1
|
Stabil Kronik Obtrüktif Akciğer Hastalığı Hastalarında Serum Prolidaz ve Karbonik Anhidraz III Düzeylerinin Klinik Önemi. JOURNAL OF CONTEMPORARY MEDICINE 2022. [DOI: 10.16899/jcm.1107527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
GİRİŞ: Kronik obstrüktif akciğer hastalığı (KOAH), geri dönüşümsüz hava yolu akış kısıtlaması ve kronik hava yolu iltihabı ile karakterize bir hastalıktır. Kollajen yıkımının bir göstergesi olan serum prolidaz enzimi ile asit-baz regülasyonunda önemli işlevi olan karbonik anhidraz (CA) III enziminin KOAH'lı hastalarda klinik önemini araştırmayı amaçladık.
GEREÇ VE YÖNTEM: Bu çalışmaya 56 stabil KOAH'lı hasta ile sigara öyküsü ve ek hastalığı olmayan 32 sağlıklı olgu dahil edildi. Her iki grup arasında serum CA III ve prolidaz enzim düzeyleri karşılaştırıldı.
BULGULAR: Prolidaz enzim düzeyleri açısından iki grup arasında istatistiksel fark bulunmadı (p=0.831). KOAH grubunda CA III düzeylerinde istatistiksel olarak anlamlı bir artış vardı (p=0.001). KOAH hastalarında CA III enzimi düzeyi ile kanda kısmi karbondioksit basıcı (pCO2) arasında orta derecede pozitif, kanda kısmi oksijen basıncı (pO2) arasında ise negatif korelasyon vardı (r:0.302, p<0.025; r:-0.314, p:0.02).
SONUÇLAR: CA III ile KOAH arasında önemli bir klinik ilişki olduğunu ve bu nedenle CA III'ün KOAH takibinde aday bir biyobelirteç olabileceğini düşünüyoruz.
Collapse
|
2
|
YILMAZ T, TÜZÜN D, ŞAHİN M, KILINÇ M. THE RELATIONSHIP BETWEEN OXIDATIVE STRESS AND SERUM PROLIDASE ACTIVITY IN PATIENTS WITH DIABETIC NEPHROPATHY, RETINOPATHY AND NEUROPATHY. KAHRAMANMARAŞ SÜTÇÜ İMAM ÜNIVERSITESI TIP FAKÜLTESI DERGISI 2022. [DOI: 10.17517/ksutfd.1079948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Amaç: Diyabetin mikrovasküler komplikasyonlarında oksidatif stresin belirteçlerini incelemek, prolidazın oksidatif stres göstergeleriyle ilişkisini incelemek, prolidazın prediktif değer olarak kullanılabilirliliğini araştırmaktır.
Gereç ve Yöntemler: Çalışmaya 112 tip 2 Diyabetes Mellitusu (DM) olan hasta ve 44 sağlıklı kontrol birey alındı. Hastaların ayrıntılı anamnezleri alınıp fizik muayeneleri yapıldı. Açlık plazma glukozu (APG), hemoglobin A1c (HbA1C), kreatinin, spot idrarda mikrototal protein düzeyleri bakıldı. Göz dibi muayenesi ile diyabetik retinopati varlığı araştırıldı. Nöropati varlığı açısından nörolojik muayeneleri yapıldı. Ayrıca tüm hastaların sabah alınan kan örneğinde oksidatif stress için katalaz (CAT), superoksit dismutaz(SOD), glutatyon peroksidaz (GPx), malondialdehit (MDA), nitrik oksit(NO), serum prolidaz aktivitesi ölçümü yapıldı.
