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Genome-Wide Association Study Revealed the Effect of rs312715211 in ZNF652 Gene on Abdominal Fat Percentage of Chickens. BIOLOGY 2022; 11:biology11121849. [PMID: 36552358 PMCID: PMC9775298 DOI: 10.3390/biology11121849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 12/09/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022]
Abstract
Abdominal fat percentage (AFP) is an important economic trait in chickens. Intensive growth selection has led to the over-deposition of abdominal fat in chickens, but the genetic basis of AFP is not yet clear. Using 520 female individuals from selection and control lines of Jingxing yellow chicken, we investigated the genetic basis of AFP using a genome-wide association study (GWAS) and fixation indices (FST). A 0.15 MB region associated with AFP was located on chromosome 27 and included nine significant single nucleotide polymorphisms (SNPs), which could account for 3.34-5.58% of the phenotypic variation. In addition, the π value, genotype frequency, and dual-luciferase results identified SNP rs312715211 in the intron region of ZNF652 as the key variant. The wild genotype was associated with lower AFP and abdominal fat weight (AFW), but higher body weight (BW). Finally, annotated genes based on the top 1% SNPs were used to investigate the physiological function of ZNF652. Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis suggested that ZNF652 may reduce AFW and BW in broilers through the TGF-β1/SMad2/3 and MAPK/FoxO pathways via EGFR and TGFB1. Our findings elucidated the genetic basis of chicken AFP, rs312715211 on the ZNF652 gene, which can affect BW and AFW and was the key variant associated with AFP. These data provide new insight into the genetic mechanism underlying AF deposition in chickens and could be beneficial in breeding chickens for AF.
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Roshanravan N, Koche Ghazi MK, Ghaffari S, Naemi M, Alamdari NM, Shabestari AN, Mosharkesh E, Soleimanzadeh H, Sadeghi MT, Alipour S, Bastani S, Tarighat-Esfanjani A. Sodium selenite and Se-enriched yeast supplementation in atherosclerotic patients: Effects on the expression of pyroptosis-related genes and oxidative stress status. Nutr Metab Cardiovasc Dis 2022; 32:1528-1537. [PMID: 35365371 DOI: 10.1016/j.numecd.2022.02.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 02/05/2022] [Accepted: 02/21/2022] [Indexed: 11/15/2022]
Abstract
BACKGROUND AND AIMS Atherosclerosis as a chronic inflammatory disorder of the arterial wall is the main leading cause of the cardiovascular disease (CVD). Caspase-dependent pyroptosis plays a pivotal role in the pathogenesis of CVD. Selenium (Se) is an important component of the antioxidant defense and plays a crucial role in cardiovascular health. This study aimed to investigate the effects of daily consumption of sodium selenite and Se-enriched yeast on the expression of pyroptosis-related genes, and biomarkers of oxidative stress in patients with atherosclerosis. METHODS AND RESULTS In this randomized, double-blinded, placebo-controlled clinical trial, 60 patients with atherosclerosis were recruited. Participants received 200 μg/day of sodium selenite, Se-enriched yeast, or placebo for 8 following weeks. The pyroptosis-related genes' mRNA expression in peripheral blood mononuclear cells (PBMCs) was assessed before and after the intervention. Also, the levels of superoxide dismutase (SOD), malondialdehyde (MDA), nitric oxide (NO), and glutathione peroxidases (GPX) were measured at baseline and following the intervention. Following sodium selenite and Se-enriched yeast supplementation, the relative expression levels of TLR4, ASC, NLRP3, and NF-κB1 were significantly downregulated (p < 0.05). Furthermore, the changes in GPX were significantly increased after selenite and yeast supplementation (p < 0.05). Also, selenite and yeast consumption caused a statistically significant decrease in the change of MDA level (p < 0.05). CONCLUSION In summary, these findings showed that Se supplementation may reduce inflammation through down-regulation of some pro-inflammatory genes, improving antioxidant defenses in atherosclerosis patients. Further research is required to come to a definite conclusion of selenium supplementation on the CVD risk. This study was registered on the Iranian Registry of Clinical Trials website (identifier: RCT20110123005670N28; https://www.irct.ir/).
