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Balaban Yucesan F, Demir EN, Ozer Yaman S, Orem A, Dokuz Murat B, Bilgin B. Short-Term Standard Diet Consumption Prior to the Oral Fat Tolerance Test Modulates the Postprandial Triglyceride Response. Metabolites 2023; 13:1019. [PMID: 37755299 PMCID: PMC10537398 DOI: 10.3390/metabo13091019] [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: 08/04/2023] [Revised: 09/06/2023] [Accepted: 09/14/2023] [Indexed: 09/28/2023] Open
Abstract
We hypothesized that the consumption of a 3-day standard diet (SD) prior to the oral fat tolerance test (OFTT), used to evaluate postprandial lipemia, may counteract the undesirable effects of individual dietary habits on the test results. The OFTT was applied to 22 healthy adults (11 females and 11 males), after their habitual diets (HDs) and following the consumption of a 3-day SD (45-60% energy from carbohydrate, 20-35% from fat, and 10-20% from protein). Plasma triglyceride (TG) concentrations were measured during fasting and at the fourth hour of the OFTT. A 3-day SD significantly reduced fasting and fourth-hour TG concentrations and delta TG values by 10%, 12.8%, and 22.7%, respectively. Decreases were observed in fasting and fourth-hour TG and delta TG values following the 3-day SD compared to the HD in subjects with fasting TG concentrations between 89 and 180 mg/dL (p = 0.062, p = 0.018, and 0.047, respectively). As a result, the consumption of a 3-day standardized diet prior to the OFTT may be useful to eliminate the false positive or negative effects of individual dietary habits on test results and to correctly identify individuals who should be administered the OFTT.
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Affiliation(s)
- Fulya Balaban Yucesan
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey; (E.N.D.); (S.O.Y.); (A.O.); (B.B.)
| | - Eda Nur Demir
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey; (E.N.D.); (S.O.Y.); (A.O.); (B.B.)
| | - Serap Ozer Yaman
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey; (E.N.D.); (S.O.Y.); (A.O.); (B.B.)
| | - Asım Orem
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey; (E.N.D.); (S.O.Y.); (A.O.); (B.B.)
| | - Busra Dokuz Murat
- Department of Nutrition and Dietetics, Institute of Health Sciences, Marmara University, 34854 Istanbul, Turkey;
| | - Busra Bilgin
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey; (E.N.D.); (S.O.Y.); (A.O.); (B.B.)
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Ozer Yaman S, Balaban Yucesan F, Orem A, Orem C, Vanizor Kural B, Yaman H. An increased disulfide/native thiol ratio and oxidative stress index in metabolic syndrome patients with postprandial lipemia. Int J Diabetes Dev Ctries 2022. [DOI: 10.1007/s13410-022-01095-y] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Kara H, Orem A, Yulug E, Balaban Yucesan F, Kerimoglu G, Vanizor Kural B, Ozer Yaman S, Bodur A, Turedi S, Alasalvar C. Effects of hazelnut supplemented diet on doxorubicin-induced damage of reproductive system in male rats. J Food Biochem 2021; 45:e13973. [PMID: 34664725 DOI: 10.1111/jfbc.13973] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 08/26/2021] [Accepted: 09/28/2021] [Indexed: 11/27/2022]
Abstract
The present study was objected to investigate the effect of hazelnut supplemented diet on the levels of oxidative stress and fertility parameters against doxorubicin-induced testicular and epididymal tissue damage of male rats. Rats were randomly divided into four groups (each n = 8), namely control group (CG), doxorubicin group (DG), doxorubicin + hazelnut group (DHG), and doxorubicin + vitamin E group (DEG). This is the first study designed using DHG. Doxorubicin was intraperitoneally injected into all diet groups except CG at a dose of 3 mg/kg body weight on days 1, 7, 14, 21, and 28. In addition, DHG was supplemented with a hazelnut diet at a dose of 3 g/kg body weight/day and vitamin E was added to the drinking water of DEG at a dose of 50 mg/kg body weight/day. DHG reversed the side effects of doxorubicin and positively improved the epididymis sperm quality, testicular and epididymal tissue injury, testosterone level, epididymis oxidative stress index, and lipid peroxidation in male rats. These findings suggest that hazelnut has positive effects against doxorubicin dependent damage on male rats and it may be a promising supplement for amelioration of testicular toxicity. PRACTICAL APPLICATIONS: Hazelnut has numerous positive health effects due to its macronutrients, micronutrients, lipid-soluble compounds and bioactive phenolics. Studies have shown that regular consumption of hazelnut may have a positive effect on lipid parameters, oxidative stress, inflammation markers, and endothelial dysfunction in both healthy people and patients with chronic diseases. Although doxorubicin (Adriamycin, DOX) is an antibiotic that has been widely used in cancer treatment for nearly 30 years, it causes organ toxicity including testicular tissue. Hazelnut may have positive effects on the damage caused by DOX in the reproductive system. However, studies on the effect of hazelnut on male reproductive health are scarce. Therefore, this study provided a basis for the clinical evaluation of the effects of hazelnut on the reproductive system.