Bulgular: Tip 2 DM olan hastaların 80’inde (%71,42) komplikasyon mevcut iken 41’inde (%28,58) komplikasyon yoktu. Açlık plazma glukozu diyabetik komplikasyonu olan grupta diğer gruplara anlamlı olarak yüksekti (p
Collapse
Affiliation(s)
- Tuğba YILMAZ
- KAHRAMANMARAŞ SÜTÇÜ İMAM ÜNİVERSİTESİ, TIP FAKÜLTESİ
| | | | | | | |
Collapse
|
3
|
Zakeri N, kelishadi MR, Asbaghi O, Naeini F, Afsharfar M, Mirzadeh E, Naserizadeh SK. Selenium supplementation and oxidative stress: A review. PHARMANUTRITION 2021. [DOI: 10.1016/j.phanu.2021.100263] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
4
|
Turkyilmaz IB, Bayrak BB, Sacan O, Mutlu O, Akev N, Yanardag R. Zinc Supplementation Restores Altered Biochemical Parameters in Stomach Tissue of STZ Diabetic Rats. Biol Trace Elem Res 2021; 199:2259-2265. [PMID: 32820429 DOI: 10.1007/s12011-020-02352-z] [Citation(s) in RCA: 1] [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: 07/29/2020] [Accepted: 08/17/2020] [Indexed: 12/13/2022]
Abstract
The stomach is among the organs grossly affected organ by diabetic complications. The present study was aimed at investigating the protective role of zinc on stomach of streptozotocin (STZ)-induced diabetes mellitus. Female Swiss albino rats were divided in four experimental groups: Group I, control; group II, control + zinc sulfate; group III, STZ-induced diabetic animals; and group IV, STZ-diabetic + zinc sulfate. Diabetes was induced by intraperitoneal injection of STZ, at a dose of 65 mg/kg body weight. Zinc sulfate (100 mg/kg body weight) was given daily by gavage for 60 days to groups II and IV. At the end of the experiment, the rats were sacrificed, and the tissues were taken. In the diabetic group, hexose, hexosamine, fucose, and sialic acid levels, as well as tissue factor, adenosine deaminase, carbonic anhydrase, xanthine oxidase, lactate dehydrogenase, prolidase activities, advanced oxidized protein products, homocysteine, and TNF-α levels were increased in the stomach tissue homogenates. Whereas, catalase, superoxide dismutase, glutathione-S-transferase, glutathione peroxidase, glutathione reductase, paraoxonase, and aryl esterase activities were decreased in the diabetic group. The administration of zinc reversed all the deformities. These findings suggest that zinc has protective role in ameliorating several mechanisms of STZ-induced diabetic stomach injury.
Collapse
Affiliation(s)
- Ismet Burcu Turkyilmaz
- Department of Chemistry, Faculty of Engineering, Biochemistry Division, Istanbul University-Cerrahpasa, Avcilar, 34320, Istanbul, Turkey.
| | - Bertan Boran Bayrak
- Department of Chemistry, Faculty of Engineering, Biochemistry Division, Istanbul University-Cerrahpasa, Avcilar, 34320, Istanbul, Turkey
| | - Ozlem Sacan
- Department of Chemistry, Faculty of Engineering, Biochemistry Division, Istanbul University-Cerrahpasa, Avcilar, 34320, Istanbul, Turkey
| | - Ozgur Mutlu
- Department of Chemistry, Faculty of Engineering, Biochemistry Division, Istanbul University-Cerrahpasa, Avcilar, 34320, Istanbul, Turkey
| | - Nuriye Akev
- Department of Biochemistry, Faculty of Pharmacy, Istanbul University, 34116, Istanbul, Turkey
| | - Refiye Yanardag
- Department of Chemistry, Faculty of Engineering, Biochemistry Division, Istanbul University-Cerrahpasa, Avcilar, 34320, Istanbul, Turkey
| |
Collapse
|
5
|
He Y, Wu N. Research Progress on Gestational Diabetes Mellitus and Endothelial Dysfunction Markers. Diabetes Metab Syndr Obes 2021; 14:983-990. [PMID: 33688231 PMCID: PMC7937366 DOI: 10.2147/dmso.s295737] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 02/15/2021] [Indexed: 01/24/2023] Open
Abstract
Gestational diabetes mellitus (GDM) is the onset or first recognition of diabetes during pregnancy in women with normal glucose metabolism or potentially impaired glucose tolerance before pregnancy. Studies have shown that vascular endothelial cells (VECs) are an important target organ of insulin, which is injured by multiple factors in the case of GDM, thereby leading to worsened insulin resistance (IR) and the further development of GDM. When VECs are abnormal, there will be changes in the content of a variety of cell markers, which may be helpful for the clinical prediction and diagnosis of GDM. This study attempted to investigate the mechanism and markers of VECs injury in GDM patients.
