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Xie F, Yu Z, Xiong Y, Wu Z, Wu Y. Systemic immune-inflammation index and in-stent restenosis in patients with acute coronary syndrome: a single-center retrospective study. Eur J Med Res 2024; 29:145. [PMID: 38409069 PMCID: PMC10895800 DOI: 10.1186/s40001-024-01736-4] [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: 09/07/2023] [Accepted: 02/20/2024] [Indexed: 02/28/2024] Open
Abstract
BACKGROUND In-stent restenosis (ISR) has been shown to be correlated with inflammation. This study aimed to examine the relationship between systemic immune-inflammation index (SII, an innovative inflammatory biomarker) and ISR in acute coronary syndrome (ACS) patients after drug-eluting stent (DES) implantation. METHODS Subjects who were diagnosed with ACS and underwent DES implantation were enrolled retrospectively. All individuals underwent follow-up coronary angiography at six to forty-eight months after percutaneous coronary intervention (PCI). SII was defined as [(platelet count × neutrophil count)/lymphocyte count], and Ln-transformed SII (LnSII) was carried out for our analysis. Multivariate logistic regression analysis was employed to assess the association between LnSII and DES-ISR. RESULTS During a median follow-up period of 12 (11, 20) months, 523 ACS patients who underwent follow-up angiography were included. The incidence of DES-ISR was 11.28%, and patients in the higher LnSII tertile trended to show higher likelihoods of ISR (5.7% vs. 12.1% vs. 16.0%; P = 0.009). Moreover, each unit of increased LnSII was correlated with a 69% increased risk of DES-ISR (OR = 1.69, 95% CI 1.04-2.75). After final adjusting for confounders, a significant higher risk of DES-ISR (OR = 2.52, 95% CI 1.23-5.17) was found in participants in tertile 3 (≥ 6.7), compared with those in tertiles 1-2 (< 6.7). Subgroup analysis showed no significant dependence on age, gender, body mass index, current smoking, hypertension, and diabetes for this positive association (all P for interaction > 0.05). CONCLUSION High levels of SII were independently associated with an increased risk of DES-ISR in ACS patients who underwent PCI. Further prospective cohort studies are still needed to validate our findings.
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Affiliation(s)
- Feng Xie
- Department of Cardiology, the Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, No.1 Minde Road, Nanchang, Jiangxi, 330006, People's Republic of China
| | - Zuozhong Yu
- Department of Cardiology, the Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, No.1 Minde Road, Nanchang, Jiangxi, 330006, People's Republic of China
| | - Yurong Xiong
- Department of Cardiology, the Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, No.1 Minde Road, Nanchang, Jiangxi, 330006, People's Republic of China
| | - Zhijian Wu
- Department of Cardiology, the Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, No.1 Minde Road, Nanchang, Jiangxi, 330006, People's Republic of China
| | - Yanqing Wu
- Department of Cardiology, the Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, No.1 Minde Road, Nanchang, Jiangxi, 330006, People's Republic of China.
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Toll-Like Receptors/TNF-α Pathway Crosstalk and Impact on Different Sites of Recurrent Myocardial Infarction in Elderly Patients. BIOMED RESEARCH INTERNATIONAL 2022; 2022:1280350. [PMID: 35425840 PMCID: PMC9005286 DOI: 10.1155/2022/1280350] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 11/17/2021] [Accepted: 11/24/2021] [Indexed: 12/12/2022]
Abstract
Background Recurrent myocardial infarction is associated with increased mortality. Risk and predictive factors of recurrent myocardial infarction in elderly patients after coronary stenting are not well known. This research sought to investigate the effects of proinflammatory cytokines and toll-like receptor on recurrent myocardial infarction after coronary stenting in elderly patients. Methods We measured the levels of toll-like receptor 2 (TLR2), toll-like receptor 3 (TLR3), toll-like receptor 4 (TLR4), tumor necrosis factor-α (TNF-α), soluble tumor necrosis factor-α receptor-1 (sTNFR-1), soluble tumor necrosis factor-α receptor-2 (sTNFR-2), endothelial progenitor cells (EPCs), and vascular endothelial growth factor (VEGF) in elderly patients with recurrent myocardial infarction and assessed the changes of proinflammatory cytokines and toll-like receptors in elderly patients with recurrent myocardial infarction after coronary stenting. Results Levels of TLR2, TLR3, TLR4, TNF-α, sTNFR-1, and sTNFR-2 were remarkably increased (P < 0.001), and EPCs and VEGF were remarkably lowered (P < 0.001) in the elderly patients with recurrent myocardial infarction after coronary stent implantation. Increased expressions of proinflammatory cytokines and toll-like receptors induced recurrent myocardial infarction after coronary stenting. Elevated expressions of proinflammatory cytokines and toll-like receptors may be used to identify elderly patients who have an increased risk of developing recurrent myocardial infarction after coronary stenting. Conclusion The increase levels of proinflammatory cytokines and toll-like receptors were associated with recurrent myocardial infarction after coronary stenting. Increased expressions of proinflammatory cytokines and toll-like receptors may be clinically useful biomarkers for predicting recurrent myocardial infarction in the elderly patients after coronary stent implantation.
