1
|
Karahan D, Harputluoglu MMM, Gul M, Gunduz A, Ozyalin F, İnceoğlu F, Tikici D, Yılmaz İ, Satilmis B. Ameliorative Effects of Larazotide Acetate on Intestinal Permeability and Bacterial Translocation in Acute Pancreatitis Model in Rats. Dig Dis Sci 2024; 69:1242-1252. [PMID: 38441784 DOI: 10.1007/s10620-024-08326-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 01/29/2024] [Indexed: 04/19/2024]
Abstract
BACKGROUND Intestinal barrier dysfunction in acute pancreatitis (AP) may progress to systemic inflammatory response syndrome (SIRS) and multi-organ failures by causing bacterial translocation. Larazotide acetate (LA) is a molecule that acts as a tight junction (TJ) regulator by blocking zonulin (Zo) receptors in the intestine. AIMS In our study, we aimed to investigate the effects of LA on intestinal barrier dysfunction and bacterial translocation in the AP model in rats. METHODS Thirty-two male Sprague-Dawley rats were divided into 4 groups; control, larazotide (LAR), AP, and AP + LAR. The AP model was created by administering 250 mg/100 g bm L-Arginine intraperitoneally 2 times with an hour interval. AP + LAR group received prophylactic 0.01 mg/mL LA orally for 7 days before the first dose of L-Arginine. For intestinal permeability analysis, fluorescein isothiocyanate-dextran (FITC-Dextran) was applied to rats by gavage. The positivity of any of the liver, small intestine mesentery, and spleen cultures were defined as bacterial translocation. Histopathologically damage and zonulin immunoreactivity in the intestine were investigated. RESULTS Compared to the control group, the intestinal damage scores, anti-Zo-1 immunoreactivity H-Score, serum FITC-Dextran levels and bacterial translocation frequency (100% versus 0%) in the AP group were significantly higher (all p < 0.01). Intestinal damage scores, anti-Zo-1 immunoreactivity H-score, serum FITC-Dextran levels, and bacterial translocation frequency (50% versus 100%) were significantly lower in the AP + LAR group compared to the AP group (all p < 0.01). CONCLUSIONS Our findings show that LA reduces the increased intestinal permeability and intestinal damage by its effect on Zo in the AP model in rats, and decreases the frequency of bacterial translocation as a result of these positive effects.
Collapse
Affiliation(s)
- Doğu Karahan
- Department of Internal Medicine, Malatya Turgut Özal University Faculty of Medicine, Malatya, Turkey.
| | | | - Mehmet Gul
- Department of Histology and Embryology, İnönü University Faculty of Medicine, Malatya, Turkey
| | - Ayten Gunduz
- Department of Medical Microbiology, Malatya Turgut Özal University Faculty of Medicine, Malatya, Turkey
| | - Fatma Ozyalin
- Department of Medical Biochemistry, Malatya Turgut Özal University Faculty of Medicine, Malatya, Turkey
| | - Feyza İnceoğlu
- Department of Biostatistics, Malatya Turgut Özal University Faculty of Medicine, Malatya, Turkey
| | - Deniz Tikici
- Department of General Surgery, Muğla Training and Research Hospital, Muğla, Turkey
| | - İsmet Yılmaz
- Department of Pharmacology, İnönü University Faculty of Pharmacy, Malatya, Turkey
| | - Basri Satilmis
- Department of Basic Pharmaceutical Sciences, İnönü University Faculty of Pharmacy, Malatya, Turkey
| |
Collapse
|
2
|
Bahar MR, Tekin S, Beytur A, Onalan EE, Ozyalin F, Colak C, Sandal S. Effects of intracerebroventricular MOTS-c infusion on thyroid hormones and uncoupling proteins. Biol Futur 2023:10.1007/s42977-023-00163-6. [PMID: 37067760 DOI: 10.1007/s42977-023-00163-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 04/06/2023] [Indexed: 04/18/2023]
Abstract
This study was conducted to determine the possible effects of intracerebroventricular MOTS-c infusion on thyroid hormones and uncoupling proteins (UCPs) in rats. Forty male Wistar Albino rats were divided into 4 groups with 10 animals in each group: control, sham, 10 and 100 µM MOTS-c. Hypothalamus, blood, muscle, adipose tissues samples were collected for thyrotropin-releasing hormone (TRH), UCP1 and UCP3 levels were determined by the RT-PCR and western blot analysis. Serum thyroid hormone levels were determined by the ELISA assays. MOTS-c infusion was found to increase food consumption but it did not cause any changes in the body weight. MOTS-c decreased serum TSH, T3, and T4 hormone levels. On the other hand, it was also found that MOTS-c administration increased UCP1 and UCP3 levels in peripheral tissues. The findings obtained in the study show that central MOTS-c infusion is a directly effective agent in energy metabolism.
