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Erol Koc EM, Ceyhan M, Yaman S, Neselioglu S, Erel O, Ozaksit MG. Prolidase as a marker of fibrogenesis in idiopathic primary ovarian insufficiency. Eur J Obstet Gynecol Reprod Biol 2023; 281:7-11. [PMID: 36521400 DOI: 10.1016/j.ejogrb.2022.12.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 10/30/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022]
Abstract
OBJECTIVES To evaluate the serumlevel of prolidase,which isa marker of fibrogenic activity, in women with idiopathic primary ovarian insufficiency (POI). STUDY DESIGN This is a prospective case-control study. Serum prolidase level was compared between the study group including 68 women with POI and control group including 65 normally menstruating women. Serum proline and hydroxyproline levels were also compared. Correlation analyses were performed between the prolidase level and POI related parameters including estradiol (E), follicle stimulating hormone (FSH), anti-mullerian hormone (AMH) levels, and presence of POI family history. RESULTS Serum prolidase and proline level were significantly increased in women with the diagnosis of POI compared to the control group (1082.57 (147.53) vs 981.13 (223.26) U/L, 233.30 (83.16) vs 218.94 (82.59) µmol/L, respectively). Prolidase level found to have significant correlations with AMH, E, FSH levels, and presence of POI family history (r = -0.49, p = 0.001; r = -0.39, p = 0.001; r = 0.42, p = 0.001; r = 0.22, p = 0.01; respectively). In receiver operating characteristics analysis, prolidase was shown to be a discriminative factor for POI at 1031.14 U/L cut-off value with 75 % sensitivity and 65 % specificity. Thearea under curve was 0.71 [(95 % CI: 0.62-0.79), p = 0.001]. CONCLUSION The current study revealed increased prolidase level in women withPOI. Serum prolidase level was also negatively correlated with the serum AMH level. Considering the present findings,prolidase may be a candidate molecule in assessment of POI cases.
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Affiliation(s)
- Esin Merve Erol Koc
- Department of Obstetrics and Gynecology, Ankara City Hospital, Ankara, Turkey.
| | - Meryem Ceyhan
- Department of Obstetrics and Gynecology, Ankara City Hospital, Ankara, Turkey
| | - Selen Yaman
- Department of Obstetrics and Gynecology, Ankara City Hospital, Ankara, Turkey
| | - Salim Neselioglu
- Department of Biochemistry, Ankara Yıldırım Beyazıt University, Faculty of Medicine, Ankara, Turkey
| | - Ozcan Erel
- Department of Biochemistry, Ankara Yıldırım Beyazıt University, Faculty of Medicine, Ankara, Turkey
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Pekkoc-Uyanik KC, Aslan EI, Kilicarslan O, Ser OS, Ozyildirim S, Yanar F, Yildiz A, Ozturk O, Yilmaz-Aydogan H. Next-generation sequencing of prolidase gene identifies novel and common variants associated with low prolidase in coronary artery ectasia. Mol Biol Rep 2023; 50:1349-1365. [PMID: 36462085 DOI: 10.1007/s11033-022-08142-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 11/22/2022] [Indexed: 12/04/2022]
Abstract
BACKGROUND Decreased collagen biosynthesis and increased collagenolysis can cause ectasia progression in the arterial walls. Prolidase is a key enzyme in collagen synthesis; a decrease in prolidase activity or level may decrease collagen biosynthesis, which may contribute to ectasia formation. Considering that, the variations in PEPD gene encoding prolidase enzyme were evaluated by analyzing next-generation sequencing (NGS) for the first time together with known risk factors in coronary artery ectasia (CAE) patients. METHODS Molecular analysis of the PEPD gene was performed on genomic DNA by NGS in 76 CAE patients and 76 controls. The serum levels of prolidase were measured by the sandwich-ELISA technique. RESULTS Serum prolidase levels were significantly lower in CAE group compared to control group, and it was significantly lower in males than females in both groups (p < 0.001). On the other hand, elevated prolidase levels were observed in CAE patients in the presence of diabetes (p < 0.001), hypertension (p < 0.05) and hyperlipidemia (p < 0.05). Logistic regression analysis demonstrated that the low prolidase level (p < 0.001), hypertension (p < 0.02) and hyperlipidemia (p < 0.012) were significantly associated with increased CAE risk. We identified four missense mutations in the PEPD gene, namely G296S, T266A, P365L and S134C (novel) that could be associated with CAE. The pathogenicity of these mutations was predicted to be "damaging" for G296S, S134C and P365L, but "benign" for T266A. We also identified a novel 5'UTR variation (Chr19:34012748 G>A) in one patient who had a low prolidase level. In addition, rs17570 and rs1061338 common variations of the PEPD gene were associated with low prolidase levels in CAE patients, while rs17569 variation was associated with high prolidase levels in both CAE and controls (p < 0.05). CONCLUSIONS Our findings indicate that the low serum prolidase levels observed in CAE patients is significantly associated with PEPD gene variations. It was concluded that low serum prolidase level and associated PEPD mutations may be potential biomarkers for the diagnosis of CAE.
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Affiliation(s)
- Kubra Cigdem Pekkoc-Uyanik
- Department of Molecular Medicine, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey.,Department of Medical Biology, Faculty of Medicine, Halic University, Istanbul, Turkey
| | - Ezgi Irmak Aslan
- Department of Molecular Medicine, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey
| | - Onur Kilicarslan
- Department of Cardiology, Institute of Cardiology, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Ozgur Selim Ser
- Department of Cardiology, Institute of Cardiology, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Serhan Ozyildirim
- Department of Cardiology, Institute of Cardiology, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Fatih Yanar
- Department of Molecular Medicine, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey.,Department of Molecular Biology and Genetics, Bogazici University, Istanbul, Turkey
| | - Ahmet Yildiz
- Department of Cardiology, Institute of Cardiology, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Oguz Ozturk
- Department of Molecular Medicine, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey
| | - Hulya Yilmaz-Aydogan
- Department of Molecular Medicine, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey.
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Karacan N, Çalik M, Kazanasmaz H, Ethemoğlu Ö, Güzelçiçek A, Yaşin S, Kandemir H, Çeçen E. The Serum Prolidase Enzyme Activity as a Biomarker for Evaluation of the Subclinical Vascular Damage in Children with Epilepsy. Ann Indian Acad Neurol 2021; 23:787-791. [PMID: 33688128 PMCID: PMC7900735 DOI: 10.4103/aian.aian_640_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 12/23/2019] [Accepted: 02/07/2020] [Indexed: 01/14/2023] Open
Abstract
Backgroud: Epilepsy is a chronic medical condition requiring long term or even lifelong therapy. Various researches have shown that epilepsy patients have vascular risk factors such as abnormal lipids, insulin, elevated oxidative stress, chronic inflammation, and subclinical atherosclerosis. Objectives: The purpose of the present study was to determine serum prolidase enzyme activity as a biomarker in children taking antiepileptic drug treatment through comparison with control cases. Materials and Methods: The present study group consists of 61 children (20 females, 41 males) with epilepsy and a control group was formed of 32 healthy individuals (14 females, 18 males). Aspectrophotometric method was used to measure serum prolidase enzyme activity. Results: The epilepsy group demonstrated statistically significantly higher prolidase enzyme activity values when compared with the control group (P = 0.003). It was measured that the serum TOS and OSI values were significantly elevated in patients with epilepsy compared to controls (P < 0.001). However, serum TAS values were significantly lower in the epilepsy group than in the control group (P = 0.032). Conclusions: These results supported that epileptic patients taking the antiepileptic treatment had increased serum prolidase enzyme activity, suggesting that it may show an increased risk of subclinical vascular damage related to both chronic inflammation and fibrotic process associated with degenerated collagen turnover. Therefore, serum prolidase enzyme activity could be considered a useful biomarker for evaluation of the subclinical vascular damage in children with epilepsy on some antiepileptic drugs.
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Affiliation(s)
- Nurettin Karacan
- Department of Pediatrics, Harran University School of Medicine, Sanliurfa, Turkey
| | - Mustafa Çalik
- Department of Pediatric Neurology, Harran University School of Medicine, Sanliurfa, Turkey
| | - Halil Kazanasmaz
- Department of Pediatrics, Harran University School of Medicine, Sanliurfa, Turkey
| | - Özlem Ethemoğlu
- Department of Neurology, Harran University School of Medicine, Sanliurfa, Turkey
| | - Ahmet Güzelçiçek
- Department of Pediatrics, Harran University School of Medicine, Sanliurfa, Turkey
| | - Sedat Yaşin
- Department of Pediatric Neurology, Harran University School of Medicine, Sanliurfa, Turkey
| | - Hasan Kandemir
- Department of Child and Adolescent Psychiatry, Celal Bayar University School of Medicine, Manisa, Turkey
| | - Emre Çeçen
- Department of Pediatric Oncology, Harran University School of Medicine, Sanliurfa, Turkey
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4
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Eni-Aganga I, Lanaghan ZM, Balasubramaniam M, Dash C, Pandhare J. PROLIDASE: A Review from Discovery to its Role in Health and Disease. Front Mol Biosci 2021; 8:723003. [PMID: 34532344 PMCID: PMC8438212 DOI: 10.3389/fmolb.2021.723003] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 08/18/2021] [Indexed: 01/14/2023] Open
Abstract
Prolidase (peptidase D), encoded by the PEPD gene, is a ubiquitously expressed cytosolic metalloproteinase, the only enzyme capable of cleaving imidodipeptides containing C-terminal proline or hydroxyproline. Prolidase catalyzes the rate-limiting step during collagen recycling and is essential in protein metabolism, collagen turnover, and matrix remodeling. Prolidase, therefore plays a crucial role in several physiological processes such as wound healing, inflammation, angiogenesis, cell proliferation, and carcinogenesis. Accordingly, mutations leading to loss of prolidase catalytic activity result in prolidase deficiency a rare autosomal recessive metabolic disorder characterized by defective wound healing. In addition, alterations in prolidase enzyme activity have been documented in numerous pathological conditions, making prolidase a useful biochemical marker to measure disease severity. Furthermore, recent studies underscore the importance of a non-enzymatic role of prolidase in cell regulation and infectious disease. This review aims to provide comprehensive information on prolidase, from its discovery to its role in health and disease, while addressing the current knowledge gaps.
