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Polat R, Çokluk E, Budak Ö, Tuncer FB. Effect of Propolis on Precocious Puberty in Female Rats. J Clin Res Pediatr Endocrinol 2022; 14:415-421. [PMID: 35770944 PMCID: PMC9724062 DOI: 10.4274/jcrpe.galenos.2022.2022-1-18] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 06/15/2022] [Indexed: 12/14/2022] Open
Abstract
Objective Nutrition and exposure to various chemicals, including environmental pollution, insecticides, and plant phytoestrogens (having oestrogen-like effects), are environmental factors that affect puberty onset. The aim of this study was to identify the effects of propolis, which has been reported to have oestrogenic effects, on precocious puberty and the reproductive system in prepubertal female rats (ovary, endometrium, breast). Methods Thirty-four 25-day-old, prepubertal, female Sprague-Dawley rats were included. Rats were randomly divided into the propolis (n=17) and control groups (n=17). The primary endpoint was the number of rats that developed vaginal opening, a sign of puberty, at 12-day follow-up. In addition, the effect of propolis on ovary, uterus and breast tissue was evaluated histologically. Results Vaginal patency occurred earlier (about 7.5 days sooner) in the propolis group and all animals in the propolis group had vaginal patency by day 12. The number of ovarian follicles (in all follicles), endometrial thickness, and mammary gland secretory gland area were significantly higher in the propolis group than in the control group (all p<0.001). In addition, Ki-67 activity in the endometrium, breast tissue and ovary was more intense in the propolis group compared to the control group (all p<0.001). Conclusion Propolis triggers precocious puberty in female rats, possibly by interacting with the oestrogen receptor. The mechanism of action of propolis should be considered before prescribing it. In addition, further studies are needed to explore the mechanism of action of propolis and to determine the component of propolis that triggers puberty.
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Affiliation(s)
- Recep Polat
- Sakarya University, Sakarya Training and Research Hospital, Clinic of Pediatric Endocrinology, Sakarya, Turkey
| | - Erdem Çokluk
- Sakarya University Faculty of Medicine, Department of Medical Biochemistry, Sakarya, Turkey
| | - Özcan Budak
- Sakarya University Faculty of Medicine, Department of Histology-Embryology, Sakarya, Turkey
| | - Fatıma Betül Tuncer
- Sakarya University, Sakarya Training and Research Hospital, Clinic of Medical Biochemistry, Sakarya, Turkey
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Bostanci MS, Budak Ö, Çakiroğlu H, Köse O, Erdoğan M, Yuvaci HU, Çokluk E. The Effectiveness of Granulocyte Colony-Stimulating Factor (G-CSF) Against Experimental Ischemia–Reperfusion Injury in Rat Ovaries and Its Effect on In Vitro Fertilization Outcomes. Reprod Sci 2022; 30:1660-1667. [PMID: 36414821 DOI: 10.1007/s43032-022-01132-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 11/14/2022] [Indexed: 11/24/2022]
Abstract
Local ischemic damage resulting from ovarian torsion is a common cause of decreased follicular activity and infertility. It was aimed to evaluate the effect of granulocyte colony-stimulating factor (G-CSF) protection on in vitro fertilization (IVF) results against experimental ischemic (I) and ischemic-reperfusion (I/R) injury in rat ovaries. The study consisted of 35 adult female Sprague-Dawley albino rats (sham, ischemia, I/R, I + G-CSF, and I/R + G-CSF) randomly assigned to 5 groups, each containing 7 rats. While bilateral adnexal torsion was applied to the ischemia groups for 3 h, detorsion was applied to the reperfusion groups. Intraperitoneal 100 IU/kg G-CSF was administered 30 min prior to ischemia (I + G-CSF) or reperfusion (I/R + G-CSF). After ovulation induction (intraperitoneal 150-300 IU/kg PMSG), the oocytes were collected and IVF was applied. Statistically significant differences were observed between the collected oocyte numbers in I and I + G-CSF, I/R, and I/R + G-CSF groups (P values were P = 0.001 for the I-I + G-SCF groups and P = 0.003 for I/R-IR + G-CSF, respectively). An increase in the number of MII oocytes obtained was observed in the I + G-CSF and I/R + G-CSF groups compared to the I and I/R groups. Grade 1 and grade 2 embryo numbers were statically different between the I/R and I/R + G-CSF groups (P values were P = 0.023 for grade 1 embryos and P = 0.045 for grade 2 embryos, respectively). G-CSF treatment was found to be effective in reducing I- and I/R-induced ovarian damage.