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Affiliation(s)
- Neda Roshanravan
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahdiyeh Khabbaz Koche Ghazi
- Nutrition Research Center, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Samad Ghaffari
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Naemi
- Nutrition Research Center, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Alireza Namazi Shabestari
- Department of Geriatric Medicine, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Erfan Mosharkesh
- Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran
| | - Hamid Soleimanzadeh
- Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | | | - Shahriar Alipour
- Department of Clinical Biochemistry and Applied Cell Sciences, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Sepideh Bastani
- Stem Cell And Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Ali Tarighat-Esfanjani
- Nutrition Research Center, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
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Taştemur M, Beysel S, Hepşen S, Öztekin S, Çakal E, Akdağ İ, Yıldız M. Investigating ADAMTS7 and ADAMTS12 levels in prediabetic and Type 2 diabetic patients. Biomark Med 2021; 15:753-760. [PMID: 34169731 DOI: 10.2217/bmm-2020-0161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 03/19/2021] [Indexed: 12/14/2022] Open
Abstract
Background: This study aims to investigate the role of ADAMTS7 and ADAMTS12 on atherosclerosis and inflammation in prediabetic and diabetic patients. Patients & methods: Serum ADAMTS7 and ADAMTS12 levels were compared with the atherosclerotic and inflammatory markers in diabetic (n = 65, female 30.9%, mean age = 53 years), prediabetic (n = 55, female 36.6%, mean age = 49 years) and control groups (n = 55, females 32.5%, mean age = 49 years). Serum ADAMTS levels were determined by a human enzyme-liked immunoassay. Results: In terms of ADAMTS7, there was no significant difference between diabetic, prediabetic and control groups (50.93, 44.34, 59.07, respectively; p > 0.05). ADAMTS12 is lower in diabetics (p < 0.05), whereas it is similar in prediabetics and controls (14.53, 20.76, 25.05, respectively; p > 0.05). ADAMTS7 and ADAMTS12 levels did not differ in diabetic nephropathy, retinopathy and neuropathy (p > 0.05). Conclusion: While ADAMTS12 was significantly lower in diabetics and prediabetics, ADAMTS7 and ADAMTS12 were not related to diabetic complications (nephropathy, retinopathy and neuropathy).
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Affiliation(s)
- Mercan Taştemur
- Department of Internal Medicine, University of Health Sciences, Diskapi Yildirim Beyazit Training & Research Hospital, Ankara, Turkey
| | - Selvihan Beysel
- Department of Endocrinology & Metabolism, Afyonkarahisar Health Science University, Ankara, Turkey
| | - Sema Hepşen
- Department of Endocrinology & Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training & Research Hospital, Ankara, Turkey
| | - Sanem Öztekin
- Department of Internal Medicine, University of Health Sciences, Diskapi Yildirim Beyazit Training & Research Hospital, Ankara, Turkey
| | - Erman Çakal
- Department of Endocrinology & Metabolism, University of Health Sciences, Diskapi Yildirim Beyazit Training & Research Hospital, Ankara, Turkey
| | - İbrahim Akdağ
- Department of Internal Medicine, University of Health Sciences, Diskapi Yildirim Beyazit Training & Research Hospital, Ankara, Turkey
| | - Mehmet Yıldız
- Department of Internal Medicine, University of Health Sciences, Diskapi Yildirim Beyazit Training & Research Hospital, Ankara, Turkey
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Abstract
The a disintegrin-like and metalloproteinase with thrombospondin motif (ADAMTS) family comprises 19 proteases that regulate the structure and function of extracellular proteins in the extracellular matrix and blood. The best characterized cardiovascular role is that of ADAMTS-13 in blood. Moderately low ADAMTS-13 levels increase the risk of ischeamic stroke and very low levels (less than 10%) can cause thrombotic thrombocytopenic purpura (TTP). Recombinant ADAMTS-13 is currently in clinical trials for treatment of TTP. Recently, new cardiovascular roles for ADAMTS proteases have been discovered. Several ADAMTS family members are important in the development of blood vessels and the heart, especially the valves. A number of studies have also investigated the potential role of ADAMTS-1, -4 and -5 in cardiovascular disease. They cleave proteoglycans such as versican, which represent major structural components of the arteries. ADAMTS-7 and -8 are attracting considerable interest owing to their implication in atherosclerosis and pulmonary arterial hypertension, respectively. Mutations in the ADAMTS19 gene cause progressive heart valve disease and missense variants in ADAMTS6 are associated with cardiac conduction. In this review, we discuss in detail the evidence for these and other cardiovascular roles of ADAMTS family members, their proteolytic substrates and the potential molecular mechanisms involved.