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Affiliation(s)
- Hanife Kara
- Faculty of Health Sciences, Department of Nutrition and Dietetics, Amasya University, Amasya, Turkey.,Graduate School of Health Sciences, Department of Medical Biochemistry, Karadeniz Technical University, Trabzon, Turkey
| | - Asım Orem
- Faculty of Medicine, Department of Medical Biochemistry, Karadeniz Technical University, Trabzon, Turkey
| | - Esin Yulug
- Faculty of Medicine, Department of Histology and Embryology, Karadeniz Technical University, Trabzon, Turkey
| | - Fulya Balaban Yucesan
- Faculty of Medicine, Department of Medical Biochemistry, Karadeniz Technical University, Trabzon, Turkey
| | - Gokcen Kerimoglu
- Faculty of Medicine, Department of Histology and Embryology, Karadeniz Technical University, Trabzon, Turkey
| | - Birgul Vanizor Kural
- Faculty of Medicine, Department of Medical Biochemistry, Karadeniz Technical University, Trabzon, Turkey
| | - Serap Ozer Yaman
- Graduate School of Health Sciences, Department of Medical Biochemistry, Karadeniz Technical University, Trabzon, Turkey
| | - Akın Bodur
- Graduate School of Health Sciences, Department of Medical Biochemistry, Karadeniz Technical University, Trabzon, Turkey
| | - Sibel Turedi
- Faculty of Medicine, Department of Histology and Embryology, Harran University, Sanlıurfa, Turkey
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Yaman SO, Orem A, Yucesan FB, Kural BV, Orem C. Evaluation of circulating miR-122, miR-30c and miR-33a levels and their association with lipids, lipoproteins in postprandial lipemia. Life Sci 2020; 264:118585. [PMID: 33058914 DOI: 10.1016/j.lfs.2020.118585] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 08/05/2020] [Revised: 10/02/2020] [Accepted: 10/06/2020] [Indexed: 10/23/2022]
Abstract
AIMS Postprandial lipemia is characterized by an increase in triglyceride-rich lipoproteins after fatty meals. MicroRNAs (miRs) play important roles in lipid and lipoprotein metabolism. The aim of this study was to determine relationship between levels of plasma miR expression and lipoprotein metabolism-related proteins in subjects with normal (NPR) and high postprandial response (HPR) in postprandial period. MATERIALS AND METHODS The oral fat tolerance test was applied to 22 individuals with NPR and 22 with HPR. KEY FINDINGS Increased expressions of miR-122 and miR-33a and miR-122/30c ratio and decreased miR-30c expression were observed in fasting and postprandial period of HPR compared with NPR. ROC curve analysis showed that miR-122/30c ratio is a good biomarker for postprandial lipemia (AUC: 0.97, p < 0.001). Levels of TG, MTTP, and Apo B-48 and chylomicron (CM) particle size were significantly higher in HPR than in NPR (p < 0.05). The miR-122/30c ratio at 2 h was positively correlated with CM particle size, and with TG, MTTP and Apo B-48 levels at 4th hour. miR-33a expression decreased in HPR and was negatively correlated with ABCA1 and Apo A-1 levels at 4th hour of the postprandial period in both groups. SIGNIFICANCE Increased miR-122 and decreased miR-30c expression levels in HPR may play critical roles in elevated or prolonged postprandial lipemia. The miR122/30c ratio exhibited good association with MTTP, Apo B-48 and TG levels, and with CM particle size, and may be a reliable marker for evaluating postprandial lipemia. miR-33a may also play a key role in decreased HDL-C in postprandial lipemia.
