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Tufekci D, Nuhoglu I, Ayan SS, Gunay YE, Coskun H, Bilginer MC, Ucuncu O, Kocak M, Yaman SO, Karahan SC. Can signal peptide-CUB-EGF domain-containing protein 1 (SCUBE-1) be used as an indicator of endothelial dysfunction in acromegaly patients? Endocrine 2023; 82:152-160. [PMID: 37450216 DOI: 10.1007/s12020-023-03444-1] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 06/30/2023] [Indexed: 07/18/2023]
Abstract
PURPOSE Acromegaly is closely related to increased oxidative stress and endothelial dysfunction (ED). This study aimed to evaluate, for the first time in the literature, signal peptide-CUB-EGF domain-containing protein 1 (SCUBE-1) and endothelial nitric oxide synthase e(NOS) levels in the setting of acromegaly. METHOD A total of 56 acromegaly patients and a control group composed of 30 healthy volunteers were included in this study. In the postoperative follow-up, patients were grouped as active or in-remission according to their GH and IGF-1 levels in oral glucose stimulation test (OGST). After detailed physical examination of acromegaly patients and the control subjects, 8-hour fasting blood samples were collected to evaluate biochemical parameters including lipid profile, anterior pituitary hormones, and SCUBE-1 and e(NOS) levels. RESULTS Inactive and active acromegaly was noted in 78.6% and 21.4% of patients, respectively. The median (min-max) SCUBE-1 levels were significantly higher in the inactive acromegaly and active acromegaly groups than in the control group (1.6(0.4-2.4) and 1.8(1.1-2.5) vs. 0.4(0.2-1.0) ng/mL, respectively, p < 0.001 for each). The median (min-max) e(NOS) levels were significantly higher in the inactive acromegaly and active acromegaly groups than in the control group (132.7 (26.8-602.9) and 137.3 (69.7-488.7) vs. 83.9 (16.4-218.7) pg/mL, p = 0.018 and p = 0.048, respectively). We have also detected positive correlations of e(NOS) with leukocyte (r = 0.307, p = 0.021) and neutrophil counts (r = 0.309, p = 0.021). CONCLUSION Our study revealed for the first time in literature that SCUBE-1 levels, being a novel marker for ED, were significantly higher in acromegaly patients than in control subjects. When supported with clinical studies, SCUBE-1can be used as an early indicator of endothelial damage in acromegaly patients.
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Affiliation(s)
- Damla Tufekci
- Department of Endocrinology and Metabolism, Recep Tayyip Erdogan University Faculty of Medicine, Rize, Turkey.
| | - Irfan Nuhoglu
- Department of Endocrinology and Metabolism, Karadeniz Technical University Faculty of Medicine, Trabzon, Turkey
| | - Sumeyye Sura Ayan
- Department of Biochemistry, Karadeniz Technical University Faculty of Medicine, Trabzon, Turkey
| | - Yasemin Emur Gunay
- Clinics of Endocrinology and Metabolism, Giresun Training and Research Hospital, Giresun, Turkey
| | - Hulya Coskun
- Department of Endocrinology and Metabolism, Karadeniz Technical University Faculty of Medicine, Trabzon, Turkey
| | - Muhammet Cuneyt Bilginer
- Department of Endocrinology and Metabolism, Karadeniz Technical University Faculty of Medicine, Trabzon, Turkey
| | - Ozge Ucuncu
- Department of Endocrinology and Metabolism, Karadeniz Technical University Faculty of Medicine, Trabzon, Turkey
| | - Mustafa Kocak
- Department of Endocrinology and Metabolism, Karadeniz Technical University Faculty of Medicine, Trabzon, Turkey
| | - Serap Ozer Yaman
- Department of Biochemistry, Karadeniz Technical University Faculty of Medicine, Trabzon, Turkey
| | - Suleyman Caner Karahan
- Department of Biochemistry, Karadeniz Technical University Faculty of Medicine, Trabzon, Turkey
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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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Canpolat S, Ulker N, Yardimci A, Tancan E, Sahin E, Yaman SO, Bulmuş O, Alver A, Ozcan M. Irisin ameliorates male sexual dysfunction in paroxetine-treated male rats. Psychoneuroendocrinology 2022; 136:105597. [PMID: 34861466 DOI: 10.1016/j.psyneuen.2021.105597] [Citation(s) in RCA: 2] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 11/11/2021] [Accepted: 11/11/2021] [Indexed: 01/23/2023]
Abstract
Sexual dysfunction is a common clinical condition due to different causes including the use of selective serotonin reuptake inhibitors (SSRI). Especially, SSRI paroxetine is known to cause numerous types of sexual dysfunction in men. There is growing interest in exercise as a non-pharmacological approach for the treatment of SSRI-induced sexual dysfunction. With these in mind, we investigated the effects of irisin, which is a recently detected exercise-linked hormone, on paroxetine-induced sexual dysfunction in male rats. Our findings showed that circulating irisin levels were lower in paroxetine-induced sexual dysfunction in male rats (20 mg/kg/day for 8 weeks by oral gavage than in vehicle-treated rats). In addition, results from sexual behavioral tests revealed that subcutaneous irisin perfusion (100 ng/kg/day via mini-osmotic pumps for 28 days) ameliorated sexual motivation and copulatory performance in sexually impaired male rats treated with paroxetine. The significantly reduced serum testosterone levels and α1-adrenoceptors (ADRA1A) and tyrosine hydroxylase gene (TH) expression levels in the nucleus accumbens (NAc) in paroxetine-induced sexually dysfunctioning male rats were markedly increased following irisin exposure. Similarly, the expression levels of ADRA1A and TH in the medial preoptic area (mPOA) significantly increased in male rats co-administered with paroxetine and irisin compared to the vehicle-treated male rats. These results demonstrate that irisin may be a therapeutic modality that mimics/supports the beneficial effects of exercise for improving SSRI-associated sexual dysfunction in men through increase in serum testosterone levels and increased expression of α1-adrenoceptors and TH in the NAc and mPOA associated with sexual motivation and copulatory behaviors.