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Zhang R, Tao Z, Gong J, Ji Z, Yang M, Ma G, Li Y. Albumin to Globulin Ratio was associated with in-stent restenosis and revascularization events after percutaneous coronary intervention. Clin Transl Sci 2022; 15:1187-1195. [PMID: 35195938 PMCID: PMC9099125 DOI: 10.1111/cts.13236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 01/09/2023] Open
Abstract
In-stent restenosis is a common complication after percutaneous coronary intervention (PCI) for coronary heart disease requiring revascularization. We performed a retrospective analysis to assess the value of inflammatory biomarker Albumin to Globulin Ratio (AGR) in clinical prognosis of percutaneous coronary intervention (PCI). In total, 992 coronary heart disease (CHD) patients who underwent the first drug-eluting stent implantation and reexamination angiography in our hospital were enrolled in this study. Albumin to Globulin Ratio was measured. At mean follow-up of 11.2 ± 4 months, the in-stent restenosis (ISR) and revascularization events (including target lesion revascularization, target vessel revascularization, and revascularization of de novo lesions) occurred in 127 and 284 patients respectively. Compared with the non-ISR or non-event group, AGR was significantly lower in the ISR group and events group. Beyond that, albumin was significantly lower, while urea nitrogen, glucose and gensini score, as well as the proportions of a history of diabetes and peripheral vascular diseases, were significantly higher in the ISR group and events group. Age, heart rate, white blood cell, neutrophils, lymphocyte, monocyte and incidence of ischemic stroke were significantly higher in the events group. Multivariate cox regression analysis showed that AGR was independently associated with ISR (P = 0.032) and events (P = 0.024). Besides, Kaplan-Meier analysis indicated that the higher quartile of AGR had a lower rate of ISR (P = 0.038) and events (p ≤ 0.001). Finally, the receiver operating characteristic (ROC) curve for AGR in diagnosing ISR and events indicated that the area under the curve (AUC) were 0.56 and 0.57 respectively. Therefore, AGR is one of the most important factors that independently associate with the ISR and revascularization events after PCI.
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Affiliation(s)
- Rui Zhang
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Zaixiao Tao
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Jing Gong
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Zhenjun Ji
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Mingming Yang
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Genshan Ma
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Yongjun Li
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China
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Zhou J, Chai D, Dai Y, Wang A, Yan T, Lu S. Predictive Value Analysis of in-Stent Restenosis Within Three Years in Older Acute Coronary Syndrome Patients: A Two-Center Retrospective Study. Clin Appl Thromb Hemost 2022; 28:10760296221107888. [PMID: 35706375 PMCID: PMC9208031 DOI: 10.1177/10760296221107888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
We aimed to investigate prognostic factors of in-stent restenosis (ISR) within 3 years in older acute coronary syndrome (ACS) patients after drug-eluting stent (DES) implantation and establish a clinical model for predicting ISR. We retrospectively collected 215 older ACS patients who followed coronary angiography (CAG) after DES implantation, divided into ISR group and non in-stent restenosis (non-ISR) group according to the results of reviewed CAG. Logistic regression analysis was performed to screen independent predictors related to ISR and build the clinical predictive model, which clinical application was assessed by decision curve analysis (DCA) and clinical impact curve (CIC). Kaplan-Meier survival curves for ISR by independent predictors. In multivariate logistic regression analysis showed that the red cell distribution width (RDW) was higher in ISR group compared with non-ISR (odds ratio (OR) = 1.54, 95% confidence interval (CI): 1.14–2.08, p < 0.01). Instead, a negative correlation was observed between minimum stent diameter and ISR (OR = 0.28, 95%CI:0.09-0.86, p = 0.03). A novel nomogram composed of these significant features presented a concordance index (C-index) of 0.710, DCA and CIC suggested that the predictive nomogram had clinical utility. Schoenfeld residuals showed the model RDW ≥ 12.6% with minimum stent diameter <3 mm was consistent with the proportional risk assumption. The Kaplan-Meier estimate for ISR showed statistical significance. Higher levels of RDW and lower minimum stent diameter were associated with incidence of ISR within 3 years in older ACS patients after DES implantation.