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Affiliation(s)
- Serap Ozer Yaman
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey..
| | - Asım Orem
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey..
| | - Fulya Balaban Yucesan
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Birgul Vanizor Kural
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Cihan Orem
- Department of Cardiology, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
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Cakir M, Senyuva S, Kul S, Sag E, Cansu A, Yucesan FB, Yaman SO, Orem A. Neurocognitive Functions in Infants with Malnutrition; Relation with Long-chain Polyunsaturated Fatty Acids, Micronutrients Levels and Magnetic Resonance Spectroscopy. Pediatr Gastroenterol Hepatol Nutr 2019; 22:171-180. [PMID: 30899693 PMCID: PMC6416383 DOI: 10.5223/pghn.2019.22.2.171] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 08/08/2018] [Accepted: 09/01/2018] [Indexed: 11/21/2022] Open
Abstract
PURPOSE Malnutrition may influence neurocognitive development in children by directly affecting the brain structural development, or indirectly by affecting the children's cognition experience. Malnutrition alters the cell numbers, cell migration, synaptogenesis, and neurotransmission due to inadequate availability of necessary micronutrients to support cell growth. We aimed to analyze neurocognitive development in infants with malnutrition and its association with long chain polyunsaturated fatty acids (LC-PUFA), micronutrients levels and magnetic resonance spectroscopy (MRS) findings. METHODS The study included two groups; group 1, infants with malnutrition (n=24), group 2; healthy infants (n=21). Peripheral blood was obtained from the participants for studying micronutrients and LC-PUFA levels. The neurocognitive development was analyzed by the use of an Ankara Developmental Screening Inventory test. MRS were performed on all infants. RESULTS All parameters of neurocognitive development and serum calcium (9.6±0.9 mg/dL vs. 10.4±0.3 mg/dL, p<0.05) and magnesium (2.02±0.27 mg/dL vs. 2.2±0.14 mg/dL, p<0.05) levels were noted as being low in infants with marked malnutrition. No difference was found in LC-PUFA levels between healthy and malnourished infants. Thalamic choline/creatine levels were significantly high in infants with malnutrition (1.33±0.22 vs. 1.18±0.22, p<0.05). Total neurocognitive development in infants was positively correlated with serum calcium levels (p<0.05, r=0.381). CONCLUSION Calcium supplementation may improve neurocognitive development in malnourished infants.
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Affiliation(s)
- Murat Cakir
- Department of Pediatric Gastroenterology Hepatology and Nutrition, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Sukran Senyuva
- Department of Pediatrics, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Sibel Kul
- Department of Radiology, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Elif Sag
- Department of Pediatric Gastroenterology Hepatology and Nutrition, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Ali Cansu
- Department of Pediatric Neurology, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Fulya Balaban Yucesan
- Department of Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Serap Ozer Yaman
- Department of Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Asim Orem
- Department of Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
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Orem A, Yaman SO, Altinkaynak B, Kural BV, Yucesan FB, Altinkaynak Y, Orem C. Relationship between postprandial lipemia and atherogenic factors in healthy subjects by considering gender differences. Clin Chim Acta 2018; 480:34-40. [PMID: 29408168 DOI: 10.1016/j.cca.2018.01.038] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 01/17/2018] [Accepted: 01/20/2018] [Indexed: 01/14/2023]
Abstract
BACKGROUND Postprandial triglyceride concentrations are clinically significant and independent predictor of cardiovascular disease risk. The purpose of this study was to determine postprandial TG ranges in healthy subjects by considering gender differences. Secondly, assess the relationship between postprandial lipemia and atherogenic indicators. Finally, investigate the use of the postprandial 4h TG test instead of the area under the curve (AUC). METHODS Postprandial lipemia was investigated using the standardized oral fat tolerance test (OFTT) in 96 healthy subjects (45 female/51 male). Study group was categorized into tertiles based on AUC calculated using TG concentrations at fasting and 2, 4 and 6h after OFTT. Lipid, lipoproteins, apolipoproteins, LDL subfractions and oxidized LDL (oxLDL) were evaluated in tertiles in both sex groups. RESULTS The cut-off concentrations for postprandial 4-hour TG concentrations in female and male were 3.20 mmol/L and 4.59 mmol/L, respectively. We observed higher concentrations for atherogenic indicates like small dense-low density lipoprotein (sdLDL), oxLDL values in top tertiles for both groups (P < 0.05). Cohen's kappa coefficients for the agreement of AUC and 4h postprandial TG tests were 0.935, 0.970, 0.469 (P = 0.0001) in female, male and total study group, respectively. CONCLUSION Due to predominant effects of gender differences on postprandial lipemia, postprandial TG cut-off values for female and male subjects should be determined separately. Postprandial lipemia may be associated with atherogenic tendency by changing lipids, lipoproteins, sdLDL and oxLDL concentrations, especially in males. Four-hour postprandial TG concentrations emerged as a useful and reliable marker for evaluation of postprandial lipemia.