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Affiliation(s)
- Sinan Canpolat
- Department of Physiology, Faculty of Medicine, Firat University, Elazig, Turkey.
| | - Nazife Ulker
- Department of Physiology, Faculty of Medicine, Firat University, Elazig, Turkey
| | - Ahmet Yardimci
- Department of Physiology, Faculty of Medicine, Firat University, Elazig, Turkey
| | - Emre Tancan
- Department of Physiology, Faculty of Medicine, Firat University, Elazig, Turkey
| | - Elif Sahin
- 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
| | - Ozgur Bulmuş
- Department of Physiology, Faculty of Medicine, Balikesir University, Balikesir, Turkey
| | - Ahmet Alver
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Mete Ozcan
- Department of Biophysics, Faculty of Medicine, Firat University, Elazig, Turkey
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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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Mentese A, Dogramaci S, Demir S, Yaman SO, Ince I, Altay DU, Erdem M, Turan I, Alver A. The effect of homocysteine on the expression of CD36, PPARγ, and C/EBPα in adipose tissue of normal and obese mice. Arch Physiol Biochem 2021; 127:437-444. [PMID: 31373231 DOI: 10.1080/13813455.2019.1648517] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 02/08/2023]
Abstract
The purpose of this study was to investigate the effect of homocysteine (Hcy) on CD36, PPARγ, and C/EBPα gene and protein expression in adipose tissue obtained from normal and high-calorie diet obesity models. CD36, PPARγ, and C/EBPα gene expression and protein levels in adipose tissue specimens were determined using the RT-PCR and ELISA methods, respectively. Significantly increased CD36 gene expression was observed in adipose tissue from obese mice, while Hcy significantly reduced CD36 gene expression in adipose tissue from normal and obese mice. PPARγ and C/EBPα gene expression levels decreased significantly in all groups compared to the normal group. In addition, levels of both PPARγ and C/EBPα gene expression were lower with Hcy supplementation compared to their own controls. In conclusion, Hcy's reduction of CD36 gene expression in adipose tissue may be one probable factor in hyperhomocysteinemia representing an independent risk factor for cardiovascular diseases.
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Affiliation(s)
- Ahmet Mentese
- Program of Medical Laboratory Techniques, Vocational School of Health Sciences, Karadeniz Technical University, Trabzon, Turkey
| | - Seniz Dogramaci
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Selim Demir
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Karadeniz Technical University, Trabzon, Turkey
| | - Serap Ozer Yaman
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Imran Ince
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Diler Us Altay
- Department of Chemistry and Chemical Processing Technology, Ulubey Vocational School, Ordu University, Ordu, Turkey
| | - Mehmet Erdem
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Ibrahim Turan
- Department of Genetic and Bioengineering, Faculty of Engineering and Natural Sciences, Gumushane University, Gumushane, Turkey
| | - Ahmet Alver
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
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Turan I, Demir S, Yaman SO, Canbolat D, Mentese A, Aliyazicioglu Y. An Investigation of the Antiproliferative Effect of Rhododendron luteum Extract on Cervical Cancer (HeLa) Cells via Nrf2 Signaling Pathway. Nutr Cancer 2021; 74:1882-1893. [PMID: 34323135 DOI: 10.1080/01635581.2021.1955287] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The aim of the present study was to investigate the role of Rhododendron luteum extract (RLE) in the induction of Nrf2‑related oxidative stress and endoplasmic reticulum (ER) stress in human cervical cancer (HeLa) cells. The antiproliferative effect of RLE on HeLa and fibroblast cells was determined using the MTT assay. The effects of RLE on the cell cycle, apoptosis, and production of reactive oxygen species (ROS) in HeLa cells were evaluated using fluorescent probes. The mRNA expression levels of Nrf2 [and its targets glutamate-cysteine ligase catalytic subunit (GCLC), and glucose-6-phosphate dehydrogenase (G6PD)], and C/EBP homologous protein (CHOP, an ER stress marker were determined using reverse transcription‑quantitative polymerase chain reaction (RT-PCR). The results demonstrated that RLE exhibited a selective cytotoxic effect (2.9-fold) on HeLa cells compared to fibroblast cells. RLE arrested the cell cycle at the S phase, and induced apoptosis, ER stress, and ROS formation. In addition, RLE significantly suppressed the expression levels of Nrf2, GCLC and G6PD (0.65, 0.69, and 0.54-fold, respectively) and increased the expression of CHOP (4.48-fold) in HeLa cells at 72 h of treatment (p < 0.05). These results show that the antiproliferative effect of RLE occurs through the Nrf2 and ER stress pathways, and the results should now be supported by further in vivo studies.