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Affiliation(s)
- Jing Zhou
- Department of Cardiology, 442535The First People's Hospital of Taicang, The Affiliated Taicang Hospital of Soochow University, Taicang, China
| | - Dayang Chai
- Department of Cardiology, 442535The First People's Hospital of Taicang, The Affiliated Taicang Hospital of Soochow University, Taicang, China
| | - Yuxiang Dai
- Department of Cardiology, 92323Zhongshan Hospital Affiliated of Fudan University, Shanghai, China
| | - Aichao Wang
- Department of Cardiology, 442535The First People's Hospital of Taicang, The Affiliated Taicang Hospital of Soochow University, Taicang, China
| | - Ting Yan
- Department of Dermatology, 442535The First People's Hospital of Taicang, The Affiliated Taicang Hospital of Soochow University, Taicang, China
| | - Shu Lu
- Department of Cardiology, 442535The First People's Hospital of Taicang, The Affiliated Taicang Hospital of Soochow University, Taicang, China
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Li Y, Guo J, Yu H, Liu X, Zhou J, Chu X, Xu Q, Sun T, Peng L, Yang X, Tang X. Valsartan Prevented Neointimal Hyperplasia and Inhibited SRSF1 Expression and the TLR4-iNOS-ERK-AT1 Receptor Pathway in the Balloon-injured Rat Aorta. Physiol Res 2021; 70:533-542. [PMID: 34062069 PMCID: PMC8820538 DOI: 10.33549/physiolres.934579] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 04/22/2021] [Indexed: 01/04/2023] Open
Abstract
Valsartan has the potential to attenuate neointimal hyperplasia and to suppress the inflammatory response. This study aimed to evaluate the role of valsartan in neointimal hyperplasia and the toll-like receptor 4 (TLR4)-nitric oxide synthase (NOS) pathway in the balloon-injured rat aorta.Forty-eight Wistar rats were randomly allocated to three groups: sham control (control), balloon-injured group (surgery), and balloon-injured+valsartan-treated group (valsartan). Rats were killed at 14 and 28 days after balloon-injury, and then the aortic tissues were collected for morphometric analysis as well as for measurements of the mRNA or protein expression of angiotensin II, angiotensin II type 1 (AT1) receptor, angiotensin II type 2 (AT2) receptor, TLR4, endothelial nitric oxide synthase (eNOS), inducible NOS (iNOS), serine/arginine-rich splicing factor 1(SRSF1) and extracellular signal regulated kinase (ERK). Valsartan at a dose of 20 mg/kg/day markedly decreased neointimal hyperplasia in the aorta of balloon-injured rats, and significantly reduced the mRNA or protein expression of TLR4, AT1 receptor, SRSF1 and phosphorylated-ERK (p-ERK) as well as the aortic levels of iNOS (all p < 0.05). Moreover, valsartan increased the eNOS level and AT2 receptor mRNA and protein expression levels (all p < 0.05). Valsartan prevented neointimal hyperplasia and inhibited SRSF1 expression and the TLR4-iNOS-ERK-AT1 receptor pathway in the balloon-injured rat aorta.
