1
|
Li Y, Bai B, Wang H, Wu H, Deng Y, Shen C, Zhang Q, Shi L. Plasma metabolomic profile in orthostatic intolerance children with high levels of plasma homocysteine. Ital J Pediatr 2024; 50:52. [PMID: 38486257 PMCID: PMC10941598 DOI: 10.1186/s13052-024-01601-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 01/27/2024] [Indexed: 03/17/2024] Open
Abstract
BACKGROUND Orthostatic intolerance, which includes vasovagal syncope and postural orthostatic tachycardia syndrome, is common in children and adolescents. Elevated plasma homocysteine levels might participate in the pathogenesis of orthostatic intolerance. This study was designed to analyze the plasma metabolomic profile in orthostatic intolerance children with high levels of plasma homocysteine. METHODS Plasma samples from 34 orthostatic intolerance children with a plasma homocysteine concentration > 9 µmol/L and 10 healthy children were subjected to ultra-high-pressure liquid chromatography and quadrupole-time-of-flight mass spectrometry analysis. RESULTS A total of 875 metabolites were identified, 105 of which were significantly differential metabolites. Choline, 1-stearoyl-2-linoleoyl-sn-glycero-3-phosphocholine, 1-(1Z-octadecenyl)-2-(4Z,7Z,10Z,13Z,16Z,19Z-docosahexaenoyl)-sn-glycero-3-phosphocholine, histidine, isocitric acid, and DL-glutamic acid and its downstream metabolites were upregulated, whereas 1-palmitoyl-sn-glycero-3-phosphocholine, 1-stearoyl-sn-glycerol 3-phosphocholine, sphingomyelin (d18:1/18:0), betaine aldehyde, hydroxyproline, and gamma-aminobutyric acid were downregulated in the orthostatic intolerance group compared with the control group. All these metabolites were related to choline and glutamate. Heatmap analysis demonstrated a common metabolic pattern of higher choline, 1-stearoyl-2-linoleoyl-sn-glycero-3-phosphocholine, and DL-glutamic acid, and lower sphingomyelin (d18:1/18:0), 1-stearoyl-sn-glycerol 3-phosphocholine, and 1-palmitoyl-sn-glycero-3-phosphocholine in patients with certain notable metabolic changes (the special group) than in the other patients (the common group). The maximum upright heart rate, the change in heart rate from the supine to the upright position, and the rate of change in heart rate from the supine to the upright position of vasovagal syncope patients were significantly higher in the special group than in the common group (P < 0.05). Choline, 1-stearoyl-2-linoleoyl-sn-glycero-3-phosphocholine, and DL-glutamic acid were positively correlated with the rate of change in heart rate from the supine to the upright position in vasovagal syncope patients (P < 0.05). CONCLUSIONS The levels of choline-related metabolites and glutamate-related metabolites changed significantly in orthostatic intolerance children with high levels of plasma homocysteine, and these changes were associated with the severity of illness. These results provided new light on the pathogenesis of orthostatic intolerance.
Collapse
Affiliation(s)
- Yaqi Li
- Department of Cardiology, Children's Hospital, Capital Institute of Pediatrics, No 2 Yabao Road, Beijing, Chaoyang District, 100020, China
| | - Baoling Bai
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, No 2 Yabao Road, Beijing, Chaoyang District, 100020, China
| | - Hui Wang
- Department of Cardiology, Children's Hospital, Capital Institute of Pediatrics, No 2 Yabao Road, Beijing, Chaoyang District, 100020, China
| | - Haojie Wu
- Department of Cardiology, Children's Hospital, Capital Institute of Pediatrics, No 2 Yabao Road, Beijing, Chaoyang District, 100020, China
| | - Yanjun Deng
- Department of Cardiology, Children's Hospital, Capital Institute of Pediatrics, No 2 Yabao Road, Beijing, Chaoyang District, 100020, China
| | - Chen Shen
- Department of Cardiology, Children's Hospital, Capital Institute of Pediatrics, No 2 Yabao Road, Beijing, Chaoyang District, 100020, China
| | - Qin Zhang
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, No 2 Yabao Road, Beijing, Chaoyang District, 100020, China.
| | - Lin Shi
- Department of Cardiology, Children's Hospital, Capital Institute of Pediatrics, No 2 Yabao Road, Beijing, Chaoyang District, 100020, China.
