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Fragkiadoulaki E, Tsatsakis A, Nikitovic D, Georgiadis G, Kalogeraki A, Kaloudis K, Alegkakis A, Karzi V, Mamoulakis C. Resveratrol and lycopene ameliorate contrast-induced nephropathy in a rabbit model. Hum Exp Toxicol 2022; 41:9603271221145355. [PMID: 36565226 DOI: 10.1177/09603271221145355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Oxidative stress appears to possess a central role in CIN pathophysiology. Resveratrol (Res) and lycopene (Lyc) are strong natural antioxidants evaluated in a limited number of CIN animal studies in vivo. The aim of the study was to evaluate the potential renoprotective effects of Res/Lyc in a CIN rabbit model. Twenty-four adult male New Zealand white rabbits were equally assigned into four groups: control (saline), CIN (intravenous iopromide; 7.5 g iodine/kg), Res + CIN (per os Res; 5 mg/kg), and Lyc + CIN (per os Lyc; 4 mg/kg). Serum Cr (sCr); symmetric/asymmetric dimethylarginine (SDMA/ADMA); oxidative stress biomarkers: malondialdehyde; total antioxidant capacity; catalase; glutathione) were evaluated in blood samples at three time points: right after (0 h); 24 h; 48 h after iopromide/saline administration. CD20+/CD3+ lymphocytes were determined (48 h). All animals were sacrificed at 48 h and both kidneys collected. Oxidative stress biomarkers were measured in renal tissue. sCr and SDMA/ADMA levels increased significantly in CIN compared to all groups. Oxidative stress secondary to CIN in blood/kidneys was suppressed by Res/Lyc. B and T lymphocytes decreased significantly in CIN compared to all groups. The present study provides emerging evidence that Res/Lyc ameliorate CIN by modulating oxidant/antioxidant balance in blood/renal tissue and by inhibiting vasoconstriction/blood cytotoxicity.
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Affiliation(s)
- Eirini Fragkiadoulaki
- Department of Urology, Medical School, University General Hospital of Heraklion, 37778University of Crete, Heraklion, Greece.,Department of Forensic Sciences and Toxicology, Medical School, 37778University of Crete, Heraklion, Greece
| | - Aristides Tsatsakis
- Department of Forensic Sciences and Toxicology, Medical School, 37778University of Crete, Heraklion, Greece
| | - Dragana Nikitovic
- Laboratory of Anatomy-Histology-Embryology, Medical School, 37778University of Crete, Heraklion, Greece
| | - Georgios Georgiadis
- Department of Urology, Medical School, University General Hospital of Heraklion, 37778University of Crete, Heraklion, Greece
| | - Alexandra Kalogeraki
- Laboratory of Cytopathology, Medical School, 37778University of Crete, Heraklion, Greece
| | - Konstantinos Kaloudis
- Department of Forensic Sciences and Toxicology, Medical School, 37778University of Crete, Heraklion, Greece
| | - Athanasios Alegkakis
- Department of Forensic Sciences and Toxicology, Medical School, 37778University of Crete, Heraklion, Greece
| | - Vasiliki Karzi
- Department of Forensic Sciences and Toxicology, Medical School, 37778University of Crete, Heraklion, Greece
| | - Charalampos Mamoulakis
- Department of Urology, Medical School, University General Hospital of Heraklion, 37778University of Crete, Heraklion, Greece
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Bruno F, Castelli G, Vitale F, Catanzaro S, Badaco VV, Roberti M, Colomba C, Cascio A, Tolomeo M. Antiparasitic Effect of Stilbene and Terphenyl Compounds against Trypanosoma cruzi Parasites. Pharmaceuticals (Basel) 2021; 14:ph14111199. [PMID: 34832980 PMCID: PMC8617688 DOI: 10.3390/ph14111199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/19/2021] [Accepted: 11/19/2021] [Indexed: 11/16/2022] Open
Abstract
Background: Chagas disease, also known as American trypanosomiasis, is a potentially life-threatening illness caused by the protozoan parasite Trypanosoma cruzi. No progress in the treatment of this pathology has been made since Nifurtimox was introduced more than fifty years ago, and this drug is considered very aggressive and may cause several adverse effects. This drug currently has severe limitations, including a high frequency of undesirable side effects and limited efficacy and availability, so research to discover new drugs for the treatment of Chagas disease is imperative. Many drugs available on the market are natural products as found in nature or compounds designed based on the structure and activity of these natural products. Methods: This study evaluated the in vitro antiparasitic activity of a series of previously synthesized stilbene and terphenyl compounds in T. cruzi epimastigotes and intracellular amastigotes. The action of the most selective compounds was investigated by flow cytometric analysis to evaluate the mechanism of cell death. The ability to induce apoptosis or caspase-1 inflammasomes was assayed in macrophages infected with T. cruzi after treatment, comparing it with that of Nifurtimox. Results: The stilbene ST18 was the most potent compound of the series. It was slightly less active than Nifurtimox in epimastigotes but most active in intracellular amastigotes. Compared to Nifurtimox, it was markedly less cytotoxic when tested in vitro on normal cells. ST18 was able to induce a marked increase in parasites positive for Annexin V and monodansylcadaverine. Moreover, ST18 induced the activation, in infected macrophages, of caspase-1, a conserved enzyme that plays a major role in controlling parasitemia, host survival and the onset of the adaptive immune response in Trypanosoma infection. Conclusions: The antiparasitic activity of ST18 together with its ability to activate caspase-1 in infected macrophages and its low toxicity toward normal cells makes this compound interesting for further clinical investigation.
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Affiliation(s)
- Federica Bruno
- National Reference Center for Leishmaniasis (C.Re.Na.L.), Istituto Zooprofilattico Sperimentale della Sicilia, Via Gino Marinuzzi 3, 90129 Palermo, Italy; (F.B.); (F.V.); (S.C.); (V.V.B.)
| | - Germano Castelli
- National Reference Center for Leishmaniasis (C.Re.Na.L.), Istituto Zooprofilattico Sperimentale della Sicilia, Via Gino Marinuzzi 3, 90129 Palermo, Italy; (F.B.); (F.V.); (S.C.); (V.V.B.)
- Correspondence: ; Tel.: +39-0916565450
| | - Fabrizio Vitale
- National Reference Center for Leishmaniasis (C.Re.Na.L.), Istituto Zooprofilattico Sperimentale della Sicilia, Via Gino Marinuzzi 3, 90129 Palermo, Italy; (F.B.); (F.V.); (S.C.); (V.V.B.)
| | - Simone Catanzaro
- National Reference Center for Leishmaniasis (C.Re.Na.L.), Istituto Zooprofilattico Sperimentale della Sicilia, Via Gino Marinuzzi 3, 90129 Palermo, Italy; (F.B.); (F.V.); (S.C.); (V.V.B.)
| | - Valeria Vitale Badaco
- National Reference Center for Leishmaniasis (C.Re.Na.L.), Istituto Zooprofilattico Sperimentale della Sicilia, Via Gino Marinuzzi 3, 90129 Palermo, Italy; (F.B.); (F.V.); (S.C.); (V.V.B.)
| | - Marinella Roberti
- Department of Pharmacy and Biotechnology, University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy;
| | - Claudia Colomba
- Department of Health Promotion Sciences, Section of Infectious Diseases, University of Palermo, Via del Vespro 129, 90127 Palermo, Italy; (C.C.); (A.C.); (M.T.)
| | - Antonio Cascio
- Department of Health Promotion Sciences, Section of Infectious Diseases, University of Palermo, Via del Vespro 129, 90127 Palermo, Italy; (C.C.); (A.C.); (M.T.)
| | - Manlio Tolomeo
- Department of Health Promotion Sciences, Section of Infectious Diseases, University of Palermo, Via del Vespro 129, 90127 Palermo, Italy; (C.C.); (A.C.); (M.T.)
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El Haouari M. Platelet Oxidative Stress and its Relationship with Cardiovascular Diseases in Type 2 Diabetes Mellitus Patients. Curr Med Chem 2019; 26:4145-4165. [PMID: 28982316 DOI: 10.2174/0929867324666171005114456] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 06/07/2017] [Accepted: 06/07/2017] [Indexed: 01/01/2023]
Abstract
Enhanced platelet activation and thrombosis are linked to various cardiovascular diseases (CVD). Among other mechanisms, oxidative stress seems to play a pivotal role in platelet hyperactivity. Indeed, upon stimulation by physiological agonists, human platelets generate and release several types of reactive oxygen species (ROS) such as O2 -, H2O2 or OH-, further amplifying the platelet activation response via various signalling pathways, including, formation of isoprostanes, Ca2+ mobilization and NO inactivation. Furthermore, excessive platelet ROS generation, incorporation of free radicals from environment and/or depletion of antioxidants induce pro-oxidant, pro-inflammatory and platelet hyperaggregability effects, leading to the incidence of cardiovascular events. Here, we review the current knowledge regarding the effect of oxidative stress on platelet signaling pathways and its implication in CVD such as type 2 diabetes mellitus. We also summarize the role of natural antioxidants included in vegetables, fruits and medicinal herbs in reducing platelet function via an oxidative stress-mediated mechanism.
