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Fu Y, Shen W, Bai H, Zhang Z, Cao Z, Liu Z, Yang C, Sun S, Wang L, Ling Y, Zhang Z, Cao H. Roles of Y-27632 on sheep sperm metabolism. J Anim Sci 2024; 102:skae020. [PMID: 38263469 PMCID: PMC10889731 DOI: 10.1093/jas/skae020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 01/20/2024] [Indexed: 01/25/2024] Open
Abstract
To investigate the effect of Y-27632 on low-temperature metabolism of sheep sperm, different concentrations of Y-27632 were added to sheep semen at 4 °C in this experiment to detect indicators such as sperm motility, plasma membrane, acrosome, antioxidant performance, mitochondrial membrane potential (MMP), and metabolomics. The results showed that the addition of 20 µM Y-27632 significantly increased sperm motility, plasma membrane integrity rate, acrosome integrity rate, antioxidant capacity, MMP level, significantly increased sperm adenosine triphosphate (ATP) and total cholesterol content, and significantly reduced sperm Ca2+ content. In metabolomics analysis, compared with the control group, the 20 µM Y-27632 group screened 20 differential metabolites, mainly involved in five metabolic pathways, with the most significant difference in Histidine metabolism (P = 0.001). The results confirmed that Y-27632 significantly improved the quality of sheep sperm preservation under low-temperature conditions.
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Affiliation(s)
- Yu Fu
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China
| | - Wenzheng Shen
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China
| | - Haiyu Bai
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China
| | - Zhiyu Zhang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China
| | - Zhikun Cao
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China
| | - Zibo Liu
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China
| | - Chao Yang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China
| | - Shixin Sun
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China
| | - Lei Wang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China
| | - Yinghui Ling
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China
- Anhui Province Key Laboratory of Local Livestock and Poultry Genetic Resource Conservation and Bio-breeding, Anhui Agricultural University, Hefei 230036, PR China
| | - Zijun Zhang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China
- Anhui Province Key Laboratory of Local Livestock and Poultry Genetic Resource Conservation and Bio-breeding, Anhui Agricultural University, Hefei 230036, PR China
| | - Hongguo Cao
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China
- Anhui Province Key Laboratory of Local Livestock and Poultry Genetic Resource Conservation and Bio-breeding, Anhui Agricultural University, Hefei 230036, PR China
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Liu J, He S, Ma B, Li X, Wang Y, Xiong J. TMT-based quantitative proteomic analysis revealed that FBLN2 and NPR3 are involved in the early osteogenic differentiation of mesenchymal stem cells (MSCs). Aging (Albany NY) 2023; 15:7637-7654. [PMID: 37543430 PMCID: PMC10457061 DOI: 10.18632/aging.204931] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 07/18/2023] [Indexed: 08/07/2023]
Abstract
The delicate equilibrium between osteoblast and adipocyte differentiation of MSCs is highly regulated. We screened for early-stage osteogenesis- or adipogenesis-based MSCs protein expression profiles using TMT-based quantitative proteomic analysis to identify novel participating molecules. Protein annotation, hierarchical clustering, functional stratification, and protein-protein association assessments were performed. Moreover, two upregulated proteins, namely, FBLN2 and NPR3, were validated to participate in the osteogenic differentiation process of MSCs. After that, we independently downregulated FBLN2 and NPR3 over seven days of osteogenic differentiation, and we performed quantitative proteomics analysis to determine how different proteins were regulated in knockdown vs. control cells. Based on gene ontology (GO) and network analyses, FBLN2 deficiency induced functional alterations associated with biological regulation and stimulus-response, whereas NPR3 deficiency induced functional alterations related to cellular and metabolic processes, and so on. These findings suggested that proteomics remains a useful method for an in-depth study of the MSCs differentiation process. This will assist in comprehensively evaluating its role in osteoporosis and provide additional approaches for identifying as-yet-unidentified effector molecules.
