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Shimohata H, Usui J, Tawara-Iida T, Ebihara I, Ishizu T, Maeda Y, Kobayashi H, Numajiri D, Kaneshige A, Sega M, Yamashita M, Ohgi K, Maruyama H, Takayasu M, Hirayama K, Kobayashi M, Yamagata K. NT-pro BNP level at dialysis initiation is a useful biomarker for predicting hospitalization for ischemic heart disease. Clin Exp Nephrol 2024; 28:457-464. [PMID: 38238500 DOI: 10.1007/s10157-023-02442-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 11/28/2023] [Indexed: 04/23/2024]
Abstract
BACKGROUND Patients with end-stage kidney disease (ESKD) are at high risk of cardiovascular disease including stroke, heart failure, and ischemic heart disease (IHD). To prevent the occurrence and progression of CVD, a reliable prognostic cardiac biomarker is essential. We investigated the prognostic value of NT-proBNP for each incident type of CVD. METHODS Male patients from the Ibaraki Dialysis Initiation Cohort (iDIC) study with preserved serum samples from dialysis initiation day (n = 212) were analyzed. Patients were classified into four groups according to quartiles of baseline NT-pro BNP levels. The relationship between NT-proBNP levels at the initiation of dialysis and the subsequent incidence of hospitalization events due to IHD, heart failure, and stroke was analyzed. RESULTS The incidence rate for hospitalization due to IHD was significantly higher in the highest NT-proBNP category (Log rank p = 0.008); those of stroke and heart failure showed no significant differences among quartiles. Cox proportional hazards regression analysis revealed that serum NT-proBNT was the only prognostic factor for hospitalization for IHD after adjustment by major known IHD risk factors. (HR, 1.008; 95% confidence interval, 1.002-1.014; p = 0.01) The ROC curve analysis for the incidence of hospitalization due to IHD showed that NT-proBNP had an area under the curve (AUC) of 0.759 (95% CI 0.622-0.897; p = 0.004) at a cut-off value of 956.6 pg/mL. CONCLUSION NT-proBNP measurement at the initiation of dialysis therapy is useful to predict later hospitalization for IHD. TRIAL REGISTRATION UMIN000010806.
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Affiliation(s)
- Homare Shimohata
- Department of Nephrology, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuo, Ami, Inashiki, Ibaraki, 300-0395, Japan.
| | - Joichi Usui
- Department of Nephrology, Faculty of Medicine, University of Tsukuba, Ibaraki, Tsukuba, Japan
| | | | - Itaru Ebihara
- Department of Nephrology, Mito Saiseikai General Hospital, Ibaraki, Mito, Japan
| | - Takashi Ishizu
- Department of Nephrology, Ushiku Aiwa General Hospital, Ibaraki, Ushiku, Japan
| | - Yoshitaka Maeda
- Nephrology Division, Department of Internal Medicine, JA Toride Medical Center, Ibaraki, Toride, Japan
| | - Hiroaki Kobayashi
- Department of Nephrology, Ibaraki Prefectural Center Hospital, Ibaraki, Kasama, Japan
| | - Daichi Numajiri
- Department of Nephrology, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuo, Ami, Inashiki, Ibaraki, 300-0395, Japan
| | - Ayaka Kaneshige
- Department of Nephrology, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuo, Ami, Inashiki, Ibaraki, 300-0395, Japan
| | - Masatoshi Sega
- Department of Nephrology, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuo, Ami, Inashiki, Ibaraki, 300-0395, Japan
| | - Marina Yamashita
- Department of Nephrology, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuo, Ami, Inashiki, Ibaraki, 300-0395, Japan
| | - Kentaro Ohgi
- Department of Nephrology, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuo, Ami, Inashiki, Ibaraki, 300-0395, Japan
| | - Hiroshi Maruyama
- Department of Nephrology, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuo, Ami, Inashiki, Ibaraki, 300-0395, Japan
| | - Mamiko Takayasu
- Department of Nephrology, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuo, Ami, Inashiki, Ibaraki, 300-0395, Japan
| | - Kouichi Hirayama
- Department of Nephrology, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuo, Ami, Inashiki, Ibaraki, 300-0395, Japan
| | | | - Kunihiro Yamagata
- Department of Nephrology, Faculty of Medicine, University of Tsukuba, Ibaraki, Tsukuba, Japan
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Fu C, Wang M, Lu Y, Pan J, Li Y, Li Y, Wang Y, Wang A, Huang Y, Sun J, Liu C. Polygonum orientale L. Alleviates Myocardial Ischemia-Induced Injury via Activation of MAPK/ERK Signaling Pathway. Molecules 2023; 28:molecules28093687. [PMID: 37175097 PMCID: PMC10180121 DOI: 10.3390/molecules28093687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/06/2023] [Accepted: 04/20/2023] [Indexed: 05/15/2023] Open
Abstract
Although Polygonum orientale L. (PO) has a beneficial effect on treatment of myocardial ischemia (MI), its mechanism remains unclear. This study aimed to explore the pharmacological mechanism of PO against MI through MAPK signaling pathways. Firstly, the therapeutic effect of PO was evaluated for treatment of MI mice. Using Western blot and immunohistochemistry, the influence of PO on MAPK signaling pathways and cell apoptosis was investigated. Subsequently, one key pathway (ERK) of MAPK signaling pathways was screened out, on which PO posed the most obvious impact. Finally, an inhibitor of ERK1/2 was utilized to further verify the regulatory effect of PO on the MAPK/ERK signaling pathway. It was found that PO could reduce the elevation of the ST segment; injury of heart tissue; the activity of LDH, CK, NOS, cNOS and iNOS and the levels of NO, BNP, TNF-α and IL-6. It is notable that PO could significantly modulate the protein content of p-ERK/ERK in mice suffering from MI but hardly had an effect on p-JNK/JNK and p-p38/p38. Additionally, the expressions of bax, caspase3 and caspase9 were inhibited in heart tissue in the PO-treated group. To evaluate whether ERK1/2 inhibitor (PD98059) could block the effect of PO on treatment of MI, both PO and PD98059 were given to mice with MI. It was discovered that the inhibitor indeed could significantly reverse the regulatory effects of PO on the above indicators, indicating that PO could regulate p-ERK/ERK. This study provides experimental evidence that PO extenuates MI injury, cardiomyocyte apoptosis and inflammation by activating the MAPK/ERK signaling pathway.
