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Gul MA, Tozcu D, Tekcan A, Capraz M, Demir HD. Serum adiponectin and peroxisome proliferator-activated receptors-γ levels in obese patients with and without prediabetes. Rev Assoc Med Bras (1992) 2024; 70:e20231000. [PMID: 38655997 PMCID: PMC11045203 DOI: 10.1590/1806-9282.20231000] [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] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 11/03/2023] [Indexed: 04/26/2024]
Abstract
OBJECTIVE Obesity is an increasingly prevalent global health problem, which is generally caused by the increase in body fat mass above normal and observed in all societies. If the blood glucose level is higher than normal but not high enough to diagnose diabetes, this condition is defined as prediabetes. Adiponectin increases fatty acid oxidation and insulin sensitivity and is closely associated with obesity. One of the nuclear receptor superfamily member peroxisome proliferator-activated receptors is shown to have an important role in various metabolic reactions. This study aimed to investigate the serum levels of adiponectin and peroxisome proliferator-activated receptors-gamma parameters, which are closely related to adipose tissue, energy metabolism, and insulin sensitivity, in obese patients with and without prediabetes. METHODS For this purpose, 52 obese patients with prediabetes, 48 obese patients with non-prediabetes, and 76 healthy individuals were included in this study. Serum adiponectin and peroxisome proliferator-activated receptors-γ levels were analyzed by ELISA. RESULTS Serum adiponectin levels were significantly higher in obese patients with prediabetes (18.15±15.99) compared with the control group (15.17±15.67; p=0.42). No significant difference was observed in both adiponectin and peroxisome proliferator-activated receptors-γ levels in the obese patients with the non-prediabetes group compared with the control group. However, no significant difference was observed in the obese patients with prediabetes group and obese patients with non-prediabetes group. CONCLUSION Our results suggest that adiponectin may serve as an indicator of prediabetes. This implies that examining adiponectin levels in individuals diagnosed with prediabetes may enhance our understanding of the metabolic processes closely linked to prediabetes and related conditions.
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Affiliation(s)
- Mehmet Ali Gul
- Amasya University, Faculty of Medicine, Department of Medical
Biochemistry – Amasya, Turkey
| | - Duygu Tozcu
- Amasya University, Faculty of Medicine, Department of Physiology
– Amasya, Turkey
| | - Akın Tekcan
- Amasya University, Faculty of Medicine, Department of Medical
Biology – Amasya, Turkey
| | - Mustafa Capraz
- Amasya University, Faculty of Medicine, Department of Internal
Diseases – Amasya, Turkey
| | - Hatice Dortok Demir
- Amasya University, Faculty of Medicine, Department of Medical
Biochemistry – Amasya, Turkey
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Tekcan A, Cihangiroglu M, Capraz M, Capraz A, Yigit S, Nursal AF, Menekse E, Durmaz ZH, Dortok Demir H, Ozcelik B. Association of ACE ID, MTHFR C677T, and MIF-173GC variants with the clinical course of COVID-19 patients. Nucleosides Nucleotides Nucleic Acids 2023; 42:782-796. [PMID: 36973934 DOI: 10.1080/15257770.2023.2194341] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/15/2023] [Accepted: 03/15/2023] [Indexed: 03/29/2023]
Abstract
The course of coronavirus disease-2019 (COVID-19) differs from person to person. The relationship between the genetic variations of the host and the course of COVID-19 has been a matter of interest. In this study, we investigated whether Angiotensin-Converting Enzyme (ACE) ID, Methylenetetrahydrofolate Reductase (MTHFR) C677T, and Macrophage Migration Inhibitory Factor (MIF)-173GC variants are risk factors for the clinical course of COVID-19 disease in Turkish patients. One hundred COVID-19 patients were included in the study. The diagnosis of COVID-19 was made using Reverse Transcription Polymerase Chain Reaction (RT-PCR) and Chest Computed Tomography (CT). The patients were evaluated in 3 groups: intensive care, service, and outpatient treatment. ACE ID, MTHFR C677T, and MIF-173GC variants were genotyped by PCR-Restriction Fragment Length Polymorphism (RFLP) methods. When the genotype distribution between the groups was examined, it was found that the frequency of the ACE DD genotype and the D allele was higher in the intensive care group compared to the hospitalized and outpatient groups. MTHFR C677T CT genotype T allele and MIF-173GC, CC genotype C allele were more prevalent in the intensive care group compared to other groups. Patients with PCR-positive results had a higher MTHFR C677T C/C genotype and C allele. In CT-positive patients, the MTHFR C677T CT genotype and the MIF-173GC, G allele were more common. It is predicted that genetic predisposition may contribute to COVID-19 morbidity and mortality. Our results show that ACE ID, MTHFR C677T, and MIF-173GC variants affect the course of COVID-19 disease in the Turkish population.