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Affiliation(s)
- Jianyun Liu
- Jiangxi Provincial Key Laboratory of Systems Biomedicine, Jiujiang University, Jiujiang 332005, China
| | - Shan He
- Jiangxi Provincial Key Laboratory of Systems Biomedicine, Jiujiang University, Jiujiang 332005, China
| | - Baicheng Ma
- Jiangxi Provincial Key Laboratory of Systems Biomedicine, Jiujiang University, Jiujiang 332005, China
| | - Xingnuan Li
- Jiangxi Provincial Key Laboratory of Systems Biomedicine, Jiujiang University, Jiujiang 332005, China
| | - Yaqin Wang
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Jianjun Xiong
- Jiangxi Provincial Key Laboratory of Systems Biomedicine, Jiujiang University, Jiujiang 332005, China
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Fu J, Hu X. Simvastatin alleviates epithelial‑mesenchymal transition and oxidative stress of high glucose‑induced lens epithelial cells in vitro by inhibiting RhoA/ROCK signaling. Exp Ther Med 2022; 23:420. [PMID: 35601076 PMCID: PMC9117960 DOI: 10.3892/etm.2022.11347] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 01/18/2022] [Indexed: 11/06/2022] Open
Abstract
Diabetic cataracts (DC) is one of the main causes of blindness among patients with diabetes mellitus. The aim of the present study was to examine the effect of simvastatin on lens epithelial cells in DC and the underlying mechanism. The viability of SRA01/04 cells treated with different concentrations of simvastatin was detected using a Cell Counting Kit-8 assay before and after high glucose (HG) treatment. The expression levels of E-cadherin, N-cadherin, Vimentin and α-smooth muscle actin (α-SMA), proteins associated with epithelial-mesenchymal transition (EMT), in addition to RhoA, Rho-associated kinases (ROCK)1 and ROCK2, proteins related to RhoA/ROCK signaling, were also measured in SRA01/04 cells treated with HG and simvastatin, with or without U46619, using western blot analysis. DCFH-DA dyes, superoxide dismutase (SOD) and glutathione (GSH)/glutathione disulfide (GSSG) kits were used to measure the levels of oxidative stress parameters in SRA01/04 cells treated with HG and simvastatin with or without U46619. The cell viability of SRA01/04 cells treated with simvastatin was found to be significantly elevated after HG treatment. The protein expression levels of E-cadherin were increased but those of N-cadherin, Vimentin and α-SMA decreased after HG and simvastatin treatment, and this was reversed by U46619. The levels of SOD and GSH-GSSG were found to be increased whereas reactive oxygen species levels were decreased, effects that were reversed by U46619. Additionally, the protein expression levels of RhoA, ROCK1 and ROCK2 were markedly decreased. These findings provided evidence that simvastatin increased HG-induced SRA01/04 cell viability and exerted inhibitory effects on EMT and oxidative stress that occurs during DC.
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Affiliation(s)
- Jianming Fu
- Department of Ophthalmology, The Second People's Hospital of Yueqing, Wenzhou, Zhejiang 325608, P.R. China
| | - Xiaojie Hu
- Department of Ophthalmology, Wenzhou People's Hospital, Wenzhou, Zhejiang 325000, P.R. China
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Chen H, Du J, Zhang S, Tong H, Zhang M. Ghrelin suppresses migration of macrophages via inhibition of ROCK2 under chronic intermittent hypoxia. J Int Med Res 2021; 48:300060520926065. [PMID: 32485129 PMCID: PMC7273871 DOI: 10.1177/0300060520926065] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Objectives Migration of macrophages and atherosclerosis result in various
diseases, including coronary heart disease. This study aimed to
clarify the roles that ghrelin and Rho-associated
coiled-coil-containing protein kinase 2 (ROCK2) play in
migration of macrophages under chronic intermittent hypoxia
(CIH). Methods A rat model of CIH was constructed and changes in ghrelin and ROCK2
protein expression were measured by western blot assay. The
migratory ability of macrophages was determined by the transwell
assay. Hematoxylin and eosin staining was applied to detect the
changes in intima-media thickness. Results We found that CIH enhanced migration of macrophages, and this
effect was attenuated by exogenous ghrelin. Additionally, the
facilitative effect of CIH on migration of macrophages was
strengthened or decreased by upregulation or downregulation of
ROCK2, respectively. This phenomenon indicated that ROCK2 was
involved in CIH-induced migration in macrophages. Furthermore,
western blot and transwell assays showed that ghrelin inhibited
CIH-induced migration via ROCK2 suppression in macrophages. Conclusions In summary, the present study shows that ghrelin inhibits
CIH-induced migration via ROCK2 suppression in macrophages. Our
research may help lead to identifying a new molecular mechanism
for targeted therapy of atherosclerosis and its associated
coronary artery diseases under intermittent hypoxia.