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Affiliation(s)
- Changli Fu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, China
- School of Pharmacy, Guizhou Medical University, Guiyang 550004, China
| | - Mingjin Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, China
- School of Pharmacy, Guizhou Medical University, Guiyang 550004, China
| | - Yuan Lu
- Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang 550004, China
| | - Jie Pan
- State Key Laboratory of Functions and Applications of Medicinal Plants, Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, China
| | - Yueting Li
- Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang 550004, China
| | - Yongjun Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, China
| | - Yonglin Wang
- Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang 550004, China
| | - Aimin Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, China
| | - Yong Huang
- Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang 550004, China
| | - Jia Sun
- Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang 550004, China
| | - Chunhua Liu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, China
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Vasciaveo L, Zanzarelli E, D'Antonio F. Fetal cardiac function evaluation: A review. JOURNAL OF CLINICAL ULTRASOUND : JCU 2023; 51:215-224. [PMID: 36785505 DOI: 10.1002/jcu.23421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 12/20/2022] [Accepted: 12/22/2022] [Indexed: 06/18/2023]
Abstract
The aim of this review is to provide an up to date on the current use of fetal echocardiography in assessing the fetal cardiac function and its potential research and clinical applications. Despite classically is been used for prenatal diagnosis of fetal heart defects, assessment of fetal cardiac function has been recently proposed as a fundamental tool to assess pregnancies complicated by several disorders with long-term impact on post-natal cardiovascular health, such as placental insufficiency and fetal growth restriction. In this review we present anatomical and functional fetal cardiac development mechanisms and an overview of the currently available techniques for evaluating fetal heart function.
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Affiliation(s)
- Lorenzo Vasciaveo
- Maternal Fetal Medicine Unit, Department of Obstetrics and Gynaecology, University of Foggia, Foggia, Italy
| | - Erika Zanzarelli
- Maternal Fetal Medicine Unit, Department of Obstetrics and Gynaecology, University of Foggia, Foggia, Italy
| | - Francesco D'Antonio
- Centre for High-Risk Pregnancy and Fetal Care, Department of Obstetrics and Gynecology, University of Chieti, Chieti, Italy
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Gergs U, Gerigk T, Wittschier J, Schmidbaur CT, Röttger C, Mahnkopf M, Edler H, Wache H, Neumann J. Influence of Serotonin 5-HT 4 Receptors on Responses to Cardiac Stressors in Transgenic Mouse Models. Biomedicines 2021; 9:569. [PMID: 34070090 PMCID: PMC8158346 DOI: 10.3390/biomedicines9050569] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/12/2021] [Accepted: 05/14/2021] [Indexed: 12/22/2022] Open
Abstract
The current study aimed to deepen our knowledge on the role of cardiac 5-HT4 receptors under pathophysiological conditions. To this end, we used transgenic (TG) mice that overexpressed human 5-HT4a receptors solely in cardiac myocytes (5-HT4-TG mice) and their wild-type (WT) littermates that do not have functional cardiac 5-HT4 receptors as controls. We found that an inflammation induced by lipopolysaccharide (LPS) was detrimental to cardiac function in both 5-HT4-TG and WT mice. In a hypoxia model, isolated left atrial preparations from the 5-HT4-TG mice went into contracture faster during hypoxia and recovered slower following hypoxia than the WT mice. Similarly, using isolated perfused hearts, 5-HT4-TG mice hearts were more susceptible to ischemia compared to WT hearts. To study the influence of 5-HT4 receptors on cardiac hypertrophy, 5-HT4-TG mice were crossbred with TG mice overexpressing the catalytic subunit of PP2A in cardiac myocytes (PP2A-TG mice, a model for genetically induced hypertrophy). The cardiac contractility, determined by echocardiography, of the resulting double transgenic mice was attenuated like in the mono-transgenic PP2A-TG and, therefore, largely determined by the overexpression of PP2A. In summary, depending on the kind of stress put upon the animal or isolated tissue, 5-HT4 receptor overexpression could be either neutral (genetically induced hypertrophy, sepsis) or possibly detrimental (hypoxia, ischemia) for mechanical function. We suggest that depending on the underlying pathology, the activation or blockade of 5-HT4 receptors might offer novel drug therapy options in patients.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Joachim Neumann
- Institute for Pharmacology and Toxicology, Medical Faculty, Martin Luther University Halle-Wittenberg, 06097 Halle (Saale), Germany; (U.G.); (T.G.); (J.W.); (C.T.S.); (C.R.); (M.M.); (H.E.); (H.W.)
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Jean G, Deleaval P, Chazot C. [Natriuretic peptides in dialysis: From theory to clinical practice]. Nephrol Ther 2020; 17:1-11. [PMID: 32409292 DOI: 10.1016/j.nephro.2019.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 08/25/2019] [Indexed: 10/24/2022]
Abstract
Cardiologists and emergency-wards physicians are used to check natriuretic peptides serum level, mainly B-type natriuretic peptide and N-terminal pro-Brain natriuretic peptide for acute cardiac failure diagnosis. Due to their accumulation in chronic kidney disease and their elimination by dialysis, natriuretic peptides sampling remains debatable in chronic kidney disease patients. In dialysis patients, high natriuretic peptides values are associated with mortality, left ventricular hypertrophy and cardiac failure. However, a single value cannot provide a reliable diagnosis. Our clinical practice is as follows: First, we prefer B-type natriuretic peptide to N-terminal pro-Brain natriuretic peptide because of its shorter half-life, with less impact of renal function and dialysis, making its interpretation easier in case of advanced chronic kidney disease or in dialysis patients; second, we define a reference value of B-type natriuretic peptide at dry weight from serial measurements; third, the B-type natriuretic peptide changes are interpreted according to extracellular fluid and cardiac status, but also from the arteriovenous fistula blood flow. In stable dialysis patients, B-type natriuretic peptide is sampled monthly and weekly in unstable patients. We illustrate our experience using clinical cases of overhydration, new cardiac disease onset, hypovolemia and arteriovenous fistula with high blood flow. Longitudinal follow-up of B-type natriuretic peptide is an important advance in dialysis patients in order to detect and treat extracellular fluid variations and cardiac disease status early, both important factors associated with hard outcomes.