| |
Collapse
|
2
|
Shen Z, Zhang Z, Zhao W. Relationship between plasma homocysteine and chronic kidney disease in US patients with type 2 diabetes mellitus: a cross-sectional study. BMC Nephrol 2022; 23:419. [PMID: 36587192 PMCID: PMC9805683 DOI: 10.1186/s12882-022-03045-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Accepted: 12/16/2022] [Indexed: 01/01/2023] Open
Abstract
AIMS This cross-sectional study aimed to investigate the association between plasma homocysteine (Hcy) and chronic kidney disease (CKD) in US patients with type 2 diabetes mellitus (T2DM). METHODS We used data from the 2003-2006 National Health and Nutritional Examination Surveys (NHANES). CKD was defined as an estimated glomerular filtration rate < 60 ml/min/1.73 m2 and/or urinary albumin-creatine ratio ≥ 3 mg/mmol. RESULTS This study included 1018 patients with T2DM. The mean Hcy value was 10.2 ± 4.6 μmol/L. Among the patients, 417 (40.96%) had hyperhomocysteinemia (HHcy) and 480 (47.15%) had CKD. The Hcy level was higher in patients with CKD than in those without CKD. Compared to patients with normal Hcy, those with HHcy were older and had worse renal function. After full multivariate adjustment, HHcy was positively associated with the risk of CKD in US patients with T2DM (OR, 1.17; 95% CI, 1.11-1.22; P < 0.001), which for women was 1.15 (95% CI, 1.08 ~ 1.23; P < 0.001) and for men was 1.18 (95% CI, 1.1 ~ 1.27; P < 0.001). CONCLUSIONS HHcy was independently associated with CKD in patients with T2DM. Further prospective studies are warranted to investigate the effect of Hcy on CKD in patients with T2DM.
Collapse
Affiliation(s)
- Zilong Shen
- grid.24696.3f0000 0004 0369 153XDepartment of Nephrology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, 23 Art Museum Back Street, Dongcheng District, Beijing, 100010 China
| | - Zhengmei Zhang
- grid.24695.3c0000 0001 1431 9176Department of TCM Internal Medicine, Huguosi TCM Hospital, Affiliated with Beijing University of Chinese Medicine, Beijing, 100700 China
| | - Wenjing Zhao
- grid.24696.3f0000 0004 0369 153XDepartment of Nephrology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, 23 Art Museum Back Street, Dongcheng District, Beijing, 100010 China
| |
Collapse
|
3
|
Xiao W, Ye P, Wang F, Cao R, Bai Y, Wang X. Plasma Homocysteine Is a Predictive Factor for Accelerated Renal Function Decline and Chronic Kidney Disease in a Community-Dwelling Population. Kidney Blood Press Res 2021; 46:541-549. [PMID: 34365457 DOI: 10.1159/000514360] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 01/12/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Whether elevated plasma total homocysteine (tHcy) is a risk factor for the progression of kidney disease in general population has not been well established. The purpose of this study was to investigate the prognostic properties of plasma tHcy for renal function decrement and early chronic kidney disease (CKD) in community-dwelling populations with normal renal function at baseline. METHODS A total of 1,426 participants were enrolled and followed for a median of 4.8 years (interquartile range, 4.5-5.2), and estimated glomerular filtration rate (eGFR) was evaluated. One main outcome was the rapid eGFR decline defined as a decline in eGFR of >3 mL/min per 1.73 m2 per year; the other was the new incidence of CKD. RESULTS At the end of follow-up, the incidence of rapid eGFR decline and new-onset CKD was 20.7 and 5.6%, respectively. In multivariate linear regression analysis, age, central pulse pressure, fasting blood glucose, and concentration of tHcy were independent determinants of the change in eGFR. There was a graded association between tHcy quartiles and eGFR decline. Compared with participants with the lowest quartile of tHcy levels, those with the highest quartile had significantly increased risk for rapid eGFR decline (adjusted odds ratio [aOR] = 1.81; 95% confidence interval [CI]: 1.25-2.94) and new onset of CKD (adjusted hazard ratio = 4.29; 95% CI: 1.42-12.99) after adjusting for various confounders. Similarly, significant associations were also found when baseline tHcy was classified as hyperhomocysteinemia (>15 μmol/L) versus normal tHcy level (≤15 μmol/L). However, there was only association between the change in tHcy levels and new occurrence of CKD but not with rapid eGFR decline (aOR = 0.99, p = 0.613). CONCLUSIONS In this prospective cohort of individuals from community-based population, elevated plasma tHcy emerged as an independent predictor of renal function decline and incident CKD, which might support selection of at-risk individuals.