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Affiliation(s)
- Asım Orem
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey.
| | - Serap Ozer Yaman
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Buket Altinkaynak
- Department of Nursing, Faculty of Health, Ardahan University, Ardahan, Turkey
| | - Birgül Vanizor Kural
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Fulya Balaban Yucesan
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Yahya Altinkaynak
- Program of Laborant and Veterinary Health, Department of Veterinary Medicine, Ardahan University, Ardahan, Turkey
| | - Cihan Orem
- Department of Cardiology, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
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Balaban Yucesan F, Orem A, Aksu Arica D, Altinkaynak B, Aksan B, Ozer Yaman S, Kural B, Bahadir S. Soluble tumor necrosis factor-like weak inducer of apoptosis and soluble CD163 levels in patients with behcet’s disease. Atherosclerosis 2017. [DOI: 10.1016/j.atherosclerosis.2017.06.449] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Ilter A, Orem C, Balaban Yucesan F, Sahin M, Hosoglu Y, Kurumahmutoglu E, Ozer Yaman S, Orem A. Evaluation of serum sTWEAK and sCD163 levels in patients with acute and chronic coronary artery disease. Int J Clin Exp Med 2015; 8:9394-9402. [PMID: 26309601 PMCID: PMC4538003] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Accepted: 06/04/2015] [Indexed: 06/04/2023]
Abstract
BACKGROUND Recent studies have suggested soluble tumor necrotizing factor-like weak inducer of apoptosis (sTWEAK) and sCD163 may be a potential cardiovascular biomarker. We aimed to evaluate sTWEAK and sCD163 levels and predictive values in patients with chronic coronary artery disease (CAD) and acute coronary syndrome (ACS). METHODS Two hundred fourteen angiography-made patients were enrolled in the study and divided into 3 groups: 30 controls with normal angiograms, 99 patients with ACS, 85 patients with chronic CAD. sTWEAK, sCD163 and CRP levels were measured. Receivers operating characteristic (ROC) curve analysis were performed to determine the predictive values of sTWEAK and sCD163 levels and the sCD163/sTWEAK ratio. Gensini scores were used to assess severity of CAD. RESULTS sTWEAK levels in chronic CAD and ACS patients were lower compared to the control group (P<0.0001). sCD163 levels (P<0.0001) and the sCD163/sTWEAK ratio (P<0.0001) were higher in the ACS patients compared to the control and chronic CAD patients. ROC analysis revealed low sTWEAK level and high sCD163/sTWEAK ratio predicted chronic CAD, and low sTWEAK, high sCD163, CRP levels and sCD163/sTWEAK ratio predicted ACS. According to ROC analyses, significance of sTWEAK levels for chronic CAD was more marked compared to ACS (P<0.0001 vs P=0.001) and significance of sCD163/sTWEAK ratio was greater than sTWEAK for ACS (P<0.0001 vs P=0.001). These parameters didn't correlate with severity of disease, obtained gensini scoring, in chronic CAD. CONCLUSIONS It was concluded thatsTWEAK level may be a diagnostic marker of especially chronic CAD, sCD163 level of ACS, and the sCD163/sTWEAK ratio of both chronic CAD and ACS.