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Affiliation(s)
- Akın Tekcan
- Faculty of Medicine, Department of Medical Biology, Amasya University, Amasya, Turkey
| | - Mustafa Cihangiroglu
- Faculty of Medicine, Department of Infectious Diseases, Amasya University, Amasya, Turkey
| | - Mustafa Capraz
- Faculty of Medicine, Department of Internal Medicine, Amasya University, Amasya, Turkey
| | - Aylin Capraz
- Faculty of Medicine, Department of Chest Diseases, Amasya University, Amasya, Turkey
| | - Serbülent Yigit
- Faculty of Veterinary Medicine, Department of Veterinary Genetics, Ondokuz Mayıs University, Samsun, Turkey
| | - Ayse Feyda Nursal
- Faculty of Medicine, Department of Medical Genetics, Hitit University, Corum, Turkey
| | - Elif Menekse
- Sabuncuoglu Serefeddin Education and Research Hospital, Biochemistry Clinic, Amasya, Turkey
| | - Zeynep Hülya Durmaz
- Sabuncuoglu Serefeddin Education and Research Hospital, Biochemistry Clinic, Amasya, Turkey
| | - Hatice Dortok Demir
- Faculty of Medicine, Department of Biochemistry, Amasya University, Amasya, Turkey
| | - Burak Ozcelik
- Sabuncuoglu Serefeddin Education and Research Hospital, Amasya, Turkey
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Tufek M, Nalcacioglu P, Capraz M, Varol K, Kaya AT, Aydın N, Kara C. The impact of obesity on ocular hemodynamics and choroidal thickness. Ther Adv Ophthalmol 2023; 15:25158414231180985. [PMID: 37441618 PMCID: PMC10333989 DOI: 10.1177/25158414231180985] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 05/22/2023] [Indexed: 07/15/2023] Open
Abstract
Background Obesity affects microvascular structures. The effect of obesity on the ocular vascular system can be evaluated by changes in the choroidal thickness (CT) and retrobulbar blood flow (RBF). Objectives To evaluate the CT and RBF parameters in obese patients with various body mass index (BMI) values and compare these parameters with normal weight, healthy subjects. Design A prospective study. Methods The study included 102 eyes of 102 female patients. Patients were divided into three groups according to BMI as group 1 with a BMI of 18.5-24.99 (n = 32), normal weight group; group 2 with a BMI of 30-34.99 (n = 35), as obese class I; and group 3 with a BMI of 35-39.99 (n = 35), as obese class II. The peak systolic velocity (PSV), end-diastolic velocity (EDV), resistive index, and pulsatility index values of the central retinal artery (CRA) and ophthalmic artery (OA) were evaluated with color Doppler ultrasonography. CT was measured at the subfoveal area and at 500-µm intervals nasal and temporal to the fovea up to a distance of 1500 µm by using the enhanced depth imaging technique of optical coherence tomography. Intraocular pressure (IOP) was measured with a Goldmann applanation tonometry. Results There was a significant difference in IOP values within the groups with the highest values in group 3 (17.6 ± 2.1 mmHg) and the lowest in group 1 (12.4 ± 1.7 mmHg). The CT in groups 2 and 3 was found to be statistically significantly lower than that in group 1 at all measurement points (p < 0.001). There was a statistically significant negative correlation between CT at all measurement points and BMI (p < 0.001). The mean CRA PSV, EDV, and OA EDV values were statistically significantly lower in each obese group than those values in group 1 (p < 0.001). The OA PSV values were significantly lower in group 3 (36.5 ± 5.9 cm/s) than those in group 2 (43.8 ± 4 cm/s) and group 1 (44.6 ± 5.2 cm/s) (p < 0.001). Also, significant associations were found between BMI and CRA PSV, CRA EDV, and OA PSV values (p < 0.001). Conclusion Obesity may predispose to eye pathologies by changing the ocular vascular circulation.