Collapse
Affiliation(s)
- Mehmet Refik Bahar
- Department of Physiology, Faculty of Medicine, Inonu University, Malatya, Turkey
| | - Suat Tekin
- Department of Physiology, Faculty of Medicine, Inonu University, Malatya, Turkey.
| | - Asiye Beytur
- Department of Physiology, Faculty of Medicine, Inonu University, Malatya, Turkey
| | - Ebru Etem Onalan
- Department of Medical Biology, Faculty of Medicine, Firat University, Elazig, Turkey
| | - Fatma Ozyalin
- Laboratory and Veterinary Health Program, Akcadag Vocational School, Malatya Turgut Ozal University, Malatya, Turkey
| | - Cemil Colak
- Department of Biostatistics and Medical Informatics, Faculty of Medicine, Inonu University, Malatya, Turkey
| | - Süleyman Sandal
- Department of Physiology, Faculty of Medicine, Inonu University, Malatya, Turkey
| |
Collapse
|
3
|
Pepele M, Yucel N, Oztanir M, Soylu N, Takmaz A, Ozyalin F. The effects of different fluid resuscitations in the acute phase of combined traumatic brain injury and hemorrhagic shock in an experimental rat model. Med-Science 2021. [DOI: 10.5455/medscience.2020.12.261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
|
4
|
Demir M, Yilmaz U, Colak C, Cigremis Y, Ozyalin F, Tekedereli I, Sandal S. Is there a new pathway relationship between melatonin and FEZ1 in experimental rat model of Alzheimer’s disease? BRATISL MED J 2019; 120:70-77. [DOI: 10.4149/bll_2019_011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
5
|
Turhan U, Yilmaz E, Gul M, Melekoglu R, Turkoz Y, Ozyalin F, Parlakpinar H, Simsek Y. Investigation of the effect of gestational diabetes on fetal cardiac tissue in streptozotocin ınduced in rats. Acta Cir Bras 2018; 33:306-313. [PMID: 29768533 DOI: 10.1590/s0102-865020180040000002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 03/13/2018] [Indexed: 11/22/2022] Open
Abstract
PURPOSE To investigate the cause of congenital anomalies resulted from gestational diabetes on fetal cardiac tissue in experimental animal study model. METHODS Totally 12 female Wistar albino rats were divided into two groups, each consisting of 6 rats. Streptozotocin (60 mg/kg) was administered intraperitoneally to the study group by dissolving in citrate solution. The rats with a blood glucose level of 200 mg/dL and above were considered to be diabetic rats. Total antioxidant status (TAS), total oxidative stress (TOS) and oxidative stress index (OSI) values were calculated in the cardiac tissues and maternal serum samples of the fetuses delivered by cesarean section after the mating process. The cardiac tissues were also subjected to histopathological examination. RESULTS TOS and OSI values in fetal cardiac tissues of the diabetic rats were found to be significantly higher than that of the control group (p=0.026 and p=0.005). Histopathological examination revealed that the mitotic index was lower and the cell organization was found to be damaged in the fetuses of the study group rats. CONCLUSION Increased levels of free oxygen radicals considered to be due to hyperglycemia may cause congenital anomalies, especially during organogenesis period, by disrupting cell homeostasis and adversely affecting mitosis.
Collapse
Affiliation(s)
- Ugur Turhan
- MD, Department of Obstetrics and Gynecology, Faculty of Medicine, Health Science University, Kanuni Sultan Suleyman Education and Research Hospital, Istanbul, Turkey. Conception and design of the study
| | - Ercan Yilmaz
- Associate Professor, Department of Obstetrics and Gynecology, Faculty of Medicine, Inonu University, Malatya, Turkey. Manuscript writing
| | - Mehmet Gul
- Full Professor, Department of Histology and Embriyology, Faculty of Medicine, Inonu University, Malatya, Turkey. Histopathological examinations
| | - Rauf Melekoglu
- Assistant Professor, Department of Obstetrics and Gynecology, Faculty of Medicine, Inonu University, Malatya, Turkey. Acquisition of data
| | - Yusuf Turkoz
- Full Professor, Department of Biochemistry, Faculty of Medicine, Inonu University, Malatya, Turkey. Technical procedures
| | - Fatma Ozyalin
- MD, Department of Biochemistry, Faculty of Medicine, Inonu University, Malatya, Turkey. Statistical analysis
| | - Hakan Parlakpinar
- Full Professor, Department of Pharmacology, Faculty of Medicine, Inonu University, Malatya, Turkey. Critical revision
| | - Yavuz Simsek
- Associate Professor, Private Clinic, Kırıkkale, Turkey. Manuscript preparation
| |
Collapse
|
6
|
Tekin S, Erden Y, Ozyalin F, Onalan EE, Cigremis Y, Colak C, Tekedereli I, Sandal S. Central irisin administration suppresses thyroid hormone production but increases energy consumption in rats. Neurosci Lett 2018; 674:136-141. [DOI: 10.1016/j.neulet.2018.03.046] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 03/13/2018] [Accepted: 03/20/2018] [Indexed: 12/12/2022]
|
7
|
Elbe H, Gul M, Cetin A, Taslidere E, Ozyalin F, Turkoz Y, Otlu A. Resveratrol reduces light and electron microscopic changes in acetaminophen-induced hepatotoxicity in rats: Role of iNOS expression. Ultrastruct Pathol 2017; 42:39-48. [PMID: 29192844 DOI: 10.1080/01913123.2017.1374313] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
INTRODUCTION Hepatotoxicity is a major complication of acetaminophen (APAP), a widely used analgesic and antipyretic drug. Resveratrol (RSV) is a naturally occurring diphenol and it has anticancer, antioxidant, and anti-inflammatory properties. OBJECTIVES In this study, the beneficial effects of RSV on APAP-induced hepatotoxicity was investigated in rats. MATERIALS AND METHODS Group 1: Ethanol, Group 2: Saline, Group 3: RSV (10 mg/kg/ip), Group 4: APAP (1000 mg/kg/ip/single dose), Group 5: APAP+RSV (20 min after administration of APAP). The rats were sacrificed 24 h after administration of APAP. Light and electron microscopic changes were evaluated. Levels of malondialdehyde (MDA) and glutathione (GSH), catalase (CAT), and superoxide dismutase (SOD) activities were determined in liver tissue. RESULTS Rats of the ethanol, saline, and RSV groups did not present any histopathological alterations. In the APAP group, we observed vascular congestion, necrosis, inflammation, sinusoidal dilatation, and loss of glycogen content. In the APAP+RSV group, these changes were markedly reduced. iNOS immunostaining showed very weak positive stained hepatocytes the sections of control, saline, and RSV groups. However, in the APAP group, iNOS immunostaining was most evident in pericentral hepatocytes. In the same areas in APAP+RSV group, intensity of iNOS immunostaining decreased. A significant increase in MDA and decreases in GSH level, CAT, and SOD activity indicated that APAP-induced hepatotoxicity was mediated through oxidative stress. Significant beneficial changes were noted in tissue oxidative stress indicators in rats treated with RSV. CONCLUSION These biochemical, histopathological, and ultrastructural findings revealed that RSV reduced the severity of APAP-induced alterations in liver.