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Affiliation(s)
- Guillaume Jean
- Service de néphrologie et dialyse, NephroCare Tassin-Charcot, 7, avenue du Maréchal-Foch, 69110 Sainte-Foy-les-Lyon, France.
| | - Patrik Deleaval
- Service de néphrologie et dialyse, NephroCare Tassin-Charcot, 7, avenue du Maréchal-Foch, 69110 Sainte-Foy-les-Lyon, France
| | - Charles Chazot
- Service de néphrologie et dialyse, NephroCare Tassin-Charcot, 7, avenue du Maréchal-Foch, 69110 Sainte-Foy-les-Lyon, France
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Sarak T, Karadeniz M. The relationship between serum NT-proBNP levels and severity of coronary artery disease assessed by SYNTAX score in patients with acute myocardial infarction. Turk J Med Sci 2019; 49:1366-1373. [PMID: 31648513 PMCID: PMC7018338 DOI: 10.3906/sag-1902-26] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 06/14/2019] [Indexed: 12/14/2022] Open
Abstract
Background/aim In the present study, we aimed to investigate the relationship between NT-proBNP and SYNTAX score, which is a measure of the complexity of coronary artery disease. Materials and methods We enrolled 405 consecutive patients with myocardial infarction who underwent coronary angiographic examination. Patients were divided into 3 groups according to their SYNTAX scores. Those with SYNTAX score ≤22 were included in the low SYNTAX score group (LSTX), those with a score of 23–32 were included in the intermediate SYNTAX score group (ISTX), and those with a score of ≥33 were included in the high SYNTAX score group (HSTX). Results NT-proBNP levels were found to be significantly higher in the HSTX group compared to the other groups (P < 0.001) and in the ISTX group compared to the LSTX group (P < 0.001). The NT-proBNP levels demonstrated an increase from low SYNTAX score to high SYNTAX score tertiles. Conclusions NT-ProBNP levels in patients with myocardial infarction on admission were independently associated with extent, severity, and complexity of coronary atherosclerosis as assessed by SYNTAX score.
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Affiliation(s)
- Taner Sarak
- Department of Cardiology, Faculty of Medicine, Kırıkkale University, Kırıkkale, Turkey
| | - Muhammed Karadeniz
- Department of Cardiology, Faculty of Medicine, Kırıkkale University, Kırıkkale, Turkey
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Anttila K, Streng T, Pispa J, Vainio M, Nikinmaa M. Hypoxia exposure and B-type natriuretic peptide release from Langendorff heart of rats. Acta Physiol (Oxf) 2017; 220:28-35. [PMID: 27496203 PMCID: PMC5412841 DOI: 10.1111/apha.12767] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 07/04/2016] [Accepted: 08/02/2016] [Indexed: 11/29/2022]
Abstract
Aim We studied whether available oxygen without induced mechanical stretch regulates the release of the biologically active B‐type natriuretic peptide (BNP) from Langendorff heart. Methods Rat hearts were isolated and perfused with a physiological Krebs–Henseleit solution at a constant hydrostatic pressure in Langendorff set‐up. The basal O2 level of perfusate (24.4 ± 0.04 mg L−1) was gradually lowered to 3.0 ± 0.01 mg L−1 over 20 min using N2 gas (n = 7). BNP and O2 level were measured from coronary flow. During control perfusions (n = 5), the O2 concentration was kept at 26.6 ± 0.3 mg L−1. Results A low oxygen concentration in the perfusate was associated with a significant increase in BNP release (F = 40.4, P < 0.001). Heart rate decreased when the oxygen concentration in the perfusate reached 9.1 ± 0.02 mg L−1 and continued to fall in lower oxygen concentrations (F = 14.8, P < 0.001). There was also a significant but inverse correlation between BNP and oxygen in the coronary flow (R2 = 0.27, P < 0.001). Conclusion In the spontaneously beating Langendorff rat heart, a decreasing concentration of oxygen in the ingoing perfusion increased the secretion of BNP. The effect of oxygen was independent of mechanical stretch of the heart as it occurred even when the heart rate decreased but the pressure conditions remained constant. The difference in the oxygen capacitance of blood and Krebs–Henseleit solution appears to be a major factor affecting secretion of BNP, which is correlated with the oxygen tension of myocardial cells and affected both by the oxygen concentration and capacitance of solution perfusing the heart and by the coronary flow.
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Affiliation(s)
- K. Anttila
- Laboratory of Animal Physiology; Department of Biology; University of Turku; Turku Finland
| | - T. Streng
- Laboratory of Animal Physiology; Department of Biology; University of Turku; Turku Finland
- Department of Pharmacology, Drug Development and Therapeutics; University of Turku; Turku Finland
- Turku Center for Disease Modeling (TCDM); University of Turku; Turku Finland
| | - J. Pispa
- Laboratory of Animal Physiology; Department of Biology; University of Turku; Turku Finland
| | - M. Vainio
- Laboratory of Animal Physiology; Department of Biology; University of Turku; Turku Finland
| | - M. Nikinmaa
- Laboratory of Animal Physiology; Department of Biology; University of Turku; Turku Finland
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Abstract
PURPOSE OF REVIEW The goal of this article is to review potential expanded indications for neprilysin inhibitors. This article reviews the rationale and design for ongoing and future trials of sacubitril/valsartan in cardiovascular and non-cardiovascular disease. RECENT FINDINGS Randomized trial data are lacking for use of sacubitril/valsartan in acute heart failure and advanced heart failure. Mechanistic data from animal studies suggest a role for neprilysin inhibition in the treatment of post-myocardial infarction systolic dysfunction and heart failure with preserved ejection fraction. Beyond the cardiovascular system, renal and neurological function may be impacted by neprilysin inhibition. Forthcoming randomized trials will address the clinical impact of sacubitril/valsartan on these conditions. Neprilysin inhibition with sacubitril/valsartan offers a new therapeutic strategy with a broad range of potential therapeutic actions. In PARADIGM-HF, the combination of neprilysin and RAAS inhibition was proven to be superior to enalapril for patients with stable NYHA class II-III heart failure and reduced left ventricular ejection fraction. Preliminary data suggests it may also have a role in other cardiovascular and non-cardiovascular disease. Several ongoing and planned studies will determine the extent of its benefit for these other indications.
