase, mammalian TOR, and MAPK to enhance translation initiation in neurons.
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Affiliation(s)
- N Takei
- Department of Molecular Neurobiology, Brain Research Institute, Niigata University, Asahimachi 1, Niigata 951-8585, Japan.
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Minami T, Hara K, Oshiro N, Ueoku S, Yoshino K, Tokunaga C, Shirai Y, Saito N, Gout I, Yonezawa K. Distinct regulatory mechanism for p70 S6 kinase beta from that for p70 S6 kinase alpha. Genes Cells 2001; 6:1003-15. [PMID: 11733037 DOI: 10.1046/j.1365-2443.2001.00479.x] [Citation(s) in RCA: 22] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
BACKGROUND A novel ribosomal S6 kinase, termed p70 S6 kinase beta (p70beta), has a highly homologous amino acid sequence to that of p70/p85 S6 kinase (p70alpha). This includes the critical phosphorylation sites, Thr252, Ser394 and Thr412 in p70alpha1, which correspond to Thr241, Ser383 and Thr401 in p70beta1, respectively. However, the regulatory mechanism for p70beta remains to be elucidated. RESULTS We report here the expression and the mechanism of in vivo regulation of p70beta. Two isoforms, p70beta1 and p70beta2, were expressed in a variety of tissues at a different level. p70beta1 was mainly targeted to the nucleus, whereas p70beta2 dispersed throughout the cytoplasm including nucleoplasm. The kinase activity of p70beta1 was less sensitive to the inhibition induced by rapamycin, wortmannin and amino acid withdrawal than that of p70alpha. The portion of p70beta activity inhibited by rapamycin was rescued by the rapamycin-resistant mutant of the mammalian target of rapamycin (mTOR). Mutational analysis revealed that the phosphorylation of Thr241 and Thr401 in p70beta1 was indispensable for the kinase activity. In contrast, a p70beta1 mutant in which Ser383 was substituted with Gly (S383G) still retained nearly the half maximal activity. Sequential phosphorylation of wild-type and S383G mutant of p70beta1 with mTOR and 3-phosphoinositide-dependent protein kinase 1 (PDK1) in vitro synergistically activated their kinase activities. CONCLUSION These results indicate that p70beta is regulated by the mTOR- and PDK1-signalling pathways through a synergistic interaction between phosphorylated Thr241 and Thr401, while Ser383 plays minor role in their activation mechanism. Activated p70beta may be less sensitive to dephosphorylation mediated by putative phosphatases activated by rapamycin, amino acid withdrawal, and probably wortmannin.
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Affiliation(s)
- T Minami
- Biosignal Research Center, Kobe University, Kobe 657-8501, Japan
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Yonezawa K, Yamamoto Y, Yamamoto H, Ishikawa Y, Uchinami H, Taura K, Nakajima A, Yamaoka Y. Suppression of tumor necrosis factor-alpha production and neutrophil infiltration during ischemia-reperfusion injury of the liver after heat shock preconditioning. J Hepatol 2001; 35:619-27. [PMID: 11690708 DOI: 10.1016/s0168-8278(01)00191-x] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
BACKGROUND/AIMS Heat shock preconditioning provides the liver with ischemic tolerance. In this study we examined the effects of heat shock preconditioning on hepatic nonparenchymal cells in light of tumor necrosis factor-alpha (TNF-alpha) production and neutrophil infiltration. METHODS Rats were exposed to heat shock pretreatment at 42 degrees C in the heat shock group (group HS) and at 37 degrees C in the control group (group C). After a 48-h recovery, the left hepatic lobes were given a 90-min ischemia and reperfused. Plasma concentrations of TNF-alpha, cytokine-induced neutrophil chemoattractant (CINC) and alanine aminotransferase (ALT) were measured. Liver tissues were checked for the presence of TNF-alpha mRNA. Histological staining for CINC and polymorphonuclear leukocyte (PMN) was also evaluated. RESULTS In group HS, plasma TNF-alpha levels were significantly more suppressed than in group C (P<0.0001). Expressions of TNF-alpha mRNA in the liver was suppressed in group HS. Production of CINC 2 h after reperfusion was reduced in group HS (P<0.05). PMN infiltration was significantly reduced in group HS (P<0.01). In group HS, liver histology revealed less cellular damage and the plasma level of ALT was significantly reduced (P<0.0001). CONCLUSIONS Heat shock preconditioning suppressed the production of TNF-alpha and CINC in the liver during reperfusion and consequently reduced neutrophil infiltration.