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Affiliation(s)
- Hong Chen
- Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning, China
| | - Jianfeng Du
- Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning, China
| | - Siying Zhang
- Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning, China
| | - Hao Tong
- China Medical University, Shenyang, China
| | - Man Zhang
- Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning, China
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Zhang X, Duan L, Zhang Y, Zhao H, Yang X, Zhang C. Correlation of Fibulin-2 expression with proliferation, migration and invasion of breast cancer cells. Oncol Lett 2020; 20:1945-1951. [PMID: 32724439 PMCID: PMC7377204 DOI: 10.3892/ol.2020.11747] [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: 12/03/2018] [Accepted: 02/04/2020] [Indexed: 12/31/2022] Open
Abstract
Expression level of Fibulin-2 gene in breast cancer cells was evaluated to explore the impact of Fibulin-2 gene on the proliferation, migration and invasion of breast cancer cells. MDA-MB-231, BT483, MCF-7 and SK-BR-3 breast cancer cells were cultured in vitro. Then, expression of Fibulin-2 in cells was upregulated and downregulated using ribonucleic acid interference (RNAi) and lentiviral transfection techniques, respectively. Thereafter, expression levels of Fibulin-2 messenger RNA (mRNA) and protein were measured via quantitative real-time reverse transcription-polymerase chain reaction and western blotting, respectively. Cell Counting Kit-8 assay was applied to detect the proliferation ability, and wound healing assay was performed to determine the effect of transfection on the metastatic capacity of cells. The influence of transfection on the invasive ability of breast cancer cells was detected through Transwell chamber assay. MDA-MB-231 and MCF-7 cells did not express Fibulin-2, while BT483 and SK-BR-3 cells expressed Fibulin-2. Expression of Fibulin-2 mRNA and protein in SK-BR-3 Fibulin-2 siRNA group was significantly lower than that in SK-BR-3 NC siRNA group 48 h after transfection (P<0.01), while the expression of Fibulin-2 mRNA and protein in MDA-MB-231 Fibulin-2 lentiviral transfection (LAP) group was significantly higher than that in MDA-MB-231 NC LAP group. Compared with the MDA-MB-231 NC LAP group, the cell proliferation, migration and invasion ability of MDA-MB-231 Fibulin-2 LAP group were weakened. The tumor volume and weight of the MDA-MB-231 Fibulin-2 LAP group were significantly lower than those of the MDA-MB-231 NC LAP group. Low expression of Fibulin-2 is able to promote proliferation, migration and invasion of breast cancer cells, and can reduce the rate of tumor growth in nude mice. Therefore, Fibulin-2 may be a potential therapeutic target and an indicator of prognosis for breast cancer.
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Affiliation(s)
- Xiliang Zhang
- Department of General Surgery, Navy General Hospital, Beijing 100048, P.R. China
| | - Lian Duan
- Department of Endocrinology, Peking Union Medical College Hospital, Beijing 100730, P.R. China
| | - Yuxing Zhang
- Department of General Surgery, Navy General Hospital, Beijing 100048, P.R. China
| | - Huibin Zhao
- Department of General Surgery, Navy General Hospital, Beijing 100048, P.R. China
| | - Xiaodong Yang
- Department of General Surgery, Navy General Hospital, Beijing 100048, P.R. China
| | - Chaojun Zhang
- Department of General Surgery, Navy General Hospital, Beijing 100048, P.R. China
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Ricci G, Ciccone MM, Giordano P, Cortese F. Statins: Pharmacokinetics, Pharmacodynamics and Cost-Effectiveness Analysis. Curr Vasc Pharmacol 2020; 17:213-221. [PMID: 29984667 DOI: 10.2174/1570161116666180706144824] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 01/22/2018] [Accepted: 01/23/2018] [Indexed: 11/22/2022]
Abstract
Cardiovascular diseases secondary to atherosclerosis are the primary causes of early death and disability worldwide and dyslipidaemia represents one of the most important modifiable risk factors. Among lipid abnormalities that define it, low-density lipoprotein cholesterol (LDL-C) is the primary target of therapy, since multiple randomized controlled trials have shown the positive impact of its reduction on atherosclerosis development. For their ability to lower LDL-C levels, statins are the most studied drugs in cardiovascular disease prevention, of proven utility in slowing the progression or even determining regression of atherosclerosis. In addition, they have ancillary proprieties, with positive effects on the mechanisms involved in the development of atherosclerosis and cardiovascular morbidity and mortality, the so-called "pleiotropic mechanisms". Although sharing the same mechanism of action, the different chemical and pharmacological characteristics of each kind of statins affect their absorption, bioavailability, plasma protein binding properties, excretion and solubility. In this overview, we analysed pharmacokinetic and pharmacodynamic mechanisms of this class of drugs, specifying the differences among the molecules, along with the economic aspects. Detailed knowledge of characteristics and differences of each kind of available statin could help the physician in the correct choice, based also on patient's clinical profile, of this essential tool with a demonstrated high cost-effectiveness both in primary than in the secondary prevention of cardiovascular disease.