Collapse
Affiliation(s)
- Yujing He
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, People’ s Republic of China
| | - Na Wu
- Department of Endocrinology, Shengjing Hospital of China Medical University, Shenyang, People’ s Republic of China
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, People’s Republic of China
| |
Collapse
|
6
|
Abstract
An increasing number of studies have focussed on the neurobiology of schizophrenia (SCH), contributing to a better understanding of this disorder. Prolidase is a metalloprotease found in various tissues, which has been associated with the concentrations of proline, a neurotransmitter, in the brain. There is evidence to suggest that elevated proline levels play a role in SCH. The aim of the present study was to compare plasma proline levels in patients with drug-naive first-episode psychosis (FEP) and in those with SCH. Patients diagnosed with FEP (n = 26) and SCH (n = 26) were recruited for this study, in addition to healthy control volunteers (n = 26). Plasma prolidase levels were found to be elevated in the SCH group compared to drug-naive FEP and healthy control groups. This finding indicates that prolidase levels are higher in SCH patients, while levels in patients with drug-naive FEP are similar to those of healthy control. Follow-up studies are needed to provide a better understanding of prolidase in the etiopathogenesis of SCH.
Collapse
|
7
|
Current Understanding of the Emerging Role of Prolidase in Cellular Metabolism. Int J Mol Sci 2020; 21:ijms21165906. [PMID: 32824561 PMCID: PMC7460564 DOI: 10.3390/ijms21165906] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 08/11/2020] [Accepted: 08/15/2020] [Indexed: 12/12/2022] Open
Abstract
Prolidase [EC 3.4.13.9], known as PEPD, cleaves di- and tripeptides containing carboxyl-terminal proline or hydroxyproline. For decades, prolidase has been thoroughly investigated, and several mechanisms regulating its activity are known, including the activation of the β1-integrin receptor, insulin-like growth factor 1 receptor (IGF-1) receptor, and transforming growth factor (TGF)-β1 receptor. This process may result in increased availability of proline in the mitochondrial proline cycle, thus making proline serve as a substrate for the resynthesis of collagen, an intracellular signaling molecule. However, as a ligand, PEPD can bind directly to the epidermal growth factor receptor (EGFR, epidermal growth factor receptor 2 (HER2)) and regulate cellular metabolism. Recent reports have indicated that PEPD protects p53 from uncontrolled p53 subcellular activation and its translocation between cellular compartments. PEPD also participates in the maturation of the interferon α/β receptor by regulating its expression. In addition to the biological effects, prolidase demonstrates clinical significance reflected in the disease known as prolidase deficiency. It is also known that prolidase activity is affected in collagen metabolism disorders, metabolic, and oncological conditions. In this article, we review the latest knowledge about prolidase and highlight its biological function, and thus provide an in-depth understanding of prolidase as a dipeptidase and protein regulating the function of key biomolecules in cellular metabolism.