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Affiliation(s)
- Yonghong Li
- Department of Cardiology, Affilicated Hospital of Qingdao University, Qingdao, China.
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Nan J, Meng S, Hu H, Jia R, Chen C, Peng J, Jin Z. <p>The Predictive Value of Monocyte Count to High-Density Lipoprotein Cholesterol Ratio in Restenosis After Drug-Eluting Stent Implantation</p>. Int J Gen Med 2020; 13:1255-1263. [PMID: 33269001 PMCID: PMC7701365 DOI: 10.2147/ijgm.s275202] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 11/03/2020] [Indexed: 02/03/2023] Open
Abstract
Background The clinical value of monocyte count to high-density lipoprotein cholesterol ratio (MHR) in in-stent restenosis (ISR) of patients who have undergone bare metal stent implantation has been studied. However, the predictive value of MHR in ISR for patients who have undergone drug-eluting stent (DES) implantation has not been explored. Methods Non-ST segment elevation acute coronary syndrome (NSTE-ACS) patients who had undergone DES implantation and coronary angiography follow-up at the Beijing Shijitan Hospital, Capital Medical University, between January 1, 2008, and December 31, 2018, were retrospectively enrolled. Patients were divided into ISR and non-ISR groups depending on the follow-up coronary angiography results. Relative clinical information was recorded and analyzed. The receiver operating characteristic curve analysis was used to determine the optimum cut-off pre-procedural MHR to predict ISR. Results A total of 214 patients were enrolled in our study. The mean period between two coronary angiography procedures was 25.4±9.8 months. Percutaneous coronary intervention due to NSTE myocardial infarction, a bifurcation lesion, increased platelet count, and a high MHR were the independent risk factors in multivariate logistic regression analyses. Conclusion Our results indicated that elevated MHR is an independent and useful predictor of ISR in NSTE-ACS patients who have undergone DES implantation.
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Affiliation(s)
- Jing Nan
- Department of Cardiology and Macrovascular Disease, Beijing Tiantan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Shuai Meng
- Department of Cardiology and Macrovascular Disease, Beijing Tiantan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Hongyu Hu
- Department of Cardiology and Macrovascular Disease, Beijing Tiantan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Ruofei Jia
- Department of Cardiology and Macrovascular Disease, Beijing Tiantan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Ce Chen
- Department of Cardiology, Beijing Shijitan Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Jianjun Peng
- Department of Cardiology, Beijing Shijitan Hospital, Capital Medical University, Beijing, People’s Republic of China
- Correspondence: Jianjun PengDepartment of Cardiology, Beijing Shijitan Hospital, Capital Medical University, No. 4 Tieyi Road, Haidian Distict, Beijing100038, People’s Republic of ChinaTel +86 18811332608 Email
| | - Zening Jin
- Department of Cardiology and Macrovascular Disease, Beijing Tiantan Hospital, Capital Medical University, Beijing, People’s Republic of China
- Zening JinDepartment of Cardiology and Macrovascular Disease, Beijing Tiantan Hospital, Capital Medical University, No. 119 South Fourth Ring West Road, Fengtai District, Beijing100070, People’s Republic of ChinaTel +86 15652966904 Email
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Li X, Zhou H, Guo D, Hu Y, Fang X, Chen Y, Zhang F. Oxidative stress and inflammation: Early predictive indicators of multiple recurrent coronary in‐stent chronic total occlusions in elderly patients after coronary stenting. IUBMB Life 2020; 72:1023-1033. [PMID: 32022379 DOI: 10.1002/iub.2239] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Accepted: 01/23/2020] [Indexed: 11/07/2022]
Affiliation(s)
- Xia Li
- Department of GeriatricsThe Affiliated Huai'an Hospital of Xuzhou Medical University Huai'an China
| | - Hualan Zhou