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Affiliation(s)
- Gabriella Ricci
- Cardiovascular Diseases Section, "Monsignor Dimiccoli" Hospital, Barletta, Italy
| | - Marco Matteo Ciccone
- Cardiovascular Diseases Section, Department of Emergency and Organ Transplantation (DETO), University of Bari, Bari, Italy
| | - Paola Giordano
- Department of Biomedical Sciences and Human Oncology, University of Bari, Bari, Italy
| | - Francesca Cortese
- Cardiovascular Diseases Section, "Monsignor Dimiccoli" Hospital, Barletta, Italy
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Abstract
Fibulin-2, an extracellular matrix (ECM) protein expressed in normal epithelia, is a kind of fibulin which is associated with basement membranes (BM) and elastic ECM fibers. The role of fibulin-2 has been recognized as an oncogene. The upregulation of fibulin-2 correlates with cancer development and progression. Furthermore, the upregulation of fibulin has been detected in ovarian cancer and stomach adenocarcinoma. However, the downregulation of fibulin has been detected in different intestinal and respiratory tumor cells. Additional studies have revealed that the role of fibulin-2 in carcinogenesis is context dependent and is caused by the interaction of fibulin proteins such as cell surface receptors and other ECM proteins, including integrins and syndecans. The present study summarizes the role of fibulin in carcinogenesis and its underlying molecular mechanism.
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Affiliation(s)
- Huayue Zhang
- Department of Medical Oncology, Yueyang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China (mainland)
| | - Dengcheng Hui
- Department of Medical Oncology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China (mainland)
| | - Xiaoling Fu
- Department of Medical Oncology, Yueyang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China (mainland)
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Fatty acid desaturase 2 is up-regulated by the treatment with statin through geranylgeranyl pyrophosphate-dependent Rho kinase pathway in HepG2 cells. Sci Rep 2019; 9:10009. [PMID: 31292513 PMCID: PMC6620338 DOI: 10.1038/s41598-019-46461-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 06/28/2019] [Indexed: 12/18/2022] Open
Abstract
Statins have been reported to increase the plasma concentration of arachidonic acid (AA), an omega-6 long chain polyunsaturated fatty acid (LCPUFA) in several clinical studies indicating that statins affect the endogenous synthesis of LCUFAs. In the present study, we investigated the roles of the intrinsic mevalonate cascade and Rho-dependent pathway in LCPUFA synthesis, especially focusing on fatty acid desaturases (Fads) 2, using the human hepatocellular carcinoma cell line HepG2. Cell number and the activity of caspase-3 and 7 (caspase-3/7) was measured using a commercial kit. Gene expression was analyzed by quantitative real-time PCR. Protein expression was detected by Western blot analysis. Atorvastatin decreased cell viability and increased caspase-3/7 activity in a dose-dependent manner. At lower concentrations, atorvastatin stimulated both mRNA and protein expression of Fads2, and increased mRNA expression of FADS1 and ELVOL5. Both mevalonate and geranylgeranyl-pyrophosphate (GGPP), but not cholesterol, fully reversed atorvastatin-induced upregulation of Fads2, and mevalonate-effected reversal was inhibited by treatment with the Rho-associated protein kinase inhibitor Y-27632. These data clearly demonstrated that in human HepG2 cells, statins affect the endogenous synthesis of LCPUFAs by regulation of not only Fads2, but also Fads1 and Elovl5, through the GGPP-dependent Rho kinase pathway.