Collapse
Affiliation(s)
- Wenkai Xiao
- Department of Geriatric Cardiology, Second Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Ping Ye
- Department of Geriatric Cardiology, Second Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Fan Wang
- Department of Geriatric Cardiology, Second Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Ruihua Cao
- Department of Geriatric Cardiology, Second Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Yongyi Bai
- Department of Geriatric Cardiology, Second Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Xiaona Wang
- Department of Geriatric Cardiology, Second Medical Center, Chinese PLA General Hospital, Beijing, China
| |
Collapse
|
4
|
Cai W, Li J, Su J. Effects of renal denervation on the expression profile of circular RNA in the serum of patients with resistant hypertension. Hellenic J Cardiol 2021; 63:66-74. [PMID: 34147676 DOI: 10.1016/j.hjc.2021.06.007] [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: 11/19/2020] [Revised: 05/06/2021] [Accepted: 06/08/2021] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE Renal denervation (RDN) is a new treatment option for resistant hypertension (RH), although it has been shown that reduced sympathetic nerve activity after RDN is the main cause of blood pressure decline. In view of the possible correlation between circRNA and hypertension and the metabolic state of the body after RDN, we investigated the potential role of circRNA in RDN treatment of RH. METHODS Serum samples of patients with RH were collected before and 48 h after RDN. We explored the mechanism underlying RDN with high-throughput integration of circRNA data. RESULTS There were 338 circRNAs that were differentiated before and after RDN; 170 were upregulated and 168 were downregulated (≥1.2-fold, P < 0.05), and the expression of five of them changed significantly (≥1.5-fold, P < 0.05). We used reverse transcription-quantitative polymerase chain reaction to confirm these results in 13 other patients with RH. hsa_circRNA_000367 was upregulated and hsa_circRNA_405119 was downregulated after RDN. We predicted their downstream miRNA-mRNA network and analyzed their putative function via the circRNA-miRNA-mRNA pathway. GO/KEGG analysis showed that their functional annotation may be related to nerve injury and hypertension. We used the Venn Diagram Generator to obtain the intersection of predicted target and sympathetic nerve-related genes (from GeneCards website). CONCLUSION The mechanism underlying RDN may be closely related to upregulated hsa_circRNA_000367 or downregulated hsa_circRNA_405119 and involve regulated multiple pathways and multiple cellular and molecular biological processes. These circRNAs may potentially be used as treatment effect biomarkers in RDN.
Collapse
Affiliation(s)
- Wenqin Cai
- The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Jingting Li
- The First Affiliated Hospital of Fujian Medical University, Fuzhou, China; The Second Hospital of Changle District, Fuzhou, China
| | - Jinzi Su
- The First Affiliated Hospital of Fujian Medical University, Fuzhou, China.
| |
Collapse
|
5
|
Yang Y, Jiao X, Li L, Hu C, Zhang X, Pan L, Yu H, Li J, Chen D, Du J, Qin Y. Increased Circulating Angiopoietin-Like Protein 8 Levels Are Associated with Thoracic Aortic Dissection and Higher Inflammatory Conditions. Cardiovasc Drugs Ther 2020; 34:65-77. [PMID: 32034642 PMCID: PMC7093348 DOI: 10.1007/s10557-019-06924-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Purpose Thoracic aortic dissection (TAD) is characterized by an inflammatory response. Angiopoietin-like protein 8 (ANGPTL8) is a hormone involved in the regulation of lipid metabolism and inflammation. However, the relationship between ANGPTL8 and TAD remains unknown. Methods This case-control study included 78 TAD patients and 72 controls. The aortic diameter was evaluated by computed tomography and used to assess TAD severity. Circulating ANGPTL8 levels were measured by enzyme-linked immunosorbent assay. Associations of ANGPTL8 with TAD were determined by multivariate logistic regression. Results Serum ANGPTL8 levels were significantly higher in TAD patients compared with controls (562.50 ± 20.84 vs. 419.70 ± 22.65 pg/mL, respectively; P < 0.001). After adjusting for confounding factors, circulating ANGPTL8 levels were an independent risk factor for TAD (odds ratio = 1.587/100 pg ANGPTL8, 95% confidence interval [CI] = 1.121–2.247, P < 0.001) and positively associated with diameter (β = 1.081/100 pg ANGPTL8, 95% CI = 0.075–2.086, P = 0.035) and high-sensitivity C-reactive protein (hs-CRP) (β = 0.845/100 pg ANGPTL8, 95% CI = 0.020–1.480, P = 0.009). The area under the curve (AUC) on receiver operating characteristic (ROC) analysis of the combination of ANGPTL8, hs-CRP, and D-dimer was 0.927, and the specificity and sensitivity were 98.46% and 79.49%, respectively. ANGPTL8 was significantly increased in TAD tissue compared with controls. In vitro, ANGPTL8 was increased in angiotensin II (AngII)-treated macrophages and vascular smooth muscle cells (VSMCs), while ANGPTL8 siRNA-mediated knockdown decreased inflammatory factors in AngII-treated macrophages and decreased apoptosis in AngII-treated VSMCs. Conclusion ANGPTL8 is associated with TAD occurrence and development, which may involve pro-inflammatory effects on macrophages. ANGPTL8 combined with D-dimer and hs-CRP might be a useful clinical predictor of TAD. Trial Registration ChiCTR-COC-17010792 http://www.chictr.org.cn/showproj.aspx?proj=18288 Electronic supplementary material The online version of this article (10.1007/s10557-019-06924-7) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Yunyun Yang