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Affiliation(s)
- Elizabeth Riddell
- Cardiovascular Division, Washington University School of Medicine, 660 S. Euclid Ave., Box 8086, St Louis, MO, 63110, USA
| | - Justin M Vader
- Cardiovascular Division, Washington University School of Medicine, 660 S. Euclid Ave., Box 8086, St Louis, MO, 63110, USA.
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Niizuma S, Iwanaga Y, Yahata T, Miyazaki S. Renocardiovascular Biomarkers: from the Perspective of Managing Chronic Kidney Disease and Cardiovascular Disease. Front Cardiovasc Med 2017; 4:10. [PMID: 28321399 PMCID: PMC5337832 DOI: 10.3389/fcvm.2017.00010] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2016] [Accepted: 02/16/2017] [Indexed: 12/17/2022] Open
Abstract
Mortality among the patients with chronic kidney disease (CKD) and end-stage renal disease (ESRD) remains high because of the very high incidence of cardiovascular disease (CVD) such as coronary artery disease, cardiac hypertrophy, and heart failure. Identifying CVD in patients with CKD/ESRD remains a significant hurdle and the early diagnosis and therapy for CVD is crucial in these patients. Therefore, it is necessary for the better management to identify and utilize cardiovascular (CV) biomarkers in profiling CVD risk and enabling stratification of early mortality. This review summarizes current evidence about renocardiovascular biomarkers: CV biomarkers in patients with CKD as well as with ESRD, emphasizing on the emerging biomarkers: B-type natriuretic peptide, cardiac troponins, copeptin, the biomarker of renal injury (neutrophil gelatinase-associated lipocalin), and the mineral and bone disorder hormone/marker (fibroblast growth factor-23). Furthermore, it discusses their potential roles especially in ESRD and in future diagnostic and therapeutic strategies for CVD in the context of managing cardiorenal syndrome.
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Affiliation(s)
| | - Yoshitaka Iwanaga
- Division of Cardiology, Kindai University Faculty of Medicine , Osakasayama , Japan
| | - Takaharu Yahata
- Department of Cardiology, Yokohama Chuo Hospital , Yokohama , Japan
| | - Shunichi Miyazaki
- Division of Cardiology, Kindai University Faculty of Medicine , Osakasayama , Japan
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Hamada M, Shigematsu Y, Takezaki M, Ikeda S, Ogimoto A. Plasma levels of atrial and brain natriuretic peptides in apparently healthy subjects: Effects of sex, age, and hemoglobin concentration. Int J Cardiol 2016; 228:599-604. [PMID: 27875739 DOI: 10.1016/j.ijcard.2016.11.197] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 11/06/2016] [Indexed: 12/30/2022]
Abstract
BACKGROUND To examine whether the use of one value of natriuretic peptides to define "normal" is appropriate in all individuals, and to assess the influence of sex, age, and other variables on atrial and brain natriuretic peptides (ANP, BNP) levels. METHODS AND RESULTS A total of 1375 apparently healthy people (women:155, men:1220), aged 18-70years were enrolled. Both ANP and BNP levels were higher in women than in men (ANP: 12.50±6.82pg/mL vs 8.18±4.19pg/mL; BNP: 9.85±7.63pg/mL vs 7.03±6.97pg/mL). The subjects were divided into three age groups: group I, 18-30years; group II, 30-50years; group III, 50-70years. First, the influence of age on ANP and BNP levels was examined. In women, both ANP and BNP levels were higher in groups II and III than those in group I. In men, ANP and BNP levels increased with age. Second, sex differences in ANP and BNP levels due to age were examined. ANP level was higher in women than that in men in all age groups. BNP level was higher in women than that in men in groups I and II. Multivariate analysis indicated that both ANP and BNP levels were influenced by age, hemoglobin level, and platelet counts. CONCLUSION Because ANP and BNP levels in healthy subjects are influenced by sex, age, and hemoglobin levels, the use of a single value to define "normal" in all individuals is not appropriate.
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Affiliation(s)
- Mareomi Hamada
- Division of Cardiology, Uwajima City Hospital, and the Former Industrial Doctor of Matsuyama Branch of Shikoku Electric Power Company, 1-1, Goten-machi, Uwajima, Ehime 798-8510, Japan.
| | - Yuji Shigematsu
- Fundamental and Clinical Nursing, Ehime University Graduate School of Medicine, and the Industrial Doctor of Matsuyama Branch of Shikoku Electric Power Company, Shitsukawa, Toon, Ehime 791-0295, Japan
| | - Masayuki Takezaki
- Industrial Doctor of Ehime Factory of Toray Industries, Inc., and the Former Industrial Doctor of Daio Paper Corporation, 1515, Tsutsui, Masaki-machi, Iyo-gun, Ehime 791-3193, Japan
| | - Shuntaro Ikeda
- Division of cardiology, Department of Integrated Medicine and Informatics, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime 791-0295, Japan
| | - Akiyoshi Ogimoto
- Division of Cardiology, Uwajima City Hospital, 1-1, Goten-machi, Uwajima, Ehime 798-8510, Japan
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Chioncel O, Collins SP, Greene SJ, Ambrosy AP, Vaduganathan M, Macarie C, Butler J, Gheorghiade M. Natriuretic peptide-guided management in heart failure. J Cardiovasc Med (Hagerstown) 2016; 17:556-68. [DOI: 10.2459/jcm.0000000000000329] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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A simplified protocol for the isolation and culture of cardiomyocytes and progenitor cells from neonatal mouse ventricles. Eur J Cell Biol 2015; 94:444-52. [PMID: 26153430 DOI: 10.1016/j.ejcb.2015.06.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 06/23/2015] [Accepted: 06/23/2015] [Indexed: 01/04/2023] Open
Abstract
The neonatal heart is a very useful tool for the study of biochemical pathways and properties of cardiomyocytes and as it has the potential to regenerate for a brief period of time from birth; it is also useful to study cardiac regeneration. However, as the heart matures, this proficiency for regeneration is reduced. This regenerative potential may be influenced by the microenvironment of the heart in the early stages of postnatal development and therefore, cell cultures derived at this stage may contain functional cardiomyocytes and progenitor cells. The aim of this study was to identify key steps in the isolation and culture of such early stage-neonatal mouse hearts to allow maximum migration of cardiomyocytes from the explant and their maintenance as functional, long term cultures. Explant cultures of mouse ventricles preserved 3-dimensional structure and generated migrating layers of cardiomyocytes that expressed alpha sarcomeric actin which could be further sub-cultured by enzymatic dissociation. Western blotting demonstrated expression of c-KIT, GATA4, alpha sarcomeric actin and connexin43 proteins after 20 days of explant culture. ACTA1, GATA4, and CX43 continued to express in five weeks old explant cultures while the c-KIT protein was expressed up to two passages during sub-culture. Real time PCR and SQRT PCR also demonstrated gene expression of cardiomyocyte markers in long term cultures. Migrating cells from the explants assembled into contracting spheroids after subculture and expressed the c-KIT protein. Progenitor markers CD44, CD90, and extracellular proteins, periostin and vimentin demonstrated the preservation of cellular heterogeneity in such cultures. Supplementation with Hydrocortisone maintained a cardioprotective environment and reduced the non-myocyte population. This is an optimized and efficient method for the generation of neonatal heart cultures that is not labor intensive and does not require supplementation with cytokines.