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Affiliation(s)
- Mohammed El Haouari
- Centre Regional des Metiers de l'Education et de la Formation de Taza (CRMEF - Taza), B.P: 1178 - Taza Gare, Morocco
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Kim GD. SIRT1-Mediated Protective Effect of Aralia elata (Miq.) Seem against High-Glucose-Induced Senescence in Human Umbilical Vein Endothelial Cells. Nutrients 2019; 11:nu11112625. [PMID: 31684006 PMCID: PMC6893469 DOI: 10.3390/nu11112625] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 10/28/2019] [Indexed: 02/07/2023] Open
Abstract
Aralia elata (Miq.) Seem (AS) is widely been for treating many diseases, enhancing energy, and boosting immunity; however, its protective effects against high-glucose (HG)-triggered endothelial dysfunction and the potential underlying mechanisms have not been investigated. In this study, we determined the effect of AS on senescence in human umbilical vein endothelial cells (HUVECs) and elucidated the mechanisms underlying its anti-aging effects. The senescence model of endothelial cells (ECs) was established by culturing HUVECs in media containing HG (30 mM). We found that the proportion of senescent (senescence-associated β-galactosidase+) cells in the HG group was significantly higher than that in the control group; however, this increase was suppressed by AS treatment. Moreover, cell cycle analysis revealed that AS (20 μg/mL) significantly recovered HG-induced cell cycle arrest in ECs, and Western blot revealed that AS prevented HG-induced decreases in silent information regulator 1 (SIRT1) level and endothelial nitric oxide synthase (eNOS) phosphorylation. These results show that AS delayed HG-induced senescence in ECs by modulation of the SIRT1/5′ AMP-activated protein kinase and AKT/eNOS pathways.
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Affiliation(s)
- Gi Dae Kim
- Department of Food and Nutrition, Kyungnam University, Changwon-si 51767, Korea.
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Asymmetric dimethylarginine aggravates blood-retinal barrier breakdown of diabetic retinopathy via inhibition of intercellular communication in retinal pericytes. Amino Acids 2019; 51:1515-1526. [PMID: 31576457 DOI: 10.1007/s00726-019-02788-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 09/14/2019] [Indexed: 10/25/2022]
Abstract
Blood-retinal barrier breakdown is the main pathological characteristics of diabetic retinopathy (DR). Asymmetric dimethylarginine (ADMA) was reported to be elevated in DR patients. In this study, we observed the dynamic profile of ADMA, retinal morphology and permeability of BRB at 2, 4 or 8 week of diabetic rats induced by a single intraperitoneal injection of streptozocin (60 mg/kg) and in cultured rat retinal pericytes pretreated with D-glucose (30 mM) for 1, 3, 5 and 7 days or ADMA (3, 10, 30 μM) for 24, 48 and 72 h, trying to explore the effects of ADMA on blood-retinal barrier in DR. Gap junction intercellular communication (GJIC) and the expression of blood-retinal barrier-specific component connexin 43 (Cx43) were examined in diabetic rats or cultured retinal pericytes to elucidate whether ADMA impacted blood-retinal barrier function via damaging Cx43-GJIC. The results showed that with increasing duration of diabetes, the ultrastructure of blood-retinal barrier of diabetic rats appeared cell junction damage, apoptosis of retinal pericytes and breakdown of barrier successively. The increases in retinal permeability, ADMA levels and Cx43 expression, and abnormal GJIC were observed in diabetic rats and retinal pericytes exposed to D-glucose (30 mM). A glucose-like effect was seen using ADMA or another L-arginine analogue NG-monomethyl-L-arginine or dimethylarginine dimethylaminohydrolases (DDAHs) siRNA, implicating that ADMA aggravated the breakdown of blood-retinal barrier via damaging Cx43-GJIC.
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Topical delivery of 3,5,4'-trimethoxy-trans-stilbene-loaded microemulsion-based hydrogel for the treatment of osteoarthritis in a rabbit model. Drug Deliv Transl Res 2019; 9:357-365. [PMID: 30430453 DOI: 10.1007/s13346-018-00604-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The aim of this study was to develop a microemulsion-based hydrogel (MBH) formulation of 3,5,4'-trimethoxy-trans-stilbene (BTM) as topical delivery system for the treatment of osteoarthritis (OA). The pseudo-ternary phase diagrams were constructed to optimize the microemulsion (ME) formulation. The ME formulation containing 18.8% Cremopher EL35 (surfactant), 9.4% Transcutol HP (co-surfactant), 3.1% LABRAFIL M 1944 CS (oil), and 68.7% water was selected. The obtained BTM-loaded ME (BTM-ME) had a spherical morphology (17.5 ± 1.4 nm), with polydispersity index (PDI) value of 0.068 ± 0.016 and zeta potential of - 11.8 ± 0.5 mV, and was converted into BTM-loaded MBH (BTM-MBH) using Carbopol 940. Ex vivo skin permeation study showed that both ME and MBH formulations significantly enhanced the amount of BTM permeated. The cumulative amount of BTM permeated after 12 h (Q12) for ME, and MBH formulations were 3.25- and 1.96-fold higher than that for emulsion gel (EG). Pharmacokinetic study showed that the AUC of BTM suspension (oral) was three times higher than that of BTM-MBH (topical). Topical delivery of BTM-MBH demonstrated remarkable anti-OA effect in a rabbit model of OA induced by papain, with decreased levels of pro-inflammatory cytokines. The developed MBH formulation might be a promising strategy for topical delivery of BTM for treatment of OA.
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Farhadnejad H, Emamat H, Zand H. The Effect of Resveratrol on Cellular Senescence in Normal and Cancer Cells: Focusing on Cancer and Age-Related Diseases. Nutr Cancer 2019; 71:1175-1180. [DOI: 10.1080/01635581.2019.1597907] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Hossein Farhadnejad
- Student Research Committee, Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hadi Emamat
- Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Hamid Zand
- Department of Basic Medical Sciences, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Zhu ZD, Ye JM, Fu XM, Wang XC, Ye JY, Wu XR, Hua P, Liao YQ, Xuan W, Duan JL, Li WY, Fu H, Xia ZH, Zhang X. DDAH2 alleviates myocardial fibrosis in diabetic cardiomyopathy through activation of the DDAH/ADMA/NOS/NO pathway in rats. Int J Mol Med 2018; 43:749-760. [PMID: 30569164 PMCID: PMC6317674 DOI: 10.3892/ijmm.2018.4034] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 11/27/2018] [Indexed: 01/02/2023] Open
Abstract
Diabetic cardiomyopathy (DCM) is a form of idiopathic heart disease, with signs including hypertrophy of myocardial cells, hypertension‑independent fibrosis and coronary artery disease. Considering the involvement of dimethylarginine dimethylaminohydrolase 2 (DDAH2) in diabetes, it was hypothesized that DDAH2 may be beneficial to cardiac function and myocardial fibrosis during the progression of DCM with involvement of the DDAH/asymmetric NG, NGdimethyl‑L‑arginine (ADMA)/nitric oxide synthase (NOS)/nitric oxide (NO) signaling pathway. Following establishment of diabetic rat models, diabetes‑related blood biochemical indices and cardiac function were measured in diabetic rats treated with lentivirus expressing DDAH2, short hairpin RNA against DDAH2, or L‑NNA (inhibitor of NOS) to identify the roles of DDAH2 in DCM. The functional roles of DDAH2 in DCM were further determined through detection of the levels of collagen I, matrix metalloproteinase 2 (MMP2) and tissue inhibitor of metalloproteinase 2 (TIMP2). The H9C2 myocardial cell line was selected for in vitro experiments. The effects of DDAH2 on the migration of myocardial cells under high glucose conditions were also examined. To further investigate the underlying regulatory mechanism of DDAH2 in DCM, the contents of ADMA and NO, and the activities of DDAH and NOS were observed. The DCM model rats treated with DDAH2 exhibited reduced left ventricular end‑diastolic pressure, and decreased blood glucose, total cholesterol, triglyceride, fasting blood glucose, and fasting insulin levels, but exhibited increased left ventricular systolic pressure and maximum rate of left ventricular pressure rise/fall levels in myocardial tissues. Myocardial cells under high glucose conditions treated with DDAH2 showed reductions in collagen I, MMP2 and TIMP2, indicating that DDAH2 reduced cell migration. Decreased levels of ADMA and NO but increased levels of DDAH and NOS were observed following treatment with DDAH2, indicating that the DDAH/ADMA/NOS/NO pathway was activated. These results reveal that the overexpression of DDAH2 attenuates myocardial fibrosis and protects against DCM through activation of the DDAH/ADMA/NOS/NO pathway in DCM rats. These results indicate that DDAH2 is a potential therapeutic candidate for the treatment of DCM.