Collapse
|
8
|
Eser B, Dogan I, Komut E, Koyuncu S, Aydemir N, Colak A, Akgun H, Kayadibi H. Relationship between renal tubulointerstitial fibrosis and serum prolidase enzyme activity. TURKISH JOURNAL OF BIOCHEMISTRY 2020. [DOI: 10.1515/tjb-2020-0026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
AbstractObjectivesThe severity of interstitial fibrosis/tubular atrophy (IFTA) is the most important determinant of the irreversible progression of chronic kidney disease (CKD). Prolidase is the key enzyme in collagen turnover and is associated with an extracellular matrix increase. We aimed to evaluate the relationship between the presence and degree of IFTA and serum prolidase enzyme activity (SPEA) in patients undergoing a renal biopsy.MethodsThis cross-sectional study included 56 patients who underwent a renal biopsy (30 males; mean age 45.3 ± 16.8 years) and also 54 healthy volunteers (21 males; mean age 42.7 ± 8.2 years). IFTA scoring was performed on the basis of percentage of IFTA presence in renal biopsy tissues (1=<10%; 2=10–24%; 3=25–50%; 4=>50%). SPEA was measured by spectrophotometric method.ResultsThe proteinuria and SPEA levels of the patients were significantly higher than the controls (p<0.001 and p<0.001, respectively). SPEA decreased significantly when the IFTA score increased (p<0.002). In the correlation analysis, the IFTA score was negatively correlated with SPEA (rs=−0.461, p<0.001), and positively correlated with proteinuria (rs=0.274, p=0.041).ConclusionThese findings suggest that increased collagen turnover decreases over time concerning the progression of renal fibrosis. Monitoring of SPEA level may useful as a biomarker for early determination of CKD progression and severity.
Collapse
Affiliation(s)
- Baris Eser
- Hitit University Faculty of Medicine, Department of Nephrology, Corum, Turkey
| | - Ibrahim Dogan
- Hitit University Faculty of Medicine, Department of Nephrology, Corum, Turkey
| | - Erdal Komut
- Hitit University Faculty of Medicine, Department of Radiology, Corum, Turkey
| | - Sumeyra Koyuncu
- Erciyes University Faculty of Medicine, Department of Nephrology, Kayseri, Turkey
| | - Nihal Aydemir
- Hitit University Faculty of Medicine, Department of Nephrology, Corum, Turkey
| | - Aysel Colak
- Ankara Bilkent City Hospital, Department of Pathology, Ankara, Turkey
| | - Hulya Akgun
- Erciyes University Faculty of Medicine, Department of Pathology, Kayseri, Turkey
| | - Huseyin Kayadibi
- Hitit University Faculty of Medicine, Department of Medical Biochemistry, Corum, Turkey
| |
Collapse
|
9
|
The Role of Oxidative Stress in Peripheral Neuropathy. J Mol Neurosci 2020; 70:1009-1017. [PMID: 32103400 DOI: 10.1007/s12031-020-01495-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 02/05/2020] [Indexed: 12/17/2022]
Abstract
Peripheral neuropathy (PN) is a common disease affecting about 5% of the general population after the age of 50. Causes of PN are numerous and include genetic, diabetes, alcohol, vitamin deficiencies, and gluten sensitivity among others. This systematic review aimed to study the association between oxidative stress and PN in an attempt to better understand PN pathogenesis. A computer-based, systematic search was conducted on the PubMed database, and ensuing data from included articles was analyzed and discussed in this review. Sixty-nine papers were eligible and were used for this review. Peripheral neuropathy is associated with an increase of reactive oxygen species and a decrease in endogenous antioxidants. Genetic predisposition to oxidative damage may be a factor. Antioxidant treatment is promising regarding treatment. Though further research is necessary to better understand the underlying mechanism, it is evident that oxidative stress is implicated in the pathogenesis of - or is at least systematically present in - PN.
Collapse
|
10
|
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.
Collapse
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
| |
Collapse
|
11
|
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.