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Mitchell A, Misialek JR, Folsom AR, Duprez D, Alonso A, Jerosch-Herold M, Sanchez OA, Watson KE, Sallam T, Konety SH. Usefulness of N-terminal Pro-brain Natriuretic Peptide and Myocardial Perfusion in Asymptomatic Adults (from the Multi-Ethnic Study of Atherosclerosis). Am J Cardiol 2015; 115:1341-5. [PMID: 25816778 DOI: 10.1016/j.amjcard.2015.02.040] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Revised: 02/06/2015] [Accepted: 02/06/2015] [Indexed: 10/24/2022]
Abstract
This study sought to investigate the relation between myocardial perfusion and N-terminal pro-brain natriuretic peptide (NT-proBNP) in asymptomatic adults without overt coronary artery disease. NT-proBNP is a cardiac neurohormone secreted from the ventricles in response to ventricular volume expansion and pressure overload and may also be elevated in the setting of reduced myocardial perfusion. We hypothesized that reduced myocardial perfusion reserve (MPR) would be associated with elevated NT-proBNP in participants free of overt cardiovascular disease. MPR was measured by cardiac magnetic resonance, before and after adenosine infusion, in 184 MESA participants (mean age 60 ± 10.4, 58% white, 42% Hispanic, 44% women) without overt cardiovascular disease. MPR was modeled as hyperemic myocardial blood flow (MBF) adjusted for MBF at rest. A linear regression analysis, adjusted for demographics, established cardiovascular risk factors, left ventricular mass, coronary calcium score, body mass index, and medications, was used to determine the association between MPR and NT-proBNP. Participants with low hyperemic MBF were more likely to be older, male, diabetic, and have higher blood pressure and higher coronary artery calcium score. Mean hyperemic MBF was 3.04 ± 0.829 ml/min/g. MPR was inversely associated with NT-proBNP levels. In a fully adjusted model, every 1-SD decrement in MPR was associated with a 21% increment in NT-proBNP (p = 0.04). In conclusion, MPR is inversely associated with NT-proBNP level in this cross-sectional study of asymptomatic adults free of overt coronary artery disease, suggesting that higher NT-proBNP levels may reflect subclinical myocardial microvascular dysfunction.
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Puelacher C, Rudez J, Twerenbold R, Moreno Weidmann Z, Osswald S, Eckstein F, Lurati-Buse G, Pargger H, Mueller C. B-type natriuretic peptide secretion without change in intra-cardiac pressure. Clin Biochem 2014; 48:318-21. [PMID: 25526883 DOI: 10.1016/j.clinbiochem.2014.12.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Revised: 12/08/2014] [Accepted: 12/10/2014] [Indexed: 01/25/2023]
Abstract
OBJECTIVE In clinical cardiology, B-type natriuretic peptide (BNP) is used as a non-invasive surrogate marker for intra-cardiac filling pressures, particularly in patients with heart failure. It is unknown whether and to what extent increase in intravascular volume and/or sympathetic tone while maintaining constant intra-cardiac pressures leads to an increase in levels of BNP in vivo. DESIGN AND METHODS We aimed to test this hypothesis in an experimental in vivo model of patients directly after off-pump coronary artery bypass grafting admitted to the intensive care unit. These patients require high volumes of intravenous fluids titrated to keep intra-cardiac filling pressures and arterial blood pressure in the normal range while awakening from deep general anesthesia. In 27 consecutive patients, intra-cardiac filling pressures (using a pulmonary artery catheter) and levels of BNP were measured simultaneously every 6h. RESULTS At 0, 6, 12, and 18h, the pulmonary capillary wedge pressure remained constant (12±4, 13±3, 12±3, and 13±3mmHg, respectively; p=0.351). Similarly, right heart filling pressures did not change during the study period. In contrast, BNP levels increased significantly during the study period: Median levels were 82 [IQR 37-162] pg/ml at 0h, 153 [92-246] pg/ml at 6h, 274 [156-392] pg/ml at 12h, and 320 [200-528] pg/ml at 18h (p<0.001). No significant correlation between BNP levels and pulmonary capillary wedge pressures was found (r=0.052; p=0.604). CONCLUSIONS After cardiac surgery, BNP cannot be considered a reliable non-invasive surrogate for PCWP. In vivo, substantial BNP secretion occurs independently of PCWP in a setting of increasing intravascular volume and consciousness/sympathetic tone.
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Affiliation(s)
- Christian Puelacher
- Department of Cardiology & Cardiovascular Research Institute Basel, University Hospital, Basel, Switzerland
| | - Jasna Rudez
- Department of Cardiology & Cardiovascular Research Institute Basel, University Hospital, Basel, Switzerland
| | - Raphael Twerenbold
- Department of Cardiology & Cardiovascular Research Institute Basel, University Hospital, Basel, Switzerland
| | - Zoraida Moreno Weidmann
- Department of Cardiology & Cardiovascular Research Institute Basel, University Hospital, Basel, Switzerland
| | - Stefan Osswald
- Department of Cardiology & Cardiovascular Research Institute Basel, University Hospital, Basel, Switzerland
| | - Friedrich Eckstein
- Division of Cardio-Thoracic Surgery, University Hospital, Basel, Switzerland
| | - Giovanna Lurati-Buse
- Department of Anesthesia, Division of Operative Critical Care, University Hospital, Basel, Switzerland
| | - Hans Pargger
- Department of Anesthesia, Division of Operative Critical Care, University Hospital, Basel, Switzerland
| | - Christian Mueller
- Department of Cardiology & Cardiovascular Research Institute Basel, University Hospital, Basel, Switzerland.