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Affiliation(s)
- K Yonezawa
- Department of Gastroenterological Surgery, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
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Matsuyama S, Nakamura M, Yonezawa K, Shimada T, Ohashi F, Takamori Y, Kubo K. Expression patterns of the erbB subfamily mRNA in canine benign and malignant mammary tumors. J Vet Med Sci 2001; 63:949-54. [PMID: 11642281 DOI: 10.1292/jvms.63.949] [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: 11/22/2022] Open
Abstract
ErbB subfamily genes, known as proto-oncogenes, encode receptor tyrosine kinases, and are expressed in relation to tumorigenesis of the mammary gland in humans. In this study, we examined the expression of erbB subfamily mRNAs in two canine normal mammary glands and 12 mammary tumor samples by reverse transcriptase-coupled polymerase chain reaction (RT-PCR). Each primer set was designed from the nucleotide sequence of the region conserved in erbB subfamily cDNA among other species. No erbB subfamily mRNAs were expressed in the normal mammary gland. In contrast, all of the subfamily mRNAs were expressed in a benign mammary tumor, and more than one type of the subfamily mRNA were observed in 11 malignant mammary tumors. The length of RT-PCR products were 380 bp for erbB1, 500 bp for erbB2, 644 bp for erbB3, and 416 bp for erbB4. These sequences were highly homologous to the cDNA sequences of other species. Therefore, these results suggest that the expression of erbB subfamily mRNAs in canine mammary tumors plays an important role in tumorigenesis of the mammary gland.
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Affiliation(s)
- S Matsuyama
- Department of Veterinary Science, Graduate School of Agriculture and Sciences, Osaka Prefecture University, Sakai, Japan
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Nicolaides A, Matsushita T, Yonezawa K, Sawai S, Tomioka H, Stracener LL, Hodges JA, McMahon RJ. The elusive benzocyclobutenylidene: a combined computational and experimental attempt. J Am Chem Soc 2001; 123:2870-6. [PMID: 11456975 DOI: 10.1021/ja0039482] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Ab initio and density functional theory calculations predict that benzocyclobutenylidene (1) has a singlet ground state in contrast to the parent phenylcarbene and many other simply substituted arylcarbenes. Calculations also predict that 1 should lie in a relatively deep potential well, while its triplet state is 14.5 kcal mol(-)(1) higher in energy. However, attempts to observe 1 directly by photolysis of two different nitrogenous precursors were not successful. Irradiation of diazobenzocyclobutene (7) (lambda > 534 nm or lambda > 300 nm) or azibenzocyclobutene (10) (lambda > 328 nm) in Ar matrixes at 10 K leads to the formation of the strained cycloalkyne 7-methylenecyclohepta-3,5-dien-1-yne (3). (13)C-Labeled 3 was also prepared in a similar manner. There is very good agreement between experimental IR spectra and computationally derived harmonic vibrational frequencies for 3 and [(13)C]-3 and excellent agreement between observed and calculated isotopic shifts. Prolonged short-wavelength irradiation converts 3 into benzocyclobutadiene (5). Phenylacetylene (6) and benzocyclobutadiene dimer (11) were identified as products arising from flash vacuum pyrolysis of diazirine 10 at 500 degrees C.