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Affiliation(s)
- Mehmet Sühha Bostanci
- Department of Obstetrics and Gynecology and Artificial Reproductive Techniques, Faculty of Medicine, Sakarya University, Sakarya, Turkey.
| | - Özcan Budak
- Department of Histology and Embryology and Artificial Reproductive Techniques, Faculty of Medicine, Sakarya University, Sakarya, Turkey
| | - Hüseyin Çakiroğlu
- Medical and Experimental Research Center, Faculty of Medicine, Sakarya University, Sakarya, Turkey
| | - Osman Köse
- Department of Urology, Faculty of Medicine, Sakarya University, Sakarya, Turkey
| | - Mehtap Erdoğan
- Department of Anatomy, Faculty of Medicine, Sakarya University, Sakarya, Turkey
| | - Hilal Uslu Yuvaci
- Department of Obstetrics and Gynecology, Faculty of Medicine, Sakarya University, Sakarya, Turkey
| | - Erdem Çokluk
- Department of Biochemistry, Faculty of Medicine, Sakarya University, Sakarya, Turkey
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Budak Ö, Bostancı MS, Köse O, Çakıroğlu H, Durmaz Ö, Çokluk E. The protective effect of cilostazol on experimental ischemia/reperfusion injury in rats ovaries on in vitro fertilization outcomes. Turk J Obstet Gynecol 2022; 19:236-241. [PMID: 36149305 PMCID: PMC9511933 DOI: 10.4274/tjod.galenos.2022.29599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Objective: Ovarian torsion decreases ovarian reserve because of ischemic and reperfusion damage it causes. In this study, we investigated the protective effect of cilostazol (CIL) on experimental ischemia (I) and ischemic-reperfusion (I/R) damage in rat ovaries with in vitro fertilization (IVF) results. Materials and Methods: Forty-eight adult female Sprague-Dawley albino rats were randomly assigned to 6 groups with 8 animals in each group: Sham (S), I, I/R, S + CIL, I + CIL and I/R + CIL. The I groups were subjected to bilateral adnexal torsion for 3 h, while the I/R and I/R + CIL groups received subsequent detorsion for 3 h. Twenty-two mg/kg of CIL was given via oral gavage 30 min before surgery on the I (I+ CIL) or reperfusion (I/R + CIL) groups. Oocytes were collected before the IVF procedure and after ovulation induction with 150-300 IU/kg pregnant mare serum gonadotropin. Results: The metaphase oocytes reached their highest value of 4.73±0.96 in the S+ CIL group and reached their lowest value of 0.51±0.55 in the I/R group. There were statistically significant differences in the number of second-day embryos among the I, I+ CIL, and I/R and I/R+ CIL groups (p=0.000). When the groups were compared in terms of Anti-Müllerian hormone change, the highest decrease was observed in the I and I/R groups. Conclusion: CIL pretreatment before surgery has a protective effect against I and I/R in rats with ovarian torsion.
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Yalçınkaya AS, Şekeroğlu MR, Huyut Z, Çokluk E, Özbek H, Öztürk G, Balahoroğlu R. The levels of nitrite, nitrate and lipid peroxidation in diabetic mouse brain: the effect of melatonin and pentoxifylline. Arch Physiol Biochem 2022; 128:795-801. [PMID: 32070146 DOI: 10.1080/13813455.2020.1727528] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 12/14/2022]
Abstract
OBJECTIVE This study investigated the relationship between diabetes (DM) and nitrite, nitrate and MDA levels and effect of melatonin and pentoxifylline. METHODS Sixty mice were randomly divided into four groups. Control: no action; Diabetes group (DM): after fasting-blood-glucose (FBG) was measured, 150 mg/kg alloxane was applied intraperitoneally three-times every other day; Diabetes + Melatonin (DM + MLT) and Diabetes + Pentoxifylline groups (DM + PTX): following the same procedures with DM, 10 mg/kg melatonin and 50 mg/kg pentoxifylline were administered subcutaneously six days, respectively. Following FBG analysis, brain tissues were taken under the anaesthesia. Nitrite, nitrate and MDA levels were measured. RESULTS In the all groups with alloxane, FBG were higher than in before application (p < .05). Also, FBG, nitrite, nitrate and MDA levels in the DM + MLT and DM + PTX groups were lower than in the DM (p < .05). CONCLUSIONS Nitrite and nitrate may be related to etiopathogenesis of DM, and pentoxifylline and especially melatonin relatively decrease nitrite, nitrate and lipid peroxidation.