- Key Laboratory of Remodeling-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, 2 Anzhen Road, Chaoyang District, Beijing, 100029, China.,Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, 100029, China
| | - Xiaolu Jiao
- Key Laboratory of Remodeling-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, 2 Anzhen Road, Chaoyang District, Beijing, 100029, China.,Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, 100029, China
| | - Linyi Li
- Key Laboratory of Remodeling-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, 2 Anzhen Road, Chaoyang District, Beijing, 100029, China.,Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, 100029, China
| | - Chaowei Hu
- Key Laboratory of Remodeling-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, 2 Anzhen Road, Chaoyang District, Beijing, 100029, China.,Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, 100029, China
| | - Xiaoping Zhang
- Key Laboratory of Remodeling-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, 2 Anzhen Road, Chaoyang District, Beijing, 100029, China.,Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, 100029, China
| | - Lili Pan
- Key Laboratory of Remodeling-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, 2 Anzhen Road, Chaoyang District, Beijing, 100029, China
| | - Huahui Yu
- Key Laboratory of Remodeling-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, 2 Anzhen Road, Chaoyang District, Beijing, 100029, China.,Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, 100029, China
| | - Juan Li
- Key Laboratory of Remodeling-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, 2 Anzhen Road, Chaoyang District, Beijing, 100029, China.,Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, 100029, China
| | - Dong Chen
- Department of Pathology, Beijing An Zhen Hospital, Capital Medical University, Beijing, 100029, China
| | - Jie Du
- Key Laboratory of Remodeling-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, 2 Anzhen Road, Chaoyang District, Beijing, 100029, China
| | - Yanwen Qin
- Key Laboratory of Remodeling-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, 2 Anzhen Road, Chaoyang District, Beijing, 100029, China. .,Key Laboratory of Upper Airway Dysfunction-related Cardiovascular Diseases, Beijing An Zhen Hospital, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing, 100029, China.
| |
Collapse
|
6
|
Plasma Homocysteine and Autonomic Nervous Dysfunction: Association and Clinical Relevance in OSAS. DISEASE MARKERS 2020; 2020:4378505. [PMID: 32695242 PMCID: PMC7368224 DOI: 10.1155/2020/4378505] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 02/09/2020] [Accepted: 06/11/2020] [Indexed: 12/26/2022]
Abstract
Objective Elevated plasma homocysteine (Hcy) is an independent risk factor for cardiovascular diseases, but the precise mechanism of Hcy in cardiovascular disease remains elusive. This study is aimed at evaluating the association between Hcy levels and autonomic nervous system and at investigating their clinical relevance in obstructive sleep apnea syndrome (OSAS). Methods A total of 191 subjects with OSAS were enrolled for this cross-sectional study. Heart rate variability (HRV) represents the status of the autonomic nervous system and is a well-known index that allows studying the autonomic modulation. HRV and polysomnography parameters were collected based on Holter monitors and polysomnography system. The software computed all the basic HRV parameters including SDANN, SDNN and pNN50. Correlation analyses between Hcy and HRV parameters and echocardiographic parameters were performed. Results Compared with the mild-moderate OSAS group, the prevalence of male and smoking and Hcy levels were considerably higher in the severe OSAS group (P = 0.01, P = 0.02, and P = 0.01, respectively). Also, there were significant linear relationships between Hcy quartiles with the proportion of severe OSAS (P = 0.01 for the trend). Interesting, there is a negative linear correlation between SDANN and Hcy quartiles (P = 0.02 for the trend). Spearman's correlation analysis showed a significant negative correlation between SDANN and Hcy levels (r = -0.17, P = 0.02). Interestingly, the relationship of it remains significant after adjustment for clinical covariates (r = -0.15, P = 0.04). However, echocardiographic parameters were not significantly correlated with Hcy or HRV parameters (all P > 0.05). Conclusions Elevated plasma Hcy level is linearly correlated with cardiac autonomic nervous function disorders in patients with OSAS.