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Heinonen I, Luotolahti M, Vuolteenaho O, Nikinmaa M, Saraste A, Hartiala J, Koskenvuo J, Knuuti J, Arjamaa O. Circulating N-terminal brain natriuretic peptide and cardiac function in response to acute systemic hypoxia in healthy humans. J Transl Med 2014; 12:189. [PMID: 24989366 PMCID: PMC4086279 DOI: 10.1186/1479-5876-12-189] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Accepted: 06/09/2014] [Indexed: 11/22/2022] Open
Abstract
Background As it remains unclear whether hypoxia of cardiomyocytes could trigger the release of brain natriuretic peptide (BNP) in humans, we investigated whether breathing normobaric hypoxic gas mixture increases the circulating NT-proBNP in healthy male subjects. Methods Ten healthy young men (age 29 ± 5 yrs, BMI 24.7 ± 2.8 kg/m2) breathed normobaric hypoxic gas mixture (11% O2/89% N2) for one hour. Venous blood samples were obtained immediately before, during, and 2 and 24 hours after hypoxic exposure. Cardiac function and flow velocity profile in the middle left anterior descending coronary artery (LAD) were measured by Doppler echocardiography. Results Arterial oxygen saturation decreased steadily from baseline value of 99 ± 1% after the initiation hypoxia challenge and reached steady-state level of 73 ± 6% within 20–30 minutes. Cardiac output increased from 6.0 ± 1.2 to 8.1 ± 1.6 L/min and ejection fraction from 67 ± 4% to 75 ± 6% (both p < 0.001). Peak diastolic flow velocity in the LAD increased from 0.16 ± 0.04 to 0.28 ± 0.07 m/s, while its diameter remained unchanged. In the whole study group, NT-proBNP was similar to baseline (60 ± 32 pmol/ml) at all time points. However, at 24 h, concentration of NT-proBNP was higher (34 ± 18%) in five subjects and lower (17 ± 17%), p = 0.002 between the groups) in five subjects than at baseline. Conclusion In conclusion, there is no consistent increase in circulating NT-proBNP in response to breathing severely hypoxic normobaric gas mixture in healthy humans, a possible reason being that the oxygen flux to cardiac myocytes does not decrease because of increased coronary blood flow. However, the divergent individual responses as well as responses in different cardiac diseases warrant further investigations.
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Affiliation(s)
- Ilkka Heinonen
- Turku PET Centre, University of Turku and Turku University Hospital, PO Box 52, FI-20521 Turku, Finland.
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Nyberg C, Karlsson T, Hillered L, Engström ER. Metabolic pattern of the acute phase of subarachnoid hemorrhage in a novel porcine model: studies with cerebral microdialysis with high temporal resolution. PLoS One 2014; 9:e99904. [PMID: 24940881 PMCID: PMC4062436 DOI: 10.1371/journal.pone.0099904] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Accepted: 05/19/2014] [Indexed: 12/30/2022] Open
Abstract
Background Aneurysmal subarachnoid hemorrhage (SAH) may produce cerebral ischemia and systemic responses including stress. To study immediate cerebral and systemic changes in response to aneurysm rupture, animal models are needed. Objective To study early cerebral energy changes in an animal model. Methods Experimental SAH was induced in 11 pigs by autologous blood injection to the anterior skull base, with simultaneous control of intracranial and cerebral perfusion pressures. Intracerebral microdialysis was used to monitor concentrations of glucose, pyruvate and lactate. Results In nine of the pigs, a pattern of transient ischemia was produced, with a dramatic reduction of cerebral perfusion pressure soon after blood injection, associated with a quick glucose and pyruvate decrease. This was followed by a lactate increase and a delayed pyruvate increase, producing a marked but short elevation of the lactate/pyruvate ratio. Glucose, pyruvate, lactate and lactate/pyruvate ratio thereafter returned toward baseline. The two remaining pigs had a more severe metabolic reaction with glucose and pyruvate rapidly decreasing to undetectable levels while lactate increased and remained elevated, suggesting persisting ischemia. Conclusion The animal model simulates the conditions of SAH not only by deposition of blood in the basal cisterns, but also creating the transient global ischemic impact of aneurysmal SAH. The metabolic cerebral changes suggest immediate transient substrate failure followed by hypermetabolism of glucose upon reperfusion. The model has features that resemble spontaneous bleeding, and is suitable for future research of the early cerebral and systemic responses to SAH that are difficult to study in humans.
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Affiliation(s)
- Christoffer Nyberg
- Department of Neuroscience, section of Neurosurgery, Uppsala University, Uppsala, Sweden
- * E-mail:
| | - Torbjörn Karlsson
- Department of Surgical Sciences, section of Anesthesiology and Intensive care, Uppsala University, Uppsala, Sweden
| | - Lars Hillered
- Department of Neuroscience, section of Neurosurgery, Uppsala University, Uppsala, Sweden
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Iruretagoyena JI, Gonzalez-Tendero A, Garcia-Canadilla P, Amat-Roldan I, Torre I, Nadal A, Crispi F, Gratacos E. Cardiac dysfunction is associated with altered sarcomere ultrastructure in intrauterine growth restriction. Am J Obstet Gynecol 2014; 210:550.e1-7. [PMID: 24440565 DOI: 10.1016/j.ajog.2014.01.023] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Revised: 11/27/2013] [Accepted: 01/15/2014] [Indexed: 12/18/2022]
Abstract
OBJECTIVE The purpose of this study was to assess whether abnormal cardiac function in human fetuses with intrauterine growth restriction (IUGR) is associated with ultrastructural differences in the cardiomyocyte sarcomere. STUDY DESIGN Nine severe early-onset IUGR fetuses and 9 normally grown fetuses (appropriate growth for gestational age) who died in the perinatal period were included prospectively. Cardiac function was assessed by echocardiography and levels of B-type natriuretic peptide and troponin-I. Heart sections were imaged by second harmonic generation microscopy, which allowed unstained visualization of cardiomyocyte's sarcomere length. RESULTS Echocardiographic and biochemical markers showed signs of severe cardiac dysfunction in IUGR fetuses. Second harmonic generation microscopy demonstrated a significantly shorter sarcomere length in IUGR as compared with appropriate growth for gestational age fetuses. CONCLUSION IUGR is associated with changes in the cardiomyocyte contractile machinery in the form of shorter sarcomere length, which could help to explain the cardiac dysfunction previously documented in IUGR.