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Affiliation(s)
- Ireti Eni-Aganga
- Center for AIDS Health Disparities Research, Nashville, TN, United States.,School of Graduate Studies and Research, Nashville, TN, United States.,Department of Microbiology, Immunology and Physiology, Nashville, TN, United States
| | - Zeljka Miletic Lanaghan
- Center for AIDS Health Disparities Research, Nashville, TN, United States.,Pharmacology Graduate Program, Vanderbilt University, Nashville, TN, United States
| | - Muthukumar Balasubramaniam
- Center for AIDS Health Disparities Research, Nashville, TN, United States.,Department of Biochemistry, Cancer Biology, Pharmacology and Neuroscience, Meharry Medical College, Nashville, TN, United States
| | - Chandravanu Dash
- Center for AIDS Health Disparities Research, Nashville, TN, United States.,School of Graduate Studies and Research, Nashville, TN, United States.,Department of Biochemistry, Cancer Biology, Pharmacology and Neuroscience, Meharry Medical College, Nashville, TN, United States
| | - Jui Pandhare
- Center for AIDS Health Disparities Research, Nashville, TN, United States.,School of Graduate Studies and Research, Nashville, TN, United States.,Department of Microbiology, Immunology and Physiology, Nashville, TN, United States
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5
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Serum prolidase activity in patients with cardiac syndrome X. North Clin Istanb 2020; 7:471-477. [PMID: 33163883 PMCID: PMC7603856 DOI: 10.14744/nci.2020.09086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 04/10/2020] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE: Although the underlying mechanism is not yet fully understood, Cardiac Syndrome X (CSX) is defined as microvascular dysfunction. Prolidase plays a role in collagen synthesis. Increased serum prolidase activity (SPA) has been shown to correlate with collagen turnover. Augmented collagen turn-over may be associated with vascular fibrosis and microvascular dysfunction. In this study, we assessed whether there was a correlation between CXS and prolidase activity. METHODS: This case-control study included 45 consecutive CSX patients (mean age 50.7±6.5 years, 27 women) and 40 healthy controls (mean age 51.2±6.5 years, 25 women). Prolidase activity was determined with the Human Xaa-Pro Dipeptidase/Prolidase enzyme-linked immunosorbent assay kit (Cusabio Biotech Co. Ltd, China). RESULTS: Mean prolidase activity was 898.8±639.1 mU/mL in the CSX group and 434.1±289.8 mU/mL in the control group (p<0.001). In ROC analysis, it was found that the SPA value above 350 mU/mL sympathizes with the diagnosis of CSX. CONCLUSION: Increased SPA in CXS patients may play an essential role in the pathophysiology of CSX, leading to augmented oxidative stress and vascular fibrosis, endothelial dysfunction, and increased microvascular resistance.
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Chen Z, Yu H, Shi X, Warren CR, Lotta LA, Friesen M, Meissner TB, Langenberg C, Wabitsch M, Wareham N, Benson MD, Gerszten RE, Cowan CA. Functional Screening of Candidate Causal Genes for Insulin Resistance in Human Preadipocytes and Adipocytes. Circ Res 2019; 126:330-346. [PMID: 31739742 DOI: 10.1161/circresaha.119.315246] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Rationale: Genome-wide association studies have identified genetic loci associated with insulin resistance (IR) but pinpointing the causal genes of a risk locus has been challenging. Objective: To identify candidate causal genes for IR, we screened regional and biologically plausible genes (16 in total) near the top 10 IR-loci in risk-relevant cell types, namely preadipocytes and adipocytes. Methods and Results: We generated 16 human Simpson-Golabi-Behmel syndrome preadipocyte knockout lines each with a single IR-gene knocked out by lentivirus-mediated CRISPR (clustered regularly interspaced short palindromic repeats)/Cas9 system. We evaluated each gene knockout by screening IR-relevant phenotypes in the 3 insulin-sensitizing mechanisms, including adipogenesis, lipid metabolism, and insulin signaling. We performed genetic analyses using data on the genotype-tissue expression portal expression quantitative trait loci database and accelerating medicines partnership type 2 diabetes mellitus Knowledge Portal to evaluate whether candidate genes prioritized by our in vitro studies were expression quantitative trait loci genes in human subcutaneous adipose tissue, and whether expression of these genes is associated with risk of IR, type 2 diabetes mellitus, and cardiovascular diseases. We further validated the functions of 3 new adipose IR genes by overexpression-based phenotypic rescue in the Simpson-Golabi-Behmel syndrome preadipocyte knockout lines. Twelve genes, PPARG, IRS-1, FST, PEPD, PDGFC, MAP3K1, GRB14, ARL15, ANKRD55, RSPO3, COBLL1, and LYPLAL1, showed diverse phenotypes in the 3 insulin-sensitizing mechanisms, and the first 7 of these genes could affect all the 3 mechanisms. Five out of 6 expression quantitative trait loci genes are among the top candidate causal genes and the abnormal expression levels of these genes (IRS-1, GRB14, FST, PEPD, and PDGFC) in human subcutaneous adipose tissue could be associated with increased risk of IR, type 2 diabetes mellitus, and cardiovascular disease. Phenotypic rescue by overexpression of the candidate causal genes (FST, PEPD, and PDGFC) in the Simpson-Golabi-Behmel syndrome preadipocyte knockout lines confirmed their function in adipose IR. Conclusions: Twelve genes showed diverse phenotypes indicating differential roles in insulin sensitization, suggesting mechanisms bridging the association of their genomic loci with IR. We prioritized PPARG, IRS-1, GRB14, MAP3K1, FST, PEPD, and PDGFC as top candidate genes. Our work points to novel roles for FST, PEPD, and PDGFC in adipose tissue, with consequences for cardiometabolic diseases.
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Affiliation(s)
- Zhifen Chen
- From the Beth Israel Deaconess Medical Center, Cardiovascular Institute, Harvard Medical School, Boston, MA (Z.C., H.Y., X.S., M.F., T.B.M., M.D.B., R.E.G, C.A.C.).,Harvard Stem Cell Institute, Harvard University, Cambridge, MA (Z.C., H.Y., M.F., C.R.W., T.B.M., C.A.C.)
| | - Haojie Yu
- From the Beth Israel Deaconess Medical Center, Cardiovascular Institute, Harvard Medical School, Boston, MA (Z.C., H.Y., X.S., M.F., T.B.M., M.D.B., R.E.G, C.A.C.).,Harvard Stem Cell Institute, Harvard University, Cambridge, MA (Z.C., H.Y., M.F., C.R.W., T.B.M., C.A.C.)
| | - Xu Shi
- From the Beth Israel Deaconess Medical Center, Cardiovascular Institute, Harvard Medical School, Boston, MA (Z.C., H.Y., X.S., M.F., T.B.M., M.D.B., R.E.G, C.A.C.)
| | - Curtis R Warren
- Harvard Stem Cell Institute, Harvard University, Cambridge, MA (Z.C., H.Y., M.F., C.R.W., T.B.M., C.A.C.).,Cardiometabolic Disease Research, Boehringer-Ingelheim Pharmaceuticals, Inc, Ridgefield, CT (C.R.W.)
| | - Luca A Lotta
- MRC Epidemiology Unit, University of Cambridge School of Clinical Medicine, Cambridge, United Kingdom (L.A.L., C.L., N.W.)
| | - Max Friesen
- From the Beth Israel Deaconess Medical Center, Cardiovascular Institute, Harvard Medical School, Boston, MA (Z.C., H.Y., X.S., M.F., T.B.M., M.D.B., R.E.G, C.A.C.).,Harvard Stem Cell Institute, Harvard University, Cambridge, MA (Z.C., H.Y., M.F., C.R.W., T.B.M., C.A.C.)
| | - Torsten B Meissner
- From the Beth Israel Deaconess Medical Center, Cardiovascular Institute, Harvard Medical School, Boston, MA (Z.C., H.Y., X.S., M.F., T.B.M., M.D.B., R.E.G, C.A.C.).,Harvard Stem Cell Institute, Harvard University, Cambridge, MA (Z.C., H.Y., M.F., C.R.W., T.B.M., C.A.C.)
| | - Claudia Langenberg
- MRC Epidemiology Unit, University of Cambridge School of Clinical Medicine, Cambridge, United Kingdom (L.A.L., C.L., N.W.)
| | - Martin Wabitsch
- Pediatrics and Adolescent Medicine, Ulm University Hospital, Germany (M.W.)
| | - Nick Wareham
- MRC Epidemiology Unit, University of Cambridge School of Clinical Medicine, Cambridge, United Kingdom (L.A.L., C.L., N.W.)
| | - Mark D Benson
- From the Beth Israel Deaconess Medical Center, Cardiovascular Institute, Harvard Medical School, Boston, MA (Z.C., H.Y., X.S., M.F., T.B.M., M.D.B., R.E.G, C.A.C.)
| | - Rob E Gerszten
- From the Beth Israel Deaconess Medical Center, Cardiovascular Institute, Harvard Medical School, Boston, MA (Z.C., H.Y., X.S., M.F., T.B.M., M.D.B., R.E.G, C.A.C.)
| | - Chad A Cowan
- From the Beth Israel Deaconess Medical Center, Cardiovascular Institute, Harvard Medical School, Boston, MA (Z.C., H.Y., X.S., M.F., T.B.M., M.D.B., R.E.G, C.A.C.).,Harvard Stem Cell Institute, Harvard University, Cambridge, MA (Z.C., H.Y., M.F., C.R.W., T.B.M., C.A.C.)