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Affiliation(s)
- A Nicolaides
- Chemistry Department for Materials, Faculty of Engineering, Mie University, Tsu, Mie 514-8507 Japan
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Okita K, Yonezawa K, Nishijima H, Hanada A, Nagai T, Murakami T, Kitabatake A. Muscle high-energy metabolites and metabolic capacity in patients with heart failure. Med Sci Sports Exerc 2001; 33:442-8. [PMID: 11252072 DOI: 10.1097/00005768-200103000-00017] [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: 11/26/2022]
Abstract
UNLABELLED OKITA, K., K. YONEZAWA, H. NISHIJIMA, A. HANADA, T. NAGAI, T. MURAKAMI, and A. KITABATAKE. Muscle high-energy metabolites and metabolic capacity in patients with heart failure. Med Sci. Sports. Exerc., Vol. 33, No. 3, 2001, pp. 442-448. BACKGROUND Various abnormalities in skeletal muscle have been demonstrated by biopsy in patients with chronic heart failure (CHF). In mammalian muscles, high-energy metabolite composition at rest (HEMC) provides data on important metabolic characteristics; however, the significance of HEMC has not been clarified in patients with CHF. Therefore, we investigated HEMC in normal subjects and patients with CHF and examined its relation to muscle metabolic capacity and exercise tolerance. METHODS High-energy metabolites (phosphocreatine (PCr), inorganic phosphate (Pi), and ATP) in resting calf muscle were measured by 31P-magnetic resonance spectroscopy (31P-MRS), and ratios of Pi to PCr, Pi to ATP, and PCr to ATP were calculated in 34 patients with CHF and 13 age- and size-matched normal subjects. Muscle metabolism was evaluated during local exercise of unilateral plantar flexion by 31P-MRS. Metabolic capacity was estimated by the rate of PCr breakdown in relation to the workload. Systemic exercise capacity was evaluated by a bicycle ergometer. RESULTS The ratio of PCr to ATP was significantly increased in patients with CHF compared with controls (3.06 +/- 0.43 vs 2.72 +/- 0.36, P < 0.05) and was significantly correlated with metabolic capacity (r = -0.37, P < 0.01) and with peak oxygen uptake (r = -0.45, P < 0.01). There was a significant correlation between metabolic capacity and peak oxygen uptake (r = 0.53, P < 0.001). CONCLUSION HEMC was altered in patients with CHF, and this change was related to metabolic capacity and exercise capacity. These findings provide new insight into the mechanism of impaired muscle metabolism in CHF.
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Affiliation(s)
- K Okita
- Department of Cardiovascular Medicine, Hokkaido University School of Medicine, Sapporo 060-8638, Japan.
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Yamamoto Y, Terajima H, Ishikawa Y, Uchinami H, Taura K, Nakajima A, Yonezawa K, Yamamoto N, Ikai I, Yamaoka Y. In situ pedicle resection in left trisegmentectomy of the liver combined with reconstruction of the right hepatic vein to an inferior vena caval segment transpositioned from the infrahepatic portion. J Am Coll Surg 2001; 192:137-41. [PMID: 11192916 DOI: 10.1016/s1072-7515(00)00727-4] [Citation(s) in RCA: 17] [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: 11/19/2022]
Abstract
A combination of an in situ pedicle resection of the liver and a hepatic vein reconstruction using a cranially transpositioned segment of the IVC after implantation of an ePTFE graft at the missing IVC was useful in treating a patient who suffered from a huge liver tumor involving all of the hepatic venous confluence and the IVC. Although early tumor recurrence remains an unresolved problem for such patients, a surgical approach is feasible. This technique can be justified as a therapeutic modality, not only because it improves quality of life, but also because it provides patients with an opportunity for additional treatment.
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Affiliation(s)
- Y Yamamoto
- Department of Gastroenterological Surgery, Kyoto University Graduate School of Medicine, Japan
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Kanno M, Nakamura S, Uotani C, Yamanaka S, Terasaki Y, Taniya T, Yonezawa T, Yonezawa K, Watanabe K. Successful chemo-endocrine therapy for multiple bone metastases and myelophthisis caused by occult breast carcinoma. Int J Clin Oncol 2000. [DOI: 10.1007/pl00012070] [Citation(s) in RCA: 2] [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: 11/28/2022]
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Yonezawa K, Kinoshita E, Watano Y, Zentoh H. Formulation and estimation of the effective size of stage-structured populations in Fritillaria camtschatcensis, a perennial herb with a complex life history. Evolution 2000; 54:2007-13. [PMID: 11209777 DOI: 10.1111/j.0014-3820.2000.tb01244.x] [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: 11/29/2022]
Abstract
The effective population size (Ne) is formulated based on a stage-structured population model and is estimated for two populations of Fritillaria camtschatcensis (L.) Ker-Gawl. (Liliaceae), a perennial, mainly clonally reproducing herb. Plants in these populations change life-history stages year by year, either upward or downward across three unambiguously identifiable stages: one-leaf, nonflowering; multileaf nonflowering; and multileaf, flowering stages. Plants of all stages produce clonal progeny (bulblets) each year, and death of plants occurs only in the first stage. The populations are nearly at equilibrium in both population size and stage structure. Ne is estimated to be 20-30% of the census population size (N), leading to the prediction that a population size of about 20,000 or more will be needed to conserve the normal level of the gene diversity (Ne > or = 5000). With the current demographic pattern of this species, accelerated growth of the first-stage plants with reduced survival of the second- and third-stage plants will increase both the annual (Ny/N) and generation time (Ne/N) effective sizes of population.
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Affiliation(s)
- K Yonezawa
- Department of Biotechnology, Kyoto Sangyo University, Japan.
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