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Ndzie Noah ML, Mprah R, Wowui PI, Adekunle AO, Adu-Amankwaah J, Tan R, Gong Z, Li T, Fu L, Machuki JO, Zhang S, Sun H. CD73/adenosine axis exerts cardioprotection against hypobaric hypoxia-induced metabolic shift and myocarditis in a sex-dependent manner. Cell Commun Signal 2024; 22:166. [PMID: 38454449 PMCID: PMC10918954 DOI: 10.1186/s12964-024-01535-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Accepted: 02/17/2024] [Indexed: 03/09/2024] Open
Abstract
BACKGROUND Clinical and experimental studies have shown that the myocardial inflammatory response during pathological events varies between males and females. However, the cellular and molecular mechanisms of these sex differences remain elusive. CD73/adenosine axis has been linked to anti-inflammatory responses, but its sex-specific cardioprotective role is unclear. The present study aimed to investigate whether the CD73/adenosine axis elicits sex-dependent cardioprotection during metabolic changes and myocarditis induced by hypobaric hypoxia. METHODS For 7 days, male and female mice received daily injections of the CD73 inhibitor adenosine 5'- (α, β-methylene) diphosphate (APCP) 10 mg/kg/day while they were kept under normobaric normoxic and hypobaric hypoxic conditions. We evaluated the effects of hypobaric hypoxia on the CD73/adenosine axis, myocardial hypertrophy, and cardiac electrical activity and function. In addition, metabolic homeostasis and immunoregulation were investigated to clarify the sex-dependent cardioprotection of the CD73/adenosine axis. RESULTS Hypobaric hypoxia-induced cardiac dysfunction and adverse remodeling were more pronounced in male mice. Also, male mice had hyperactivity of the CD73/adenosine axis, which aggravated myocarditis and metabolic shift compared to female mice. In addition, CD73 inhibition triggered prostatic acid phosphatase ectonucleotidase enzymatic activity to sustain adenosine overproduction in male mice but not in female mice. Moreover, dual inhibition prostatic acid phosphatase and CD73 enzymatic activities in male mice moderated adenosine content, alleviating glycolytic shift and proinflammatory response. CONCLUSION The CD73/adenosine axis confers a sex-dependent cardioprotection. In addition, extracellular adenosine production in the hearts of male mice is influenced by prostatic acid phosphatase and tissue nonspecific alkaline phosphatase.
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Affiliation(s)
- Marie Louise Ndzie Noah
- Department of Physiology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, China
| | - Richard Mprah
- Department of Physiology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, China
| | - Prosperl Ivette Wowui
- Department of Physiology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, China
| | | | - Joseph Adu-Amankwaah
- Department of Physiology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, China
| | - Rubin Tan
- Department of Physiology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, China
| | - Zheng Gong
- Department of Physiology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, China
| | - Tao Li
- Department of Physiology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, China
| | - Lu Fu
- Department of Physiology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, China
| | | | - Shijie Zhang
- Department of Physiology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, China
| | - Hong Sun
- Department of Physiology, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, China.
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Guo X, Nie H, Chen Q, Chen S, Deng N, Li R, Ding X, Hu S, Wang A. The role of plasma N-terminal brain natriuretic pro-peptide in diagnosing elderly patients with acute exacerbation of COPD concurrent with left heart failure. Int J Chron Obstruct Pulmon Dis 2018; 13:2931-2940. [PMID: 30275691 PMCID: PMC6157578 DOI: 10.2147/copd.s164671] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Introduction Acute exacerbation of COPD (AECOPD) and left heart failure (LHF) commonly exist together in clinical practice. However, the identification of AECOPD concurrent with LHF is currently challenging. Our study aimed to investigate the role of plasma N-terminal brain natriuretic pro-peptide (NT-proBNP) in diagnosing elderly patients with AECOPD associated with LHF. Methods and results LHF was diagnosed in patients with AECOPD according to echocardiographic criteria, and the levels of NT-proBNP in plasma were measured by quantitative electrochemiluminescence assay. Among the 655 patients with AECOPD, 158 (24.1%) had comorbid LHF, whether systolic (n=108, 68.4%) or diastolic (n=50, 31.6%). The plasma concentrations of NT-proBNP in elderly patients with AECOPD associated with LHF were markedly elevated, compared with those with only AECOPD (4,542.5 and 763.0 ng/L, respectively, P<0.01). The receiver operating characteristic curve indicated a diagnostic cutoff value of 1,677.5 ng/L of NT-proBNP in plasma for ascertaining the presence of LHF in AECOPD, with a sensitivity of 87.9%, a specificity of 88.5%, and an accuracy of 88.4%. Conclusion The plasma level of NT-proBNP may be a useful indicator in diagnosing AECOPD associated with LHF.