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Affiliation(s)
- Salvatore Santamaria
- Centre for Haematology, Imperial College London, Du Cane Road, London W12 0NN, UK
| | - Rens de Groot
- Centre for Haematology, Imperial College London, Du Cane Road, London W12 0NN, UK.,Institute of Cardiovascular Science, University College London, 51 Chenies Mews, London WC1E 6HX, UK
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Pérez-Hernández N, Posadas-Sánchez R, Vargas-Alarcón G, Cazarín-Santos BG, Miranda-Duarte A, Rodríguez-Pérez JM. Genetic Variants and Haplotypes in OPG Gene Are Associated with Premature Coronary Artery Disease and Traditional Cardiovascular Risk Factors in Mexican Population: The GEA Study. DNA Cell Biol 2020; 39:2085-2094. [PMID: 32955941 DOI: 10.1089/dna.2020.5949] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Basic and clinical research have demonstrated that osteoprotegerin (OPG) plays an important role in the development and progression of cardiovascular diseases. The aim of this study was to evaluate the association of four polymorphic sites (rs2073618, rs3134069, rs3134070, and rs3102735) of OPG gene with premature coronary artery disease (pCAD), and with cardiometabolic parameters. The polymorphisms were genotyped using 5' exonuclease TaqMan genotyping assays with real-time PCR in 1098 individuals with pCAD and 1041 healthy controls. rs2073618 polymorphism was associated with a high risk of developing pCAD according to different inheritance models: additive (p = 0.001; odds ratio [OR] = 1.283), dominant (p = 0.006; OR = 1.383), recessive (p = 0.011; OR = 1.423), and codominant 2 (p = 0.001; OR = 1.646). The four polymorphisms were associated with different cardiovascular risk factors in individuals with pCAD and controls. Our results suggest that OPG rs2073618 polymorphism is associated with an increased risk of pCAD. In addition, two haplotypes were associated with pCAD, one increasing the risk (CACT) and another one as protective (GACC).
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Affiliation(s)
- Nonanzit Pérez-Hernández
- Department of Molecular Biology and Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico
| | | | - Gilberto Vargas-Alarcón
- Department of Molecular Biology and Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico
| | | | - Antonio Miranda-Duarte
- Department of Genetics, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Mexico City, Mexico
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Melekoglu R, Yilmaz E, Ciftci O, Kafadar YT, Celik E. Associations between second-trimester amniotic fluid levels of ADAMTS4, ADAMTS5, IL-6, and TNF-α and spontaneous preterm delivery in singleton pregnancies. J Perinat Med 2019; 47:304-310. [PMID: 30730845 DOI: 10.1515/jpm-2018-0297] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 01/14/2019] [Indexed: 11/15/2022]
Abstract
Background We investigated the roles of inflammatory cytokines and the A disintegrin and metalloproteinase with thrombospondin motifs (ADAMTS) family in the etiopathogenesis of spontaneous preterm delivery by comparing the ADAMTS4, ADAMTS5, interleukin (IL)-6, and tumor necrosis factor-α (TNF-α) levels in second-trimester amniotic fluid between pregnant women with preterm birth and term controls. Methods All pregnant women who underwent second-trimester amniocentesis for genetic analysis between January 1, 2016, and January 1, 2018, were enrolled in this study. From this cohort, 22 patients who subsequently experienced spontaneous preterm delivery before 34 weeks of pregnancy formed the study group, and 22 age- and body mass index (BMI)-matched patients without preterm birth constituted the control group. Results No significant differences were observed between the preterm birth and control groups in terms of age, BMI, obstetric history of preterm delivery, gestational age at amniocentesis, or indication for amniocentesis. The mean amniotic fluid levels of ADAMTS4 and ADAMTS5 were significantly increased in the preterm birth group compared to the control group (248.3±22.6 and 182.4±19.8 pg/mL, P=0.012; and 198.6±21.6 and 159.1±21.7 pg/mL, P=0.035, respectively). Significantly increased IL-6 and TNF-α levels were also detected in the amniotic fluid of women who experienced spontaneous preterm delivery, relative to controls (142.1±16.2 and 95.8±16.4 pg/mL, P<0.001; and 139.4±12.5 and 89.6±11.2 pg/mL, P<0.001, respectively). Conclusion The results of this study imply that increased mid-trimester amniotic fluid levels of ADAMTS4, ADAMTS5, IL-6, and TNF-α play an important role in the pathophysiology of spontaneous preterm delivery.