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Pirinççi N, Yildirim S, Taş A, Kuşcu Y, Ozan T, Fırdolaş F, Demir H, Karakeci A. Evaluation of Prolidase Activity, Oxidative Stress, and Antioxidant Enzyme Levels in Testicular and Penile Tissues after Human Chorionic Gonadotropin Treatment in Rats by Predicting Infertility and Erectile Dysfunction. Med Princ Pract 2018; 27:217-221. [PMID: 29506009 PMCID: PMC6062733 DOI: 10.1159/000488109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 03/05/2018] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES Prolidase plays a vital role in collagen turnover, matrix remodeling, and cell growth. We aimed to evaluate the association between treatment with chorionic gonadotropin and infertility and erectile dysfunction by investigating tissue prolidase activity, oxidative stress, and levels of antioxidant enzymes. MATERIALS AND METHODS The 16 male Wistar albino rats used in this study were randomly divided into 2 groups: rats treated with human chorionic gonadotropin (hCG) and control rats (n = 8 in each group). The rats in the hCG group were subcutaneously injected with 50 IU hCG daily for 15 days, while the rats in the control group were subcutaneously injected isotonic saline. All of the rats were sacrificed by a lethal overdose of sodium pentobarbital at the first month after hCG administration. Prolidase activity and levels of malonyl aldehyde, glutathione reductase, superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), and catalase (CAT) were estimated in the testicular and penile tissue. The testicles and penis were transversely dissected and placed in formalin. RESULTS Levels of prolidase and malonyl aldehyde in the testicular and penile tissues were significantly higher in the hCG group than in the control group (p < 0.001), while levels of glutathione reductase, SOD, GSH-Px, and CAT were significantly lower in the hCG group than in the control group (p < 0.001). CONCLUSIONS In this study, we observed that treatment with hCG increased prolidase activity and oxidative stress and decreased the antioxidant capacity of penile and testicular tissues; therefore, this may affect fertility and erectile function.
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Affiliation(s)
- Necip Pirinççi
- Department of Urology, Faculty of Medicine, Fırat University, Elazığ, Turkey
| | - Serkan Yildirim
- Department of Pathology, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
| | - Abuzer Taş
- Department of Surgery, Faculty of Veterinary Medicine, Yuzuncu Yil University, Van, Turkey
| | - Yağmur Kuşcu
- Department of Surgery, Faculty of Veterinary Medicine, Yuzuncu Yil University, Van, Turkey
| | - Tunç Ozan
- Department of Urology, Faculty of Medicine, Fırat University, Elazığ, Turkey
| | - Fatih Fırdolaş
- Department of Urology, Faculty of Medicine, Fırat University, Elazığ, Turkey
| | - Halit Demir
- Division of Biochemistry, Department of Chemistry, Yuzuncu Yil University, Van, Turkey
| | - Ahmet Karakeci
- Department of Urology, Faculty of Medicine, Fırat University, Elazığ, Turkey
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Abstract
Objective: Coronary artery ectasia (CAE) is defined as an angiographic enlargement of a portion of the coronary artery between 1.5 and 2 times the diameter of the adjacent normal coronary artery. It has been demonstrated that increased serum prolidase activity (SPA) is associated with increased collagen turnover. We aimed to analyze the relationship between CAE and serum SPA levels. Methods: This study used a prospective case protocol design. A total of 40 consecutive patients with isolated right CAE and normal coronary arteries (23 men, 17 women; mean age, 62.4±10.8 years) were evaluated. The control group included the same number of consecutive patients with angiographically normal coronary arteries (20 men, 20 women; mean age, 63.8±11.1 years). Clinical characteristics, laboratory results, cardiovascular risk factors, and medication use were recorded. SPA was measured using a spectrophotometer. Student’s t-test, Mann–Whitney U test, chi-square test, Pearson’s and Spearman’s correlations, logistic regression analysis, and ROC curve analysis were used for statistical analysis. Results: SPA was significantly higher in the CAE group compared with the control group (1635.2±492.0 U/L and 986.2±422.3 U/L, respectively; p<0.001). The relationship of SPA with CAE proved to be significant (r=0.512; p<0.001). SPA also served as an independent predictor of CAE (OR=1.003; 95% CI, 1.001–1.005; p=0.002). The SPA value of 1170 U/L was predictive of CAE, with a sensitivity of 85% and specificity of 60% (AUC=0.854; 95% CI, 0.763–0.944; p<0.001). Conclusion: The activity of this enzyme was significantly correlated with CAE.
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Kucukdurmaz F, Efe E, Çelik A, Dagli H, Kılınc M, Resim S. Evaluation of serum prolidase activity and oxidative stress markers in men with BPH and prostate cancer. BMC Urol 2017; 17:116. [PMID: 29233144 PMCID: PMC5726032 DOI: 10.1186/s12894-017-0303-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 11/20/2017] [Indexed: 01/26/2023] Open
Abstract
Background Prostate cancer (PCa) and benign prostatic hyperplasia (BPH) are diseases of elderly men and are related to increased oxidative stress (OS). Although prolidase has a role in collagen metabolism, it is also used to evaluate OS in many diseases. However, there is a lack of data about serum prolidase activity (SPA) in prostate cancer. The aim of this study was to evaluate and compare SPA levels in males with BPH and PCa. Methods Evaluation was made of a total of 81 men who underwent transrectal ultrasound guided prostate biopsy for a definitive diagnosis due to high PSA levels. Patients were separated into 2 groups as BPH and PCa patients. Pre-biopsy malondialdehyde (MDA), superoxide dismutase (SOD), PSA levels and serum prolidase activities (SPA) were compared between the groups and the correlations of SPA with the other parameters were also investigated in both groups. Results BPH was diagnosed in 51 patients and PCa in 30. The mean age of patients was similar in both groups as 63.25 ± 5.81 years in the BPH group 65.30 ± 7.35 years in the PCa group(p:0.081). The median MDA and SOD levels were insignificantly increased in the PCa patients. SPA values were similar in BPH and PCa patients. SPA did not correlate with age, PSA, MDA or SOD levels in either group. Conclusions Our study results revealed that serum prolidase activity is similar in BPH and PCa cases and is not correlated with MDA, SOD or PSA levels.
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Affiliation(s)
- Faruk Kucukdurmaz
- Department of Urology, Sutcu Imam University, Avsar Kampusu, 46100, Kahramanmaras, Turkey.
| | - Erkan Efe
- Department of Urology, Sutcu Imam University, Avsar Kampusu, 46100, Kahramanmaras, Turkey
| | - Ahmet Çelik
- Department of Biochemistry, Sutcu Imam University, Kahramanmaras, Turkey
| | - Hasan Dagli
- Department of Biochemistry, Sutcu Imam University, Kahramanmaras, Turkey
| | - Metin Kılınc
- Department of Biochemistry, Sutcu Imam University, Kahramanmaras, Turkey
| | - Sefa Resim
- Department of Urology, Sutcu Imam University, Avsar Kampusu, 46100, Kahramanmaras, Turkey
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Akar İ, İnce İ, Aslan C, Benli İ, Demir O, Altındeger N, Dogan A, Ceber M. Oxidative Stress And Prolidase Enzyme Activity In The Pathogenesis Of Primary Varicose Veins. Vascular 2017; 26:315-321. [PMID: 29216795 DOI: 10.1177/1708538117741764] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objectives Vascular endothelial dysfunction leads to the emerging of free oxygen radicals, deficiency of antioxidant system, forming of oxidative stress, inflammatory processes and release of proinflammatory cytokines. These things play big role in the development of primary varicose veins. Prolidase has been reported as an indicator of oxidative stress in diabetes, diabetic neuropathy, non-ulcerous dyspepsia, osteoporosis, polycystic over syndrome and many other diseases. The aim of this study is to evaluate the oxidative stress at venous insufficiency and to provide preliminary knowledge about the role of prolidase enzyme in varicose vein formation. Methods Ninety patients aged between 22 and 80 (47.35 ± 17.69) were included in the study and divided into 3 groups. Group1(n:30)(Serum control group): Patients without venous insufficiency. Group 2(n:30)(Tissue control group(healthy vein group): Patients underwent coronary artery bypass surgery (the remaining portion of great saphenous vein used as coronary artery bypass graft used as normal tissue) . Group 3(n:30)(Varicose vein group): Patients underwent varicose vein surgery (varicose vein and serum of these patients were used for study). Total Oxidant Status (TOS), Total Antioxidant Status (TAS), Oxidative Stress Index (OSI) and Prolidase enzyme levels were detected in tissue and serum samples. Results No significant changes were detected between three groups' serum samples in oxidative stress parameters and in the prolidase enzyme activity. The tissue TOS and OSI were higher in varicose vein group according to normal vein group and this was found statistically significant. And TAC levels in varicose vein group were significantly lower than normal vein group. Prolidase enzyme activity in varicose vein group was found higher according to normal vein group. Conclusion Oxidative stress plays a role at the development of primary varicose veins at biochemical level. Prolidase enzyme related with oxidative stress may play an important role in the pathogenesis of primary varicose veins.