Collapse
Affiliation(s)
- Hulya Elbe
- a Faculty of Medicine, Department of Histology and Embryology , Mugla Sıtkı Kocman University , Mugla , Turkey
| | - Mehmet Gul
- b Faculty of Medicine, Department of Histology and Embryology , Inonu University , Malatya , Turkey
| | - Asli Cetin
- b Faculty of Medicine, Department of Histology and Embryology , Inonu University , Malatya , Turkey
| | - Elif Taslidere
- c Faculty of Medicine, Department of Histology and Embryology , Bezmialem Vakif University , Istanbul , Turkey
| | - Fatma Ozyalin
- d Faculty of Medicine, Department of Medical Biochemistry , Inonu University , Malatya , Turkey
| | - Yusuf Turkoz
- d Faculty of Medicine, Department of Medical Biochemistry , Inonu University , Malatya , Turkey
| | - Ali Otlu
- b Faculty of Medicine, Department of Histology and Embryology , Inonu University , Malatya , Turkey
| |
Collapse
|
8
|
Erden Y, Tekin S, Tekin C, Ozyalin F, Yilmaz U, Onalan EE, Cigremis Y, Colak C, Sandal S. Effect of Intracerebroventricular Administration of Apelin-13 on the Hypothalamus–Pituitary–Thyroid Axis and Peripheral Uncoupling Proteins. Int J Pept Res Ther 2017. [DOI: 10.1007/s10989-017-9638-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
9
|
Harputluoglu MMM, Temel I, Demirel U, Seckin Y, Aladag M, Otlu B, Karadag N, Ozyalin F, Aydogan N, Selcuk EB. Methylprednisolone prevents bacterial translocation in thioacetamide-induced liver failure in rats. Turk J Gastroenterol 2017; 28:394-400. [DOI: 10.5152/tjg.2017.1775] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
|
10
|
Taskapan H, Taskapan C, Ozyalin F, Dogan A. SP709SERUM NT-PROBNP, ACYLGHRELIN, DESACYLGHRELIN, OBESTATIN, AND FATTY ACID BINDING PROTEIN 4 LEVELS IN HEMODIALYSIS PATIENT. Nephrol Dial Transplant 2017. [DOI: 10.1093/ndt/gfx155.sp709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
11
|
Cakir M, Duzova H, Taslidere A, Orhan G, Ozyalin F. Protective effects of salusin-α and salusin-β on renal ischemia/reperfusion damage and their levels in ischemic acute renal failure. Biotech Histochem 2017; 92:122-133. [DOI: 10.1080/10520295.2017.1283056] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Affiliation(s)
| | | | | | | | - F Ozyalin
- Biochemistry, Inonu University Faculty of Medicine, Malatya, Turkey
| |
Collapse
|
12
|
Tekin S, Erden Y, Sandal S, Etem Onalan E, Ozyalin F, Ozen H, Yilmaz B. Effects of apelin on reproductive functions: relationship with feeding behavior and energy metabolism. Arch Physiol Biochem 2017; 123:9-15. [PMID: 27494693 DOI: 10.1080/13813455.2016.1211709] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Apelin is an adipose tissue derived peptidergic hormone. In this study, 40 male Sprague-Dawley rats were used (four groups; n = 10). Apelin-13 at three different dosages (1, 5 and 50 μg/kg) was given intraperitoneally while the control group received vehicle the same route for a period of 14 days. In results, apelin-13 caused significant decreases in serum testosterone, luteinizing hormone and follicle-stimulating hormone levels (p < 0.05). Administration of apelin-13 significantly increased body weights, food intake, serum low-density lipoprotein and total cholesterol levels (p < 0.05), but caused significant decreases in high-density lipoprotein levels (p < 0.05). Serum glucose and triglyceride levels were not significantly altered by apelin-13 administration. Significant decreases in both uncoupling protein (UCP)-1 levels in the white and brown adipose tissues and UCP-3 levels in the biceps muscle (p < 0.05) were noted. The findings of the study suggest that apelin-13 may not only lead to obesity by increasing body weight but also cause infertility by suppressing reproductive hormones.
