Yazar "Ekim, Hasan" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim
    Öğe
    Effects of PON1 QR192 genetic polymorphism and paraoxonase, arylesterase activities on deep vein thrombosis
    (Walter De Gruyter Gmbh, 2023) Akbalik, Hasim; Polat, Muhammet Fevzi; Müderrisoğlu, Ahmet; Er, Zafer Cengiz; Caniklioğlu, Ayşen; Ekim, Meral; Ekim, Hasan
    Objectives: We aimed to evaluate PON1 QR192 polymorphism's (rs662) effects on levels of triglyceride, total cholesterol, high-density lipoprotein-cholesterol, low-density lipoprotein-cholesterol, glucose, and c-reactive protein, and paraoxonase-arylesterase activities among deep vein thrombosis patients and healthy subjects. Methods: Forty-five deep vein thrombosis patients and 45 healthy subjects participated in the study. Genetic analysis was performed by using polymerase chain reaction and sequencing. Paraoxonase and arylesterase enzyme activities were determined by a spectrophotometer. Serum levels of triglyceride, total cholesterol, high-density lipoprotein-cholesterol, low-density lipoprotein-cholesterol, glucose, and c-reactive protein were measured by a similar method. Results: There were no statistically significant differences between patients and controls regarding the frequency of variant allele for the PON1 QR192 polymorphism, activities of paraoxonase-arylesterase, and level of high-density lipoprotein-cholesterol. Triglyceride, total cholesterol, low-density lipoprotein-cholesterol, glucose, and c-reactive protein levels were significantly higher in patients compared to controls (p values were 0.005, 0.0002, 0.009, 0.0009, <0.0001, respectively.) Paraoxonase activity was found to be associated with PON1 QR192 genetic polymorphism (p<0.0001). However, we observed no association of PON1 QR192 polymorphism with arylesterase activity and, levels of triglyceride, total cholesterol, high-density lipoprotein-cholesterol, low-density lipoprotein-cholesterol, glucose, and c-reactive protein. Conclusions: There was no statistically significant difference between deep vein thrombosis patients and healthy subjects regarding variant allele frequency for the PON1 QR192 genetic polymorphism. In addition, paraoxonase and arylesterase activities were similar among the groups. These results indicate that PON1 QR192 genetic polymorphism and activity levels of paraoxonase-arylesterase have no effect on the development of deep vein thrombosis.
  • [ X ]
    Öğe
    MTHFR C677T (rs1801133) genetic polymorphism is associated with development risk of essential hypertension in the Turkish population
    (Springernature, 2022) Er, Zafer Cengiz; Muderrisoglu, Ahmet; Ekim, Meral; Ekim, Hasan
    Background Hypertension is a serious condition that is spread worldwide and may lead to severe complications such as heart attack, stroke, hypertensive retinopathy, and renal failure. Although some genetic and environmental risk factors are known to play a role in the etiology of hypertension, like most of the other multi-factorial diseases, its etiology is yet to be fully elucidated. Our study aimed to investigate the effects of methylenetetrahydrofolate reductase (MTHFR) C677T (rs1801133) and A1298C (rs1801131), factor V Leiden (FVL) G1691A (rs6025), and prothrombin (PT) G20210A (rs1799963) genetic polymorphisms on the development risk of essential hypertension and level of blood pressure in hypertensive patients. Results The frequency of the homozygous polymorphic TT genotype for the MTHFR C677T polymorphism was significantly higher in male hypertensive patients than in the male control group (27% vs 6.3%, p = 0.028). The rate of the variant T allele for the MTHFR C677T polymorphism was also significantly higher in male hypertensive patients compared to male healthy controls (51.4% vs 21.9%, p = 0.0004). There was no difference among hypertensive patients and healthy controls regarding the frequencies of MTHFR A1298C, FVL G1691A and PT G20210A polymorphisms. In addition, we found no difference between genotype groups regarding systolic and diastolic blood pressure levels in hypertensive patients. Conclusions Homozygous polymorphic TT genotype and variant T allele for the MTHFR C677T polymorphism may be considered as a risk factor for the development of essential hypertension in the Turkish male population.