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Affiliation(s)
- İlker Akar
- 1 Gaziosmanpasa University Faculty of Medicine, Deparment of Cardiovascular Surgery, Tokat, TURKEY
| | - İlker İnce
- 2 Diskapi Educational and Research Hospital, Cardiovascular Surgery Clinic, Ankara, TURKEY
| | - Cemal Aslan
- 3 State Hospital Cardiovascular Surgery Clinic, Tokat, TURKEY
| | - İsmail Benli
- 4 Gaziosmanpaşa University Faculty of Medicine, Department of Biochemistry, Tokat, TURKEY
| | - Osman Demir
- 5 Gaziosmanpaşa University Faculty of Medicine, Department of Biostatistics, Tokat, TURKEY
| | - Nuray Altındeger
- 1 Gaziosmanpasa University Faculty of Medicine, Deparment of Cardiovascular Surgery, Tokat, TURKEY
| | - Abdullah Dogan
- 6 Acıbadem Hospital, Deparment of Cardiovascular Surgery, Istanbul, TURKEY
| | - Mehmet Ceber
- 3 State Hospital Cardiovascular Surgery Clinic, Tokat, TURKEY
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11
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Aslan M, Duzenli U, Esen R, Soyoral YU. Serum prolidase enzyme activity in obese subjects and its relationship with oxidative stress markers. Clin Chim Acta 2017; 473:186-190. [PMID: 28867357 DOI: 10.1016/j.cca.2017.08.039] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Revised: 08/24/2017] [Accepted: 08/31/2017] [Indexed: 11/26/2022]
Abstract
BACKGROUND The relationship between increased serum enzyme activity of prolidase and increased rate of collagen turnover in the arterial wall has been asserted in previous studies. Collagen reflects much of the strength to the connective tissue involved in the arterial wall. Atherosclerosis is very common vessel disease and oxidative stress plays a pivotal role in the etiopathogenesis. Our objective was to examine the serum enzyme activity of prolidase and its possible relationships with oxidative stress parameters in obese subjects. METHODS Our present study was conducted 27 obese subjects and 26 age-matched healthy control subjects. The serum enzyme activity of prolidase in all study population was evaluated spectrophotometrically. Oxidative stress levels in obese subjects were analyzed with total antioxidant capacity (TAC) and total oxidant status (TOS) as well as oxidative stress index (OSI). RESULTS Obese subjects have higher serum TOS and OSI indicators as well as prolidase activity than those in control subjects (for all; p<0.001). Moreover, obese subjects have lower levels of TAC than in those in healthy subjects (p<0.001). In the Pearson's correlation analysis, enzyme activity of prolidase was positively related with TOS (p<0.001, r=0.529) and OSI (p<0.001, r=0.519) as well as BMI (p<0.001, r=0.692) and inversely related with TAC (p<0.05, r=-0.405) in obese subjects. CONCLUSIONS Increased serum prolidase activity and decreased antioxidant levels are likely to be a results of increased of oxidative stress levels in obese subjects. The significantly correlation between increased oxidative stress and increased prolidase activity may play a pivotal role in etiopathogenesis of atherosclerotic cardiovascular diseases in obese subjects.
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Affiliation(s)
- Mehmet Aslan
- Yuzuncu Yil University, Medical Faculty, Department of Internal Medicine, Van, Turkey.
| | - Ufuk Duzenli
- Yuzuncu Yil University, Medical Faculty, Department of Otorhinolaryngology, Van, Turkey
| | - Ramazan Esen
- Yuzuncu Yil University, Medical Faculty, Department of Internal Medicine, Van, Turkey
| | - Yasemin Usul Soyoral
- Yuzuncu Yil University, Medical Faculty, Department of Internal Medicine, Van, Turkey
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12
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Sultan A, Zheng Y, Trainor PJ, Siow Y, Amraotkar AR, Hill BG, DeFilippis AP. Circulating Prolidase Activity in Patients with Myocardial Infarction. Front Cardiovasc Med 2017; 4:50. [PMID: 28824924 PMCID: PMC5535509 DOI: 10.3389/fcvm.2017.00050] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Accepted: 07/14/2017] [Indexed: 12/20/2022] Open
Abstract
Background Collagen is a major determinant of atherosclerotic plaque stability. Thus, identification of differences in enzymes that regulate collagen integrity could be useful for predicting susceptibility to atherothrombosis or for diagnosing plaque rupture. In this study, we sought to determine whether prolidase, the rate-limiting enzyme of collagen turnover, differs in human subjects with acute myocardial infarction (MI) versus those with stable coronary artery disease (CAD). Methods We measured serum prolidase activity in 15 patients with stable CAD and 49 patients with acute MI, of which a subset had clearly defined thrombotic MI (n = 22) or non-thrombotic MI (n = 12). Prolidase activity was compared across study time points (at cardiac catheterization, T0; 6 h after presentation, T6; and at a quiescent follow-up, Tf/u) in acute MI and stable CAD subjects. We performed subgroup analyses to evaluate prolidase activity in subjects presenting with acute thrombotic versus non-thrombotic MI. Results Although prolidase activity was lower at T0 and T6 versus the quiescent phase in acute MI and stable CAD subjects (p < 0.0001), it was not significantly different between acute MI and stable CAD subjects at any time point (T0, T6, and Tf/u) or between thrombotic and non-thrombotic MI groups. Preliminary data from stratified analyses of a small number of diabetic subjects (n = 8) suggested lower prolidase activity in diabetic acute MI subjects compared with non-diabetic acute MI subjects (p = 0.02). Conclusion Circulating prolidase is not significantly different between patients with acute MI and stable CAD or between patients with thrombotic and non-thrombotic MI. Further studies are required to determine if diabetes significantly affects prolidase activity and how this might relate to the risk of MI.
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Affiliation(s)
- Adnan Sultan
- Department of Medicine, Division of Cardiovascular Medicine, University of Louisville, Louisville, KY, United States
| | - Yuting Zheng
- Department of Medicine, Division of Cardiovascular Medicine, University of Louisville, Louisville, KY, United States
| | - Patrick J Trainor
- Department of Medicine, Division of Cardiovascular Medicine, and Bioinformatics, University of Louisville, Louisville, KY, United States
| | - Yong Siow
- Department of Medicine, Division of Cardiovascular Medicine, University of Louisville, Louisville, KY, United States
| | - Alok R Amraotkar
- Department of Medicine, Division of Cardiovascular Medicine, University of Louisville, Louisville, KY, United States
| | - Bradford G Hill
- Department of Medicine, Division of Cardiovascular Medicine, University of Louisville, Louisville, KY, United States
| | - Andrew P DeFilippis
- Department of Medicine, Division of Cardiovascular Medicine, University of Louisville, Louisville, KY, United States.,KentuckyOne, Jewish Hospital, Johns Hopkins University, Baltimore, MD, United States
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Gulum M, Gumus K, Yeni E, Dogantekin E, Ciftci H, Akin Y, Savas M, Altunkol A. Blood and semen paraoxonase-arylesterase activities in normozoospermic and azoospermic men. Andrologia 2016; 49. [PMID: 28000956 DOI: 10.1111/and.12752] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/16/2016] [Indexed: 11/28/2022] Open
Abstract
Paraoxonase and arylesterase enzymes are corner stones of antioxidant defence. We aimed to compare azoospermic infertile men and normozoospermic individuals with respect to total antioxidant status (TAS), total oxidant status (TOS), oxidative stress index (OSI), paraoxonase and arylesterase levels in the blood and seminal plasma. Two-hundred consecutive infertility patients and voluntarily participated were included. In the normozoospermic group, TAS, PON, arylesterase values were statistically significantly higher when compared with those in the azoospermic group, while lower TOS and OSI levels were observed in the blood and seminal plasma of azoospermic group. In the semen analyses of normozoospermic group, the correlation between semen volume, sperm concentration, sperm motility and morphology and TAS, TOS, OSI, PON and arylesterase values was examined. A negative correlation was determined between semen volume and OSI. Levels of serum oxidative parameters were higher in the azoospermic group relative to normozoospermic group, but antioxidant parameters were lower than those of the normozoospermic group. Oxidative stress performs an essential role in the aetiology of male infertility by negatively influencing sperm quality and function. Assessment of blood and seminal plasma oxidative profiles might be an important tool to better evaluation of sperm reproductive capacity and functional competence.
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Affiliation(s)
- M Gulum
- Faculty of Medicine, Department of Urology, Hacettepe University, Ankara, Turkey
| | - K Gumus
- Department of Urology, Balikligol Hospital, Sanliurfa, Turkey
| | - E Yeni
- Faculty of Medicine, Department of Urology, Harran University, Sanliurfa, Turkey
| | - E Dogantekin
- Faculty of Medicine, Department of Urology, Hacettepe University, Ankara, Turkey
| | - H Ciftci
- Faculty of Medicine, Department of Urology, Harran University, Sanliurfa, Turkey
| | - Y Akin
- Faculty of Medicine, Department of Urology, Harran University, Sanliurfa, Turkey
| | - M Savas
- Department of Urology, Antalya Training and Research Hospital, Antalya, Turkey
| | - A Altunkol
- Department of Urology, Adana Training and Research Hospital, Adana, Turkey
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Pehlivan M, Ozün Ozbay P, Temur M, Yılmaz O, Verit FF, Aksoy N, Korkmazer E, Üstünyurt E. Is there any role of prolidase enzyme activity in the etiology of preeclampsia? J Matern Fetal Neonatal Med 2016; 30:1108-1113. [PMID: 27333996 DOI: 10.1080/14767058.2016.1205023] [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: 01/15/2023]
Abstract
OBJECTIVE To evaluate a relationship between preeclampsia and prolidase enzyme activity. METHODS A prospective cohort study of 41 pregnant women diagnosed with preeclampsia and 31 healthy pregnant women as control group was selected at Harran University Hospital Department of Obstetrics and Gynecology. The prolidase enzyme activity was analyzed in maternal and umbilical cord plasma, amniotic fluid and placental and umbilical cord tissues by Chinard method in addition to maternal serum levels of lactate dehydrogenase (LDH), serum glutamate pyruvate transaminase (SGPT) and serum glutamate oxaloacetate transaminase (SGOT). RESULTS A significant relationship was found between plasma prolidase activity (635 ± 83 U/L) (p = 0.007), umbilical cord plasma prolidase activity (610 ± 90 U/L) (p = 0.013), amniotic fluid prolidase activity (558 ± 100 U/L) (p = 0.001), umbilical cord tissue prolidase activity (4248 ± 1675 U/gr protein) (p = 0.013) and placental tissue prolidase activity (2116 ± 601 U/gr protein) (p = 0.001) in preeclamptic group when compared to healthy pregnant women. CONCLUSION There is a strong correlation between prolidase enzyme activity and preeclampsia. Prolidase enzyme activity may play a role in preeclampsia.