Collapse
MESH Headings
- Adipose Tissue, Brown/drug effects
- Adipose Tissue, Brown/metabolism
- Adipose Tissue, White/drug effects
- Adipose Tissue, White/metabolism
- Animals
- Dose-Response Relationship, Drug
- Energy Intake/drug effects
- Energy Metabolism/drug effects
- Feeding Behavior/drug effects
- Gonadotropins, Pituitary/antagonists & inhibitors
- Gonadotropins, Pituitary/blood
- Hypercholesterolemia/blood
- Hypercholesterolemia/chemically induced
- Hypercholesterolemia/metabolism
- Infertility, Male/blood
- Infertility, Male/chemically induced
- Infertility, Male/metabolism
- Injections, Intraperitoneal
- Intercellular Signaling Peptides and Proteins/toxicity
- Male
- Muscle, Skeletal/drug effects
- Muscle, Skeletal/metabolism
- Overweight/blood
- Overweight/chemically induced
- Overweight/metabolism
- Random Allocation
- Rats, Sprague-Dawley
- Testosterone/antagonists & inhibitors
- Testosterone/blood
- Toxicity Tests, Chronic
- Uncoupling Protein 1/antagonists & inhibitors
- Uncoupling Protein 1/genetics
- Uncoupling Protein 1/metabolism
- Uncoupling Protein 3/antagonists & inhibitors
- Uncoupling Protein 3/genetics
- Uncoupling Protein 3/metabolism
- Weight Gain/drug effects
Collapse
Affiliation(s)
- Suat Tekin
- a Department of Physiology , Faculty of Medicine, Inonu University , Malatya , Turkey
| | - Yavuz Erden
- b Department of Molecular Biology and Genetics , Faculty of Science, Bartin University , Bartin , Turkey
| | - Suleyman Sandal
- a Department of Physiology , Faculty of Medicine, Inonu University , Malatya , Turkey
| | - Ebru Etem Onalan
- c Department of Medical Biology , Faculty of Medicine, Firat University , Elazig , Turkey
| | - Fatma Ozyalin
- d Department of Biochemistry , Faculty of Medicine, Inonu University , Malatya , Turkey
| | - Hasan Ozen
- e Department of Pathology , Faculty of Veterinary Medicine, Kafkas University , Kars , Turkey
| | - Bayram Yilmaz
- f Department of Physiology , Faculty of Medicine, Yeditepe University , Istanbul , Turkey
| |
Collapse
|
13
|
Yagmur J, Cansel M, Kurtoglu E, Hidayet S, Acıkgoz N, Ermis N, Ozyalin F. Assessment of left atrial volume and function by real time three-dimensional echocardiography in obese patients. Echocardiography 2016; 34:210-216. [PMID: 27933639 DOI: 10.1111/echo.13417] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Revised: 10/31/2016] [Accepted: 11/06/2016] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE To evaluate left atrial (LA) volume and functions in obese subjects using real time three-dimensional echocardiography (RT3DE) and also the relationship between LA mechanical functions and N-terminal pro-atrial natriuretic peptide (NT-proANP). METHODS This study included 40 obese (26 females and 14 males, mean age 51.9 years) and 40 normal weight subjects (23 females and 16 males, mean age 53.5 years) with normal coronary angiograms. All the study participants underwent RT3DE to assess LA volume and mechanical function. Plasma NT-proANP was determined by ELISA method. RESULTS There was no significant difference between groups in left ventricular (LV) diameters and ejection fraction, which reflect LV systolic function. However, transmitral deceleration time, isovolumetric relaxation time, and peak late diastolic tissue Doppler velocity values, which reflect LV diastolic function, were found to be significantly higher in obese subjects when compared with controls. LA maximum volume (LAVmax), LAVmax index (LAVI), LA minimal volume (LAVmin), before atrial contraction volume (LAVpreA), LA active emptying volume, LA total emptying volume, and LA active emptying fraction, which reflect LA reservoir and pump functions, were also higher in obese subjects when compared with controls. LA passive emptying fraction was significantly lower in obese subjects than in controls. NT-proANP levels were similar between groups. There were positive correlations between NT-proANP level and LAVI, LAVmax, LAVmin, LAVpreA, and LA total and active emptying volumes. CONCLUSIONS Left atrial mechanical functions and volumes are impaired in obese subjects. These findings may be regarded as early markers of subclinical cardiac failure in obese subjects who have not yet exhibited any clinical evidence of cardiovascular disease.