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Affiliation(s)
- Ibrahim Turan
- Department of Biochemistry, Faculty of Pharmacy, University of Health Sciences, Ankara, Turkey.,Department of Genetic and Bioengineering, Faculty of Engineering and Natural Sciences, Gumushane University, Gumushane, Turkey
| | - Selim Demir
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Karadeniz Technical University, Trabzon, Turkey
| | - Serap Ozer Yaman
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Deniz Canbolat
- Department of Biotechnology, Institute of Science, Gumushane University, Gumushane, Turkey
| | - Ahmet Mentese
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Yuksel Aliyazicioglu
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, 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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Demir S, Kazaz IO, Aliyazicioglu Y, Kerimoglu G, Teoman AS, Yaman SO, Arslan A, Mentese A. Effect of ethyl pyruvate on oxidative state and endoplasmic reticulum stress in a rat model of testicular torsion. Biotech Histochem 2019; 95:317-322. [PMID: 31850805 DOI: 10.1080/10520295.2019.1695947] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [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: 12/22/2022] Open
Abstract
We investigated the effects of ethyl pyruvate (EP) on oxidative and endoplasmic reticulum (ER) stress due to experimental testicular ischemia-reperfusion (I-R). Eighteen rats were divided into a control group, a torsion-detorsion (T-D) group and an EP group. For pretreatment of the EP group, 50 mg/kg EP was given intraperitoneally (i.p.) 30 min before detorsion. Tissue 4-hydroxynonenal (4-HNE) and 78-kDa glucose-regulated protein (GRP78) levels were determined using enzyme-linked immunosorbent assay (ELISA) kits. Tissue total oxidant status (TOS) and total antioxidant status were determined using colorimetric methods. Histology of the tissues was evaluated using hematoxylin and eosin staining. In the T-D group, tissue 4-HNE, GRP78, TOS and oxidative stress index levels were significantly higher than for the control group. The increases were reduced significantly by EP pretreatment. Our findings suggest that EP can inhibit I-R induced testicular injury by suppressing oxidative and ER stress. EP may be a useful adjunctive treatment for surgical repair in humans.
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Affiliation(s)
- Selim Demir
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - Ilke Onur Kazaz
- Department of Urology, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - Yuksel Aliyazicioglu
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - Gokcen Kerimoglu
- Department of Histology and Embryology, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - Ahmet Serdar Teoman
- Department of Urology, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - Serap Ozer Yaman
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - Ayhan Arslan
- Department of Urology, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - Ahmet Mentese
- Program of Medical Laboratory Techniques, Vocational School of Health Sciences, Karadeniz Technical University, 61080 Trabzon, Turkey
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Demir S, Yaman SO, Sener SO, Ayazoglu Demir E, Aliyazicioglu R, Ozgen U, Mentese A, Deger O, Aliyazicioglu Y. Dorycnium pentaphyllum Extract Has Antiproliferative Effect on Human Cervix and Colon Cancer Cells. Nutr Cancer 2019; 72:504-512. [PMID: 31290695 DOI: 10.1080/01635581.2019.1636100] [Citation(s) in RCA: 2] [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: 10/26/2022]
Abstract
Although several studies have investigated the cytotoxic effects of different Fabaceae species, limited researches have been conducted on the cytotoxic effect of Dorycnium pentaphyllum. The aim of this study was to evaluate the phenolic characterization and the cytotoxic effect of D. pentaphyllum on human cervix (HeLa) and colon (WiDr) cancer cells and the possible mechanisms involved. Total phenolic content (TPC) and phenolic characterization of the extract were investigated using the Folin-Cioceltau method and RP-HPLC, respectively. The cytotoxic effect of the extract was evaluated using the MTT assay. The mechanism involved in the extract's cytotoxic effect was then evaluated in terms of apoptosis and the cell cycle using flow cytometry, while mitochondrial membrane potential (MMP) was investigated using the fluorometric method. The TPC value of the extract was 141.2 ± 0.8 mg gallic acid equivalent per g sample, and quercetin was detected as major phenolics. D. pentaphyllum extract exhibited a selective cytotoxic effect on HeLa and WiDr cells compared to normal fibroblast and colon cells, respectively. The extract induced cell cycle arrest at the S phase and apoptosis via reduced MMP in these cells. Further studies may be useful in developing a natural product based new generation pharmacological agent.