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An L, An S, Jia Z, Wang H, Yang Z, Xu C, Teng X, Wang J, Liu X, Cao Q, Wang S. Atorvastatin improves left ventricular remodeling and cardiac function in rats with congestive heart failure by inhibiting RhoA/Rho kinase-mediated endothelial nitric oxide synthase. Exp Ther Med 2018; 17:960-966. [PMID: 30651887 DOI: 10.3892/etm.2018.6976] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 11/03/2017] [Indexed: 11/06/2022] Open
Abstract
The aim of the present study was to investigate the effects and possible mechanisms of atorvastatin (Ato) against chronic heart failure (CHF). A rat model of CHF was established and cardiac functions were assessed using Echocardiography. The expression of RhoA/Rho kinase and endothelial nitric oxide synthase (eNOS) was assessed using western blotting and reverse transcription polymerase chain reaction following 4 weeks of treatment. The three groups assessed in the present study were as follows: The control group (no treatment), the Ato + isopropylnoradrenaline (ISO) group (subcutaneous injections of 340 mg/kg ISO + orally administered 50 mg/kg Ato dissolved in saline; administered once daily) and the ISO group (subcutaneous injections of 340 mg/kg ISO + orally administered with an equal volume of saline; administered once daily). Heart volume and weight in the ISO group were significantly increased compared with the control (C) group (P<0.01), whereas contractility was decreased. The results were reverse for the Ato group when compared with the ISO group (P<0.05). Levels of RhoA/Rho kinase protein and mRNA were significantly increased in the ISO group (P<0.01); however. The mRNA and protein expression of eNOS was significantly decreased (P<0.05) when compared with the C group. The mRNA and protein expression of RhoA/Rho kinase was significantly reduced in the Ato+ISO group compared with the ISO group (P<0.01), whereas the mRNA and protein expression of eNOS was significantly increased (P<0.05). RhoA protein expression was increased in the cytoplasm of the C group and on the cell membrane of the ISO group; however, in the Ato+ISO group, RhoA protein expression on the cell membrane was significantly downregulated when compared with the ISO group (P<0.05). The results of the present study suggest that Ato upregulates eNOS by inhibiting RhoA/Rho kinase overexpression in the myocardial tissue of rats with CHF, thus improving left ventricular remodeling and cardiac function.
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Affiliation(s)
- Liping An
- Department of Geriatric Cardiology, Heilongjiang Provincial Hospital, Harbin, Heilongjiang 150036, P.R. China
| | - Shoukuan An
- Department of Cardiac Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Zhuowen Jia
- Department of Geriatric Cardiology, Heilongjiang Provincial Hospital, Harbin, Heilongjiang 150036, P.R. China
| | - Huan Wang
- Department of Geriatric Cardiology, Heilongjiang Provincial Hospital, Harbin, Heilongjiang 150036, P.R. China
| | - Zhaoying Yang
- Department of Geriatric Cardiology, Heilongjiang Provincial Hospital, Harbin, Heilongjiang 150036, P.R. China
| | - Chaoxin Xu
- Department of Geriatric Cardiology, Heilongjiang Provincial Hospital, Harbin, Heilongjiang 150036, P.R. China
| | - Xiane Teng
- Department of Geriatric Cardiology, Heilongjiang Provincial Hospital, Harbin, Heilongjiang 150036, P.R. China
| | - Jipeng Wang
- Department of Geriatric Cardiology, Heilongjiang Provincial Hospital, Harbin, Heilongjiang 150036, P.R. China
| | - Xiaodong Liu
- Department of Geriatric Cardiology, Heilongjiang Provincial Hospital, Harbin, Heilongjiang 150036, P.R. China
| | - Qidong Cao
- Department of Geriatric Cardiology, Heilongjiang Provincial Hospital, Harbin, Heilongjiang 150036, P.R. China
| | - Sha Wang
- Department of Geriatric Cardiology, Heilongjiang Provincial Hospital, Harbin, Heilongjiang 150036, P.R. China
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Feuchtner G, Kerber J, Burghard P, Dichtl W, Friedrich G, Bonaros N, Plank F. The high-risk criteria low-attenuation plaque <60 HU and the napkin-ring sign are the most powerful predictors of MACE: a long-term follow-up study. Eur Heart J Cardiovasc Imaging 2018; 18:772-779. [PMID: 27502292 DOI: 10.1093/ehjci/jew167] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 07/16/2016] [Indexed: 01/14/2023] Open
Abstract