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Affiliation(s)
- Mustafa Pehlivan
- a Department of Obstetrics and Gynecology Aydın , Aydın Obstetrics and Pediatrics Hospital , Aydın , Turkey
| | - Pelin Ozün Ozbay
- b Department of Obstetrics and Gynecology Aydın , Aydın Private Ege Liva Hospital , Aydın , Turkey
| | - Muzaffer Temur
- c Department of Obstetrics and Gynecology , Bursa Yüksek İhtisas Training and Research Hospital , Bursa , Turkey
| | - Ozgur Yılmaz
- d Department of Obstetrics and Gynecology , Manisa Merkezefendi Hospital , Merkezefendi , Manisa , Turkey
| | - Fatma Ferda Verit
- e Faculty of Medicine , Department of Obstetrics and Gynecology , and
| | - Nurten Aksoy
- f Faculty of Medicine , Department of Clinical Biochemistry, Harran University , Sanliurfa , Turkey
| | - Engin Korkmazer
- c Department of Obstetrics and Gynecology , Bursa Yüksek İhtisas Training and Research Hospital , Bursa , Turkey
| | - Emin Üstünyurt
- c Department of Obstetrics and Gynecology , Bursa Yüksek İhtisas Training and Research Hospital , Bursa , Turkey
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Demir S, Bulut M, Atli A, Kaplan İ, Kaya MC, Bez Y, Özdemir PG, Sır A. Decreased Prolidase Activity in Patients with Posttraumatic Stress Disorder. Psychiatry Investig 2016; 13:420-6. [PMID: 27482243 PMCID: PMC4965652 DOI: 10.4306/pi.2016.13.4.420] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 09/06/2015] [Accepted: 09/17/2015] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE Many neurochemical systems have been implicated in the development of Posttraumatic Stress Disorder (PTSD). The prolidase enzyme is a cytosolic exopeptidase that detaches proline or hydroxyproline from the carboxyl terminal position of dipeptides. Prolidase has important biological effects, and to date, its role in the etiology of PTSD has not been studied. In the present study, we aimed to evaluate prolidase activity in patients with PTSD. METHODS The study group consisted of patients who were diagnosed with PTSD after the earthquake that occurred in the province of Van in Turkey in 2011 (n=25); the first control group consisted of patients who experienced the earthquake but did not show PTSD symptoms (n=26) and the second control group consisted of patients who have never been exposed to a traumatic event (n=25). Prolidase activities in the patients and the control groups were determined by the ELISA method using commercial kits. RESULTS Prolidase activity in the patient group was significantly lower when compared to the control groups. Prolidase activity was also significantly lower in the traumatized healthy subjects compared to the other healthy group (p<0.01). CONCLUSION The findings of the present study suggest that the decrease in prolidase activity may have neuroprotective effects in patients with PTSD.
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Affiliation(s)
- Süleyman Demir
- Department of Psychiatry, Dicle University, Diyarbakir, Turkey
| | - Mahmut Bulut
- Department of Psychiatry, Dicle University, Diyarbakir, Turkey
| | - Abdullah Atli
- Department of Psychiatry, Dicle University, Diyarbakir, Turkey
| | - İbrahim Kaplan
- Department of Biochemistry, Dicle University, Diyarbakir, Turkey
| | | | - Yasin Bez
- Department of Psychiatry, Marmara University, Istanbul, Turkey
| | | | - Aytekin Sır
- Department of Psychiatry, Dicle University, Diyarbakir, Turkey
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Altay MA, Ertürk C, Levent A, Çetin BV, Aksoy N. Serum prolidase activity and oxidative-antioxidative status in patients with developmental dysplasia of the hip and its relationship with radiographic severity. Redox Rep 2016; 22:227-234. [PMID: 27320745 DOI: 10.1080/13510002.2016.1196873] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
BACKGROUND We aimed to investigate serum prolidase activity and to investigate its association with oxidative-antioxidative status in patients with developmental dysplasia of the hip (DDH). METHODS Oxidative status parameters, including lipid hydroperoxide (LOOH), total oxidant status (TOS), and the oxidative stress index (OSI), and antioxidative status parameters, free sulfhydryl groups (Total -SH), and total antioxidative capacity (TAC), as well as serum prolidase activity were assessed in patients with DDH (n = 93), and in healthy controls (n = 82). The severity of dysplasia was evaluated according to the Tonnis grading system. RESULTS Serum prolidase activity and the oxidant parameters (LOOH, TOS, and OSI) were significantly higher and the antioxidant parameters (Total -SH and TAC) were significantly lower in patients with DDH compared to the controls (P < 0.005 for all). Serum prolidase activity was positively correlated with the Tonnis grade of DDH and LOOH, TOS, and OSI levels (P < 0.001 for all), but inversely correlated with total -SH and TAC levels (P < 0.001 for all). CONCLUSION Increased levels of serum prolidase activity, LOOH, TOS, and OSI, and decreased levels of total -SH and TAC, may be associated with DDH, and these parameters may be useful adjunctive tools to assess the severity of DDH.
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Affiliation(s)
- Mehmet Akif Altay
- a Department of Orthopaedics and Traumatology , Harran University School of Medicine , 63300 Sanliurfa , Turkey
| | - Cemil Ertürk
- a Department of Orthopaedics and Traumatology , Harran University School of Medicine , 63300 Sanliurfa , Turkey
| | - Ali Levent
- a Department of Orthopaedics and Traumatology , Harran University School of Medicine , 63300 Sanliurfa , Turkey
| | - Baki Volkan Çetin
- a Department of Orthopaedics and Traumatology , Harran University School of Medicine , 63300 Sanliurfa , Turkey
| | - Nurten Aksoy
- b Department of Clinical Biochemistry , Harran University School of Medicine , 63300 Sanliurfa , Turkey
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Relationship Between Echocardiographically Evaluated Aortic Stiffness and Prolidase Activity in Aortic Tissue of Patients with Critical Coronary Artery Disease. Arch Med Res 2016; 47:200-6. [DOI: 10.1016/j.arcmed.2016.06.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 06/28/2016] [Indexed: 11/18/2022]
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Güneş M, Bulut M, Demir S, İbiloğlu AO, Kaya MC, Atlı A, Kaplan İ, Camkurt MA, Sir A. Diagnostic performance of increased prolidase activity in schizophrenia. Neurosci Lett 2016; 613:36-40. [DOI: 10.1016/j.neulet.2015.12.036] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Revised: 11/22/2015] [Accepted: 12/17/2015] [Indexed: 12/22/2022]
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Sabuncu T, Boduroglu O, Eren MA, Torun AN, Aksoy N. The Value of Serum Prolidase Activity in Progression of Microalbuminuria in Patients With Type 2 Diabetes Mellitus. J Clin Lab Anal 2015; 30:557-62. [PMID: 26666214 DOI: 10.1002/jcla.21902] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2012] [Revised: 03/24/2014] [Accepted: 09/21/2015] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Prolidase is a cytosolic exopeptidase that plays a pivotal role in collagen turnover. Diabetic nephropathy (DN) is associated with structural changes in glomerular basement membrane accompanied with increased amounts of collagen. Prolidase is known to be abundant in kidney and collagen accumulation is increased in DN, so we aimed to determine the value of serum prolidase activity (SPA) in predicting the progression of nephropathy in type 2 diabetes mellitus (DM). METHODS Thirty type 2 DM patients having microalbuminuria (microalbuminuric group), 30 type 2 DM patients without albuminuria (normoalbuminuric group), and 28 healthy controls (control group) were enrolled. Study groups had similar age, sex distribution, and body mass index (BMI). RESULTS Metabolic parameters, SPA and urinary microalbumin were determined. SPA was significantly higher in microalbuminuric group when compared with normoalbuminuric and control groups (P = 0.05 and P < 0.001, respectively). Triglyceride levels were significantly higher and high density lipoprotein cholesterol (HDL-C) levels were significantly lower in microalbuminuric group compared to control group (Both P < 0.05). SPA showed a negative correlation with HDL-C level and a positive correlation with urinary albumin excretion (r = -0.219, P < 0.05 and r = 0.39, P < 0.001 respectively). In regression analysis, albumin excretion was the sole parameter influencing SPA. CONCLUSION SPA appears to be higher in type 2 DM patients having microalbuminuria compared to patients without microalbuminuria and healthy controls. The pathophysiological role and the significance of SPA in predicting DN need to be further evaluated.