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Affiliation(s)
- Selim Demir
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Karadeniz Technical University, Trabzon, Turkiye
| | - Serap Ozer Yaman
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkiye
| | - Sila Ozlem Sener
- Department of Pharmacognosy, Faculty of Pharmacy, Karadeniz Technical University, Trabzon, Turkiye
| | - Elif Ayazoglu Demir
- Department of Chemistry, Faculty of Science, Karadeniz Technical University, Trabzon, Turkiye
| | - Rezzan Aliyazicioglu
- Department of Biochemistry, Faculty of Pharmacy, Karadeniz Technical University, Trabzon, Turkiye
| | - Ufuk Ozgen
- Department of Pharmacognosy, Faculty of Pharmacy, Karadeniz Technical University, Trabzon, Turkiye
| | - Ahmet Mentese
- Program of Medical Laboratory Techniques, Vocational School of Health Sciences, Karadeniz Technical, University, Trabzon, Turkiye
| | - Orhan Deger
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkiye
| | - Yuksel Aliyazicioglu
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkiye
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Kazaz IO, Demir S, Yulug E, Colak F, Bodur A, Yaman SO, Karaguzel E, Mentese A. N-acetylcysteine protects testicular tissue against ischemia/reperfusion injury via inhibiting endoplasmic reticulum stress and apoptosis. J Pediatr Urol 2019; 15:253.e1-253.e8. [PMID: 30890312 DOI: 10.1016/j.jpurol.2019.02.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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] [Received: 11/30/2018] [Accepted: 02/05/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND In animal models, endoplasmic reticulum (ER) stress has been reported to play a vital role in mediating ischemia/reperfusion (I/R) injury in certain organs, such as brain, liver, and intestine. However, there are a limited number of studies examining the relationship between ER stress and torsion and detorsion (T/D)-induced testicular injury. OBJECTIVE To investigate the effects of N-acetylcysteine (NAC) on ER-stress and apoptosis in an experimental testicular I/R injury model. DESIGN A non-blinded experimental study with three arms. Rats were divided into three groups: control group, T/D group, and NAC group. In the pretreatment of the NAC group, 20 mg/kg NAC was given intraperitoneally 30 min before detorsion. Tissue 4-hydroxynonenal (4-HNE), 78-kDa glucose-regulated protein (GRP78), and activating transcription factor 6 (ATF6) levels were determined using enzyme-linked immunosorbent assay. The apoptosis levels were evaluated using terminal deoxynucleotide transferase-mediated dUTP nick-end label assay. RESULTS In T/D group, tissue 4-HNE, GRP78, ATF6, and apoptotic index levels were significantly higher than control group. These increases were significantly reversed with NAC pretreatment. DISCUSSION There are some potential drugs that have been shown to reduce ER stress in the experimental ischemia model, and it is questioned that these drug candidates can be used as a therapeutic agent in the treatment of ischemic diseases in the near future. This study was not without limitations. First, the authors applied NAC only 20 mg/kg. In a future study, a dose-dependent assay should be performed to assess the likelihood of an additional testicular protective effect. One limitation of this research is also that in vivo studies cannot be extrapolated to possible effect in clinics. More experiments therefore need to be conducted to extrapolate the study findings to humans. CONCLUSION The study results showed that, after testicular torsion (TT), the ER stress-related apoptotic pathway plays a pivotal role in testicular injury. Further studies of other experimental models of TT may prove that NAC is a useful agent as an adjunctive treatment in surgical repair in human cases.
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Affiliation(s)
- I O Kazaz
- Department of Urology, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - S Demir
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Karadeniz Technical University, 61080 Trabzon, Turkey.
| | - E Yulug
- Department of Histology and Embryology, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - F Colak
- Department of Urology, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - A Bodur
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - S O Yaman
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - E Karaguzel
- Department of Urology, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - A Mentese
- Program of Medical Laboratory Techniques, Vocational School of Health Sciences, Karadeniz Technical University, 61080 Trabzon, Turkey
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Turan I, Demir S, Aliyazicioglu R, Kilinc K, Ozer Yaman S, Akbulut Cakiroglu K, Kanbolat S, Ayazoglu Demir E, Mentese A, Aliyazicioglu Y, Deger O. Dimethyl Sulfoxide Extract of Dianthus carmelitarum Induces S Phase Arrest and Apoptosis in Human Colon Cancer Cells. Nutr Cancer 2019; 71:1181-1188. [DOI: 10.1080/01635581.2019.1598563] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Ibrahim Turan
- Department of Genetic and Bioengineering, Faculty of Engineering and Natural Sciences, Gumushane University, Gumushane, Turkiye
| | - Selim Demir
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Karadeniz Technical University, Trabzon, Turkiye
| | - Rezzan Aliyazicioglu
- Department of Biochemistry, Faculty of Pharmacy, Karadeniz Technical University, Trabzon, Turkiye
| | - Kagan Kilinc
- Department of Genetic and Bioengineering, Faculty of Engineering and Natural Sciences, Gumushane University, Gumushane, Turkiye
| | - Serap Ozer Yaman
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkiye
| | - Kubra Akbulut Cakiroglu