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Affiliation(s)
- Zhen-Dong Zhu
- Yunnan Research Center for Geriatric Diseases, The First People's Hospital of Yunnan Province, Affiliated Hospital of Kunming Science and Technology University, Kunming, Yunnan 650032, P.R. China
| | - Ji-Ming Ye
- Department of Pharmacy, The First People's Hospital of Yunnan Province, Affiliated Hospital of Kunming Science and Technology University, Kunming, Yunnan 650032, P.R. China
| | - Xue-Mei Fu
- Department of Geriatrics, The First People's Hospital of Yunnan Province, Affiliated Hospital of Kunming Science and Technology University, Kunming, Yunnan 650032, P.R. China
| | - Xue-Chang Wang
- Department of Pharmacy, the Third People's Hospital of Yunnan Province, The Second Affiliated Hospital of Dali University, Kunming, Yunnan 650011, P.R. China
| | - Ji-Yun Ye
- Pathogenic Organisms Department of Experimental Center, School of Basic Medical Sciences, Kunming Medical University, Kunming, Yunnan 650500, P.R. China
| | - Xin-Ran Wu
- Center Laboratory, The Third People's Hospital of Yunnan Province, The Second Affiliated Hospital of Dali University, Kunming, Yunnan 650011, P.R. China
| | - Peng Hua
- Department of Pharmacy, the Third People's Hospital of Yunnan Province, The Second Affiliated Hospital of Dali University, Kunming, Yunnan 650011, P.R. China
| | - Yu-Qiong Liao
- Department of Geriatrics, The First People's Hospital of Yunnan Province, Affiliated Hospital of Kunming Science and Technology University, Kunming, Yunnan 650032, P.R. China
| | - Wei Xuan
- Department of Geriatrics, The First People's Hospital of Yunnan Province, Affiliated Hospital of Kunming Science and Technology University, Kunming, Yunnan 650032, P.R. China
| | - Jin-Lan Duan
- Department of Geriatrics, The First People's Hospital of Yunnan Province, Affiliated Hospital of Kunming Science and Technology University, Kunming, Yunnan 650032, P.R. China
| | - Wei-Yuan Li
- Department of Geriatrics, The First People's Hospital of Yunnan Province, Affiliated Hospital of Kunming Science and Technology University, Kunming, Yunnan 650032, P.R. China
| | - Hui Fu
- Clinic Laboratory, The First People's Hospital of Yunnan Province, Affiliated Hospital of Kunming Science and Technology University, Kunming, Yunnan 650032, P.R. China
| | - Zhong-Hua Xia
- Clinical Medical College of Dali University, Dali, Yunnan 671003, P.R. China
| | - Xuan Zhang
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, Yunnan 650500, P.R. China
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Xia N, Förstermann U, Li H. Effects of resveratrol on eNOS in the endothelium and the perivascular adipose tissue. Ann N Y Acad Sci 2017; 1403:132-141. [DOI: 10.1111/nyas.13397] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 05/04/2017] [Indexed: 12/26/2022]
Affiliation(s)
- Ning Xia
- Department of Pharmacology; Johannes Gutenberg University Medical Center; Mainz Germany
| | - Ulrich Förstermann
- Department of Pharmacology; Johannes Gutenberg University Medical Center; Mainz Germany
| | - Huige Li
- Department of Pharmacology; Johannes Gutenberg University Medical Center; Mainz Germany
- Center for Translational Vascular Biology (CTVB); Johannes Gutenberg University Medical Center; Mainz Germany
- German Center for Cardiovascular Research (DZHK); Partner Site Rhine-Main; Mainz Germany
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Li Q, Wang K, Ma Y, Qin C, Dong C, Jin P, Wu Y, Xiong X, Li N, Hu C, Peng J, Yang Z. Resveratrol derivative BTM-0512 mitigates obesity by promoting beige remodeling of subcutaneous preadipocytes. Acta Biochim Biophys Sin (Shanghai) 2017; 49:318-327. [PMID: 28338809 DOI: 10.1093/abbs/gmx009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Indexed: 11/14/2022] Open
Abstract
Recent studies revealed that sirtuin 1 (SIRT1) is involved in the regulation of energy metabolism and its agonist resveratrol showed anti-obesity effect. This study aims to determine whether BTM-0512, a novel derivative of resveratrol, acts as an antagonist of obesity and to explore its possible mechanisms. High-fat diet (HFD)-induced obese mice were intragastrically administered with BTM-0512 (5, 10, and 20 mg/kg/day) or resveratrol (10 mg/kg/day). It was found that the body weight, Lee's index, ratio of visceral adipose tissue (VAT) to body weight, and blood glucose were significantly reduced in BTM-0512-treated mice when compared with those in mice treated with resveratrol. BTM-0512 up-regulated the expressions of SIRT1, full length PRDM16 (fPRDM16), total PRDM16 (tPRDM16, including fPPRDM16 and other PRDM16 isoforms), and uncoupling protein 1 (UCP1) in both brown and subcutaneous adipose tissues. Although BTM-0512 and resveratrol also up-regulated SIRT1 and tPRDM16 levels in VAT of HFD-induced obese mice, the expressions of fPRDM16, UCP1, and TMEM26 were down-regulated. In mouse primary subcutaneous preadipocytes cultured with or without adipogenic medium, BTM-0512 up-regulated fPRDM16, tPRDM16, and UCP1 expressions, which was reversed by SIRT1 antagonists. But in cultured brown and visceral adipocytes, the UCP1 protein level showed no significant change after treatment with 1 μM of BTM-0512. Moreover, transfection with human SIRT1 plasmid reduced lipid deposit, as well as the mRNA levels of fPRDM16, UCP1, and TMEM26, in cultured human visceral adipose-derived stem cells. In conclusion, BTM-0512 has stronger anti-obesity effect than resveratrol, which might be associated with activation of beige remodeling in subcutaneous adipose tissue.
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Affiliation(s)
- Qingqing Li
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410078, China
| | - Kuansong Wang
- Department of Pathology, Xiangya Hospital, Central South University, Changsha 410008, China
- Department of Pathology, School of Basic Medicine, Central South University, Changsha 410008, China
| | - Yipeng Ma
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410078, China
| | - Chunxiang Qin
- Department of Obstetrics and Gynecology, the Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Changsheng Dong
- Division of Anesthetic, the Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha 410013, China
| | - Ping Jin
- Department of Endocrinology, the Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - Yan Wu
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410078, China
| | - Xiaoming Xiong
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410078, China
| | - Niansheng Li
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410078, China
| | - Changping Hu
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410078, China
| | - Jun Peng
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410078, China
- Hunan Provincial Key Laboratory of Cardiovascular Research, Changsha 410078, China
| | - Zhichun Yang
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410078, China
- Hunan Provincial Key Laboratory of Cardiovascular Research, Changsha 410078, China
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11
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Charles S, Raj V, Arokiaraj J, Mala K. Caveolin1/protein arginine methyltransferase1/sirtuin1 axis as a potential target against endothelial dysfunction. Pharmacol Res 2017; 119:1-11. [PMID: 28126510 DOI: 10.1016/j.phrs.2017.01.022] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 11/20/2016] [Accepted: 01/22/2017] [Indexed: 12/23/2022]
Abstract
Endothelial dysfunction (ED), an established response to cardiovascular risk factors, is characterized by increased levels of soluble molecules secreted by endothelial cells (EC). Evidence suggest that ED is an independent predictor of cardiac events and that it is associated with a deficiency in production or bioavailability of nitric oxide (NO) and/or an imbalance in the relative contribution of endothelium-derived relaxing and contracting factors. ED can be reversed by treating cardiovascular risk factors, hence, beyond ambiguity, ED contributes to initiation and progression of atherosclerotic disease. Majority of cardiovascular risk factors act by a common pathway, oxidative stress (OS), characterized by an imbalance in bioavailability of NO and reactive oxygen species (ROS). Enhanced ROS, through several mechanisms, alters competence of EC that leads to ED, reducing its potential to maintain homeostasis and resulting in development of cardiovascular disease (CVD). Influential mechanisms that have been implicated in the development of ED include (i) presence of elevated levels of NOS inhibitor, asymmetric dimethylarginine (ADMA) due to augmented enzyme activity of protein arginine methyl transferase-1 (PRMT1); (ii) decrease in NO generation by endothelial nitric oxide synthase (eNOS) uncoupling, or by reaction of NO with free radicals and (iii) impaired post translational modification of protein (PTM) such as eNOS, caveolin-1 (cav1) and sirtuin-1 (SIRT1). However, the inter-related mechanisms that concur to developing ED is yet to be understood. The events that possibly overlay include OS-induced sequestration of SIRT1 to caveolae facilitating cav1-SIRT1 association; potential increase in lysine acetylation of enzymes such as eNOS and PRMT1 leading to enhanced ADMA formation; imbalance in acetylation-methylation ratio (AMR); diminished NO generation and ED. Here we review current literature from research showing interdependent association between cav1-PRMT1-SIRT1 to the outcomes of experimental and clinical research aiming to preserve endothelial function with gene- or pharmaco-therapy.
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Affiliation(s)
- Soniya Charles
- Department of Biotechnology, School of Bioengineering, SRM University, Potheri 603203, Tamil Nadu, India
| | - Vijay Raj
- Medical College Hospital and Research Center, SRM University, Potheri 603203, Tamil Nadu, India
| | - Jesu Arokiaraj
- Department of Biotechnology, Faculty of Science and Humanities, SRM University, Potheri 603203, Tamil Nadu, India
| | - Kanchana Mala
- Medical College Hospital and Research Center, SRM University, Potheri 603203, Tamil Nadu, India.