Aims To assess the prognostic value of coronary CT angiography (CTA) for prediction of major adverse cardiac events (MACE) over a long-term follow-up period. Methods and Results A total of 1469 low-to-intermediate-risk patients (65.9 years; 44.2% females) were included in our prospective cohort study. CTA was evaluated for (i) stenosis severity (minimal <10%; mild <50%; moderate 50-70%; severe >70%), (ii) plaque types (calcified, mixed dominantly calcified, mixed dominantly non-calcified, non-calcified), and (iii) high-risk plaque criteria [low-attenuation plaque (LAP) quantified by HU, napkin-ring (NR) sign, spotty calcification <3 mm, and remodelling index (RI)]. Over a follow-up of mean 7.8 years, MACE rate was 41 (2.8%) and 0% in patients with negative CTA. MACE rate increased along with stenosis severity by CTA (from 1.3 to 7.8%) (P < 0.001) and was higher in T3/T4 plaques than in T2/T1 (7.8 vs. 1.9%; P < 0.0001). LAP density was lower (35.2 HU ± 32 vs. 108.8 HU ± 53) (P < 0.001) and both NR-sign prevalence with n = 26 (63.4%) vs. n = 40 (28%) and LAP <30, <60, and <90 HU prevalence with 46.3-78% vs. 2.4-7% were higher in the MACE group (P < 0.001). On univariate and unadjusted multivariable proportional Hazards model, LAP <60 HU and NR were the strongest MACE predictors (HR 4.96; 95% CI: 2.0-12.2 and HR 3.85; 95% CI: 1.7-8.6) (P < 0.0001), while spotty calcification (HR 2.2; 95% CI: 1.1-4.3, P < 0.001), stenosis severity, and plaque type (HR 1.5; 95% CI: 1.1-2.3 and HR 1.7; 95% CI: 1.1-2.6) (P < 0.001) were less powerful. After adjusting for risk factors, CTA stenosis severity, and plaque type, LAP <60 HU and the NR sign remained significant (P < 0.001), while the effect of NR sign was even enhancing. HRP criteria were independent predictors from other risk factors. Conclusion Prognosis is excellent over a long-term period if CTA is negative and worsening with an increasing non-calcifying plaque component. LAP <60 HU and NR sign are the most powerful MACE predictors.
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Affiliation(s)
- Gudrun Feuchtner
- Department of Radiology, Innsbruck Medical University,Anichstr. 35, A-6020 Innsbruck, Austria
| | - Johannes Kerber
- Department of Radiology, Innsbruck Medical University,Anichstr. 35, A-6020 Innsbruck, Austria
| | - Philipp Burghard
- Department of Radiology, Innsbruck Medical University,Anichstr. 35, A-6020 Innsbruck, Austria
| | - Wolfgang Dichtl
- Department of Internal Medicine III-Cardiology, Innsbruck Medical University, Innsbruck, Austria
| | - Guy Friedrich
- Department of Internal Medicine III-Cardiology, Innsbruck Medical University, Innsbruck, Austria
| | - Nikolaos Bonaros
- Department of Cardiac Surgery, Innsbruck Medical University, Innsbruck, Austria
| | - Fabian Plank
- Department of Radiology, Innsbruck Medical University, Anichstr. 35, A-6020 Innsbruck, Austria.,Department of Internal Medicine III-Cardiology, Innsbruck Medical University, Innsbruck, Austria
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Renal and hepatic effects following neonatal exposure to low doses of Bisphenol-A and 137Cs. Food Chem Toxicol 2018; 114:270-277. [PMID: 29477810 DOI: 10.1016/j.fct.2018.02.046] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 02/16/2018] [Accepted: 02/20/2018] [Indexed: 12/13/2022]
Abstract
137-Cesium (137Cs) is one of the most important distributed radionuclides after a nuclear accident. Humans are usually co-exposed to various environmental toxicants, being Bisphenol-A (BPA) one of them. Exposure to IR and BPA in early life is of major concern, due to the higher vulnerability of developing organs. We evaluate the renal and hepatic effects of low doses of ionizing radiation (IR) and BPA. Sixty male mice (C57BL/6J) were randomly assigned to six experimental groups (n=10) and received a single subcutaneous dose of 0.9% saline solution, 137Cs and/or BPA on postnatal day 10: control, BPA (25 μg/kgbw), Cs4000 (4000 Bq 137Cs/kgbw), Cs8000 (8000 Bq 137Cs/kgbw), BPA/Cs4000 and BPA/Cs8000. At the age of two months, urines (24h) and blood samples were collected from animals of each group to determine biochemical parameters. Finally, kidneys and liver were removed to quantify DNA damage (8-OHdG), as well as to determine CYP1A2 mRNA expression. Data suggest that both BPA and 137Cs induced renal and liver damage evidenced by oxidative stress. However, when there is a co-exposure, it seems that there are compensatory mechanisms that may reverse the damage induced by each toxic itself. Notwithstanding, more studies are necessary to better understand the synergistic mechanisms behind.