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkiye
| | - Seyda Kanbolat
- Department of Biochemistry, Faculty of Pharmacy, Karadeniz Technical University, Trabzon, Turkiye
| | - Elif Ayazoglu Demir
- Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, Trabzon, Turkiye
| | - Ahmet Mentese
- Program of Medical Laboratory Techniques, Vocational School of Health Sciences, Karadeniz Technical, University, Trabzon, Turkiye
| | - Yuksel Aliyazicioglu
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkiye
| | - Orhan Deger
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkiye
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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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Topcu TO, Kavgaci H, Gunaldi M, Kocoglu H, Akyol M, Mentese A, Yaman SO, Orem A, Ozdemir F, Aydin F. The clinical importance of serum galectin-3 levels in breast cancer patients with and without metastasis. J Cancer Res Ther 2018; 14:S583-S586. [PMID: 30249872 DOI: 10.4103/0973-1482.176425] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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: 11/04/2022]
Abstract
Objective Studies have investigated expression status of galectin-3 (Gal-3), but very little is known about the importance of circulating Gal-3 in patients with breast cancer (BC). The purpose of the study was to investigate the clinical significance and potential diagnostic value of plasma Gal-3 levels in patients with BC. Materials and Methods Fifty-two patients with BC and 35 age-matched healthy controls were enrolled. Levels of Gal-3 were investigated in BC patients and healthy controls. Gal-3 levels were determined using ELISA method. Results Serum Gal-3 levels were significantly higher in BC patients than in controls (P = 0.002). Gal-3 levels did not significantly differ according to patients' statuses of lymph node involvement, hormone receptor, lymphovascular invasion, e-cadherin, menopausal, stage, serum hemostatic markers (prothrombin time, partial thromboplastin time, and international normalized ratio), platelet counts, mean platelet volume, lactate dehydrogenase, carcinoembryonic antigen, and carbohydrate antigen 15-3 values (P > 0.05 for all). A cut-off value of Gal-3 to predict BC was determined at ≥3.17 ng/ml with a sensitivity of 75.0%, a specificity of 65.71%, a positive and negative predictive values of 76.5 and 63.9%, respectively (area under the curve: 0.705 [95% confidence interval, 0.598-0.798], P = 0.0002). Conclusion Serum Gal-3 levels were significantly higher in BC patients and did not significantly differ according to clinical and tumoral characteristics of patients. Furthermore, there was no difference in Gal-3 levels between BC patients with and without metastatic disease. Serum Gal-3 levels can be used as an adjunct to other diagnostic or screening tests for BC regardless of clinical and tumoral characteristics of patients.
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Affiliation(s)
- Turkan Ozturk Topcu
- Department of Medical Oncology, School of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Halil Kavgaci
- Department of Medical Oncology, School of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Meral Gunaldi
- Department of Medical Oncology, Bakirkoy Dr. Sadi Konuk Education and Research Hospital, Istanbul, Turkey
| | - Hakan Kocoglu
- Department of Internal Medicine, Bakirkoy Dr. Sadi Konuk Education and Research Hospital, Istanbul, Turkey
| | - Murat Akyol
- Department of Medical Oncology, Manisa Public Hospital, Manisa, Turkey
| | - Ahmet Mentese
- Department of Biochemistry, School of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Serap Ozer Yaman
- Department of Biochemistry, School of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Asim Orem
- Department of Biochemistry, School of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Feyyaz Ozdemir
- Department of Medical Oncology, School of Medicine, Karadeniz Technical University, Trabzon, Turkey
| | - Fazil Aydin
- Department of Medical Oncology, School of Medicine, Karadeniz Technical University, Trabzon, Turkey
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Demir S, Turan I, Aliyazicioglu R, Yaman SO, Aliyazicioglu Y. Primula vulgaris extract induces cell cycle arrest and apoptosis in human cervix cancer cells. J Pharm Anal 2018; 8:307-311. [PMID: 30345144 PMCID: PMC6190528 DOI: 10.1016/j.jpha.2018.05.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 05/09/2018] [Accepted: 05/14/2018] [Indexed: 02/07/2023] Open
Abstract
Primula vulgaris belongs to the genus Primula, members of which are frequently used in folk medicine. Various studies have investigated the cytotoxic effect of different Primula species, but there have been limited studies on the cytotoxic effect of P. vulgaris. The aim of this study was to investigate the cytotoxic effects, and possible mechanisms involved, of P. vulgaris flower extract on human cervical cancer (HeLa) cells. The cytotoxic effect of the extract on HeLa cells was revealed using the MTT assay. Mechanisms involved in the extract's cytotoxic effect were then investigated in terms of apoptosis, mitochondrial membrane potential, and the cell cycle, using fluorometric methods. P. vulgaris flower extract exhibited selective cytotoxic effects against HeLa cells by arresting their cell cycle at the S phase, and inducing the number of apoptotic cells compared to normal fibroblast cells by reducing mitochondrial membrane potential in a concentration-dependent manner. This is the first study to reveal the antiproliferative effect of P. vulgaris flower extract. Further studies are now needed to identify the cytotoxic molecules in the extract and their mechanisms.