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Affiliation(s)
- Tevfik Sabuncu
- Department of Endocrinology and Metabolic Diseases, Harran University School of Medicine, Sanliurfa, Turkey
| | - Omer Boduroglu
- Department of Internal Medicine, Harran University School of Medicine, Sanliurfa, Turkey
| | - Mehmet Ali Eren
- Department of Endocrinology and Metabolic Diseases, Harran University School of Medicine, Sanliurfa, Turkey.
| | - Ayse Nur Torun
- Department of Endocrinology and Metabolic Diseases, Harran University School of Medicine, Sanliurfa, Turkey
| | - Nurten Aksoy
- Department of Clinical Biochemistry, Harran University School of Medicine, Sanliurfa, Turkey
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Evaluation of serum prolidase activity in patients with slow coronary flow. ADVANCES IN INTERVENTIONAL CARDIOLOGY 2015; 11:206-11. [PMID: 26677361 PMCID: PMC4631735 DOI: 10.5114/pwki.2015.54015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Revised: 04/12/2014] [Accepted: 05/05/2014] [Indexed: 01/26/2023] Open
Abstract
INTRODUCTION Slow coronary flow (SCF) is described as the slow passage of contrast to distal coronaries despite anatomically normal coronary arteries. It has been shown that increased serum prolidase activity (SPA) correlates with collagen turnover. Increased collagen turnover might be associated with the development of atherosclerotic plaques. AIM To investigate the relationship between serum prolidase activity and slow coronary flow. MATERIAL AND METHODS This cross-sectional study included 40 SCF patients (mean age: 55.0 ±9.5 years, 20 females) and 40 controls (mean age: 53.9 ±8.2 years, 21 females) with normal coronary anatomy and normal coronary flow. The Thrombolysis in Myocardial Infarction (TIMI) frame-count (TFC) method was used for SCF diagnosis. Serum prolidase activity was measured spectrophotometrically, and the relevant parameters were compared between the groups. RESULTS There were no statistically significant differences between the SCF and control groups in terms of basic demographic, clinical, and laboratory data. However, the SPA was significantly higher in the SCF group compared to the control (702.7 ±13.8 and 683.9 ±13.2 respectively, p<0.001). Serum prolidase activity was significantly correlated with the mean TFC (r=0.463, p<0.001). The overall findings of this study support the predictive accuracy of the serum prolidase activity in our cohort, with a statistically significant ROC value of 681.3. CONCLUSIONS Our study showed that SPA was increased in SCF patients. The activity of this enzyme was significantly correlated with the mean TFC.
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Kılıç R, Cumurcu T, Sancaktar E, Evliyaoğlu O, Sezer H. Systemic Prolidase Activity and Oxidative Stress in Keratoconus. Curr Eye Res 2015; 41:28-33. [PMID: 25658899 DOI: 10.3109/02713683.2015.1004717] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AIM Our aim was to evaluate the serum prolidase activity, total antioxidant capacity (TAC) and total oxidant status (TOS) in patients with keratoconus. MATERIAL AND METHOD A total 69 keratoconus patients and 72 control subjects with similar age and gender were evaluated within the scope of this study. The keratoconus group was divided into four stages with the modified Krumeich classification. Serum prolidase activity, TAC and TOS were measured and compared between the patient and control groups. RESULTS The median serum prolidase enzyme activity value was 528.3 (684.1-416.7) U/L in the keratoconus group and 606.2 (812.9-482.3) U/L in the control group. The difference between the groups was statistically significant (p = 0.027). The median TAC value was 1.24 (1.37-1.05) mmol/L in the keratoconus group and 1.29 (1.38-1.18) mmol/L in the control group. The median TOS value was 2 (4-1) μmol/L in the keratoconus group and 3 (4-2) μmol/L in the control group. There was no statistically significant difference between the two groups in terms of TAC or TOS (p = 0.113 and p = 0.366, respectively). There was a positive correlation between TAC and TOS in keratoconus group but not in the control group (r = 0.670, p = 0.001 and r = 0.141, p = 0.241, respectively). No significant relationship was seen between the keratoconus group stages and serum prolidase activity, TAS or TOS (p = 0.894, p = 0.155 and p = 0.381, respectively). CONCLUSION In conclusion, a significant relationship was found between decreased serum prolidase activity and keratoconus but there was no significant relationship between keratoconus and serum TAC or TOS.
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Affiliation(s)
- Raşit Kılıç
- a Department of Ophthalmology , Sivas Numune Hospital , Sivas , Turkey
| | - Tongabay Cumurcu
- b Department of Ophthalmology , Inonu University Faculty of Medicine , Malatya , Turkey
| | - Enver Sancaktar
- c Department of Biochemistry , Cumhuriyet University Faculty of Medicine , Sivas , Turkey
| | - Osman Evliyaoğlu
- d Department of Biochemistry , Dicle University Faculty of Medicine , Diyarbakır , Turkey and
| | - Hafize Sezer
- e Department of Biostatistics , Cumhuriyet University Faculty of Medicine , Sivas , Turkey
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Gecit I, Meral I, Aslan M, Kocyigit A, Celik H, Taskın A, Kaba M, Pirincci N, Gunes M, Taken K, Demir H, Uyuklu M, Ceylan K. Peripheral mononuclear leukocyte DNA damage, plasma prolidase activity, and oxidative status in patients with benign prostatic hyperplasia. Redox Rep 2015; 20:163-9. [PMID: 25551736 DOI: 10.1179/1351000214y.0000000121] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
OBJECTIVES Prolidase plays a major role in collagen turnover, matrix remodeling, and cell growth. Benign prostatic hyperplasia (BPH) may be associated with an increased extracellular matrix deposition. Therefore, the present study was designed to investigate the plasma prolidase activity, oxidative status, and peripheral mononuclear leukocyte DNA damage in patients with BPH. PATIENTS AND METHODS Twenty-six male patients with BPH and 24 healthy male subjects were included in this study. Blood samples were collected from antecubital vein after an overnight fasting period, and the plasma was separated. Plasma prolidase activity, total antioxidant capacity (TAC), total oxidant status (TOS), and oxidative stress index (OSI) were determined. The peripheral lymphocyte oxidative DNA damage was determined using an alkaline single cell gel electrophoresis assay (comet assay). RESULTS The plasma prolidase activity, TOS levels, OSI values, and peripheral mononuclear leukocyte DNA damage were significantly higher (P < 0.001), while the TAC levels were significantly lower (P < 0.001) in patients with BPH than controls. In BPH patients, the prolidase activity was significantly associated with TAC levels (r = -0.366, P < 0.05), TOS levels (r = 0.573, P < 0.001), and OSI (r = 0.618, P < 0.001) and peripheral mononuclear leukocyte DNA damage (r = 0.461, P < 0.001). CONCLUSIONS Our results showed that BPH might be associated with an increased oxidative stress, and also an increased plasma prolidase activity. Increased prolidase activity might play an important role in the etiopathogenesis and/or progression of BPH.
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Incebiyik A, Vural M, Camuzcuoglu A, Camuzcuoglu H, Hilali NG, Taskin A, Aydin H, Aksoy N. Comparison of tissue prolidase enzyme activity and serum oxidative stress level between pregnant women with placental abruption and those with a healthy pregnancy. Arch Gynecol Obstet 2014; 291:805-9. [DOI: 10.1007/s00404-014-3481-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Accepted: 09/12/2014] [Indexed: 11/28/2022]
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Savas E, Aksoy N, Pehlivan Y, Sayiner ZA, Öztürk ZA, Tabur S, Örkmez M, Onat AM. Evaluation of oxidant and antioxidant status and relation with prolidase in systemic sclerosis. Wien Klin Wochenschr 2014; 126:341-6. [DOI: 10.1007/s00508-014-0534-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Accepted: 03/02/2014] [Indexed: 10/25/2022]
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Gonullu H, Aslan M, Karadas S, Kati C, Duran L, Milanlioglu A, Aydin MN, Demir H. Serum prolidase enzyme activity and oxidative stress levels in patients with acute hemorrhagic stroke. Scandinavian Journal of Clinical and Laboratory Investigation 2014; 74:199-205. [PMID: 24456419 DOI: 10.3109/00365513.2013.873949] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
BACKGROUND It has been indicated that oxidative damage contributes to secondary brain injury in both ischemic and hemorrhagic stroke patients. Collagen is a major component of the extracellular matrix, and prolidase plays a role in collagen synthesis. The aim of this study was to evaluate the serum prolidase activity, nitric oxide (NO) levels, total antioxidant capacity (TAC) and total oxidant status (TOS) in patients with acute hemorrhagic stroke. METHODS Twenty-five patients with acute hemorrhagic stroke and 25 controls were enrolled. Serum prolidase activity, catalase activity, NO levels, TAC and TOS were measured spectrophotometrically. Oxidative stress index (OSI) was calculated. RESULTS Serum TAC levels and catalase activity were significantly lower in acute hemorrhagic stroke patients than controls (both, p < 0.001), while NO levels, TOS levels, OSI values and prolidase activity were significantly higher (all, p < 0.01). When patients with acute hemorrhagic stroke were divided according to gender, no differences were observed between females and males in respect to serum prolidase enzyme activity, NO levels, TAC levels, TOS levels and OSI values (all, p > 0.05). CONCLUSIONS Findings from the study suggest an association between increased oxidative stress levels, decreased antioxidant levels and increased prolidase enzyme activity in patients with acute hemorrhagic stroke compared with controls. More studies are needed to elucidate mechanistic pathways on oxidative stress in patients with acute hemorrhagic stroke.
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Affiliation(s)
- Hayriye Gonullu
- Department of Emergency Medicine, Yuzuncu Yıl University , Van , Turkey
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Tabur S, Oguz E, Eren MA, Korkmaz H, Savas E, Aksoy N, Sabuncu T. Serum prolidase activity is associated with non-diabetic metabolic syndrome. Diabetol Metab Syndr 2014; 6:142. [PMID: 25540672 PMCID: PMC4276100 DOI: 10.1186/1758-5996-6-142] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Accepted: 12/11/2014] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE The aim of this study was to determine the role of serum prolidase activity and the possible association with oxidative stress parameters in non-diabetic metabolic syndrome. METHODS 30 obese patients without metabolic syndrome (MetS), 34 non-diabetic obese patients with MetS, and 23 volunteer control subjects were enrolled in the study. Fasting plasma glucose (FPG), plasma glucose following 75 g glucose administration, high-density lipoprotein- cholesterol (HDL-C), high-density lipoprotein- cholesterol (LDL-C), total cholesterol, triglyceride (TG), total antioxidant status (TAS), total oxidative status (TOS), oxidative stress index (OSI), and prolidase activities of all subjects were analyzed. RESULTS Prolidase levels was significantly higher in MetS group compared to both obese and control groups (p < 0.001 and p < 0.05 respectively). Prolidase was also higher in the obese group than in the control group (p < 0.05). Prolidase was negatively correlated with TAS and HDL-C (r = -0,362, p < 0.001; r = -0.320, p < 0.01, respectively) and positively correlated with BMI, weight, waist-c, SBP, DBP, TG, TC, LDL-C. CONCLUSION Prolidase activity may have a role in the pathogenesis of metabolic syndrome.