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Affiliation(s)
| | - Pinar Nalcacioglu
- Department of Ophthalmology, Yildirim Beyazit
University Medical School, Ankara, Turkey
| | - Mustafa Capraz
- Department of Internal Medicine, Amasya
University, Sabuncuoglu Serafeddin Training and Research Hospital, Amasya,
Turkey
| | - Kenan Varol
- Department of Radiology, Private Rumeli
Hospital, Istanbul, Turkey
| | - Ahmet Turan Kaya
- Department of Radiology, Amasya University,
Sabuncuoglu Serafeddin Training and Research Hospital, Amasya, Turkey
| | - Nihat Aydın
- Department of Ophthalmology, Amasya University,
Sabuncuoglu Serafeddin Training and Research Hospital, Amasya, Turkey
| | - Caner Kara
- Department of Ophthalmology, Zubeyde Hanim
Women’s Education and Research Hospital, Ankara, Turkey
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Topbas E, Bingol G, Gorgen O, Terzi B, Capraz M, Gur SG. Metabolic Syndrome Risk, Healthy Lifestyle Behaviors, and Physical Activity Levels of University Students. Turk J Endocrinol Metab 2022. [DOI: 10.5152/tjem.2022.22045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Tufek M, Capraz M, Kaya AT, Aydin N, Nalcacioglu P. Retrobulbar Ocular Blood Flow and Choroidal Vascular Changes in Patients Recovering from COVID-19 Infection. Photodiagnosis Photodyn Ther 2022; 39:102976. [PMID: 35724935 PMCID: PMC9212774 DOI: 10.1016/j.pdpdt.2022.102976] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/28/2022] [Accepted: 06/16/2022] [Indexed: 11/17/2022]
Abstract
Background To evaluate the effects of COVID-19 infection on the ocular vascular structure including choroidal thickness and retrobulbar blood flow values in comparison with healthy subjects. Methods Ninety eyes of 90 patients were included in this study. Participants were divided into Group 1 (n = 30) with mild COVID-19 infection, Group 2 (n = 31) with moderate disease, and Group 3 with age- and sex-matched healthy subjects (n = 29). Choroidal thickness was measured at the subfoveal area and at 500-µm intervals nasal and temporal to the fovea up to a distance of 1500 µm, using the enhanced depth imaging (EDI) technique of spectral coherence tomography (SD-OCT). The peak systolic velocity (PSV), end diastolic velocity (EDV), resistive index (RI), and pulsatility index (PI) values of the central retinal artery (CRA) and ophthalmic artery (OA) were evaluated with color Doppler ultrasonography (CDU). Results The choroidal thickness was significantly thinner in Group 1 and Group 2 than in Group 3 at all measurement points (p <0.001). This difference was not present between Group 1 and Group 2 who had COVID-19 disease of different severity (p>0.05).Among the retrobulbar blood flow parameters, OA PSV value was significantly lower in Group 1 and Group 2 compared to Group 3 (p = 0.025, p = 0.016, respectively). However, the CRA PSV and EDV and OA EDV values, and the CRA and OA PI and RI values were not statistically different between the groups (p> 0.05). Conclusion COVID-19 infection may predispose patients to ocular vascular pathologies by affecting both choroidal and retrobulbar blood flow.
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Affiliation(s)
- Melek Tufek
- Department of Ophthalmology, Amasya University, Sabuncuoglu Serafeddin Training and Research Hospital, Amasya, Turkey.