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Inulin from Jerusalem artichoke tubers alleviates hyperlipidemia and increases abundance of bifidobacteria in the intestines of hyperlipidemic mice. J Funct Foods 2018. [DOI: 10.1016/j.jff.2017.11.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
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Ishihara N, Suzuki S, Tanaka S, Watanabe Y, Nagayama D, Saiki A, Tanaka T, Tatsuno I. Atorvastatin increases Fads1, Fads2 and Elovl5 gene expression via the geranylgeranyl pyrophosphate-dependent Rho kinase pathway in 3T3-L1 cells. Mol Med Rep 2017; 16:4756-4762. [PMID: 28765914 PMCID: PMC5647059 DOI: 10.3892/mmr.2017.7141] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 06/21/2017] [Indexed: 01/29/2023] Open
Abstract
Numerous clinical studies have reported that statins increase the plasma concentration of arachidonic acid, which is an ω-6 long-chain polyunsaturated fatty acid (LCPUFA), and decrease the concentrations of eicosapentaenoic acid and docosahexaenoic acid, which are ω‑3 LCPUFAs. These findings indicate that statins may affect the endogenous synthesis of LCPUFAs, which is regulated by fatty acid desaturases (FADSs) and elongation of very long‑chain fatty acids proteins (ELOVLs). The present study aimed to investigate the roles of the intrinsic mevalonate cascade and Rho‑dependent pathway in statin‑induced regulation of these desaturases and elongases, as well as cell viability using mouse 3T3‑L1 cells. mRNA expression was analyzed by quantitative polymerase chain reaction. Treatment with atorvastatin decreased cell viability and increased the mRNA expression levels of Fads1, Fads2 and ELOVL fatty acid elongase 5 (Elovl5) in a dose‑dependent manner. Mevalonate and geranylgeranyl pyrophosphate (GGPP), but not cholesterol, fully reversed the atorvastatin‑induced downregulation of cell viability and upregulation of gene expression; however, mevalonate itself did not affect cell viability and gene expression. The Rho‑associated protein kinase inhibitor Y‑27632 inhibited the mevalonate‑ and GGPP‑mediated reversal of atorvastatin‑induced upregulation of Fads1, Fads2 and Elovl5. These findings indicated that statins may affect the endogenous synthesis of LCPUFAs by regulating Fads1, Fads2 and Elovl5 gene expression via the GGPP‑dependent Rho kinase pathway in mouse 3T3-L1 cells.