Collapse
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
| |
Collapse
|
12
|
Ekin S, Arısoy A, Gunbatar H, Sertogullarindan B, Sunnetcioglu A, Sezen H, Asker S, Yıldız H. The relationships among the levels of oxidative and antioxidative parameters, FEV1 and prolidase activity in COPD. Redox Rep 2017; 22:74-77. [PMID: 26870880 PMCID: PMC6837489 DOI: 10.1080/13510002.2016.1139293] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
INTRODUCTION Chronic obstructive pulmonary disease (COPD) is a progressive condition characterized by poorly reversible airflow limitations associated with an abnormal inflammatory response of the lung. METHODS We investigated whether prolidase levels in serum, total antioxidant status, total oxidative status (TOS), and the oxidative stress index (OSI) were associated with the etiopathogenesis of COPD, and whether there is a relationship between prolidase activity and oxidative parameters and carotid artery intima-media thickness (CIMT) in patients with COPD. This study included 91 patients with COPD and 15 control cases. Routine haematological and biochemical parameters were determined in all patients. All subjects were fully informed about the study and provided consent. RESULTS The mean age of the patients with COPD was 61.3 ± 10.5 years and that of the control group was 56.2 ± 12.1 years. The control group had a significantly higher plasma prolidase level than that in the COPD group. TOS and OSI levels in the control group were significantly lower than those in the COPD group. However, no significant differences were found in TALs or CIMT levels between the COPD and control groups. A negative correlation was detected between prolidase activity and age; however, no significant difference in age was observed between the two groups. CONCLUSION These results indicate that prolidase activity decreases in patients with COPD.
Collapse
Affiliation(s)
- Selami Ekin
- Yuzuncu Yıl University, Pulmonary Medicine, 65080 Van, Turkey
| | - Ahmet Arısoy
- Yuzuncu Yıl University, Pulmonary Medicine, 65080 Van, Turkey
| | - Hulya Gunbatar
- Yuzuncu Yıl University, Pulmonary Medicine, 65080 Van, Turkey
| | | | | | - Hatice Sezen
- Department of Biochemistry, Harran University, Turkey
| | - Selvi Asker
- Yuzuncu Yıl University, Pulmonary Medicine, 65080 Van, Turkey
| | - Hanifi Yıldız
- Private Lokman Hekim Hospital, Pulmonary Medicine, Turkey
| |
Collapse
|
13
|
Tajti J, Szok D, Majláth Z, Csáti A, Petrovics-Balog A, Vécsei L. Alleviation of pain in painful diabetic neuropathy. Expert Opin Drug Metab Toxicol 2016; 12:753-64. [PMID: 27149100 DOI: 10.1080/17425255.2016.1184648] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Painful diabetic neuropathy (PDN) is a disabling pain condition. Its pathomechanism remains unknown, but a sensitization and neuronal hyperexcitabilty have been suggested. Only symptomatic pharmacological pain management treatment is currently available. AREAS COVERED The origin of PDN is enigmatic, and the evidence-based therapeutic guidelines therefore consist only of antidepressants and antiepileptics as first-line recommended drugs. This article relates to a MEDLINE/PubMed systematic search (2005-2015). EXPERT OPINION The results of the meta-analysis from the aspect of the efficacy of amitriptyline, duloxetine, venlafaxine, gabapentin and pregabalin are favorable, but the placebo response rate is relatively high in patients with neuropathic pain. For personalization of the medication of PDN patients, the optimum dosing, the genotyping of the metabolizing enzymes and optimum biomarkers are needed. As concerns the future perspectives, specific sodium channel subtype inhibitors acting on peripheral nociceptive neurons or modified T-type voltage-gated calcium channel blockers may be promising targets for pharmaceutical innovations. Another attractive strategy for the treatment is based on the effects of monoclonal antibodies against nerve growth factor, sodium channels, specific receptor and cytokines. Botulinum toxin A, capsaicin patch and spinal cord stimulation therapies are the nearest future therapeutic options for the treatment of PDN patients.