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Affiliation(s)
- Ahmet S Yalçınkaya
- Department of Biochemistry, Toyosata Emergency Hospital, Sakarya, Turkey
| | | | - Zübeyir Huyut
- Department of Biochemistry, Medical Faculty, Van Yuzuncu Yıl University, Van, Turkey
| | - Erdem Çokluk
- Department of Biochemistry, Medical Faculty, Sakarya University, Sakarya, Turkey
| | - Hanefi Özbek
- Department of Pharmacology, Faculty of Medicine, Medipol University, Istanbul, Turkey
| | - Gürkan Öztürk
- Department of Physiology, Faculty of Medicine, Medipol University, Istanbul, Turkey
| | - Ragıp Balahoroğlu
- Department of Biochemistry, Konya Regional Research Hospital, Konya, Turkey
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Bostancı MS, Budak Ö, Çakiroğlu H, Gök K, Köse O, Çokluk E. The effect of protection of platelet-rich plasma against experimental ischemia/reperfusion injury in the rat ovary on in vitro fertilization outcomes. J Obstet Gynaecol Res 2022; 48:1390-1398. [PMID: 35322499 DOI: 10.1111/jog.15232] [Citation(s) in RCA: 1] [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: 09/15/2021] [Revised: 01/29/2022] [Accepted: 03/12/2022] [Indexed: 01/23/2023]
Abstract
OBJECTIVE Ovarian torsion is a common cause of local ischemic damage, reduced follicular activity and infertility. This study aimed to investigate how well platelet-rich plasma (PRP) protects against experimental ischemic (I) and ischemia-reperfusion (I/R) injury in rat ovaries and its effect on in vitro fertilization (IVF) outcomes. METHOD Fifty-six adult female Sprague-Dawley albino rats were randomly assigned to six groups of eight animals each: Sham, Ischemia, I/R, Sham + PRP, I + PRP, and I/R + PRP. The remaining eight animals were used to prepare the PRP. The ischemia groups were subjected to bilateral adnexal torsion for 3 h, while the I/R and I/R + PRP groups received subsequent detorsion for 3 h. Intraperitoneal (i.p.) PRP was administered 30 min prior to ischemia (I + PRP) or reperfusion (I/R + PRP). The ovaries were stimulated through an intraperitoneal injection of 150-300 internal units of IU/kg PMSG. After ovulation induction, oocytes were taken from the ovaries, and IVF was performed. RESULTS The number of MII oocytes reached the highest number with 4.63 ± 0.74 in the S group and had the lowest number with 0.50 ± 0.53 in the I/R group. There were statistically significant differences for the number of embryos obtained on the second day between the I and I + PRP groups and the I/R and I/R + PRP groups (p = 0.000). In comparing anti-Müllerian hormone 1 (AMH1) and AMH2 values within the group, the highest decrease was observed in the I and I/R groups. CONCLUSION PRP is effective in minimizing ovarian damage and preserving ovarian reserves following ovarian torsion.