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Affiliation(s)
- Selim Demir
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Karadeniz Technical University, 61080 Trabzon, Turkiye
| | - Ibrahim Turan
- Department of Genetic and Bioengineering, Faculty of Engineering and Natural Sciences, Gumushane University, 29100 Gumushane, Turkiye
| | - Rezzan Aliyazicioglu
- Department of Biochemistry, Faculty of Pharmacy, Karadeniz Technical University, 61080 Trabzon, Turkiye
| | - Serap Ozer Yaman
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkiye
| | - Yuksel Aliyazicioglu
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkiye
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Abstract
PURPOSES The aim of this study was to determine the diagnostic significance of fibronectin type III domain containing protein 5 (FNDC5)/Irisin levels in the sera of patients with renal cell cancer. MATERIALS AND METHODS In the study, 48 individuals were evaluated. The patient group included 23 subjects diagnosed with renal tumor, and the control group of 25 healthy individuals. Patients diagnosed with renal tumor received surgical treatment consisting of radical or partial nephrectomy. Blood specimens were collected and serum FNDC5/ Irisin and carcinoembryonic antigen (CEA) levels were determined using enzyme-linked immunosorbent assay (ELISA). RESULTS FNDC5/irisin and CEA levels in renal cancer patients were significantly higher compared with the control group (p=0.0001, p=0.009, respectively). Also, FNDC5 levels was more sensitive and specific than CEA levels. The best cut-off points for FNDC5/ irisin were >105pg/mL and CEA were >2.67ng/mL for renal cancer. CONCLUSIONS FNDC5/Irisin may be used as a diagnostic biomarker for renal cancer.
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Affiliation(s)
- Diler Us Altay
- Department Chemistry and Chemical Processing Technology, Ulubey Vocational School, Laboratory Technology Program, Ordu, Turkey
| | - Esref Edip Keha
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University Trabzon, Turkey
| | - Ersagun Karagüzel
- Department of Urology, Faculty of Medicine, Karadeniz Technical University Trabzon, Turkey
| | - Ahmet Menteşe
- 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
| | - Ahmet Alver
- Department of Medical 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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Orem A, Arıca DA, Mentese A, Yaman SO, Ural ZK, Bahadır S. Platelet-endothelial molecule SCUBE1 levels in patients with Behcet's disease: A preliminary study. Clin Chim Acta 2017; 473:157-159. [PMID: 28842176 DOI: 10.1016/j.cca.2017.08.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 08/11/2017] [Accepted: 08/20/2017] [Indexed: 11/30/2022]
Affiliation(s)
- Asım Orem
- Department of Medical Biochemistry, Karadeniz Technical University, Faculty of Medicine, Trabzon, Turkey
| | - Deniz Aksu Arıca
- Department of Dermatology and Venereology, Karadeniz Technical University, Faculty of Medicine, Trabzon, Turkey
| | - Ahmet Mentese
- Program of Medical Laboratory Techniques, Karadeniz Technical University, Vocational School of Health Sciences, Trabzon, Turkey.
| | - Serap Ozer Yaman
- Department of Medical Biochemistry, Karadeniz Technical University, Faculty of Medicine, Trabzon, Turkey
| | - Zeynep Karaca Ural
- Department of Dermatology and Venereology, Karadeniz Technical University, Faculty of Medicine, Trabzon, Turkey
| | - Sevgi Bahadır
- Department of Dermatology and Venereology, Karadeniz Technical University, Faculty of Medicine, 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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Mentese A, Alver A, Demir S, Sumer A, Ozer Yaman S, Karkucak M, Aydin Capkin A, Us Altay D, Turan I. Carbonic anhydrase I and II autoantibodies in Behçet's disease. Acta Reumatol Port 2017; 42:26-31. [PMID: 28198796] [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: 06/06/2023]
Abstract
BACKGROUND Behçet's disease is a vasculitis, seen more frequently around the Mediterranean and the Far East, and evinces with oral and genital ulcerations, skin lesions and uveitis. Carbonic anhydrase (CA) is a metalloenzyme which is widely distributed in the living world, and it is essential for the regulation of acid-base balance. Anti-CA antibodies have been reported in many disorders, such as systemic lupus erythematosus, Sjögren's syndrome, rheumatoid arthritis, endometriosis, idiopathic chronic pancreatitis, type 1 diabetes and Graves' disease. The goal of this study was to investigate CA I and II autoantibodies in Behçet's disease (BD). METHODS 35 patients with BD and 29 healthy controls were included in the study and CA I and II autoantibody levels were investigated by ELISA. RESULTS The CA I and II autoantibody levels of BD group were significantly higher than the healthy group (p=0.013, p inf 0.0001, respectively). A cut-off value of 0.250 ABSU for anti-CA I was associated with 34 % sensitivity and 100 % specificity and a cut-off value of 0.171 ABSU for anti-CA II was associated with 54 % sensitivity and 100 % specificity for predicting BD. CONCLUSION The CA I and II autoantibody levels in patients with BD were found higher compared to control group and the results suggest that CA I and II autoantibodies may be involved in the pathogenesis of BD.