Collapse
Affiliation(s)
- János Tajti
- a Department of Neurology, Faculty of Medicine , University of Szeged , Szeged , Hungary
| | - Délia Szok
- a Department of Neurology, Faculty of Medicine , University of Szeged , Szeged , Hungary
| | - Zsófia Majláth
- a Department of Neurology, Faculty of Medicine , University of Szeged , Szeged , Hungary
| | - Anett Csáti
- a Department of Neurology, Faculty of Medicine , University of Szeged , Szeged , Hungary
| | - Anna Petrovics-Balog
- a Department of Neurology, Faculty of Medicine , University of Szeged , Szeged , Hungary
| | - László Vécsei
- a Department of Neurology, Faculty of Medicine , University of Szeged , Szeged , Hungary.,b MTA - SZTE Neuroscience Research Group , Szeged , Hungary
| |
Collapse
|
14
|
Li L, Liu B, Lu J, Jiang L, Zhang Y, Shen Y, Wang C, Jia W. Serum albumin is associated with peripheral nerve function in patients with type 2 diabetes. Endocrine 2015; 50:397-404. [PMID: 25860885 DOI: 10.1007/s12020-015-0588-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 03/27/2015] [Indexed: 12/16/2022]
Abstract
The aim of this study is to investigate the association between serum albumin concentrations and nerve conduction (NC) parameters in Chinese patients with type 2 diabetes (T2DM). A total of 409 T2DM patients were enrolled between October 2010 and April 2014. All participants underwent nerve conduction studies. The composite Z scores for NC parameters including conduction velocity (CV), amplitude, and latency were calculated as well. Serum albumin was measured by Bromcresol Green dye-binding method. The composite Z scores of CV and amplitude increased with the increasing albumin tertiles (test for trend, both P < 0.001), while the composite Z score of latency decreased with increasing albumin tertiles (test for trend, P < 0.001). After adjusting for age, sex, duration, and HbA1c, higher serum albumin concentrations were associated with higher composite Z scores of CV (β = 0.314, P < 0.001), amplitude (β = 0.279, P < 0.001), and lower composite Z score of latency (β = -0.279, P < 0.001). When participants were stratified into albuminuria and normoalbuminuria group, we found the associations of serum albumin with composite Z scores of NC parameters remained significant only in the albuminuria group (CV Z score: β = 0.253, P = 0.002; amplitude Z score: β = 0.233, P = 0.006; latency Z score: β = -0.217 P = 0.013) after further adjustment for urinary albumin to creatinine ratio. The optimal cutoff point of serum albumin to indicate abnormal peripheral nerve function was 36.75 g/L in T2DM patients with albuminuria, with a sensitivity of 65.6 % and a specificity of 78.0 %. Serum albumin was independently associated with peripheral nerve function in T2DM patients, especially in those with albuminuria. Serum albumin could be a potential biomarker for diabetic peripheral neuropathy.
Collapse
Affiliation(s)
- Lu Li
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Center for Diabetes, 600 Yishan Road, Shanghai, 200233, People's Republic of China
| | - Bo Liu
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital Jinshan Branch, Shanghai, People's Republic of China
| | - Jingyi Lu
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Center for Diabetes, 600 Yishan Road, Shanghai, 200233, People's Republic of China
| | - Lan Jiang
- Department of Electrophysiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, People's Republic of China
| | - Yinan Zhang
- Center for Translational Medicine, Shanghai Key Laboratory of Diabetes Mellitus, The Metabolic Diseases Biobank, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, People's Republic of China
| | - Yingdi Shen
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital Jinshan Branch, Shanghai, People's Republic of China
| | - Congrong Wang
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Center for Diabetes, 600 Yishan Road, Shanghai, 200233, People's Republic of China.