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Affiliation(s)
- Rauf Melekoglu
- Faculty of Medicine, Department of Obstetrics and Gynecology, University of Inonu, Malatya, Turkey
| | - Ercan Yilmaz
- Faculty of Medicine, Department of Obstetrics and Gynecology, University of Inonu, 44280 Malatya, Turkey, Tel.: +905369556180, Fax: +90422 3411217
| | - Osman Ciftci
- Faculty of Medicine, Department of Medical Pharmacology, University of Pamukkale, Denizli, Turkey
| | | | - Ebru Celik
- Faculty of Medicine, Department of Obstetrics and Gynecology, University of Koc, İstanbul, Turkey
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Melekoglu R, Ciftci O, Celik E, Yilmaz E, Bastemur AG. Evaluation of second trimester amniotic fluid ADAMTS4, ADAMTS5, interleukin-6 and tumor necrosis factor-α levels in patients with gestational diabetes mellitus. J Obstet Gynaecol Res 2019; 45:824-829. [PMID: 30623540 DOI: 10.1111/jog.13914] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 12/08/2018] [Indexed: 01/04/2023]
Abstract
AIM To test the hypothesis that altered A Disintegrin and Metalloproteinase Domains with Thrombospondins motifs (ADAMTS) is implicated in the etiopathogenesis of gestational diabetes mellitus (GDM). METHODS All pregnant women who underwent elective amniocentesis for karyotype analysis between January 1, 2016, and January 1, 2018, were included in this study. From this cohort, the study group consisting of 20 patients diagnosed with GDM was selected and compared against a control group consisting of 20 age- and body mass index (BMI)-matched patients without GDM. ADAMTS4, ADAMTS5, interleukin-6 (IL-6) and tumor necrosis factor alpha (TNF-α) levels were compared in the second trimester amniotic fluid of patients with GDM and normoglycemic pregnant women. RESULTS No significant differences were observed between GDM and control groups regarding age, BMI, gestational age at amniocentesis and indication for amniocentesis. Mean amniotic fluid ADAMTS4 and ADAMTS5 levels were significantly increased in the GDM group compared with the control group (253.5 ± 18.7 pg/mL and 188.5 ± 21.3 pg/mL, P < 0.001; 192.9 ± 16.4 pg/mL and 154.8 ± 19.9 pg/mL, P = 0.021, respectively). Significant increases in IL-6 and TNF-α levels were also detected in the amniotic fluid of GDM patients relative to controls (136.2 ± 17.3 pg/mL and 98.3 ± 11.5 pg/mL, P < 0.001; 154.2 ± 12.5 pg/mL and 86.2 ± 10.8 pg/mL, P < 0.001, respectively). CONCLUSION The data presented here suggest that increased levels of ADAMTS4, ADAMTS5, IL-6 and TNF-α may play an important role in the progression of GDM.