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Affiliation(s)
| | - Ahmet Alver
- Faculty of Medicine, Karadeniz Technical University
| | - Selim Demir
- Faculty of Health Sciences, Karadeniz Technical University
| | - Aysegul Sumer
- School of Health Services, Recep Tayyip Erdogan University
| | | | | | | | | | - Ibrahim Turan
- Faculty of Engineering and Natural Sciences, Gumushane University
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Us Altay D, Keha EE, Ozer Yaman S, Ince I, Alver A, Erdogan B, Canpolat S, Cobanoglu U, Mentese A. Investigation of the expression of irisin and some cachectic factors in mice with experimentally induced gastric cancer. QJM 2016; 109:785-790. [PMID: 27256459 DOI: 10.1093/qjmed/hcw074] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 04/29/2016] [Accepted: 05/05/2016] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND The purpose of this study was to determine whether irisin is secreted by gastric tumor cells experimentally induced in mice, and also if it has any effect on cancer cachexia. DESIGN AND METHODS 12 out of 60 BALB/c mice were used as a control group, while N-nitroso-N-methylurea (MNU) was administered orally to the remaining 48. After 150 days, the surviving mice were sacrificed by decapitation, blood and stomach, skeletal muscle, brown and white adipose tissue specimens were collected. Following histopathological evaluation of the stomach tissues, it was decided to create four groups, one control group and three consisting of mice administered MNU, no cancer, pre-cancer and cancer. Gene expression analyses of fibronectin type III domain containing protein 5 (FNDC5) and some cachexia-related proteins were performed in tissue samples, while levels of irisin, and various inflammatory and tumor markers together with cachectic factors were determined in serum samples. RESULTS The levels of inflammatory, tumor markers and cachectic factors in serum samples were significantly higher in the cancer group compared with the control group. No expression of FNDC5 or zinc-α-2 glycoprotein, a cachectic factor, was observed in gastric tissues from the control and MNU groups, whereas significantly increased FNDC5 expression was determined in the both white and brown adipose tissues from the cancer group. CONCLUSION Increased FNDC5 expression in white and brown adipose tissues may have a cachectic effect in mice with induced cancer. However, it is not possible to explain the mechanism of the relationship between irisin and gastric cancer development on the basis of the results of this study.
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Affiliation(s)
- Diler Us Altay
- From the Ulubey Vocational School, Chemistry and Chemical Processing Technology Department, Laboratory Technology Program, Ordu, Turkey
| | - E Edip Keha
- Department of Medical Biochemistry, Karadeniz Technical University, Faculty of Medicine, Trabzon, Turkey
| | - Serap Ozer Yaman
- Department of Medical Biochemistry, Karadeniz Technical University, Faculty of Medicine, Trabzon, Turkey
| | - Imran Ince
- Department of Medical Biochemistry, Karadeniz Technical University, Faculty of Medicine, Trabzon, Turkey
| | - Ahmet Alver
- Department of Medical Biochemistry, Karadeniz Technical University, Faculty of Medicine, Trabzon, Turkey
| | | | - Sinan Canpolat
- Department of Physiology, Fırat University, Faculty of Medicine, Elazıg, Turkey
| | - Umit Cobanoglu
- Department of Pathology, Karadeniz Technical University, Faculty of Medicine, Trabzon, Turkey
| | - Ahmet Mentese
- Department of Medical Biochemistry, Karadeniz Technical University, Faculty of Medicine, Trabzon, Turkey
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Demir S, Turan I, Aliyazicioglu Y, Kilinc K, Yaman SO, Ayazoglu Demir E, Arslan A, Mentese A, Deger O. Morus RubraExtract Induces Cell Cycle Arrest and Apoptosis in Human Colon Cancer Cells Through Endoplasmic Reticulum Stress and Telomerase. Nutr Cancer 2016; 69:74-83. [DOI: 10.1080/01635581.2017.1247887] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Turan I, Demir S, Kilinc K, Burnaz NA, Yaman SO, Akbulut K, Mentese A, Aliyazicioglu Y, Deger O. Antiproliferative and apoptotic effect of Morus nigra extract on human prostate cancer cells. Saudi Pharm J 2016; 25:241-248. [PMID: 28344475 PMCID: PMC5355563 DOI: 10.1016/j.jsps.2016.06.002] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 06/12/2016] [Indexed: 01/16/2023] Open
Abstract
Background: Morus nigra L. belongs to the family Moraceae and is frequently used in traditional medicine. Numerous studies have investigated the antiproliferative effects of various extracts of different Morus species, but studies involving the in vitro cytotoxic effect of M. nigra extract are very limited. The purpose of this study was to evaluate the phenolic composition and antioxidant activity of dimethyl sulfoxide extract of M. nigra (DEM) and to investigate, for the first time, the probable cytotoxic effect in human prostate adenocarcinoma (PC-3) cells together with the mechanism involved. Methods: Total polyphenolic contents (TPC), ferric reducing antioxidant power (FRAP) and phenolic compounds of DEM were evaluated using spectrophotometric procedures and HPLC. The cytotoxic effect of DEM on PC-3 cells was revealed using the MTT assay. Mechanisms involved in the cytotoxic effect of DEM on PC-3 cells were then investigated in terms of apoptosis, mitochondrial membrane potential and cell cycle using flow cytometry, while caspase activity was investigated using luminometric analysis. Results: TPC and FRAP values were 20.7 ± 0.3 mg gallic acid equivalents and 48.8 ± 1.6 mg trolox equivalents per g sample, respectively. Ascorbic acid and chlorogenic acid were the major phenolic compounds detected at HPLC analysis. DEM arrested the cell cycle of PC-3 cells at the G1 phase, induced apoptosis via increased caspase activity and reduced mitochondrial membrane potential. Conclusions: Our results indicate that M. nigra may be a novel candidate for the development of new natural product based therapeutic agents against prostate cancer.