Collapse
Affiliation(s)
- Julide Yagmur
- Clinic of Cardiology, Inonu University Faculty of Medicine, Malatya, Turkey
| | - Mehmet Cansel
- Clinic of Cardiology, Inonu University Faculty of Medicine, Malatya, Turkey
| | | | - Siho Hidayet
- Clinic of Cardiology, Malatya State Hospital, Malatya, Turkey
| | - Nusret Acıkgoz
- Clinic of Cardiology, Inonu University Faculty of Medicine, Malatya, Turkey
| | - Necip Ermis
- Clinic of Cardiology, Inonu University Faculty of Medicine, Malatya, Turkey
| | - Fatma Ozyalin
- Clinic of Medical Biochemistry, Inonu University Faculty of Medicine, Malatya, Turkey
| |
Collapse
|
14
|
Taslidere E, Gul M, Elbe H, Cetin A, Vardi N, Ozyalin F, Turkoz Y. The effects of caffeic acid phenethyl ester on streptozotocin-induced diabetic liver injury. ACTA ACUST UNITED AC 2016; 117:276-82. [DOI: 10.4149/bll_2016_054] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
15
|
Taşolar H, Eyyüpkoca F, Aktürk E, Karakuş Y, Cansel M, Yağmur J, Ozyalin F, Altun B, Pekdemir H. Endothelial nitric oxide synthase levels and their response to exercise in patients with slow coronary flow. Cardiovasc J Afr 2014; 24:355-9. [PMID: 24337211 PMCID: PMC3896107 DOI: 10.5830/cvja-2013-072] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Accepted: 09/18/2013] [Indexed: 11/06/2022] Open
Abstract
Background Endothelial dysfunction plays a key role in the aetiopathogenesis of slow coronary flow (SCF) even if there is no obstructive epicardial lesion. Reduced plasma levels of endothelial nitric oxide synthase (eNOS) are an important indicator of endothelial dysfunction. We aimed to determine plasma levels of eNOS and their relationship with exercise in patients with SCF. Methods Twenty-two patients with SCF in at least one coronary artery and 17 healthy individuals were included in this study. The TIMI frame count method was used to determine SCF. Plasma levels of eNOS before and after effort were determined in the patient and control groups. Results Basal eNOS levels in the patient group were lower than in the control group (p = 0.040), and plasma eNOS levels after exercise decreased more significantly in the patient group compared to the control group (p = 0.002). Median decreases of eNOS in response to exercise were higher in the SCF group than in the control group (p < 0.001), and the decrease observed in the control group was not statistically significant (p = 0.35). There were significantly negative correlations between TIMI frame count and plasma levels of eNOS at baseline and after exercise (r = –0.51, p = 0.015, r = –0.58, p = 0.005, respectively). Moreover, there was also a positive correlation between the rate–pressure product and plasma levels of eNOS after exercise in patients with SCF (r = 0.494, p = 0.019). Conclusion Our findings indicate an important pathophysiological relationship between the severity of SCF in which endothelial dysfunction plays a role in its pathogenesis and the level of circulating plasma levels of eNOS.
Collapse
Affiliation(s)
- Hakan Taşolar
- Department of Cardiology, Adiyaman University, Training and Research Hospital, Adiyaman, Turkey
| | | | | | | | | | | | | | | | | |
Collapse
|
16
|
Tabel Y, Elmas A, Ipek S, Karadag A, Elmas O, Ozyalin F. Urinary neutrophil gelatinase-associated lipocalin as an early biomarker for prediction of acute kidney injury in preterm infants. Am J Perinatol 2014; 31:167-74. [PMID: 23592318 DOI: 10.1055/s-0033-1343770] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
BACKGROUND Our aims are to determine whether the urinary neutrophil gelatinase-associated lipocalin (uNGAL) can predict acute kidney injury (AKI) development in nonseptic and nonasphyxiated but critically ill preterm infants. METHODS Fifty preterm infants, gestational age (GA) between 28 and 34 weeks, were included in this case control study. Blood and urine samples were taken for blood urea nitrogen, serum creatinine, and uNGAL on postnatal (PN) days 1 and 7. uNGAL levels were measured by enzyme-linked immunoassay. Clinical and laboratory characteristics of the AKI group were compared with the non-AKI group. RESULTS AKI was diagnosed in six infants during the first week. The median uNGAL levels were significantly higher in the preterm infants with AKI than those of the controls on PN days 1 and 7 (p = 0.006 and p = 0.023, respectively). Backward stepwise logistic regression analysis identified that 5-minute Apgar score and uNGAL levels were significantly associated with the development of AKI, even after controlling for GA, birth weight, gender, and 1-minute Apgar score in nonseptic and nonasphyxiated but critically ill preterm infants. CONCLUSIONS uNGAL can be useful as a predictive marker of AKI in nonseptic and nonasphyxiated but critically ill preterm infants.
Collapse
Affiliation(s)
- Yilmaz Tabel
- Department of Pediatric Nephrology, Inonu University, Malatya, Turkey
| | - Ahmet Elmas
- Department of Pediatric Nephrology, Inonu University, Malatya, Turkey
| | - Sevcan Ipek
- Department of Pediatrics, Inonu University, Malatya, Turkey
| | - Ahmet Karadag
- Department of Neonatology, Inonu University, Malatya, Turkey
| | - Ozlem Elmas
- Department of Pediatrics, State Hospital, Malatya, Turkey
| | - Fatma Ozyalin
- Department of Biochemistry, Inonu University, Malatya, Turkey
| |
Collapse
|
17
|
Celik E, Karaer A, Turkcuoglu I, Turhan U, Gungoren A, Taskapan C, Ozyalin F, Berker B. Association of folic acid receptor α in maternal serum with neural tube defects. J Matern Fetal Neonatal Med 2013; 27:1083-7. [PMID: 24094304 DOI: 10.3109/14767058.2013.849239] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE To evaluate whether serum folic receptor α levels are changed in women whose previous pregnancies were complicated with neural tube defects (NTDs). METHODS This was a case-control study that included 41 women as the control group who had previously had at least one healthy pregnancy and 37 women as the study group who had a previous pregnancy complicated with NTDs. Blood samples were obtained from all of the participants six weeks after the termination of pregnancy or delivery of a baby. Serum folate receptor α concentrations were analyzed using a commercially available enzyme-linked immunosorbent assay (ELISA) kit. RESULTS The mean concentrations of serum folate receptor α were significantly lower in the NTD cases compared to those in the control group (p = 0.02). There was no significant difference in mean serum folate titers between the NTD cases and the control group (p = 0.07). CONCLUSION Low serum folic acid receptor α levels in the current study did not appear to be a regulatory marker of maternal folate homeostasis per se but rather a factor that contributed to the development of NTDs.