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Chistiakov DA, Orekhov AN, Bobryshev YV. Treatment of cardiovascular pathology with epigenetically active agents: Focus on natural and synthetic inhibitors of DNA methylation and histone deacetylation. Int J Cardiol 2016; 227:66-82. [PMID: 27852009 DOI: 10.1016/j.ijcard.2016.11.204] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 11/06/2016] [Indexed: 12/20/2022]
Abstract
Cardiovascular disease (CVD) retains a leadership as a major cause of human death worldwide. Although a substantial progress was attained in the development of cardioprotective and vasculoprotective drugs, a search for new efficient therapeutic strategies and promising targets is under way. Modulation of epigenetic CVD mechanisms through administration epigenetically active agents is one of such new approaches. Epigenetic mechanisms involve heritable changes in gene expression that are not linked to the alteration of DNA sequence. Pathogenesis of CVDs is associated with global genome-wide changes in DNA methylation and histone modifications. Epigenetically active compounds that influence activity of epigenetic modulators such as DNA methyltransferases (DNMTs), histone acetyltransferases, histone deacetylases (HDACs), etc. may correct these pathogenic changes in the epigenome and therefore be used for CVD therapy. To date, many epigenetically active natural substances (such as polyphenols and flavonoids) and synthetic compounds such as DNMT inhibitors or HDAC inhibitors are known. Both native and chemical DNMT and HDAC inhibitors possess a wide range of cytoprotective activities such as anti-inflammatory, antioxidant, anti-apoptotic, anti-anfibrotic, and anti-hypertrophic properties, which are beneficial of treatment of a variety of CVDs. However, so far, only synthetic DNMT inhibitors enter clinical trials while synthetic HDAC inhibitors are still under evaluation in preclinical studies. In this review, we consider epigenetic mechanisms such as DNA methylation and histone modifications in cardiovascular pathology and the epigenetics-based therapeutic approaches focused on the implementation of DNMT and HDAC inhibitors.
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Affiliation(s)
- Dimitry A Chistiakov
- Department of Molecular Genetic Diagnostics and Cell Biology, Division of Laboratory Medicine, Institute of Pediatrics, Research Center for Children's Health, 119991, Moscow, Russia
| | - Alexander N Orekhov
- Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, Moscow, 125315, Russia; Department of Biophysics, Biological Faculty, Moscow State University, Moscow, 119991, Russia; Institute for Atherosclerosis Research, Skolkovo Innovative Center, Moscow, 121609, Russia; National Research Center for Preventive Medicine, Moscow, 101000, Russia
| | - Yuri V Bobryshev
- Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, Moscow, 125315, Russia; Faculty of Medicine, School of Medical Sciences, University of New South Wales, Sydney, NSW 2052, Australia; School of Medicine, University of Western Sydney, Campbelltown, NSW 2560, Australia.
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D'Onofrio N, Servillo L, Giovane A, Casale R, Vitiello M, Marfella R, Paolisso G, Balestrieri ML. Ergothioneine oxidation in the protection against high-glucose induced endothelial senescence: Involvement of SIRT1 and SIRT6. Free Radic Biol Med 2016; 96:211-22. [PMID: 27101740 DOI: 10.1016/j.freeradbiomed.2016.04.013] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 04/13/2016] [Accepted: 04/15/2016] [Indexed: 12/21/2022]
Abstract
Ergothioneine (Egt), the betaine of 2-mercapto-L-histidine, is a dietary antioxidant protecting against many diseases, including cardiovascular disease (CVD), through a redox mechanism different from alkylthiols. Here, experiments were designed to evaluate the mechanisms underlying the beneficial effect of Egt against hyperglycaemia-induced senescence in endothelial cells. To this end, cells were incubated with increasing concentrations of Egt (0.01-1.00mM) for 12h followed by incubation for 48h with high-glucose (25mM). Cell evaluation indicated that viability was not affected by mM concentrations of Egt and that the high-glucose cytotoxicity was prevented with the highest efficacy at 0.5mM Egt. The cytoprotective effect of Egt was paralleled by reduced ROS production, cell senescence, and, interestingly, the formation of hercynine (EH), a betaine we recently found to be produced during the Egt oxidation pathway. Notably, the Egt beneficial effect was exerted through the upregulation of sirtuin 1 (SIRT1) and sirtuin 6 (SIRT6) expression and the downregulation of p66Shc and NF-κB. SIRT1 activity inhibition and SIRT6 gene silencing by small interfering RNA abolished the protective effect of Egt against the high-glucose-induced endothelial senescence. These data provide the first evidence of the Egt ability to interfere with endothelial senescence linked to hyperglycaemia through the regulation of SIRT1 and SIRT6 signaling, thus further strengthening the already assessed role of these two histone deacetylases in type 2 diabetes.
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Affiliation(s)
- Nunzia D'Onofrio
- Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, Naples, Italy
| | - Luigi Servillo
- Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, Naples, Italy
| | - Alfonso Giovane
- Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, Naples, Italy
| | - Rosario Casale
- Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, Naples, Italy
| | - Milena Vitiello
- Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, Naples, Italy
| | - Raffaele Marfella
- Department of Medical, Surgical, Neurological, Metabolic and Aging Sciences, Second University of Naples, Naples, Italy
| | - Giuseppe Paolisso
- Department of Medical, Surgical, Neurological, Metabolic and Aging Sciences, Second University of Naples, Naples, Italy
| | - Maria Luisa Balestrieri
- Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, Naples, Italy.
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Rusu C, Racasan S, Moldovan D, Kacso IM, Potra A, Bondor CI, Patiu IM, Vladutiu D, Caprioara MG. Soluble CD40 ligand in haemodialysis patients: survival impact and cardiovascular prognostic role. Biomarkers 2016; 22:232-238. [PMID: 27295448 DOI: 10.1080/1354750x.2016.1201531] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
CONTEXT Soluble CD40 ligand (sCD40l) can predict cardiovascular events (CVE) and mortality in haemodialysis (HD) patients (short-, medium-term follow-up studies). OBJECTIVE To evaluate the relationship between sCD40l and survival, CVE and mortality in HD patients on long-term follow-up. METHODS We registered 46 HD patients' baseline characteristics, mortality and CVE for 108 months. RESULTS SCD40l correlated positively with C-reactive protein, was higher in survivors, but had no impact on survival and was not predictive for CVE or CV mortality. CONCLUSION The levels of sCD40l have no influence on survival or CVE and mortality in HD patients in a long-term follow-up.
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Affiliation(s)
- Crina Rusu
- a Department of Nephrology , University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca , Romania
| | | | - Diana Moldovan
- a Department of Nephrology , University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca , Romania
| | - Ina Maria Kacso
- a Department of Nephrology , University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca , Romania
| | - Alina Potra
- a Department of Nephrology , University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca , Romania
| | - Cosmina Ioana Bondor
- c Department of Statistics , University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca , Romania
| | | | - Dan Vladutiu
- a Department of Nephrology , University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca , Romania
| | - Mirela Gherman Caprioara
- a Department of Nephrology , University of Medicine and Pharmacy "Iuliu Hatieganu", Cluj-Napoca , Romania
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Bonnefont-Rousselot D. Resveratrol and Cardiovascular Diseases. Nutrients 2016; 8:nu8050250. [PMID: 27144581 PMCID: PMC4882663 DOI: 10.3390/nu8050250] [Citation(s) in RCA: 275] [Impact Index Per Article: 34.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Revised: 04/10/2016] [Accepted: 04/20/2016] [Indexed: 02/06/2023] Open
Abstract
The increased incidence of cardiovascular diseases (CVDs) has stimulated research for substances that could improve cardiovascular health. Among them, resveratrol (RES), a polyphenolic compound notably present in grapes and red wine, has been involved in the “French paradox”. RES is known for its antioxidant and anti-inflammatory properties and for its ability to upregulate endothelial NO synthase (eNOS). RES was able to scavenge •OH/O2•− and peroxyl radicals, which can limit the lipid peroxidation processes. Moreover, in bovine aortic endothelial cells (BAEC) under glucose-induced oxidative stress, RES restored the activity of dimethylargininedimethylaminohydrolase (DDAH), an enzyme that degrades an endogenous inhibitor of eNOS named asymmetric dimethylarginine (ADMA). Thus, RES could improve •NO availability and decrease the endothelial dysfunction observed in diabetes. Preclinical studies have made it possible to identify molecular targets (SIRT-1, AMPK, Nrf2, NFκB…); however, there are limited human clinical trials, and difficulties in the interpretation of results arise from the use of high-dose RES supplements in research studies, whereas low RES concentrations are present in red wine. The discussions on potential beneficial effects of RES in CVDs (atherosclerosis, hypertension, stroke, myocardial infarction, heart failure) should compare the results of preclinical studies with those of clinical trials.
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Affiliation(s)
- Dominique Bonnefont-Rousselot
- Department of Biochemistry, Faculty of Pharmacy, Paris Descartes University, Sorbonne Paris Cité, Paris 75006, France.
- Department of Metabolic Biochemistry, Pitié-Salpêtrière-Charles Foix Hospital (AP-HP), Paris 75013, France.
- Inserm UMR_S 1166 ICAN, UPMC, La Pitié Hospital, Paris 75013, France.