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Affiliation(s)
- Abdulselam Ilter
- Department of Cardiology, Sanlıurfa Mehmet Akif Inan Training and Research HospitalSanliurfa, Turkey
| | - Cihan Orem
- Department of Cardiology, Faculty of Medicine, Karadeniz Technical UniversityTrabzon, Turkey
| | - Fulya Balaban Yucesan
- Department of Biochemistry, Faculty of Medicine, Karadeniz Technical UniversityTrabzon, Turkey
| | - Mursel Sahin
- Department of Cardiology, Faculty of Medicine, Karadeniz Technical UniversityTrabzon, Turkey
| | - Yusuf Hosoglu
- Department of Cardiology, Faculty of Medicine, Karadeniz Technical UniversityTrabzon, Turkey
| | - Elif Kurumahmutoglu
- Department of Cardiology, Faculty of Medicine, Karadeniz Technical UniversityTrabzon, Turkey
| | - Serap Ozer Yaman
- Department of Biochemistry, Faculty of Medicine, Karadeniz Technical UniversityTrabzon, Turkey
| | - Asim Orem
- Department of Biochemistry, Faculty of Medicine, Karadeniz Technical UniversityTrabzon, Turkey
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Ulusoy S, Ozkan G, Mungan S, Orem A, Yulug E, Alkanat M, Yucesan FB. GSPE is superior to NAC in the prevention of contrast-induced nephropathy: Might this superiority be related to caspase 1 and calpain 1? Life Sci 2014; 103:101-10. [DOI: 10.1016/j.lfs.2014.03.030] [Citation(s) in RCA: 18] [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: 11/12/2013] [Revised: 02/19/2014] [Accepted: 03/26/2014] [Indexed: 12/28/2022]
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Orem A, Yucesan FB, Orem C, Akcan B, Kural BV, Alasalvar C, Shahidi F. Hazelnut-enriched diet improves cardiovascular risk biomarkers beyond a lipid-lowering effect in hypercholesterolemic subjects. J Clin Lipidol 2013; 7:123-31. [DOI: 10.1016/j.jacl.2012.10.005] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Revised: 10/18/2012] [Accepted: 10/22/2012] [Indexed: 11/16/2022]
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Vanizor Kural B, Deger O, Erem C, Balaban Yucesan F, Barlak Y, Turan I, Aliyazicioglu R. Sequence Variant in the LPIN1 gene in Patients with Metabolic Syndrome. Turk J Bioch 2013. [DOI: 10.5505/tjb.2013.41033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Ulusoy S, Ozkan G, Yucesan FB, Ersöz Ş, Orem A, Alkanat M, Yuluğ E, Kaynar K, Al S. Anti-apoptotic and anti-oxidant effects of grape seed proanthocyanidin extract in preventing cyclosporine A-induced nephropathy. Nephrology (Carlton) 2012; 17:372-9. [PMID: 22257215 DOI: 10.1111/j.1440-1797.2012.01565.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIM Although the pathogenesis of cyclosporine (CsA) nephropathy is not completely understood, it is attributed to oxidative damage and apoptosis. Grape seed proanthocyanidin extract (GSPE) is a molecule with anti-oxidant and anti-apoptotic properties. Our aim was to demonstrate the effects of GSPE in preventing CsA nephropathy. METHODS Twenty-four Sprague-Dawley rats were divided into four groups. The control, GSPE, CsA and CsA+GSPE groups were given 1 mL olive oil, 100 mg/kg GSPE, 25 mg/kg CsA and 100 mg/kg GSPE+25 mg/kg CsA, respectively. On day 21, blood samples were taken for blood urea nitrogen (BUN), creatinine and CsA levels, and renal tissue was used for total oxidant system (TOS), total anti-oxidant system (TAS), oxidative stress index (OSI) and malondialdehyde (MDA) measurements. In addition to renal histopathology, apoptosis staining was performed on renal tissue. RESULTS The BUN, creatinine, TOS, OSI, MDA, histopathological score, and apoptotic index exhibited increases in the CsA group. In the CsA+GSPE group, however, BUN, creatinine, OSI, MDA, renal histopathological score and apoptotic index (AI) decreased and TAS levels increased. In addition, there was no difference between the CsA and CsA+GSPE groups with regard to CsA levels. CONCLUSION We demonstrated that GSPE prevents CsA nephropathy and that this effect is achieved by anti-apoptotic and anti-oxidant activity. We also achieved a significant recovery in kidney functions without affecting CsA plasma levels.