| | - Weiping Jia
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Center for Diabetes, 600 Yishan Road, Shanghai, 200233, People's Republic of China
| |
Collapse
|
15
|
Asemi Z, Jamilian M, Mesdaghinia E, Esmaillzadeh A. Effects of selenium supplementation on glucose homeostasis, inflammation, and oxidative stress in gestational diabetes: Randomized, double-blind, placebo-controlled trial. Nutrition 2015; 31:1235-42. [PMID: 26250486 DOI: 10.1016/j.nut.2015.04.014] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Revised: 03/08/2015] [Accepted: 04/21/2015] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To our knowledge, no reports are available indicating the effects of selenium supplementation on metabolic parameters, inflammatory factors, and oxidative stress in gestational diabetes mellitus (GDM). The aim of this study was to assess the effects of selenium supplementation on metabolic status in pregnant women with GDM who were not on oral hypoglycemic agents. METHODS This randomized, double-blind, placebo-controlled clinical trial was performed with 70 women with GDM. Patients were randomly assigned to receive either 200 μg selenium supplements as tablet (n = 35) or placebo (n = 35) for 6 wk from weeks 24 to 28 of gestation. Fasting plasma samples were taken at study baseline and after 6 wk of intervention to quantify related variables. RESULTS Selenium supplementation, compared with placebo, resulted in a significant reduction in fasting plasma glucose (-10.5 ± 11.9 versus +4.5 ± 12.9 mg/dL; P < 0.001), serum insulin levels (-1.98 ± 11.25 versus +5.26 ± 9.33 μIU/mL; P = 0.005), homeostasis model of assessment (HOMA)-insulin resistance (-0.84 ± 2.76 versus +1.47 ± 2.46; P < 0.001) and a significant increase in quantitative insulin sensitivity check index (+0.008 ± 0.03 versus -0.01 ± 0.01; P = 0.009). Additionally, a significant decrease in serum high-sensitivity C-reactive protein (hs-CRP) levels (-791.8 ± 2271.8 versus +500.5 ± 2563.3 ng/mL; P = 0.02) was seen after the administration of selenium supplements compared with placebo. Additionally, we observed a significant elevation in plasma glutathione (+52.14 ± 58.31 versus -39.93 ± 153.52 μmol/L; P = 0.002) and a significant reduction in plasma malondialdehyde levels (-0.01 ± 0.36 versus +0.67 ± 1.90 μmol/L; P = 0.04) after consumption of selenium supplements compared with placebo. We did not find any significant effect of taking selenium supplements on HOMA β-cell function, lipid profiles, plasma nitric oxide, or total antioxidant capacity concentrations. CONCLUSION Selenium supplementation in pregnant women with GDM demonstrated beneficial effects on glucose metabolism, hs-CRP levels, and biomarkers of oxidative stress.
Collapse
Affiliation(s)
- Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, I.R. Iran
| | - Mehri Jamilian
- Department of Gynecology and Obstetrics, School of Medicine, Arak University of Medical Sciences, Arak, Iran
| | - Elaheh Mesdaghinia
- Department of Gynecology and Obstetrics, School of Medicine, Kashan University of Medical Sciences, Kashan, I.R. Iran
| | - Ahmad Esmaillzadeh
- Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran; Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran.