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Affiliation(s)
- Mehmet Sühha Bostancı
- Department of Obstetrics and Gynecology and Artificial Reproductive Techniques, Faculty of Medicine, Sakarya University, Serdivan, Sakarya, Turkey
| | - Özcan Budak
- Department of Histology and Embryology and Artificial Reproductive Techniques, Faculty of Medicine, Sakarya University, Serdivan, Sakarya, Turkey
| | - Hüseyin Çakiroğlu
- Medical and Experimental Research Center, Faculty of Medicine, Sakarya University, Serdivan, Sakarya, Turkey
| | - Koray Gök
- Department of Obstetrics and Gynecology, Sakarya Research and Education Hospital, Serdivan, Sakarya, Turkey
| | - Osman Köse
- Department of Obstetrics and Gynecology Faculty of Medicine, Sakarya University, Serdivan, Sakarya, Turkey
| | - Erdem Çokluk
- Department of Biochemistry, Faculty of Medicine, Sakarya University, Serdivan, Sakarya, Turkey
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Çokluk E, Doğanay S, Ramazan Şekeroğlu M, Betül Tuncer F, Çakıroğlu H, Boz M. Investigation of the effect of melatonin administration on inflammatory mediators; MMP-2, TGF-β and VEGF levels in rats with sepsis. Int J Clin Pract 2021; 75:e14832. [PMID: 34510666 DOI: 10.1111/ijcp.14832] [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] [Received: 10/29/2020] [Revised: 09/07/2021] [Accepted: 09/09/2021] [Indexed: 01/04/2023] Open
Abstract
AIMS Sepsis causes life-threatening tissue and organ dysfunctions caused by endogenous mediators in response to infection. Melatonin is a powerful endogenous anti-inflammatory agent and effective in reducing cellular damage. This study aimed to evaluate the changes in serum and liver tissue levels of VEGF, TGF-β and MMP-2 in melatonin-treated septic rats. MATERIALS AND METHODS Twenty-one Wistar-albino male rats were included in this study. Rats were randomly divided into three groups. Group 1 is sham-operated control (C) group, Group 2 is caecal ligation and puncture (CLP) group and Group 3 is melatonin-treated (10 mg/kg) (M-CLP) group. Serum and tissue samples were analysed. All procedures were carried out according to the ethical rules specified in Helsinki Declaration. RESULTS Sera MMP-2 levels were found higher than tissue MMP-2 levels in C and CLP (respectively, P = .048, P = .01). In CLP and M-CLP, serum TGF-β levels were higher than tissue TGF-β levels(respectively, P = .05, P = .01). Serum VEGF levels in CLP were found to be significantly higher than both C and M-CLP(P < .01). CONCLUSION MMP-2 levels may have increased because of the prevention of oxidative damage in sepsis, and this may increase the anti-inflammatory effect. Melatonin treatment may have a therapeutic effect against sepsis since it prevents the increase in serum VEGF level. A powerful endogenous antioxidant, may be a promising therapeutic agent on the mortality and morbidity of the disease, because of its lowering effect on serum VEGF, which is a poor prognostic factor in sepsis.
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Affiliation(s)
- Erdem Çokluk
- Department of Biochemistry, Medical Faculty, Sakarya University, Sakarya, Turkey
| | - Songül Doğanay
- Department of Physiology, Medical Faculty, Sakarya University, Sakarya, Turkey
| | | | - Fatıma Betül Tuncer
- Department of Biochemistry, Medical Faculty, Sakarya University, Sakarya, Turkey
| | - Hüseyin Çakıroğlu
- Experimental Medicine Research and Application Center, Sakarya University, Sakarya, Turkey
| | - Meltem Boz
- Department of Biochemistry, Medical Faculty, Sakarya University, Sakarya, Turkey
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Kaya T, Yaylacı S, Nalbant A, Yıldırım İ, Kocayiğit H, Çokluk E, Şekeroğlu MR, Köroğlu M, Güçlü E. Serum calprotectin as a novel biomarker for severity of COVID-19 disease. Ir J Med Sci 2021; 191:59-64. [PMID: 33641087 PMCID: PMC7914045 DOI: 10.1007/s11845-021-02565-8] [Citation(s) in RCA: 8] [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: 12/26/2020] [Accepted: 02/17/2021] [Indexed: 12/16/2022]
Abstract
Background Some biomarkers have been reported to be related to the prognosis of the coronavirus disease 2019 (COVID-19). There are sparse data regarding the prognostic value of serum calprotectin in COVID-19 patients. Aims This study aimed to investigate the relationship between serum calprotectin level and clinical severity of COVID-19 disease in hospitalized patients. Methods This retrospective cross-sectional cohort study included 80 consecutive hospitalized patients with confirmed diagnosis of COVID-19. The study population was divided into two groups as patients hospitalized in the intensive care unit (ICU) and patients hospitalized but not in the ICU. The serum calprotectin levels, other laboratory, and clinical parameters were compared between groups. Results The mean age of the patients was 66.5 ± 15.7 years. Of the patients, 42 were in the ICU and 38 were not. Serum calprotectin level and acute-phase reactants such as C-reactive protein, procalcitonin, ferritin, fibrinogen, and white blood cell were significantly higher in ICU patients than in non-ICU patients. ROC curve analysis identified that serum calprotectin level was a predictor for ICU requirement with an area under the curve of 0.641 (p = 0.031). Logistic regression analysis revealed that serum calprotectin was a significant determinant for whether or not patient required the ICU. Conclusions These findings demonstrate that serum calprotectin level seems to be a useful biomarker that can predict the severity of COVID-19 disease. Serum calprotectin is a significant predictor of ICU requirement in patients with COVID-19.