- Department of GeriatricsThe Affiliated Huai'an Hospital of Xuzhou Medical University Huai'an China
| | - Dianxuan Guo
- Department of GeriatricsThe Affiliated Huai'an Hospital of Xuzhou Medical University Huai'an China
| | - Youdong Hu
- Department of GeriatricsThe Affiliated Huai'an Hospital of Xuzhou Medical University Huai'an China
| | - Xiang Fang
- Department of GeriatricsThe Affiliated Huai'an Hospital of Xuzhou Medical University Huai'an China
| | - Ying Chen
- Department of GeriatricsThe Affiliated Huai'an Hospital of Xuzhou Medical University Huai'an China
| | - Fenglin Zhang
- Department of GeriatricsThe Affiliated Huai'an Hospital of Xuzhou Medical University Huai'an China
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Joo HJ, Jeong HS, Kook H, Lee SH, Park JH, Hong SJ, Yu CW, Lim DS. Impact of hyperuricemia on clinical outcomes after percutaneous coronary intervention for in-stent restenosis. BMC Cardiovasc Disord 2018; 18:114. [PMID: 29890945 PMCID: PMC5996510 DOI: 10.1186/s12872-018-0840-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 05/17/2018] [Indexed: 12/22/2022] Open
Abstract
Background There have been limited data on the impact of hyperuricemia on long-term clinical outcomes after percutaneous coronary intervention (PCI) for in-stent restenosis (ISR). Methods From January 2009 to July 2015, 317 patients who underwent repeat PCI for ISR were divided into two groups: patients with normal serum uric acid (UA) levels (normal UA group) and patients with higher serum UA levels (higher UA group). The higher UA group included patients with serum UA levels > 6.8 mg/dL or patients who were taking anti-hyperuricemic medication. Results During a median follow-up period of 1088 days, the cumulative incidence rates of major adverse event (MAE), including a composite of all-cause death, non-fatal myocardial infarction, and any revascularization, were similar between the two groups (higher UA 36.4% vs. normal UA 29.9%, p = 0.389, log-rank p = 0.367). Follow-up angiographic data showed similar outcomes of late lumen loss (0.8 ± 0.9 mm vs. 0.8 ± 1.1 mm, p = 0.895) and binary restenosis rate (28.1% vs. 34.7%, p = 0.622). Multivariate Cox regression analysis indicated higher levels of low-density lipoprotein cholesterol (hazard ratio [HR] 1.011, 95% confidence interval [CI] 1.003–1.019, p = 0.006) and lower left ventricular ejection fraction (HR 0.972, 95% CI 0.948–0.996, p = 0.022), but not UA levels, to be the independent risk predictors of MAE. Conclusion Hyperuricemia is not associated with poor clinical outcomes after repeat PCI for ISR lesions. Electronic supplementary material The online version of this article (10.1186/s12872-018-0840-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Hyung Joon Joo
- Department of Cardiology, Cardiovascular Center, Korea University Anam Hospital, 126-1, 5ka, Anam-dong, Sungbuk-ku, Seoul, 136-705, Republic of Korea
| | - Han Saem Jeong
- Department of Cardiology, Cardiovascular Center, Korea University Anam Hospital, 126-1, 5ka, Anam-dong, Sungbuk-ku, Seoul, 136-705, Republic of Korea
| | - Hyungdon Kook
- Department of Cardiology, Cardiovascular Center, Korea University Anam Hospital, 126-1, 5ka, Anam-dong, Sungbuk-ku, Seoul, 136-705, Republic of Korea
| | - Seung Hun Lee
- Department of Cardiology, Cardiovascular Center, Korea University Anam Hospital, 126-1, 5ka, Anam-dong, Sungbuk-ku, Seoul, 136-705, Republic of Korea
| | - Jae Hyoung Park
- Department of Cardiology, Cardiovascular Center, Korea University Anam Hospital, 126-1, 5ka, Anam-dong, Sungbuk-ku, Seoul, 136-705, Republic of Korea
| | - Soon Jun Hong
- Department of Cardiology, Cardiovascular Center, Korea University Anam Hospital, 126-1, 5ka, Anam-dong, Sungbuk-ku, Seoul, 136-705, Republic of Korea
| | - Cheol Woong Yu
- Department of Cardiology, Cardiovascular Center, Korea University Anam Hospital, 126-1, 5ka, Anam-dong, Sungbuk-ku, Seoul, 136-705, Republic of Korea
| | - Do-Sum Lim
- Department of Cardiology, Cardiovascular Center, Korea University Anam Hospital, 126-1, 5ka, Anam-dong, Sungbuk-ku, Seoul, 136-705, Republic of Korea.