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Wu Y, Zhang JJ, Li TB, Liu WQ, Li LS, Luo XJ, Jiang JL, Ma QL, Yang ZC, Peng J. Phosphorylation of Nonmuscle Myosin Light Chain Promotes Endothelial Injury in Hyperlipidemic Rats Through a Mechanism Involving Downregulation of Dimethylarginine Dimethylaminohydrolase 2. J Cardiovasc Pharmacol Ther 2016; 21:536-548. [PMID: 26911182 DOI: 10.1177/1074248416634465] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 12/21/2015] [Indexed: 12/11/2022]
Abstract
Suppression of dimethylarginine dimethylaminohydrolase (DDAH) activation is related to endothelial dysfunction in hyperlipidemia, and nonmuscle myosin regulatory light chain (nmMLC20) has been show to exert transcriptional function in regulation of gene expression. This study aims to explore whether the suppression of DDAH activation promotes endothelial injury under the condition of hyperlipidemia and whether nmMLC20 can regulate DDAH expression in a phosphorylation-dependent manner. The rats were fed with high-fat diet for 8 weeks to establish a hyperlipidemic model, which showed an increase in plasma lipids and endothelial injury, accompanied by an elevation in myosin light chain kinase (MLCK) activity, phosphorylated nmMLC20 (p-nmMLC20) level, and asymmetric dimethylarginine (ADMA) content as well as a reduction in DDAH2 expression, DDAH activity, and nitric oxide (NO) content. Next, human umbilical vein endothelial cells (HUVECs) were incubated with oxidized low-density lipoprotein (ox-LDL; 100 μg/mL) for 24 hours to establish a cellular injury model in vitro. Consistent with the finding in vivo, ox-LDL induced HUVECs injury (apoptosis and necrosis) concomitant with an increase in MLCK activity, p-nmMLC20 level (in total or nuclear proteins), and ADMA content as well as a reduction in DDAH2 expression, DDAH activity, and NO content; these phenomena were attenuated by MLCK inhibitor. Either in hyperlipidemic rats or in ox-LDL-treated HUVECs, there was not significant change in DDAH1 expression. Based on these observations, we conclude that the suppression of DDAH2 expression might account for, at least partially, the vascular endothelial dysfunction in hyperlipidemia, and nmMLC20 plays a role in suppression of DDAH2 expression in a phosphorylation-dependent manner.
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Affiliation(s)
- Yan Wu
- Department of Pharmacology, School of Pharmaceutical Sciences, Central South University, Changsha, China
| | - Jie-Jie Zhang
- Department of Pharmacology, School of Pharmaceutical Sciences, Central South University, Changsha, China
| | - Ting-Bo Li
- Department of Pharmacology, School of Pharmaceutical Sciences, Central South University, Changsha, China
| | - Wei-Qi Liu
- Department of Cardiovascular Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Lian-Sheng Li
- Department of Pharmacology, School of Pharmaceutical Sciences, Central South University, Changsha, China
| | - Xiu-Ju Luo
- Department of Laboratory Medicine, Xiangya School of Medicine, Central South University, Changsha, China
| | - Jun-Lin Jiang
- Department of Pharmacology, School of Pharmaceutical Sciences, Central South University, Changsha, China Hunan Provincial Key Laboratory of Cardiovascular Research, School of Pharmaceutical Sciences, Central South University, Changsha, China
| | - Qi-Lin Ma
- Department of Cardiovascular Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Zhi-Chun Yang
- Department of Pharmacology, School of Pharmaceutical Sciences, Central South University, Changsha, China Hunan Provincial Key Laboratory of Cardiovascular Research, School of Pharmaceutical Sciences, Central South University, Changsha, China
| | - Jun Peng
- Department of Pharmacology, School of Pharmaceutical Sciences, Central South University, Changsha, China Hunan Provincial Key Laboratory of Cardiovascular Research, School of Pharmaceutical Sciences, Central South University, Changsha, China
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Chen JM, Guo J, Wei CD, Wang CF, Luo HC, Wei YS, Lan Y. The association of CD40 polymorphisms with CD40 serum levels and risk of systemic lupus erythematosus. BMC Genet 2015; 16:121. [PMID: 26474561 PMCID: PMC4608213 DOI: 10.1186/s12863-015-0279-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 10/09/2015] [Indexed: 12/13/2022] Open
Abstract
Background Current evidence shows that the CD40–CD40 ligand (CD40–CD40L) system plays a crucial role in the development, progression and outcome of systemic lupus erythematosus (SLE). The aim of this study was to investigate whether a CD40 gene single nucleotide polymorphism (SNP) is associated with SLE and CD40 expression in the Chinese population. We included controls (n = 220) and patients with either SLE (n =205) in the study. Methods The gene polymorphism was measured using Snapshot SNP genotyping assays and confirmed by sequencing. We analyzed three single nucleotide polymorphisms of CD40 gene rs1883832C/T, rs1569723A/C and rs4810485G/T in 205 patients with SLE and 220 age-and sex-matched controls. Soluble CD40 (sCD40) levels were measured by ELISA. Results There were significant differences in the genotype and allele frequencies of CD40 gene rs1883832C/T polymorphism between the group of patients with SLE and the control group (P < 0.05). sCD40 levels were increased in patients with SLE compared with controls (P < 0.01). Moreover, genotypes carrying the CD40 rs1883832 C/T variant allele were associated with increased CD40 levels compared to the homozygous wild-type genotype in patients with SLE. The rs1883832C/T polymorphism of CD40 and its sCD40 levels were associated with SLE in the Chinese population. Conclusions Our results suggest that CD40 gene may play a role in the development of SLE in the Chinese population.
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Affiliation(s)
- Jian-Ming Chen
- Department of Laboratory Medicine, Affiliated hospital of Youjiang Medical University for Nationalities, Baise, 533000, Guangxi, China.
| | - Jing Guo
- Department of Dermatology, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, Guangxi, China.
| | - Chuan-Dong Wei
- Department of Laboratory Medicine, Affiliated hospital of Youjiang Medical University for Nationalities, Baise, 533000, Guangxi, China.
| | - Chun-Fang Wang
- Department of Laboratory Medicine, Affiliated hospital of Youjiang Medical University for Nationalities, Baise, 533000, Guangxi, China.
| | - Hong-Cheng Luo
- Department of Laboratory Medicine, Affiliated hospital of Youjiang Medical University for Nationalities, Baise, 533000, Guangxi, China.
| | - Ye-Sheng Wei
- Department of Laboratory Medicine, Affiliated hospital of Youjiang Medical University for Nationalities, Baise, 533000, Guangxi, China.
| | - Yan Lan
- Department of Dermatology, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, Guangxi, China.
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Liu SY, Yuan Q, Li XH, Hu CP, Hu R, Zhang GG, Li D, Li YJ. Role of vascular peroxidase 1 in senescence of endothelial cells in diabetes rats. Int J Cardiol 2015; 197:182-91. [DOI: 10.1016/j.ijcard.2015.06.098] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2015] [Revised: 06/06/2015] [Accepted: 06/23/2015] [Indexed: 01/22/2023]
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Szewieczek J, Francuz T, Dulawa J, Legierska K, Hornik B, Włodarczyk I, Janusz-Jenczeń M, Batko-Szwaczka A. Functional measures, inflammatory markers and endothelin-1 as predictors of 360-day survival in centenarians. AGE (DORDRECHT, NETHERLANDS) 2015; 37:85. [PMID: 26289439 PMCID: PMC5005827 DOI: 10.1007/s11357-015-9822-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Accepted: 07/28/2015] [Indexed: 05/16/2023]
Abstract
Centenarians represent a rapidly growing population. To better characterize this specific age group, we have performed a cross-sectional study to observe associations between functional measures and a range of biochemical markers, including inflammatory markers and their significance as predictors of 360-day survival. Medical history and physical and functional assessment (Mini-Mental State Examination (MMSE), Katz Index (activities of daily living, ADL) and Barthel Index (Barthel Index) of Activities of Daily Living, and Lawton Instrumental Activities of Daily Living Scale (Lawton IADL)) were conducted on 86 101.9 ± 1.2-year-old (mean ± SD) subjects (70 women, 16 men). Blood tests were performed on 84 subjects of whom 43 also had extended biomarker assessment. As a reference group 30 51.8 ± 5.0-year old healthy subjects (20 women, 10 men) were recruited. The centenarians received follow-up phone calls. Fifty-two centenarians (60 %) survived ≥360 days. Longer survival was associated with higher MMSE (hazard ratio, HR = 0.934, 95 % confidence interval (CI) 0.896-0.975, P = .002), ADL (HR = 0.840, 95 % CI 0.716-0.985, P = .032), Barthel Index (HR = 0.988, 95 % CI 0.977-0.999, P = .026), and albumin level (HR .926, 95 % CI 0.870-0.986, P .016) and with lower white blood cell (WBC) (HR = 1.161, 95 % CI 1.059-1.273, P = .001), C-reactive protein (CRP) (HR = 1.032, 95 % CI 1.014-1.050, P < .001), IL-6 (HR = 1.182, 95 % CI 1.047-1.335, P = .007), and endothelin-1 (ET-1) level (HR = 3.711, 95 % CI 1.233-11.169, P = .020). Centenarians had higher 360-day survival probability with MMSE ≥13 (P < .001), ADL ≥1 (P < .001), Barthel Index ≥15 (P < .001), Lawton IADL ≥10 points (P = .009), WBC <8.3 G/L (P = .039), CRP <10 mg/L (P < .001), IL-6 <6 pg/mL (P .002), and ET-1 <1.1 pg/mL (P .007). Our results indicate that functional measures, inflammatory markers, and endothelin-1 are predictors of 360-day survival in centenarians.