| |
Collapse
|
16
|
Ziegler D, Buchholz S, Sohr C, Nourooz-Zadeh J, Roden M. Oxidative stress predicts progression of peripheral and cardiac autonomic nerve dysfunction over 6 years in diabetic patients. Acta Diabetol 2015; 52:65-72. [PMID: 24898524 DOI: 10.1007/s00592-014-0601-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Accepted: 05/17/2014] [Indexed: 12/11/2022]
Abstract
Oxidative stress is implicated in the pathogenesis of experimental diabetic neuropathy, but prospective studies in diabetic patients are lacking. We aimed to evaluate whether the plasma levels of various biomarkers of oxidative stress predict the progression of diabetic neuropathy and mortality over 6 years. We followed 89 diabetic patients aged 54 ± 14 years (59 % with polyneuropathy), 72 of whom underwent nerve function reassessment after 6.2 ± 0.8 years, whereas 17 died after 4.2 ± 1.0 years. Plasma markers of oxidative stress at baseline included superoxide anion, hypochlorous acid, peroxynitrite, 8-iso-prostaglandin F2α, vitamin E/lipid ratio, and vitamin C. Neuropathy was assessed by symptoms and deficits, motor and sensory nerve conduction velocity (MNCV, SNCV), vibration perception thresholds (VPT), thermal detection thresholds, and heart rate variability (HRV). Despite a reduction in HbA1c by 1.4 ± 1.6 % (p < 0.001), median SNCV, sural SNCV, peroneal MNCV, malleolar VPT, and warm TDT deteriorated after 6 years (all p < 0.05). In multivariate models, increased superoxide generation was associated with a decline in median SNCV (β = -0.997; p = 0.036) and deterioration in HRV at rest (OR 1.63 [95 % CI 1.09-2.44]; p = 0.017) over 6 years. Low vitamin E/lipid ratio tended to predict a decrease in peroneal MNCV (β = 0.781; p = 0.057) and an increase in malleolar VPT (β = -0.725; p = 0.077). Plasma superoxide generation was associated with an increased risk of mortality (HR 23.2 [95 % CI 1.05-513]; p = 0.047). In conclusion, increased plasma superoxide generation predicted the decline in sensory and cardiac autonomic nerve function and mortality over 6 years in diabetic patients, but larger studies are required for confirmation.
Collapse
Affiliation(s)
- Dan Ziegler
- Institute for Clinical Diabetology, Leibniz Center for Diabetes Research, German Diabetes Center at Heinrich Heine University, Auf'm Hennekamp 65, 40225, Düsseldorf, Germany,
| | | | | | | | | |
Collapse
|
17
|
Papanas N, Ziegler D. New vistas in the diagnosis of diabetic polyneuropathy. Endocrine 2014; 47:690-8. [PMID: 24839196 DOI: 10.1007/s12020-014-0285-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Accepted: 05/02/2014] [Indexed: 01/01/2023]
Abstract
New modalities are now available to improve the diagnosis of diabetic polyneuropathy (DPN). The present review discusses the progress achieved in this area. First, the minimal diagnostic criteria have been better clarified. Moreover, there are now new bedside tests available, such as the indicator test Neuropad, NeuroQuick, Ipswich Touch Test (IpTT), Vibratip, NC-stat(®)/DPNCheck™ for automated nerve conduction study (NCS), tactile circumferential discriminator, steel ball-bearing, and SUDOSCAN(®), while more sophisticated modalities include skin biopsy and corneal confocal microscopy (CCM). Some tests can be used as screening tools, including primary care setting (Neuropad, IpTT, Vibratip, automated NCS), while others are more suitable for research, including evaluation of DPN in prospective studies (CCM, skin biopsy). Importantly, there is some evidence of earlier DPN diagnosis with the aid of some tests (Neuropad, skin biopsy, CCM). Further advantages provided by different tests are educational value and self-examination. Thus far, the potential of these tests has not been fully utilised. In particular, they have not been validated against standardised clinical examination scores in terms of predicting foot ulcers and amputations. Hence, it now remains to investigate the potential benefits from the widespread use of these tests for earlier and easier diagnosis of DPN in the everyday clinic.
Collapse
Affiliation(s)
- Nikolaos Papanas
- Institute for Clinical Diabetology, German Diabetes Center at Heinrich Heine University, Leibniz Center for Diabetes Research, Auf'm Hennekamp 65, 40225, Düsseldorf, Germany
| | | |
Collapse
|
18
|
Okada K, Kotani K, Yagyu H, Ando A, Osuga JI, Ishibashi S. Effects of treatment with liraglutide on oxidative stress and cardiac natriuretic peptide levels in patients with type 2 diabetes mellitus. Endocrine 2014; 47:962-4. [PMID: 24696097 PMCID: PMC4239782 DOI: 10.1007/s12020-014-0246-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 03/15/2014] [Indexed: 01/15/2023]
Affiliation(s)
- Kenta Okada
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan,
| | | | | | | | | | | |
Collapse
|