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Jiang D, Yang Y, Li D. Lipopolysaccharide induced vascular smooth muscle cells proliferation: A new potential therapeutic target for proliferative vascular diseases. Cell Prolif 2017; 50. [PMID: 28150467 DOI: 10.1111/cpr.12332] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Accepted: 12/30/2016] [Indexed: 12/12/2022] Open
Abstract
Vascular smooth muscle cells (VSMCs) proliferation is involved in vascular atherosclerosis and restenosis. Recent studies have demonstrated that lipopolysaccharide (LPS) promotes VSMCs proliferation, but the signalling pathways which are involved are not completely understood. The purpose of this review was to summarize the existing knowledge of the role and molecular mechanisms involved in controlling VSMCs proliferation stimulated by LPS and mediated by toll-like receptor 4 (TLR4) signalling pathways. Moreover, the potential inhibitors of TLR4 signalling for VSMCs proliferation in proliferative vascular diseases are discussed.
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Affiliation(s)
- Dehua Jiang
- Institute of Cardiovascular Disease Research, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Yu Yang
- Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Dongye Li
- Institute of Cardiovascular Disease Research, Xuzhou Medical University, Xuzhou, Jiangsu, China.,Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
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Hutchinson JA, Burholt S, Hamley IW. Peptide hormones and lipopeptides: from self-assembly to therapeutic applications. J Pept Sci 2017; 23:82-94. [PMID: 28127868 PMCID: PMC5324658 DOI: 10.1002/psc.2954] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 11/24/2016] [Accepted: 11/27/2016] [Indexed: 12/18/2022]
Abstract
This review describes the properties and activities of lipopeptides and peptide hormones and how the lipidation of peptide hormones could potentially produce therapeutic agents combating some of the most prevalent diseases and conditions. The self‐assembly of these types of molecules is outlined, and how this can impact on bioactivity. Peptide hormones specific to the uptake of food and produced in the gastrointestinal tract are discussed in detail. The advantages of lipidated peptide hormones over natural peptide hormones are summarised, in terms of stability and renal clearance, with potential application as therapeutic agents. © 2017 The Authors Journal of Peptide Science published by European Peptide Society and John Wiley & Sons Ltd.
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Affiliation(s)
- J A Hutchinson
- Department of Chemistry, University of Reading, Whiteknights, Reading, RG6 6AD, UK
| | - S Burholt
- Department of Chemistry, University of Reading, Whiteknights, Reading, RG6 6AD, UK
| | - I W Hamley
- Department of Chemistry, University of Reading, Whiteknights, Reading, RG6 6AD, UK
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Influence of Antioxidants on Leptin Metabolism and its Role in the Pathogenesis of Obesity. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 960:399-413. [PMID: 28585209 DOI: 10.1007/978-3-319-48382-5_17] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Obesity is associated with low-grade inflammation. Leptin, a hormone made by fat cells regulates appetite and hunger and thus food intake behavior. Interestingly, , food preservatives like sodium sulfite and sodium benzoate and also natural colorant and spice compounds such as curcumin were found to decrease the release of leptin in murine 3T3-L1 adipocytes, after co-incubation with LPS, which was added to mimic the pro-inflammatory status in obesity. Several of these compounds are well known food antioxidants.Whilst reducing oxidation events is beneficial in states of elevated oxidative stress, overexposure to food antioxidant can lead to adverse effects. There are hints from in vivo data, that antioxidant stress in younger age plays a role in the development of adiposity in later life. The insufficient exposure to oxidizing compounds like reactive oxygen species (ROS) cannot only cause an insufficient burning of calories but there is also a link to the regulation of food intake behavior. If the in vitro findings can be extrapolated to the in vivo situation, consumption of antioxidant supplemented food could lead to decreased leptin release and contribute to an obesogenic environment. This aspect sheds some new critical light on the potential role of an antioxidant-enriched nutrition in the obesity epidemic during the past few centuries. Doing sports could represent not only a proper strategy to initiate physiological ROS production and burning of calories, but also may shift the hormone milieu towards a reduction of hunger feelings and thus reduce appetite and food intake.
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