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Affiliation(s)
- Suzan Tabur
- />Faculty of Medicine, Department of Internal Medicine, Division of Endocrinology, Gaziantep University, 27100, Sahinbey, Gaziantep, Turkey
| | - Elif Oguz
- />Faculty of Medicine, Department of Medical Pharmacology, Harran University, 63300 Sanliurfa, Turkey
| | - Mehmet Ali Eren
- />Faculty of Medicine, Department of Internal Medicine, Division of Endocrinology, Harran University, 63300 Sanliurfa, Turkey
| | - Hakan Korkmaz
- />Faculty of Medicine, Department of Internal Medicine, Division of Endocrinology, Gaziantep University, 27100, Sahinbey, Gaziantep, Turkey
| | - Esen Savas
- />Faculty of Medicine, Department of Internal Medicine, Gaziantep University, 27100 Sahinbey, Gaziantep Turkey
| | - Nurten Aksoy
- />Faculty of Medicine, Department of Clinical Biochemistry, Harran University, 63300 Sanliurfa, Turkey
| | - Tevfik Sabuncu
- />Faculty of Medicine, Department of Internal Medicine, Division of Endocrinology, Harran University, 63300 Sanliurfa, Turkey
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Serum prolidase may not accurately provide information to clinicians about the psoriasis activity. Arch Dermatol Res 2013; 305:551-2. [DOI: 10.1007/s00403-013-1363-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Revised: 04/15/2013] [Accepted: 04/16/2013] [Indexed: 11/25/2022]
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Hilali N, Vural M, Camuzcuoglu H, Camuzcuoglu A, Aksoy N. Increased prolidase activity and oxidative stress in PCOS. Clin Endocrinol (Oxf) 2013; 79:105-10. [PMID: 23163753 DOI: 10.1111/cen.12110] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Revised: 11/06/2012] [Accepted: 11/14/2012] [Indexed: 11/26/2022]
Abstract
AIM Matrix metalloproteinases (MMPs) have been considered to have a role in various pathological processes, including inflammatory response, cardiovascular disease and recently also in ovarian dysfunction. Since prolidase could be accepted as a matrix metalloproteinase, on the biochemical level, we aimed to evaluate serum prolidase activity and oxidative-antioxidative status in patients with polycystic ovary syndrome (PCOS) and healthy individuals. MATERIALS AND METHODS Thirty-three PCOS patients and 28 healthy nonhyperandrogenic women were studied. Levels of prolidase activity, total antioxidant status (TAS), total oxidant status (TOS), oxidative stress index (OSI), luteinizing hormone (LH), follicle-stimulating hormone (FSH), total testosterone (T) and prolactin (PRL) were calculated. RESULTS Levels of prolidase activities, total oxidant status, oxidative stress index, LH, PRL, and T were significantly higher in PCOS group than in the control group. Total antioxidant status levels were lower in PCOS group than healthy group, but it was not statistically significant. There was no significant difference between PCOS and control groups in term of FSH. CONCLUSION Women with PCOS have increased serum prolidase activity and oxidative stress. It might be hypothesized that elevated serum prolidase activity and oxidative stress may be associated with increased cardiovascular risk in PCOS and/or menstrual irregularities associated with this syndrome.
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Affiliation(s)
- Nese Hilali
- Department of Obstetrics and Gynecology, University of Harran, Sanliurfa, Turkey.
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Sezer U, Erciyas K, Üstün K, Pehlivan Y, Ziya Şenyurt S, Aksoy N, Tarakçıoğlu M, Taysı S, Onat AM. Effect of Chronic Periodontitis on Oxidative Status in Patients With Rheumatoid Arthritis. J Periodontol 2013; 84:785-92. [DOI: 10.1902/jop.2012.120179] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Eren MA, Torun AN, Tabur S, Ulas T, Demir M, Sabuncu T, Aksoy N. Serum prolidase activity in diabetic foot ulcers. Acta Diabetol 2013; 50:423-7. [PMID: 23242638 DOI: 10.1007/s00592-012-0448-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2012] [Accepted: 12/03/2012] [Indexed: 12/19/2022]
Abstract
Impaired wound healing is an important problem in diabetes mellitus; however, its pathogenesis remains unclear. We aimed to evaluate serum prolidase activity (SPA), an important marker of collagen turnover, in subjects with and without diabetic foot ulcers as compared with healthy controls. Twenty-seven patients with diabetic foot ulcers (foot ulcer group), 27 patients without diabetic foot ulcers (diabetic control group) and 27 healthy controls were enrolled. The study groups had similar age, sex distribution and body mass index. Metabolic and inflammatory parameters as well as SPA were determined. The diabetic foot ulcer group had significantly higher SPA (both p < 0.001) when compared with the diabetic and the healthy control groups. SPA showed a positive correlation with high-sensitive C-reactive protein and a negative correlation with high-density lipoprotein cholesterol levels (r = 0.313, p = 0.021 and r = -0.233, p = 0.036, respectively). No correlation was detected between SPA and glycaemic parameters. SPA appears to be higher in patients with diabetic foot ulcers when compared with patients without diabetic foot ulcers and healthy controls. The underlying mechanisms of elevated SPA and its clinical significance in predicting the natural course of wound healing in diabetic foot ulcers needs to be further evaluation.
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Affiliation(s)
- Mehmet Ali Eren
- Department of Endocrinology, School of Medicine, Harran University, Sanliurfa, Turkey.
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Aksakal E, Tanboga IH, Kurt M, Kaygın MA, Kaya A, Isik T, Ekinci M, Sevimli S, Acikel M. The relation of serum gamma-glutamyl transferase levels with coronary lesion complexity and long-term outcome in patients with stable coronary artery disease. Atherosclerosis 2012; 221:596-601. [DOI: 10.1016/j.atherosclerosis.2012.01.044] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2011] [Revised: 01/17/2012] [Accepted: 01/30/2012] [Indexed: 11/28/2022]
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Vural M, Camuzcuoglu H, Toy H, Camuzcuoglu A, Aksoy N. Oxidative stress and prolidase activity in women with uterine fibroids. J OBSTET GYNAECOL 2011; 32:68-72. [DOI: 10.3109/01443615.2011.633718] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Uzar E, Tamam Y, Evliyaoglu O, Tuzcu A, Beyaz C, Acar A, Aydın B, Tasdemir N. Serum prolidase activity and oxidative status in patients with diabetic neuropathy. Neurol Sci 2011; 33:875-80. [DOI: 10.1007/s10072-011-0857-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2011] [Accepted: 11/10/2011] [Indexed: 12/25/2022]
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Altay MA, Erturk C, Aksoy N, Taskın A, Isıkan UE. A preliminary study pointing out the role of serum prolidase activity and oxidative-antioxidative status parameters during the treatment process of patients with idiopathic clubfoot. Scandinavian Journal of Clinical and Laboratory Investigation 2011; 71:576-82. [DOI: 10.3109/00365513.2011.596661] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Gumus S, Yaman H, Ozcan O, Deniz O, Karaman B, Cakir E, Tozkoparan E, Ozkan M, Bilgic H. Serum prolidase activity in patients with pulmonary tuberculosis. Scandinavian Journal of Clinical and Laboratory Investigation 2011; 71:467-72. [PMID: 21722016 DOI: 10.3109/00365513.2011.587021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AIM To investigate serum prolidase activity (SPA) in patients with pulmonary tuberculosis (PTB). MATERIAL AND METHODS Twenty-nine PTB patients and 32 controls were included in the study. PTB patients (cavitary and non-cavitary) and controls were compared in terms of mean SPA. Correlations were evaluated between SPA and acute phase reactants. RESULTS Mean SPA was significantly higher in PTB patients than in the control group. Mean SPA was significantly higher in patients with cavitary TB than non-cavitary TB. Mean SPA in patients with mild PTB was lower than patients with moderate and severe disease. We found significant correlations between SPA and CRP, ESR, albumin, platelet counts, HDL-cholesterol and LDH activity. CONCLUSION This study has shown that PTB patients have higher SPA than controls. The increase in SPA might be related to tissue destruction, increased immunoglobulin, complement levels and increased fibroblastic activity; all of which are involved in the natural history of PTB.
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Affiliation(s)
- Seyfettin Gumus
- Department of Pulmonary Medicine, Gulhane Military Medical Academy, Ankara, Turkey.
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Abstract
We aimed to find out that whether collagen turnover is altered in the context of Legg-Calve-Perthes disease (LCPD) by evaluating serum prolidase activity. We also investigated the correlation between collagen turnover and oxidative-antioxidative status in LCPD. Plasma prolidase activity, total oxidant status (TOS), total antioxidant capacity, and oxidative stress index (OSI) were determined for 39 patients with LCPD and 40 healthy controls. Serum prolidase activity, TOS, and OSI were higher, but TAC was lower in patients with LCPD compared with controls. Prolidase activity was positively correlated with TOS and OSI levels. Serum prolidase activity is significantly associated with LCPD.