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Affiliation(s)
- Jesus Igor Iruretagoyena
- Fetal and Perinatal Medicine Research Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Department of Maternal-Fetal Medicine, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
| | - Anna Gonzalez-Tendero
- Fetal and Perinatal Medicine Research Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Patricia Garcia-Canadilla
- Fetal and Perinatal Medicine Research Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Physense, Departament de Tecnologies de la Informació i les Comunicacions (DTIC), Universitat Pompeu Fabra, Barcelona, Spain
| | - Ivan Amat-Roldan
- Fetal and Perinatal Medicine Research Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Iratxe Torre
- Fetal and Perinatal Medicine Research Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Alfons Nadal
- Department of Pathology, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
| | - Fatima Crispi
- Fetal and Perinatal Medicine Research Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Department of Maternal-Fetal Medicine, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Barcelona, Spain
| | - Eduard Gratacos
- Fetal and Perinatal Medicine Research Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Department of Maternal-Fetal Medicine, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Barcelona, Spain.
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Filippatos G, Farmakis D, Parissis J. Novel biomarkers in acute coronary syndromes: new molecules, new concepts, but what about new treatment strategies? J Am Coll Cardiol 2014; 63:1654-6. [PMID: 24530662 DOI: 10.1016/j.jacc.2013.11.055] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Accepted: 11/19/2013] [Indexed: 10/25/2022]
Affiliation(s)
| | - Dimitrios Farmakis
- Department of Cardiology, Athens University Hospital Attikon, Athens, Greece
| | - John Parissis
- Department of Cardiology, Athens University Hospital Attikon, Athens, Greece
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Liebetrau C, Gaede L, Dörr O, Troidl C, Voss S, Hoffmann J, Paszko A, Weber M, Rolf A, Hamm C, Nef H, Möllmann H. Release kinetics of N-terminal pro-B-type natriuretic peptide in a clinical model of acute myocardial infarction. Clin Chim Acta 2014; 429:34-7. [DOI: 10.1016/j.cca.2013.11.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Revised: 11/10/2013] [Accepted: 11/14/2013] [Indexed: 11/28/2022]
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20
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Xu L, Qian W, Li W, Liu J, He H, Li G, Cao Y, Yu Y. The severity of coronary artery disease and reversible ischemia revealed by N-terminal pro-brain natriuretic peptide in patients with unstable angina and preserved left ventricular function. Peptides 2014; 52:143-8. [PMID: 24412773 DOI: 10.1016/j.peptides.2013.12.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2013] [Revised: 12/27/2013] [Accepted: 12/28/2013] [Indexed: 11/19/2022]
Abstract
The association between the levels of N-terminal pro-brain natriuretic peptide (NT-proBNP) and the severity of coronary artery disease (CAD) diagnosed by coronary angiography and other approaches has been investigated. The clinical application of NT-proBNP is restricted by the drawbacks of these techniques now available in screening out patients who need intensive or conservative treatment. Fractional flow reserve (FFR) is superior to coronary angiography and other functional indicators. Accordingly, we designed to investigate the association between NT-proBNP and myocardial ischemia from the perspective of anatomy and physiology in patients with unstable angina and preserved left ventricular function. Plasma samples were collected from 110 patients and NT-proBNP levels were measured by radioimmunoassay. The severity of coronary artery stenosis in patients was measured by coronary angiography and FFR. Stenosis ≥50% in the left main artery or stenosis of 70%, and fractional flow reserve (FFR) ≤0.80 in one or more coronary branches with diameter ≥2mm were defined as "positive", which require revascularization. NT-proBNP levels increased progressively between patients with negative and positive angiographic results (p<0.05), and between FFR-negative and FFR-positive patients (p<0.05). A significant correlation was observed between logNT-proBNP and logGS (GS=Gensini score, p<0.001). NT-proBNP level serves as a predictor of positive results of angiographic stenosis and FFR, with the area under the receiver operating characteristic curve being 0.697 and 0.787, respectively. NT-proBNP levels are correlated with the severity of anatomic coronary obstruction and inducible myocardial ischemia, but NT-proBNP per se is insufficient to identify clinically significant angiographic and physiological stenoses.
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Affiliation(s)
- Luhong Xu
- Institute of Cardiovascular Disease Research, Xuzhou Medical College, 84 West Huaihai Road, Xuzhou, Jiangsu 221002, China
| | - Wenhao Qian
- Department of Cardiology, The Affiliated Hospital of Xuzhou Medical College, 99 West Huaihai Road, Xuzhou, Jiangsu 221002, China.