Collapse
Affiliation(s)
- Ebru Celik
- Department of Obstetrics and Gynecology, Turgut Ozal Medical Center, Inonu University , Malatya , Turkey
| | | | | | | | | | | | | | | |
Collapse
|
18
|
Taskapan H, Taskapan MC, Orman I, Ulutas O, Yigit A, Ozyalin F, Yologlu S. NGAL and NT-proBNP levels in diabetic patients with macroproteinuria. Ren Fail 2013; 35:1273-7. [PMID: 23964619 DOI: 10.3109/0886022x.2013.824336] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND In patients with heart failure plasma N-terminal pro-brain natriuretic peptide (NT-proBNP) levels are correlated to urine neutrophil gelatinase-associated lipocalin (NGAL) levels. We prospectively evaluated the relationship among glomerular filtration rate (eGFR), urine albumin-to-creatinine ratio (ACR), urine and serum NGAL and NT-proBNP levels in 20 type II diabetic patients with macroalbuminuria at 4-month intervals. RESULTS Compared with 20 age, gender-matched healthy controls, diabetic patients had higher urine and serum NGAL, serum NT-proBNP and lower eGFR. The eGFR of the patients at the baseline, the 4th and the 8th month were 29.6 ± 12.0, 27.8 ± 13.7 and 22.9 ± 10.4 mL/min/1.73 m(2), respectively. No significant change in urine NGAL levels was detected (p > 0.05), whereas there were significant increases in NT-proBNP, serum NGAL and urine ACR and significant decrease in eGFR as the study progressed (p < 0.05). Both the baseline and the 4th month urine ACR were positively correlated to NT-proBNP levels measured at the same periods (r: 0.451; p: 0.046; r: 0.489; p: 0.029 respectively). In all measurements, urine ACR was negatively correlated to serum albumin levels measured at the same periods (r: -0.792; p: 0.000; r: -0.716; p: 0.000; r: -0.531; p: 0.016 respectively). None of eGFR measurements was correlated with NT-proBNP (p > 0.05). Neither serum NGAL nor urinary NGAL levels are associated with NT-proBNP (p > 0.05). CONCLUSION Our findings show an association between NT-proBNP and proteinuria in type II diabetic patients with macroalbuminuria but not with serum and urine NGAL.
Collapse
|
19
|
Musial K, Zwolinska D, Pruthi R, Sinha M, Casula A, Lewis M, Tse Y, Maxwell H, O'Brien C, Inward C, Sharaf E, Fadel F, Bazaraa H, Hegazy R, Essam R, Manickavasagar B, Shroff R, McArdle A, Ledermann S, Shaw V, Van't Hoff W, Paudyal B, Prado G, Schoeneman M, Nepal MK, Feygina V, Bansilal V, Tawadrous H, Mongia AK, Melk A, Kracht D, Doyon A, Zeller R, Litwin M, Duzowa A, Sozeri B, Bayzit A, Caliskan S, Querfeld U, Wuhl E, Schaefer F, Schmidt B, Canpolat N, Caliskan S, Kara Acar M, Pehlivan S, Tasdemir M, Sever L, Nusken E, Taylan C, von Gersdorff G, Schaller M, Barth C, Dotsch J, Roomizadeh P, Gheissari A, Abedini A, Garzotto F, Zanella M, Kim J, Cena R, Neri M, Nalesso F, Brendolan A, Ronco C, Canpolat N, Sever L, Celkan T, Lacinel S, Tasdemir M, Keser A, Caliskan S, Taner Elmas A, Tabel Y, Ipek S, Karadag A, Elmas O, Ozyalin F, Hoxha (Qosja) A, Gjyzari A, Tushe E, Said RM, Abdel Fattah MA, Soliman DA, Mahmoud SY, Hattori M, Uemura O, Hataya H, Ito S, Hisano M, Ohta T, Fujinaga S, Kise T, Goto Y, Matsunaga A, Hashimoto T, Tsutsumi Y, Ito N, Akizawa T, Maher S, Cho BS, Choi YM, Suh JS, Farid F, El-Hakim I, Salman M, Rajnochova Bloudickova S, Viklicky O, Seeman T, Yuksel S, Caglar M, Becerir T, Tepeli E, Calli Demirkan N, Yalcin N, Ergin A, Hladik M, Sigutova R, Vsiansky F, Safarcik K, Svagera Z, Abd El Monem Soliman N, Bazaraa HM, Nabhan MM, Badr AM, Abd El Latif Shahin M, Skrzypczyk P, Panczyk-Tomaszewska M, Roszkowska-Blaim M, Wawer Z, Bienias B, Zajaczkowska M, Szczepaniak M, Pawlak-Bratkowska M, Tkaczyk M, Kilis-Pstrusinska K, Jakubowska A, Prikhodina L, Ryzhkova O, Poltavets N, Polyakov V. Paediatric nephrology II. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