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Affiliation(s)
- Tezcan Kaya
- Department of Internal Medicine, Faculty of Medicine, Sakarya University, Sakarya, Turkey.
| | - Selçuk Yaylacı
- Department of Internal Medicine, Faculty of Medicine, Sakarya University, Sakarya, Turkey
| | - Ahmet Nalbant
- Department of Internal Medicine, Faculty of Medicine, Sakarya University, Sakarya, Turkey
| | | | - Havva Kocayiğit
- Department of Anesthesiology, Faculty of Medicine, Sakarya University, Sakarya, Turkey
| | - Erdem Çokluk
- Department of Biochemistry, Medical Faculty, Sakarya University, Sakarya, Turkey
| | | | - Mehmet Köroğlu
- Department of Microbiology, Faculty of Medicine, Sakarya University, Sakarya, Turkey
| | - Ertuğrul Güçlü
- Department of Infectious Diseases, Faculty of Medicine, Sakarya University, Sakarya, Turkey
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Varım C, Demirci T, Cengiz H, Hacıbekiroğlu İ, Tuncer FB, Çokluk E, Toptan H, Karabay O, Yıldırım İ. Relationship between serum osteopontin levels and the severity of COVID-19 infection. Wien Klin Wochenschr 2020; 133:298-302. [PMID: 33369698 PMCID: PMC7768087 DOI: 10.1007/s00508-020-01789-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 10/05/2020] [Accepted: 11/26/2020] [Indexed: 12/23/2022]
Abstract
Background Coronavirus disease 2019 (COVID-19) is an acute inflammatory respiratory disease. Osteopontin (OPN) is a glycoprotein expressed in various cell types, such as bone, immune, smooth muscle, epithelial and endothelial cells. It also acts as a regulator of immune response. The aim of the present study was to reveal the place of serum osteopontin levels in predicting severity among patients with COVID-19. Methods This study included 84 patients, 43 female and 45 male. Patients were divided into 2 groups, group 1 non-severe group (n: 48), group 2 severe (n: 40). Demographic data, neutrophil, lymphocyte, platelet, white blood cell counts, albumin, procalcitonin, C‑reactive protein (CRP) and OPN levels were recorded. The OPN levels and these inflammatory parameters of the two groups were compared. Results There were no significant differences in terms of gender (female/male 25/23 vs. 18/22) and platelet count (178 K/μL vs. 191 K/μL) between the groups (p > 0.05). Ages (57.7 ± 17.0 years vs. 71.4 ± 12.8 years), procalcitonin (0.07 vs. 0.24 ng/mL), CRP (17 vs 158 mg/l), neutrophil count (3.7 vs 5.64 K/μL), WBC counts (5.38 vs 7.85 K/μL) and number of deaths (0 vs 26) (p < 0.001). The OPN levels (98.5 vs 13.75 ng/mL, p = 0.002) were found to be statistically higher, in group 2 than group 1. Conclusion The present study showed that OPN can be used to predict the severity in patients with COVID-19.