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Affiliation(s)
- Xuxue Guo
- Department of Respiratory Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
| | - Hanxiang Nie
- Department of Respiratory Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
| | - Qianhui Chen
- Department of Respiratory Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
| | - Shuo Chen
- Department of Respiratory Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
| | - Nishan Deng
- Department of Respiratory Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
| | - Ruiyun Li
- Department of Respiratory Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
| | - Xuhong Ding
- Department of Respiratory Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
| | - Suping Hu
- Department of Respiratory Medicine, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China
| | - Ailing Wang
- Nursing Department, Wuhan University School of Health Sciences, Wuhan 430071, Hubei Province, China,
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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: 1.1] [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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Hu W, Shi L, Zhou PH, Zhang XB. Plasma concentrations of adrenomedullin and atrial and brain natriuretic peptides in patients with adrenal pheochromocytoma. Oncol Lett 2015; 10:3163-3170. [PMID: 26722306 DOI: 10.3892/ol.2015.3660] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2014] [Accepted: 08/05/2015] [Indexed: 11/05/2022] Open
Abstract
The present study aimed to evaluate any changes in the plasma concentrations of adrenomedullin (ADM), atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP) in patients with adrenal pheochromocytoma (PC). The plasma concentrations of the three peptides were measured in 45 healthy control individuals and 90 untreated patients with PC, who consisted of 20 normotensive patients, 30 borderline hypertensive patients and 40 hypertensive patients. After 4 weeks of effective antihypertensive therapy for hypertensive PC patients, the concentrations of ADM, ANP and BNP were measured again, and laparoscopic adrenalectomy was then performed for all PC patients with values that were measured 2 weeks later. The plasma concentrations of the three peptides were significantly increased in the borderline hypertensive and hypertensive patients compared with the concentrations in control individuals and normotensive patients. In addition, there were significant differences between the levels of ADM, ANP and BNP in the borderline and hypertensive groups. The plasma ADM concentration was not associated with the blood urea nitrogen levels, serum creatinine levels or glomerular filtration rate, but was correlated with the serum epinephrine, serum norepinephrine and urine vanillylmandelic acid levels. In addition, the ADM concentration was associated with the systolic blood pressure, diastolic blood pressure, left ventricular ejection fraction, left ventricular mass index and plasma concentrations of ANP and BNP in the hypertensive patients with PC. After 4 weeks of antihypertensive treatment, the values of the three peptides in the hypertensive patients with PC were not significantly changed. As expected, the values in borderline and hypertensive groups were significantly decreased 2 weeks subsequent to surgery, whereas there were no significant changes in the normotensive group. ADM may participate, along with ANP and BNP, in the mechanisms that counteract further elevation of blood pressure in patients with PC, and there may be an ADM/catecholamine local regulatory mechanism that is important for the control of adrenal medulla functions.
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Affiliation(s)
- Wei Hu
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Lei Shi
- Department of Oncology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Pang-Hu Zhou
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Xiao-Bin Zhang
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
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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: 1.2] [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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Role of N-terminal pro B-type natriuretic peptide in acute exacerbation of chronic obstructive pulmonary disease. EGYPTIAN JOURNAL OF CHEST DISEASES AND TUBERCULOSIS 2014. [DOI: 10.1016/j.ejcdt.2013.10.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Zurek M, Maeder MT, Brutsche MH, Christ A, Bosshard P, Ziller R, Rickli H, Kaye DM, Mueller C. Does hypoxemia have an impact on the cardiac release and circulating concentrations of natriuretic peptides in humans in vivo? Int J Cardiol 2012. [PMID: 23182001 DOI: 10.1016/j.ijcard.2012.11.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Rytkönen KT, Renshaw GMC, Vainio PP, Ashton KJ, Williams-Pritchard G, Leder EH, Nikinmaa M. Transcriptional responses to hypoxia are enhanced by recurrent hypoxia (hypoxic preconditioning) in the epaulette shark. Physiol Genomics 2012; 44:1090-7. [PMID: 22991209 DOI: 10.1152/physiolgenomics.00081.2012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
All animals require molecular oxygen for aerobic energy production, and oxygen availability has played a particularly important role in the evolution of aquatic animals. This study investigates how previous exposure to hypoxia (preconditioning) primes protective transcriptional responses in a hypoxia-tolerant vertebrate species, the epaulette shark (Hemiscyllium ocellatum). The epaulette shark is a basal cartilaginous fish that in its natural environment experiences cyclic hypoxic periods. We evaluated whether the transcription of a set of crucial prosurvival genes is affected differently by a single short-term (2 h) exposure to sublethal hypoxia compared with eight such successive hypoxia exposures (hypoxia preconditioning). We discovered that hypoxia preconditioning amplifies transcriptional responses compared with animals that experienced a single hypoxic bout. In the heart we observed that hypoxic preconditioning, but not a single hypoxic exposure, resulted in higher transcript levels of genes that regulate oxygen and energy homeostasis, including those of hypoxia-inducible factor-1 alpha, adenosine signaling pathway components, and genes affecting circulation [prostaglandin synthetase 2 (cox-2) and natriuretic peptide C]. This suggests that in a single short-term hypoxic bout, the responses to low oxygen are regulated at the level of pre-existing proteins or translational and posttranslational machinery, whereas transcriptional responses are induced in experiments that parallel the natural environmental cycles of oxygen availability. These findings have general implications for understanding how vertebrates regulate protective gene expression upon physiological stress.
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Affiliation(s)
- Kalle T Rytkönen
- Division of Genetics and Physiology, Department of Biology, University of Turku, Turku, Finland.
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The elusive mechanisms of B-type natriuretic peptides rise after ventricular fibrillation. Int J Cardiol 2012; 156:247-8. [DOI: 10.1016/j.ijcard.2012.01.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2012] [Accepted: 01/22/2012] [Indexed: 11/21/2022]
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