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Affiliation(s)
- Jan Szewieczek
- Department of Geriatrics, School of Health Sciences in Katowice, SUM, SPSK NR 7 SUM GCM, ul. Ziolowa 45/47, 40-635, Katowice, Poland,
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Zhang M, Liu D, Li S, Chang L, Zhang Y, Liu R, Sun F, Duan W, Du W, Wu Y, Zhao T, Xu C, Lu Y. Bone marrow mesenchymal stem cell transplantation retards the natural senescence of rat hearts. Stem Cells Transl Med 2015; 4:494-502. [PMID: 25855590 DOI: 10.5966/sctm.2014-0206] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Accepted: 02/02/2015] [Indexed: 11/16/2022] Open
Abstract
Bone marrow mesenchymal stem cells (BMSCs) have been shown to offer a wide variety of cellular functions including the protective effects on damaged hearts. Here we investigated the antiaging properties of BMSCs and the underlying mechanism in a cellular model of cardiomyocyte senescence and a rat model of aging hearts. Neonatal rat ventricular cells (NRVCs) and BMSCs were cocultured in the same dish with a semipermeable membrane to separate the two populations. Monocultured NRVCs displayed the senescence-associated phenotypes, characterized by an increase in the number of β-galactosidase-positive cells and decreases in the degradation and disappearance of cellular organelles in a time-dependent manner. The levels of reactive oxygen species and malondialdehyde were elevated, whereas the activities of antioxidant enzymes superoxide dismutase and glutathione peroxidase were decreased, along with upregulation of p53, p21(Cip1/Waf1), and p16(INK4a) in the aging cardiomyocytes. These deleterious alterations were abrogated in aging NRVCs cocultured with BMSCs. Qualitatively, the same senescent phenotypes were consistently observed in aging rat hearts. Notably, BMSC transplantation significantly prevented these detrimental alterations and improved the impaired cardiac function in the aging rats. In summary, BMSCs possess strong antisenescence action on the aging NRVCs and hearts and can improve cardiac function after transplantation in aging rats. The present study, therefore, provides an alternative approach for the treatment of heart failure in the elderly population.
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Affiliation(s)
- Mingyu Zhang
- Department of Pharmacology and Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Harbin Medical University, Harbin, Heilongjiang Province, People's Republic of China
| | - Di Liu
- Department of Pharmacology and Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Harbin Medical University, Harbin, Heilongjiang Province, People's Republic of China
| | - Shuang Li
- Department of Pharmacology and Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Harbin Medical University, Harbin, Heilongjiang Province, People's Republic of China
| | - Lingling Chang
- Department of Pharmacology and Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Harbin Medical University, Harbin, Heilongjiang Province, People's Republic of China
| | - Yu Zhang
- Department of Pharmacology and Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Harbin Medical University, Harbin, Heilongjiang Province, People's Republic of China
| | - Ruixue Liu
- Department of Pharmacology and Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Harbin Medical University, Harbin, Heilongjiang Province, People's Republic of China
| | - Fei Sun
- Department of Pharmacology and Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Harbin Medical University, Harbin, Heilongjiang Province, People's Republic of China
| | - Wenqi Duan
- Department of Pharmacology and Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Harbin Medical University, Harbin, Heilongjiang Province, People's Republic of China
| | - Weijie Du
- Department of Pharmacology and Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Harbin Medical University, Harbin, Heilongjiang Province, People's Republic of China
| | - Yanping Wu
- Department of Pharmacology and Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Harbin Medical University, Harbin, Heilongjiang Province, People's Republic of China
| | - Tianyang Zhao
- Department of Pharmacology and Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Harbin Medical University, Harbin, Heilongjiang Province, People's Republic of China
| | - Chaoqian Xu
- Department of Pharmacology and Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Harbin Medical University, Harbin, Heilongjiang Province, People's Republic of China
| | - Yanjie Lu
- Department of Pharmacology and Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Harbin Medical University, Harbin, Heilongjiang Province, People's Republic of China
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Yuan Q, Hu CP, Gong ZC, Bai YP, Liu SY, Li YJ, Jiang JL. Accelerated onset of senescence of endothelial progenitor cells in patients with type 2 diabetes mellitus: Role of dimethylarginine dimethylaminohydrolase 2 and asymmetric dimethylarginine. Biochem Biophys Res Commun 2015; 458:869-76. [DOI: 10.1016/j.bbrc.2015.02.050] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 02/10/2015] [Indexed: 11/17/2022]
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Modulators of cellular senescence: mechanisms, promises, and challenges from in vitro studies with dietary bioactive compounds. Nutr Res 2014; 34:1017-35. [DOI: 10.1016/j.nutres.2014.02.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Revised: 02/24/2014] [Accepted: 02/26/2014] [Indexed: 12/11/2022]
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Ma Y, Bai XY, Du X, Fu B, Chen X. NaDC3 Induces Premature Cellular Senescence by Promoting Transport of Krebs Cycle Intermediates, Increasing NADH, and Exacerbating Oxidative Damage. J Gerontol A Biol Sci Med Sci 2014; 71:1-12. [PMID: 25384549 DOI: 10.1093/gerona/glu198] [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: 10/03/2014] [Accepted: 10/05/2014] [Indexed: 11/12/2022] Open
Abstract
High-affinity sodium-dependent dicarboxylate cotransporter 3 (NaDC3) is a key metabolism-regulating membrane protein responsible for transport of Krebs cycle intermediates. NaDC3 is upregulated as organs age, but knowledge regarding the underlying mechanisms by which NaDC3 modulates mammalian aging is limited. In this study, we showed that NaDC3 overexpression accelerated cellular senescence in young human diploid cells (MRC-5 and WI-38) and primary renal tubular cells, leading to cell cycle arrest in G1 phase and increased expression of senescent biomarkers, senescence-associated β-galactosidase and p16. Intracellular levels of reactive oxygen species, 8-hydroxy-2'-deoxyguanosine, malondialdehyde, and carbonyl were significantly enhanced, and activities of respiratory complexes I and III and ATP level were significantly decreased in NaDC3-infected cells. Stressful premature senescent phenotypes induced by NaDC3 were markedly ameliorated via treatment with the antioxidants Tiron and Tempol. High expression of NaDC3 caused a prominent increase in intracellular levels of Krebs cycle intermediates and NADH. Exogenous NADH and NAD(+) may aggravate and attenuate the aging phenotypes induced by NaDC3, respectively. These results suggest that NaDC3 can induce premature cellular senescence by promoting the transport of Krebs cycle intermediates, increasing generation of NADH and reactive oxygen species and leading to oxidative damage. Our results clarify the aging signaling pathway regulated by NaDC3.
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Affiliation(s)
- Yuxiang Ma
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China. Department of Internal Medicine, Beijing Chuiyangliu Hospital, China
| | - Xue-Yuan Bai
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China
| | - Xuan Du
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China
| | - Bo Fu
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China
| | - Xiangmei Chen
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China
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Resveratrol and endothelial nitric oxide. Molecules 2014; 19:16102-21. [PMID: 25302702 PMCID: PMC6270738 DOI: 10.3390/molecules191016102] [Citation(s) in RCA: 106] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 09/21/2014] [Accepted: 09/25/2014] [Indexed: 02/07/2023] Open
Abstract
Nitric oxide (NO) derived from the endothelial NO synthase (eNOS) has antihypertensive, antithrombotic, anti-atherosclerotic and antiobesogenic properties. Resveratrol is a polyphenol phytoalexin with multiple cardiovascular and metabolic effects. Part of the beneficial effects of resveratrol are mediated by eNOS. Resveratrol stimulates NO production from eNOS by a number of mechanisms, including upregulation of eNOS expression, stimulation of eNOS enzymatic activity and reversal of eNOS uncoupling. In addition, by reducing oxidative stress, resveratrol prevents oxidative NO inactivation by superoxide thereby enhancing NO bioavailability. Molecular pathways underlying these effects of resveratrol involve SIRT1, AMPK, Nrf2 and estrogen receptors.
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Yuan Q, Bai YP, Shi RZ, Liu SY, Chen XM, Chen L, Li YJ, Hu CP. Regulation of endothelial progenitor cell differentiation and function by dimethylarginine dimethylaminohydrolase 2 in an asymmetric dimethylarginine-independent manner. Cell Biol Int 2014; 38:1013-22. [DOI: 10.1002/cbin.10288] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Accepted: 03/20/2014] [Indexed: 11/08/2022]
Affiliation(s)
- Qiong Yuan
- Department of Pharmacology; School of Pharmaceutical Sciences; Central South University; Changsha 410078 China
- Department of Pharmacology; Medical College; Wuhan University of Science and Technology; Wuhan 430081 China
| | - Yong-Ping Bai
- Department of Geriatric Medicine; Xiangya Hospital; Central South University; Changsha 410008 China
| | - Rui-Zheng Shi
- Department of Cardiovascular Medicine; Xiangya Hospital; Central South University; Changsha 410008 China
| | - Si-Yu Liu
- Department of Pharmacology; School of Pharmaceutical Sciences; Central South University; Changsha 410078 China
| | - Xu-Meng Chen
- Department of Pharmacology; School of Pharmaceutical Sciences; Central South University; Changsha 410078 China
| | - Lei Chen
- Department of Pharmacology; School of Pharmaceutical Sciences; Central South University; Changsha 410078 China
| | - Yuan-Jian Li
- Department of Pharmacology; School of Pharmaceutical Sciences; Central South University; Changsha 410078 China
| | - Chang-Ping Hu
- Department of Pharmacology; School of Pharmaceutical Sciences; Central South University; Changsha 410078 China
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Brazilin ameliorates high glucose-induced vascular inflammation via inhibiting ROS and CAMs production in human umbilical vein endothelial cells. BIOMED RESEARCH INTERNATIONAL 2014; 2014:403703. [PMID: 24716195 PMCID: PMC3955648 DOI: 10.1155/2014/403703] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Revised: 12/04/2013] [Accepted: 12/05/2013] [Indexed: 12/17/2022]
Abstract
Vascular inflammatory process has been suggested to play a key role in the initiation and progression of atherosclerosis, a major complication of diabetes mellitus. Recent studies have shown that brazilin exhibits antihepatotoxic, antiplatelet, cancer preventive, or anti-inflammatory properties. Thus, we investigated whether brazilin suppresses vascular inflammatory process induced by high glucose (HG) in cultured human umbilical vein endothelial cells (HUVEC). HG induced nitrite production, lipid peroxidation, and intracellular reactive oxygen species formation in HUVEC cells, which was reversed by brazilin. Western blot analysis revealed that brazilin markedly inhibited HG-induced phosphorylation of endothelial nitric oxide synthase. Besides, we investigated the effects of brazilin on the MAPK signal transduction pathway because MAPK families are associated with vascular inflammation under stress. Brazilin blocked HG-induced phosphorylation of extracellular signal-regulated kinase and transcription factor NF-κB. Furthermore, brazilin concentration-dependently attenuated cell adhesion molecules (ICAM-1 and VCAM-1) expression induced by various concentrations of HG in HUVEC. Taken together, the present data suggested that brazilin could suppress high glucose-induced vascular inflammatory process, which may be closely related with the inhibition of oxidative stress, CAMs expression, and NF-κB activation in HUVEC. Our findings may highlight a new therapeutic intervention for the prevention of vascular diseases.