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Oxidative stress may affect meat quality by interfering with collagen turnover by muscle fibroblasts. Food Res Int 2011. [DOI: 10.1016/j.foodres.2010.12.002] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Lillvis JH, Kyo Y, Tromp G, Lenk GM, Li M, Lu Q, Igo RP, Sakalihasan N, Ferrell RE, Schworer CM, Gatalica Z, Land S, Kuivaniemi H. Analysis of positional candidate genes in the AAA1 susceptibility locus for abdominal aortic aneurysms on chromosome 19. BMC MEDICAL GENETICS 2011; 12:14. [PMID: 21247474 PMCID: PMC3037298 DOI: 10.1186/1471-2350-12-14] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2010] [Accepted: 01/19/2011] [Indexed: 11/10/2022]
Abstract
BACKGROUND Abdominal aortic aneurysm (AAA) is a complex disorder with multiple genetic risk factors. Using affected relative pair linkage analysis, we previously identified an AAA susceptibility locus on chromosome 19q13. This locus has been designated as the AAA1 susceptibility locus in the Online Mendelian Inheritance in Man (OMIM) database. METHODS Nine candidate genes were selected from the AAA1 locus based on their function, as well as mRNA expression levels in the aorta. A sample of 394 cases and 419 controls was genotyped for 41 SNPs located in or around the selected nine candidate genes using the Illumina GoldenGate platform. Single marker and haplotype analyses were performed. Three genes (CEBPG, PEPD and CD22) were selected for DNA sequencing based on the association study results, and exonic regions were analyzed. Immunohistochemical staining of aortic tissue sections from AAA and control individuals was carried out for the CD22 and PEPD proteins with specific antibodies. RESULTS Several SNPs were nominally associated with AAA (p < 0.05). The SNPs with most significant p-values were located near the CCAAT enhancer binding protein (CEBPG), peptidase D (PEPD), and CD22. Haplotype analysis found a nominally associated 5-SNP haplotype in the CEBPG/PEPD locus, as well as a nominally associated 2-SNP haplotype in the CD22 locus. DNA sequencing of the coding regions revealed no variation in CEBPG. Seven sequence variants were identified in PEPD, including three not present in the NCBI SNP (dbSNP) database. Sequencing of all 14 exons of CD22 identified 20 sequence variants, five of which were in the coding region and six were in the 3'-untranslated region. Five variants were not present in dbSNP. Immunohistochemical staining for CD22 revealed protein expression in lymphocytes present in the aneurysmal aortic wall only and no detectable expression in control aorta. PEPD protein was expressed in fibroblasts and myofibroblasts in the media-adventitia border in both aneurysmal and non-aneurysmal tissue samples. CONCLUSIONS Association testing of the functional positional candidate genes on the AAA1 locus on chromosome 19q13 demonstrated nominal association in three genes. PEPD and CD22 were considered the most promising candidate genes for altering AAA risk, based on gene function, association evidence, gene expression, and protein expression.
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Affiliation(s)
- John H Lillvis
- Center for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, Michigan, USA
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Sezen Y, Bas M, Altiparmak H, Yildiz A, Buyukhatipoglu H, Faruk Dag O, Kaya Z, Aksoy N. Serum prolidase activity in idiopathic and ischemic cardiomyopathy patients. J Clin Lab Anal 2010; 24:213-8. [PMID: 20626024 DOI: 10.1002/jcla.20388] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Idiopathic and ischemic dilated cardiomyopathies (DCM) are the most common types of DCM, and both exhibit the same histopathological feature of fibrosis. Prolidase is an enzyme that serves a rate-limiting function in collagen turnover. Several studies have shown increased prolidase activity in fibrosis, though controversy persists. In this study, we measured prolidase enzyme activity in patients with idiopathic or ischemic DCM and in healthy controls, making this, to our knowledge, the first study to do so. What we found is that serumprolidase activity was significantly lower in both DCM groups relative to healthy volunteers and lower in ischemic DCM than idiopathic. These intriguing results could be attributed either to decreased collagen turnover in the heart tissues in which DCM develops, a result of diminished functional heart tissue, or to decreased physical activity levels among DCM patients stemming from their heart failure. Either way, further studies are needed to verify and clarify our results.
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Affiliation(s)
- Yusuf Sezen
- Department of Cardiology, Harran University School of Medicine, Sanliurfa, Turkey.
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Akcakoyun M, Pala S, Esen O, Acar G, Kargin R, Emiroglu Y, Tigen K, Ozcan O, Ipcioglu OM, Esen AM. Dilatation of the ascending aorta is associated with low serum prolidase activity. TOHOKU J EXP MED 2010; 220:273-7. [PMID: 20383038 DOI: 10.1620/tjem.220.273] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The pathogenesis of ascending aortic aneurysm (AAA) involves many factors; elastin degradation could lead to initial dilation, and changes in the collagen structure predispose the aneurysm to rupture. Prolidase is an enzyme that catalyzes the final step of collagen breakdown by liberating free proline for collagen recycling. The enzyme activity may be a step-limiting factor in the regulation of collagen biosynthesis. Consequently, in this study we sought to determine serum prolidase activity in AAAs. Eighty consecutive patients with the diagnosis of hypertension or chest pain, referred for echocardiographic examination in the outpatient cardiology clinic, were included in the study. The subjects were grouped into three categories according to the aortic diameter; control group without aortic dilatation (<or= 3.7 cm, n = 20), medium (3.8-4.3 cm, n = 36), and large (>or= 4.4 cm, n = 24) group. We assessed the association of serum prolidase activity with the presence and severity of AAAs, clinical characteristics and laboratory parameters. Serum prolidase activity was significantly higher in the patients without aortic dilatation (1386.3 +/- 320.5 U/L) compared to medium group (1212.0 +/- 282.5 U/L) and large group (1072.2 +/- 192.3 U/L): control group vs. medium group (P = 0.023) and control group vs. large group (P < 0.001). Ascending aortic diameter was inversely correlated with serum prolidase activity and in multivariate analysis, serum prolidase activity was the only independent predictor of aortic dilatation (beta = -0.44, P = 0.006). In conclusion, the presence of AAAs is associated with low serum prolidase activity.
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Affiliation(s)
- Mustafa Akcakoyun
- Department of Cardiology, Kartal Kosuyolu Yuksek Ihtisas Heart-Education and Research Hospital, Istanbul, Turkey.
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Comparison of prolidase enzyme activities of maternal serum and placental tissue in patients with early pregnancy failure. Arch Gynecol Obstet 2010; 283:953-8. [DOI: 10.1007/s00404-010-1482-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2010] [Accepted: 04/12/2010] [Indexed: 11/25/2022]
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Savas M, Yeni E, Verit A, Gulum M, Aksoy N, Ciftci H, Celik H, Altunkol A, Oncel H. Acute effect of phosphodiesterase type 5 inhibitor on serum oxidative status and prolidase activities in men with erectile dysfunction. Clinics (Sao Paulo) 2010; 65:1311-4. [PMID: 21340220 PMCID: PMC3020342 DOI: 10.1590/s1807-59322010001200014] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2010] [Accepted: 09/27/2010] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVES To investigate the acute effect of phosphodiesterase type 5 (PDE5) inhibitor on erectile dysfunction by evaluating serum oxidative status and prolidase activity. METHODS Serum samples of 36 patients with erectile dysfunction and 30 control cases were analyzed for total antioxidant status, total oxidant status, and prolidase activity, before and after the administration of tadalafil citrate. RESULTS Before and after tadalafil citrate administration, serum total antioxidant status, total oxidant status, and prolidase were 1.1+0.0 vs. 1.6 + 0.0 umol H₂O₂ Eq/L, 10.3+1.1 vs. 6.9 + 1.2 umol H₂O₂ Eq/L, and 236.4+19.5 vs. 228.2 + 19.2 U/L, respectively (p < 0.0001 for all). CONCLUSIONS Evaluation of serum oxidative status and prolidase activity confirmed the beneficial acute effects of PDE5 inhibitor in patients with erectile dysfunction.
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Affiliation(s)
- Murat Savas
- Department of Urology, School of Medicine, Harran University, Sanliurfa, Turkey.
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Toy H, Camuzcuoglu H, Arioz DT, Kurt S, Celik H, Aksoy N. Serum prolidase activity and oxidative stress markers in pregnancies with intrauterine growth restricted infants. J Obstet Gynaecol Res 2009; 35:1047-53. [DOI: 10.1111/j.1447-0756.2009.01063.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Camuzcuoglu H, Arioz DT, Toy H, Kurt S, Celik H, Aksoy N. Assessment of preoperative serum prolidase activity in epithelial ovarian cancer. Eur J Obstet Gynecol Reprod Biol 2009; 147:97-100. [PMID: 19695763 DOI: 10.1016/j.ejogrb.2009.07.012] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2009] [Revised: 07/16/2009] [Accepted: 07/21/2009] [Indexed: 12/16/2022]
Abstract
OBJECTIVE Prolidase is a cytosolic exopeptidase that cleaves iminodipeptides with C-terminal proline and hydroxyproline and plays a major role in collagen turnover. The aim of this study was to evaluate preoperative serum prolidase activity, total oxidant status (TOS), and total antioxidant capacity (TAC) in patients with newly diagnosed epithelial ovarian cancer (EOC). STUDY DESIGN Serum prolidase activity, TOS, and TAC were measured spectrophotometrically in both EOC cases (n=28) and controls (n=28). RESULTS Preoperative serum prolidase activity and TOS were significantly higher in patients with EOC compared to controls (p=0.009 and 0.008, respectively), whereas TAC was significantly lower in cases (p<0.001). A significant positive correlation was found between the stage, grade, and CA-125 level of EOC and serum prolidase activity (rho=0.466, p=0.012; rho=0.501, p=0.007; and rho=0.447, p=0.017, respectively) and TOS (rho=0.588, p=0.001; rho=0.412, p=0.029; and rho=0.568, p=0.002, respectively). In contrast, there was a negative correlation between TAC and the stage, grade, and CA-125 level of EOC (rho=-0.555, p=0.002; rho=-0.566, p=0.002; and rho=-0.581, p=0.001, respectively). CONCLUSION Findings of the present study demonstrate that serum prolidase activity is significantly associated with the stage, tumor grade, and preoperative CA-125 level of EOC.
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Affiliation(s)
- Hakan Camuzcuoglu
- Faculty of Medicine, Department of Obstetrics and Gynecology, Harran University, Sanliurfa, Turkey.
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