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Affiliation(s)
- Noriko Ishihara
- Center for Diabetes, Metabolism and Endocrinology, Toho University Sakura Medical Center, Sakura, Chiba 285‑8741, Japan
| | - Sawako Suzuki
- Department of Clinical Cell Biology, Graduate School of Medicine, Chiba University, Chiba, Chiba 260‑8670, Japan
| | - Shou Tanaka
- Center for Diabetes, Metabolism and Endocrinology, Toho University Sakura Medical Center, Sakura, Chiba 285‑8741, Japan
| | - Yasuhiro Watanabe
- Center for Diabetes, Metabolism and Endocrinology, Toho University Sakura Medical Center, Sakura, Chiba 285‑8741, Japan
| | - Daiji Nagayama
- Center for Diabetes, Metabolism and Endocrinology, Toho University Sakura Medical Center, Sakura, Chiba 285‑8741, Japan
| | - Atsuhito Saiki
- Center for Diabetes, Metabolism and Endocrinology, Toho University Sakura Medical Center, Sakura, Chiba 285‑8741, Japan
| | - Tomoaki Tanaka
- Department of Molecular Diagnosis, Graduate School of Medicine, Chiba University, Chiba, Chiba 260‑8670, Japan
| | - Ichiro Tatsuno
- Center for Diabetes, Metabolism and Endocrinology, Toho University Sakura Medical Center, Sakura, Chiba 285‑8741, Japan
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14
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Tarantino N, Santoro F, De Gennaro L, Correale M, Guastafierro F, Gaglione A, Di Biase M, Brunetti ND. Fenofibrate/simvastatin fixed-dose combination in the treatment of mixed dyslipidemia: safety, efficacy, and place in therapy. Vasc Health Risk Manag 2017; 13:29-41. [PMID: 28243111 PMCID: PMC5317328 DOI: 10.2147/vhrm.s95044] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Lipids disorder is the principal cause of atherosclerosis and may present with several forms, according to blood lipoprotein prevalence. One of the most common forms is combined dyslipidemia, characterized by high levels of triglycerides and low level of high-density lipoprotein. Single lipid-lowering drugs may have very selective effect on lipoproteins; hence, the need to use multiple therapy against dyslipidemia. However, the risk of toxicity is a concerning issue. In this review, the effect and safety of an approved combination therapy with simvastatin plus fenofibrate are described, with an analysis of pros and cons resulting from randomized multicenter trials, meta-analyses, animal models, and case reports as well.
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Affiliation(s)
| | - Francesco Santoro
- University of Foggia, Foggia, Italy
- Asklepios Klinik – St Georg, Hamburg, Germany
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15
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Ren T, Lin S, Wang Z, Shang A. Differential proteomics analysis of low- and high-grade of astrocytoma using iTRAQ quantification. Onco Targets Ther 2016; 9:5883-5895. [PMID: 27713642 PMCID: PMC5045242 DOI: 10.2147/ott.s111103] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Astrocytoma is one of the most common types of brain tumor, which is histologically and clinically classified into four grades (I–IV): I (pilocytic astrocytoma), II (diffuse astrocytoma), III (anaplastic astrocytoma), and IV (glioblastoma multiforme). A higher grade astrocytoma represents a worse prognosis and is more aggressive. In this study, we compared the differential proteome profile of astrocytoma from grades I to IV. The protein samples from clinical specimens of grades I, II, III, and IV astrocytoma were analyzed by two-dimensional liquid chromatography–tandem mass spectrometry and isobaric tags for relative and absolute quantitation and quantification. A total of 2,190 proteins were identified. Compared to grade I astrocytoma, 173 (12.4%), 304 (14%), and 462 (21.2%) proteins were aberrantly expressed in grades II, III, and IV, respectively. By bioinformatics analysis, the cell proliferation, invasion, and angiogenesis-related pathways increase from low- to high-grade of astrocytoma. Five differentially expressed proteins were validated by Western blot. Within them, matrix metalloproteinase-9 and metalloproteinase inhibitor 1 were upregulated in glioblastoma multiforme group; whereas fibulin-2 and -5 were downregulated in grade II/III/IV astrocytoma, and the negative expression was significantly associated with advanced clinical stage. Functional analysis showed that both fibulin-2 and -5 may exert an antitumor effect by inhibiting cell proliferation, in vitro migration/invasion in glioma cells. New molecular biomarkers are likely to be used for accurate classification of astrocytoma and likely to be the target for drug development.
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Affiliation(s)
- Tong Ren
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing
| | - Shide Lin
- Department of Spinal Cord Injury, Institute of Orthopedics and Traumatology of Chinese PLA, General Hospital of Jinan Military Area Command, Jinan
| | - Zhongfeng Wang
- State Key Laboratory of Medical Neurobiology, Shanghai Medical College, Fudan University, Shanghai
| | - Aijia Shang
- Department of Neurosurgery, General Hospital of Chinese People's Liberation Army of China, Beijing, People's Republic of China
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