20
|
Abstract
We aimed to determine the independent predictors of cardiovascular risk in polycystic ovarian syndrome (PCOS). Ninety-one PCOS and 51 control patients were enrolled to our prospective cross sectional case-control study. In early follicular phase hormonal and lipid profile, fasting insulin and CRP (hs-CRP) levels and glucose levels on fasting and 2 h after the 75 g glucose intake were determined. Insulin resistance (IR) was evaluated with homeostasis model assessment and free testosterone was determined with free androgen index. PCOS was found to be associated with dyslipidemia, hyperandrogenism, IR and sub-clinical inflammation. The prevalence of overweight-obesity (41.8% vs. 25.5%, p = 0.038), IR (42.9% vs. 23.5%, p = 0.035) and glucose intolerance (15.38% vs. 1.96%, p = 0.043) were significantly higher in PCOS compared to control group. Independent predictors of the risk of elevated hs-CRP level were PCOS status (OR = 5, 95% CI: 1.55-16.14, p = 0.007) and high BMI (OR = 4.2, 95% CI: 1.2-14.2, p = 0.022) and high BMI (OR = 1.2, 95% CI: 1.05-1.4, p = 0.007) and of TC/HDL ratio was high BMI (OR = 1.21, 95% CI: 1.05-1.4, p = 0.009) and increasing age (OR = 1.11, 95% CI: 1.01-1.2, p = 0.04). The presence of PCOS, independent from obesity and IR, is the strongest predictor of elevated hs-CRP level. Obesity and advanced age further increases the cardiovascular risk in PCOS.
Collapse
Affiliation(s)
- Ilgin Türkçüoğlu
- Department of Obstetrics and Gynecology, İnönü University School of Medicine, Malatya, Turkey.
| | | | | | | | | |
Collapse
|
21
|
Demirel U, Harputluoglu MMM, Seckin Y, Ciralik H, Temel I, Ozyalin F, Otlu B, Yilmaz B, Dincturk MS, Aladag H. An antibody of TNF-alpha did not prevent thioacetamide-induced hepatotoxicity in rats. Hum Exp Toxicol 2010; 30:560-6. [DOI: 10.1177/0960327110374206] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Tumor necrosis factor (TNF)-α antibodies have been shown to reduce liver damage in different models. We investigated the effects of infliximab (a TNF-α antibody) on liver damage in thioacetamide (TAA)-induced hepatotoxicity in rats. Group 1 (n = 8) was the control group. In group 2 (n = 8), the TAA group, the rats received 300 mg/kg intraperitoneal (ip) TAA daily for 2 days. In group 3 (n = 8), the TAA + Infliximab (INF) group, infliximab (5 mg/kg ip daily) was administered 48 hours before the first dose of TAA daily for 2 days and was maintained for 4 consecutive days. In group 4 (n = 8), the INF group, the rats received only ip infliximab (5 mg/kg) daily. Livers were excised for histopathological and biochemical tests (thiobarbituric-acid-reactive substances [TBARS], and myeloperoxidase [MPO]). Serum ammonia, aspartate transaminase (AST), alanine transaminase (ALT), TNF-α, liver TBARS and MPO levels, and liver necrosis and inflammation scores in the TAA group were significantly higher than in the control and INF groups (all p < 0.01). All parameters except AST were not significantly different between TAA and TAA + INF. In conclusion, our results suggest that oxidative stress plays an important role in TAA-induced hepatotoxicity, and infliximab does not improve oxidative liver damage.