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Affiliation(s)
- Rauf Melekoglu
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Inonu, Malatya, Turkey
| | - Osman Ciftci
- Department of Medical Pharmacology, Faculty of Medicine, University of Pamukkale, Denizli, Turkey
| | - Ebru Celik
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Koc, İstanbul, Turkey
| | - Ercan Yilmaz
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Inonu, Malatya, Turkey
| | - Ayse G Bastemur
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Inonu, Malatya, Turkey
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Ozler S, Isci Bostanci E, Oztas E, Kuru Pekcan M, Gumus Guler B, Yilmaz N. The role of ADAMTS4 and ADAMTS9 in cardiovascular disease in premature ovarian insufficiency and idiopathic hypogonadotropic hypogonadism. J Endocrinol Invest 2018; 41:1477-1483. [PMID: 30187439 DOI: 10.1007/s40618-018-0948-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 08/22/2018] [Indexed: 01/20/2023]
Abstract
PURPOSE We aimed to determine the relation of a disintegrin and metalloproteinase with thrombospondin motifs-4 (ADAMTS4), and a disintegrin and metalloproteinase with thrombospondin motifs-9 (ADAMTS9) with cardiovascular disease (CVD) risk, in ovarian dysfunction patients with premature ovarian insufficiency (POI), and idiopathic hypogonadotropic hypogonadism (IHH). METHODS 43 IHH and 44 POI patients were enrolled to this case-control study. Serum hormonal parameters, lipid profiles, ADAMTS4 and ADAMTS9 levels were measured. Lipid accumulation product (LAP) index, visceral adiposity index (VAI), and homeostasis model assessment of insulin resistance (HOMA-IR) were calculated. The patients with at least two out of the four following criteria were accepted to have increased CVD risk; waist-to-hip ratio (WHR) ≥ 0.8, waist circumference (WC) ≥ 79 cm, triglycerides (TG) ≥ 150 mg/dL, high-density lipoprotein cholesterol (HDL-C) < 50 mg/dL. Serum ADAMTS4 and ADAMTS9 levels were measured by enzyme-linked immunosorbent assay (ELISA). RESULTS ADAMTS4 and ADAMTS9 levels were significantly higher in the IHH group than the POI group (p = 0.002, and p = 0.013, respectively). IHH group had significantly higher levels of insulin, HOMA-IR index, and LAP index (p = 0.006, p = 0.005, and p = 0.013, respectively). The mean age of patients in the IHH group (23.60 ± 5.64 years) was significantly lower than the POI group (31.05 ± 6.03 years), (p < 0.001). Odds ratios (OR) were 1.236 (95% CI 1.055-1.447) and 1.002 (95% CI 1.000-1.004) for LAP index and ADAMTS4, respectively, in the IHH group. These two parameters found to have high predictivity for CVD risk in the IHH group (p = 0.009 and p = 0.028, respectively). CONCLUSION The lower levels of ADAMTS4 in the POI group, when compared with the IHH patients pointed out that even limited hormone secretion and ovulation in the POI group, may have protective effect on cardiovascular system. The higher levels of ADAMTS4 and LAP index in the IHH group demonstrated the increased risk of these patients for CVD.
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Affiliation(s)
- S Ozler
- Department of Perinatology, Konya Education and Research Hospital, Konya, Turkey.