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Affiliation(s)
- Ceyhun Varım
- Department of Internal Medicine, Sakarya University Medicine Faculty, Sakarya, Turkey.
| | - Taner Demirci
- Department of Internal Medicine, Division of Endocrinology, Sakarya University Medicine Faculty, Sakarya, Turkey
| | - Hasret Cengiz
- Department of Endocrinology, Sakarya University Medicine Faculty, Sakarya, Turkey
| | - İlhan Hacıbekiroğlu
- Department of Medical Oncology, Sakarya University Medicine Faculty, Sakarya, Turkey
| | - Fatima Betul Tuncer
- Department of Clinical Microbiology, Sakarya University Medicine Faculty, Sakarya, Turkey
| | - Erdem Çokluk
- Department of Medical Biochemistry, Sakarya University Medicine Faculty, Sakarya, Turkey
| | - Hande Toptan
- Department of Clinical Microbiology, Sakarya University Medicine Faculty, Sakarya, Turkey
| | - Oguz Karabay
- Department of İnfection Diseases and Clinical Microbiology, Sakarya University Medicine Faculty, Sakarya, Turkey
| | - İlhan Yıldırım
- Department of Internal Medicine, Sakarya University Medicine Faculty, Sakarya, Turkey
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Alp HH, Akbay Hİ, Çokluk E, Huyut Z, Keskin S, Şekeroğlu MR. Within-subject and between-subject biological variation of first morning void urine amino acids in 12 healthy subjects. Clin Chem Lab Med 2020; 58:1901-1909. [PMID: 32324156 DOI: 10.1515/cclm-2020-0249] [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: 11/12/2019] [Accepted: 03/27/2020] [Indexed: 11/15/2022]
Abstract
Background Urine amino acid analysis is used for the assessment of various diseases. The aim of this study was to estimate the valid biological variation (BV) components (within- and between-subjects) required for the safe clinical application of free urine amino acids. Methods First morning void urine samples were taken from 12 healthy subjects (five females, seven males) once a week for 10 consecutive weeks, and amino acid analysis was performed using an Agilent 6470 triple quadrupole tandem mass spectrometer instrument. The obtained data were subjected to normality, outlier and variance homogeneity analyses prior to coefficient of variation (CV) analysis. Within- and between-subject BV values (CVI and CVG) of 39 amino acids were determined for all subjects. In addition, the index of individuality (II), reference change value (RCV), imprecision, bias and total error were estimated using BV data obtained from our study. Results The CVI values ranged from 8.9 (histidine) to 36.8% (trans-4-hydroxyprolin), while the CVG values ranged from 25.0 (1-methyl-L-histidine) to 63.3% (phenylalanine). The II value of most amino acids was less than 0.6 and ranged between 0.21 and 0.88. The imprecision, bias and total error ranged between 4.45 and 16.6, between 7.69 and 16.6, and between 18.4 and 43.2, respectively. Conclusions This study, designed according to a rigorous protocol, has the feature of being the first to give information about BV data of urine amino acids. We believe that the reference intervals have a limitation in the evaluation of consecutive results from an individual, so the use of RCV would be more appropriate.
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Affiliation(s)
- Hamit Hakan Alp
- Van Yuzuncu Yil University, Medical Faculty, Department of Biochemistry, Van, Turkey
| | - Halil İbrahim Akbay
- Van Yuzuncu Yil University, Medical Faculty, Department of Biochemistry, Van, Turkey
| | - Erdem Çokluk
- Sakarya University Medical Faculty, Department of Biochemistry, Sakarya, Turkey
| | - Zubeyir Huyut
- Van Yuzuncu Yil University, Medical Faculty, Department of Biochemistry, Van, Turkey
| | - Sıddık Keskin
- Van Yuzuncu Yil University, Medical Faculty, Department of Biostatistics, Van, Turkey