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Affiliation(s)
- Sukru Ulusoy
- Departments of Nephrology, School of Medicine, Karadeniz Technical University, Trabzon, Turkey.
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Ozkan G, Ulusoy S, Orem A, Ersoz S, Alkanat M, Yucesan FB, Kaynar K, Al S. Protective effect of the grape seed proanthocyanidin extract in a rat model of contrast-induced nephropathy. Kidney Blood Press Res 2012; 35:445-53. [PMID: 22677922 DOI: 10.1159/000337926] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2011] [Accepted: 03/01/2012] [Indexed: 11/19/2022] Open
Abstract
AIM Contrast-induced nephropathy (CIN) is a common cause of hospital-acquired acute renal failure. Although it is so common, there has been no approved therapy yet. We aimed to investigate the effect of grape seed proanthocyanidin extract (GSPE) on preventing CIN. MATERIALS AND METHODS 24 rats were divided into four groups as control group, GSPE group, contrast medium (CM) group, and CM+GSPE group. The experiment was discontinued on the ninth day. Blood samples were obtained for the measurement of renal function parameters. Renal tissues of the rats were removed for the analysis of oxidative system parameters. In addition to renal histopathology, transferase-mediated deoxyuridine triphosphate nick end labeling (TUNEL) was performed to determine apoptosis. RESULTS There was a significant increase in BUN, creatinine, malondialdehyde (MDA) levels, apoptotic index (AI) and histopathological alteration in the CM group as compared to the control group. Furthermore, BUN, creatinine, MDA, total oxidant system and oxidative stress index levels, AI as well as renal histopathological alteration were significantly decreased in the CM+GSPE group. CONCLUSION For the first time in the literature, we showed that GSPE provided biochemical and histopathological improvement in CIN. Our findings revealed that this improvement was associated with the decrease in oxidative damage and apoptosis.
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Affiliation(s)
- Gulsum Ozkan
- Department of Nephrology, Karadeniz Technical University, School of Medicine, Trabzon, Turkey. gulsumozkan78 @ hotmail.com
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Ulusoy S, Ozkan G, Ersoz S, Orem A, Alkanat M, Yucesan FB, Kaynar K, Al S. The effect of grape seed proanthocyanidin extract in preventing amikacin-induced nephropathy. Ren Fail 2012; 34:227-34. [PMID: 22263836 DOI: 10.3109/0886022x.2011.643391] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND/AIMS Nephrotoxicity induced by aminoglycosides (AGs) limits their clinical use. As yet, no molecules have been approved to prevent AG nephropathy. We aim to investigate the effectiveness of grape seed proanthocyanidin extract (GSPE) in the prevention of amikacin (AK)-induced nephrotoxicity. METHODS A total of 24 rats were allocated into control, GSPE, AK, and AK + GSPE groups. While 1 mL saline was administered for 6 days in control and AK groups, 100 mg/kg GSPE was administered in GSPE and AK + GSPE groups. On day 7, intraperitoneal (i.p.) saline was administered in control and GSPE groups, while 1.2 g/kg i.p. AK was administered in AK and AK + GSPE groups. The experiment was terminated on day 9. Blood samples were taken for the measurement of renal functions. Renal tissues of the rats were removed for the analysis of malondialdehyde (MDA), total oxidant system (TOS), total antioxidant system, oxidative stress index (OSI), and for histopathological examination. RESULTS MDA level was found to be lower in GSPE group compared with other study groups. There was significantly more renal histopathological damage and higher blood urea nitrogen, creatinine, TOS, OSI, and MDA levels in the AK group compared with the control and AK + GSPE groups. The same parameters showed significant improvement in AK + GSPE group compared with AK group. CONCLUSION Our findings demonstrate for the first time that GSPE reduces oxidative damage in AK nephropathy and provides biochemical and renal histopathological improvements.
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Affiliation(s)
- Sukru Ulusoy
- Department of Nephrology, School of Medicine, Karadeniz Technical University, Trabzon, Turkey.
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