Collapse
|
7
|
Korkmaz HI, Hahn NE, Jansen KM, Musters R, van Bezu J, van Wieringen WN, van Zuijlen P, Ulrich M, Niessen H, Krijnen P. Homocysteine-induced inverse expression of tissue factor and DPP4 in endothelial cells is related to NADPH oxidase activity. Physiol Int 2019; 106:29-38. [PMID: 30888218 DOI: 10.1556/2060.106.2019.05] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
PURPOSE We previously found that homocysteine (Hcy)-induced apoptosis in endothelial cells coincided with increased NADPH oxidase (NOX) activity. In addition, in ischemic endothelial cells present in the heart, we showed that loss of serine protease dipeptidyl peptidase IV (DPP4) expression was correlated with induction of tissue factor (TF) expression. Since Hcy can initiate thrombosis through the induction of TF expression, in this study, we evaluated whether the inverse relation of TF and DPP4 is also Hcy-dependent and whether NOX-mediated reactive oxygen species (ROS) is playing a role herein. METHODS Human umbilical vein endothelial cells (HUVECs) were incubated with 2.5 mM Hcy for 3 and 6 h. The effects of Hcy on DPP4 and TF expression and NOX2/p47phox-mediated nitrotyrosine (ROS) production were studied using digital-imaging microscopy. RESULTS In HUVECs, high levels of Hcy showed a significant increase of TF expression and a concomitant loss of DPP4 expression after 6 h. In addition, NOX subunits NOX2 and p47phox were also significantly increased after 6 h of Hcy incubation and coincided with nitrotyrosine (ROS) expression. Interestingly, inhibition of NOX-mediated nitrotyrosine (ROS) with the use of apocynin not only reduced these effects, but also counteracted the effects of Hcy on TF and DPP4 expression. CONCLUSION These results indicate that the inverse relation of TF and DPP4 in endothelial cells is also Hcy-dependent and related to NOX activity.
Collapse
Affiliation(s)
- H I Korkmaz
- 1 Department of Pathology, Amsterdam UMC, VUmc , Amsterdam, The Netherlands.,2 Amsterdam Cardiovascular Sciences (ACS), Amsterdam UMC, VUmc , Amsterdam, The Netherlands
| | - N E Hahn
- 1 Department of Pathology, Amsterdam UMC, VUmc , Amsterdam, The Netherlands.,2 Amsterdam Cardiovascular Sciences (ACS), Amsterdam UMC, VUmc , Amsterdam, The Netherlands
| | - K M Jansen
- 1 Department of Pathology, Amsterdam UMC, VUmc , Amsterdam, The Netherlands
| | - Rjp Musters
- 3 Department of Physiology, Amsterdam UMC, VUmc , Amsterdam, The Netherlands
| | - J van Bezu
- 3 Department of Physiology, Amsterdam UMC, VUmc , Amsterdam, The Netherlands
| | - W N van Wieringen
- 4 Department of Epidemiology and Biostatistics, Amsterdam UMC, VUmc , Amsterdam, The Netherlands.,5 Department of Mathematics, Amsterdam UMC, VUmc , Amsterdam, The Netherlands
| | - Ppm van Zuijlen
- 6 Department of Plastic, Reconstructive and Hand Surgery, MOVE Research Institute, Amsterdam UMC, VUmc , Amsterdam, The Netherlands.,7 Department of Plastic and Reconstructive Surgery, Burn Center, Red Cross Hospital , Beverwijk, The Netherlands.,8 Preclinical Research, Association of Dutch Burn Centres (ADBC) , Beverwijk, The Netherlands
| | - Mmw Ulrich
- 1 Department of Pathology, Amsterdam UMC, VUmc , Amsterdam, The Netherlands.,8 Preclinical Research, Association of Dutch Burn Centres (ADBC) , Beverwijk, The Netherlands.,9 Department of Molecular Cell Biology and Immunology, Amsterdam UMC, VUmc , Amsterdam, The Netherlands
| | - Hwm Niessen
- 1 Department of Pathology, Amsterdam UMC, VUmc , Amsterdam, The Netherlands.,2 Amsterdam Cardiovascular Sciences (ACS), Amsterdam UMC, VUmc , Amsterdam, The Netherlands.,10 Department of Cardiac Surgery, Amsterdam UMC, VUmc , Amsterdam, The Netherlands
| | - Paj Krijnen
- 1 Department of Pathology, Amsterdam UMC, VUmc , Amsterdam, The Netherlands.,2 Amsterdam Cardiovascular Sciences (ACS), Amsterdam UMC, VUmc , Amsterdam, The Netherlands