| | - Wenhua Li
- Department of Cardiology, The Affiliated Hospital of Xuzhou Medical College, 99 West Huaihai Road, Xuzhou, Jiangsu 221002, China
| | - Jiali Liu
- Department of Cardiology, The Affiliated Hospital of Xuzhou Medical College, 99 West Huaihai Road, Xuzhou, Jiangsu 221002, China
| | - Haiyan He
- Institute of Cardiovascular Disease Research, Xuzhou Medical College, 84 West Huaihai Road, Xuzhou, Jiangsu 221002, China
| | - Gonghao Li
- Institute of Cardiovascular Disease Research, Xuzhou Medical College, 84 West Huaihai Road, Xuzhou, Jiangsu 221002, China
| | - Yan Cao
- Institute of Cardiovascular Disease Research, Xuzhou Medical College, 84 West Huaihai Road, Xuzhou, Jiangsu 221002, China
| | - Yaren Yu
- Institute of Cardiovascular Disease Research, Xuzhou Medical College, 84 West Huaihai Road, Xuzhou, Jiangsu 221002, China
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Woods DR, Mellor A, Begley J, Stacey M, O'Hara J, Hawkins A, Yarker J, Foxen S, Smith C, Boos C. Brain natriuretic peptide and NT-proBNP levels reflect pulmonary artery systolic pressure in trekkers at high altitude. Physiol Res 2013; 62:597-603. [PMID: 23869896 DOI: 10.33549/physiolres.932544] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Our objective was to evaluate the utility of the natriuretic peptides BNP (brain natriuretic peptide) and NT-proBNP as markers of pulmonary artery systolic pressure (PASP) in trekkers ascending to high altitude (HA). 20 participants had BNP and NT-proBNP assayed and simultaneous echocardiographic assessment of PASP performed during a trek to 5150 m. PASP increased significantly (p=0.006) with ascent from 24+/-4 to 39+/-11 mm Hg at 5150 m. At 5150 m those with a PASP>/=40 mm Hg (n=8) (versus those with PASP<40 mm Hg) had higher post-exercise BNP (pg/ml): 54.5+/-36 vs. 13.4+/-17 (p=0.012). Their resting BNP at 5150 m was also higher: 57.3+/-43.4 vs. 12.6+/-13 (p=0.017). In those with a pathological (>/=400 pg/ml) rise in NT-proBNP at 5150 m (n=4) PASP was significantly higher: 45.9+/-7.5 vs. 32.2+/-6.2 mm Hg (p=0.015). BNP and NT-proBNP may reflect elevated PASP, a central feature of high altitude pulmonary oedema, at HA.
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Affiliation(s)
- D R Woods
- Royal Victoria Infirmary, Newcastle upon Tyne, UK.
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22
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Validität von Biomarkern zur Abschätzung des perioperativen Myokardischämierisikos. GEFASSCHIRURGIE 2013. [DOI: 10.1007/s00772-013-1175-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Maksimov VF, Korostyshevskaya IM. Morphogenesis and reaction to hypoxia of atrial myoendocrine cells in chick embryos (Gallus gallus). J EVOL BIOCHEM PHYS+ 2013. [DOI: 10.1134/s0022093013020151] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Bonicolini E, Romagnoli S, De Gaudio AR, Petrini F. Biomarkers in organ failure. TRENDS IN ANAESTHESIA AND CRITICAL CARE 2013. [DOI: 10.1016/j.tacc.2013.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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De Jong AM, Maass AH, Oberdorf-Maass SU, De Boer RA, Van Gilst WH, Van Gelder IC. Cyclical stretch induces structural changes in atrial myocytes. J Cell Mol Med 2013; 17:743-53. [PMID: 23617620 PMCID: PMC3823178 DOI: 10.1111/jcmm.12064] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Accepted: 03/19/2013] [Indexed: 01/15/2023] Open
Abstract
Atrial fibrillation (AF) often occurs in the presence of an underlying disease. These underlying diseases cause atrial remodelling, which make the atria more susceptible to AF. Stretch is an important mediator in the remodelling process. The aim of this study was to develop an atrial cell culture model mimicking remodelling due to atrial pressure overload. Neonatal rat atrial cardiomyocytes (NRAM) were cultured and subjected to cyclical stretch on elastic membranes. Stretching with 1 Hz and 15% elongation for 30 min. resulted in increased expression of immediate early genes and phosphorylation of Erk and p38. A 24-hr stretch period resulted in hypertrophy-related changes including increased cell diameter, reinduction of the foetal gene program and cell death. No evidence of apoptosis was observed. Expression of atrial natriuretic peptide, brain natriuretic peptide and growth differentiation factor-15 was increased, and calcineurin signalling was activated. Expression of several potassium channels was decreased, suggesting electrical remodelling. Atrial stretch-induced change in skeletal α-actin expression was inhibited by pravastatin, but not by eplerenone or losartan. Stretch of NRAM results in elevation of stress markers, changes related to hypertrophy and dedifferentiation, electrical remodelling and cell death. This model can contribute to investigating the mechanisms involved in the remodelling process caused by stretch and to the testing of pharmaceutical agents.
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Affiliation(s)
- Anne Margreet De Jong
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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26
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The Role of Natriuretic Peptides as Biomarkers for Guiding the Management of Chronic Heart Failure. Clin Pharmacol Ther 2012. [DOI: 10.1038/clpt.2012.187] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Wang AYM, Wai-Kei Lam C. The Diagnostic Utility of Cardiac Biomarkers in Dialysis Patients. Semin Dial 2012; 25:388-96. [DOI: 10.1111/j.1525-139x.2012.01099.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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29
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Current world literature. Curr Opin Cardiol 2011; 26:576-83. [PMID: 21988836 DOI: 10.1097/hco.0b013e32834d3850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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30
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Calcium and C-reactive protein hot enough to predict the future? J Am Coll Cardiol 2011; 57:1465-7. [PMID: 21435515 DOI: 10.1016/j.jacc.2010.10.044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2010] [Accepted: 10/19/2010] [Indexed: 11/23/2022]
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31
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Woods D, Hooper T, Mellor A, Hodkinson P, Wakeford R, Peaston B, Ball S, Green N. Brain natriuretic peptide and acute hypobaric hypoxia in humans. J Physiol Sci 2011; 61:217-20. [PMID: 21431981 PMCID: PMC10717752 DOI: 10.1007/s12576-011-0141-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2010] [Accepted: 03/03/2011] [Indexed: 11/25/2022]
Abstract
In animal models, the secretion of the cardiac hormone, brain natriuretic peptide (BNP), and its closely related peptide, atrial natriuretic peptide (ANP), are stimulated by acute hypoxia. There is extensive human evidence for a rise in ANP under acute hypoxic conditions but very little evidence regarding the BNP response to acute hypoxia in humans. We therefore subjected seven healthy subjects to an acute hypobaric hypoxic stimulus to examine if BNP secretion increases rapidly. Significant hypoxaemia (mean nadir oxygen saturation 62.3%) was induced but no significant rise in BNP occurred. This suggests that either such acute hypoxaemia is well tolerated by the healthy human heart or it is not a stimulus for BNP secretion.
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Affiliation(s)
- David Woods
- Newcastle and Northumbria NHS Trust, Tyne and Wear, UK.
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32
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Transient elevation of NT-pro-BNP as a predictor for myocardial ischemia. Clin Res Cardiol 2010; 99:857-9. [DOI: 10.1007/s00392-010-0211-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2010] [Accepted: 08/19/2010] [Indexed: 01/08/2023]
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