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Affiliation(s)
- Ibrahim Turan
- Department of Genetic and Bioengineering, Faculty of Engineering and Natural Sciences, Gumushane University, 29100 Gumushane, Turkey
- Medicinal Plants, Traditional Medicine Practice and Research Center, Gumushane University, 29100 Gumushane, Turkey
| | - Selim Demir
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Karadeniz Technical University, 61080 Trabzon, Turkey
- Corresponding author. Fax: +90 462 325 28 21.
| | - Kagan Kilinc
- Department of Genetic and Bioengineering, Faculty of Engineering and Natural Sciences, Gumushane University, 29100 Gumushane, Turkey
| | - Nesibe Arslan Burnaz
- Department of Nutrition and Dietetics, School of Health Services, Gumushane University, 29100 Gumushane, Turkey
| | - Serap Ozer Yaman
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - Kubra Akbulut
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - Ahmet Mentese
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - Yuksel Aliyazicioglu
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - Orhan Deger
- Department of Medical Biochemistry, Faculty of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey
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Demir S, Aliyazicioglu Y, Turan I, Misir S, Mentese A, Yaman SO, Akbulut K, Kilinc K, Deger O. Antiproliferative and proapoptotic activity of Turkish propolis on human lung cancer cell line. Nutr Cancer 2015; 68:165-72. [PMID: 26700423 DOI: 10.1080/01635581.2016.1115096] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Cancer is a heterogeneous disease, two of whose characteristic features are uncontrollable cell proliferation and insufficient apoptosis. Various studies have investigated the antiproliferative effects of propolis, a natural bee product, from different countries, and its cytotoxic effects have been attributed to its polyphenol contents. The purpose of this study was to show the cytotoxic effects, and possible mechanisms involved, of ethanolic extract of Turkish propolis (EEP) on the human lung cancer (A549) cell line. Cytotoxic activity of EEP on A549 cells was revealed using the MTT assay. Mechanisms involved in the cytotoxic action of EEP on A549 cells were then investigated in terms of apoptosis, mitochondrial membrane potential and cell cycle using flow cytometry, endoplasmic reticulum stress using RT-PCR, and caspase activity using luminometric analysis. EEP exhibited selective toxicity against A549 cells compared to normal fibroblast cells. We determined that EEP arrested the cell cycle of A549 cells at the G1 phase, induced endoplasmic reticulum stress, caspase activity, and apoptosis and reduced mitochondrial membrane potential. These results indicate that Turkish propolis is capable of reducing cancer cell proliferation and may have a promising role to play in the development of new anticancer drugs in the future.
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Affiliation(s)
- Selim Demir
- a Department of Medical Biochemistry , Institute of Health Sciences, Karadeniz Technical University , Trabzon , Turkey
| | - Yuksel Aliyazicioglu
- b Department of Medical Biochemistry , Faculty of Medicine, Karadeniz Technical University , Trabzon , Turkey
| | - Ibrahim Turan
- c Department of Genetic and Bioengineering , Faculty of Engineering and Natural Sciences, Gumushane University, Gumushane, Turkey, and Medicinal Plants, Traditional Medicine Practice and Research Center, Gumushane University , Gumushane , Turkey
| | - Sema Misir
- d Department of Medical Biochemistry , Institute of Health Sciences, Karadeniz Technical University, Trabzon, Turkey and Department of Biochemistry, Faculty of Pharmacy, Cumhuriyet University , Sivas , Turkey
| | - Ahmet Mentese
- b Department of Medical Biochemistry , Faculty of Medicine, Karadeniz Technical University , Trabzon , Turkey
| | - Serap Ozer Yaman
- a Department of Medical Biochemistry , Institute of Health Sciences, Karadeniz Technical University , Trabzon , Turkey
| | - Kubra Akbulut
- a Department of Medical Biochemistry , Institute of Health Sciences, Karadeniz Technical University , Trabzon , Turkey
| | - Kagan Kilinc
- e Department of Genetic and Bioengineering , Faculty of Engineering and Natural Sciences, Gumushane University , Gumushane , Turkey
| | - Orhan Deger
- b Department of Medical Biochemistry , Faculty of Medicine, Karadeniz Technical University , Trabzon , Turkey
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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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