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Yılmaz E, Şekeroğlu MR, Yılmaz E, Çokluk E. Evaluation of plasma agmatine level and its metabolic pathway in patients with bipolar disorder during manic episode and remission period. Int J Psychiatry Clin Pract 2019; 23:128-133. [PMID: 31081413 DOI: 10.1080/13651501.2019.1569237] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Objectives: Agmatine is a cationic amine resulting from the decarboxylation of l-arginine. Agmatine has neuroprotective, anti-inflammatory, anti-stress, and anti-depressant properties. In this study, plasma agmatine, arginine decarboxylase, and agmatinase levels were measured during manic episode and remission period in patients with bipolar disorder. Methods: Thirty healthy volunteers and 30 patients who meet Bipolar Disorder Manic Episode diagnostic criteria were included in the study. Additionally, the changes in the patient group between manic episode and remission period were examined. We evaluated the relationship between levels of l-arginine and arginine decarboxylase in the agmatine synthesis pathway, and level of agmatinase that degrades agmatine. Results: Levels of agmatine and l-arginine were significantly increased than control group during manic episode (p < .01). All parameters were increased during manic episode compared to remission period (p < .05). Agmatinase was significantly decreased both during manic episode (p < .01) and remission period (p < .05) in comparison to the control group. Arginine decarboxylase levels did not show a significant difference between the groups (p > .05). Conclusions: This study indicate that there may be a relationship between bipolar disorder and agmatine and its metabolic pathway. Nonetheless, we believe more comprehensive studies are needed in order to reveal the role of agmatine in etiology of bipolar disorder. Key points Agmantine, agmatinase, l-arginine and arginine decarboxylase levels in BD have not been explored before. Various neuro-chemical mechanisms act to increase agmatine in BD; however, agmatine could have elevated to compensate agmatine deficit prior to the manifestation of the disease as in schizophrenia. Elevated agmatine degradation resulting from excess expression of agmatinase which is suggested to be effective in pathogenesis of mood disorders was compensated by this way. Elevated agmatine may be one of the causes which play a role in mania development. Elevated agmatine levels are also suggested to trigger psychosis and be related with the etiology of manic episode and lead to BD.
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Affiliation(s)
- Emine Yılmaz
- a Department of Biochemistry, Faculty of Medicine , Van Yuzuncu Yıl University , Van , Turkey
| | - M Ramazan Şekeroğlu
- b Department of Biochemistry, Faculty of Medicine , Sakarya University , Sakarya , Turkey
| | - Ekrem Yılmaz
- c Department of Psychiatry , Health Science University Van Training and Research Hospital , Van , Turkey
| | - Erdem Çokluk
- a Department of Biochemistry, Faculty of Medicine , Van Yuzuncu Yıl University , Van , Turkey
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Andıç E, Karaman E, Kolusarı A, Çokluk E. Association of cord blood ischemia-modified albumin level with abnormal foetal Doppler parameters in intrauterine growth-restricted foetuses. J Matern Fetal Neonatal Med 2019; 34:1-6. [PMID: 30691329 DOI: 10.1080/14767058.2019.1569623] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Objective: To investigate cord blood ischemia-modified albumin (IMA) levels in pregnancies with intrauterine growth restriction (IUGR) and to determine its association with abnormal fetal Doppler findings.Methods: Umbilical cord IMA levels were assessed in 34 pregnant women with IUGR and 32 pregnancies with normal fetal development. Associations of IMA with abnormal umbilical artery Doppler findings, preeclampsia, and oligohydramnios were investigated. IMA was measured using a colorimetric test based on a decrease in cobalt binding.Results: No significant between group differences in maternal age, body mass index, gravida, and parity were identified. The mean gestational age at delivery was earlier in the IUGR group than in the control group (35.7 ± 3.2 versus 38.4 ± 1.2, respectively). The mean cord blood IMA values for the IUGR group were significantly increased compared to those in the control group (0.565 ± 0.22 versus 0.250 ± 0.12, respectively, p = .001). There was a significant positive correlation between umbilical artery pulsatility index and IMA levels in the IUGR group. Patients with preeclampsia, oligohydramnios, and abnormal nonstress test results in the IUGR group had significantly higher IMA levels. Patients with systolic to diastolic ratios >3 and pulsatility index (PI) above the 95th percentile in the IUGR group had significantly higher cord blood IMA levels (p = .001 and p = .007, respectively).Conclusions: Cord blood IMA values may be a useful marker for perinatal asphyxia. Abnormal Doppler findings are associated with increased IMA levels in complicated pregnancies with IUGR.