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Servillo L, D'Onofrio N, Longobardi L, Sirangelo I, Giovane A, Cautela D, Castaldo D, Giordano A, Balestrieri ML. Stachydrine ameliorates high-glucose induced endothelial cell senescence and SIRT1 downregulation. J Cell Biochem 2013; 114:2522-30. [DOI: 10.1002/jcb.24598] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Accepted: 05/14/2013] [Indexed: 01/13/2023]
Affiliation(s)
- Luigi Servillo
- Department of Biochemistry; Biophysics and General Pathology; Second University of Naples; Naples; Italy
| | - Nunzia D'Onofrio
- Department of Biochemistry; Biophysics and General Pathology; Second University of Naples; Naples; Italy
| | - Lara Longobardi
- Department of Pediatrics; University of North Carolina at Chapel Hill; Chapel Hill; North Carolina; 27599
| | - Ivana Sirangelo
- Department of Biochemistry; Biophysics and General Pathology; Second University of Naples; Naples; Italy
| | - Alfonso Giovane
- Department of Biochemistry; Biophysics and General Pathology; Second University of Naples; Naples; Italy
| | - Domenico Cautela
- Stazione Sperimentale per le Industrie delle Essenze e dei derivati dagli Agrumi (SSEA); Azienda Speciale della Camera di Commercio di Reggio Calabria; RC; Italy
| | - Domenico Castaldo
- Stazione Sperimentale per le Industrie delle Essenze e dei derivati dagli Agrumi (SSEA); Azienda Speciale della Camera di Commercio di Reggio Calabria; RC; Italy
| | | | - Maria Luisa Balestrieri
- Department of Biochemistry; Biophysics and General Pathology; Second University of Naples; Naples; Italy
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Hasegawa K, Wakino S, Kimoto M, Minakuchi H, Fujimura K, Hosoya K, Komatsu M, Kaneko Y, Kanda T, Tokuyama H, Hayashi K, Itoh H. The hydrolase DDAH2 enhances pancreatic insulin secretion by transcriptional regulation of secretagogin through a Sirt1-dependent mechanism in mice. FASEB J 2013; 27:2301-15. [PMID: 23430976 DOI: 10.1096/fj.12-226092] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The role of dimethylarginine dimethylaminohydrolase 2 (DDAH2) in glucose metabolism is unknown. Here, we generated DDAH2 transgenic (Tg) mice. These mice had lower plasma glucose levels (60 min: 298±32 vs. 418±35 mg/dl; 120 min: 205±15 vs. 284±20 mg/dl) and higher insulin levels (15 min: 2.1±0.2 vs. 1.5±0.1 ng/ml; 30 min: 1.8±0.1 vs. 1.5±0.1 ng/ml) during intraperitoneal glucose tolerance tests when fed a high-fat diet (HFD) compared with HFD-fed wild-type (WT) mice. Glucose-stimulated insulin secretion (GSIS) was increased in Tg islets by 33%. Pancreatic asymmetrical dimethylarginine, nitric oxide, and oxidative stress levels were not correlated with improvements in insulin secretion in Tg mice. Secretagogin, an insulin vesicle docking protein, was up-regulated by 2.7-fold in Tg mice and in pancreatic MIN-6 cells overexpressing DDAH2. GSIS in MIN-6 cells was dependent on DDAH2-induced secretagogin expression. Pancreatic Sirt1, DDAH2, and secretagogin were down-regulated in HFD-fed WT mice by 70, 75, and 85%, respectively. Overexpression of Sirt1 overexpression by 3.9-fold increased DDAH2 and secretagogin expression in MIN-6 cells by 3.2- and 2.5-fold, respectively. DDAH2 overexpression improved GSIS in pancreas-specific Sirt1-deficient mice. In summary, the Sirt1/DDAH2/secretagogin pathway is a novel regulator of GSIS.
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Affiliation(s)
- Kazuhiro Hasegawa
- Department of Internal Medicine, School of Medicine, Keio University, Tokyo, Japan
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Chen XM, Hu CP, Li YJ, Jiang JL. Cardiovascular risk in autoimmune disorders: role of asymmetric dimethylarginine. Eur J Pharmacol 2012; 696:5-11. [PMID: 23026371 DOI: 10.1016/j.ejphar.2012.09.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2012] [Revised: 09/04/2012] [Accepted: 09/17/2012] [Indexed: 02/08/2023]
Abstract
Mounting evidence indicates that cardiovascular events are a main cause of excessive mortality of autoimmune disorders like type I diabetes mellitus and rheumatic diseases. Inflammation and endothelial dysfunction, independent predictors to cardiovascular disease, are hallmarks of autoimmunity. Asymmetric dimethylarginine (ADMA), an endogenous nitric oxide synthase inhibitor, can cause or contribute to the inflammatory syndrome and endothelial dysfunction. Recently, elevated ADMA levels have been demonstrated in many autoimmune diseases, suggesting that ADMA might play an important role for the associated manifestations of cardiovascular disease. In the review, we discuss the role of ADMA in the excessive cardiovascular morbidity and mortality associated with autoimmune diseases.
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Affiliation(s)
- Xu-Meng Chen
- Department of Pharmacology, School of Pharmaceutical Sciences, Central South University, Xiang-Ya Road #110, Changsha 410078, China
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Derosa G, D'Angelo A, Mugellini A, Pesce RM, Fogari E, Maffioli P. Evaluation of emerging biomarkers in cardiovascular risk stratification of hypertensive patients: a 2-year study. Curr Med Res Opin 2012; 28:1435-45. [PMID: 22852869 DOI: 10.1185/03007995.2012.717527] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To evaluate if there is a correlation between some new emerging biomarkers, such as lipoprotein(a) (Lp[a]), apo(a) isoform phenotyping, soluble advanced glycation end products (sRAGE), soluble CD40 ligand (sCD40L), serum myeloperoxidase (MPO), and cardiovascular risk stratification. RESEARCH DESIGN AND METHODS Three hundred patients were enrolled in this open-label, case-control design trial: 156 hypertensive patients and 144 healthy subjects as control group. Hypertensive patients were treated according to the latest ESH/ESC guidelines, until the desirable goal of systolic blood pressure (SBP)<140 mmHg, and diastolic blood pressure (DBP)<90 mmHg was reached. We evaluated at baseline and after 6, 12, 18, and 24 months: SBP, DBP, lipid profile, Lp(a), apo(a) isoform phenotyping, sRAGE, sCD40L, and MPO. RESULTS Hypertensive patients presented higher levels of blood pressure, Lp(a), sCD40L, and MPO and lower levels of sRAGE compared with controls. We observed a decrease of blood pressure, Lp(a), sCD40L, and MPO and an increase of sRAGE after anti-hypertensive treatment. Moreover we observed moderate, but statistically significant, correlations between blood pressure decrease and Lp(a), MPO, and sCD40L decrease and between blood pressure decrease and sRAGE increase. There was also a modest, positive correlation between low molecular weight apo(a) isoforms and hypertension. A limitation of this study is that we cannot exclude a role for lifestyle measures. Furthermore the studied markers seem to improve with blood pressure lowering treatment, but we do not have enough statistical power to definitely state which drug used has a specific action on the various variables measured. CONCLUSION Lp(a), sRAGE, MPO, sCD40L, and low molecular weight apo(a) isoforms are associated with hypertension and may represent an increased cardiovascular risk. Longer studies are needed to see if these parameters can be also used to predict specific complications linked to hypertension.
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Affiliation(s)
- G Derosa
- Department of Internal Medicine and Therapeutics, Fondazione IRCCS Policlinico San Matteo, University of Pavia, Pavia, Italy.