Collapse
Affiliation(s)
- Ulvi Demirel
- Department of Gastroenterology, Firat University Medical Faculty, Elazig, Turkey
| | | | - Yuksel Seckin
- Department of Gastroenterology, Inonu University Medical Faculty, Malatya, Turkey
| | - Harun Ciralik
- Department of Pathology, Sutcu Imam University Medical Faculty, Kahramanmaras, Turkey
| | - Ismail Temel
- Department of Biochemistry, Inonu University Medical Faculty, Malatya, Turkey
| | - Fatma Ozyalin
- Department of Biochemistry, Inonu University Medical Faculty, Malatya, Turkey
| | - Baris Otlu
- Department of Microbiology, Inonu University Medical Faculty, Malatya, Turkey
| | - Bilgic Yilmaz
- Department of Gastroenterology, Inonu University Medical Faculty, Malatya, Turkey
| | | | - Hulya Aladag
- Department of Obstetrics and Gynecology, Malatya Devlet Hastanesi, Malatya, Turkey
| |
Collapse
|
22
|
Taskapan MC, Keskin L, Sahin I, Ozyalin F, Atmaca H, Temel I, Taskapan H. Relationship between insulin resistance and malondialdehyde levels in dialysis patients. Ren Fail 2007; 29:649-51. [PMID: 17654332 DOI: 10.1080/08860220701392355] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
|
23
|
Taskapan MC, Taskapan H, Sahin I, Keskin L, Atmaca H, Ozyalin F. Serum leptin, resistin, and lipid levels in patients with end stage renal failure with regard to dialysis modality. Ren Fail 2007; 29:147-54. [PMID: 17365928 DOI: 10.1080/08860220601095827] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
UNLABELLED Little information is available on the relationship between serum resistin levels and other adipokines with serum lipid levels and insulin resistance in uremic patients under different dialysis modalities. METHODS This study investigated the effects of dialysis modality on serum leptin, adiponectin, resistin, interleukin 6 (IL-6), and tumor necrosis factor (TNF) alpha levels in age, sex, and total adipose tissue mass (TATM); matched 30 hemodialysis (HD) patients, 30 continuous peritoneal dialysis (CAPD) patients, and 30 healthy controls; and evaluated the relationship between these adipokines and dyslipidemia and insulin resistance. RESULTS Serum resistin, adiponectin, IL-6, TNF-alpha, and high sensitive C reactive protein (hsCRP) levels were significantly increased in dialysis patients compared to controls (p < 0.05). In CAPD patients, serum leptin, resistin, triglycerides, and total cholesterol levels were higher than those in HD patients (p < 0.05). Leptin levels were positively correlated with TATM, serum triglycerides, total cholesterol, and low density lipoprotein (LDLc) levels in both dialysis groups. Resistin levels were found to positively correlate with TATM and triglycerides in CAPD patients. No relationship was found between the homeostasis model assessment-insulin resistance index (HOMA-IR) and adipokines studied. CONCLUSION Serum leptin, resistin, triglycerides, and total cholesterol levels were higher in CAPD patients. Leptin levels were positively correlated with TATM, serum triglycerides, total cholesterol, and LDLc levels in dialysis patients. Resistin levels were positively correlated with TATM and triglycerides in CAPD patients. Glucose load during CAPD may be an important factor in increased in leptin, resistin, triglycerides, and total cholesterol levels in CAPD patients. These results highlight the importance of leptin and resistin as determinants of dyslipidemia, especially in CAPD patients.
Collapse
Affiliation(s)
- M Cagatay Taskapan
- Biochemistry Department, Turgut Ozal Medical Center of Inonu University Medical Faculty, Malatya, Turkey.
| | | | | | | | | | | |
Collapse
|
24
|
Taşkapan C, Atambay M, Aycan OM, Ozyalin F, Yoloğlu S, Miman O, Daldal N. [Serum zinc (Zn) levels in patients with giardiosis]. Turkiye Parazitol Derg 2007; 31:14-6. [PMID: 17471405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
A decrease may occur in the levels of trace elements due to absorption deficiency resulting from giardiosis. This study was designed in order to reveal the difference in serum zinc levels between patients with giardiosis and healthy controls. Thirty one patients who were diagnosed as having giardiosis after detection of G. intestinalis and 31 healthy controls participated in the study. A significant decrease was observed in serum zinc levels of patients with giardiosis compared to those of controls (p < 0.0001). In conclusion, we suggest that parasitic diseases should also kept in mind in the differential diagnosis of cases characterized by low serum zinc levels.
Collapse
Affiliation(s)
- Cağatay Taşkapan
- Inönü Universitesi Tip Fakültesi, Biyokimya Anabilim Dali, Malatya, Turkey
| | | | | | | | | | | | | |
Collapse
|
25
|
Er H, Doganay S, Evereklioglu C, Turkoz Y, Gündüz A, Borazan M, Ozyalin F. Comparison of the effects of argon and neodymium:YAG laser iridotomy on cytokines in the rabbit aqueous humor. Eur J Ophthalmol 2002; 12:183-7. [PMID: 12113562 DOI: 10.1177/112067210201200302] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE We compared the effects in rabbits of iridotomy using the argon or Nd:YAG laser on cytokines such as interleukin 1-beta (IL-1beta), interleukin 6 (IL-6), interleukin 8 (IL-8), and tumor necrosis factor-alpha (TNF-alpha). METHODS Twenty pigmented rabbits (20 eyes) underwent argon and Nd:YAG iridotomy under general and topical anesthesia. Group 1 (10 right eyes) was treated with the argon laser and group 2 (10 right eyes) with the Nd:YAG laser, using an equal number of shots and the same laser parameters for each group. Left eyes in both groups were evaluated as controls. Aqueous humor specimens were collected from each eye preoperatively and 1 and 3 days postoperatively. RESULTS Aqueous IL-6 and TNF-alpha levels rose more on day 1 in the Nd:YAG group than the argon group. IL-6 and TNF-alpha levels were significantly higher on days 1 and 3 than the pre-operative and control levels (p<0.05). TNF-alpha levels on day 1 were significantly lower in the Nd:YAG than the argon group. There were no significant differences between the two laser groups for IL-6 on days 1 and 3. IL-1beta and IL-8 did not change CONCLUSIONS Our findings suggest that cytokines, particularly IL-6 and TNF-alpha, may be inflammatory mediators in the early inflammation following argon and Nd:YAG laser iridotomies. These results also indicate that cytokines contribute to the acute effects of Nd:YAG and argon laser applications on inflammation.
Collapse
Affiliation(s)
- H Er
- Department of Ophthalmology, Inonu University School of Medicine, Turgut Ozal Medical Center, Malatya, Turkey.
| | | | | | | | | | | | | |
Collapse
|