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Affiliation(s)
- Esra Andıç
- Department of Obstetric and Gynecology, Faculty of Medicine, Yuzuncu Yil University, Van, Turkey
| | - Erbil Karaman
- Department of Obstetric and Gynecology, Faculty of Medicine, Yuzuncu Yil University, Van, Turkey
| | - Ali Kolusarı
- Department of Obstetric and Gynecology, Faculty of Medicine, Yuzuncu Yil University, Van, Turkey
| | - Erdem Çokluk
- Department of Biochemistry, Faculty of Medicine, Yuzuncu Yil University, Van, Turkey
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Huyut Z, Şekeroğlu MR, Alp HH, Balahoroğlu R, Çokluk E. Actions of resveratrol and serotonin added to stored bloods on lipid peroxidation and oxidative DNA damage. ACTA ACUST UNITED AC 2018. [DOI: 10.5505/ejm.2018.94834] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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13
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Şekeroğlu MR, Huyut Z, Çokluk E, Özbek H, Alp HH. The susceptibility to autoxidation of erythrocytes in diabetic mice: Effects of melatonin and pentoxifylline. J Biochem Mol Toxicol 2017; 31. [PMID: 29077241 DOI: 10.1002/jbt.21976] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Accepted: 08/01/2017] [Indexed: 11/06/2022]
Abstract
Oxidative stress had a great importance in development of complications in diabetes. We investigated effects of melatonin and pentoxifylline in diabetic mice. Swiss albino mice (n = 40) were divided into four groups: alloxan-induced diabetes mellitus (DM), alloxan-induced diabetes with melatonin supplementation (DM + MLT), alloxan-induced diabetes with pentoxifylline supplementation (DM + PTX), and control. Glutathione-peroxidase (GSH-Px) activity, malondialdehyde (MDA) and reduced glutathione (GSH) levels, and susceptibility to oxidation of erythrocytes were measured. MDA levels were higher than control in the DM and DM + MLT. The DM had more MDA level than the DM + MLT and DM + PTX (P < 0.001). After in vitro oxidation, MDA levels of all groups were found higher than the control. However, they were significantly lower than the DM in DM + PTX and DM + MLT (P < 0.001). Although GSH levels of the DM and DM + PTX were less than the control, GSH-Px activity of the DM was lower than the control and DM + PTX (P < 0.05). We suggest that there is increased oxidative stress and compromised antioxidant status of erythrocytes in diabetes; however, it can be effectively prevented by melatonin or pentoxifylline supplementation.
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Affiliation(s)
| | - Zübeyir Huyut
- Department of Biochemistry, Medical Faculty, Yuzuncu Yıl University, Van, Turkey
| | - Erdem Çokluk
- Department of Biochemistry, Medical Faculty, Yuzuncu Yıl University, Van, Turkey
| | - Hanefi Özbek
- Department of Pharmacology, Medical Faculty, Medipol University, İstanbul, Turkey
| | - Hamit Hakan Alp
- Department of Biochemistry, Medical Faculty, Yuzuncu Yıl University, Van, Turkey
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14
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Bala KA, Doğan M, Mutluer T, Kaba S, Aslan O, Balahoroğlu R, Çokluk E, Üstyol L, Kocaman S. Plasma amino acid profile in autism spectrum disorder (ASD). Eur Rev Med Pharmacol Sci 2016; 20:923-929. [PMID: 27010152] [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: 06/05/2023]
Abstract
OBJECTIVE In our study, we aimed to reveal pathophysiologic mechanisms in ASD by comparing plasma amino acid levels between patients and healthy controls while considering vitamin B12 and D levels. PATIENTS AND METHODS The study included 21 patients aged 2-18 years-old who were followed with a diagnosis autism spectrum disorder (ASD) and 21 age and sex-matched healthy children from our outpatient clinic as control group. RESULTS The study included 42 children and adolescents aged 2-18 years-old (19 girls and 23 boys). There were no significant differences in terms of body weight and height between the groups. We found significant differences in levels of ammonium, phosphoethanolamine, histidine, homocysteine, carnosine, methionine, cystathionine, cystine, threonine, 3-methyl histidine and phenylalanine/tyrosine ratio between patient and control groups. Both vitamin B12 and D were significantly lower in the ASD group compared to controls. In the variance analysis with vitamin B12 and D as covariates, significant differences persisted for only phosphoethanolamine (p=0.04), cystathionine (p<0.001), cystine (p=0.006) and threonine (p=0.02). CONCLUSIONS Further studies are needed on the amino acids that show variations in children with ASD in order to reveal their role in the etiology and therapeutic use in ASD.
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Affiliation(s)
- K A Bala
- Department of Pediatrics and Division of Pediatric Endocrinology; Medical School, Yüzüncü Yil University, Van, Turkey.
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