| | - Mustafa Capraz
- Department of Internal Medicine, Amasya University, Sabuncuoglu Serafeddin Training and Research Hospital, Amasya, Turkey
| | - Ahmet Turan Kaya
- Department of Radiology, Amasya University, Sabuncuoglu Serafeddin Training and Research Hospital, Amasya, Turkey
| | - Nihat Aydin
- Department of Ophthalmology, Amasya University, Sabuncuoglu Serafeddin Training and Research Hospital, Amasya, Turkey
| | - Pinar Nalcacioglu
- Department of Ophthalmology, Yıldırım Beyazıt University Medical School, Ankara, Turkey
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Kilinc C, Gückan R, Capraz M, Varol K, Zengin E, Mengeloglu Z, Menekse E. Examination of the specific clinical symptoms and laboratory findings of Crimean-Congo hemorrhagic fever. J Vector Borne Dis 2016; 53:162-167. [PMID: 27353587] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023] Open
Abstract
BACKGROUND & OBJECTIVES Crimean-Congo hemorrhagic fever (CCHF) is a fatal disease, caused by a tick-borne virus (Nairovirus), having a high mortality rate. The study was aimed to evaluate the risk factors, the presenting symptoms and findings of the patients with prediagnosis of CCHF disease, and to compare these variables between the CCHF-positive and CCHF-negative patients. It was also aimed to develop a scoring formula for the diagnosis of CCHF. METHODS In total, 281 patients who were admitted to the Sabuncuoglu Serafeddin Training and Research Hospital, Amasya, Turkey between 2011 and 2015 and were prediagnosed with CCHF based on the clinical symptoms, laboratory findings and risk factors were included in the study. The definitive laboratory diagnosis of patients with prediagnosis of CCHF was ensured via molecular and serological methods. In addition, a mathematical diagnostic scoring formula was developed for enhancing the laboratory results of CCHF. RESULTS The ratio of certain clinical symptoms such as fever (p<0.001), headache (p<0.001), widespread body pain (p<0.001), fatigue (p = 0.001), nausea and vomiting (p = 0.013) in CCHF-positive patients were found to be significantly higher compared to the ratio in CCHF-negative patients. In terms of laboratory findings such as presence of leucopenia (p<0.001), creatine kinase (CK) elevation (p<0.001), thrombocytopenia (p<0.001), aspartate aminotransferase/alanine aminotransferase (AST/ALT) elevation (p<0.001), lactate dehydrogenase (LDH) levels (p = 0.002), absence of abnormal findings on chest radiograph (p = 0.042), and the absence of anaemia (p = 0.007), the CCHF-positive patients had higher rates in comparison to CCHF-negative ones. INTERPRETATION & CONCLUSION It was inferred that certain clinical symptoms and laboratory findings such as fever, headache, widespread body pain, fatigue, leucopenia, nausea, vomiting, high CK levels, thrombocytopenia, AST/ ALT elevation and elevated LDH levels are highly specific and are required to be considered in the definitive diagnosis of CCHF, particularly in regions where this infection is observed as endemic.
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Affiliation(s)
- Cetin Kilinc
- Department of Microbiology, Sabuncuoglu Serafeddin Training and Research Hospital, Amasya University, Amasya, Turkey
| | - Ridvan Gückan
- Department of Microbiology, Sabuncuoglu Serafeddin Training and Research Hospital, Amasya University, Amasya, Turkey
| | - Mustafa Capraz
- Department of Internal Medicine, Sabuncuoglu Serafeddin Training and Research Hospital, Amasya University, Amasya, Turkey
| | - Kenan Varol
- Department of Radiology, Sabuncuoglu Serafeddin Training and Research Hospital, Amasya University, Amasya, Turkey
| | - Erman Zengin
- Amasya Institute of Public Health, Amasya, Turkey
| | - Zafer Mengeloglu
- Department of Medical Microbiology, Faculty of Medicine, Abant Izzet Baysal University, Bolu, Turkey
| | - Elif Menekse
- Laboratory of Biochemistry Department, Sabuncuoglu Serafeddin Training and Research Hospital, Amasya University, Amasya, Turkey
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Cayonu M, Capraz M, Acar A, Altundag A, Salihoglu M. Hearing Loss Related with Type 2 Diabetes in an Elderly Population. J Int Adv Otol 2014. [DOI: 10.5152/iao.2014.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Yanik K, Okuyucu A, Capraz M, Demir K, Kaya SA, Soylemez U, Altintop L. The results of sequence analyses in Familial Mediterranean Fever suspected cases and the investigation of incidence of MEFV gene mutation region in positive cases. Curr Opin Biotechnol 2011. [DOI: 10.1016/j.copbio.2011.05.335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Abstract
The aims of this study are to investigate the frequency of garlic usage in hypertensive population and to evaluate acute effect of garlic and garlic tablets on blood pressure in patients with hypertension. 4102 of the 7703 patients (53.3%) reported that they were using garlic. No significant effect on blood pressure was observed in any of the three groups (placebo, garlic or garlic tablets). Use of garlic is common among the hypertensive population, garlic and garlic tablets do not have acute blood pressure lowering effect, and a special education program informing patients and public about garlic is required.
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