| |
Collapse
|
8
|
Hu L, Zhang S, Wen H, Liu T, Cai J, Du D, Zhu D, Chen F, Xia C. Melatonin decreases M1 polarization via attenuating mitochondrial oxidative damage depending on UCP2 pathway in prorenin-treated microglia. PLoS One 2019; 14:e0212138. [PMID: 30742657 PMCID: PMC6370243 DOI: 10.1371/journal.pone.0212138] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 01/28/2019] [Indexed: 12/24/2022] Open
Abstract
Accumulating evidence suggests that neuroinflammation and oxidative stress in cardiovascular center contribute to the pathological processes underlying hypertension. Microglia activation triggers the inflammation and oxidative stress. Melatonin is a documented potent anti-inflammatory regent and antioxidant, the underlying roles of melatonin in regulating microglia activation via mitochondria remain unclear. In present study, we investigated the protective role of melatonin in decreasing M1 phenotype switching via attenuating mitochondrial oxidative damage in dependence on uncoupling protein 2 (UCP2) pathway in microglia. Prorenin (20 nmol/L; 24 hr) was used to induce inflammation in cultured microglia. Mitochondrial morphology was detected by transmission electron microscope. The reactive oxygen species (ROS) production by using DCFH-DA fluorescence imaging and mitochondrial membrane potential (MMP, ΔΨm) was evaluated by JC-1 staining. The indicator of the redox status as the ratio of the amount of total NADP+ to total NADPH, and the expression of 6 subunits of NADPH oxidase is measured. The pro-inflammatory cytokines releasing was measured by qPCR. UCP2 and activated AMPKα (p-AMPKα) expression were examined by immunoblot. Melatonin (100 μM) markedly alleviated the M1 microglia phenotype shifting and abnormal mitochondria morphology. Melatonin attenuated prorenin-induced ΔΨm increasing and ROS overproduction. Melatonin decreased the redox ratio (NADP+/NADPH) and the p47phox and gp91phox subunits of NADPH oxidase expression in prorenin-treated microglia. These effects were reversed in the presence of UCP2 siRNA. Our results suggested that the protective effect of melatonin against prorenin-induced M1 phenotype switching via attenuating mitochondrial oxidative damage depending on UCP2 upregulation in prorenin-treated microglia.
Collapse
Affiliation(s)
- Li Hu
- Laboratory of Neuropharmacology and Neurotoxicology, Shanghai Key Laboratory of Bio-Energy Crops, College of Life Science, Shanghai University, Shanghai, P.R. China
| | - Shutian Zhang
- Department of Physiology and Pathophysiology, Basic Medicine College, Fudan University, Shanghai, P.R. China
| | - Haoyu Wen
- Department of Physiology and Pathophysiology, Basic Medicine College, Fudan University, Shanghai, P.R. China
| | - Tianfeng Liu
- Laboratory of Neuropharmacology and Neurotoxicology, Shanghai Key Laboratory of Bio-Energy Crops, College of Life Science, Shanghai University, Shanghai, P.R. China
| | - Jian Cai
- Department of neurology, Renji Hospital, Shanghai Jiaotong University, Shanghai, P.R. China
| | - Dongshu Du
- Laboratory of Neuropharmacology and Neurotoxicology, Shanghai Key Laboratory of Bio-Energy Crops, College of Life Science, Shanghai University, Shanghai, P.R. China
| | - Danian Zhu
- Department of Physiology and Pathophysiology, Basic Medicine College, Fudan University, Shanghai, P.R. China
| | - Fuxue Chen
- Laboratory of Neuropharmacology and Neurotoxicology, Shanghai Key Laboratory of Bio-Energy Crops, College of Life Science, Shanghai University, Shanghai, P.R. China
- * E-mail: (FXC); (CMX)
| | - Chunmei Xia
- Department of Physiology and Pathophysiology, Basic Medicine College, Fudan University, Shanghai, P.R. China
- * E-mail: (FXC); (CMX)
| |
Collapse
|