| | - E Isci Bostanci
- Department of Gynecological Oncology, Gazi University, Ankara, Turkey
| | - E Oztas
- Department of Perinatology, Eskisehir State Hospital, Eskisehir, Turkey
| | - M Kuru Pekcan
- Department of Gynecology and Obstetrics, Zekai Tahir Burak Women's Health Education and Research Hospital, Ankara, Turkey
| | - B Gumus Guler
- Department of Gynecology and Obstetrics, Istinye University, Ankara, Turkey
| | - N Yilmaz
- Department of Reproductive Endocrinology, Zekai Tahir Burak Women's Health Education and Research Hospital, Ankara, Turkey
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Transforming Growth Factor- β Protects against Inflammation-Related Atherosclerosis in South African CKD Patients. Int J Nephrol 2018; 2018:8702372. [PMID: 29977619 PMCID: PMC6011064 DOI: 10.1155/2018/8702372] [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: 12/24/2017] [Revised: 04/16/2018] [Accepted: 05/10/2018] [Indexed: 12/18/2022] Open
Abstract
Background Transforming growth factor-β (TGF-β) may inhibit the development of atherosclerosis. We evaluated serum levels of TGF-β isoforms concurrently with serum levels of endotoxin and various inflammatory markers. In addition, we determined if any association exists between polymorphisms in the TGF-β1 gene and atherosclerosis in South African CKD patients. Methods We studied 120 CKD patients and 40 healthy controls. Serum TGF-β1, TGF-β2, TGF-β3, endotoxin, and inflammatory markers were measured. Functional polymorphisms in the TGF-β1 genes were genotyped using a polymerase chain reaction-sequence specific primer method and carotid intima media thickness (CIMT) was assessed by B-mode ultrasonography. Results TGF-β isoforms levels were significantly lower in the patients with atherosclerosis compared to patients without atherosclerosis (p<0.001). Overall, TGF-β isoforms had inverse relationships with CIMT. TGF-β1 and TGF-β2 levels were significantly lower in patients with carotid plaque compared to those without carotid plaque [TGF-β1: 31.9 (17.2 – 42.2) versus 45.9 (35.4 – 58.1) ng/ml, p=0.016; and TGF-β2: 1.46 (1.30 – 1.57) versus 1.70 (1.50 – 1.87) ng/ml, p=0.013]. In multiple logistic regression, age, TGF-β2, and TGF-β3 were the only independent predictors of subclinical atherosclerosis in CKD patients [age: odds ratio (OR), 1.054; 95% confidence interval (CI): 1.003 – 1.109, p=0.039; TGF-β2: OR, 0.996; 95% CI: 0.994–0.999, p=0.018; TGF-β3: OR, 0.992; 95% CI: 0.985–0.999, p=0.029). TGF-β1 genotypes did not influence serum levels of TGF-β1 and no association was found between the TGF-β1 gene polymorphisms and atherosclerosis risk. Conclusion TGF-β isoforms seem to offer protection against the development of atherosclerosis among South African CKD patients.
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Loss of ADAMTS4 reduces high fat diet-induced atherosclerosis and enhances plaque stability in ApoE(-/-) mice. Sci Rep 2016; 6:31130. [PMID: 27491335 PMCID: PMC4974561 DOI: 10.1038/srep31130] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 07/11/2016] [Indexed: 11/08/2022] Open
Abstract
Atherosclerosis is a chronic inflammatory disease characterized by formation of lipid-rich plaques on the inner walls of arteries. ADAMTS4 (a disintegrin-like and metalloproteinase with thrombospondin motifs-4) is a secreted proteinase that regulates versican turnover in the arterial wall and atherosclerotic plaques. Recent reports indicated elevated ADAMTS4 level in human atherosclerotic plaques and in the plasma of acute coronary syndrome patients. Nevertheless, whether increased ADAMTS4 is a consequence of atherosclerosis or ADAMTS4 has a causal role in atherogenesis remains unknown. In this work, we investigated the role of ADAMTS4 in diet induced atherosclerosis using apolipoprotein E deficient (ApoE(-/-)) and Adamts4 knockout mice. We show that ADAMTS4 expression increases in plaques as atherosclerosis progresses in ApoE(-/-) mice. ApoE(-/-)Adamts4(-/-) double knockout mice presented a significant reduction in plaque burden at 18 weeks of age. Loss of ADAMTS4 lead to a more stable plaque phenotype with a significantly reduced plaque vulnerability index characterized by reduced lipid content and macrophages accompanied with a significant increase in smooth muscle cells, collagen deposition and fibrotic cap thickness. The reduced atherosclerosis is accompanied by an altered plasma inflammatory cytokine profile. These results demonstrate for the first time that ADAMTS4 contributes to diet induced atherosclerosis in ApoE(-/-) mice.
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