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El Assar M, Angulo J, Vallejo S, Peiró C, Sánchez-Ferrer CF, Rodríguez-Mañas L. Mechanisms involved in the aging-induced vascular dysfunction. Front Physiol 2012; 3:132. [PMID: 22783194 PMCID: PMC3361078 DOI: 10.3389/fphys.2012.00132] [Citation(s) in RCA: 136] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Accepted: 04/20/2012] [Indexed: 12/25/2022] Open
Abstract
Vascular aging is a key process determining health status of aged population. Aging is an independent cardiovascular risk factor associated to an impairment of endothelial function, which is a very early and important event leading to cardiovascular disease. Vascular aging, formerly being considered an immutable and inexorable risk factor, is now viewed as a target process for intervention in order to achieve a healthier old age. A further knowledge of the mechanisms underlying the age-related vascular dysfunction is required to design an adequate therapeutic strategy to prevent or restore this impairment of vascular functionality. Among the proposed mechanisms that contribute to age-dependent endothelial dysfunction, this review is focused on the following aspects occurring into the vascular wall: (1) the reduction of nitric oxide (NO) bioavailability, caused by diminished NO synthesis and/or by augmented NO scavenging due to oxidative stress, leading to peroxynitrite formation (ONOO(-)); (2) the possible sources involved in the enhancement of oxidative stress; (3) the increased activity of vasoconstrictor factors; and (4) the development of a low-grade pro-inflammatory environment. Synergisms and interactions between all these pathways are also analyzed. Finally, a brief summary of some cellular mechanisms related to endothelial cell senescence (including telomere and telomerase, stress-induced senescence, as well as sirtuins) are implemented, as they are likely involved in the age-dependent endothelial dysfunction, as well as in the lower vascular repairing capacity observed in the elderly. Prevention or reversion of those mechanisms leading to endothelial dysfunction through life style modifications or pharmacological interventions could markedly improve cardiovascular health in older people.
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Affiliation(s)
- Mariam El Assar
- Fundación para la Investigación Biomédica, Hospital Universitario de Getafe Madrid, Spain
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Li H, Xia N, Förstermann U. Cardiovascular effects and molecular targets of resveratrol. Nitric Oxide 2012; 26:102-10. [DOI: 10.1016/j.niox.2011.12.006] [Citation(s) in RCA: 221] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2011] [Revised: 12/11/2011] [Accepted: 12/21/2011] [Indexed: 11/29/2022]
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Antioxidant effects of resveratrol and other stilbene derivatives on oxidative stress and NO bioavailability: Potential benefits to cardiovascular diseases. Biochimie 2012; 94:269-76. [DOI: 10.1016/j.biochi.2011.11.001] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2011] [Accepted: 11/06/2011] [Indexed: 11/20/2022]
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Yuan Q, Chen L, Xiang DX, Li YJ, Hu CP. Effect of resveratrol derivative BTM-0512 on high glucose-induced dysfunction of endothelial cells: role of SIRT1. Can J Physiol Pharmacol 2011; 89:713-22. [PMID: 21905824 DOI: 10.1139/y11-069] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Hyperglycemia impairs the function of endothelial cells. Sirtuin 1 (SIRT1) is involved in regulating the function of endothelial cells. Resveratrol, a polyphenol found in many plant species, exerts protective effects on endothelial cells through activation of SIRT1. The aims of this work were to explore whether BTM-0512, a novel derivative of resveratrol, is able to exert beneficial effects on high glucose-induced dysfunction of endothelial cells through regulation of SIRT1. We found that high glucose significantly impaired the function of endothelial cells as shown by reduced tube formation, cell migration, and cell adhesion concomitantly with downregulation of mRNA expression of SIRT1 and vascular endothelial growth factor as well as increased tumor necrosis factor-α release and reactive oxygen species production. These effects of high glucose were inhibited by pretreatment with BTM-0512. The beneficial effects of BTM-0512 on high glucose-induced cell dysfunction were abolished by splitomicin, a specific inhibitor of SIRT1. The regulatory effects of BTM-0512 on high glucose-induced changes in vascular endothelial growth factor mRNA expression and tumor necrosis factor-α release were also abolished by splitomicin. The results suggest that BTM-0512 exerts beneficial effects on high glucose-induced endothelial cell dysfunction through regulation of the SIRT1 - reactive oxygen species - vascular endothelial growth factor - tumor necrosis factor-α pathway.
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Affiliation(s)
- Qiong Yuan
- Department of Pharmacology, School of Pharmaceutical Sciences, Central South University, Changsha 410078, P.R. China
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Guldiken S, Guldiken B, Demir M, Kabayel L, Ozkan H, Turgut N, Hunkar R, Kat S. Soluble CD40 ligand and prolactin levels in migraine patients during interictal period. J Headache Pain 2011; 12:355-60. [PMID: 21331754 PMCID: PMC3094677 DOI: 10.1007/s10194-011-0306-8] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2010] [Accepted: 01/25/2011] [Indexed: 12/01/2022] Open
Abstract
The relationship of migraine with cardiovascular diseases has been clarified by many studies, and currently, migraine is suggested to be a systematic vasculopathy. Inflammation, thrombosis and impaired vascular reactivity are the underlying pathophysiological mechanisms of the vasculopathy. In the present study, we aimed to investigate the relationship between prolactin levels and subclinical atherosclerosis risk factors such as soluble CD40 ligand (sCD40L) and high-sensitivity CRP (hsCRP) in migraine patients during interictal period. Fifty female migraine patients and age-matched 25 female control cases were enrolled in the study. Migraine diagnosis was settled according to the ICHD-II diagnostic criteria. A questionnaire was completed about the existence of vascular risk factors. Serum samples were used to measure sCD40L, hsCRP and prolactin levels. No difference was found between the prolactin levels of the migraine patients and the controls. The sCD40L levels were significantly higher in migraine patients (p < 0.001). High-sensitivity CRP levels showed no difference between the groups. There was no correlation between prolactin, sCD40L, and hs-CRP levels in migraine patients. We consider that the migraine patients are prone to subclinical atherosclerosis, but this tendency is independent of prolactin levels.
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Affiliation(s)
- Sibel Guldiken
- Department of Endocrinology, Trakya University Medical Faculty, Edirne, Turkey
| | - Baburhan Guldiken
- Department of Neurology, Trakya University Medical Faculty, 22100 Edirne, Turkey
| | - Muzaffer Demir
- Department of Hematology, Trakya University Medical Faculty, Edirne, Turkey
| | - Levent Kabayel
- Department of Neurology, Social Security Hospital of Edirne, Edirne, Turkey
| | - Hulya Ozkan
- Department of Neurology, Social Security Hospital of Edirne, Edirne, Turkey
| | - Nilda Turgut
- Department of Neurology, Trakya University Medical Faculty, 22100 Edirne, Turkey
| | - Remziye Hunkar
- Department of Neurology, Trakya University Medical Faculty, 22100 Edirne, Turkey
| | - Selahattin Kat
- Department of Neurology, Trakya University Medical Faculty, 22100 Edirne, Turkey
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Lin HS, Ho PC. Preclinical pharmacokinetic evaluation of resveratrol trimethyl ether in sprague-dawley rats: the impacts of aqueous solubility, dose escalation, food and repeated dosing on oral bioavailability. J Pharm Sci 2011; 100:4491-500. [PMID: 21520090 DOI: 10.1002/jps.22588] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2011] [Revised: 04/02/2011] [Accepted: 04/06/2011] [Indexed: 12/16/2022]
Abstract
Resveratrol trimethyl ether (trans-3,5,4'-trimethoxystilbene, RTE) is a naturally occurring and pharmacologically active resveratrol derivative. To evaluate its suitability as a drug candidate, a pharmacokinetic study was carried out in Sprague-Dawley rats with the emphasis to identify the impact of aqueous solubility, dose escalation, food, and repeated dosing on its oral bioavailability. Upon single intravenous administration (5 mg/kg), RTE displayed moderate clearance (35.5 ± 5.3 mL/min/kg) and a fairly long terminal elimination half-life (511 ± 136 min); dose escalation (5-20 mg/kg) did not cause nonlinear pharmacokinetics. When given orally in suspension (60 mg/kg), RTE was poorly absorbed with negligible bioavailability (< 1.5%), fasting further decreased its bioavailability (<1%). However, when administered in a solution formulated with randomly methylated-β-cyclodextrin (15 mg/kg), RTE was rapidly absorbed with good bioavailability (46.5 ± 4.8%). Dose escalation resulted in increased bioavailability (64.6 ± 8.0%) at the dose of 60 mg/kg. Repeated RTE dosing (7 daily oral doses) did not alter the clearance, terminal elimination half-life and bioavailability. In summary, the aqueous solubility of RTE was a barrier to oral absorption; repeated RTE administrations did not alter its pharmacokinetic profiles; as RTE possessed appropriate pharmacokinetic profiles, further investigation on RTE as a drug candidate is warranted.
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Affiliation(s)
- Hai-Shu Lin
- Department of Pharmacy, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260.
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Frombaum M, Therond P, Djelidi R, Beaudeux JL, Bonnefont-Rousselot D, Borderie D. Piceatannol is more effective than resveratrol in restoring endothelial cell dimethylarginine dimethylaminohydrolase expression and activity after high-glucose oxidative stress. Free Radic Res 2011; 45:293-302. [DOI: 10.3109/10715762.2010.527337] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Abstract
The polyphenolic natural product resveratrol (RV), best known for its occurrence in grape skin and red wine, is considered a candidate drug for prevention and treatment of cardiovascular diseases. This review aims to summarize the molecular effects of RV on endothelial cells, which line the inner walls of blood vessels and play a key role in the development of those diseases. We describe how RV enhances endothelial nitric oxide production, improves endothelial redox balance and inhibits endothelial activation in response to pro-inflammatory and metabolic insults. Furthermore, we summarize effects of RV on endothelial senescence, apoptosis, endothelin-1 release, and endothelial progenitor cell function. As many of RV's actions seem to be mediated by SIRT₁, different mechanistic possibilities how RV may lead to SIRT₁ activation are discussed.
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Affiliation(s)
- Christoph A Schmitt
- Wolfson Institute for Biomedical Research, University College London, United Kingdom
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